EP3359766B1 - Flap holder for a furniture flap - Google Patents

Description

The invention relates to a flap holder for a furniture flap, which can be adjusted between a closed and an open position, with a lever to which the furniture flap can be attached, the lever being pivotable about a pivot axis, and with a clamping lever which can be attached to the Lever is adjustably coupled, and wherein the clamping lever is mounted in a stationary manner.

Such a flap holder is from DE 10 2006 013 423 A1 known. A lever is used that has two arms. The lever is pivotably fixed in place on the furniture body via a pivot axis. Two lever arms extend on both sides of the pivot axis. With the first lever arm, the lever can be attached to the flap to be moved. The second lever arm is connected to an adjusting lever. The adjusting lever together with a toggle arm forms a toggle mechanism. For this purpose, the adjusting lever and the toggle lever arm are connected to one another in the area of a pivot point. A tension spring is arranged in the area of the pivot point. The tension spring interacts with the toggle lever in such a way that the flap mounted on the first lever arm is to be held automatically in various open positions. This known flap holder has the disadvantage that it requires a relatively large amount of space and is therefore perceived as a nuisance in the interior of a furniture body. Furthermore, it has been shown that the furniture flap is not in every intermediate position on the Path of movement between the open and the closed position can be maintained automatically. Furthermore, from the DE 20 2010 015094 U1 a flap holder with the features of the preamble of claim 1 is known.

It is therefore the object of the invention to provide a flap holder of the type mentioned at the outset, which on the one hand takes up little installation space and at the same time enables the furniture flap to be held securely over the entire adjustment path between the open and closed position.

This problem is solved by a flap holder with the features of claim 1.

According to the invention, therefore, simple lever kinematics are made possible, which require little installation space. In particular, the action of the energy store on the end facing away from the coupling piece achieves a design in which the individual pivot points of the lever kinematics remain closely associated with one another over the entire travel range. In addition, it has been shown that the fitting according to the invention works clearly and reliably in that the energy store does not engage in a toggle lever mechanism, as in the prior art, but introduces its force directly on the clamping lever at the end remote from the coupling piece. In this way it can be achieved that the furniture flap is held reliably in every setting position between the open and the closed position. Furthermore, a damper is used according to the invention, which with its damping force dampens the movement of the lever directly or indirectly from the open position or a partially open position in the direction of the closed position, at least over a partial path. If the furniture flap is moved from its open position into the closed position with momentum, the damper prevents uncontrolled movement of the furniture flap and in particular prevents the furniture flap from hitting the furniture body hard, which would be perceived as uncomfortable. The damper can preferably be adjusted in its damping force and/or in terms of its damping path by means of a damping adjustment. In this way, the damping characteristics can be changed, which is particularly advantageous when using the flap holder in connection with furniture flaps of different weights. For this purpose, it is provided in particular according to the invention that the damping adjustment carries a connector which is coupled to a slide, and that the slide interacts with a lever part of the lever kinematics. In addition or as an alternative, it can also be provided that the position of the damper can be adjusted. It is also conceivable that the contact point of the lever kinematics with the damper is adjustable. The damping behavior of the flap holder can also be changed in this way.

In addition or as an alternative, it can also be provided that the position of the damper can be adjusted. It is also conceivable that the contact point of the lever kinematics with the damper is adjustable. The damping behavior of the flap holder can also be changed in this way.

According to a preferred embodiment variant of the invention, it can be provided that the lever has a holding lug which is designed in the form of a plug-in lug such that a fastening section for coupling the furniture flap can be plugged onto it. In this way, the furniture flaps can be coupled to the fitting quickly and easily.

The lever of the flap holder according to the invention can preferably have a coupling point on which the coupling piece is pivotably attached, and that the coupling point on the lever closer to the connection point for the Furniture flap is arranged as the pivot axis of the lever. In this way, the pivot axis of the lever arm can be brought close to the stationary bearing of the clamping lever. With this measure, a further reduced construction volume can be achieved.

A small number of parts can be achieved in that the coupling piece is connected to a lever arm of the tensioning lever, with a projection in the form of a further lever arm being formed on the lever arm, and that the energy store is coupled directly or indirectly to the projection.

In practical use, it may be necessary to adapt the flap holder to different flap weights. In the case of the flap holder according to the invention, this is possible in a simple manner in that the tensioning lever carries an adjusting element with which the connection point of the energy store to the tensioning lever can be adjusted. It can be provided in particular that the adjusting element has a thread on which a bearing piece with a counter-thread is held. In this way, a stepless adjustment of the connection point can be achieved. The actuating element preferably has an operating part which is accessible from the outside of the housing. This means that the adjustment can be made easily with the fitting installed, without the housing having to be removed or opened for this purpose.

The function of the flap holder can be further improved in that a fixing element is used which is releasably held, in particular latched, on a blocking element in the open position. The open position of the furniture flap is clearly signaled to the user via this function.

A possible variant of the invention can be characterized in that a damping element is provided which is designed to dampen the adjustment movement of the lever at least over part of the adjustment path from the closed position to the open position. The opening movement can thus be dampened. In particular, damping can be provided in the last area of the adjustment path. The furniture flap is then slowed down shortly before it reaches the open position and brought into the open position in a damped manner.

The invention is explained in more detail below with reference to an exemplary embodiment illustrated in the drawings.

Figur 1:

Einen Klappenhalter für eine Möbelklappe in Seitenansicht,

Figur 2:

Den Klappenhalter gemäß Figur 1 mit geöffnetem Gehäuse,

Figur 3:

Den Klappenhalter gemäß den Figuren 1 und 2, wobei eine Lagerplatte demontiert ist,

Figur 4:

Die Darstellung gemäß Figur 3, wobei jedoch ein Schieber demontiert ist,

Figur 5:

Die Darstellung gemäß Figur 4 mit einem montierten Dämpfer und

Figur 6:

die Darstellung gemäß Figur 3, wobei jedoch der Klappenhalter in der Schließstellung steht.

Figur 7:

den Klappenhalter gemäß den Figuren 1-6 in einer veränderten Bauvariante

Show it:

Figure 1:

A flap holder for a furniture flap in side view,

Figure 2:

According to the flap holder figure 1 with open case,

Figure 3:

The flap holder according to the figures 1 and 2 , with one bearing plate dismantled,

Figure 4:

The representation according to figure 3 , but with one slider dismantled,

Figure 5:

The representation according to figure 4 with a mounted damper and

Figure 6:

the representation according to figure 3 , but with the flap holder in the closed position.

Figure 7:

the flap holder according to the Figures 1-6 in a modified version

figure 1 shows a flap holder with a housing 10 and a lever 20 protruding from the housing 10. figure 2 shows the flap holder according to figure 1 , wherein the housing 10 is opened. In particular, one half of the housing has been removed to provide an insight into the inner workings of the flap holder. As this representation shows, the flap holder comprises two bearing plates 11, of which figure 2 only one can be seen. This bearing plate 11 is in figure 3 removed so that the second bearing plate 11 can be seen. The two bearing plates 11 are held at a distance from one another by a spacer 50 and are fastened to this spacer 50 . Lever kinematics are housed between the two bearing plates 11 and are explained in more detail below.

The lever kinematics includes a lever 20 which has a holding attachment 21 in the form of a plug-in attachment. With the retaining attachment 21, the flap holder can be attached to a furniture flap. Either a folding flap or a single flap can be attached to the flap holder. In the case of a folding flap, two flaps are arranged one above the other and are connected to one another via a central hinge. The hinge axis of the central hinge is aligned horizontally. Usually the flap holder with the lower flap is the folding flap connected. For this purpose, a profile section can be pushed onto the plug-in attachment (retaining attachment 21) and attached to the retaining attachment 21. At the end facing away from the holding attachment 21, the profile section is coupled to a joint. This hinge is connected to the lower folding flap. Such folding flaps are known from the prior art and for example in DE 10 2006 013 423 A1 described. As already mentioned above, the flap holder can also be used to pivot an individual flap to a furniture body, with the pivot axis of the individual flap also running horizontally.

The lever 20 has a fastening section 22 adjoining the holding attachment 21 . The lever 20 is connected to the two bearing plates 11 about a pivot axis 24 . For this purpose, each bearing plate 11 has a connecting part 80. This connecting part 80 can, for example, be bent out of the bearing plate 11 as a reinforcement and can therefore be connected to it in one piece. In this way, a rigid coupling of the lever 20 in the region of the pivot axis 24 is effected. The lever 20 also has a coupling point 23. At this coupling point 23, a coupling piece 30 can be attached pivotably. As in the present exemplary embodiment, the coupling piece 30 can consist of two partial sections which are preferably of identical construction. In figure 3 one of the sections is shown. The second section is attached parallel to the first section on the opposite side of the lever 20 at the coupling point 23 . The coupling piece 30 is arcuate. At its end facing away from the lever 20 , the coupling piece 30 has a coupling point 32 . The coupling piece 30 is pivotably coupled to a clamping lever 40 via this coupling point 32 . How figure 3 can be seen, the coupling piece 30 has a fixing element 31. This fixing element 31 can be arranged between the two sections of the coupling piece 30, as shown here. In particular, it can be such that it connects the two sections to one another in a reinforcing manner.

The clamping lever 40 is designed as a 2-armed lever and has a first lever arm which extends from a bearing 42 . Furthermore, the clamping lever 40 comprises a shoulder 43 as the second lever arm, which is also connected to the bearing 42 . The clamping lever 40 is fixed by means of the bearing 42 with a preferably pivotally connected to both bearing plates 11. In this case, the bearing 42 as well as the pivot axis 24 can be fastened on the connecting part 80 in order to achieve a torsion-resistant fastening.

On the clamping lever 40, a slide 90 is mounted in a linearly adjustable manner in the area of the projection 43. The slider 90 works with a stop 25 together. The stop 25 is attached to the lever 20 . In figure 3 the slider 90 has been removed for a better overview. As can be seen from this representation, a damping adjustment 100 is mounted on the shoulder 43 of the clamping lever 40 . An operating part 101 has this damping adjustment. The damping adjustment 100 can advantageously, as shown here, have a screw element in a particularly simple manner. The control panel 101 is designed as a screw head, which is followed by a thread. Furthermore, the damping adjustment 100 includes a connector 102, which is guided in a linearly adjustable manner on the damping adjustment 100. In the present exemplary embodiment, for example, the connector 102 can have an internal thread in the form of a nut. When the operating element 101 is adjusted, the connector 102 can therefore be continuously adjusted in the longitudinal direction of the thread. How figure 4 can be seen, the damping adjustment 100 is freely rotatable on the clamping lever 40 in the circumferential direction, but held axially immovable.

An adjusting element 70 is also fastened on the clamping lever 40 in the area of the projection 43 . Like the damping adjustment 100, the adjusting element 70 can also be designed as a screw element. The actuating element 70 again has an operating part 72. A thread 73 can be connected to the operating part 72, as shown here. A holder 71 in the form of a nut is screwed onto the thread 73 . When the operating part 72 is rotated, the holder 71 is adjusted continuously along the thread 73 . The actuating element 70 is freely rotatable in the circumferential direction on the extension 43 of the tensioning lever 40, but is held immovable in the axial direction. A bearing piece 65 is fastened to the holder 71 and is preferably connected to the holder 71 in one piece. The bearing piece 65 is used for coupling an energy store 60. The energy store 60 has two holders 61 and 62. The holder 61 is by means of a pivot bearing 66 on at least one of the two bearing plates 11 are preferably pivoted to both bearing plates 11. The holder 61 is provided with a receptacle into which at least one clamping element 62 is inserted. In the present case, two tensioning elements 62 in the form of compression springs are inserted into the holder 61 . The ends of the clamping elements 62 opposite the holder 61 are set in receptacles of the holder 63 . The holder 63 includes a coupling member 64. This coupling member 64 is connected to the bearing piece 65, with a pivot bearing being formed between the coupling member 64 and the bearing piece 65.

In figure 5 is one to figure 1 modified assembly view shown. How figure 5 can be seen, the coupling piece 30, consisting of its two sections is fully assembled. The two sections enclose the lever 20 and the clamping lever 40 in the area of the coupling point 23 and the coupling point 32, which guarantees stable load transmission.

How figure 5 can be seen further, the clamping lever 40 takes a damper 110 on. In the present case, the damper 110 is designed as a fluid damper. It has a cylinder 111 in which a piston 112 is linearly adjustable against a fluid. The use of an air damper or a liquid damper, in particular an oil damper, is conceivable. The damper 110 also has a piston rod 113 connected to the piston 112 . The piston rod 113 is connected to the clamping lever 40 at the end remote from the piston 112 . the inside figure 3 The slider 90 shown can now be placed over the damper 110 like a housing. In this case, a fastening section is provided in the slide 90, to which the cylinder 111 is coupled. The connector 102 of the damping adjustment 100 is positively connected to the slide 90 in the opposite direction to the damping direction. On the other hand, it is free in relation to the slide 90 in the damping direction. In this way, when the connector 112 is adjusted counter to the damping direction, the slide 90 can be adjusted linearly on the clamping lever 90 . The damper 110 preferably comprises a tension spring which causes it to be in its basic position in the in figure 5 shown extended position is held. So if the slider 90 is adjusted in the opposite direction to the damping direction, the cylinder 111 of the damper 110 is automatically pushed by the clamping force the spring and always remains in contact with the slider 90. Such as figure 2 can be seen, the slide 90 has a support portion 91 which cooperates with a stop 25 of the lever 20. When the lever 20 is adjusted from the in figure 2 The position shown presses the stop 25 on the support portion 91. Since the slide 90 is now free in the damping direction with respect to the damping adjustment 100, the slide 90 can be adjusted linearly against the damping force of the damper 110.

As a result of adjusting the damping adjustment 100, the damping path of the damper 110 can therefore be adjusted. In this way, the damping behavior of the damper 110 can be changed. In particular, the impact point of the stop 25 on the support section 91 of the slide can be adjusted. The available damping path can thus be varied.

figure 2 shows that the clamping lever 40 is made up of 2 structurally identical, preferably mirror-symmetrical components, which are placed next to one another along the parting plane running in the plane of the drawing. Thus, the two components of the clamping lever 40 enclose the damping adjustment 100, the actuating element 70 and the bearing piece 65, such as figure 2 reveals. The operating parts 101 and 72 of the damping adjustment 100 and of the actuating element 70 are now accessible through openings in the clamping lever 40, as shown in FIG figure 2 reveals. In this way, a tool, for example a screwdriver, can be inserted laterally through the corresponding openings of the clamping lever 40 so that it can engage with the operating parts 101 and 72 . The operating part 101 and 72 are formed like a crown. In this way, a kind of bevel gear is formed with the screwdriver, which enables the adjusting element 70 and the damping adjustment 100 to be rotated.

The Figures 3 , 4 and 6 show that an arm 51 is attached to the spacer 50. The arm 51 carries a blocking element 52 at its end remote from the spacer 50. This blocking element 52 can have one or two spring elements, preferably in the form of spring arms 53,54. A receptacle is formed between the two spring elements. First of all, a Guide section formed, which merges into a latching section. The blocking element 52 is designed to work together with the fixing element 31 of the coupling piece 30 . in the in figure 3 shown open position, the fixing element 31 is releasably held in the latching receptacle of the blocking element 52 . In the closed position according to figure 6 however, the fixing element 31 is disengaged from the locking element 52. When the flap holder, starting from the in figure 6 shown closed position is moved into the open position, the fixing element 31 slides along one or both spring arms 53,54, as a result of which the spring arms 53,54 bend apart. The fixing element 31 can thus snap into the latching receptacle of the blocking element 52 .

The function of the flap stay is explained in more detail below. If the flap holder starting from the in figure 3 shown open position is adjusted, the lever 20 moves counterclockwise via the coupling point 23, the coupling piece 30 is pivoted. As a result, the fixing element 31 disengages from the blocking element 52. At the same time, the coupling piece 30 pulls the clamping lever 40 at the coupling point 32. The coupling piece 30 is therefore designed as a tension element. The cocking lever 40 is pivoted about the stationary bearing 42 in a counter-clockwise direction. The energy store 60 applies a compressive stress acting between the pivot bearing 66 and the bearing piece 65 . When the clamping lever 40 is adjusted counterclockwise, the energy store 60 is therefore adjusted against a compressive force. In this way it is ensured that a furniture flap fixed to the lever 20 is held securely in every position between the open and the closed position. It can therefore be easily brought from the open to the closed position by a user with little effort. At the same time, the damper 110 dampens the closing movement. This prevents the furniture flap from hitting the furniture body uncomfortably hard when it is thrown into the closed position with force. During its movement from the open position to the closed position, the coupling point 23 passes through the connecting line between the coupling point 32 and the pivot axis 24, as this figure 6 represents. As soon as the connecting line is crossed and the dead center position is thus passed, the energy store 60 presses via the lever kinematics the lever 20 to the closed position. This ensures that the furniture flap is safely brought into the closed position and held there on the last part of the travel path. Conversely, if the furniture flap is now opened, the lever 21 must first be pulled out of the closed position against the force of the energy store 60 until the coupling point 23 crosses the connecting line between the pivot axis 24 and the coupling point 32 . Then the direction of the force is reversed and the furniture flap is again automatically held in each open position.

In figure 6 is further symbolized that with an adjustment of the actuating element 70, the bearing piece 65 can be adjusted. In this way, the effective lever arm between the bearing piece 65 and the bearing 42 increases. Accordingly, the flap holder can be adjusted with the adjusting element 70 to flap weights of different weights.

It is a special feature of the flap holder according to the invention that the coupling point 23 is adjusted in an arc in front of the pivot axis 24 during the adjustment from the open position in the direction of the closed position, which promotes a compact design.

Another special feature is that the coupling piece 30 has an exposed contour section 33 . The lever kinematics moves into this in the closed position with the area that has the pivot axis 24, like this figure 6 reveals. In the present exemplary embodiment, the exposed contour section 33 is formed by an arcuate contour of the coupling piece 30 . A compact design can also be achieved with this measure.

figure 7 shows the flap holder according to the Figures 1-6 in a modified version. As can be seen from this representation, a damping element 55 is arranged on the arm 51 of the spacer 50 . In the present case, the damping element is designed as a piston damper with a cylinder and a piston adjustable therein against a fluid. The damping element 55 forms an impact point 56. This impact point works with the fixing element 31 of the Coupling piece 30 together. Of course, the damping element 55 can also be arranged at a different point and work together with any other stop of the lever kinematics. The fixing element 31 (or the stop) is arranged in such a way that the displacement of the flap holder from the closed position into the open position is damped. The damping does not take place over the entire travel but only in the last area. In this way, the furniture flap can be brought into its open position in a damped manner. The energy store 60 is designed in such a way that it works against the damping force of the damping element 55 . The furniture flap is thus automatically brought into the open position and dampened in the process.

It is clear from the above that a furniture flap can be securely adjusted between an open and a closed position (and vice versa) with the flap holder according to the invention, with the furniture flap being able to be held securely automatically in any intermediate position of the adjustment path. For this purpose, the flap holder has a lever 20 to which the furniture flap can be fastened and which can be pivoted about a pivot axis 24 . The flap holder also has the clamping lever 40 which is adjustably coupled to the lever 20 by means of the coupling piece 30 . The clamping lever 40 is mounted in a stationary manner. Furthermore, the energy store 60 is coupled directly or indirectly to the tensioning lever 40 , specifically at the end facing away from the coupling piece 30 .

Claims (9)

1. A flap holder for a furniture flap which is adjustable between a closed and an open position, comprising a lever (20) to which the furniture flap is attachable and which is pivotable about a pivot axis (24), and a tensioning lever (40), which is coupled adjustably to the lever (20) via a coupling piece (30), the tensioning lever (40) being mounted in a stationary manner,

   an energy store (60) being coupled to the tensioning lever (40) indirectly or directly at the end facing away from the coupling piece (30), and

   a damper (110) being used which with its damping force damps the movement of the lever (20) indirectly or directly from the open position or a partial open position in the direction of the closed position at least on a partial path,

   characterized

   in that the damper (110) can be adjusted in its damping force and/or with regard to its damping path by means of a damping adjustment, and/or in that the damper (110) is adjustable in its position, and/or in that the contact point of the lever kinematics with the damper (110) is adjustable in its position, and

   in that the damping adjustment (100) carries a connector (102) which is coupled to a slider (90), and in that the slider (90) interacts with a lever part of the lever kinematics.
2. Flap holder according to claim 1,
   characterized
   in that the lever (20) has a retaining projection (21) which is designed in the form of a plug-in projection in such a way that a fastening section for coupling the furniture flap can be plugged onto it.
3. Flap holder according to claim 1 or 2,
   characterized
   in that the lever (20) has a coupling point (23) to which the coupling piece (30) is pivotably fastened, and in that the coupling point (23) on the lever (20) is arranged closer to the connection point for the furniture flap than the pivot axis (24) of the lever (20).
4. Flap holder according to any one of claims 1 to 3,
   characterized
   in that the coupling piece (30) is connected to a lever arm (41) of the tensioning lever (40), an extension (43) in the form of a further lever arm being integrally formed on the lever arm (41), and in that the energy store (60) is coupled indirectly or directly to the extension (43).
5. Flap holder according to any one of claims 1 to 4,
   characterized
   in that the clamping lever (40) carries an adjusting element (70) with which the connection point of the energy store (60) to the clamping lever (40) can be adjusted.
6. Flap holder according to claim 5,
   characterized
   in that the adjusting element (70) has a thread (73) on which a bearing piece (65) with a mating thread is held.
7. Flap holder according to claim 5 or 6,
   characterized
   in that the adjusting element (70) has an operating part (72) which is accessible from the outside of the housing (10).
8. Flap holder according to any one of claims 1 to 7,
   characterized
   in that a fixing element (31) is used which, in the open position, is releasably held, in particular latched, on a locking element (52).
9. Flap holder according to any one of claims 1 to 8,
   characterized
   in that a damping element (55) is provided, which is designed to damp the movement of the lever (20) at least on a partial path of the movement path from the closed position into the open position.

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