EP2142735B1 - Drive system for a fitting - Google Patents

Description

The present invention relates to a cabinet furniture according to the preamble of claim 1.

There are fittings for furniture, which are movable by an electric drive. The drive is usually tailored individually to the respective fitting part and designed for a specific purpose. This increases the manufacturing costs, since usually only a limited number of a particular driven fitting can be sold. Especially for the field of flap fittings, there is the problem that a drive is desirable because the flap fittings are usually arranged high-hanging in cabinet furniture and the opening and closing of the flap fittings is felt to be cumbersome.

The GB 1 398 732 discloses a drive device for drawers or flaps, in which an electric motor drives a spindle nut movable along a spindle. The spindle nut moves a slider, which is coupled with a lever or driver to drive the fitting.

The WO 2005/021914 shows a door opener in which a motor is driven by a spindle to move a pivotable lever. The lever has at the end a rotatable roller, which is supported on a plate on a door, so that the door can be opened.

The EP 361,020 discloses a holding mechanism for a tailgate of a vehicle, in which via a double-acting cylinder and a drive mechanism, the tailgate can be fixed in a desired position.

It is therefore an object of the present invention to provide a cabinet furniture with a furniture body, a flap fitting and an improved drive means for the flap fitting.

This object is achieved with a cabinet furniture with the features of claim 1.

According to the invention, the drive device can be mounted on opposite sides of the furniture body for driving the flap fitting. Thereby, the drive device can be mounted universally for a right or left side of the furniture body, which reduces the storage. Due to the universal possibility of connecting the coupling element, the drive device can also be used for a large number of different fittings, so that even fittings installed in furniture can be retrofitted with the drive device.

According to the invention, the coupling element is designed as a lever, which passes through a central slot in the housing. As a result, the components of the drive device can be arranged in the housing largely protected against contamination and other environmental influences.

For mounting the drive device, the coupling element can be rotatably mounted on a driven pivot lever, so that a certain tolerance compensation during assembly of the housing of the drive device can be made.

To specify the swivel range of the fitting parts, limit switches can be provided by means of which the electric motor can be switched off when a maximum opening position or a closing position is reached. The limit switches are preferably actuated via at least one driver mounted on a pivoting lever. In this case, the pivoting range of the pivot lever on the drivers and / or the limit switches can be adjusted so that indirectly the pivoting range of the fitting parts is changed via the setting. This allows a corresponding adaptation to the intended use of the drive device.

According to a further embodiment of the invention, the electric motor is coupled to a controller which is connected to a signal line and / or a remote control with a switching device. Thereby, the fitting part can be opened and closed via the controller as needed, wherein it is not necessary that the switching device is disposed immediately adjacent to the furniture body, but also a remote or remote control over a certain distance is possible.

For an effective drive, the pivot lever on a toothing, which is in engagement with a gear of the transmission. If the transmission has a corresponding ratio, the electric motor can be made relatively small.

The drive device is connected to the coupling element with the flap fitting, wherein this is used to open a pivotable flap. Depending on the size of the flap can be mounted on the flap fitting both on the right and on the left side a corresponding drive means. For smaller weight forces, it may be sufficient if only one drive device is mounted on the flap fitting.

Figuren 1 bis 3

Seitenansichten einer an einem Klappenbeschlag montierten Antriebseinrichtung in unterschiedlichen Öffnungspositionen;

Figur 4

eine perspektivische Ansicht des Schwenkbeschlages mit der Antriebseinrichtung der Figur 1;

Figuren 5 bis 7

mehrere Ansichten der Antriebseinrichtung und des Klappenbeschlages mit geschlossenem Gehäuse;

Figur 8

eine Vorderansicht der Antriebseinrichtung;

Figur 9

eine Draufsicht der Antriebseinrichtung mit dem Klappenbeschlag, und

Figur 10

eine perspektivisch Rückansicht des Klappenbeschlages mit der Antriebseinrichtung.

The invention will be explained in more detail below with reference to an embodiment with reference to the accompanying drawings. Show it:

FIGS. 1 to 3

Side views of a mounted on a flap fitting drive device in different opening positions;

FIG. 4

a perspective view of the pivot fitting with the drive device of FIG. 1 ;

FIGS. 5 to 7

several views of the drive device and the flap fitting with closed housing;

FIG. 8

a front view of the drive device;

FIG. 9

a plan view of the drive means with the flap fitting, and

FIG. 10

a perspective rear view of the flap fitting with the drive device.

In FIG. 1 a drive device for a flap fitting 1 is shown, which is mounted on a holding plate 2 on a furniture body of a cupboard furniture, can be fastened. The flap fitting 1 comprises a pivoting part 4 on which a plate 3 is provided for connection to a flap. The pivoting part 4 is formed at an angle and has at a portion 5 perpendicular to the plane the plate 3 has a hinge axis 6, on which a guide lever 7 is mounted. Spaced from the axis 6, a further axis 8 is formed on the portion 5, on which a second guide lever 9 is rotatably mounted.

The guide lever 9 is connected on the end facing away from the pivot part 4 via an axis 10 with a first lever 11, which is also coupled to the guide lever 7 on an axis 15 articulated. Spaced from the mounted on the support plate 2 on an axis 17 first lever 11, a second lever 12 is provided, which is hingedly connected at one side via an axis 13 with the guide lever 7 and at the other end via an axis 14 with the support plate 2 ,

As in the Figures 2 and 3 can be seen, the pivot member 4 can pivot relative to the support plate 2. In the flap fitting 1 shown is a fitting with seven hinge axes 6, 8, 10, 13, 14, 15 and 17. The arrangement of these axes and the geometry of the lever 7, 9, 11 and 12 can be varied depending on the application ,

In order to move the pivot member 4 more easily in the open position, a spring 25 is provided, which is mounted at one end to an axle 24 which forms a hinge point for a lever 21 and a lever 22. The lever 21 is pivotally mounted on the hinge axis 13 and the lever 22 is fixed on the side facing away from the axis 24 on an axis 23 which is provided on the holding plate 2. The spring 25 is fixed on the side facing away from the axis 24 on a pin 26 which is adjustably held on a screw 27 in order to adjust the spring tension can.

In the closed position of the flap 3, the spring 25 presses the pivoting part 4 in the closed position, since to open the pivoting part 4 via the mechanism, the levers 21 and 22 are first moved toward each other with the axes 13 and 23, so that the length of the Spring 25 is slightly enlarged at the beginning. Only after an angle of for example 15 ° to 25 °, the length of the spring is reduced and the spring 25 now presses the pivot member 4 in an open position. After exceeding a dead center thus the opening movement is supported by the spring 25.

In order to be able to open and close the flap fitting not only manually but also automatically, a drive device is provided. This comprises a coupling element 30 in the form of a lever, which is mounted on one side on the hinge axis 13 and on the opposite side on an axis 35 on a pivot lever 33. The pivot lever 33 is rotatably mounted about a rotation axis 34. The pivoting lever 33 has a tooth portion 31 which engages with a gear of a gear 32 formed of a plurality of gears. A gear 36 of the transmission 32 is driven by an output shaft 37 of an electric motor 38. By the gear 32, a translation is provided, so that the electric motor 38 may be made relatively small.

On the pivot lever 33, two spaced apart drivers 42 and 44 are provided, via which in each case a mounted on a housing limit switch 40 and 41 is switchable, so that via a control of the electric motor 38 can be switched off.

In order to open the pivoting part 4, the electric motor 38 drives the pivoting lever 33 counterclockwise via the gear 32 until initially a half-open position (FIG. FIG. 2 ) and then a fully open position ( FIG. 3 ) is reached. In the maximum open position, the driver 42 presses against a contact arm 43 of the limit switch 40, which switches off the electric motor 38. If the pivoting part 4 is moved back into the closed position, the driver 44 presses against a contact arm 45 of the second limit switch 41, so that the electric motor 38 is switched off in the end position. The drivers 42 and 44 and / or the limit switches 40 and 41 can be adjusted to adjust the switching points. For this purpose, elongated holes 46 are formed on a housing 50 or a mounting plate on which screws 47 are inserted for fixing the limit switches 40 and 41. By moving the position of the screws 47, the limit switches 40 and 41 can be set in the desired position.

The drive device is accommodated in the housing 50, which consists of two housing halves 51 and 52, wherein the housing 50 may also have more than two parts. In the housing 50, the electric motor 38 and the transmission 32 and the pivot lever 33 stored. From a central slot protrudes designed as a lever coupling element 30 which is connected to an axis 13 with the guide lever 7 of the flap fitting.

As in FIG. 8 can be seen, the coupling element 30 is in the housing 50, wherein the housing halves 51 and 52 form a slot for the passage of the coupling element 30. The distance from the coupling element 30 to the outside is the dimension A on both sides. This makes it possible to attach the drive device both on a right side of the furniture body and on a left side of the furniture body. It is only necessary to provide a type of drive device for both sides of the flap fitting, wherein the drive device can also be used universally for other fittings. For this purpose, an adjustment of the pivoting range of the pivot lever 33 may be made, for example, in which the drivers 42 and 44 are positioned differently. Alternatively, it is possible to vary the position of the limit switches 40 and 41 as well.

Claims (10)

1. A piece of cabinet furniture, comprising a furniture body, a flap hinge and a drive device for the flap hinge, a housing (50) which can be fixed to the furniture body and in which an electric motor (38) is provided, which drives a coupling element (30) connected to a fitting part (7) via a gearing (32), wherein the coupling element (30) is centrally arranged in the housing (50) in a direction perpendicular to the plane of motion of the fitting part (7), and the drive device can be mounted on opposite sides of the furniture body for driving the flap hinge (1), wherein the coupling element (30) is arranged as a lever which reaches through a central slot in the housing (50).
2. A piece of cabinet furniture according to claim 1, characterized in that the coupling element (30) is rotatably held on a driven swiveling lever (33).
3. A piece of cabinet furniture according to claim 1 or 2, characterized in that limit switches (40, 41) are provided, by means of which the electric motor (38) can be switched off upon reaching a maximum opening or closing position.
4. A piece of cabinet furniture according to claim 3, characterized in that the limit switches (40, 41) can be actuated via at least one driver (42, 44) mounted on a swiveling lever (33).
5. A piece of cabinet furniture according to claim 4, characterized in that the swiveling range of the swiveling lever (33) can be set through the drivers (42, 44) and/or the limit switches (40, 41).
6. A piece of cabinet furniture according to one of the preceding claims, characterized in that the electric motor (38) is coupled with a controller which is connected to a signal line and/or a remote control with a switching device.
7. A piece of cabinet furniture according to claim 2, characterized in that, characterized in that the swiveling lever (33) comprises a toothing (31) which meshes with a gearwheel of the gearing (32).
8. A piece of cabinet furniture according to claim 4, characterized in that the drive device is connected via the coupling element (30) to a flap hinge with a swiveling part (4) of the flap hinge which is held on two guide levers (7, 9), and a holding plate (2) which can be connected to the furniture body, with two levers (11, 12) being held on the holding plate (2), of which one first lever (11) is connected in an articulated manner to both guide levers (7, 9) and a second lever (12) is connected in an articulated manner to a guide lever (7).
9. A piece of cabinet furniture according to claim 8, characterized in that the coupling element (30) on a hinge axis (13) is connected to the guide lever (7) and the lever (12).
10. A piece of cabinet furniture according to one of the claims 7 to 9, characterized in that a spring (25) is provided, by means of which the swiveling part (4) is pretensioned in a closed position to the closed position and, after the swiveling of the swiveling part (4) beyond the dead center, to the open position.

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