CN114206160A

CN114206160A - Device for fixing drawer

Info

Publication number: CN114206160A
Application number: CN202080055881.0A
Authority: CN
Inventors: S·克劳斯
Original assignee: Paul Hettich GmbH and Co KG
Current assignee: Paul Hettich GmbH and Co KG
Priority date: 2019-08-26
Filing date: 2020-08-05
Publication date: 2022-03-18
Anticipated expiration: 2040-08-05
Also published as: DE102019122856A1; WO2021037504A1; EP4021246B1; EP4021246A1; CN114206160B

Abstract

A device for fastening a drawer (1) on a rail (4) of a pull-out guide comprises a drawer (1), a fastening device (5) fastened on the rail (4), and a receiving element (10, 20, 30, 40, 50, 60) which is held on the drawer (1) and on which the fastening device (5) engages at least to some extent, wherein the receiving element (10, 20, 30, 40, 50, 60) is held on the drawer (1) in a displaceable manner and is pretensioned in the direction of the fastening device (5). This makes it possible to avoid lifting of the drawer even if production tolerances are present.

Description

Device for fixing drawer

Technical Field

The invention relates to a device for fixing a drawer to a rail of a pull-out guide, comprising a drawer, a fastening device fixed to the rail, and a receiving element held on the drawer, and on which the fastening device engages at least to some extent.

Background

DE 202008011114U 1 shows a pull-out guide for a drawer, wherein hooks are integrally formed or fixed on the rails of the pull-out guide. A spring element may be provided on the hook in order to arrange the drawer in a clamping manner between the rear hook and the front fastening means. However, this reduces the overlap between the hook and the drawer.

The drawer has manufacturing tolerances in the longitudinal direction of the rails of the pull-out guide. In order to be able to use the pull-out guide for different drawers, the length of the fastening means, which are usually hook-shaped, is also limited in the longitudinal direction of the drawer, for example so that the fastening means can be inserted into an opening in a rear panel made of wood material. If such tolerances result in no overlap of the fastening device with the receiving element at the rear side of the drawer, the drawer is no longer secured against being lifted.

Thus, EP 1986523B 1 proposes an adjustable bracket at the rear end of the running rails to fix the drawer. The adjustable bracket has multiple parts, making assembly and manufacture complicated.

Disclosure of Invention

It is therefore an object of the present invention to provide a device for fixing a drawer to a rail of a pull-out guide, which device provides tolerance compensation in a simple manner in the event of length variations due to manufacture.

This object is solved by a device having the features of claim 1.

In the device according to the invention, the receiving element is held displaceably on the drawer and is pretensioned towards the fastening device, which engages at least partially on the receiving element. Thus, tolerance compensation can be made in the longitudinal direction of the rail, so that a sufficient overlap of the fastening means on the receiving element is ensured. This ensures that the drawer is firmly fixed to the rails of the pull-out guide.

Preferably, the receiving element is arranged in an assembly position spaced apart from the rear panel and the base of the drawer and is moved to the drawer against the force of the spring or resilient receiving element via the fastening means during assembly. In the assembled position, the fastening device can therefore be carried on the receiving element in a clamping manner, wherein the clamping force is optionally generated by an additional spring or by the elastically formed receiving element itself.

In a first variant, the receiving element is slidably guided on the holder. In this case, corresponding linear guides may be formed on the holder and the receiving element, such as webs, grooves or other elements guiding the displacement in the longitudinal direction of the rail. In a second variant, the receiving element can be held pivotably, in particular rotatably, on the bearing element, instead of being displaced. In this case, the receiving element can be arranged pivotably about a vertical axis as well as about a horizontal axis.

Preferably, the receiving element is pretensioned towards the fastening device by means of an additional spring. The spring can then be arranged between the receiving element and the holder.

For an optimal positioning of the drawer, a substantially wedge-shaped receptacle can be formed on the receiving element for centering the fastening device. The receiving portion may be open at an upper side and formed as an open groove-shaped receiving portion. On this receptacle, the side walls are preferably arranged on two opposite sides inclined with respect to the longitudinal direction of the rail, which sides center the fastening device on the receiving element. Centering can also be achieved by the side walls on the receptacle itself being inclined with respect to the vertical plane, so that the fastening means is inserted centrally between the side walls.

In a further development, the receiving element can comprise a sleeve in which the fastening device is at least partially inserted. Such a sleeve may be slidably mounted on the tubular holder, resulting in a particularly compact structure.

The holder or bearing element is preferably fixed to the side frame of the drawer. For this purpose, a support can be fixed in the side frame, which support is made, for example, of bent sheet metal and has means for guiding or holding the retainer element on a web projecting from the side frame. Alternatively, the retainer or bearing element may be fixed to the base or rear panel of the drawer.

For ease of manufacture, the fastening means may be formed integrally with the rail of the pull-out guide and may protrude at an angle in side view. Advantageously, the fastening means may be formed as a hook and then comprise a web projecting upwards from the rail and a web arranged parallel to the longitudinal direction. Alternatively, the fastening means may be secured as an additional component, such as a cap secured to the plug or rail.

The device according to the invention for fixing a drawer to a rail of a pull-out guide is used in particular for furniture or household appliances in order to fix the drawer firmly to the rail.

Drawings

The invention will be explained in more detail below with reference to a number of exemplary embodiments shown in the drawings, in which:

FIG. 1A shows a perspective view of a piece of furniture having a plurality of drawers;

FIG. 1B shows a perspective view of a drawer having a means for securing the drawer to a rail according to a first exemplary embodiment;

fig. 2A and 2B show two views of the device of fig. 1 during assembly;

figures 3A and 3B show two views of the device in an assembled position;

fig. 4 shows a perspective view of a device for fixing a drawer according to a second exemplary embodiment;

fig. 5A and 5B show two views of the device of fig. 4 during assembly;

FIGS. 6A and 6B show two views of the device of FIG. 4 in an assembled position;

fig. 7 shows a view of a device for fixing a drawer according to a third exemplary embodiment;

FIG. 8 shows a view of the device of FIG. 7 during assembly;

FIGS. 9A and 9B show two views of the device of FIG. 8 in an assembled position;

fig. 10 shows a view of a device for fixing a drawer according to a fourth exemplary embodiment;

FIG. 11 shows a view of the device of FIG. 10 during assembly;

FIGS. 12A and 12B show two views of the device of FIG. 11 in an assembled position;

FIG. 13 shows a view of a drawer with arrangement according to a fifth exemplary embodiment;

fig. 14A-14C show various views of fig. 13 during assembly;

15A and 15B show two views of the device of FIG. 14 in an assembled position;

fig. 16 shows a view of a modified sixth exemplary embodiment;

fig. 17A and 17B show two views of another exemplary embodiment of the modification, and

fig. 18A and 18B show two views of the exemplary embodiment of fig. 17 in an assembled position.

Detailed Description

The piece of furniture 100 comprises a furniture body 101 on which one or more drawers 1 are movably mounted. For this purpose, pull-out guides are provided in each case, which are fixed to both side walls of the furniture body 101.

Each drawer 1 comprises a base 2 and two side frames 3, wherein only the rear corner region of the drawer 1 is shown in fig. 1B without a rear panel, which is also not shown in fig. 2-16 below. The side frames 3 are of hollow design, so that means for attaching the rear panel are provided in the interior space. Furthermore, a support can be provided in the side frame 3, on which support means are arranged for fixing the drawer 1 to the rails 4 of the pull-out guide.

The rail 4 comprises fastening means, here in the form of hooks 5, which are formed integrally with the rail 4, but can also be manufactured as a separate component. The hook 5 comprises an upwardly projecting web 6 and a web 7 oriented in the longitudinal direction of the rail 4 and facing the drawer 1.

In order to fix the drawer 1 to the rail 4, a receiving element 10 is provided, said receiving element 10 at least partially overlapping the horizontal web 7 of the hook 5.

In fig. 2A and 2B, the means for fixing the drawer 1 to the rail 4 is shown without the side frame 3. Fixed in the side frame 3 is a support 17, which support 17 can be fixed to two angled sections 18 having openings in the side frame, for example by bolts passing through openings in the sections 18. The support 17 is made of a bent metal plate and includes a web 16 projecting inwardly from the side frame 3, the retainer 14 being fixed to the web 16. The holder 14, on which the transverse projection strips 15 engaging in corresponding grooves on the holder 14 are formed, is used for displaceably mounting the receiving element 10. The receiving element 10 guided linearly in this way is pretensioned toward the rear side by means of a spring 13.

If the drawer 1 is to be mounted on the hook 5, the drawer 1 is moved together with the receiving element 10 towards the hook 5 until the mounting position shown in fig. 3A and 3B is reached. The hook 5 engages on the receiving element 10 via the web 7 and the receiving element can be pressed into the holder 14 variably in the longitudinal direction of the rail 4, depending on the length of the drawer 1. Thus, one end of the spring 13 is supported on the holder 14, while the opposite end is supported on the receiving element 10 which is pretensioned towards the hook 5.

The receiving element 10 has a groove-shaped receptacle 11 on its upper side, which groove-shaped receptacle 11 comprises two side walls 12 tapering in a wedge-shaped manner. In this way, if the hook 5 is placed off-center on the receiving portion 11 of the receiving element 10, the hook 5 can be centered during assembly. The width of the slotted receptacle 11 can also be smaller in order to be able to achieve a more precise centering of the hook 5 relative to the receiving element 10 during assembly. Likewise, it is possible to use only the receptacle on one side of the drawer as a center and to purposefully make the receptacle wider on the other side of the drawer, in order to obtain a fixed-loose bearing situation that can prevent the system from deforming due to width tolerances. The same applies to the centering of the other exemplary embodiments. For easier access, the receptacle 11 may have a small bevel or chamfer on the rear side.

Further exemplary embodiments are described below, wherein the same components as in the first exemplary embodiment are denoted by the same reference numerals.

In fig. 4, a drawer 1 is shown, wherein a modified receiving element 20 is held on a support 17 fixed in the side frame 3, said element 20 being non-slidably but rotatably mounted and clamped by the hook 5.

As shown in the detailed views of fig. 5A and 5B during assembly, a bearing element 27 is integrally formed on the support 17 at the inwardly projecting web 16, the shaft 24 passing through said bearing element 27. Rotatably mounted on the shaft 24 is a receiving element 20, said receiving element 20 having a channel-shaped receptacle 22, said channel-shaped receptacle 22 having two upwardly projecting webs 21, said webs 21 tapering wedge-shaped downwards so that the hook 5 is centered to some extent during assembly. The receiving element 20 thus protrudes in the assembled position together by the web 21 towards the rear side of the hook 5 and can then be pivoted about the shaft 24. In the region of the shaft 24, at least one spring 23 is provided, which spring 23 is formed in the exemplary embodiment as a leg spring and is supported on the web 16 by means of one leg 25 and on the receiving element 20 by means of an opposite leg 26. At least one spring 23 tensions the receiving element 20 towards the hook 5. At least one spring 23 may also be secured to the web 16 by embossing.

When the drawer 1 is assembled, the receiving member 20 moves toward the hook 5, as shown in fig. 6A and 6B. The hook 5 engages with its web 7 on the receiving element 20 and pushes the receiving element 20 forward against the force of the spring 23, so that a certain tolerance compensation takes place. The drawer 1 is secured in the rear region against being lifted by a hook 5, which hook 5 engages on a receiving element 20.

In fig. 7, a modified exemplary embodiment is shown, wherein the drawer 1 comprises a resilient receiving element 30, said resilient receiving element 30 partially overlapping the hook 5 on the rail 4. The receiving element 30 is tensioned between the two

pins

31 and 32 and rests against the hook 5 in the central area between the

pins

31 and 32.

In fig. 8, the receiving element 30 is shown before assembly when the hooks 5 are spaced apart. The receiving element 30 is formed to be bent toward the rear side and wound around the

pins

31 and 32 at opposite ends. In this respect, one pin 31 is fixedly arranged on the web 16 of the holder 17, while the second pin 32 can slide on an elongated hole 33 in the web 16. A stop 34 is also provided on the web 16, said stop 34 being formed by an upwardly bent section on the web 16 and being positioned between the two

pins

31 and 32.

If the drawer is now moved relative to the hook 5 in order to assemble the drawer, the hook 5 is brought into contact with the receiving element 30 by the upwardly projecting web 6 and the web 7 engages on the receiving element 30. For tolerance compensation, the receiving element 30 can now be bent, with the pin 32 being displaced along the elongate hole 33, as shown in fig. 9A and 9B. The hook 5 then engages on the receiving element 30 in the adjustment position and, in addition, on the stop 34. The hook 5 can also be firmly connected to the drawer 1 via this elastic receiving element 30, said elastic receiving element 30 being made, for example, of a bent metal plate and being elastic in the longitudinal direction of the rail 4 in order to prevent the drawer 1 from being lifted in the rear region.

In fig. 10, a fourth exemplary embodiment of a device for fixing a drawer 1 to a hook 5 on a rail 4 is shown, wherein a receiving element 40 arranged on a web 16 of a support 17 is pivotable in order to be able to perform tolerance compensation in the longitudinal direction of the rail 4.

As can be seen from fig. 11, the receiving element 40 has a retaining section 41 which is fixed to the support 17. The retaining section 41 is arranged at an angle to the web-shaped receiving element 40 which can pivot about a substantially vertical axis. A recess 42 is formed on the receiving element 40 for receiving the hook 5 and centering the hook 5.

Furthermore, a stop 43 is formed on the web 16 of the support 17, said stop 43 further comprising a recess 44 surrounded by inclined side walls to allow the hook 5 to be centred during assembly.

For assembly, as shown in fig. 12A and 12B, the hook 5 is moved relative to the drawer 1, wherein the receiving element 40 can be pivoted by the hook 5 until the receiving element 40 rests against the stop 43. In this case, the hook 5 covers the receiving element 40 with the web 7 and, optionally, also the stop 43. Tolerance compensation in the longitudinal direction of the rail 4 can also be achieved by means of such a pivotable receiving element 40.

In fig. 13, another exemplary embodiment of an improved receiving element 50 for fixing a drawer 1 to a hook 5 is shown. The receiving element 50 is formed as a sleeve which is slidably mounted on a sleeve-shaped holder 51. The receiving element 50 may alternatively be arranged on the rear panel corner connector or directly on the sheet metal rear panel.

As can be seen from fig. 14A to 14C, the sleeve-shaped holder 51 is held on a web 52, which web 52 is fixed to the side frame 3, rear panel or base of the drawer. The web 52 forms a bottom on the sleeve-shaped holder 51 and also serves to support a spring 53 arranged between the web 52 and the receiving element 50. The receiving element 50 comprises an outwardly projecting tab 54 which engages an inwardly projecting tab 55 on the holder 51 such that movement of the receiving element 50 is limited by the spring 53.

To mount the hook 5 on the receiving element 50, the hook 5 is moved relative to the receiving element 50 until the web 7 aligned parallel to the longitudinal direction of the rail 4 engages the sleeve-shaped receiving element 50, as shown in fig. 15A. Then, the hook 5 is held firmly on the receiving element 50 and the drawer 1 is secured against being lifted. If the design of the drawer 1 is long, the receiving element can be pressed into the holder 51, as shown in fig. 15B. Then, by pressing the receiving element 50 into the sleeve-shaped holder 51, the spring 53 is compressed, but the hook 5 is still held firmly in the receiving element 50 by the web 7.

Fig. 16 shows a modified embodiment with respect to fig. 13, in which the receiving element 50 is arranged on the holder 51 as described above, but the holder 51 is fixed to the base 2 of the drawer 1 instead of the side frame.

In fig. 17A and 17B, another exemplary embodiment is shown in which receiving element 60 is slidably disposed on holder 61. The holder 61 is fixed to the rear panel 9 of the drawer by screws 62. A receptacle for receiving element 60 is arranged in holder 61, in which receptacle a spring 63 is provided, which spring 63 pretensions receiving element 60 towards the rear side towards hook 5. On the receiving element 60, there is an outwardly projecting projection 64 which abuts an inwardly projecting web 65 of the holder 61, so that the receiving element 60 cannot fall out of the holder 61. In this case, the holder 61 in this exemplary embodiment may be dimensioned such that an expansion function may be accommodated, such as, for example, at least one battery for the illumination of the drawer 1 or elements of the inclination adjustment.

For assembly, the hook 5 is moved relative to the holder 61, and then the receiving element 60 can be pressed into the holder 61, as shown in fig. 18A-18B. The web 7 of the holder then engages the channel-shaped receptacle on the receiving element 60, wherein optionally the spring 63 is compressed in the holder 61, depending on the length of the drawer 1.

The above exemplary embodiments may also be combined in any desired manner. For example, the receiving element may be both displaceable and pivotably arranged to increase the distance of the movable bearing in the longitudinal direction of the rail. In addition, other means for centering or aligning the hook 5 with respect to the receiving element may also be provided, or as mentioned, centering may be performed on one side only.

List of reference numerals

1 drawer

2 base

3 side frame

4 track

5 hook

6 web

7 web plate

9 rear panel

10 receiving element

11 accommodating part

12 side panel

13 spring

14 holder

15 strips

16 web

17 support piece

18 section(s)

20 receiving element

21 web

22 receiving part

23 spring

24 shaft

25 legs

26 legs

27 bearing element

30 receiving element

31 pin

32 pin

33 elongated hole

34 stop

40 receiving element

41 holding section

42 recess

43 stop piece

44 recess

50 receiving element

51 holder

52 web

53 spring

54 projection

55 projection

60 receiving element

61 holder

62 screw

63 spring

64 projecting part

65 Web plate

100 furniture

101 furniture body.

Claims

1. Device for fixing a drawer (1) to a rail (4) of a pull-out guide, comprising a drawer (1), a fastening device (5) fixed to the rail (4) and a receiving element (10, 20, 30, 40, 50, 60) held on the drawer (1), on which the fastening device (5) engages at least to some extent, characterized in that the receiving element (10, 20, 30, 40, 50, 60) is held in a movable manner on the drawer (1) and is pretensioned towards the fastening device (5).

2. Device according to claim 1, characterized in that the receiving element (10, 20, 30, 40, 50, 60) is arranged in a mounting position spaced apart from a rear panel (9) or rear panel mounting interface and a base (2) of the drawer (1) and can be moved to the drawer (1) via the fastening means (5) against the force of a spring (13, 23, 53, 63) or an elastically formed receiving element (30, 40).

3. Device according to claim 1 or 2, characterized in that the receiving element (10, 30, 50, 60) is displaceably guided on the holder (14, 33, 51, 61).

4. A device according to any one of claims 1 to 3, characterised in that the receiving element (20, 40) is pivotably held on a bearing element (24, 41).

5. Device according to any one of the preceding claims, characterized in that the receiving element (10, 20, 50, 60) is pretensioned towards the fastening device (5) by means of a spring (13, 23, 53, 63).

6. Device according to any one of the preceding claims, characterized in that the receiving element (10, 20) comprises a wedge-shaped receptacle for centering the fastening device (5) in at least one spatial direction.

7. Device according to any one of the preceding claims, characterized in that a trough-shaped receptacle which is open towards the upper side is formed on the receiving element (20, 40).

8. Device according to any one of the preceding claims, characterized in that the receiving element (50, 60) comprises a sleeve into which the fastening means (5) is at least partially inserted.

9. Device according to any one of the preceding claims, characterized in that the holder (14, 51, 61) or the bearing element (24, 31, 41) is fixed to the side frame (3) of the drawer (1).

10. Device according to any one of the preceding claims, characterized in that the receiving element (30, 40) is made of an elastically resilient material.

11. Device according to any one of the preceding claims, characterized in that the fastening means are formed as hooks (5) integral with the rails (4) of the pull-out guide and are angled in side view.

12. Furniture or household appliance having a drawer (1) arranged on at least one pull-out guide, the drawer (1) being fixed to a rail (4) of the pull-out guide via a device according to any one of the preceding claims.