阅读说明：本技术 弹簧夹的定位装置 (Positioning device of spring clamp ) 是由 琳达·布雷德班德 米迦勒·萨默 弗兰克·兰格 于 2018-04-25 设计创作，主要内容包括：本发明涉及一种弹簧夹(1),具有一夹带(2)及一定位装置(3),所述定位装置(3)用于将所述弹簧夹(1)预先定位在一软管的一软管端上,所述定位装置(3)具有支撑带(7),所述支撑带(7)的一接触区域(8)紧靠所述夹带(2)的一外表面(6),并且所述支撑带(7)在相对于所述弹簧夹(1)一轴向方向(A)的一侧具有一定位器(4),所述定位器(4)具有设置在所述支撑带(7)的所述末端的一固定装置(13),并且在所述支撑带的一另一末端所述支撑带具有一保持器(5)。一连接板(9)形成在所述接触区域(8)与所述定位器(4)之间的所述支撑带(7)内,所述连接板在相对所述弹簧夹(1)的一径向(R)上往内定向,并且所述支撑带(7)在所述定位器(4)的区域内具有至少两个区域(10、11),所述第一区域(10)在所述轴向方向(A)上从所述连接板(9)朝离开所述夹带延伸,并且所述第二区域(11)从第一区域(10)实质上垂直地延伸。(The invention relates to a spring clamp (1) having a clamping strap (2) and a positioning device (3), wherein the positioning device (3) serves for pre-positioning the spring clamp (1) at a hose end of a hose, wherein the positioning device (3) has a support strap (7), wherein a contact region (8) of the support strap (7) abuts against an outer surface (6) of the clamping strap (2), and wherein the support strap (7) has a positioner (4) on one side in relation to an axial direction (A) of the spring clamp (1), wherein the positioner (4) has a fixing device (13) arranged at the end of the support strap (7), and wherein the support strap has a holder (5) at the other end of the support strap. A connecting plate (9) is formed in the support band (7) between the contact region (8) and the retainer (4), said connecting plate being oriented inwardly in a radial direction (R) relative to the spring clip (1), and the support band (7) having at least two regions (10, 11) in the region of the retainer (4), the first region (10) extending in the axial direction (A) from the connecting plate (9) away from the clip band, and the second region (11) extending substantially perpendicularly from the first region (10).)

1. A spring clamp (1) having a clamping strap (2) and a positioning device (3), said positioning device (3) pre-positioning said spring clamp (1) on a hose end of a hose, wherein said positioning device (3) has a support strap (7), a contact area (8) of said support strap (7) abutting against an outer side (6) of said clamping strap (2), and said support strap (7) has a positioning device (4) on a side with respect to an axial direction (a) of said spring clamp (1), said positioning device (4) has a fixing device (13) arranged at said end of said support strap (7) and has a holder (5) at a further end of said support strap (7), characterized in that: a connecting plate (9) is formed in the support band (7) between the contact region (8) and the retainer (4), said connecting plate being oriented inwardly in a radial direction (R) relative to the spring clip (1), and the support band (7) having at least two regions (10, 11) in the region of the retainer (4), wherein the first region (10) adjoins the connecting plate (9) in the axial direction (A) away from the clip band and the second region (11) adjoins the first region (10) substantially perpendicularly.

2. The spring clip (1) according to any one of the preceding claims, characterized in that: the support band (7) has a smaller extent in a circumferential direction (U) of the spring clamp (1) than in the axial direction (A).

3. The spring clamp (1) according to claim 1, characterized in that: the connecting plate (9), the retainer (4) and the retainer (5) are placed axially outside the spring clamp (1).

4. The spring clip (1) according to any one of the preceding claims, characterized in that: the connecting plate (9) rests transversely on the clamping strap (2).

5. The spring clip (1) according to any one of the preceding claims, characterized in that: at least one notch (17) is provided in the region of the connecting plate (9), wherein a clip (18) can be bent from the support band (7) in the direction of the clamping strap (2) because of the notch (17).

6. The spring clip (1) according to any one of the preceding claims, characterized in that: the clip (18) engages at least partially around the clip band in a radial direction (R).

7. The spring clip (1) according to any one of the preceding claims, characterized in that: the contact region (8) has a bend in a circumferential direction (U) of the spring clip.

8. The spring clip (1) according to any one of the preceding claims, characterized in that: the positioner (4) has a third region (12), the third region (12) having a shorter extent along the support band (7) than the first region (10) of the positioner (4).

9. The spring clip (1) of claim 8, wherein: the third region (12) of the positioner (4) encloses an obtuse or right angle with the second region of the positioner on an inner side (19) of the support band.

10. The spring clip (1) of claim 9, wherein: the third region (12) of the retainer (4) is bendable around a hose end of a hose, and the second region (11) of the retainer (4) in turn rests on the hose end of the hose in the axial direction (A).

11. The spring clip (1) according to any one of the preceding claims, characterized in that: the retainer (5) engages at least partially around the clamping strap (2) of the spring clamp (1) in a radial direction (R) relative to the spring clamp (1).

12. The spring clip (1) according to any one of the preceding claims, characterized in that: the retainer (5) has at least one retaining piece (15), the retaining piece (15) assuming a shape of the support band (7).

Technical Field

The invention relates to a spring clip having a clamping strap and a positioning device for pre-positioning the spring clip on a hose end of a hose, wherein the positioning device has a support strap, a contact region of which rests on an outer side of the hose, and the support strap has a positioning device on one side relative to an axial direction of the spring clip, the positioning device having a fixing device arranged at one end of the support strap and a holder at the other end of the support strap.

Background

For example, a spring clip is used to clamp a hose to a fitting. For this purpose, a spring clip is pushed in the pretensioned state into a hose and/or a fitting. In order to establish a tight connection between the hose and the fitting, the pretensioning of the spring clamp is released, so that the spring clamp connects the hose to the fitting in a sealed manner by means of its clamping force. In order to generate the clamping force of the spring clamp, a material with high strength is selected, which must have a corrosion-resistant coating.

Before releasing the spring clamp and thus clamping it on the assembly of the hose and the fitting, the spring clamp has an inner diameter which, for mounting it, is larger than the outer diameter of the hose or the fitting in the mounting region.

Thus, the spring clip cannot be securely fixed to the temporary assembly of the hose and the fitting prior to final installation.

German patent document DE 102006048344 a1 describes a hose clamp in which, for the purpose of preliminary assembly, a positioning device is provided on an outer side of the clamping strap of the hose clamp, which positioning device has a retainer that can be pressed into the hose wall of a hose. The plurality of claws that can be pressed into the hose wall are arranged in a circumferential direction of the clip band. The hose clamp also has a second positioning device which is arranged in the interior of the clamping strap and has an axial stop, likewise with claws which can be pressed into the hose wall. The second positioning means extends over a substantial part of the circumference of the hose clamp.

German patent document DE 102008047038 a1 describes a spring clip having a pre-positioning device which is arranged on the outer side of the spring clip and can be fixed to the spring clip by means of a plurality of retainers which engage around the clamping band of the spring clip. In order to accommodate the various holders and to accommodate the tips for fixing the spring clips, the positioning means of the prior art extend over a large part of the circumference of the spring clip.

The solutions of a positioning device for a clamp known from the prior art have in common that the positioning device is produced with relatively great expenditure in terms of material, since the known solutions are multi-part and/or extend over a large part of the circumference of the clamp in question.

Disclosure of Invention

The object forming the basis of the invention is to provide a positioning device which can be reliably pre-positioned on a hose end by means of a spring clip, wherein the positioning device can be produced with minimal expenditure on material and production. The locating means does not damage any corrosion protection coating of the spring clamp.

The object is achieved according to the characterizing part of claim 1, characterized in that a positioning device for a spring clip is provided, in which a connecting plate is formed in the support band between the contact region and the positioner, which connecting plate is oriented radially inwards with respect to the spring clip, and in which region of the positioner the support band has at least two regions, wherein the first region adjoins the connecting plate in an axial direction away from the clip band, and the second region adjoins the first region substantially perpendicularly.

This has the advantage that the detent means of the detent device performs two functions, namely the securing of the spring clip on the hose end by means of the securing device and the orientation of the spring clip in the axial direction on the hose end by means of the perpendicular second region. It is therefore advantageously possible to configure the positioning device as a support band which is narrower in the circumferential direction, since all elements of the positioning device can preferably be arranged one after the other in the axial direction along the support band. Furthermore, a positioning device can be combined with spring clips of different nominal diameters. Depending on the nominal diameter of the spring clip, the positioning device then rests with its entire surface or at least a part of its surface on the outside of the clip band. In any case, there is no or only a slight pressure on a coating on said outer side of the entrainment.

It is therefore particularly advantageous if the support band has a smaller extent in a circumferential direction of the spring clamp than in the axial direction. In this way, the support belt can be produced in a material-saving manner. In particular, the support band can be produced by stamping and/or moulding (form-moulding) a strip. The support strip is preferably made of metal, particularly preferably of corrosion-resistant metal. The corrosion resistance can preferably be derived from the material properties of the metal and can preferably be achieved by coating the metal. The provision of a positioning device made of metal results in the advantage that the support band can be easily produced by stamping and/or shaping. In addition, the provision of a corrosion-resistant metal has the advantage that the spring clamp with the positioning device can also be used in corrosive environments.

Preferably, said connecting plate is dimensioned such that said retainer and said retainer are axially external to said spring clip. This is particularly advantageous for further development of the positioning device, since these elements serve to fix the positioning device on the spring clamp and to fix the spring clamp with the positioning device on the hose end. The position of the connecting plate and the retainer outside the clamping band is advantageous in that the connecting plate and the retainer thus extend from the outside in the axial direction to around the clamping band, and thus the positioning means are provided on the clamping band without the connecting plate and the retainer being located between the hose end and the inner side of the clamping band. This is advantageous because the pressing force entrained on the hose end is particularly uniform. The uniform pressing force increases the reliability and thus the tightness of the connection, since no region of the hose end and/or of the spring clip is particularly stressed and can therefore fail under mechanical stress.

It is preferably provided that the connecting plate is placed laterally on the clamping band. This has the advantage that the positioning device is clamped to the clamping band by the connecting plate. Furthermore, due to the contact of the connecting plate, the positioning device is prevented from twisting against the axial direction of the spring clip in a particularly advantageous manner. The contact of the web with the clip band ensures that the support band and the clip band are always substantially perpendicular to each other.

A further preferred refinement provides that at least one notch is provided in the region of the connecting plate, wherein, as a result of the notch, a clip can be bent away from the support band in the direction of the clamping strap. By bending a portion of a slot of the support band forming the connection plate, wherein the notch is formed in the area of the connection plate in such a way that the positioning unit can be reliably arranged on the support band, ensuring that it is not lost. Especially when the clips are curved in a direction towards the clip band and extend around the clip band in the radial direction. The recess is preferably in the form of a punched area which is located in the connecting plate and extends in an inverted U-shape from the side of the connecting plate adjoining the contact area of the support band.

It is further particularly advantageous if the clip engages at least partially around the entrainment band in the radial direction. The partial engagement of the clip around the clip band in the radial direction gives rise to the advantage of increasing the security of the positioning device against loss from the clip band.

A preferred refinement provides that the contact region has a curvature in a circumferential direction of the spring clip. Preferably, said curvature in said contact region substantially corresponds to said curvature of said entrainment on the outside thereof. Particularly preferably, the bending radius of the support band on its inner side corresponds to the bending radius of the outer side of the clamping band with respect to the spring clip. This results in the advantage that the entire surface of the support strip is located on the clamping strip. Due to the entire surface contact, the fixing and holding forces which are produced on the one hand by the securing device being fixed to the hose end and on the other hand by the spring clip being clamped to the hose are absorbed uniformly and ideally distributed over the securing device.

It is preferably provided that the positioner has a third region along the support band that has a smaller extent than the first region of the positioner. The fact that the third region has a shorter extent than the first region yields the advantage that the third region and the fastening device cannot project into the inner region of the spring clamp in the axial direction. For example, the third region of the retainer thus does not impair the grip of the hose on a fitting.

A particularly advantageous development provides that the third region of the detent mechanism encloses an obtuse or right angle with the second region of the detent mechanism on an inner side of the support strap. This results in the advantage that the hose end is surrounded by the retainer in the other direction. Thus providing a secure positioning and/or fixing of the spring clip on a hose.

A preferred development provides that the third region of the retainer can be bent around a hose end of a hose, and that the second region of the retainer in turn rests on the hose end of the hose in the axial direction. Because of this particularly advantageous development, the retainer engages completely around the hose end.

It is preferably provided that the fixing means are arranged in the end region of the support band opposite the holder. Due to this arrangement, the positioning device with the positioner is advantageously arranged in the end region of the hose. The locator may then be arranged such that it engages at least partially around the hose end in order to locate the spring clip on the hose end. Only the retainer is provided on the other side of the positioning device in the axial direction, the retainer being used for connecting the positioning device to the entrainment band. Thus, the retainer does not involve positioning the spring clip at the hose end. The spring clip can therefore be provided and ultimately also positioned particularly easily on the hose end.

It is preferably provided that the retainer at least partially surrounds the entrainment engagement of the spring clip in a radial direction relative to the spring clip. This results in the advantage that, in the uninstalled state of the spring clip, the security of the positioning device against loss from the clip strap is increased. In the mounted state of the spring clip, the fixing force and the retaining force resulting from the fixing on the hose end on the one hand by the positioning means and the clamping on the hose by the spring clip are absorbed by the partial engagement of the retainer surrounding the clip strap in the radial direction.

Particularly preferably, the retainer has at least one retaining tab which assumes the shape of the support band. By providing at least one retaining tab which assumes the shape of the entrainment, material can be saved. Two retaining tabs are preferably provided. This has the advantage that the positioning device is given a torsion resistance against the spring clip by the retaining strip.

Drawings

Other features, details and advantages of the invention will become apparent from the wording of the claims and from the following description of exemplary embodiments with reference to the accompanying drawings, in which:

figure 1 is a perspective view of a spring clip with a detent,

figure 2 is a schematic top view of the positioning device,

FIG. 3 is a schematic diagram of a side view of the positioning device, and

figure 4 is a schematic view of a section in axial direction through the positioning device along the plane S-S',

fig. 5 is a schematic perspective detail view of an alternative form of fixing means of the positioning device.

Detailed Description

All elements described hereinafter are in each case associated with all drawings, wherein reference signs for designating the elements are used consistently in all drawings. Fig. 1 shows an assembly of a spring clamp 1 with a clamping strap 2 and a positioning device 3. Fig. 2 to 4 show different views of the positioning device 3.

The positioning device 3 has a positioner 4 on one side of the spring clamp 1 and a positioner 5 on the other side in an axial direction a of the spring clamp 1. The positioning device 3 is arranged on an outer side 6 of the clamping strap 2 of the spring clamp 1 and is formed by the support strap 7. The positioning device 3 has a contact area 8 in the portion of the support band 7 that abuts against the outer side 6 of the clamping band 2 of the spring clamp.

The support bands 7 extend in an axial direction a relative to the spring clamp 1. The support band 7 is described below, starting from one end in the axial direction a. A holder 5 is provided at one end of the support belt 7. The holder 5 is followed by the contact area 8. The support band 7 also has a connecting plate 9 when viewed in the axial direction a. The connecting plate 9 is followed by the retainer 4, the retainer 4 extending to the end of the support band opposite the retainer 5. The retainer 4 has a first region 10 adjacent the web 9. Along the support band 7, as part of the positioner 4, there is then a second region 11 and a third region 12. A fixing means 13 is further located at said end of said retainer 4 and thus at said end of said support bands 7 opposite said retainer 5.

The contact region 8 has a curvature in a circumferential direction U of the spring clamp 1, which substantially corresponds to a curvature of the outer side 6 of the spring clamp 1 in the circumferential direction U. Furthermore, the holder 5 also has a curvature in the circumferential direction. Said curvature corresponds to said curvature of said contact area 8. The connection plate 9 likewise has the curvature of the contact region 8 on the side of the connection plate 9 adjoining the contact region 8. The connecting plate 9 has no curvature on the side of the connecting plate 9 adjoining the retainer 4. The retainer 4 has no curvature in the circumferential direction U of the spring clamp 1.

On the side of the clamping strap 2 of the spring clamp 1, between the contact region 8 and the retainer 4, the positioning device 3 opposite the holder 5 has a connecting plate 9. With respect to the spring clamp 1, the web 9 extends in a radial direction R inwardly from the contact region 8 of the positioning device 3. The contact region 8 and the web 9 thus enclose an obtuse or right angle on their radial inside. The connecting plate 9 is located outside the spring clamp 1 in the axial direction a. In the radial direction R, the web 9 extends inwardly with respect to the spring clamp 1.

The positioning device 3 also has a first region 10 directly adjoining the web 9. The first region 10 is oriented substantially parallel to the contact region 8 and is located outside the spring clamp 1 in the axial direction a. Thus, the first region 10 is disposed more inwardly than the contact region 8 of the positioning device 3 with respect to the spring clamp 1, when viewed in the radial direction R.

The first region 10 of the fixture 4 is followed by a second region 11 of the fixture 4, the second region 11 being substantially perpendicular to the first region 10. The second region 11 extends inwardly in the radial direction R with respect to the spring clip.

The second region 11 of the fixture 4 is followed by a third region 12 of the fixture 4. The second region 11 and the third region 12 of the detent mechanism 4 enclose an obtuse or right angle on their sides facing the spring clamp 1. The third region 12 of the retainer 4 is arranged outside the spring clamp 1 with respect to the axial direction a of the spring clamp 1. In addition, the third region 12 of the positioner 4 has a shorter extent along the support band 7 than the first region 10 of the positioner 4.

Said third area 12 of said retainer 4 is followed by a fixing means 13 being part of the retainer. The fixture 13 has at least one tip 14. The fixing means 13 are substantially perpendicular to the third region 12 of the positioner 4. The fixing means 13 are located outside the spring clamp 1 in the axial direction a with respect to the spring clamp 1 and at the ends of the support bands 7 opposite the retainer 5 when viewed in an axial direction a.

In the radial direction R with respect to the spring clamp 1, the web 9 extends sufficiently far inward from the contact region 8 that the inner side 16 of the clamping strap 2 of the spring clamp 1 is approximately at the same height as the radially inward flank of the support strap 7 in the first region 10 of the retainer 4.

The extent of the second region 11 of the retainer 4 inwardly, also with respect to the radial direction R of the spring clamp 1, corresponds approximately to the wall thickness of the side surface of the hose in the region of the hose end.

The third area 12 of the fixture 4 may be bent outwards in the radial direction R about a line of contact with the second area 11, such that the third area 12 of the fixture 4 and the first area 10 of the fixture 4 may be brought into a position relative to each other, wherein the first area 10 of the fixture 4 and the third area 12 of the fixture 4 are parallel to each other. The at least one tip 14 of the fixing means 13 of the fixture 4 extends along the support band 7 for a length that is less than or equal to the extent of the second area 11 of the fixture 4.

By bending the third portion 12 of the retainer 4 in the radial direction R, seen outwards with respect to the spring clamp 1, the at least one tip 14 has a form which can be introduced into a wall of a hose. In the case of a tip 14 introduced into a hose wall, the angle enclosed between the inner side of the second region 11 and the inner side of the third region 12 is a right angle.

The fixing means 13 preferably has two tips 14, each having an acute angle at the end of the support bands 7 opposite the holder 5. Perpendicular to the axial direction a, the support bands 7 have a radius between the tips 14 of the fixing means 13. The angle enclosed between the fixing means 13 and the third area 12 is an acute or a straight angle.

The sum of the angle enclosed between the second region 11 and the third region 12 and the angle enclosed between the third region 12 and the fixing device 13 is preferably 180 °.

The second region 11 of the retainer 4 can then be provided with the hose so that the second region 11 rests axially on a hose end in said region of the hose wall. The extent of the second region 11 preferably corresponds to the wall thickness of the hose.

The holder 5 has at least one, in particular two, retaining tabs 15. Each retaining tab 15, seen in the circumferential direction U of the spring clamp 1, may be arranged in the outer region of the support band 7 and may directly abut the contact region 8 of the positioning device 3.

Each retaining tab 15 is substantially perpendicular to the contact area 8 of the positioning device 3, said area 8 extending in the radial direction R on the clamping band 2 of the spring clamp 1. Each retaining tab is preferably engaged around the clamping band 2 of the spring clip.

The connection plate 9 preferably has a partial recess 17, which partial recess 17 extends in an inverted U-shape from the contact area. The clip 18 released by the notch 17 is inclined in the axial direction a from the web 9 of the retainer 4 towards the clip strip 2. The clip 18 rests on the clip band and extends in the radial direction. The clip 18 preferably engages around the clip band and extends to the inner side of the clip band of the spring clip. The recess 17 is preferably in the form of a punched area in the connecting plate 9.

The support belt 7 comprises all areas of the positioning device 3, i.e. the holder 5, the contact area 8 and the positioner 4. By stamping and shaping, the positioning device 3 can be produced integrally and from a metal strip forming the support band 7.

In an alternative form according to fig. 5, the fixing means 13 are attached to the third region 12 transversely in the circumferential direction U. The tips 14, which are arranged substantially perpendicular to said third area 12, are here preferably located on each side in said circumferential direction. The tip 14 is here preferably in the form of a tab. Alternatively, a portion of the tip 14 opposite the third region 12 (not shown) has an acute angle.

The invention is not limited to one of the above-described embodiments but can be modified in many different ways. For example, the positioning means may also be in the form of clamps, possibly in combination with different spring clips.

All features and advantages which are evident from the description and drawings, including structural details, spatial arrangements and method steps, are essential to the invention, both individually and in various combinations.

List of reference numerals

1 spring clip

2 clamp belt

3 positioning device

4 locator

5 holder

6 outside of the clip band

7 support belt

8 contact zone

9 connecting plate

10 first area of the locator

11 second area of the locator

13 third area of the retainer

14 tip

15 holding sheet

16 inner side of the clip band

17 recess

18 clamping piece

Axial direction A

R radial direction

In the U circumferential direction