WO2008006616A2

WO2008006616A2 - Device for moving furniture parts that can be moved towards each other, and piece of furniture

Info

Publication number: WO2008006616A2
Application number: PCT/EP2007/006260
Authority: WO
Inventors: Günter GRABHER
Original assignee: Alfit Ag
Priority date: 2006-07-14
Filing date: 2007-07-13
Publication date: 2008-01-17
Also published as: DE502007005969D1; EP2040580A2; WO2008006616A3; EP2040580B1; ATE491368T1; DE202006011039U1

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

"Device for moving furniture parts and furniture that move relative to one another"

The invention relates to a device according to the preamble of claim 1 and a furniture according to claim 24.

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 is carried out by a driven pivoting movement of an arm, are already known. The international patent application WO 2006/017865 A1, for example, shows a carrier element for attachment in a furniture carcass, wherein an ejection device for ejecting a movable furniture part mounted in the furniture body can be attached to the carrier element. 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 solved by the preamble of claim 1 by the claims 1, 7, 9, 13, 14 and 15 or by the claim 24. 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 present. 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. 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 pivoting arm may be in individual cases also to the not moving second furniture part in particular ^'is firmly fixed or possibly displaceably arranged also to a certain extent. However, it is also conceivable that the arm is attached to the first or moving furniture part and - A -

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.

In an advantageous embodiment of the subject invention, the attachment means comprise a receiving contour, in which the end portion of the arm can snap. 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, for example by slight pressure against the drawer front or by a short pull on a handle of the drawer or by actuating an opening sensor, for example via a

Opening sensor bar, a geared motor put into operation and the pivotable arm, for. 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 which is hinged to a sliding piece; attacks. When Hinbzw. Approaching the carriage with the lever is also the sliding piece, moved along the arm, wherein the arm is forced to pivot, for example by a maximum of about 70 to about 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 compensation means, for example, acting as a rotation angle compensation elongated and flexible component, such as a spring steel wire can be 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 the 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, an exactly adjustable or defined pretend closed position of the first furniture part are made possible by the pivoting 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

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

FIG. 1 shows a plan view of a partially cut-out piece of furniture with drawer and ejection device with the drawer closed;

FIG. 2 shows the furniture according to FIG. 1 with the drawer partially extended;

FIG. 3 shows a detailed view of the ejection device from FIG. 2,

FIG. 4 shows a cutaway side view of the furniture according to FIGS. 1 and 2 without side wall with three drawers in the closed state or with three ejection devices,

FIG. 5 shows a front view in a highly schematized manner on the furniture according to FIGS. 1 to 4 with electrical supply and with the drawers and a discharge device omitted; FIG. 6 shows an alternative arrangement for arranging two ejection devices with attachment strip and electrical supply,

FIG. 7 and FIG. 8 show an alternative ejection device with a pivoting arm in pivoted-in and completely pivoted pivoting position,

FIG. 9 and FIG. 10 show a further alternative ejection device with a pivoting arm in pivoted-in and completely pivoted pivoting position,

FIG. 11 shows a further alternative embodiment of an ejection device in a swung-in position of the swivel arm,

FIG. 12 shows a side view of the arrangement according to FIG. 11,

FIG. 13 shows the arrangement according to FIG. 11 in a completely pivoted pivoting position of the pivoting arm,

FIG. 14 shows an arrangement according to FIG. 1 with a further alternative ejection device,

FIG. 15 shows the arrangement according to FIG. 14 with the drawer partially pushed out and the pivot arm completely pivoted,

FIG. 16 shows a detail view from FIG. 15 with the swivel arm pivoted, FIG. 17 shows an alternative embodiment of the arrangement according to FIG. 16,

Figure 18 is a partial view from the side of a piece of furniture without side wall with a discharge device and a drawer in the closed position

FIG. 19 shows another piece of furniture in a partial view from above without cover plate,

FIG. 20 shows a schematic partial view of a piece of furniture according to the invention with additional devices,

FIG. 21 shows an ejection device similar to FIG

Ejection device according to FIG. 16 in two different pivoting positions of an arm in abutment with a counter section connected to a drawer,

FIG. 22 shows a section transversely to the view of the arrangement according to FIG. 21,

FIG. 23 shows a detail in the detail from FIG. 21,

FIG. 24 shows a detail of the arrangement according to FIG

FIG. 21, wherein the swivel arm is not in contact with a counter section connected to a drawer,

FIG. 25 to FIG. 28 show a further alternative embodiment of an ejection device according to the invention according to the views of FIGS. 21 to 24, FIG. 29 shows a further alternative ejection device in the cutout with a swivel arm in a completely swiveled out position,

FIG. 30 shows a side view partly in section through the arrangement according to FIG. 29,

FIG. 31 shows the arrangement according to FIG. 29 with trailing drive unit and

FIG. 32 shows the arrangement according to FIGS. 29 to 31 with the swivel arm pivoted back.

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

Figure 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 Figure 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, as particularly shown in detail in Figure 3, 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 arrangement shown in Figure 1, the drawer 2 is 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 Ia alignment. The ejection device 4 can 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, e.g. from 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 Ia, wherein the drive units can be slidably fastened to the affected areas.

From the closed position of the drawer 2 according to Figure 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 pivoted until the pressure roller 7 presses behind 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 Pl. At maximum pivot radius of the pivot arm 5 according to Figure 2, the pivot arm is pivoted, for example, from its initial position according to Figure 1 by approximately 90 degrees, wherein the pivot arm 5 is moved along a line L with respect to its front end. In Figure 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 pivoting arm 5 is then moved back to its starting position according to Figure 1 after reaching its swung-out position according to Figure 2. 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.

Figure 4 shows the furniture body 1, omitting a side part with the rear wall Ia under a cover plate Ib. 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 ejector 4 is positioned on the rear wall 1a behind the drawer rear wall 2b, with 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.

FIG. 5 schematically shows the furniture body 1 according to FIG. 4 with the drawer 2 to 12 omitted, the ejection devices 4 and 13 being shown on the rear wall 1a and the ejection device 14 not being 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 or corresponding ejector 14 (not shown in Figure 5) via another line 17 with plug contact to a transformer 18 which a mains voltage of, for example, 220 volts, which is supplied via a line 19 with plug contact, reduced to, for example, 24 volts.

An alternative arrangement of the ejectors 4 and 13 with power supply is shown in FIG. The two ejection devices 4, 13 are fixed according to Figure 6 on a mounting rail 20 electrically contacting and according to the double arrows P2 and P3 respectively 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 Figure 5 with an operating voltage of e.g. 24 volts supplied. The ejection device 4 or the ejection device 13 in FIG. 6 have a contact element 21 or 22 for making electrical contact with a current-carrying region 20a of the mounting rail 20.

FIGS. 7 and 8 show a possible alternative embodiment of an ejection device with a drive unit for ejecting movable furniture parts, for example a drawer. The Ejector 21 according to Figure 7 and 8 includes 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 Ia of a furniture body. The externally threaded threaded spindle 23 is aligned almost parallel to the rear wall Ia 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 Figure 7, the sliding nut 26 is positioned in its almost 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. If, for example, starting from the position according to FIG. 7, the threaded spindle 23 is 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 pivoting arm 5, so that it is swung out until, for example, a maximum swing-out position according to Figure 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 Ia. But there are also smaller or larger maximum Ausschwenk- angular positions or minimum pivoting angular positions than the illustrated according to Figure 7 and 8 with the arrangement shown set up, for example with a longer threaded spindle 23rd

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.

An alternative to Figure 7 and 8 embodiment of an ejection device shows Figure 9 and Figure 10. Here, a geared motor 29 is provided, which is mounted via a receptacle 30 on a rear wall Ia of a furniture body. According to the embodiment according to FIGS. 7, 8, a pivoting arm 5 is pivotably received on the receptacle 30, said pivot arm being pivotably drivable via a displacement slide 26, a boom 27 and a displacement piece 28. 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 9, wherein the swivel arm 5 can be brought from its pivoted-back position, shown for example in FIG. 9, into a maximally swung-out position according to FIG. 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 31 and for rotatably receiving the guide roller 35, for example, a counter-receptacle 36 is provided on the rear wall Ia.

A particularly advantageous alternative embodiment of an ejection device is shown in FIG. 11 to FIG. 13. In this case, a pivoting arm 5 with a pressure roller 7 is moved pivotably about a pivot axis S by means of a magnet coil arrangement 37. 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 pivoted-back position of the swivel arm 5 or FIG. 13 shows a completely swung-out position of the swivel arm 5.

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

A further arrangement according to the invention with an ejection device 43 is shown in FIG. 14 to FIG. 16 or an alternative thereto, FIG. 17. FIGS. 14 and 15 essentially correspond to a view of the arrangement according to FIGS. 1 and 2 At a furniture rear wall Ia behind or below or above the drawer 2, a drive element with a geared motor 6 and a pivoting 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 swivel arm 5 in abutment with the drawer rear wall 2b when the swivel arm 5 is swiveled completely out. FIG. 17 shows an alternative embodiment of an ejection device in a position according to FIG. 16, wherein the swivel arm 5 has a damper device 48, for example with a fluid damper or linear damper with a fixed damper Cylinder part and therein linearly movable piston with piston rod.

When driven pivoting of the pivot arm 5 from the position shown in Figure 14 or drawer 2 closed the coupling head 44 is trapped 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 enters the position shown in FIG.

Opening sensors can be mounted laterally between a drawer front 2 a and the furniture carcass 1 (see also FIGS. 18 to 20) or can be inserted or mounted in a worktop or in a wall unit at the top, top or bottom in this opening sensor bar (not shown) are, via which an impulse 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 Figure 19) or pressing the opening sensor bar of the geared motor 6 is put into operation and the pivot arm 5 is rotated outwards, the drawer 2 via the dome spring 47 and the Slide rail 46 is pushed out of the furniture body 1 depending on Schwenkarmlänge. 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 can be seen in particular from FIG. 17, 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.

Figure 18 shows an upper portion of a furniture body 1 with a drawer 2, wherein on a cover plate Ib of the furniture body in the front area or operator side operable 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 or 57 in the furniture body, for example in a side wall 1c or an opening sensor 58 in a handle 59 of the drawer 2.

FIG. 20 shows a highly schematic arrangement of a piece of furniture with a furniture body 1, in the cover plate 1b of which an opening sensor bar 59 is integrated at the top, which is connected to a transformer and control unit 61 via a sensor line 60. 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.

A further embodiment of a coupling device similar to the arrangement according to FIGS. 14 to 17 is shown in FIGS. 21 to 24. A pivot arm 5 pivotable about a rotation axis S has a coupling head 44 which can be brought into contact with 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 encircling the dome 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 is indicated by the dotted line L2, as shown in FIG 21, along which the dome 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 detail of the front end of the swivel arm 5 with the dome head 44 received in the spring 70.

FIG. 24 shows the coupling head 44 in the coupled state, not coupled to 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 Figure 21 to Figure 24 show the figures 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. At a

Drawer rear wall 2b is 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 e.g. pushed and reaches the dome carriage 75, the front end of the pivoted arm 5, the coupling pin 74 slides into the catch 76 and pivots the safety rocker 77, which is then electrically locked by an electrical lock 78 (see Figure 26), whereupon the pivot arm 5 begins swing in and pull in the drawer.

Figure 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.

FIGS. 29 to 32 show an ejection device according to the invention with a swivel 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 or the drive hub 80 rotate 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-restoring 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 illustrated, for example, in FIG. 31, whereby the swivel arm 5 arrives at the fixed stop 85 from the end stop 85 achieved by piecewise advancing or further rotation of the drive hub 80 by approximately 25 degrees in the position shown in FIG , FIG. 32 shows the swivel arm 5 in the end swivel position reached on the fixed stop 86 without a follower position of the drive hub 80.

Reference sign list:

1 furniture carcass

Ia back wall

Ib cover plate

Ic sidewall

2 drawer

2a drawer front

2b drawer rear wall

3 leadership unit

4 ejection device

5 swivel arm

6 geared motor

7 pressure roller

8 trip contact

9 trip unit

10 angles

11 drawer

12 drawer

12a drawer bottom

13 ejection device

14 ejection device

15 angle element

16 line

17 line

18 transformer

19 line

20 mounting rail

20a area

21 ejection device

22 engine

23 threaded spindle

24 bearing element

25 pivot bearings

26 displacement nut

27 outriggers Sliding piece;

gearmotor

admission

slide

clamp

rope

capstan

idler pulley

counter receptacle

Solenoid assembly

stator

solenoid

rotor

permanent magnet

Befestigungswinke1

ejector

Kuppelköpf

side flanks

make contact

slide

dome spring

damping device

drilling

end

spiral spring

paragraph

Opening sensor bar

opening sensor

Handle

Opening sensor bar

sensor line

Transformer and control unit

management management

management

drive motor

management

display

feather

pour dome

slide

receiving ring

knuckle

dome slides

catch fork

holding rocker

lock

Spring Wire

drive hub

Schwenkarmnabe

gearmotor

limiting stop

fixed stop

Claims

Claims :

1. A device for moving mutually 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 formed such that by the pivoting of the arm driven movement of the first furniture part, characterized in that abutment means (7, 44, 47, 70, 74, 77) for at least temporarily coupling an end portion of the arm (5) with one of the furniture parts (1) during the pivoting movement of the arm (5 ) available.

2. Apparatus according to claim 1, characterized in that the abutment means comprise a receiving contour (47, 70), in which the end portion (44) of the arm (5) can snap.

3. Apparatus according to claim 1 or claim 2, characterized in that the abutment means comprise a guide arrangement (46, 72, 75) for guiding the movement of the arm in the coupling state (5).

4. Device according to one of the preceding claims, characterized in that the guide arrangement is designed such that to guide the end portion (44) of the arm (5) during its pivoting movement.

5. Device according to one of the preceding claims, characterized in that the guide arrangement comprises a guide rail (46, 72) on which a with the end portion (44) of the arm (5) coupled carriage (71, 75) is movable.

6. Device according to one of the preceding claims, characterized in that the abutment means comprise a mechanically and / or electrically securable coupling device (74, 76, 77, 78), which between the arm (5) and the arm can be brought into contact with the furniture part (2b) works.

7. Device according to the preamble of claim 1, in particular according to one of the preceding claims, characterized in that via the drive unit (22) rotatably driven spindle (23) for pivoting the arm (5) is provided.

8. Apparatus according to claim 6, characterized in that the spindle is designed as a threaded spindle (23) along which a with the arm (5) couplable carriage (26) by the rotational movement of the threaded spindle (23) is movable.

9. Device according to the preamble of claim 1, in particular according to one of the preceding claims, characterized in that a driven via the drive unit movable flexible drive member (33) for the pivoting of the arm (5) is present.

10. The device according to claim 8, characterized in that the drive member (33) is configured to move by its driven movement with the arm (5) couplable carriage (26).

11. Device according to one of the preceding claims 5, 8 and 10, characterized in that the carriage (26) is arranged transversely to the direction of movement of the first furniture part movable.

12. Device according to one of the preceding claims 5, 8, 10 and 11, characterized in that the carriage (26) via a connecting element (27) with a on the arm (5) displaceably arranged sliding piece (28) is connected.

13. Device according to the preamble of claim 1, in particular according to one of the preceding claims, characterized in that the drive unit (37) comprises an electric motor having a stator (38) with magnetic coils

(39) and a rotor cooperating with the stator (38)

(40), on which the arm (5) is formed.

14. Device according to the preamble of claim 1, in particular according to one of the preceding claims, characterized in that damping means (48, 51) are provided, with which when in contact with a furniture part (2) befindlichem arm (5) a movement damping between the Arm (5) and with the arm (5) in abutment furniture part (2) is possible.

15. Device according to the preamble of claim 1, in particular according to one of the preceding claims, characterized in that compensating means (79) are provided, with which during the pivoting movement of the arm (5) an angular offset between a gear part (80) of the drive unit (82 ) and the arm (5) is compensated.

16. Device according to one of the preceding claims, characterized in that the arm (5) is formed so that the first furniture part (2, 11, 12) is driven driven over a portion of a standard travel in a direction zurücklegbaren movement path.

17. Device according to one of the preceding claims, characterized in that the arm (5) is designed such that by the pivoting of the arm (5), the first furniture part (2, 11, 12) from a closed position to a partially open position is driven driven.

18. Device according to one of the preceding claims, characterized in that the arm (5) is adjustable in its length, in particular for a setting of the partial section of the first furniture part (2, 11, 12), via which the first furniture part (2, 11, 12) is driven with the pivoting of the arm (5) is movable.

19. Device according to one of the preceding claims, characterized in that the arm (5) is designed so as to move by pivoting the first furniture part (2) from a partially open position to the closed position to move.

20. Device according to one of the preceding claims, characterized in that a control unit (61) for controlling the drive unit (65, 66, 67) and a switching unit (59), with which a manual triggering of a pivoting movement is possible, are provided that the arm (5) driven from a basic position passes into a pivoting position.

21. Device according to one of the preceding claims, characterized in that the control unit (61) is designed to bring the arm (5) driven after pivoting from the basic position into the pivoting position in a basic position.

22. Device according to one of the preceding claims, characterized in that the arm (5) is designed so as to allow the driven movement of the first furniture part (2, 11, 12) by a pivoting movement from the basic position by up to approximately 90 degrees.

23. Device according to one of the preceding claims, characterized in that the abutment means comprises a rotatably mounted on the arm roller (7) and / or ball.

24. Furniture with a first furniture part, which is movable relative to a second furniture part (1), in particular with a drive unit (6, 22, 29, 37, 65, 66, 67, 82) driven movable drawer (2, 11 , 12), wherein a guide unit (3) for guiding the first furniture part (2, 11, 12) on the second furniture part (1) is present, characterized in that a device according to one of the preceding claims is provided.

25. Furniture according to claim 24, characterized in that a plurality of first furniture parts (2, 11, 12) are provided which are driven in each case via a device according to one of claims 1 to 23 driven.

26. Furniture according to claim 24 or 25, characterized in that a plurality of drive units (6, 65, 66, 67) are provided which are interconnected via a rail (20) and / or a cable line (16, 68).