EP2855813B1 - Arrangement for moving a movable furniture part - Google Patents

Description

The invention relates to an arrangement for moving a movable furniture part, in particular a pivotally mounted about an axis furniture part, with at least one ejection device for ejecting the movable furniture part from a closed position to an open position, wherein the at least one ejection device comprises at least one energy storage, and a charging device for Loading the at least one energy storage by an opening or closing movement of the movable furniture part.

Such arrangements are e.g. from the applicant's application A 322/2012, which has an earlier priority date but has not yet been published. They have relatively complicated transmission mechanisms arranged between the at least one ejection device and the loading device for transmitting power during the loading of the at least one energy accumulator. Thus, e.g. Intermediate floors or deflection devices required that take up a lot of space. This is also unfavorable from an aesthetic point of view.

Other prior art defining fonts provide the WO 2012/000656 , the WO 2008/022673 and the DE 20 2010 008 134 represents.

Object of the present invention is to avoid the disadvantages described above and to provide a comparison with the prior art improved arrangement for moving a movable furniture part.

To solve this problem, the arrangement provides that between the at least one ejection device and the loading device is arranged at least one Bowden cable for transmitting power when loading the at least one force accumulator.

The term Bowden cable is a fixed term, which is defined eg by the DIN 71986. A person skilled in the art understands this to mean a movable machine element for transmitting a mechanical movement or a tensile force. Essentially, a Bowden cable consists of a so-called Bowden cable core (eg a steel wire or wire rope), which is surrounded by a flexible but pressure-tight shell in the pulling direction. The shell acts as a mechanical guide and as an abutment for the transmitted tensile forces, so that the Bowden cable can transmit forces via bends.

An advantage of the use of a Bowden cable in connection with the subject matter of the present invention is that it occupies relatively little space and can be laid flexibly. It is also possible to use it e.g. in a groove or the like to the outside "to hide".

According to an advantageous embodiment of the invention, it is provided that the loading device comprises at least one actuating body and at least one adjusting contour, wherein the at least one actuating body runs at least during a part of the opening or closing movement of the at least one control contour. Due to the interaction of the at least one adjusting body and the at least one adjusting contour different kinematic conditions can be achieved. In particular, it is also possible to realize a neutral region in which the at least one adjusting body and the at least one adjusting contour move relative to one another in such a way that the at least one energy store is essentially not charged. Another great advantage, which arises from the interaction of the at least one actuating body and the at least one control contour, is the fact that the transitions between charging and non-charging of the energy accumulator can be made very gentle.

Furthermore, it can preferably be provided that the at least one ejection device comprises at least one movable - preferably linearly movable - and by the at least one energy storage acted upon ejection element. It is advantageous if the at least one ejection device comprises at least one locking device for releasably locking the at least one ejection element against the action of the at least one energy accumulator. The locking device can be realized for example by means of a rocker arm. An alternative realization form of the locking device, which is not excluded from the idea of the invention, can also be based, for example, on a heart curve-shaped locking contour.

Protection is also desired for a piece of furniture with a furniture body, at least one furniture part movably mounted in or on the furniture body, and at least one arrangement according to the invention for moving the at least one furniture piece. This at least one furniture part can be either a furniture part which performs a rotary movement (this is the case for example with a furniture door or a furniture flap), as well as a furniture part which is translationally movable (for example a drawer).

The use of the arrangement according to the invention is particularly suitable for wall cabinets which have an outer support structure and an inner body that can be raised and lowered with respect to this support structure. Here, the at least one Bowden cable can be arranged with the inner body raised up substantially between the inner carcass and the furniture body, so that it is not visible to the outside.

Fig. 1

eine schematisch dargestellte Explosionsdarstellung eines Ausführungsbeispiels der erfindungsgemäßen Anordnung,

Fig. 2 - 6

die Abfolge mehrerer schematisch dargestellter Seitenansichten des Ausführungsbeispiels der erfindungsgemäßen Anordnung zur Illustration des Ausstoßvorgangs einer Möbelklappe sowie des sich daran anschließenden Ladevorgangs zum Laden des Kraftspeichers der Ausstoßvorrichtung, und

Fig. 7a - 7e

die Abfolge mehrerer schematisch dargestellter Querschnittsansichten der Ausstoßvorrichtung zur Illustration ihrer Wirkungsweise.

Further advantageous embodiments of the invention are defined in the dependent claims and together with further details and advantages of the invention in the context of the following description of the figures with reference to the figures. Showing:

Fig. 1

a schematically illustrated exploded view of an embodiment of the inventive arrangement,

Fig. 2-6

the sequence of several schematically illustrated side views of the embodiment of the inventive arrangement for illustrating the ejection process of a furniture flap and the subsequent charging process for loading the force accumulator of the ejection device, and

Fig. 7a - 7e

the sequence of several schematically illustrated cross-sectional views of the ejection device to illustrate their mode of action.

On the basis of in Fig. 1 can be seen that the ejection device 3 of the arrangement 1 comprises a movable, more precisely a linearly movable, and acted upon by a force accumulator 4 in the form of a spring ejection element 12, said ejection element 12 has two via a limited route 14 (cf. Fig. 7a to 7e ) against each other movable parts 15 and 16, and wherein between the two parts 15 and 16, a compression spring 17 is arranged. The ejection element 12 is arranged linearly displaceable in a cuboid housing 33. Another essential component of the ejection device 3 is a locking device 18 for releasable locking of the ejection element 12 against being acted upon by the force accumulator 4, wherein this locking device 18 is a locking device that can be released by overpressures against the ejection direction. The core element of the locking device 18 is a rocker arm 19, wherein this rocker arm 19 has a latching projection 20 on one arm and an inclined surface 21 on the other arm (cf. Fig. 7a to 7e ), and acted upon by a compression spring 22. The exact operation of the ejector 3 is based on the Fig. 7a to 7e explained in more detail.

Essential components of the loading device 5 for loading the force accumulator 4 of the ejection device 3 are a base plate 29, on which a setting contour 8 and a two-armed lever 10 are rotatably mounted. The corresponding axes of rotation are provided with the reference numerals 30 and 32, respectively. On one arm of the lever 10, a control body 7 is provided in the form of a pressure roller, said actuating body 7 runs on the control contour 8. A characteristic feature of the control contour 8 is a neutral section 9, in which the control element 7 and the control contour 8 move relative to one another such that the force accumulator 4 of the ejection device 3 is not charged (cf. Fig. 6 ).

For power transmission when loading the force accumulator 4 of the ejection device 3, a Bowden cable 6 is arranged between the ejection device 3 and the loading device 5. The Bowden cable 6 comprises a Bowden cable core 34, which is movably guided in a flexible outer shell 35. A first end 11 of the Bowden cable core 34 of the Bowden cable 6 is in operative connection with that arm of the two-armed lever 10, which does not have the adjusting body 7. The second end 13 of the Bowden cable core 34 of the Bowden cable 6 is connected to the rear part 16 of the ejection element of the ejection device 3.

Finally, the arrangement 1 comprises an actuator 23 for a furniture flap 2 (cf. Fig. 2 ), this actuator 23 on the one hand via a control arm 26 with the Furniture flap is connected and on the other hand with the charging device 5 is in operative connection. For this purpose, the base plate 29 is mounted laterally on the actuator 23. About a pin 31 is a movement coupling between the actuator arm 26 of the actuator 23 - and thus the furniture flap, which is connected to the actuator arm 26 - and the control contour 8 of the charging device 5 instead. The pin 31 is guided in guide tracks 27 and 28.

• In der Fig. 2 ist eine Seitenansicht eines schematisch dargestellten Möbels 24 zu sehen, wobei dieses Möbel 24 aus einem Möbelkorpus 25 und einem bewegbar daran gelagerten Möbelteil 2 in Form einer um eine horizontale Achse schwenkbar gelagerten Möbelklappe 2 besteht. Die Möbelklappe 2 ist aus zwei übereinander angeordneten und über Scharniere (nicht dargestellt) miteinander verbundenen Teilklappen aufgebaut. Die obere Teilklappe ist einerseits über Scharniere (nicht dargestellt) an den Möbelkorpus angelenkt und andererseits mit dem Stellarm 26 des Stellantriebs 23 verbunden. Im geschlossenen Zustand der Möbelklappe 2 liegt die untere Teilklappe lose an einer Kontaktfläche des vorderen Teils 15 des Ausstoßelements an, wobei das Ausstoßelement in diesem Zustand entgegen der Beaufschlagung durch den Kraftspeicher 4 über die vorbeschriebene Verriegelungsvorrichtung lösbar verriegelt ist.

The mode of operation of the preferred exemplary embodiment of the arrangement according to the invention will now be explained in more detail with reference to the further figures:

• In the Fig. 2 is to see a side view of a schematically illustrated cabinet 24, said furniture 24 consists of a furniture body 25 and a movably mounted thereon furniture part 2 in the form of a pivotable about a horizontal axis mounted furniture flap 2. The furniture flap 2 is constructed of two superimposed and hinges (not shown) interconnected part flaps. The upper part flap is hinged on the one hand via hinges (not shown) to the furniture body and on the other hand connected to the actuating arm 26 of the actuator 23. In the closed state of the furniture flap 2, the lower part flap is loosely against a contact surface of the front part 15 of the ejection element, wherein the ejection element is releasably locked in this state against the action of the force storage device 4 via the above-described locking device.

Another great advantage of the present invention is that it is possible by means of the arrangement according to the invention to design the movable furniture part 2 without a handle. To open a user only a slight pressure on the front of the furniture part 2, in this case on the lower part of the folding flap flap exercise, whereby the ejection element of the ejection device is unlocked and the furniture part 2 so far pushes that the user the furniture flap 2 to the other Opening can comfortably reach behind. The initialization of this ejection movement is in the Figure 3 shown. By exerted on the lower part of the flap slight pressure (indicated by an arrow), the ejection element is suppressed, that is, in the direction of the action of the compression spring 4 opposite direction moves. As a result, the rocker arm 19 of the locking device is unlocked (cf. Fig. 7b ).

Subsequently (cf. Fig. 4 ), the stored energy in the energy storage 4 is released and thereby the ejection element of the ejection device 3 is ejected. Since the front part 15 of the ejection element bears against the folding flap, it moves it from the closed position into an open position.

As already in the course of the description of the Fig. 1 executed, the second end of the Bowden cable core 34 of the Bowden cable 6 is connected to the rear part 16 of the ejection element. This has the consequence that in the ejection movement, the Bowden cable core 34 is pulled through the flexible outer shell 35 a piece. This can be seen, for example, from the fact that the first end 11 of the Bowden cable core 34 of the Bowden cable 6 has moved downwards.

In the course of the ejection movement, the folding flap 2 was moved away from the furniture body 25 (typically 5 to 10 cm) so that the user can now easily grasp the folding flap and continue to open it manually (cf. Fig. 5 ). The actuator 23, softer connected to the flap 2, serves the purpose of compensating the weight of the furniture flap in any position. This means that the folding flap can be held in any position without falling back.

From a comparison of Fig. 4 with the Fig. 5 It will be seen that the adjusting contour 8 rotates in the opening direction in the clockwise direction during the pivoting movement of the folding flap 2. Due to its special shape, the adjusting contour 8 forces the two-armed lever 10 to execute an evasive rotational movement in the opposite direction of rotation. As a result, the first end 11 of the Bowden cable core 34 of the Bowden cable 6 is pulled upward as a result. In addition, it should be noted that the two arms of the two-armed lever 10 have different lengths, resulting in a favorable balance of power.

Characterized in that is pulled at the first end 11 of the Bowden cable 34 of the Bowden cable 6, the second end 13 of the Bowden cable core 34 of the Bowden cable 6 and thus the ejection element of the ejector 3 moves in the direction of the original position (see. Fig. 2 ) back. At the same time, the compression spring 4 clamped firmly between the rear part 16 of the ejection element and the housing 33 of the ejection device 3 is charged. Overall, therefore, a part of the User for opening the folding flap 2 applied force to load the force accumulator 4 of the ejector 3 is used. The transmission of this partial force takes place by means of the Bowden cable. 6

The charging of the energy accumulator 4 takes place until the ejection element has again reached its locking position. At this time, the pressure roller 7 is located at the point 36 of the control contour 8 (see. Fig. 6 ). At the same time the folding flap 2 takes a middle position between the closed position (see. Fig. 2 ) and the fully open position (see. Fig. 6 ) one. In the further opening movement of the folding flap 2 of the energy storage 4 is not charged further. This is achieved by arranging on the control contour 8 a neutral section 9 which is designed in such a way that the distance of the circumferential surface from the pivot point 30 between the points 36 and 37 does not increase any further. In a further rotational movement of the control contour 8, therefore, does not change the position of the two-armed lever 10th

When closing the folding flap 2, the control contour 8 and the lever 10 perform - in contrast to the opening of the folding flap - opposite movements. However, the first end 11 of the Bowden cable core 34 of the Bowden cable 6 remains in its position because the ejection element is locked.

The Fig. 7a to 7e show a sequence of schematically illustrated cross-sectional views of the ejector 3. It is in the Fig. 7a and 7e to see that state of the ejection device 3 in which the ejection element is locked. The Fig. 7b to 7d those states of the ejection device 3, which they are in the Fig. 3 to 5 occupies.

The locking of the ejection element of the ejection device 3 takes place thereby (cf. Fig. 7a to 7e ) that the right arm of the rear part 16 of the ejection element about the rotation axis 38 rotatably mounted rocker arm 19 via the compression spring 22 with the locking projection 20 is positively pressed against a corresponding edge 39 which is located on the housing 33 of the ejection device 3.

The unlocking takes place thereby (see. Fig. 7b ) that the front part 15 of the ejection element over the distance 14 against the action of the between the parts 15 and 16 arranged compression spring 17 is moved to the rear part 16. At the front part 15 of the ejection element, an inclined surface is arranged (see also Fig. 1 ), which abuts in the course of the unlocking movement to a corresponding inclined surface 21 which is arranged on the second, not the locking projection 20 having, arm of the rocker arm 19. As a result, the oblique surface 21 having arm of the rocker arm 19 down and the opposite arm is moved against the action of the compression spring 22 upwards, and indeed until the locking projection 20 has overcome the arranged on the housing 33 edge 39. Now, the ejection element can move unhindered under the released energy of the energy accumulator 4 in the ejection direction (see. Fig. 7c ).

During the charging process (cf. Fig. 7a ), the ejection element is pulled by the Bowden cable 6 again in the direction of its original position, to the extent that the latching projection 20 having arm of the rocker arm 19 can move under the action of the compression spring 22 back into the locking position.

Claims (15)

1. An arrangement (1) for moving a moveable furniture part (2), in particular a furniture part mounted pivotably about an axis, comprising

   - at least one ejection device (3) for ejecting the moveable furniture part (2) from a closed position into an open position, wherein the at least one ejection device (3) includes at least one force storage means (4), and

   - a loading device (5) for loading the at least one force storage means (4) by

   an opening or closing movement of the moveable furniture part (2), characterized in that at least one Bowden cable (6) for transmitting force upon loading of the at least one force storage means (4) is arranged between the at least one ejection device (3) and the loading device (5).
2. The arrangement (1) as set forth in claim 1, characterized in that the loading device (5) includes at least one adjusting body (7) and at least one adjusting contour (8), wherein the at least one adjusting body (7) runs against the at least one adjusting contour (8) at least during a part of the opening or closing movement.
3. The arrangement (1) as set forth in claim 2, characterized in that the at least one adjusting contour (8) has at least one neutral portion (9) in which the at least one adjusting body (7) and the at least one adjusting contour (8) move relative to each other without loading the at least one force storage means (4).
4. The arrangement (1) as set forth in claim 2 or claim 3, characterized in that the loading device (5) has a rotatably mounted double-armed lever (10), wherein the at least one adjusting body (7) is arranged on an arm of the lever (10) and the other arm of the lever (10) is operatively connected to a first end (11) of the at least one Bowden cable (6).
5. The arrangement (1) as set forth in one of claims 2 through 4, characterized in that the at least one adjusting body (7) is in the form of a rolling body - preferably in the form of a pressure roller- or in the form of a sliding body.
6. The arrangement (1) as set forth in one of claims 1 through 5, characterized in that the at least one force storage means (4) includes at least one spring.
7. The arrangement (1) as set forth in one of claims 1 through 6, characterized in that the at least one ejection device (3) includes at least one moveable - preferably linearly displaceable - ejection element (12) which can be acted upon by the at least one force storage means (4).
8. The arrangement (1) as set forth in claim 7, characterized in that the second end (13) of the at least one Bowden cable (6) is connected to the at least one ejection element (12).
9. The arrangement (1) as set forth in claim 7 or claim 8, characterized in that the at least one ejection element (12) has at least two parts (15, 16) which are moveable relative to each other over a limited distance (14), wherein preferably at least one spring (17) is arranged between the two parts (15, 16).
10. The arrangement (1) as set forth in one of claims 7 through 9, characterized in that the at least one ejection device (3) includes at least one locking device (18) for releasably locking the at least one ejection element (12) against action thereon by the at least one force storage means (4), wherein preferably the at least one locking device (18) is a locking device releasable by over-pressing in opposition to the ejection direction.
11. The arrangement (1) as set forth in claim 10, characterized in that the at least one locking device (18) includes at least one tilting lever (19).
12. The arrangement (1) as set forth in claim 11, characterized in that the at least one tilting lever (19)

    - has a latching projection (20),

    - has a inclined surface (21), and/or

    - is acted upon by at least one spring (22).
13. The arrangement (1) as set forth in one of claims 1 through 12, characterized in that the arrangement (1) includes at least one adjusting drive (23) for the moveable furniture part (2), wherein the at least one adjusting drive (23) is operatively connected to the loading device (5).
14. An article of furniture (24) comprising a furniture carcass (25) and at least one furniture part (2) mounted moveably in or on the furniture carcass (25), characterized in that the article (24) includes at least one arrangement (1) as set forth in one of claims 1 through 13 for moving the at least one furniture part (2), wherein preferably the at least one furniture part (2) is mounted pivotably about a - preferably horizontal - axis.
15. The article of furniture (24) as set forth in claim 14, characterized in that the article of furniture (24) has an inner carcass which can be moved up and down in relation to the furniture carcass (25) and the at least one Bowden cable (6) is arranged when the inner carcass is moved upwardly substantially between the inner carcass and the furniture carcass (25).

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