WO2021115858A1

WO2021115858A1 - Device for detachably fastening a drawer front to a side panel, and drawer

Info

Publication number: WO2021115858A1
Application number: PCT/EP2020/084197
Authority: WO
Inventors: Waldemar PETKER
Original assignee: Paul Hettich Gmbh & Co. Kg
Priority date: 2019-12-09
Filing date: 2020-12-02
Publication date: 2021-06-17
Also published as: AT526256B1; DE102019133605A1; AT526256A5; CN114786535A

Abstract

The invention relates to a device (4) for detachably fastening a drawer front (3) to a side panel (2) of a drawer (1) comprises a retaining extension (5) and a housing (6), in which a least one movable clamping body (10) is arranged, an insertion opening (9) for the insertion of the retaining extension (5) into the housing (6) in an insertion direction being provided on the housing (6), at least one support wall (12, 13) oriented at an angle to the insertion direction being provided on the housing (6), and the retaining extension (5) being secured against extraction opposite the insertion direction by means of the at least one clamping body (10) lying against the support wall (12, 13). The invention further relates to a drawer having a device of this type.

Description

Device for the detachable fixation of a front panel on a side frame and drawer

The present invention relates to a device for releasably fixing a front panel on a side frame of a drawer, with a folding web and a housing in which at least one movable clamping body is arranged, with an insertion opening on the housing for inserting the Hal testeges in an insertion direction Housing is provided and a drawer.

DE 102015 122 192 A1 discloses a device for releasably fixing a front panel on a side frame of a drawer, in which two bolts can be locked in front of a holder. To unlock a counter-bearing to support the flalter is moved so that the front panel can be lowered and then removed again. Such a device has proven itself, but numerous components are used, and the required space volume is comparatively large.

DE 202010007430 U1 discloses a device with an attachment device for releasably connecting a front panel to a side wall of a drawer. The attachment device has movable fold sections which can be inserted into engagement contours for fixation. If there is play between the fold sections and the engagement contours, rattling noises can occur. In addition, many components are also required for this structure, and despite the large installation volume, the folding forces are limited.

It is therefore the object of the present invention to create a device for releasably fixing a front panel on a side frame of a drawer, which device provides high folding forces with a compact design.

This object is achieved with a device with the features of claim 1.

In the device according to the invention, at least one movable clamping body is arranged in a housing, which serves to fix a foldable web insertable in an insertion direction, with at least one support wall oriented at an angle to the insertion direction being provided on the housing is, and the retaining web abut the at least one on the support wall, the clamping body is secured against being pulled out against the insertion direction. As a result, the holding web can be inserted into the housing and continuously fixed to the housing by the holding web is secured against pulling out by clamping forces. Preferably, the holding web is held in a self-locking manner on the at least one clamping body.

For a stable fixation of the holding web in the housing, the holding web is arranged between at least two clamping bodies, which each bear against a supporting wall. Even if it is sufficient to fix the holding web only on one side a clamping body and an inclined support wall, the provision of clamping bodies on opposite sides of the holding web is advantageous because higher holding forces can be provided. Both support walls can be designed inclined to the insertion direction and spread open in the insertion direction, wherein the angle of the two support walls to the insertion direction can be selected to be the same size for a symmetrical arrangement. Alternatively, it is also possible to align only one support wall inclined to the insertion direction.

A cage can be held in the housing for positioning the at least one clamping body. Such a cage can be moved within the housing and holds the at least one clamping body, preferably a plurality of clamping bodies. The cage is preferably biased against the insertion direction by a spring and thus positioned exactly in the housing in a starting position. Via the cage, the clamping bodies can be moved together within the housing, for example for unlocking.

The cage can have at least two channels, preferably oriented perpendicular to the insertion direction, for receiving clamping bodies, in particular balls, which have an opening to an insertion channel for the retaining web. During assembly, the holding web is then introduced into the housing on the one hand and also into the insertion channel of the cage on the other hand, so that guidance of the holding web is provided during assembly. The holding web can then press the clamping bodies outwards against a support wall via the opening in the cage in order to be fixed in a clamping manner.

The inclination of the at least one support wall to the insertion direction is preferably in a range between 1 ° to 20 °, in particular between 2 ° to 8 °. The angle is preferably smaller than the permissible friction angle, which depends of the materials used for the retaining bar, the clamping body and the support wall.

The at least one clamping body can be designed as a ball, cylinder, barrel or with a different geometry. Balls are preferably used, which can exert high punctual forces on the retaining web.

The insertion opening on the housing can be slit-shaped or rectangular and the retaining web can be rectangular in cross section. Such a right-angled cross-section can provide protection against rotation, in particular if at least two clamping bodies are arranged perpendicular to the insertion direction on one side of the holding web. Alternatively, the opening can also be designed as a round opening. The retaining web would then be, for example, a round pin around which the balls are arranged in a circle.

In a further embodiment, the at least one supporting wall, in particular all supporting walls, is formed integrally with the housing. As a result, the device can be manufactured with only a few components. The housing can be made of plastic or metal, for example. Alternatively, the support walls can also be formed by components that are formed by the side frame or a housing.

The device preferably further comprises a release element, by means of which the clamping bodies can be moved to unlock the retaining web. The Löseele element can move the clamping body in the insertion direction in order to overcome the clamping of the retaining web. A pivotable lever and / or a movable slide can be used as the release element. Alternatively, the clamping body can also be released using a tool, for example using a screwdriver that is inserted into an opening in the housing.

In the case of the drawer, at least one side frame is connected to a front panel via a device according to the invention. For high front panels, at least two devices according to the invention can also be mounted between the front panel and the side frame.

For easy assembly, the at least one Hal testeg of the device and the housing can be set on or in the side frame on the front panel. As a result, the direction of insertion can easily be recognized by the fitter via the retaining bar. Alternatively, of course, the housing on the front panel and the retaining bar must be mounted on the side frame. In any case, there is a high degree of flexibility in the insertion direction, since the retaining web can be fixed to the at least one clamping body at different points. For example, the front panel can be fixed in a mounting area of more than 10 mm, in particular more than 15 mm, along the housing.

The device is preferably constructed in a particularly compact manner, the housing having a width of less than 15 mm, in particular less than 12 mm, and being able to be arranged in a hollow chamber of the side frame.

This means that the device can also be used for particularly narrow side frames. The width of the housing is thus slightly less than the width of the side frame.

The invention is explained in more detail below using an exemplary embodiment with reference to the accompanying drawings. Show it:

Figure 1 is a perspective view of a drawer in the area of a fixation of the front panel on a side frame;

FIG. 2 shows a detailed view of a device for releasably fixing a front panel on a side frame during assembly;

Figure 3 is a view of the device of Figure 2 in the assembled

Position;

FIG. 4 shows a view of the device of FIG. 3 during dismantling;

FIGS. 5 to 7 show several exploded views of the device for releasably fixing the front panel to the side frame.

A drawer 1 comprises two side frames 2 on which a plate-shaped front panel 3 is fixed. The drawer 1 can be movably mounted on a piece of furniture or a household appliance via pull-out guides. In order to fix the front panel 3 in a stable manner on the two side frames 2, several devices 4 are provided for releasably fixing the front panel 3. Each device 4 comprises a holding web 5 and a housing 6, the holding web 5 being at least partially inserted into the housing 6 in the mounted position. In the housing 6 there are also clamping bodies 10 for fixing the shark testeges 5 arranged. For the purpose of illustration, the clamping bodies 10 are shown in the upper device 4 without a cage 11 in the housing 6.

FIG. 2 shows the lower device 4 for releasably fixing the front panel 3 on the side frame 2 during assembly. The folded web 5 is fixed to an inside of the front panel 3 via a fastening strip 8 and has a protruding web section 7 which is oriented essentially perpendicular to the fastening strip 8.

The housing 6 has an interior space in which a plurality of clamping bodies 10 are arranged, for example balls made of a hard material, for example steel. The clamping bodies 10 are held on a cage 11 and are positioned over this. The housing 6 has two integrally formed support walls 12 and 13 on the interior, which are formed inclined to an insertion direction, for example at an angle between 1 ° to 20 °, in particular 2 ° to 8 °. The direction of insertion corresponds to the longitudinal direction of the web section 7 of the holding web 5.

On the housing 6, an insertion opening 9 is provided on the side facing the front panel 3, through which the web portion 7 can be inserted into the hollow chamber of the housing 6 and to the clamping bodies 10. The two support walls 12 and 13 spread open in the direction of insertion and are inclined at the same angle to the direction of insertion. For the assembly, the web section 7 is pushed into the cage 11 between the clamping bodies 10, the cage 11 being pretensioned by a spring 25 against the direction of insertion. As a result, the cage 11 is pressed against the direction of insertion, and the web section 7 of the holding web 5 is fixed in a clamping manner between the clamping bodies 10, which in turn are supported in a clamping manner on the inclined support walls 12 and 13. As a result, the web section 7 is secured against being pulled out, since forces in the pull-out direction also prestress the clamping bodies 10 in the pull-out direction against the inclined support walls 12 and 13 and thus the clamping forces are further increased so that the web section 7 is self-lockingly secured against pulling out.

In FIG. 3, the holding web 5 is shown in the assembled position, in which the web section 7 is fixed between the two clamping bodies 10, which in turn are supported on the support walls 12 and 13. The front panel 3 can now not be pulled against the direction of insertion from the side frame 2 and is fixed in the desired position. The length of the web section 7 is dimensioned in such a way that the front panel 3 can be fixed relative to the side frame 2 over a certain distance in order to be able to take a tolerance compensation before. The distance along which the web section 7 can be set in the housing 6 is, for example, between 10 mm and 40 mm.

In Figure 4, the device 4 is shown in a release position. The device 4 comprises a release element 14, which is designed as a pivotable lever, and the cage 11 can be moved in the insertion direction counter to the force of the spring 25 by means of a pivoting movement. As a result, the clamping bodies 10 are also moved in the insertion direction, so that the clamping forces for the non-positive fixing of the web section 7 are released and the holding web 5 can be pulled out of the housing 6. Instead of the pivotable lever as the release element 14, a linear or curved slide can be provided for moving the clamping body 10 or a tool is inserted from the outside into the housing 6 to release the fixation.

In Figures 5 and 6, the device 4 for releasably fixing the front panel 3 on the side frame 2 is shown in an exploded view. The Ge housing 6 is essentially U-shaped, with the two legs of the U forming the inclined support walls 12 and 13 on the inside, which are connected to one another via a base. The spring 25, which is designed as a leaf spring, is supported on the floor, although other types of springs can also be used. The insertion opening 9 on the housing 6 is surrounded by two inwardly projecting webs 15 and 16, so that the insertion opening 9 is essentially slit-shaped. An insertion bevel 17 is formed on at least one of the webs 15 or 16, preferably on both webs, in order to facilitate the introduction of the web section 7 into the housing 6.

The cage 11 comprises two channels 18 and 19 in which the clamping bodies 10 are inserted. The clamping bodies 10 are designed as balls in this exemplary embodiment, but can also be designed as cylinders or barrels. The ball diameter corresponds at most to half the width of the inner housing and is preferably in a range between 0.3 to 0.5 of the width of the housing 6. Therefore, four spherical clamping bodies 10 are preferably used per housing 6. The clamping bodies 10 are held captive in the channels 18 and 19, which extend essentially perpendicular to the direction of insertion. Each channel 18 and 19 is connected to an insertion channel 20 in the cage 11 via an opening 21. The web section 7 reaches the Einführka channel 20 during assembly and can act through the opening 21 on the clamping body 10 and contact the se in order to press them against the support walls 12 and 13.

Furthermore, the schematically illustrated release element 14 can be seen, which has egg NEN actuating portion 23 which acts on the cage 11 to move it for unlocking in the insertion direction. The release element 14 also has a protruding grip portion 22 which is accessible to the fitter after removing part of the side frame. The release element 14 can engage through an opening (not shown) in the housing 6 in order to be able to move the cage 11 via the actuating section 23. Furthermore, a bearing for the rotatable mounting of the Löseelemen th 14 can be provided in the housing 6. Instead of a rotary bearing, a linear guide can also be provided for such a release element.

In Figure 7, the device 4 is shown in which the housing 6 is arranged between two walls 24, which serve either as additional components or as walls of the side frame 2 and enclose the housing 6 perpendicular to the insertion direction. The housing 6 can be designed to be particularly narrow for narrow side frames 2, for example between 6 mm to 12 mm, in particular 8 mm to 10 mm.

In the illustrated embodiment, the web section 7 is rectangular in cross-section and is held on opposite sides via two clamping bodies 10, which are designed as balls. It is of course possible to vary the geometry of the web section 7 and to arrange more clamping bodies 10 in the housing 6 for higher holding forces. In addition, the web section 7 can also have a round or angled or round cross-section instead of a rectangular shape. List of reference symbols

1 drawer

2 side frame 3 front panel

4 device

5 retaining bar

6 housing

7 web section 8 fastening strip

9 insertion opening

10 sprags

11 cage

12 support wall 13 support wall

14 release element

15 bridge

16 bridge

17 lead-in chamfer 18 channel

19 channel

20 insertion canal

21 opening

22 handle section 23 actuation section

24 wall

25 spring

Claims

Expectations

1. Device (4) for releasably fixing a front panel (3) on a Be tenzarge (2) of a drawer (1), with a folding web (5) and a housing (6) in which at least one movable clamping body (10) is attached is arranged, wherein on the housing (6) an insertion opening (9) for introducing the folding web (5) in an insertion direction into the housing (6) is provided, characterized in that on the housing (6) at least one in An angle to the direction of insertion aligned support wall (12, 13) is provided and the folding web (5) is secured by the at least one clamping body (10) resting on the support wall (12, 13) against being pulled out against the direction of insertion.

2. Apparatus according to claim 1, characterized in that the fold web (5) is self-locking on the at least one clamping body (10) keep GE.

3. Device according to claim 1 or 2, characterized in that the folding web (5) is arranged between at least two clamping bodies (10) which each bear against a supporting wall (12, 13).

4. Device according to one of the preceding claims, characterized in that the clamping bodies (10) are held in a cage (11) in the Ge housing (6).

5. The device according to claim 4, characterized in that the cage (11) has at least two channels (18, 19) for receiving clamping bodies (10) which have an opening (21) to an insertion channel (20) for the folded web (5 ) exhibit.

6. Device according to one of the preceding claims, characterized in that the inclination of the at least one support wall to the insertion direction is in a range between 1 ° to 20 °, in particular 2 ° to 8 °.

7. Device according to one of the preceding claims, characterized in that the at least one clamping body (10) is designed as a ball, cylinder or barrel Zy.

8. Device according to one of the preceding claims, characterized in that the insertion opening (9) is slot-shaped and the holding web (5) is rectangular in cross section.

9. Device according to one of the preceding claims, characterized in that the clamping bodies (10) are provided on opposite sides of the holding web (5).

10. Device according to one of the preceding claims, characterized in that the at least one supporting wall (12, 13), in particular all supporting walls (12, 13), are formed integrally with the housing (6).

11. Device according to one of the preceding claims, characterized in that a release element (14) is provided, by means of which the clamping bodies (10) can be moved for unlocking the holding web (5).

12. The device according to claim 11, characterized in that the Lö seelement (14) is designed as a pivotable lever or as a movable slide.

13. Drawer (1) with a side frame (2) and a front panel (3) which is fixed to at least one side frame (2) via a device (4).

14. Drawer according to claim 13, characterized in that between the front panel (3) and the side frame (2) at least two Vorrich lines (4) for releasably fixing the front panel (3) on the side frame (2) are provided.

15. A drawer according to claim 13 or 14, characterized in that on the front panel (3) at least one retaining web (5) of the device (4) is fi xed and the housing (6) on the side frame (2) is fixed.

16. Drawer according to one of claims 13 to 15, characterized in that the housing (6) has a width of less than 15 mm, in particular less than 12 mm, and is arranged in a hollow chamber of the side frame (2) in the assembly position.