DE102017126366A1 - Flap fitting for a furniture, side wall of a furniture body and furniture with a side wall - Google Patents

Abstract

The invention relates to a flap fitting (1) for a furniture, comprising a lever mechanism (20) with a plurality of levers for guiding a flap of the furniture and a damping unit (50) with a damper (51) for damping the flap when approaching an end position the damper (51) is coupled via a lever chain (52) to one of the levers of the lever mechanism (20). The flap fitting (1) is characterized in that the lever chain (52) of the damping unit (50) has a dead center, whereby a unidirectional movement of the one lever of the lever mechanism (20) is converted into a bidirectional movement on the damper (51). The invention further relates to a side wall (2) for a furniture body, in which such a flap fitting is used or integrated, and a piece of furniture with furniture body and a side wall (2) with such a flap fitting (1).

Description

The invention relates to a flap fitting for a furniture, comprising a lever mechanism with a plurality of levers for guiding a flap of the furniture and a damping unit. In this case, the damping unit has a damper for damping the flap when approaching an end position, wherein the damper is coupled via a lever chain with one of the levers of the lever mechanism. The invention further relates to a side wall of a furniture body and a piece of furniture with a side wall.

Furniture, in particular kitchen furniture or apartment furniture such as base cabinets or wall cabinets, usually have a forwardly open furniture body, are mounted on the guided over fittings movable furniture parts. Flaps are often used as movable furniture parts, in particular for wall cabinets for closing the furniture body, which are mounted on at least one, usually two, laterally arranged flap fittings. The flap fittings allow the flap to be opened upwards (pivoting up), the flap being e.g. can be pivotable about a horizontally extending imaginary pivot axis arranged in the upper region of the furniture body. Other upward opening movements of a flap are also conceivable.

The lever mechanism of the flap fitting is usually designed in several parts as a multi-jointed lever mechanism, so that a so-called door bearing lever, to which the flap is attached, performs a combined pivoting and sliding movement or a pivoting movement, which takes place about a pivot axis, outside of the flap fitting and as a rule is also outside the furniture body.

A flap fitting of the type mentioned is from the document CN 204826984 U known. In this flap fitting, a linear damper is coupled via said lever chain with one of the levers of the lever mechanism, which guides and carries a furniture flap. The coupling takes place inter alia via a guide curve, which is designed so that the damper is actuated only when approaching the flap to the closed position and thus becomes active. From a certain opening position of the damper damper is not active and thus does not hinder free movement of the flap. A damping of an opening movement when approaching the fully open position of the flap is not provided.

It is an object of the present invention to provide a flap fitting of the type mentioned, in which a movement in the closed and the fully open end position is damped. In this case, the flap fitting should be as compact as possible be built, so that it can also be integrated into a side wall of a furniture body. It is another object to provide a side wall for a furniture body or furniture with such a flap fitting and with its advantages.

This object is achieved by a flap fitting or a side wall or a piece of furniture with the features of the respective independent claim. Advantageous embodiments and further developments are the subject of the dependent claims.

An inventive flap fitting of the type mentioned above is characterized in that the lever chain of the damping unit has a dead center, whereby a unidirectional movement of the lever of the lever mechanism is converted into a bidirectional movement on the damper.

According to the invention thus a unidirectional (ie running in one direction) movement of the flap - tapped on one of the levers of the lever mechanism - implemented in a pendulum motion on the damper, whereby the damper starting from a middle open position both when closing, as well as when opening the door in the (same) direction in which damping takes place is actuated. Thus, with just one damper, both the closing movement and the opening movement are damped when approaching the respective end position. By using only one damper for both end positions of the flap fitting can be made very compact. The flap fitting can thus be incorporated into a side wall of the furniture body or inserted into a built-in from the front side of the side wall bag in the side wall. Alternatively, it would also be possible to arrange the flap fitting in the side wall so that at least one side wall of the flap fitting or a housing of the flap fitting substantially forms a plane with the side wall.

In an advantageous embodiment of the flap fitting, the lever chain at least two two-sided lever, which are connected to each other by a lever arm via a transmission lever. The dead center is given by the fact that connection joints of the transmission lever are in a straight line with a rotation axis of one of the two-sided lever. One of the two-sided lever, for example, be an angle lever whose other lever arm is in communication with the lever of the lever chain. This connection can be made an operating lever.

In a further advantageous embodiment of the flap fitting, the damper is a linear damper with a cylinder and a piston with a piston rod. The damper is doing with the Cylinder or the piston rod pivotally attached to a housing of the flap fitting. The other element can be easily connected to the lever chain. The lever chain and the pivotal mounting of the damper, the unidirectional pivotal movement of a lever lever mechanism during an opening or closing operation of the flap on a bidirectional back and forth movement of the piston rod (or the cylinder) is transmitted. In an alternative embodiment, a rotary damper can be used.

In a further advantageous embodiment of the flap fitting, the lever mechanism forms a sieve joint, whereby a suitable combination of pivoting and translational movement is achieved for the guided flap.

Here, a pivotally mounted on a housing of the flap fitting support lever serve as the lever with which the lever chain is connected. Preferably, the support lever is a two-sided lever and has a support arm and an actuating arm, wherein the support arm is connected to other levers of the lever mechanism and the actuating arm is connected to the lever chain. The lever chain can thus be arranged in a simple manner outside the space occupied by the lever mechanism.

A side wall according to the invention for a furniture body is characterized in that such a flap fitting is used or integrated. An inventive furniture with a furniture body and a guided flap is characterized by such a furniture body with at least one side wall with inserted or integrated flap fitting. This results in the advantages mentioned in connection with the flap fitting. In particular, a furniture can be provided with a guided flap, the interior of which can be used in its full size, which can be freely designed and looks visually appealing.

• 1 - 4 jeweils eine Seitenansicht eines Ausführungsbeispiels eines Klappenbeschlags in verschiedenen Öffnungsstellungen mit geöffnetem Gehäuse;
• 5 der Klappenbeschlag der vorherigen Figuren mit verschlossenem Gehäuse in einer geschlossenen Stellung;
• 6 der Klappenbeschlag der vorherigen Figuren mit verschlossenem Gehäuse in einer teilgeöffneten Stellung; und
• 7 eine Seitenplatte eines Möbelkorpus mit einem integrierten Klappenbeschlag in einer isometrischen Ansicht.

The invention will be explained in more detail below with reference to exemplary embodiments with the aid of figures. The figures show:

• 1 - 4 in each case a side view of an embodiment of a flap fitting in different open positions with the housing open;
• 5 the flap fitting of the previous figures with closed housing in a closed position;
• 6 the flap fitting of the previous figures with closed housing in a partially open position; and
• 7 a side panel of a furniture body with an integrated flap fitting in an isometric view.

In the 1 to 6 is a first embodiment of a flap fitting 1 in a closed position ( 1 . 5 ), various partially open positions ( 2 . 3 and 6 ) and a fully open position ( 4 ) reproduced by the flap fitting and not shown here flap. The 1 to 4 show the flap fitting in a side view, the 5 and 6 in an isometric view.

In the description, terms such as above, below, left, right refer exclusively to the exemplary representation chosen in the respective figures.

The terms front and rear are usually related to an opening movement of the guided flap. The front side is a side facing the user.

Both 1 to 4 is a housing 10 the flap fitting 1 each shown open on one side to the internal structure of the flap fitting 1 to be able to represent. In all figures, like reference numerals designate like elements. For reasons of clarity, not every element in all Figures is provided with a reference numeral in the figures.

The housing 10 in the present case consists of two side plates 11 of which in the 1 to 4 only the back is reproduced, formed by a partially encircling frame 12 (see. 5 . 6 ) are spaced apart and aligned parallel to each other. Through the side plates 11 and the frame 12 lead a plurality of rivets 13 (see. 5 . 6 ), with which the housing 10 and thus the flap fitting 1 is held together. Instead of rivets and other fasteners such as screws can be used. At the illustrated flap fitting 1 are all other components on the side plates 11 fastened, for example, also with rivets or bolts passing through one or both of the side plates 11 to lead.

The flap fitting 1 has a lever mechanism 20 with five levers or arms, which at seven points of articulation with each other or with the housing 10 are connected. The flap fitting 1 is thus designed as a Siebengelenkscharnier, wherein the flap fitting alternatively as a four-bar linkage or may be embodied as another joint arrangement The lever mechanism 20 includes a door lever 21 as the ultimate link in the leverage 20 that has an adjusting device 30 with a mounting plate 31 connected is. To this mounting plate 31 gets the from the flap fitting 1 assembled flap to be mounted. The adjusting device 30 allows an adjustment movement of the mounting plate 31 and thus the guided flap against the door bearing lever 21 ,

The door lever 21 is at the in 1 upper pivot point with a transmission lever 22 rotatably connected. In a lower hinge point in the figure is the door bearing lever 21 with a lever 23 connected. The lever 23 and the transmission lever 22 are in turn at a control lever 24 hinged. The transmission lever 22 is at its rear end with a support arm 251 a support lever 25 connected, with the support lever 251 again on the housing 10 is rotatably mounted. This leverage 20 thus forms a Siebengelenk.

As in particular from the 4 can be seen, are the individual levers or arms of the lever mechanism 20 shaped so that they form an approximately elongated arrangement in the open position of the flap. When opening or closing process performs the outer element of the lever mechanism 20 , the door bearing lever 21 , a combined rotary and translational movement, by which an attached flap is not only pivoted, but is moved forward so that it can be guided with its edge over an upper body edge. In this way, for example, the entire opening of the furniture body is accessible.

The flap fitting 1 further comprises a spring unit 40 , which holds the flap spring-loaded in both the closed and in the fully opened state. Especially in the fully opened state is the spring unit 40 being able to compensate for the weight of the flap so that it remains in the open position without any further locking lever.

The spring unit 40 includes a spring package 41 with a plurality of compression springs 411 , One in the figures right side of the spring package 41 is adjustable in position on a spindle unit 42 stored. One in the figures left side of the spring package 41 acts on a shorter end of an angle-shaped intermediate lever 43 , which is designed as a two-sided lever and pivotable about an axis 44 on the housing 10 is attached. At the end of the second, free lever arm of the intermediate lever 43 is a pressure roller 431 attached to a control section 221 the transmission lever 22 acts.

The control section 221 runs at its edge dome-shaped with a rising (left side of the control section 221 in the figures) and a falling edge (right side of the control section 221 in the figures). When the pressure roller 431 abuts the falling edge, performs a pressure of the pressure roller 431 in addition, the lever mechanism 20 to move towards the closed position. Accordingly, the angemontierte flap is closed or held closed. During the opening movement, a dead center will pass through when the pressure roller is just on the top of the control section 221 located. In the course of the opening movement is the pressure roller 431 at the rising edge of the control cam, wherein the pressure of the pressure roller 431 This leads to the lever mechanism 20 continue to move in the direction of the open position. Accordingly, the opening movement is supported and the flap held in the open position.

By means of the spindle unit 42 can be the suspension point of the spring package 41 be moved and so the bias of the springs 411 be varied to the pressing force of the pressure roller 431 to adapt to the weight and size of the flap.

In the 5 and 6 is an isometric view of the flap fitting of the 1 to 4 with closed housing 10 , ie with attached second side plate 11 played. The 5 shows the flap fitting in a closed state of a not visible here mounted flap and the 6 a partially opened state, wherein the opening angle is about 10 degrees.

The housing 10 is in the range of the frame 12 through the previously mentioned rivets 13 locked. It is understood that instead of riveting 13 other fasteners for closing the housing 10 can be used, for example screws. Alternatively, a closure of the housing also by an adhesive connection between the side plates 11 and the frame 12 respectively. The housing 10 can of course be made in other ways, for example by a deep-drawing process. Essential for the housing 10 is that the forces of the flap fitting 1 can be included. The example produced by deep drawing housing 10 would also sidewalls 11 have, which are aligned parallel to each other.

especially the 5 shows that in the closed position of the flap fitting 1 the entire leverage 20 including the adjustment 30 between the side plates 11 retracts. Only the mounting plate 31 which is mounted on the flap and in the sense of the flap and not the adjustment 30 can be assigned to, before and not between the side plates 11 be positioned.

In 7 is a side wall 2 reproduced a furniture body, not shown, in which an application according flap fitting 1 , for example, as in the 1 to 4 shown is integrated. A furniture body usually has at least two such side walls 2 on, in both a corresponding according to the application flap fitting 1 is integrated. The two - or possibly further flap fittings 1 , which are integrated into partitions of the furniture body - carry a flap closing the furniture body forward.

In a front end 3 the side wall 2 is an opening 4 formed by the lever mechanism 20 the flap fitting 1 extending. The flap fitting 1 is either through the opening 4 in a behind this pocket formed in the side wall 2 used or is already in the production of the sidewall 2 integrated into this or through a bag from a side surface 5 is inserted from and an opening 4 at the front 3 has, inserted laterally. In all cases, the flap fitting 1 in the sidewall 2 integrated, wherein at least in the first two cases, the flap fitting on its sides of side surfaces 5 the side wall 2 covered and therefore neither from the outside, nor from the inside of the furniture body is visible. It is essential here that the flap fitting 1 and the side wall 2 form a unit and that the side wall 2 with inserted flap fitting has no or almost no thickness difference.

To get in the sidewall 2 of the furniture body is the thickness of the flap fitting 1 ie the outer distance of the side plates 11 , severely limited by specifications regarding the wall thickness of the furniture body. For conventional side walls of furniture carcasses with a thickness of 16 millimeters (mm) is the thickness of the flap fitting 1 necessarily below 16 mm, and is preferably less than or equal to 14 mm. Accordingly, the lever mechanism 20 including the adjustment 30 designed so that it is between the two side plates 11 , which have this distance, can be retracted.

The adjusting device shown 30 allows a lateral adjustment (side and height adjustment independently of each other) as well as an inclination adjustment of an attached flap. In addition, the flap with an attached part of the flap fitting, such as the mounting plate 31 , be easily separated from the remaining part of the flap fitting, which is the installation of the flap on the flap fitting 1 and the furniture body simplified. Part of the mounting plate 31 can still be in the area of the side wall 2 located, for example, between up or Umleimern, next to the opening 4 on the front page 3 are applied. Any remaining construction height of the mounting plate 31 is smaller than one or a few millimeters and is thus in the range of gaps between the front side 3 and the flap when closed.

According to the application is at the flap fitting 1 a damping unit 50 provided with a damper 51 both the closing, as well as the opening movement when approaching the respective end position attenuates. The operation of the damping unit will be described below with reference to the 1 to 4 explained.

As a damper 51 is in this case a linear damper with cylinder 511 and piston rod 512 intended. The damper 51 works as a pressure damper, which causes a movement of the piston rod 512 in the cylinder 511 dampens, whereas pulling out the piston rod 512 from the damper 511 without damping takes place. The basic idea of the attenuation unit described in more detail below 50 that with only one damper 51 However, both the opening, as well as the closing movement to damp on movement to the end position, but in principle also with a damper can be implemented, in which a pulling out of the piston rod is damped from the cylinder, whereas the immersion of the piston rod takes place in the cylinder unattenuated. The use of a rotary damper is possible.

The damper 51 is on one side, in the present case with the cylinder 511 , swiveling on the housing 10 assembled. With a second point, in this case with the piston rod 512 , is the damper 51 with a lever chain 52 connected to one of the levers of the lever mechanism 20 , in this case the support lever 25 , is coupled.

The lever chain 52 includes in the illustrated embodiment four levers, specifically an operating lever 521 , an angle lever 522 , a transmission lever 523 and a bellcrank 524 , Of these, the angle lever 522 and the bellcrank 524 designed as two-sided lever, which rotates in a central area on the housing 10 are fixed.

The lever 524 is with a lever arm on the damper 51 attached and with a second lever arm via the transmission lever 523 with one arm of the angle lever 522 connected. A second arm of the angle lever 522 is over the operating lever 521 with the support lever 25 coupled. The support lever 25 is designed as a two-sided lever, with a support arm 251 as a lever arm within the lever mechanism 20 serves and an actuating arm 252 the Coupling to the lever chain 52 , As a two-sided lever is understood here that the point of application of the actuating lever 251 both between the joint axes of the support lever 25 or as here in the embodiment on one side of the support lever 25 can lie.

The peculiarity of the lever chain 52 lies in a transfer of the pivoting movement of the support lever 25 on the damper 51 such that in the case of rectified (unidirectional) pivoting movement of the support lever 25 (ie with a pivoting movement in one direction) a dead center with reversal of motion for the piston rod 512 of the damper 51 he follows.

The named dead center of the lever chain 52 is reached when the connecting joint of the angle lever 522 with the transmission lever 523 in a straight line lies with the connecting joint of the transmission lever 523 with the lever 524 and the bearing joint of the angle lever 522 , This dead center is in a middle open position of the flap fitting 1 achieved, between the illustrated open positions in the 2 and 3 lies.

Starting from this dead center position closing the flap leads to a pivoting of the angle lever 522 clockwise to that in the 2 and finally 1 shown state. When pivoting, the lever is 524 at first lightly (cf. 2 ), then increasingly turned counterclockwise, whereupon the piston rod 512 in the cylinder 511 retracts and dampens the approach of the flap to the furniture body.

In contrast, starting from the dead center position of the lever chain 52 the one with the flap fitting 1 opened flap so pivots the angle lever 522 counterclockwise, as is the 3 and 4 demonstrate. Again, the lever is 524 moved counterclockwise, initially little and reinforced when approaching the end position. So again is the piston rod 512 in the cylinder 511 retracted and thus damped the flap in their movement when approaching the open position.

Both when closing the flap starting from the dead center position of the lever chain 52 , as well as when opening the flap is the transmission of the movement of the support lever 25 on the movement of the reversing lever 524 or the piston rod 512 non-linear: A pivoting of the support lever 25 by a certain pivot angle leads in the area of the dead center of the lever chain 52 first to a small movement of the piston rod 512 , Wherein pivoting about the same angle when reaching one or the other end position to a greater movement of the piston rod 512 and thus a damping is achieved, which effectively only starts when approaching the respective end position. The movement in a central opening area effectively remains undamped, even if there is minimal movement of the piston rod 512 takes place in each opening angle range.

The two-sided levers of the lever chain 52 So the angle lever 522 and in particular the bellcrank 524 also offer the possibility of the tilt angle of the support bracket 25 to the maximum deflection of the piston rod 512 out of the cylinder 511 adapt, so that as possible the entire travel of the piston rod 512 can be used.

The lever mechanism 20 is here in this embodiment of 1 to 4 executed as Siebengelenk. The execution of the lever mechanism 20 Of course, depends on the achievable flap movement, so that different flap movements can be achieved. Therefore, multi-arm or one-armed lever mechanisms can be used. As a multi-arm lever mechanism, for example, a four-bar arrangement is possible. The lever mechanism 20 may also include additional lever, which may be necessary, for example, in a so-called folding flap fitting to control the movement of the further flap panel.

LIST OF REFERENCE NUMBERS

1

flap bracket

2

Side wall

3

front

4

opening

5

side surface

10

casing

11

side plate

12

frame

13

rivet

20

leverage

21

Door bearing lever

22

transmission lever

221

control section

23

Umlenkhebel

24

control lever

25

support lever

251

support arm

252

actuating arm

30

adjustment

31

mounting plate

40

spring unit

41

spring assembly

411

compression spring

42

Spindles

43

intermediate lever

431

pressure roller

44

axis

50

damping unit

51

damper

511

cylinder

512

piston rod

52

lever chain

521

actuating lever

522

bell crank

523

transmission lever

524

Umlenkhebel

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• CN 204826984 U [0004]

Claims (13)

A flap fitting (1) for a piece of furniture, comprising a lever mechanism (20) with a plurality of levers for guiding a flap of the furniture, and a damping unit (50) with a damper (51) for damping the flap when approaching an end position, the damper (51 ) is coupled via a lever chain (52) with one of the levers of the lever mechanism (20), characterized in that the lever chain (52) of the damping unit (50) has a dead center, whereby a unidirectional movement of the one lever of the lever mechanism (20) in a bidirectional movement is implemented on the damper (51). Flap fitting (1) to Claim 1 in which the lever chain (20) has at least two two-sided levers, which are connected to one another by means of a transmission lever (523), the dead point is given by connecting joints of the transmission lever (523) in a straight line with a rotation axis one of the two-sided lever stands. Flap fitting (1) to Claim 2 in which one of the two-sided levers is an angle lever (522) whose other lever arm is connected to the lever of the lever chain (20). Flap fitting (1) to Claim 3 in that the lever of the lever chain (20) via an actuating lever (521) with the angle lever (522) is connected. Flap fitting (1) according to one of Claims 1 to 4 in which the damper (51) is a linear damper with a cylinder (511) and a piston rod (512). Flap fitting (1) to Claim 5 in which the damper (51) is pivotally attached to a housing (10) of the flap fitting (1) with the cylinder (511) or the piston rod (512). Flap fitting (1) according to one of Claims 1 to 4 in which the damper (51) is a rotary damper. Flap fitting to one of the Claims 1 to 7 in which the lever mechanism (20) forms a sieve joint. Flap fitting (1) to Claim 8 in that the lever mechanism (20) has a support lever (25) pivotally mounted on a housing (10) as the one lever to which the lever chain (52) is connected. Flap fitting (1) to Claim 9 in that the support lever (25) is a two-sided lever and has a support arm (251) and an actuation arm (252), the support arm (251) being connected to further levers of the lever mechanism (20) and the actuation arm (252) being connected to the Lever chain (52) is connected. Flap fitting to one of the Claims 1 to 10 in which the side plates (11) of a housing (10) have an internal spacing which is less than 16 mm and preferably less than 14 mm. Sidewall (2) for a furniture body into which a flap fitting (1) according to one of Claims 1 to 11 used or integrated. Furniture with a furniture body and a guided flap, characterized in that the furniture body at least one side wall (2) according to Claim 12 having.

Images