阅读说明：本技术 封闭装置 (Closure device ) 是由 M·布达里克 M·格伦泽 于 2020-03-31 设计创作，主要内容包括：用于封闭壳体开口、尤其是电动的门驱动器壳体的封闭装置,所述封闭装置包括：框架,所述框架限定框架开口并且所述框架构造用于插入到要封闭的壳体开口中并且尤其是在没有附加的辅助机构的情况下固定在壳体上；以及与所述框架可松脱地连接或能连接的盖,框架开口能通过所述盖与框架配合作用地封闭。(Closure device for closing a housing opening, in particular a motor-driven door drive housing, comprising: a frame which defines a frame opening and is designed for insertion into the housing opening to be closed and is fastened to the housing, in particular without additional auxiliary means; and a cover which is detachably or connectable to the frame, the frame opening being closable in cooperation with the frame by the cover.)

1. Closure device for closing a housing opening (10), in particular a motor-driven door drive housing, comprising:

a frame (18) which defines a frame opening (22) and which is designed for insertion into the housing opening to be closed and for fastening to the housing, in particular without additional auxiliary means, and

a cover (20) which is or can be detachably connected to the frame (18), wherein the frame opening (22) can be closed by the cover in a manner of cooperating with the frame (18).

2. A closure device according to claim 1, characterized in that the frame (18) can be clipped into the housing opening (10) to be closed by means of a clip connection.

3. The closure device as claimed in claim 2, characterized in that the frame (18) has, for the purpose of the snap connection, elastic projections (24) and stops (26) which are designed to receive an edge (28) of the housing opening (10) between them in a form-fitting and/or force-fitting manner at least in sections in the snapped-in state of the frame (18).

4. A closure device according to claim 3, wherein the protrusion (24) has an outer surface (30) for an edge (28) of the housing opening (10) to impinge on the outer surface (30) when the frame (18) is clipped into the housing opening (10).

5. The closure device as claimed in at least one of the preceding claims, characterized in that the frame opening (22) is closed liquid-tight or gas-tight in the closed state of the closure device by means of a cover (20).

6. The closure device as claimed in at least one of the preceding claims, characterized in that the cover (20) defines a closure face (64) by means of which the frame opening (22) can be closed, so that the closure face (64) and the frame (18) are oriented flush with one another in the closed state.

7. The closure device as claimed in at least one of the preceding claims, characterized in that the cover (20) has at least one guide element (56) which is configured for being guided by a counter-guide element (58) configured on the frame (18) when closing the frame opening (22).

8. The closure device as claimed in at least one of the preceding claims, characterized in that the cover (20) has a flange (68) which surrounds at least in sections and which extends outward and which, in the closed state of the closure device, is supported on the frame (18).

9. The closure device as claimed in claim 8, characterized in that the frame (18) has a chamfered section (66) pointing towards the frame opening (22), on which the flange (68) of the cover (20) is supported, in particular positively supported, in the closed state of the closure device with a side face (70) configured complementarily to the chamfered section (66).

10. The closure device as claimed in at least one of the preceding claims, characterized in that the frame opening (22) can be closed by means of a cover (20) by means of a snap-on connection.

11. The closure device as claimed in claim 10, characterized in that the cover (20) has a flexible latching mechanism (32) for the latching connection between the cover (20) and the frame (18), which latching mechanism engages behind a projection (34) formed on the frame (18) and projecting into the frame opening (22) in the latched-in state of the cover (20).

12. The closure device as claimed in claim 11, characterized in that the latching mechanism (32) has an actuating mechanism (50), in particular for a tool, by means of which the latching connection between the cover (20) and the frame (18) can be released, preferably only.

13. A closure device according to claim 12, wherein the latch mechanism (32) and the actuating mechanism (50) are arranged sunk in the cover and the cover (20) has an access opening (54) for the actuating mechanism (50).

14. The closure device as claimed in at least one of claims 11 to 13, characterized in that the cover (20) has a flap section (36) and a base section (38), and the latching mechanism (32) is configured between the flap section (36) and the base section (38).

15. A closure device according to claim 14, wherein the latch mechanism (32) is a retaining ring (44) which is accommodated between the flap section (36) and the base section (38) of the cover (20).

16. A closure device according to claim 14 or 15, wherein the flap section (36) and the base section (38) are clipped to each other to form a lid (20).

17. Housing (12), in particular a door drive housing, having a housing opening (10) and a closure device according to at least one of the preceding claims.

Technical Field

The invention relates to a closure device for closing a housing opening, in particular a motor-driven door drive housing.

Background

Such closure devices are known in principle and are used, for example, for closing an opening of a housing, in particular of a door drive housing. Furthermore, at the same time, access to components, in particular electronic components, located inside the housing should be maintained. For example, it may be desirable to: cables are connected within the housing interior, the controller is programmed, and/or drive priorities are adjusted. For this purpose, the closure device is designed such that it can be opened.

However, in order to render the closure impermeable to objects, for example dust or dirt particles and/or moisture, complex constructional measures are often required, as a result of which it is difficult to handle and/or open the closure.

Disclosure of Invention

The object of the invention is therefore to provide a closure device which can be easily assembled and which can be easily handled and at the same time has good closure properties.

In order to achieve this object, a closure device having the features of claim 1 is specified.

The closure device according to the invention comprises: a frame which defines a frame opening and is designed for insertion into the housing opening to be closed and is fastened to the housing, in particular without additional auxiliary means; and a cover which is detachably or connectable to the frame, wherein the frame opening can be closed by the cover in a manner of cooperating with the frame.

The invention is based on the idea that the closure device can be connected to the housing in a simple manner in a tensile and pressure-resistant manner by virtue of its own frame, which can be inserted into the housing opening to be closed and is fixedly anchored there. Subsequently, the frame opening of the frame can be closed by means of the cover, whereby the housing opening is closed in a generally sealed manner. The following possibilities also exist: the cover is released again from the frame, which is held in the housing opening, in order to thereby gain access to the housing interior. In other words, the cover is reversibly releasably connected to the frame.

The housing opening can therefore be closed particularly well by means of the closing device.

In principle, any housing opening can therefore be reliably closed in a simple manner, for example centrally, at the ends or at the end faces, without further components in addition to the frame and the cover.

Advantageous embodiments of the invention can be derived from the dependent claims, the description and the drawings.

In order to anchor the frame in the housing opening in a particularly simple manner, the frame can have a clip connection by means of which the frame can be clipped into the housing opening to be closed.

In order to achieve a clipped connection between the frame and the housing opening, the frame can have elastic projections and stops which are designed to receive the edge of the housing opening between the projections and the stops in a form-fitting and/or force-fitting manner in the clipped state of the frame at least in sections. The frame is thereby securely and fixedly anchored in the housing opening without additional auxiliary means. In particular, the frame can be anchored in the housing opening in a tension-resistant and pressure-resistant manner without screws or the like, so that the frame cannot be undesirably loosened.

In order to enable the frame to be clipped into the housing opening particularly easily, the projection of the frame can have an outer surface for the edge of the housing opening to impinge on when the frame is clipped into the housing opening.

When the frame is clipped into the housing opening, the outer surface of the projection impinges on the edge delimiting the housing opening, wherein the elastic projection is then deflected in the direction of the center of the frame opening. The frame can thus be clipped into the housing opening with only a low expenditure of force.

If the frame is completely clipped into the housing opening, the elastic tab springs back into its starting position and the frame is fixedly anchored in the housing opening. In the clipped state of the frame, the projection engages behind an edge of the housing opening, so that the frame is reliably anchored in the housing opening by means of the projection and the stop.

Alternatively, the projection can also be designed as a ramp, in particular as an elastic ramp, on which the edge of the housing opening impinges during the clamping.

Preferably, the frame opening is closed in the closed state of the closure device in a liquid-tight or gas-tight manner by the cover.

In this case, a seal, in particular a sealing ring, can be provided between the frame and the cover, depending on the desired degree of sealing. The seal may be made of an elastic material, for example rubber or silicone, so that in the closed state of the closure device no gap or at least no significant gap is present between the frame and the cover.

In order to close the housing opening as flat as possible in the closed state of the closure device, the cover can define a closing surface which closes flush with the frame in the closed state.

In order to be able to introduce the cover into the frame particularly easily for closing the frame opening, the cover can have at least one guide element which is designed to be guided by a counter-guide element formed on the frame when closing the frame opening. Preferably, the guide elements formed on the cover are formed in the form of guide tabs, which can interact with opposing guide elements of the frame, which are designed as guide grooves. In principle, however, the guide element can also be a guide groove and the counter-guide element a guide tab.

If the guide element formed on the lid is a guide tab, this guide tab can extend out from the side of the lid facing away from the closing surface.

The frame opening can be closed in a particularly sealed manner if the cover has a flange which surrounds at least some sections and extends outward and which, in the closed state of the closure device, bears against the frame. In particular, the flange can be supported on an opposing surface of the frame, which is configured complementarily to the flange, in the closed state of the closure device. Furthermore, in order to improve the degree of sealing between the flange and the frame, a seal made of an elastic material (e.g. rubber or silicone) may be provided. In particular, the seal can be formed on the flange and/or the frame. Alternatively, the flange and/or frame may be coated with a sealant, for example made of rubber or silicone. In this case, seals with a higher degree of sealing are used for gas-tight and/or moisture-tight seals than for example seals that seal against dust and/or particles.

Preferably, the frame can have a chamfered section pointing toward the frame opening, on which the flange of the cover is supported, in particular positively supported, in the closed state of the device with a side face configured complementarily to the chamfered section. In other words, the frame is funnel-shaped in its chamfered section. The chamfered sections form the facing surfaces of the flanges, which have corresponding inclined surfaces. In principle, however, it is also conceivable for the flange of the cover and the frame to be of stepped design.

For particularly easy handling of the closure device, the frame opening can be closed by the lid by means of a snap-in connection. For this purpose, the cover can have a flexible latching mechanism for the latching connection between the cover and the frame, which latching mechanism engages behind a projection formed on the frame and projecting into the frame opening in the latched state of the cover. Alternatively, the flexible latching mechanism can also be formed on a frame which engages behind a projection formed on the cover in the latched-in state of the cover.

In order to be able to release the latching connection between the cover and the frame again, the latching mechanism can have an actuating mechanism, in particular an actuating mechanism for a tool, by means of which preferably only the latching connection between the cover and the frame can be released. By means of the single releasable property of the tool, it is possible to comply with the corresponding standard specification, for example DIN-EN 60529. Preferably, the latching mechanism and the actuating mechanism are arranged in a recessed manner in the cover and the cover has an access opening for the actuating mechanism for releasing the latching connection, through which the latching connection can be released by means of the actuating mechanism.

According to an advantageous embodiment, the cover can have a flap section and a base section, wherein the latching mechanism is formed between the flap section and the base section. In this case, the latching mechanism can basically be formed on the flap section and/or on the base section. However, it is advantageous from a manufacturing standpoint that at least the baffle section and the base section are separate components. The baffle section and the base section can be produced by injection molding with a simpler injection mold than if they were constructed in one piece. The cover can be realized in a particularly simple and cost-effective manner in that the flap section and the base section are clipped onto one another to form the cover. Advantageously, the flap section, the base section and the latching mechanism are separate components.

If the latching mechanism is a separate component with respect to the flap section and the base section, the latching mechanism can be configured in the form of a securing ring which is accommodated between the flap section and the base section of the cover.

The securing ring is preferably a slotted ring also known as a snap ring. Such a slotted ring has two ends, which each surround a slot of the slotted ring and can be pressed in the direction of the slot counter to the spring force, wherein the circumference of the ring is reduced.

Squeezing the ring serves to clip the cover into the frame opening and to release the snap-lock connection. In order to release the latching connection, the ring can have an actuating mechanism for a tool at its end facing the slot. The actuating means can be designed, for example, in the form of a bore formed in the respective end, so that the ring can be pressed by means of a snap ring clamp. Alternatively, a projection may also project outwardly on the end of the ring surrounding the notch, so that the ring can be manually pressed.

As already mentioned, the circumference of the slotted ring decreases when pressed around the end of the slot. The circumference of the ring is reduced in such a way that it no longer engages behind the counter-bearing of the latching connection, which is formed on the frame, and the cover can be removed from the frame, as a result of which access to the interior of the housing can be achieved.

The invention further relates to a housing, in particular a door drive housing, having a housing opening and a closure device.

Although the invention is described in connection with a door actuator housing, the invention may also be used in connection with other housing types.

Drawings

The invention is described below, by way of example only, with reference to the figures of the accompanying drawings by way of possible embodiments.

In the figure:

fig. 1 shows an exploded illustration of a closure device with a cover and a frame and a perspective view of a housing with a housing opening to be closed;

fig. 2 shows a perspective view of the housing of fig. 1 with an inserted frame of the closure of fig. 1 in an open state of the closure;

FIG. 3 shows a perspective view of the housing of FIG. 2 with the closure closed;

FIG. 4 shows a side cross-sectional view of FIG. 3; and

fig. 5 shows an exploded view of the lid of the closure of fig. 1.

Detailed Description

Fig. 1 to 4 show various views of a closure device for closing a housing opening 10 of a housing 12, which in the exemplary embodiment shown is an electric door drive housing. The housing opening 10 is necessary in order to enable access to the interior of the housing 12, for example in order to provide a splice 14 for a cable 16 in the interior of the housing 12.

The closure device comprises a frame 18 and a cover 20, which is shown in detail in fig. 5 and whose structure is explained in more detail below.

The frame 18 defines a frame opening 22 and is configured for insertion into the housing opening 10 to be closed. In this case, the frame 18 can be clipped particularly easily without additional auxiliary means in the frame opening 22 by means of a clip connection into the housing opening 10 to be closed. For this purpose, the frame 18 has elastic projections 24 and stops 26 on its outer circumference, which are designed to receive an edge 28 of the housing opening 10 in the clamped state of the frame 18 between them in a form-locking and/or force-locking manner (fig. 4). The projection 24 and the stop 26 are arranged on the outside of the frame 18 facing the edge 28 of the housing opening 10.

In the embodiment shown, the frame 18 comprises in particular four projections 24 and a stop 26 which completely surrounds the frame 18. In principle, if the stop 26 is interrupted, it is sufficient for the frame 18 to be fixedly fitted in the housing opening 10, since only the edge 28 of the housing opening 10 has to be accommodated between the stop 26 and the respective projection 24. However, the sealing effect can be significantly increased if the stop 26 is formed completely around, i.e. continuously.

Each of the projections 24 may be elastically configured so that the frame 18 can be easily clipped into the housing opening 10 to be closed. Furthermore, each of the projections 24 has an outer surface 30 along which the edge 28 of the housing opening 10 strikes when the frame 18 is clipped on.

The frame opening 22 can be closed in cooperation with the cover 20. In the exemplary embodiment shown, the frame opening 22 can be closed by means of the cover 20 by means of a snap-lock connection between the frame 18 and the cover 20. For this purpose, the cover 20 has a flexible latching mechanism 32, which engages behind a projection 34 formed on the frame 18 and projecting into the frame opening 22 in the closed state of the housing opening 10 or in the locked state of the cover 20 (fig. 4). In the present embodiment, two opposing projections 34 are provided on the frame 18.

The structure of the cover 20 will now be explained in more detail with reference to fig. 4 and 5. The cover 20 comprises a flap section 36 which, in the closed state of the closure device, is directed away from the housing opening 10 and thus forms part of the outer side of the housing 12. Furthermore, the cover 20 comprises a base section 38 which, in the closed state of the closure device, projects into the housing opening 10.

The flap section 36 and the base section 38 snap into one another to form the cover 20. For this purpose, the base section 38 has four clip-on hooks 40, which are arranged in each case on a corner region of the base section 38. In the clipped state of the cover 20, the clip-on hooks 40 each engage behind a clip-on counter support 42 provided on the flap section 36. The latching hooks 40 can also be formed on the cover portion 36 and the corresponding latching counter-supports 42 can be formed on the base portion 38. Furthermore, the number of bayonet hooks 40 and bayonet counter-supports 42 may differ from four, i.e. more or less than four bayonet hooks 40 and bayonet counter-supports 42 may be provided. Furthermore, it is not absolutely necessary for the bayonet hooks 40 and the bayonet counter-supports 42 to be arranged in the corner regions. Rather, it is also possible for the latching hooks 40 and latching counterbearings 42 to be arranged between the corner regions, in particular centrally between the corner regions.

A latching mechanism 32 is formed between the flap section 36 and the base section 38. In the present exemplary embodiment, the latching mechanism 32 is embodied in the form of a securing ring 44, which is accommodated between the flap portion 36 and the base portion 38.

As can be seen in particular from fig. 5, the fastening ring 44 is a slotted ring with notches 46, which are correspondingly surrounded by the ends 48 of the slotted ring 4. The fixing ring 44 can be compressed to some extent by this structure, whereby the circumference of the fixing ring is reduced.

If the cover 20 is clipped into the frame 18, the projections 34 of the frame 18 projecting into the frame openings 22 cause the securing ring 44 to be pressed against its spring force. The fastening ring 44 is inserted into a recess provided on the cover 20, which is formed between the flap portion 36 and the base portion 38. If the cover 20 is snapped into the frame opening 22 such that the securing ring 44 passes over the projection 24 of the frame 18, the securing ring 44 springs back again into its original shape due to its spring force and engages behind the projection 34. Thus, the frame opening 22 is closed. If the frame 18 is clipped into the housing opening 10 of the housing 12, the housing opening 10 is also closed.

In order to be able to open the frame opening 22 again, the securing ring 44 has an actuating means 50, which is formed in the form of a bore 52 on the respective end 48. A pin of a not shown snap ring clamp can be inserted into each hole 52, so that the circumference of the fastening ring 44 can be reduced by means of the snap ring clamp, as a result of which the fastening ring 44 no longer engages behind the projection 34 of the frame 18 and releases the snap-in connection between the frame 18 and the cover 20. The cover 20 may then be removed from the frame 18 to gain access to the interior of the housing 12.

In order to release the latching connection between the frame 18 and the cover 20 by means of the snap-ring pliers by pressing the securing ring 44, the cover 20 has an access opening 54 for the snap-ring pliers. Furthermore, the fastening ring 44 together with the actuating means 50 are not accessible from the outside, so that the housing closure can comply with the IP class 42 to DIN EN 60529.

In order to facilitate the clipping of the cover 20 into the frame 18 or in order to correctly orient the cover 20 relative to the frame 18, the cover 20 has at least one guide element 56 which is designed to be guided by a counter-guide element 58 formed on the frame 18 when the frame opening 22 is closed.

In this exemplary embodiment, the guide elements 56 are formed as four guide webs 60 on the base section 38 of the cover 20. The guide tabs 60 are arranged in the corner regions of the base section 38. The counter-guide elements 58 are constructed in the form of four guide grooves 62 which are provided on the frame 18 on the side of the frame opening 22.

As can be seen from fig. 5, the guide tabs 60 also extend outward from the cover portion 36 on the side of the base portion 38 facing away from the clip-on hooks 40. In other words, in the closed state of the closure device, the guide tab 60 extends in the direction of the frame 18.

The lid 20 defines a closure face 64. The frame opening 22 can be closed by the closing surface 64 in such a way that the closing surface 64 of the frame 20 and the frame 18 are aligned flush with one another in the closed state of the closure device (fig. 4).

As can be seen from the closed state of the closure device shown in fig. 4, the frame 18 has a chamfered section 66 pointing toward the frame opening 22, on which a flange 68 formed on the cover 20 is supported in a form-fitting manner with a side 70 formed complementary to the chamfered section 66. In other words, the frame 18 is designed in a funnel-like manner, wherein the cover 20 is pressed or pulled into the frame opening 22 in a fixed manner as a result of the snap-in connection with the frame 18, whereby the frame opening 22 is closed in a particularly sealed manner. Furthermore, the funnel-shaped design of the frame 18 enables the cover 20 to be self-centered relative to the frame 18 and to be placed on the frame 18 with a precise fit.

In order to improve the sealing between the frame 18 and the cover 20, a sealing mechanism may be provided. In particular, a sealing coating, for example made of rubber or silicone, can be provided on the frame 68 of the cover 20 and/or on the chamfered section 66 of the frame 18.

It is thereby achieved that the frame opening 22 is sealed in the closed state of the closure device (fig. 3 and 4) in a sealing manner, in particular in a liquid-tight or gas-tight manner, by the cover 20.

List of reference numerals

10 housing opening

12 casing

14 joint

16 cable

18 frame

20 cover

22 frame opening

24 projection

26 stop part

28 edge

30 outer surface of the container

32 latch mechanism

34 projection

36 baffle segment

38 base section

40 inserting and clamping type hook

42 insertion-clamping type opposite support piece

44 fixed ring

46 notch

48 end part

49 notch

50 action mechanism

52 holes

54 access opening

56 guide element

58 opposite guide elements

60 guide tab

62 guide groove

64 closed surface

66 chamfered section

68 flange

70 side surface.