EP0662795B1 - Rückenlehne eines sitzes mit einer verstellvorrichtung für ein elastisches wölbelement zur verstellung der wölbung der rückenlehne - Google Patents

Rückenlehne eines sitzes mit einer verstellvorrichtung für ein elastisches wölbelement zur verstellung der wölbung der rückenlehne Download PDF

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Publication number
EP0662795B1
EP0662795B1 EP93919319A EP93919319A EP0662795B1 EP 0662795 B1 EP0662795 B1 EP 0662795B1 EP 93919319 A EP93919319 A EP 93919319A EP 93919319 A EP93919319 A EP 93919319A EP 0662795 B1 EP0662795 B1 EP 0662795B1
Authority
EP
European Patent Office
Prior art keywords
back rest
resilient
pelvic support
curving element
rest according
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.)
Expired - Lifetime
Application number
EP93919319A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0662795A1 (de
Inventor
Knud Klingler
Paul Rozaitis
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.)
AMEU-MANAGEMENT CORP
AMEU Management Corp
Original Assignee
AMEU-MANAGEMENT CORP
AMEU Management Corp
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=6469163&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0662795(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by AMEU-MANAGEMENT CORP, AMEU Management Corp filed Critical AMEU-MANAGEMENT CORP
Publication of EP0662795A1 publication Critical patent/EP0662795A1/de
Application granted granted Critical
Publication of EP0662795B1 publication Critical patent/EP0662795B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/46—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/46—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • A47C7/462—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means
    • A47C7/465—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means by pulling an elastic cable

Definitions

  • the invention relates to a backrest of a seat with an adjusting device for an elastic arch element arranged on a frame for adjusting the curvature of the backrest.
  • Such adjustable backrests are widely known, for. B. from US-A-5 050 930. All of them are based on the principle of giving the backrest a curvature adapted to the person seated on the seat, so that the person receives ergonomically correct support in the area of the spine.
  • Various systems are known with which the curvature can be adjusted from flat to high, but there are also systems in which the position of the curvature apex, which is set to any height from high to flat, can be adjusted upwards or downwards in the longitudinal extent of the seat.
  • Backrests with adjustable curvature are also known as lumbar supports.
  • a seat with a backrest which has a plurality of plates arranged flexibly connected to one another over the entire height of the backrest by means of straps, each of which is individually arranged manually or automatically by adjusting mechanisms individually assigned to them are, so that the backrest can be given almost any profile.
  • This backrest is extremely complicated and very expensive to manufacture and requires a lot of effort to adjust.
  • the object of the invention is to improve an adjustable backrest of a seat of the type mentioned in such a way that sufficient support for the back, in particular the pelvis, is also guaranteed directly below the arch region of the backrest, which according to a further object of the invention also has a simple structure has and is therefore inexpensive to manufacture and which is also easily and without special effort adaptable to different users.
  • a backrest as shown in FIGS. 1 and 2, has a frame 1 with two cross struts 2 and a guide 3.
  • the guide 3 consists of two rods 4 arranged parallel to one another.
  • An elastic arch element 5 is arranged on the rods 4.
  • the arch element 5 consists of two elastically bendable strips 6 in a parallel arrangement, which are connected to one another by spaced-apart transverse strips 7.
  • the strips 6, 7 can consist of metal or any material having any elastic properties - also of a plastic with or without stiffeners.
  • the arch element 5 can have a reinforced strip 11.
  • the reinforcement strips 11 preferably have bushes 12 which are arranged to be slidable on the bars 4.
  • the bushings 12 are preferably connected in an articulated manner to the reinforcement plate 10 or the reinforcement strip 11.
  • the exemplary embodiment has a tensioning device 13 with a handwheel 14, which belong to a known and therefore not further explained adjustment device for adjusting the curvature.
  • a plate 16 which serves as a pelvic support 17, is fastened with its upper end — in the exemplary embodiment on the reinforcement strip 11.
  • the plate 16 can also be attached to the longitudinal and / or transverse strips 6, 7 and flexible to almost rigid be and also consist of a latticework, wherein wings bent forward (not shown) to form a shell in cross section can be provided on both sides. The wings serve as lateral support for the back.
  • the plate 16 can be fixed, e.g. B. by welding, gluing or the like. Or exchangeably and / or adjustably fastened, for example by screw connections which are inserted through holes in the strips 6 and / or 7 and the plate 16, these holes also being designed as slots 18 can, whereby an adaptation to different backrest sizes and / or a change in the stiffness characteristic of the plate 16 is possible.
  • a central or a plurality of spring elements 19 arranged symmetrically along the lower edge can be provided, which connect to the frame 1, if necessary via intermediate elements such. B. enable the cross struts 2.
  • the resilience / expansion - depending on the selected characteristic and the desired properties - of the plate 16 and thus also the pelvic support 17 can be influenced by these spring elements 19.
  • the arch element 5 consists of a flexible plate 20, which has parallel cuts on both lateral edges to the cross struts 2, which limit lateral angled or curved wings 22 for lateral support.
  • the plate 20 is also slidably arranged on the guide 3 at the upper end, as in the exemplary embodiment according to FIGS. 1 and 2.
  • an extension 23 serving as a pelvic support 17.
  • the plate 20 and the extension 23 consist of a single part, which allows a particularly simple and therefore inexpensive production.
  • a link 24 is articulated, which is connected at its other end to the lower cross strut 2 of the frame 1 in an articulated manner.
  • an air bellows (not shown) can also be provided.
  • the extension 23 can also be produced separately from the flexible plate 20, which makes it possible to carry out various adaptations to the spring characteristics and different sizes of the backrests in the case of series production of all other parts of the backrest.
  • the connection between the flexible plate 20 and a separate extension 23 can be done in any known manner, for example by rivet or screw connections but also by any other connections, for. B. done by plug and clamp connections, which may also allow an exchange of an extension 23 for another, which may be desirable in the event of a change of ownership of a car in the driver's seat.
  • the free end of the extension 23 can be supported by a spring element (not shown).
  • FIG. 5 shows a preferred exemplary embodiment of an arch element 5 with integrated pelvic support 17, which consists of a single flexible plastic part and can be produced, for example, by punching out a plate or by compression molding.
  • the actual curvature part has incisions 21 on both sides, which delimit wings 22.
  • the wings 22 can be angled by cold or hot working in an additional operation or at the same time in a manufacturing process by means of compression molding.
  • recesses 25 are provided through which the arch properties of the arch element 5 can be influenced.
  • the appendix 26 has a closed edge 29 which is firmly connected to the arch element 5 via bridges 30 in the exemplary embodiment. Openings 31 are made in the edge 29 and in the upper edge of the arch element 5, in which openings the cable pull or the sleeve of a Bowden cable arrangement (not shown) for adjusting the curvature of the arch element 5 can be hung. If the distance between the two openings 31 is shortened by the Bowden cable arrangement, the arching element 5 bulges and the projections 28 each connected to the arching element 5 with only one edge emerge with their free ends from the flatness of the appendix 26 and thus form the pelvic support 17 .
  • material reinforcements can also be provided (not shown).
  • the pelvic support connected to the respective arch element is automatically brought into the correct position, regardless of whether the curvature is set very strongly or very flat. This ensures a simple design on the one hand and on the other hand optimal support - in particular the pelvis - and not only optimal support for the lordosis through the adjustable backrest.
  • the arch element 5 and thus also the pelvic support 17 can be arranged on the rods 4 so as to be adjustable in height by means of various known mechanisms.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Seats For Vehicles (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
EP93919319A 1992-09-29 1993-09-10 Rückenlehne eines sitzes mit einer verstellvorrichtung für ein elastisches wölbelement zur verstellung der wölbung der rückenlehne Expired - Lifetime EP0662795B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4232679A DE4232679C1 (de) 1992-09-29 1992-09-29 Rückenlehne eines Sitzes mit einer Verstellvorrichtung für ein elastisches Wölbelement zur Verstellung der Wölbung der Rückenlehne
DE4232679 1992-09-29
PCT/EP1993/002457 WO1994007393A1 (de) 1992-09-29 1993-09-10 Rückenlehne eines sitzes mit einer verstellvorrichtung für ein elastisches wölbelement zur verstellung der wölbung der rückenlehne

Publications (2)

Publication Number Publication Date
EP0662795A1 EP0662795A1 (de) 1995-07-19
EP0662795B1 true EP0662795B1 (de) 1996-12-11

Family

ID=6469163

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93919319A Expired - Lifetime EP0662795B1 (de) 1992-09-29 1993-09-10 Rückenlehne eines sitzes mit einer verstellvorrichtung für ein elastisches wölbelement zur verstellung der wölbung der rückenlehne

Country Status (11)

Country Link
US (1) US5651583A (zh)
EP (1) EP0662795B1 (zh)
JP (1) JP3556217B2 (zh)
KR (1) KR100338858B1 (zh)
CN (1) CN1049571C (zh)
AU (1) AU684472B2 (zh)
BR (1) BR9307126A (zh)
CA (1) CA2144860A1 (zh)
DE (2) DE4232679C1 (zh)
WO (1) WO1994007393A1 (zh)
ZA (1) ZA937180B (zh)

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US6619739B2 (en) 2001-03-01 2003-09-16 L & P Property Management Company Universal ergonomic support with self-contained actuator
US6623076B2 (en) 1993-06-17 2003-09-23 Schukra-Gerätebau AG Adjustment apparatus for a resiliently flexible support element of a back rest
US6652028B2 (en) 2001-11-02 2003-11-25 L & P Property Management Apparatus and method for lumbar support with variable apex
US6652029B2 (en) 2001-12-20 2003-11-25 L & P Property Management Company Unitized back plate and lumbar support
US6666511B2 (en) 1989-08-04 2003-12-23 Schukra Geratebau Ag Arching mechanism and method of use
US6676214B2 (en) 2001-11-16 2004-01-13 L & P Property Management Company Method and apparatus for lumbar support with integrated actuator housing
US6758522B2 (en) 2001-03-29 2004-07-06 L&P Property Management Company Apparatus and method for varying coefficients of friction in a variable apex back support
US6779844B2 (en) 2001-12-14 2004-08-24 L&P Propety Maqnagement Company Arching lumbar support with weight distribution surface
US7690726B2 (en) 2005-01-12 2010-04-06 L&P Swiss Holding Company Coupling unit and adjusting mechanism using the coupling unit
US7775595B2 (en) 2004-02-06 2010-08-17 Schukra Of North America Drive mechanism
US7841661B2 (en) 2005-01-12 2010-11-30 L&P Swiss Holding Company Lumbar support assembly and corresponding seat structure
US7984948B2 (en) 2004-07-30 2011-07-26 Schukra Of North America, Ltd. Modular contour support apparatus
US7984949B2 (en) 2007-04-24 2011-07-26 Schukra Of North America Lumbar and bolster support for second row seat
US7997650B2 (en) 2008-02-22 2011-08-16 Schukra Of North America Constant pressure retreating lumbar system
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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6666511B2 (en) 1989-08-04 2003-12-23 Schukra Geratebau Ag Arching mechanism and method of use
US6623076B2 (en) 1993-06-17 2003-09-23 Schukra-Gerätebau AG Adjustment apparatus for a resiliently flexible support element of a back rest
US6824214B2 (en) 2001-03-01 2004-11-30 L & P Property Management Company Universal ergonomic support with self-contained actuator
US6619739B2 (en) 2001-03-01 2003-09-16 L & P Property Management Company Universal ergonomic support with self-contained actuator
US6758522B2 (en) 2001-03-29 2004-07-06 L&P Property Management Company Apparatus and method for varying coefficients of friction in a variable apex back support
US6652028B2 (en) 2001-11-02 2003-11-25 L & P Property Management Apparatus and method for lumbar support with variable apex
US6676214B2 (en) 2001-11-16 2004-01-13 L & P Property Management Company Method and apparatus for lumbar support with integrated actuator housing
US6779844B2 (en) 2001-12-14 2004-08-24 L&P Propety Maqnagement Company Arching lumbar support with weight distribution surface
US6652029B2 (en) 2001-12-20 2003-11-25 L & P Property Management Company Unitized back plate and lumbar support
US7775595B2 (en) 2004-02-06 2010-08-17 Schukra Of North America Drive mechanism
US7984948B2 (en) 2004-07-30 2011-07-26 Schukra Of North America, Ltd. Modular contour support apparatus
US8382204B2 (en) 2004-07-30 2013-02-26 Schukra of North America Co. Modular contour support apparatus
US7841661B2 (en) 2005-01-12 2010-11-30 L&P Swiss Holding Company Lumbar support assembly and corresponding seat structure
US7690726B2 (en) 2005-01-12 2010-04-06 L&P Swiss Holding Company Coupling unit and adjusting mechanism using the coupling unit
US8544953B2 (en) 2005-01-12 2013-10-01 L&P Swiss Holding Ag Lumbar support assembly and corresponding seat structure
US7984949B2 (en) 2007-04-24 2011-07-26 Schukra Of North America Lumbar and bolster support for second row seat
US7997650B2 (en) 2008-02-22 2011-08-16 Schukra Of North America Constant pressure retreating lumbar system
CN105431328A (zh) * 2012-10-23 2016-03-23 李尔公司 胸区舒适就坐系统

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CA2144860A1 (en) 1994-04-14
BR9307126A (pt) 1999-03-30
CN1049571C (zh) 2000-02-23
KR950703297A (ko) 1995-09-20
AU684472B2 (en) 1997-12-18
CN1086694A (zh) 1994-05-18
AU4959793A (en) 1994-04-26
DE4232679C1 (de) 1994-02-03
EP0662795A1 (de) 1995-07-19
KR100338858B1 (ko) 2002-11-18
US5651583A (en) 1997-07-29
WO1994007393A1 (de) 1994-04-14
ZA937180B (en) 1995-06-19
DE59304762D1 (de) 1997-01-23
JPH09502363A (ja) 1997-03-11
JP3556217B2 (ja) 2004-08-18

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