CN114786534A

CN114786534A - Pull-out guide and piece of furniture

Info

Publication number: CN114786534A
Application number: CN202180007118.5A
Authority: CN
Inventors: P·弗雷赫特
Original assignee: Paul Hettich GmbH and Co KG
Current assignee: Paul Hettich GmbH and Co KG
Priority date: 2020-01-23
Filing date: 2021-01-12
Publication date: 2022-07-22
Also published as: EP4093243A1; WO2021148275A1; DE102020101514A1; EP4093243B1

Abstract

The invention relates to a pull-out guide (3) comprising a fixed guide rail (5) and a running rail (6) which can be moved relative to the guide rail (5), wherein an intermediate rail (50) can optionally be provided between the running rail (6) and the guide rail (5), a fastening part (12) being fixed to the running rail (6) on or in a front end section of the running rail (6), on which fastening part a connecting part (11) for fixing a drawer system (4) is arranged, which connecting part (11) is held such that it can be adjusted relative to the fastening part (12) in the longitudinal direction of the running rail (6). At least two spaced apart fastening devices (17, 40) are provided on the connecting part (11), by means of which at least two different types of drawer systems (4) can be fixed to the pull-out guide (3).

Description

Pull-out guide and piece of furniture

Technical Field

The invention relates to a pull-out guide having a stationary guide rail and a running rail which can be moved relative to the guide rail, wherein optionally an intermediate rail can be provided between the running rail and the guide rail, wherein a fastening part is fixed to the running rail on or in a front end section of the running rail, on which fastening part a connecting part for fixing a drawer system is arranged; furniture or household appliances are also designed.

Background

WO 2016/177732 discloses a device for fixing a drawer, in which an adjusting mechanism having a web which is adjustable in the longitudinal direction of the rail is arranged on the outside on the rail of the pull-out guide and is connectable to a clamping device on the drawer. This allows high retention forces to be transmitted between the drawer and the pull-out guide, but the arrangement requires a considerable amount of installation space and numerous parts to secure the drawer to the pull-out guide.

DE 102018108647 a1 discloses a pull-out guide in which two different fastening means are provided for fixing the sliding element, so that different sliding elements can be fixed to the extension guide. For this purpose, a plug is inserted at one end of the rail, which plug can be connected to the respective pushing element via a further fastening means. This design makes the construction compact, but there is a problem that the assembled drawer will in some cases also be used with Push-to-open fittings, in which the drawer is pushed from a closed position to an over-pushed position into the body in order to unlock the ejector device. Therefore, the closed position must be located at a predetermined distance from the main body. However, the panel gap between the front panel and the furniture main body cannot be adjusted with the stopper.

Disclosure of Invention

It is therefore an object of the present invention to provide a pull-out guide which can be used flexibly and which secures a drawer in a compact design.

This object is achieved by a pull-out guide having the features of claim 1.

In the pull-out guide according to the invention, the fastening part is fixed to the running rail at or in the end section, in particular the front end section, and a connecting part for fixing the drawer system is arranged on the fastening part, which connecting part is held adjustably in the longitudinal direction of the running rail relative to the fastening part. Thus, via adjustment of the connecting member relative to the fastening member, the hole clearance (blendenenpelt) can be changed, and the position of the drawer relative to the furniture body can be adjusted. The arrangement of the fastening and connecting parts on or in the end sections of the running rails also results in a compact design, since the parts are arranged completely on the end sections of the running rails and project only slightly perpendicularly to the longitudinal direction of the running rails. A first fastening means and a second fastening means are provided on the movable running rail, each fastening means being designed for fixing a drawer element, optionally fastening a first drawer or a second drawer to the movable rail, the first drawer and the second drawer being different drawer systems. By providing the first and second attachment means to a movable (verfahrbar) running rail, the pull-out guide can be used in a more versatile manner, in particular, different drawer systems can be mounted to the movable running rail.

Drawer systems can be essentially divided into four main groups of drawer systems.

The first group of drawer systems comprises those drawers which are mounted on a pull-out guide using so-called clip-on assemblies. In this case, the pull-out guide usually has at least one vertical spindle in the front region of the pull-out guide, which projects into the receptacle of the drawer. The group is defined as a push-in drawer system.

The second set of drawer systems includes at least those of the pull-out guides that protrude into the frame. The frame is typically a structure made up of multiple metal parts with a cavity to accommodate the pull-out guide. The frame may have different configurations and may also have other materials (e.g., glass) as decorative elements. The drawer is usually assembled by sliding it, wherein a connecting element is arranged in the front region of the frame to connect the frame in the cavity with the pull-out guide. This group is defined as a system drawer system.

The third set of drawer systems includes those drawers in which the frame is located laterally adjacent to the pull-out guide and the drawer bottom is located above the pull-out guide. The frame is typically a structure made up of a plurality of metal parts. The frame may have different configurations and may also have other materials (e.g., glass) as decorative elements. The assembly of the drawer is usually done by sliding it and the shut-off connection elements are arranged on the front region of the frame in order to connect the frame with the pull-out guide. This group is defined as a floor system drawer system.

A fourth set of drawer systems includes those drawers in which the frame is located laterally adjacent to the pull-out guide and the drawer bottom is located above the pull-out guide. The frame is typically made of wood or other profiles, but the frame may also be a structure consisting of a plurality of metal parts. The frame may have different configurations and may also have other materials (e.g., glass) as decorative elements. The assembly of the drawer is usually done by sliding it. The main thing here is that a separate manually mountable coupling unit in the front region below the drawer bottom has to be fitted to the drawer, which establishes a connection with the pull-out guide. The drawer itself has no coupling interface in the front region for connection to the pull-out guide. This group is defined as a floor drawer system.

The connections to at least two of these drawer systems are each combined by correspondingly geometrically shaped fastening elements according to the object of the invention.

Preferably, guide means are formed on the fastening part and the connecting part for linearly guiding the connecting part during adjustment, thereby ensuring stable fixation of the drawer to the connecting part in different adjustment positions. The adjustment device may be designed for stepless adjustment of the connecting member, so that the position of the drawer relative to the main body can be finely adjusted. For this purpose, the adjusting device may have, for example, a rotatable knurled nut interacting with a threaded rod. In this case, the rotatable knurled nut may be designed to be non-displaceable in the axial direction for moving the threaded rod, or the threaded rod may be designed to be non-displaceable for moving the knurled nut. However, other adjustment means may be provided, such as an eccentric or worm gear (schneckenschebe) or a wedge-shaped sliding arrangement.

Preferably, the at least two fastening means are arranged on different sides, in particular on opposite sides, of the connecting member. This allows the connection to the drawer to be made on different sides.

The at least two fastening means may optionally be formed by latch openings, latch projections, racks and/or clamping surfaces.

In a preferred embodiment, the fastening component is designed as a plug which is inserted into an end section of the running rail. This facilitates assembly, whereby the plug can be fixed in the running rail in a clamping or latching manner. The depth of insertion may be limited by a collar or stop.

Preferably, the threaded rod is integrally formed on the connecting part, so that the adjusting device can be provided with only a few parts. Alternatively, the threaded rod may also be integrally formed on the fastening part.

For stable guidance, the connecting part can have a guide rod which engages in a guide channel on the fastening part, the guide channel preferably being arranged inside the running rail. This allows the running rail to support the guide channel on the outer periphery and ensures stable guidance of the guide rod of the connecting part.

The running rail is preferably substantially U-shaped in cross-section, with a slot formed between the two legs of the U. The adjustment means may be located outside the hollow chamber of the running rail adjacent to the slot so that a user does not have to engage in the slot but can turn the adjustment means, such as a knurled nut, arranged outside the hollow chamber of the running rail. In this case, in the retracted position, the adjusting device can be covered by the guide rail, so that the adjusting process is only possible if the guide rail is at least partially extended. This allows an optimal utilization of the installation space between running rail and guide rail in order to accommodate the adjustment mechanism substantially within the contour of the extension guide.

Preferably, the connecting member has at least one integrally formed latch tab for securing the drawer. Latching tabs, openings, toothed racks, clamping surfaces or other fastening means for securing the drawer may additionally or alternatively be provided on the connecting member. A plurality of successive latch tabs or openings may also be arranged on the connecting member to enable the drawer to be secured prior to the final assembly position. Preferably, at least two spaced-apart fastening means are provided on the connecting member, by means of which two different drawers can be fixed to the pull-out guide, for example a first drawer having a side frame and a rear wall made of a wood material, and a second drawer having a side frame designed as a hollow-chamber frame or as a frame having an inner wall and an outer wall spaced apart from the inner wall.

In the pull-out guide according to the invention, the ejector device is preferably fixed to the guide rail, the ejector device having a drive which is preloaded by means of an accumulator and by means of which the running rail can be ejected after unlocking of the ejector device, for which purpose the web-shaped activator is fixed to the running rail. Instead of the ejection device, a retraction device can also be mounted on the guide rail, by means of which retraction device the running rail can be retracted into the closed position immediately before the closed position is reached.

Drawings

The invention is explained in more detail below by way of examples of embodiments with reference to the accompanying drawings, which show:

fig. 1 is an exploded view of a piece of furniture with a pull-out guide;

fig. 2 and 3 are two views of the pull-out guide;

FIG. 4 is an exploded view of the pull-out guide of FIG. 2;

FIG. 5 is an exploded view of the connecting member and the fastening member without the pull-out guide;

FIG. 6 is a plan view of the fastening member and the connecting member, and

fig. 7 to 9 are various views of the fastening member and the connecting member in different positions.

Detailed Description

The piece of furniture 1 comprises a furniture body 2 on whose opposite side walls pull-out guides 3 are mounted to hold one or more drawers 4 in a movable manner. Optionally, the drawer 4 can here be moved via a pull-in device or alternatively via an ejector device to assist the user.

Fig. 2 and 3 show the pull-out guide 3 in detail between the furniture body 2 and the drawer 4. The pull-out guide 3 comprises a guide rail 5 which can be fixed to the furniture body 2 and on which the running rail 6 is held movably, but optionally one or more intermediate rails extending the pull-out guide can also be provided between the guide rail 5 and the running rail 6.

A mounting device 10 for fixing the drawer 4 in the front region is arranged on the front face of the running rail 6. The mounting device 10 comprises an externally accessible connecting part 11 on which a protruding latching projection 17 is formed, which interacts with other fastening means in order to secure the drawer 4 of the first design. Opposite the latch projection 17, a latch opening 40 is provided on the connecting part 11 for securing a drawer of the second design. A projecting hook 7 is integrally formed in the rear region of the running rail 6. The fastening device for fastening the drawer can be designed, for example, as disclosed in DE 102018108647 a 1.

Between the guide rail 5 and the running rail 6 there is also provided an ejector device 9, which ejector device 9 has a housing 90 fixed to the guide rail 5, on which housing 90 there is formed a guide rail for a movable drive 91 which can be coupled to a web-shaped actuator 8 on the running rail 6. The driver 91 is preloaded via an accumulator, which is arranged in the cartridge 92. In the closed position, the drive 91 can be locked when the energy store is tensioned and can be unlocked by pressing the drawer 4 into the furniture carcass 2 into the overpressure position, in order then to eject the drawer 4 in the opening direction by the force of the energy store.

As can be seen from fig. 3, the mounting device 10 with the connecting part 11 and the fastening part 12 is located substantially in the mounting space between the running rail 6 and the guide rail 5.

In fig. 4, the pull-out guide 3 is shown in an exploded view, and it can be seen that the mounting device 10 has a fastening part 12 which is designed as a plug which can be inserted into the hollow chamber of the running rail 6. The connecting part 11 is adjustably held on the fastening part 12.

The housing 90 of the ejector device 9 is also fixed to the guide rail 5 in order to eject the actuator 8 fixed to the running rail 6 via the drive 91. If the drawer is not ejected from the furniture carcass 2, a retraction device can also be provided on the pull-out guide 3 instead of the ejector device 9.

In fig. 5, the mounting device 10 is shown in detail, comprising a fastening part 12 fixed to the running rail 6 and an adjustable connection part 11. The fastening part 12 comprises a plug which can be inserted into the hollow chamber of the running rail 6, wherein a projecting collar 19 is formed at the end of the plug which forms a stop and limits the insertion depth. A guide channel 16 is formed in the plug, in which guide rod 15 of connecting part 11 engages, which guide rod is engaged by fastening part 12. In the extension of the guide rod 15, facing away from the fastening part 12, a receptacle 18 is formed, which projects from the running rail 6 and on the outside of which a projecting latch projection 17 is formed. The drawer can be fixed to the receiving portion 18 and the latching projection 17 by means of fastening means, preferably a plurality of different fastening means are provided on the connecting part 11, so that different types of drawers 4 can be fixed to the connecting part 11. A threaded rod 14, which is aligned parallel to the longitudinal direction of the running rail 6 but is arranged outside the hollow space of the running rail 6, is formed integrally with the connecting part 11. A knurled nut 13 is screwed onto the threaded rod 14, which is rotatably mounted on the threaded rod 14 but is held in the longitudinal direction between the eyelet 22 and the shaped body 24 in a free space 23 formed on the fastening part 12, wherein an end face of the knurled nut 13 is in contact with one side of each of the eyelet 22 and the shaped body 24. The shaped body 24 is formed with an opening 25 in which a projection 26 on the connecting part 11 engages and limits the adjustment travel of the connecting part 11 in the longitudinal direction. An end portion 21, in which a receiving portion 20 is formed for inserting the threaded rod 14, is provided on the shaped body 24 towards the front. The threaded rod 14 is thus guided in the receptacle 20 and the hole 22.

In fig. 6, the mounting device 10 is shown in an end position, in which the connecting part 11 is inserted into the fastening part 12 at the maximum insertion position. The guide rod 15 protrudes beyond the fastening part 12 and the connecting part 11 rests on a collar 19, which forms a stop for the connecting part 11.

If the gap between the front panel of the drawer 4 and the end face of the side wall of the furniture body 2 is to be adjusted, the knurled nut 13 can be turned in the free space 23 of the fastening part 12. However, such an adjustment operation can only take place when the running rail 6 is arranged in an at least slightly open position, since, according to fig. 2, in the retracted position of the pull-out guide, the knurled nut is arranged hidden between the running rail 6 and the guide rail 5.

In fig. 7, similar to fig. 6, the maximum retracted position of the connecting member 11 in the fastening member 12 is shown. By turning the knurled nut 13, the threaded rod 14 can be moved so as to move the connection part 11 with respect to the tightening part 12, as shown in fig. 8. The threaded rod 14 has been moved together with the connecting part 11 in the longitudinal direction of the running rail 6, so that the position of the drawer 4 relative to the furniture carcass 2 is adjusted. If the knurled nut 13 is turned further, the connecting part 11 can be moved further away from the tightening part 12, as shown in fig. 9. The drawer can then be moved further away from the furniture carcass 2, wherein in the position shown in fig. 9 the projection 26 has reached the stop of the opening 25. Even in this position, the connecting member 11 is stably held on the fastening member 12 via the guide rod 15.

In the embodiment shown, the threaded rod 14 is integrally formed on the connecting part 11. It is of course also possible to form a threaded rod on the fastening part 12, to which a knurled nut is then screwed, which is arranged on the connecting part 11.

The pull-out guide 3 may comprise a self-closing device, not shown here, with a guide element for a drive which may be coupled to an actuator fixed to one of the rails. The drive may be biased to a retracted position via an accumulator to maintain the drawer system in a closed position via coupling with the actuator. The self-closing mechanism may further comprise a damper for braking the drawer system during the closing movement. Optionally, another or additional drive mechanism (e.g., ejector device 9) may be provided on the pull-out guide 3.

List of reference numerals

1 furniture

2 furniture main body

3 pull-out guide

4 drawer

5 guide rail

6 running rail

7 hook

8 starter

9 ejector device

10 mounting device

11 connecting part

12 fastening member

13 knurled nut

14 threaded rod

15 guide rod

16 guide channel

17 latch tab

18 receiving part

19 Collar

20 accommodating part

21 end portion

22 holes

23 free space for knurled nut

24 shaped body

25 opening

26 projection

40 latch opening

50 middle rail

90 outer casing

91 driver

92 cylinder.

Claims

1. A pull-out guide (3) having a fixed guide rail (5) and a running rail (6) which can be moved relative to the guide rail (5), wherein an intermediate rail (50) can optionally be provided between the running rail (6) and the guide rail (5), wherein a fastening part (12) is fixed to the running rail (6) at a front end section of the running rail (6) or in a front end section of the running rail, a connecting part (11) for fixing a drawer system (4) being arranged on the fastening part (12), characterized in that the connecting part (11) is held adjustably relative to the fastening part (12) in the longitudinal direction of the running rail (6), wherein at least two spaced-apart fastening means (17, 40) are provided on the connecting part (11), by means of which fastening means at least two different types of drawer systems (4) can be fixed to the pull-out guide (3) .

2. Pull-out guide according to claim 1, characterised in that guiding means are formed on the fastening part (12) and the connecting part (11) for linear guiding of the connecting part (11) during adjustment.

3. Pull-out guide according to claim 1 or 2, characterised in that the adjusting means (13, 14) are provided for stepless adjustment of the connecting part (11).

4. Pull-out guide according to claim 3, characterized in that the adjustment means comprise a rotatable knurled nut (13).

5. Pull-out guide according to any one of the preceding claims, characterized in that the at least two fastening means (17, 40) are arranged on different, in particular opposite, sides of the connecting part (11).

6. Pull-out guide according to any one of the preceding claims, characterized in that at least one of the at least two fastening means (17, 40) comprises a latch opening (40) or a latch projection (17) or a rack or a clamping surface.

7. Pull-out guide according to any one of the preceding claims, wherein the at least two fastening means are designed differently.

8. Pull-out guide according to any one of the preceding claims, characterized in that the fastening part (12) is designed as a plug which is inserted into an end section of the running rail (6).

9. Pull-out guide according to any one of the preceding claims, characterized in that a thread (14) is arranged on the connecting part (11).

10. Pull-out guide according to any one of the preceding claims, characterised in that the connecting part (11) has a guide rod (15) which engages in a guide channel (16) and a cavity in the running rail (6).

11. Pull-out guide according to any one of the preceding claims, characterised in that the running rail (6) is substantially U-shaped in cross section with a slot between two legs, and that the adjusting means (13, 14) are arranged at least partly outside the hollow chamber of the running rail (6) adjacent to the slot.

12. Pull-out guide according to any one of the preceding claims, characterized in that in the retracted position of the pull-out guide (3) the adjusting means (13, 14) are covered by the guide rail (5).

13. Pull-out guide according to any one of the preceding claims, characterized in that the connecting part (11) has an integrally formed protruding latching projection (17) for fixing the drawer (4).

14. Pull-out guide according to any one of the preceding claims, characterized in that an ejector device (9) is fixed to the guide rail (5) and has a drive (91) which is prestressed via an accumulator and via which the running rail (6) can be ejected in the opening direction after the ejector device (9) has been unlocked.

15. An item of furniture (1) or an electric household appliance having a main body (2) to which a pull-out guide (3) according to any one of the preceding claims is fixed, on which a drawer (4) is movably retained.