EP2040580B1 - Device for moving furniture parts that can be moved towards each other, and piece of furniture - Google Patents

Abstract

Disclosed is a device (43) for moving furniture parts (1, 2) that can be moved towards each other. Said device (43) comprises a drive unit which allows a first furniture part (2) to be drivingly moved relative to a second furniture part (1). An arm which is placed between the furniture parts (1, 2) and can be swiveled by means of the drive unit is configured such that the first furniture part (1) is drivingly moved by swiveling the arm. The inventive device is characterized, among other things, in that contact means are provided for at least temporarily coupling a final section of the arm to one of the furniture parts (2) during the swiveling movement of the arm. Also disclosed is a piece of furniture which comprises such a device and a first furniture part (2) that is movable relative to a second furniture part (1).

Description

The invention relates to a device according to the preamble of claim 1 and a furniture according to claim 15.

State of the art

Devices for moving mutually movable furniture parts, wherein a furniture part is moved relative to another furniture part by means of a drive unit and the driven movement of the furniture part takes place by a driven pivoting movement of an arm are already known, see for example WO 2004/100718 A1 , The international patent application WO 2006/017865 A1 shows, for example, a support member for attachment in a furniture carcass, wherein on the support member an ejection device for ejecting a movable furniture mounted in the furniture body part is attachable. With regard, in particular, to the reliability or to the maximum possible force transmission to the furniture part to be moved, the known devices can not be used in the desired manner or are not technically mature.

Purpose and advantages of the invention

Object of the present invention is to provide a device of the type mentioned, which for a Variety of applications is technically or economically advantageous or to provide a corresponding furniture ready.

This object is based on the preamble of claim 1 by the claim 1, or solved by the claim 15. In the dependent claims advantageous and expedient developments of the invention are shown.

The invention is initially based on a device for moving movable furniture parts, with a drive unit by means of which a first furniture part is movable relative to a second furniture part movable, wherein a trained between the furniture parts and pivotable with the drive unit arm is designed such that the pivoting of the arm is the driven movement of the first furniture part. An essential aspect of the invention is that abutment means for temporarily coupling an end portion of the arm with one of the furniture parts in the pivoting movement of the arm are provided, wherein the abutment means comprise a receiving contour into which the end portion of the arm can snap when Verschwenten. By means of the attachment means according to the invention, which act between the pivoting arm and the furniture part to be moved cooperating with the arm, a reliable or reliable coupling of the relevant parts can be made possible, which is generally effective at least for the pivoting movement of the arm. The once established and again releasable coupling is set up, for example, by exceeding a force to be applied for the device of the coupling state or a connected latching state or only released again when a counteracting force is exceeded. This can be done more reliable overall the driven movement of the moving furniture part. In addition, comparatively larger forces in the pivoting movement of the arm on the moving furniture part can be transfer. In particular, it can be avoided that the arm is only pressed when pivoting on the furniture part to be moved or undefined or not sufficiently firmly coupled coupled. Possibly occurring in rough use vibrations or forces from the outside on the device or the considered furniture parts, which could possibly cause even a short-term separation of the arm of the moving furniture part when pivoting, can be avoided or for the coupled situation without remain detrimental effect.

The investment means may inter alia, e.g. a magnetic or Velcro connection or another adhesive bond include.

The proposed arrangement can be used primarily for a driven ejection movement from a closed position of the first furniture part in a partially open, extended or swung-out movement, with a possible further movement of the first furniture part can then be done, for example by hand.

In particular, the arm and the furniture part in contact with the arm is not readily decoupled or is decoupled only when exceeding a particular adjustable force value. An e.g. unintentional or comparatively low bumping by a person or an object on the driven furniture part, which can occur again and again in practice, is not critical for a smooth or trouble-free movement of the furniture part to be moved.

In principle, the pivotable arm can in particular be fixed in particular on the non-moving second furniture part in particular fixed or possibly also arranged displaceably to a certain extent. However, it is also conceivable that the arm is attached to the first or moving furniture part and is moved with this when pivoting the arm.

If the drive unit attached to the second furniture part, the drive unit, for example, on a furniture back wall z. B. at the height of a moving furniture part, e.g. be positioned opposite a drawer rear wall or behind, below or above the drawer.

The drive unit may for example consist of an electric or geared motor, with which the swivel arm can be pivoted with a pressure roller or a coupling piece. To trigger the drive unit, in particular an adjustable release contact or release sensor can be provided. The power supply of the drive unit can, for example, advantageously be provided with low voltage, e.g. of 12 volts or 24 volts. A transformer or transformer required for this purpose can advantageously be accommodated, for example, in a base area of a furniture carcass.

To connect the drive unit with connecting cables corresponding plugs or plug contacts can be provided. Advantageously, a mounting rail with a current collection rail for the electrification of the drive unit or the plurality of drive units are mounted on a piece of furniture, for example on a furniture back wall. Particularly preferably, the at least one or in particular a plurality of drive units are displaceably mounted on the mounting rail and can be fixed at various corresponding points.

By a receiving contour, which in particular on the respective cooperating with the receiving contour end portion of the arm is tuned, a secure coupling or end coupling of the end portion of the arm with the receiving contour and thus can be realized with the moving furniture part. It is particularly advantageous that with the coupling not only a simple ejection movement of the furniture part reliably with the arm is possible, but this furniture part can move with the inventive arrangement rather in two opposite directions of movement. Advantageously, the furniture part to be moved can also be safely retracted, especially at a relatively higher weight or a larger loadings of the furniture part to be recovered.

Advantageously, a snap mechanism is relatively robust and also inexpensive set up. Depending on the shape, size, material properties of the receiving contour or of the end section of the arm, it may be established which force has to be overcome for snapping in or out.

It is also preferred that the abutment means comprise a guide arrangement for guiding the movement of the arm in the coupling state. In general, when pivoting the arm, when it is pivoted about a positionally fixed axis, whose end portion is moved to the respective furniture part at a contact area along. To guide this movement safely, a corresponding guide arrangement is advantageous. In this way, an exactly executed or uniform movement of the furniture part to be moved can be realized.

In particular, it is advantageous that the guide arrangement is designed such that the end portion of the arm during its pivoting movement to lead consistently. Upon contact of the arm with the furniture part to be moved can be achieved with the guide arrangement, the movement of the moving furniture part to run smoothly and continuously allow. In principle, however, a gradual or non-uniform movement of the first furniture part can be achieved with the guide arrangement, for example, first faster and then slower.

It is particularly advantageous that the guide arrangement comprises a guide rail on which a carriage coupled to the end section of the arm can be moved. A guide rail with a carriage movable thereon is comparatively space-saving to set up and can absorb relatively large forces, whereby the movement of the first furniture part by the pivoting movement of the arm is advantageously possible. It is advantageous if the carriage is secured to the guide rail and is movable in at least two opposite directions.

If the device according to the invention is used, for example, for moving a drawer relative to a furniture carcass, a geared motor can be operated, for example, by lightly pressing against the drawer front or by briefly pulling on a handle of the drawer or by actuating an opening sensor, for example via an opening sensor bar set and the swivel arm eg be turned outward from a pivoted position. Depending on the length of the arm, the drawer can possibly be pushed out of the furniture carcass a little bit beyond the coupling device or the sliding or guide rail. The further opening can be done for example by hand.

The same principle can also be used for the last part of the closing movement of the drawer by means of the pivotable arm. For example, by pushing the open drawer by hand to the contact, for example, the drawer rear wall with the swing arm located in the pivoted position or when touching the Drawer with a contact or a sensor of the driven closing operation initiated. In this case, the pivoted swivel arm is brought into the coupling state with the drawer and then swung back over the drive unit to its original position, wherein the drawer is moved in its closed position.

To control or control the movement of the arm, for example, a digital control can be provided, with which a number of different control steps are possible. In principle, different safety precautions can be set up, in particular during the closing process. For example, can be initiated via an electronic monitoring of the current for the drive unit or by detecting a current increase or increased energy shortly before a closed position of the drawer over a normal value corresponding security steps. For example, then the drive unit can be switched off immediately. The electronic monitoring is used in particular to provide an anti-jamming or injury protection for a user of the drawer in their driven movement, for example, so that bruises and injuries of the hand or fingers can be avoided. The example of a drawer can also be transferred to other movable furniture parts, e.g. for doors, flaps or panel elements.

Furthermore, it is advantageous that the abutment means comprise a mechanically and / or electrically securable coupling device which operates between the arm and the furniture part which can be brought into contact with the arm. By appropriate mechanical or electrical safety coupling a particularly reliable coupling between the arm and the relevant furniture part can be achieved. This further increases the reliability and functionality of the device for Moving the considered furniture part.

Another essential aspect of the invention is that a spindle rotatably driven via the drive unit is provided for pivoting the arm. A rotary spindle can be used comparatively space-saving. In addition, relatively high forces can be transmitted from the drive unit to the pivotable arm via the rotary spindle, which is for example rotatably mounted between the drive unit and a bearing. A rotary spindle is available in particular as a standard component in different dimensions or materials.

Particularly preferably, the spindle is designed as a threaded spindle, along which a can be coupled to the arm carriage by the rotational movement of the threaded spindle is movable. In such an arrangement, comparatively high forces can be transmitted to the arm to be pivoted. In this case, an automatic backup or an inhibiting mechanism for the pivoting of the arm can be realized via the carriage. The threaded spindle can have different external threads, which can interact in particular with a correspondingly suitably designed internal thread on the carriage. For the movement of the threaded spindle, for example, the drive unit can be designed as an electric, hydraulic or pneumatic motor.

Another important aspect of the invention is to be seen in that there is a flexible drive means for pivoting the arm driven via the drive unit movable. As a flexible drive member is for example a particular rotating rope or cord element, a drive belt or a drive chain into consideration. For example, a flexible drive member in a simple manner by a drive drivable by the drive unit Drive wheel to be moved, which is guided circumferentially about a spaced-apart wheel and the drive member allows a reciprocating motion of a device which can be brought into connection with the drive member. A movable flexible drive member is relatively robust and can be relatively heavily loaded on train.

Preferably, the drive member is configured to move by its driven movement coupled to the arm carriage. In this case, the movable carriage can be guided defined by its own guide unit or moved by means of the drive member. This arrangement is overall very reliable and simple.

In a further preferred embodiment of the subject invention, the carriage is arranged transversely to the direction of movement of the first furniture part. In this way, the carriage can be arranged, for example, in a region between the first and the second furniture part, which can be comparatively narrow or remote from an operating side and, if necessary, for structural reasons anyway, and thus no or almost no additional installation space for the carriage or the drive member is needed.

For example, along a rear wall of a furniture carcass, a drive unit with a flexible drive element, a carriage driving it for pivoting the arm and the arm itself can be set up in the intermediate area to the rear of a furniture drawer to be moved.

Advantageously, the carriage is connected via a connecting element with a displaceably arranged on the arm sliding piece. The carriage can for example be moved back and forth parallel to the longitudinal direction of the drive member, wherein attached to the carriage a projecting to this at a fixed angle lever is that articulates on a sliding piece attacks. When the carriage is moved back and forth with the lever, the sliding piece is also displaced along the arm, wherein the pivoting movement is imposed on the arm, for example by a maximum of approximately 70 to approximately 90 degrees.

Another significant aspect of the invention is that the drive unit comprises an electric motor having a stator with solenoids and a rotor cooperating with the stator, on which the arm is formed. This arrangement is particularly space-saving or compact set up and allows the transmission of relatively high driving forces on the pivoting arm. This can also save otherwise necessary transmission elements. In particular, no or almost no mechanical components for transmitting the driving force for the pivoting of the arm are necessary. In principle, the swivel arm can thus be fixedly connected to a rotor of the electric motor, which is designed as an inner rotor about an outer stator with a plurality of magnetic coils.

Another central aspect of the invention resides in the fact that damping means are provided, with which a movement damping between the arm and the furniture part in contact with the arm is possible when the arm is in contact with a furniture part. In order to avoid particular load peaks or damage to the pivoting arm or to the relevant furniture parts and unwanted noise, the movement damping by damping means is advantageous. The damping means can be designed in many different ways, in particular in furniture known damping devices include, for example, fluid damper, spring damper or combined damper or formed by the material properties of a damping member damper, for example made of an elastomer.

An additional important aspect of the invention is to be seen in that compensation means are provided with which an angular offset between a gear part of the drive unit and the arm can be compensated during the pivoting movement of the arm. In order to avoid, for example, damage due to a short-term or slight overrun of the drive unit in the case of a pivotable arm located in a mechanical abutment or end position, corresponding compensation means are advantageous. For example, an elastically resilient compensating element can be provided, which absorbs or compensates for the driving effect of the drive unit on the arm when the arm is already in an end position. This almost eliminates damage to the engine, the gearbox, the pivoting arm or other components. As compensating means, it is possible, for example, to use an elongated and flexible component acting as a rotation angle compensation, e.g. a spring steel wire are provided. With the compensating means an exact end position of the arm can be ensured, with a different tracking of the gear motor is compensated for after the turn-off, which can occur in speed control of the gear motor depending on the predetermined pivoting speed of the arm.

It is further proposed that the arm is designed such that the first furniture part is driven to move over a partial distance of a movement path that can be traveled in one direction in standard operation. As a rule, the pivotable arm serves to move the first furniture part driven only over a partial stretch of the entire possible movement path. This can be the case, for example, in the case of drawers to be moved for a first section from the closed to a partially open position, and then subsequently to open the drawer by hand further. For this purpose, the arm serves as a sort of ejector or as an initialization device.

Preferably, the arm is designed such that the pivoting of the arm, the first furniture part is driven from a closed position to a partially open position. This increases in particular the ease of use for the first furniture part to be moved, for example for a drawer.

Preferably, the arm is designed to be adjustable in its length, in particular for setting the partial section of the first furniture part, via which the first furniture part driven by the pivoting of the arm is movable. Thus, the ejection or, if applicable, the pull-in section of the first furniture part can be determined or changed in a variable manner. This can be realized particularly easily by adjusting the arm length of the pivoting arm.

In a preferred embodiment of this device according to the invention, the arm is designed to be driven by pivoting the first furniture part from a partially open position to the closed position to move. In this way, the device according to the invention can be used without additional means also for a closing movement of the first furniture part, in particular if the furniture part to be moved is difficult to move by hand, e.g. for large and heavily loaded drawers and pull-outs. Thus, the ease of use for a user can be further increased. In addition, a precisely adjustable or defined pretend closed position of the first furniture part are made possible by the pivotable arm.

In a particularly advantageous embodiment of the invention, a control unit for controlling the drive unit and a switching unit are provided, with which a manual triggering a pivoting movement is possible, so that the Arm driven from a basic position reaches a pivoting position. With a control unit, the drive unit can be safely operated and used for a variety of different operating modes. With the switching unit, an operator can trigger the pivoting movement individually or as required, in particular, without acting directly on the furniture part to be moved.

Preferably, the control unit is designed to bring the arm driven after pivoting from the basic position in the pivoting position in a basic position. Depending on the application, it may be advantageous that after the ejection movement of the first furniture part by the arm this returns to its normal position. In this case, the arm is only used for an ejection movement. The closing operation can then take place in a known manner, for example, thus a drawer can be closed conventionally with an automatic retraction with or without damping device.

However, the reverse case is also conceivable, according to which the arm is used only for pulling in or closing the first furniture part, if it is used for this purpose, e.g. is releasably coupled to the arm and the extraction or opening of the first furniture part without drive support, e.g. done manually. This means that the arm is e.g. is controlled by the control unit, that after the extraction or opening of the first furniture part of the arm is brought into a pivoting movement, from which then the coupling with the first furniture part and its subsequent retraction or closing can be done.

Particularly preferably, the arm is configured to allow by a pivoting movement from the basic position by up to about 90 degrees of degrees the driven movement of the first furniture part. This allows almost ideal mechanical leverage for the driven movement of the first Realize furniture part. In addition, the maximum swept by the arm pivot radius of the arm is used for the movement of the first furniture part.

It is preferred over this, that the attachment means comprises a rotatably mounted on the arm roller and / or ball. This can be a particularly gentle but reliable contact between the arm and the arm can be brought into contact with the furniture part. Preferably, the ball or the roller is rotatably mounted, whereby in their investment state this can roll relative to the corresponding furniture part at this.

The invention also relates to a piece of furniture having a first furniture part, which is movable relative to a second furniture part, in particular with a drawer driven by a drive unit, wherein a guide unit for guiding the first furniture part is provided on the second furniture part. The furniture is characterized in that one of the above devices is provided. In this way, the aforementioned advantages for the relevant furniture part can be realized.

A preferred furniture according to the invention is characterized in that a plurality of first furniture parts are provided, which are each driven by one of the aforementioned devices movable. As a rule, furniture with several movable first furniture parts or drawers, for example, used in the kitchen area. Advantageously, all the first furniture parts can be driven driven as explained.

Finally, it is proposed that a plurality of drive units are provided which are interconnected via a rail and / or a cable line. Thus, for example, via a higher-level or central control or control unit, a plurality of Drive units are controlled. Advantageously, the drive units are interconnected. According to the invention, unwanted movement, opening or closing states of a plurality of furniture parts to be moved can be avoided, in particular if a correspondingly intelligent control or regulation unit coordinates the movement of the individual furniture parts with one another.

figure description

Figur 1

eine Draufsicht auf ein teilweise freigeschnittenes Möbel mit Schublade und Ausstoßvorrichtung bei geschlossener Schublade,

Figur 2

das Möbel gemäß Figur 1 bei teilweise ausgefahrener Schublade,

Figur 3

eine Detailansicht der Ausstoßvorrichtung aus Figur 2,

Figur 4

eine freigeschnittene Seitenansicht des Möbels gemäß Figur 1 und 2 ohne Seitenwand mit drei Schubladen im geschlossenen Zustand bzw. mit drei Ausstoßvorrichtungen,

Figur 5

eine Vorderansicht stark schematisiert auf das Möbel gemäß Figur 1 bis 4 mit Elektro- versorgung und unter Weglassung der Schubladen und einer Ausstoßvorrichtung,

Figur 6

eine alternative Anordnung zur Anordnung zweier Ausstoßvorrichtungen mit Anbringleiste und elektrischer Versorgung,

Figur 7 und Figur 8

eine alternative Ausstoßvorrichtung mit einem Verschwenkarm in eingeschwenkter und in vollständig ausgeschwenkter Schwenkstellung,

Figur 9 und Figur 10

eine weitere alternative Ausstoßvorrichtung mit einem Verschwenkarm in eingeschwenkter und in vollständig ausgeschwenkter Schwenkstellung,

Figur 11

eine weitere alternative Ausführungsform einer Ausstoßvorrichtung in einer eingeschwenkten Stellung des Schwenkarms,

Figur 12

eine Seitenansicht der Anordnung gemäß Figur 11,

Figur 13

die Anordnung gemäß Figur 11 in vollständig ausgeschwenkter Schwenkstellung des Schwenkarms,

Figur 14

eine Anordnung gemäß Figur 1 mit einer weiteren alternativen Ausstoßvorrichtung,

Figur 15

die Anordnung gemäß Figur 14 mit teilweise ausgeschobener Schublade und vollständig verschwenktem Schwenkarm,

Figur 16

eine Detailansicht aus Figur 15 mit dem verschwenkten Schwenkarm,

Figur 17

eine alternative Ausgestaltung der Anordnung gemäß Figur 16,

Figur 18

eine Teilansicht von der Seite eines Möbels ohne Seitenwand mit einer Ausstoßvorrichtung und einer Schublade in geschlossener Stellung

Figur 19

ein weiteres Möbel in Teilansicht von oben ohne Deckplatte,

Figur 20

eine schematisierte Teilansicht eines erfindungsgemäßen Möbels mit Zusatzeinrichtungen,

Figur 21

eine Ausstoßvorrichtung ähnlich zur Ausstoßvorrichtung gemäß Figur 16 in zwei unterschiedlichen Verschwenkstellungen eines Arms in Anlage an einem mit einer Schublade verbundenen Gegenabschnitt,

Figur 22

einen Ausschnitt quer zur Ansicht der Anordnung gemäß Figur 21,

Figur 23

ein Detail im Ausschnitt aus Figur 21,

Figur 24

ein Detail der Anordnung gemäß Figur 21, wobei der Schwenkarm sich nicht im Kontakt mit einem mit einer Schublade verbundenen Gegenabschnitts,

Figur 25 bis Figur 28

eine weitere alternative Ausführungsform einer erfindungsgemäßen Ausstoßvorrichtung gemäß der Ansichten der Figuren 21 bis 24,

Figur 29

eine weitere alternative Ausstoßvorrichtung im Ausschnitt mit einem Schwenkarm in vollständig ausgeschwenkter Stellung,

Figur 30

eine Seitenansicht teilweise im Schnitt durch die Anordnung gemäß Figur 29,

Figur 31

die Anordnung gemäß Figur 29 bei nachlaufender Antriebseinheit und

Figur 32

die Anordnung gemäß Figur 29 bis 31 mit zurückgeschwenktem Schwenkarm.

With reference to the drawing figures, the invention will be explained in more detail with further details and advantages. In detail shows:

FIG. 1

a plan view of a partially cut open furniture with drawer and ejector with the drawer closed,

FIG. 2

according to the furniture FIG. 1 with partially extended drawer,

FIG. 3

a detailed view of the ejection device FIG. 2 .

FIG. 4

a cutaway side view of the furniture according to FIGS. 1 and 2 without side wall with three drawers closed or with three ejectors,

FIG. 5

a front view highly schematized on the furniture according to Figure 1 to 4 with electrical supply and omitting the drawers and an ejection device,

FIG. 6

an alternative arrangement for the arrangement of two ejection devices with attachment strip and electrical supply,

FIG. 7 and FIG. 8

an alternative ejection device with a pivoting arm in pivoted and fully swung out pivot position,

FIG. 9 and FIG. 10

a further alternative ejection device with a pivoting arm in pivoted and fully swung out pivot position,

FIG. 11

a further alternative embodiment of an ejection device in a pivoted position of the pivot arm,

FIG. 12

a side view of the arrangement according to FIG. 11 .

FIG. 13

the arrangement according to FIG. 11 in fully pivoted pivot position of the swing arm,

FIG. 14

an arrangement according to FIG. 1 with another alternative ejection device,

FIG. 15

the arrangement according to FIG. 14 with partially ejected drawer and completely swiveled swivel arm,

FIG. 16

a detailed view FIG. 15 with the pivoted swivel arm,

FIG. 17

an alternative embodiment of the arrangement according to FIG. 16 .

FIG. 18

a partial view of the side of a piece of furniture without side wall with a discharge device and a drawer in the closed position

FIG. 19

another piece of furniture from above without cover plate,

FIG. 20

a schematic partial view of a piece of furniture according to the invention with additional equipment,

FIG. 21

an ejector similar to the ejector according to FIG. 16 in two different pivoting positions of an arm in contact with a counterpart connected to a drawer,

FIG. 22

a section transverse to the view of the arrangement according to FIG. 21 .

FIG. 23

a detail in the neckline FIG. 21 .

FIG. 24

a detail of the arrangement according to FIG. 21 wherein the pivoting arm is not in contact with a counterpart portion connected to a drawer,

FIG. 25 to FIG. 28

a further alternative embodiment of an ejection device according to the invention according to the views of FIGS. 21 to 24 .

FIG. 29

a further alternative ejection device in the cutout with a swivel arm in the fully swung out position,

FIG. 30

a side view partially in section through the arrangement according to FIG. 29 .

FIG. 31

the arrangement according to FIG. 29 at trailing drive unit and

FIG. 32

the arrangement according to FIGS. 29 to 31 with swivel arm pivoted back.

In the description of the figures, the same reference numerals are sometimes used for corresponding components.

FIG. 1 shows a view from above of a schematically illustrated piece of furniture with a furniture body 1, in which a movably mounted drawer 2 is arranged movable on guide units 3 not shown with guide rails. In FIG. 1 For example, a worktop or cover plate on the top of the furniture body 1 is not shown. On an inner side of a rear wall 1a of the furniture body 1, an ejection device 4 is positioned.

The ejection device 4, in particular FIG. 3 shows in closer, comprises a pivot arm 5, which is pivotable about a pivot axis S via a geared motor 6. At the pivot axis S opposite end of the pivot arm 5, a pressure roller 7 is mounted rotatably mounted. Furthermore, a trip contact 8 is provided, which belongs to a trip unit 9, which is attached to an angle 10. The trip contact 8 is adjustable in particular, for example, with regard to a tripping force, which is necessary to trigger the trip contact 8 and thus a signal to the geared motor 6 on to lead. Instead of the tripping contact 8, another device is conceivable, for example a triggering sensor. The sensor can be arranged externally or, for example, integrated in the trip unit 9.

In the in FIG. 1 The arrangement shown is the drawer 2 in its closed position in the furniture body 1, that is, in particular in its retracted position. In this case, the pivot arm 5 is in an almost parallel to the inside of the rear wall 1a alignment. The ejection device 4 may be arranged on the rear wall 1a at the same height, below or above the drawer 2. The power supply of the drive unit or the geared motor 6 is advantageously carried out with low voltage, for example, 12 volts or 24 volts. A transformer necessary for this purpose can advantageously be accommodated in the base area of the illustrated furniture body 1.

Are in the furniture body 1 further housed drawers, not shown, each having an ejection device, the respective geared motors or drive units each to a preceding drive unit by means of e.g. a plug can be connected. Advantageously, for this purpose a mounting rail can be mounted with power take-off rail for the drive units on the furniture back wall 1a, wherein the drive units can be slidably fastened to the affected areas.

From the closed position of the drawer 2 according to FIG. 1 can be activated by an operator, for example by lightly pressing on a drawer front 2a or by pulling on the drawer front 2a a trigger sensor or the release contact 8, which sets the geared motor 6 in operation. Then the swivel arm 5 with its pressure roller 7 as far forward in the direction of Drawer rear wall 2b is pivoted until the pressure roller 7 presses on the back of the drawer rear wall 2b and comes into abutment and the drawer 2 ejects depending on the length of the pivot arm 5 forward according to arrow P1. At maximum swing radius of the swing arm 5 according to FIG. 2 For example, the swivel arm is out of its initial position FIG. 1 pivoted about 90 degrees, wherein the pivot arm 5 is moved along a line L with respect to its front end. In FIG. 2 the drawer 2 is shown in its maximum ejected by the ejection device 4 position. In this position, the drawer 2, for example, be further raised by a person by hand or can be operated in the front of the drawer 2 from above. The pivot arm 5 is after reaching its swung-out position according to FIG. 2 then again in its starting position according to FIG. 1 moved back. The drawer 2 can be closed conventionally or in a manner known per se, for example with an automatic retraction with or without damping device.

FIG. 4 shows the furniture body 1, omitting a side part with the rear wall 1a under a cover plate 1b. In the furniture body 1 2 further arranged underneath drawers 11 and 12 are provided by way of example next to the drawer, which are each in their closed or retracted position in the furniture body 1. Each drawer 2, 11 and 12 is driven by a discharge device 4, 13 and 14 over a partial distance to the front extendable. The ejection device 4 is positioned on the rear wall 1a behind the drawer rear wall 2b, the further ejectors 13 and 14 being positioned on the rear wall 1a below the associated drawer 11 and 12, respectively. A swivel arm with pressure roller of the ejector 13 comes with the drawer 11 so in Appendix, as is the case with the swivel arm 5 with pressure roller 7 of the ejector 4 to the drawer 2. The ejector 14, however comes with your swivel arm with pressure roller on an angle element 15 in Appendix, which is attached to a drawer bottom 12a of the drawer 12.

In FIG. 5 is schematized the furniture body 1 according to FIG. 4 with the omission of the drawers 2 to 12 shown, wherein on the rear wall 1a, the ejection devices 4 and 13 are shown and the ejector 14 is not shown for clarity. The ejection device 4 and 13 are electrically conductively connected to each other, for example via a line 16 with a plug connection. The power supply of the ejection devices 4 and 13 and corresponding ejection device 14 (not shown in FIG FIG. 5 ) via a further line 17 with plug contact to a transformer 18, which reduces a mains voltage of, for example, 220 volts, which is supplied via a line 19 with a plug contact, for example, 24 volts.

An alternative arrangement of the ejectors 4 and 13 with power supply is in FIG. 6 shown. The two ejection devices 4, 13 are according to FIG. 6 attached to a mounting rail 20 electrically contacting and according to the double arrows P2 and P3 each fixed to the mounting rail in different positions. The mounting rail 20 is connected via a line 17, a transformer 18 and a further line 19 according to the power supply according to FIG. 5 supplied with an operating voltage of eg 24 volts. The ejector 4 and the ejector 13 in FIG. 6 have for electrical contacting with a current-carrying portion 20a of the mounting rail 20 via a contact element 21 and 22nd

In FIGS. 7 and 8 is a possible alternative embodiment of an ejection device with drive unit for ejecting movable furniture parts such as a drawer shown. The Ejector 21 according to FIGS. 7 and 8 comprises an electric, hydraulic or pneumatic motor 22, which is arranged for the rotary drive of a threaded spindle 23, for example on a rear wall 1a of a furniture body. The externally threaded threaded spindle 23 is aligned almost parallel to the rear wall 1 a and rotatably supported at its front end remote from the motor 22 via a bearing element 24. On the motor 22 is also pivotally mounted about a pivot bearing 25, a pivot arm 5, which has a pressure roller 7 at its front end. Instead of the pressure roller 7 and a slider is conceivable. On or along the threaded spindle 23, a sliding nut 26 is movably mounted via an external thread of the threaded spindle 23 matching internal thread. By rotation of the threaded spindle 23, the rotationally fixed sliding nut 26 is reciprocated according to the direction of rotation of the threaded spindle 23 in accordance with the double arrow P4.

In FIG. 7 the displacement nut 26 is positioned in its nearly fully advanced position on the threaded spindle 23. In this position, the pivot arm 5 is in its pivoted position. On the sliding nut 26 is a fixed thereto positioned boom 27 is mounted, which is hinged at its front end hinged to a sliding piece 28, for example by a pin on the sliding piece 28 engages in a matching round hole of the boom 27. The sliding piece 28 is arranged on the pivot arm 5 along its length movable or slidably guided thereto. For example, starting from the position according to FIG. 7 the threaded spindle 23 rotatably driven, so that the sliding nut 26 is moved in the direction of the motor 22, the sliding piece 28 is also moved along the pivot arm 5 so that it is swung out, for example, in a maximum swinging position according to FIG. 8 , in which the sliding nut 26 at the threaded spindle 23 is positioned at the drive-side end of the threaded spindle 23. The sliding piece 28 is positioned over the boom 7 close to the pivot bearing 25 on the arm 5 so that it is, for example, in a 75 degree position with respect to the rear wall 1a. But there are also smaller or larger maximum Ausschwenk-angle positions or minimum Einschwenk-angle positions as shown in accordance with FIGS. 7 and 8 can be set up with the arrangement shown, for example with a longer threaded spindle 23.

When pivoting the pressure roller 7 comes into abutment, for example, with a rear wall of a drawer, not shown, which can be ejected by the pivoting movement of the pivot arm 5 forward.

One to FIGS. 7 and 8 alternative embodiment of an ejection device shows FIG. 9 and FIG. 10 , Here, a geared motor 29 is provided, which is attached via a receptacle 30 on a rear wall 1a of a furniture body. At the receptacle 30 is according to the embodiment according to FIG. 7, 8 a pivoting arm 5 is pivotally received, which via a slide carriage 26, a boom 27 and a sliding piece 28 is driven in a pivotable manner. The sliding carriage 26 is movable, for example, along a slide 31 according to the double arrow P5 slide along or is reciprocable. The slide rail 31 is positioned substantially parallel to the rear wall 1a. For sliding movement of the sliding carriage 26, this is connected for example via a terminal 32 with a particular circulating cable 33. The cable 33 is guided here around a drive roller 34 which is rotatably driven by the geared motor 29 and around a deflection roller 35 and lies slightly tensioned on the rollers 34, 35. About the direction of rotation of the drive roller 34 and the direction of rotation of the cable 33, the displacement slide 26 according to arrow P5 reciprocated be, with the swing arm 5 from its example in FIG. 9 shown pivoted back position in a maximum pivoted position according to FIG. 10 can be brought. In the pivoting movement can thus be moved via a pressure roller 7, a corresponding furniture part, such as a drawer are ejected.

For attachment of the front end of the slide rail 31 and for rotatably receiving the guide roller 35, for example, a counter-receptacle 36 is provided on the rear wall 1a.

A particularly advantageous alternative embodiment of an ejection device shows FIG. 11 to FIG. 13 , In this case, a swivel arm 5 with pressure roller 7 is moved by means of a magnetic coil arrangement 37 pivotable about a pivot axis S. This solution is particularly compact and inexpensive. In particular, a transmission unit can thus be saved. The Magnetspulenanordndung 37 includes a stator 38 with magnetic coils 39, around which a rotor 40 is arranged rotatably with permanent magnets 41. The rotor 40 is fixedly connected to the pivot arm 5, so that when the magnet coil 39 is energized, the rotor 40 and the pivot arm 5 fixedly connected thereto can be pivoted. FIG. 11 shows a swung back position of the swing arm 5 and FIG. 13 a completely swung out position of the swing arm. 5

The magnet coil arrangement 37 can, for example, be attached to a rear wall 1a of a furniture carcass, for example via a mounting bracket 42, in accordance with the exemplary embodiments shown above.

Another inventive arrangement with an ejector 43 shows FIG. 14 to FIG. 16 or an alternative to it FIG. 17. FIGS. 14 and 15 essentially corresponds to a view of the arrangement according to FIGS. 1 and 2 At a furniture rear wall 1a behind or below or above the drawer 2, a drive element with a geared motor 6 and a pivot arm 5 Advantageously, with a sprung or dampened dome head 44 is mounted. On the swivel arm 5, a closing contact 45 or sensor is also provided. On a drawer rear wall 2b, a slide rail 46 is mounted with a coupling spring 47 for the movable recording of the dome head 44.

FIG. 16 shows the pivot arm 5 in abutment with the drawer rear wall 2b with fully swiveled swing arm. 5 FIG. 17 shows an alternative embodiment of an ejection device in a position according to FIG. 16 , wherein on the pivot arm 5, a damping device 48, for example, with a fluid damper or linear damper with a fixed cylinder part and linearly movable piston with piston rod therein.

When driven pivoting of the swing arm 5 from the in FIG. 14 shown position or when the drawer 2 is closed, the dome head 44 is caught in the dome spring 47, so that for the pivoting movement of the pivot arm 5, the dome spring 47 is guided along the slide 46 guided on this and the drawer 2 in the position according to FIG. 15 arrives.

Opening sensors can be fitted laterally between a drawer front 2a and the furniture body 1 (see also FIG FIGS. 18 to 20 ) or can be in a worktop or in a wall unit front, top or bottom in this opening sensor bar (not shown) embedded or mounted, via which a pulse to the drawer opening by means of cable or wirelessly via radio, sound, piezoelectric element and the like can be given. The Control of the geared motor 6 can advantageously be done digitally, the drawers can be individually selected by means of a setting display and, for example, each of the ejection speed can be adjusted accordingly, for example, less or greater, or depending on a usually occurring loading of the drawer.

It is particularly preferred if the intake speed or closing speed can be set shortly before the closed position. For example, effects can be achieved as in the case of a damping device, but with a reliable or always nearly constant closing behavior for the drawer movement. In principle, for example, for childproofing a pulse input for selected or drawers with potential hazard can be changed, e.g. by a pulse train short - long - short or the like.

By gently pressing, for example, on the drawer front 2a or by pulling on a handle (see FIG. 19 ) or pressing the opening sensor bar, the gear motor 6 is put into operation and the pivot arm 5 is rotated outwards, the drawer 2 is pushed out via the dome spring 47 and the slide 46 depending on Schwenkarmlänge from the furniture body 1. The further opening can be done for example by hand.

By pushing manually to the rotated swivel arm, the closing process is initiated by contact via a contact or a sensor. This means that the pivot arm 5 remains in its swung-out position after the ejection movement and does not swing back immediately. By example, digital control further numerous or advantageous effects for the desired operation of the movable furniture part or the drawer can be achieved.

As in particular from FIG. 17 As can be seen, a certain variability of the swivel arm length of the swivel arm 5 can be realized by means of a telescope arrangement. For example, in one central bore 49 of the pivoting arm 5, one end section 50 of the pivoting arm 5 can be movably received. The end portion 50 engages in the bore 49, wherein a coil spring 51 is biased frontally outside of the bore 49 and a shoulder 52 at the end portion 50 therebetween.

FIG. 18 shows an upper portion of a furniture body 1 with a drawer 2, wherein on a cover plate 1b of the furniture body in the front area or, operatively operated by a person opening sensor strips 53, 54 and 55 are shown, which can be combined or provided individually.

FIG. 19 shows further alternative arrangements of sensors or sensor strips with an opening sensor 56 and 57 in the furniture body, for example in a side wall 1c and an opening sensor 58 in a handle 59 of the drawer. 2

In FIG. 20 is a highly schematic arrangement of a piece of furniture with a furniture body 1, in the cover plate 1b an opening sensor bar 59a is integrated above, which is connected via a sensor line 60 to a transformer and control unit 61. Via a further line 62, the transformer and control unit 61 is supplied, for example, with a voltage of 220 volts. Via lines 63, 64 drive motors 65, 66 are connected for corresponding ejection devices with the transformer and control unit 61. To supply a further drive motor 67, this is connected via a line 68, for example with the drive motor 66.

For adjustment, programming, control or maintenance and the like, a setting display 69 is also connected to the transformer and control unit 61.

Another arrangement according to the FIGS. 14 to 17 Similar embodiments of a coupling device show the FIGS. 21 to 24 , A swivel arm 5 pivotable about an axis of rotation S has a coupling head 44, which can be brought into abutment in an annular spring 70 at least temporarily. The spring 70 is fixed to a dome carriage 71 which is movable along a slide rail 72. The slide rail 72 is attached, for example, to a drawer rear wall 2b. On the pivot arm 5 of the circular dome head 44 is attached with conical side edges 44a. The sliding carriage 72 slidably mounted on the dome carriage 71 has a circular receiving ring 73, in which the annular spring 70 is located. The spring 70 has the task of fixing the ejected or pushed to the pivot arm 5 drawer something. After enclosing the coupling head 44 by the annular spring 70, it begins to rotate triggered by a contact or sensor of the pivot arm 5, wherein the entire pivoting movement in accordance with FIG. 21 is indicated by the dashed line L2, along which the coupling head 44 moves. In the course of the pivoting movement of the coupling head 44 is anchored more stable in the annular spring 70 and can, for example, draw the drawer.

FIG. 23 shows in detail the section of the front end of the pivot arm 5 with recorded in the spring 70 tip head 44th

FIG. 24 shows the coupling head 44 in the state not coupled in the spring 70 on the dome carriage 71. This is the case, for example, when the (not shown) Drawer with the dome carriage 71 is moved in the ejected position forward according to arrow P5.

A further alternative embodiment of the subject invention or the ejection device to the arrangement according to FIG. 21 to FIG. 24 show the FIGS. 25 to 28 , This is characterized by a coupling device with a coupling pin or coupling pin 74 on a coupling carriage 75. On a pivot arm 5, a catch 76 is attached to a rotatably mounted locking rocker 77, which can be electrically locked during the pivoting operation in particular. On a drawer rear wall 2b a slide rail 72 is fixed, on which the dome carriage 75 is slidably mounted. On the angled dome carriage 75 of the coupling pin 74 is arranged. If the opened drawer is pushed in, for example, and the dome carriage 75 reaches the front end of the swung-out arm 5, the dome bolt 74 slides into the catch fork 76 and pivots the safety rocker 77, which is then electrically locked by an electrical lock 78 (see FIG FIG. 26 ), whereupon the swivel arm 5 starts to swing in and pulls in the drawer.

FIG. 28 shows the front portion of the unlocked and separated from the dome carriage 75 pivot arm 5 when the drawer is moved forward, for example, according to the arrow P6 with the dome carriage 75 disposed thereon.

In the FIGS. 29 to 32 an ejection device according to the invention is shown with a pivot arm 5 with a rotation angle compensation. In the case of an analog or digital speed control of geared motors, the corresponding geared motor runs differently depending on the input of different swivel arm speeds, after the switch-off pulse, whereby no exact adjustment of the Swivel arm or an end position of the swing arm is possible. For a closed position, for example, drawers, however, it is necessary to ensure an exact adjustment. To achieve this, a rotation angle compensation is proposed according to the invention.

For this purpose, an angled or bent spring steel wire 79 is fixedly connected to the swivel arm 5. The pivot arm 5 is fixedly connected in the region of the rotation axis S to a pivot arm hub 81 rotatably mounted relative to a drive hub 80, wherein the arm 5 is rotatably driven about the pivot axis S via a geared motor 82. The drive hub 80, which is screwed onto a transmission axis A, is connected to the angled end of the spring steel wire 79. The movement of the drive hub 80 on the arm 5 thus takes place via the spring steel wire 79. On the Schwenkarmnabe 80 also two oppositely positioned limit stops 83, 84 are provided, which can abut depending on the pivotal position of the arm 5 and the drive hub 80 of the spring steel wire 79 , In addition, fixed stops 85, 86 are formed for limiting the pivoting movement of the pivoting arm 5. Thus, when the pivot arm 5 has reached the exact position on one of the fixed stops 85, 86, the transmission axis A.bzw. the drive hub 80 turn a little further, the pivot arm 5 can remain in its fixed end position and the further rotation of the drive hub 80 is compensated by a self-returning relative movement of the drive hub 80 relative to the arm 5. The further rotation of the drive hub 80 is made possible by the spring steel wire 79 subjected to bending. Such a situation is for example in FIG. 31 illustrated, wherein the pivot arm 5 from the according FIG. 29 reached end position on the fixed stop 85 by a piecewise advancing or further rotation of the drive hub 80 to here, for example, about 25 degrees in the in FIG. 31 shown position reached. FIG. 32 shows the pivot arm 5 in the reached on the fixed stop 86 Endschwenkstellung without a tracking position of the drive hub 80th

LIST OF REFERENCE NUMBERS

1

furniture body

1a

rear wall

1b

cover plate

1c

Side wall

2

drawer

2a

drawer front

2 B

Drawer rear wall

3

Guide unit

4

ejector

5

swivel arm

6

gearmotor

7

capstan

8th

release contact

9

trip unit

10

angle

11

drawer

12

drawer

12a

drawer base

13

ejector

14

ejector

15

angle element

16

management

17

management

18

transformer

19

management

20

mounting rail

20a

Area

21

ejector

22

engine

23

screw

24

bearing element

25

pivot bearing

26

translational nut

27

boom

28

sliding piece

29

gearmotor

30

admission

31

slide

32

clamp

33

rope

34

capstan

35

idler pulley

36

counter receptacle

37

Solenoid assembly

38

stator

39

solenoid

40

rotor

41

permanent magnet

42

mounting brackets

43

ejector

44

dome head

44a

side flanks

45

make contact

46

slide

47

dome spring

48

damping device

49

drilling

50

end

51

spiral spring

52

paragraph

53

Opening sensor bar

54

Opening sensor bar

55

Opening sensor bar

56

opening sensor

57

opening sensor

58

opening sensor

59

Handle

59a

Opening sensor bar

60

sensor line

61

Transformer and control unit

62

management

63

management

64

management

65

drive motor

66

drive motor

67

drive motor

68

management

69

display

70

feather

71

dome slides

72

slide

73

receiving ring

74

knuckle

75

dome slides

76

catch fork

77

holding rocker

78

lock

79

Spring Wire

80

drive hub

81

Schwenkarmnabe

82

gearmotor

83

limiting stop

84

limiting stop

85

fixed stop

86

fixed stop

Claims (15)

1. Device for moving furniture parts (1, 2) that can be moved towards one another, with a drive unit (6, 22, 29, 37, 65-67, 82) by means of which a first furniture part (2) can be moved driven relative to a second furniture part (1), wherein an arm (5) formed between the furniture parts (1, 2) and pivotable by the drive unit is designed such that by pivoting the arm (5) the driving movement of the first furniture part (2) is performed, whereby arranging means (7, 44, 47, 70, 74, 77) are provided for at least temporarily coupling an end section of the arm (5) with one of the furniture parts (1) during the pivoting movement of the arm (5), characterised in that the arranging means have a mounting contour (47, 70) into which the end section (44) of the arm (5) can snap on pivoting.
2. Device according to claim 1, characterised in that the arranging means comprises a guiding arrangement (46, 72, 75) for guiding the movement of the arm (5) in the coupled state.
3. Device according to one of the preceding claims, characterised in that the guiding arrangement is designed to guide the end section (44) of the arm (5) during its pivoting movement, in particular such that the guiding arrangement comprises a guiding rail (46, 72) on which a slide (71, 75) coupled with the end section (44) of the arm (5) can be moved.
4. Device according to one of the preceding claims, characterised in that the arranging means comprises a mechanically and/or electrically securable coupling device (74, 76, 77, 78), which operates between the arm (5) and the furniture part (2b) that can be moved into engagement with the arm.
5. Device according to one of the preceding claims, characterised in that a spindle (23) rotary driven by the drive unit (22) is provided for pivoting the arm (5), in particular in that the spindle is designed as a threaded spindle (23) along which a slide (26) connectable with the arm (5) can be moved by the rotational movement of the threaded spindle (23).
6. Device according to one of the preceding claims, characterised in that a flexible driving member (33) driven by the drive unit is provided for pivoting the arm (5).
7. Device according to claim 6, characterised in that the driving member (33) is designed to move a slide (26) connectable to the arm (5) by its driven movement.
8. Device according to any one of the preceding claims 3, 5 and 7, characterised in that the slide (26) is arranged perpendicular to the movement direction of the first furniture part.
9. Device according to one of the preceding claims 3, 5, 7 and 8, characterised in that the slide (26) is connected by a connecting element (27) to a slide piece (28) arranged displaceably on the arm (5).
10. Device according to one of the preceding claims, characterised in that damping means (48, 51) are provided, by means of which with an arm (5) located in engagement on a furniture part (2) movement damping is possible between the arm (5) and the furniture part (2) in engagement with the arm (5).
11. Device according to one of the preceding claims, characterised in that compensating means (79) are provided, by means of which during the pivoting movement of the arm (5) angular misalignment can be compensated between a gear element (80) of the drive unit (82) and the arm (5).
12. Device according to one of the preceding claims, characterised in that the arm (5) is designed so that the first furniture part (2, 11, 12) can be moved driven over a section of a movement path coverable in standard operation in one direction, or in that the arm (5) is designed such that on pivoting the arm (5) the first furniture part (2, 11, 12) is moved out of a closed position into a partly opened position or in that the arm (5) is designed so as to drive by pivoting the first furniture part (2) out of a partly opened position into the closed position.
13. Device according to any one of the preceding claims, characterised in that a control unit (61) for controlling the drive unit (65, 66, 67) and a switching unit (59) are provided, by means of which a manual release of pivot movement is possible, so that the arm (5) is driven from a basic position into a pivot position.
14. Device according to any one of the preceding claims, characterised in that the arm (5) is designed such that by pivoting from the basic position by up to about 90 degrees the driven movement of the first furniture part (2, 11, 12) is made possible.
15. Piece of furniture with a first furniture part which can be moved relative to a second piece of furniture (1), in particular with a movable drawer (2, 11, 12) driven by a drive unit (6, 22, 29, 37, 65, 68, 67, 82), wherein a guiding unit (3) is provided for guiding the first furniture part (2, 11, 12) on the second furniture part (1), characterised in that a device is provided according to one of the preceding claims.

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