WO2010130618A1

WO2010130618A1 - Ejection apparatus for movable furniture parts and method for controlling the ejection apparatus

Info

Publication number: WO2010130618A1
Application number: PCT/EP2010/056141
Authority: WO
Inventors: Alexander Gorges; Thomas Behnke; Stefan Andschus
Original assignee: Hettich-Oni Gmbh & Co. Kg
Priority date: 2009-05-12
Filing date: 2010-05-06
Publication date: 2010-11-18
Also published as: CN102421328A; DE102009025785A1; EP2429338B1; EP2429338A1; DE102009025785B4; CN102421328B

Abstract

The invention relates to an ejection apparatus for a movable furniture part, particularly a pivotable door of a piece of furniture, provided with a furniture body (1) having at least one wall (2), or several walls (2 to 6), wherein the ejection apparatus further comprises the following: an actuator element, particularly an ejection tappet (11), actuated by a drive device, said actuator element being detachably fixed to or in an actuator element receptacle (12), particularly an ejection tappet receptacle (12). The invention further relates to a method for controlling said ejection apparatus.

Description

Discharge device for movable furniture parts and method for controlling the ejection device

The invention relates to an off shock device for a movable furniture part, in particular a rotatable door, according to the preamble of claim 1 and a method for driving the ejection device.

An ejection device of known type shows the DE 20 2004 007 168 Ul. However, this known solution is not very suitable for practical use, since it requires a relatively large amount of space and greatly affects the appearance of the furniture to which it is mounted.

On the other hand, a further developed ejection device for movable furniture parts, such as revolving doors, shows the generic WO 2008/135315 A2. Thereafter, the ejection device is designed such that it can be integrated into one of the walls of the furniture. This saves installation space and is therefore optically particularly advantageous.

Based on this prior art, it is the object of the invention to further optimize the generic ejection device. With regard to the generic method, it is also the object of the invention to optimize the operation of the ejection device after a power failure.

The invention solves this problem by the subject matters of claim 1 and claim 7.

According to claim 1 the following object is provided: an ejection device for a movable furniture part, in particular a rotatable door, a piece of furniture having a furniture body with at least one or more walls, wherein the ejection device comprises: an actuator element movable by a drive device, in particular an ejection ram which is detachably fastened to or in an actuator element receptacle, in particular an ejection plunger receptacle. The releasable actuator element, in particular a movable ejection ram, is advantageous because it can be removed after a power failure. This is advantageous if the power failure occurs precisely at the moment in which the actuator element is in the extended (or pivoted out) state, so that it may not be possible to close the movable furniture part against the plunger. This may be the case because the transmission inhibition of a possibly downstream of an electric drive s device transmission between the drive device and the actuator element can not be overcome by hand, without damaging the transmission.

In addition, with the help of the detachable and thus exchangeable actuator element also, in a simple manner, in the production of different variants of ejectors can be generated by simply the appropriate ejection plunger is selected (eg, depending on the location and purpose, for example, a longer or shorter actuator element, in particular a longer or shorter ejection ram).

This object is supplemented particularly expediently by a sensor device for sensing the ejection plunger movement; and a control device, in particular a microcontroller, to which the sensor device and the drive device are connected, and which is provided with a control program, which is designed to control the drive device such that the actuator element in an extended position and in a retracted position is moved, wherein the control program further comprises an actuator element failure routine, with which the Aktuatorelementaufnahme is movable after a decrease of the actuator element in a position for re-attachment of the actuator.

The actuator element is preferably designed as an ejection ram and the actuator element receptacle is designed as an ejection ram receptacle. In order to allow a quick mounting and dismounting of the ejector plunger, the ejector plunger is releasably secured with a bayonet lock on or in the ejector plunger receptacle. There are also other releasable compounds used.

To display the Aktuatorelement- fault routine could also be possibly by the engine directly, a tone generation done when it is controlled so that it generates an audible signal.

The invention also provides a method for driving a Ausstoßvor- direction for a movable furniture part in which the Aktuatorelemen tauf would take after removal of the actuator element with a Aktuatorelement- malfunction routine in an opening s position is moved, in which the actuator element at the actuator atorelementaufnahme can be mounted.

The actuator element failure routine preferably uses the sensor device to determine whether the movable furniture part is in its opening after a movement of an opening and moves the actuator element receptacle into a mounting position for attaching the actuator element, if this condition is not met.

It is particularly advantageous if the actuator element fault routine is run through at least after a power failure that has occurred during an ejection process, as in a power failure u.U. the actuator element, in particular the ejection ram has been removed to close the movable furniture part, if the movable furniture part is in the moment of power failure in the open state. If the power is turned on again in this state, the ejection plunger pickup is retracted after a known S expensive procedure. In this state, however, the actuator element is usually not mountable. This problem is solved by the invention in a simple way.

In this case, in order to be able to signal to the user that he can reinstall the movable actuator element, it is expedient if an optical or acoustical signal is emitted if the movable furniture part follows a nem performing an opening movement is not in its opening s position or when the mentioned routine is started.

Advantageous embodiments of the invention can be found in the remaining subclaims.

The invention will be described in more detail below with reference to the drawing with reference to exemplary embodiments. It shows:

1 is a perspective view of an ejector with removed ejector plunger.

Figure 2 is a partial view of the ejection device of Figure 1 in a position where the pins of the ejection plunger with the latching contours of the ejector plunger holder are still engaged. 3 is a partial view of the ejection device of FIG. 3 in a position where the ejection plunger is no longer in contact with the ejection plunger receptacle; and

Fig. 4 is a circuit diagram for illustrating the construction of the invention; and Fig. 5 shows a perspective view of an exemplary box-shaped

Furniture body.

5 shows a perspective view of an exemplary box-shaped furniture body 1 with a plurality of walls, which here by way of example comprises a bottom wall 2, a top or top wall 3, two side walls, 4, 5 and a rear wall 6.

The walls 2 - 6 are preferably aligned at right angles to each other, the bottom wall 2 and the top wall 3 usually being horizontal and the side walls 3, 4 and the rear wall 6 being vertically aligned.

The furniture carcass which is thus open to one side can be closed by a movable furniture part, a revolving door 7, which is connected to at least one or more parts. or multi-axis hinge (s) 8 to a - usually vertically aligned - fixed or in space moving (in any case theoretically existing) pivot axis D pivoted and can be opened and closed.

The hinges 8 can be formed almost arbitrarily. Preferably, hinges are used, which are designed to be damped and preferably dampen the movement of the door 7 towards the closed and / or maximum opening s position, in particular from an opening angle position of 40 ° to 50 °.

To move the door 7 from its closed position (not shown here) to an open position, a discharge device 9 is arranged on the furniture body 1, which has a drive sab cut with a housing 10 and a relative to the housing 10 movable ejector plunger 11 ( as a preferred but not mandatory special case of an actuator element).

The ejection ram 11 is adapted to move the movable furniture part upon movement from a first to a second position, i. Here, the door 7 to push or push, whereby the door 7 is pivoted about the rotation axis D from the closed position in the opening s shown in FIG. 5 position or position. After sweeping over a first opening angle further opening can also be done by hand.

The ejector 10 is here designed such that its thickness or height is not greater than the thickness of the receiving wall, in Fig. 5 as the thickness d of the bottom wall. 2

The ejection device 9 serves to open the door 7 over a certain opening angle, for which purpose the ejection plunger 11 is extended out of the housing 10. The closing of the door is usually done by hand. Previously, the ejection plunger 11 is pulled back into the housing 10, which here has a plunger base 18 as a guide sleeve. The drive s device of the ejection device 9 for moving the ejection plunger 11 is preferably operated with electrical energy, for which purpose it may have an electric motor 19 (FIG. 4), which is followed by a drive mechanism (a transmission) 20 which is connected to the Ejection plunger 11 acts. The motor 19 may be preceded by a motor output stage 22 which is connected to the control device 16. The ejection device is further connected to a voltage s supply 21 and preferably has a device 23 for tone generation.

To here the door 7 after a power failure at the moment in which the ejection plunger 11 is in the extended state, to be able to close the door against the gear inhibition of the electric drive, the ejector plunger 11 is releasably secured to the ejector 9 (Fig. 1 to 4). The ejection plunger 11 is preferably detachably attached to the ejection device 9 so that the user can disassemble it without tools and, if necessary, also assemble it again.

For this purpose, the ejection plunger 11 - see Fig. 1, 2 and 3 - releasably on or in Fig. 1 "in" a here in the housing 10 in the guide 18 movably guided ejection tappet recording (as here more preferred, but not mandatory 3), which can be realized in various ways, for example by a thread (not shown here) or by a (in this case formed in a cylindrical section of smaller diameter) in a special case of an actuation element. Bayonet catch 13 with pin 14 on the ejector plunger 11 and corresponding guide and latch contours 15 in the ejector plunger holder 12th

Thus, it is possible to lock the ejection plunger 11 by means of an axial insertion movement and subsequent rotational movement about its longitudinal axis in the ejection plunger holder 12.

The ejection plunger receptacle 12 is itself movably arranged in the housing 10.

It is the actual part of the ejection device which is moved by a drive device shown in FIG. removable ejector plunger 11 is extended out of the housing 10 to the outside. The ejector plunger holder 12 and the ejector plunger 11 make the same stroke.

If the power supply is restored after a power failure, the drive mechanism 20 pulls the ejector plunger holder 12 into the housing 10, since this is the next step of the control program.

However, this can bring with it the problem (see FIG. 2) that the ejection plunger holder 12 is located so far in the housing 10 that it is no longer possible to latch onto it the ejection plunger 11.

This problem is counteracted by the invention in a simple way.

For this purpose, a sensor 17, which is connected wirelessly or via cable to the control device 16 (FIG. 4), is used with which the opening movement of the door 7 is monitored. This sensor 17 is arranged in FIG. 5 by way of example spatially separated from the ejection device 9. As the door sensor, the sensor 17 is preferably used. However, for this purpose there may also be another sensor, e.g. on the ejection device (Fig. 4).

If a power failure has occurred during an opening process, after a removal of the ejection plunger 11, the door 7 must first be closed by hand.

Now, if an opening movement is performed, ie the ejector plunger holder 12 is moved by the drive device in its open position, is monitored with the sensor 17, whether the position of the door changes. If this is not the case, this means that no ejection plunger 11 is located on / in the ejection plunger holder 12. In this case, the control device moves the ejection plunger receptacle into a position (typically in the fully open position), in which it is possible to fix the ejection plunger 11 again to the ejection plunger holder 12 (here locking into the ejection plunger holder 12). This position is detected by the position sensor 25. Preferably, the invention realizes an advantageous expensive method for driving the ejection device 9 after a power failure for re-starting a removable ejection plunger 11 with the following steps:

a) in the closed state of the door - which is sensed with the sensor device 17 - the movable ejection plunger seat 12 is moved to the open position of the movable furniture part; b) with the sensor device 17 is sensed whether the movable furniture part is in the open state; c) is sensed in step b) and recognized that the movable furniture part is in the open state, the ejector plunger holder 12 is retracted again; d) is sensed in step b) against it and recognized by the control device 16 that the movable furniture part is still in the closed state despite the opening movement of the ejector plunger receptacle, the ejection plunger receptacle 12 is moved at least into a mounting position in which the ejection plunger 11 on or in the ejection plunger receptacle 12 can be attached.

In the following, the invention will be considered again in more detail.

Since the ejection plunger 11 in the de-energized state of the drive device can not or only very difficult to move by hand to its basic position due to the gear inhibition, the ejector plunger 11 of the drive device is designed so that it can be seen through a bayonet system from the ejection plunger holder 12 , Thus, after removal of the ejector ram in case of power failure, closing the door allows. However, if the ejector ram is removed and the tension is restored, the following problem arises:

By switching on the supply s voltage (see also the device for voltage failure detection 24 in Fig. 4, preferably a non-volatile memory "remembers" a beginning power failure, eg if during the ejection Process the voltage drops by more than 2 volts; Power failures outside of the ejection processes are not taken into account, since the plunger is not extended here), the drive mechanism moves to the initial position for initialization. When inserting the previously removed ejection stößeis 1, this can not be locked in the bayonet 15, because the introduced into the drive device ejector plunger 11 does not provide the required for the latching rotary motion attack surface for a manual operation.

Preferably, the control device 16 causes the drive device, which has a control program with a corresponding power failure detection routine for this purpose, first, after a power failure, to drive the drive mechanism of the ejection slide 11 into the home position (system initialization, step 1),

The control device or electronics 16 of the drive device (here the housing 10, the electric motor 19, the drive mechanism 20, the power supply 21, the motor output stage 22) causes the driving of the drive device (here the electric motor 19, the drive mechanism 20) of the ejection butt 11 in the opening direction, but only if there was a power failure during the ejection process, which suggests a small door opening (step 2).

The control device 16 monitors the expected door movement (step 3) by means of a door-engaging sensor device 17 (in this case also the trip unit).

However, if the door movement fails, the control device 16 of the drive device recognizes a non-presence of the ejection ram (step 4).

The control device 16 of the drive device now causes the drive mechanism 20 to move with the plunger receptacle 12 for the ejection plunger 11 (FIG. 1) into a position which allows sufficient engagement surface for secure attachment and latching of the ejection plunger 11 with the bayonet closure 13 (FIG. Step 5). The drive mechanism extended to this position remains there for a defined time window (eg about 30 seconds, step 6). During this time, the user has the opportunity to open the door by hand to the ejector plunger 11 aufzustecken and lock.

If the new ejection ram test was successful, the ejection ram is considered "recognized" and the control electronics of the drive device cause the drive mechanism of the ejection ram 11 to move to the home position (the system is now ready for triggering an ejection operation) (step 7).

If the new ejector ram test was unsuccessful, procedures 2 through 6 are continually repeated until the ejector ram test routine "detects" an ejector ram.

The user is alerted to each new ejection ram test preferably by an acoustic signal. The user has always after the sounding of the signal again the ability to lock the ejector ram in the drive device.

The term ejection plunger seat 12 is not too narrow. The ejection plunger 11 can be used either in the ejection plunger holder 12, but it can also be placed in the manner of an outer sleeve on an inner ejection plunger holder 12.

It is conceivable to provide the off-jerk device 9 optionally with a damping device, which is particularly useful in the retrofit case of doors 7, which are provided with non-damped hinges 8. In this way, a damping function is realized in a simple manner when closing the movable furniture part, here the door 7, without impairing the appearance of the furniture and the ejection device 9.

It is also useful, if necessary to install a trigger button on the housing 10 or furniture body, which is manually operable. reference numeral

Furniture carcass 1

Bottom wall 2

Top or top wall 3

Side walls 4, 5

Rear wall 6

Revolving door 7

Hinge 8

Rotation axis D

Ejector 9

Housing 10

Ejector tappet 11

Ejector plunger holder 12

Bayonet closure 13

Pin 14

Lock contours 15

Control device 16

Sensor 17

Plunger base 18

Electric motor 19

Drive mechanics 20

Voltage s supply 21

Motor output stage 22

Sound-generating device 23

Power failure detection device 24 Position sensor 25

Claims

claims

An ejection device for a movable furniture part, in particular a rotatable door, a piece of furniture having a furniture body (1) with at least one wall (2) or more walls (2 to 6), characterized in that the ejection device of a drive device having movable actuator, which is detachably fastened to or in an actuator element recording.

2. Ejection device according to claim 1, characterized by the following further features: a) a sensor device (17) for sensing the ejection plunger motion; and b) a control device (16), in particular a microcontroller, to which the sensor device and the drive device are connected, and which is provided with a control program which is designed to control the drive device such that the actuator element is in an extended position and is movable into a retracted position, c) wherein the control program further comprises an actuator element

Has incident routine, with which the Aktuatorelementaufnahme is movable after a removal of the actuator element in a position for renewed application of the actuator.

3. Ejecting device according to claim 2, characterized in that the

Actuator element is designed as ejection plunger (11) and that the Aktuatorelementaufnahme is designed as ejection plunger receptacle (11).

4. Ejecting device according to claim 2 or 3, characterized in that the ejection ram (11) with a bayonet closure (14) on or in which the ejection plunger receptacle (12) is releasably attached.

5. Ejecting device according to claim 2, 3 or 4, characterized in that the ejection plunger (11) is releasably secured with a thread on or in the ejector plunger receptacle (12).

6. ejection device according to one of claims 3 to 5, characterized in that the ejection plunger (11) is releasably attached to the ejection device (9) such that it can be dismantled and assembled without tools.

7. A method for driving a discharge device for a movable

Furniture part according to claim 1, characterized in that the Auktuato- relementaufnahme is moved after a removal of the actuator element with the actuator element fault routine in an opening s position in which the actuator element on the Aktuatorelementaufnahme can be mounted bar.

8. The method according to claim 6 or 7, characterized in that the Aktuatorelement- faulty routine using the sensor device (16) determines whether the movable furniture part is after performing an opening movement in its opening s position and that the Aktuatorelementaufnahme in a mounting position is moved to attach the actuator when this condition is not met.

9. The method according to claim 7 or 8, characterized in that it comprises the following steps: a. in the closed state of the door, the movable Aktuatorelementaufnahme (10) is moved into the opening s position of the movable furniture part; b. it is determined with the aid of the sensor device (16) whether the movable furniture part is in the opened state; c. is in step b. sensed and recognized that the movable furniture part is in the open state, the Aktuatorelementaufnahme is retracted again; d. is in step b. is sensed and detected by the control device that the movable furniture part despite the opening movement of Aktuatorelementaufnahme is still in the closed state, the Aktuatorelementaufnahme is at least moved to a mounting position in which the actuator can be attached to or in the Aktuatorelementaufnahme.

10. The method according to claim 9, characterized in that before step a. the Aktuatorelementaufnahme in a closed position - an initialization lisierungsposition - is moved.

11. The method of claim 8, 9 or 10, characterized in that the Aktuatorelement- fault routine is traversed at least after a power failure.

12. The method according to any one of claims 7 to 11, characterized in that an optical or acoustic signal is output when the movable furniture part is not in its opening s position after performing an opening movement.