EP1521539A1 - Electromotive furniture drive - Google Patents

Electromotive furniture drive

Info

Publication number
EP1521539A1
EP1521539A1 EP03763648A EP03763648A EP1521539A1 EP 1521539 A1 EP1521539 A1 EP 1521539A1 EP 03763648 A EP03763648 A EP 03763648A EP 03763648 A EP03763648 A EP 03763648A EP 1521539 A1 EP1521539 A1 EP 1521539A1
Authority
EP
European Patent Office
Prior art keywords
drive
furniture
guide element
drive means
support device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03763648A
Other languages
German (de)
French (fr)
Other versions
EP1521539B2 (en
EP1521539B1 (en
Inventor
Rolf Farmont
Johannes Schneider
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cimosys AG
Original Assignee
Cimosys AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
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Application filed by Cimosys AG filed Critical Cimosys AG
Publication of EP1521539A1 publication Critical patent/EP1521539A1/en
Application granted granted Critical
Publication of EP1521539B1 publication Critical patent/EP1521539B1/en
Publication of EP1521539B2 publication Critical patent/EP1521539B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C20/00—Head -, foot -, or like rests for beds, sofas or the like
    • A47C20/08—Head -, foot -, or like rests for beds, sofas or the like with means for adjusting two or more rests simultaneously
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C20/00—Head -, foot -, or like rests for beds, sofas or the like
    • A47C20/04—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination
    • A47C20/041—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination by electric motors

Definitions

  • the invention relates to an electromotive furniture drive of the type mentioned in the preamble of claim 1 for adjusting parts of a piece of furniture relative to one another.
  • Furniture drives of this type are generally known and are used, for example, as adjusting drives for adjusting parts of a slatted frame relative to one another.
  • EP 0 372 032 B1 discloses a furniture drive of the type in question which has a drive means which is linearly movable along a linear movement axis for pivoting a pivot element which is in operative connection with a part of the furniture to be adjusted and which can be pivoted about a pivot axis when the furniture drive is in the assembly position having.
  • the linearly movable drive means is formed by a spindle nut of a spindle drive
  • the swivel element is formed by a swivel lever which is non-rotatably connected to a swivel shaft which is in operative connection with the part of the furniture to be adjusted.
  • the spindle nut acts loosely on the end of the pivot lever facing away from the pivot shaft.
  • the adjustment force that can be exerted on the part of the piece of furniture to be adjusted by means of the furniture drive decreases the more sharply the more acute the angle between the linear axis of movement of the drive means and the longitudinal axis of the pivot lever. It is particularly disadvantageous here that the angle becomes more acute the further the furniture drive approaches an end position of the adjustment movement, in which, however, the reaction force of the furniture acting on the furniture drive and thus the adjustment force is usually the greatest.
  • the invention has for its object to provide a furniture drive of the type mentioned in the preamble of claim 1, which does not have the disadvantage of the known furniture drives, in which a drop occurring during the adjustment movement of the adjusting force to be applied by means of the furniture drive is substantially avoided and which is also simple and therefore inexpensive to manufacture.
  • This object is achieved by the teaching specified in claim 1.
  • the invention is based on the knowledge that the effective length of the lever arm of the swivel element changes in that during the adjustment movement the point at which the drive means engages the swivel element is displaced along the linear movement axis of the drive means. Accordingly, the invention is based on the idea of providing means which, during the adjustment movement, hold the drive means in engagement with the pivoting element at a point which is essentially fixed along the linear movement axis. In this way it is achieved that the effective length of the lever arm essentially does not change during the adjustment movement, so that the adjustment force which can be exerted on the part of the piece of furniture to be adjusted by means of the furniture drive is essentially constant during the entire adjustment movement. This means that substantially uniformly large forces can be exerted on the part of the piece of furniture to be adjusted during the entire adjustment movement, in particular also in the end positions of the adjustment movement.
  • the furniture drive according to the invention is simple and therefore inexpensive to manufacture and robust in construction. It is suitable for adjusting any part of a piece of furniture, but in particular for adjusting adjustable parts of a support device for upholstering a piece of seating and / or reclining furniture, for example a slatted frame.
  • the swivel element or a component connected to the swivel element points in the swivel direction. tion on an extension which is selected so that the drive means is constantly engaged with the pivoting element during the adjustment movement with a substantially fixed point.
  • the swivel element can, for example, have a plurality of lever arms which follow one another in the swivel direction and which successively come into engagement with the drive means in such a way that the drive means is held in engagement with the swivel element at a point which is essentially fixed along the linear movement axis during the adjustment movement.
  • a particularly simple and therefore inexpensive to produce embodiment of the basic idea of the teaching according to the invention provides that the means which hold the drive means in engagement with the pivoting element at a point which is substantially stationary along the linear movement axis, in the manner of a cam disk have formed guide element for the drive means, with which the drive means is in engagement in the mounting position of the furniture drive.
  • the guide element has a contour that is essentially delimited by an arc of a circle.
  • the guide element is particularly simple and therefore inexpensive to manufacture.
  • the guide element based on the pivot axis, can extend over an angle of 360 ° or approximately 360 °, so that the guide element has essentially the contour of a full circle.
  • the guide element is designed essentially as a circular segment, in particular a quarter-circle segment. Such an extension of the guide element in the pivoting direction is generally sufficient to ensure that the drive means engage the pivoting element at a point that is essentially stationary along the linear movement axis during the adjustment movement.
  • Embodiment form the guide element and the drive means a cam drive.
  • the angular velocity at which the swivel element is swiveled changes along the linear movement axis at a constant speed of the drive means.
  • the drive means can be designed as traction means or pressure means, as is provided by further developments. According to other developments of the teaching according to the invention, the drive means can be flexible or essentially rigid. •
  • the drive means has teeth on its surface which is in engagement with the guide element in the assembly position of the furniture drive for interaction with teeth of the guide element which are essentially complementary thereto.
  • ken the guide element and the drive means together in the manner of a pinion is particularly simple and therefore inexpensive to manufacture.
  • it is particularly robust and suitable for applying large forces.
  • the guide element is expediently designed as a gearwheel or as a gearwheel segment, as is provided by a further development.
  • Gears are available as simple and therefore inexpensive standard components, so that the structure of the furniture drive according to the invention is further simplified.
  • the drive means has a chain in such a way that a chain drive is formed.
  • This embodiment is also particularly simple and therefore inexpensive to manufacture and is suitable for applying large forces.
  • the drive means has a toothed rack such that a toothed rack drive is formed.
  • This embodiment is also particularly simple and therefore inexpensive to manufacture and particularly robust.
  • the drive means has a rope or belt for interacting with a guide element designed in the manner of a rope drum or rope pulley, in such a way that a rope drive is formed.
  • the structure of the furniture drive according to the invention is further simplified.
  • the guide element can be connected to the pivot element by a separate, non-rotatably connected element Component be formed.
  • the structure of the furniture drive according to the invention can be further simplified in that the guide element is formed in one piece with the swivel element or is formed by the swivel element, as is provided by a development of the teaching according to the invention.
  • the linearly movable drive means can be designed in any suitable manner.
  • An advantageous development of the teaching according to the invention provides that the linearly movable drive means is connected to a linearly movable drive element of a spindle drive or is formed by the linearly movable drive element of a spindle drive.
  • Such spindle drives are available as simple and inexpensive standard components and are suitable for the transmission of large forces and are robust.
  • the linearly movable drive element of the spindle drive can be a spindle nut that is secured against rotation and movable in the axial direction on a spindle that can be driven in rotation.
  • the linearly movable drive element of the spindle drive can, however, also be a spindle which is movable in its axial direction and is mounted such that it cannot rotate, on which a stationary, rotationally drivable spindle nut is arranged.
  • the drive means is fixed to the swivel element or the guide element.
  • a support device according to the invention adjustable by an electric motor, for upholstering a seating and / or reclining furniture, in particular a mattress Bed is specified in claim 20. Further developments of the support device according to the invention are specified in subclaims 21 to 38.
  • Fig. 1 is a top view of a support device designed as a slatted frame according to the invention, with a first
  • FIG. 2 shows a section along a line II-II in FIG. 1, FIG. 3 in the same representation as FIG. 2 on a larger scale than FIG. 2, a detail from FIG. 2 in the area of the furniture drive,
  • FIG. 4 in the same representation as FIG. 3, a second embodiment of a furniture drive according to the invention
  • FIG. 5 shows a view from the left of a cable pulley of the furniture drive according to FIG. 4 and FIG. 6 on a larger scale compared to FIG. 4 in the same representation as FIG. 3 shows a third embodiment of a furniture drive according to the invention.
  • FIG. 1 an embodiment of a support device 2 according to the invention is shown, which is designed in this embodiment as a slatted frame and has a frame 4 to which a stationary central support member 6 is connected.
  • a leg support part 8 is connected to the central support part 6 in an articulated manner and pivotable about a horizontal pivot axis, with the leg support part 8 facing away from it
  • a calf support part 10 is connected in an articulated manner and pivotable about a horizontal pivot axis. With the end of the middle support part 6 facing away from the leg support part 8, an upper body support part 12 is connected in an articulated and pivotable manner about a horizontal pivot axis, with the end facing away from the central support part 6 in an articulated manner and a head support part 14 is pivotable about a horizontal pivot axis.
  • the manner in which the support parts 6 to 14 are connected to one another is generally known and is therefore not explained in more detail here.
  • the support parts 6 to 14 are provided on their upper side with resilient slats, of which only one slat is provided with the reference number 16 in the drawing.
  • the slats 16 serve to provide resilient support for an upholstery of a piece of seating and / or reclining furniture, for example a mattress of a bed, not shown in the drawing and supported by the support device 2.
  • the support device 2 according to the invention is provided with a first embodiment of a furniture drive 18 according to the invention, which in this embodiment for adjusting the upper body support part 12 and the head support part 14 relative to the middle one Support part 6 is used.
  • the furniture drive 18 is accommodated in a hollow side rail 19 of the central support part 6.
  • FIG. 2 shows a section along a line II-II in FIG. 1.
  • FIG. 3 shows the furniture drive 18 according to the invention on a larger scale than in FIG. 2.
  • the furniture drive 18 has an electric motor 20 which is fastened to a wall of the side rail 19 and which is connected via a gear arrangement 22 in rotary drive connection to a stationary spindle 24 of a spindle drive which can be driven in rotation.
  • a spindle nut 26 is arranged on the spindle 26 in such a way that it cannot rotate and can move back and forth in the axial direction in the direction of a double arrow 28.
  • the spindle nut 26 moves to the left or right along a linear movement axis 30 in FIG. 3.
  • the support device 2 has an adjustment fitting 32 according to the invention, which in this exemplary embodiment has a pivot shaft 36 which is pivotably mounted on the frame 4 of the support device 2 about a pivot axis 34 and to which a pivot lever 38 is connected in a rotationally fixed manner.
  • the pivot lever 38 is connected to the upper body support part 12 and the head support part 14 in such a way that the upper body support part 12 and the head support part 14 are pivoted about the pivot axis 34 when the pivot shaft 36 is pivoted.
  • the adjustment fitting 32 has a swivel element which is connected to the swivel shaft 36 in a manner fixed against relative rotation, which in this exemplary embodiment is designed as a gear segment 40 and engages in the form of a flexible traction means a chain 42 is located, one end of which is fixed to the gear segment 40 and the other end to the spindle nut 26.
  • the chain 42 forms a drive means of the furniture drive 18 that is movable along the linear movement axis 30.
  • means are provided which hold the drive means, in the exemplary embodiment according to FIG. 1 the chain 42, in engagement with the gearwheel segment 40 forming the pivoting element at a point P which is essentially fixed along the linear movement axis 30.
  • these means are formed in that the gear segment 40 is designed as a guide element for the chain 42 designed in the manner of a cam disk.
  • the gear segment 40 has an essentially delimited circular arc shape and is designed as a quarter circle segment. During the adjustment movement, the gear segment 40 pivots about the
  • the electric motor 20 drives the spindle 24 via the gear arrangement 22 in such a way that they
  • the chain 42 is always in engagement with the gearwheel segment 40 at the point P, so that the effective length of the auxiliary arm 44, with which the chain 42 engages the pivot shaft 36, does not change during the adjustment movement. Since the effective length of the lever arm 44 does not change during the adjustment movement, when the drive torque of the electric motor 20 remains constant, that which can be applied by means of the furniture drive 18 remains on the
  • FIG. 4 shows a further exemplary embodiment of a furniture drive 18 according to the invention, which differs from the exemplary embodiment according to FIG. 3 in that the drive means has a flexible rope 46 instead of a chain.
  • the swivel element which is connected in a rotationally fixed manner to the swivel lever 38 and which, in this exemplary embodiment, forms a guide element for the cable 46 designed in the manner of a cam plate, is designed in this exemplary embodiment as a pulley 48 acting in the manner of a cable drum.
  • One end of the rope 46 is fixed to the pulley 48, while the other end is fixed to the spindle nut 26.
  • the cable 46 is in engagement with the cable pulley 48 at a point P which is substantially fixed along the linear movement axis 30 during the adjustment movement, so that the effective length of the lever arm 44 with which the cable 46 is attached the pivot shaft 36 engages during the adjustment movement essentially does not change.
  • Fig. 5 which shows a view from the left in Fig. 4, it can be seen that the pulley 48 is formed by two interconnected plates 44 whose ends facing away from the pivot axis 34 are bent so that a groove 54 is formed in of the rope 46 is guided. The inclusion of the rope 46 in the groove 54 prevents the rope 46 from slipping off the rope pulley 48 during the adjustment movement.
  • FIG. 6 shows a third exemplary embodiment of a furniture drive 18 according to the invention, which differs from the exemplary embodiment according to FIG. 3 in that the drive means instead of a chain 42 has a toothed rack 56 which is molded onto the end of the spindle nut 26 facing the gear segment 40 is.
  • the rack 56 and the spindle nut 26 can, for example, in one piece through a molded part be made of plastic.
  • the rack 56 has a toothing which is essentially complementary to the toothing of the gear segment 40.
  • the toothed rack 56 is held in engagement with the gearwheel segment 40 at a point P which is substantially stationary along the linear movement axis 30, so that the length of the lever arm with which the toothed rack 56 engages on the pivot shaft 36 increases , essentially does not change.
  • the furniture drive 18 according to the invention is simple and inexpensive to manufacture and robust in construction.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Transmission Devices (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Elimination Of Static Electricity (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Liquid Crystal (AREA)
  • Legs For Furniture In General (AREA)

Abstract

The invention relates to an electromotive furniture drive (18) for displacing parts (6-14) of a piece of furniture relative to one another. Said drive comprises a drive means that can linearly move along a linear motion axis (30). This drive means is provided for pivoting a pivotal element, which can pivot about a pivot axis (34) and which, when the furniture drive (18) is in a mounted position, is actively connected to a part of the piece of furniture to be displaced. According to the invention, means are provided that, during the displacing motion, maintain the engagement between the drive means and the pivotal element at a point P that is essentially fixed along the linear motion axis (30). The inventive furniture drive can be easily and economically produced and has a sturdy design.

Description

Elektromotorischer Möbelantrieb Electromotive furniture drive
Die Erfindung betrifft einen elektromotorischen Möbelantrieb der im Oberbegriff des Anspruchs 1 genannten Art zum Verstellen von Teilen eines Möbels relativ zueinander. Derartige Möbelantriebe sind allgemein bekannt und dienen beispielsweise als VerStellantriebe zum Verstellen von Teilen eines Lattenrostes relativ zueinander.The invention relates to an electromotive furniture drive of the type mentioned in the preamble of claim 1 for adjusting parts of a piece of furniture relative to one another. Furniture drives of this type are generally known and are used, for example, as adjusting drives for adjusting parts of a slatted frame relative to one another.
Durch EP 0 372 032 Bl ist ein Möbelantrieb der betreffenden Art bekannt, der ein entlang einer linea- ren Bewegungsachse linear bewegliches Antriebsmittel zum Verschwenken eines in Montageposition des Möbel - antriebs mit einem zu verstellenden Teil des Möbels in Wirkungsverbindung stehenden, um eine Schwenkachse verschwenkbaren Schwenkelementes aufweist. Bei dem bekann- ten Möbelantrieb ist das linear bewegliche Antriebsmittel durch eine Spindelmutter eines Spindeltriebes gebildet, während das Schwenkelement durch einen Schwenkhebel gebildet ist, der drehfest mit einer Schwenkwelle verbunden ist, die mit dem zu verstellen- den Teil des Möbels in Wirkungsverbindung steht. Hierbei beaufschlagt die Spindelmutter das der Schwenkwelle abgewandte Ende des Schwenkhebels lose.EP 0 372 032 B1 discloses a furniture drive of the type in question which has a drive means which is linearly movable along a linear movement axis for pivoting a pivot element which is in operative connection with a part of the furniture to be adjusted and which can be pivoted about a pivot axis when the furniture drive is in the assembly position having. In the known furniture drive, the linearly movable drive means is formed by a spindle nut of a spindle drive, while the swivel element is formed by a swivel lever which is non-rotatably connected to a swivel shaft which is in operative connection with the part of the furniture to be adjusted. Here, the spindle nut acts loosely on the end of the pivot lever facing away from the pivot shaft.
Ähnliche Möbelantriebe sind auch durch DE 38 42 078 C2, EP 0 583 660 Bl, DE 100 46 750 Cl und DE 100 46 752 Cl bekannt.Similar furniture drives are also known from DE 38 42 078 C2, EP 0 583 660 B1, DE 100 46 750 Cl and DE 100 46 752 Cl.
Bei den bekannten Möbelantrieben ändert sich wäh- rend der Verstellbewegung die Winkellage des Schwenkhebels relativ zu der linearen Bewegungsachse des Antriebsmittels. Daraus ergibt sich der Nachteil, daß sich die an der Schwenkwelle angreifende wirksame Länge des Hebelarmes, also die Länge der senkrecht zur linearen Bewegungsachse des Antriebsmittels stehenden Komponente des Hebelarmes, während der Verstellbewegung ständig ändert, so daß sich die auf die Schwenkwelle und damit auf das zu verstellende Teil des Möbels wir- kende Kraft während der Verstellbewegung ständig ändert und mit Verringerung der wirksamen Länge des Hebelarmes abnimmt. Hierbei nimmt die mittels des Möbelantriebs auf das zu verstellende Teil des Möbels ausübbare Verstellkraft um so stärker ab, je spitzer der Winkel zwi- sehen der linearen Bewegungsachse des Antriebsmittels und der Längsachse des Schwenkhebels ist. Besonders nachteilig ist hierbei, daß der Winkel umso spitzer wird, je weiter sich der Möbelantrieb einer Endlage der Verstellbewegung nähert, in der jedoch die auf den Mö- beiantrieb wirkende Reaktionskraft des Möbels und damit die Verstellkraft üblicherweise am größten ist.In the known furniture drives, rend the adjustment movement, the angular position of the pivot lever relative to the linear axis of movement of the drive means. This results in the disadvantage that the effective length of the lever arm acting on the swivel shaft, i.e. the length of the component of the lever arm perpendicular to the linear movement axis of the drive means, constantly changes during the adjustment movement, so that the swivel shaft and thus the The part of the furniture force to be adjusted constantly changes during the adjustment movement and decreases as the effective length of the lever arm decreases. Here, the adjustment force that can be exerted on the part of the piece of furniture to be adjusted by means of the furniture drive decreases the more sharply the more acute the angle between the linear axis of movement of the drive means and the longitudinal axis of the pivot lever. It is particularly disadvantageous here that the angle becomes more acute the further the furniture drive approaches an end position of the adjustment movement, in which, however, the reaction force of the furniture acting on the furniture drive and thus the adjustment force is usually the greatest.
Durch DE 100 17 978 AI und DE 100 17 979 AI sind jeweils zu den vorgenannten Möbelantrieben ähnliche Möbelantriebe bekannt, bei denen das Antriebsmittel durch ein flexibles Zugmittel, beispielsweise in Form eines Zugbandes, gebildet ist.From DE 100 17 978 AI and DE 100 17 979 AI furniture drives similar to the aforementioned furniture drives are known, in which the drive means is formed by a flexible traction means, for example in the form of a drawstring.
Der Erfindung liegt die Aufgabe zugrunde, einen Möbelantrieb der im Oberbegriff des Anspruchs 1 genannten Art anzugeben, der den Nachteil der bekannten Mö- beiantriebe nicht aufweist, bei dem also ein während der Verstellbewegung auftretender Abfall der mittels des Möbelantriebs aufzubringenden Verstellkraft im wesentlichen vermieden ist und der darüber hinaus einfach und damit kostengünstig herstellbar ist. Diese Aufgabe wird durch die im Anspruch 1 angegebene Lehre gelöst .The invention has for its object to provide a furniture drive of the type mentioned in the preamble of claim 1, which does not have the disadvantage of the known furniture drives, in which a drop occurring during the adjustment movement of the adjusting force to be applied by means of the furniture drive is substantially avoided and which is also simple and therefore inexpensive to manufacture. This object is achieved by the teaching specified in claim 1.
Der Erfindung liegt die Erkenntnis zugrunde, daß sich die wirksame Länge des Hebelarmes des Schwenkele- mentes dadurch ändert, daß sich während der Verstell- bewegung der Punkt, an dem das Antriebsmittel an dem Schwenkelement angreift, entlang der linearen Bewegungsachse des Antriebsmittels verlagert. Dementsprechend liegt der Erfindung der Gedanke zugrunde, Mittel vorzusehen, die das Antriebsmittel während der Verstellbewegung an einem entlang der linearen Bewegungsachse im wesentlichen ortsfesten Punkt mit dem Schwenkelement in Eingriff halten. Auf diese Weise ist erreicht, daß sich die wirksame Länge des Hebelarmes wäh- rend der Verstellbewegung im wesentlichen nicht ändert, so daß die mittels des Möbelantriebs auf das zu verstellende Teil des Möbels ausübbare Verstellkraft während der gesamten Verstellbewegung im wesentlichen konstant ist. Somit lassen sich während der gesamten Ver- Stellbewegung im wesentlichen gleichmäßig große Kräfte auf das zu verstellende Teil des Möbels ausüben, insbesondere auch in den Endlagen der Verstellbewegung.The invention is based on the knowledge that the effective length of the lever arm of the swivel element changes in that during the adjustment movement the point at which the drive means engages the swivel element is displaced along the linear movement axis of the drive means. Accordingly, the invention is based on the idea of providing means which, during the adjustment movement, hold the drive means in engagement with the pivoting element at a point which is essentially fixed along the linear movement axis. In this way it is achieved that the effective length of the lever arm essentially does not change during the adjustment movement, so that the adjustment force which can be exerted on the part of the piece of furniture to be adjusted by means of the furniture drive is essentially constant during the entire adjustment movement. This means that substantially uniformly large forces can be exerted on the part of the piece of furniture to be adjusted during the entire adjustment movement, in particular also in the end positions of the adjustment movement.
Der erfindungsgemäße Möbelantrieb ist einfach und damit kostengünstig herstellbar und robust im Aufbau. Er ist zum Verstellen beliebiger Teile eines Möbels geeignet, insbesondere jedoch zum Verstellen von verstellbaren Teilen einer Stützeinrichtung für eine Polsterung eines Sitz- und/oder Liegemöbels, beispielsweise eines Lattenrostes. Um das Antriebsmittel während der Verstellbewegung an einem entlang der linearen Bewegungsachse im wesentlichen ortsfesten Punkt mit dem Schwenkelement in Eingriff zu halten, weist das Schwenkelement oder ein mit dem Schwenkelement verbundenes Bauteil in Schwenkrich- tung eine Ausdehnung auf, die so gewählt ist, daß sich das Antriebsmittel während der Verstellbewegung ständig mit einem im wesentlichen ortsfesten Punkt im Eingriff mit dem Schwenkelement befindet. Hierzu kann das Schwenkelement beispielsweise mehrere, in Schwenkrichtung aufeinander folgende Hebelarme aufweisen, die nacheinander derart in Eingriff mit dem Antriebsmittel gelangen, daß das Antriebsmittel während der Verstell- bewegung an einem entlang der linearen Bewegungsachse im wesentlichen ortsfesten Punkt mit dem Schwenkelement in Eingriff gehalten ist. Eine besonders einfache und damit kostengünstig herstellbare Ausgestaltung des Grundgedankens der erfindungsgemäßen Lehre sieht vor, daß die Mittel, die das Antriebsmittel während der Ver- Stellbewegung an einem entlang der linearen Bewegungsachse im wesentlichen ortsfesten Punkt mit dem Schwenkelement in Eingriff halten, ein nach Art einer Kurvenscheibe ausgebildetes Führungselement für das Antriebs- mittel aufweisen, mit dem das Antriebsmittel in Monta- geposition des Möbelantriebs in Eingriff steht. Derartige Kurvenscheiben sind besonders einfach und damit kostengünstig herstellbar, so daß der erfindungsgemäße Möbelantrieb insgesamt besonders einfach und damit kostengünstig herstellbar ist. Eine Weiterbildung der vorgenannten Ausführungs- form sieht vor, daß das Führungselement eine im wesentlichen kreisbogenförmig begrenzte Kontur aufweist. Bei dieser Ausführungsform ist das Führungselement besonders einfach und damit kostengünstig herstellbar. Bei der vorgenannten Ausführungsform kann sich das Führungselement, bezogen auf die Schwenkachse, über einen Winkel von 360° oder annähernd 360° erstrecken, so daß das Führungselement im wesentlichen die Kontur eines Vollkreises hat. Eine Weiterbildung der vorge- nannten Ausführungsform sieht vor, daß das Führungs- element im wesentlichen als Kreissegment, insbesondere Viertelkreissegment, ausgebildet ist. Eine solche Erstreckung des Führungselementes in Schwenkrichtung ist in der Regel ausreichend, um einen Eingriff der Antriebsmittel an dem Verschwenkelement an einem entlang der linearen Bewegungsachse im wesentlichen ortsfesten Punkt während der Verstellbewegung zu gewährleisten.The furniture drive according to the invention is simple and therefore inexpensive to manufacture and robust in construction. It is suitable for adjusting any part of a piece of furniture, but in particular for adjusting adjustable parts of a support device for upholstering a piece of seating and / or reclining furniture, for example a slatted frame. In order to keep the drive means in engagement with the swivel element at a point which is essentially stationary along the linear movement axis, the swivel element or a component connected to the swivel element points in the swivel direction. tion on an extension which is selected so that the drive means is constantly engaged with the pivoting element during the adjustment movement with a substantially fixed point. For this purpose, the swivel element can, for example, have a plurality of lever arms which follow one another in the swivel direction and which successively come into engagement with the drive means in such a way that the drive means is held in engagement with the swivel element at a point which is essentially fixed along the linear movement axis during the adjustment movement. A particularly simple and therefore inexpensive to produce embodiment of the basic idea of the teaching according to the invention provides that the means which hold the drive means in engagement with the pivoting element at a point which is substantially stationary along the linear movement axis, in the manner of a cam disk have formed guide element for the drive means, with which the drive means is in engagement in the mounting position of the furniture drive. Such cams are particularly simple and therefore inexpensive to manufacture, so that the furniture drive according to the invention is particularly simple and thus inexpensive to manufacture. A further development of the aforementioned embodiment provides that the guide element has a contour that is essentially delimited by an arc of a circle. In this embodiment, the guide element is particularly simple and therefore inexpensive to manufacture. In the aforementioned embodiment, the guide element, based on the pivot axis, can extend over an angle of 360 ° or approximately 360 °, so that the guide element has essentially the contour of a full circle. Further training in the mentioned embodiment provides that the guide element is designed essentially as a circular segment, in particular a quarter-circle segment. Such an extension of the guide element in the pivoting direction is generally sufficient to ensure that the drive means engage the pivoting element at a point that is essentially stationary along the linear movement axis during the adjustment movement.
Eine andere Weiterbildung der Ausführungsform mit dem nach Art einer Kurvenscheibe ausgebildeten Führungselement sieht vor, daß das Führungselement eine im wesentlichen kurvenförmige Kontur mit sich in Umfangs- richtung des Führungselementes wenigstens abschnittsweise änderndem Abstand der Begrenzungsfläche der Kon- tur von der Schwenkachse aufweist .• Bei dieser Ausführungsform bilden das Führungselement und das Antriebs- mittel einen Kurventrieb. Entsprechend der Kurvenform des Führungselementes ändert sich bei konstanter Geschwindigkeit des Antriebsmittels entlang der linearen Bewegungsachse die Winkelgeschwindigkeit, mit der das Schwenkelement verschwenkt wird.Another development of the embodiment with the guide element designed in the manner of a cam disk provides that the guide element has an essentially curved contour with the distance of the boundary surface of the contour from the pivot axis changing at least in sections in the circumferential direction of the guide element Embodiment form the guide element and the drive means a cam drive. In accordance with the curve shape of the guide element, the angular velocity at which the swivel element is swiveled changes along the linear movement axis at a constant speed of the drive means.
Entsprechend den jeweiligen Anforderungen kann das Antriebsmittel als Zugmittel oder Druckmittel ausgebildet sein, wie dies Weiterbildungen vorsehen. Gemäß anderen Weiterbildungen der erfindungsgemäßen Lehre kann das Antriebsmittel flexibel oder im wesentlichen starr ausgebildet sein. •According to the respective requirements, the drive means can be designed as traction means or pressure means, as is provided by further developments. According to other developments of the teaching according to the invention, the drive means can be flexible or essentially rigid. •
Eine außerordentlich vorteilhafte Weiterbildung der erfindungsgemäßen Lehre sieht vor, daß das An- triebsmittel an seiner in Montageposition des Möbel- antriebs mit dem Führungselement in Eingriff stehenden Fläche eine Verzahnung aufweist zum Zusammenwirken mit einer hierzu im wesentlichen komplementären Verzahnung des Führungselementes. Bei dieser Ausführungsform wir- ken das Führungselement und das Antriebsmittel nach Art eines Zahntriebes zusammen. Diese Ausführungsform ist besonders einfach und damit kostengünstig herstellbar. Darüber hinaus ist sie besonders robust und zum Auf- bringen großer Kräfte geeignet.An extraordinarily advantageous development of the teaching according to the invention provides that the drive means has teeth on its surface which is in engagement with the guide element in the assembly position of the furniture drive for interaction with teeth of the guide element which are essentially complementary thereto. In this embodiment, ken the guide element and the drive means together in the manner of a pinion. This embodiment is particularly simple and therefore inexpensive to manufacture. In addition, it is particularly robust and suitable for applying large forces.
Bei der vorgenannten Ausführungsform ist das Führungselement zweckmäßigerweise als Zahnrad oder als Zahnradsegment ausgebildet, wie dies eine Weiterbildung vorsieht. Zahnräder stehen als einfache und damit ko- stengunstige Standardbauteile zur Verfügung, so daß der Aufbau des erfindungsgemäßen Möbelantriebs weiter vereinfacht ist .In the aforementioned embodiment, the guide element is expediently designed as a gearwheel or as a gearwheel segment, as is provided by a further development. Gears are available as simple and therefore inexpensive standard components, so that the structure of the furniture drive according to the invention is further simplified.
Eine Weiterbildung der vorgenannten Ausführungs- form sieht vor, daß das Antriebsmittel eine Kette auf- weist, derart, daß ein Kettentrieb gebildet ist. Auch diese Ausführungsform ist besonders einfach und damit kostengünstig herstellbar und zum Aufbringen großer Kräfte geeignet .A further development of the aforementioned embodiment provides that the drive means has a chain in such a way that a chain drive is formed. This embodiment is also particularly simple and therefore inexpensive to manufacture and is suitable for applying large forces.
Gemäß einer anderen Weiterbildung der erfindungs- gemäßen Ausführungsform mit dem als Zahnrad oder Zahnradsegment ausgebildeten Führungselement weist das Antriebsmittel eine Zahnstange auf, derart, daß ein Zahnstangentrieb gebildet ist. Diese Ausführungsform ist ebenfalls besonders einfach und damit kostengünstig herstellbar und besonders robust.According to another development of the embodiment according to the invention with the guide element designed as a gear or gear segment, the drive means has a toothed rack such that a toothed rack drive is formed. This embodiment is also particularly simple and therefore inexpensive to manufacture and particularly robust.
Gemäß einer anderen Weiterbildung weist das Antriebsmittel ein Seil oder Band auf zum Zusammenwirken mit einem nach Art einer Seiltrommel oder Seilscheibe ausgebildeten Führungselement, derart, daß ein Seil- trieb gebildet ist. Bei dieser Ausführungsform ist der Aufbau des erfindungsgemäßen Möbelantriebs weiter vereinfacht .According to another development, the drive means has a rope or belt for interacting with a guide element designed in the manner of a rope drum or rope pulley, in such a way that a rope drive is formed. In this embodiment, the structure of the furniture drive according to the invention is further simplified.
Grundsätzlich kann das Führungselement durch ein separates, drehfest mit dem Schwenkelement verbundenes Bauteil gebildet sein. Der Aufbau des erfindungsgemäßen Möbelantriebs läßt sich jedoch dadurch weiter vereinfachen, daß das Führungselement einstückig mit dem Schwenkelement ausgebildet oder durch das Schwenkele- ment gebildet ist, wie dies eine Weiterbildung der erfindungsgemäßen Lehre vorsieht.In principle, the guide element can be connected to the pivot element by a separate, non-rotatably connected element Component be formed. However, the structure of the furniture drive according to the invention can be further simplified in that the guide element is formed in one piece with the swivel element or is formed by the swivel element, as is provided by a development of the teaching according to the invention.
Das linear bewegliche Antriebsmittel kann in beliebiger geeigneter Weise ausgebildet sein. Eine vorteilhafte Weiterbildung der erfindungsgemäßen Lehre sieht vor, daß das linear bewegliche Antriebsmittel mit einem linear beweglichen Antriebselement eines Spindel - triebes verbunden ist oder durch das linear bewegliche Antriebselement eines Spindeltriebes gebildet ist. Derartige Spindeltriebe stehen als einfache und kostengün- stige Standardbauteile zur Verfügung und sind zur Übertragung großer Kräfte geeignet sowie robust .The linearly movable drive means can be designed in any suitable manner. An advantageous development of the teaching according to the invention provides that the linearly movable drive means is connected to a linearly movable drive element of a spindle drive or is formed by the linearly movable drive element of a spindle drive. Such spindle drives are available as simple and inexpensive standard components and are suitable for the transmission of large forces and are robust.
Bei der vorgenannten Ausführungsform kann das linear bewegliche Antriebselement des Spindeltriebes eine verdrehsicher und in Axialrichtung beweglich auf einer drehantreibbaren Spindel angeordnete Spindelmutter sein.In the aforementioned embodiment, the linearly movable drive element of the spindle drive can be a spindle nut that is secured against rotation and movable in the axial direction on a spindle that can be driven in rotation.
In kinematischer Umkehrung der vorgenannten Ausführungsform kann das linear bewegliche Antriebselement des Spindeltriebes jedoch auch eine in ihrer Axialrich- tung bewegliche und verdrehsicher gelagerte Spindel sein, auf der eine ortsfeste, drehantreibbare Spindelmutter angeordnet ist.In a kinematic reversal of the aforementioned embodiment, the linearly movable drive element of the spindle drive can, however, also be a spindle which is movable in its axial direction and is mounted such that it cannot rotate, on which a stationary, rotationally drivable spindle nut is arranged.
Eine andere vorteilhafte Weiterbildung der erfindungsgemäßen Lehre sieht vor, daß das Antriebsmittel an dem Schwenkelement oder dem Führungselement festgelegt ist .Another advantageous development of the teaching according to the invention provides that the drive means is fixed to the swivel element or the guide element.
Eine erfindungsgemäße elektromotorisch verstellbare Stützeinrichtung für eine Polsterung eines Sitz- und/oder Liegemöbels, insbesondere eine Matratze eines Bettes, ist im Anspruch 20 angegeben. Weiterbildungen der erfindungsgemäßen Stützeinrichtung sind in den Unteransprüchen 21 bis 38 angegeben.A support device according to the invention, adjustable by an electric motor, for upholstering a seating and / or reclining furniture, in particular a mattress Bed is specified in claim 20. Further developments of the support device according to the invention are specified in subclaims 21 to 38.
Im Anspruch 39 ist ein erfindungsgemäßer Verstell - beschlag für verstellbare Teile eines Möbels angegeben. Zweckmäßige und vorteilhafte Weiterbildungen sind in den Unteransprüchen 40 bis 46 angegeben.An adjustment fitting according to the invention for adjustable parts of a piece of furniture is specified in claim 39. Expedient and advantageous developments are specified in subclaims 40 to 46.
Die Erfindung wird nachfolgend anhand der beigefügten Zeichnung näher erläutert, in der Ausführungs- beispiele dargestellt sind.The invention is explained in more detail below with reference to the accompanying drawing, in which exemplary embodiments are shown.
Es zeigt :It shows :
Fig. 1 eine Ansicht von oben auf eine als Lattenrost ausgebildete erfindungsgemäße Stützeinrichtung, die mit einem erstenFig. 1 is a top view of a support device designed as a slatted frame according to the invention, with a first
Ausführungsbeispiel eines erfindungsgemäßen Möbelantriebs versehen ist,Embodiment of a furniture drive according to the invention is provided
Fig. 2 einen Schnitt entlang einer Linie II-II in Fig. 1, Fig. 3 in gleicher Darstellung wie Fig. 2 in gegenüber Fig. 2 vergrößertem Maßstab eine Einzelheit aus Fig. 2 im Bereich des Möbelantriebes,2 shows a section along a line II-II in FIG. 1, FIG. 3 in the same representation as FIG. 2 on a larger scale than FIG. 2, a detail from FIG. 2 in the area of the furniture drive,
Fig. 4 in gleicher Darstellung wie Fig. 3 ein zweites Ausführungsbeispiel eines erfindungsgemäßen Möbelantriebs,4 in the same representation as FIG. 3, a second embodiment of a furniture drive according to the invention,
Fig. 5 in gegenüber Fig. 4 größerem Maßstab eine Ansicht von links einer Seilscheibe des Mδbelantriebs gemäß Fig. 4 und Fig. 6 in gleicher Darstellung wie Fig. 3 ein drittes Ausführungsbeispiel eines erfindungsgemäßen Möbelantriebs .5 shows a view from the left of a cable pulley of the furniture drive according to FIG. 4 and FIG. 6 on a larger scale compared to FIG. 4 in the same representation as FIG. 3 shows a third embodiment of a furniture drive according to the invention.
In den Figuren der Zeichnung sind gleiche bzw. sich entsprechende Bauteile mit den gleichen Bezugszeichen versehen.In the figures of the drawing, the same or corresponding components are provided with the same reference symbols.
In Fig. 1 ist ein Ausführungsbeispiel einer erfindungsgemäßen Stützeinrichtung 2 dargestellt, die bei diesem Ausführungsbeispiel als Lattenrost ausgebildet ist und einen Rahmen 4 aufweist, mit dem ein ortsfestes mittleres Stützteil 6 verbunden ist. Mit dem mittleren Stützteil 6 ist gelenkig und um eine horizontale Schwenkachse verschwenkbar ein Beinstützteil 8 verbun- den, mit dessen dem mittleren Stützteil 6 abgewandtenIn Fig. 1 an embodiment of a support device 2 according to the invention is shown, which is designed in this embodiment as a slatted frame and has a frame 4 to which a stationary central support member 6 is connected. A leg support part 8 is connected to the central support part 6 in an articulated manner and pivotable about a horizontal pivot axis, with the leg support part 8 facing away from it
Ende gelenkig und um eine horizontale Schwenkachse verschwenkbar ein Wadenstutzteil 10 verbunden ist. Mit dem dem Beinstützteil 8 abgewandten Ende des mittleren Stützteiles 6 ist gelenkig und um eine horizontale Schwenkachse verschwenkbar ein Oberkörperstützteil 12 verbunden, mit dessen dem mittleren Stützteil 6 abgewandten Ende gelenkig und um eine horizontale Schwenkachse verschwenkbar ein Kopfstützteil 14 verbunden ist. Die Art und Weise der Verbindung der Stützteile 6 bis 14 miteinander ist allgemein bekannt und wird daher hier nicht näher erläutert.A calf support part 10 is connected in an articulated manner and pivotable about a horizontal pivot axis. With the end of the middle support part 6 facing away from the leg support part 8, an upper body support part 12 is connected in an articulated and pivotable manner about a horizontal pivot axis, with the end facing away from the central support part 6 in an articulated manner and a head support part 14 is pivotable about a horizontal pivot axis. The manner in which the support parts 6 to 14 are connected to one another is generally known and is therefore not explained in more detail here.
An ihrer Oberseite sind die Stützteile 6 bis 14 mit federnden Latten versehen, von denen in der Zeichnung lediglich eine Latte mit dem Bezugszeichen 16 ver- sehen ist. Die Latten 16 dienen zur federnden Abstüt- zung einer in der Zeichnung nicht dargestellten, mittels der Stützeinrichtung 2 abgestützten Polsterung eines Sitz- und/oder Liegemöbels, beispielsweise einer Matratze eines Bettes. Die erfindungsgemäße Stützeinrichtung 2 ist mit einem ersten Ausführungsbeispiel eines erfindungsgemäßen Möbelantriebs 18 versehen, der bei diesem Ausführungsbeispiel zum Verstellen des Oberkörperstützteiles 12 und des KopfStützteiles 14 relativ zu dem mittleren Stützteil 6 dient. Der Möbelantrieb 18 ist bei diesem Ausführungsbeispiel in einem hohlen Seitenholm 19 des mittleren Stützteiles 6 aufgenommen.The support parts 6 to 14 are provided on their upper side with resilient slats, of which only one slat is provided with the reference number 16 in the drawing. The slats 16 serve to provide resilient support for an upholstery of a piece of seating and / or reclining furniture, for example a mattress of a bed, not shown in the drawing and supported by the support device 2. The support device 2 according to the invention is provided with a first embodiment of a furniture drive 18 according to the invention, which in this embodiment for adjusting the upper body support part 12 and the head support part 14 relative to the middle one Support part 6 is used. In this exemplary embodiment, the furniture drive 18 is accommodated in a hollow side rail 19 of the central support part 6.
Fig. 2 zeigt einen Schnitt entlang einer Linie II- II in Fig. 1.FIG. 2 shows a section along a line II-II in FIG. 1.
Fig. 3 zeigt den erfindungsgemäßen Möbelantrieb 18 in gegenüber Fig. 2 größerem Maßstab. Der Möbelantrieb 18 weist einen an einer Wandung des Seitenholmes 19 befestigten Elektromotor 20 auf, der über eine Getrie- beanordnung 22 in Drehantriebsverbindung mit einer ortsfesten, drehantreibbaren Spindel 24 eines Spindel- triebes steht. Auf der Spindel 26 ist verdrehsicher und in Axialrichtung der Spindel 24 in Richtung eines Doppelpfeiles 28 hin- und herbeweglich eine Spindelmutter 26 angeordnet. Entsprechend der Drehrichtung der Abtriebswelle des Elektromotors 20 und damit der Drehrichtung der Spindel 24 bewegt sich die Spindelmutter 26 entlang einer linearen Bewegungsachse 30 in Fig. 3 nach links oder rechts. Die Stützeinrichtung 2 weist bei diesem Ausführungsbeispiel einen erfindungsgemäßen Verstellbeschlag 32 auf, der bei diesem Ausführungsbeispiel eine um eine Schwenkachse 34 schwenkbar an dem Rahmen 4 der Stütz- einrichtung 2 gelagerte Schwenkwelle 36 aufweist, mit der drehfest ein Schwenkhebel 38 verbunden ist. DerFIG. 3 shows the furniture drive 18 according to the invention on a larger scale than in FIG. 2. The furniture drive 18 has an electric motor 20 which is fastened to a wall of the side rail 19 and which is connected via a gear arrangement 22 in rotary drive connection to a stationary spindle 24 of a spindle drive which can be driven in rotation. A spindle nut 26 is arranged on the spindle 26 in such a way that it cannot rotate and can move back and forth in the axial direction in the direction of a double arrow 28. In accordance with the direction of rotation of the output shaft of the electric motor 20 and thus the direction of rotation of the spindle 24, the spindle nut 26 moves to the left or right along a linear movement axis 30 in FIG. 3. In this exemplary embodiment, the support device 2 has an adjustment fitting 32 according to the invention, which in this exemplary embodiment has a pivot shaft 36 which is pivotably mounted on the frame 4 of the support device 2 about a pivot axis 34 and to which a pivot lever 38 is connected in a rotationally fixed manner. The
Schwenkhebel 38 ist derart mit dem Oberkörperstützteil 12 und dem Kopfstützteil 14 verbunden, daß das Oberkörperstützteil 12 und das Kopfstützteil 14 beim Verschwenken der Schwenkwelle 36 um die Schwenkachse 34 verschwenkt werden. Der erfindungsgemäße Verstellbeschlag 32 weist ein drehfest mit der Schwenkwelle 36 verbundenes Schwenkelement auf, das bei diesem Ausführungsbeispiel als Zahnradsegment 40 ausgebildet ist und sich in Eingriff mit einem flexiblen Zugmittel in Form einer Kette 42 befindet, deren eines Ende an dem Zahnradsegment 40 und deren anderes Ende an der Spindelmutter 26 festgelegt ist. Die Kette 42 bildet bei diesem Ausführungsbeispiel ein entlang der linearen Bewegungs- achse 30 bewegliches Antriebsmittel des Möbelantriebs 18.The pivot lever 38 is connected to the upper body support part 12 and the head support part 14 in such a way that the upper body support part 12 and the head support part 14 are pivoted about the pivot axis 34 when the pivot shaft 36 is pivoted. The adjustment fitting 32 according to the invention has a swivel element which is connected to the swivel shaft 36 in a manner fixed against relative rotation, which in this exemplary embodiment is designed as a gear segment 40 and engages in the form of a flexible traction means a chain 42 is located, one end of which is fixed to the gear segment 40 and the other end to the spindle nut 26. In this exemplary embodiment, the chain 42 forms a drive means of the furniture drive 18 that is movable along the linear movement axis 30.
Erfindungsgemäß sind Mittel vorgesehen, die das Antriebsmittel, bei dem Ausführungsbeispiel gemäß Fig. 1 also die Kette 42, während der Verstellbewegung an einem entlang der linearen Bewegungsachse 30 im wesentlichen ortsfesten Punkt P mit dem das Schwenkelement bildenden Zahnradsegment 40 in Eingriff halten. Bei dem Ausführungsbeispiel gemäß Fig. 1 sind diese Mittel dadurch gebildet, daß das Zahnradsegment 40 als nach Art einer Kurvenscheibe ausgebildetes Führungselement für die Kette 42 ausgebildet ist. Das Zahnradsegment 40 weist bei diesem Ausführungsbeispiel eine im wesentlichen kreisbogenförmig begrenzte Kontur auf und ist als Viertelkreissegment ausgebildet. Während der Verstell - bewegung verschwenkt das Zahnradsegment 40 um dieAccording to the invention, means are provided which hold the drive means, in the exemplary embodiment according to FIG. 1 the chain 42, in engagement with the gearwheel segment 40 forming the pivoting element at a point P which is essentially fixed along the linear movement axis 30. In the exemplary embodiment according to FIG. 1, these means are formed in that the gear segment 40 is designed as a guide element for the chain 42 designed in the manner of a cam disk. In this exemplary embodiment, the gear segment 40 has an essentially delimited circular arc shape and is designed as a quarter circle segment. During the adjustment movement, the gear segment 40 pivots about the
Schwenkachse 34, wobei sich der Umschlingungswinkel der Kette 42 um das Zahnradsegement 40 ändert. Hierbei ist die Kette 24 jedoch stets an dem entlang der linearen Bewegungsachse 30 im wesentlichen ortsfesten Punkt P mit dem Zahnradsegment 40 in Eingriff gehalten, so daß die wirksame Länge des in Fig. 3 durch eine strichpunktierte Linie 44 symbolisierten Hebelarmes, mit dem die Kette 42 an der Schwenkwelle 36 angreift, während der Verstellbewegung im wesentlichen unverändert bleibt. Die Funktionsweise des erfindungsgemäßen Möbel - antriebs 18 ist wie folgt:Pivot axis 34, the wrap angle of chain 42 changing around gear segment 40. Here, however, the chain 24 is always held in engagement with the gearwheel segment 40 at the point P, which is essentially stationary along the linear movement axis 30, so that the effective length of the lever arm symbolized in FIG. 3 by a dash-dotted line 44, with which the chain 42 engages the pivot shaft 36 while the adjustment movement remains essentially unchanged. The mode of operation of the furniture drive 18 according to the invention is as follows:
Zum Verstellen des Oberkörperstützteiles 12 und des KopfStützteiles 14 aus einer in der Zeichnung nicht dargestellten Ausgangslage der Verstellbewegung, in der das Oberkörperstützteil 12 und das Kopfstützteil 14 zusammen mit dem mittleren Stützteil 6 eine horizontale Stützebene aufspannen, in eine in Fig. 2 dargestellte Verstellage, treibt der Elektromotor 20 die Spindel 24 über die Getriebeanordnung 22 derart an, daß sie dieFor adjusting the upper body support part 12 and the head support part 14 from an initial position of the adjustment movement, not shown in the drawing, in which the upper body support part 12 and the head support part 14 together with the middle support part 6 span a horizontal support plane, into an adjustment position shown in FIG. 2, the electric motor 20 drives the spindle 24 via the gear arrangement 22 in such a way that they
Spindelmutter 26 in Fig. 3 nach rechts bewegt. Hierbei befindet sich die Kette 42 mit der Verzahnung des Zahnradsegmentes 40 in Eingriff, so daß das Zahnradsegment 40 bei einer Bewegung der Spindelmutter 26 in Fig. 3 nach rechts in Fig. 3 um die Schwenkachse 4 im Uhrzeigersinn verschwenkt wird. Aufgrund der drehfesten Verbindung zwischen dem Schwenkhebel 38 und der Schwenkwelle 36 wird hierbei auch der Schwenkhebel 38 in Fig. 3 im Uhrzeigersinn verschwenkt, so daß das Oberkörper- stützteil 12 und das Kopfstützteil 14 in Fig. 1 im Uhrzeigersinn verschwenkt werden.Spindle nut 26 in Fig. 3 moved to the right. Here, the chain 42 is in engagement with the toothing of the gear segment 40, so that the gear segment 40 is pivoted clockwise in FIG. 3 when the spindle nut 26 is moved in FIG. 3 to the right in FIG. 3. Because of the rotationally fixed connection between the pivot lever 38 and the pivot shaft 36, the pivot lever 38 in FIG. 3 is also pivoted clockwise, so that the upper body support part 12 and the headrest part 14 in FIG. 1 are pivoted clockwise.
Während der Verstellbewegung befindet sich die Kette 42 an dem Punkt P stets in Eingriff mit dem Zahnradsegment 40, so daß sich die wirksame Länge des He- beiarmes 44, mit dem die Kette 42 an der Schwenkwelle 36 angreift, sich während der Verstellbewegung nicht ändert . Da sich die wirksame Länge des Hebelarmes 44 während der Verstellbewegung nicht ändert, bleibt bei konstantem Antriebsdrehmoment des Elektromotors 20 die mittels des Möbelantriebs 18 aufbringbare, auf dasDuring the adjustment movement, the chain 42 is always in engagement with the gearwheel segment 40 at the point P, so that the effective length of the auxiliary arm 44, with which the chain 42 engages the pivot shaft 36, does not change during the adjustment movement. Since the effective length of the lever arm 44 does not change during the adjustment movement, when the drive torque of the electric motor 20 remains constant, that which can be applied by means of the furniture drive 18 remains on the
Oberkörperstützteil 12 und das Kopfstützteil 14 wirkende Verstellkraft während der Verstellbewegung im wesentlichen nicht. Somit lassen sich mittels des erfindungsgemäßen Möbelantriebs 18 während der gesamten Ver- Stellbewegung im wesentlichen konstante Kräfte auf das Oberkörperstützteil 12 und das Kopfstützteil 14 ausüben.Upper body support part 12 and the head support part 14 acting adjusting force essentially during the adjustment movement. Thus, by means of the furniture drive 18 according to the invention, essentially constant forces can be exerted on the upper body support part 12 and the head support part 14 during the entire adjustment movement.
In Fig. 4 ist ein weiteres Ausführungsbeispiel eines erfindungsgemäßen Möbelantriebs 18 dargestellt, das sich von dem Ausführungsbeispiel gemäß Fig. 3 dadurch unterscheidet, daß das Antriebsmittel anstelle einer Kette ein flexibles Seil 46 aufweist. Das mit dem Schwenkhebel 38 drehfest verbundene Schwenkelement, das bei diesem Ausführungsbeispiel ein nach Art einer Kurvenscheibe ausgebildetes Führungselement für das Seil 46 bildet, ist bei diesem Ausführungsbeispiel als nach Art einer Seiltrommel wirkende Seilscheibe 48 ausgebildet. Ein Ende des Seiles 46 ist an der Seilscheibe 48 festgelegt, während das andere Ende an der Spindel - mutter 26 festgelegt ist. Bei diesem Ausführungsbei- spiel befindet sich das Seil 46 während der Verstellbewegung an einem entlang der linearen Bewegungsachse 30 im wesentlichen ortsfesten Punkt P mit der Seil- Scheibe 48 in Eingriff, so daß sich die wirksame Länge des Hebelarmes 44, mit dem das Seil 46 an der Schwenkwelle 36 angreift, während der Verstellbewegung im wesentlichen nicht ändert.4 shows a further exemplary embodiment of a furniture drive 18 according to the invention, which differs from the exemplary embodiment according to FIG. 3 in that the drive means has a flexible rope 46 instead of a chain. The swivel element which is connected in a rotationally fixed manner to the swivel lever 38 and which, in this exemplary embodiment, forms a guide element for the cable 46 designed in the manner of a cam plate, is designed in this exemplary embodiment as a pulley 48 acting in the manner of a cable drum. One end of the rope 46 is fixed to the pulley 48, while the other end is fixed to the spindle nut 26. In this exemplary embodiment, the cable 46 is in engagement with the cable pulley 48 at a point P which is substantially fixed along the linear movement axis 30 during the adjustment movement, so that the effective length of the lever arm 44 with which the cable 46 is attached the pivot shaft 36 engages during the adjustment movement essentially does not change.
Aus Fig. 5, die eine Ansicht von links in Fig. 4 zeigt, ist ersichtlich, daß die Seilscheibe 48 durch zwei miteinander verbundene Platten 44 gebildet ist, deren der Schwenkachse 34 abgewandten Enden so abgebogen sind, daß eine Nut 54 gebildet ist, in der das Seil 46 geführt ist. Durch die Aufnahme des Seil 46 in der Nut 54 ist verhindert, daß das Seil 46 während der Verstellbewegung von der Seilscheibe 48 abrutscht.From Fig. 5, which shows a view from the left in Fig. 4, it can be seen that the pulley 48 is formed by two interconnected plates 44 whose ends facing away from the pivot axis 34 are bent so that a groove 54 is formed in of the rope 46 is guided. The inclusion of the rope 46 in the groove 54 prevents the rope 46 from slipping off the rope pulley 48 during the adjustment movement.
In Fig. 6 ist ein drittes Ausführungsbeispiel einer erfindungsgemäßen Möbelantriebs 18 dargestellt, das sich von dem Ausführungsbeispiel gemäß Fig. 3 dadurch unterscheidet, daß das Antriebsmittel anstelle einer Kette 42 eine Zahnstange 56 aufweist, die an das dem Zahnradsegment 40 zugewandte Ende der Spindelmutter 26 angeformt ist. Die Zahnstange 56 und die Spindelmutter 26 können beispielsweise einstückig durch ein Formteil aus Kunststoff gebildet sein. Die Zahnstange 56 weist eine Verzahnung auf, die zu der Verzahnung des Zahnradsegmentes 40 im wesentlichen komplementär ausgebildet ist. Bei diesem Ausführungsbeispiel ist die Zahn- Stange 56 während der Verstellbewegung an einem entlang der linearen Bewegungsachse 30 im wesentlichen ortsfesten Punkt P mit dem Zahnradsegment 40 in Eingriff gehalten, so daß sich die Länge des Hebelarmes, mit dem die Zahnstange 56 an der Schwenkwelle 36 angreift, im wesentlichen nicht ändert.6 shows a third exemplary embodiment of a furniture drive 18 according to the invention, which differs from the exemplary embodiment according to FIG. 3 in that the drive means instead of a chain 42 has a toothed rack 56 which is molded onto the end of the spindle nut 26 facing the gear segment 40 is. The rack 56 and the spindle nut 26 can, for example, in one piece through a molded part be made of plastic. The rack 56 has a toothing which is essentially complementary to the toothing of the gear segment 40. In this exemplary embodiment, the toothed rack 56 is held in engagement with the gearwheel segment 40 at a point P which is substantially stationary along the linear movement axis 30, so that the length of the lever arm with which the toothed rack 56 engages on the pivot shaft 36 increases , essentially does not change.
Der erfindungsgemäße Möbelantrieb 18 ist einfach und kostengünstig herstellbar und robust im Aufbau. The furniture drive 18 according to the invention is simple and inexpensive to manufacture and robust in construction.

Claims

Patentansprüche claims
1. Elektromotorischer Möbelantrieb zum' Verstellen von Teilen eines Möbels relativ zueinander,1. Electromotive furniture drive for ' adjusting parts of a piece of furniture relative to one another,
mit einem entlang einer linearen Bewegungsachse linear beweglichen Antriebsmittel zum Verschwenken eines inwith a linearly movable drive means along a linear movement axis for pivoting an in
Montageposition des Möbelantriebs mit einem zu verstellenden Teil des Möbels in WirkungsVerbindung stehenden, um eine Schwenkachse verschwenkbaren Schwenkelementes,Mounting position of the furniture drive with a part of the piece of furniture to be adjusted which is operatively connected and can be pivoted about a pivot axis,
dadurch gekennzeichnet,characterized,
daß Mittel vorgesehen sind, die das Antriebsmittel während der Verstellbewegung an einem entlang der linearen Bewegungsachse (30) im wesentlichen ortsfesten Punkt P mit dem Schwenkelement in Eingriff . halten.that means are provided which engage the drive means with the pivoting element during the adjustment movement at a point P which is essentially stationary along the linear movement axis (30). hold.
2. Möbelantrieb nach Anspruch 1, dadurch gekennzeichnet, daß die Mittel, die das Antriebsmittel während der Verstellbewegung an einem entlang der linearen Bewe- gungsachse (30) im wesentlichen ortsfesten Punkt (P) in Eingriff mit dem Schwenkelement halten, ein nach Art einer Kurvenscheibe ausgebildetes Führungselement für das Antriebsmittel aufweisen, mit dem das Antriebsmittel in Montageposition des Möbelantriebs (18) in Ein- griff steht.2. Furniture drive according to claim 1, characterized in that the means which hold the drive means during the adjustment movement at a substantially fixed point (P) along the linear movement axis (30) in engagement with the pivoting element, in the manner of a cam have formed guide element for the drive means with which the drive means is engaged in the assembly position of the furniture drive (18).
3. Möbelantrieb nach Anspruch 2 ,. dadurch gekennzeichnet, daß das Führungselement eine im wesentlichen kreisbogenförmig begrenzte Kontur aufweist . 3. Furniture drive according to claim 2,. characterized in that the guide element has an essentially circular arc limited contour.
4. Möbelantrieb nach Anspruch 3, dadurch gekennzeichnet, daß das Führungselement im wesentlichen als Kreissegment, insbesondere Viertelkreissegment, ausgebildet ist .4. Furniture drive according to claim 3, characterized in that the guide element is designed essentially as a circular segment, in particular quarter-circle segment.
5. Möbelantrieb nach Anspruch 2, dadurch gekennzeichnet, daß das Führungselement eine im wesentlichen kurvenförmige Kontur mit sich in Umfangsrichtung des Führungselementes wenigstens abschnittsweise änderndem Abstand der Begrenzungsfläche der Kontur von der Schwenkachse (34) aufweist.5. Furniture drive according to claim 2, characterized in that the guide element has a substantially curved contour with changing in the circumferential direction of the guide element at least in sections changing distance of the boundary surface of the contour from the pivot axis (34).
6. Möbelantrieb nach Anspruch 1, dadurch gekennzeichnet, daß das Antriebsmittel als Zugmittel ausgebildet ist.6. Furniture drive according to claim 1, characterized in that the drive means is designed as a traction means.
7. Möbelantrieb nach Anspruch 1, dadurch gekennzeichnet, daß das Antriebsmittel als Druckmittel ausgebildet ist .7. Furniture drive according to claim 1, characterized in that the drive means is designed as a pressure medium.
8. Möbelantrieb nach Anspruch 6, dadurch gekennzeichnet, daß das Antriebsmittel flexibel ausgebildet ist.8. Furniture drive according to claim 6, characterized in that the drive means is flexible.
9. Möbelantrieb nach Anspruch 7, dadurch gekenn- zeichnet, daß das Antriebsmittel im wesentlichen starr ausgebildet ist.9. Furniture drive according to claim 7, characterized in that the drive means is substantially rigid.
10. Möbelantrieb nach Anspruch 1, dadurch gekennzeichnet, daß das Antriebsmittel an seiner in. Montageposi- tion des Möbelantriebs mit dem Führungselement in Eingriff stehenden Fläche eine Verzahnung aufweist zum Zusammenwirken mit einer hierzu im wesentlichen komplementären Verzahnung des Führungselementes. 10. Furniture drive according to claim 1, characterized in that the drive means on its in. Assembly position of the furniture drive with the guide element in engagement surface has a toothing for cooperation with an essentially complementary toothing of the guide element.
11. Möbelantrieb nach Anspruch 10, dadurch gekennzeichnet, daß das Führungselement als Zahnrad oder Zahnradsegment (40) ausgebildet ist.11. Furniture drive according to claim 10, characterized in that the guide element is designed as a gear or gear segment (40).
12. Möbelantrieb nach Anspruch 11, dadurch gekennzeichnet, daß das Antriebsmittel eine Kette (42) aufweist, derart, daß ein Kettentrieb gebildet ist.12. Furniture drive according to claim 11, characterized in that the drive means has a chain (42), such that a chain drive is formed.
13. Möbelantrieb nach Anspruch 11, dadurch gekenn- zeichnet, daß das Antriebsmittel eine Zahnstange (56) aufweist, derart, daß ein Zahnstangentrieb gebildet ist .13. Furniture drive according to claim 11, characterized in that the drive means has a rack (56), such that a rack and pinion drive is formed.
14. Möbelantrieb nach Anspruch 1, dadurch gekennzeich- net, daß das Antriebsmittel ein Seil (46) oder Band aufweist zum Zusammenwirken mit einem nach Art einer Seiltrommel oder Seilscheibe (48) ausgebildeten Führungselement, derart, daß ein Seiltrieb gebildet ist.14. Furniture drive according to claim 1, characterized in that the drive means has a rope (46) or band for cooperation with a guide element designed in the manner of a rope drum or rope pulley (48), in such a way that a rope drive is formed.
15. Möbelantrieb nach Anspruch 2, dadurch gekennzeichnet, daß das Führungselement einstückig mit dem Schwenkelement ausgebildet oder durch das Schwenkelement gebildet ist.15. Furniture drive according to claim 2, characterized in that the guide element is integrally formed with the pivot element or is formed by the pivot element.
16. Möbelantrieb nach Anspruch 1, dadurch gekennzeichnet, daß das linear bewegliche Antriebsmittel mit einem linear beweglichen Antriebselement eines Spindeltriebes verbunden ist oder durch das linear bewegliche Antriebselement eines Spindeltriebes gebildet ist.16. Furniture drive according to claim 1, characterized in that the linearly movable drive means is connected to a linearly movable drive element of a spindle drive or is formed by the linearly movable drive element of a spindle drive.
17. Möbelantrieb nach Anspruch 16, dadurch gekennzeichnet, daß das linear bewegliche Antriebselement des Spindeltriebes eine verdrehsicher und in Axialrichtung beweglich auf einer drehantreibbaren Spindel (24) an- geordnete Spindelmutter (26) ist.17. Furniture drive according to claim 16, characterized in that the linearly movable drive element of the spindle drive is secured against rotation and movable in the axial direction on a rotatably drivable spindle (24). ordered spindle nut (26).
18. Möbelantrieb nach Anspruch 16, dadurch gekennzeichnet, daß das linear bewegliche Antriebselement des Spindeltriebs eine in ihrer Axialrichtung beweglich und verdrehsicher gelagerte Spindel ist, auf der eine ortsfeste, drehantreibbare Spindelmutter angeordnet ist.18. Furniture drive according to claim 16, characterized in that the linearly movable drive element of the spindle drive is a movable in its axial direction and non-rotatably mounted spindle on which a fixed, rotatably driven spindle nut is arranged.
19. Möbelantrieb nach Anspruch 8, dadurch gekennzeich- net, daß das Antriebsmittel an dem Schwenkelement oder dem Führungselement festgelegt ist.19. Furniture drive according to claim 8, characterized in that the drive means is fixed to the pivoting element or the guide element.
20. Elektromotorisch verstellbare Stützeinrichtung für eine Polsterung eines Sitz- und/oder Liegemöbels, ins- besondere eine Matratze eines Bettes, mit wenigstens zwei relativ zueinander verstellbaren Stützteilen und20. Electromotically adjustable support device for upholstering a seating and / or reclining furniture, in particular a mattress of a bed, with at least two supporting parts and
mit einem elektromotorischen Möbelantrieb zum Verstellen der Stützteile relativ zueinander, wobei der Möbel- antrieb ein entlang einer linearen Bewegungsachse linear bewegliches Antriebsmittel zum Verschwenken eines in Montageposition des Möbelantriebs mit wenigstens einem der zu verstellenden Stützteile des Möbels in Wirkungsverbindung stehendes, um eine Schwenkachse verschwenk- bares Schwenkelement aufweist,with an electromotive furniture drive for adjusting the support parts relative to one another, the furniture drive having a linearly movable drive means along a linear movement axis for pivoting a connection which is in operative connection with at least one of the support parts of the furniture to be adjusted and which can be pivoted about a pivot axis Has pivoting element,
dadurch gekennzeichnet,characterized,
daß Mittel vorgesehen sind, die das Antriebsmittel wäh- rend der Verstellbewegung an einem entlang der linearen Bewegungsachse (30) im wesentlichen ortsfesten Punkt (P) mit dem Schwenkelement in Eingriff halten.that means are provided which hold the drive means in engagement with the pivoting element during the adjustment movement at a point (P) which is essentially fixed along the linear movement axis (30).
21. Stützeinrichtung nach Anspruch 20, dadurch gekenn- zeichnet, daß die Mittel, die das Antriebsmittel während der Verstellbewegung an einem entlang der linearen Bewegungsachse (30) im wesentlichen ortsfesten Punkt (P) in Eingriff mit dem Schwenkelement halten, ein nach Art einer Kurvenscheibe ausgebildetes Führungselement für das Antriebsmittel aufweisen, mit dem das Antriebsmittel in Montageposition des Möbelantriebs in Eingriff steht .21. Support device according to claim 20, characterized is characterized in that the means which hold the drive means during the adjustment movement at a point (P) which is essentially fixed along the linear movement axis (30) in engagement with the pivoting element have a cam element designed for the drive means with which the Drive means is engaged in the assembly position of the furniture drive.
22. Stützeinrichtung nach Anspruch 21, dadurch gekennzeichnet, daß das Führungselement eine im wesentlichen kreisbogenförmig begrenzte Kontur aufweist.22. Support device according to claim 21, characterized in that the guide element has a substantially circular arc limited contour.
23. Stützeinrichtung nach Anspruch 22, dadurch gekenn- zeichnet, daß das Führungselement im wesentlichen als23. Support device according to claim 22, characterized in that the guide element substantially as
Kreissegment, insbesondere Viertelkreissegment, ausgebildet ist.Circle segment, in particular quarter circle segment, is formed.
24. Stützeinrichtung nach Anspruch 21, dadurch gekenn- zeichnet, daß das Führungselement eine im wesentlichen kurvenförmige Kontur mit sich in Umfangsrichtung des Führungselementes wenigstens abschnittsweise änderndem Abstand der Begrenzungsfläche der Kontur von der Schwenkachse aufweist.24. Support device according to claim 21, characterized in that the guide element has a substantially curved contour with the distance of the boundary surface of the contour from the pivot axis changing at least in sections in the circumferential direction of the guide element.
25. Stützeinrichtung nach Anspruch 20, dadurch gekennzeichnet, daß das Antriebsmittel als Zugmittel ausgebildet ist .25. Support device according to claim 20, characterized in that the drive means is designed as a traction means.
26. Stützeinrichtung nach Anspruch 20, dadurch gekennzeichnet, daß das Antriebsmittel als Druckmittel ausgebildet ist .26. Support device according to claim 20, characterized in that the drive means is designed as a pressure medium.
27. Stützeinrichtung nach Anspruch 25, dadurch gekenn- zeichnet, daß das Antriebsmittel flexibel ausgebildet ist.27. Support device according to claim 25, characterized in records that the drive means is flexible.
28. .Stützeinrichtung nach Anspruch 26, dadurch gekenn- zeichnet, daß das Antriebsmittel im wesentlichen starr ausgebildet ist. 28. Support device according to claim 26, characterized in that the drive means is essentially rigid.
29. Stützeinrichtung nach Anspruch 20, dadurch gekennzeichnet, daß das Antriebsmittel an seiner in Montage- position des Möbelantriebs mit dem Führungselement in Eingriff stehenden Fläche eine Verzahnung aufweist zum Zusammenwirken mit einer hierzu im wesentlichen komplementären Verzahnung des Führungselementes.29. Support device according to claim 20, characterized in that the drive means on its in the mounting position of the furniture drive with the guide element in engagement surface has a toothing for cooperation with an essentially complementary toothing of the guide element.
30. Stützeinrichtung nach Anspruch 29, dadurch gekennzeichnet, daß das Führungselement als Zahnrad oder Zahnradsegment (40) ausgebildet ist.30. Support device according to claim 29, characterized in that the guide element is designed as a gear or gear segment (40).
31. Stützeinrichtung nach Anspruch 30, dadurch gekenn- zeichnet, daß das Antriebsmittel eine Kette (42) aufweist, derart, daß ein Kettentrieb gebildet ist.31. Support device according to claim 30, characterized in that the drive means has a chain (42) such that a chain drive is formed.
32. Stützeinrichtung nach Anspruch 30, dadurch gekennzeichnet, daß das Antriebsmittel eine Zahnstange (56) aufweist, derart, daß ein Zahnstangentrieb gebildet ist .32. Support device according to claim 30, characterized in that the drive means has a rack (56), such that a rack and pinion drive is formed.
33. .Stützeinrichtung nach Anspruch 20, dadurch gekennzeichnet, daß das Antriebsmittel ein Seil (46) oder Band aufweist zum Zusammenwirken mit einem nach Art einer Seiltrommel oder Seilscheibe (48) ausgebildeten Führungselement, derart, daß ein Seiltrieb gebildet ist . 33.. Support device according to claim 20, characterized in that the drive means comprises a rope (46) or band for cooperation with a guide element designed in the manner of a rope drum or rope pulley (48), such that a rope drive is formed.
34. Stützeinrichtung nach Anspruch 21, dadurch gekennzeichnet, daß das Führungselement einstückig mit dem Schwenkelement ausgebildet oder durch das Schwenkelement gebildet ist.34. Support device according to claim 21, characterized in that the guide element is integrally formed with the pivot element or is formed by the pivot element.
35. Stützeinrichtung nach Anspruch 20, dadurch gekennzeichnet, daß das linear bewegliche Antriebsmittel mit einem linear beweglichen Antriebselement- eines Spindel - triebes verbunden ist oder durch das linear bewegliche Antriebselement eines Spindeltriebes gebildet ist.35. Support device according to claim 20, characterized in that the linearly movable drive means is connected to a linearly movable drive element of a spindle drive or is formed by the linearly movable drive element of a spindle drive.
36. Stützeinrichtung nach Anspruch 35, dadurch gekennzeichnet, daß das linear bewegliche Antriebselement des Spindeltriebes eine verdrehsicher und in Axialrichtung beweglich auf einer drehantreibbaren Spindel (24) angeordnete Spindelmutter (26) ist.36. Support device according to claim 35, characterized in that the linearly movable drive element of the spindle drive is a non-rotatable and axially movable on a rotationally driven spindle (24) arranged spindle nut (26).
37. Stützeinrichtung nach Anspruch 35, dadurch gekennzeichnet, daß das linear bewegliche Antriebselement des Spindeltriebs eine in ihrer Axialrichtung beweglich und verdrehsicher gelagerte Spindel ist, auf der eine ortsfeste, drehantreibbare Spindelmutter angeordnet ist.37. Support device according to claim 35, characterized in that the linearly movable drive element of the spindle drive is a spindle which is movably and non-rotatably mounted in its axial direction and on which a stationary, rotationally drivable spindle nut is arranged.
38. Stützeinrichtung nach Anspruch 27, dadurch gekenn- zeichnet, daß das Antriebsmittel an dem Schwenkelement oder dem Führungselement festgelegt ist.38. Support device according to claim 27, characterized in that the drive means is fixed to the pivoting element or the guide element.
39. Verstellbeschlag für verstellbare Teile eines Möbels,39. adjustable fitting for adjustable parts of a piece of furniture,
mit einem um eine Schwenkachse verschwenkbaren Schwenk- element, das in Montageposition des Verstellbeschlages mit einem zu verstellenden Teil des Möbels in Wirkungsverbindung steht und mittels eines entlang einer linea- ren Bewegungsachse linear beweglichen Antriebsmittels verschwenkbar ist, dadurch gekennzeichnet, daß das Schwenkelement derart ausgebildet ist, daß die Antriebsmittel während der Verstellbewegung an einem ent- lang der linearen Bewegungsachse (30) im wesentlichen ortsfesten Punkt (P) mit dem Schwenkelement in Eingriff gehalten sind.with a pivoting element which can be pivoted about a pivot axis, which is in operative connection with a part of the piece of furniture to be adjusted in the installation position of the adjustment fitting and by means of a Ren axis of movement linearly movable drive means is pivotable, characterized in that the pivoting element is designed such that the drive means are held in engagement with the pivoting element at a substantially fixed point (P) along the linear movement axis (30) during the adjustment movement.
40. Verstellbeschlag nach Anspruch 39, dadurch gekenn- zeichnet, daß das Schwenkelement ein nach Art einer40. Adjustment fitting according to claim 39, characterized in that the pivoting element is in the manner of a
Kurvenscheibe ausgebildetes Führungselement für das Antriebsmittel aufweist .Has cam formed guide element for the drive means.
41. Verstellbeschlag nach Anspruch 40, dadurch gekenn- zeichnet, daß das Führungselement als Zahnrad oder41. Adjustment fitting according to claim 40, characterized in that the guide element as a gear or
Zahnradsegment ausgebildet ist .Gear segment is formed.
42. Verstellbeschlag nach Anspruch 40, dadurch gekennzeichnet, daß das Führungselement nach Art einer Seil- trommel oder Seilscheibe (48) ausgebildet ist.42. Adjustment fitting according to claim 40, characterized in that the guide element is designed in the manner of a rope drum or rope pulley (48).
43. Verstellbeschlag nach Anspruch 39, dadurch gekennzeichnet, daß das Führungselement einstückig mit dem Schwenkelement oder durch das Schwenkelement gebildet ist.43. Adjustment fitting according to claim 39, characterized in that the guide element is formed in one piece with the pivot element or by the pivot element.
44. Verstellbeschlag nach Anspruch 39, dadurch gekennzeichnet, daß das Führungselement eine im wesentlichen kreisbogenförmig begrenzte Kontur aufweist.44. Adjustment fitting according to claim 39, characterized in that the guide element has a substantially circular arc limited contour.
45. Verstellbeschlag nach Anspruch 39, dadurch gekennzeichnet, daß das Führungselement im wesentlichen als Kreissegment, insbesondere Viertelkreissegment, ausgebildet ist. 45. Adjustment fitting according to claim 39, characterized in that the guide element is designed essentially as a circular segment, in particular a quarter-circle segment.
46. Verstellbeschlag nach Anspruch 39, dadurch gekennzeichnet, daß das Führungselement eine im wesentlichen kurvenförmige Kontur mit sich in Umfangsrichtung des Führungselementes wesentlich abschnittsweise änderndem Abstand der Begrenzungsfläche der Kontur von der Schwenkachse (34) aufweist. 46. Adjustment fitting according to claim 39, characterized in that the guide element has a substantially curved contour with the distance of the boundary surface of the contour from the pivot axis (34) changing in sections in the circumferential direction of the guide element.
EP03763648A 2002-07-10 2003-06-20 Electromotive furniture drive Expired - Lifetime EP1521539B2 (en)

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DE10231290A DE10231290B3 (en) 2002-07-10 2002-07-10 Electromotive furniture drive
PCT/EP2003/006548 WO2004006723A1 (en) 2002-07-10 2003-06-20 Electromotive furniture drive

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CN (1) CN100339032C (en)
AT (1) ATE353577T1 (en)
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DE10046750C1 (en) * 2000-09-21 2002-04-18 Cimosys Ag Goldingen Furniture drive designed as a double drive
DE10046752C1 (en) * 2000-09-21 2002-03-14 Westmont Design Gmbh Double drive for furniture adjustment has support face for actuator lower than pivot axis, to support pivot lever

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Title
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CN1665431A (en) 2005-09-07
ATE353577T1 (en) 2007-03-15
ES2282672T3 (en) 2007-10-16
JP4317129B2 (en) 2009-08-19
WO2004006723A1 (en) 2004-01-22
EP1521539B2 (en) 2013-02-20
JP2005532132A (en) 2005-10-27
DE50306519D1 (en) 2007-03-29
DE10231290B3 (en) 2004-01-22
EP1521539B1 (en) 2007-02-14
AU2003250841A1 (en) 2004-02-02
CN100339032C (en) 2007-09-26

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