AT511546B1 - FURNITURE DRIVE FOR A MOVABLE FURNITURE FLAP - Google Patents

Abstract

Furniture drive (51) for a movable furniture flap (11), with a with the furniture flap (11) connectable actuating arm (52), the actuating arm (52) kraftbeaufschlagenden main spring (59), a lockable opening device (10) for moving the furniture flap (11 ) from a closed position (SS) in an open position (OS), wherein the opening device (10) from the main spring (59) separate opening spring (12), a locking device (17) for locking the opening device (1 0), at least one in the closed position (SS) on the furniture flap (11) or on the actuating arm (52) abutting trigger element (53), by which the latching device (17) can be unlocked by overpressing the furniture flap (11) in the closing direction (SR), wherein the opening device ( 10) with the actuating arm (52) via a connecting device (54) is connectable, wherein the locking device (17) between the opening spring (12) and the connecting device (54) act nd is arranged and prevented in the locking position, a power transmission between the opening spring (12) and the connecting device (54) and wherein by the opening spring (12) by the locking device (17) unlocked opening device (10) opening force to open the movable furniture flap (11) from the closed position (SS) via the connecting device (54) on the actuating arm (52) can be applied, wherein the connecting device (54) of the furniture flap (11), the trigger element (53) and the actuating arm (52) is formed separately and wherein the trigger element (53) is formed separately from the actuating arm (52).

Description

Description: The invention relates to a furniture drive for a movable furniture flap, with an actuating arm which can be connected to the furniture flap, a main spring which acts on the actuating arm, a lockable opening device for moving the furniture flap from a closed position into an open position, the opening device being separate from the main spring Has opening spring, a locking device for locking the opening device, a trigger element at least in the closed position on the furniture flap or on the actuating arm, by means of which the locking device can be unlocked when the furniture flap is pushed over in the closing direction, the opening device being connectable to the actuating arm via a connecting device, wherein the locking device between the opening spring and the connecting device is arranged to act and in the locking position a power transmission between the opening f eder and the connecting device is prevented, and the opening spring can be used to apply opening force for opening the movable furniture flap from the closed position to the actuating arm via the connecting device when the opening device is unlocked by the locking device. In addition, the invention relates to furniture with such a furniture drive.

Furniture flaps are used in a variety of ways. For example, flaps, fold-up flaps, swing-up flaps and lift lifts are known in AT 009 076 Ü1. In order to facilitate the opening movement, a so-called touch-latch device (opening device) is arranged in the area of the furniture body. This allows the furniture flap to be pushed out in the opening direction when the closed furniture flap is pressed. The opening device is attached in the lower area of the furniture body and acts directly on the furniture flap, the pusher of the opening device only resting against the movable furniture part on a first ejection path. After the ejection movement has ended, the flap - partly supported by the main spring - has to be lifted by hand.

Similarly, according to WO 2010/022414 A1, the ejection device can be designed as an integral part of the actuator, the ejection device then simultaneously forming the release element.

WO 2011/020130 A1 also shows such furniture with an actuating arm arrangement and an ejection device, but the locking device is always part of a completely independent ejection device and is therefore not arranged between the support spring and a lever which is regarded as a connecting device.

A disadvantage of these designs is that, especially with high flaps, the ejection devices only allow a relatively small opening angle of the furniture flap. This is often less than 5 degrees. This means that the user still has to carry out a relatively long opening path for the furniture flap. In order to increase the opening angle, it would be possible to make the ejection devices significantly longer. However, the disadvantage here is that these ejectors protrude far when the flap is open and are a hindrance to the use of the furniture and impair the aesthetics of the furniture. Another disadvantage is that with very heavy flaps, the ejection devices (also called TIP-IP) do not have enough force to carry out the ejection process. It is also disadvantageous that it is often difficult to match the spring force of the ejection device with the spring force of the main spring.

The object of the present invention is therefore to provide a given furniture drive improved over a prior art for a movable furniture flap. In particular, the disadvantages mentioned above are to be remedied and the user is provided with a furniture flap drive which significantly increases the ease of use.

This object is achieved for a furniture drive with the features of the preamble of claim 1 in that the connecting device from the furniture flap, from Auslö1 / 39

AT511 546 B1 2018-10-15 Austrian patent office se element and is formed separately from the actuating arm and that the trigger element is formed separately from the actuating arm. This has the advantage that the opening device no longer acts separately on the furniture flap, but rather ejects the actuating arm, which is connected to the furniture flap anyway, in the opening direction. This means that a separate TIP-ON mechanism in the lower area of the furniture body is no longer necessary. Furthermore, the connecting device enables direct power transmission from the opening device to the actuating arm.

According to a preferred embodiment of the present invention, it can be provided that the trigger element is connected to the locking device via a transmission mechanism. This transmission mechanism can be arranged along the side wall of the furniture body and can effect the transmission of the release. The further down this trigger element is arranged in the area of the furniture body, the better a slight movement of the furniture flap in the closing direction can be registered.

The opening device can be designed as desired (e.g. with a gas pressure accumulator), but it is preferably provided that the opening device has the opening spring acting in the opening direction on the actuating arm.

It is important that the opening force acting on the furniture flap is greater, at least in a first section of the opening movement, than a locking force acting on the actuating arm in this section. This locking force can come from both the main spring and the weight of the furniture flap itself. The main spring is preferably balanced so that it always keeps the furniture flap neutral. This means that the furniture flap can be moved easily by the user and as soon as the user releases the furniture flap, it remains in the release position.

A particular advantage over the prior art is the larger ejected opening angle, the first portion of the opening movement in an opening angle of the furniture flap between 0 ° and 15 °, preferably up to 20 °, no matter how high the furniture flap is.

In order to load the opening spring again, it can be provided that the opening spring of the opening device can be tensioned in an opening angle region of the furniture flap lying outside the first section of the opening movement. As a result, the user automatically loads the spring of the ejection device when the movable furniture flap is closed. In this regard, it can preferably be provided that the opening spring can be tensioned when the furniture flap is closed, preferably in an opening angle range between 150 ° and 15 °, particularly preferably between 75 ° and 25 °.

According to a preferred embodiment of the present invention, it can be provided that in the closed position, an ejection lever of the opening device, preferably via a pressure roller, bears against a push lever of the connecting device and the ejection lever pivots the push lever when the opening device is unlocked. In order to then achieve the power transmission down to the furniture flap, it can further be provided that the abutment lever of the connecting device is connected to an element of a lever mechanism connected to the actuating arm via at least one connecting element, preferably via a connecting pin and preferably in a form-fitting manner. It does not necessarily have to be provided that the said element (or the actuating arm) is part of a lever mechanism. Rather, such a lever mechanism known per se, such as e.g. is shown in WO 2011/020130 A1, can also be replaced by an arrangement according to DE 20 2005 021 541 U1. It is important that the opening force is transmitted via the connecting device to a corresponding element of the lever mechanism or a pressure roller control arrangement.

With the tensioning of the ejection device outside (ie not in the last closing section as in the prior art), an improved damping when closing the furniture flap is also possible. This is achieved by a damping device that acts on the furniture flap in the last closing section. It can preferably be provided that the damping device

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AT511 546 B1 2018-10-15 Austrian patent office applies a lever of the actuating arm arrangement in the last part of the closing movement to dampen in the opening direction.

Basically, two exemplary embodiments are shown according to the present invention. According to the first exemplary embodiment, the touch-latch mechanism can be attached laterally to a lever mechanism known per se. The second variant shows a version integrated in a lever mechanism (actuating arm arrangement).

A problem that often arises when an opening device is triggered is how best and most reliably to detect the overpressure movement for triggering the opening device. With furniture flaps, this is best possible at the lower end of the furniture flap, since this is where the greatest pivoting movement is given. However, this requires a complex and space-consuming construction of the trigger element and, above all, the transmission mechanism to the locking device.

To avoid this, the trigger can be moved relatively close to the pivot axis. However, the closer a detection is to the swivel axis of the furniture flap, the more sensitive and precise the triggering must react and be set. This is difficult to handle due to the often necessary tolerances.

In both variants it is disadvantageous that the detection must be pressed against the relatively large and heavy furniture drive and against its main spring.

In order to solve this problem in a furniture drive with a control arm connected to the furniture flap, it is provided according to a preferred embodiment that the control arm is formed in two parts, with a first part fastened to the furniture flap opposite to that in the closed position of the furniture flap second part, which is movably coupled via a lever mechanism (and thereby to the main spring) of the furniture drive. This means that when the furniture flap is in the closed position, the entire lever mechanism does not have to be pressed against the main spring, but only the immediate flap fitting is moved with the first part of the actuating arm.

For this purpose, it is particularly preferably provided that a release element, by means of which a locking device can be unlocked when the furniture flap is pushed over in the closing direction, bears against the first part of the actuating arm in the closed position of the furniture flap. In addition, it can preferably be provided that the two parts can be pivoted relative to one another and that an energy accumulator acting in the opening direction on the first part is arranged between the two parts.

Protection is also sought for a piece of furniture according to claim 15. In principle, it should not be excluded that the furniture flap has a vertical or possibly inclined pivot axis. However, it is preferably provided that the furniture flap can be pivoted about a horizontal pivot axis.

Further details and advantages of the present invention are explained in more detail below with reference to the description of the figures and with reference to the exemplary embodiments illustrated in the drawings. In it show:

1 to 12 [0024] FIGS. 13 to 22 [0025], 23 [0026], 24 [0027], 25 [0028], 26 [0029], 27 the embodiment variant with side mounted opening device, the variant with the opening device integrated in the flap fitting, an exploded view of the two-part adjusting arm, an assembled adjusting arm, a section through the adjusting arm in the closed position, a section through the adjusting arm in the depressed closed position, a view of the furniture drive in the closed position,

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Fig. A view of the furniture drive in the closed closed position, a side view of the furniture drive when opening the furniture flap and [0032] Fig. 3D representation of the furniture drive in the closed closed position.

In both exemplary embodiments, elements with the same reference symbols have essentially the same functions.

Fig. 1 shows a furniture drive 51, in the background on the one hand on a mounting plate 62 lever mechanism 57 (actuating arm arrangement) is shown with the actuating arm 52 and the main spring 59 and on the other hand in the foreground a module plate 58 with attached opening device 10, connecting device 54 and locking device 17. Also shown is the transmission device 55 which, via the housing 68 and the release rod 69, forwards the movement of the release element 53 triggered by the furniture flap 11, not shown, to the locking device 17. 1, the furniture drive 51 is shown in the closed position SS. The damping device 13 acting on the lever 72 can also be seen in this FIG. 1, the damping device 13 being fastened to the lever 65 of the lever mechanism 57. The damping device 13 is not shown in the other figures of the first exemplary embodiment, but it can be seen in the figures of the second exemplary embodiment.

Compared to FIG. 1, the furniture drive 51 is shown in FIG. 2 in a completely open position, in which the actuating arm 52, the boom spring lever 61 and the levers 63, 64 and 65 of the lever mechanism 57 come into this position via the main spring 59. A rectangular fitting hole 67 is formed in the element 56 of the lever mechanism 57. A connecting pin 54c positively engages in this fitting hole. This connecting pin 54c is fixedly connected to the abutment lever 54a and extends through the opening 60 in the module plate 58. All movements of the abutment lever 54a and the entire lever mechanism 57 are transmitted via this connecting pin 54c.

3 again shows the connecting pin 54c projecting through the opening 60 in the module plate 58. The cover part 62a for the lever mechanism 57 is also shown in FIG. 3.

4 shows an exploded view of the touch-latch mechanism which can be placed on the actuating arm arrangement. The essential components are provided with reference numerals. Only a few bolts and other connection components are without reference numerals. Further information on the individual components / reference symbols can be found in the following description of the movement sequence.

The sequence of an opening and closing movement for the first embodiment is shown in FIGS. 5 to 12. 5 shows the essential components of the touch latch mechanism in the closed position SS. This entire mechanism is connected to the actuating arm arrangement via the module plate 58 and hides it. The actuating arm arrangement itself is in turn attached to the furniture body 26 of the furniture 32 and is connected to the furniture flap 11 via the actuating arm 52 and the flap-side fitting 66. In this closed position SS, the trigger element 53 bears against the furniture flap 11. The locking pin 17e on the ejection lever 10a is held on the retaining lug 17b of the locking device 17, as a result of which the ejection lever 10a is locked. The opening spring 12 (compression spring) is tensioned. The pressure roller 10b connected to the ejection lever 10a abuts the abutment lever 54a. The pivot axes 10g and 10o are stationary with respect to the module plate 58, as is the ejection pivot axis 54e. The same applies to the fixed pivot axis 17f. The locking springs 17c and 17d (tension springs) are relaxed.

If now - as shown in Fig. 6 - by pushing in the closing direction SR, the furniture flap 11 moves the trigger element 53 to the left, the trigger element

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Patentamt about the pivot axis 70 rotatably connected release rod 69 moves and tilts the locking lever 17a about the fixed pivot axis 17f, so that the retaining lug 17b of the locking lever 17a comes out of engagement with the locking pin 17e of the ejection lever 10a. The locking lever 17a is pivoted against the spring force of the locking spring 17c.

As soon as the locking pin 17e disengages from the retaining lug 17b, the locking of the opening device 10 is released by the locking device 17 and the opening spring 12 can relax. As a result of this relaxation, the levers 10c of the lever mechanism of the opening device 10 are partially pushed apart and, above all, the ejection lever 10a pivots about the pivot axis 10g. As a result, the pressure roller 10b is pressed against the abutment lever 54a and pivots it about the ejection pivot axis 54e. Via the connecting pin 54c, this pivoting movement is passed on to the actuating arm arrangement (in particular its element 56), further to its lever 65 and subsequently to the actuating arm 52, which moves the furniture flap 11 in the opening direction OR, as a result of which the opening angle γ and the open position OS is achieved. 7, the opening spring 12 has completely relaxed and the movable pivot axes 10e and 10f are at their maximum distance from each other. The pivot axis 10f is connected to the displacement piece 10i, which is displaceable along the spring guide 10d. In addition, the opening device 10 has a damping roller 10h. The two locking springs 17c and 17d are tensioned. In this FIG. 7, the components or their reference numerals, which form the opening device 10, the connecting device 54 and the locking device 17, are summarized by brackets.

7 the furniture flap 11 is moved by hand further in the opening direction OR to the position shown in FIG. 8, whereby the connecting device 54 is pivoted further. With this pivoting about the ejection pivot axis 54e, the tensioning curve 54d comes into abutment with the tensioning roller 10j on the upper lever 10c. By moving the flap 11, the locking springs 17c and 17d can relax again and pivot the ejection lever 10a counterclockwise about the pivot axis 10g, as a result of which the tensioning roller 10j remains in abutment with the tensioning curve 54d swinging away. In addition, the locking pin 17e approaches the retaining lug 17b, and finally, according to FIG. 9, the locking pin 17e latches in the region of the retaining lug 17b of the locking lever 17a. As a result, the locking lever 17a is pivoted again about the axis 17f and the trigger element 53 is moved out of the housing 68. From this position, the opening device 10 is locked by the locking device 17.

As shown in FIG. 10, when the furniture flap 11 moves further in the opening direction, the tensioning curve 54d lifts off the tensioning roller 10j, as a result of which no more power transmission takes place between the connecting device 54 and the opening device 10.

In contrast, when the furniture flap 11 moves in the closing direction SR according to FIG. 11, the tensioning curve 54d again comes into contact with the tensioning roller 10j. This can preferably take place in an opening angle range Δ. As a result of this movement, the upper lever 10c is pivoted about the axis 10o via the tensioning roller 10j and the displacement piece 10i is displaceably displaced along the spring guide 10d against the force of the opening spring 12 and thus the opening spring 12, as a result of which the pivot axes 10e and 10f, which can be moved, approach each other , In this case, the movable pivot axis 10e is stationary due to the locking of the ejection lever 10a via the locking pin 17e relative to the mounting plate 58. This enables the opening spring 12 to be tensioned.

12, the tension roller 10j has moved along the cam 54d to the end, whereby the opening spring 12 is completely tensioned. Due to the formation of the curve shape of the tensioning curve 54d, from this position according to FIG. 12 there is no further tensioning of the opening spring 12 when moving further in the closing direction SR. As a result, a retraction device can act on the furniture flap 11 from this open position of the furniture flap 11. However, it can also be provided that the Ge5 / 39

AT511 546 B1 2018-10-15 Austrian patent office important the furniture flap 11 is balanced so that the user can easily close the furniture flap 11. By this closing the furniture flap 11 and with it the entire furniture drive 51 returns to the position shown in FIG. 5 and can trigger an active ejection of the furniture flap 11 with the opening device 10 via the actuating arm 52 by pushing the release element 53 in the closing direction SR. During the last closing section, the damping device 13 acts on the lever 72 of the lever mechanism 57 and thus dampens the closing movement of the furniture flap 11, as a result of which the furniture flap 11 closes gently and quietly.

13 shows a second exemplary embodiment of a furniture drive 51 according to the invention in the assembled state. The opening device 10 and the connecting device 54 are integrated into the actual actuating arm arrangement and are fastened to the mounting plate 62 (and not via a module plate 58).

FIG. 14 shows an exploded view of FIG. 13, with all essential components being provided with a reference symbol. Some minor components such as Connecting bolts or the like have no reference symbol. The functional principle can also be explained without directly naming these components with reference numerals. 13 and 14, the actuating arm 52 is shown in the closed position.

15 to 22, the furniture drive 51 without furniture body 26 and furniture flap 11 is shown. However, the same location applies as for the furniture drive 51 according to the first embodiment.

15, the actuating arm 52 (and thus also the furniture flap 11, not shown) is in the closed position SS. The trigger element 53 rests on the actuating arm 52 or on the furniture flap 11 itself. This trigger element 53 is connected to the transmission mechanism 55, in this case in one piece, via the pivot axis 70 which is fixed to the mounting plate 62. The spring 71 (tension spring) acts on the transmission mechanism 55 in such a way that it always wants to move clockwise about the pivot axis 70. At its end, the transmission mechanism 55 is connected to an unlocking element 17h via a connecting bolt 17i. This unlocking element 17h is pivotable about the ejection pivot axis 54e. The part 17g of an articulated lever can also be pivoted about the ejection pivot axis 54e. At the other end, this part 17g is connected to the locking lever 17a via the articulated lever pin 17j. Together, 17j, 17g and 17a form the articulated lever. A locking spring 17d is swung around the articulated lever pin 17j, which wants to press the articulated lever pin 17j upward with respect to the ejection pivot axis 54e and the holding nose pin 17k. In this illustration according to FIG. 15, the articulated lever pin 17j lies slightly above an imaginary line between the ejection pivot axis 54e and the retaining nose pin 17k. The further movement of the articulated lever pin 17j upwards is prevented by the retaining lug 17b of the locking lever 17a being in contact with the locking pin 17e. This locking pin 17e is arranged on the tension curve 54d. This tension curve 54d is in turn connected to the locking lever 17a on the one hand via the retaining lug bolt 17k and on the other hand to the abutment lever 54a via the tension curve pivot axis 54f. This push lever 54a is in turn pivotally mounted about the ejection pivot axis 54e. In addition, this push lever 54a is connected to the connecting lever 54b via the push pin 54g. This in turn is connected to the element 56 of the lever mechanism 57 via the connecting pin 54c, as a result of which the movements of the element 56 and of the abutment lever 54a constantly correspond.

The opening spring 12 is fixedly connected to the mounting plate 62 at one end via the mounting elements 10m. At the other end, the opening spring 12 is connected to a guide pin 10n, which in turn is guided in a guide track 10k in the mounting plate 62. In addition, the opening spring 12 is connected via the guide pin 10n to the ejection lever 10a, which in turn is pivotable about the fixed pivot axis 10g connected to the mounting plate 62. At the lower right end, the ejection lever 10a has a pressure roller 10b,

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Patent office which lies in the slightly depressed area between the push lever 54a and the tensioning curve 54d. In this closed position SS, the force of the opening spring 12 presses the tensioning curve 54b via the pressure roller 10b. Since force subsequently arrives at the locking lever 17a via the retaining lug bolt 17k, the articulated lever bolt 17j is pressed upwards in the closed position SS as far as the stop of the retaining lug 17b on the locking pin 17e allows.

If now - as shown in Fig. 16 - in the closing direction SR on the furniture flap 11 or on the actuating arm 52 is pressed, the trigger element 53 is also pressed in the closing direction SR and the transmission mechanism 55 is against the action of the spring 71st pivoted about the pivot axis 70, which in turn subsequently moves the unlocking element 17h counterclockwise about the ejection pivot axis 54e via the connecting bolt 17i. As a result, the unlocking element 17h comes into abutment with the rear part 17g of the articulated lever and thereby moves the articulated lever pin 17j below the imaginary line between the ejection pivot axis 54e and the retaining pin 17k. This also takes place against the spring force of the locking spring 17d. As soon as the articulated lever pin 17j comes below the imaginary line, the spring force of the opening spring 12 no longer acts in a locking manner on the locking lever 17a and the holding lug 17b via the pressure roller 10b and the tensioning curve 54d, but instead kinks the articulated lever against the spring force of the spring 17d.

17, in which the articulated lever pin 17j comes to a standstill clearly below the imaginary line between the ejection pivot axis 54e and the retaining lug pin 17k. Simultaneously with the buckling of the articulated lever, the tension curve 54d is also pivoted clockwise about the tension curve pivot axis 54f, so that the left-hand edges (curves) of the tension curve 54d and the push lever 54a come to lie exactly one above the other and overlap in terms of illustration. Simultaneously with the pivoting in of the tension curve 54d, the pressure roller 10b also begins to roll, releasing the opening spring 12, as a result of which the push lever 54a is rotated counterclockwise about the ejection pivot axis 54e. 18, in which the actuating arm 52 is shown with the opening angle γ. This opening movement takes place in that when the abutment lever 54a is pivoted, the connecting lever 54b is also moved and the element 56 of the lever mechanism 57 is pivoted. As a result of this pivoting of the element 56, the lever 65 of the lever mechanism 57 is subsequently moved to the right and the actuating arm 52 together with the furniture flap 11 opens. The main spring 59 in this illustration according to FIG. 18 is already somewhat relaxed compared to the illustration according to FIG. 17. With the ejection, the dead center in the main mechanics (actuating arm arrangement with main spring 59) is overcome. The damping device 13 is no longer on the lever 72 of the lever mechanism 57. Due to the return spring 71, the transmission mechanism 55 has pivoted again about the pivot axis 70, as a result of which the release element 53 and also the unlocking element 17h have been moved back to the starting position (as in FIG. 15).

As soon as the opening spring 12 has completely relaxed (as in FIG. 18), the furniture flap 11 is moved further by hand in the opening direction OR. Since, during this further movement, spring force no longer acts on the tensioning curve 54d from the opening spring 12 via the ejection lever 10a and its pressure roller 10b, the locking spring 17d can relax and presses the articulated lever into the position according to FIG. 19. The articulated lever pin 17j lies again Above the imaginary line between the ejection pivot axis 54e and the retaining lug pin 17k and the retaining lug 17b abuts the locking pin 17e.

If the furniture flap 11 is now moved further in the opening direction (see FIG. 20), the tensioning curve 54d disengages from the pressure roller 10b and the complete open position is reached.

21, the movable furniture part (furniture flap 11) is moved in the closing direction SR, the tensioning of the opening spring 12 starting in the opening angle range Δ. Tensioning begins in that the tensioning curve 54d locked by the locking lever 17a and the retaining lug 17b bears against the pressure roller 10b via its tensioning section C and

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Patent office presses the opening spring 12 via the ejection lever 10a and thus tensions.

This tensioning continues until the pressure roller 10b has reached the highest point of the tensioning curve 54d and reaches the retracting section E. When this retracting section E is reached, the opening spring 12 can relax slightly (moving from FIG. 22 to FIG. 15) and thus actively retracts the movable furniture flap 11 in the last closing section. That is, by passing the peak of the tension curve 54d, the connecting lever 54b is actively rotated clockwise around the ejection pivot axis 54e, so that there is a retracting effect on the actuating arm 52. However, this relaxation takes place only until the pressure roller 10b enters the depression between the tensioning curve 54d and the connecting lever 54b. As a result, the closed position SS according to FIG. 15 is reached again. An advantage of the present invention also lies in the fact that during the - in this case active - retraction, the damping device 13 enables the retraction movement triggered by the opening spring 12 to be damped, as a result of which the furniture flap 11 closes gently and braked.

For both exemplary embodiments, it should also be mentioned that, for example, a synchronization rod can be fastened in the region of the ejection pivot axis 54e, which transmits the rotary movement to a, preferably mirror-symmetrical, lever mechanism on another side of the furniture body 26.

An exploded view of the two-part actuating arm 52 is shown in FIG. 23. The second part 52b of the actuating arm 52 is forcibly or movement-coupled via the connecting areas 88 to a lever mechanism 57, not shown here. That is, a movement of the second part 52b of the actuating arm 52 always leads to the movement of the lever mechanism 57 and vice versa. On the second part 52b of the actuating arm 52 there is also an adjusting element 81, by means of which a translational adjustment of the first part 52a of the actuating arm 52 via the adjusting knobs 83 is possible. The pivot axis 86 is also arranged in this area, along which the two parts 52a and 52b can be pivoted relative to one another against the force of the energy store 80. A plurality of connecting bolts 87 are shown in the region of the second part 52a of the actuating arm 52. In the lower area of the second part 52a of the actuating arm 52, on the one hand the contact area 82 for a release element 53 and on the other hand the snap-in element 84 together with the snap-in spring 85 for attachment to a flap fitting 66 of a furniture flap 11 is shown.

24, the actuating arm 52 can be seen in the assembled state, the abutment area 82 looking out of the second part 52b of the actuating arm 52.

25 shows a section through the actuating arm 52, the energy accumulator 80 (can be designed as a spring, as a rubber buffer or the like) being in a relaxed position.

Since the furniture flap 11 (not shown in FIG. 26) is fixedly connected to the first part 52a of the actuating arm 52, pressing the furniture flap 11 first moves (pivots) the first part 52a of the actuating arm 52 with respect to the second part 52b of the actuating arm 52 performed against the force of the energy accumulator 80.

A representation corresponding to FIG. 25 is shown in FIG. 27, the entire furniture drive 51 being in the closed position SS (this representation also corresponds to FIG. 15). It can be seen in FIG. 27 that the first part 52a of the actuating arm 52 lies against the release element 53 via the contact area 82. The second part 52b of the actuating arm 52 is positively coupled to the lever mechanism 57 and is thus acted upon indirectly by the main spring 59.

28 and 29 show that the first part 52a of the actuating arm 52 can be moved at least as far relative to the second part 52b of the actuating arm 52 by pressing the furniture flap 11 in the closed position SS until the first part 52a adjacent trigger element 53 unlocks the locking device 17, whereby opening force 10 for opening the movable furniture flap 11 can be applied to the furniture flap 11 from the second part 52b of the actuating arm 52 via the first part 52a of the actuating arm 52.

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This means that the opening device 10 can be triggered by pressing the furniture flap 11 without having to work manually against the main spring 59 and the inertia of the entire lever mechanism 57. Rather, only the movement of the furniture flap 11 and the first part 52a of the actuating arm 52 against the release element 53 is necessary, as a result of which the locking device 17 can be unlocked via the transmission mechanism 55.

29 shows the furniture drive 51 that opens the furniture flap 11, which is not shown.

30 shows a 3D representation of the furniture drive 51 corresponding to FIG. 28 and FIG. 16 in the overpressed closed position US. In this case, the operator moves the first part 52a of the actuating arm 52 and its contact area 82 by pressing the furniture flap 11, so that the release element 53 is moved downward by the release element 53 via the transmission mechanism 55 such that the locking device 17 is unlocked.

The present invention thus shows a furniture drive 51 for a furniture flap 11, in which an active and direct ejection of the furniture flap 11 via the actuating arm 52 takes place by overpressing the furniture flap 11 in the closing direction SR.

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Claims (16)

claims 1. Furniture drive (51) for a movable furniture flap (11) with - An adjusting arm (52) which can be connected to the furniture flap (11), - a main spring (59) which acts upon the actuating arm (52), a lockable opening device (10) for moving the furniture flap (11) from a closed position (SS) to an open position (OS), the opening device (10) being one of the main spring ( 59) has a separate opening spring (12), a locking device (17) for locking the opening device (10), - An at least in the closed position (SS) on the furniture flap (11) or on the actuating arm (52) engaging trigger element (53), by means of which the locking device (17) can be unlocked when the furniture flap (11) is pressed over in the closing direction (SR) the opening device (10) can be connected to the actuating arm (52) via a connecting device (54), the locking device (17) being arranged to act between the opening spring (12) and the connecting device (54) and in the locking position a force transmission between the opening spring ( 12) and the connecting device (54), and with the opening spring (12) when the opening device (10) is unlocked by the locking device (10) opening force for opening the movable furniture flap (11) from the closed position (SS) via the connecting device (54) can be applied to the actuating arm (52), characterized in that the connecting device (54) is provided by the furniture The flap (11) is formed separately from the release element (53) and from the actuating arm (52) and that the release element (53) is separately formed from the actuating arm (52). 2. Furniture drive according to claim 1, characterized in that the trigger element (53) via a transmission mechanism (55) is connected to the locking device (17). 3. Furniture drive according to claim 1 or 2, characterized in that the opening force acting on the furniture flap (11) is greater at least in a first section of the opening movement than a locking force acting in this section on the actuating arm (52). 4. Furniture drive according to claim 3, characterized in that the first portion of the opening movement in an opening angle (γ) of the furniture flap (11) is between 0 ° and 15 °. 5. Furniture drive according to claim 4, characterized in that the opening spring (12) of the opening device (10) in an outside of the first section of the opening movement opening angle range (Δ) of the furniture flap (11) can be tensioned. 6. Furniture drive according to claim 5, characterized in that the opening spring (12) when closing the furniture flap (11), preferably in an opening angle range (Δ) between 150 ° and 15 °, particularly preferably between 75 ° and 25 °, can be tensioned. 7. Furniture drive according to one of claims 1 to 6, characterized in that in the closed position (SS) an ejection lever (10a) of the opening device (10), preferably via a pressure roller (10b), on a push lever (54a) of the connecting device (54) abuts and the ejection lever (10a) pivots the push lever (54a) when the opening device (10) is unlocked. 8. Furniture drive according to claim 7, characterized in that the abutment lever (54a) of the connecting device (54) via at least one connecting element, preferably via a connecting pin (54c) and preferably in a form-fitting manner, with an element (56) with an actuating arm (52) connected lever mechanism (57) is connected. 9. Furniture drive according to one of claims 1 to 8, characterized by a damping device (13) for the last part of the closing movement of the furniture flap (11). 10/39 AT511 546 B1 2018-10-15 Austrian Patent Office 10. Furniture drive according to claim 9, characterized in that the damping device (13) in the last part of the closing movement acts on a lever (72) of the lever mechanism (57) damping. 11. Furniture drive according to one of claims 1 to 10, characterized in that the adjusting arm (52) is formed in two parts, wherein in the closed position (SS) of the furniture flap (11) a first part (52a) which can be fastened to the furniture flap (11) is movable, preferably pivotable, relative to the second part (52b), which is coupled to a lever mechanism (57) of the furniture drive (51). 12. Furniture drive according to claim 11, characterized in that the release element (53), by which a locking device (17) can be unlocked when the furniture flap (11) is pushed over in the closing direction (SR), in the closed position (SS) of the furniture flap (11) abuts the first part (52a) of the actuating arm (52). 13. Furniture drive according to claim 12, characterized in that the first part (52a) of the actuating arm (52) by pressing the furniture flap (11) located in the closed position (SS) at least as far as the second part (52b) of the actuating arm (52) can be moved until the release element (53) bearing against the first part (52a) unlocks the locking device (17), whereby an opening device (10) opens force for opening the movable furniture flap (11) from the second part (52b) of the actuating arm (52) can be attached to the furniture flap (11) via the first part (52a) of the actuating arm (52). 14. Furniture drive according to one of claims 11 to 13, characterized in that between the two parts (52a, 52b) in the opening direction (OR) on the first part (52a) acting energy store (80), preferably in the form of a spring, is arranged is. 15. Furniture (32) with a furniture body (26) and a furniture flap (11), wherein the furniture flap (11) via a furniture drive (26) mounted furniture drive (51) according to one of claims 1 to 14 relative to the furniture body (26) is movably mounted. 16. Furniture according to claim 15, characterized in that the furniture flap (11) is pivotable about a horizontal pivot axis.