EP1785567B1 - Fitting for a cabinet lid - Google Patents

Abstract

Fitting device has a control lever (16) forms a two-armed lever with a first lever arm (19) running between the body side control lever axis (17) and the flap side control lever axis (18) with a second lever arm (20) running between the body side control lever axis and a bearing shaft (21). The lever arrangement contains an intermediate lever (22). An intermediate lever is connected, on one hand, with control lever jointed by bearing shift and, on other hand, connected by a guiding axle with a pivoted support element loaded by spring force exerted from a spring device (24). The bearing shaft is pivoted to shift the second lever arm along a first guide way (26) arranged at the control lever and a guiding element (27) of the intermediate lever arranged with a distance to the bearing shaft along a second guide way (28) that is arranged at body side sitting part (8), so that the bearing shaft is shifted along the first guide way by swiveling the flap (2) and the guiding element is shifted along the second guide way in such a way that by swiveling the flap the load moment exerted from this flap onto the control lever and the support moment exerted by the spring force by the supporting element (25) and by the intermediate lever on the control lever are shifted in a same manner to hold the flap.

Description

The invention relates to a fitting device for a furniture flap which is movable between a closable a cabinet compartment in a furniture body vertical closed position and an upwardly pivoted open position, with a furniture body to be fastened on the body side fitting part and to be fastened to the furniture flap flap side fitting part, which has a Lever assembly are interconnected, which includes a control lever, which is connected on the one hand via a body-side control lever axis hinged to the body-side fitting part and on the other hand via a valve-side control lever axis hinged to the flap side fitting part.

Such a fitting device is for example from the DE 28 29 727 A1 known. It is there a fitting device for flaps, which pivot about a non-physical pivoting axis moving in space. It can be provided that the flap when opening at a distance from the top of the furniture body on the furniture body swings up so that do not interfere with the cabinet carcass front upstanding parts.

In the known fitting device, the flap in the closed position and in the open position retaining spring device is present, which also supports the opening movement, so that the opening of the flap without great force is possible. When transferring the flap into the closed position, the force acting on the flap in the opening direction must be overcome.

Proceeding from this, the present invention, the object of the invention to provide a fitting device of the type mentioned above, which makes it possible with appropriate design that the flap stops automatically on their pivoting in intermediate positions between the closed position and the open position.

This object is achieved in that the control lever forms a two-armed lever with a running between the body-side control lever axis and the valve-side control lever axis first lever arm and extending between the body-side control lever axis and a bearing axis second lever arm and that the lever assembly includes an intermediate lever, on the one hand the bearing axis is pivotally connected to the control lever and on the other hand articulated via a pivot axis with a movably mounted and loaded by a spring force exerted spring force support member, wherein the bearing axis for changing the second lever arm along a control lever arranged on the first guide track is movably mounted and with a Distance to the bearing axis arranged guide element of the intermediate lever along a arranged on the body side fitting part second guide rail is movably mounted, so that when Verschw Enken the flap, the bearing axis along the first guide rail and the guide member along the second guide rail displaced so that when pivoting the flap exerted by this on the control lever load moment and the force exerted by the spring force on the support member and the intermediate lever on the control lever To change the supporting moment in the same direction for substantially automatically holding the flap.

In this way, the flap is with appropriate design of the fitting device on their pivoting in the moment equilibrium, so that they can be released in any intermediate position and stops. It is understood that this does not apply to the particular adjacent to the closed position swivel range when a clamping force is exerted on the flap.

The fitting device according to the invention is structurally simple and consists of few individual parts.

In order to avoid having to provide a corresponding number of fitting devices adapted to the respective flap weight for differently heavy flaps, an adjustment device for adjusting the force exerted by the spring device on the intermediate lever by the spring device is provided in a particularly expedient embodiment. In this way, the support torque exerted on the control lever can be changed, so that an adaptation to the respective flap weight can be done.

Further expedient embodiments of the invention are specified in the subclaims.

Figur 1

eine erfindungsgemäße Beschlagvorrichtung in Seitenansicht in Schließstellung, wobei der Beschlag seine in einem im Vertikalschnitt dargestellten Schrank montierte Gebrauchslage einnimmt,

Figur 2

einen die Beschlagvorrichtung enthaltenden, durch eine Kreislinie angegebenen Ausschnitt aus Figur 1 in vergrößerter Darstellungsweise,

Figur 3

die Anordnung nach Figur 2, wobei die Klappe etwas geöffnet ist,

Figur 4

die gleiche Anordnung wie in Figur 2, 3, jedoch bei geöffneter Klappe und

Figur 5

die erfindungsgemäße Beschlagvorrichtung in explodiertem Zustand in Schrägansicht.

An embodiment of the fitting device according to the invention will be explained with reference to the drawing. Show it:

FIG. 1

a fitting device according to the invention in side view in the closed position, wherein the fitting its occupying position mounted in a cabinet shown in vertical section,

FIG. 2

a fitting containing the fitting, indicated by a circular section FIG. 1 in an enlarged representation,

FIG. 3

the arrangement after FIG. 2 with the flap slightly open,

FIG. 4

the same arrangement as in FIG. 2 . 3 , but with the flap open and

FIG. 5

the fitting device according to the invention in an exploded state in an oblique view.

The resulting from the drawing fitting device 1 is used for pivotally attaching a furniture flap 2 on a side wall 3 of the body of a cabinet, which is indicated in the side wall 3 parallel vertical section, so that except the arranged below the plane of the side wall 3, the closet top final ceiling wall 4th , the bottom wall 5 and the rear wall 6 of the cabinet body are shown. The flap 2 is the front of the side wall 3, one of these opposite, arranged above the plane of the side wall, the top wall 4 and the bottom wall 5 limited cabinet compartment 7 assigned. The fitting device 1 is cabinet side secured in the upper region of the side wall 3 and on the flap 2 in a flap longitudinally corresponding to far outward position. To attach the flap 2, two such fitting devices 1 are regularly required, which are arranged on the two side walls limiting the cabinet 7.

The furniture flap 2 is between a cabinet compartment closing the vertical closed position ( Figures 1 and 2 ) and an upwardly pivoted open position ( FIG. 4 ) pivotable. In this case, the pivoting does not take place, as in the case of a hinge, about a pivot axis but rather about a pivot axis which moves in space, the pivoting path being predetermined by the fitting device 1. When opening the flap 2 lifts off from the front side of the furniture body and moves with simultaneous pivoting upwards, so that it overlaps in the open position, the front portion of the cabinet body with a vertical distance, as from FIG. 4 is apparent.

The fitting device 1 has a body-side fitting part 8 to be fastened to the side wall 3 and a flap-side fitting part 9 to be fastened to the furniture flap 2. In this case, the body-side fitting part 8 includes a mounting plate 10 which is screwed by means not shown fastening screws to the side wall 3. The flap-side fitting part 9 has a fastening part 11, which is indicated only schematically, for fastening to the flap 2 and a bearing arm 12 protruding from the fastening part 11. The bearing arm 12 can protrude substantially at right angles from the flap 2.

The body-side fitting part 8 and the flap-side fitting part 9 are connected to each other via a lever arrangement. This lever assembly includes a steering lever 13 which is articulated on the one hand via a body-side steering lever axis 14 with the body-side fitting part 8 and on the other hand via a flap-side steering lever axis 15 with the flap-side fitting part 9. The lever assembly further includes a control lever 16, on the one hand via a body-side control lever axis 17 hinged to the Body-side fitting part 8 and on the other hand via a flap-side control lever axis 18 is pivotally connected to the flap-side fitting part 9. The two control lever axes 17, 18 and the two steering lever axes 14, 15 form a four-bar linkage, in such a way that the flap 2 lifts off the furniture body during opening and moves upwards over the furniture body. The flap-side control lever axis 18 and the flap-side steering lever axis 15 are arranged on the bearing arm 12 of the flap-side fitting part 9, wherein the flap-side steering lever axis 15, viewed from the flap 2, is arranged at a distance from the flap-side control lever axis 18 behind this. Further, the body-side steering lever axis 14, viewed from the front side of the furniture body, arranged at a distance from the body-side steering lever axis 14 behind this. In this way, the steering lever 13 is in the closed position ( Figures 1 and 2 ) behind the control lever 16 and passes when pivoting the flap 2 in the open position in a partially disposed below the control lever 16 position, as from the Figures 3 and 4 is apparent. The steering lever 13 has a, suitably bent L-like shape, so that it does not collide with the pivoting of the flap 2 with the fitting parts arranged in front of him.

The control lever 16 forms a two-armed lever with a between the body-side control lever axis 17 and the flap-side control lever axis 18 extending first lever arm 19 and extending between the body-side control lever axis 17 and a bearing axis 21 second lever arm 20. Furthermore, the lever assembly includes an intermediate lever 22, on the one hand articulated with the control lever 16 and on the other hand via a pivot axis 23 connected to a support member 25 via the bearing shaft 21 arranged on it is, which is movably mounted and loaded by a force exerted by a spring means 24 spring force.

The length of the second lever arm 20 is variable. For this purpose, the bearing axis 21 is movably mounted along a first guide track 26 arranged on the control lever 16. Further, a guide element 27 is arranged on the intermediate lever 22 at a distance from the bearing axis 21, which is mounted movably along a second guide track 28 arranged on the body-side fitting part 8.

When pivoting the flap, the bearing axis 21 moves along the first guide track 26, so that in the Figures 3 and 4 changed by the letter "R" specified length of the second lever arm 20. This movement of the bearing axis 21 is controlled by the guidance of the guide member 27 of the intermediate lever 22 in the second guide track 28, so that when pivoting the flap 2, the force exerted by the flap 2 on the control lever 16 load torque and the spring force on the support element 25th and change the intermediate lever 22 on the control lever 16 exerted support torque in the same direction. This means that during the pivoting process, when the center of gravity of the flap 2 away from the furniture body, so that the load torque is greater, the support torque is greater. Conversely, the support torque decreases when the center of gravity of the flap 2 approaches the furniture carcass. By appropriate design it is achieved that the flap 2 by itself remains in their respective position when it is released during its pivoting. Excluded from this is expediently the closed position adjacent pivoting range when a locking force to be generated, as will be explained.

The change in the length R of the second lever arm 20 can be adjusted by the course of the second guideway 28 targeted the respective requirements.

The two lever arms 19, 20 of the control lever 16 extend at an acute angle to each other. From the drawing also shows that in the mounted on the furniture body position of use in the closed position of the first lever arm 19 of the control lever 16, starting from the body-side control lever axis 17, down and the second lever arm 20 of the control lever 16 is directed towards the body inside. When opening the flap 2, the control lever 16 pivots outwardly, so that its first lever arm 19 protrudes from the furniture body.

The first guide track 26, which is arranged on the control lever 16 and associated with the bearing axle 21, can, as can be seen from the drawing, run linearly. Furthermore, the first guide track 26 may be directed substantially in the radial direction with respect to the body-side control lever axis 17 or slightly obliquely to this radial direction. In the case shown, it runs slightly inclined to the radial direction.

When the flap 2 is opened, the bearing axis 21 moves away from the body-side control lever axis 17 and, in the open position, reaches the opposite end region of the first guide path 26.

The first guide track 26 is expediently formed by a slot in the control lever 16. Further, the pivotal connection between the control lever 16 and the intermediate lever 22 producing bearing axle 21 of one on the intermediate lever 22 arranged pivot bearing pin 30 are formed. In this context, the intermediate lever 22 at least in the region of the control lever 16 fork-like with two control lever 16 on both sides cross fork legs 31, 32 may be formed, wherein the pivot bearing pin 30 by passing through the first guide rail 26 forming elongated hole 29 in the two fork legs 31, 32 stored is.

The second guide track 28, which can be formed by a slot 33 in the body-side fitting part 8, associated guide element 27 of the intermediate lever 22 is disposed in the region between the bearing axis 21 and the pivot axis 23 on the intermediate lever 22.

The guide element 27 projects laterally from the intermediate lever 22 and is in guide engagement with the second guide track 28. In this case, the guide element 27 may be formed by a guide pin.

The second guide track 28 assigned to the guide element 27 controls the movement of the bearing axle 21, so that, as already mentioned, it is possible to adapt to the desired change of the second guide arm 20 during the pivoting of the flap 2 by a corresponding course of the second guide track 28. Conveniently, the second guide track 26, as shown in the drawing, is arcuate, in particular circular arc-like. In this case, the second guide track 28 is bent toward the body-side control lever axis 17 facing side. Furthermore, the second guide track 28 is arranged below the body-side control lever axis 17 on the body-side fitting part 8.

As already mentioned, in the closed position of the flap 2, the intermediate lever 22 can be the flap 2 otherwise in equilibrium support torque exerting opposite closing moment on the control lever, so acting on the flap 2 a directed towards the furniture body locking force. The direction of the torque exerted by the intermediate lever 22 on the control lever 16 depends on which side of the connecting line 34 between the body-side control lever axis 17 and the pivot axis 23, the bearing axis 21 is arranged. Located in the closed position, the bearing axis 21 seen from the flap-side control lever axis from beyond the connecting line 34, this results in FIG. 2 clockwise opposing closing moment that holds the flap 2 against the furniture body. When opening the flap, the bearing axis 21 intersects the connecting line 34 (dead center), so that the torque changes direction and opposite to the load torque exerted by the flap 2, the flap automatically holding support torque is applied, which opposes the originating from the flap 2 load torque is. When closing the flap 2, reverse operations occur, so that the locking force occurs when crossing the connecting line 34.

In the mounting position of the fitting device mounted on the cabinet, said connecting line 34 is inclined in the range of about 40 ° to 60 °, in particular between 45 ° and 50 °, to the vertical.

The support element 25, which transmits the spring force to the intermediate lever 22, is expediently formed by a pivotable about a pivot axis 35 pivoting element 36 to which the spring force acts at a distance from the pivot axis 35. The distance between the pivot axis 35 and the point of engagement of the spring device 24 determines the force exerted on the intermediate lever 22 force. This opens up the following possibility: The load torque exerted by the flap 2 depends on the weight of the flap 2 and the location of the center of gravity of the flap 2 and thus on its flap height. The fitting device 1 must therefore be adapted to the respective flap, if the flap should automatically hold on its pivoting path. In order not to have to provide a different fitting device for different flaps now, it can be quite generally provided that an adjustment device for adjusting the force exerted by the spring device 24 on the intermediate lever 22 by the spring element 24 is provided. This can be achieved in the present case very simply by the fact that the point of application of the spring force on the pivot member 36 in the direction of the pivot axis 35 to and from this is adjustable. For this purpose, the pivot element 36 facing the end of the spring device 24 is connected to a pressure piece 37 which is the pivot member 36 along the double arrow 38 adjustable mounted on the pivot member 36. This can be done, for example, that the pressure piece 37 is seated on a rotatably mounted on the pivot member 36 threaded spindle 39. When rotating the threaded spindle 39, the pressure piece 37 moves along the pivoting element.

In this way, the fitting device 1 can be adjusted by adjusting the pressure piece 37 to the respective flap.

The spring means 24 is articulated on the one hand via a hinge axis 40 with the body-side fitting part 8 and on the other hand via a hinge axis 41 with the pivot member 36, ie in the present case with the connection to the pivot member 36 producing pressure piece 37.

Finally, it should also be noted that the fitting device can also be designed so that when the flap is fully open, it is exerted on the flap 2 to hold its opening force in its open position. In this case, the support torque is greater than the load torque when the damper is fully open. This can be achieved in particular by a corresponding course of the second guideway 28.

Above an embodiment of one-piece furniture flaps has been described. However, the present invention is also applicable to folding flap fittings which are formed by flap members hingedly interconnected by hinges.

Claims (26)

1. Fitting device for a furniture flap (2), which may be moved between a vertical closed position closing a shelf (7) in a furniture carcass, and a swivelled-upwards closed position, with a carcass-side fitting component (8) for fastening to the furniture carcass, and a flap-side fitting component (9) for fastening to the furniture flap (2), which are joined to one another via a lever arrangement which contains a control lever (16) which is hinged at one end via a carcass-side control lever shaft (17) to the carcass-side fitting component (8), and at the other end is hinged via a flap-side control lever shaft (18) to the flap-side fitting component (9), characterised in that the control lever (16) forms a two-arm lever with a first lever arm (19) running between the carcass-side control lever shaft (17) and the flap-side control lever shaft (18), and a second lever arm (20) running between the carcass-side control lever shaft (17) and a bearing shaft (21), and that the lever arrangement contains an intermediate lever (22) which is hinged at one end via the bearing shaft (21) to the control lever (16), and at the other end is hinged via a hinge axis (23) to a support element (25) which is movably mounted and biased by a spring force exerted by a spring device (24), wherein the bearing shaft (21) is movably mounted to shift the second lever arm (20) along a first guide track (26) located on the control lever (16), and a guide element (27) of the intermediate lever (22) located with clearance from the bearing shaft (21) is movably mounted along a second guide track (28) provided on the carcass-side fitting component (8) so that, when the flap (2) is swivelled, the bearing shaft (21) moves along the first guide track (26) and the guide element (27) along the second guide track (28) in such a way that, on swivelling of the flap (2), the load torque exerted by the latter on the control lever (16), and the support torque exerted on the control lever (16) by the spring force via the support element (25) and the intermediate lever (22), alter in the same direction to provide substantially automatic holding of the flap (2).
2. Fitting device according to claim 1, characterised in that the two lever arms (19, 20) of the control lever (16) run together at an acute angle.
3. Fitting device according to claim 1 or 2, characterised in that, in the position of use in the closed position, starting from the carcass-side control lever shaft (17), the first lever arm (19) of the control lever (16) is directed downwards and the second lever arm (20) of the control lever (16) is directed towards the inside of the carcass.
4. Fitting device according to any of claims 1 to 3, characterised in that the course of the first guide track (26) is linear.
5. Fitting device according to any of claims 1 to 4, characterised in that the first guide track (26) runs substantially in a radial direction with reference to the carcass-side control lever shaft (17), or slightly at an angle to the radial direction.
6. Fitting device according to any of claims 1 to 5, characterised in that the first guide track (26) is formed by an oblong hole (29) of the control lever (16).
7. Fitting device according to any of claims 1 to 6, characterised in that the bearing shaft (21) which creates the hinged connection between the control lever (16) and the intermediate lever (22) is formed by a swivel bearing pin (30) located on the intermediate lever (22).
8. Fitting device according to claim 7 characterised in that the intermediate lever (22), at least in the area of the control lever (16), is fork-shaped with two fork branches (31, 32) overlapping the control lever (16) on either side, and the swivel bearing pin (30) is mounted in the two fork branches (31, 32), while reaching through the oblong hole (29) forming the first guide track (26).
9. Fitting device according to any of claims 1 to 8, characterised in that the guide element (27) of the intermediate lever (22) is located in the area between the bearing shaft (21) and the hinge axis (23).
10. Fitting device according to any of claims 1 to 9, characterised in that the second guide track (28) is formed by an oblong hole (33) of the carcass-side fitting component (8).
11. Fitting device according to any of claims 1 to 10, characterised in that the guide element (27) protrudes sideways from the intermediate lever (22) and makes guiding engagement with the second guide track (28).
12. Fitting device according to any of claims 1 to 11, characterised in that the second guide track (28) has an arc-shaped course.
13. Fitting device according to claim 12, characterised in that the second guide track (28) has a circular-arc-shaped course.
14. Fitting device according to claim 12 or 13, characterised in that the second guide track (28) is curved towards the side facing the carcass-side control lever shaft (17).
15. Fitting device according to any of claims 1 to 14, characterised in that the second guide track (28) is located on the carcass-side fitting component (8) below the carcass-side control lever shaft (17).
16. Fitting device according to any of claims 1 to 16 characterised in that, in the area of the closed position, the intermediate lever (22) exerts on the control lever a closing torque opposite to the support torque.
17. Fitting device according to claim 16, characterised in that the bearing shaft (21) in the closed position, viewed from the flap-side control lever shaft (18), is arranged either side of the connecting line (34) which goes through the carcass-side control lever shaft (17) and the hinge axis (23), so that the closing torque is exerted, and on opening intersects the connecting line (34), so that the support torque holding the flap (2) and opposite to the load torque is exerted.
18. Fitting device according to claim 17 characterised in that, in the position of use, the connecting line (34) runs at an angle to the vertical in the range of around 40° to 60°, in particular between 45° and 50°.
19. Fitting device according to any of claims 1 to 18, characterised in that the support element (25) is formed by a swivel element (36) which is pivotable around a swivel axis (35), on which the spring force acts with clearance from the swivel axis (35).
20. Fitting device according to any of claims 1 to 19, characterised in that an adjusting device is provided to adjust the force from the spring device (24) exerted by the support element (25) on the intermediate lever (22).
21. Fitting device according to claim 20, characterised in that the point of application of the spring force on the swivel element (36) is adjustable towards and away from the swivel axis (35).
22. Fitting device according to any of claims 1 to 21, characterised in that the spring device (24), in particular a gas spring, is hinged immovably at one end to the carcass-side fitting component (8) and at the other end is hinged to the swivel element (36).
23. Fitting device according to any of claims 1 to 22, characterised in that the lever arrangement contains a steering lever (13), hinged at one end via a carcass-side steering lever shaft (14) to the carcass-side fitting component (8), and hinged at the other end via a flap-side steering lever shaft (15) to the flap-side fitting component (9).
24. Fitting device according to claim 23, characterised in that the two control lever shafts (17, 18) and the two steering lever shafts (14, 15) form a hinge square in such a way that, on opening, the flap (2) lifts up from the furniture carcass and moves upwards over the furniture carcass.
25. Fitting device according to claim 24, characterised in that the flap-side control lever shaft (18) and the flap-side steering lever shaft (15) are arranged on a bearing arm (12) of the flap-side fitting component (9) which protrudes from the flap (2) in the position of use, while the flap-side steering lever shaft (15), viewed from the flap (2), is arranged behind and with clearance from the flap-side control lever shaft (18).
26. Fitting device according to claim 25, characterised in that the carcass-side steering lever shaft (14), viewed from the end face of the furniture carcass, is arranged behind and with clearance from the carcass-side steering lever shaft (14).

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