阅读说明：本技术 用于分配器的再填充件 (Refill for a dispenser ) 是由 汉斯·格奥尔格·哈格莱特纳 于 2018-11-23 设计创作，主要内容包括：本发明涉及一种用于分配器(1)的再填充件,包括缠绕成卷筒(10)的材料幅和至少一个基本上轴向可调节的支撑销(12),其中所述至少一个基本上轴向可调节的支撑销(12)能从定义的内部的终端位置(I)出发基本上轴向从卷筒(10)离开地向外调节,在所述定义的内部的终端位置中,所述支撑销轴向超过卷筒(10)伸出。此外本发明涉及一种用于这样的再填充件的支撑单元和一种用于容纳再填充件和输出材料幅(15)的分配器。(The invention relates to a refill for a dispenser (1), comprising a material web wound into a roll (10) and at least one substantially axially adjustable support pin (12), wherein the at least one substantially axially adjustable support pin (12) is adjustable substantially axially away from the roll (10) outwards, starting from a defined inner end position (I) in which it projects axially beyond the roll (10). The invention further relates to a support unit for such a refill and to a dispenser for accommodating a refill and a web (15) of output material.)

1. Refill for a dispenser (1), comprising a web of material wound into a roll (10) and at least one substantially axially adjustable support pin (12), characterized in that the at least one substantially axially adjustable support pin (12) is adjustable substantially axially outwardly away from the roll (10) starting from a defined inner end position (I) in which it projects axially beyond the roll (10).

2. Refill according to claim 1, wherein the at least one substantially axially adjustable support pin (12) is adjustably supported between a defined inner end position (I) and a defined outer end position (A) and projects axially beyond the roll (10) in both end positions (I, A).

3. Refill according to claim 1 or 2, wherein at least one shaft support is provided in connection with the roll (10), on which shaft support at least one support pin (12) is supported axially displaceably.

4. Refill according to claim 3, wherein only one (12) of the two opposing support pins (12, 13) is axially movably supported, while the other opposing support pin (13) is fixedly connected to or formed on the shaft support (fig. 13a to 15 c).

5. Refill according to claim 3 or 4, wherein the shaft support extends through the spool (10) and has support pins (12, 13) on both sides, at least one of said support pins (12) being axially movably supported relative to the shaft support (fig. 13 a).

6. Refill according to claim 3 or 4, wherein two separate shaft supports are provided for the spool (10), which shaft supports are formed as, preferably substantially cylindrical, end caps (18) which are each inserted into the spool (10) at opposite ends, wherein the supporting pin (12) is supported on at least one of the end caps (18) in an axially displaceable manner. (FIG. 13 b).

7. Refill according to claim 3 or 4, wherein two separate shaft supports are provided for the cartridge (10), which shaft supports are formed as retaining tips (43) which are each inserted axially into the, preferably coreless, wound cartridge (10) at opposite ends, wherein the supporting pin (12) is supported axially displaceably on at least one retaining tip (43). (FIG. 13 c).

8. Refill according to one of claims 1 to 5, wherein at least one axially adjustable support pin (12) is rotatably supported relative to the spool (10) about the longitudinal axis of the spool.

9. Refill according to claim 8 and one of claims 3 to 7, wherein at least one axially adjustable support pin (12) is rotatably supported on the shaft support.

10. Refill according to any one of claims 3 to 9, wherein at least one shaft support is held in the cartridge (10) in a rotationally fixed manner, preferably by means of radially projecting projections (24).

11. Refill according to any one of claims 3 to 9, wherein at least one shaft support is rotatably held in the cartridge (10) relative to the cartridge.

12. Refill according to any one of claims 1 to 11, wherein the web of material (15) is wound into a coreless roll (10). (FIGS. 13a, 13 c).

13. Refill according to one of claims 1 to 11, wherein the web of material (15) is wound around a cylindrical core (9), preferably of cardboard. (FIG. 13 b).

14. Refill according to one of claims 1 to 13, characterized by stops (12 a; 11a, 11c) which define an inner and an outer end position (I, A) of the axially adjustable supporting pin (12).

15. Refill according to any one of claims 1 to 14, wherein the web (15) is a tissue paper, preferably provided with tear perforations.

16. Refill according to one of claims 1 to 14, wherein the web of material (15) is a tissue, preferably constructed without tear perforations.

17. Support unit for a refill according to one of claims 1 to 14, comprising a shaft support which is loadable into a web (15) of material wound into a roll (10) and is axially movably supported relative to the at least one support pin (12).

18. Support unit according to claim 17, characterized in that the support pin (12) is movably supported on or in the shaft support and preferably has a smaller diameter than the shaft support.

19. Support unit according to claim 17, characterized in that the shaft support and the axially movable support pin (12), seen in axial direction, are substantially one after the other.

20. Support unit according to one of claims 17 to 19, wherein at least one stop (12a) is mounted or formed on the axially movable support pin (12), which stop rests against at least one stop formed as a cooperating stop (11a) on the shaft support, wherein an inner end position (I) and an outer end position (a) of the support pin (12) are defined.

21. Support unit according to one of claims 17 to 20, wherein at least one axially adjustable support pin (12) is rotatably supported relative to the shaft support about the longitudinal axis of said shaft support.

22. Support unit according to one of claims 17 to 20, characterized in that the at least one support pin (12) is formed at least partially non-rotationally symmetrically about its longitudinal axis.

23. Support unit according to claim 22, characterized in that the support pin (12) has on its end side a groove (19) of non-rotationally symmetrical shape, preferably extending transversely to the longitudinal axis.

24. Support unit according to one of claims 17 to 23, characterized in that at least one support pin (12) has a preferably cylindrical neck (12c) and a head (12b) on the end side which is enlarged in diameter with respect to the neck (12 c).

25. A support unit according to claims 23 and 24, characterized in that the end side of the support pin (12) is formed by a cover surface of the head (12b) extending substantially perpendicularly to the longitudinal axis.

26. A support unit according to any one of claims 17 to 25, characterised in that the shaft support has support pins (12, 13) on both sides, at least one of said support pins being axially movably supported on the shaft support.

27. Support unit according to one of claims 17 to 26, wherein at least one axially movable support pin (12) is loaded by an energy storage.

28. Support unit according to claim 27, wherein the energy storage has a spring (17), a rubber-elastic unit (32), a magnet (33) and/or a fluid-filled piston-cylinder unit (34).

29. Support unit according to one of claims 20 to 28, wherein an engagement stop (11b) determining the inner end position can be passed over, so that the support pin (12) can be moved over said engagement stop into the fully inner transport position.

30. Support unit according to one of claims 17 to 29, wherein at least one of the two support pins (12) is provided with a back-engageable end, preferably a back-engageable head (12 b).

31. Support unit according to claim 30, wherein a flange is provided on the rear-engaging end of the support pin (12).

32. A support unit according to claim 30 or 31, wherein a non-rotatable surface about the roll axis (14) is provided at the back-engageable end of the support pin (12).

33. Support unit according to claim 32, wherein the non-rotating surface is arranged in a diametrically opposite end-side groove (19) on the back-engageable end of the support pin (12).

34. Support unit according to one of claims 17 to 33, wherein at least a part of the axially movable support pin is made of a rubber-elastic material (32) (fig. 26, 33, 34).

35. Refill comprising a support unit according to one of claims 17 to 34 and a web of material (15) wound into a roll, the support unit being incorporated into the web of material.

36. Refill according to one of claims 1 to 16 and comprising a support unit according to one of claims 17 to 34, wherein the support pin (12) is inside the roll (10) in the transport position (T) and does not project laterally (fig. 20 c).

37. Dispenser for sections of a refill comprising a web of material wound into a roll, in particular a paper dispenser, comprising at least one wall (3) in which a guide track (4) for a support pin (12) projecting axially from the roll (10) is provided and on which the roll (10) is guided axially, wherein the axial overrun of the support pin (12) beyond the roll (10) can be varied, characterized in that the guide track (4) has at least two sections offset in the direction of the rolling axis (14), between which a transition curve is provided which changes the overrun of the support pin (12) in the direction of the rolling axis (14).

38. Dispenser according to claim 37, wherein two mutually opposite walls are provided, which each comprise a guide track (4) and in each of which sections (5) are formed which are offset in the direction of the rolling axis (14).

39. Dispenser according to claim 38, wherein the segments (5) in the two guide tracks (4) are staggered in opposite directions.

40. Dispenser according to claim 39, wherein the sections (5) staggered in opposite directions enlarge the distance of the two guide tracks (4) from each other.

41. Dispenser according to claim 40, wherein the sections (5) staggered in opposite directions reduce the distance of the two guide tracks (4) from each other.

42. Distributor according to one of claims 37 to 41, characterized in that the offset sections (5) are arranged close to the introduction location (6).

43. Dispenser according to one of the claims 37 to 42, wherein the offset sections (5) are arranged in the immediate front of the dispensing position (7) or in the dispensing position (7).

44. Dispenser according to claim 42 or 43, in which the guide track (4) extends from the loading position (6) over the dispensing position (7) into the collecting chamber (8), characterized in that an axially offset second section (5) is provided between the dispensing position (7) and the collecting chamber (8), which second section in turn changes the distance of the two guide tracks (4) from one another.

45. Dispenser for a section of a refill, which refill comprises a material web (15) wound into a roll (10), wherein the refill has at least one supporting pin (12, 13) which can be guided in a guide track (4) of the dispenser from an introduction position (6) into a dispensing position (7), wherein the refill is rotatably supported in the dispensing position (7), characterized in that the dispenser has a checking device (27) for checking the axial movability of the supporting pin (12) relative to the roll (10) of the refill, wherein the output of the section of the material web (15) is released or blocked depending on the axial movability of the supporting pin (12).

46. A dispenser according to claim 45, characterized in that the dispenser is configured such that the output of a section of the material web (15) is released only upon axial movability of the supporting pin (12).

47. Dispenser according to claim 45 or 46, wherein the dispenser has a locking means, in particular in the form of a transition curve, in the guide track (4) from the introduction position (6) to the dispensing position (7), which prevents the refill before the dispensing position (7) is reached when the supporting pin (12) cannot be moved axially relative to the spool (10).

48. Dispenser according to claim 45 or 46, characterised in that a checking device (27) is provided in the region of the dispensing position (7) and that the axial displaceability of the supporting pin (12) of the refill in the dispensing position (7) is checked during the output of the material web (15) -in a preferably rotating reel-and prevents the output when the supporting pin cannot be axially displaced.

49. Dispenser according to claim 48, wherein the rotatability of the roll in the dispensing position is controlled by a locking device operated by the checking means.

50. A dispenser according to claim 48, characterized by a locking device (41) for the delivery stroke of the material web, which is operated by the check device (27).

51. Dispenser according to one of the claims 45 to 50, wherein the checking device (27) acts mechanically on the supporting pin (12) and controls the output or non-output of the material web (15) mechanically.

52. Dispenser according to one of the claims 45 to 50, wherein the checking device detects the position of the supporting pins in a contactless manner, preferably optically or electromagnetically.

53. A dispenser according to any of claims 37 to 52 including a refill according to any of claims 1 to 16 or 35 to 36.

Technical Field

The present invention relates to a refill for a dispenser, in particular a sanitary dispenser for dispensing toilet tissue or paper towels. Furthermore, the invention relates to a support unit for such a refill and finally also to a dispenser for a section of a refill comprising a web of material wound into a roll.

In the present application, the following concepts are used substantially as follows, without being limited thereto:

a dispenser: the dispenser is preferably a wall-mountable device comprising a housing for accommodating a refill comprising a web of material wound into a roll. The dispensers typically have a guide rail on the inside, which guides from an upper introduction position into a lower dispensing position. In which guide rails support pins projecting from the refill are guided. In the dispensing position, the refill can be rotated in order to unwind the material and output it from the dispenser section by section.

Refill piece: refill is understood to be a web of material, in particular paper, wound into a roll. A support pin protrudes from the refill on both sides, by which the refill is rotatably supported.

Support pin: a support pin extending from the refill is used to rotatably support the refill in the dispenser.

Shaft support: the shaft support is connected to the web of material wound into a roll and supports a support pin extending beyond the roll

There are at least three types of shaft supports:

-a shaft support extending substantially through the roll of the refill. Such shaft supports are called support bars.

Two separate shaft supports which are inserted laterally into a reel, preferably provided with a hollow cardboard core. Such shaft supports are called end caps.

Two separate shaft supports, which are preferably pressed laterally into the coreless wound roll in the axial region. Such shaft supports are called retaining tips.

A support unit: the structural unit comprising the shaft support and the support pins is referred to as a support unit, which as a whole can be inserted into the refill.

Background

Dispensers for a web of material (refill) wound into a roll are known in many embodiments. The material web is mainly paper, in particular toilet paper or toilet paper, household paper or the like, but also plastic films or metal foils. The dispensers often have opposing walls in which guide rails are provided from the filling position at least into the dispensing position and possibly further into a collection chamber of a support unit for empty, accommodating rolls.

I.e. a new refill is loaded into the two guide rails together with the two support pins of the support unit and then slid down into the dispensing position, typically under the influence of gravity. If the support pins are formed at the ends of the support rods, the empty support rods, after the reel has been used up, drop further down into the collection chamber and can be removed there.

If the refill is to be always the same and installed in the correct position, for example if the material web is therefore always provided in the same position, then both guide rails and also the two support pins are designed differently in order to prevent an opposite installation.

The coincidence of opposing pairs of elements of guide rail and support pin is called coding and known codes have, for example, the diameter of the support pin and the gap width of the guide rail, the support pin comprising the support groove and the webs on the guide rail engaging into the support groove, parallel non-rotating surfaces on the support pin and the guide rail, etc. With the aid of different codings, it is possible in particular to avoid refilling of the dispenser with unsuitable cartridges and to ensure the use of products which are coordinated with one another (EP 1927308B 1).

A further improvement of the above described coding is shown in WO2013/123536 a 2. The support bars (support units) for the material web wound into rolls depicted there have support pins which are rotatably supported on the remaining support bars. In the distributor, there are devices per se (in the simplest case ribs which engage in grooves of the supporting pin) which hold the supporting pin in a rotationally fixed manner. By the relative rotatability of the supporting pins with respect to the other supporting bars on which the material web is wound, the reel comprising the material web can be rotated in the dispensing position and thus the material web unwound, although-as already mentioned-the supporting pins are held non-rotatably relative to each other. When the "wrong" support rod is inserted, in which no relative rotatability between the support surface and the remaining support rod is given, the roll cannot be rotated in the dispensing position and the dispenser is locked. This function is generally referred to as "rotation coding".

Disclosure of Invention

The object of the present invention is to provide a further coding option for a dispenser, a refill or an associated support unit.

This object is achieved by a refill having the features of claim 1 or 36, a support unit having the features of claim 17 and/or a dispenser having the features of claim 37 or 45.

The essence of the invention is that the support pin of the refill or of the support unit of the refill is axially movably supported, with which axial coding is possible: a refill or a support unit for such a refill, which has only such an axially adjustable support pin, functions as intended in a suitably designed dispenser, whereas a refill or a support unit without such an axial displaceability does not enable the output of the material web. The axial coding can also be combined with a rotary coding according to WO2013/123536 a 2.

A support unit for a refill comprising an axially adjustable support pin is known per se, for example from GB 2362375A. The support pins can be pressed axially into the support elements formed as end caps there, in order to be able to achieve a more space-saving packaging of the refill in the transport carton. Axial coding in the sense of the present invention, which enables the release or locking of a certain refill depending on the axial displaceability of the supporting pin, is not disclosed in the prior art. There is also no defined inner end position of the supporting pin, in which it projects axially beyond the reel, as in the solution shown there the inner end position is flush with the material web, thus giving space-saving transport possibilities on a flat ground. By means of the configuration according to the invention of the refill according to a variant of the invention, in which the axially adjustable supporting pin, which in the inner end position already projects axially beyond the winding drum and can be moved axially outwards therefrom, can be detected relatively easily in the checking device of the dispenser and moved for checking the axial coding.

The axial length of the roll, which corresponds to the width of the material web, from the loading position into the dispensing position preferably corresponds to the free space between the walls of the dispenser without significant axial play. Because the sections of the guide rail which are offset in the direction of the rolling axis, i.e. in the direction of the axial length, cause that the length of the supporting pin which is guided by the guide rail and which projects from the roll must be changed when the non-axially movable roll is to be transferred into the dispensing position, only refills with axially movable supporting pins can be used.

The axial offset in the guide track and the length of the projecting support pin which can be changed following the offset thus allow a new type of coding (axial coding) and, if necessary, also improve the known coding variants in another embodiment.

The axial offset of the guide rails involves different solutions for the support elements, since the length of the support elements is enlarged or reduced depending on whether the offset section of the guide rail extends deeper or less deeply into the wall. The support rod is preferably two-part and the two parts are in particular telescopically movable into each other. However, the support bar can also be one-piece if the region is designed in the manner of an accordion.

In one embodiment, it is provided that in each of the two guide tracks a section is formed which is offset in the direction of the rolling axis. The length of the support unit must be enlarged or reduced, wherein in a third possibility the distance of the two guide tracks from each other can remain the same when the two sections are offset in the same direction.

If the mutually opposite sections of the two guide rails are offset in opposite directions, this preferably means an enlargement of the distance between the two guide rails, so that each support unit must be extended, in particular by pulling out the support pin. In the opposite case, it is also conceivable that the segments are offset from one another, so that the two supporting pins have to be shortened. This embodiment has the advantage that the guide rail and the supporting pin are each only pressed against one another and no measures are required to enable the supporting pin to be pulled out, for example a undercut slot or groove as guide rail and a rear-engaging end section on the supporting pin.

In order to avoid incorrect installation of the refill, in a preferred embodiment, the offset sections are arranged close to the insertion position. Axial displacement of the supporting pin is thus already required at the beginning of the guide track, and incorrect refills comprising rigid supporting pins can be removed again easily.

In a further preferred embodiment, it is provided that the offset section is arranged immediately before the dispensing position. This solution, although making the removal of the wrong refill difficult, also protects the dispenser against damage by using strength to press the wrong refill into the dispensing position, since said dispensing position is generally not directly accessible from the introduction position.

Following a displacement of the guide rails, the guide rails can again be pivoted back into the initial position, wherein the pulled-out support pin is again pushed in and the pushed-in support pin is again pulled out to the initial length. However, it is also possible to continue the guidance of the guide rail into the dispensing position immediately after the offset parallel to the feed section. This embodiment is advantageous in particular if the offset enlarges the distance between the guide rails and a collecting chamber for empty support rods is provided below the dispensing position. In this case, a preferred embodiment of the invention provides that an axially offset second section is provided between the dispensing position and the collecting chamber, in which second section the distance of the two guide tracks changes again, in particular is further enlarged in relation to one another. The second enlargement results in the two portions being completely pulled away from each other and thus each portion being smaller than the rest bar. The removal of the smaller part is thereby made easier, as is the removal, especially when using materials for the support bar which decompose in water.

The axially offset second portion can preferably be arranged below the dispensing position in the same guide track as the offset first portion or in an opposite guide track. The support bar can also be shortened again there by means of ramps or the like formed in the guide rails and can be discharged from both guide rails.

If each guide rail has offset sections, it is preferable for the two support pins to also be designed so as to engage behind one another. In particular, supporting pins which are provided at the end with a flange comprising a groove on the end side formed by a ring groove in the supporting pin are suitable as supporting pins, as described in the aforementioned EP 1927308.

The length-variable support bar, which can be passed through the guide track of the distributor comprising the axially offset sections, can preferably already be extended from the transport position in the insertion position. In the transport position, the support bars substantially correspond to the axial length of the paper rolls and therefore have the ideal precondition for a layered arrangement of the refill together with the support bars in the packaging board, since the support pins are lowered into each reel. The supporting pin is pulled out of the transport position into the defined inner end position required for the installation position and its axial extension changes as explained above when passing through the offset section.

Instead of a two-stage lengthening in turn in two mutually offset sections of the guide track, the separation of the two parts of the supporting rod can also take place immediately after the insertion position when passing through the offset first section of the guide track, since the roll in the dispenser is also adequately supported by the two no longer engaging parts of the supporting rod. The parts separated from each other have therefore fallen downwards therefrom after the paper has run out in the dispensing position.

If the support bar should be prevented from being reused for a new roll, it can be provided in a further preferred embodiment that the two parts of the support bar can be combined after they have been separated from one another no longer or only with a great expenditure of time to form a support bar of variable length with support pins. For example, a spreading or breaking element, a clamping plate or the like can be formed by the ends or edges of the two parts opposite the support pins, which make the displaceability of the engagement and telescoping of one another at least extremely difficult.

As already mentioned, each guide track can be formed as an undercut or non-undercut groove or as an undercut or non-undercut slot in the wall of the guide drum of the distributor or also as a projecting web, wherein the two support pins have respective end regions which ensure an axial exit or entry movement in the guide track. That is, the supporting pin may have a groove in the end side, an end flange with an enlarged diameter or a ring groove forming the end flange.

The invention does not only have a refill or support unit comprising at least one axially adjustable support pin, but also a dispenser which is suitable for accommodating such a support unit or refill.

In a distributor with the features of claim 37, the guide track is provided with a transition curve which changes the axial run-out of the supporting pin. I.e., the transition curve, attempts to move the support pin axially. When this is achieved, the coding is normal and the refill can reach into the dispensing position or there the withdrawal of the web of material can be achieved by rotating the refill. If the support unit or the refill is designed such that no axially adjustable support pin is present, then the output is not performed, for example, in that the support rod remains stationary in the transition curve.

A dispensing system according to claim 45 is provided, comprising a dispenser for sections of a refill and at least one refill having a web of material wound into a roll, wherein the refill has at least one supporting pin which is guidable in a guide track of the dispenser from an introduction position into a dispensing position, wherein the refill is rotatably supported in the dispensing position, wherein the dispenser has a checking device for checking an axial movability of the supporting pin relative to the roll of the refill, and wherein an output of a section of the web of material is released or locked in dependence on the axial movability of the supporting pin.

With such a checking device, the axial coding can be checked. If there is axial movability of the support pin relative to the spool of the refill, it is possible for the refill to be correctly coded and output. When, on the other hand, such axial displaceability is not present or not present in the correct manner (incorrectly coded refill), the output of the material web is prevented. Various possibilities are given for this: for example, a refill that is not correctly coded may be prevented until the dispensing position is reached on the way from the introduction position into the dispensing position. However, it is also conceivable to prevent the rotation of the refill and thus the output of the material web in the dispensing position when no correct axial coding is present. Other possibilities for preventing the output of the material web in the event of a wrong axial coding are also conceivable and possible.

Drawings

Further advantages and details of the invention and its preferred embodiments are explained further in the following description of the figures without being restricted thereto.

It shows that:

FIG. 1 shows a schematic oblique view of a dispenser for paper;

FIG. 2 shows a schematic view of the travel of the roll between the introduction position and the dispensing position of the dispenser;

FIG. 3 shows a schematic view of the travel of the roll between the introduction position and the collection chamber;

FIG. 4 shows a schematic view of the spool travel between the introduction position and the collection chamber of an alternative embodiment;

fig. 5 to 8 show a part according to fig. 2 in different views of two offset sections of the guide rail, including the part supporting the rods;

FIG. 9 shows a portion of a WC paper dispenser including views of the support bar in two positions;

FIG. 10 shows a portion of a WC paper dispenser including views of a second embodiment of a backing bar in two positions;

FIG. 11 shows a portion of a WC paper dispenser including views of a third embodiment of a backing bar in two positions;

FIG. 12 shows another schematic view of the travel of the spool similar to FIG. 2;

figure 13a shows an embodiment of a refill according to the invention comprising a continuous shaft support and an axially movable support pin;

fig. 13b shows an exemplary embodiment comprising two laterally inserted end caps, likewise in a schematic longitudinal section;

fig. 13c shows an exemplary embodiment comprising two laterally inserted support points, likewise in a schematic longitudinal section;

fig. 14a to c show an alternative embodiment to the embodiment of fig. 13a to 13 c;

fig. 15a to c show an alternative embodiment to the embodiment according to fig. 13a to 13 c;

fig. 16a shows a schematic longitudinal section of a part of the support unit (left end cap including axially pushed support pin);

FIG. 16b shows the same view of an axially adjusted pulled out support pin;

fig. 17a and b show an alternative design option to fig. 16a and 16 b;

fig. 18a and b show an alternative design option to fig. 16a and 16 b;

fig. 19a and b show an alternative construction option to that of fig. 16a and 16 b;

fig. 20a to c show an embodiment of a support unit (left end cap) comprising three different positions of an axially movable support pin;

FIG. 21a shows a side view of a schematic detail of one embodiment of a dispenser;

fig. 21b shows a corresponding front view;

fig. 21c shows a corresponding detail in a perspective view;

FIG. 22 shows a schematic front view of an embodiment of a portion of a dispenser according to the invention;

figure 23 shows an embodiment of a refill according to the invention comprising an axially adjustable support pin, a defined inner end position, but no outer defined end position;

fig. 24 shows a particularly preferred embodiment of the support unit according to the invention, which comprises a support pin which is axially adjustable between a defined inner end position and a defined outer end position;

figure 25 shows an embodiment of a refill according to the invention in longitudinal axial section;

FIGS. 26 and 27 show axial longitudinal sections of other embodiments, respectively;

fig. 28 to 30 respectively show axial longitudinal sections of an embodiment of a support pin according to the invention;

figure 31 shows an axial longitudinal section of an embodiment of a refill according to the invention;

figure 32 shows an axial longitudinal section of another embodiment of a refill according to the invention;

fig. 33 and 34 respectively show longitudinal sections in the axial direction of an embodiment of the support pin according to the invention.

Detailed Description

The material web 15 wound into the roll 10 (refill), in particular household paper or toilet paper, usually requires, after it has been cut from the roll strip, support pins 12, 13 projecting from the end sides of the roll 10 in order to load said material web into the guide tracks 4 (fig. 1) of the dispenser 1 after opening the cover 2 and to be rotatably supported there in the dispensing position 7, which guide tracks are formed in the wall 3 of the dispenser 1. The support pins 12, 13 are arranged at the ends of a shaft support, which is in particular designed as a support rod 11.

In order to avoid filling the dispenser 1 with the wrong roll, a locking device formed by axially offset sections 5 is formed near the insertion point 6 at the beginning of the at least one guide track 4, which can be overcome only by changing the excess length of the supporting pins 12 that engage in said guide track (i.e. by axial displacement thereof). If a refill with the wrong support bar (without axially movable support pins) is used, the web cannot pass the staggered section 5, since the wound web cannot move back and forth between the walls 3.

Fig. 2 shows a schematic process of loading a roll 10 into a dispenser 1, wherein only the wall 3 and the guide track 4 are shown dotted, wherein the guide track 4 shown on the right comprises two offset sections 5. The reel 10 comprises a support bar 11 comprising two axial parts 16a, 16b that can be pushed into each other, each of said parts having a support pin 12, 13 protruding from the reel 10. The support pin 12 on the right in the drawing has an end section 18, for example a flange, which can be placed on the back and which can be inserted into the guide rail 4. The second supporting pin 13 can be of cylindrical design, wherein the associated guide track can be formed by a simple groove. However, as illustrated in fig. 4, the second guide track and the second support pin 13 may also have the same or different characteristics.

When the reel 10 with the support rods 11 projecting on both sides is to be inserted into the distributor 1, firstly the correct orientation is taken into account, i.e. the support pins 12 provided with the end sections 18 that can be brought into engagement with one another must be inserted into the guide rails 4 provided with the offset sections 5. The uppermost illustration in fig. 2 shows the insertion position 6, from which the guide track 4 extends at least into the dispensing position 7, preferably also further into the collecting chamber 8 for the empty support rods 1.

When the section can lengthen the supporting pin 12 by axial pushing out and then shorten it again, the two sections 5 of the guide track 4, which are first offset to the right or outward and then back again, are behind the insertion position 6, which can be passed by the supporting bar 11 only on their way into the dispensing position 7. This is possible on the basis of the parts 16a and 16b of the rest bar 11 which are axially movable into each other. The offset sections 5 of the guide track thus form an example for a checking device with which the axial coding of the refill can be checked.

This is prevented by measures which are not described further here, that the parts 16a move together and the supporting pin slides out of the guide.

As shown in this embodiment, the guide path continues again in the initial line next to the offset section 5, and as soon as the portion 16b and the supporting pin 12 are pushed back again into the starting position, the further travel into the dispensing position 7 is free.

The support bars that are not movable in the roll, including the non-extendable or axially non-adjustable support pins, cannot pass the staggered section 5 of the guide track 4, since the roll is hindered from moving axially by the wall 3 of the distributor. The wrong roll inserted in this way can only be removed again from the insertion position 6.

Fig. 3 likewise shows a schematic process similar to fig. 2, the most important difference being that the guide track 4 shown on the right has two offset sections 5, the first of which is adjacent to the insertion position 6 and the second of which is arranged just before, in or after the dispensing position 7. In fig. 3, the dispensing position 7, to which the offset second portion 5 is connected, is indicated by the dashed-dotted axis 14 of the roll 10. The process is as explained for fig. 2, except that the recess is absent until the dispensing position 7. After the paper of the roll 10 has run out, the empty support rod 11 is moved further downwards in the guide by gravity or by a new roll or refill being fed in again and preferably into the mentioned collection chamber. During the travel to that point, the empty support rod 11 must pass through the offset second section 5, in which the two parts 16a and 16b are completely pulled apart from one another and can thus be removed separately and have a significantly smaller length than the original support rod.

If the material used for the support rods breaks down in the water, the two parts can also be removed into the waste water, since the length of the two parts is now so short that it can pass through a conventional waste pipe.

Fig. 4 shows a variant of fig. 3, in which two offset sections 5 are distributed over two guide tracks 4. The first offset section 5 of the right-hand guide track 4 is therefore again adjacent to the insertion position 6, and the second offset section 5 of the left-hand guide track is preferably after the dispensing position 7. Also in this embodiment, half of the support rods fall into the collection chamber 8. The two supporting pins 12, 13 have end sections 18 that can be brought into engagement with one another and slide in correspondingly configured guide rails 4, which prevent unintentional discharge from the guide rails when passing through the two offset sections 5. In particular, the flange-like end portion 18 formed outside the smaller-diameter ring groove or portion of the supporting pin 12 has a radial groove 19 at the end, into which a web 20 formed there engages when the pin is inserted into the guide rail 4 (see also fig. 5 to 8).

Fig. 2, 3 and 4 show schematically two-part telescopic support bar parts 16a, 16b which can be moved into one another and are provided with one or two back-engageable support pins 12, 13, the extension of which from the reel 10 can be varied.

Alternative constructions may serve the same purpose. The following are mentioned as examples:

1. the distance of the guide tracks 4 from one another can also become smaller when the sections 5 are offset inwards into the reel receiving space. The support unit then becomes shorter overall when passing through the offset section 5.

2. The two guide rails 4 can have sections 5 offset in the same direction in the same height, wherein a support unit suitable for this embodiment does not change its length, since the guide rails 4 are at the same distance from one another everywhere. But the axial exceedance of the two support pins 12, 13 varies.

3. The support bar 11 can also be one-piece if the support bar 11 has a region of variable length between two support pins, for example in the manner of an accordion, and thus an axial displaceability of at least one support pin is achieved (see also fig. 29).

4. When the support pin 13 is cylindrical and is not embodied so as to be flush with the back, the support rod 11 can have a spring 17 between the two parts 16a, 16b, which spring is shown, for example, in fig. 10 or 25.

Fig. 5 to 8 show in detail the engagement of the groove 19 formed on the supporting pin 12 of the supporting bar 11 into the guide rail 4 according to fig. 2, in which two offset sections 5 are arranged one above the other, so that the sections of the guide rail 4 lying above and below them are oriented parallel to one another. The two offset sections 5 merge into one another in a wavy transition curve (e.g., Agnesi curve).

The guide rail 4 in this embodiment has a cross section which, starting from the U shape, is provided with two webs 21 which point inward at the free ends of the legs and a web 20 which is raised in the center parallel to the two legs. Only one section 16b of the two axially displaceable sections 16a, 16b is shown for the support rod 11. Fig. 5 and 8 show two support rods 11 or parts 16b directly in succession, respectively, in order to make the axial offset v more clearly visible when passing through the offset section 5.

Fig. 9 to 11 show a part of a WC paper dispenser from a not depicted rear side, which can be fastened to a wall or the like. The wall 3 of the distributor 1 is shown in part, wherein in the left wall 3 in the drawing a simple slot is present as a guide rail, into which a cylindrical support pin 13 engages. The second guide rail 4 on the right in the drawing is clearly cut in length and has a cross section corresponding to the concave shape of the end section 18 of the support pin 12, which, as explained above, forms a flange that can be placed on the back and is provided with an end-side groove 19 in which a web 20 of the guide rail 4 slides. The supporting pin 12 is arranged rotatably with the portion 16b in the portion 16a, so that the reel 10 can be rotated with the rod-supporting portion 16a in the guide track 4 about the axis of rotation 14 in every position, even if the portion 16b or its supporting pin 12 is held in the dispenser on the webs 20 in a manner that the grooves 19 of the supporting pin are not rotatable relative to one another (additional rotational coding).

Fig. 9 shows the position of the supporting pin 12 in the dispensing position 7 of the reel, in which the end-side groove 19 is approximately horizontal. As can be seen from the width of the cut-out of the web 20, this web ends just above the dispensing point 7 and the end section 18 of the supporting pin 12 can be twisted at will here.

After passing through the two staggered sections 5, the portion 16b is pulled outwards, while the portion 16a remains in place, since it is obstructed by the winding of the paper thereon. The axial extension of the supporting pins can be seen in the supporting rods only shown when passing through the offset first portion 5. The letter v indicates the magnitude of the outward offset, which is preferably greater than the depth of the opposite guide rail 4. Since the non-extendable support bar, which does not engage, is pulled out of the second guide track in this case, the dispenser is locked (axially coded) and the output of the material web is prevented.

In fig. 10 a similar view is shown as in fig. 9, however the area below the dispenser is omitted. The two support rods 11 are drawn in succession here, the upper support rod being drawn in cross section immediately after the insertion point 6. A pin-shaped support pin 13 on the left side of the support bar 11 in the drawing is resiliently supported in the bore and a spring 17 presses the support pin 13 outwards into the guide rail 4. The other supporting pin 12 in turn has a specially shaped end section 18 with an end-side groove 19 and interacts with the guide rail 4 on the right in the drawing. Corresponding to the two offset sections 5, a rib 21 is formed on the right in the guide rail 4, and when the support pin 12 is pulled out as described above when passing through the offset sections 5, the support pin 13 is pressed into the support bar 11 by the rib against the spring 17. The spring 17 ensures that the support pin 12 remains pressed back into the guide track 4 when the reel 10 is moved down into the dispensing position 7 and the rib 21 is passed over.

Fig. 11 shows a similar view as fig. 9 and 10. The portion 16b in turn carries a supporting pin 12 comprising an end section 18 which, when passing the offset section 5, is pulled out of the portion 16 with an offset v. The other section of the guide rail 4, which is directed downwards into the dispensing position 7, extends in a staggered plane, so that the portion 16b can no longer be pulled out further and the protrusion of the supporting pin 12 cannot be enlarged further. Following the dispensing position 7, the guide track 4 has a second section 5, which is offset outward again and which, after the paper has been used up, has to be passed by an empty support bar 11. Since the supporting pin 13 is likewise engaged behind the guide rail 4 shown on the left, the part of the supporting rod 11 provided with the separating point is broken down and two significantly smaller pieces of the empty supporting rod 11 remain, which pieces slide further down into the collecting chamber. The release position has, for example, the illustrated collar 22 and a spring-biased clip 23, which acts on the collar 22. After the division into two smaller pieces 16a, 16b, the assembly of the support bar 11 without corresponding auxiliary tools is only difficult or impossible, so that reuse is made difficult. The illustration of fig. 11 corresponds approximately to the illustration of fig. 4.

Fig. 12 shows a further schematic process of loading a roll 10 into the dispenser 1, wherein the wall 3 and the guide track 4 are again shown. In the region of the insertion position, the distance between the two guide tracks 4 is greater than immediately before the dispensing position, where the sections 5 are offset inward. The support pins 12, 13 end cylindrically without special engagement elements, since the support pin on the right in the drawing is pressed further into the drum when passing through the offset section 5. If necessary, a spring, compressible foam material lining or the like can be arranged between the two parts 16a and 16 b.

The above description of embodiments of the invention can thus be summarized as follows:

in dispensers for sections of web material wound into rolls, in particular paper dispensers, between the walls 3 lying parallel to one another, a roll 10 comprising the wound web material is guided axially from the introduction position 6 into the dispensing position 7. The reel 10 has axially projecting support pins 12, 13 on both sides and the two walls 3 are provided with guide rails 4 for the reel 10. On at least one side of the dispenser, at least one offset section 5 is formed in the guide track 4, through which the axial extension of the supporting pins 12, 13 changes in the direction of the rolling axis 14 during the stroke of the reel 10 guided between the walls into the dispensing position.

In the embodiment shown in fig. 13a, a refill for a dispenser comprising a web 15 wound into a roll 10 is shown, wherein the support pin 12 is axially adjustably supported. The left support pin 13 is fixedly connected to the shaft support (support rod 11).

The axially adjustable support pin 12 has an internal stop 12a which cooperates with an internal mating stop 11a of the support bar. When the stop 12a comes to rest against the counter-stop 11a, a defined inner end position of the supporting pin 12 is reached. In this inner end position, the supporting pin or its head 12b provided with the radial groove 19 always projects beyond the reel 10 and can therefore be easily detected by a checking device in the dispenser, not shown here.

The radial grooves 19 are shown in fig. 13 on the right and in a schematic front view.

In the exemplary embodiment shown in fig. 13a, the right-hand support pin 12 is adjustably supported between a defined inner end position and a defined outer end position and projects axially beyond the reel drum 10 in both end positions. The outer end position is defined by the stop 12a resting against the mating stop 11 b. The axial stroke is indicated by v. The axial stroke is preferably 3mm to 30mm, in particular 5mm to 20 mm.

The support rods 11 have an advantageous diameter of between 0.5cm and 3 cm.

With the construction shown in fig. 13a, a substantially two-part shaft support overall can be realized, from which the supporting pin 12 can be moved axially by an amount v and at the same time remains without being lost between the two end positions. Clearly, fig. 13a is a schematic view. The support of the supporting pin 12 in the shaft support can of course be implemented in practice with improved performance by means of suitable sliding guides and adaptations.

The embodiment comprising the shaft support in connection with the reel 10 allows to stably anchor the shaft support to the web of material 15 wound into the reel. For the anchoring, radially projecting projections 24 can be provided, which in the exemplary embodiment shown in fig. 13a are designed in the form of blades. Such a construction allows the support rod 11 to be pressed axially into the already wound material web. After the pressing-in, the projection 24 ensures that the shaft carrier is held in the reel 10 in a manner that is in any case rotationally fixed and also axially immovably in the presence of normal forces. The relatively loosely axially movable coding part is formed by a supporting pin 12 which is limitedly movable between two end positions.

The embodiment shown in fig. 13a relates to a material web 15 which is advantageously wound into a coreless roll 10 and thus allows winding of a long material web at a given outer diameter.

In order to achieve axial coding, in which it is determined in the dispenser whether the support pin can be moved axially relative to the refill (the cartridge 10), it is in principle sufficient if, as shown in fig. 13a, only one of the two support pins is axially movable, i.e. the support pin 12 on the right is axially movable. This allows a simpler construction, since the left-hand support pin 13 can be formed, for example, as an injection-molded part in one piece with the support bar 11 (shaft support), which is preferably made of plastic.

In the exemplary embodiment shown in fig. 13a, the shaft support is formed as a continuous support rod 11 which extends substantially over the entire drum 10, with support pins 12, 13 projecting on both sides. This allows a good and accurate support of the material web, in particular a coreless wound.

In the exemplary embodiment shown in fig. 13b, two shaft supports, namely a left-hand and a right-hand end cap 18, are provided, which are mounted in a clamping manner from the outside in a cylindrical cardboard core. The web of material 15 is then wound around the cardboard core 9 into a roll 10.

The left end cap 18 is of standard design and has a support pin 13 connected thereto in one piece.

The right-hand end cap 18 is formed separately according to a preferred embodiment of the invention. I.e. the end cap guides an axially movable second support pin 12 which, like the support pin in fig. 13a, is axially movable with a stroke v. Here again a schematic drawing. The exact support of the support pin 12 in the end cover 18 on the right can of course be implemented somewhat differently in detail in order to meet the requirements for use in the distributor.

In fig. 13c, a possible support for a coreless wound web of material is again shown. Here again, two separate shaft supports are provided, which in this case are designed as holding tips 43, which are each pressed into the coreless wound roll 10 at opposite ends.

The relative axial displaceability of the support pin 12 on the right is similar to that achieved in the embodiment according to fig. 13a and 13 b. The axially movable supporting pin 12 is, in turn, axially movable between two defined end positions (i.e. an inner and an outer end position defined by a stop), but is finally retained without being lost.

In all the embodiments according to fig. 13a, 13b and 13c, a rotary coding is also provided in addition to the axial coding, in which the support pin 12 on the right is not only axially displaceable but also torsionally supported relative to the drum 10 or the shaft support.

When the distributor is installed, the groove 19 in the head 12b of the right support pin 12 enters the web 20, as is shown, for example, in fig. 5. The entire support pin 12 is thus held in a non-rotatable manner and prevents a rotation of the reel 10 in the direction of the unwinding arrow 25. By means of the rotatable support of the supporting pins 12 on the shaft carrier only (and that is the realization of a rotary coding), the spreading of the material web in the direction of the spreading arrow 25 can take place despite the non-rotatable holding of the supporting pins 12. In the left-hand supporting pin 13, it can simply rotate in a guide track, not shown here, of the distributor. It is sufficient to realize axial coding and rotational coding on the right in fig. 13a, 13b, 13c on one side.

In principle, the rotation of the (right) support pin 12 relative to the drum 10 can also be achieved in that the shaft support is held in the drum in a sliding manner — in terms of rotation. A better anchoring of course occurs if the shaft support is connected to the drum in a relatively fixed manner and the possibility of twisting the (right-hand) support pin 12 is achieved in that it is supported so as to be rotatable relative to the shaft support and is held rotatably in said shaft support.

The material web may advantageously be a toilet paper, preferably provided with tear perforations, for incorporation in the sanitary dispenser.

However, it is also possible for the material web to be a tissue, which is preferably formed without tear perforations.

However, in addition to webs of paper, other webs of material are also conceivable, for example cling film or other plastic films. Even metallic films, in particular aluminum foils, can be wound into a material web and used in the present invention.

Instead of a roll wound around a cardboard core 9 as shown in fig. 13b, a roll may also be used which is not coreless, however without a separate cardboard core 9. The end cap 18 is then simply fitted directly into the cavity of the web roll or the web roll is wrapped around the end cap 18.

In the exemplary embodiment shown in fig. 13a to 13c, the rotational coding is realized by a rotationally asymmetrical design of the head 12b of the support pin 12, wherein the radially running grooves 19 give a rotationally asymmetrical design.

In the exemplary embodiment shown in fig. 14a to 14c, the proportions are substantially the same as in the exemplary embodiment according to fig. 13a to 13 c. The configuration of the head 12b of the support pin 12 differs only on the right, wherein a square (or generally polygonal) head is provided instead of the groove 19. The head can also be held simply in a non-rotatable manner in a not shown dispenser or its guide track.

As is shown in fig. 15a to 15c, which again largely corresponds to fig. 13a to 13c, it is also possible for the head 12b of the support pin 12 to be of rotationally symmetrical design and thus to be rotatable together in the distributor in the direction of the small arrow 26. It is therefore not necessary and preferred in this embodiment that the support pin 12 is twistable relative to the shaft support. The rotation coding is not provided in this embodiment. This rotational encoding, while perhaps preferred for the inventive concept, is not required. It suffices that at least one of the two support pins (the support pin 12 on the right here) is supported axially movably in order to be able to carry out the inventive idea of axial coding.

In the embodiment shown in fig. 16a and 16b, an embodiment of the support unit according to the invention is shown, in this case on the left side of the schematically represented reel 10, which is made up of the wound web of material 15. The support unit itself has a shaft support which can be pushed into the cardboard core 9 of the reel 10, for example. The small end stop 11c formed by the radially projecting flange prevents the shaft support formed as the end cap 18 from being pushed too far into the drum 10.

In fig. 16a, a defined inner end position I is shown, in which the head 12b of the supporting pin 12 always projects further beyond the end side of the reel 10 (wound material web 15). The inner end position is defined by a flange-shaped stop 12a or a mating stop 11 a. That is, by these stoppers 12a and 11a, the support pin 12 cannot be pushed further inward. However, the support pin can be pushed outward in the direction of arrow 42 to achieve the axial coding according to the invention and more precisely with a stroke v in order to reach the outer end position a, which is shown in fig. 16 b. This outer end position is again defined by similar stops and mating stops.

The invention relates not only to a refill, but also to a support unit for such a refill, wherein the support unit has a shaft support which can be inserted into a material web 15 wound into a roll 10 and is supported axially movably relative to at least one support pin. These support units are shown, for example, on the right in fig. 13a to 15c and may also be sold separately without the material web 15 wound into a roll 10.

Fig. 17a and 17b show an alternative embodiment of the support unit according to the invention, in which the support pin 12 surrounds the shaft carrier instead of being pushed into it, as is shown in the exemplary embodiment according to fig. 16a and 16 b. Fig. 17a shows the inner end position and fig. 17b the outer end position. The two end positions are defined by stops and cooperating stops.

In the exemplary embodiment shown in fig. 18a and 18b, the inner and outer end positions defined by the stop and the mating stop are again shown. There is a spring 17. The spring 17 always tries to press the support pin 12 into the outer end position a according to fig. 18 b. The checking device provided in the distributor then only has to exert a force in one direction, i.e. from the outer end position into the inner end position, in order to move the supporting pins 12. The spring 17 accomplishes this in the other direction. A simpler checking device acting in force "one-dimensional" is therefore possible.

Fig. 19a and 19b show two further exemplary embodiments which are constructed analogously to the end cap according to fig. 16a and 16 b. Only the holder and the stops or mating stops for defining the outer and inner end positions are slightly different in construction.

In the exemplary embodiment of the refill according to the invention or of the support unit according to the invention shown in fig. 20a to 20c, starting from a construction similar to fig. 16a and 16, an internal counter stop 11b is provided which can be passed over and which defines an internal end position I, as shown in fig. 20 b. The two functions can be fulfilled by the fact that the mating stop 11b is in general traversable, which is made, for example, of small, traversable, optionally elastic, projecting peaks. On the one hand, the engagement stops can determine a defined inner end position I (fig. 20b), and on the other hand, they can also be allowed by their overrideability, the supporting pin 12 still entering further into the reel 10 or the shaft support located therein, as shown in fig. 20 c. This is then the transport position T in which narrow support of the refill, for example in the outer cardboard, is possible. Despite this push-in possibility into the transport position T, the internal end position is also determined in a defined manner, as shown in fig. 20 b.

In a number of the illustrated embodiments, in particular in the embodiment according to fig. 13a to 20c, the support pin 12 is movably supported on the shaft support (fig. 17a, 17b) or in the shaft support (the remaining illustrated figures) and preferably has a smaller diameter than the shaft support. The shaft support can thus be held clamped radially on the outside in the wound material web, while radially further on the inside the support pin 12 is axially movable.

It is also possible for the shaft support and the axially movable supporting pin 12 to be arranged substantially one behind the other, as is the case, for example, in fig. 25, 26, 27 and 30, which are explained in more detail below.

As can be seen from the embodiments described so far, the supporting pin 12 advantageously has a neck 12c, which is preferably cylindrical, and a head 12b, which is enlarged in diameter relative to the neck 12 c.

With this construction, as shown in fig. 5 to 8, a mechanical test device, for example in the form of a curved mechanical rail, can move the support pin in the axial direction and, more precisely, on the one hand pull it out of the refill, i.e. move it from an inner end position into an outer end position, but also act on the support pin in the opposite direction. This can be done by engaging the head 12b behind the neck 12 c.

Good support and movement possibilities of the supporting pin in the guide track are possible if the end side of the supporting pin is formed by a cover surface of the head 12b which extends substantially perpendicularly to the longitudinal axis.

For the principle operating principle of the invention, it is only necessary that one of the two support pins is formed axially displaceable according to the invention. Embodiments are also contemplated and possible in which both support pins are axially movable. This is the case, for example, in the embodiment shown in fig. 10. The left support pin 13 and the right support pin 13 are here axially displaceable relative to a shaft support embodied as a support bar 11. The left support pin 13 is loaded there by a spring 17 or generally by an energy store. As energy store, rubber-elastic units (fig. 26), magnets (fig. 27) or fluid-filled piston cylinder units (fig. 28) are also conceivable instead of mechanical springs 17.

These figures are explained in more detail next:

the present invention relates not only to a refill or a support unit for such a refill but also to a dispenser. This has already been explained at the beginning with the aid of fig. 1 to 12. A variant of the invention provides a dispenser for a section of a refill comprising a web of material wound into a roll, wherein the refill has at least one supporting pin which is guidable in a guide track of the dispenser from a lead-in position into a dispensing position, wherein the refill is rotatably supported in the dispensing position. The dispenser has a checking device for checking the axial displaceability of the supporting pin relative to the roll of the refill, wherein the output of a section of the material web is released or locked depending on the axial displaceability of the supporting pin. The checking device according to the invention is implemented in the dispenser shown in fig. 1 to 12 essentially mechanically by axially offset (curved) sections of the guide track. In this section, the test device attempts to move the support pins 12 axially and, depending on the axial movability, then releases or locks the output of the material web 15. This release or locking or disabling of the function can take place on the way from the web of material (refill) wound into a roll, which is loaded into the dispenser above, down into the actual dispensing position, so that the check takes place before the dispensing position is reached, in which the roll is then rotated for the output of paper. However, it is also possible to carry out the check in the dispensing position, as is shown schematically in fig. 21a and 21b, for example. Here, the support rods 11 (axle carriers) are "normal", i.e. not designed according to the invention. The support bar has a support pin 12 which is not axially movable relative to the support bar 11 but is fixedly fastened thereto. The support pin has a head 12 b. The checking device, generally designated 27, now attempts to continue the axial movement of the supporting pins in the dispensing position of fig. 21a or 21b, when the material web 15 is pulled out downwards and the reel 10 is thus rotated in the clockwise direction (21 a). For this purpose, the test device has a friction roller 27a which bears against the material web 15 and from which the material web is set in rotation during the withdrawal. As shown in fig. 21c, the friction roller 27a has curved convex peaks 28 on its end side. This curved convex peak strikes a test rod 29 which, as shown in fig. 21b, is supported movably in a bearing 30 and is loaded to the left by a spring 31. When the raised peaks 28 hit the check rod 29 during rotation, they push the check rod to the right. The fork-shaped end 29a surrounding the supporting pin 12 then pulls the supporting pin to the right by engaging behind the head 12 b. When the "normal" support rod 11 or shaft support is now used, then when it is pulled out to the right, the left support pin 13 falls out of the holding in the dispensing position and the entire reel 10 or refill is then no longer supported correctly and prevents the output. However, if the right-hand support pin 12 is axially displaceable relative to the inserted support rod 11, as provided according to the invention, the support pin 12 can oscillate during the pulling-out movement without the support rod 11 and the left-hand support pin 13 connected in one piece therewith falling out of its support. Such a refill or such a support unit comprising an axially movable right support pin then constitutes an axial check.

Fig. 22 shows a checking device 27 for a reel 10 in a dispensing position comprising a web 15 wound around a support bar 11. The right support pin 12 is axially displaceable. The checking device has a checking magnet 37 which cooperates with a checking magnet 38 on the outer end of the axially movable supporting pin 12. The check magnet 37 attempts to move the support pin 12 to the right in fig. 22. If this is done on the basis of the axial displaceability of the support pins, said support pins enter the grating 39 and the electronic evaluation device releases a schematically illustrated locking device 41, so that the output of the material web can take place. When the support pin 12 is not axially movable, the grating 37 does not respond and the evaluation device 40 locks the output by the locking means 41. In this case, the axial displaceability can be checked in the dispensing position, in general, electromechanically with the testing device 27.

Fig. 23 shows an embodiment of a refill or cartridge 10 according to the invention, which comprises a shaft support embodied in the form of a support rod 11, wherein the right-hand support pin 12 is axially displaceable, while the left-hand support pin 13 is formed integrally with the support rod 11. In this embodiment, a defined inner end position I is provided in which the supporting pin 12 always projects beyond the refill. This is defined by the fact that the support pin, which is T-shaped in cross section, rests against the inner end on the bottom of the blind hole in the support rod 11.

Starting from this inner end position, the supporting pin 12 can then be pulled outward, wherein in principle no defined outer end position has to be provided to achieve the functionality of the invention. That is, in the embodiment shown in fig. 23, the support pin 12 is loosely fitted and can be completely separated from the support rod 11 when it is taken out to the right in the directions of the two arrows. It is of course possible to refer to measures by which the supporting pin 12 does not come out of the supporting rod 11 during transport.

In the exemplary embodiment shown in fig. 24, a particularly preferred embodiment with a shaft support or support rod 11 is concerned, which has laterally projecting projections 24, which provide good retention in the material web wound into a roll. The left-hand support pin is formed in one piece with the support bar 11, while the right-hand support pin 12 is axially displaceable according to the invention and more precisely with a displacement path v, wherein stops and counter-stops not shown in detail here define and define the inner and outer end positions. The right-hand support pin 12 is also rotatable in the axis of rotation or rolling axis 14 and has a groove 19 or generally a non-rotating surface on the end side. With such a support pin, both rotary coding and axial coding can be realized.

In the exemplary embodiment shown in fig. 25, the right-hand support pin 12 is arranged in tandem with the actual support bar 11 or the shaft carrier together with the left-hand support pin 13 in a line, i.e., as viewed in the axial direction. Between which there is an energy storage in the form of a pressure spring 17.

The inner end position shown in fig. 25 is defined in that the inner end of the supporting pin 12 rests against the right-hand end of the supporting rod 11. Here analogously to the embodiment according to fig. 23, there is no external defined terminal position.

Fig. 26 is similarly constituted. Here, however, the energy store is essentially formed by a rubber-elastic unit 32, which is fully compressed in fig. 26 and thus determines the inner end position. Starting from this inner end position, the supporting pin 12 can be moved outward in the direction of the arrow on the right, wherein the rubber-elastic unit 32 elongates.

In the exemplary embodiment shown in fig. 27, the right-hand support pin 12 is axially displaceable relative to the shaft support or support rod 11 and partially itself also acts as a shaft support. The two portions 16a and 16b are arranged one behind the other in the axial direction. The magnet acts in the push-apart direction between the two parts 16a, 16b and thus forms an energy store which attempts to press the two parts 16a and 16b apart from one another.

A similar function is implemented in the embodiment according to fig. 28. The piston-cylinder unit 34 acts here as an energy store between the two parts 16a and 16b, wherein the cylinder is filled with a gaseous compressible fluid 35. The sealing means are indicated at 36. The piston-cylinder unit 34 here also acts as an energy store, which presses the two parts 16a and 16b apart from one another. In all the embodiments according to fig. 25 to 28, the possible test devices need only exert a force axially inwards in one direction. The energy store then acts in the other direction, which is realized in various ways (spring 17, rubber-elastic unit 32, magnet 33 or piston-cylinder unit 34).

Fig. 29 shows a one-piece embodiment, in which the spring 17 is formed in one piece with the support rod 11 or the right-hand support pin 12.

Fig. 30 schematically shows a simple embodiment of a support unit according to the invention comprising two portions 16a and 16b arranged one behind the other in the axial direction, wherein the left portion 16a has a projection 24 and functions as a shaft support in the refill. The right part 16b is at the same time a shaft support and at its right end a support pin 12. The inner defined end position is realized in that the two parts 16a and 16b abut against each other. Fig. 30 also shows a small gap between the two parts for reasons of clarity, but the gap disappears when the inner end position is reached.

In the embodiment of the refill according to the invention according to fig. 31, two successive parts 16a and 16b are likewise provided, as seen in the axial direction, but said parts are additionally connected to one another in an axial tongue-and-groove connection for greater stability.

In the embodiment of the refill according to the invention shown in fig. 32, the supporting pin 12, which is supported axially displaceably in the supporting rod 11 or the shaft support, does not have a separate head. The test device must then be implemented differently from that in fig. 1 to 11. For example, the inspection equipment may attempt to move the support pins 12 axially by frictional engagement. Depending on the test result, a release or locking of the output in the sense of an axial coding can then be obtained by suitable mechanical or electronic control. Fig. 32 shows that the head 12b, which can be brought into engagement with the back, is preferred, but is not required in principle for the described operating principle.

In the exemplary embodiment shown in fig. 33 and 34, again rubber-elastic elements are used in order to achieve an axial displaceability of the support pin 12, more precisely of its head 12 b. In the exemplary embodiment shown in fig. 33, the head 12b is made of a relatively hard material and only the neck 12c is made of a rubber-elastic material (including T-shaped anchors projecting on both sides in the support rod 11 and the head 12 b). In the exemplary embodiment shown in fig. 34, the head 12b itself is also made of a rubber-elastic material.

List of reference numerals

1 Dispenser

2 cover

3 wall

4 guide rail

5 axially staggered sections

6 introduction position

7 dispensing position

8 collecting chamber

9 paperboard core

10 reel

11 support rod

11a mating stop

11b internal mating stops

11c end stop

12 support pin

12a stop part

12b head

12c neck part

13 supporting pin

14 rolling axis

15 webs of material

16a, b support the axially movable part of the rod

17 spring

18 end cap

19 (radial) groove

20 contact piece

21 contact piece

22 flange

23 clip

24 projection

25 spreading arrow

26 small arrow

27 inspection device

27a rubbing roller

28 convex peak

29 check rod

29a (forked) end

30 bearing

31 spring

32 units of rubber elasticity

33 magnet

34 piston-cylinder unit

35 fluid

36 sealing device

37 inspection magnet

38 magnet

39 grating

40 evaluation device

41 locking device

42 arrow head

43 holding tip