EP4083365A1 - Device for a furniture drive, furniture drive, and furniture - Google Patents

Abstract

A device (10) for a furniture part drive (3) is proposed, which comprises a drive unit for driven movement of a furniture part (4), the furniture part (4) being movably present on a piece of furniture (1), the device ( 10) has a triggering device (11) for switching the drive unit and wherein the triggering device (11) has a base body (12) and a contact element (13) which can be moved relative to the base body (12) and which, when the device (10 ) can be brought into contact with the furniture part (4), so that when the furniture part (4) is moved externally, the contact element (13) can be moved relative to the base body (12). According to the invention, the contact element (13) is coupled to a slide (14) of the triggering device (11) that is held on the base body (12) so that it can move linearly, with a linear movement of the slide (14) from a starting position of the slide (14) when a predeterminable value of a path covered by the slide (14) during the linear movement of the slide (14) from the starting position, a switching command for switching the drive unit can be triggered, and that an electrical unit is provided which, depending on a path position of the slide (14), provides an electrical signal to trigger the switching command for switching the drive unit.

Description

State of the art

Devices for a furniture part drive are known in the furniture sector. The devices are used to drive movable furniture parts such as flaps, doors or drawers on corresponding furniture such as cupboards or drawer furniture. The opening and/or closing movement of the furniture part relative to a furniture body of the piece of furniture takes place with the help of the furniture part drive, which comprises, for example, a drive unit or an electric drive or an electric motor.

A device in question has, for example, a triggering device for acting on the furniture part drive or its drive unit in order to switch the furniture part drive on and/or off.

Object and advantages of the invention

The object of the present invention is to improve a device as described in the introduction, in particular with regard to a reliable and extended functionality of the triggering device.

This object is solved by the independent claims. The dependent claims address advantageous and expedient developments of the invention.

The invention is based on a device for a furniture part drive, which has a drive unit for the driven Moving a piece of furniture comprises, wherein the furniture part is movably present on a piece of furniture, wherein the device has a triggering device for switching the drive unit and wherein the triggering device has a base body and a contact element which can be moved relative to the base body and which, when the device is attached to the piece of furniture, with the furniture part in Contact can be brought, so that when the furniture part is caused to move from the outside, the contact element can be moved relative to the base body.

The device and/or the furniture part drive is preferably designed as a structural unit which can preferably be attached to the furniture as a whole or in one piece. The furniture part drive comprises, for example, a fitting or a multi-joint and is preferably a flat fitting such as a flap fitting. The flap fitting is used for pivoting movement of the furniture part or a flap or door to z. B. a horizontal axis when the furniture is in use, e.g. B. a top flap cabinet. As a rule, exactly two fitting units are provided for moving a piece of furniture or corresponding flap fittings for an upper flap.

The triggering device, which includes a switch, for example, has a base body and a contact element, the contact element being movable relative to the base body. The triggering device is designed, for example, in the manner of a touch-latch system.

A touch-latch system is often integrated into furniture component drives or flap fittings. In this case, a closing or opening movement imposed from the outside of the furniture part present closed on the furniture carcass, such as an upper flap, is detected and converted into a trigger command for the furniture part drive.

The detection takes place, for example, with the contact element that can be moved or displaced relative to the base body, its state is detected, for example, using a control unit of the furniture part drive such. B. a control or regulation unit preferably with a microcontroller unit. The base body is preferably fixed to the furniture body or to the furniture part.

The essence of the invention lies in the fact that the contact element is coupled to a slide of the triggering device which is accommodated in a linearly movable manner on the base body, with a linear movement of the slide from a starting position of the slide when a predefinable value of a path covered by the slide is exceeded during the linear movement of the slide from the starting position, a switching command for switching the drive unit can be triggered, and that an electrical unit is provided which, depending on a travel position of the slide, provides an electrical signal for triggering the switching command for switching the drive unit. A particularly advantageous triggering device can thus be provided. The triggering device preferably has a sensor function or a sensor unit with which an analog signal can be provided.

The contact element acts, for example, between a side of the furniture body that faces the furniture part and a side of the furniture part that faces the side of the furniture body when the furniture part is in the closed state on the furniture body. If, for example, the closed furniture part is pressed in the direction of the side of the furniture body, which is done from the outside by a user, the contact element is offset relative to the base body. As a result, the release command is given. The displacement of the contact element is detected beforehand by the control unit of the furniture part drive, with the control unit including in particular a computer unit. A corresponding command is forwarded from the control unit to the drive unit. The drive unit receives the command or a drive command to open the furniture part. When the drive is activated, the furniture part opens relative to the Furniture body, guided with the help of the furniture part drive or, for example, the flap fitting. A powered closing of the furniture part is possible in this way, with a direct z. B. manual action on the contact element.

The electrical signal is preferably provided when the slide covers a defined, predetermined or predeterminable distance and/or reaches or assumes a defined, predetermined or predeterminable path position. The defined, predetermined path position of the slide is preferably exactly one predetermined path position of the slide among a large number of different possible path positions of the slide along its entire possible movement path. It is also conceivable that two or more different travel positions can be predetermined, with an electrical signal for triggering the switching command for switching the drive unit being provided for each predetermined travel position when the slide is reached. An electrical signal is designed in particular to selectively trigger a predefinable switching command for switching the drive unit. The switching command can be specified in such a way that the drive unit is switched on if the drive unit is switched off at this point in time. Alternatively or additionally, the switching command can be specified in such a way that the drive unit is switched off or switched off if the drive unit is switched on at this point in time. A switching command is preferably issued to switch on the drive unit, which preferably relates to a stationary closed state of the furniture part on the piece of furniture and/or a stationary open state of the furniture part, preferably in a completely closed state or to a completely open state of the furniture part on the piece of furniture.

An analog signal is in particular a signal with a stepless and uninterrupted progression, in particular a progression over time. In particular, an analog signal is described as a smooth function.

With the linear relationship of the travel position of the moving slide, a predefinable travel distance and/or a predefinable travel position of the slide is advantageously used as a basis for a switching signal. Preferably, each path and/or each path position is assigned a respectively distinguishable associated signal, preferably an electrical signal. The electrical signal is recorded or recognized by the control unit. It is thus preferably the case that, for example, when the exactly predeterminable path position of the slide is reached, the associated electrical signal or the specific electrical signal serves as a prerequisite for the triggering command and the drive unit is then activated.

The displacement signal preferably correlates with an associated electrical signal.

The device is designed, for example, as part of a furniture part drive such as a flap drive for a flap or a door of a piece of furniture. In particular, an analog signal is provided with the triggering device. The relationship between the distance covered by the slide and a further measured variable such as the signal voltage, the voltage that can be tapped as a sensor signal, results in a particularly continuous function.

Preferably, the contact element can be moved linearly, preferably directly and identically, together with the slide. The linear movement of the slide preferably serves to measure an absolute depressing path of the contact element. A starting position of the slide when the furniture part is closed and at rest, which specifies the position of the contact element in contact with it, correlates z. B. with a zero position of the trigger unit or the device. Accordingly, the starting position preferably correlates in particular with a closed position of the closed furniture part in contact with the contact element.

The triggering unit is preferably designed as an electrical button, in particular as a furniture part button or analog pushbutton.

The movement of the slide via a movement of the contact element is preferably effected by external action, e.g. B. on the pending on the contact element furniture part or by pressing contact with the contact element, if a person presses on the furniture part from the outside and during its movement, the contact element is moved. Alternatively, the person presses directly or directly, by manually pressing the contact element, on the contact element if this is free or accessible from the outside or an operating side of the furniture, especially if the contact element is not covered or covered by the furniture part .

For the operation of the tripping unit, an electrical supply of the tripping unit is provided, for example a supply via a power grid or an electrical energy store such as a rechargeable battery.

The linear movement of the slide is advantageously detected with a sensor of the device, which works on the basis of the Hall effect. The sensor is preferably part of the triggering device. The sensor is preferably accommodated on the base body. If a current-carrying conductor is in a stationary magnetic field, an electrical voltage appears perpendicular to both, this is the Hall effect. The sensor preferably includes a Hall element. The Hall element is a converter whose output voltage, i.e. the sensor voltage, depends on the strength and direction of a magnetic field. Triggered by the Lorenz force, a current-carrying conductor that is in a magnetic field generates a voltage, the so-called Hall voltage. The sensor also includes a magnet arrangement or a magnet body for generating the magnetic field. The magnetic field is preferably provided with a plurality of, preferably with exactly two, spaced apart or separate magnetic bodies of the magnet arrangement, which each form an associated magnetic field. The overall magnetic field, which is partly superimposed by the magnet bodies, is preferably designed to be almost linear in the area in which the Hall element is present. A preferably constant voltage is applied externally to the sensor or the Hall element. The electrical supply is realized via a current-carrying line. The signal voltage that can be recorded and made available to the control unit or the microcontroller is the Hall voltage. The sensor has, for example, a preferably stationary Hall element, which is located in the area of the magnetic field of the magnet arrangement in which a linear magnetic field line profile is formed. The magnet arrangement for forming the magnetic field comprises a magnet, preferably exactly two or exactly three or exactly four permanent magnets or permanent magnets, for example. The magnet arrangement is part of the device for driving the furniture part or part of the triggering device.

The magnet arrangement with the magnet, preferably a permanent magnet arrangement, is preferably coupled to the slide, for example with or connected to it. The magnetic field is preferably modeled in such a way that it forms at least almost linear or straight magnetic field lines in the area in which the Hall element is located. The magnetic field lines in the relevant area of the magnetic field are preferably aligned in the direction of movement of the slide or at least aligned almost linearly.

A kinematically reversed arrangement is not ruled out in principle, according to which the Hall element is movable or coupled to the slide and the magnet arrangement is stationary for this purpose, for example accommodated on the base body.

According to an advantageous modification, the triggering device comprises a permanent magnet arrangement with a permanent magnet. The permanent magnet arrangement is preferably part of the sensor of the triggering device. Preferably, the triggering device, comprising a conductive connection point for electrically conductive connection to the electrical supply, designed as a unit that can be attached to the furniture part drive, which z. B. facilitates a subsequent upgrade of a conventional furniture part drive.

With the permanent magnet arrangement, which comprises exactly one or more, preferably exactly two, permanent magnets or permanent magnets, the triggering device can be designed in a simple and functionally reliable and economically advantageous manner.

The permanent magnet arrangement is preferably provided on the slide. The linear movement of the contact element leads to a corresponding linear movement of the slider and thus to a linear movement of the permanent magnet arrangement relative to the sensor or Hall element.

The change in the signal voltage or Hall voltage that can be detected is processed by the control unit as an electrical signal as a trigger command. Corresponding or connected contacts are available for detecting the signal voltage.

Another advantage can be seen in the fact that the permanent magnet arrangement of the triggering device comprises two permanent magnets which are spaced apart by a gap, both permanent magnets being aligned with the same magnetic pole towards the gap.

The magnetic field that can be generated with the two permanent magnets preferably forms linearly extending magnetic field lines in the area in which the sensor is present. The magnetic field lines are preferably in the direction of movement of the linearly aligned. The slide is matched to the generated magnetic field in such a way that, based on the area of the magnetic field in which the slide is present or surrounds it, the movement of the slide takes place along its movement path in the direction of the linear magnetic field lines of the generated magnetic field. With the generated magnetic field in its linear magnetic field line range, a z. B. linear relationship between the tappable signal or Hall voltage and the position of the slider. This means that an analog signal can be generated and further processed with the tripping device based on the Hall voltage that can be tapped at the Hall element. For example, each signal voltage that can be tapped is assigned exactly one associated path position of the slider and thus of the furniture part during its movement. Because the furniture part is movement-coupled by contacting the contact element and the common movement with this and thus the furniture part position is coupled with the slide. The electrical signal for triggering the switching command for the drive unit can thus be provided via a predeterminable signal voltage, with its detection, in particular a travel position of the slider and thus via a predeterminable position of the furniture part. The assignment of a defined signal voltage to the travel position of the slider is preferably carried out by an underlying or previous calibration.

After the furniture part or the flap or door has traveled an exactly definable push-in path, or when the slide has reached a predefined travel position, the drive unit is switched in the closed position relative to the furniture body and the furniture part moves or opens in a driven manner counter to its push-in or open position. Trigger movement according to a touch-latch trigger.

It is advantageous if the sensor of the device has a Hall sensor element within a magnetic field generated by the permanent magnet arrangement. This allows an analog Provide signal easily and precisely with the triggering device. A desired triggering path or a triggering position of the slide and thus a triggering path or an exact triggering position of the furniture part when it is pressed in from the closed rest position can advantageously be provided. In addition, the closed position of the furniture part can be approached exactly and repeatably at the end of a driven closing movement when the furniture part is in contact with the contact element at the end of its closing movement driven by the drive unit. The moment the drive unit stops, the furniture part remains in the closed position it has reached, as does the slide with the contact element.

According to an advantageous modification, the sensor of the device has a Hall sensor element in an intermediate space between two spaced-apart permanent magnets of the permanent magnet arrangement of the triggering device. It is thus advantageously possible to provide an analog signal or sensor signal.

Both permanent magnets and the Hall sensor element are preferably positioned offset to one another in the direction of the linear movement path of the slide. Preferably, the two permanent magnets along a z. B. straight line in the direction of movement of the slide available or offset from each other. The two permanent magnets are preferably identical.

It is also advantageous if the sensor of the device has a Hall sensor element which is present in a fixed position on the triggering device. This is an uncomplicated construction.

It is also advantageous that the slide is movably mounted in a prestressed manner. With the associated bias, the slide and thus the contact element moves automatically without external force z. B. by a person, what else by the furniture part pressing on the contact element, to a defined or predeterminable position of the slide, such as in particular a starting position. The bias preferably causes an automatic movement of z. B. an engaged depressed position of the slide in the starting position. The stationary initial position or starting position of the slide and the contact element is set in particular when the furniture part is open and there is no contact between the furniture part and the contact element. When the device is assembled in the starting position, the contact element preferably protrudes forwards beyond a front plane of the furniture body, in particular in the direction of an inside of the furniture when the furniture part approaches the contact element when the furniture part is closed. The furniture part thus comes into reliable contact with the contact element when it is closed before it reaches a section of the front plane of the furniture body in contact with it. With further closing movement of the furniture part, the contact element then deviates somewhat against the pretension until the furniture part reaches its rest or closed position. A closing gap, which is necessary for the touch-latch system, preferably arises between an inner side of the furniture part and a front side of the furniture body.

In the starting position, the slide preferably rests securely against a mechanical stop due to the prestressing and/or the contact element coupled to the slide preferably contacts a mechanical stop in the starting position. The queuing at the stop is preferably carried out under pressure or under a remaining compressive force by the action of force by means of the pretension.

The slide is preferably mounted in a resilient, linearly movable manner or the prestressing is realized with a spring. The bias is z. B. set up with a compression spring such as a coil spring, which the slide and thus the contact element in the direction of the starting position or the Start position of the slider is pressing. The front or contact side of the contact element related to the installed state of the device on the piece of furniture preferably protrudes beyond the front side or front plane of the furniture body in the direction of the furniture part, based on its closed position on the piece of furniture.

The invention is advantageously aimed at a furniture part drive with a drive unit for the driven movement of a furniture part that is movably present on a piece of furniture, with a device according to one of the configurations described above being present.

In this way, a furniture part drive, such as preferably a flap drive, can advantageously be provided with an articulated or pivoting arrangement.

When the furniture part drive is mounted, it is present between a furniture body and the furniture part. The drive unit preferably includes a motor such as an electric motor. The device is z. B. present at about half the height of the furniture body. A safe triggering of the touch latch by a person is then also possible with a touch latch when pressing on a vertically lower area of the furniture part.

It is also advantageous if the device is integrated in a structural unit of the furniture part drive, the structural unit being designed for attachment to a furniture body. The structural unit of the furniture part drive is preferably designed as a coherent unit and/or that can be mounted individually on the piece of furniture. The structural unit of the furniture part drive can preferably be used in a prepared recess on an inside of a wall of the furniture body, preferably in one piece or as a whole. The furniture part is preferably connected to the furniture body via an articulated arm or hinge arm of the furniture drive.

Finally, it is advantageous for a control unit to operate the furniture part drive to be present, which communicates with the sensor and the drive unit, with a definable zero position of the contact element being able to be specified by the control unit during a closing process of the furniture part driven by the furniture part drive . In this way, an exactly predefinable closed position of the furniture part relative to the furniture body can be approached anew, driven by the drive unit, preferably with each closing process.

The control unit preferably has a microcontroller unit or a programmable computer unit with appropriate operating software. The control unit also communicates with the furniture part drive such as the electric motor. The control unit serves in particular to control and/or regulate the furniture part drive.

The control unit is preferably designed in such a way that the same or definable zero position of the slide is approached with each closing process. At the end of each driven closing process of the furniture part, the contact element and thus the furniture part reach a predefinable same initial position, which correlates with the closed position of the furniture part.

In addition, the invention relates to a piece of furniture with a furniture body and a furniture part and with a furniture part drive as described above. The furniture is, for example, a cabinet furniture such as a top flap cabinet.

character description

Fig. 1

ein schematisiert dargestelltes Möbel in Seitenansicht mit einem an einem Möbelkorpus über einen Möbelteil-Antrieb bewegbar aufgenommenen Möbelteil in einer teilweise geöffneten Stellung unter Weglassung einer in Blickrichtung ersten Seitenwand von zwei Seitenwänden des Möbelkorpus,

Fig. 2

das komplette Möbel in Seitenansicht gemäß Fig. 1, wobei das Möbelteil kurz vor Erreichen seiner Schließstellung dargestellt ist,

Fig. 3

einen vergrößerten Ausschnitt des Möbels gemäß Fig. 2 unter Weglassung der ersten Seitenwand des Möbelkorpus,

Fig. 4

das Möbel gemäß Fig. 1-3 in Seitenansicht mit dem Möbelteil in Schließstellung,

Fig. 5

einen vergrößerten Ausschnitt des Möbels gemäß Fig. 4 unter Weglassung der ersten Seitenwand des Möbelkorpus,

Fig. 6

das Möbel in Seitenansicht mit dem Möbelteil in einer Betätigungsstellung, die aus der Schließstellung gemäß Fig. 4 durch Drücken von außen auf das Möbelteil erreicht wird,

Fig. 7

einen vergrößerten Ausschnitt des Möbels gemäß Fig. 6 unter Weglassung der ersten Seitenwand des Möbelkorpus,

Fig. 8

eine perspektivische Detailansicht eines Schalters des Möbelteil-Antriebs in einer Zwischenstellung eines Schiebers des Schalters,

Fig. 9

eine perspektivische Detailansicht des Schalters gemäß Fig. 8 in einer ausgerückten Stellung des Schiebers des Schalters und

Fig. 10

eine perspektivische Detailansicht des Schalters gemäß Fig. 8 in einer eingerückten Stellung des Schiebers des Schalters.

Further features and advantages of the invention are explained in more detail using an exemplary embodiment. In detail shows:

1

a schematized piece of furniture in a side view with a furniture part that is movably received on a furniture body via a furniture part drive in a partially open position with the omission of a first side wall of two side walls of the furniture body in the viewing direction,

2

the complete piece of furniture in side view according to 1 , wherein the furniture part is shown shortly before reaching its closed position,

3

according to an enlarged section of the furniture 2 omitting the first side wall of the furniture body,

4

the furniture according to Figures 1-3 in side view with the furniture part in the closed position,

figure 5

according to an enlarged section of the furniture 4 omitting the first side wall of the furniture body,

6

the piece of furniture in side view with the furniture part in an operating position, from the closed position according to 4 is achieved by pressing on the furniture part from the outside,

7

according to an enlarged section of the furniture 6 omitting the first side wall of the furniture body,

8

a perspective detailed view of a switch of the furniture part drive in an intermediate position of a slide of the switch,

9

a detailed perspective view of the switch according to FIG 8 in a disengaged position of the spool of the switch and

10

a detailed perspective view of the switch according to FIG 8 in an engaged position of the spool of the switch.

the Figures 1 to 7 relate to a piece of furniture 1, which is designed as a wall cabinet with a spatially fixed furniture body 2 and a furniture part 4 that can be moved thereon via a furniture part drive 3, which is designed here, for example, as a flap or top flap and can be pivoted about a horizontal axis A on the piece of furniture 1 is. The furniture part drive 3 indicated in outline according to an edge 3a is accordingly designed as a drive for a top flap fitting 5, preferably comprising an electric motor. For this purpose, 5 fittings or hinge means with z. B. formed a hinge or articulated arm 5a. The edge 3a of the furniture part drive 3, which is countersunk on the inside in a recess of a second side wall 6 of the piece of furniture 1, for example, is schematically rectangular.

The upper flap fitting 5 comprises, for example, a single or preferably a multi-joint such as a four- or five-joint. The multi-joint preferably has a plurality of joint axes positioned parallel to one another, around which a respective articulated arm of the multi-joint can be rotated when the furniture part 4 moves relative to the furniture body 2. The articulated arm 5a fixed on an inner side 4a of the furniture part 4 is in 1 partly visible.

The furniture body 2 of the furniture 1 shown in a highly schematic manner has related to the according to FIG Figures 1 to 7 Shown state of use of the piece of furniture 1, the two opposite vertically aligned side walls 6, a body rear wall 7, a horizontal top panel 8 and a horizontal bottom panel 9.

The furniture part drive 3 has a drive unit (not shown) for moving the furniture part 4 in a driven manner. for example an electric motor. In addition, the furniture part drive 3 has a device 10 with a triggering device 11 for switching the drive unit.

The device 10 is preferably designed as an analog button or analog push button.

The triggering device 11 comprises a base body 12 and a contact element 13 with a contact surface 13a (see Fig. 8 ). The contact element 13 is coupled or movement-coupled to a linearly movable slide 14 of the triggering device 11 that is accommodated on the base body 12, here z. B. firmly connected. The slider 14 is linearly reciprocable relative to the body 12 according to the directions R1 and R2 between opposite spaced end positions of the slider 14 on the body 12 . The slider 14 is biased movable on the base body 12 or resiliently mounted by a spring 19 such. B. a coil spring. The spring 19 is clamped with its ends between a base 20 on the base body 12 and a lower projection 21 on the slide 14.

To specify the end positions of the slider 14, a mechanical stop 15 or 16 is preferably formed on the base body 12, for example. The stops 15, 16 are, for example, perpendicular flat sections.

When the slide 14 is in a moved-out end position, the stop 15 interacts with a contact section 17 formed on the slide 14 . According to FIG 9 the contact section 17 is in contact with the stop 15 . This position of the slide 14 with the contact element 13 according to 9 corresponds to the in 1 shown position, so if no compressive force in the direction of R2 on the contact element 13 acts from the outside and thus the spring 19 according to the slide 14 in the end position 9 urges The contact element 13 with the contact surface 13a protrudes beyond a vertical plane E on the front side of the furniture body 2 .

In the further end position, not shown, of the slide 14 on the base body 12 moved in at maximum in the direction R2, a contact section 18 which is present on the slide 14 stands together with the stop 16 . 10 shows a position of slide 14, which is moved in direction R2 by a compressive force F, shortly before it reaches the further end position on base body 12.

According to 8 the slide 14 is in a stationary starting position on the base body 12, ie in a middle position or position, for example, based on the entire possible movement path of the slide 14. This path position represents an intermediate position between the two end positions. A force acts against the action of the spring 19 on the contact surface 13a in the direction R2.

According to 1 the device 10 integrated in the furniture part drive 3 or the analog button is preferably in the upper half to approximately in the upper quarter of the furniture body 2 or in the vicinity of the upper flap fitting 5 with its hinge function.

the Figures 2 and 3 show that from an open position z. B. according to 1 in the closing or pivoting direction S1 (see 1 ) furniture part 4 moving towards plane E at the moment of contacting a section of the inside 4a of the furniture part 4 with the device 10 or the contact surface 13a of the contact element 13, which is completely extended relative to the base body 12, as is shown in 9 is shown. The closing movement of the furniture part 4 takes place in the closing direction S1 driven by the z. B. E-motor of the furniture part drive 3.

Since the device 10 communicates with the furniture part drive 3, z. B. preferably via a control unit (not shown) with operating software or microcontroller, it is preferably programmed or predetermined that, for example, each time the driven closing of the furniture part 4 or each z. B. second, third or fourth time the furniture part drive 3 moves the furniture part 4 to the predetermined closed position, according to Figures 4, 5 . The device 10 or the contact element 13 or the slide 14 adjusts itself to a zero position defined with the specified closed position, each time adjusted by the analog specified path position of the slide 14.

The achieved resting closed position of the furniture part 4 show the Figures 4 and 5 , so after the drive unit of the furniture part drive 3 is switched off. Accordingly, the contact surface 13a of the contact element 13, when the slide 14 has reached the zero position in which the drive unit or the electric motor is switched off, is in contact on the inside against the inside 4a of the furniture part 4 Level of furniture part 4 aligned parallel to level E of the front of furniture body 2 (see Fig. Figures 4, 5 ). The slide 14 is, for example, in a middle intermediate position or travel position (see 8 ) a possible maximum path of movement of the slider 14 relative to the base body 12 of z. B. 5 millimeters.

the Figures 6 and 7 show a triggering process by pressing with a force A on the outside of the furniture part 4 according to a touch-latch system for triggering a switching command for switching or switching on the drive unit of the furniture part drive 3. As a result of the furniture part 4 pivoting slightly inwards in the closing direction S1 a force K acts from the inside 4a on the contact surface 13a and moves the contact element 13 and the slide 14 in the direction R2, for example according to FIG 10 . Upon detection of a resulting changing signal voltage of a sensor 23 described below by a movement of Slider 14 in the direction of R2 by, for example, a few tenths of a millimeter is z. B. a microcontroller unit of the control unit processes this signal and the drive unit of the furniture part drive 3 is switched on and the furniture part 4 is driven in the opening direction against the direction S1 or opened. The total possible operating stroke of the slide 14 in the direction R2 is, for example, 1.5 millimeters, which corresponds to a closing gap SP between the inside 4a and the plane E when the furniture part 4 is closed figure 5 correlated.

The device 10 or the analog button comprises an electrical line 22, via which the sensor 23, which is designed as a Hall sensor and is accommodated on the base body 12 between the stops 15 and 16, is electrically supplied. The sensor 23 is designed as a Hall element or Hall sensor. The device 10 also has a magnet arrangement 24 with two permanent magnets 25 and 26 spaced apart from one another in the direction R1 and R2, between which the sensor 23 is present in the direction of movement of the slide 14. The two permanent magnets 25 and 26 with their magnetic fields M1 and M2 are aligned towards each other with their same magnetic poles south to south, alternatively north to north, so that a change in the path position of the slide 14 along its path of movement during its movement causes a change in the am Sensor 23 or Hall sensor causes tappable signal voltage or Hall voltage, which is used to trigger a switching command. When the slide 14 is moving, a trigger command is thus detected and processed by the control unit to trigger the switching command for switching the drive unit. Subsequently, the force A caused by the user letting go of the furniture part 4 no longer exists, the furniture part 4 is moved in a driven manner in the opening direction counter to the closing direction S1 or pivoted away upwards until a predeterminable open position of the furniture part 4 on the furniture body 2 is reached Position of the furniture part 4 according to 1 run over against Direction S1. At the end of the opening movement, the furniture part 4 is almost horizontal or preferably pivoted up a little further.

Reference List

1

furniture

2

furniture body

3

Furniture part drive

3a

edge

4

furniture part

4a

inside

5

top flap fitting

5a

articulated arm

6

Side wall

7

body back panel

8th

topsoil

9

underbody

10

contraption

11

release device

12

body

13

contact element

13a

contact surface

14

slider

15, 16

attack

17, 18

investment section

19

Feather

20

base

21

head Start

22

Management

23

sensor

24

magnet arrangement

25

permanent magnet

26

permanent magnet

Claims (12)

Device (10) for a furniture part drive (3), which comprises a drive unit for driven movement of a furniture part (4), the furniture part (4) being movably present on a piece of furniture (1), the device (10) having a triggering device (11) for switching the drive unit and wherein the triggering device (11) has a base body (12) and a contact element (13) which can be moved relative to the base body (12) and which, when the device (10) is attached to the piece of furniture (1), communicates with the furniture part (4) can be brought into contact, so that when the furniture part (4) is moved externally, the contact element (13) can be moved relative to the base body (12), characterized in that the contact element (13) can be moved linearly on the base body (12) recorded slide (14) of the triggering device (11) is coupled, with a linear movement of the slide (14) from a starting position of the slide (14) when a predetermined value is exceeded by the slide r (14) distance covered during the linear movement of the slide (14) from the starting position, a switching command for switching the drive unit can be triggered, and that an electrical unit is provided which, depending on a travel position of the slide (14), provides an electrical signal for Triggering of the switching command to switch the drive unit. Device according to Claim 1, characterized in that the linear movement of the slide (14) is detected using a sensor (23) of the device, which works on the basis of the Hall effect. Device according to Claim 1 or 2, characterized in that the triggering device (11) comprises a permanent magnet arrangement with a permanent magnet (25, 26). Device according to one of the preceding claims, characterized in that the permanent magnet arrangement of the triggering device (11) comprises two permanent magnets (25, 26) spaced apart by a gap, both permanent magnets (25, 26) being aligned with the same magnetic pole towards the gap. Device according to one of the preceding claims, characterized in that the sensor (23) of the device (10) has a Hall sensor element within a magnetic field generated by the permanent magnet arrangement. Device according to one of the preceding claims, characterized in that the sensor (23) of the device (10) has a Hall sensor element in a space between two spaced-apart permanent magnets (25, 26) of the permanent magnet arrangement of the triggering device (11). Device according to one of the preceding claims, characterized in that the sensor (23) of the device (10) has a Hall sensor element which is fixed in position on the triggering device (11). Device according to one of the preceding claims, characterized in that the slide (14) is mounted movably under tension. Furniture part drive (3) with a drive unit for the driven movement of a furniture part (4) which is movably present on a piece of furniture (1), with a device (10) according to one of the preceding claims. Furniture part drive (3) according to Claim 9, characterized in that the device (10) is integrated in a structural unit of the furniture part drive (3), the structural unit being designed for attachment to a furniture body (2). Furniture part drive (3) according to claim 9 or claim 10, wherein a control unit for operating the furniture part drive (3) is present, which communicates with the sensor (23) and the drive unit, wherein a predeterminable zero position of the contact element (13 ) can be specified by the control unit during a closing process of the furniture part (4) driven by the furniture part drive (3). Furniture (1) with a furniture body (2) and a furniture part (4) and with a furniture part drive (3) according to one of Claims 9 to 11.

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