DE202011107857U1 - Device for moving a folding flap - Google Patents

Abstract

Device (1) for moving a folding flap (91) movably received on a furniture carcass (95) comprising at least two articulated flap elements (92, 93) with a force unit (21) connected to a first flap element (92) via a mounted state. arranged actuating arm (22) the opening of the folding flap (91) by force at least supported, characterized in that one for an articulated mounting on the second flap element (93) second actuating arm (32) of a second power unit (31, 32) is provided, via which a force on the folding flap (91) can be applied.

Description

The invention relates to a device for moving a movably received on a furniture body folding flap according to the preamble of claim 1 and a piece of furniture.

Folding flaps offer furniture the advantage that they require less free movement space, as two or more parts of the flap can be folded, especially when opening. Therefore, devices for moving a folding flap in various designs are known from furniture. One or more actuating arms can engage a first flap element of a folding flap in order to guide its movements during opening and closing or to secure its position in a closed or open position. It is known that further flap elements, with the first flap element z. B. hinges are connected, easily taken from the first flap element. The other devices are also known in which a first and a next flap element are interconnected by a coupling gear. In this case, the coupling gear is kinematically coupled to actuating arms which act on the first flap element coupled so that movements of the next flap element are controlled by the actuating arms on the first flap element.

The object of the present invention is to provide a device for moving folding flaps on furniture, which is comparatively easier to adapt to a folding flap and at the same time increases their operability.

This object is achieved by a device having the features of claim 1.

Preferred and advantageous embodiments of the invention are set forth in the subclaims.

The invention is based on a device for moving a folding flap which is movably received on a furniture body of a piece of furniture. The folding flap comprises at least two articulated flap elements. The device has a force unit which at least supports the opening of the folding flap by the action of force via an actuating arm arranged in the assembled state on a first flap element. The essence of the invention is that a second actuating arm of a second power unit is provided for an articulated mounting on the second flap element, via which a force can be applied to the folding flap.

Thus, according to the invention, a second power unit with its own actuating arm attached to the furniture body, wherein the second actuating arm with a joint, for. B. a hinge, is movably connected to the second flap element. Because driving forces can be applied to different flap elements of the folding flap with the first and the second force unit, the operability of the folding flap can be advantageously improved with the device according to the invention.

With the device according to the invention can advantageously be provided a movement guide for the second flap element, which can be mounted and adjusted independently of an attachment of the first power unit and the first actuator arm. The device is therefore comparatively easy to use for different forms of folding flaps, in particular with different sizes of flap elements.

Another advantage of the invention is that with the second power unit, which acts on the second flap element with the second actuating arm, the first power unit and its actuating arm can be relieved. Likewise, it can be joint and attachment sections on the folding flap and z. B. relieve the furniture body.

With the second power unit on the second actuator arm a higher load capacity can be achieved, so that comparatively larger and heavier folding flaps can be used. By a higher load capacity fittings can be saved if necessary. In contrast, it is possible in connection with previously used folding flaps to use for a device according to the invention a comparatively smaller and lighter-built first power unit.

Preferably, the second force unit provides forces for opening the folding flap, which in particular folding flaps, which must be at least partially raised to open, are comparatively easier to use. In this case, a position of the second flap element can be specified comparatively accurately in an open position of the folding flap. The force units can also provide a force for closing the folding flap, in particular in a position shortly before the closed end position. As a result, a comparatively better closing pattern on a piece of furniture with folding flap can be achieved.

A force unit, in particular the second power unit, preferably comprises a force accumulator. The energy storage can, for. B. a helical metal spring or z. B. be a gas spring. As a result, the device is advantageously independent of additional energy supply.

In order to use the device for different types of folding flaps, the energy storage is preferably anchored to an adjustable rest camp. For a simple embodiment, the rest bearing is preferably provided to maintain a predetermined position when the energy accumulator is loaded and unloaded with an actuator. The rest bearing thus forms an abutment for the actuator, which can act indirectly on the energy storage on the rest camp.

One of the force units of the device, preferably the first, a drive unit, for. B. an electric drive unit, have. The electric drive unit may, for. B. include an electric motor. Such an embodiment of the invention also makes it possible to provide a remote-controlled actuation of the folding flap.

For a smooth operation of the folding flap, a preferred embodiment of the invention is that an energy storage is arranged on one or both of the actuating arms. In particular, if z. B. the first power unit z. B. comprises electric drive unit is an energy storage, for. B. a helical metal spring, preferably provided on the second actuating arm. This is a comparatively simple solution for moving the second flap element synchronously with the first flap element.

In order to avoid relatively large actuation forces and relatively fast movements, a force unit, in particular the second force unit, may also comprise a damping element.

The closable with the folding flap storage space of a piece of furniture can be made relatively easily accessible when the energy storage is located within the actuator arm. In this case, the energy storage advantageous either by motor drive forces of each other, z. B. the first, power unit or z. B. be charged by actuation forces of a user.

The energy accumulator can interact eccentrically with a contour via a coupling element. The coupling element can, for. B. be guided in a guide slot, which moves the coupling element during movements of the folding flap, in particular one of the flap elements in a predetermined manner, wherein it is opposite to a position of a rest bearing of a force storage, z. B. a spring is moved. If the z. B. second actuator arm on actuation of the folding flap essentially performs pivotal movements, an advantageously simple embodiment is that the contour is at least approximately circular section, in particular semicircular, wherein the circular center is arranged eccentrically to the pivot axis of the actuating arm.

The coupling element can be provided with a cam, which guides the actuating arm along the contour during movements. In order to minimize frictional forces and wear, the coupling element is preferably equipped with a roll for trailing the contour.

If z. B. the energy storage or z. B. the coupling element are stored or guided in the actuator arm, the actuator arm in the range z. B. a pivot bearing fork-shaped. This allows the contour advantageous between z. B. be arranged two fork portions of the actuating arm, so that opposing forces, which causes the coupling element by action on the contour, symmetrical and thus wear-reducing on a pivot bearing of the actuating arm are transferable.

In order to increase forces with which the actuating arm acts on the second flap element, the actuating arm can be bent in an area in which the coupling element interacts with the contour. As a result, a lever length between the pivot axis of the actuating arm near the furniture body and the points of support of the coupling element on the contour can be predetermined, with which it is possible to improve the power transmission from the energy accumulator to the folding flap.

Advantageously, the energy accumulator can also be charged by the energy accumulator interacting via a coupling element with a thrust lever which is provided for the articulated attachment to the furniture body. When changing the position of the actuator arm, the push lever can move the coupling element. The pivot bearing of the thrust lever can z. B. be mounted below the pivot bearing of the actuating lever on the furniture body, wherein the thrust lever extends from there to or in the control lever. Likewise, a pivot bearing of the thrust lever can be arranged above a pivot bearing of the actuating arm, wherein the thrust lever can act on the actuating arm, in particular on the coupling element such that the thrust lever receives predominantly tensile forces from the actuating arm. Embodiments of the invention with the thrust lever offer the advantage that the z. B. second actuating arm not only on the axis of rotation but also on the pivot bearing of the thrust lever has a support point. As a result, comparatively larger forces can be transmitted to the second flap element.

Preferably, the coupling element comprises a sliding element arranged on the actuating arm in order to prevent frictional forces and wear z. B. by friction to keep low. For this purpose, the coupling element may also have roles z. B. roll on an inner side of the actuator arm.

The thrust lever is preferably articulated to be connected to the sliding member, so that a comparatively accurate power transmission between the thrust lever and power storage is specified at different positions of the actuating arm. When closing the folding flap, the sliding element is preferably pushed back in the guide state in the assembled state via the thrust lever while a spring tensioned.

Preferably, a power unit is designed for attachment to a side part of the furniture body. In particular, both the first and the second power unit can be designed for mounting on a side part of the furniture body. This advantageously favors a space-saving design in which z. B. individual device parts may be formed as a flat plate-shaped components.

With reference to drawings, three embodiments of the invention are presented below. Show it:

1 a schematic sectional view of a detail of a piece of furniture according to the invention in a perspective view,

2 schematic side view in partial section of a second actuator arm of a device according to the invention,

3 schematic perspective view in exploded view of the actuator,

4 schematically lateral sectional view of an actuating arm of a device according to the invention,

5 schematic lateral sectional view of an actuating arm of a device according to the invention.

The 1 . 2 and 3 show a first embodiment of a device according to the invention 1 , in the 1 on a piece of furniture 9 is appropriate. Here is a folding flap 91 movable on the furniture body 95 of the furniture 9 attached. The folding flap 91 consists of an upper flap element 92 and a lower flap element 93 , The flap elements 92 and 93 are about two hinges 94 of which only one in the 1 is shown pivotally connected to each other.

The device according to the invention 1 includes a first actuator 2 and a second actuator 3 , where both actuators 2 and 3 on a side wall 97 of the furniture body 95 below a furniture cover 96 are attached. Preferably, mirror-symmetric actuators (not shown) are provided for attachment to an opposite side wall (not shown) to provide torsional deformations on the folding door by a uniform distribution of force 9 and on the furniture body 95 to avoid.

The upper flap element 92 is with an actuator arm 22 and a power unit 21 the first actuator 2 swiveling on the furniture body 95 appropriate. The power unit 21 may be an energy store (not shown), z. As a spring include. Preferably, the power unit comprises a drive unit (not shown), e.g. B. an electric motor include, causing the flap z. B. can be operated automatically from a distance.

In the embodiment shown is the actuator 2 executed such that the upper flap element 92 no additional swivel hinges for attachment to the furniture body 95 needed. The actuator 2 limits movements of the upper flap preferably to a degree of freedom, z. B. the pivoting about a pivot axis of the actuator 2 , one. This simplifies the kinematic structure of the actuator 2 ,

The lower flap element 93 is by means of the second actuator 3 with the furniture body 95 connected. At the lower flap element 93 is a valve warehouse 33 attached to which an actuating arm 32 the actuator 3 is pivotally mounted. An attachment element 31 attached to the side wall 97 screwed on, forms a second pivot bearing for the actuator arm 32 ,

By the suspension on the hinges 94 is the lower flap element 93 after opening initially in two degrees of freedom movable, a pivoting degree of freedom about the pivot axis of the actuator 2 and another pivoting degree of freedom about the pivot axis of the hinges 94 , With the second adjusting device 3 a movement coupling between the two degrees of freedom can be achieved, so that the lower flap element 93 can perform easily predictable movements. As a result, the risk of injury that may arise from a folding flap when opening or in an open position, significantly reduced.

To forces in particular for opening and possibly also for closing the folding flap 91 on the lower flap element 93 to apply is in the actuator 3 a power unit integrated.

Upon actuation of the folding flap 91 becomes an upper portion of the lower flap member 93 over the upper flap element 92 and the hinge 94 indirectly from the actuator 2 guided while movements of a lower portion of the flap element 93 through the actuator 3 are guided. This offers the advantage that the course of a movement path of the lower flap element 93 by Positions of the flap bearing 33 at the lower flap element 93 and the attachment element 31 on the furniture body 95 can be influenced.

The 2 and 3 show details of the inner structure of the actuator 3 , The actuator arm 32 is made of a flat hollow profile tube 32a with approximately oval cross section, a head piece 32b and a foot piece 32c composed. The head piece 32b is on the hollow profile tube 32a attached and with the help of a fixing pin 41 that the holes 32e and 32f penetrates, fixes.

The head piece 32b is in two substantially straight sections 32k and 32m through a kink 32n divided. From the area of the bend 32n to the area of a hole 32d the head piece is fork-shaped. As a result, a portion of the attachment element 31 with a hole 38 in the head piece 32b extend. By connecting holes 32d the Stellarms 32 with the hole 38 the attachment element 31 by means of a pivot pin 40 is formed a symmetrically supporting pivot bearing.

In the hollow profile tube 32a is a pen 42 attached, z. B. riveted, a rest camp for springs 43 forms. Notwithstanding the embodiment shown here, a rest bearing for the springs can also be designed as an adjustable counter bearing (not shown). The feathers 43 are from an opposite side by a slider 34 put under pressure. The slider 34 has a role 35 on, with which the slider 34 on a control contour 36 the attachment element 31 supported.

The head piece 32b and the control contour 36 are matched to one another such that a contact point of the role 35 at the control contour 36 displaces such that the actuating arm in a deeper pivoting range a closing and in a higher pivoting range an opening force on the lower flap element 93 can exercise.

For transmitting the forces of the second actuator 3 on the lower flap element 93 are the foot piece 32c as well as the flap bearing 33 intended. In the field of drilling 33a is the flap bearing 33 fork-shaped. This can be a bore 32 of the foot piece 32c with a pivot pin, not shown on the holes 33a the flap bearing are stored symmetrically. This allows a comparatively lower wear on the pivot bearing points and better management of opening and closing movements of the lower flap element can be achieved. By a comparatively lower bearing friction is with the actuating forces generating parts 31 . 32b . 34 . 35 . 40 . 42 . 43 an improved mode of operation achievable.

At the control contour 36 can have one or more rest positions 36a for predetermined position of the actuator arm 32 be formed, with which the second actuator 3 the lower flap element 93 can safely hold predetermined positions.

A disadvantage of in the 2 and 3 shown embodiment of the invention is that on a pivot bearing 32p the role 35 comparatively large forces perpendicular to a longitudinal axis of the hollow profile tube 32a may occur, the wear z. B. on the slider 34 increase.

The 4 shows a second actuator 3 a second embodiment of the invention, which also actuating forces by means of a control contour 36 a sliding element 41 , a role 35 and a spring 43 in a hollow profile tube 32a housed is generated. At the hollow profile tube 32a is a pen 46 plugged in the one arm 32 a resting or counter bearing for a spring 43 forms. In the area of a connection of the hollow profile tube 32a with a head piece 32b is a first sliding element 45 movable in the hollow profile tube 32a arranged, with the spring 43 on the slider 45 Compressive forces in the direction of the head piece 32b exercises. The sliding element 41 is in an angled section of the headboard 32b , who is currently working on a swivel bearing of the actuator arm 32 around a pivot pin 40 an attachment element 31 is guided.

A coupling element 44 is with pivot 44a at one end with the slider 45 and at an opposite end with the further sliding element 41 pivotally connected. With the help of the coupling element 44 are movements of the sliding elements 41 and 45 over a range of a bend in the header 32b coupled together when changing the position of the actuator arm 32 the sliding element 41 through the control contour 36 against a force of the spring 43 in the head piece 32b is moved.

The second embodiment of the invention offers the advantage that stresses on a bearing of the role 35 on the sliding element 41 and in the Stellarm 32 are reducible. This also allows the wear on the slider 41 and at a sliding portion within the actuator arm 32 reduce advantageous.

In the 5 is a second actuator 3 of a third embodiment of the invention. In this case, restoring forces of a second actuator arm 32 with a pivotable support element 48 controlled.

The actuator arm 32 includes a hollow profile tube 32a , at the longitudinal end at one end a head piece 32b and at the opposite end a foot piece 32c are attached. The head piece 32b is on a pivot pin 40 that attaches to a mounting element 31 is fixed, pivotally mounted. The attachment element 31 is with two holes 37 provided with which it is attached to a furniture body z. B. can be screwed.

The foot piece is with a bore 32j for a z. B. pivotal connection with a flap bearing (in 5 not shown).

The attachment element 31 has another pivot pin 49 on, on which the support element is pivotally mounted. The support element 38 extends from the pivot pin 49 from through an opening in the hollow profile tube 32a into where it is with a slider 47 about a joint 47a is rotatably connected. The hollow profile tube 32a serves as a guide rail of the slider 47 , For changes in angular positions of the actuator arm 32 the position of the joint changes 47a to which the support element 38 with the hollow profile tube 32a movable over the slider 47 is coupled. In this case, the slider against a force of a spring 43 in the hollow profile tube 43 is installed, moved.

The spring can z. B. with a pen 46 passing through the hollow profile tube 32a is inserted, anchored in the hollow profile tube. The feather 43 may be a tension spring, causing the actuator arm 32 can support closing movements of a folding flap (not shown). When the spring 43 is a compression spring, the actuator arm can 32 support opening movements. Nevertheless, the actuator arm can 32 be held with a compression spring in a closed position when the pivot bearing pin 40 and 49 are positioned on the mounting element such that the support element 38 can overcome a bottom dead center with a pivoting movement down, from which the slider 47 through the support element 38 in the hollow profile tube 32a in the direction of the head piece 32b is withdrawn.

In an embodiment of the invention, not shown, a rest bearing of a force accumulator, which is accommodated in particular in an actuating arm, be designed as an adjustable counter-bearing. The adjustable counter bearing can, for. B. a sliding counter bearing element and a z. B. threaded rod, wherein the threaded rod, for example, in a thread z. B. is supported on the foot. By turning the threaded rod in the thread, z. B. with a screwdriver, the threaded rod and with it the counter-bearing element is displaced so that provided by the force storage forces on predetermined forces different folding flaps, z. B. different size and different material, is tuned. In addition, operating forces for opening and closing a folding flap can thus be adapted to the wishes of users accordingly.

LIST OF REFERENCE NUMBERS

1

contraption

2

actuator

3

actuator

9

Furniture

21

power unit

22

actuating arm

31

attaching member

32

actuating arm

32a

Hollow section tube

32b

headpiece

32c

footjoint

32d

drilling

32e

drilling

32f

drilling

32g

latching opening

32h

locking element

32j

drilling

32k

section

32m

section

32n

kink

32p

pivot bearing

33

flaps stock

33a

drilling

34

slide

35

role

36

control contour

36a

rest position

37

drilling

38

drilling

39

screw

40

Pivot bolt

41

fastening pin

42

pen

43

feather

44

coupling piece

44a

pivot

45

slide

46

pen

47

slide

47a

joint

48

support element

91

folding flap

92

flap element

93

flap element

94

hinge

95

furniture body

96

furniture ceiling

97

Side wall

Claims (10)

Contraption ( 1 ) for moving one on a furniture body ( 95 ) movably received folding flap ( 91 ) of at least two articulated flap elements ( 92 . 93 ) with a Force unit ( 21 ), which in the mounted state on a first flap element ( 92 ) arranged actuating arm ( 22 ) the opening of the folding flap ( 91 ) is at least supported by the action of force, characterized in that one for an articulated attachment to the second flap element ( 93 ) second actuator arm ( 32 ) a second power unit ( 31 . 32 ) is provided, via which a force on the folding flap ( 91 ) can be applied. Contraption ( 1 ) according to claim 1, characterized in that the second power unit ( 31 . 32 ) a force for opening the folding flap ( 91 ). Device according to one of the preceding claims, characterized in that a force unit ( 31 . 32 ) an energy store ( 43 ). Device according to one of the preceding claims, characterized in that a force accumulator ( 43 ) on the second actuating arm ( 32 ) is arranged. Device according to one of the preceding claims, characterized in that the energy store ( 43 ) via a coupling element ( 34 . 44 . 45 ) eccentric with a contour ( 36 ) cooperates. Device according to one of the preceding claims, characterized in that the energy store ( 43 ) via a coupling element with a push lever ( 48 ), which is used for articulated attachment to the furniture body ( 95 ) is provided. Device according to one of the preceding claims, characterized in that the coupling element a in the actuator arm ( 32 ) arranged sliding element ( 47 ). Device according to one of the preceding claims, characterized in that the thrust lever ( 48 ) hinged with the sliding element ( 47 ) connected is. Device according to one of the preceding claims, characterized in that a force unit ( 31 . 32 ) for attachment to a side part ( 97 ) of the furniture body ( 95 ) is designed. Furniture ( 9 ) with a device ( 1 ) according to any one of the preceding claims.

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