EP1840309B1 - Lid holder for a furniture piece - Google Patents

Abstract

The holder has safe-deposit box (16). The holder is movable between closing position (18) of a safe-deposit box into a furniture body (12). The two independent pressure accumulators (28,36,37,29,43,44) are assigned to the corpus side end region of the operating lever (24). The opening motion of the furniture flap supports an energy accumulator predominantly and does not exert swivel movement, in a swivel area of the clamping position up to a dead center position. The other energy accumulator exerts clamping force particularly in the swivel area of the closing position up to the dead center position.

Description

The invention relates to a flap holder for a furniture flap, which is adjustable between a closable compartment in a furniture body closing position and an upwardly moved open position, with at least one adjusting lever which is articulated on the one hand via a pivot axis stationary on the furniture body and on the other hand on the furniture flap.

A flap holder of this kind is for example from the DE 10 2004 019 785 A1 Known, wherein there disclosed flap fitting at the first adjusting axis facing end portion of the actuating lever has an eccentric to the first control axis, the movement behavior of the flap force moderately influencing control curve, which is associated with a held by a spring device against the control cam pressure piece, so that the pressure piece of a the pivoting position of the actuating lever dependent pivoting moment exerts on the control lever. In such flap fittings can be achieved by a suitably selected course of the control cam that holds the flap on its way from the closed position to the open position practically in any intermediate position by itself. Accordingly, the force to be applied by the user for opening and closing is small. The control cam is contoured such that in a sub-dead center by the Pressure piece a holding the flap in the closed position holding force is exercised.

In such damper holders, the spring force is adapted to the flap weight, that is, in a heavy furniture flap, the spring device must apply a high spring force so as to be able to apply a force acting against the high flap weight large pivoting moment in the opening direction. Since the cam is contoured so that after exceeding or falling below the dead center, a change of the pivoting moment takes place, the spring force of the spring means also affects the locking force in the closed position. The furniture flap is therefore held with a relatively large clamping force in the closed position, which must be overcome by the user when opening to the dead center.

In the US-A-3820866 discloses a door control system for a door of a dishwasher. The hinged door in the manner of a furniture flap front door has a lever which is articulated on the one hand via a pivot axis on the furniture body and on the other hand on the door, wherein the body side end portion of the actuating lever at least two independently acting energy storage in the form of tension springs are assigned, of which a power accumulator mainly supports the opening movement of the furniture flap and exerts virtually no pivoting moment in a pivoting range from the closed position to a dead center, while the other power accumulator exerts a closing force, especially in the pivoting range from the closed position to the dead center.

The object of the invention is to provide a flap holder of the type mentioned, in which the on the furniture flap acting locking force is independent of the force acting in the opening direction force.

This object is achieved by a flap holder with the features of independent claim 1. Further developments of the invention are shown in the subclaims.

The flap holder according to the invention is characterized in that the body side lever end of the actuating lever is associated with a first cam portion, which is associated with a first spring means against the curved portion held first pressure piece, wherein the first curve portion has an eccentric to the pivot axis curve portion, so that when passing over the pressure piece acting in the opening direction of the flap weight opposite pivoting moment is exerted on the furniture flap, wherein the control disk has a second curve area, which is associated with a held by a second spring means against the second curve area second pressure piece, wherein the second curve area a to Has pivot axis eccentric curve portion, so that when passing the second pressure piece acting in the closing direction pivoting moment is exerted on the furniture flap, wherein the first curve area a arcuate curve portion and the second curve portion has a circular arc-like curve portion or another eccentric, when passing the second pressure piece acting in the opening direction pivoting moment, curve portion, and wherein in the closing area of the furniture flap of the first curve area with its arcuate curve section on the first pressure piece and the second curve area with his eccentric curve section abuts the second pressure piece and when opening the flap then to the closing area of the first curve area with its eccentric curve section on the first Pressure piece and the second curve portion rests with its arcuate curve portion or its other eccentric curve portion on the second pressure piece.

In the eccentric curve sections so pivoting moments can be transferred to the furniture flap, while in the circular arc-like curve sections substantially no pivoting moment is initiated. Thus, for example, while the eccentric curve section is "in action" in the first curve section and a pivoting moment is exerted by means of the associated first pressure piece, the arcuate curve section or the further eccentric curve section may be "in action" on the second curve section, so that substantially no pivoting torque is present here or an additional pivoting moment acting in the opening direction is exerted. For the force in the opening direction, therefore, the spring force of the first spring means and the contouring of the first curve area may be responsible, if necessary by supporting the second spring means, if the second pressure piece is in the further eccentric curve portion, while independently for the locking or closing force in the closed position is responsible only the spring force of the second spring device.

In a further development of the invention, the two curved areas are formed on two mutually opposite circumferential areas of the control disk.

It is possible for at least one of the two curve regions to provide an end stop assigned to the open position for the assigned pressure piece. This prevents the furniture flap from being pivoted beyond the open position. Preferably, both provided on the first and on the second curve area in each case an end stop. The end stop can be, for example be formed by a trough-like depression in the control disk. Of course, it is also possible to form a projection on the control disk instead of the depression.

The two spring devices can each be coupled in a fixed position to a furniture body mounted on the fitting plate and on the other hand via a first and second, the first and second pressure piece bearing force transmission element with the control disk. The first power transmission element can be formed for example by a pivotally mounted on the fitting plate pressure piece carrier. The second power transmission element is preferably formed by a pivotally mounted on the fitting plate pivoting lever.

In order to prevent a violent striking the furniture flap to the cabinet body when retracting into the closed position, a damping device may be provided in the region of the body-side lever end of the actuating lever. In a particularly preferred manner, the damping device is located between the pivot lever and the fitting plate and can be actuated by the pivoting movement of the pivot lever. The damping device may be stationarily arranged on the pivot lever and have an actuating part that can be pressed onto an actuating projection formed on the fitting plate.

In a further development of the invention, the control disk is formed by two body parts comprising the body-side lever end on both sides. Alternatively, it is possible to form the control disk in one piece, in which case the adjusting lever can be arranged on the left or right of the control disk.

Figur 1

ein bevorzugtes Ausführungsbeispiel des erfindungsgemäßen Klappenhalters, wobei ein Teil eines Schrankes mit einer einem Schrankfach zugeordneten Möbelklappe im Vertikalschnitt gezeigt ist, so dass der Klappenhalter in Draufsicht erscheint (die Möbelklappe befindet sich in ihrer Schließstellung) und wobei eine Gesamtdarstellung (kleines Bild) des Schrankfachs gezeigt ist,

Figur 2

eine perspektivische Ansicht auf den Klappenhalter von Figur 1 ohne Schrankfach und Möbelklappe dargestellt, wobei eine der Schließstellung der Möbelklappe zugeordnete Stellung des Stellhebels gezeigt ist,

Figur 3

den Klappenhalter von Figur 1 in Teildarstellung und Gesamtdarstellung (kleines Bild) des Schrankfaches und der Möbelklappe, wobei sich die beiden Druckstücke an einer Umkehrposition entlang ihrer zugeordneten Kurvenbereiche befinden,

Figur 4

eine perspektivische Darstellung des Klappenhalters von Figur 3 ohne Schrankfach und Möbelklappe,

Figur 5

den Klappenhalter von Figur 1 in Teildarstellung und Gesamtdarstellung (kleines Bild) des Schrankfaches und der Möbelklappe, wobei sich die Möbelklappe in einer geöffneten Zwischenstellung befindet und

Figur 6

eine perspektivische Darstellung der Klappenhalters von Figur 5 ohne Schrankfach und Möbelklappe.

A preferred embodiment of the invention is illustrated in the drawing and will be explained in more detail below. In the drawing show:

FIG. 1

a preferred embodiment of the flap holder according to the invention, wherein a part of a cabinet with a cabinet compartment associated furniture flap is shown in vertical section so that the flap holder appears in plan view (the furniture flap is in its closed position) and showing an overall view (small picture) of the cabinet compartment is

FIG. 2

a perspective view of the flap holder of FIG. 1 shown without cabinet compartment and furniture flap, wherein one of the closed position of the furniture flap associated position of the control lever is shown,

FIG. 3

the flap holder of FIG. 1 in partial representation and overall representation (small image) of the cabinet compartment and the furniture flap, wherein the two pressure pieces are located at a reversal position along their associated curve areas,

FIG. 4

a perspective view of the valve holder of FIG. 3 without compartment and furniture flap,

FIG. 5

the flap holder of FIG. 1 in partial representation and overall view (small picture) of the cabinet compartment and the furniture flap, wherein the furniture flap is in an open intermediate position and

FIG. 6

a perspective view of the valve holder of FIG. 5 without cupboard and furniture flap.

The FIGS. 1 to 6 show a preferred embodiment of the valve holder 11 of the invention. The flap holder 11 is arranged on a cabinet, in particular wall unit, which is attached hanging in height on a building wall. The furniture body 12 of the cabinet has two opposite, vertical side walls 13, of which in the drawing only one is visible, a bottom wall 14, a ceiling wall 15 and a rear wall and contains a limited by these walls cabinet 16. The front of the cabinet compartment 16th is associated with a furniture flap 17, in its off FIG. 1 resulting closed position 18 assumes a vertical position and the cabinet compartment 16 closes. The furniture flap 17 can be adjusted from this closed position 18 in an access to the cabinet 16 gestattende open position, the opening movement on the in the Figures 3 and 5 shown intermediate positions upwards takes place. The furniture flap 17 is described below by way of example with reference to a two-piece furniture flap 17, which could also be referred to as a folding flap. Of course, the flap holder 11 according to the invention could also be used in conjunction with a one-piece furniture flap 17.

The furniture flap 17 is divided into two parts by way of example, as mentioned above, and is formed by an upper flap part 19 and a lower flap part 20, which are hinged together on a hinge axis 21. The hinge axis 21 is usually formed by two hinges 22 each arranged on one of the two lateral end regions of the furniture flap 17. The hinge 22 may be an upper hinge part to be fastened to the upper flap part 19 and have a lower hinge part 20 to be fastened lower hinge part, which are hinged to each other by means of a hinge pin 21 forming the hinge pin or the like. The two hinge parts can be attached to the cabinet compartment facing inside the flap parts 19, 20. The hinge axis 21 can be arranged near the joint between the two flap parts 19, 20 or even with a certain distance above or below the joint.

The upper flap portion 19 is also still mounted about a hinge axis 23 pivotally mounted on the furniture body 12. This hinge axis 23 is preferably located on the ceiling wall 15 of the furniture body 12th

In the closed position, the lower flap part 20 connects to the underside of the upper flap part 19 in extension thereof, so that the two flap parts 19, 20 are coplanar with each other. When transferring into the open position, the two flap parts 19, 20 perform opposing pivoting movements, in which the upper flap part 19 pivots away from the cabinet compartment 16 and thus from the furniture body 12, while the lower flap member 20 from its coplanar to the upper flap portion 19 about the hinge axis 21 for Cabinet 16 and thus the furniture body 12 pivots out, so that the furniture flap 17 is folded, so to speak.

At least one of the two lateral end portions of the cabinet, a control lever 24 is arranged, which is hinged on the one hand via a pivot axis 25 fixed to the furniture body 12 and the other on the furniture flap 17, in particular on the lower flap part 20. The body-side lever end 26 of the control lever 24 is assigned a control disk 27 in exemplary assumption.

The control disk 27 has two corner regions 28, 29 situated on opposite circumferential regions of the control disk 27. The control disk 27 is coupled with the adjusting lever 24, that is to say the control disk 27 is also swiveled during pivoting of the control lever 24. For this purpose, the control disk 27 has two disk parts 30, 31 which are attached to the left and right of the actuating lever 24 at this, so take the lever 24 in their midst. Alternatively, a one-piece control disc can be used. The two curve regions 28, 29 each have an eccentric curve section 32, 33 and at least the first curve section 28 has a substantially arcuate curve section 34. According to the preferred embodiment, the second curve section 29 also has a circular arc-like curve section 35. The function of the curve sections 32 to 35 will be explained in more detail below.

The first curve portion 28 is associated with a first pressure piece 37 held against the first curve portion 28 via a first spring means 36. The first spring means 36 is articulated on the one hand hinged to a mounting plate 38 mounted on the side wall 13 and on the other hand articulated to a first power transmission element 39, which in turn is pivotally mounted about a pivot axis 40 on the fitting plate 38 and carries the first pressure piece 37. The first spring device is shown here by way of example in the form of a gas spring 36. Alternatively, a helical compression spring would be used. The first pressure piece 37 is formed by a rotatably mounted on the power transmission element roller on which the first curve portion 28 rolls along. The gas spring 36 may be adjustably mounted via adjusting means along the force transmission element 39. As adjusting can according to the DE 10 2004 019 785 A1 For example, an adjusting spindle extending in the adjustment direction 41 on the first force transmission element 39 can be rotated and fixedly mounted in its longitudinal direction. The gas spring 36 can sit on the adjusting spindle and be in threaded engagement with this. Twisting the adjusting spindle 42 by means of a suitable tool, such as a screwdriver, the gas spring 36 moves along the adjusting spindle. As a result, the leverage ratios present on the first force transmission element 39 and thus also the pivoting moment exerted by the first force transmission element 39 on the control lever 24 via the roller 40 change.

The second curve portion 29 is associated with a held by a second spring means 43 against the second curve portion 29 second pressure piece 44. The second pressure piece 44 is seated on a second power transmission element in the form of a pivot lever 45, which is mounted pivotably about a pivot lever pivot axis 46 on the fitting plate 38. The second pressure piece 44 is also designed as a roller, on which the second curved portion 29 rolls over during pivoting of the adjusting lever 24. The second spring means 43 is fixed on the one hand fixed to the fitting plate 38 and on the other hand connected to the pivot lever 45. The second spring device is shown by way of example in the form of a helical tension spring 43, which pulls the pivot lever 45 together with the second pressure piece 44 into abutment with the second curve area 29. The pivot lever 45 also has an end portion 47 extending beyond the circumference of the fitting plate 38, on which a damping device in the form of a damping cylinder 48 is seated. The damping cylinder 48 has a cylinder housing 49 which is fixed to the end portion 47 of the pivot lever 45 and can be mitverschwenkt during pivoting of the pivot lever 45. In the cylinder housing 49 is an actuating part in the form of a control piston 50 guided linearly displaceable. The actuating piston 50 cooperates with a formed on the fitting plate 38 nose-like actuating projection 51 such that upon retraction of the furniture flap 17 in the closed position 18 of the actuating projection 51 comes to rest on the actuating piston 50 and pushes it into the cylinder housing 49, whereby the retraction movement damped becomes.

In the closed position 18 of the furniture flap 17, the second pressure piece 44 is located in a receiving recess 52 at the end of its eccentric cam portion 33, while the first pressure piece 37 rests against the arcuate curve portion 34 at the opposite first curve portion 28. In this situation, substantially no pivoting moment is exerted on the adjusting lever 24 by the first pressure piece 37 by the abutment on its arcuate curve portion 34; it could also be said that the first pressure piece 37 is ineffective. By contrast, the second pressure piece 44 exerts a pivoting moment in the closing direction by contact with the eccentric curve portion 33, that is to say the furniture flap 17 is pressed onto the furniture body 12 with a clamping force. When the furniture flap 17 is opened, the eccentric curve section 33 of the second curve section 29 now passes over the second pressure piece 44, whereby a locking force is still exerted on the furniture flap 17, since the arcuate curve section 34 is still in abutment with the first curve section 28 on the opposite first curve section 28 Pressure piece 37 is, so that no pivoting moment is initiated here. The locking force is even greater because of the pivoting moment co-determining lever arm - vertical distance between the normal by the tangent at the contact point between the pressure piece 44 and cam portion 33 and pivot axis 25 - initially becomes larger.

In FIG. 3 the reversal point or the dead center position is shown. In this position, the second pressure piece 44 is in abutment with the transition between the eccentric cam portion 33 and the arcuate curve portion 35. According to a further embodiment not shown, in the second curve portion of the eccentric cam portion, a further eccentric curve portion connect, which is formed is that when passing through the second pressure piece acting in an opening direction additional pivoting moment is exerted on the furniture flap. The generated in the first curve area swivel torque in the opening direction is thus supported. It is possible to form the other eccentric curve section at the second curve area as sloping down to a trough-like depression 55. This transition between eccentric and kreisbogenartigem or other eccentric curve portion 33, 35 is shown here by way of example by a hump 53. The second pressure piece 44 essentially exerts no pivoting moment on the adjusting lever, ie it is ineffective or exerts a pivoting moment in the opening direction. At the same time, it is also possible for the first pressure piece 37 to already be in contact with its eccentric curve portion 32, so that when passing over the plungers 37, 44 are not simultaneously achieved the two dead center.

If the furniture flap 17 is opened even further, the arcuate curve section 35 or the vehicle passes over Further eccentric curve section on the second curve portion 29, the second pressure piece 44, whereby this is practically ineffective and essentially no moment introduced or a moment is generated in the opening direction, while at the opposite first curve portion 28 of the eccentric cam portion 32, the first pressure piece 37 passes. There, a pivoting moment is then introduced to the adjusting lever 24, specifically in the opening direction of the furniture flap 17. This pivoting moment counteracts the flap weight, so that the opening of the furniture flap 17 is facilitated. By corresponding contouring of the eccentric curve section 32 on the first curve region 28 and optionally of the further eccentric curve section on the second curve region, it is also possible for the furniture flap 17 to remain in any open position. The opening movement of the furniture flap 17 is determined by end stops in the form of trough-like depressions 54, 55 on the one hand at the end of the eccentric curve portion 32 of the first curve portion 28 and on the other hand at the end of the arcuate curve portion 35 or other eccentric curve portion of the second curve portion 29.

When closing the furniture flap 17 reverse operations take place. The eccentric curve portion 32 of the first curve portion 28 passes over the first pressure piece 37 and that in the reverse direction, while at the opposite second curve portion 29 of the circular arc-like curve portion 35 or the other eccentric curve portion passes over the second pressure piece 44. As long as the first pressure piece 37 is still in abutment with the associated eccentric curve portion 32, a pivoting moment is exerted in the opening direction, since at the opposite second curve portion 29, the second pressure piece 44 in contact with its circular arc-like Curve section 35 or the other eccentric curve section. The reversal of the pivoting moment is then again when crossing the dead center between the respective eccentric and circular arc-like or other eccentric curve sections 32 to 35. From here namely the first pressure piece 37 is again in contact with its arc-like curve portion 34, while the second pressure piece in contact with its eccentric cam portion 33, so that a pivoting moment is exerted in the closing direction.

To generalize, it should be noted that at least two independently acting force accumulators 28, 36, 37, 29, 43, 44 are assigned to the body-side end region of which an energy accumulator 28, 36, 37 predominantly supports the opening movement of the furniture flap 17 and in one Pivoting range from the closed position to a dead center almost no pivoting moment exerts, while the other power storage 29, 43, 44 exerts a closing force, especially in the pivoting range from the closed position to the dead center.

Claims (10)

1. Flap holder for a furniture flap (17) which is adjustable between a closed position (18) closing a shelf (16) in a furniture carcass (12) and an open position in which it is moved upwards, with at least one actuating lever (24) attached at one end over a swivel axis (25) immovably to the furniture carcass (12) and at the other end to the furniture flap (17), characterised in that the carcass-side lever end (26) of the actuating lever (24) is assigned a control disc (27), with a first cam section (28) which is assigned a first clamping pad (37) held against the cam section (28) by a first spring device (36), wherein the first cam section (28) has a cam section (32) eccentric to the swivel axis (25) so that in the event of over-travel of the clamping pad (37), a pivot moment opposite to the flap weight and acting in the opening direction is exerted on the furniture flap (17), and has a second cam section (29) which is assigned a second clamping pad (44) held against the second cam section (29) by a second spring device (43), wherein the second cam section (29) has a cam section (33) eccentric to the swivel axis (25) so that in the event of over-travel of the second clamping pad (44), a pivot moment acting in the closing direction is exerted on the furniture flap (17), wherein the first cam section (28) has an arc-like cam section (34) and the second cam section (29) an arc-like cam section (35) or a further eccentric cam section exerting a pivot moment acting in the opening direction in the event of over-travel of the second clamping pad (44), and wherein in the closing area of the furniture flap (17) the first cam section (28) abuts the first clamping pad (37) with its arc-like cam section (34) and the second cam section (29) abuts the second clamping pad (44) with its eccentric cam section (33), and on opening of the flap adjacent to the closing area the first cam section (28) abuts the first clamping pad (37) with its eccentric cam section (32) and the second cam section (29) abuts the second clamping pad (44) with its arc-like cam section (35) or its additional eccentric cam section.
2. Flap holder according to claim 1, characterised in that the two cam sections (28, 29) are formed on two opposite peripheral areas of the control disc (27).
3. Flap holder according to claim 1 or 2, characterised in that a limit stop (54, 55) for the assigned clamping pad (37, 44) assigned to the open position is provided on at least one of the two cam sections (28, 29).
4. Flap holder according to claim 3, characterised in that the limit stop is formed by a trough-like recess (54, 55) in the control disc (27).
5. Flap holder according to any of the preceding claims, characterised in that the two first spring devices (36, 43) are each connected at one end immovably to a mounting plate (38) fitted to the furniture carcass (12) and at the other end to the control disc (27) via a first or second force transfer element (39, 45) carrying the first or second clamping pad (37, 44).
6. Flap holder according to claim 5, characterised in that the second force transfer element is formed by a pivot lever (45) mounted pivotably on the mounting plate (38).
7. Flap holder according to any of the preceding claims, characterised in that a damping device (48) for damping the inward movement of the furniture flap (17) into the closed position is provided in the area of the carcass-side lever end of the actuating lever (24).
8. Flap holder according to claim 7, characterised in that the damping device (48) is located between the pivot lever (45) and the mounting plate (38) and may be actuated by the pivoting movement of the pivot lever (45).
9. Flap holder according to claim 8, characterised in that the damping device (48) is provided on the pivot lever (45) and has an actuating part (50) which may be pressed on to an actuating projection (51) formed on the mounting plate (38).
10. Flap holder according to any of the preceding claims, characterised in that the control disc (27) is formed by two disc parts (30, 31) encompassing the carcass-side lever end (26) on either side.

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