JP4964506B2 - Chair - Google Patents
Chair Download PDFInfo
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- JP4964506B2 JP4964506B2 JP2006162631A JP2006162631A JP4964506B2 JP 4964506 B2 JP4964506 B2 JP 4964506B2 JP 2006162631 A JP2006162631 A JP 2006162631A JP 2006162631 A JP2006162631 A JP 2006162631A JP 4964506 B2 JP4964506 B2 JP 4964506B2
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- leg
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- chair
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- 210000001364 upper extremity Anatomy 0.000 claims description 17
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
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Classifications
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- 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
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- 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
- A47C7/002—Chair or stool bases
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- 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
- A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
Description
本発明は、座体を支持する脚体に、背凭れを、後傾可能に枢着してなる椅子に関する。 The present invention relates to a chair in which a backrest is pivotally attached to a leg that supports a seat so as to be tilted backward.
この種の椅子は、例えば特許文献１及び２に記載されており、公知である。
上記特許文献１及び２に記載されている椅子においては、いずれも、後傾可能な背凭れの下端部が、座体の後端部付近において、それと、ほぼ同じ高さで脚体に枢着されているため、枢着部から背凭れの上端までの回転半径は、自ずと制限される。
In each of the chairs described in
このように、枢軸部から背凭れの上端までの回転半径が制限されると、背凭れを後傾させる際の回動角度が大きくなるので、背凭れを大きく後傾させるには、脚体や座体の高さを高くする必要がある。 As described above, when the rotation radius from the pivot portion to the upper end of the backrest is limited, the rotation angle when the backrest is tilted backward is increased. It is necessary to increase the height of the seat.
また、特許文献１に記載されている椅子のように、背凭れの下端を、単に座体の後端部において脚体に枢着しただけでは、背凭れを後傾した際の座体後方への突出寸法が大となり、椅子を設置する際、前後方向の大きな設置スペースが必要となる。
Further, like the chair described in
特許文献２に記載の椅子においては、背凭れを大きく後傾させうるように、これを一旦リンク機構により上昇させてから後傾させるようになっているので、構造が複雑で、部品点数も多いという問題を有している。
In the chair described in
本発明は、上記問題点に鑑みてなされたもので、背凭れを、脚体や座体の高さを高くすることなく、しかも小さな回動角度で大きく後傾させうるとともに、後傾時の後方への突出寸法も小さくしうるようにした椅子を提供することを目的としている。 The present invention has been made in view of the above problems, and the backrest can be greatly tilted backward at a small rotation angle without increasing the height of the leg body and the seat body, and at the time of backward tilting. An object of the present invention is to provide a chair capable of reducing the rearward projecting dimension.
本発明によると、上記課題は、次のようにして解決される。
（１）座体を支持する脚体に、前面に背凭れを取付けた背凭れ支持フレームを、前記座体の後方において起立する位置から後傾しうるように枢着してなる椅子において、前記背凭れ支持フレームは、左右１対の上下方向を向く側部フレームと、この両側部フレームの下端に連設された、左右幅が両側部フレームの左右幅よりも小さい左右１対の前方を向く前向腕部とを備え、前記脚体は、前下方に傾斜する前脚と後下方に傾斜する後脚を有する側面視山形状の左右１対の側脚と、この両側脚の頂部付近同士を連結する左右方向を向く連結部材とを備えるものとし、前記背凭れ支持フレームにおける前記左右１対の前向腕部の前端部を、両前向腕部が前記左右の後脚間において後傾しうるように、前記連結部材の中央部上面に設けた座体を支持する支基の両側面に枢着する。
According to the present invention, the above problem is solved as follows.
A leg for supporting the (1) seat support, a backrest support frame fitted with a backrest in the front, in the chair formed by pivotally mounted so as to be able to rearward tilting from a position standing at the rear of the seat body, wherein The back support frame is a pair of left and right side frames facing the up and down direction and a pair of left and right frames that are connected to the lower ends of the both side frames and whose left and right widths are smaller than the left and right widths of the both side frames. a front direction arm portion, wherein the leg has a side Miyama a pair of left and right shape side legs having a rear leg which is inclined rearward and downward and front leg inclined forward downward, the vicinity of each other top of the sides leg shall and a connecting member facing the lateral direction for coupling, tilted backward the front end, the inter-leg after the left and right both anterograde arms of the direction arm portion before the right-and-left in the backrest support frame as may support the seat body provided at the center portion upper surface of the coupling member It is pivotally mounted on both sides of that support base.
（２）上記(１)項において、左右1対の前向腕部の前端部を、側脚の山形をなす頂部とほぼ等高をなす位置において、支基の両側面に枢着する。 (2) In the above item (1), the front end portion of the forward curved arm portions of the right and left pair, at a position forming a substantially contour and top forming a chevron side legs are pivotally mounted on both sides of the support base.
（３）上記(１)または(２)項において、左右の側脚における後脚を、平面視ハの字状をなすように外側方に拡開する。 ( 3 ) In the above item (1) or (2) , the rear legs of the left and right side legs are expanded outward so as to form a square shape in plan view.
（４）上記(１)〜(３)項のいずれかにおいて、左右の側脚における前脚も、平面視ハの字状をなすように外側方に拡開する。 ( 4 ) In any one of the above items (1) to ( 3 ), the front legs of the left and right side legs are also expanded outward so as to form a square shape in plan view.
（５）上記(１)〜(４)項のいずれかにおいて、側脚を、後脚の前後寸法が前脚よりも長寸をなす側面視への字状とする。 ( 5 ) In any one of the above items (1) to ( 4 ), the side legs are shaped like a side view in which the front and rear dimensions of the rear legs are longer than the front legs.
上記(１)項に記載の発明によれば、背凭れ支持フレームの下端部を、左右の側脚間において後傾しうるように、座体の下方の脚体に枢着したことにより、枢着部から背凭れの上端までの回転半径が大となり、小さな回動角度で、背凭れを大きく後傾させることができ、かつ後傾時の後方への突出寸法も小さくなる。
また、脚体や座体の高さを高くすることなく、大きく後傾させうるので、安楽姿勢で着座しうる低座高型の椅子を提供することができる。
さらに、座体の荷重が、実質的に左右の側脚の頂部付近、すなわち両側脚間の中央部において前脚と後脚との連設部付近によりバランスよく受支されるので、着座時の椅子の安定性がよくなる。
According to the invention described in (1) above, the lower end of the backrest support frame is pivotally attached to the lower leg of the seat so that it can tilt backward between the left and right side legs. The radius of rotation from the landing part to the upper end of the backrest is large, the backrest can be largely tilted backward at a small rotation angle, and the rearward projecting dimension at the time of backward tilting is also small.
In addition, since the leg and the seat can be tilted rearward without increasing the height of the leg or the seat, it is possible to provide a low seat height type chair that can be seated in an easy posture.
In addition, the seat load is supported in a balanced manner by the front leg and the rear leg in the vicinity of the top of the left and right side legs, that is, in the middle between both legs. The stability of is improved.
上記(２)項に記載の発明によれば、背凭れの回転半径がより大きくなるとともに、枢着位置も高くなるので、背凭れを、より小さな回動角度で大きく後傾させることができる。 According to the invention described in the above item (2) , since the turning radius of the backrest becomes larger and the pivoting position becomes higher, the backrest can be largely inclined backward with a smaller rotation angle.
上記(３)項に記載の発明によれば、背凭れを後傾させたときの安定性が向上する。 According to the invention described in the above item (3), the stability when the backrest is tilted backward is improved.
上記(４)項に記載の発明によれば、椅子全体の安定性が向上するとともに、着座者の下肢部が前脚に当たる恐れが小さくなる。 According to the invention described in the above item (4) , the stability of the entire chair is improved, and the possibility that the lower leg portion of the seated person will hit the front leg is reduced.
上記(５)項に記載の発明によれば、背凭れを後傾させたときの安定性がより高まる。
また、側脚が側面視への字状をなしているので、脚体や座体の高さがより低い低座高型の椅子を提供しうる。
According to the invention described in the above item (5), the stability when the backrest is tilted backward is further increased.
In addition, since the side legs are shaped like a side view, it is possible to provide a low-sitting-type chair in which the height of the legs and seats is lower.
以下、本発明の実施形態を、図面に基づいて説明する。
図１は、本発明の椅子の前方斜視図、図２は正面図、図３は側面図、図４は、同じく背凭れを後傾させたときの側面図、図５は後面図で、この椅子は、脚体(１)と、それにより支持された座体(２)と、同じく、脚体(１)に前下端が枢着された背凭れ支持フレーム(３)と、その前面に取付けられた、メッシュ状の背凭れ板(４)とクッション体(５)とからなる背凭れ(６)と、背凭れ支持フレーム(３)の下端部に取付けられた側面視ほぼ菱形枠状の左右１対の肘掛け(７)とを備えている。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 is a front perspective view of the chair of the present invention, FIG. 2 is a front view, FIG. 3 is a side view, FIG. 4 is a side view when the backrest is also tilted backward, and FIG. 5 is a rear view. The chair is attached to the front of the leg (1), the seat supported by it (2), the back support frame (3) pivotally attached to the leg (1), and the front. The backrest (6) composed of the mesh-like backrest plate (4) and the cushion body (5), and the left and right sides of a substantially rhombus frame shape attached to the lower end of the backrest support frame (3) A pair of armrests (7).
脚体(２)は、図６の斜視図及び図７の平面図にも示すように、前端にキャスタ(８)を有する前下がり傾斜の前脚(9a)と、これよりも前後寸法が長寸とされた、後端にキャスタ(８)を有する後下がり傾斜の後脚(9b)とからなる側面視への字形をなす左右１対の側脚(９)(９)と、両側脚(９)における頂部付近の対向面に取付けられた正面視上向コ字状をなす連結部材(10)とからなっている。 As shown in the perspective view of FIG. 6 and the plan view of FIG. 7, the leg body (2) has a front leg (9 a) having a caster (8) at the front end and a front lower slope (9 a), and the front and rear dimensions are longer than this. A pair of left and right side legs (9), (9), which are formed in a side view, comprising rear legs (9b) having rear casters (8) having casters (8) at the rear end, and both legs (9 ) And a connecting member (10) having a U-shape in a front view attached to an opposing surface near the top.
なお、後脚(9b)を前脚(9a)よりも長寸としたのは、背凭れ(６)を後傾した際の椅子の安定性を確保するためである。 The reason why the rear leg (9b) is longer than the front leg (9a) is to ensure the stability of the chair when the backrest (6) is tilted backward.
左右の側脚(９)の前脚(9a)と後脚(9b)は、それぞれ、平面視前向ハの字形、および後向ハの字形に外開きに拡開するように、それらの頂部を中心として、外側方に折曲げてあり、脚体(１)の安定性を高めている。 The front legs (9a) and rear legs (9b) of the left and right side legs (9) have their apexes so as to expand outwardly into a front-shaped C-shape and a rear-shaped C-shape in plan view, respectively. As the center, it is bent outwards to enhance the stability of the leg (1).
各側脚(９)の頂部には、左右方向を向く短軸部(11)が一体的に連設され、また後脚(9b)の前端部の内側面には、取付片(12)が下向きに突設されている（図３参照）。 A short shaft portion (11) facing in the left-right direction is integrally connected to the top of each side leg (9), and a mounting piece (12) is attached to the inner surface of the front end portion of the rear leg (9b). It protrudes downward (see FIG. 3).
上記左右の短軸部(11)の内側端面には、連結部材(10)における左右１対の斜前上方を向く起立片(10a)(10a)の上端が、また取付片(12)の内側面には、同じく連結部材(10)における起立片(10a)よりも若干後脚(9b)側に位置する横杆(10b)の両側面が、それぞれ外側方より挿入したボルト(13)により螺着されている。 On the inner end face of the left and right short shaft portions (11), the upper ends of the pair of left and right standing pieces (10a) and (10a) facing the upper front of the connecting member (10) Also on the side surfaces, both side surfaces of the side heel (10b) located slightly on the rear leg (9b) side of the standing piece (10a) of the connecting member (10) are screwed by bolts (13) inserted from the outside respectively. It is worn.
短軸部(11)に挿入したボルト(13)の頭部は、短軸部(11)の側面の凹孔に止着された円形キャップ(14)（図５においては図示略）により覆われている。 The head of the bolt (13) inserted into the short shaft portion (11) is covered with a circular cap (14) (not shown in FIG. 5) fixed in the concave hole on the side surface of the short shaft portion (11). ing.
連結部材(10)における横杆(10b)の左右方向の中央部に形成された上向膨出部(10c)の上面には、座体(２)支持用の支基(15)の後端が、支基(15)の前端部が横杆(10b)の前方に突出するようにして、ボルト(16)により固着されている。 The rear end of the support base (15) for supporting the seat (2) is formed on the upper surface of the upward bulging portion (10c) formed at the center portion in the left-right direction of the horizontal rod (10b) in the connecting member (10). However, the front end portion of the support base (15) is fixed by the bolt (16) such that the front end portion protrudes forward of the reed (10b).
支基(15)の上端の高さは、連結部材(10)を上向コ字状として、その起立片(10a)の上端を側脚(９)の頂部に、かつ横杆(10b)を後脚(9b)の取付片(12)にそれぞれ固着したことにより、側脚(９)の頂端より若干上方に突出する程度とされている。 The height of the upper end of the support base (15) is such that the connecting member (10) has an upward U-shape, the upper end of the upright piece (10a) is at the top of the side leg (9), and the horizontal arm (10b) By sticking to the attachment pieces (12) of the rear legs (9b), the upper legs of the side legs (9) protrude slightly upward.
上記背凭れ支持フレーム(３)は、図３及び図５に示すように、座体(２)の後方において起立するとともに、下端に、斜め後ろ上方に傾斜する前向腕部(17a)が連設された左右１対の側部フレーム(17)(17)と、両側部フレーム(17)の上端同士を結合している後向凸円弧状の上部フレーム(18)とからなり、全体形は、前後面視ほぼ縦長下向コ字状をなしている。 As shown in FIGS. 3 and 5, the backrest support frame (3) stands behind the seat (2), and has a forward arm (17 a) inclined obliquely rearward and upward at the lower end. It consists of a pair of left and right side frames (17) and (17) and a rearward convex arc-shaped upper frame (18) that joins the upper ends of both side frames (17). The front-rear side view has a substantially vertically downward U-shape.
図４及び図５に示すように、左右の側部フレーム(17)の下端に連設された前向腕部(17a)同士の左右寸法は、左右１対の側脚(９)における後脚(9b)(9b)間の離間寸法よりも小とされ、背凭れ支持フレーム(３)を後傾させた際、前向腕部(17a)が左右の後脚(9b)間において、それと干渉しないで傾動しうるようにしてある。 As shown in FIGS. 4 and 5, the left and right dimensions of the front arm portions (17a) connected to the lower ends of the left and right side frames (17) are the rear legs of the pair of left and right side legs (9). (9b) When the back support frame (3) is tilted backward, the forward arm (17a) interferes with the left and right rear legs (9b) when the backrest support frame (3) is tilted backward. It can be tilted without.
図６に示すように、左右の前向腕部(17a)の前端には、側脚(９)の頂部の短軸部(11)とほぼ同軸をなす内向折曲部(17b)が連設され、この内向折曲部(17b)は、支基(15)内に設けられた、例えば公知のゴムトーションユニット等のリクライニング機構における左右方向を向くトーション軸（いずれも図示略）に、回動可能かつ常時側面視反時計回りに付勢された状態で連結されている。これにより、背凭れ支持フレーム(３)及びそれに取付けられた背凭れ(６)は、着座者が背凭れ(６)を後方に押動すると、支基(15)を中心として後傾するようになる（図４参照）。 As shown in FIG. 6, inwardly bent portions (17b) that are substantially coaxial with the short shaft portion (11) at the top of the side leg (9) are connected to the front ends of the left and right forward arms (17a). The inwardly bent portion (17b) is rotated around a torsion shaft (not shown) facing in the left-right direction in a reclining mechanism such as a known rubber torsion unit provided in the support base (15). It is connected in a state where it is urged in a counterclockwise direction when possible and always in a side view. As a result, the backrest support frame (3) and the backrest (6) attached to the backrest support frame (3) are inclined backward about the support base (15) when the seated person pushes the backrest (6) backward. (See FIG. 4).
支基(15)の前端に連設された、左右両側端部が支基(15)の外側方に突出する軸状支持部(19)の外側端面には、図３及び図６に示すように、上下方向を向く左右１対の座支持リンク(20)(20)の下端における内向折曲部の内側面が、左右方向を向く枢軸(21)により、前後に回動可能に枢着されている。 As shown in FIG. 3 and FIG. 6, on the outer end surface of the shaft-like support portion (19) that is connected to the front end of the support base (15) and whose left and right end portions protrude outward from the support base (15). In addition, the inner surface of the inwardly bent portion at the lower end of the pair of left and right seat support links (20) (20) facing in the vertical direction is pivotally attached to the front and rear by the pivot (21) facing in the left and right direction. ing.
また、背凭れ支持フレーム(３)における左右の前向腕部(17a)の前端部上面には、座支持片(22)(22)が上向に突設されている。(23)は、直方体状の肘掛け取付部で、座支持片(22)と連続するようにして、前向腕部(17a)の上面に突設されている。 Further, seat support pieces (22) and (22) project upward from the upper surfaces of the front end portions of the left and right forward arms (17a) of the back support frame (3). Reference numeral (23) denotes a rectangular parallelepiped armrest mounting portion that protrudes from the upper surface of the forward arm portion (17a) so as to be continuous with the seat support piece (22).
上記左右の座支持リンク(20)の上端には、座体(２)の下面に取付けられた座枠(24)における前端部の左右両側部が、左右方向を向く枢軸(25)により回動可能に枢着され、また、上記左右の座支持片(22)の上端には、座枠(24)の後部側の左右両側部が、左右方向を向く枢軸(26)により回動可能に枢着されている（図３参照）。 At the upper end of the left and right seat support links (20), the left and right sides of the front end of the seat frame (24) attached to the lower surface of the seat (2) are pivoted by the pivot (25) facing in the left-right direction. Further, the left and right sides of the rear side of the seat frame (24) are pivoted to the upper ends of the left and right seat support pieces (22) so as to be pivotable by a pivot (26) facing in the left-right direction. (See FIG. 3).
これにより、座体(２)の前部は、左右１対の座支持リンク(20)を介して、実質的に脚体(１)と一体をなす支基(15)の前端の左右両側部により支持されるとともに、座体(２)の後部寄りの中間部は、左右１対の座支持片(22)を介して、背凭れ支持フレーム(３)の左右の前向腕部(17a)により支持されている。 As a result, the front part of the seat body (2) is connected to the left and right side parts of the front end of the support base (15) substantially integrated with the leg body (1) via a pair of left and right seat support links (20). The middle part near the rear part of the seat body (2) is supported by the left and right forward arms (17a) of the back support frame (3) via a pair of left and right seat support pieces (22). Is supported by
従って、図４に示すように、背凭れ支持フレーム(３)を背凭れ(６)と共に後傾させると、それと連動して座体(２)も後下方に傾動させられるようになる。なお、座体(２)の取付後においては、両側脚(９)における前脚(9a)の後部と後脚(9b)の前部が、座体(２)の両側端よりも内方に位置し、脚体(１)の両側脚(９)が外側方に大きく突出しないようにしてある（図２参照）。 Therefore, as shown in FIG. 4, when the backrest support frame (3) is tilted backward together with the backrest (6), the seat body (2) is also tilted rearward and downward in conjunction therewith. After the seat (2) is attached, the rear part of the front leg (9a) and the front part of the rear leg (9b) of the both side legs (9) are positioned inward from the both side edges of the seat body (2). In addition, both side legs (9) of the leg body (1) are not protruded greatly outward (see FIG. 2).
以上説明したように、上記実施形態の椅子においては、背凭れ支持フレーム(３)の前下端が、脚体(１)の両側脚(９)(９)間の中央上部、すなわち座体(２)の前方寄りの下方において、脚体(１)と実質的に一体をなす支基(15)に回動可能に枢着されているので、枢着部から背凭れ支持フレーム(３)及び背凭れ(６)の上端までの回転半径が大となり、小さな回動角度で背凭れ(６)を大きく後傾させることができるとともに、後傾時の後方への突出寸法も小さくなる。 As described above, in the chair of the above embodiment, the front lower end of the backrest support frame (3) is the upper center between the legs (9) and (9) of the leg (1), that is, the seat (2 ) Is pivotally mounted on a support base (15) that is substantially integral with the leg (1), so that the backrest support frame (3) and the back support frame (3) and back The radius of rotation up to the upper end of the bow (6) becomes large, the backrest (6) can be tilted backwards with a small rotation angle, and the rearward projecting dimension when tilting backward is also reduced.
また、脚体(１)及び座体(２)の高さを高くすることなく、大きく後傾させうるので、安楽姿勢で着座しうる低座高型の椅子を提供することができる。
しかも、上記実施形態では、背凭れ支持フレーム(３)及び座体(２)の前部を、脚体(１)における正面視上向コ字形をなす連結部材(10)の横杆(10a)上に設けた、側脚(９)の頂部とほぼ同じ高さの支基(15)に枢着しているので、座高はより低くなり、より安楽した姿勢で着座することができる。
Further, since the legs (1) and the seat (2) can be tilted rearward without increasing their height, a low seat height type chair that can be seated in an easy posture can be provided.
Moreover, in the above-described embodiment, the front portions of the backrest support frame (3) and the seat body (2) are placed on the recumbent portion (10a) of the connecting member (10) having a U-shape in the front view in the leg body (1). Since it is pivotally attached to the support base (15) which is provided at the same height as the top of the side leg (9), the seating height is lower and it is possible to sit in a more comfortable posture.
背凭れ支持フレーム(３)の前向腕部(17a)の前後寸法が比較的長く、その回転半径も大きいだけでなく、座体(２)の下方において斜後ろ上方に傾斜しており、かつその前下端を、への字形をなす側脚(９)の頂部とほぼ等高をなす位置に枢着してあるので、前向腕部(17a)の回動可能角度を大きくすることができ、その後端が床面と干渉する恐れはない。 The front and rear dimensions (17a) of the back support frame (3) are relatively long and not only have a large radius of rotation, but also slant upward and diagonally below the seat (2), and The front lower end is pivotally attached to a position that is almost level with the top of the side leg (9) that forms a U-shape, so that the pivotable angle of the forward arm (17a) can be increased. There is no danger that the rear end will interfere with the floor.
脚体(１)の両側脚(９)における前脚(9a)と後脚(9b)は、平面視ハ字形をなすように外側方に拡開し、かつ後脚(9b)の前後寸法を前脚(9a)よりも長寸としているため、椅子の安定性は高く、かつ背凭れ(６)を後傾したときの安定性にも優れる。
また、左右の前脚(9a)が外側方に拡開しているので、着座者の下肢部が前脚(9a)に当たる恐れは小さい。
The front legs (9a) and rear legs (9b) of both legs (9) of the leg body (1) are widened outward so as to form a C shape in plan view, and the front and rear dimensions of the rear legs (9b) are the front legs. Since it is longer than (9a), the chair has high stability and is excellent in stability when the backrest (6) is tilted backward.
Further, since the left and right front legs (9a) are expanded outward, the possibility that the lower limbs of the seated person will hit the front legs (9a) is small.
なお、上記実施形態においては、背凭れ支持フレーム(３)の前向腕部(17a)を、支基(15)に、枢着しているが、左右の側脚(９)の頂部、すなわち短軸部(11)の内側面に、適宜のリクライニング機構を介して枢着することもある。 In the above embodiment, the forward arm (17a) of the back support frame (3) is pivotally attached to the support base (15), but the tops of the left and right side legs (9), that is, It may be pivotally attached to the inner surface of the short shaft portion (11) via an appropriate reclining mechanism.
また、上記実施形態では、背凭れ支持フレーム(３)の傾動と連動して、座体(２)も後傾するものとしたが、座体(２)は、単に支基(15)を含む脚体(１)の上部適所に固定的に設けてもよい。 In the above embodiment, the seat body (2) also tilts backward in conjunction with the tilting of the backrest support frame (3). However, the seat body (2) simply includes the support base (15). It may be fixedly provided at an appropriate position in the upper part of the leg (1).
(１)脚体
(２)座体
(３)背凭れ支持フレーム
(４)背凭れ板
(５)クッション体
(６)背凭れ
(７)肘掛け
(８)キャスタ
(９)側脚
(9a)前脚
(9b)後脚
(10)連結部材
(10a)起立片
(10b)横杆
(10c)上向膨出部
(11)短軸部
(12)取付片
(13)ボルト
(14)キャップ
(15)支基
(16)ボルト
(17)側部フレーム
(17a)前向腕部
(17b)内向折曲部
(18)上部フレーム
(19)軸状支持部
(20)座支持リンク
(21)枢軸
(22)座支持片
(23)肘掛け取付部
(24)座枠
(25)枢軸
(26)枢軸
(1) Leg
(2) Seat
(3) Back support frame
(4) Backrest board
(5) Cushion body
(6) Backrest
(7) Armrest
(8) Casters
(9) Side legs
(9a) Front leg
(9b) Rear legs
(10) Connecting member
(10a) Standing piece
(10b) Yokohama
(10c) Upward bulge
(11) Short shaft
(12) Mounting piece
(13) Bolt
(14) Cap
(15) Support base
(16) Bolt
(17) Side frame
(17a) Forward arm
(17b) Inward bending
(18) Upper frame
(19) Shaft support
(20) Seat support link
(21) Axis
(22) Seat support piece
(23) Armrest mounting
(24) Seat frame
(25) Axis
(26) Axis
Claims (5)
前記背凭れ支持フレームは、左右１対の上下方向を向く側部フレームと、この両側部フレームの下端に連設された、左右幅が両側部フレームの左右幅よりも小さい左右１対の前方を向く前向腕部とを備え、前記脚体は、前下方に傾斜する前脚と後下方に傾斜する後脚を有する側面視山形状の左右１対の側脚と、この両側脚の頂部付近同士を連結する左右方向を向く連結部材とを備えるものとし、前記背凭れ支持フレームにおける前記左右１対の前向腕部の前端部を、両前向腕部が前記左右の後脚間において後傾しうるように、前記連結部材の中央部上面に設けた座体を支持する支基の両側面に枢着したことを特徴とする椅子。 In a chair formed by pivoting a backrest supporting frame with a backrest attached to the front surface to a leg that supports the seat so as to be able to tilt backward from a position standing up behind the seat.
The backrest support frame includes a pair of left and right side frames facing the vertical direction, and a pair of left and right fronts that are connected to the lower ends of both side frames and whose left and right widths are smaller than the left and right widths of both side frames. and a forward curved arms facing the leg, the front and side legs of the pair of left and right side Miyama shape having a rear leg which is inclined rearward and downward and front leg sloping downward, near the top of the sides legs together shall and a connecting member facing the lateral direction for connecting the front ends of the front direction arm portion of the right-and-left in the backrest support frame, after in both anterograde arms are inter-leg the right and left rear A chair characterized by being pivotally attached to both side surfaces of a support base for supporting a seat provided on the upper surface of the central portion of the connecting member so as to be inclined.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006162631A JP4964506B2 (en) | 2006-06-12 | 2006-06-12 | Chair |
| CA2655276A CA2655276C (en) | 2006-06-12 | 2007-06-11 | Chair having support base |
| CN2007800300540A CN101500455B (en) | 2006-06-12 | 2007-06-11 | Chair |
| EP07745028.6A EP2033541A4 (en) | 2006-06-12 | 2007-06-11 | Chair |
| US12/304,523 US20090195043A1 (en) | 2006-06-12 | 2007-06-11 | Chair |
| PCT/JP2007/061739 WO2007145170A1 (en) | 2006-06-12 | 2007-06-11 | Chair |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006162632A JP4926551B2 (en) | 2006-06-12 | 2006-06-12 | Chair |
| JP2006162631A JP4964506B2 (en) | 2006-06-12 | 2006-06-12 | Chair |
| JP2006163383A JP4964507B2 (en) | 2006-06-13 | 2006-06-13 | Chair |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012000355A Division JP5497075B2 (en) | 2012-01-05 | 2012-01-05 | Chair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2007330337A JP2007330337A (en) | 2007-12-27 |
| JP4964506B2 true JP4964506B2 (en) | 2012-07-04 |
Family
ID=38831684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006162631A Active JP4964506B2 (en) | 2006-06-12 | 2006-06-12 | Chair |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20090195043A1 (en) |
| EP (1) | EP2033541A4 (en) |
| JP (1) | JP4964506B2 (en) |
| CN (1) | CN101500455B (en) |
| CA (1) | CA2655276C (en) |
| WO (1) | WO2007145170A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6494088B2 (en) * | 2015-01-16 | 2019-04-03 | 株式会社オカムラ | Reaction force mechanism and chair using the same |
| US11672343B2 (en) | 2021-07-14 | 2023-06-13 | Anthro Form, Llc | 4-star base for a chair |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1117835B (en) * | 1956-07-23 | 1961-11-23 | William H Reinholz | Ground anchor for children's exercise chairs |
| US4303219A (en) * | 1979-12-14 | 1981-12-01 | Carrick Virgil P | Swivel-rocker base |
| JPS59114051U (en) * | 1983-01-24 | 1984-08-01 | 株式会社岡村製作所 | A chair where the seat and backrest tilt in conjunction with each other. |
| IT1161498B (en) * | 1983-07-12 | 1987-03-18 | Castelli Spa | CHAIR |
| US5967609A (en) * | 1996-11-18 | 1999-10-19 | Hwe, Inc. | Reclining chair with guide rail system |
| JPH10276853A (en) * | 1997-04-02 | 1998-10-20 | Chuo Katan Kogyo Kk | Stacking chair |
| DE19754829A1 (en) * | 1997-12-10 | 1999-07-08 | Wilkhahn Wilkening & Hahne | Seat with backrest |
| US5868468A (en) * | 1998-04-24 | 1999-02-09 | Wang; Chin-Chen | Chair with adjustable inclination |
| US6030037A (en) * | 1998-05-15 | 2000-02-29 | Steelcase Inc. | Horizontally nestable chair |
| US6412869B1 (en) * | 1999-05-27 | 2002-07-02 | Steelcase Development Corporation | Nestable synchrotilt chair |
| JP2002282077A (en) | 2001-03-23 | 2002-10-02 | Okamura Corp | Chair |
| US6609755B2 (en) * | 2001-06-15 | 2003-08-26 | Hon Technology Inc. | Ergonomic chair |
| US6595584B1 (en) * | 2002-01-16 | 2003-07-22 | John W. Caldwell | Seating for individuals and for groups of individuals with various degrees of accommodation and distraction |
| JP4154934B2 (en) | 2002-06-17 | 2008-09-24 | 松下電工株式会社 | Massage chair |
| JP2004033449A (en) | 2002-07-03 | 2004-02-05 | Kokuyo Co Ltd | Lever attaching structure for chair |
| JP2004057572A (en) * | 2002-07-30 | 2004-02-26 | Itoki Crebio Corp | Chair that can be connected in a row |
| USD512846S1 (en) * | 2003-05-19 | 2005-12-20 | Hni Technologies Inc. | Mobile guest chair with arms |
| JP4589621B2 (en) | 2003-12-19 | 2010-12-01 | 株式会社岡村製作所 | Chair |
| USD543040S1 (en) * | 2005-11-10 | 2007-05-22 | Okamura Corporation | Chair |
| USD542549S1 (en) * | 2005-11-10 | 2007-05-15 | Okamura Corporation | Chair |
| USD543042S1 (en) * | 2005-11-10 | 2007-05-22 | Okamura Corporation | Chair |
-
2006
- 2006-06-12 JP JP2006162631A patent/JP4964506B2/en active Active
-
2007
- 2007-06-11 WO PCT/JP2007/061739 patent/WO2007145170A1/en active Search and Examination
- 2007-06-11 EP EP07745028.6A patent/EP2033541A4/en not_active Withdrawn
- 2007-06-11 CA CA2655276A patent/CA2655276C/en not_active Expired - Fee Related
- 2007-06-11 US US12/304,523 patent/US20090195043A1/en not_active Abandoned
- 2007-06-11 CN CN2007800300540A patent/CN101500455B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2655276A1 (en) | 2007-12-21 |
| WO2007145170A1 (en) | 2007-12-21 |
| CN101500455B (en) | 2013-05-08 |
| EP2033541A1 (en) | 2009-03-11 |
| CN101500455A (en) | 2009-08-05 |
| CA2655276C (en) | 2013-01-22 |
| EP2033541A4 (en) | 2014-01-22 |
| US20090195043A1 (en) | 2009-08-06 |
| JP2007330337A (en) | 2007-12-27 |
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