WO2000015081B1 - Chair - Google Patents

Chair

Info

Publication number
WO2000015081B1
WO2000015081B1 PCT/US1999/019071 US9919071W WO0015081B1 WO 2000015081 B1 WO2000015081 B1 WO 2000015081B1 US 9919071 W US9919071 W US 9919071W WO 0015081 B1 WO0015081 B1 WO 0015081B1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
frame
back support
support
chair according
Prior art date
Application number
PCT/US1999/019071
Other languages
French (fr)
Other versions
WO2000015081A1 (en
Inventor
Jonsson Bertil
Original Assignee
Jonber Inc
Jonsson Bertil
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 Jonber Inc, Jonsson Bertil filed Critical Jonber Inc
Priority to EP99942388A priority Critical patent/EP1123023A4/en
Priority to AU55779/99A priority patent/AU5577999A/en
Priority to US09/414,919 priority patent/US6203107B1/en
Publication of WO2000015081A1 publication Critical patent/WO2000015081A1/en
Publication of WO2000015081B1 publication Critical patent/WO2000015081B1/en

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
    • A47C1/023—Reclining or easy chairs having independently-adjustable supporting parts the parts being horizontally-adjustable seats ; Expandable seats or the like, e.g. seats with horizontally adjustable parts
    • 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
    • A47C7/02—Seat parts
    • A47C7/024—Seat parts with double seats
    • 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
    • A47C7/02—Seat parts
    • A47C7/14—Seat parts of adjustable shape; elastically mounted ; adaptable to a user contour or ergonomic seating positions
    • 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

Abstract

A chair that includes a frame (1) and a seat (3) disposed there above, and an upwardly protruding back support (2) that is located in an area behind the seat. A front part of the back support has a lumbar support device (8, 8') that is disposed a certain level above the seat to support the lumbar spine and/or pelvis rim of the user. The seat (3) is movable relative to the frame (1) between the forward starting position, on the one hand, in which the seat is remote from the back support and is the normal position when the seat is not used by a sitting person and a rear end position, on the other hand, has a lumbar support in which the seat has moved closer to the back support. More particularly, it is closer for the purpose of bringing the pelvis of the person sitting on the set to partially shift in against or below the lumbar support device (8, 8').

Claims

AMENDED CLAIMS[received by the International Bureau on 23 March 2000 (23.03.00); original claims 1-10 amended (4 pages)]
1. A chair that comprises a frame (l) , a seat (3) disposed above the frame and an upwardly protruding back support disposed in an area behind the seat, a lumbar support device (8, 8') that is positioned a certain level above the seat to support the lumbar spine and/or pelvis rim of the person, wherein the seat (3) and the frame (1) are movable relative to one another between first and second positions, characterized therein that, the frame includes shifting means (27, 21, 23) for holding the seat in the first position in which the seat is remote from the back support and which is normally the position of the seat when nobody sits on the seat; to activate a relative movement towards the second position in which the seat and the back support are closer together, more particularly with the purpose of bringing the pelvis of the person sitting on the seat to partially shift and be disposed below the mentioned lumbar support device (8,
8' ) ; and to automatically return the seat to the first position when the sitting person leaves the chair,
2. The chair according to claim 1, characterized therein that the means includes a motor (27) .
3. The chair according to claim 2, characterized therein that the driving of the motor (27) is guided by at least two sensors (30, 31) so that the first sensor (30) , after it has determined that a person has sat down on the seat, starts the motor to move the seat and the back support (2) in a direction towards one another, and the second sensor (31) that terminates the driving αf the motor after it has determined that the pelvis of the sitting person has reached the area of the lumbar support device (8') and applied a desired pressure against the lumbar support device.
4. The chair according to claim 1, characterized therein that the mentioned means includes a sliding plane (21) that is attached to the frame (1) , the plane slopes in a backward/downward direction relative to the horizontal plane and
20 along a unit (20) that is attached to the seat (3) so that the mentioned sliding plane has the purpose of providing an automatic movement of the seat in the direction towards the back support by using the user's own body weight, the means also includes a spring (23) that operates between the seat and the frame with the purpose of automatically distancing the seat from the back support as soon as the sitting person leaves the seat.
5. The chair according to claim 1 characterized therein that at least two length wise separated links (38, 39) operate between the seat (3) and the frame (1) , each link is directly or indirectly pivotally attached to the seat and the frame, respectively, and have the purpose of providing automatic movement of the seat in the direction towards the back support by using the user's own body weight, and that a front end of a gas spring (40) is directly or indirectly pivotally attached to the seat and a rear end of the gas spring is directly or indirectly pivotally attached to the frame so that the gas spring has the purpose of automatically distancing the seat and the back support from one another as soon as the sitting person leaves the seat.
6. The chair according to claim 1, characterized therein that the chair includes means (24, 27, 40) for delaying the initialization of the movement towards one another of the seat and the back support, a certain time period after the user has sat down, and to provide a controlled velocity during this relative movement.
7. The chair according to claim l, characterized therein that the seat (3) comprises an upper, soft cushion (9) and a lower support disc (10) that is support by the frame
21 includes a front and rear part characterized therein that the front disc part (11) is attached to and supported by the frame (1) , so that the rear disc part (12) protrudes outwardly as a free end from the front part without being in direct contact with the back support (2) and discloses a cushion part that has a rear seating area (15) that is, at least when the chair is used, recessed relative to the upper side of the cushion, the rear seating area is transformed to the higher situated front seating area (16) via a protruding transition area (17) that forms a knob against which the user's tuber ischii may bear against with a view to preventing a forward sliding movement of the user's thigh bone along the seat and/or backward rotation of the pelvis, and the rear disc part (12) is at least partially lowerable from an upper starting position to enable a variable adjustment of the level of the back edge of the rear seating area not only relative to the front portion of the cushion but also relative to the back support (2) and its lumbar support device (8) .
8. The chair according to claim 7 characterized therein that the rear disc part is at least partially elastically yielding to be able to downwardly bend from the starting position.
9. The chair according to claim 7, characterized therein that the protruding transition area (17) between the front and rear seating areas (16, 15) of the cushion (9) are disposed in an area above or behind a zone that separates the front and rear parts (11, 12) of the support panel.
10. The chair according to claim 7, characterized therein that an upper side of the cushion (9) is at least partially covered with a cover (18) , such as plush fabric, that provides a resistance against sliding in a forward direction
22 along the plush fabric but not in the opposite direction.
23
PCT/US1999/019071 1998-09-10 1999-08-20 Chair WO2000015081A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP99942388A EP1123023A4 (en) 1998-09-10 1999-08-20 Chair
AU55779/99A AU5577999A (en) 1998-09-10 1999-08-20 Chair
US09/414,919 US6203107B1 (en) 1998-09-10 1999-10-09 Chair

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9803082A SE512805C2 (en) 1998-09-10 1998-09-10 Chair
SE9803081-0 1998-09-10
SE9803081A SE512936C2 (en) 1998-09-10 1998-09-10 Chair

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US09/414,919 Continuation-In-Part US6203107B1 (en) 1998-09-10 1999-10-09 Chair

Publications (2)

Publication Number Publication Date
WO2000015081A1 WO2000015081A1 (en) 2000-03-23
WO2000015081B1 true WO2000015081B1 (en) 2001-05-25

Family

ID=41075511

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/US1999/019111 WO2000015080A1 (en) 1998-09-10 1999-08-20 Chair
PCT/US1999/019071 WO2000015081A1 (en) 1998-09-10 1999-08-20 Chair

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/US1999/019111 WO2000015080A1 (en) 1998-09-10 1999-08-20 Chair

Country Status (5)

Country Link
US (2) US6203107B1 (en)
EP (1) EP1123023A4 (en)
AU (2) AU5577999A (en)
SE (2) SE512805C2 (en)
WO (2) WO2000015080A1 (en)

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US6634711B2 (en) * 2001-06-15 2003-10-21 Hon Technology Inc. Adjustable chair seat with locking mechanism
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US7625046B2 (en) * 2002-03-29 2009-12-01 Garrex Llc Task chair
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US8876138B2 (en) * 2012-12-13 2014-11-04 Francis Wilde Height adjustable wheelchair seat
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EP3005905B1 (en) * 2013-06-07 2018-10-31 Okamura Corporation Chair
JP6539803B2 (en) * 2014-03-18 2019-07-03 慎一 牧瀬 Hip press extension
WO2015161281A1 (en) 2014-04-17 2015-10-22 Hni Technologies Inc. Chair and chair control assemblies, systems, and methods
PL3429432T3 (en) * 2016-03-14 2020-06-01 Burkhard Schmitz Chair
JP6711134B2 (en) * 2016-05-24 2020-06-17 トヨタ紡織株式会社 Headrest
WO2018214118A1 (en) * 2017-05-25 2018-11-29 Zhejiang Feili Technology Co., Ltd. Motorized furniture headrest assembly for seating systems
FR3082108B1 (en) * 2018-06-06 2020-06-05 Herve Thomas PHYSIOLOGICAL SITTING DEVICE
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Also Published As

Publication number Publication date
SE512936C2 (en) 2000-06-05
WO2000015080A1 (en) 2000-03-23
AU5578599A (en) 2000-04-03
SE9803081L (en) 2000-03-11
US6203107B1 (en) 2001-03-20
AU5577999A (en) 2000-04-03
EP1123023A4 (en) 2003-06-04
SE9803081D0 (en) 1998-09-10
SE9803082L (en) 2000-03-11
SE512805C2 (en) 2000-05-15
WO2000015081A1 (en) 2000-03-23
SE9803082D0 (en) 1998-09-10
US6193313B1 (en) 2001-02-27
EP1123023A1 (en) 2001-08-16

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