WO2006097413A1

WO2006097413A1 - Automatic retracting device for a movable furniture element

Info

Publication number: WO2006097413A1
Application number: PCT/EP2006/060483
Authority: WO
Inventors: Frank Nuttelmann
Original assignee: Hettich-Heinze Gmbh & Co. Kg
Priority date: 2005-03-17
Filing date: 2006-03-06
Publication date: 2006-09-21
Also published as: RU2007137459A; ATE529018T1; ES2375300T3; RU2386378C2; CN101141901B; EP1858370A1; DE202005004336U1; EP1858370B1; CN101141901A

Abstract

The invention relates to an automatic retracing device (1) for a movable furniture element such as sliding doors (40), foldable doors and the similar comprising a modular unit (2) consisting of an energy storage (2a) which is prestressable when said movable furniture element (40) is opened and whose stored energy is used as assisting means in the case of moving into a final closing position and a slider displaceable in parallel with the movable furniture element (40), connected to the energy storage (2a) and comprising an actuator (2c) which is coupled with the movable furniture element (40) to a predefined opening position, is automatically deconnectable when said position is reached and locks the energy storage (2a) in said position. The inventive modular unit (2) is fixed in a housing (4) inside of which an adapter (3) connectable to the actuator (2c) of the modular unit (2) is longitudinally displaceable and is provided with a flexible coupling section for a drive (5) fixed to the movable furniture element (40).

Description

Self-closing device for movable furniture parts

The present invention relates to a self-retracting device for movable furniture parts such as sliding doors, folding sliding doors, cabinet drawer or the like, with a unit from a power storage-tense when opening the movable furniture part and the stored power is used during the closing process as Einziehshilfe in the final closed position and a parallel movable to the movable furniture part and connected to the power storage slide with an activator which is coupled to a predetermined opening position with the movable furniture part and automatically decoupled after exceeding the said specific opening position and blocked in this position the tensioned energy storage.

Self-closing devices of the generic type are known in many embodiments for different purposes. So there are self-closing devices with the aforementioned basic structure especially for drawers that are installed in the area of the guides of such drawers. These known self-closing devices are designed to save space and the correspondingly small-sized activator of such units is used for coupling with a provided on a movable furniture part driver. Since relatively narrow tolerances can be met with drawers or similar movable furniture parts, the entire assembly including driver can also be designed relatively small and tuned to small tolerances.

There are also self-closing devices of the generic type are known, which are designed for larger tolerances and overall have larger dimensions than the units described above. These relatively large and correspondingly large tolerances bridging self-closing devices are designed especially for moving furniture parts such as sliding doors, folding sliding doors, cabinet drawer or the like.

The present invention has for its object to provide a self-closing device of the generic type, despite the small size and Dimensions is able to bridge relatively rough tolerances, especially in moving furniture parts such as sliding doors, folding sliding doors, cabinet extensions or the like. This should be possible in the production program existing self-closing devices application.

This object is achieved in that the assembly is set in a housing within which a couplable with the activator of the assembly adapter is longitudinally displaceable having a flexible coupling portion for a fixed to the movable furniture part driver.

Such a construction combines the advantages of a relatively small structural unit with the possibility of bridging relatively large tolerances, which can be achieved by the fact that the adapter can be designed relatively insensitive to deviations in the installation area, especially in the region of its coupling portion. In addition, this concept allows the use of existing units.

According to an advantageous embodiment of the invention it is provided that the assembly comprises a damper, which is also connected to the slide and by means of which shortly before reaching the final closed position, one of the direction of the closing forces counteracting and the closing movement damping counterforce is applied.

The main advantage of the invention as a whole is that compact, known units of Selbsteinzugsvorrichtungen-if necessary, combined with damper for drawers or the like with these units ultimately not unduly enlarge, but large installation tolerances Ü bridging adapters, which are for coupling with a movable Furniture element such as a sliding door, a folding sliding door, a cabinet drawer or the like may be needed.

Further features of the invention are the subject of dependent claims. Embodiments of the invention are illustrated in the accompanying drawings and will be described in more detail below.

Show it:

Figure 1 is a perspective exploded partial view of a Selbsteinzugsvorrichtung invention

Figures 2a to 2d different views of an adapter of the self-closing device shown in Figure 1

Figures 3 a to 3e different views of a movably mounted insert of the adapter of Figures 2a to 2d

Figures 4 and 5 alternative embodiments of an insert for an adapter

Figures 6 to 8 schematically illustrated partial top views of a sliding door cabinet with two sliding doors

Figure 9 is an enlarged view of the left half of the figure

7

Figure 10 is a representation corresponding to Figure 9 with the housing open a self-closing device

Figures Ha u. 11a and 12a to 12c show different views of two housing halves of the self-closing device

Figures 13 to 16 schematically illustrated plan views of a self-closing device on the example of a sliding door during different phases when opening the open from the closed position sliding door Figures 17 and 18 are schematic plan views of a Selbsteinzugsvorrichtung to illustrate a guaranteed misuse safety device

In Figure 1, a generally designated by the reference numeral 1 Selbsteinzugsvorrichtung is shown, which comprises a known per se, commercially available unit 2 from a force storage 2a and a damper 2b and a cooperating adapter 3, wherein the assembly 2 and the adapter 3 in a housing 4 are arranged, of which only one housing half 4a is shown in FIG. 1 for the sake of consideration.

The aforementioned assembly 2 is characterized by a particularly slim and so far space-saving design and has been mainly used as a self-closing device for drawers, which are guided longitudinally displaceable in a relatively tightly tolerated guide rails within a furniture body.

Although the unit 2 is known per se, its operation in the following will be discussed briefly.

The energy storage device 2a, like the damper 2b, is connected at one of its ends to a slide (not shown) with which an activator 2c is rotatably connected. The activator 2c can be coupled to a movable furniture part (drawer or the like), so that when the moving furniture part is moved out of its closed position, the energy store 2a is tensioned. After a certain opening movement, the coupling between the activator 2c and the movable furniture part is canceled by the fact that the activator 2c is tilted out of the coupling area to the movable furniture part via a slotted guide 2d. In this position, then the fully tensioned energy storage 2a is fixed. If the movable furniture part moved back into its closed position, the coupling between the movable furniture part and the activator 2c is restored, so that now the stored force of the energy storage 2a can be used as Einziehhilfilfe the movable furniture part in its final closed position. At the same tig but it is also applied to the damper 2b in such a way that by the damper 2b just before reaching the final closed position one of the direction of the closing forces counteracting and the closing movement damping counterforce is applied.

In the construction according to the invention of the self-closing device 1, the assembly 2 is fixed, for example, by a clip connection in the housing 4. The adapter 3 is mounted longitudinally displaceably within the housing 4 and can be coupled to the activator 2c via a projection 3a engaging in the activator 2c.

On its the projection 3 a opposite side of the adapter 3 is equipped with a mouth 3b in which a on a movable furniture part such. B. a sliding door 40 fastened driver (Figure 6 to 8) 5 can intervene. This mouth 3b is limited in the direction of displacement of the adapter 3 on the one hand by a beyond the adapter 3 in the other protruding flange 3 c and on the other hand by a likewise beyond the adapter 3 in the other protruding hump-like projection 6a of a pivotally mounted in the adapter 3 insert 6, the is constantly loaded by a spring element 7 in Ausschwenkrichtung.

The insert 6 is equipped with laterally projecting guide cam 6b, which are guided in guide grooves 4b of the housing halves 4a. These guide grooves 4b have a region inclined with respect to the direction of displacement, so that the insert 6, as soon as the guide cams 6b move in this inclined region of the guide grooves 4b, are swiveled in the direction of the adapter 3, whereby the hump-like projection 6a of this insert 6 moves out of the Engagement region of a driver 5 is pivoted to a sliding door 40. The sliding door 40 can thus be opened further, without causing a further displacement of the adapter 3 and thus also of the coupled with the adapter 3 activator 2 c of the energy storage device 2 a. This is of course a prerequisite that the guide grooves 4b of the housing halves 4a are designed so that the complete swinging out of the hump-like projection 6a of the insert 6 is completed when the activator 2c is moved in its the energy storage 2a in the tensioned state locking end portion of the slotted guide 2d , These sequences are shown in FIGS. 13 to 16, wherein FIGS. 13b to 16b respectively show, in a schematic representation, the guide grooves 4b with the guide cam 6b running therein in the respective positions.

If a correspondingly wide open sliding door 40 is now moved back into its closed position, the driver 5 detects shortly before reaching the final closed position the flange 3c of the adapter 3 and takes this adapter 3 with. (Figure 15). Immediately, of course, on the coupling of the adapter 3 with the activator 2c of the energy storage device 2a this released, so that the stored force of the energy storage device 2a is available as an insertion aid for the closing movement.

During the backward movement of the adapter 3 in the direction of the closed position, the insert 6 is then again swiveled so far in relation to the adapter 3 that the hump-like projection 6a lies behind the driver 5 of the sliding door 40 lying against the flange 3c. It is thus ensured again a complete coupling between the adapter 3 and the driver 5. (Figures 14 and 15).

In other words, the adapter 3 with its insert 6 serves to indirectly couple the structural unit 2 to a sliding door 40, the advantage of this indirect coupling being that the coupling elements (driver 5 on the one hand and adapter 3 with its mouth 3b on the other) are so can be generously dimensioned that even large tolerances can be bridged and larger forces (heavy furniture elements) can be accommodated.

If the insert 3 is in its basic position, which can be seen, for example, from FIG. 2b, the guide pins 6b lie in the region of guide groove sections 4c of the guide grooves 4b of the housing halves 4a, which extend approximately at right angles to the direction of displacement. As a result, the insert 6 can move against the action of the spring element 7 from the side of FIG Sliding door 40 seen from the adapter 3 are pressed. This results in the advantageous possibility of an incorrect operation assurance to the effect that in the case of incorrect operation by sliding a sliding door 40 into the closed position of the insert 6 by running on the trailing edge 6c the driver 5 is pressed down and after driving over the hump-like projection 6a again completely coupled to the driver 5, since then by the action of the spring element 7 of the insert 6 pivots outwards again and completes the mouth 3b, in which Driver 5 is then coupled again. The described operation of the incorrect operation safety can especially after installation of the furniture parts, eg. As the sliding doors, carrier 5 and mouth 3b bring in the necessary for functioning position.

These processes are shown in FIGS. 17 and 18.

FIGS. 13 to 16 very clearly show the functional sequences when opening a sliding door 40 from the completely closed position. This complete closed position is shown in Figure 13a and b. The driver 5 engages in the mouth 3b of the adapter 3 and here is symbolically represented by the sliding door 40. If now the sliding door 40 is moved in the opening direction, the energy storage device 2a is increasingly stretched with increasing opening travel. FIG. 14 shows by way of example that, after a certain opening movement, the adapter 3 and in particular the guide cams 6b of the insert 6 move into the chamfered region of the guide grooves 4b. Until just before dipping the guide cam 6b in this tapered portion of the guide grooves 4b is still full engagement between the driver 5 and the adapter. 3

If now an even further displacement of the sliding door 40 is performed in the opening direction, the insert 6 is completely pivoted out of the engagement region of the driver 5, so that now no more entrainment takes place between the sliding door 40 and the adapter 3 or is possible. This position results from FIG. 16. In this displacement position of the adapter 3, the activator 2c of the energy accumulator 2a is pivoted into its secured position and thus the energy accumulator 2a is permanently tensioned. Only by moving the sliding door 40 back in the closing direction does it again come to a contact between the driver 5 and the flange 3c of the adapter 3 and thus to a driving of the adapter 3 in the closing direction. This is about the coupling between the adapter 3 and the activator 2c of the energy storage 2a of this energy storage 2a released and provided its stored power as an insertion aid for the sliding door.

The drawings make it clear that the mouth 3b of the adapter 3 is offset from the activator 2c clearly in the closing direction, d. H. the adapter 3 is not rectified in the sense of an extension to the Selbsteinzug- damper device (1, 2, 2a, 2b) arranged, but backward in terms of shortening, with the mentioned advantage of a small Öffnungsver- lossest and the advantage of space-saving, compact design of the housing 4. This results in the advantage of an extremely small loss of opening when opening the sliding doors 40 which results from Figures 6 to 8, but in particular Figures 6 and 7.

The already mentioned bevelled area of the guide grooves 4b has a resilient constriction (FIG. 12c), which allows the guide cams 6b of the insert 6 to pass only with a certain amount of force. This prevents that the insert 6 can be moved back unintentionally in the closing direction by shaking movements on a corresponding cabinet furniture or by other external forces when the sliding door 40 is open.

FIGS. 4 and 5 show various alternatives for the design of the adapter 3 and / or the insert 6 provided there.

Thus, the insert 6 with the adapter 3 may well be made in one piece or the insert 6 may be designed in the form of a single or double-layered leaf spring, as shown in Figure 4. Likewise, provided for the pivoting of the insert 6 spring element 7 may be integrally formed on the insert 6.

If an increased closing force is required, two units 2 with corresponding dampers and force accumulators can be used in a housing 4, which are assembled, for example, a mirror image without the advantages of the basic construction-as described above-lost.

Claims

claims

1. Selbsteinzugsvorrichtung (1) for movable furniture parts such as sliding doors (40), folding sliding doors or the like, with a structural unit (2) from a power storage (2a) -der when opening the movable furniture part (40) stretched and its stored force during the closing process as Einziehshilfe is used in the final closed position and a parallel to the movable furniture part (40) displaceable and with the energy storage device (2a) connected slide with an activator (2c), which coupled to a predetermined opening position with the movable furniture part (40) and after exceeding said particular opening position is automatically decoupled and blocked in this position the tensioned energy storage device (2a), characterized in that the structural unit (2) in a housing (4) is fixed, within which one with the activator (2c) of the assembly (2 ) couplable adapter (3) is arranged longitudinally displaceable, which has a flexible Kopplungsabsc Having cut for a on the movable furniture part (40) fixed driver (5).

2. Selbsteinzugsvorrichtung according to claim 1, characterized in that the structural unit (2) has a damper (2b) which is also connected to the slide and by means of which, shortly before reaching the final closed position one of the direction of the closing forces counteracting and the closing movement damping counterforce is applied.

3. Selbsteinzugsvorrichtung according to claim 1, characterized in that the coupling portion of the adapter (3) by a mouth (3b) is formed which is limited in the direction of displacement of the movable furniture part (40) on the one hand by a projecting flange (3c) of the adapter (3 On the other hand, by a hump-like projection (6a) of an insert (6) within the adapter (3), wherein both the flange (3c) and the hump-like projection (6a) on the adapter (3) in the remaining direction in the direction of the movable furniture part (4) project.

4. Selbsteinzugsvorrichtung according to claim 1 or 2, characterized in that the coupling region or the mouth (3b) relative to the activator (2c) of the assembly (2) is arranged offset in the closing direction of the movable furniture part (40).

5. Selbsteinzugsvorrichtung according to any one of the preceding claims, characterized in that the insert (6) counter to the action of a spring element (7) in the adapter (3) is pivotable into that a driver (5) of the movable furniture part (40) from Adapter (3) is separable.

6. Selbsteinzugsvorrichtung according to any one of the preceding claims, characterized in that the insert (6) with guide cam (6 b) is provided, which are guided within guide grooves (4 b) of the housing (4), wherein the guide grooves (4 b) opposite to the Displacement direction of the movable furniture part (40) have chamfered extending portion, so that the insert (6) with its hump-like projection (6a) when passing this Führungsnutabschnittes from the engagement region of a driver (5) is moved out.

7. Selbsteinzugsvorrichtung according to any one of the preceding claims, characterized in that the guide cam (6b) in befindlichem in normal position insert (6) in the range of approximately perpendicular to the direction of displacement of the movable furniture part (40) Führungsnutabschnitten (4c).

8. Selbsteinzugsvorrichtung according to any one of the preceding claims, characterized in that the beveled extending portion of the guide grooves (4b) has resilient portions through which the guide cam (6b) are movable only with a certain amount of force.

9. Selbsteinzugsvorrichtung according to any one of the preceding claims, characterized in that the insert (6) is made in one piece with the adapter (3) in the rest.

10. Selbsteinzugsvorrichtung according to any one of the preceding claims, characterized in that the insert (6) consists of a single-layer or multilayer leaf spring.

11. Selbsteinzugsvorrichtung according to any one of the preceding claims, characterized in that the spring element (7) is made in one piece with the insert (6) in the rest.

12. Selbsteinzugsvorrichtung according to any one of the preceding claims, characterized in that the structural unit (2) within the housing (4) is fixed by clip connections.

13. Selbsteinzugsvorrichtung according to any one of the preceding claims, characterized in that within a housing (4) two units (2), each with an adapter (3) are arranged.

14. Selbsteinzugsvorrichtung according to any one of the preceding claims, characterized in that the hump-like projection (6 a) of the insert (6) on its the flange (3 c) of the adapter (3) opposite back with a sloping back edge (6 c) is provided ,

15. Self-closing device according to one of the preceding claims, characterized in that each housing half (4a) has mirror-inverted units (2) and adapter (3).