EP2994021A2

EP2994021A2 - Electromotive drive for furniture

Info

Publication number: EP2994021A2
Application number: EP14724396.8A
Authority: EP
Inventors: Klaus-Peter Flamme; Christian Müller
Original assignee: Dewertokin GmbH
Current assignee: Dewertokin Technology Group Co Ltd
Priority date: 2013-05-10
Filing date: 2014-05-09
Publication date: 2016-03-16
Anticipated expiration: 2034-05-09
Also published as: ES2822183T3; DK2994021T3; DE102014106682A1; EP2994021B1; WO2014180978A3; WO2014180978A2; EP3750452A1

Abstract

The invention relates to a drive for a piece of furniture, comprising a functional fitting, said piece of furniture being preferably a seating and/or reclining furniture. The furniture drive and the functional fitting are inserted into the silhouette or a contour and/or a frame of the associated piece of furniture.

Description

Electromotive furniture drive

The invention relates to an electromotive furniture drive for seating and / or reclining furniture such as armchairs, beds and slatted frames. The invention further relates to a functional fitting, which is coupled to the electromotive furniture drive and the seating and reclining furniture.

Such a sitting and / or lying furniture has fixed and movable furniture components. Fixed furniture components are e.g. Frame components. Movable furniture components are e.g. solid or resilient support surfaces of a padding or a mattress of the seat and / or deck furniture.

The electromotive furniture drive is used to adjust the movable furniture components. In this case, the adjustment generated by the electromotive furniture drive is moving movement and driving force transmitted to the respective movable furniture component, wherein the electromotive furniture drive is supported on a fixed furniture component and the movable furniture component adjusted relative to the fixed furniture component. The electromotive furniture drive can also be mounted between two movable furniture components, where he can adjust these relative to each other.

Such a functional fitting couples the movable furniture components with the fixed furniture components and / or the movable furniture components with each other and is coupled to the electromotive furniture drive. Alternatively, at least a part of the function fitting is self-sufficient and to be seen as an independent system when a coupling member of the function fitting is mechanically coupled to the output member of the electromotive furniture drive. The functional fitting may comprise a plurality of coupling members which are interconnected. Such compounds may be articulated. Other connections are solid. Thus, the functional fitting can also be understood as a lever chain or lever link chain, which may also have hinges. Another coupling element of the functional fitting is mechanically coupled to a furniture component. The connection can be firmly formed. Alternatively, it is articulated. Other connections are sliding or loose force pads.

Electromotive furniture drives and functional fittings are known from the prior art in a variety of different designs for different applications and purposes. Electromotive furniture drives are e.g. as single drives, double and multiple drives in use.

Starting from the state of the art for electromotive furniture drives, some are regarded as disadvantageous.

Often an electromotive furniture drive obstructs the accessibility of a storage space below the furniture component to be adjusted. The documents DE 89 1 1 226 and DE 20 2008 016 980 very strikingly illustrate a high overall height and very far below the base frame protruding elements of the electromotive furniture drive and the function fitting. A storage space, for example in the form of a drawer below the bed can virtually not be used.

Furthermore, adjustable neck restraints are only rarely available, which is considered disadvantageous, since in the absence of adjustability often must be resorted to additional pillows. The furniture has a fixed width, intermediate sizes can only be realized if furniture and functional fittings are changed. As far as the functional fitting is concerned, especially the intermediate sizes lead to a logistical additional expenditure if intermediate dimensions are produced as custom-made, e.g. welded, should be.

Parts of the functional fitting such. Levers can have a large distance to pivoting furniture components, which can be dangerous due to crushing and shearing and is also visually inappropriate. In the case of variable-use single drives, with struts for each

If applications are connectable, special struts are always required. Only one level variability with a high pitch can be used. In addition, special profiles must be used, which leads to increased costs. In some electromotive furniture drives a very large height is present, which restricts, for example, a floor space and storage (eg stackability of slatted frames) can complicate. In particular DE 89 1 1 226 illustrates this.

Furthermore, often complex couplings of the functional fitting to the output member of the drive train of the electromotive furniture drive are recorded, which complicate assembly during assembly and repair and extend.

An object of the invention is to provide a furniture drive and a functional fitting of the type mentioned, which no longer has the disadvantages mentioned above and also offers additional advantages.

The solution of the task is carried out by a furniture drive with the features of claim 1, and by a functional fitting with the features of claim 48. The furniture drive according to the invention is formed with the functional fitting and for adjusting movable furniture components relative to each other in the silhouette or contour or / and a frame of the furniture to be assigned is used. This results in advantages of a low overall height and ease of assembly and compilation.

An inventive furniture drive for furniture, in particular sitting and reclining furniture such as armchairs, beds and slatted frames has at least one electric motor and a Spindelhubgewinde for adjusting support surfaces of a padding or mattress of the furniture relative to each other and / or to fixed components of the furniture. The furniture drive is designed with a functional fitting and can be used in the silhouette or contour and / or a frame of the furniture to be assigned.

Here, parts of the functional fitting and / or parts of the furniture drive are designed as furniture components or at least partially as furniture components.

In this case, furniture and / or functional fitting and / or furniture drive are mounted in the production of a structural unit, which allows a particularly simple and cost-effective installation. In a further embodiment, parts of the functional fitting and / or the furniture drive can be mounted on a piece of furniture or on a furniture component. In this case, the furniture can be used as a whole unit, independently of the functional fitting and / or independently of the furniture drive, resulting in a significantly large versatility.

In one embodiment, the functional fitting has a back part pivotable about a back part axis, with a neck support movably attached thereto by means of a hinge, and / or a leg part axis

pivotable leg or foot part, wherein the back part and the Beinbzw. Foot part are each coupled to a pivot lever. Each pivot lever is connected to a respective output member of the furniture drive in cooperation. As a result, an individual and independent adjustment of back and leg or foot is possible.

If the neck support is coupled with another pivot lever, there is a simple and advantageous additional adjustment for the neck support. An individual adjustment is even possible if a pivot point of the other pivot lever of the neck support has the same pivot point as the coupled to the back pivot lever in the back part axis, and wherein the two pivot levers are offset at an angle to the back part axis to each other and with a common output member the Spindelhubgewindes the furniture drive in cooperation.

Alternatively, the neck support may be coupled to a further pivoting lever, wherein a pivot point of the further pivot lever in the back part axis has the same pivot point as the coupled to the back pivot lever, and wherein the two pivot levers each with one of two stages arranged in offset contact surfaces of a common

Abtriebsgliedes the Spindelhubgewindes the furniture drive are in cooperation.

In yet another alternative embodiment, the neck support is eccentrically guided about the hinge by means of a coupling member, wherein a

Output end of the coupling member is coupled to the hinge, and wherein the other end of the coupling member is articulated to a non-movable part of the furniture or to a non-movable part of the furniture drive. In this way, the neck support is automatically adjusted when the back part of a has reached a certain position. So, nevertheless, with a few components, a neck support adjustment can be easily realized.

Another embodiment provides that the Spindelhubgewinde for adjusting the back part and the Spindelhubgewinde for adjusting the leg part are designed as individual drives, each one Spindelhubgewinde is arranged with the associated motor in each case a separate housing. This makes it possible, e.g. only the leg part or only the back part, or both equipped with a drive adjustable.

In one embodiment, two Spindelhubgewinde beinteilseitig and two Spindelhubgewinde provided on the back part side, wherein in each case a Spindelhubantrieb for the headboard / back section and one Spindelhubantrieb each side are provided for the Fußteilbereich in side area of the furniture. This results in an advantageous division of the drives on both sides of the furniture and effective space utilization.

In another embodiment, the housing of each screw spindle thread can be provided with a connection, which is designed as a spar receptacle for receiving a furniture component or a section of a furniture component for attachment to the furniture component. This is a simple and quick installation and versatility to adapt to different dimensions, i. Lengths and widths of the furniture, possible. It can also be provided with a Holmenaufnahme at least one pivot lever.

Alternatively or additionally, it is possible that the Holmenaufnahme is pivotally mounted on the housings of the Spindelhubgewinde, resulting in an advantageous versatility. In a further embodiment, the Holmenaufnahme may have two sections, wherein a portion is designed as a pivot lever or as

Swivel lever acts, the other portion of the Holmenaufnahme is designed as a Holmenaufnahme itself. This results in an advantageous simplification.

Furthermore, it may be possible that the housing of all Spindelhubgewinde each form a bar member, and that on each housing two

Holmenaufnahmen are pivotally mounted, resulting in a further simplification. In another embodiment, at least one electric motor is arranged in a motor unit of the furniture drive, wherein the motor unit is provided with a slatted frame unit and connected with at least two Spindelhubgewinden, wherein the motor unit within the frame from an inner side of the frame all the way to the other inside Frame, and wherein each one of the at least two Spindelhubgewinde is arranged on an inner side of a longitudinal member of the frame and / or in a longitudinal member of the frame. Thus, a complete assembly can be created, which allows easy installation in a piece of furniture.

In this case, the at least one electric motor can have two drive shafts which transmit rotational movements of the electric motor via a respective flexible shaft to a respective screw of a worm gear of a respective spindle lifting thread. Thus, a motor can be advantageously arranged in the middle of a frame, whereby a space under the frame can advantageously remain free.

When the electric motor of the motor unit is disposed in a tube extending in the transverse direction of the slatted base, and a respective end of the tube is fixedly attached to each housing of the screw screw, a simple adaptation is made the width of the frame or the furniture by simply cutting the length of the tube possible.

In an alternative, the electric motor of the motor unit may be arranged in a tube or tube which extends in the transverse direction of the slatted base, and wherein a respective end of the tube and a respective longitudinal side of the slatted frame are releasably attachable to a respective housing of the screw jack thread, and wherein a respective end of the flexible

Shafts on each one screw of a worm gear of a respective Spindelhubgewindes is releasably connectable again. So an advantageous simple and quick attachment is possible. In one embodiment, the furniture drive has at least one output opening, in which a pivot lever for cooperation with the output member is used. For closing the output opening a C-shaped closure element is provided in a simple manner. Another embodiment provides that a linear output member of the Spindelhubgewindes is indirectly connected to the pivot lever by at least one coupling member in operative connection. This can be a position of

Swing lever influence so that an advantageously low height of Möbel drive can be achieved.

It is further provided that the at least one coupling member in a guide contour of a housing of the furniture drive between the

Output member and a pressure piece of the pivoting lever is movably guided. For a simple guidance of the at least one coupling member is possible. The guide contour of the housing of the furniture drive can be formed as a channel-like recess in the housing and / or be formed as raised. Of course, combinations are possible. The guide contour can thus advantageously be easily integrated into the housing.

The coupling members may be formed, for example, as balls and / or rollers. In one embodiment, the coupling members may also be interconnected to form a chain, allowing for simplified assembly. Yet another embodiment provides that two furniture drives, each having a housing and each having an electric motor are connected to one another by a connecting means. In this way, a number of drives can be easily connected to each other. It is advantageous if the connecting means is a connecting element, which is formed as a rigid profile and the length is inserted with one end into one of the housing of the furniture drives and firmly connected to each. So a stable connection is possible. If the connecting element is formed from a cut-to-length, rigid profile, simple and versatile adaptations to different dimensions of the furniture can be carried out.

In yet another embodiment, the furniture drive has at least one output opening, in which a pivot shaft with a pivot lever for cooperation with the output member is used. In this case, a U-shaped closure element for closing the output opening is provided by rotation. A simple closing of the output opening and securing the closure element is thus possible. In an alternative embodiment, the connecting means is designed as a multi-part, shell-shaped connecting unit. This allows easy installation.

Here, the multi-part connection unit may comprise at least two shells, which are provided with holding portions which are engageable with corresponding holding portions on the housings of the furniture drives. If the holding sections are designed in the manner of a toothing, for example T-slots and / or dovetail connection, not only easy mounting but also simple mounting and securing is possible.

In a further embodiment, it is provided that the at least two shells of the multi-part connecting unit from both longitudinal sides of the housing are inserted in a form-fitting manner parallel to pivot axes on the respective housing of the respective furniture drive, wherein the holding portions of the shells with the corresponding holding portions of the respective housing form fit in Engage. This allows a simple and quick attachment of the connection unit. The connection unit may e.g. be prepared as a Kunststoffsp tzgießteil. But there are also metallic materials and / or combinations of different materials possible.

A further embodiment is that a linear output member of a Spindelhubgewindes with a connecting rod in cooperation, wherein the connecting rod is articulated to the free end of a linkage lever in a pivot axis. In this way, a height of the housing can be positively influenced.

In addition, it is provided that the articulation lever has a pocket for coupling a pivot shaft of the functional fitting, a driver of the pivot shaft being designed to be coupled to the pocket. This results in an advantageous simple installation.

A still further embodiment provides that an articulation lever or the pivot lever is an integral part of the function fitting and has a pivot axis which is fixedly mounted pivotably in a recess as the output opening of the furniture drive, wherein the free end of the Swivel lever has a pressure piece, which is formed as a round body axially parallel to the pivot axis. This allows an advantageous coupling of the functional fitting to the drive. It is envisaged that a width of the pressure piece in the direction of

Pivot axis is greater than a width of the pivot lever in the direction of the pivot axis, wherein the pressure piece is guided in arcuate slots / pockets or Verschwenkkonturen a housing of the furniture drive. This ensures a stable guidance during power transmission of the drive.

In one embodiment, an introductory contour opens from the output opening of the housing into the guide contour, wherein a further closure element is provided for closing one end of the introductory contour in front of the mouth of the introducer contour in the guide contour. This allows a continuous guide contour after installation of the pivot lever.

Furthermore, it is provided that the closure element has a first form-fitting contour concentric with the pivot axis, in the closed state of the output opening to an inserted in the mounting position

Pivot shaft engages and is rotated about the inserted pivot shaft for stationary securing the pivot shaft, which can allow a simple and effective locking of the pivot shaft. For this purpose, the housing of the furniture drive in the region of the output opening on a second form-fitting contour, which also concentric with

Pivot axis runs when the pivot shaft is located on the furniture drive in the mounting position, wherein after rotation of the closure element, the first and the second positive locking contour engage one another in a form-fitting manner. Thus, the locking of the closure element is simplified.

Another embodiment provides that the furniture drive has an electric motor, which cooperates with at least two Spindelhubgewinden via a gear for adjusting a plurality of furniture components. This advantageously makes it possible to use a motor for two or more adjustment functions.

In this case, the at least two spindle lifting threads each have a threaded spindle with an opposite direction of pitch, wherein the threaded spindle your and the gear have a common axis of rotation. Thus, different directions of movement are possible in a simple manner.

It is also provided that on the threads of each threaded spindle a nut is applied, each nut is non-rotatable, but longitudinally displaceable and guided in the housing of the furniture drive, each nut directly or via intermediate links on an adjusting lever or Pivoting lever, which is coupled to the associated furniture component and / or with a furniture component to be adjusted.

Furthermore, it is provided that a head or rear part nut with the furniture component for adjusting the back part is in communication, and that a leg nut with the furniture component of the leg part and / or the foot part is in communication. Thus, the back part and the leg part and / or the foot part are effectively connected to the drive. Here, the back nut acts directly on the back of the furniture, and the leg nut acts via an intermediate member on the leg part of the furniture. Thus, the impact compounds are provided in a simple manner. For this purpose, at least one coupling slide is also provided, which is arranged displaceably mounted between the back part nut and the intermediate member. This results in an advantageous further coupling possibility for individual adjustment of the associated furniture parts. Here, guide means such as webs or recesses for displaceably guiding the at least one coupling slide are provided in the housing to allow easy adjustment.

The coupling slide can be made in one or more parts. Also, different materials are possible.

An inventive functional fitting for a furniture drive, for coupling with a furniture to be assigned, in particular a sitting and reclining furniture, wherein the adjusting movement generated by the furniture drive and driving force on the respective fixed or movable furniture component of the assigned furniture is transferable, is with a trained above furniture drive and installed in the silhouette or contour and / or in a frame of the furniture. This results in an advantageously simple assembly how versatile installation and adaptation options for different furniture.

In one embodiment, the functional fitting has output levers which are coupled at least to a back part or to a leg part of the furniture to be assigned and are connected to the housing of the furniture drive or hinged thereto, wherein a compact unit of furniture drive and functional fitting as a functional system formed and formed with the furniture in each case connectable to the inside of the frame. This created an advantageous compact unit.

In a further embodiment, the functional fitting has two drive units in which the screw strokes are arranged, wherein an assembly unit for attaching a frame or slatted base is attached to the outer sides of the drive units. This compact and simple design allows for easy installation.

A further embodiment provides that the mounting unit each forms an integral molding with the housing of the drive unit, wherein a height of the respective mounting unit is less than the overall height of the respective drive unit. This can achieve an advantageously low overall installation height.

In yet another embodiment, the functional fitting on a two-door furniture drive in a housing with pivot shafts, wherein the pivot shafts extend transversely to a longitudinal axis of the twin-engine furniture drive out of this and outside comprise a polygonal tube. With this, an advantageous structural unit is provided, which in a simple manner, e.g. By cutting the pivot shafts, can be adapted to different widths of a frame or a piece of furniture.

In another embodiment, a respective output member of the furniture drive is pivotally mounted to the housing and has an inner profile, which on the outer side profile of the pivot shaft and the polygonal tube on the receiving side positively in a rotationally fixed connection with it, with a bearing of the pivot shaft or of the polygonal tube by bearing plates, which are arranged rotatably mounted at the respective free end of the pivot shaft and the polygonal tube, formed, and wherein the bearing plates themselves with the frame of the furniture or the slatted frame are connectable. This allows easy assembly, with an assembly is facilitated.

The invention thus offers the following special advantages:

It is realized a flat design of the furniture drive.

On the lower boundary level of the furniture are no parts of the furniture drive and the function fitting out, so the furniture can be placed directly on the floor or in a bed frame with a flat closed substructure. It can be used a bed box drawer.

A neck support can be operated separately and / or leading in the movement sequence.

The functional fitting and / or the furniture drive are designed so that any width and any length of furniture / slatted frame / bed can be realized.

The functional fitting and / or the furniture drive are designed so that the functional fitting can be changed with just a few means into a functional fitting with a fixed width or width.

A number of furniture drives can be connected together to form a unit.

The furniture drive is easy to install in the furniture / functional fitting, i. lightweight and easy to install and remove.

The furniture drive and the functional fitting are designed so that the furniture is easily stackable after installation.

Furniture drive and functional fitting are easy to assemble and robust in design.

Reference to the accompanying drawings, the invention is explained in detail. Show it:

Figure 1 is a schematic perspective view of a first embodiment of a piece of furniture in the form of a bed with a first embodiment of a functional fitting and an electromotive furniture drive in the form of a double drive;

Figure 2 is a side view of a second embodiment of a

Furniture in the form of a slatted frame with frame; Figure 3 is a side view of a variant of the second embodiment of Figure 2; Figure 4 is a side view of a slatted frame with a second embodiment of an electromotive furniture drive;

Figure 5 shows a variant according to the embodiment of Figure 4; Figure 6-7 sectional views of a slatted frame with a third embodiment of an electromotive furniture drive;

Figure 8 shows a furniture drive of a fourth embodiment in side view;

Figure 9-10 a variant of the fourth embodiment of the furniture drive of Figure 8 in two end positions;

FIG. 11 shows two furniture drives in side view of a fifth exemplary embodiment;

Figure 12 shows two furniture drives in perspective view of a sixth embodiment; Figure 13 shows another embodiment of a functional fitting according to the third embodiment of the electromotive furniture drive of Figure 6 and 7;

Figure 14 shows another embodiment of a functional fitting according to the sixth embodiment of the electromotive furniture drive of Figure 12;

Figure 15-16 a furniture drive according to a seventh embodiment in a sectional view from the side in two end positions;

Figures 17-19 a furniture drive according to an eighth embodiment in various sectional views and views; and

Figure 20 is a furniture drive according to a ninth embodiment. Figure 1 shows a schematic perspective view of a first embodiment of a piece of furniture 1 in the form of a bed with a first embodiment of a functional fitting 4 and an electromotive furniture drive 3 in the form of a double drive.

The furniture 1 is formed as a slatted frame 2 or as a bed reclining furniture and includes in this example a seat part 2a, a back part 2b, a leg or

Foot part 2c and a neck support 2d, which form the support surfaces of a mattress or the support surfaces of a padding. These support surfaces are adjustable such that the back part 2b about a back part axis 2f (see FIG. 2) and the leg or foot part 2c about a leg part axis 2g (see FIG. 2)

are pivotable and can take different positions. Figure 1 shows these support surfaces in an adjusted position, e.g. can be referred to as read position.

Furthermore, the furniture 1 has a functional fitting 4 and / or the electromotive furniture drive 3, wherein the functional fitting 4 and / or the furniture drive 3 are inserted into the silhouette or contour of the furniture 1 in an inventive manner. As a function fitting is an embodiment according to the following figure descriptions in question.

A handheld remote control for the operation of the furniture 1 is provided, which is formed in this embodiment, for example wirelessly as a radio remote control. The handheld remote control and an associated radio receiver and a controller with a power supply are not shown here. Alternatively, a smartphone is designed as a handheld remote control and is connected to the receiver by means of Bluetooth. According to another form, not shown, the handheld remote control can also be designed as a cable handset. The cable handset may be connected to an associated controller. Alternatively, the switching contacts of the buttons of the cable manual switch for direct switching of the motor current of one or more motors of the furniture drive 3 are provided. In any case, however, a motor is provided which can be operated with a low voltage, for example a safety extra-low voltage of less than 30V. The functional fitting 4 is attached to the electromotive furniture drive 3 in a frame 5. As electromotive furniture drive 3 is an embodiment according to the following description of the figures in question. The embodiment of a reclining furniture according to Figure 1, with each of

Embodiments of an electromotive furniture drive 3 and a function fitting 4, as will be described in more detail in the following figures, be equipped. Feet to set up are not shown. These can be used when the base frame of the embodiment of Figure 1 is slightly more massive, so that thereby a bed is formed.

2 shows a side view of a further embodiment, wherein the electromotive furniture drive 3 with a drive unit of the slatted base 2 a Spindelhubgewinde 6, 6 "for generating a linear adjusting force.

The linear adjustment force acts on two pivot levers 7, 7 ', which have a common pivot point in the back part axis 2f, but offset at an angle to this back part axis 2f to each other, so that upon actuation first, the first pivot lever 7 and then the second Pivoting lever 7 'is moved by a driven member 8 of the Spindelhubgewindes 6. The first pivot lever 7 is connected to a coupling member 4a, for example, a rod or a rod, wherein the connection point of the coupling member 4a is arranged on the pivot lever 7 at a distance to the pivot center about the back part axis 2f, which is moving its adjustment to a hinge 2e of the neck support 2d eccentrically transmits, so that the neck support 2d is thereby pivoted about a pivot axis of the hinge 2e. Since the first pivot lever 7 is moved first, coming from the basic position of the slatted frame 2, the neck support 2d leading and operated first. Only after a predetermined linear displacement of the screw stroke 6, the back part 2b is further pivoted together with the neck support 2d to the back part axis 2f. It should be noted that each pivot lever 7, 7 'has a first end portion with a pivot point about the back part axis 2 f, around which it is pivotally mounted, and has a second end portion formed as a free end, which with the associated output member 8 of the screw spindle 6 is in active connection. Thus, back part 2b and rod 4a are hinged thereto neck support 2d by a common output member 8 of the screw spindle 6 in succession, because coming from the lowered basic position of the neck support 2d coming out a greater distance between the contact points of the

Pivot lever 7 'and the output member of the Spindelhubgewindes 6, while the distance between the contact points of the pivot lever 7 and the output member 8 of the Spindelhubgewindes 6 is low. As an alternative to the angular offset of the pivoting levers 7, 7 'mentioned at the beginning, a staggered offset of the contact surface of the output member 8 of the screw spindle 6 with the respective pivoting lever 7, 7' can be provided, so that two contact surfaces arranged in an offset manner with respect to each other for contacting with the respective pivot lever 7, 7 'are provided. Another Spindelhubgewinde 6 "is associated with another

Output member 8 "provided, wherein the further output member 8" cooperates with a further pivot lever 7 "for adjusting the leg portion 2c.

Each spindle lifting thread 6, 6 "is moved by an electric motor in each case Alternatively two spindle lifting threads 6, 6" are coupled together and can be moved together by an electric motor. In any case, however, the movement of the spindle lifting threads 6, 6 "takes place as a rotating movement via a speed reduction gear coming from an electric motor, and at least one of the screw strokes 6, 6" is arranged in a housing. The components of the spindle lifting threads 6, 6 "are mounted rotatably or displaceably in the housing, and the respective linearly movable output member 8, 8", which is connected to the pivot lever 7 and 7 '; 7 "is mounted on the housing According to one embodiment, the pivoting lever 7, 7 ', 7" is also mounted on the housing. Alternatively, the pivoting lever 7, 7, 7 "has a different mounting when it is fastened to a shaft of the functional fitting 4 and the shaft is pivotally mounted on a bearing which is attached to a furniture component. 8 "of the Spindelhubgewindes 6, 6" experiences its linearly extending movement by converting the rotational movement of a threaded portion of the Spindelhubgewindes 6, 6 "in the linear movement along the central longitudinal axis of the rotational movement. Preferably, a threaded spindle experiences the Spindelhubgewindes 6, 6 " their rotational movement through a Drehzahlreduziergetriebe, wherein the threads of the threaded spindle with a rotatably mounted threaded nut of the respective output member 8, 8 "engaged.Alternatively, a gear of Drehzahlreduziergetriebes with a central and along the axis of rotation extending threaded bore provided with a nut thread, the thread a rotatably mounted threaded spindle is connected to the threads of the nut thread and the threaded spindle with the respective output member 8, 8 "of the Spindelhubgewindes 6, 6" performs the linear output movement.

Furthermore, each housing of the electromotive furniture drive 3 may consist of a plastic and may be firmly connected to a furniture component, as illustrated for example Figure 13. Alternatively, the housing of the electromotive furniture drive 3 may be mounted on a shaft to which also the respective pivot lever 7, 7 ', 7 "is attached, as illustrated for example Figure 14.

According to Figure 2, the pivot lever 7 'is further firmly connected to the back part 2b, so that back part 2b and pivot lever 7, 7' have a common pivot point in the form of the back part axis 2f. Alternatively, the back part 2b is connected directly or via a lever chain with the frame 5 and thus connected to the frame 5 articulated and movable. Then a non-illustrated lever is provided, which is connected to the pivot lever 7 'and engages under a support surface or under a spar of the back part 2b to move it against gravity can.

The same applies to the arrangement of the leg part 2c. According to Figure 2 is the

Pivoting lever 7 "fixedly connected to the leg part 2c and pivoted about this with the leg part axis 2g, wherein alternatively a lever is provided which is fixedly connected to the pivoting lever 7" and is operatively connected to the leg part 2c when the leg part 2c with a furniture component or on the frame 5 is pivotally connected.

FIG. 3 differs from FIG. 2 and its description in that here the spindle lifting thread cooperating with the back part 2b has the reference numeral 6 ', so that the two screw spindle threads 6' and 6 "with their associated output members 8 and 8" are illustrated in a longitudinal section , and that the furniture drive 3 are shown enlarged only with the back part 2b and the neck support 2d. Here is another embodiment of the coupling member 4a, wherein the back part 2b and neck support 2d always move simultaneously and synchronously with each other. It is still provided in contrast to Figure 2, only one pivot lever 7. All other features of Figure 2 are also realized here and are not listed separately. FIG. 3 thus shows a further embodiment of a coupling member 4 as a rod, which is eccentrically guided with its output end to the hinge 2e of the neck support 2d. The drive end of the coupling member 4a is hinged to a non-movable part of the furniture 1 or to a non-movable part of the furniture drive 3.

If the back part 2b pivoted by the Spindelhubgewinde 6 ', so the pivot lever 7 moves such that the neck support 2d is simultaneously pivoted with, because a relative movement between the drive end of the coupling member 4a and the non-movable part of the furniture 1 or not movable part of the furniture drive 3 results when the back part 2b is pivoted about the back part axis 2f.

The figure 4 differs from the figures above and their descriptions essentially in that the Spindelhubgewinde 6, 6 'for adjusting the back part 2b and the Spindelhubgewinde 6 ", 6"' for adjusting the leg part 2c are designed as so-called individual drives, in each case a Spindelhubgewinde 6, 6 ', 6 ", 6"' is arranged with the associated motor in each case a separate housing. All other features mentioned above of the previous figures, in particular of FIGS. 2 and 3, are likewise realized here and are not listed separately.

FIG. 4 shows a side view of a slatted frame 2 with a second or with a further exemplary embodiment of an electromotive furniture drive 3.

The furniture 1 is e.g. a slatted base 2 or a bed, in which a head part 2b and a leg part 2c are adjusted to a raised position.

According to FIG. 4, as well as additional alternatives to FIG. 2 and FIG. 3, two spindle lifting drives 6 ", 6"'are provided on the side part and two spindle lifting drives 6, 6' on the rear side. In each side region of the furniture 1 is thus a respective Spindelhubantrieb 6, 6 'for the head portion / back portion and a respective Spindelhubantrieb 6 ", 6"' each side provided for the Fußteilbereich. Each screw jack drive 6, 6 ', 6 ", 6"' can each be equipped with an electric motor. romotor 3a are operated. It is also possible, as will be shown below (eg, FIGS. 6, 7, 13), that two screw stroke drives 6, 6 each are operated by a common electric motor 3 a. The housing of each Spindelhubgewindes 6, 6 ', 6 ", 6"' is provided with a connection for attachment to a furniture component. In this embodiment, the furniture component is formed by the seat part 2a and by the leg part 2c. Furthermore, the seat part 2 a or the leg part 2 c can be considered as a bar member. As is also illustrated in FIG. 1, the support surface or the elements for receiving a padding or mattress are arranged on each rail member. Furthermore, a portion of the respective housing according to the embodiments of the previous figures, in particular according to the figures 2 and 3, also be formed as a tie bar member. Alternatively, and for very short Holmenglieder the entire housing of the respective Spindelhubgewindes 6, 6 ', 6 ", 6"' may be formed as a spar member.

Further, the respective pivot lever 7 ', 7 "is pivotally mounted on the respective housing, wherein the storage forms the back part axis 2f and the other storage the leg part axis 2g.

On the pivot lever 7 'is a Holmenglied connected in the form of the back part 2b. For this purpose, the pivot lever 7 'is provided with a Holmenaufnahme 70, which is designed as a pocket or as a recess for receiving a spar of the back part. Similarly, the pivoting lever 7 "is also provided with a spar holder 70 of the type mentioned above, which is connected to a bar member in the form of the seat part 2a Housing the Spindelhubgewindes 6 ", 6" 'together with the leg part 2c performs the adjustment or pivoting movement.

The Holmenaufnahme 70 is pivotally mounted in the embodiments of Figure 4 on the housings of Spindelhubgewinde 6, 6 ', 6 ", 6"'. In an alternative compact design of the Holmenaufnahme 70 has these two sections, wherein a portion as a pivot lever 7 ', 7 "is formed or as a pivot lever 7', 7" acts. The other portion of the Holmenaufnahme 70 is as

Holmenaufnahme 70 self-trained and takes the spar, for example, designed as a spar back part 2b, designed as a spar neck support 2d, trained as a spar seat part 2a, trained as a spar leg part 2c, designed as a spar lower leg part 9a. Both sections are off formed a one-piece molding. You could also say that

Swivel lever 7 ', 7 "is formed as an integral part of the Holmenaufnahme 70 Alternatively, the pivot lever 7', 7" completely or at least partially as a pivot lever 7 ', 7 "and connected to the Holmenaufnahme 70.

In another embodiment, not shown, an electric motor 3a is provided with only one Spindelhubgewinde 6 headboard side. A second spindle lifting drive 6 "is provided with a second electric motor 3 a for moving the leg part side of the furniture 1.

FIG. 5 differs from FIG. 4 in that now also the housing of the spindle lifting thread 6, 6 'of the back part 2 b carries out the adjustment movement of the back part 2 b, and that the housings of all screw spindle threads 6, 6', 6 ", 6" 'each form a spars member, and that on each housing two

Holmenaufnahmen 70 are pivotally mounted. All other features mentioned above of the previous figures are also realized here and are not listed separately. 5 shows a side view of a slatted frame 2 or a bed with movably mounted components and four Spindelhubgewinden 6, 6 ', 6 ", 6"', each with a linearly movable output member 8, 8 ', 8 ", 8"' per Spindelhubgewinde 6, 6 ', 6 ", 6"'. The output members 8, 8 'of the spindle lifting threads 6, 6' move in opposite directions (threads have unequal pitch direction) and each act on a pivoting lever 7 'and 7 "'. The legs move in the same direction (threads have the same pitch direction), and while a thigh part 9 is lifting, a lower leg part 9a moves back in a knee joint 9b the Holmenaufnahmen 70 attached or form as an alternative an integral part of the respective Holmenaufnahme 70th

6 and differs from all other figures and their descriptions substantially in that a motor unit 12 extends substantially within the frame 5, in particular extends from the one inside of the frame to the other inside of the frame 5, and that it is a structural unit. FIG. 7 differs from FIG. 6 in that here there are three structural units which, as will be explained in more detail, are combined to form a total structural unit in the form of the motor unit 12 according to FIG. All others mentioned at the beginning The features of the previous figures, as well as features of the following figures are also realized here and are not listed separately

6 and 7 show sectional views of a slatted base 2 with a third or with a further embodiment of an electromotive furniture drive 3rd

FIG. 6 shows, in cross-section, parts of a piece of furniture 1 designed as a slatted base 2 with a furniture drive 3, viewed in the longitudinal direction of the slatted frame 2. The slatted frame 2 has a frame 5 (see also FIG. 1). On each side of the frame 5 a Spindelhubgewinde 6, 6 'is arranged, which is arranged on an inner side of a longitudinal member of the frame 5 and / or in a longitudinal member of the frame 5. The electric motor 3a has two drive shafts 3b, 3b ', which control the rotational movement of the electric motor 3a via a respective flexible shaft 10, 10' to a respective screw 11a, 11a 'of a worm gear 11, 11' of a respective screw stroke 6, 6 'transmit the flexible shaft 10, 10' is formed as a multi-layer stranding and still includes a support means. The support means is formed in one embodiment as a flexible, non-rotatably fixed protective sheath, which leads at least in sections with at least a portion around the therein located rotating part of the flexible shaft 10, 10 '. Alternatively, the protective sheath is continuous

Hose made of a plastic. Since the rotational speed of the flexible shaft 10, 10 'is very high, means for noise reduction are provided. These are provided in the gap between the rotating part of the flexible shaft 10, 10 'and the support means or the protective jacket, so that there is a complete freedom of play between the rotating part and the non-rotating part of the flexible shaft 10, 10'. In one embodiment of the means for noise reduction, a so-called flocking is provided for this purpose, which is firmly connected to the rotating part of the flexible shaft 10, 10 '. A further embodiment provides plastic bushings, which are provided as means for noise reduction.

Not shown in detail is a Spindelhubgewinde 6, 6 ', which is coupled to a respective worm wheel 1 1 c, 1 1 c', for generating a linear displacement force, which is perpendicular to the viewing plane according to the figure. The

Worm wheel 1 1 c, 1 1 c 'forms the gear mentioned above, which is connected to a threaded spindle of Spindelhubgewindes 6, 6'. The functional fitting 4 and / or the support surfaces 2a-d, which / is at least coupled to the back part 2b, is / are not shown here in detail. Further, the electric motor 3 a is arranged in a tube or a pipe which extends in the transverse direction of the slatted base. The respective end of the tube adjacent to a respective housing of the Spindelhubgewindes 6, 6 'and is thus firmly connected. Furthermore, the central longitudinal axes of the screws 11a, 11a 'are not aligned with the central longitudinal axis of the electric motor 3a. In an inventive manner, a height offset is formed, wherein the electric motor 3 a is offset relative to the regular Aufstellform of the slatted base 2, and the furniture 1 upwards to reduce the overall height of the slatted base 2. Furthermore, the motor unit can be combined to form a preassembled structural unit, as will be explained in greater detail on the basis of an example according to FIG. Such a unit of a motor unit together with the Spindelhubgewinden 6, 6 'is adapted to be used in a preassembled furniture 1 or in a preassembled slatted frame 2. Alternatively, the furniture 1 or the slatted frame 2 can be mounted around the compact unit of the motor unit 12 around it, so that a fused unit with the furniture 1 is formed.

Furthermore, this embodiment contributes in an inventive manner to a width variability of the furniture 1 and the slatted frame 2 at. The production of furniture 1 and slatted frame 2 in different widths is an important market requirement. On the part of the electromotive furniture drive 3 according to the invention only two, at most only three, components required. The length of the tube is freely determinable from one meter and can be cut to length accordingly. Thus, each width of the motor unit 12 and thus also each width of the slatted frame 2 can be produced. The same applies to the flexible shaft 10, 10 ', since it can also be produced as a section of a meter. If the electric motor is arranged halfway in the tube, both flexible shafts 10, 10 'have the same length. Furthermore, a connecting cable not shown in more detail leads to the electric motor 3a, which can run through the tube and is also freely cut to length by a meter.

Furthermore, the purpose of the motor unit 12 are mentioned. In one embodiment, the motor unit 12 is intended for adjusting the back part 2b. Alternatively, the motor unit 12 or another motor unit 12 may be designed with a different set adjustment path for adjusting the leg part 2c. According to these two embodiments, two Spindelhubgewinde 6, 6 'associated with an electric motor 3a. In another embodiment, the single electric motor 3a, two flexible shafts 10, 10 'associated with two worm gears 1 1, 1 1' and two special designs of Spindelhubgewinde 6, 6 ', each Spindelhubgewinde 6, 6' are associated with two threaded spindles, and wherein each threaded spindle is associated with a driven member 8, 8 ', 8 ", 8"'. each

Output member 8, 8 ', 8 ", 8"' of a Spindelhubgewindes 6, 6 'acts on the free end of a pivot lever 7, 7', 7 ", 7" ', 7 "". An attributable embodiment illustrates the figure 20, wherein the pivot lever 7 "', 7" "are shown and the detailed structure will be explained.

FIG. 7 shows the embodiment according to FIG. 6. However, it is strikingly illustrated that the linear drive units 21, 21 '(see FIG. 13) with the spindle lifting threads 6, 6' and the central motor unit 12 with a slatted frame unit 13 each have a preassembled unit form, so that the assembly of the furniture 1 is simplified.

The worms 1 1 a, 1 1 a are connected via worm clutches 1 1 c, 1 1 c 'with respective couplings 10 a, 10 a' of the ends of the flexible shafts 10, 10 'rotatably and pluggable.

The motor unit 12 is connected to the side parts of the slatted frame 2, in which the drive units with the Spindelhubgewinden 6, 6 'are arranged, via mutually corresponding connection portions 12a, 12a', 12a ", 12a '" pluggable. In a similar manner, the slatted frame unit 13 can be plugged into plug-in connection with side parts of the slatted base 2 via connecting sections 13a, 13a ', 13a ", 13a' ', resulting in simple assembly.

An alternative embodiment of Figure 7 differs from all other figures and its descriptions, but in particular compared to Figure 6, essentially in that the electromotive furniture drive 3 is now formed as a multipart electromotive furniture drive 3, wherein a motor unit 12 with two Spindelhubgewinden 6, 6 'is configured connectable. All other features mentioned above of the previous figures, as well as features of the following figures, are also realized here and are not listed separately

As before, the motor unit 12 extends substantially within the frame 5. This extension takes place in particular from one inside of the frame 5 to the other inside of the frame 5. According to the Representation of Figure 7, the motor unit 12 of three units, which are pulled apart and mapped in a non-assembled state. The motor unit 12 according to FIG. 7 essentially comprises the electric motor 3 a, the flexible shafts 10, 10 ', a coupling 10 a, 10 a' at a respective free end of the respective flexible shaft 10, 10 'and a housing in the form of a tube , The housing has two end regions, which are each formed as a connecting sections 12a, 12a ", which correspond to connecting sections 12a ', 12a'" of the respective housing of the respective screw spindle 6, 6 ' has at least one connecting portion 12a, 12a ', 12a ", 12a'" via an electrical plug connection consisting of plug and the counterpart corresponding thereto, for example in the form of a

Socket or as spring tongues. 8 shows a furniture drive 3 of a fourth or alternative embodiment in side view, which as shown formed as a so-called single-motor single drive and with a C-shaped closure member 14 of an output opening 15, in which a component of the slatted base 2 or a function fitting 4 with the Pivoting lever 7, 7 ', 7 ", 7"', 7 "" for cooperation with the output member 8, 8 ', 8 ", 8"' can be used is provided. A Spindelhubgewinde 6, 6 ', which is operated by the electric motor 3a and the output member 8, 8', 8 ", 8" ', is not shown here in detail.

Figures 9 and 10 differ from all other figures and their descriptions essentially in that the output member 8 of the screw spindle 6 is indirectly in operative connection with the pivot lever. All other features mentioned above of the previous figures, as well as features of the following figures are also realized here and are not listed separately

Figures 9 and 10 show a variant of the fourth embodiment of the furniture drive 3, in particular according to Figure 8 or one or more of the other figures, in two end positions, in Figure 9 is shown a starting position and in Figure 10 an extended position. The initial position can also be understood as explained in more detail as the basic position in which all supporting surfaces of the furniture 1 and the slatted base 2 are in a plane and all support parts such as back part 2b and leg part 2c are completely moved down. Figures 9 and 10 each show a sectional view of a furniture drive 3 with a Spindelhubgewinde 6 and a linear output member 8, which acts on at least one coupling member 17, for example a ball. The coupling members 17 are here in a guide contour 16a of a housing 16 of the furniture drive 3 between the output member 8 and a pressure piece 7a of the pivoting lever

7 movably guided. In a manner not shown, an already described above Spindelhubgewinde 6 is also provided here, which the output member

8 moves linearly. In an inventive way hereby the height H of the housing 16 is thereby reduced, that the articulation and adjustment lever or pivot lever 7, which forms a common output element of the swing furniture drive 3, is arranged obliquely against the statements of the prior art in the basic position. Arrangements of the prior art have either short pivot lever 7, resulting in very high adjustment forces of the screw spindle screw, or longer pivoting levers, which protrude down on. Here is a long pivoting lever 7 application, wherein the low adjustment forces of the Spindelhubgewindes 6 can be used to generate a high torque of more than 450Nm on Verschwenkhebel 7 by Kopel pelglieder 17 in the form of deflection or in the manner of a push chain for the transmission of Compressive forces are provided.

As can be seen in FIGS. 9 and 10, the linearly displaceable output member 8 moves horizontally, while the free end of the pivoting lever 7 moves in a circular path with a substantially vertical chord. Furthermore, the guide contour 16a may be formed as a channel-like recess in the housing 16 of the electromotive furniture drive 3. Alternatively, the guide contour 16a is raised. The coupling members 17 may be formed as balls or rollers, which are guided individually and loosely by the guide contour 16a. Alternatively, the coupling links 17 are interconnected to form a chain. Furthermore, they may be elongated in section and may be concave and / or convex in the respective end region. In the case of the one end portion which is concave, the other end portion is convex. In the event that both end regions are concave or convex, a coupling element (not shown in more detail) is provided between such coupling members 17, which coupling element is designed to correspond to the respective concave or convex end region in order to link them together. The coupling members 17 shown in Figures 9 and 10 are in frictional engagement with the guide contour. Alternatively coupling links 17 are provided, which are rotatably mounted relative to each other and roll or roll along the guide contour 16a. Advantageously, such coupling members 17 are connected to each other in the manner of a chain.

The figure 1 1 differs from all other figures and their descriptions essentially in the fact that two individual furniture drives 3 are connected to each other in a first special way. All the other features mentioned above of the previous figures, as well as features of the following figures are also realized here and are not listed separately.

1 1 shows two furniture drives 3, each with an electric motor 3a in side view of a fifth embodiment, which are connected by means of a connecting element 18 with each other. In a preferred embodiment, the connecting element 18 is designed as a rigid profile and inserted lengthwise into both housing 16 of the furniture drives 3. In an inventive manner, the connecting element 18 can be cut to the desired length, so that in the simplest way any desired center distance of the pivot shafts 19 of the pivot axes can be generated.

In this case, the connecting element 18 is inserted into a respective recess of the respective furniture drive 3. The fixation is done by a clamping mechanism, not shown, alternatively by a clamping screw. Another fixation by clamping can be done with the assembly of the furniture drives 3 together with the connecting element 18 when the housing 16 of each furniture drive 3 when screwing together the housing parts of the housing 16, the connecting element 18 firmly clamped. Other fixations may be formed by a latching mechanism, which is not shown here. Furthermore, the insertion depth of the connecting element 18 into each furniture drive 3 is at least twice the height of the connecting element 18.

Furthermore, FIG. 11 shows fork-like U-shaped closure elements 14 which, however, can be fixedly connected to the respective housing 16 in a rotatable manner for locking the pivot shaft 19.

The figure 12 differs from all other figures and their descriptions essentially in the fact that two individual furniture drives 3 are connected to each other in a further special way. All other Named features of the previous figures, as well as features of the following figures are also realized here and are not listed separately. FIG. 12 shows, in an alternative manner, a connection unit 20 of two furniture drives 3 of a sixth or a further exemplary embodiment. The connection unit 20 is designed as a multipart connection unit 20. Here, it comprises two shell halves 20a, each with a plate 20c, whose upper edges and lower edges are each provided with mutually parallel retaining surfaces 20d, which extend at right angles to the plate 20c. The inner sides of the holding surfaces 20d are provided with opposite holding portions 20b, and in Fig. 12, the lower holding surfaces 20d have ribs 20e for increasing the stability between the holding portions 20b. The holding portions 20b of the connecting units 20 here comprise a number of webs 200, which are mounted transversely to the longitudinal direction of the plates 20c on the inner sides of the holding surfaces 20d. Each web 200 carries on its free side a crosspiece 201, which extends over the entire web length. The web 200 and the cross bar 201 form of their shape a kind of T-beam for T-slot joints. The webs 200 are arranged parallel to each other and define a gap 202 between them each.

At the opposite end portions of the housing 16 are also on the top and bottom of the housing 16 also holding portions 20 b 'formed, which correspond in shape to the holding portions 20 of the connecting units 20. Thus, the holding portions 20b 'of the housing 16 each comprise molded webs 210 with transverse webs 21 1. The webs 210 extend parallel to each other across a longitudinal direction of the respective housing 16 and define therebetween T-shaped interstices 212, e.g. those for T-slot joints.

To connect the housing 16 with each other now both shell halves 20a are plugged from both longitudinal sides of the housing 16 parallel to the central longitudinal axis of the pivot axes 19a on the respective housing 16 of the respective furniture drive 3 positive fit. In this case, the holding sections 20b come into positive engagement with the holding sections 20b 'of the respective housing 16 which correspond with them. In this case, the webs 200 of the connection unit 20 are received with the transverse webs 201 in the T-shaped spaces 212, and the webs 210 of the housing 16 with the transverse webs 21 1 are arranged in the intermediate spaces 202.

The housing 16 of the furniture drives 3 and the connection unit 20 are formed from a plastic. Of course, combinations of different materials may be possible. Here, the power is transmitted from the housing 16 of the furniture drive 3 to the connection unit 20 by the positive connection of the holding portions 20b 'of the housing 16 and the holding portions 20b of the connection unit 20 and vice versa.

The holding portions 20b of the connecting unit 20 and the holding portions 20b 'of the housing 16 are after mounting in positive connection with each other. They are designed in the manner of a toothing, but may also have other geometries. As a result, the housing 3 can be connected very easily and at the same time very robust. The toothing is designed in the manner of a hook toothing, alternatively according to the type of T-slot toothing and, alternatively, similar to a dovetail joint. The resulting after the assembly of the furniture drives 3 with the connection unit 20 unit can absorb the resulting bending forces in the operating state of regular operation by this special connection teeth. The bending forces are due to the output torque of the pivoting waves, which are mounted pivoting about the respective pivot axis 19 a.

It should be mentioned a difference between the embodiments of Figure 11 and Figure 12. While according to Figure 1 1, the furniture drives 3 connecting

Element in the form of the connecting element 18, the connection forces on the inside, so on the pockets, the housing of the furniture drives 3 transmits, according to Figure 12 by the furniture drives 3 connecting element in the form of the connection unit 20, the connection forces on the outside of the housing of the furniture drives transfer.

There may be mentioned further characteristics of the connection unit 20, in particular if it is produced as a plastic injection molded part. The connection unit 20 has a fixed overall length. Since it is very simple, and the holding portions 20 b are always formed consistently, the production of injection molds other connecting units 20 with a different length is very simple. It is then possible, while maintaining identical furniture drives 3, to generate individual center distances of the pivot axes 19a if the corresponding overall length of the connection unit 20 is used. Furthermore, the connection unit 20 is formed like a shell and forms a kind of envelope housing after installation. In addition, electrical components such as mains-operated power supplies, radio receivers, relay controls and others can be arranged inside this enveloping enclosure, which is not shown but conceivable in the illustration of FIG. For receiving and connecting such electrical components, the connection unit 20 on the inside supports for this, as well as openings in the outer wall for passing cables and / or plug connections. In any case, the electrical component used in each case remain the furniture drives 3 unchanged.

FIG. 13 can be regarded as an alternative to the embodiment according to FIGS. 6 and 7. In contrast, FIG. 14 differs, as will be described in more detail, and can be understood as an alternative to one of the embodiments of FIGS. 8 to 12. All other features mentioned above of the previous figures, as well as features of the following figures are also realized here and are not listed separately.

FIG. 13 shows a further exemplary embodiment of a functional fitting 4 according to the third or a further exemplary embodiment of the electromotive furniture drive 3 according to FIGS. 6 and 7 as a preassembled unit with a two-motor furniture drive 3. The functional fitting 4 is intended for use in a piece of furniture 1. The furniture 1 is without the unit shown as a whole an independent unit and in principle in its basic position available.

Furniture drive 3 and functional fitting 4 here form a kind of compact unit, because output lever 40 of the function fitting 4, which are at least coupled to the back part 2b and the leg part 2c, are connected to the housing of the furniture drive 3, or are hinged thereto and this compact unit of furniture drive 3 and functional fitting 4 forms a functional system and is formed connectable to the furniture 1. Typically, the connection with the furniture 1 takes place in each case on the inside of the frame 5 (see FIG. 1).

In a manner not shown in detail, the connecting tubes as the motor unit 12 each have an electric motor 3 a and are designed to be freely cut lengthwise, so that the preassembled unit can be adapted very simply for different widths of a piece of furniture 1. It is also conceivable that a joint Sames connecting pipe is provided as a motor unit 12 with two or more electric motors 3a. It may then be an oval-shaped tube, seen in cross-section, extending at least along the length of the motors. Of course, other cross sections are possible.

Here, the drive units 21, 21 'can be seen clearly, which are already described above in connection with FIGS. 5 and 6. The Spindelhubgewinde 6, 6 ', 6 ", 6"', 6a, 6b are received in a manner not shown by the housing of the drive unit 21, 21 '. On the outer sides of the drive units 21, 21 'is in each case a mounting unit 22, 22' attached for attachment of a frame 5 or slatted frame 2. Alternatively, the mounting unit 22, 22 'in each case forms an integral molded part with the housing of the drive unit 21, 21'. In this case, the height of the mounting unit 22, 22 'extends from the lower edge of the furniture 1 or the slatted frame 2 up to the nearest structural limit of the furniture 1 or the slatted frame 2, which for example by the bearings and recordings the spring woods or other support elements for receiving a padding or a mattress are defined. The overall height of the respective mounting unit 22, 22 'is less than the overall height of the respective drive unit 21, 21'. Furthermore, a plurality of assembly units 22, 22 'per drive unit 21, 21' can be used. The assembly unit 22, 22 'also has the task of arranging the respective drive unit 21, 21' at a distance from the frame and transmitting the supporting forces from the housing of the drive unit 21, 21 'to the frame 5. A further embodiment of a functional fitting 4 according to the sixth or according to a further embodiment of the electromotive furniture drive 3 in particular according to Figure 12 is shown in Figure 14. Another preassembled unit consists of a twin-engine furniture drive 3 in a housing 16 with pivot shafts 19, which on the outside a polygonal tube 19b, as shown a square. It is also possible that the pivot shafts 19 themselves have a polygonal cross section without wrapping through a pipe. Further, they may have a portion which is formed in the manner of an outside polygon. Alternatively, the pivot shaft is provided on the outside with a protruding driver.

The respective output member as the output lever 40 of the furniture drive 3 is pivotally mounted to the housing 16 according to this embodiment and has an inner profile, which corresponds to the outside profile of the pivot shaft 19 and the polygonal tube 19b circumferentially form-fitting and thus in a rotationally fixed connection stands with it. The bearing of the pivot shaft 19 and the polygonal tube 19b is effected by bearing plates 19c, which are arranged rotatably mounted at the respective free end of the pivot shaft 19 and the polygonal tube 19b. The bearing plates 19c themselves are connected to the frame 5 of the furniture 1 and the slatted base 2, which is not shown here for the sake of simplicity.

In a manner not shown in more detail, the pivot shafts are freely cut to length, so that the preassembled unit can be adapted very simply for different widths of a piece of furniture 1.

FIGS. 15 and 16 can also be understood as an alternative or also as a further development, in particular according to the feature of a furniture drive 3, with an outside edge as already described above in FIG. All other features mentioned above of the previous figures, as well as features of the following figures are also realized here and are not listed separately.

Figures 15 and 16 show a furniture drive 3 in a sectional view after a seventh or according to a further embodiment of the side in two end positions. Shown is a Spindelhubgewinde 6 with a linear output member 8, which acts on a connecting rod 23 which is articulated to the free end of an articulation lever 24 in a pivot axis 24a. The connecting rod 23 acts here as a deflecting element. It can also be designed as a coupling member 17. Further, according to this embodiment, the linkage lever 24 is a part of the furniture drive 3 and has a pocket 25 for coupling the pivot shaft 19. For this purpose, the pivot shaft 19 has a driver 26, which is formed coupled to the pocket 25. As shown, the cross section of the pivot shaft 19 is circular. The driver 26 is rotatably connected to the pivot shaft 19 and formed elongated. Another driver not shown in detail 26 is formed short and as a projecting driver 26 as already mentioned in Figure 14 and fixed to the pivot shaft 19 is firmly connected. According to the illustrations of Figures 15 and 16 are to illustrate the arrangement of

Swivel shaft 19 and driver 26 this again separately located next to the furniture drive 3. From Figure 16, in addition, the assembly of the pivot shaft 19 with the furniture drive is apparent. When the furniture drive 3 according to FIG. 16 is in a basic position, which here is used as an assembly ment is called, the pivot shaft 19 can be mounted together with driver 26 on the furniture drive 3 and disassembled from it. For this purpose, furniture drive 3 and pivot shaft 19 move relative to each other and that in the radial direction of the pivot shaft 19, which is defined at right angles to the central longitudinal axis of the pivot shaft 19. For secure fixing of the pivot shaft 19 on the furniture drive 3 or on the linkage lever 24 against unwanted dismantling securing means are still provided, which will not be explained here. Such securing means may be formed, for example, by a closure element 14 according to FIGS. 8 to 11 or a closure element 16d according to FIG. 17. Further, the pivot lever 7 may be formed as described here in FIGS 9 and 10 as an articulated lever 24 when it forms a part of the functional system of the preassembled furniture drive 3 with the furniture drive 3. FIGS. 17-19 show an eighth or a further embodiment of a

Furniture drive 3 in side view, partly in sectional view, and a

Swivel lever 7 in a non-mounted as well as in a mounted position. All other features mentioned above of the previous figures, as well as features of the following figures are also realized here in Figures 17 to 19 and are not listed separately. It is the

An articulated lever 24 and the pivot lever 7 integral part of the function fitting 4 and has a pivot axis 19a, which is mounted in a recess as the output opening 15 of the furniture drive 3 fixed but pivotally. Furthermore, the free end of the pivot lever 7 has a pressure piece 7a. In this embodiment, the pressure piece 7a is formed as a round body axially parallel to the pivot axis 19a.

The width of the pressure piece 7a in the direction of the pivot axis 19a is greater than a width of the pivot lever 7 in the direction of the pivot axis 19a, so that the pressure piece 7a protrudes at least on one side of the pivot lever 7 in the direction of the pivot axis 19a. The linear adjusting element as a drive member 8 of the screw spindle 6 acts on the pressure piece 7a, so that a torque is produced by the eccentric force on the pivot axis 19a, which is transmitted here in a manner not shown on the functional fitting 4. The functional fitting 4 is in mechanical

Operative connection with the pivot shaft 19.

The special feature of this embodiment is that the pressure piece 7a lengthwise (ie in the direction of the pivot axis 19a) in a circular arc Schiit- zen / bags or Verschwenkkonturen 16c of the housing 16 is guided, wherein the center of each arc of the Verschwenkkonturen 16c lies in the central longitudinal axis of the pivot axis 19a. In an inventive manner, the pivot lever 7 is necessarily guided within the housing 16 such that a Verschlusselennent 14 and 16d can be omitted, which rotatably fixes the pivot axis 19 in the recess 15 of the housing 16. The guide of the pressure piece 7a in the housing takes place by the above-mentioned lateral projection of the pressure piece 7a is guided in the circular arc-shaped pocket 16c, as explained in more detail in the following figures 18 and 19.

Here, in a variant, the closure element 16d is shown. FIG. 17 shows the closure element 14 in an unassembled position above the furniture drive 3. The closure element 14 here has a bifurcated design with an opening and is thus placed on the pivot shaft 19 mounted on the furniture drive 3. As shown in FIG. 17, the fork-shaped opening of the closure element 14 points in the direction of the furniture drive 3. Finally, the closure element 14 is wound around the central longitudinal axis of the housing

Pivot shaft, that is rotated about the pivot axis 19a. For this purpose, the closure element 14 has a first form-fitting contour, which runs concentrically to the pivot axis 19a. The housing 16 of the furniture drive 3 has in the region of the output opening 15 on a second form-fitting contour, which is also concentric with the pivot axis 19a, when the pivot shaft 19 is located on the furniture drive 3 in the mounting position. After rotation of the closure element 14, the first and the second form-fitting contours interlock positively, so that a positive connection between the closure element 14 and the housing 16 of the furniture drive 3 is formed.

FIG. 18 shows an open housing 16 of the furniture drives 3, so that the view into the interior is possible. In the further embodiment, a rectilinear introduction contour 16b is still provided, which opens into the pivoting contour 16c. The contours 16b and 16c are arranged in the housing 16, which is divided in the longitudinal direction of two halves, in each half opposite.

As already described, the lateral projection of the pressure element 7a is guided in the introduction contour 16b and in the pivoting contour 16c. The guide along the introduction contour 16b takes place exclusively during assembly or during disassembly of the pivot shaft 19 together with pivoting lever 7 or articulation lever 24. Inn operating state of the regular operation or in the operating state of readiness for regular operation is the pressure piece 7a in the pivoting contour 16c. To ensure that the pressure piece 7a always remains in the pivoting contour 16c in the operating state of regular operation, another embodiment provides another closure element 16d, which is designed to be insertable into the introduction contour 16b and can be mechanically fixed. The introduction of the further closure element 16d takes place either along the introduction contour 16b or at right angles to it coming from the side of the outer wall of the housing 16. Alternatively, the further closure element 16d is movably mounted on the housing 16 and can be moved from a first release position to a second locking position. In the right-hand half of FIG. 18, the further closure element 16d is brought into the blocking position. As a result, a closed channel-like pivoting contour 16c is given.

Figure 19 also shows the pivot shaft 19 and the pivot lever 7 and the linkage lever 24 with attached pressure piece 7a in the mounted position according to the operating state of the regular operation. There are two end positions of the pivot lever 7 and the Anlenkhebels 24 can be seen.

In another embodiment, no introduction contour 16b is provided, the pivot lever 7 is a part of the furniture drive 3 and along the central longitudinal axis of the pivot axis 19a has a profile bore for receiving a formed as a pivot shaft 19 profile shaft. The profile bore may be formed as a square (see, for example, Figure 12 and 14). Then, the lateral projection of the pressure piece 7a can be exclusively associated with the pivoting contour 16c. The housing 16 also has no drive opening 15. Closure elements 14, 16d can likewise be saved here. As a result, a very compact design of a furniture drive is formed, being involved in a mounting step of the pivot lever 7 with attached pressure piece 7a, as explained in more detail below, as a component in the assembly process, before the housing 16 of the furniture drive 3 is closed and mounted together. In another embodiment, instead of the profiled bore, the pivot lever 7 may have a pocket which is designed to be coupled to a driver of the pivot shaft 19 (similar to FIGS. 15-16). FIG. 20 shows a ninth or further exemplary embodiment of the electromotive furniture drive 3 in a plan view of an open drive housing 3b. All other features mentioned above of the previous figures are also realized here and are not listed separately.

An electric motor 3a is provided for adjusting both the back part 2b and the leg part 2c of the furniture 1 (bed or slatted frame 2) (see FIG. 1). This adjusts the electric motor 3a a plurality of furniture components 2b, 2c, which are coupled to the electromotive furniture drive 3. This is indicated in Figure 20 by the reference numerals 2b and 2c. For this purpose, a plurality of screw strokes 6a, 6b are provided.

In one embodiment, a gear wheel 27, which is connected downstream of the electric motor 3a, is connected to two threaded spindles 28, which have opposite pitch directions and have a common axis of rotation with the gear wheel 27. The gear wheel 27 is formed in one embodiment as a worm wheel. In one embodiment, a threaded spindle 28 is coupled to the gear wheel 27 on both sides. Analogous to the aforementioned embodiments, the gear 27 and the worm wheel 1 1 b, 1 1 b 'with two Spindelhubgewinden 6a, 6b coupled.

In one embodiment, the threaded spindles 28 are rotatably mounted in a stationary bearing. In this case, a nut 29 is placed on the threads of each spindle. Each nut 29 is non-rotatable, but designed to be displaceable lengthwise and guided in the housing 16 of the furniture drive 3. Each nut 29 acts directly or via intermediate links 29a on an adjusting lever or pivot lever 7 "" 7 "", which is coupled to the associated furniture component 2b, 2c and / or to a furniture component 2b, 2c to be adjusted Rear leg nut 29b communicates with the furniture component for adjusting back portion 2b A leg nut 29c communicates with the furniture component of leg portion (and foot portion) 2c In one embodiment, back portion nut 29b acts directly on back portion 2b of furniture 1 and Leg part nut 29c via an intermediate member 29a on the leg part 2c of the furniture. 1

In operation of the motor 3a, the back nut 29b and the leg nut 29c move in opposite directions to each other. In the basic position of the furniture 1, when all the furniture components 2b, 2c by gravity back into the starting 10 mm to 50 mm between the leg part nut 29b and intermediate member 29a, while a distance between the back part nut 29b and its associated adjusting or pivoting lever 7 "'is only slight FIG. 20 illustrates this basic position.

When the motor 3a is operated in the first direction of rotation for adjusting the connected furniture components 2b, 2c from the basic position, initially only the back and head part 2b is adjusted until the adjustment distance between the leg part nut 29c and the intermediate member 29a becomes zero has reduced, which causes then also the leg-foot part 2c is additionally adjusted by the Beinteilmutter 29c and by the intermediate member 29a.

In an operation of the motor 3a in the second adjustment direction for adjusting the connected furniture components 2b, 2c from the basic position out coupling slide 30 are also provided, which are arranged displaceably mounted between the back part nut 29b and the intermediate member 29a.

In this second rotational direction of the motor 3a, the back part nut 29b moves in the direction of the leg part nut 29c, actuates the coupling slide 30, which transfers the adjusting force generated by the back part nut 29b on the intermediate member 29a, which causes only the leg and foot part 2c adjusted as a furniture component becomes. In other words, in this second rotational direction of the motor 3a, the back part nut 29b actuates only the leg and foot part 2c via the intermediary members consisting of the intermediate member

29a and coupling slide 30. For this purpose, guide means such as webs or recesses for displaceably guiding the coupling slide 30 are provided in the housing. It can e.g. two opposing coupling slide 30 may be arranged, here only one is shown. In principle, all coupling slide 30 are arranged around the Mit- longitudinal axis of the threaded spindle 28, alternatively arranged in a circular symmetry, in order to transfer forces optimally distributed between the back part of mother 29b on the intermediate member 29a.

In one embodiment, the coupling slide 30 is designed in several parts. A coupling slide 30 may be rod-shaped. A coupling slide 30 may be formed spatially shaped. A coupling slide 30 may be designed in several parts and consist of a number of components in the manner of an assembly. Likewise, the intermediate member 29a may be composed of a number of components to form an assembly together. According to FIG. 20, the motor 3a is connected, for example, directly to the housing 16 of the furniture drive 3. Alternative connection and coupling forms can be found, for example, in Figures 6, 7 and 13 again, when a flexible shaft 10, 10 'as a rotary transmission shaft with the motor shaft and with a

Screw 1 1 a, 1 1 a 'rotatably connected, in which case only the screw 1 1 a, 1 1 a' is mounted in the housing of the furniture drive 3 and is in drive connection with the gear 27. 20, the pivoting levers 7 "', 7" "are pivotally mounted on the housing 16 of the furniture drive 3. Other embodiments of a bearing or receiving a pivoting lever 7 or an articulating lever 24 of the aforementioned figures can also be realized here The embodiment according to FIG. 20 is not limited to the illustrated and mentioned embodiment of an arrangement and mounting of the pivoting lever 7 "', 7" ". Alternatively, the pivot lever 7 "', 7" "fixed with a

Pivot shaft 19, a polygonal tube 19b or a furniture component 2b, 2c be connected, or alternatively be mechanically coupled. Rather, the features and alternatives of the previous figures should be realized here and are not listed separately.

The aforementioned figures show detailed representations. The present invention also includes combinations of individual detail views.

The invention is not limited by the embodiments described above, but is modifiable within the scope of the appended claims.

LIST OF REFERENCE NUMBERS

1 furniture

2 slatted frame

2a seat part

2b back part

2c leg part

2d neck support

2e hinge

2f back part axis

2g leg part axle

3 furniture drive

3a electric motor

3b drive housing

4 functional fitting

4a coupling member

5 frames

6, 6 ', 6 ", 6'", 6a, 6b spindle lifting thread

7, 7 ', 7 ", 7' pivot lever

7a pressure piece

8, 8 ', 8 ", 8' output member

9 thigh part

9a lower leg part

9b knee joint

10, 10 'Flexible shaft

10a, 10a 'coupling

1 1, 1 1 'worm gear

1 1 a, 1 1 a 'screw

1 1 b, 1 1 b 'worm wheel

1 1 c, 1 1 c 'worm clutch

12 motor unit

12a, 12a ', 12a ", 12a'" connecting portion

13 slatted frame unit

13a, 13a ', 13a ", 13a'" connecting section

14 closure element

15 output opening

16 housing

16a guide contour

16b introduction contour c pivoting contour locking element

coupling member

Verbindungselennent

Schwenkwellea Schwenkachseb Mehrkantrohrc end shield

Connection unit shell half b, 20b 'holding portion c plate

d retaining surfaces rib

, 21 'drive unit, 22' mounting unit

pleuel

Anlenkhebela pivot axis

bag

takeaway

Pinion

screw

mother

a intermediate link back section nut leg nut

coupling slide

output lever

boom connector

height

Claims

Expectations

Furniture drive (3) for a piece of furniture (1), in particular seating and reclining furniture such as armchairs, beds and slatted frames (2), having at least one electric motor (3a) and a spindle lifting thread (6, 6', 6", 6"', 6a , 6b) for adjusting support surfaces of upholstery or a mattress of the furniture (1) relative to one another and/or to fixed components of the furniture (1),

characterized,

that the furniture drive (3) is designed with a functional fitting (4) and can be inserted into the silhouette or contour and/or a frame (5) of the furniture (1) to be assigned.

Furniture drive (3) according to claim 1, characterized in

that components of the functional fitting (4) and / or parts of the furniture drive (3) as furniture components of a piece of furniture (1) to be assigned or at least in sections as furniture components of a piece of furniture to be assigned

(2) are formed, wherein the furniture components and/or the functional fitting (4) and/or the furniture drive (3) are assembled into a structural unit during manufacture.

Furniture drive (3) according to claim 1, characterized in

that parts of the functional fitting (4) and/or the furniture drive (3) are designed to be mountable for attachment to a piece of furniture (1) to be assigned or to a furniture component of the piece of furniture (1) to be assigned, the furniture (1) to be assigned being independent of the functional fitting (4 ) and/or can be used and designed as a whole unit independently of the furniture drive (3).

Furniture drive

(3) according to one or more of the preceding claims, wherein the functional fitting

(4) has a back part (2b) which can be pivoted about a back part axis (2f) and has a neck support (2d) movably attached to it by means of a hinge (2e) and/or a leg or foot part (2c) which can be swiveled about a leg part axis (2g). , wherein the back part (2b) and the leg or foot part (2c) are each coupled to a pivoting lever (7, 7"), characterized in that each

Pivoting lever (7, 7") interacts with one output member (8, 8") of the furniture drive (3).

5. Furniture drive (3) according to claim 4, characterized in that the neck support (2d) is coupled to a further pivot lever (7 ').

6. Furniture drive (3) according to claim 5, characterized in that a

The pivot point of the further pivot lever (7 ') of the neck support (2d) has the same pivot point as the pivot lever (7) coupled to the back part (2b) in the back part axis (2f), and the two

Pivoting levers (7, 7 ') are arranged offset from one another at an angle about the back part axis (2f) and interact with a common output member (8) of the spindle lifting thread (6) of the furniture drive (3).

6. Furniture drive (3) according to claim 5, characterized in that the neck support (2d) is coupled to a further pivoting lever (7'), a pivot point of the further pivoting lever (7') in the back part axis (2f) having the same pivot point as the one coupled to the back part (2b).

Has pivoting lever (7), and wherein the two pivoting levers (7, 7 ') each interact with one of two stepwise offset contact surfaces of a common output member (8) of the spindle lifting thread (6) of the furniture drive (3).

7. Furniture drive (3) according to claim 4, characterized in that the neck support (2d) is guided eccentrically around the hinge (2e) by means of a coupling member (4a), an output end of the coupling member (4a) being coupled to the hinge (2e). is, and wherein the other end of the coupling member (4a) is articulated to a non-movable part of the furniture (1) or to a non-movable part of the furniture drive (3).

8. Furniture drive (3) according to one or more of claims 4 to 7, characterized in that the spindle lifting thread (6, 6 ') for adjusting the back part (2b) and the spindle lifting thread (6", 6"') for adjusting the leg part (2c) are designed as individual drives, with a spindle lifting thread (6, 6 ', 6", 6"') with the associated motor being arranged in a separate housing.

9. Furniture drive (3) according to one or more of claims 4 to 8, characterized in that two spindle lifting threads (6", 6"') are provided on the leg part side and two spindle lifting threads (6, 6') on the back part side, with the side area of the furniture ( 1) each has a spindle lifting drive (6, 6') for the Headboard area / backboard area and a spindle lift drive (6", 6"') are provided on each side for the footboard area.

10. Furniture drive (3) according to one or more of claims 4 to 9, characterized in that the housing of each spindle lifting thread (6, 6 ', 6", 6"') with a connection which acts as a spar receptacle (70) for receiving a furniture component or a section of a furniture component is designed for attachment to the furniture component.

1 1 . Furniture drive (3) according to claim 10, characterized in that at least one pivoting lever (7', 7") is provided with a rail holder (70).

12. Furniture drive (3) according to claim 10 or 1 1, characterized in that the spar receptacle (70) is pivotally mounted on the housings of the spindle lifting thread (6, 6 ', 6", 6"').

13. Furniture drive (3) according to claim 10 or 1 1, characterized in that the rail holder (70) has two sections, one section being designed as a pivoting lever (7 ', 7") or as a pivoting lever (7', 7") acts, with the other section of the spar holder (70) acting as

Holmen holder (70) is designed itself.

14. Furniture drive (3) according to one or more of claims 10 to 13, characterized in that the housings of all spindle lifting threads (6, 6 ', 6", 6"') each form a bar member (70), and that on each housing two spar receptacles (70) are arranged pivotably.

15. Furniture drive (3) according to claim 1 or 2, characterized in that at least one electric motor (3a) is arranged in a motor unit (12) of the furniture drive (3), the motor unit (12) being provided with a slatted frame unit (13) and is connected to at least two spindle lifting threads (6, 6 '), the motor unit (12) extending within the frame (5) from one inside of the frame (5) to the other inside of the frame (5), and one in each case the at least two spindle lifting threads (6, 6') are arranged on an inside of a longitudinal member of the frame (5) and/or in a longitudinal member of the frame (5).

16. Furniture drive (3) according to claim 15, characterized in that the at least one electric motor (3a) has two drive shafts (3b, 3b'), which carry out rotational movements of the electric motor (3a) via a flexible shaft (10, 10'). each transmits a worm (1 1 a, 1 1 a') of a worm gear (1 1, 1 1 ') of a respective spindle lifting thread (6, 6').

17. Furniture drive (3) according to claim 16, characterized in that the electric motor (3a) of the motor unit (12) is arranged in a tube or a tube which extends in the transverse direction of the slatted frame (2), and where a respective end of the tube is firmly attached to a housing of the spindle lifting thread (6, 6 ').

18. Furniture drive (3) according to claim 16, characterized in that the electric motor (3a) of the motor unit (12) is arranged in a tube or a tube which extends in the transverse direction of the slatted frame (2), and wherein a respective end of the tube and a respective long side of the slatted frame (2) can be releasably attached to a housing of the spindle lifting thread (6, 6 '), and wherein a respective end of the flexible shafts (10, 10') is each on one Worm (1 1 a, 1 1 a') of a worm gear (1 1, 1 1 ') of a respective spindle lifting thread

(6, 6') can be releasably connected again.

19. Furniture drive (3) according to one or more of claims 1 to 3, having at least one output opening (15), into which a pivoting lever (7, 7 ', 7", 7"', 7"") for interaction with the output member (8, 8', 8", 8"') can be used, characterized in that a C-shaped closure element (14) is provided for closing the output opening (15).

20. Furniture drive (3) according to one or more of claims 1 to 3, characterized in that a linear output member (8) of the spindle lifting thread (6) is indirectly operatively connected to the pivot lever (7) through at least one coupling member (17). .

21. Furniture drive (3) according to claim 20, characterized in that the at least one coupling member (17) in a guide contour (16a) of a housing (16) of the furniture drive (3) between the output member (8) and a pressure piece (7a) of the pivoting lever ( 7) is movably guided.

22. Furniture drive (3) according to claim 21, characterized in that the guide contour (16a) of the housing (16) of the furniture drive (3) is formed as a channel-like recess in the housing (16) and/or is formed as raised.

23. Furniture drive (3) according to one or more of claims 20 to 22, characterized in that the coupling members (17) are designed as balls and/or rollers.

24. Furniture drive (3) according to claim 21, characterized in that the

Coupling links (17) are connected to each other to form a chain.

25. Furniture drive (3) according to one or more of claims 1 to 3, characterized in that two furniture drives (3), each with a housing (16) and each with an electric motor (3a), are connected to one another by a connecting means.

26. Furniture drive (3) according to claim 25, characterized in that the connecting means is a connecting element (18), which is designed as a rigid profile and is inserted lengthways with one end into one of the two housings (16) of the furniture drives (3). and is firmly connected to each of them.

27. Furniture drive (3) according to claim 26, characterized in that the connecting element (18) is formed from a cut-to-length, rigid profile.

28. Furniture drive (3) according to one or more of claims 25 to 27, having at least one output opening (15), into which a pivot shaft (19) with a pivot lever (7, 7 ', 7", 7"', 7"" ) can be used to interact with the output member (8, 8', 8", 8"'), characterized in that a U-shaped closure element (14) is provided for closing the output opening (15) by rotation.

29. Furniture drive (3) according to claim 25, characterized in that the connecting means is designed as a multi-part, shell-shaped connecting unit (20).

30. Furniture drive (3) according to claim 29, characterized in that the multi-part connecting unit (20) comprises at least two shells (20a), which are provided with holding sections (20b) which have corresponding holding sections (20b ') on the housings (16) of the furniture drives

(3) can be brought into engagement.

31. Furniture drive (3) according to claim 30, characterized in that the holding sections (20b, 20b') are designed in the manner of a toothing, for example T-slots and/or a dovetail connection.

32. Furniture drive (3) according to claim 30 or 31, characterized in that the at least two shells (20a) of the multi-part connecting unit (20) from both long sides of the housing (16) parallel to pivot axes (19a) on the respective housing (16 ) of the respective furniture drive (3) are inserted in a form-fitting manner, the holding sections (20b) of the shells (20a) being in form-fitting engagement with the holding sections (20b') of the respective housing (16) corresponding to them.

33. Furniture drive (3) according to one or more of claims 30 to 32, characterized in that the connecting unit 20 is manufactured as a plastic injection molded part.

34. Furniture drive (3) according to one or more of claims 1 to 3, characterized in that a linear output member (8) of a spindle lifting thread (6) interacts with a connecting rod (23), the connecting rod (23) being connected to the free end of a linkage lever (24) is articulated in a pivot axis (24a).

35. Furniture drive (3) according to claim 34, characterized in that the articulation lever (24) has a pocket (25) for coupling a pivot shaft (19) of the functional fitting (4), with a driver (26) of the pivot shaft (19). the pocket (25) is designed to be connectable.

36. Furniture drive (3) according to one or more of claims 1 to 3 or according to claim 19, characterized in that a linkage lever (24) or the pivot lever (7) is an integral part of the functional fitting

(4) and has a pivot axis (19a), which is mounted firmly but pivotably in a recess as an output opening (15) of the furniture drive (3), the free end of the pivot lever (7) being a pressure piece (7a). which is designed as a round body axially parallel to the pivot axis (19a).

37. Furniture drive (3) according to claim 36, characterized in that a width of the pressure piece (7a) in the direction of the pivot axis (19a) is greater than a width of the pivot lever (7) in the direction of the pivot axis (19a), the pressure piece ( 7a) is guided in circular arc-shaped slots/pockets or pivoting contours (16c) of a housing (16) of the furniture drive (3).

38. Furniture drive (3) according to claim 37, characterized in that an insertion contour (16b) opens from the output opening (15) of the housing (16) into the guide contour (16c), with a further closure element

(16d) is provided for closing one end of the insertion contour (16b) before the junction of the insertion contour (16b) into the guide contour (16c).

39. Furniture drive (3) according to one or more of claims 36 to 38, characterized in that the closure element (14) has a first positive locking contour concentric to the pivot axis (19a), in the closed state of the output opening (15) around a pivot shaft inserted in the assembly position (19) engages and is twisted around the inserted swivel shaft (19) to secure the swivel shaft (19) in place.

40. Furniture drive (3) according to claim 39, characterized in that the housing (16) of the furniture drive (3) in the area of the output opening (15) has a second positive contour, which also runs concentrically to the pivot axis (19a) when the pivot shaft (19) on the furniture drive (3) is in the assembly position, whereby after rotating the closure element (14), the first and second positive locking contours engage in a form-fitting manner.

41. Furniture drive (3) according to one or more or more of the preceding claims, characterized in that the furniture drive (3) has an electric motor (3a), which has at least two spindle lifting threads (6a, 6b) via a gear wheel (27) for adjusting several furniture components ( 2b, 2c) interacts.

42. Furniture drive (3) according to claim 41, characterized in that the at least two spindle lifting threads (6a, 6b) each have a threaded spindle (28) with an opposite direction of pitch, the threaded spindles (28) and the gear wheel (27) having a common axis of rotation .

43. Furniture drive (3) according to claim 42, characterized in that a nut (29) is applied to the threads of each threaded spindle (28), each nut (29) being non-rotatable, but designed to be displaceable lengthways and in the housing ( 16) of the furniture drive (3), each nut (29) being connected directly or via intermediate links (29a) to an adjusting lever or pivoting lever (7"' 7""), which is connected to the associated furniture component (2b, 2c) and/or or is coupled to a furniture component (2b, 2c) to be adjusted.

44. Furniture drive (3) according to claim 43, characterized in that a head or back part nut (29b) is connected to the furniture component for adjusting the back part (2b), and that a leg part nut (29c) is connected to the furniture component of the leg part and / or the foot part (2c) is connected.

45. Furniture drive (3) according to claim 44, characterized in that the back part nut (29b) directly on the back part (2b) of the furniture (1) and that the leg part nut (29c) via an intermediate member (29a) on the leg part (2c ) of the furniture (1).

46. Furniture drive (3) according to claim 45, characterized in that at least one coupling slide (30) is provided, which is displaceably mounted between the back part nut (29b) and the intermediate member (29a).

47. Furniture drive (3) according to claim 46, characterized in that guide means such as webs or recesses for displaceably guiding the at least one coupling slide (30) are provided in the housing (16).

48. Functional fitting (4) for a furniture drive (3), for coupling to a piece of furniture (1) to be assigned, in particular a piece of seating and reclining furniture, the adjustment movement and drive generated by the furniture drive (3). force can be transferred to the respective fixed or movable furniture component of the furniture (1) to be assigned,

characterized,

that the functional fitting (4) is designed with a furniture drive (3) according to one or more of the preceding claims and can be installed in the silhouette or contour and/or in a frame (5) of the furniture (1).

49. Functional fitting (4) according to claim 48, characterized in that the functional fitting (4) has output levers (40), which are coupled at least to a back part (2b) or to a leg part (2c) of the furniture (1) to be assigned and are connected to the housing of the furniture drive (3) or are articulated to it, a compact unit consisting of the furniture drive (3) and functional fitting (4) being formed as a functional system and connected to the furniture (1) on the inside of the frame (5 ) is designed to be connectable.

50. Functional fitting (4) according to claim 49, characterized in that the functional fitting (4) has two drive units (21, 21 '), in which the spindle lifting threads (6, 6', 6", 6"', 6a, 6b) are arranged, with a mounting unit (22, 22') for attaching a frame (5) or slatted frame (2) being attached to the outside of the drive units (21, 21 ').

51. Functional fitting (4) according to claim 50, characterized in that the assembly unit (22, 22 ') each forms a one-piece molded part with the housing (16) of the drive unit (21, 21 '), with an overall height of the respective assembly unit (22, 22 ') is less than the height of the respective drive unit (21, 21 ').

52. Functional fitting (4) according to claim 49, characterized in that the functional fitting (4) has a two-motor furniture drive (3) in a housing (16) with pivoting shafts (19), the pivoting shafts (19) being transverse to a longitudinal axis of the twin-motor furniture drive (3) extend out of this and include a polygonal tube (19b) on the outside.

53. Functional fitting (4) according to claim 52, characterized in that a respective output member (40) of the furniture drive (3) is pivotable to the Housing (16) is mounted and has an inner profile, which is positively connected to the outside profile of the pivot shaft (19) or the polygonal tube (19b) on the circumference in a rotationally fixed connection, with a bearing of the pivot shaft (19) or the polygonal tube ( 19b) by bearing shields (19c), which are at the respective free end of the

Pivot shaft (19) or the polygonal tube (19b) are rotatably mounted, and the end shields (19c) themselves can be connected to the frame (5) of the furniture (1) or the slatted frame (2).