WO2020233969A1

WO2020233969A1 - Device for fixing a drawer

Info

Publication number: WO2020233969A1
Application number: PCT/EP2020/062308
Authority: WO
Inventors: Stefan Klaus; Bernd Meyer; Anke Rothe-Wesemann
Original assignee: Paul Hettich Gmbh & Co. Kg
Priority date: 2019-05-17
Filing date: 2020-05-04
Publication date: 2020-11-26
Also published as: CN113825429A; DE102019113108A1; AT526255A5; CN113825429B; AT526255B1

Abstract

The invention relates to a device for fixing a drawer (1) to a movable rail (5) of a pull-out guide (4), comprising a support (6) which is fixed to the drawer (1) and on which the movable rail (5) of the pull-out guide (4) can be placed using a contact surface, wherein a movable catch (10, 41) engages through the support (6) and/or the contact surface, and the support (6) and the movable rail (5) are surrounded by a U-shaped section of a holder (7). The U-shaped section is reinforced against bending by a metal reinforcing element (20, 30). In this manner, the fixation of the drawer (1) to the movable rail (5) is ensured for a long duration.

Description

Device for fixing a drawer

The present invention relates to a device for fixing a drawer on a movable rail of a pull-out guide, with a carrier fixed to the drawer, to which the movable rail of the pull-out guide can be placed with a contact surface, the carrier and / or the contact surface being through a movable pawl is penetrated and the carrier and the movable rail are surrounded by a U-shaped portion of a holder.

WO 2012/068594 discloses a coupling device for drawers, in which a latching part is provided for releasably coupling the drawer to an extendable rail. The locking part can be released using a handle part. The latching part comprises a U-shaped receptacle, a spring tongue on the latching part having a stiffening rib in order to reduce the flexibility of the spring tongue. The plastic locking part, however, has the disadvantage that plastic can flow under load and changes its original shape. This can affect the strength of the coupling device, which is required for a long period of time.

It is therefore the object of the present invention to provide a device for Fixie Ren a drawer on a movable rail of a pull-out guide, which can guarantee secure fixation for a long period of time.

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

In the device according to the invention, a carrier and a movable rail are encompassed by a U-shaped section of a holder, the U-shaped section being reinforced to prevent bending by a metallic reinforcing element. As a result, the U-shaped section can be better protected against deformation which has a disadvantageous effect on the holding forces of the connection between the movable rail and the carrier. Ver attempts by the applicant have shown that the additional reinforcement of the U-shaped section by a metallic reinforcement element, the holding forces of the connection against tearing out for a long time. space can be guaranteed. If the rail has two openings offset in the longitudinal direction for locking the rail on the pawl, different mounting positions can be provided, depending on the structure of the drawer on the front panel and the holding forces the connection must withstand. The arrangement of two longitudinally offset openings also enables the drawer to be pre-assembled on the rail in order to then fix the drawer in a final assembly position on the movable rail in a second assembly step.

Preferably, the metallic reinforcing element is also U-shaped and engages around a portion of the carrier and a portion of the ver movable rail. The metallic reinforcing element can be made from a bent sheet steel or a steel wire. The metallic reinforcement element can optionally be embedded in the U-shaped section, for example as an insert in the injection molding process. For the assembly, however, the metallic reinforcing element is preferably plugged onto the U-shaped section in a receptacle which can include a groove-shaped channel and / or a passage.

The holder preferably comprises a molded part made of plastic with the U-shaped section on which a slot-shaped receptacle is formed. A section of the displaceable rail and a section of the carrier are then inserted into the slot-shaped receptacle, both of which are strip-shaped and bear against one another in the slot-shaped receptacle. Movement of the two components relative to one another is prevented by the pawl, which at least passes through the carrier or the rail or both the carrier and the rail. The pawl thereby forms a blocking element in order to prevent the rail from sliding relative to the carrier.

In a first variant, the pawl is formed integrally with the carrier. The pawl can be formed by a bendable section of the carrier and, for example, be formed as a projection by deformation. The carrier can be made from a bent sheet of metal. Alternatively or additionally, a pawl can also be formed integrally with the displaceable rail, which catches through an opening on the carrier.

In a further embodiment, the pawl is pivotably mounted on the holder and passes through a first opening on the carrier and a second opening on the movable rail in order to prevent it from moving against one another. nander to secure. A plurality of pawls can also be provided to fix the movable rail on the carrier. The pawl can also be biased into a protruding position by a spring.

The invention is explained in more detail below on the basis of several exemplary embodiments with reference to the accompanying drawings. Show it:

Figure 1 is a perspective view of a drawer with egg ner pull-out guide;

FIGS. 2A to 2C show several views of a side frame of the drawer with a rail of the pull-out guide;

Figures 3A and 3B show two views of the side frame of Figure 2 without pulling guide;

Figure 4 is a perspective exploded view of the Se

frame with a holder during assembly;

FIG. 5 is a perspective view of a modified folder; FIG. 6 shows a holder according to a further embodiment;

FIG. 7 shows a holder in one embodiment with a movable pawl;

FIG. 8 is a perspective view of the folder of FIG. 7 in the assembled position, and FIG

FIGS. 9A to 9D show several schematic views of the drawer in the setting of a rail of a pull-out slide.

A drawer 1 comprises a base 2 which is arranged between two side frames 3. Below the bottom 2, a pull-out guide 4 is provided on opposite sides, which has a movable rail 5 with the drawer 1 and one or more additional rails which can be moved relative to one another. A holder 7 is provided at the end of the movable rail 5 in order to connect the rail 5 to a carrier 6 on the side frame 3. FIG. 2A shows a side frame 3 of the drawer 1 together with the rail 5 of the pull-out guide 4. As can be seen from the detailed view in FIG. 2B, the movable rail 5 rests with a vertical web on a carrier 6 which is made from a bent sheet metal.

The contact surfaces on the rail 5 and the carrier 6 are strip-shaped.

In the area of the contact surface, the rail 5 has two openings 51 and 52, at least one opening 51 being penetrated by a pawl 10 in order to fix the rail 5 on the carrier 6. The abutting contact surfaces on the support 6 and the rail 5 are encompassed by a U-shaped section from a holder 7, an arm 8 being visible, which rests against a section of the rail 5 and is arranged parallel to the longitudinal direction of the rail 5 .

A groove-shaped receptacle 9 is also provided on the carrier 6 in order to receive an edge of the base 2 of the drawer 1. The carrier 6 can extend over the entire length of the side frame 3 or be made shorter and have several spaced apart sections.

In FIG. 2C, the holder 7 is shown in the assembled position, in which a U-shaped section engages around a web of the rail 5 and a web of the carrier 6. In the illustrations, the rail 5 comprises a recess in order to make the holder 7 visible. This recess can also be omitted, so that the rail 5 is not stepped on the end face.

In FIGS. 3A and 3B, the side frame is shown without a rail 5. The holder 7 is inserted into a slot-shaped receptacle on the holder 7, the pawl 10 being formed integrally with the carrier e. The pawl 10 is made by embossing a projection which is arranged on a flexible web 11 is. The bendable web 11 is separated from the rest of the material of the carrier 6 via a slot 12 so that the pawl 10 can spring to a certain extent during assembly in order to close the pawl 10 in one of the openings 51 or 52 on the rail 5 lock into place. The carrier 6 is made of a bent metal sheet metal.

FIG. 4 shows the mounting of the holder 7 on the carrier 6. The holder 7 is slipped onto the carrier 6 in the longitudinal direction of the rail 5, with a end section of the carrier 6 is inserted into the slot-shaped receptacle 14 on the U-shaped section of the holder 7. An end portion of Trä gers 6 is thus arranged between the arm 8 and a counter bearing 80 on the holder 7, which is made of plastic in the illustrated embodiment, but has a reinforcement insert made of metal in the area of the U-shaped portion, which from the outside is not visible. This reinforcement insert causes the arm 8 to bend less strongly relative to the counter bearing 80 and ensures that the arm 8 moves back into its starting position after the bend.

FIG. 5 shows a modified embodiment of a holder 7, which comprises a molded part made of plastic, on which a U-shaped section with a slot-shaped receptacle 14 is formed. To reinforce the U-shaped section, a metallic reinforcing element 20 made of a bent steel strip or spring steel is provided which engages around the arm 8. The reinforcement element 20 has a web 21 which rests on the outside of the arm 8 and surrounds it with a tip 22. The metallic reinforcing element 20 comprises a base section 23 which is formed essentially at right angles to the web 21 and from which a further web 24, which is supported on the carrier 7, also extends at right angles. The metallic reinforcing element 20 prevents or limits movement of the arm 8 when it is loaded by the rail 5 and the carrier 6. The metallic reinforcing element 20 can be plugged onto the molded part made of plastic from the outside and fixed in a clamping and / or latching manner.

A modified embodiment of a carrier 7 is shown in FIG. 6, in which a metallic reinforcing element 30 made of a metal wire is provided. The metallic reinforcing element 30 comprises a base section 32 and two legs 31 and 33 which run essentially parallel to one another. The leg 31 supports the arm 8 on an outside, and the leg 33 is supported on a passage of a molded part of the holder 7 abge. The reinforcing element 30 formed from the wire can be mounted in the longitudinal direction of the rail 5 on the molded part.

FIG. 7 shows a further exemplary embodiment of a holder 7 which has a molded part made of plastic on which a reinforcing element 30 is arranged, as has already been shown with reference to FIG. In the exploded view of Figure 7 it can be seen that the molded part made of plastic has a groove-shaped receptacle 34 for the reinforcement element 30 and on one Intermediate wall 35, a passage for the leg 33. As a result, the reinforcement element 30 can be fixed captively on the molded part made of plastic.

In addition, a pivot lever 40 is provided, which is pivotably mounted on the holder 7 via a bearing element 42. The pivot lever 40 comprises a pawl 41 designed as a projection, which is arranged on the holder 7 in the region of the slot-shaped receptacle 14. The pivot lever 40 is biased into a protruding position via a spring 43.

The mounted position of the pivot lever 40 with the pawl 41 is shown in FIG. The pawl 41 protrudes into the slot-shaped receptacle 14, and the pivot lever 40 can be pivoted against the force of the spring 43 during the assembly of the movable rail 5 and the carrier 6, in order to then open at an opening 51, 52 on the rail 5 and a To lock the opening on the carrier 6.

Instead of a mechanical fixation of the reinforcing elements 20 and 30 made of metal, these can also be embedded in a molded part made of plastic on the holder 7, for example encapsulated. In addition, several reinforcing elements 20 and 30 can also be provided on the holder 7.

The assembly of the movable rail 20 of a pull-out guide on the U-shaped holder 6 is shown schematically in FIGS. 9A to 9D.

In FIG. 9A, the rail 5 is arranged in front of the arm 8 of the holder 7, and a wall section of the rail 5 presses against the pawl 10, which has been pivoted over the flexible web 11. If the rail 5 is shifted further along the holder 7 in the direction of a front panel 13, as shown in FIG. 9B, an end section enters the slot-shaped receptacle 14 of the U-shaped holder 7. Furthermore, the pawl 10 latches on the opening 52 of the rail 5. In this locked position, the rail 5 is pre-mounted on the U-shaped holder 7. This position can be used for transport purposes, for example.

FIG. 9C shows the position when the rail 5 is pushed further into the slot-shaped receptacle 14 of the holder 7. By contact with egg ner run-on bevel on the pawl 10, this is deflected again and presses against a wall section of the rail 5, as shown by the arrow is. In this position, the rail 5 presses against the arm 8, as shown by the second arrow. The arm 8 is supported by the reinforcement element 20. The rail 5 can now be pushed further into the holder 7 until the pawl 10 engages in the second opening 51, as shown in FIG. 9D. As a result, the pawl 10 no longer presses against the rail 5, and the arm 8 can pivot back, the pivoting movement being supported by a force from the reinforcement element 20 on the arm 8.

List of reference symbols

1 drawer

2 floor

3 side frame

4 drawer runners

5 rail

6 carriers

7 holders

8 arm

9 recording

10 latch

11 bridge

12 slot

13 front panel

14 Admission

20 reinforcement element

21 bridge

22 tip

23 base section

24 bridge

30 reinforcement element

31 legs

32 base section

33 legs

34 Recording

35 partition

40 swivel levers

41 latch

42 bearing element

43 spring

51 opening

52 opening

80 counter bearings

Claims

Expectations

1. Device for fixing a drawer (1) on a movable rail (5) of a pull-out guide (4), with a carrier (6) fixed to the drawer (1) to which the movable rail (5) of the pull-out guide (4 ) can be applied with a contact surface, the carrier (6) and / or the contact surface being gripped by a movable pawl (10, 41) and the carrier (6) and the movable rail (5) by a U-shaped section of a Holder (7) are encompassed, the movable pawl (10, 41) in a first position with a first opening (52) and the movable pawl (10, 41) in a second position with a second opening (51) in engagement can be brought, characterized in that the U-shaped section is reinforced against bending by a metallic reinforcing element (20, 30).

2. Device according to claim 1, characterized in that the metallic reinforcing element (20, 30) is U-shaped.

3. Apparatus according to claim 1 or 2, characterized in that the metallic reinforcing element (20, 30) is made from a bent steel sheet or steel wire.

4. Device according to one of claims 1 to 3, characterized in that the metallic reinforcing element (20, 30) is pushed onto the U-shaped section in a receptacle.

5. Device according to one of the preceding claims, characterized in that the holder (7) comprises a molded part made of plastic with the U-shaped section and a slot-shaped receptacle (14).

6. Device according to one of the preceding claims, characterized in that the pawl (10) integrally with the carrier (6) is ausgebil det.

7. Device according to one of the preceding claims, characterized in that the first and second openings (51, 52) are spaced from one another. 8. The device according to claim 7, characterized in that the United strengthening element (20, 30) in a position of the pawl (10, 41) between the first and second opening (51, 52) is more heavily loaded than in a position of the Pawl (10, 41) which engages in the first and / or second opening (51, 52).

9. Device according to one of claims 1 to 5, characterized in that the pawl is formed integrally with the movable rail (5). 10. Device according to one of claims 1 to 5, characterized in that the pawl (41) is pivotably mounted on the holder (7) and engages through an opening on the carrier (6) and an opening on the movable rail (5) . 11. The device according to claim 10, characterized in that the pawl

(41) is biased into a protruding position by a spring (43).

12. Furniture or household appliance with at least one drawer that has a device for fixing a drawer to a movable one

Rail of a pull-out guide according to one of the preceding claims is defined.