EP1766173A1

EP1766173A1 - Actuating mechanism for a swivel-mounted actuating arm

Info

Publication number: EP1766173A1
Application number: EP05734880A
Authority: EP
Inventors: Klaus Brüstle
Original assignee: Julius Blum GmbH
Current assignee: Julius Blum GmbH
Priority date: 2004-07-14
Filing date: 2005-04-27
Publication date: 2007-03-28
Anticipated expiration: 2025-04-27
Also published as: BRPI0513268A; BRPI0513268B1; US7500287B2; JP2009062809A; US7810213B2; CN1985064A; EP1766173B1; EP2003276A1; US20070124893A1; KR101225356B1; US20090064457A1; WO2006005086A1; JP2008506054A; HUE037072T2; JP4787252B2; DE502005009925D1; SI2003276T1; ATE474118T1; JP5113716B2; DE202005021541U1

Abstract

The invention relates to an actuating mechanism (1) for a swivel-mounted actuating arm (2), especially for driving a lid (3) of an item of furniture. Said mechanism comprises a spring device (5) including a biased actuating element (13) and a translatory mechanism (7) which translates the movement of the actuating element (13) into a swiveling movement of the actuating arm (2). Said translatory mechanism (7) comprises at least one adjusting device (8) for varying the translation ratio between the movement of the actuating element (13) and the swiveling movement of the actuating arm (2).

Description

Actuation mechanism for a pivotally mounted actuator arm

The present invention relates to an actuating mechanism for a pivotally mounted actuating arm, in particular for driving a flap of a piece of furniture, with a spring device having a spring-loaded actuating part and a transmission mechanism which converts the movement of the actuating part into a pivoting movement of the actuating arm.

Such adjusting mechanisms are known in many embodiments according to the prior art and are preferably used to move flaps or lifting doors of furniture, which are mounted on a horizontal pivot axis, from the closed position to an open position or in the reverse direction and the flap in a certain position. Such a flap holder is known for example from DE 26 53 106, which has two actuating arms, which are acted upon by a spring device. Two cam sections designed differently on an actuating arm run on a contact surface on the second actuating arm. A further technical development is shown in US Pat. No. 5,904,411, which shows a flap holder with a pivoting flap, wherein a spring-loaded setting part is coupled directly to a pivotable actuating arm via a rigid connecting arm. A translatory movement of the actuating part is thereby converted into a rotational movement of the actuating arm, which in turn moves the furniture flap in its open or closed position. The German patent application DE 101 45 856 shows a folding lid for a cabinet, wherein a spring-loaded actuating part runs on a setting contour of a cam, which in turn is coupled to an actuating arm for moving the furniture flap.

Despite the advantageous technical improvements of the above-mentioned documents, for example, a fact proves to be disadvantageous. It has been found that when using different heavy to moving furniture flaps always the same attenuation course takes place. Lighter furniture flaps are as well as heavier furniture flaps moved or damped, so that a favorable movement or damping curve corresponding to the different weight of the furniture flaps can not be guaranteed. Object of the present invention is therefore to avoid the above-mentioned disadvantage of the prior art.

This is inventively achieved in an advantageous embodiment in that the translation mechanism has at least one adjusting device for varying the transmission ratio between the movement of the adjusting member and the pivoting movement of the actuating arm.

The gear ratio is preferably defined as the ratio of zurücksteilem Stellteilweg to rotation angle of the actuating arm. DE 101 45 856, for example, due to the curved configuration of the control contour on the closing or opening path variable transmission ratio, but this is already fixed by the control contour. The present invention, in contrast, has a separately arranged adjustment device which allows a precise and controlled adjustment of the transmission ratio. The transmission ratio is variable so that one and the same actuating mechanism can be provided for advantageously moving or damping differently sized furniture flaps.

An advantageous variant of the invention results from the fact that the translation mechanism has a pivotally mounted intermediate lever, which is acted upon on the one hand by the spring-loaded actuating part and on the other hand on a trained on the actuating arm or attached control contour - preferably via a pressure roller - is applied. By the pivotally mounted intermediate lever, the leverage ratios and thus the transmission ratio of the control part can be changed to the actuating arm, preferably a continuous adjustment is provided. It may be expedient if the position of the point of application of the spring-loaded actuating part on the intermediate lever is adjustable, resulting in changed leverage. In this context, it may also be advantageous that the distance of the point of application of the spring-loaded actuating part from the axis of rotation of the intermediate lever is adjustable.

For the realization of the spring device, there are various possibilities. In this case, the configuration may be such that the spring device comprises at least two or more - preferably arranged in parallel - tension springs. At another advantageous embodiment of the invention can also be provided that the

Spring device comprises at least two or more - preferably arranged in parallel - compression springs. Of course, spring devices are also included which comprise at least one tension spring and at least one compression spring. The spring device may be articulated to allow pivoting thereof to compensate for stress. As a result, the biasing forces in the direction of the actuating part can advantageously be varied or adjusted. As a spring device, a gas pressure accumulator can be used advantageously.

According to a further embodiment, it is provided that a displacement device is arranged or formed on the intermediate lever, by means of which the point of application of the actuating part is adjustable. By this displacement device, the biasing force of the spring device can be changed to the effect that the position of the individual pivot points to each other changed. Due to the resulting lever ratios, the adjusting mechanism can be adapted to different sizes or weights of the movable furniture flaps. In this case, the design may favorably be such that the displacement device comprises a rod or a threaded spindle, along which the point of application of the actuating part is displaceably mounted.

A further advantageous embodiment of the invention results from the fact that the intermediate lever has a slotted guide, along which the spring-loaded control member is feasible. For example, a curve shape, preferably a spring-device-facing side, may also be provided in the slide guide, by means of which the bias of the spring device or its characteristic range can be varied. Through this achieved adjustability of the working range or the spring force range can be controlled controlled within the given slide guide the transmission ratio.

Advantageously, it is provided that the transmission mechanism has at least two adjusting devices for changing the transmission ratio between the movement of the actuating part and the pivoting movement of the actuating arm. It may be expedient if two separate adjusting devices for coarse or fine adjustment of the transmission ratio are arranged. The arrangement according to the invention is characterized by a movable furniture part, in particular a furniture flap, with an adjusting mechanism according to the invention.

Further details and advantages of the present invention will be explained in more detail below with reference to the description of the figures with reference to the drawings. It shows or shows:

Fig. 1a, 1 b is a schematically illustrated side sectional view through a furniture body with an actuating mechanism according to the invention in the closed position, wherein the

Spring device is designed as a compression spring package, and the detail B of Fig. 1a, Fig. 2a, 2b, the adjusting mechanism of Fig. 1a, 1b in a half-opened

Position, as well as the detail A of Fig. 2a Fig. 3a, 3b, the adjusting mechanism of Fig. 1a, 1 b and Fig. 2a, 2b in the

Open position, as well as the detail C of Fig. 3a

4a, 4b, another embodiment of a located in the open position adjusting mechanism in a side view and in a perspective view, wherein the spring device is designed as a tension springs package,

Fig. 5a, 5b is a side view and a perspective view of

Actuating mechanism of Fig.4a, 4b in a half-open position,

6a, 6b is a side view and a perspective view of the adjusting mechanism of Fig. 4a, 4b and Fig. 5a, 5b in the

Closed position,

7a, 7b is a side view and a perspective view of the

Adjusting mechanism of FIGS. 4a, 4b to 6a, 6b with a changed transmission ratio, FIGS. 8a-8d, 8a'-8d 'various possible applications of the adjusting mechanisms according to the invention,

9a, 9b is a schematic exploded view and a view in the assembled state of an actuating mechanism according to the invention with a compression spring assembly as a spring device, 10a, 10b is a schematic exploded view and a view in the assembled state of a Stell¬ mechanism according to the invention with a Zugfedernpaket as a spring device,

11a, 11b is a side view of an exemplary Hochfaltklappe with an actuating mechanism according to the invention in the closed position and the detail C of FIG. 11a

12a, 12b, the fold-up flap of Fig. 11a, 11 b in the half-open position and the detail B of Figure 12a

13a, 13b, the fold-up flap of Fig. 11a, 11b and Fig. 12a, 12b in the open position and the detail A of Fig.13a

14a, 14b a further embodiment of the invention with an adjustable transmission element,

15a, 15b, the embodiment of Fig. 14a, 14b with increased transmission ratio,

16 is an exploded view of the Ausführungs¬ example of FIG. 14 and FIG. 15,

FIGS. 17a-17c are perspective views of another

Embodiment with two setting devices for changing the transmission ratio,

18a, 18b are side views of the embodiment of Fig. 17a to 17c in detail, and with the cover removed,

19a, 19b representations during the coarse adjustment of the ratio,

FIGS. 20a-20c representations during the fine adjustment of the transmission ratio,

Hg. 21a, 21b an exploded view of the translation mechanism and an enlarged detail view,

22 shows a further embodiment of the invention with two levers hinged together,

23 is a perspective view of the embodiment of FIG. 22,

24a, 24b are side views of the embodiment of Fig. 22 and Fig. 23 with the pivot arm in the fully open position and in a half-open position. Fig. 1a shows a schematically illustrated embodiment of an actuating mechanism 1 according to the invention in the closed position with a flap 3 pivotable about a horizontal axis, Fig.1b shows an enlarged view of the detail B of Fig.1a. This adjusting mechanism 1 is fastened via a suspension device 15 to a vertical inner wall of a furniture carcass 4. The actuating mechanism 1 has a pivotably mounted actuating arm 2, which is provided with the articulated levers 2 ', 2 "for moving the flap 3 between an open position and a closed position

10 one or more - preferably parallel connected - springs comprises. The spring device 5 acts on a displaceably mounted actuating part 13 with a force pointing in the direction of the flap 3. The adjusting member 13 is thus linearly displaced according to the load of the spring device 5. A translation mechanism 7 converts the linear movement of the setting member 13 in a pivoting movement, which

1.5 in turn applied to the actuator arm 2 for moving the flap 3. The translation mechanism 7 comprises an adjusting device 8 for changing the transmission ratio between the linear movement of the actuating part 13 and the pivotal movement of the actuating arm 2. In the figure shown, the transmission mechanism 7 has a mounted about the axis of rotation 14 intermediate lever 9 0, on the one hand acted upon by the spring-loaded actuator part 13 is, and on the other hand rests on a, formed on the actuating arm 2 or attached control contour 12 via a pressure roller 11. The adjusting contour 12 is formed or arranged at the end of the actuating arm 2 in the form of a curved control cam 10. The control cam 10 is mounted on the axis of rotation 17 and meshes with moving the flap 3 with the pressure roller 5 11. As a result, the intermediate lever 9 is pivoted by the spring-loaded actuator 13 in a clockwise direction about the axis of rotation 14, as will be clarified in the following figures.

Fig. 2a shows the adjusting mechanism 1 of Fig. 1a, 1b in a half-open position, 0 Fig. 2b shows an enlarged view of the detail A of Fig. 2a. Of the

Actuation mechanism 1 comprises a spring device 5, which is designed as a compression spring package. The spring device 5 is partially unloaded in the illustration shown in comparison to the spring device of FIG. The mounted on the pivot point 17 control cam 10 rolls on the pressure roller 11, whereby the mounted at the pivot point 5 14 intermediate lever 9 by the spring-loaded actuating member 13 in Turned clockwise. The contact pressure of the pressure roller 11 on the control contour 12 is determined on the one hand by the clamping force of the spring device 5 and the relative position of the control cam 10 and the control contour 12 to the pressure roller 1 1.

Fig. 3a shows the adjusting mechanism 1 of Fig. 1a, 1b and Fig. 2a, 2b in the open position, Fig. 3b shows an enlarged view of the detail C of Fig. 3a. The compression springs of the spring device 5 are substantially in a relaxed state, but always the intermediate lever 9 is acted upon by a certain force, so that the furniture flap 3 can be held over at least part of the pivoting in any position. In FIGS. 1 to 3, for reasons of clarity, the transmission ratio has not been changed by the adjusting device 8, since the point of application 6 has not been displaced within the slide guide 18.

Fig. 4a and Fig. 4b show schematically a further embodiment of the invention in a side and in a perspective view. The spring device 5 is executed in contrast to that of FIGS. 1 to 3 as a tension spring package. The spring-loaded actuating part 13 is displaceably mounted along the guide rod 51 in the figure shown. The spring-loaded actuator 13 acts on a trough-shaped push rod 54 which is coupled at its other end to the intermediate lever 9. Relevant is that the push rod 54 is not connected to the spring suspension 55, ie that the trough-shaped push rod 54 is slidably guided behind the spring suspension 55. The intermediate lever 9 is pivotally mounted on its axis of rotation 14, wherein the spring device 5 via the push rod 54, the intermediate lever 9 is acted upon by a counterclockwise force. The actuator arm 2 (and thus a flap 3, not shown) is in the illustrated figure in the open position. The control arm 2 is pivotally mounted on the axis of rotation 17 and has a control cam 10 with a control contour 12. The pressure roller 11 is pressed by the force of the spring device 5 to the control contour 12. When the adjusting arm 2 is now moved downwards, the adjusting contour 12 rolls on the pressure roller 11, so that the intermediate lever 9 is pivoted about the rotation axis 14 in the clockwise direction. As a result, the push rod 54 is shifted to the left and pushes the spring-loaded actuator 13 in the direction of arrow A gradually to the left, causing the spring device 5 is tensioned. The spring suspension 55 is supported by the two pins 53 substantially stationary, it is only a slight clearance compensation by the two slot-like guides 52 allows. In principle, the spring suspension 55 could also be arranged completely stationary. However, since the guide rod 51 is movably mounted on the pivot axis 16 relative to the suspension device 18, a compensating movement of the spring suspension 55 can be made possible by the slot-like guides 52. The adjustment device 8 for setting the transmission ratio comprises a rod 19 mounted on the intermediate rod 19 and a threaded spindle, along which the point of application 6 of the push rod 54 is slidably mounted.

Fig. 5a and Fig. 5b show the adjusting mechanism 1 of Fig. 4a, 4b in a half-open position of the actuating arm 2. It can be seen that the mounted on the axis of rotation 14 intermediate lever 9 was pivoted by the closing movement of the actuating arm in a clockwise direction. By this movement was also the trough-shaped push rod 54 with the hinged thereto spring-loaded actuator

13 moved further to the left. The springs of the spring device 5 are gradually tensioned in this process, the resulting force presses the pressure roller 11 against the control contour 12 of the actuating arm 2. This force can be adjusted by the adjustability of the transmission ratio so that the weight of the flap 3 is compensated, so that the flap 3 is held in preferably each pivot position of the actuating arm 2.

Fig. 6a and Fig. 6b show the adjusting mechanism 1 of Fig. 4a, 4b and Fig. 5a, 5b in the fully closed position of the actuating arm 2 (and thus a flap 3, not shown). By the closing movement of the actuating arm 2 was the at the axis of rotation

14 mounted intermediate lever 9 pivoted even further in a clockwise direction. As a result, the now not apparent tub-shaped push rod 54 was pushed past behind the stationary mounted spring suspension 55 so that the spring-loaded actuator 13 is in the extreme end position relative to the guide rod 51, so that the springs of the spring device 5 are in a maximum tensioned state. In Figures 4 to 6, the gear ratio was not changed by the adjustment 8 for reasons of clarity, since the point 6 has not been moved in its relative position to the rod 19. Fig. 7a and Fig. 7b show the adjusting mechanism 1 of Figs. 4a, 4b to Fig. 6a, 6b with a Zugfedernpaket as spring device 5. In the illustrated figure, the gear ratio was changed by an adjustment of the point 6 on the intermediate lever 9, which is achieved by the adjusting device 8 on the intermediate lever 9. The point of application 6 is displaceably mounted on a rod 19, wherein the rod 19 is preferably designed as a threaded spindle. To adjust the point of application 6, a gear 25 - preferably a gear - provided, which can be adjusted with a hexagon 26. The gear 25 meshes with an intermediate 27, which is rotatably connected to the threaded spindle 19. The point 6 is moved by a pin 28, not shown, within the coupling piece 20, wherein the bolt 28 is provided with an internal thread. A rotation of the hexagon 26 thus causes a rotation of the gear 25, which moves the idle with the threaded spindle 19 mounted intermediate gear 27, wherein the rotation of the threaded spindle causes a height adjustment of a provided with an internal screw pin 28. As a result, a self-locking worm gear with play-free or at least low-play adjustment for moving the point 6 are made possible. Of course, the adjustment of the hexagon 26 can also be done without tools, for example with a hand-operated knurled screw. The point 6 can also be guided displaceably within a slotted guide 18. The slotted guide 18 may also have a curve shape or a curvature, whereby the bias of the spring device 5 and thus their characteristic range can be changed. Due to the changed position of the point of attack 6 other leverage ratios are created, since the position of the individual pivot points is changed to each other. In the figure shown, the pressure of the pressure roller 11 is reduced to the control contour 12 by the shifted position of the point 6, so that lighter furniture flaps 3 can be moved favorably and can be damped according to their weights.

Fig. 8a-8d and Fig. 8a'-8d 'show various applications of the adjusting mechanisms according to the invention 1. The diagrams each show a side view of the furniture carcasses 4, where an upwardly opening furniture flap 3 is arranged. The upper row according to FIGS. 8a-8d respectively show the closed position of the furniture flap 3, while the lower illustrations according to FIGS Fig. 8a'-8d 'in Fig. 8a' a high flap, in Fig. 8b ¹ a folded-up flap, in Fig. 8c ¹ a

High-lift flap and in Fig. 8d "a Hochschwenkklappe in an open position show.

FIGS. 9a and 10a show exploded views of the adjusting mechanisms of FIGS. 1 to 3 (compression spring package) and of the adjusting mechanism 1 of FIGS. 4 to 6 (tension spring package). FIGS. 9b and 10b show the respective adjusting mechanism 1 in the assembled state , The adjusting mechanisms 1 are mounted on a suspension device 15 on the furniture body 4. The threaded spindle 19 is performed by a joint head 29 and rotatably connected to an intermediate gear 27. Evident is also the bolt 28, which has an internal thread and 20 is received within the coupling piece. The threaded spindle 19 engages in the thread of the bolt 28, whereby a displacement of the actuating member 13 takes place in the axial direction of the threaded spindle 19. To connect the two levers 2, 2 'with the flap 3, a fitting 21 is provided.

11a shows a side view of an exemplary pop-up flap with an actuating mechanism 1 according to the invention in the closed position, FIG. 11b shows the enlarged detail C from FIG. 11a. The adjusting mechanism 1 is attached via a suspension device 15 to a vertical side wall of the furniture body 4. At its pivotally mounted actuating arm 2, a furniture flap 3 is arranged at a hinge point 22. The furniture flap 3 is pivotally connected via a horizontal pivot axis 24 with the flap part 3 '. For pivoting the flap part 3 'with respect to the furniture body 4, a hinge 23 is provided with at least two hinge stop parts, which allows a pivoting movement about a horizontal axis. 12a, 12b show the adjusting mechanism 1 in a half-opened position, while FIGS. 13a, 13b show the adjusting mechanism 1 in the open position. In this case, the design can be made so that the actuating arm 2 is acted upon by at least a part of the pivoting path with a torque which allows a lingering of the flap 3, 3 'in any position between the open and closed positions.

Fig. 14a and Fig. 14b show the side view of the adjusting mechanism 1 according to another embodiment of the invention. The actuating arm 2 is located in a slightly open position in FIG. 14a and in a further open position in FIG. 14b. The adjusting mechanism 1 is connected via a suspension device 15 to a vertical Sidewall of a furniture body attached. The spring device 5 is at a fixed

Swivel axis 16 rotatably mounted. This spring device 5 comprises a compression spring packet which acts on the setting part 13 with a force in the direction of the setting contour 12 of the control cam 10. The adjusting member 13 performs in contrast to the linear movement shown in Fig. 1 to 13 from a pivoting movement. The translation mechanism 7 comprises in the figure shown two levers 33, 33 ', which are rotatably and fixedly mounted at a respective pivot point 34, 34'. Between the two levers 33, 33 'a user adjustable by a transmission element 32 is arranged, determines the position of the ratio of Stellteilweg to rotation angle of the actuating arm 2. If the transmission element 32 between these two levers 33, 33 'further down, so the actuator 13 can move further to the right. Thus, the expansion path and thus the range of action of the spring assembly 5 is increased. The lever 33 'has at its end remote from the pivot point 34' a pressure roller 11 which is pressed against the control contour 12 of the control cam 10. The control cam 10 is rotatably and fixedly mounted at its pivot point 17. The control cam 10 is arranged or formed at the end of the actuating arm 2, by means of which a flap 3 is movable into the open or closed position.

15a and 15b show the embodiment of Fig. 14a and Fig. 14b with further downwardly adjusted transmission element 32. By adjusting the transmission element 32 in the direction of the pivot point 34 of the lever 33, the control part 13 can be moved further to the right, which has an increased expansion path of the spring device 5 and an increase of the transmission ratio result. The transmission ratio can be adjusted in a simple manner - depending on the position of the transmission element 32. In the exemplary embodiment shown, the lever 33 'has at least one slot 36 in which the transmission element 32 can be guided. The fixation takes place with the aid of the clamping screw 35. However, the attachment of the transmission element 32 can just as well be effected on the lever 33 connected to the actuating part 13.

Fig. 16 shows an exploded view of the invention

Embodiment of Figs. 17a, b and Fig. 15a, b. To recognize the two

Lever 33, 33 ', the stationary pivot points 34, 34' are arranged offset in relation to the suspension device 15. The lever 33 'has a slot 36 on, with a clamping screw 35, the lever 33 'and the transmission element 32 passes through and causes the same jamming. The length of the slot 36 determines the upper and lower end of the gear ratio.

Fig. 17a shows a further embodiment of the invention, Fig. 17b and 17c show enlarged detail views, respectively. The acted upon by the spring device 5 with force actuator 13 is coupled via an intermediate lever 9 and the control cam 10 with the actuator arm 2. In this embodiment, it is provided that the transmission mechanism 7 has at least two adjusting devices 8a and 8b for varying the transmission ratio between the movement of the adjusting part 13 and the pivoting movement of the actuating arm 2, as shown in Fig. 17b and 17c. By adjusting 8a and 8b, the bearing point position of the adjusting member 13 is adjustable on the intermediate lever 9, whereby the transmission ratio can be set exactly. The intermediate lever 9 is fixed and pivotally mounted at the pivot point 40. Advantageously, it is provided that the transmission ratio can be changed differently by the at least two adjusting devices 8a and 8b. In this case, the design may be such that the adjustment device 8a is provided for a coarse adjustment, or the adjustment device 8b for a vernπverstellung of the transmission ratio. By the adjusting devices 8a and 8b, the bearing point position of the adjusting member 13 can be set exactly on the intermediate lever 9 and thus the transmission ratio. Fig. 17c shows an enlarged detail view from Fig. 17b in the transition region between the setting part 13 and the intermediate lever 9. The intended for the coarse adjustment adjustment 8a comprises a connected to the intermediate lever 9 rack 37, on which by a user (not shown) adjustable Element 38 engages with at least one locking tooth 39. By a rotation of the adjusting device 8a, the locking tooth 39 is lifted out of a gap of the rack 37 and placed in an adjacent gap. The fine adjustment 8b comprises an eccentric 30, wherein it is advantageously provided that the adjustment range of the eccentric 30 corresponds to the tooth width of the toothed rack 37, so that a gap-free adjustment range of the bearing point position of the setting part 13 on the intermediate lever 9 is made possible.

FIG. 18 a shows a side view of the one attached to the suspension device 15

Translation mechanism 7 of Fig. 17a and 17b. Fig. 18b shows the same translation mechanism 7 without cover, so that the inner parts can be seen. The spring-loaded actuator 13 is adjustably mounted on the intermediate lever 9. The intermediate lever 9 is pivotally mounted at a pivot point 40. Of the

Actuator 2 is in the fully open position, so that the control cam 10 can be disengaged from the pressure roller 11. The locking tooth 39 belonging to the adjusting device 8a engages in the rack 37 arranged or formed on the intermediate lever 9. The adjusting device 8a is provided for a coarse adjustment of the transmission ratio. The adjusting device 8b also acts on the rack 37, wherein an eccentric 30 changes the bearing point position of the adjusting part 13 on the intermediate lever 9. The adjusting device 8b is provided for a fine adjustment of the transmission ratio.

19a shows the coarse adjustment of the transmission ratio with the aid of a screwdriver 41, FIG. 19b shows an enlarged detailed illustration from FIG. 19a. In order to change the bearing point position of the actuating part 13 on the intermediate lever 9, the adjusting device 8a is actuated with the screwdriver 41. In order to optimally balance the different sizes of the flaps 3 and thus different weights of the same, the force must be adjustable to control contour 12 of the control cam 10. By turning the adjusting device 8a, this rolls on the rack 37, the adjusting member 13 is lifted at a rotation of 45 ° from the toothing and the locking tooth 39 engages after rotation of the adjusting device 8a by 90 ° again.

20a shows the fine adjustment of the transmission ratio with the aid of a screwdriver 41, FIGS. 8b and 8c each show enlarged detail views. After the coarse adjustment has been carried out as described in FIGS. 19a, 19b, the screwdriver 41 is attached to the setting device 8b. This fine adjustment of the transmission ratio via the previously described eccentric 30. The adjustment of the eccentric 30 preferably corresponds to the tooth width of the teeth of the rack 37. The combination of coarse and fine adjustment a continuous power adjustment is possible.

Fig. 21a shows an exploded view of the two-stage adjustable translation mechanism 7 of Figs. 17 to 20, Fig. 21b shows an enlarged detail view. The loaded by the spring device 5 actuating member 13 is slidably coupled via the bolt 42 (adjusting device 8a) and with the eccentric 30 (adjusting 8b) to the rack 37. The bolt 42 protrudes through the adjustable element 38, on which at least one locking tooth 39 is arranged. Of the

Eccentric 30 protrudes in the assembled state through the opening 43 of the rack 37. By a rotation of the bolt 42 and the eccentric 30, the gear ratio can be changed exactly by a continuous adjustment of force. The front end of the intermediate lever 9 forms a cover plate 44th

Fig. 22 shows a further embodiment of the invention in a side view. Instead of a control contour 12, the actuating part 13 is connected to the actuating arm 2 via at least two levers 31, 31 'connected to one another in an articulated manner. To set the transmission ratio, the bearing point position of the actuating part 13 on at least one of the levers 31, 31 'changeable. The adjusting devices 8a, 8b known from FIGS. 17 to 21 are used for coarse or fine adjustment of the transmission ratio. The adjusting part 13 can be displaced by the adjusting devices 8a, 8b along the surface 49. In order to prevent or at least reduce impact noise when closing the flap 3, a damping device 47 may be provided. Here, for example, find a linear damper use, which is supported on its flap side facing away from a tab 48. At its front end, the damping device 47 has a stop 46 which cooperates when closing the flap 3 with a arranged on the actuating arm 2 or nose 45 formed. Through the nose 45, a piston rod connected to the stop 46 is displaced into the interior of the damping device 47. Advantageously, a fluid cylinder is provided in this case, but in principle all other known according to the prior art damping devices 47 (for example, rotary damper) can be used.

On the outer sides of the lever 31, two levers 31 ', 31 "are articulated, which are connected to the adjusting arm 2 fastened to the axis of rotation 17. An actuation of the adjusting device 8a, 8b leads to a change in position of the adjusting member 13 on the surface 49 of the lever 31. When closing the flap 3, the nose 45 presses against the stop 46 of the damper 47, wherein the last closing of the flap 3 runs off steamed. FIGS. 24a and 24b show the exemplary embodiment from FIGS. 21 and 22 in FIG

24a in the fully open position and in Fig. 24b in a half-open position, in order to avoid a collision with the levers 31 ', 31 "in the fully open position of the actuating arm 2, is a Trough 50 is provided on both levers 31 ', 31 "in the trough 50, the pivot joint of the axis of rotation 17 of the actuating arm 2 can at least partially accommodate.

The present invention is not limited to the examples shown, but includes any variants or technical equivalents which may fall within the scope of the following claims. Also, the position information selected in the description, such as top, bottom, side, etc. related to the usual installation position of the actuating mechanism 1 and on the immediately described and illustrated figure and are to be transferred to a new position analogously to the new situation. The adjusting mechanism 1 was realized in the illustrated drawings as a lever solution. But it is just as conceivable and possible to use a gear variant. It may also be favorable to arrange the adjusting mechanism 1 according to the invention on both sides of a cabinet-shaped piece of furniture. In the figures shown, a translational movement or a pivoting movement of the spring-loaded actuating part 13 has been shown. However, it is also within the scope of the invention, a rotational movement of the actuating member 13 (for example by a torsion spring) to derive in a pivoting movement of the actuating arm 2, wherein by the adjusting device 8, an exact and defined adjustment of the transmission ratio is provided. In addition, the invention provides, the adjusting mechanism 1 according to the invention absolutely identical, i. E. even without mirror-image components, or to use the same on both side walls (left / right) of a piece of furniture with completely identical training.

Claims

claims:

1. adjusting mechanism for a pivotally mounted actuating arm, in particular for driving a flap of a piece of furniture, with a spring device with a spring-loaded actuating part and a translation mechanism, which converts the movement of the actuating part into a pivoting movement of the actuating arm, characterized in that the transmission mechanism (7) at least an adjusting device (8) for changing the transmission ratio between the movement of the setting part (13) and the pivoting movement of the

Stellarmes (2).

2. adjusting mechanism for a pivotally mounted actuating arm, in particular for driving a flap of a piece of furniture, with a spring device with a spring-loaded actuating part and a translation mechanism, the

Movement of the actuating part in a pivoting movement of the actuating arm converts, in particular according to claim 1, characterized in that the transmission mechanism (7) has a pivotally mounted intermediate lever (9) which is acted on the one hand by the spring-loaded actuating part (13) and on the other hand to a on the actuating arm ( 2) trained or attached

Setting contour (12) - preferably via a pressure roller (11) - is applied.

3. adjusting mechanism according to claim 1 and 2, characterized in that the position of the point (6) of the spring-loaded actuating part (13) on the intermediate lever (9) is adjustable.

4. adjusting mechanism according to claim 3, characterized in that the distance of the engagement point (6) of the spring-loaded actuating part (13) of the rotational axis (14) of the intermediate lever (9) is adjustable.

5. adjusting mechanism according to one of claims 1 to 4, characterized in that the spring device (5) comprises at least two or more - preferably arranged in parallel - tension springs.

6. adjusting mechanism according to one of claims 1 to 5, characterized in that the spring device (5) comprises at least two or more - preferably arranged in parallel - compression springs.

7. Adjusting mechanism according to one of claims 1 to 6, characterized in that the spring device (5) is preferably supported at a hinge point (16) relative to a furniture body (4).

8. Adjusting mechanism according to one of claims 2 to 7, characterized in that on the intermediate lever (9) a displacement device is arranged or formed, by which the engagement point (6) of the actuating part (13) is adjustable.

9. adjusting mechanism according to claim 8, characterized in that the displacement device comprises a rod (19), along which the engagement point (6) of the actuating part (13) is displaceably mounted.

10. Adjusting mechanism according to claim 9, characterized in that the rod (19) is preferably designed as a threaded spindle on which a gear wheel (25) via a rotatably mounted on the threaded spindle idler gear (27) engages.

11. Actuating mechanism according to one of claims 2 to 10, characterized in that the intermediate lever (9) has a slotted guide (18), along which the spring-loaded actuating part (13) can be guided.

12. Setting mechanism according to one of claims 1 to 11, characterized in that the actuating part (13) performs a linear movement (Fig. 1 - 13).

13. Actuating mechanism according to one of claims 1 to 11, characterized in that the actuating part (13) performs a pivoting movement (Fig. 14 - 16).

14. Actuating mechanism according to one of claims 1 to 13, characterized in that the transmission mechanism (7) at least two Adjusting means (8a, 8b) for varying the transmission ratio between the movement of the actuating part (13) and the pivoting movement of the actuating arm (2).

15. Actuator mechanism according to claim 14, characterized in that by the

Adjusting devices (8a, 8b), the bearing point position of the adjusting part (13) on an intermediate lever (9) is adjustable.

16. adjusting mechanism according to claim 14 or 15, characterized in that the transmission ratio by the at least two

Adjusting devices (8a, 8b) can be changed differently.

17, adjusting mechanism according to one of claims 14 to 16, characterized in that an adjusting device (8a) is provided for a coarse adjustment of the transmission ratio.

18. Actuator mechanism according to claim 17, characterized in that the adjustment device (8a) for the coarse adjustment comprises a toothed rack (37) on which a user-adjustable element (38) engages with at least one tooth (39).

19. Actuating mechanism according to one of claims 14 to 18, characterized in that at least one further adjusting device (8b) is provided for a fine adjustment of the transmission ratio.

20. Actuator mechanism according to claim 19, characterized in that the adjusting device (8b) for the fine adjustment comprises at least one user-operable eccentric (30).

21. Actuating mechanism according to claim 20, characterized in that the

Adjustment of the eccentric (30) corresponds to the tooth width of the rack (37).

22, adjusting mechanism according to one of claims 1 to 21, characterized in that the actuating part (13) via at least two mutually articulated lever (31, 31 ') is connected to the actuating arm (2).

23. Actuating mechanism according to claim 22, characterized in that the

Bearing point position of the actuating part (13) on at least one of the levers (31, 31 ') is variable.

24. Arrangement with a movable furniture part, in particular a furniture flap, with an adjusting mechanism according to one of claims 1 to 23.