WO2009147869A1 - 背もたれの傾動可能な椅子 - Google Patents
背もたれの傾動可能な椅子 Download PDFInfo
- Publication number
- WO2009147869A1 WO2009147869A1 PCT/JP2009/002563 JP2009002563W WO2009147869A1 WO 2009147869 A1 WO2009147869 A1 WO 2009147869A1 JP 2009002563 W JP2009002563 W JP 2009002563W WO 2009147869 A1 WO2009147869 A1 WO 2009147869A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- backrest
- chair
- tilting
- backward
- cradle
- Prior art date
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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
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03255—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest with a central column, e.g. rocking office chairs
-
- 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
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
- A47C1/03266—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with adjustable elasticity
-
- 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
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
- A47C1/03272—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs
-
- 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
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
- A47C1/03272—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs
- A47C1/03274—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs of torsion type
-
- 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
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
- A47C1/03277—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf springs
-
- 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
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
- A47C1/03277—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf springs
- A47C1/03279—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf springs of torsion type
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/02—Rocking chairs
- A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame
- A47C3/026—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame with central column, e.g. rocking office chairs; Tilting chairs
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
- A47C31/12—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons
- A47C31/126—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons for chairs
Definitions
- the present invention relates to a chair, and particularly to a chair that can tilt a backrest.
- the action member shortens the length of the other arm of the spring as the rearward inclination occurs. Since it acts on the spring at the position, the amount of spring displacement relative to the amount of change in load can be reduced, and the amount of spring displacement (reaction force) relative to the amount of tilting is stabilized throughout the tilting range. A feeling of tilting without instability could be secured especially at the end of tilting.
- ABS active balance seating
- the conventional chair is not configured to tilt the backrest naturally from the above-described series of actions, and the seated person uses the back muscles to tilt the backrest with the rib cage.
- the seating surface and the seat on the backrest are not particularly configured to support the above-described series of actions, the force when the floor is kicked by the thumb ball is not always transmitted well to the pelvis. For this reason, as described above, from the viewpoint of the movement of the center of gravity, the instability is eliminated as compared with the conventional chair, but there is a problem that dorsiflexion reflection occurs when tilting backward and places a burden on the body.
- the present invention provides a chair that applies the concept of ABS to general chairs such as office chairs, and reduces the load on the body such as the head and neck in backward tilt and return tilt. Let it be an issue.
- a chair in order to solve the above problems, includes a cradle fixed to the upper part of the leg support, a seat part provided on the upper part of the cradle, and a backrest that is erected on the rear side of the seat part. And a pivot mechanism for tilting the backrest, wherein the pivot mechanism is pivotally supported at one end on a cradle and fixed at the other end to the backrest.
- a second elastic means having an urging force in a pulling direction in front of the seat portion, and the first elastic means and the second elastic means linearly increase the reverse reaction force when the backrest tilts backward, and in return tilting Change the reaction force so that it is in phase with the backward tilt.
- the characteristic is obtained by adjusting the.
- the back reaction force of the backrest at the time of backward tilting is linearly increased by the complementary action of the first elastic means and the second elastic means.
- the back reaction force increases, it acts gently as the rearward tilt angle increases, and in turnback tilt, it acts from the initial movement of the head and neck preceding the center of gravity movement to show a trajectory similar to the rearward tilt.
- the first elastic means is provided inside the cradle, loosely fits the shaft of the rotating arm to the winding portion, locks one end to the rotating arm, and resists the other end from tilting behind the backrest. It is good also as a torsion coil spring fixed so that reaction force adjustment was possible to the direction.
- the second elastic means is provided inside the cradle, hooks one end of the hook to a fixed hook provided in the forward direction of the seat, and hooks the other end to the rotating arm. It is good also as a tension spring which latches on the connected connection part and a stretching arm produces an elongation reaction force with the movement of the said connection part interlock
- the tilting operation according to the present invention can be realized even if the leaf spring is used alone, for example, by adjusting the spring characteristics, but there is a problem that the durability is lowered and the cost is high. Therefore, in consideration of durability and cost, the above combination of the torsion coil spring and the tension spring is used.
- the seating surface of the seat portion is structured to cause the sciatic nodule portion to sink deeply to support the front part of the sciatic nodule by causing the movement of the pressure center of the pelvis on the seating surface in a wide range before and after the tilting. May be.
- the seat of the backrest may be one that gradually releases the thorax rearward and supports the pelvis from the rear during the backward tilting.
- the seating surface and the seat of the backrest serve to support the physical burden of the seated person when tilting.
- the chair according to the present invention reduces the load on the head and neck in the backward tilt and the return tilt by realizing the tilt by the center of gravity movement triggered by the force generated by the thumb ball. In addition, there is an effect that a comfortable tilt feeling can be provided.
- reference numeral 1 denotes a leg support of a chair according to the present invention, and a lower portion of the leg support 1 is fitted and inserted into a leg 2, and the leg 2 is inserted into a floor surface from an insertion opening (not shown). And a plurality of legs extending radially in the horizontal direction.
- the leg portion 2 is in contact with the floor surface via a caster 3 provided at each tip portion.
- the upper part of the leg support 1 is provided with a gas spring or the like (not shown), and is provided with a fitting portion 4 that can move the leg support 1 to be extendable and rotatable.
- a seat frame 7 is installed on the upper portion of the fitting portion 4 via a cradle 5, and the seat frame 7 extends and rotates with the extension or rotation of the leg column 1 by the action of the fitting portion 4. .
- the cradle 5 and the seat frame 7 are connected by a convex connecting portion 6 provided on the upper part of the cradle 5.
- a seating member 8 is provided on the seat frame 7 and a backrest 9 is provided on the rear end. Further, one end of a rotating arm 10 for tilting the backrest 9 is fixedly attached to the lower end of the backrest 9. The other end of the pivot arm 10 is pivotally attached to the rear side of the cradle 5. When the seated person leans against the backrest 9 with its weight, the pivot arm 10 pivots downward, and the backrest 9 tilts backward, that is, reclines. In order to suppress rattling during rearward tilting, a fixed shaft 11 erected substantially in parallel with the backrest and a rotating shaft 10 at one end of the fixed shaft 11 at the rear side of the seat frame 7.
- An auxiliary rotating arm 12 that is rotatably attached to the other end and is fixedly attached to the backrest 9 is installed substantially parallel to the rotating arm 10. Therefore, a link-like mechanism is formed in which the auxiliary turning arm 12 is rotated in conjunction with the rotation of the auxiliary turning arm 12 when the turning arm 10 is rotated in order to tilt the backrest 9.
- the pivot arm 10, the fixed shaft 11, and the auxiliary pivot arm 12 are all formed as a pair (not shown) on the left and right sides of the chair according to the present invention.
- the cradle 5 has a base portion 51 in which each component for controlling the tilting of the backrest 9 according to the present invention is provided.
- the base 51 is provided with a rotating shaft 52 that pivotally supports the left and right rotating arms 10.
- a torsion coil spring 53 is used to exert a reaction force in the direction of tilting back with respect to the movement of the pivot arm 10.
- the torsion coil spring 53 has the rotating shaft 52 loosely fitted to the winding portion, and one end of both end portions extending in a direction intersecting the tangential line from the winding portion has a locking portion 101 attached to the rotating arm 10. The other end is pressed by the reaction force adjusting unit 54 via the bracket 56.
- a guide portion 55 is provided above the reaction force adjustment portion 54.
- an internal base portion 57 provided with a lock mechanism that does not rotate the rotating arm 10 beyond a predetermined range in conjunction with the movement of the rotating shaft 52 is provided.
- a latch pin is provided in front of the base portion 51 (that is, in the forward direction of the seat frame 7) and the internal base portion 57, and hooks at both ends are hooked on both the latch pins.
- a tension spring 58 is also installed.
- the torsion coil spring 57 and the tension spring 58 may be provided one by one, or a pair of them may be provided on the left and right with the bracket 56 interposed therebetween.
- the torsion coil spring 53 and the tension spring 58 are used as the elastic members.
- any other elastic members may be used as long as they have the same effect as long as they have the same effect. Also good.
- FIG. 2 is a partially enlarged view of the cradle 5, (a) shows a steady state of the rotating arm 9, that is, a state before the backrest is tilted backward, and (b) is a state tilted backward.
- FIG. 2 is a partially enlarged view of the cradle 5, (a) shows a steady state of the rotating arm 9, that is, a state before the backrest is tilted backward, and (b) is a state tilted backward.
- 53a is a long end portion of the torsion coil spring 53
- 53b is a short end portion.
- the long end portion 53 a and the short end portion 53 b extend from the winding portion of the torsion coil spring 53 in a direction intersecting tangentially.
- the short end portion 53b is fixed in a state of being pressed by the reaction force adjusting portion 54 at a predetermined adjustment position via the bracket 56.
- the tension spring 58 as described with reference to FIG. 1, the latch pin 51 a is provided in front of the base portion 51, and the latch pin 57 a is provided on the internal base portion 57.
- FIG. 3 is a partially enlarged view for explaining the reaction force adjusting mechanism.
- the torsion coil spring 53 is provided only on the left side of the bracket 56, but actually, the torsion coil spring 53 may also be provided on the right side of the bracket 56.
- the reaction force adjusting unit 54 is composed of a pressing piece 54a and a pressed piece 54b, each formed with an inclined surface having the same inclination angle, and both inclined surfaces are opposed to each other.
- An adjustment screw 54c is screwed into the pressing piece 54a.
- a guide portion 55 is provided on the upper surface opposite to the inclined surface of the pressing piece 54a.
- the lower surface opposite to the inclined surface of the pressed piece 54 b is in contact with the pressing projection 56 b of the bracket 56, and the pressing projection 56 b is in contact with the short end 53 b of the torsion coil spring 53.
- the guide portion 55 is installed in parallel with the longitudinal direction of the winding portion of the adjustment screw 54 c and the torsion coil spring 53.
- the pressing piece 54 a moves along the guide portion 55.
- the inclined surface of the pressing piece 54a and the inclined surface of the pressed piece 54b slide, and the pressed piece 54b is pressed downward according to the inclination of the inclined surface of the pressing piece 54a, or Move up and down to return to the original position.
- the short end 53b is twisted via the pressing projection 56b and the fulcrum position angle of the torsion coil spring 53 changes, and the biasing force is adjusted as a reaction force by the torsion coil spring 53. can do.
- the optimum reaction force of the backrest 9 due to the difference in the weight of the seated person can be adjusted.
- the present invention is not limited to this configuration, and the weight of the seated person is detected and optimized.
- a known configuration that automatically adjusts the reaction force may be used.
- FIG. 4 shows an embodiment of the seating member 8.
- a plurality of elongated slits 81a extending in the direction perpendicular to the depth direction are provided at regular intervals toward the depth direction of the seating surface of the seating member 8a.
- the front slit (left side in the figure) on the front side of the seating surface 81a is formed with a plurality of comb-like cuts 82a in a direction perpendicular to the slit 81a.
- FIG. 4 (a-2) is a side sectional view of the seating member 8a of (a-1).
- a curve indicated by a two-dot chain line on the upper surface of the seating member 8a indicates a deflection f when the seated person sits down.
- the lowermost end of the flexure f becomes the pressure center of the pelvis, but by adopting such a configuration, it is possible to sink the bone nodule deeper than a seating member not provided with the slit 81a.
- the center of pressure is moved in a wide range before and after, and the front part of the sciatic tuberosity can be supported by the notch 82a, so-called sliding sitting is prevented during backward tilting, and the floor is kicked by the ball It is possible to successfully transmit the force of time to the pelvis.
- FIG. 4B-1 shows the seating member 8b using the net material 82b as the material in the frame 81b.
- the bending f at the time of sitting shown in the side sectional view of FIG. 4 (b-2) passes, and the effect is the same as that provided with the slits of FIGS. 4 (a-1) and (a-2).
- the material 82b can respond more flexibly to body pressure distribution and movement during sitting.
- the members of the seating surface have been described.
- the seat of the backrest is also gradually moved backward in the rear tilt. It is preferable that the pelvis is supported from the rear side. Therefore, for example, an olefin elastomer (polypropylene + crosslinked EPDM 20%) is suitable as a material for the backrest sheet.
- FIG. 5 is a view showing a change in the tilting of the backrest (relationship between the tilt angle and the back reaction force) in the case of the torsion coil spring alone and in the case of the combination of the torsion coil spring and the tension spring.
- the solid line in FIG. 5 shows the change in the tilt of the combination of the torsion coil spring and the tension spring
- the broken line shows the change in the tilt of the torsion coil spring alone.
- a solid line a1 and a broken line b1 are changes during backward tilting, and a2 and b2 are changes during backward tilting.
- the reverse reaction force increases as the inclination angle increases in the rearward tilt as compared to the case of the torsion coil spring alone, so the backward tilt speed is gradually suppressed.
- a gentle backward tilting operation can be realized, and in the return tilting, it is possible to smoothly switch back from the rear tilting, and it acts as if to reproduce a motion like a rocking chair. Therefore, the combination of the torsion coil spring and the tension spring has an effect of reducing the load on the body such as the head and neck during tilting.
Abstract
Description
2 脚部
3 キャスター
4 嵌合部
5 受台
6 連結部
7 座フレーム
8 着座用部材
9 背もたれ
10 回動アーム
Claims (5)
- 脚支柱の上部に固定された受台と、この受台の上部に設けられた座部と、この座部の後方に立設された背もたれとを有し、この背もたれを傾動させるために、回動機構を備えた椅子であって、
前記回動機構は、一端を前記受台に回動可能に軸支し、他端を前記背もたれに固定し、背もたれを傾動させる回動アームと、背もたれを後傾動させる回動アームの動きに対して戻し方向に付勢力を有する第1弾性手段と、背もたれを後傾動させる回動アームの動きに対して前記座部の前方向と水平な引張り方向の付勢力を有する第2弾性手段とを有し、
前記第1弾性手段及び第2弾性手段は、背もたれの後傾動で線形的に背反力が大きくなるとともに、戻り傾動における背反力の変化が前記後傾動と同相となるように弾性特性を調整させたものであることを特徴とする椅子。 - 前記第1弾性手段は、前記受台内部に設けられ、前記回動アームの軸を巻回部に遊嵌し、一端を回動アームに係止し、他端を背もたれの後傾動に抗する付勢力が生じるように固定したねじりコイルばねであることを特徴とする請求項1記載の椅子。
- 前記第2弾性手段は、前記受台内部に設けられ、一端のフックを前記受台の前記座部前方側に設けられた固定掛止部に掛止し、他端のフックを回動アームの動きに連動するように、前記軸に取り付けられた連動部に前記引張り方向の付勢力が生じるように掛止された引張りばねであることを特徴とする請求項1または請求項2記載の椅子。
- 前記座部の着座面は、前記傾動時に、着座面上で骨盤の圧力中心の移動を前後の広い範囲で生じさせ、坐骨結節前方部を支えるように、坐骨結節部を深く沈みこませる構造であることを特徴とする請求項1から請求項3までのいずれかに記載の椅子。
- 前記背もたれのシートは、前記後傾動時に、徐々に胸郭を後方に解放し、骨盤を後方から支えるものであることを特徴とする請求項1から請求項4までのいずれかに記載の椅子。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010515787A JP5598855B2 (ja) | 2008-06-05 | 2009-06-05 | 背もたれの傾動可能な椅子 |
CN2009801208517A CN102056512B (zh) | 2008-06-05 | 2009-06-05 | 靠背可倾斜的座椅 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008148540 | 2008-06-05 | ||
JP2008-148540 | 2008-06-05 |
Publications (1)
Publication Number | Publication Date |
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WO2009147869A1 true WO2009147869A1 (ja) | 2009-12-10 |
Family
ID=41397949
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/002563 WO2009147869A1 (ja) | 2008-06-05 | 2009-06-05 | 背もたれの傾動可能な椅子 |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP5598855B2 (ja) |
KR (1) | KR20110022040A (ja) |
CN (1) | CN102056512B (ja) |
TW (1) | TW201016170A (ja) |
WO (1) | WO2009147869A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150164225A1 (en) * | 2012-03-08 | 2015-06-18 | Walter Knoll Ag & Co. Kg | Functional Chair |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IN2014CN03186A (ja) * | 2011-10-04 | 2015-07-03 | Formway Furniture Ltd | |
CN103799741B (zh) * | 2012-11-01 | 2017-06-20 | 奥弗·巴查 | 座椅靠背,座椅装置及方法 |
IT201600071468A1 (it) * | 2016-07-08 | 2018-01-08 | Co Fe Mo Ind S R L | Meccanismo di oscillazione per sedie |
TWI808904B (zh) * | 2022-10-04 | 2023-07-11 | 宣禹實業股份有限公司 | 椅具之座背連動裝置 |
Citations (4)
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JPH03121013A (ja) * | 1989-09-16 | 1991-05-23 | Rolf Voelkle | 傾斜可変のシート部を備えた椅子 |
JPH07289383A (ja) * | 1994-04-27 | 1995-11-07 | Tokai Kinzoku Kogyo Kk | 椅子の傾動装置 |
JPH08289825A (ja) * | 1995-04-25 | 1996-11-05 | Uchida Yoko Co Ltd | 椅子の背部傾動装置 |
JP2002142899A (ja) * | 2000-11-06 | 2002-05-21 | Okamura Corp | 椅子における操作レバー構造 |
Family Cites Families (8)
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US4796950A (en) * | 1987-02-09 | 1989-01-10 | Haworth, Inc. | Tilt mechanism, particularly for knee-tilt chair |
DE4135948C2 (de) * | 1991-10-31 | 1993-12-23 | Rolf Voelkle | Stuhl, insbesondere Bürodrehstuhl |
US6086153A (en) * | 1997-10-24 | 2000-07-11 | Steelcase Inc. | Chair with reclineable back and adjustable energy mechanism |
GB0100388D0 (en) * | 2001-01-06 | 2001-02-14 | Unit Press Ltd | Chairs |
JP4848099B2 (ja) * | 2001-07-18 | 2011-12-28 | タカノ株式会社 | 椅子 |
JP4064679B2 (ja) * | 2002-02-05 | 2008-03-19 | コクヨ株式会社 | 椅子 |
DE102005020237B3 (de) * | 2005-04-28 | 2006-08-17 | Bock 1 Gmbh & Co. Kg | Synchronmechanik |
CN1775144A (zh) * | 2005-12-09 | 2006-05-24 | 黄星浩 | 座椅靠背调节装置 |
-
2009
- 2009-06-05 WO PCT/JP2009/002563 patent/WO2009147869A1/ja active Application Filing
- 2009-06-05 TW TW098118830A patent/TW201016170A/zh unknown
- 2009-06-05 KR KR1020117000245A patent/KR20110022040A/ko not_active Application Discontinuation
- 2009-06-05 CN CN2009801208517A patent/CN102056512B/zh not_active Expired - Fee Related
- 2009-06-05 JP JP2010515787A patent/JP5598855B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03121013A (ja) * | 1989-09-16 | 1991-05-23 | Rolf Voelkle | 傾斜可変のシート部を備えた椅子 |
JPH07289383A (ja) * | 1994-04-27 | 1995-11-07 | Tokai Kinzoku Kogyo Kk | 椅子の傾動装置 |
JPH08289825A (ja) * | 1995-04-25 | 1996-11-05 | Uchida Yoko Co Ltd | 椅子の背部傾動装置 |
JP2002142899A (ja) * | 2000-11-06 | 2002-05-21 | Okamura Corp | 椅子における操作レバー構造 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US20150164225A1 (en) * | 2012-03-08 | 2015-06-18 | Walter Knoll Ag & Co. Kg | Functional Chair |
US9833074B2 (en) * | 2012-03-08 | 2017-12-05 | Walter Knoll Ag & Co. Kg | Functional chair |
Also Published As
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JP5598855B2 (ja) | 2014-10-01 |
JPWO2009147869A1 (ja) | 2011-10-27 |
KR20110022040A (ko) | 2011-03-04 |
CN102056512A (zh) | 2011-05-11 |
TW201016170A (en) | 2010-05-01 |
CN102056512B (zh) | 2013-06-12 |
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