EP1294255A1 - Furniture drive device for moving parts of a piece of furniture in relation to each other - Google Patents

Furniture drive device for moving parts of a piece of furniture in relation to each other

Info

Publication number
EP1294255A1
EP1294255A1 EP01947390A EP01947390A EP1294255A1 EP 1294255 A1 EP1294255 A1 EP 1294255A1 EP 01947390 A EP01947390 A EP 01947390A EP 01947390 A EP01947390 A EP 01947390A EP 1294255 A1 EP1294255 A1 EP 1294255A1
Authority
EP
European Patent Office
Prior art keywords
furniture
furniture drive
drive according
spindle
assigned
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
EP01947390A
Other languages
German (de)
French (fr)
Other versions
EP1294255B1 (en
Inventor
Eckhart Dewert
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.)
Linak AS
Original Assignee
Cimosys AG
Cimosys Ltd
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
Application filed by Cimosys AG, Cimosys Ltd filed Critical Cimosys AG
Publication of EP1294255A1 publication Critical patent/EP1294255A1/en
Application granted granted Critical
Publication of EP1294255B1 publication Critical patent/EP1294255B1/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
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A47C1/0244—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination by fluid means
    • 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 a furniture drive of the type mentioned in the preamble of claim 1 for adjusting parts of a piece of furniture relative to one another.
  • DE 198 43 259 Cl is an adjustable bed slatted frame with a swivel drive
  • Known furniture drive which serves for pivoting a supporting part of the bed slatted frame relative to the frame.
  • the furniture drive has a first part and a second part which is designed as a pivoting lever and can be pivoted relative to the first part and is operatively connected to the supporting part to be adjusted.
  • the furniture drive known from the publication has a rope, band or chain-shaped traction means, the first end of which is fixed to the pivoting lever and the second end of which is fixed to a motor-driven winding device which serves to wind up the traction means.
  • the winding device winds up the traction means, as a result of which the pivoting lever pivots and causes the support part to pivot relative to the frame of the bed slatted frame.
  • a disadvantage of the known furniture drive is that with constant torque of the motor which drives the opening device, the force exerted on the supporting part decreases with increasing winding radius of the traction means on the shaft of the outside device.
  • a furniture drive is known from DE 34 09 223 C2, which is used for pivoting a lying surface of a couch that can be pivoted relative to a frame.
  • the furniture drive known from this document has a first part in the form of a pivot bearing which on the
  • Frame of the bed is arranged, as well as a second part pivotable relative to the first part in the form of a two-armed pivot lever, the first arm of which is operatively connected to the lying surface for pivoting the same.
  • the furniture drive has a pulling means in the form of a cable, the first end of which is fixed to the frame of the bed.
  • the traction means is guided in the manner of a pulley block via a deflection roller arranged on the second arm of the two-armed pivot lever and a deflection roller arranged on the frame of the bed, its second end being fixed to a shaft of a motor-driven winding device.
  • the winding device winds up the traction means, whereby the pivot lever pivots about its pivot axis and causes the lying surface to pivot.
  • a furniture drive of the type in question is known from FR 2 699 910 A1 and US Pat. No. 5,528,948, which is parallel to it, and has a first part and a second part which is linearly adjustable relative to the first part.
  • the known furniture drive has a rope, band or chain-shaped traction device, the first of which End is fixed to the first part and which is operatively connected to drive means for adjusting the parts relative to one another, the traction means being guided in the manner of a pulley alternately over deflections associated with the first part and deflections associated with the second part.
  • the drive means have a motor-driven winding device, on the shaft of which the second end of the traction means is fixed. To adjust the second part relative to the first part, the winding device winds up the traction means against the restoring force of spring means.
  • This known furniture drive also has the disadvantage that the forces which can be exerted on the second part decrease with increasing winding radius of the traction means on the shaft of the winding device.
  • a similar furniture drive is also known from FR 2 727 296.
  • the invention has for its object to provide a furniture drive of the type mentioned in the preamble of claim 1, with which high forces can be exerted on the second part relative to the first part over a wide adjustment range and which is simple and thus inexpensive to produce ,
  • the invention is solved by the teaching specified in claim 1.
  • the basic idea of the teaching according to the invention is to provide, instead of a winding device, a linearly movable drive element which is operatively connected to the traction means for adjusting the second part relative to the first part.
  • the furniture drive according to the invention is simple in construction and thus inexpensive to manufacture.
  • the furniture drive according to the invention is very compact in construction, in particular very flat. Because of this, the height of, for example, a slatted frame provided with a furniture drive according to the invention is only slightly greater than the height of a manually adjustable slatted frame without a drive. Due to the flat design, the furniture drive according to the invention also only slightly impairs the visual appearance of a slatted frame provided with such a drive.
  • the first part and the second part can be formed by parts of the furniture drive.
  • the first part can be formed by a housing of the furniture drive and the second part by a part that is adjustable relative to the housing.
  • the first and the second part have a suitable operative connection with the parts of the piece of furniture to be adjusted relative to one another.
  • the first part and the second part can also be formed directly by parts of a piece of furniture on which components of the furniture drive according to the invention are arranged.
  • the first end of the traction means can be fixed at any suitable point on the furniture drive or a piece of furniture which is provided with a furniture drive according to the invention. It is expedient the first end of the traction device is fixed to the second part.
  • This embodiment is simple in construction and therefore inexpensive to manufacture.
  • the second end of the traction means can also be fixed at any suitable point on the furniture drive or on a piece of furniture which is provided with a furniture drive according to the invention.
  • the second end of the traction means is expediently fixed on the linearly movable drive element. This embodiment is simple in construction and therefore inexpensive to manufacture.
  • the ends of the traction means can be fixed in any suitable manner, for example releasably by clamping.
  • the linearly movable drive element can be operatively connected to the traction means in any suitable manner.
  • the drive element can rest against a loop of the traction means formed by suitable deflections and exert a compressive force on the traction means during the adjustment movement such that the traction means adjusts the second part relative to the first part.
  • the linearly movable drive element is designed as a pulling element which exerts a pulling force on the pulling means in order to adjust the second part relative to the first part. This embodiment is particularly simple in construction and therefore inexpensive to manufacture.
  • the linearly movable drive element is a spindle nut, which is held against rotation and is movable in the axial direction on a rotationally drivable adjusting spindle.
  • This embodiment is robust and suitable for applying high forces.
  • Corresponding adjusting spindles and spin Del nuts are available as simple and inexpensive standard components, so that the structure of the furniture drive according to the invention is simple and therefore inexpensive.
  • the linear movement of the drive element can also be an approximately linear movement or a linear movement in sections.
  • the adjusting spindle is expediently designed as a threaded spindle.
  • the linearly movable drive element is a spindle which is adjustably mounted in its axial direction.
  • This embodiment is also simple in construction and robust.
  • a further development of the aforementioned embodiment provides that a stationary spindle nut which is arranged on the spindle and can be driven in rotation is provided for adjusting the spindle. Since appropriate spindles and spindle nuts are available as simple and inexpensive standard components, the structure of the furniture drive according to the invention is simple and therefore inexpensive.
  • the spindle is expediently designed as a threaded spindle.
  • the traction means is guided in the manner of an at least 2-leg pulley via a deflection assigned to the first part and a deflection assigned to the second part.
  • An extremely advantageous further development provides, however, that the traction means is guided in the manner of an at least 4-leg pulley system alternately over deflections assigned to the first part and deflections assigned to the second part.
  • any adjustment movements of the second part relative to the first part can be achieved, for example angular movements or linear movements.
  • An embodiment provides that the first part is pivotable relative to the second part, such that the furniture drive is designed as a swivel drive.
  • This embodiment is particularly well suited for adjusting support devices for upholstery of seating and / or reclining furniture, for example in the form of slatted frames, since the support parts of these support devices are generally pivotally connected to one another.
  • the furniture drive according to the invention is also suitable, for example, for adjusting the height of the entire support device, for example in hospital beds. Another further training provides that one of the
  • Parts has a pivot lever to which at least one deflection is assigned.
  • This embodiment is simple in construction and therefore inexpensive to manufacture.
  • the pivot lever can be operatively connected to the furniture in any suitable manner for adjusting an assigned part, for example via an adjusting lever.
  • Shaft is connectable, which is in the assembly position of the furniture with a part of the furniture for adjusting the same in operative connection.
  • This embodiment is simple in construction and particularly robust, so that with allow a particularly large force to be exerted on a furniture drive in accordance with this embodiment.
  • a further development of the aforementioned embodiment provides that the swivel lever can be positively connected to the shaft to form a rotationally fixed connection.
  • This embodiment is particularly robust and suitable for the transmission of particularly large forces.
  • the shaft has a non-circular cross-section and engages positively in a mounting position of the furniture drive in a recess of the pivot lever which is essentially complementary to the cross-section of the shaft.
  • This embodiment is also particularly simple in construction and robust.
  • the recess of the pivot lever is designed to be open in the radial direction of the shaft, locking means being provided for locking the shaft in the recess. This facilitates the insertion of the shaft into the recess when assembling the furniture drive according to the invention.
  • the locking means prevents the shaft from coming loose from the recess during the adjustment movement.
  • Another development of the embodiment with the swivel lever provides that it is designed as a two-armed lever, with each lever arm being assigned at least one deflection. In this way, a particularly compact structure of the furniture drive according to the invention is achieved.
  • a deflection, which is assigned to one of the parts, can be arranged on this part in accordance with the respective requirements. This results in a simple structure.
  • a deflection, which is assigned to a part can, however, also be arranged on an intermediate part which is in force transmission connection with this part, as is provided by another embodiment. In this way, the kinematics of the furniture drive can be adapted within wide limits to the respective requirements with regard to the space requirement and the arrangement of the components of the furniture drive.
  • the deflections can be formed by axes around which the traction means is guided.
  • the deflections are formed by deflection rollers. In this embodiment, the friction of the traction means at the deflections is reduced, so that the furniture drive according to the invention works with little friction.
  • the traction means is deflected in the manner of an at least 4-leg pulley and the deflections are designed as deflection rollers
  • the deflection rollers assigned to the first part have coaxial axes of rotation or are arranged on a common axis of rotation and / or that the deflection rollers assigned to the second part have coaxial axes of rotation or are arranged on a common axis of rotation.
  • the deflection rollers assigned to the first and the second part each form a compact, space-saving roller block.
  • the drive means expediently have at least one motor, in particular an electric motor.
  • the motor is in drive connection with the adjusting spindle via a gear.
  • the orientation of the output shaft of the motor relative to the adjusting spindle can be selected within wide limits by appropriate selection of the gear.
  • a motor-driven support device provided with a furniture drive according to the invention for upholstering seating and / or reclining furniture is specified in claim 28.
  • a further development of the support device according to the invention provides that it is designed as a slatted frame.
  • a seating and / or reclining furniture provided with a support device according to the invention is specified in claim 30.
  • the furniture according to the invention can be designed, for example, as a bed, lounger or armchair.
  • the piece of furniture according to the invention can be designed, for example, as the seat of a motor vehicle.
  • FIG. 3 shows a schematic side view of a first exemplary embodiment of a furniture drive according to the invention designed as a double drive
  • FIG. 4 shows the same representation as FIG. 3 shows a second exemplary embodiment of a furniture drive according to the invention designed as a double drive
  • Fig. 6 in the same representation as Fig. 5, the
  • FIG. 8 in the same representation as FIG. 7
  • FIG. 9 in the same representation as FIG. 5 shows a detail of a fifth exemplary embodiment of a furniture drive according to the invention in a first adjustment position
  • FIG. 10 in the same representation as FIG. 9 shows the exemplary embodiment according to FIG. ner second adjustment.
  • FIG. 1 shows an exemplary embodiment of a support device 2 according to the invention in the form of a slatted frame for supporting an upholstery (not shown in the drawing) of a seating and / or reclining furniture, for example a mattress of a bed.
  • the support device 2 has a plurality of support parts which can be pivoted relative to one another about parallel horizontal pivot axes and serves to support the upholstery of the seating and / or reclining furniture (not shown in the drawing).
  • the support device 2 has a central support part 4 which is articulated on one side and pivotable about a horizontal pivot axis with a leg support part 6, which is articulated on its side facing away from the central support part 4 and pivotable about a horizontal pivot axis with a calf support part 8 connected is.
  • the middle support part 4 is articulated on its side facing away from the leg support part 6 and pivotably connected to an upper body support part 10 about a horizontal pivot axis, which is articulated on its side facing away from the middle support part 4 and pivotably connected to a head support part 12 about a horizontal pivot axis.
  • Calf support part 8 relative to the central support part 4 is provided an adjusting lever 14, one end 16 of which is articulated to the calf support part 8 and the other end 18 of which is non-rotatable with a horizontal one Axis of rotation on a frame of the support device 2, not shown in the drawing, is rotatably mounted in the form of a square shaft.
  • FIG. 2 shows the support device according to FIG. 1 in a position in which the support parts 6, 8 and 10, 12 are pivoted relative to the central support part 4.
  • Furniture drives according to the invention are provided for pivoting the support parts 6, 8 and 10, 12 relative to the central support part 4 and are accommodated in a common housing 34 below the support device 2.
  • the furniture drives arranged in the housing 34 are carried by the shafts 20, 24, which in turn are rotatably mounted on the frame of the support device 2, not shown in the drawing.
  • the housing 34 can, for example, also be attached to the frame of the support device 2, which is not shown in the drawing.
  • In the housing 34 are two according to the invention
  • the structure and mode of operation of this exemplary embodiment of the furniture drive according to the invention are explained in more detail below with reference to the furniture drive 36.
  • the furniture drive 36 ' is constructed accordingly, its components being provided with reference symbols which correspond to the reference symbols of the components of the furniture drive 36.
  • the furniture drives 36, 36 ' are shown without the support device 2 for the sake of clarity.
  • one half of the housing 34 is omitted.
  • the furniture drive 36 has a first part, which in this exemplary embodiment is formed by the housing 34, and a second part, which in this exemplary embodiment is formed by a pivot lever 38, which is pivotably mounted on the housing 34 about a pivot axis 40.
  • the pivot lever 38 In the assembly position of the furniture drive 36, the pivot lever 38 is connected in a rotationally fixed manner to the rotatably mounted shaft 20 (not shown in FIG. 3), which is in operative connection with the calf support part 8 for pivoting the same via the adjusting lever 14.
  • the furniture drive 36 thus forms a swivel drive in this embodiment. '
  • the pivot lever 38 is positively connected to the shaft 20 in the assembly position to form a rotationally fixed connection (cf. FIG. 1).
  • the shaft 20 has a non-circular cross section in the form of a square and engages in a form-fitting manner in a recess 42 in the pivoting lever 38, which is essentially complementary to the cross section of the shaft 20 and is open to the side in the radial direction of the shaft 20.
  • the pivot lever 38 is designed in the embodiment as a one-armed lever.
  • the furniture drive 36 also has a flexible traction means, which in the exemplary embodiment a flexible flat drawstring 44 is formed.
  • the tension band 44 is in the manner of a pulley alternately via deflections arranged on the first part, that is to say the housing 34, in the form of rotatably mounted deflection rollers 46, 48 and one on the second part, thus the pivot lever 38, arranged deflection in the form of a rotatably mounted deflection roller 50.
  • the furniture drive 36 also has drive means which, according to the invention, have a linearly movable drive element which is operatively connected to the tension band 44 for adjusting the second part relative to the first part.
  • the linearly movable drive element is formed by a spindle nut 52, which is held against rotation and is movable in the axial direction in the direction of a double arrow 54 on a rotationally drivable threaded spindle 56.
  • the second end 57 of the tension band 44 is fixed to the spindle nut 52.
  • the threaded spindle 56 is connected via a bevel gear 58 to a rotary drive in the form of an electric motor 60 in a rotary drive connection, the output shaft 62 of which in FIG. 3 extends into the plane of the drawing and is thus arranged at an angle of 90 ° relative to the threaded spindle 56.
  • the electric motor 60 is arranged on an inner wall of the housing 34 and is controlled by a control device, not shown.
  • the threaded spindle 56 is rotatably supported by means of a ball bearing 64.
  • the mode of operation of the furniture drive 36 according to the invention is as follows:
  • the central support part 4 has the spindle nut 52 in the axial direction of the threaded spindle 56 in the region of the end of the threaded spindle 56 facing away from the electric motor 60.
  • the electric motor 60 drives the threaded spindle 56 such that the spindle nut 52, which in this embodiment is designed as a tension element, screws to the right in FIG. 3 and in this case exerts a tension force to the right in FIG. 3 on the tension band 44.
  • the pivot lever 38 pivots about the pivot axis 40, so that the shaft 20 rotates about the pivot axis 42 and pivots the leg support part 6 and the calf support part 8 relative to the central support part 4 via the adjusting lever 14.
  • the spindle nut 52 In the adjustment position of the leg support part 6 and the calf support part 8 shown in FIG. 2 relative to the central support part 4, the spindle nut 52 is located in the region of the end of the threaded spindle 56 facing the motor 60, as shown in FIG. 3. The return to the adjustment position shown in FIG. 1 takes place under the weight of the support parts 6, 8.
  • the furniture drive 36 according to the invention is also simple in construction and therefore inexpensive to manufacture.
  • the further furniture drive 36 ' is constructed in a corresponding manner and is used to adjust the support parts 10, 12 relative to the central support part 6, where an additional deflection roller 66 is provided to enable a parallel arrangement of the threaded spindles 56 and 56 ', so that a compact structure of the double drive formed by the furniture drives 36 and 36' is achieved.
  • FIG. 4 shows a second exemplary embodiment of a furniture drive according to the invention, which differs from the exemplary embodiment according to FIG. 1 in that the linearly movable drive element is formed by a spindle 68 which is adjustably mounted in its axial direction and which in this exemplary embodiment is a threaded spindle is trained.
  • a stationary spindle nut 70 which is arranged on the spindle 68 and can be driven in rotation, is provided, which is connected to the output shaft 62 of the
  • FIG. 5 shows a detail of a third exemplary embodiment of a furniture drive 36 according to the invention, which differs from the exemplary embodiment according to FIG. 4 primarily in that it is relative to the housing 34 about the pivot axis
  • a part 72 which is designed in the manner of a two-armed lever, on which deflection rollers 74 and 76 are arranged at points diametrically opposite the pivot axis 40 are.
  • the first end 45 of the tension band 44 is fixed to the housing 34 and from there via the deflection roller 76 to a deflection roller 78 arranged on the housing and from there to a deflection roller 80 likewise arranged on the housing.
  • the tension band 44 is guided from the deflection roller 80 via the deflection roller 74 to the spindle 68, at the end of which the second end 57 of the tension band 44 is fixed. Because the tension band 44 in this embodiment acts on both sides of the pivot axis 40 on the second part 72, lower forces are introduced into the housing 34.
  • FIG. 5 shows the furniture drive 36 in an adjustment position in which the leg support part 6 and the calf support part 8 are not pivoted relative to the central support part 4 (see FIG. 1).
  • FIG. 6 shows the furniture drive 36 according to FIG. 5 in an adjustment position in which the leg support part 6 and the calf support part 8 are pivoted relative to the central support part 4 (cf. FIG. 1).
  • a fourth embodiment of the furniture drive 36 according to the invention is shown, which differs from the embodiment of FIG. 5 first in that the linearly movable drive element is formed by a spindle nut 52 which is non-rotatable and movable in the axial direction of a threaded spindle 56 thereon held.
  • the first end 45 of the drawstring 44 is in this exemplary embodiment 72 play set and from there via a arranged on the housing 34 guide roller 80 via the deflection roller 76 to the guide roller 78 on the 'part.
  • the tension band 44 is guided from the deflection roller 78 via a deflection roller 42 arranged on the spindle nut 52 to the deflection roller 74. From the deflection roller 74, the tension band 44 is via a deflection arranged on the housing. roll 84 and from this back to the second part 72 on which the second end 57 of the drawstring 44 is fixed.
  • FIG. 7 shows the furniture drive 36 in an adjustment position in which the leg support part 6 and the calf support part 8 are not pivoted relative to the central support part 4 (see FIG. 1).
  • FIG. 8 shows the furniture drive 36 according to FIG. 7 in an adjustment position in which the leg support part 6 and the calf support part 8 are pivoted relative to the central support part 4 (see FIG. 2).
  • FIG. 9 shows a fifth exemplary embodiment of a furniture drive 36 according to the invention, in which a deflection roller 86 assigned to the part 72 is not arranged on the part 72 but on an intermediate part.
  • the intermediate part is formed by a lever 88 which, together with a lever 90, forms a lever gear or articulated gear.
  • the deflection roller 86 is arranged at one end 92 of the lever 88, the other end 94 of which is articulated on the housing 34. At a distance from the ends 92, 94 of the lever 88, an end 96 of the lever 90 is articulated thereon, the other end 98 of which is articulated on the second part 72.
  • the first end 45 of the tension band 44 is fixed to the housing 34 and is guided around the deflecting roller 86 and a deflecting roller 100 arranged on the housing 34 to the linearly movable drive element, not shown in FIG. 9, to which its second end 57 is fixed is.
  • FIG. 10 shows the furniture drive 36 according to FIG. 9 in an adjustment position in which the leg support part 6 and the calf support part 8 are pivoted relative to the central support part 4 (see FIG. 2).

Abstract

The invention relates to a furniture drive device (36) for moving parts of a piece of furniture in relation to each other. Said device comprises a first part, a second part which can be moved in relation to the first part, and a cable, strip or chain-shaped traction mechanism (44), the first end (46) thereof being fixed to one of said parts and the second end thereof (57) being actively connected to drive means for moving the parts in relation to each other. The traction mechanism (44) is alternately guided like a pulley block over at least one deviation element which is associated with the first part and at least one deviation element which is associated with the second part. The inventive furniture drive device (36) is characterised in that the drive means comprise a linearly moving drive element which is actively connected to the traction mechanism (44) in order to move the second part in relation to the first part.

Description

Möbelantrieb zum Verstellen von Teilen eines Möbels relativ zueinander Furniture drive for adjusting parts of a piece of furniture relative to one another
Die Erfindung betrifft einen Möbelantrieb der im Oberbegriff des Anspruchs 1 genannten Art zum Verstellen von Teilen eines Möbels relativ zueinander.The invention relates to a furniture drive of the type mentioned in the preamble of claim 1 for adjusting parts of a piece of furniture relative to one another.
Durch DE 198 43 259 Cl ist ein verstellbarer Bett- lattenrost mit einem als Schwenkantrieb ausgebildetenDE 198 43 259 Cl is an adjustable bed slatted frame with a swivel drive
Möbelantrieb bekannt, der zum Verschwenken eines Stütz- teiles des Bettlattenrostes relativ zu dessen Rahmen dient. Der Möbelantrieb weist ein erstes Teil sowie ein als Schwenkhebel ausgebildetes, relativ zu dem ersten Teil verschwenkbares zweites Teil auf, das mit dem zu verstellenden Stützteil in Wirkungsverbindung steht. Ferner weist der aus der Druckschrift bekannte Möbel- antrieb ein seil-, band- oder kettenförmiges Zugmittel auf, dessen erstes Ende an dem Schwenkhebel festgelegt ist und dessen zweites Ende an einer motorisch angetriebenen AufWickelvorrichtung festgelegt ist, die zum Aufwickeln des Zugmittels dient. Zum Verstellen des Stützteiles relativ zu dem Rahmen des Bettlattenrostes wickelt die Aufwiekel orrichtung das Zugmittel auf, wodurch der Schwenkhebel verschwenkt und eine Ver- schwenkung des Stützteiles relativ zu dem Rahmen des Bettlattenrostes bewirkt.Known furniture drive, which serves for pivoting a supporting part of the bed slatted frame relative to the frame. The furniture drive has a first part and a second part which is designed as a pivoting lever and can be pivoted relative to the first part and is operatively connected to the supporting part to be adjusted. Furthermore, the furniture drive known from the publication has a rope, band or chain-shaped traction means, the first end of which is fixed to the pivoting lever and the second end of which is fixed to a motor-driven winding device which serves to wind up the traction means. To adjust the support part relative to the frame of the bed slatted frame, the winding device winds up the traction means, as a result of which the pivoting lever pivots and causes the support part to pivot relative to the frame of the bed slatted frame.
Ein Nachteil des bekannten Möbelantriebes besteht darin, daß bei konstantem Drehmoment des Motors, der die Auf iekel orrichtung antreibt, mit zunehmendem Wik- kelradius des Zugmittels auf der Welle der Au ickel- vorrichtung die auf das Stützteil ausübbare Kraft abnimmt . Durch DE 34 09 223 C2 ist ein Möbelantrieb bekannt, der zum Verschwenken einer relativ zu einem Rahmen verschwenkbaren Liegefläche einer Liege dient. Der aus dieser Druckschrift bekannte Möbelantrieb weist ein erstes Teil in Form eines Schwenklagers, das an demA disadvantage of the known furniture drive is that with constant torque of the motor which drives the opening device, the force exerted on the supporting part decreases with increasing winding radius of the traction means on the shaft of the outside device. A furniture drive is known from DE 34 09 223 C2, which is used for pivoting a lying surface of a couch that can be pivoted relative to a frame. The furniture drive known from this document has a first part in the form of a pivot bearing which on the
Rahmen der Liege angeordnet ist, sowie ein relativ zu dem ersten Teil verschwenkbares zweites Teil in Form eines zweiarmigen Schwenkhebels auf, dessen erster Arm mit der Liegefläche zum Verschwenken derselben in Wir- kungsverbindung steht. Der Möbelantrieb weist ein Zugmittel in Form eines Seilzuges auf, dessen erstes Ende an dem Rahmen der Liege festgelegt ist. Das Zugmittel ist nach Art eines Flaschenzuges über eine an dem zweiten Arm des zweiarmigen Schwenkhebels angeordnete Um- lenkrolle und eine an dem Rahmen der Liege angeordnete Umlenkrolle geführt, wobei sein zweites Ende an einer Welle einer motorisch angetriebenen Aufwickelvorrichtung festgelegt ist. Zum Verschwenken der Liegefläche relativ zu dem Rahmen der Liege wickelt die Aufwickel- Vorrichtung das Zugmittel auf, wodurch der Schwenkhebel um seine Schwenkachse verschwenkt und eine Verschwen- kung der Liegefläche bewirkt .Frame of the bed is arranged, as well as a second part pivotable relative to the first part in the form of a two-armed pivot lever, the first arm of which is operatively connected to the lying surface for pivoting the same. The furniture drive has a pulling means in the form of a cable, the first end of which is fixed to the frame of the bed. The traction means is guided in the manner of a pulley block via a deflection roller arranged on the second arm of the two-armed pivot lever and a deflection roller arranged on the frame of the bed, its second end being fixed to a shaft of a motor-driven winding device. In order to pivot the lying surface relative to the frame of the lying, the winding device winds up the traction means, whereby the pivot lever pivots about its pivot axis and causes the lying surface to pivot.
Auch bei diesem bekannten Möbelantrieb ist nachteilig, daß bei konstantem Drehmoment des Motors, der die AufWickelvorrichtung antreibt, mit zunehmendem Wik- kelradius des Zugmittels auf der Welle der Aufwickel- vorrichtung die auf die zu verschwenkende Liegefläche ausübbaren Kräfte abnehmen.It is also disadvantageous in this known furniture drive that, with a constant torque of the motor which drives the winding device, the forces which can be exerted on the lying surface to be pivoted decrease with increasing winding radius of the traction means on the shaft of the winding device.
Durch FR 2 699 910 AI und das hierzu parallele US- Patent Nr. 5 528 948 ist ein Möbelantrieb der betreffenden Art bekannt, der ein erstes Teil und ein relativ zu dem ersten Teil linear verstellbares zweites Teil aufweist. Der bekannte Möbelantrieb weist ein seil-, band- oder kettenförmiges Zugmittel auf, dessen erstes Ende an dem ersten Teil festgelegt ist und das zum Verstellen der Teile relativ zueinander mit Antriebsmitteln in Wirkungsverbindung steht, wobei das Zugmittel nach Art eines Flaschenzuges abwechselnd über dem er- sten Teil zugeordnete Umlenkungen und dem zweiten Teil zugeordnete Umlenkungen geführt ist . Die Antriebsmittel weisen eine motorisch angetriebene AufwiekelVorrichtung auf, an deren Welle das zweite Ende des Zugmittels festgelegt ist. Zum Verstellen des zweiten Teiles rela- tiv zum ersten Teil wickelt die AufwiekelVorrichtung das Zugmittel entgegen der Rückstellkraft von Federmitteln auf.A furniture drive of the type in question is known from FR 2 699 910 A1 and US Pat. No. 5,528,948, which is parallel to it, and has a first part and a second part which is linearly adjustable relative to the first part. The known furniture drive has a rope, band or chain-shaped traction device, the first of which End is fixed to the first part and which is operatively connected to drive means for adjusting the parts relative to one another, the traction means being guided in the manner of a pulley alternately over deflections associated with the first part and deflections associated with the second part. The drive means have a motor-driven winding device, on the shaft of which the second end of the traction means is fixed. To adjust the second part relative to the first part, the winding device winds up the traction means against the restoring force of spring means.
Auch bei diesem bekannten Möbelantrieb ist nachteilig, daß die auf das zweite Teil ausübbaren Kräfte mit zunehmendem Wickelradius des Zugmittels auf der Welle der AufwiekelVorrichtung abnehmen.This known furniture drive also has the disadvantage that the forces which can be exerted on the second part decrease with increasing winding radius of the traction means on the shaft of the winding device.
Ein ähnlicher Möbelantrieb ist auch durch FR 2 727 296 bekannt .A similar furniture drive is also known from FR 2 727 296.
Der Erfindung liegt die Aufgabe zugrunde, einen Möbelantrieb der im Oberbegriff des Anspruchs 1 genannten Art anzugeben, mit dem sich über einen weiten Verstellbereich des zweiten Teiles relativ zu dem ersten Teil hohe Kräfte auf das zweite Teil ausüben lassen und der einfach und damit kostengünstig herstellbar ist. Die Erfindung wird durch die im Patentanspruch 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, with which high forces can be exerted on the second part relative to the first part over a wide adjustment range and which is simple and thus inexpensive to produce , The invention is solved by the teaching specified in claim 1.
Der Grundgedanke der erfindungsgemäßen Lehre besteht darin, anstelle einer AufwiekelVorrichtung ein linear bewegliches Antriebselement vorzusehen, das mit dem Zugmittel zum Verstellen des zweiten Teiles relativ zu dem ersten Teil in Wirkungsverbindung steht .The basic idea of the teaching according to the invention is to provide, instead of a winding device, a linearly movable drive element which is operatively connected to the traction means for adjusting the second part relative to the first part.
Auf diese Weise ist vermieden, daß mit zunehmender Verstellung des zweiten Teiles relativ zu dem ersten Teil die auf das zweite Teil ausübbaren Kräfte abneh- men. Es lassen sich somit über einen weiten Verstell- bereich gleichmäßig große Kräfte auf das zweite Teil ausüben.In this way it is avoided that with increasing adjustment of the second part relative to the first part the forces that can be exerted on the second part decrease. men. This means that uniformly large forces can be exerted on the second part over a wide adjustment range.
Darüber hinaus ist der erfindungsgemäße Möbel- antrieb einfach im Aufbau und damit kostengünstig herstellbar.In addition, the furniture drive according to the invention is simple in construction and thus inexpensive to manufacture.
Ein weiterer Vorteil des erfindungsgemäßen Möbel- antriebs besteht darin, daß er sehr kompakt im Aufbau, insbesondere sehr flach ist. Aufgrunddessen ist die Höhe beispielsweise eines mit einem erfindungsgemäßen Möbelantrieb versehenen Lattenrostes nur geringfügig größer als die Höhe eines manuell verstellbaren Lattenrostes ohne Antrieb. Durch die flache Bauweise beeinträchtigt der erfindungsgemäße Möbelantrieb darüber hinaus das optische Erscheinungsbild eines mit einem solchen Antrieb versehenen Lattenrostes nur geringfügig-Another advantage of the furniture drive according to the invention is that it is very compact in construction, in particular very flat. Because of this, the height of, for example, a slatted frame provided with a furniture drive according to the invention is only slightly greater than the height of a manually adjustable slatted frame without a drive. Due to the flat design, the furniture drive according to the invention also only slightly impairs the visual appearance of a slatted frame provided with such a drive.
Das erste Teil und das zweite Teil können durch Teile des Möbelantriebs gebildet sein. Beispielsweise kann das erste Teil durch ein Gehäuse des Möbelantriebs und das zweite Teil durch ein relativ zu dem Gehäuse verstellbares Teil gebildet sein. Zum Verstellen von Teilen eines Möbels relativ zueinander mittels des erfindungsgemäßen Möbelantriebs stehen das erste und das zweite Teil mit den relativ zueinander zu verstellenden Teilen des Möbels in geeigneter WirkungsVerbindung. Das erste Teil und das zweite Teil können jedoch auch unmittelbar durch Teile eines Möbels gebildet sein, an denen Bauteile des erfindungsgemäßen Möbelantriebs an- geordnet sind.The first part and the second part can be formed by parts of the furniture drive. For example, the first part can be formed by a housing of the furniture drive and the second part by a part that is adjustable relative to the housing. To adjust parts of a piece of furniture relative to one another by means of the furniture drive according to the invention, the first and the second part have a suitable operative connection with the parts of the piece of furniture to be adjusted relative to one another. However, the first part and the second part can also be formed directly by parts of a piece of furniture on which components of the furniture drive according to the invention are arranged.
Das erste Ende des Zugmittels kan an einer beliebigen geeigneten Stelle des Möbelantriebs oder eines Möbels, das mit einem erfindungsgemäßen Mδbelantrieb versehen ist, festgelegt sein. Zweckmäßigerweise ist das erste Ende des Zugmittels an dem zweiten Teil festgelegt. Diese Ausfuhrungsform ist einfach im Aufbau und damit kostengünstig herstellbar.The first end of the traction means can be fixed at any suitable point on the furniture drive or a piece of furniture which is provided with a furniture drive according to the invention. It is expedient the first end of the traction device is fixed to the second part. This embodiment is simple in construction and therefore inexpensive to manufacture.
Auch das zweite Ende des Zugmittels kann an einer beliebigen geeigneten Stelle des Möbelantriebs oder eines Möbels, das mit einem erfindungsgemäßen Möbel- antrieb versehen ist, festgelegt sein. Zweckmäßigerweise ist das zweite Ende des Zugmittels an dem linear beweglichen Antriebselement festgelegt. Diese Ausfüh- rungsform ist einfach im Aufbau und damit kostengünstig herstellbar.The second end of the traction means can also be fixed at any suitable point on the furniture drive or on a piece of furniture which is provided with a furniture drive according to the invention. The second end of the traction means is expediently fixed on the linearly movable drive element. This embodiment is simple in construction and therefore inexpensive to manufacture.
Die Enden des Zugmittels können in beliebiger geeigneter Weise festgelegt sein, beispielsweise lösbar durch Festklemmen. Das linear bewegliche Antriebselement kann in beliebiger geeigneter Weise mit dem Zugmittel in Wirkungsverbindung stehen. Beispielsweise kann das Antriebselement an einer durch geeignete Umlenkungen gebildeten Schlaufe des Zugmittels anliegen und während der Verstellbewegung eine Druckkraft auf das Zugmittel ausüben, derart, daß das Zugmittel das zweite Teil relativ zu dem ersten Teil verstellt . Eine besonders vorteilhafte Weiterbildung sieht vor, daß das linear bewegliche Antriebselement als Zugelement ausgebildet ist, das zum Verstellen des zweiten Teiles relativ zu dem ersten Teil eine Zugkraft auf das Zugmittel ausübt. Diese Ausfuhrungsform ist besonders einfach im Aufbau und damit kostengünstig herstellbar.The ends of the traction means can be fixed in any suitable manner, for example releasably by clamping. The linearly movable drive element can be operatively connected to the traction means in any suitable manner. For example, the drive element can rest against a loop of the traction means formed by suitable deflections and exert a compressive force on the traction means during the adjustment movement such that the traction means adjusts the second part relative to the first part. A particularly advantageous development provides that the linearly movable drive element is designed as a pulling element which exerts a pulling force on the pulling means in order to adjust the second part relative to the first part. This embodiment is particularly simple in construction and therefore inexpensive to manufacture.
Gemäß einer vorteilhaften Weiterbildung ist das linear bewegliche Antriebselement eine Spindelmutter, die verdrehsicher und in Axialrichtung beweglich auf einer drehantreibbaren Stellspindel gehalten ist. Diese Ausfuhrungsform ist robust und zum Aufbringen hoher Kräfte geeignet. Entsprechende Stellspindeln und Spin- delmuttern stehen als einfache und kostengünstige Standardbauteile, zur Verfügung, so daß der Aufbau des erfindungsgemäßen Möbelantriebes einfach und damit kostengünstig gestaltet ist. Die lineare Bewegung des Antriebselementes kann auch eine näherungsweise lineare Bewegung oder eine abschnittsweise lineare Bewegung sein.According to an advantageous development, the linearly movable drive element is a spindle nut, which is held against rotation and is movable in the axial direction on a rotationally drivable adjusting spindle. This embodiment is robust and suitable for applying high forces. Corresponding adjusting spindles and spin Del nuts are available as simple and inexpensive standard components, so that the structure of the furniture drive according to the invention is simple and therefore inexpensive. The linear movement of the drive element can also be an approximately linear movement or a linear movement in sections.
Bei der vorgenannten Ausführungsform ist die Stellspindel zweckmäßigerweise als Gewindespindel aus- gebildet.In the aforementioned embodiment, the adjusting spindle is expediently designed as a threaded spindle.
Gemäß einer anderen Ausfuhrungsform ist das linear bewegliche Antriebselement eine in ihrer Axialrichtung verstellbar gelagerte Spindel. Auch diese Ausführungsform ist einfach im Aufbau und robust. Eine Weiterbildung der vorgenannten Ausführungsform sieht vor, daß zur Verstellung der Spindel eine ortsfeste, auf der Spindel angeordnete, drehantreibbare Spindelmutter vorgesehen ist. Da entsprechende Spindeln und Spindelmuttern als einfache und kostengünstige Standardbauteile zur Verfügung stehen, ist der Aufbau des erfindungsgemäßen Möbelantriebes einfach und damit kostengünstig gestaltet.According to another embodiment, the linearly movable drive element is a spindle which is adjustably mounted in its axial direction. This embodiment is also simple in construction and robust. A further development of the aforementioned embodiment provides that a stationary spindle nut which is arranged on the spindle and can be driven in rotation is provided for adjusting the spindle. Since appropriate spindles and spindle nuts are available as simple and inexpensive standard components, the structure of the furniture drive according to the invention is simple and therefore inexpensive.
Bei der vorgenannten Ausfuhrungsform ist die Spindel zweckmäßigerweise als Gewindespindel ausgebildet . Grundsätzlich ist es ausreichend, daß das Zugmittel nach Art. eines mindestens 2-strängigen Flaschenzuges über eine dem ersten Teil zugeordnete Umlenkung und eine dem zweiten Teil zugeordnete Umlenkung geführt ist. Eine außerordentlich vorteilhafte Weiterbildung sieht jedoch vor, daß das Zugmittel nach Art eines mindestens 4-strängigen Flaschenzuges abwechselnd über dem ersten Teil zugeordnete Umlenkungen und dem zweiten Teil zugeordnete Umlenkungen geführt ist. Bei dieser Ausfuhrungsform sind entsprechend der Anzahl der Strän- ge des Flaschenzuges hohe Untersetzungen erreichbar, so daß sich mit dem erfindungsgemäßen Möbelantrieb auch unter Verwendung eines kleinen und damit kostengünstigen Motors große Kräfte aufbringen lassen. Mit dem erfindungsgemäßen Möbelantrieb sind beliebige Verstellbewegungen des zweiten Teiles relativ zu dem ersten Teil erzielbar, beispielsweise Winkelbewegungen oder lineare Bewegungen. Eine Ausfuhrungsform sieht vor, daß das erste Teil relativ zu dem zweiten Teil verschwenkbar ist, derart, daß der Möbelantrieb als Schwenkantrieb ausgebildet ist. Diese Ausführungsform ist besonders gut zum Verstellen von Stützeinrichtungen für Polsterungen von Sitz- und/oder Liegemöbeln, beispielsweise in Form von Lattenrosten, geeignet, da die Stützteile dieser Stützeinrichtungen in der Regel verschwenkbar miteinander verbunden sind. Der erfindungsgemäße Möbelantrieb ist jedoch beispielsweise auch für eine HδhenverStellung der gesamten Stützeinrichtung, beispielsweise bei Krankenhausbetten, geeignet. Eine andere Weiterbildung sieht vor, daß eines derIn the aforementioned embodiment, the spindle is expediently designed as a threaded spindle. Basically, it is sufficient that the traction means is guided in the manner of an at least 2-leg pulley via a deflection assigned to the first part and a deflection assigned to the second part. An extremely advantageous further development provides, however, that the traction means is guided in the manner of an at least 4-leg pulley system alternately over deflections assigned to the first part and deflections assigned to the second part. In this embodiment, according to the number of beaches ge of the pulley high reductions achievable, so that large forces can be applied with the furniture drive according to the invention even using a small and therefore inexpensive motor. With the furniture drive according to the invention, any adjustment movements of the second part relative to the first part can be achieved, for example angular movements or linear movements. An embodiment provides that the first part is pivotable relative to the second part, such that the furniture drive is designed as a swivel drive. This embodiment is particularly well suited for adjusting support devices for upholstery of seating and / or reclining furniture, for example in the form of slatted frames, since the support parts of these support devices are generally pivotally connected to one another. However, the furniture drive according to the invention is also suitable, for example, for adjusting the height of the entire support device, for example in hospital beds. Another further training provides that one of the
Teile einen Schwenkhebel aufweist, dem wenigstens eine Umlenkung zugeordnet ist. Diese Ausfuhrungsform ist einfach im Aufbau und damit kostengünstig herstellbar. Der Schwenkhebel kann hierbei in beliebiger geeigneter Weise zum Verstellen eines zugeordneten Teiles eines Möbels mit diesem in Wirkungsverbindung stehen, beispielsweise über einen Verstellhebel.Parts has a pivot lever to which at least one deflection is assigned. This embodiment is simple in construction and therefore inexpensive to manufacture. The pivot lever can be operatively connected to the furniture in any suitable manner for adjusting an assigned part, for example via an adjusting lever.
Eine außerordentlich vorteilhafte Weiterbildung der Ausführungsform mi «t dem Schwenkhebel sieht vor, daß der Schwenkhebel drehfest mit einer drehbar gelagertenAn extremely advantageous development of the embodiment with the swivel lever provides that the swivel lever is rotatably mounted with a rotatably mounted one
Welle verbindbar ist, die in Montageposition des Möbels mit einem Teil des Möbels zum Verstellen desselben in WirkungsVerbindung steht. Diese Ausführungsform ist einfach im Aufbau und besonders robust, so daß sich mit einem erfindungsgemäßen Mδbelantrieb gemäß dieser Ausführungsform besonders große Kräfte aufbringen lassen.Shaft is connectable, which is in the assembly position of the furniture with a part of the furniture for adjusting the same in operative connection. This embodiment is simple in construction and particularly robust, so that with allow a particularly large force to be exerted on a furniture drive in accordance with this embodiment.
Eine Weiterbildung der vorgenannten Ausführungs- form sieht vor, daß der Schwenkhebel zur Bildung einer drehfesten Verbindung formschlüssig mit der Welle verbindbar ist. Diese Ausfuhrungsform ist besonders robust und zur Übertragung besonders großer Kräfte geeignet .A further development of the aforementioned embodiment provides that the swivel lever can be positively connected to the shaft to form a rotationally fixed connection. This embodiment is particularly robust and suitable for the transmission of particularly large forces.
Eine andere Weiterbildung der Ausführungsform mit dem Schwenkhebel und der Welle sieht vor, daß die Welle einen unrunden Querschnitt aufweist und in Montageposition des Möbelantriebs formschlüssig in eine Ausnehmung des Schwenkhebels eingreift, die zum Querschnitt der Welle im wesentlichen komplementär geformt ist. Diese Ausfuhrungsform ist ebenfalls besonders einfach im Auf- bau sowie robust.Another development of the embodiment with the pivot lever and the shaft provides that the shaft has a non-circular cross-section and engages positively in a mounting position of the furniture drive in a recess of the pivot lever which is essentially complementary to the cross-section of the shaft. This embodiment is also particularly simple in construction and robust.
Gemäß einer anderen Weiterbildung ist die Ausnehmung des Schwenkhebels in Radialrichtung der Welle offen ausgebildet, wobei Verriegelungsmittel zum Verriegeln der Welle in der Ausnehmung vorgesehen sind. Dies erleichtert bei der Montage des erfindungsgemäßen Möbelantriebs das Einsetzen der Welle in die Ausnehmung. Durch die Verriegelungsmittel ist verhindert, daß sich die Welle während der Verstellbewegung aus der Ausnehmung löst . Eine andere Weiterbildung der Ausfuhrungsform mit dem Schwenkhebel sieht vor, daß dieser als zweiarmiger Hebel ausgebildet ist, wobei jedem Hebelarm wenigstens eine Umlenkung zugeordnet ist. Auf diese Weise ist ein besonders kompakter Aufbau des erfindungsgemäßen Möbel- antriebs erzielt.According to another development, the recess of the pivot lever is designed to be open in the radial direction of the shaft, locking means being provided for locking the shaft in the recess. This facilitates the insertion of the shaft into the recess when assembling the furniture drive according to the invention. The locking means prevents the shaft from coming loose from the recess during the adjustment movement. Another development of the embodiment with the swivel lever provides that it is designed as a two-armed lever, with each lever arm being assigned at least one deflection. In this way, a particularly compact structure of the furniture drive according to the invention is achieved.
Entsprechend den jeweiligen Anforderungen kann eine Umlenkung, die einem der Teile zugeordnet ist, an diesem Teil angeordnet sein. Auf diese Weise ergibt sich ein einfacher Aufbau. Eine Umlenkung, die einem Teil zugeordnet ist, kann jedoch auch an einem mit diesem Teil in Kraftübertragungsverbindung stehenden Zwischenteil angeordnet sein, wie dies eine andere Ausfuhrungsform vorsieht. Auf diese Weise ist die Kinematik des Möbelantriebs an die jeweiligen Anforderungen hinsichtlich des Raumbedarfes und der Anordnung der Bauteile des Möbelantriebs in weiten Grenzen anpaßbar.A deflection, which is assigned to one of the parts, can be arranged on this part in accordance with the respective requirements. This results in a simple structure. A deflection, which is assigned to a part, can, however, also be arranged on an intermediate part which is in force transmission connection with this part, as is provided by another embodiment. In this way, the kinematics of the furniture drive can be adapted within wide limits to the respective requirements with regard to the space requirement and the arrangement of the components of the furniture drive.
Grundsätzlich können die Umlenkungen durch Achsen gebildet sein, um die das Zugmittel geführt ist. Eine andere vorteilhafte Weiterbildung sieht vor, daß die Umlenkungen durch Umlenkrollen gebildet sind. Bei dieser Ausfuhrungsform ist die Reibung des Zugmittels an den Umlenkungen verringert, so daß der erfindungsgemäße Möbelantrieb reibungsarm arbeitet .In principle, the deflections can be formed by axes around which the traction means is guided. Another advantageous development provides that the deflections are formed by deflection rollers. In this embodiment, the friction of the traction means at the deflections is reduced, so that the furniture drive according to the invention works with little friction.
Weiterbildungen der Ausführungsformen, bei denen das Zugmittel nach Art eines mindestens 4-strängigen Flaschenzuges umgelenkt ist und die Umlenkungen als Umlenkrollen ausgebildet sind, sehen vor, daß die dem ersten Teil zugeordneten Umlenkrollen koaxiale Drehachsen aufweisen oder auf einer gemeinsamen Drehachse angeordnet sind und/oder daß die dem zweiten Teil zugeordneten Umlenkrollen koaxiale Drehachsen aufweisen oder auf einer gemeinsamen Drehachse angeordnet sind. Bei diesen Ausführungsformen bilden die dem ersten und dem zweiten Teil zugeordneten Umlenkrollen jeweils einen kompakten, platzsparenden Rollenblock.Further developments of the embodiments, in which the traction means is deflected in the manner of an at least 4-leg pulley and the deflections are designed as deflection rollers, provide that the deflection rollers assigned to the first part have coaxial axes of rotation or are arranged on a common axis of rotation and / or that the deflection rollers assigned to the second part have coaxial axes of rotation or are arranged on a common axis of rotation. In these embodiments, the deflection rollers assigned to the first and the second part each form a compact, space-saving roller block.
Andere Weiterbildungen der Ausfuhrungsformen mit dem nach Art eines mindestens 4-strängigen Flaschen- zuges umgelenkten Zugmittel und den Umlenkrollen sehen vor, daß die dem ersten Teil zugeordneten Umlenkrollen zueinander parallele Drehachsen aufweisen und/oder daß die dem zweiten Teil zugeordneten Umlenkrollen zueinander parallele Drehachsen aufweisen. Bei diesen Aus- fuhrungsformen ergibt sich ein in Axialrichtung der Umlenkrollen besonders kompakter Aufbau.Other developments of the embodiments with the traction means deflected in the manner of an at least 4-strand bottle pull and the deflection rollers provide that the deflection rollers assigned to the first part have axes of rotation parallel to one another and / or that the deflection rollers assigned to the second part have axes of rotation parallel to one another. With these guiding forms results in a particularly compact construction in the axial direction of the deflection rollers.
Zweckmäßigerweise weisen die Antriebsmittel wenigstens einen Motor, insbesondere einen Elektromotor auf. Eine Weiterbildung der vorgenannten Ausführungs- form sieht vor, daß der Motor mit der Stellspindel über ein Getriebe in Antriebsverbindung steht . Bei dieser Ausfuhrungsform ist durch entsprechende Wahl des Getriebes die Orientierung der Abtriebswelle des Motors relativ zu der Stellspindel in weiten Grenzen wählbar.The drive means expediently have at least one motor, in particular an electric motor. A further development of the aforementioned embodiment provides that the motor is in drive connection with the adjusting spindle via a gear. In this embodiment, the orientation of the output shaft of the motor relative to the adjusting spindle can be selected within wide limits by appropriate selection of the gear.
Eine mit einem erfindungsgemäßen Möbelantrieb versehene motorisch verstellbare Stützeinrichtung für eine Polsterung eines Sitz- und/oder Liegemöbels ist im Anspruch 28 angegeben. Eine Weiterbildung der erfindungsgemäßen Stützeinrichtung sieht vor, daß diese als Lattenrost ausgebildet ist.A motor-driven support device provided with a furniture drive according to the invention for upholstering seating and / or reclining furniture is specified in claim 28. A further development of the support device according to the invention provides that it is designed as a slatted frame.
Ein mit einer erfindungsgemäßen Stützeinrichtung versehenes Sitz- und/oder Liegemöbel ist im Anspruch 30 angegeben. Das erfindungsgemäße Möbel kann beispielsweise als Bett, Liege oder Sessel ausgebildet sein. Bei anderen Ausführungsformen kann das erfindungsgemäße Möbel beispielsweise als Sitz eines Kraftfahrzeuges ausgebildet sein. Die Erfindung wird nachfolgend anhand der beigefügten Zeichnung näher erläutert, in der Ausführungsbeispiele dargestellt sind.A seating and / or reclining furniture provided with a support device according to the invention is specified in claim 30. The furniture according to the invention can be designed, for example, as a bed, lounger or armchair. In other embodiments, the piece of furniture according to the invention can be designed, for example, as the seat of a motor vehicle. The invention is explained in more detail below with reference to the accompanying drawing, in which exemplary embodiments are shown.
Es zeigt: pig- 1 in schematischer Seitenansicht ein Aus- führungsbeispiel einer erfindungsgemäßen Stützeinrichtung in Form eines Lattenrostes, wobei die Stützteile der Stützeinrichtung relativ zueinander nicht ver- stellt sind, Fig. 2 in gleicher Darstellung wie Fig. 1 dieIn which: p 1 Ig i n schematic side view of an exemplary embodiment of a supporting device according to the invention in the form of a slatted frame, wherein the support parts of the support means relative to one another not comparable 2 in the same representation as FIG. 1
Stützeinrichtung gemäß Fig. 1, wobei die Stützteile der Stützeinrichtung relativ zueinander verstellt sind,1, the support parts of the support device being adjusted relative to one another,
Fig. 3 in schematischer Seitenansicht ein erstes Ausführungsbeispiel eines als Doppelantrieb ausgebildeten erfindungsgemäßen Möbelantriebes, Fig. 4 in gleicher Darstellung wie Fig. 3 ein zweites Ausführungsbeispiel eines als Doppelantrieb ausgebildeten erfindungsgemäßen Möbelantriebes, Fig. 5 in stark schematischer Darstellung eine Einzelheit eines dritten Ausführungsbeispieles eines erfindungsgemäßen Möbel- • antriebes in einer ersten Verstellage, Fig. 6 in gleicher Darstellung wie Fig. 5 das Ausführungsbeis°piel gemäß Fig. 5 in ei- ner zweiten Verstellage,3 shows a schematic side view of a first exemplary embodiment of a furniture drive according to the invention designed as a double drive, FIG. 4 shows the same representation as FIG. 3 shows a second exemplary embodiment of a furniture drive according to the invention designed as a double drive, • furniture drive in a first adjustment position, Fig. 6 in the same representation as Fig. 5, the Ausführungsbeis ° Piel of FIG. 5 in a second adjustment position,
Fig. 7 in gleicher Darstellung wie Fig. 5 eine Einzelheit eines vierten Ausführungsbei- spieles eines erfindungsgemäßen Möbel- antriebs in einer ersten Verstellage, Fig. 8 in gleicher Darstellung wie Fig. 7 das7, in the same representation as FIG. 5, a detail of a fourth exemplary embodiment of a furniture drive according to the invention in a first adjustment position, FIG. 8 in the same representation as FIG. 7
Ausführungsbeispiel gemäß Fig. 7 in einer zweiten Verstellage,7 in a second adjustment position,
Fig. 9 in gleicher Darstellung wie Fig. 5 eine Einzelheit eines fünften Ausführungsbei- spieles eines erfindungsgemäßen Möbel- antriebes in einer ersten Verstellage und Fig 10 in gleicher Darstellung wie Fig. 9 das Ausführungsbeispiel gemäß Fig. 9 in ei- ner zweiten Verstellage.9 in the same representation as FIG. 5 shows a detail of a fifth exemplary embodiment of a furniture drive according to the invention in a first adjustment position, and FIG. 10 in the same representation as FIG. 9 shows the exemplary embodiment according to FIG. ner second adjustment.
In den Figuren der Zeichnung sind gleiche bzw. sich entsprechende Bauteile mit den gleichen Bezugs- zeichen versehen.In the figures of the drawing, identical or corresponding components are provided with the same reference symbols.
In Fig. 1 ist ein Ausführungsbeispiel einer erfindungsgemäßen Stützeinrichtung 2 in Form eines Lattenrostes zum Abstützen einer in der Zeichnung nicht dargestellten Polsterung eines Sitz- und/oder Liegemöbels, beispielsweise einer Matratze eines Bettes, dargestellt. Die Stützeinrichtung 2 weist mehrere relativ zueinander um zueinander parallele horizontale Schwenkachsen verschwenkbare Stützteile auf und dient zum Abstützen der in der Zeichnung nicht dargestellten Pol- sterung des Sitz- und/oder Liegemöbels.1 shows an exemplary embodiment of a support device 2 according to the invention in the form of a slatted frame for supporting an upholstery (not shown in the drawing) of a seating and / or reclining furniture, for example a mattress of a bed. The support device 2 has a plurality of support parts which can be pivoted relative to one another about parallel horizontal pivot axes and serves to support the upholstery of the seating and / or reclining furniture (not shown in the drawing).
Im einzelnen weist die Stützeinrichtung 2 ein mittleres Stützteil 4 auf, das an einer Seite gelenkig und um eine horizontale Schwenkachse verschwenkbar mit einem Beinstützteil 6 verbunden ist, das an seiner dem mittleren Stützteil 4 abgewandten Seite gelenkig und um eine horizontale Schwenkachse verschwenkbar mit einem Wadenstützteil 8 verbunden ist.Specifically, the support device 2 has a central support part 4 which is articulated on one side and pivotable about a horizontal pivot axis with a leg support part 6, which is articulated on its side facing away from the central support part 4 and pivotable about a horizontal pivot axis with a calf support part 8 connected is.
Das mittlere Stützteil 4 ist auf seiner dem Beinstützteil 6 abgewandten Seite gelenkig und um eine ho- rizontale Schwenkachse verschwenkbar mit einem Oberkörperstützteil 10 verbunden, das auf seiner dem mittleren Stützteil 4 abgewandten Seite gelenkig und um eine horizontale Schwenkachse verschwenkbar mit einem Kopfstützteil 12 verbunden ist. Zum Verschwenken des Beinstützteiles 6 und desThe middle support part 4 is articulated on its side facing away from the leg support part 6 and pivotably connected to an upper body support part 10 about a horizontal pivot axis, which is articulated on its side facing away from the middle support part 4 and pivotably connected to a head support part 12 about a horizontal pivot axis. For pivoting the leg support part 6 and
Wadenstützteiles 8 relativ zu dem mittleren Stützteil 4 ist ein Verstellhebel 14 vorgesehen, dessen eines Ende 16 an dem Wadenstützteil 8 angelenkt ist und dessen anderes Ende 18 drehfest mit einer um eine horizontale Drehachse an einem in der Zeichnung nicht dargestellten Rahmen der Stützeinrichtung 2 drehbar gelagerten Welle 20 in Form einer Vierkantwelle verbunden ist.Calf support part 8 relative to the central support part 4 is provided an adjusting lever 14, one end 16 of which is articulated to the calf support part 8 and the other end 18 of which is non-rotatable with a horizontal one Axis of rotation on a frame of the support device 2, not shown in the drawing, is rotatably mounted in the form of a square shaft.
Zum Verschwenken des Oberkörperstützteiles 10 und des KopfStützteiles 12 relativ zu dem mittleren Stützteil 4 ist ein weiterer Verstellhebel 22 vorgesehen, dessen eines Ende 23 drehfest mit einer um eine horizontale Drehachse an dem in der Zeichnung nicht dargestellten Rahmen der Stützeinrichtung 2 drehbar gela- gerten Welle 24 in Form einer Vierkantwelle verbunden ist und dessen anderes Ende 26 mit einem Ende 28 eines weiteren Verstellhebels 30 verbunden ist, dessen dem Verstellhebel 22 abgewandtes Ende 32 gelenkig mit dem Kopfstützteil 12 verbunden ist. Fig. 2 zeigt die Stützeinrichtung gemäß Fig. 1 in einer Position, in der die Stützteile 6, 8 und 10, 12 relativ zu dem mittleren Stützteil 4 verschwenkt sind.To pivot the upper body support part 10 and the head support part 12 relative to the central support part 4, a further adjusting lever 22 is provided, one end 23 of which is rotatably mounted with a shaft 24 rotatably mounted about a horizontal axis of rotation on the frame of the support device 2, which is not shown in the drawing is connected in the form of a square shaft and the other end 26 is connected to an end 28 of a further adjusting lever 30, the end 32 of which is remote from the adjusting lever 22 is connected in an articulated manner to the headrest part 12. FIG. 2 shows the support device according to FIG. 1 in a position in which the support parts 6, 8 and 10, 12 are pivoted relative to the central support part 4.
Zum Verschwenken der Stützteile 6, 8 und 10, 12 relativ zu dem mittleren Stützteil 4 sind erfindungs- gemäße Möbelantriebe vorgesehen, die in einem gemeinsamen Gehäuse 34 unterhalb der Stützeinrichtung 2 aufgenommen sind. Bei dem Ausführungsbeispiel gemäß Fig. 1 werden die in dem Gehäuse 34 angeordneten Möbelantriebe von den Wellen 20, 24 getragen, die ihrerseits drehbar an dem in der Zeichnung nicht dargestellten Rahmen der Stützeinrichtung 2 gelagert sind. Das Gehäuse 34 kann jedoch beispielsweise auch an dem in der Zeichnung nicht dargestellten Rahmen der Stützeinrichtung 2 befestigt sein. In dem Gehäuse 34 sind zwei erfindungsgemäßeFurniture drives according to the invention are provided for pivoting the support parts 6, 8 and 10, 12 relative to the central support part 4 and are accommodated in a common housing 34 below the support device 2. In the embodiment according to FIG. 1, the furniture drives arranged in the housing 34 are carried by the shafts 20, 24, which in turn are rotatably mounted on the frame of the support device 2, not shown in the drawing. However, the housing 34 can, for example, also be attached to the frame of the support device 2, which is not shown in the drawing. In the housing 34 are two according to the invention
Möbelantriebe 36, 36' aufgenommen.Furniture drives 36, 36 'added.
Aufbau und Funktionsweise dieses Ausführungsbei- spieles des erfindungsgemäßen Möbelantriebes werden nachfolgend anhand des Möbelantriebes 36 näher erläu- tert . Der Möbelantrieb 36' ist entsprechend aufgebaut, wobei seine Bauteile mit Bezugszeichen versehen sind, die den Bezugszeichen der Bauteile des Möbelantriebs 36 entsprechen. In Fig. 3 sind die Möbelantriebe 36, 36' der Übersichtlichkeit halber ohne die Stützeinrichtung 2 dargestellt. Außerdem ist eine Hälfte des Gehäuses 34 weggelassen.The structure and mode of operation of this exemplary embodiment of the furniture drive according to the invention are explained in more detail below with reference to the furniture drive 36. tert. The furniture drive 36 'is constructed accordingly, its components being provided with reference symbols which correspond to the reference symbols of the components of the furniture drive 36. In Fig. 3 the furniture drives 36, 36 'are shown without the support device 2 for the sake of clarity. In addition, one half of the housing 34 is omitted.
Der Möbelantrieb 36 weist ein erstes Teil, das bei diesem Ausführungsbeispiel durch das Gehäuse 34 gebildet ist, sowie ein zweites Teil auf, das bei diesem Ausführungsbeispiel durch einen Schwenkhebel 38 gebildet ist, der um eine Schwenkachse 40 schwenkbar an dem Gehäuse 34 gelagert ist. In Montageposition des Möbelantriebs 36 ist der Schwenkhebel 38 drehfest mit der in Fig. 3 nicht dargestellten drehbar gelagerten Welle 20 verbunden, die über den Verstellhebel 14 mit dem Wadenstützteil 8 zum Verschwenken desselben in Wirkungsverbindung steht . Der Mδbelantrieb 36 bildet bei diesem Ausführungsbeispiel also einen Schwenkantrieb. 'The furniture drive 36 has a first part, which in this exemplary embodiment is formed by the housing 34, and a second part, which in this exemplary embodiment is formed by a pivot lever 38, which is pivotably mounted on the housing 34 about a pivot axis 40. In the assembly position of the furniture drive 36, the pivot lever 38 is connected in a rotationally fixed manner to the rotatably mounted shaft 20 (not shown in FIG. 3), which is in operative connection with the calf support part 8 for pivoting the same via the adjusting lever 14. The furniture drive 36 thus forms a swivel drive in this embodiment. '
Bei diesem Ausführungsbeispiel ist der Schwenkhebel 38 in Montageposition zur Bildung einer drehfesten Verbindung formschlüssig mit der Welle 20 verbunden (vgl. Fig. 1) . Hierzu weist die Welle 20 einen unrunden Querschnitt in Form eines Vierkants auf und greift formschlüssig in eine Ausnehmung 42 des Schwenkhebels 38 ein, die zum Querschnitt der Welle 20 im wesentlichen komplementär geformt und in Radialrichtung der Welle 20 zur Seite offen ausgebildet ist.In this embodiment, the pivot lever 38 is positively connected to the shaft 20 in the assembly position to form a rotationally fixed connection (cf. FIG. 1). For this purpose, the shaft 20 has a non-circular cross section in the form of a square and engages in a form-fitting manner in a recess 42 in the pivoting lever 38, which is essentially complementary to the cross section of the shaft 20 and is open to the side in the radial direction of the shaft 20.
Der Schwenkhebel 38 ist bei dem Ausführungsbeispiel als einarmiger Hebel ausgebildet .The pivot lever 38 is designed in the embodiment as a one-armed lever.
Der Möbelantrieb 36 weist ferner ein flexibles Zugmittel auf, das bei dem Ausführungsbeispiel durch ein flexibles flaches Zugband 44 gebildet ist.The furniture drive 36 also has a flexible traction means, which in the exemplary embodiment a flexible flat drawstring 44 is formed.
Das Zugband 44, dessen erstes Ende 45 an dem Schwenkhebel 38 festgelegt ist, ist nach Art eines Flaschenzuges abwechselnd über an dem ersten Teil, also dem Gehäuse 34, angeordnete Umlenkungen in Form von drehbar gelagerten Umlenkrollen 46, 48 und eine an dem zweiten Teil, also dem Schwenkhebel 38, angeordete Umlenkung in Form einer drehbar gelagerten Umlenkrolle 50 geführt . Der Möbelantrieb 36 weist ferner Antriebsmittel auf, die erfindungsgemäß ein linear bewegliches Antriebselement aufweisen, das mit dem Zugband 44 zum Verstellen des zweiten Teiles relativ zu dem ersten Teil in Wirkungsverbindung steht. Das linear bewegliche Antriebselement ist bei diesem Ausführungsbeispiel durch eine Spindelmutter 52 gebildet, die verdrehsicher und in Axialrichtung in Richtung eines Doppelpfeiles 54 beweglich auf einer drehantreibbaren Gewindespindel 56 gehalten ist . Das zweite Ende 57 des Zugbandes 44 ist an der Spindelmutter 52 festgelegt.The tension band 44, the first end 45 of which is fixed to the swivel lever 38, is in the manner of a pulley alternately via deflections arranged on the first part, that is to say the housing 34, in the form of rotatably mounted deflection rollers 46, 48 and one on the second part, thus the pivot lever 38, arranged deflection in the form of a rotatably mounted deflection roller 50. The furniture drive 36 also has drive means which, according to the invention, have a linearly movable drive element which is operatively connected to the tension band 44 for adjusting the second part relative to the first part. In this exemplary embodiment, the linearly movable drive element is formed by a spindle nut 52, which is held against rotation and is movable in the axial direction in the direction of a double arrow 54 on a rotationally drivable threaded spindle 56. The second end 57 of the tension band 44 is fixed to the spindle nut 52.
Die Gewindespindel 56 steht über ein Winkelgetriebe 58 mit einem Drehantrieb in Form eines Elektromotors 60 in Drehantriebsverbindung, dessen Abtriebswelle 62 in Fig. 3 in die Zeichenebene hinein verläuft und somit relativ zu der Gewindespindel 56 unter einem Winkel von 90° angeordnet ist. Der Elektromotor 60 ist an einer Innenwandung des Gehäuses 34 angeordnet und wird über eine nicht dargestellte Steuereinrichtung angesteuert. Die Gewindespindel 56 ist mittels eines Kugellagers 64 drehbar gelagert.The threaded spindle 56 is connected via a bevel gear 58 to a rotary drive in the form of an electric motor 60 in a rotary drive connection, the output shaft 62 of which in FIG. 3 extends into the plane of the drawing and is thus arranged at an angle of 90 ° relative to the threaded spindle 56. The electric motor 60 is arranged on an inner wall of the housing 34 and is controlled by a control device, not shown. The threaded spindle 56 is rotatably supported by means of a ball bearing 64.
Die Funktionsweise des erfindungsgemäßen Möbel- antriebs 36 ist wie folgt:The mode of operation of the furniture drive 36 according to the invention is as follows:
In der in Fig. 1 dargestellten Verstellage des Beinstützteiles 6 und des Wadenstützteiles 8 relativ zu dem mittleren Stützteil 4 befindet sich die Spindelmutter 52 in Axialrichtung der Gewindespindel 56 im Bereich des dem Elektromotor 60 abgewandten Endes der Gewindespindel 56. Zum Verstellen des Beinstützteiles 6 und des Wadenstützteiles 8 in die in Fig. 2 dargestellte Verstellage treibt der Elektromotor 60 die Gewindespindel 56 derart an, daß sich die Spindelmutter 52, die bei diesem Ausführungsbeispiel als Zugelement ausgebildet ist, in Fig. 3 nach rechts schraubt und hierbei eine Zugkraft nach rechts in Fig. 3 auf das Zugband 44 ausübt. Hierdurch verschwenkt der Schwenkhebel 38 um die Schwenkachse 40, so daß sich die Welle 20 um die Schwenkachse 42 dreht und über den Verstellhebel 14 das Beinstützteil 6 und das Wadenstützteil 8 relativ zu dem mittleren Stützteil 4 verschwenkt .In the adjustment position of the leg support part 6 and the calf support part 8 shown in FIG. 1 relative to The central support part 4 has the spindle nut 52 in the axial direction of the threaded spindle 56 in the region of the end of the threaded spindle 56 facing away from the electric motor 60. To adjust the leg support part 6 and the calf support part 8 to the adjustment position shown in FIG. 2, the electric motor 60 drives the threaded spindle 56 such that the spindle nut 52, which in this embodiment is designed as a tension element, screws to the right in FIG. 3 and in this case exerts a tension force to the right in FIG. 3 on the tension band 44. As a result, the pivot lever 38 pivots about the pivot axis 40, so that the shaft 20 rotates about the pivot axis 42 and pivots the leg support part 6 and the calf support part 8 relative to the central support part 4 via the adjusting lever 14.
In der in Fig. 2 dargestellten Verstellage des Beinstützteiles 6 und des Wadenstützeiles 8 relativ zu dem mittleren Stützteil 4 befindet sich die Spindelmut- ter 52 im Bereich des dem Motor 60 zugewandten Endes der Gewindespindel 56, wie in Fig. 3 dargestellt. Die Rückstellung in die in Fig. 1 dargestellte Verstellage erfolgt unter der Gewichtskraft der Stützteile 6, 8.In the adjustment position of the leg support part 6 and the calf support part 8 shown in FIG. 2 relative to the central support part 4, the spindle nut 52 is located in the region of the end of the threaded spindle 56 facing the motor 60, as shown in FIG. 3. The return to the adjustment position shown in FIG. 1 takes place under the weight of the support parts 6, 8.
Mit dem erfindungsgemäßen Möbelantrieb lassen sich während der gesamten Verstellbewegung, also auch am Ende der Verstellbewegung, große Kräfte aufbringen. Dadurch, daß das Zugband 44 nach Art eines Flaschenzuges umgelenkt ist, kann als Antrieb ein kleiner und damit kompakter Motor verwendet werden. Der erfindungs- gemäße Möbelantrieb 36 ist darüber hinaus einfach im Aufbau und damit kostengünstig herstellbar.With the furniture drive according to the invention, large forces can be applied during the entire adjustment movement, that is to say also at the end of the adjustment movement. Because the tension band 44 is deflected in the manner of a pulley block, a small and thus compact motor can be used as the drive. The furniture drive 36 according to the invention is also simple in construction and therefore inexpensive to manufacture.
Der weitere Möbelantrieb 36' ist in entsprechender Weise aufgebaut und dient zur Verstellung der Stützteile 10, 12 relativ zu dem mittleren Stützteil 6, wo- bei noch eine zusätzliche Umlenkrolle 66 vorgesehen ist, um eine parallele Anordnung der Gewindespindeln 56 und 56' zu ermöglichen, so daß ein kompakter Aufbau des durch die Möbelantriebe 36 und 36' gebildeten Doppel- antriebes erreicht ist .The further furniture drive 36 'is constructed in a corresponding manner and is used to adjust the support parts 10, 12 relative to the central support part 6, where an additional deflection roller 66 is provided to enable a parallel arrangement of the threaded spindles 56 and 56 ', so that a compact structure of the double drive formed by the furniture drives 36 and 36' is achieved.
In Fig. 4 ist ein zweites Ausführungsbeispiel eines erfindungsgemäßen Möbelantriebes dargestellt, das sich von dem Ausführungsbeispiel gemäß Fig. 1 dadurch unterscheidet, daß das linear bewegliche Antriebsele- ment durch eine in ihrer Axialrichtung verstellbar gelagerte Spindel 68 gebildet ist, die bei diesem Ausführungsbeispiel als Gewindespindel ausgebildet ist. Zum Verstellen der Spindel 68 ist eine ortsfeste, auf der Spindel 68 angeordnete, drehantreibbare Spindelmut- ter 70 vorgesehen, die mit der Abtriebswelle 62 des4 shows a second exemplary embodiment of a furniture drive according to the invention, which differs from the exemplary embodiment according to FIG. 1 in that the linearly movable drive element is formed by a spindle 68 which is adjustably mounted in its axial direction and which in this exemplary embodiment is a threaded spindle is trained. To adjust the spindle 68, a stationary spindle nut 70, which is arranged on the spindle 68 and can be driven in rotation, is provided, which is connected to the output shaft 62 of the
Motors 60 in Drehantriebsverbindung steht. Das zweite Ende 57 des Zugbandes 44 ist an einem Ende der Spindel 68 festgelegt. Zum Verstellen des Schwenkhebels 38 relativ zu dem Gehäuse 34 treibt der Motor 60 die Spin- delmutter 70 an, so daß sich die Spindel 68 entsprechend der Drehrichtung der Spindelmutter 70 in Fig. 4 nach links oder rechts schraubt, wodurch der Schwenkhebel 38 relativ zu dem Gehäuse 34 verschwenkt und dadurch das Beinstützteil 6 und das Wadenstützteil 8 re- lativ zu dem mittleren Stützteil 4 verschwenkt werden. In Fig. 5 ist eine Einzelheit eines dritten Ausführungsbeispieles eines erfindungsgemäßen Möbel- antriebs 36 dargestellt, das sich von dem Ausführungsbeispiel gemäß Fig. 4 vor allem dadurch unterscheidet, daß als relativ zu dem Gehäuse 34 um die SchwenkachseMotor 60 is in rotary drive connection. The second end 57 of the tension band 44 is fixed to one end of the spindle 68. To adjust the pivot lever 38 relative to the housing 34, the motor 60 drives the spindle nut 70 so that the spindle 68 screws to the left or right in accordance with the direction of rotation of the spindle nut 70 in FIG. 4, as a result of which the pivot lever 38 relative to that Housing 34 is pivoted and thereby the leg support part 6 and the calf support part 8 are pivoted relative to the central support part 4. FIG. 5 shows a detail of a third exemplary embodiment of a furniture drive 36 according to the invention, which differs from the exemplary embodiment according to FIG. 4 primarily in that it is relative to the housing 34 about the pivot axis
40 verschwenkbares zweites Teil ein Teil 72 vorgesehen ist, das nach Art eines zweiarmigen Hebels ausgebildet ist, an dem an zur Schwenkachse 40 diametral gegenüberliegenden Stellen Umlenkrollen 74 bzw. 76 angeordnet sind. Das erste Ende 45 des Zugbandes 44 ist an dem Gehäuse 34 festgelegt und von dort über die Umlenkrolle 76 zu einer an dem Gehäuse angeordneten Umlenkrolle 78 und von dieser zu einer ebenfalls an dem Gehäuse an- geordneten Umlenkrolle 80 geführt. Von der Umlenkrolle 80 ist das Zugband 44 über die Umlenkrolle 74 zu der Spindel 68 geführt, an deren Ende das zweite Ende 57 des Zugbandes 44 festgelegt ist. Dadurch, daß das Zugband 44 bei dieser Ausfuhrungsform beiderseits der Schwenkachse 40 an dem zweiten Teil 72 angreift, werden geringere Kräfte in das Gehäuse 34 eingeleitet.40 pivotable second part, a part 72 is provided, which is designed in the manner of a two-armed lever, on which deflection rollers 74 and 76 are arranged at points diametrically opposite the pivot axis 40 are. The first end 45 of the tension band 44 is fixed to the housing 34 and from there via the deflection roller 76 to a deflection roller 78 arranged on the housing and from there to a deflection roller 80 likewise arranged on the housing. The tension band 44 is guided from the deflection roller 80 via the deflection roller 74 to the spindle 68, at the end of which the second end 57 of the tension band 44 is fixed. Because the tension band 44 in this embodiment acts on both sides of the pivot axis 40 on the second part 72, lower forces are introduced into the housing 34.
Fig. 5 zeigt den Möbelantrieb 36 in einer Verstellage, in der das Beinstützteil 6 und das Wadenstützteil 8 relativ zu dem mittleren Stützteil 4 nicht ver- schwenkt sind (siehe Fig. 1) .5 shows the furniture drive 36 in an adjustment position in which the leg support part 6 and the calf support part 8 are not pivoted relative to the central support part 4 (see FIG. 1).
Fig. 6 zeigt den Möbelantrieb 36 gemäß Fig. 5 in einer Verstellage, in der das Beinstützteil 6 und das Wadenstützteil 8 relativ zu dem mittleren Stützteil 4 verschwenkt sind (vgl. Fig. 1). In Fig. 7 ist ein viertes Ausführungsbeispiel des erfindungsgemäßen Möbelantriebs 36 dargestellt, das sich von dem Ausführungsbeispiel gemäß Fig. 5 zunächst dadurch unterscheidet, daß das linear bewegliche Antriebselement durch eine Spindelmutter 52 gebildet ist, die verdrehsicher und in Axialrichtung einer Gewindespindel 56 beweglich auf dieser gehalten. Das erste Ende 45 des Zugbandes 44 ist bei diesem Ausführungsbei- spiel an dem' Teil 72 festgelegt und von dort über eine an dem Gehäuse 34 angeordnete Umlenkrolle 80 über die Umlenkrolle 76 zu der Umlenkrolle 78 geführt. Von der Umlenkrolle 78 ist das Zugband 44 über eine an der Spindelmutter 52 angeordnete Umlenkrolle 42 zu der Umlenkrolle 74 geführt. Von der Umlenkrolle 74 ist das Zugband 44 über eine an dem Gehäuse angeordnete Umlenk- rolle 84 und von dieser zurück zu dem zweiten Teil 72 geführt, an dem das zweite Ende 57 des Zugbandes 44 festgelegt ist.FIG. 6 shows the furniture drive 36 according to FIG. 5 in an adjustment position in which the leg support part 6 and the calf support part 8 are pivoted relative to the central support part 4 (cf. FIG. 1). In Fig. 7, a fourth embodiment of the furniture drive 36 according to the invention is shown, which differs from the embodiment of FIG. 5 first in that the linearly movable drive element is formed by a spindle nut 52 which is non-rotatable and movable in the axial direction of a threaded spindle 56 thereon held. The first end 45 of the drawstring 44 is in this exemplary embodiment 72 play set and from there via a arranged on the housing 34 guide roller 80 via the deflection roller 76 to the guide roller 78 on the 'part. The tension band 44 is guided from the deflection roller 78 via a deflection roller 42 arranged on the spindle nut 52 to the deflection roller 74. From the deflection roller 74, the tension band 44 is via a deflection arranged on the housing. roll 84 and from this back to the second part 72 on which the second end 57 of the drawstring 44 is fixed.
Auf diese Weise ist im Vergleich zu dem Ausfüh- rungsbeispiel gemäß Fig. 5 eine zusätzliche Übersetzung erzielt .In this way, an additional translation is achieved in comparison to the exemplary embodiment according to FIG. 5.
Fig. 7 zeigt den Möbelantrieb 36 in einer Verstellage, in der das Beinstützteil 6 und das Wadenstützteil 8 relativ zu dem mittleren Stützteil 4 nicht ver- schwenkt sind (siehe Fig. 1) .FIG. 7 shows the furniture drive 36 in an adjustment position in which the leg support part 6 and the calf support part 8 are not pivoted relative to the central support part 4 (see FIG. 1).
Fig. 8 zeigt den Möbelantrieb 36 gemäß Fig. 7 in einer Verstellage, in der das Beinstützteil 6 und das Wadenstützteil 8 relativ zu dem mittleren Stützteil 4 verschwenkt sind (siehe Fig. 2) . Fig. 9 zeigt ein fünftes Ausführungsbeispiel eines erfindungsgemäßen Möbelantriebs 36, bei dem eine dem Teil 72 zugeordnete Umlenkrolle 86 nicht an dem Teil 72, sondern an einem Zwischenteil angeordnet ist. Das Zwischenteil ist bei diesem Ausführungsbeispiel durch einen Hebel 88 gebildet, der zusammen mit einem Hebel 90 ein Hebelgetriebe bzw. Gelenkgetriebe bildet.FIG. 8 shows the furniture drive 36 according to FIG. 7 in an adjustment position in which the leg support part 6 and the calf support part 8 are pivoted relative to the central support part 4 (see FIG. 2). FIG. 9 shows a fifth exemplary embodiment of a furniture drive 36 according to the invention, in which a deflection roller 86 assigned to the part 72 is not arranged on the part 72 but on an intermediate part. In this exemplary embodiment, the intermediate part is formed by a lever 88 which, together with a lever 90, forms a lever gear or articulated gear.
Die Umlenkrolle 86 ist an einem Ende 92 des Hebels 88 angeordnet, dessen anderes Ende 94 an dem Gehäuse 34 angelenkt ist. Entfernt von den Enden 92, 94 des Hebels 88 ist an diesem ein Ende 96 des Hebels 90 angelenkt, dessen anderes Ende 98 an dem zweiten Teil 72 angelenkt ist.The deflection roller 86 is arranged at one end 92 of the lever 88, the other end 94 of which is articulated on the housing 34. At a distance from the ends 92, 94 of the lever 88, an end 96 of the lever 90 is articulated thereon, the other end 98 of which is articulated on the second part 72.
Das erste Ende 45 des Zugbandes 44 ist bei diesem Ausführungsbeispiel an dem Gehäuse 34 festgelegt und um die Umlenkrolle 86 und eine an dem Gehäuse 34 angeordnete Umlenkrolle 100 zu dem in Fig. 9 nicht dargestellten linear beweglichen Antriebselement geführt, an dem sein zweites Ende 57 festgelegt ist.In this exemplary embodiment, the first end 45 of the tension band 44 is fixed to the housing 34 and is guided around the deflecting roller 86 and a deflecting roller 100 arranged on the housing 34 to the linearly movable drive element, not shown in FIG. 9, to which its second end 57 is fixed is.
Fig. 9 zeigt den Möbelantrieb 36 in einer Verstel- läge, in der das Beinstützteil 6 und das Wadenstützteil 8 relativ zu dem mittleren Stützteil 4 nicht verschwenkt sind (siehe Fig. 1) .9 shows the furniture drive 36 in an adjustment would lie in which the leg support part 6 and the calf support part 8 are not pivoted relative to the central support part 4 (see FIG. 1).
Fig. 10 zeigt den Möbelantrieb 36 gemäß Fig. 9 in einer Verstellage, in der das Beinstützteil 6 und das Wadenstutzeil 8 relativ zu dem mittleren Stützteil 4 verschwenkt sind (siehe Fig. 2) . FIG. 10 shows the furniture drive 36 according to FIG. 9 in an adjustment position in which the leg support part 6 and the calf support part 8 are pivoted relative to the central support part 4 (see FIG. 2).

Claims

Patentansprüche claims
1. Möbelantrieb zum Verstellen von Teilen eines Möbels relativ zueinander,1. Furniture drive for adjusting parts of a piece of furniture relative to one another,
mit einem ersten Teil,with a first part,
mit einem relativ zu dem ersten Teil verstellbaren zweiten Teil undwith a second part adjustable relative to the first part and
mit einem seil-, band- oder kettenförmigen Zug- mittel, dessen erstes Ende an einem der Teile festgelegt ist und das zum Verstellen der Teile relativ zueinander mit Antriebsmitteln in Wirkungsverbindung steht, wobei das Zugmittel nach Art eines Flaschenzuges abwechselnd über wenig- stens eine dem ersten Teil zugeordnete Umlenkung und über wenigstens eine dem zweiten Teil zugeordnete Umlenkung geführt ist,with a rope, band or chain-shaped traction means, the first end of which is fixed to one of the parts and which is operatively connected to drive means for adjusting the parts relative to one another, the traction means, in the manner of a pulley, alternating over at least one of the deflection assigned to the first part and guided over at least one deflection assigned to the second part,
dadurch gekennzeichnet,characterized,
daß die Antriebsmittel ein linear bewegliches Antriebselement aufweisen, das mit dem Zugmittel (44) zum Verstellen des zweiten Teiles relativ zu dem ersten Teil in Wirkungsverbindung steht.that the drive means have a linearly movable drive element which is operatively connected to the traction means (44) for adjusting the second part relative to the first part.
Möbelantrieb nach Anspruch 1, dadurch gekennzeichnet, daß das erste Ende (45) des Zugmittels (44) an dem zweiten Teil festgelegt ist.Furniture drive according to claim 1, characterized in that the first end (45) of the traction means (44) is fixed to the second part.
3. Möbelantrieb nach Anspruch 1 , dadurch gekennzeich- net, daß das zweite Ende (57) des Zugmittels (44) an dem linear beweglichen Antriebselement festgelegt ist.3. Furniture drive according to claim 1, characterized gekennzeich- net that the second end (57) of the traction means (44) is fixed to the linearly movable drive element.
4. Möbelantrieb nach Anspruch 1, dadurch gekennzeichnet, daß das linear bewegliche Antriebselement als Zugelement ausgebildet ist und zum Verstellen des zweiten Teiles relativ zu dem ersten Teil eine Zugkraft auf das Zugmittel (44) ausübt.4. Furniture drive according to claim 1, characterized in that the linearly movable drive element is designed as a tension element and exerts a tensile force on the traction means (44) for adjusting the second part relative to the first part.
5. Möbelantrieb nach Anspruch 1, dadurch gekennzeichnet, daß das linear bewegliche Antriebselement eine Spindelmutter (52) ist, die verdrehsicher und in Axialrichtung beweglich auf einer drehantreib- baren Stellspindel gehalten ist.5. Furniture drive according to claim 1, characterized in that the linearly movable drive element is a spindle nut (52) which is held against rotation and movable in the axial direction on a rotationally drivable adjusting spindle.
6. Möbelantrieb nach Anspruch 5, dadurch gekennzeichnet, daß die Stellspindel als Gewindespindel (56) ausgebildet ist.6. Furniture drive according to claim 5, characterized in that the adjusting spindle is designed as a threaded spindle (56).
7. Möbelantrieb nach Anspruch 1, dadurch gekennzeichnet, daß das linear bewegliche Antriebselement eine in ihrer Axialrichtung verstellbar gelagerte Spindel (68) ist.7. Furniture drive according to claim 1, characterized in that the linearly movable drive element is a spindle (68) which is adjustably mounted in its axial direction.
8. Möbelantrieb nach Anspruch 7, dadurch gekennzeichnet, daß zum Verstellen der Spindel (68) eine ortsfeste, auf der Spindel angeordnete, drehan- treibbare Spindelmutter (70) vorgesehen ist.8. Furniture drive according to claim 7, characterized in that a fixed, arranged on the spindle, rotatably driven spindle nut (70) is provided for adjusting the spindle (68).
9. Möbelantrieb nach Anspruch 8 , dadurch gekennzeichnet, daß die Spindel (68) eine Gewindespindel ist.9. Furniture drive according to claim 8, characterized in that the spindle (68) is a threaded spindle.
10. Möbelantrieb nach Anspruch 1, dadurch gekennzeich- net, daß das Zugmittel (44) nach Art eines mindestens -strängigen Flaschenzuges abwechselnd über dem ersten Teil zugeordnete Umlenkungen (46, 48) und dem zweiten Teil zugeordnete Umlenkungen (50) geführt' ist .10. Furniture drive according to claim 1, characterized gekennzeich- net that the traction means (44) is guided in the manner of an at least stranded pulley alternately over the first part associated deflections (46, 48) and the second part associated deflections (50) '.
11. Möbelantrieb nach Anspruch 1, dadurch gekennzeichnet, daß das erste Teil relativ zu dem zweiten Teil verschwenkbar ist, derart, daß der Möbelan- trieb (36) als Schwenkantrieb ausgebildet ist.11. Furniture drive according to claim 1, characterized in that the first part is pivotable relative to the second part, such that the furniture drive (36) is designed as a pivot drive.
12. Möbelantrieb nach Anspruch 11, dadurch gekennzeichnet, daß eines der Teile einen Schwenkhebel (38) aufweist, dem wenigstens eine Umlenkung zu- geordnet ist.12. Furniture drive according to claim 11, characterized in that one of the parts has a pivot lever (38) which is assigned at least one deflection.
13. Möbelantrieb nach Anspruch 12, dadurch gekennzeichnet, daß der Schwenkhebel (38) drehfest mit einer drehbar gelagerten Welle (20) verbindbar ist, die in Montageposition des Möbelantriebes13. Furniture drive according to claim 12, characterized in that the pivot lever (38) is rotatably connected to a rotatably mounted shaft (20), which is in the mounting position of the furniture drive
(36) mit einem Teil des Möbels zum Verstellen desselben in WirkungsVerbindung steht .(36) is operatively connected to part of the furniture for adjusting the same.
14. Möbelantrieb nach Anspruch 13, dadurch gekenn- zeichnet, daß der Schwenkhebel (38) zur Bildung einer drehfesten Verbindung formschlüssig mit der Welle (20) verbindbar ist.14. Furniture drive according to claim 13, characterized in that the pivot lever (38) can be positively connected to the shaft (20) to form a rotationally fixed connection.
15. Möbelantrieb nach Anspruch 14, dadurch gekenn- zeichnet, daß die Welle (20) einen unrunden Querschnitt aufweist und in Montageposition des Möbel- antriebs (36) formschlüssig in eine Ausnehmung (42) des Schwenkhebels (38) eingreift, die zum Querschnitt der Welle (20) im wesentlichen kom- plementär geformt ist.15. Furniture drive according to claim 14, characterized in that the shaft (20) has a non-circular cross-section and in the mounting position of the furniture drive (36) positively engages in a recess (42) of the pivot lever (38), which to the cross section of the Shaft (20) essentially completely is shaped complementarily.
16. Möbelantrieb nach Anspruch 15, dadurch gekennzeichnet, daß die Ausnehmung (42) des Schwenkhe- bels (38) in Radialrichtung der Welle (20) offen ausgebildet ist und daß Verriegelungsmittel zur Verriegelung der Welle (20) in der Ausnehmung (42) vorgesehen sind.16. Furniture drive according to claim 15, characterized in that the recess (42) of the pivoting lever (38) in the radial direction of the shaft (20) is open and that locking means are provided for locking the shaft (20) in the recess (42) are.
17. Möbelantrieb nach Anspruch 12, dadurch gekennzeichnet, daß der Schwenkhebel (38)- als zweiarmiger Hebel ausgebildet ist, wobei jedem Hebelarm wenigstens eine Umlenkung (50) zugeordnet ist.17. Furniture drive according to claim 12, characterized in that the pivot lever (38) - is designed as a two-armed lever, wherein each lever arm is assigned at least one deflection (50).
18. Möbelantrieb nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß eine Umlenkung, die einem der Teile zugeordnet ist, an diesem Teil angeordnet ist.18. Furniture drive according to one of the preceding claims, characterized in that a deflection, which is assigned to one of the parts, is arranged on this part.
19. Möbelantrieb nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß eine Umlenkung, die einem der Teile zugeordnet ist, an einem mit diesem Teil in Kraftübertragungsverbindung stehenden Zwischenteil angeordnet ist.19. Furniture drive according to one of the preceding claims, characterized in that a deflection, which is assigned to one of the parts, is arranged on an intermediate part with this part in power transmission connection.
20. Möbelantrieb nach Anspruch 19, dadurch gekennzeichnet, daß das Zwischenteil ein Hebel (88) eines Hebelgetriebes (88, 90) ist.20. Furniture drive according to claim 19, characterized in that the intermediate part is a lever (88) of a lever mechanism (88, 90).
21. Möbelantrieb nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Umlenkungen (46, 48, 50) durch Umlenkrollen gebildet sind.21. Furniture drive according to one of the preceding claims, characterized in that the deflections (46, 48, 50) are formed by deflection rollers.
22. Möbelantrieb nach Anspruch 10 und 21, dadurch ge- kennzeichnet, daß die dem ersten Teil zugeordneten Umlenkrollen koaxiale Drehachsen aufweisen oder auf einer gemeinsamen Drehachse angeordnet sind.22. Furniture drive according to claim 10 and 21, thereby indicates that the deflection rollers assigned to the first part have coaxial axes of rotation or are arranged on a common axis of rotation.
23. Mδbelantrieb nach Anspruch 10 und 21, dadurch gekennzeichnet, daß die dem zweiten Teil (72) zugeordneten Umlenkrollen koaxiale Drehachsen aufweisen oder auf einer gemeinsamen Drehachse angeordnet sind.23. Furniture drive according to claim 10 and 21, characterized in that the deflecting rollers assigned to the second part (72) have coaxial axes of rotation or are arranged on a common axis of rotation.
24. Möbelantrieb nach Anspruch 10 und 21, dadurch gekennzeichnet, daß die dem ersten Teil (34) zugeordneten Umlenkrollen (78, 80) zueinander parallele Drehachsen aufweisen.24. Furniture drive according to claim 10 and 21, characterized in that the deflecting rollers (78, 80) assigned to the first part (34) have mutually parallel axes of rotation.
25. Möbelantrieb nach Anspruch 10 und 21, dadurch gekennzeichnet, daß die dem zweiten Teil (72) zugeordneten Umlenkrollen (74, 76) zueinander parallele Drehachsen aufweisen.25. Furniture drive according to claim 10 and 21, characterized in that the deflecting rollers (74, 76) assigned to the second part (72) have mutually parallel axes of rotation.
26. Möbelantrieb nach Anspruch 1, dadurch gekennzeichnet, daß die Antriebsmittel wenigstens einen Motor26. Furniture drive according to claim 1, characterized in that the drive means at least one motor
(60) , insbesondere einen Elektromotor, aufweisen.(60), in particular an electric motor.
27. Möbelantrieb nach Anspruch 5 und 26, dadurch gekennzeichnet, daß der Motor (60) mit der Stell- spindel über ein Getriebe (58) in Antriebsverbindung steht .27. Furniture drive according to claim 5 and 26, characterized in that the motor (60) with the adjusting spindle via a gear (58) is in drive connection.
28. Motorisch verstellbare Stützeinrichtung für eine Polsterung eines Sitz- und/oder Liegemöbels, beispielsweise eine Matratze eines Bettes,28. Motor-adjustable support device for upholstering a seating and / or reclining furniture, for example a mattress of a bed,
mit einem ersten Stützteil und wenigstens einem zweiten Stützteil zur flächigen Abstützung der Polsterung, wobei das erste Stützteil und das zweite Stützteil gelenkig miteinander verbunden sind und durch eine Antriebseinrichtung relativ zueinander verschwenkbar sind,with a first support part and at least one second support part for flat support of the upholstery, the first support part and the second support part being connected to one another in an articulated manner and being pivotable relative to one another by a drive device,
dadurch gekennzeichnet,characterized,
daß die Antriebseinrichtung wenigstens einen Möbelantrieb (36) nach einem der vorhergehenden Ansprüche aufweisen.that the drive device has at least one furniture drive (36) according to one of the preceding claims.
29. Stützeinrichtung nach Anspruch 28, dadurch gekennzeichnet, daß die Stützeinrichtung (2) als Latten- rost ausgebildet ist.29. Support device according to claim 28, characterized in that the support device (2) is designed as a slatted frame.
30. Sitz- und/oder Liegemöbel, dadurch gekennzeichnet, daß es eine Stützeinrichtung nach Anspruch 28 oder 29 aufweist. 30. Seating and / or reclining furniture, characterized in that it has a support device according to claim 28 or 29.
EP01947390A 2000-06-29 2001-06-23 Furniture drive device for moving parts of a piece of furniture in relation to each other Expired - Lifetime EP1294255B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10031737 2000-06-29
DE10031737A DE10031737C2 (en) 2000-06-29 2000-06-29 Furniture drive for adjusting parts of a piece of furniture relative to one another
PCT/EP2001/007151 WO2002000065A1 (en) 2000-06-29 2001-06-23 Furniture drive device for moving parts of a piece of furniture in relation to each other

Publications (2)

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EP1294255A1 true EP1294255A1 (en) 2003-03-26
EP1294255B1 EP1294255B1 (en) 2006-12-06

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EP (1) EP1294255B1 (en)
AT (1) ATE347293T1 (en)
AU (1) AU2001269085A1 (en)
DE (3) DE20022606U1 (en)
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AU2001269085A1 (en) 2002-01-08
DE50111591D1 (en) 2007-01-18
EP1294255B1 (en) 2006-12-06
DE20022606U1 (en) 2001-12-20
ATE347293T1 (en) 2006-12-15
DE10031737A1 (en) 2002-03-14
WO2002000065A1 (en) 2002-01-03

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