EP1755423B1 - Device for moving a moving furniture component - Google Patents

Abstract

The invention relates to a device for moving a moving furniture component, mounted in or on a piece of furniture, in particular, a drawer or door, comprising a closing device for retracting the moving furniture component into a closed end position in or on the piece of furniture, whereby the closing device comprises a driver, for driving the moving furniture component and an energy store, in particular, at least one spring, for tensioning the driver, whereby the device comprises an electric motor for powering the driver.

Description

The present invention relates to a device for moving a storable in or on a furniture body movable furniture part, in particular drawer or door, with a closing device for pulling the movable furniture part in a closed end position in or on the furniture body, wherein the locking device a driver to take away the movable Furniture part and a power storage, in particular at least one spring, for acting on the driver.

Devices with such closing devices have been known for some time. In this case, over the majority of the distance between the closed end position in or on the furniture body and the fully open end position freely movable furniture part is detected in the rear catchment area by the driver of the locking device and safely pulled into the closed end position.

Object of the present invention is to improve the ease of use generic devices.

This is inventively achieved in that the device comprises an electric motor for driving the driver.

This makes it possible to reduce or even eliminate the force applied in generic devices during the opening process of a movable furniture part by a user to overcome the closing device force.

Since the closing device for retracting the movable furniture part only has to be engaged with the movable furniture part via a partial section of the entire opening path upstream of the closed end position, it is preferably provided that the catch can be detachably coupled to the movable furniture part. For example, it can be provided that a Mitnehmezapfen mitbeweg with the movable furniture part is releasably latched into a notch arranged on the driver.

In an advantageous embodiment of the invention it is provided that the driver is arranged on a movable carriage. The carriage can thereby in a housing be arranged linearly movable. This stabilizes the movement of the carriage and thus the movement of the driver.

In this context it can be provided that the driver is rigidly connected to the carriage and preferably formed integrally with the carriage. Alternatively it can be provided that the driver is movable, preferably tiltable, connected to the carriage. For this purpose, for example, the driver may be mounted on a pin on the carriage. This allows the pivoting away of the driver in a parking position, from which it is movable by the movable furniture part when closing.

The force accumulator provided for pulling the movable furniture part into the closed end position can, for example, have a spring. For example, the springs may be anchored to an anchoring part and engage either on the carriage or directly on the driver.

The drawing of the movable furniture part can be done in a known manner by contacting a mitbewegbeweg mit this entrainment pin with the driver of the locking device in its parking position.

In an advantageous embodiment of the invention, it is provided that the device has a tappet which can be acted upon by the electric motor for acting on the driver or of the carriage. This allows the pinpoint application of the opening force on the carriage or on the driver.

In a further advantageous embodiment of the invention it is provided that the plunger with the driver or the carriage, preferably articulated, is connected. This allows the electric motor over the entire distance of movement of the driver or the carriage remain engaged with this. This allows the support of the retraction movement of the movable furniture part by the electric motor.

Alternatively it can be provided that the plunger loosely rests on the driver or on the slide. In this case, the plunger can be withdrawn after completion of the opening operation in its original position.

Unlike in generic devices in which the energy storage required for the actuation of the locking device are manually charged by the user, the energy storage device can be charged by the electric motor in the inventive device.

It is particularly preferably provided that the electric motor provided in the device according to the invention is not a general device for converting electrical into mechanical energy but an electric motor in the narrower sense, which comprises a stator, the stator preferably comprising an electromagnet. Preferably, the electric motor further comprises a rotatably arranged with respect to the stator rotor, which preferably comprises at least one permanent magnet.

Such electric motors are commercially available at low cost in a space-saving design.

In a further embodiment, it is provided that the electric motor is designed as a linear motor.

Such linear motors have the advantage that for the desired linear force exercise no gear for the implementation of the rotary motion motor necessary.

Particularly preferred is a linear motor is provided which comprises a stator, wherein preferably the stator comprises at least one electromagnet. Preferably, the stator comprises at least two separate coils, which are mounted on a bearing sleeve. Furthermore, it can be provided that the linear motor comprises a linearly displaceable with respect to the stator rotor (direct linear motor). This can comprise at least one permanent magnet.

The linear motor can either rest loosely on the movable furniture part or on a closing device for the movable furniture part or be firmly connected thereto. If the linear motor firmly connected to the movable furniture part, he can take over the functions of the locking device and this can be omitted.

In an advantageous embodiment of the invention, it is provided that the device can be acted upon by the linear motor ram for acting on the movable Furniture part has. Alternatively, of course, as already described, be provided that the plunger acts on the driver or the carriage of the locking device.

Particularly preferably, it is provided that the plunger is arranged on the rotor of the linear motor and is preferably formed integrally therewith. This allows a particularly compact design.

In a particularly preferred embodiment of the invention it is further provided that the device comprises a displacement measuring device, which is preferably integrated in the electric motor. The path measuring device can serve to determine the position or the distance covered by the movable furniture part, the driver of the closing device or the carriage of the locking device.

It is particularly preferably provided that the path measuring device comprises an inductive or capacitive transducer.

In particular, in the embodiment of the electric motor as a linear motor inductive or capacitive transducer have the advantage that the displacement measuring device can be realized without additional components and in a compact design.

For example, a capacitive displacement measuring device can be realized as follows:

The stator of the linear motor comprises two coils mounted separately on a bearing sleeve. The rotor of the linear motor, which comprises a permanent magnet, is displaceable in the coils and moved out of the first coil. This changes the capacity of the first coil, which allows the rotor position of the linear motor to be determined. To establish a reference value can be provided to electrically contact one of the two sleeves with a capacitor of known capacity. The electrical interconnection of the displacement measuring device is in an equivalent circuit as a series connection of the capacitances of the two coils with the capacitor, ie as a series connection of three capacitances, wherein the capacity of the first coil depends on how far the rotor of the linear motor has been moved out of it. This allows the determination of the position of the runner.

An inductive displacement measuring device can be realized, for example, as follows:

The stator of the linear motor comprises two coils mounted separately on a bearing sleeve. The rotor of the linear motor, which comprises a permanent magnet, is displaceable in the coils and moved out of the first coil. For path measurement, a sinusoidal measurement AC voltage is coupled to the motor voltage. The low-frequency drive current is therefore superimposed by a high-frequency measurement alternating voltage (for example, approximately 20 kHz). Due to the engine inertia, the measurement AC voltage, which can move, for example, in the order of 1 to 5 percent of the motor voltage, has no effect on the motor behavior of the motor. If the measuring alternating voltage is now picked up separately via both coils, then the measured voltage amplitude depends on the impedance of the respective coil, that is to say it depends on the position of the rotor. For separate tapping of the two coils, a center tap is additionally led out of the linear motor at the connection of the two coils. The measured AC voltages are electronically filtered, amplified and divided to eliminate DC field interference. The measurement signal obtained after the division of the two partial AC measurement voltages is proportional to the position of the rotor.

Another aspect of the invention relates to a pull-out for a storable in or on a furniture body movable furniture part, in particular drawer or door, with an attachable to the movable furniture part pull-out rail and attachable to the furniture carcass mounting rail, wherein the pull-out comprises a device according to the invention of the type described above.

To realize a full extension of the movable furniture part may further be provided that a middle rail is disposed between the pull-out and the support rail.

For example, both the electric motor and the closing device can be arranged on the mounting rail of the pull-out guide. Preferably, a driving pin is arranged on the pull-out rail. This can for example be acted upon by the electric motor. But it can also be provided that the driving pin with the driver of the locking device, preferably releasably, can be coupled.

Another aspect of the invention relates to a piece of furniture with at least one movable furniture part, in particular drawer or door, characterized by a Device according to the invention of the type described above, wherein the device is preferably arranged in a pull-out guide of the type described above.

Preferably, it is provided that the movable furniture part of the closing device at least one of the closed end position of the movable furniture part upstream part of the entire opening path is retractable.

A further aspect of the invention relates to a method for moving a movable furniture part mounted in or on a furniture carcass of a furniture according to the invention, wherein the movable furniture part is ejected by the electric motor from its closed end position in or on the furniture carcass.

Alternatively, it can be provided that the movable furniture part is moved back into its closed end position by the closing device or that the movable furniture part is moved back into its closed end position by the electric motor.

In any case, it can be provided that the closing movement of the movable furniture part or of the driver of the closing device is damped by the electric motor.

However, it can of course additionally or alternatively be provided by the electric motor separately present damping device for damping the closing movement.

The triggering of the electric motor can be done for example by manual operation of a switch. If a displacement measuring device is provided, it can also be used to trigger the electric motor. For example, the triggering can take place when the displacement measuring device determines that the driver has been moved only a predetermined or predetermined distance.

Fig. 1

die Explosionsdarstellung eines Ausführungsbeispiels einer an sich bekannten Schließvorrichtung,

Fig. 2a, 2b

ein erstes Ausführungsbeispiel der erfindungsgemäßen Vorrichtung in perspektivischer Gesamt- und Detailansicht,

Fig. 3a, 3b

das in den Fig. 2a, 2b dargestellte Ausführungsbeispiel mit herausbewegtem Mitnehmer,

Fig. 4a, 4b, 4c

die Draufsicht des in den Fig. 2 und 3 dargestellten Ausführungsbeispiels bei verschiedenen Stellungen des Mitnehmers,

Fig. 5

ein weiteres Ausführungsbeispiel einer an sich bekannten Schließvorrichtung,

Fig. 6a, 6b

ein weiteres Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung in perspektivischer Ansicht und Detailansicht,

Fig. 7a, 7b

das in den Fig. 6a, 6b dargestellte Ausführungsbeispiel mit herausbewegtem Mitnehmer,

Fig. 8a, 8b, 8c

dieses Ausführungsbeispiel in Draufsicht bei verschiedenen Stellungen des Mitnehmers,

Fig. 9a, 9b, 9c

ein weiteres Ausführungsbeispiel der erfindungsgemäßen Vorrichtung in perspektivischer Ansicht, Detailansicht und in Schnittdarstellung,

Fig. 10a, 10b, 10c

einen Linearmotor in Draufsicht, perspektivischer Ansicht und Schnittdarstellung,

Fig. 11a, 11b

ein Ausführungsbeispiel einer erfindungsgemäßen Ausziehführung in perspektivischer Ansicht und in Schnittdarstellung,

Fig. 12

ein weiteres Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung in perspektivischer Ansicht,

Fig. 13a, 13b, 13c

ein weiteres Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung in perspektivischer Ansicht und in Detailansichten und

Fig. 14a, 14b

ein Möbel mit einer erfindungsgemäßen Vorrichtung in perspektivischer Ansicht und Detailansicht.

Further advantages and details of the invention will become apparent from the following description of the figures. Showing:

Fig. 1

the exploded view of an embodiment of a known closure device,

Fig. 2a, 2b

A first embodiment of the device according to the invention in a perspective overall and detail view,

Fig. 3a, 3b

the embodiment shown in FIGS. 2a, 2b with the driver removed,

Fig. 4a, 4b, 4c

the top view of the embodiment shown in FIGS. 2 and 3 at different positions of the driver,

Fig. 5

Another embodiment of a known closure device,

Fig. 6a, 6b

a further embodiment of a device according to the invention in perspective view and detail view,

Fig. 7a, 7b

the embodiment shown in FIGS. 6a, 6b with the driver removed,

Fig. 8a, 8b, 8c

this embodiment in plan view at different positions of the driver,

Fig. 9a, 9b, 9c

a further embodiment of the device according to the invention in a perspective view, detail view and in sectional view,

Fig. 10a, 10b, 10c

a linear motor in plan view, perspective view and sectional view,

Fig. 11a, 11b

An embodiment of a pull-out guide according to the invention in a perspective view and in a sectional view,

Fig. 12

a further embodiment of a device according to the invention in a perspective view,

Fig. 13a, 13b, 13c

a further embodiment of a device according to the invention in a perspective view and in detail views and

Fig. 14a, 14b

a furniture with a device according to the invention in a perspective view and detail view.

Fig. 1 shows a known closure device 2 with a housing 7, which is anchored, for example, on a horizontal web of a support rail 19, not shown in Fig. 1 19 a pull-18.

In the housing 7, a carriage 8 is arranged linearly movable, wherein on the carriage 8, a driver 12 is tiltably mounted. The driver 12 is mounted on a slide 13 on the carriage 8 and has a not visible in Fig. 1 projection, by means of which he in a Guideway 29 of the housing 7 is guided. Furthermore, the carriage 8 has a stop 25 for an electric motor 3, not shown in FIG.

To force the carriage 8 in the closing direction two springs 14 are provided, which are anchored to an anchoring part 15. The anchoring part 15 is distanced in the mounting position of the housing 7. The distance of the anchoring part 15 from the housing 7 determines the tension of the springs 14.

FIG. 2 a shows a device 1 according to the invention with an electric motor 3 designed as a linear motor. The plunger 9 of the electric motor 3 lies loosely against the stop 25 of the carriage 8 of the closing device 2. In the state shown in Fig. 2a are carriage 8 and plunger 9 in the vicinity of its rear end position. In Fig. 2b, the driver 12 is partially shown in detail.

In FIGS. 3 a and 3 b, the device 1 is shown with a plunger 9 moved out of the housing of the electric motor 3. By the outward movement of the plunger 9 of the carriage 8 and thus arranged on it driver 12 of the locking device 2 along the housing 7 of the locking device 2 in the outer end position of the locking device 2 (parking position of the driver 12) was brought. Also shown is a not shown on a movable furniture part 6 or on a likewise not shown pull-out rail 20 of a pull-18 arranged driver pin 22 which is engaged in the notch 16 of the driver 12.

FIGS. 4a, 4b and 4c show a plan view of the device 1 according to the invention in various stages of the opening movement of a movable furniture part 6, not shown.

In Fig. 4a is not shown movable furniture part 6 in its closed end position in or on the furniture body. The driving pin 22 is located on the driver 12 of the locking device 2. The plunger 9 of the electric motor 3 is loosely against the stop 25 of the carriage 8 of the closing device 2. In the state shown in Fig. 4b, the plunger 9 of the electric motor 3, the carriage 8 and thus the driver 12 and the driving pin 22 has pushed outward, whereby the movable furniture part 6 has been moved from its closed end position in or on the furniture body. The carrier 12 tiltably mounted on the carriage 8 was thereby moved into its parking position. The driving pin 22 has not yet detached from the driver 12. In Fig. 4c, the driver pin 22 has detached from the driver 12 and the movable furniture part 6 has moved further in the direction of its fully open end position.

In Fig. 5, a further embodiment of a known closure device 2 is shown, which differs from the locking device 2 shown in Fig. 1 only in that the arranged in Fig. 1 on the carriage 8 projection 25 is now arranged directly on the driver 12 ,

As can be seen in FIGS. 6a, 6b and 7a, 7b and 8a to 8c, the driver 12 is acted upon directly by the plunger 9 in this exemplary embodiment. In this case, the plunger 9 with its free end in the state shown in Fig. 8a on the projection 25 of the driver 12, while the driver 12 and thus the projection 25 in the states shown in Figs. 8b and 8c was moved away from the plunger 9 ,

Both exemplary embodiments have in common that, during the closing movement of the movable furniture part 6, the driving pin 22 engages in the notch 16 of the driver 12 and turns it out of its parking position shown in FIGS. 4c and 8c. As soon as the projection of the driver 12 is in the guideway of the housing 7, pull the springs 14, the carriage 8 with the driver 12 to the rear, whereby the movable furniture part 6 is brought into its closed end position. The plunger 9 was already withdrawn a short time after the state shown in FIGS. 4c and 8c in the housing of the electric motor 3.

Of the embodiments shown in FIGS. 2 to 4, the embodiment of a device 1 according to the invention shown in FIGS. 9a, 9b and 9c differs only in that the plunger 9 of the electric motor 3 via a bracket 23 fixed to the carriage 8 of the locking device 2, instead of being loose. The arrangement of the device 1 in a pull-out guide 18 is shown by way of example in FIG. 9c. FIGS. 13a, 13b and 13c show a likewise advantageous exemplary embodiment, which differs from the exemplary embodiment illustrated in FIGS. 6 to 8 only in that the plunger 9 of the electric motor 3 is fixedly connected to the stop 25 of the driver 12 via a joint 26 the locking device 2 is connected, instead of lying loosely. Both alternative embodiments allow the support of the closing movement of the movable furniture part 6 as soon as the driving pin 22 engages in the notch 16 of the driver 12.

In FIGS. 10a, 10b and 10c, an electric motor 3 embodied as a linear motor is shown by way of example. Can be seen in Fig. 10c in particular the rotor 17, the stator 10 and the plunger 9, wherein the plunger 9 is integral with the rotor 17 is executed.

In FIGS. 10a and 10b it can be seen that, as an alternative to the aforementioned embodiments, the plunger 9 of the electric motor 3 designed as a linear motor rests loosely on an angle 24 which can be arranged on a pull-out rail 20, not shown, or on a movable furniture part 6, not shown ,

11a shows a perspective view of the arrangement of the electric motor 3 shown in FIGS. 10a to 10c on a pull-out guide 18, which has a mounting rail 19 to be arranged on the furniture body, an extension rail 20 to be arranged on the movable furniture part 6, and a middle rail 21 (FIGS b). Not shown are between the rails arranged carriages and the like. In Fig. 11 b, in particular arranged on the pull-out rail 20 driving pin 22 can be seen.

In Fig. 11a it can be seen that in this embodiment, the plunger 9 acts directly on the driving pin 22.

FIG. 12 shows a further exemplary embodiment of a device 1 according to the invention with a pinion 26 driven by an electric motor 3, not shown. Via a tooth profile 27 formed on the carriage 8 of the closing device 2, the electric motor 3 drives the carriage 8 and thus the driver 12.

In Fig. 14a, a furniture 5 is shown with a plurality of movable furniture parts 6, wherein the device 1 according to the invention is arranged in this embodiment in the region of the lowermost movable furniture part 6 (see detail view Fig. 14b).

Claims (35)

1. A device for moving a movable furniture part arranged in or on a body of furniture, in particular a drawer or a door, with a closing device for retracting the movable furniture part into a closed final position in or on the body of furniture, whereby the closing device has a catch to carry the movable furniture part and an energy-storing device, in particular at least one spring, to act upon the catch, characterised in that the device (1) comprises an electromotor (3) to drive the catch (12).
2. The device according to claim 1, characterised in that the catch (12) is detachably coupleable with the movable furniture part (6).
3. The device according to claim 1 or 2, characterised in that the catch (6) is disposed on a displaceable slide (8).
4. The device according to claim 3, characterised in that the catch (12) is rigidly connected to the slide (8) and is preferably made in one piece with the slide (8).
5. The device according to claim 3, characterised in that the catch (12) is movably, preferably tiltably, connected with the slide.
6. The device according to one of claims 1 to 5, characterised in that the energy-storing device of the closing device (2) acts upon the slide (8).
7. The device according to one of claims 1 to 6, characterised in that the device has a ram (9) acted upon the electromotor (3) to act upon the catch (12) or the slide (8).
8. The device according to claim 7, characterised in that the ram (9) is preferably pivotably connected with the catch (12) or the slide (8).
9. The device according to claim 11, characterised in that the ram (9) abuts loosely on the catch (12) or on the slide (8).
10. The device according to one of claims 6 to 9, characterised in that the energy-storing device of the closing device (2) can be charged by the electromotor (3).
11. The device according to one of claims 1 to 10, characterised in that the electromotor (3) comprises a stator (10).
12. The device according to claim 11, characterised in that the stator (10) comprises at least one electromagnet.
13. The device according to claim 11 or 12, characterised in that the electromotor (3) comprises a rotor rotatably disposed with respect to the stator (10).
14. The device according to claim 13, characterised in that the rotor comprises at least one permanent magnet.
15. The device according to one of claims 1 to 10, characterised in that the electromotor (3) is in the form of an electrical linear motor.
16. The device according to claim 15, characterised in that the linear motor comprises a stator (10).
17. The device according to claim 16, characterised in that the stator (10) comprises at least one electromagnet.
18. The device according to claim 16 or 17, characterised in that the linear motor comprises a runner (17) which is linearly displaceable with respect to the stator (10).
19. The device according to claim 18, characterised in that the runner (17) comprises at least one permanent magnet.
20. The device according to one of claims 16 to 19, characterised in that the device comprises a ram (9) acted upon by the linear motor to act upon the catch (12).
21. The device according to claim 20, characterised in that the ram (9) is disposed on the runner (17) and preferably is made in one piece with the runner.
22. The device according to one of claims 1 to 21, characterised in that a path-measuring device is integrated into the electromotor (3).
23. The device according to claim 22, characterised in that the path-measuring device comprises an inductive or capacitive sensor.
24. An extension guide for a movable furniture part arranged in or on a body of furniture, in particular a drawer or a door, with an extension rail attachable to the movable furniture part and a mounting rail attachable to the body of furniture, characterised in that it has a device (1) according to one of claims 1 to 23.
25. The extension guide according to claim 24, characterised in that the electromotor (3) is disposed on the mounting rail (19).
26. The extension guide according to claim 24 or 25, characterised in that the closing device (2) is disposed on the mounting rail (19).
27. The extension guide according to one of claims 24 to 26, characterised in that a pin member (22) is disposed on the extension rail (20).
28. The extension guide according to claim 27, characterised in that the pin member (22) can be acted upon by the electromotor (3).
29. The extension guide according to one of claims 24 to 28, characterised in that the pin member (22) is detachably coupleable with the catch (12) of the closing device (2).
30. A piece of furniture with at least one movable furniture part, in particular a drawer or a door, characterised by a device (1) according to one of claims 1 to 23, wherein the device (1) is preferably disposed in an extension guide (18) according to one of claims 24 to 29.
31. The piece of furniture according to claim 30, characterised in that the movable furniture part (6) can be retracted by the closing device (2) at least over a part of the total opening path leading up to the closed final position of the movable furniture part (6).
32. A method for moving a movable furniture part arranged in or on a body of furniture of a piece of furniture according to claim 30 or 31, characterised in that the movable furniture part (6) is ejected from its closed final position in or on the body of furniture by the electromotor (3).
33. The method according to claim 32, characterised in that the movable furniture part (6) is moved back into its final closed position by the closing device (2).
34. The method according to claim 32, characterised in that the movable furniture part (6) is moved back into its final closed position by the electromotor (3).
35. The method according to claim 33 or 34, characterised in that the closing movement of the movable furniture part (6) is damped by the electromotor (3).

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