WO2013041476A1

WO2013041476A1 - Retraction device for installing in a pull-out guide

Info

Publication number: WO2013041476A1
Application number: PCT/EP2012/068218
Authority: WO
Inventors: Stefan Rüter; Rainer Weichelt; Andreas Hoffmann; Volker Rocklage; Jens Heidemann
Original assignee: Paul Hettich Gmbh & Co. Kg
Priority date: 2011-09-21
Filing date: 2012-09-17
Publication date: 2013-03-28
Also published as: DE102011053840A1; DE102011053840B4; CN103917132B; CN103917132A; AT517064B1; AT517064A5

Abstract

What is described is a retraction device 5 for installing in a pull-out guide comprising a fixable guide rail 2, a running rail 3 which can be coupled to a pull-out element and, if appropriate, at least one pull-out-extending central rail 4 arranged between guide rail 2 and running rail 3, wherein the retraction device 5 has a housing 6 with a driver 8 which is guided therein and connected to an energy store 7 and controlled by an activator 30, which driver, with the energy store 7 partially tensioned or relieved of tension, adopts a retraction position and can be displaced out of this position into a pretensioning position by the activator 30 with simultaneous tensioning of the energy store 7, in which pretensioning position the driver 8 is fixed and separated from the activator 30, which unlocks the driver 8 during displacement in the direction of the pretensioning position, wherein a guide groove 10 which is angled at the end and intended for guiding and controlling the driver 8 is provided in a housing wall 11, in which retraction device the driver 8 has at its side remote from the guide groove 10 a guide slot 18 in which there engages a guide web 19 connected to the corresponding housing wall 20.

Description

Feeding device for installation in a drawer guide

The present invention relates to a collection device for installation in a drawer guide consisting of a fixable guide rail, a runner coupled with an extension element and possibly at least one arranged between the guide rail and running rail, aussverlängernden center rail, wherein the collection device a housing with a guided therein and connected to a power storage and controlled by an activator driver, which occupies a retracted position with partially tensioned or relaxed energy storage and is displaced out of this by the activator with simultaneous tension of the energy storage in a biasing position in which the driver is fixed and disconnected from the activator, which in displacement in Direction of Einzugsspositi- unlocked the driver, wherein in a housing wall an end angled guide groove for guiding and controlling the driver is provided.

Feeding devices of the generic type are known per se and ultimately serve to support the insertion of pull-out elements into their closed position in that, from a given insertion depth, the tensioned force store of such a pull-in device is released and the stored energy for safely retracting the pull-out element into the closed position is being used.

In collection devices of the generic type, ie in such collection devices that are to be integrated into a drawer guide, it is very much important that these collection devices are extremely compact and at the same time are relatively stable and resilient trained.

The present invention is based on the object to provide a collection device of the generic type, which is characterized on the one hand by an extremely compact design and on the other hand by a high stability and resilience.

The object is achieved in a generic collection device characterized in that the driver has on its side opposite the guide pins side a guide slot into which engages a connected to the corresponding housing wall guide web. The advantage of this design is that the housing of the feeder by the connection of the guide web experiences an extremely high stiffening and thus extremely resilient despite compact design.

A further improvement in the stability and rigidity of the housing is achieved if, according to a further development of the invention, the walls having the guide web and the walls provided with the guide groove are interconnected in the overlapping area of the angled end of the guide groove by side wall sections. This results in the front region of the feeder a cap-like conclusion of the housing with a high stabilizing effect, but without thereby increasing the dimensions of the housing. In a collection device of the type according to the invention, which is provided with a pneumatic or hydraulic damper whose longitudinal axis is centered to the guide groove and the piston rod is rotatably coupled in a receiving clamp of the driver is provided according to a further development of the invention that the Aufnahmekloben slightly into the Füh - Plunging rungsnut and the guide groove having housing wall is provided with a cutout, the depth of which corresponds to the degree to which the receiving clamp dips into the guide groove.

This ensures that the damper without protrusion over the housing can be built into this housing the compact design of the entire collection device is maintained and taken by the cutout with only a small material weakening in purchasing to the receiving clamp in the connecting region to the piston rod obstruction to move to its final position.

Due to the compact design, the housing of the retraction device can alternatively also be fixed to the running rail and the activator can be fixed to the guide rail, since no space outside the pull-out guide is required even by the moving together with the running rail housing.

Pull-out guides with feed mechanisms according to the invention are used where pull-out elements, for example drawers, food supports or armrests, are to be moved linearly; here, for example, furniture, Household appliances, laboratories and workshop equipment, vehicles, camping vehicles or ships.

Further features of the invention are the subject of further subclaims.

An embodiment of the invention is illustrated in the accompanying drawings and will be described in more detail below. Show it:

FIG. 1 shows a perspective view of a drawer slide with a feed device integrated in this pull-out guide;

Figure 2 is a view in the direction of arrow II in Figure 1 on an enlarged scale; a perspective view of the pullout guide in a view opposite to the view of Figure 1 viewing direction shown; the detail indicated in Figure 3 with IV detail in an enlarged view; a perspective view corresponding to Figure 3 in a different from Figure 3 shift position; the detail denoted by VI in Figure 5 enlarged view;

FIGS. 7a-7d are sectional views through a self-closing mechanism according to the invention in different displacement positions of a driver of the self-closing mechanism;

Figure 8 is an enlarged view of the designated in Figure 7c with VIII detail; FIG. 9 shows an enlarged view of the detail labeled IX in FIG. 7d;

Figure 10 is a perspective view of the self-feeder according to Figures 7 to 9; Figure 1 1 is an exploded view of the collection device according to Figure 10; Figure 12 is a partial view in the direction of arrow XII in Figure 10;

Figure 13 is a section along the line XIII in Figure 12, wherein the section is shown rotated by 90 °; Figure 14 is a section along the line XIV in Figure 13;

Figure 15 is a section along the line XV in Figure 13;

Figures 16a-d different views and perspective views of a

Driver of the collection device according to the invention.

In the drawings, reference numeral 1 generally designates a pullout guide for a pullout element, which comprises a guide rail 2 fixable to a stationary element, for example a furniture carcass, a runner rail 3 coupleable to a pullout element, for example a drawer, and an intermediate rail 4, optionally extending therebetween includes. As is made clear in particular by FIGS. 1 to 6, a collection device designated generally by the reference numeral 5 is mounted in a manner known per se between the guide rail 2 and the running rail 3.

The basic structure of the collection device 5 is known per se. The collection device 5 essentially comprises a housing 6 with a guided therein and connected to a force accumulator 7 driver 8, which is controllable via an activator 30 (see in particular Figure 4). The housing 6 is fixed to the guide rail 2. The driver 8 is equipped on one side with guide pins 9 which engage in a guide groove 10 of a housing wall 1 1 of the housing 6 and guided therein, in particular Figures 8 and 9 make clear that the guide groove 10 has an angled portion 10 a.

The driver 8 can in a known manner from a retraction position (corresponds to a drawer, for example, the fully in the furniture body a driven position of this drawer) are moved by engaging in a recess 12 activator 30 which is fixed to the running rail 3, with simultaneous tensioning of the energy accumulator 7 in the opening direction to a biasing position in which the driver 8 with its front guide pin 9 in the angled portion 10a of the guide groove 10 is moved. In this position, the driver 8 is tilted in an inclined position in which the activator 30 can leave the recess 12 of the driver 8, wherein the driver 8 is secured by the transfer of a guide pin 9 in the angled portion 10a against automatic retraction. If a pull-out element is moved back in the closing direction during a closing operation, the activator 30 abuts a wall 13 delimiting the cutout 12 of the catch 8 during the closing movement, as a result of which the catch 8 displaces into a tilting movement and the guide pin 9 located in the angled area 10a again is fed back into the elongate region of the guide groove 10. As a result, the driver 8 is released and can support the closing movement by the energy stored in the energy storage 7.

This basic procedure is known per se.

Parallel to the energy storage 7, a pneumatic or hydraulic damper 14 is disposed in the housing 6, the piston rod 15 in a

dome-shaped receiving pin 16 of the driver 8 is rotatably coupled. The longitudinal axis of the damper 14 and corresponding to the piston rod 15 does not run in the middle in projection to the guide groove 10, but at a distance a, which make especially the figures 13 and 14 clear. The receiving cam 16 is slightly immersed in the guide groove 10, which has a cutout 17 on the side adjacent to the projected longitudinal axis of the piston rod of the damper 14, so that the housing 6 th also narrow in its width held and the damper 14 without protrusion in the housing 6 can be installed and the receiving pin 16 does not collide in the process of the driver 8 with the housing 6. If the driver 8 is extended to its maximum position, i. tilted into an inclined position, the receiving pin 16 is in the extended portion 17 a of a free cut 17, the depth of which corresponds approximately to the extent to which the receiving pin 16 when tilting in the

Oblique position additionally deflects over the already introduced in the guide groove 10 free cut 17. Thus, the free longitudinal movement of the connection between the piston rod 15 and the driver 8 is ensured, without causing a lifting of the piston rod 15, that is without it being possible for the rotatably mounted end of the piston rod to deflect to the longitudinal axis of the damper 14.

As can also be seen from the drawings, the driver 8 is provided on its side opposite the guide pins 9 side with a guide slot 18. In this guide slot 18 is constantly engaged, i. over the maximum displacement of the driver 8 away, a guide web 19, which is made in one piece with that housing 20, which is opposite to the guide groove 10 having the housing wall 1 1 and thus significantly reinforced this housing 20. In addition, the two housing walls 1 1 and 20 over a certain portion of time by side wall portions 21 and 22 are firmly connected. In particular, by these side wall portions 21 and 22 results in conjunction with the integrally formed on the housing wall 20 guide web 19 overall very high stabilization and stiffening of the entire housing 6, so that despite high overall small and compact dimensions a highly resilient embodiment of a collection device 5 realized is.

As can be seen in particular from FIG. 4, an activator 30 is provided which is equipped with two activator tines 30a. These activator tines 30a are both in the proper course of the control of the driver 8 in the above-mentioned recess 12 a (see Figure 6).

Such a two-pronged embodiment of the activator 30, which is basically known, facilitates and makes possible in a simple manner the restoration of a proper interaction between the activator 30 and the driver 8, if it has to be fed by running in the driver 8 without inserting the activator 30 a misalignment of the driver 8 should have come relative to the activator 30.

Alternatively, it is also possible to design the activator one-armed and carry out the driver multi-toothed, which is already known in principle in the prior art. Corresponding embodiments are in this case advantageous insofar as the corresponding areas in the installed state are not readily accessible and thus an automatic troubleshooting in case of possible operating errors is practically necessary.

With particular reference to FIGS. 16a to 16d, it should be pointed out that the guide slot 18 is provided with an extension 18a, which makes it possible to tilt the carrier 8 with respect to the guide web 19 engaging in the guide slot 18, without any play between the guide slot 18 and Incidentally, the guide bar 19 must be selected to be unduly high.

Advantageously, and in particular also for cost reasons, both the housing 6 and the driver 8 can each be made in one piece from plastic.

The activator 30 may be attached separately as a shaped wire part or sheet metal part as a single part to the running rail 3 or be issued integrally from the running rail 3.

Of course, however, the choice of other materials is conceivable.

LIST OF REFERENCE NUMBERS

1 . pull-out guide

2. Guide rail

3rd track

4. middle rail

5. Feed device

6. Housing

7. Energy storage

8. driver

9. Guide pins

10. Guide groove

1 1. housing

12. recess

13. delimiting wall

14. Damper

15. Piston rod

16. Recording clamps

17. Free cut

17a extended area

18. Guide slot 18a extension

19. Guide bar

20. Housing wall

21. Sidewall portion

22. Sidewall section 30. Activator

30a. Aktivatorzinken

Claims

Expectations

Pull-in device (5) for installation in a pull-out guide consisting of a fixable guide rail (2), a running rail (3) that can be coupled to a pull-out element and, if necessary, at least one guide rail

(2) and running rail

(3) arranged, extension-lengthening middle rail (4), the retraction device (5) having a housing (6) with a driver (8) guided therein and connected to an energy accumulator (7) and controlled by an activator (30), which at partially tensioned or relaxed energy storage (7) assumes a retraction position and can be moved out of this by the activator (30) while simultaneously tensioning the energy storage (7) into a preload position in which the driver (8) is fixed and separated from the activator (30). , which unlocks the driver (8) when shifted in the direction of the retraction position, a guide groove (10) angled at the end being provided in a housing wall (1 1) for guiding and controlling the driver (8), characterized in that the driver (8 ) has a guide slot (18) on its side facing away from the guide groove (10), into which a with the corresponding

Housing wall (20) connected guide web (19) engages.

Retraction device according to claim 1, characterized in that the housing walls (1 1), (20) provided with the guide web (19) and the guide groove (10) in the area of coverage of the angled end (10a) of the guide groove (10) by side wall sections (21 ), (22) are connected to each other.

Retraction device according to claim 1 with a pneumatic or hydraulic damper (14), the longitudinal axis of which runs centrally to the guide groove (10) and the piston rod (15) of which is rotatably coupled in a receiving block (16) of the driver (8), characterized in that the receiving block (16) dips slightly into the guide groove (10) and the housing wall (1 1) having the guide groove (10) is provided with a free cut (17), the depth of which corresponds to the extent by which the receiving block (16) is inserted into the guide groove (10 ) immerses.

4. Retraction device according to claim 2 or 3, characterized in that the guide web (19) engages in its guide groove (18) over the entire possible displacement path of the driver (8).

5. Retraction device according to one of the preceding claims, characterized in that the guide groove (18) of the driver (8) has an extension (18a) which enables the driver (8) to be tilted.

6. Retraction device according to one of the preceding claims, characterized in that the activator (30) is equipped with two activator tines (30a).

7. Retraction device according to one of claims 1 to 5, characterized in that the activator (30) has an activator tine (30a) and a recess (12) of the driver (8), into which the activator (30) engages, per se is known to have multiple teeth.

8. Retraction device according to one of the preceding claims, characterized in that the housing (6) is made entirely in one piece from plastic.

9. Retraction device according to one of the preceding claims, characterized in that the driver (8) is made in one piece from plastic.

10. Retraction device according to one of the preceding claims, characterized in that the activator (30) is manufactured separately as an individual part and is fixed to the running rail (3) or is issued integrally from the running rail 3.