EP2607592A2 - Furniture fitting for a mobile furniture item - Google Patents

Abstract

The fitting (11) has a damper (43) e.g. oil damper, attenuating movement of a movable furniture piece. The damper has an incidence surface (46) on which an application element (48) is impinged for introduction of a damping effect. The application element is equipped with an application surface (47) and formed at the fitting or at a furniture body (12). The incidence surface is provided during absence of the application element in an attenuation start position (49). An adjustment part i.e. pivotal lever, adjusts the attenuation start position and is attached to the damper.

Description

The invention relates to a furniture fitting for a movable furniture part, in particular for driving a flap, a door or a drawer, with at least one damper for damping the movement of the movable furniture part when retracting into the closed position and / or extending into the open position, wherein the damper a Impact surface, on which for the initiation of a damping effect trained on a furniture fitting or on the furniture body, provided with a loading surface impinging member is impinged, and wherein the impingement surface is in the absence of the biasing member in a damping start position.

A furniture fitting of this kind is for example from the DE 10 2008 025 265 A1 known. There, the damper sits on a support arm of the furniture fitting, wherein the slide protruding from the damper housing strikes upon retraction in the closed position on a stationary stop element.

In the case of a movable furniture part designed as a furniture flap, there is a need to adjust the damper to different valve sizes and flap weights. This is done by changing the damping stroke. Heavy furniture flaps need more damping stroke than light weight. In the case of the prior art described above, the position of the damper becomes changed on the support arm by the damper rearranged, that is attached to another postion on the support arm. As a result, the slider is not completely retracted when closing the furniture flap in the damper housing, that is, the damping stroke is not fully utilized, which is sufficient for lightweight furniture flaps.

The object of the invention is to provide a furniture fitting of the type mentioned, with which can be implemented in a simple and cost-effective manner, a reliable damping of different movable furniture parts.

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

The furniture fitting according to the invention is characterized in that the damper adjusting means are assigned for adjusting the damping start position.

The adjusting means thus allow a simple and quickly performed Umpositionieren the damper and thus the setting of a new, adapted to the design of the movable furniture part, for example, in terms of its weight and size, new damping start position. Disassembly of the damper and reassembly at a different position, such as required in the furniture fitting of the aforementioned prior art, is no longer necessary.

In a further development of the invention, the damper has a damper housing and a damper piston displaceably guided in the damper housing, on which the impact surface is located, the adjustment means being designed in such a way that that for adjusting the damping start position, the damper housing with the damper piston is adjustable.

In a particularly preferred manner, the adjusting means comprise a bearing housing in which the damper housing is mounted displaceably. In this case, therefore, a kind of housing-in-housing solution is realized, wherein the damper housing can be moved by means of the adjusting means in the bearing housing.

It is particularly expedient to store the bearing housing by means of a housing pivot bearing with pivot bearing housing pivot axis on the furniture body.

In a particularly preferred manner, the adjusting means comprise an adjustment element which can be actuated manually and / or by means of an actuating tool and which is coupled with the damper in such a manner that the adjustment of the damping start position can be achieved by means of a pivoting movement.

Conveniently, the adjusting element is designed pivot lever-like, wherein upon actuation thereof a pivoting movement is caused, which in particular causes a pivoting of the bearing housing about the bearing housing pivot axis.

As an alternative to manual actuation or actuation by means of an actuating tool, it is also possible for electrical adjustment means to be provided. Conveniently, in this case, the adjusting element can be actuated electrically.

In a further development of the invention, the adjusting element has an actuating section designed, for example, for engagement of the actuating tool and an adjusting section connected to the damper housing.

The adjustment section may be designed in the manner of a bolt which is guided through the bearing housing by means of a passage opening.

Conveniently, the through hole is formed slot-like and serves as a sliding guide for the bolt.

In a development of the invention, the damper is designed as a fluid damper. It can be designed, for example, as a gas or in particular as an oil damper.

In a particularly preferred manner, the Beaufschlagungsglied is designed such that after setting a new Dämpfungsstartpostion of the damper, the beginning of damping, that is, the contact of the loading surface of the Beaufschlagungsglieds with the impact surface on the damper takes place substantially at the same opening position of the movable furniture part with respect to the furniture body. In the case of a designed as a furniture flap movable furniture part, it is possible that the damping when closing substantially at the same opening angle of the furniture flap, for example 15 ° or 30 ° begins, regardless of whether a light or heavy furniture flap is to be damped.

In a particularly preferred manner, the Beaufschlagungsglied is formed by a curved piece with curved trained loading surface. Conveniently, the curve piece is formed on the fitting. However, it could alternatively be located on the furniture body.

Of course, it is possible to equip the furniture fitting with several dampers, each of which works on the principle of the invention. For example, it would be possible alternatively or additionally to dampen the retraction of the movable furniture part in the open position.

The invention further comprises a piece of furniture, with at least one movable furniture part, such as flap, door or drawer, characterized by a furniture fitting according to one of claims 1 to 13.

Figur 1

ein bevorzugtes Ausführungsbeispiel des erfindungsgemäßen Möbelbeschlags im montierten Zustand einerseits am Möbelkorpus und andererseits an einem bewegbaren Möbelteil in Form einer Möbelklappe, wobei sich die Möbelklappe in einer Offenstellung befindet, ab der bei der Bewegung in Schließrichtung die Dämpfung beginnt,

Figur 2

den Möbelbeschlag von Figur 1, wobei sich die Möbelklappe in der Schließstellung befindet,

Figur 3

den Möbelbeschlag gemäß Figur 1, wobei die Dämpfungsstartposition des Dämpfers geändert ist und sich die Möbelklappe wieder in einer Offenstellung befindet, ab der in Schließrichtung die Dämpfung beginnt und

Figur 4

den Möbelbeschlag von Figur 3, wobei sich die Möbelklappe in der Schließstellung befindet.

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 furniture fitting according to the invention in the assembled state on the one hand on the furniture body and on the other hand on a movable furniture part in the form of a furniture flap, wherein the furniture flap is in an open position, starting from the movement in the closing direction, the damping begins

FIG. 2

the furniture fitting of FIG. 1 , wherein the furniture flap is in the closed position,

FIG. 3

according to the furniture fitting FIG. 1 , wherein the damping start position of the damper is changed and the furniture flap is again in an open position, from the beginning in the closing direction, the damping and

FIG. 4

the furniture fitting of FIG. 3 , wherein the furniture flap is in the closed position.

The FIGS. 1 to 4 show a preferred embodiment of the furniture fitting according to the invention 11. The embodiment and function of the furniture fitting 11 will be explained below purely by way of example with reference to a so-called flap fitting, which is intended to drive a furniture flap 13 of a piece of furniture 10 and on the one hand to a furniture body 12 and on the other hand to the furniture flap 13 to assemble. Instead of a movable furniture part is therefore spoken of a furniture flap 13 below. It is of course possible to use the furniture fitting 11 for driving a furniture cover, such as a furniture chest, a door, such as refrigerator door, or a drawer.

According to the preferred embodiment, the furniture fitting 11 is thus arranged on a piece of furniture 10, preferably a cabinet, in particular a top cabinet, which is attached in height to a building wall in a suspended manner. The furniture body 12 of the cabinet has mutually opposed vertical side walls 14, of which in the drawing only one is visible, a bottom wall, a ceiling wall 15 and a rear wall and includes a limited of these walls furniture compartment 16 with furniture compartment opening, the furniture compartment 16 optionally through a shelf (not shown) may be divided in height.

The front of the furniture compartment 16 is associated with the furniture flap 13, which occupies a vertical position in its closed position and the furniture compartment 16 closes ( Figures 2 and 4 ). The furniture flap 13 can be adjusted from this closed position after covering a certain opening angle in an access to the furniture compartment 16 gestattende open position.

The movable guide the furniture flap 13 between the closed and the open position takes over the furniture fitting 11th

The furniture fitting 11 has a first support arm 17 and a second support arm 18 pivotally connected to a first and second body side pivot axes 19, 20 hinged to a furniture body 12 fitting part 21 and on the other hand to first and second flap-side pivot axes 22, 23 pivotally connected to a the furniture flap 13 attached holding part 24 are stored. The two support arms 17, 18 are each formed as a toggle lever and each have a korpusseitges and a flap-side support arm 25a, 25b; 26a, 26b. The Tragarmteile 25a, 25b of the first support arm 17 and the Tragarmteile 26a, 26b of the second support arm 18 are each connected via a connecting joint 27, 28 pivotally connected to each other. The two support arms 17, 18 are pivotally connected to each other via a connection by means of a further connection joint 29. Overall, this results in playable manner according to the preferred embodiment, a support arm assembly in the form of a 7-joint arrangement. In principle, however, the invention would also be applicable to a 4-joint arrangement.

The furniture fitting 11 has a Selbstanzugeinrichtung with a power drive 30 for initiating a closing force in the closing direction and after exceeding a dead center to initiate an opening force in the opening direction on the furniture flap 13. The power drive 30 is attached to the fitting 21, which in turn on the side wall 14 of the furniture body 13 is arranged. The power drive 30 provides in conjunction with a built-up of several gear levers gearbox 31 for self-tightening. Conveniently, the power drive 30 only on one side, that is, on one of the two furniture fittings 11, which sit on the left and right of the side wall of the furniture compartment 16, attached.

The power drive 30 has the form of a spring accumulator. The spring accumulator has a base element 32, which is fastened about a bearing axis 33 pivotably on the body-side fitting part 21. On the base member 32, a lock slider 34 is held axially adjustable along an adjustment axis 35. The lock slider 34 is acted upon by means of compression springs 36, which are supported on the one hand against the base member 32 and on the other hand against the lock slider 34, in the direction of an extended position with force. Thus, the compression springs 36 do not bend transversely to the adjustment axis 35, a mandrel (not shown) associated with the adjusting slide each compression spring, which dips in the turns of the coil springs designed as compression springs 36 and the respective compression spring 36 protects against lateral bulging.

The power drive 30 is connected via the lever mechanism 31 to the support arm arrangement, that is to say according to the exemplary embodiment with the 7-joint arrangement. The lever mechanism 31 comprises a rocker-like force deflection lever 37, which is pivotably mounted about a body-side lever pivot axis 38. The reversing lever pivot axis 38 subdivides the force deflection lever 37 into a first lever arm 39a which is assigned to the power drive 30 and a second lever arm 39b facing away from it. At the first lever arm 39a is a coupling member 40 in the form of a coupling pin, which engages the lock slider 34 of the power drive 30, whereby the force exerted by the power drive 30 force is introduced to the force deflection lever 37. The coupling member 40 thus represents the force introduction interface between the power drive 30 and the Kraftumlenkhebel 37. At the second lever arm 39b of the Kraftumlenkhebels 37 is a push rod 41 which is pivotally connected via a push rod joint 42 with the power swing lever 37. At which the force deflection lever 37 facing away End of the push rods 41, a second push rod hinge 43 is provided, via which the push rod 41 is pivotally mounted on the Tragarmanordnung.

The furniture fitting 11 also has at least one damper 43 for damping the movement of the furniture flap 13 when entering the closed position and / or extending into the open position. According to the preferred exemplary embodiment, a single damper 43 is provided which damps the retraction movement of the furniture flap 13 in the closed position.

The damper 43 is designed as a fluid damper, in particular oil damper, being provided as a damping medium hydraulic oil. Structurally, the damper 43 is designed according to the preferred embodiment as a so-called piston damper. In addition, the damper 43 has a damper housing 44, in which a damper piston 45 is guided displaceably. The damper piston 45 could also be referred to as a slide. In the damper housing 44 is also the damping medium, which is displaced in the retraction movement of the damper piston 45 in the damper housing 44, whereby the damping effect arises.

At the front end side of the damper piston 45 is an incident surface 46, which interacts during the damping process with a subsequently described in more detail Beaufschlagungsfläche 47 a Beaufschlagungsglieds 48.

The impact surface 46 of the damper piston 45 is in the absence of the biasing member 48 in a damping start position 49th

In the FIGS. 1 and 3 is also the damping start position 49 of the damper 43 is shown, in which case the situation is shown immediately at the start of the damping process. The damper 43 are associated with adjusting means, via which an adjustment of the damping start position 49 is possible.

For this purpose, the adjusting means comprise a bearing housing 50 in which the damper housing 44 is displaceably mounted. The bearing housing in turn is mounted by means of a housing pivot bearing 51 pivotally mounted on the furniture body 12. The adjusting means further comprise an adjusting element 52 which is so coupled in motion with the damper 43, that the adjustment of the damping start position 49 is achieved by means of a pivoting movement. The adjusting element 52 is formed like a pivot lever and can be operated manually, mechanically, for example by means of an actuating tool, or electrically, whereby a pivoting movement generated by means of the adjusting element 52 is transferable to the bearing housing 50, which in turn via the bearing housing pivot bearing 58 on the damper housing 44 and thus transmits to the damper piston 45 and the impact surface 46.

The adjusting element 52 is according to a preferred embodiment by means of an actuating tool, such as screwdriver actuated. Such as in the FIGS. 1 and 3 illustrated, the adjusting element 52 has an actuating portion 53 for engagement of the actuating tool. The adjusting element 52 further has an adjusting portion 54 which is connected to the damper housing 44. The adjusting portion 54 is configured in the manner of a bolt and attached to the underside of the pivot lever-like actuating portion 53 and on the other hand firmly connected to the damper housing 44. The bolt-like adjustment portion 54 is passed through a slot-like passage opening 55 through the bearing housing 50. The pivotal path of the actuating portion 53 is by two end stops 56a, 56b limited. The end stops 56a, 56b are formed by the ends of a curved guide curve 47 lying in the pivoting radius of the pivoting lever-type actuating section 53. The pivoting of the actuating portion 53 causes pivoting of the bearing housing 50 about the stationary bearing housing pivot axis 58. In this case, the adjustment portion 54 moves along the guide curve 47, wherein a compensation on the slot-like passage opening 55 takes place.

As in particular in the Figures 2 and 4 shown, the Beaufschlagungsglied is designed as a curved piece and has a curved-shaped Beaufschlagungsfläche 47. The curve piece sits here according to the preferred embodiment of furniture fitting 11 and that on one of the support arms 17, 18th

The FIGS. 1 and 2 show the situation when damping a relatively heavy furniture flap. The damper 43 is swung relatively far forward towards furniture compartment opening. FIG. 1 shows the situation when the impact surface 47 hits the curve piece on the impact surface 46 on the damper piston 45. So the situation at the very beginning of the damping process. In this position, the furniture flap 13 has a defined opening angle, for example 15 ° or 30 °. The damping process takes place when closing the furniture flap from the in FIG. 1 Open position shown in the closing direction in the in FIG. 2 shown closed position instead. In this case, the curved application surface 47 passes over the impact surface 46 of the damper piston, the damper piston 45 being pressed in at the same time, that is, entering the damper housing 44. During the damping process, the curved loading surface 47 passes over the impact surface 46 on the damper piston 45 via a defined overpass distance, which corresponds to the closing path of the in FIG. 1 shown furniture flap 14 in the FIG. 2 shown closed position corresponds. In this case, a certain damping stroke of the damper piston 45 is utilized, which substantially corresponds to the maximum available damping stroke in heavy valves. The remaining residual stroke x is in Fig. 2 shown.

The Figures 3 and 4 show the situation when damping a relatively light flap. Here it is not necessary to take advantage of the full damping stroke. Therefore, the damping start position 49 is changed. This is done by engaging an operating tool, such as screwdriver, in the operating portion 43 of the adjusting 52. By pivoting the pivot lever-like actuating portion 43 in the counterclockwise direction pivots the bearing housing 50 and thus the damper piston 45 with damper housing 44 also in the clockwise direction around the bearing housing -Schwenkachse 58. The FIG. 3 again shows the situation at the beginning of the damping process. It is essential that the furniture flap 13 occupies the same open position as before the relatively heavy furniture flap 13. The damping thus begins regardless of the type of furniture flap to be damped 13 at substantially the same opening angle of the furniture flap 13. The impact surface 46 of the damper piston 45 is in turn in contact with the loading surface 47 of the urging member 48, so the curve piece. Unlike the in FIG. 1 However, the impact surface 46 is now shown at the rear end of the curved piece on a nose-like end piece 59 provided with a different inclination relative to the rest of the curved piece. During the subsequent steaming process, the application surface 47 in turn passes over the incident surface 46 via a defined overtravel distance. This overtravel in turn causes the insertion of the damper piston 45 in the damper housing 44. Due However, in the closed position of the furniture flap 13, the cam guide does not retract the damper piston 45 far enough into the damper housing, that is to say, less damping stroke was called up. However, the damping stroke is sufficient to dampen this relatively lightweight furniture flap. The residual lift y is in FIG. 4 where y> x.

Claims (14)

Furniture fitting for a movable furniture part, in particular for driving a furniture flap (13), a door or a drawer, with at least one damper (43) for damping the movement of the movable furniture part when entering the closed position and / or extending into the open position, wherein Damper (43) has an impact surface (46) on which for the introduction of a damping effect on the furniture fitting (11) or the furniture body (12) formed, with a loading surface (47) equipped Beaufschlagungsglied (48) is impinged, and wherein the impact surface (46) is in the absence of the biasing member (48) in a damping start position (49), characterized in that the damper (43) adjusting means for adjusting the damping start position (49) are assigned. Furniture fitting according to claim 1, characterized in that the damper (43) has a damper housing (44) and a guided in the damper housing (44) guided damper piston (45) on which the impact surface (46), wherein the adjusting means are formed in that the damper housing (44) with the damper piston (45) is adjustable in order to adjust the damping start position. Furniture fitting according to claim 2, characterized in that the adjusting means comprise a bearing housing (50) in which the damper housing (44) is displaceably mounted. Furniture fitting according to claim 3, characterized in that the bearing housing (50) by means of a housing pivot bearing bearing housing pivot axis (58) is pivotally mounted on the furniture body (13) storable. Furniture fitting according to one of the preceding claims, characterized in that the adjusting means comprise an adjustment element (52) which can be actuated manually and / or by means of an actuating tool and which is coupled in motion with the damper (43) in such a way that the adjustment of the damping start position (49) can be achieved by means of a pivoting movement. Furniture fitting according to claim 5, characterized in that the adjusting element (52) is designed pivot lever-like and its actuation causes a pivoting movement, which in particular causes a pivoting of the bearing housing (50) about the bearing housing pivot axis (58). Furniture fitting according to one of the preceding claims, characterized in that electrical adjusting means are provided, in particular an electrical actuation of the adjusting element (52) is possible. Furniture fitting according to one of claims 5 to 7, characterized in that the adjusting element (52) has an actuating portion (53) formed, for example, for engaging an actuating tool, and an adjusting portion (54) connected to the damper housing (44). Furniture fitting according to claim 8, characterized in that the adjusting portion (54) is designed in the manner of a bolt which is guided by means of a passage opening (55) through the bearing housing (50). Furniture fitting according to claim 9, characterized in that the passage opening (55) is formed slot-like and serves as a sliding guide for the bolt. Furniture fitting according to one of the preceding claims, characterized in that the damper (43) as a fluid damper, in particular oil damper is formed. Furniture fitting according to one of the preceding claims, characterized in that the engagement member (48) is formed by a curved piece with a curved loading surface (47). Furniture fitting according to claim 12, characterized in that the curve piece is formed on the furniture fitting (11). Furniture, with at least one movable furniture part, such as furniture flap (13), door or drawer, characterized by a furniture fitting (11) according to one of claims 1 to 13.

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