EP1416832A1 - Entrainement de meuble destine a deplacer des elements d'un meuble les uns par rapport aux autres - Google Patents

Entrainement de meuble destine a deplacer des elements d'un meuble les uns par rapport aux autres

Info

Publication number
EP1416832A1
EP1416832A1 EP02772121A EP02772121A EP1416832A1 EP 1416832 A1 EP1416832 A1 EP 1416832A1 EP 02772121 A EP02772121 A EP 02772121A EP 02772121 A EP02772121 A EP 02772121A EP 1416832 A1 EP1416832 A1 EP 1416832A1
Authority
EP
European Patent Office
Prior art keywords
lever
furniture
drive
adjusting
adjusting element
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
EP02772121A
Other languages
German (de)
English (en)
Other versions
EP1416832B1 (fr
EP1416832B2 (fr
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
Linak AS
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7694208&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1416832(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Cimosys AG, Linak AS, Cimosys Ltd filed Critical Cimosys AG
Publication of EP1416832A1 publication Critical patent/EP1416832A1/fr
Publication of EP1416832B1 publication Critical patent/EP1416832B1/fr
Application granted granted Critical
Publication of EP1416832B2 publication Critical patent/EP1416832B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C20/00—Head -, foot -, or like rests for beds, sofas or the like
    • A47C20/04—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.
  • a furniture drive of the type in question which has a base body in the form of a housing, on which an adjusting element is pivotably mounted for adjusting a part of the furniture.
  • the known furniture drive also has a drive element which is in drive connection with the adjusting element for adjusting the same.
  • the invention has for its object to provide a furniture drive of the type mentioned in the preamble of claim 1, which is simple and inexpensive to manufacture, which is robust in construction and suitable for applying large forces.
  • a lever mechanism is arranged in the drive train between the drive element and the adjusting element.
  • the furniture drive according to the invention is simple and inexpensive to manufacture, robust in construction and suitable for applying large forces.
  • An extremely advantageous development of the teaching of claim 1 provides that the drive element or an intermediate part connected thereto loosely acts on a lever of the lever mechanism.
  • the adjustment element is adjusted from an initial position to an adjustment position in that the drive element or the intermediate part acts on an lever of the lever mechanism with an adjustment force.
  • the adjustment element is reset from the adjustment position back to the starting position under the weight of a part of a piece of furniture adjusted with the adjustment element, for example a support part of a slatted frame.
  • the adjusting element with the lever gear can be moved freely from the starting position into the adjusting position when the drive is switched off, so that, for example, the installation of the drive in a piece of furniture, for example a piece of furniture Slatted frame, is simplified.
  • the intermediate part is a slide which is operatively connected to a lever of the lifting mechanism which can be subjected to pressure when the adjusting element is adjusted.
  • This embodiment is particularly simple and inexpensive to manufacture.
  • the slider can be designed in any suitable manner, for example formed by a spindle nut or a part connected to an adjusting spindle.
  • the lever mechanism is spaced apart from one another on at least two in the circumferential direction of the pivot axis of the adjusting element. deten places on the adjusting element attacks. In this way, based on the pivot axis of the adjusting element, a uniform introduction of the force exerted by the lever mechanism into the adjusting element is achieved in the circumferential direction. Tension and twisting of the adjustment element are thus reliably avoided.
  • a particularly uniform introduction of force results from the fact that the lever mechanism acts on the adjusting element at at least two points diametrically opposite one another with respect to the pivot axis, as is provided by a development of the aforementioned embodiment.
  • the structure of the lever mechanism can be selected within wide limits in accordance with the respective requirements, it being possible, for example, to use single-arm levers, two-arm levers or angle levers or other levers.
  • the number of levers and their length ratios can be selected within wide limits in order to set a desired reduction ratio.
  • the lever mechanism has a first lever, one end of which is articulated on the adjusting element and which is in power transmission connection with the drive element.
  • the lever mechanism has a second lever which is articulated on the adjusting element, one of the levers stressing the adjusting element in tension and the other lever stressing the adjusting element in compression for adjusting the adjusting element. This embodiment is simple and therefore inexpensive to manufacture.
  • first lever and the second levers are coupled to one another by coupling means.
  • the coupling means ensures that the two levers perform the movements required for adjusting the adjusting element in a coordinated manner.
  • the coupling means can be designed in any suitable manner. A particularly simple and therefore inexpensive to develop the embodiment with the coupling means provides that the coupling means have a third lever.
  • the third lever is expediently a two-armed lever, one lever arm of which is articulated on the first lever and the other lever arm of which is articulated on the second lever.
  • This embodiment is particularly simple in construction and thus particularly inexpensive to manufacture. In addition, it is particularly robust.
  • the drive element of the furniture drive according to the invention is expediently a linearly movable drive element.
  • the linearly movable drive element is a spindle nut which is secured against rotation and is movable in the axial direction on an adjusting spindle which can be driven in rotation.
  • spindle drives are available as simple and inexpensive standard components and are suitable for applying large forces.
  • the linearly movable drive element can, however, also be an adjusting spindle which is movable in the axial direction and guided against rotation, on which a spindle nut which can be driven in rotation is arranged.
  • Adjustment element can be connected in a rotationally fixed manner to a rotatably mounted shaft which, in the assembly position of the furniture drive, is operatively connected to part of the furniture for adjusting the same.
  • This embodiment is simple in construction and particularly robust, so that particularly large forces can be applied with the furniture drive according to the invention in accordance with this embodiment.
  • the assembly of the furniture drive on a piece of furniture is simplified.
  • the adjusting element can be positively connected to the shaft to form a rotationally fixed connection. This embodiment is also particularly robust and suitable for transmitting particularly large forces.
  • the shafts have a non-circular cross-section and in the assembly position of the furniture drive engages in a form-fitting manner in a recess of the adjusting element which is essentially complementary to the cross-section of the shaft.
  • This embodiment is particularly simple in construction and thus particularly inexpensive to manufacture.
  • it is particularly robust and facilitates the assembly of the furniture drive on the furniture.
  • the recess of the pivot lever is designed to be open in the radial direction of the shaft. This facilitates the insertion of the shaft into the recess when assembling the furniture drive according to the invention.
  • locking means can be provided for locking the shaft in the recess if necessary.
  • a motor-driven support device provided with a furniture drive according to the invention for upholstering seating and / or reclining furniture, for example a mattress of a bed, is specified in claim 19.
  • Claim 20 specifies a development of the support device according to the invention.
  • a seating and / or reclining furniture provided with a support device according to the invention is specified in claim 21.
  • FIG. 1 shows a schematic side view of an embodiment of a support device according to the invention in the form of a slatted frame, the support parts of the support device not being adjusted relative to one another,
  • FIG. 3 in a highly schematic side view of part of an exemplary embodiment of a furniture drive according to the invention designed as a double drive in a first adjustment position, one half of the housing being omitted for illustration, 4 in the same representation as FIG. 3, but on a smaller scale, the furniture drive according to FIG. 3 in a second version Position, Fig. 5 in the same representation as Fig. 4 the
  • FIG. 3 in a third adjustment position and FIG. 6 on a smaller scale compared to FIG. 3 the furniture drive according to FIG. 3, with half of the housing being omitted for the sake of illustration and both drive units of the double drive being shown.
  • FIG. 1 shows an embodiment of a support device 2 according to the invention in the form of a slatted frame for supporting an upholstery of a seating and / or reclining furniture (not shown in the drawing), 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 pivotable about a horizontal pivot axis with an upper body support part 10, which is articulated on its side facing away from the center support part 4 and pivotable about a horizontal pivot axis with a head support part 12 is connected.
  • an adjusting lever 14 is provided, one end 16 of which is articulated on the calf support part 8 and the other end 18 of which is rotatably connected to one not shown in the drawing about a horizontal axis of rotation Frame of the support device 2 rotatably mounted shaft 20 is connected in the form of a square shaft.
  • a further adjustment lever 22 is provided, one end 23 of which is rotatably mounted with a shaft 24 which is 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.
  • 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 mounted on the frame of the support device 2, not shown in the drawing. be consolidated.
  • FIG. 3 shows a highly schematic partial view of an exemplary embodiment of a furniture drive 36 according to the invention for adjusting parts of a piece of furniture relative to one another, the basic body of which is formed by the housing 34 in this exemplary embodiment.
  • the furniture drive 36 has two drive units 35, 35 'accommodated in the housing 34, of which only the drive unit 35 can be seen in FIG. 3.
  • the drive unit 35 has an adjusting element 38 designed as a shaft holder, which is mounted on the housing 34 so as to be pivotable about a pivot axis 40.
  • the adjustment element 38 is positively connected to the shaft 20 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 of the adjusting element 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 shaft 20 is held frictionally in the recess 42 in the mounting position of the furniture drive 36.
  • the drive unit 35 also has a drive element which can be moved back and forth in the direction of a double arrow 43 and, in this exemplary embodiment, is by an adjusting spindle 44 which can be moved in the axial direction and is secured against rotation and on which a spindle nut 46 which can be driven in rotation is arranged.
  • An electric motor 48 is provided as a rotary drive for the spindle nut 46, which is connected to the spindle nut 46 via a gear 50 in a rotary drive connection.
  • a slide 52 which is guided on an inner wall 54 of the housing 34, is connected to the adjusting spindle 44 in a manner fixed against displacement and against rotation.
  • a lever gear 56 is arranged in the drive train between the adjusting spindle 44 and the adjusting element 38, which has a first lever 58, one end 60 of which is articulated eccentrically to the pivot axis 40 on the adjusting element 38 and the other end 62 of which on the spindle nut 46 facing surface of the slide 52 is applied and loosely acted upon by this.
  • the lever gear 56 also has a second lever 64, one end 66 of which is articulated on the adjusting element 38 eccentrically to the pivot axis 40.
  • the ends 60, 66 of the levers 58, 64 are articulated on the adjusting element 38 at locations diametrically opposite to the pivot axis 40.
  • the lever gear 56 also has a third lever 68, which in this exemplary embodiment is designed as a two-armed lever and can be pivoted about an axis 70 parallel to the pivot axis 40 of the adjusting element 38 on an inner wall of the
  • Housing 34 is mounted.
  • a lever arm 72 of the third lever 68 is articulated on the end 62 of the first lever 58 facing away from the adjusting element 38, while its other lever arm 74 is articulated on the end 76 of the second lever 64 facing away from the adjusting element 38.
  • the third lever 68 forms coupling means which transmit a movement of the first lever 58 to the second lever 64, so that movements of the levers 58, 64 are coupled to one another, the levers 58, 64 moving in opposite directions.
  • the first lever 58 and the second lever 64 have the same length.
  • the ends of the levers 58, 64 are hinged to the third lever 68 at the same distance from the pivot axis 70.
  • the third lever 68 consists of two flat lever parts spaced apart in the axial direction of the pivot axis 70, so that the lever arms 72, 74 are designed as forks, between which the levers 58, 64 are included.
  • the mode of operation of the furniture drive 36 according to the invention is as follows:
  • the shaft 20 In the assembly position of the furniture drive 36, the shaft 20 is received in a form-fitting manner in the receptacle 42 of the adjusting element 38, as can be seen from FIG. 3.
  • the electric motor 48 drives the spindle nut 6 in such a way that the adjusting spindle 44 with the slide 52 in FIG. 3 moves to the left 3, so that the first lever 58 also moves to the left in FIG. 3 and thereby pivots the third lever 68 in FIG. 3 clockwise, so that the second lever 64 in FIG. 3 simultaneously moves to the right.
  • the first lever 58 presses the adjusting element 38 under pressure
  • the second lever 64 presses the adjusting element 38 so that it pivots clockwise in FIG. 3. Because of this, the shaft 20 also pivots clockwise, so that the leg support part 6 together with the calf support part 8 is pivoted into the adjustment position shown in FIG. 2.
  • a return from the adjustment position shown in FIG. 2 to the starting position shown in FIG. 1 takes place under the weight of the leg support part 6 and the calf support part 8 and a person who may be resting on the support device, the furniture drive 36 being switched on.
  • the fact that the lever mechanism 56 acts on the adjusting element 38 at points spaced apart from one another in the circumferential direction of the pivot axis 40 and diametrically opposite with respect to the pivot axis 40 ensures a uniform introduction of force into the adjusting element 38. Tensions or twists of the adjusting element 38 resulting from an uneven introduction of force are thus reliably avoided.
  • the assembly of the furniture drive 36 on the support device 2 is simplified, since the adjusting element 38 can be freely rotated between the starting position and the adjusting position when the slider 52 is in its position 3 is in the starting position.
  • FIGS. 4 and 5 show the drive unit 35, which is shown in FIG. 3 in a first end position of the adjustment movement, in further adjustment positions, the adjustment position shown in FIG. 5 being a second end position of the adjustment movement.
  • a comparison of FIGS. 3 and 5 shows that the shaft 20 can be pivoted through 90 ° by means of the drive unit 35.
  • maximum pivoting angles of less than 90 ° or more than 90 ° can also be achieved.
  • FIG. 6 shows that in addition to the drive unit 35, a further drive unit 35 'is accommodated in the housing 34, so that the furniture drive 36 according to the invention is designed as a double drive in this exemplary embodiment.
  • the furniture drive according to the invention can in principle also be constructed as a single drive.
  • the drive unit 35 ' is in a corresponding to the drive unit 35 Built up way; its components are provided with reference numerals which correspond to the reference numerals of the components of the drive unit 35.
EP02772121A 2001-08-08 2002-08-05 Entrainement de meuble destine a deplacer des elements d'un meuble les uns par rapport aux autres Expired - Lifetime EP1416832B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10138025A DE10138025A1 (de) 2001-08-08 2001-08-08 Möbelantrieb zum Verstellen von Teilen eines Möbels relativ zueinander
DE10138025 2001-08-08
PCT/EP2002/008694 WO2003015585A1 (fr) 2001-08-08 2002-08-05 Entrainement de meuble destine a deplacer des elements d'un meuble les uns par rapport aux autres

Publications (3)

Publication Number Publication Date
EP1416832A1 true EP1416832A1 (fr) 2004-05-12
EP1416832B1 EP1416832B1 (fr) 2006-06-21
EP1416832B2 EP1416832B2 (fr) 2010-08-18

Family

ID=7694208

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02772121A Expired - Lifetime EP1416832B2 (fr) 2001-08-08 2002-08-05 Entrainement de meuble destine a deplacer des elements d'un meuble les uns par rapport aux autres

Country Status (7)

Country Link
US (1) US20040169408A1 (fr)
EP (1) EP1416832B2 (fr)
JP (1) JP2004538073A (fr)
CN (1) CN100346731C (fr)
AT (1) ATE330514T1 (fr)
DE (3) DE10138025A1 (fr)
WO (1) WO2003015585A1 (fr)

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DE10157650C1 (de) 2001-11-26 2003-04-24 Cimosys Ltd Elektromotorischer Möbelantrieb zum Verstellen von Teilen eines Möbels relativ zueinander
DE10200169A1 (de) * 2002-01-04 2003-07-17 Cimosys Ag Goldingen Möbelantrieb zum Verstellen von Teilen eines Möbels relativ zueinander
FR2871671A1 (fr) * 2004-06-21 2005-12-23 Le Bed Sas Bloc de positionnement manuel pour structure de couchage a tete et/ou pieds relevables et structure de couchage equipee dudit bloc de positionnement manuel
DE102006017972B4 (de) * 2006-04-13 2018-03-01 Dewertokin Gmbh Nachrüstsatz für ein Hubbett mit Zugmittelverstellung und Hubbett
WO2009000353A1 (fr) * 2007-06-28 2008-12-31 Linrot Holding Ag Dispositif de support déplaçable par un moteur électrique
DE102007041777A1 (de) * 2007-09-04 2009-03-05 Linrot Holding Ag Elektromotorischer Möbelantrieb
DE202008016049U1 (de) * 2008-12-03 2010-04-15 Dewert Antriebs- Und Systemtechnik Gmbh Doppelantrieb für Möbel
DE102012219113A1 (de) * 2011-11-09 2013-05-16 Dewertokin Gmbh Elektromotorischer Linearantrieb, insbesondere zum Verstellen von Liege- und Sitzmöbeln
DE202015101316U1 (de) * 2015-03-13 2016-06-15 Dewertokin Gmbh Elektromotorischer Doppelantrieb
DK3207828T3 (en) * 2016-02-16 2019-01-21 Derwertokin Gmbh Drive for furniture
DE202016100782U1 (de) * 2016-02-16 2017-05-18 Dewertokin Gmbh Möbelantrieb
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Also Published As

Publication number Publication date
CN1564667A (zh) 2005-01-12
DE50207317D1 (de) 2006-08-03
US20040169408A1 (en) 2004-09-02
WO2003015585A1 (fr) 2003-02-27
DE10138025A1 (de) 2003-05-22
CN100346731C (zh) 2007-11-07
JP2004538073A (ja) 2004-12-24
ATE330514T1 (de) 2006-07-15
DE10293669D2 (de) 2004-10-28
EP1416832B1 (fr) 2006-06-21
EP1416832B2 (fr) 2010-08-18

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