CN102176847B - chair - Google Patents

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Publication number
CN102176847B
CN102176847B CN 200980140462 CN200980140462A CN102176847B CN 102176847 B CN102176847 B CN 102176847B CN 200980140462 CN200980140462 CN 200980140462 CN 200980140462 A CN200980140462 A CN 200980140462A CN 102176847 B CN102176847 B CN 102176847B
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CN
China
Prior art keywords
portion
backrest
support rod
backrest support
forward
Prior art date
Application number
CN 200980140462
Other languages
Chinese (zh)
Other versions
CN102176847A (en
Inventor
益永浩
藤田寿人
Original Assignee
株式会社冈村制作所
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
Priority to JP2008267410A priority Critical patent/JP5378747B2/en
Priority to JP2008-267410 priority
Priority to JP2009-042050 priority
Priority to JP2009042050A priority patent/JP5543117B2/en
Application filed by 株式会社冈村制作所 filed Critical 株式会社冈村制作所
Priority to PCT/JP2009/066329 priority patent/WO2010044331A1/en
Publication of CN102176847A publication Critical patent/CN102176847A/en
Application granted granted Critical
Publication of CN102176847B publication Critical patent/CN102176847B/en

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/36Support for the head or the back
    • A47C7/40Support for the head or the back for the back
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C1/00Chairs adapted for special purposes
    • A47C1/02Reclining or easy chairs
    • A47C1/031Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03255Reclining 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
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C1/00Chairs adapted for special purposes
    • A47C1/02Reclining or easy chairs
    • A47C1/031Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03261Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C1/00Chairs adapted for special purposes
    • A47C1/02Reclining or easy chairs
    • A47C1/031Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03261Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A47C1/03272Reclining 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
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C1/00Chairs adapted for special purposes
    • A47C1/02Reclining or easy chairs
    • A47C1/031Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03294Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers

Abstract

本发明提供一种椅子,在椅子旋转时等情况下,能可靠地防止因靠背支承杆抵接于其他物品而导致物品或靠背支承杆本身受损,并且部件数量少、结构简单且容易组装。 The present invention provides a chair, in a case where the rotary chairs can be reliably prevented due to the backrest support rod abuts against the other article or cause damage to the article itself backrest support rod, and a small number of parts, simple in structure and easy to assemble. 支座(5)由椅腿(3)支承,并且座(7)由支座(5)支承,靠背支承杆(9)侧视呈大体L形,其朝向上方的直立部(9a)和朝向前方的朝前部(9b)通过弯曲部(9c)彼此连接设置在一起,靠背支承杆(9)的朝前部(9b)的前部安装在支座(5)上,并且由直立部(9a)支承靠背(6),所述椅子由保护盖(11)至少覆盖靠背支承杆(9)的从弯曲部(9c)后表面到下表面的部分。 Support (5) (3) supported by the leg, and is supported by the seat support (5) (7), the backrest support rod (9) in a generally L-shaped side view, upward toward the upright portion (9a) and orientation in front of the forward portion (9b) by a curved portion (9c) is provided connected to each other, the backrest support rod (9) a forward portion (9b) is mounted on a front portion of the support (5), and by the upright portions ( 9a) support a backrest (6), the chair by a protective cap (11) covering at least the backrest support rod (9) of the bent portion of the rear surface portion (9c) from the surface to the next.

Description

椅子技术领域 FIELD chair

[0001] 本发明涉及一种靠背支承杆侧视呈大体L形的椅子。 [0001] The present invention relates to one kind of a chair backrest support rod in a generally L-shaped side view.

背景技术 Background technique

[0002] 以往椅子的靠背支承杆侧视呈大体L形,通过弯曲部将朝向上方的直立部和朝向前方的朝前部相互连接,在椅子旋转时等情况下,为了防止因背杆、即靠背支承杆抵接于其他物品而导致物品或背杆本身受损,利用软质材料制成的盖来覆盖背杆的后表面和外侧面(例如参照专利文献1:日本专利公开公报特开2002-136388号)。 [0002] The conventional side view of the chair backrest support rod in a generally L-shaped, the upright portion interconnecting facing upward and forward toward the front portion by the bent portion, in the case where the chair is rotated. In order to prevent the back pole, i.e., the backrest support rod abuts the other article or cause damage to the article back rod itself, with a cover made of a soft material to cover an outer side surface and a back surface of the rear rod (for example, see Patent Document 1: Japanese Laid-open Patent Publication No. 2002 No. -136 388).

[0003] 此外,利用接合部用盖来覆盖腿框架和背框架的接合部,该接合部用盖使两个覆盖部通过铰接部互相开闭(例如参照专利文献2:日本专利公开公报特开2000-14478号)。 [0003] Further, with the engaging portion engaging with the cap to cover the legs of the frame and the back frame, the cap engaging with the two cover portions to each other by opening and closing the hinge portion (e.g., refer to Patent Document 2: Japanese Laid-Open Patent Publication No. 2000-14478). [0004] 然而,在专利文献I中,当靠背支承杆上的朝前部下表面抵接于低位的地板放置物的上表面棱角时,会造成放置物或背杆本身受损,此外,必须分别在左右一对靠背支承杆上安装盖,会造成部件数量增多且安装作业繁琐。 [0004] However, in Patent Document I, when the upper surface of the forward edges of the backrest support rod abuts against the lower surface of the lower floor placement thereof, or placed back causes the lever itself is damaged, moreover, must be separately in a pair of backrest support rods mounting the cover, and the number of parts can cause an increase in the mounting operation cumbersome.

[0005] 在专利文献2中,盖本身的结构较为复杂,使制造成本增加。 [0005] In 2, the cover structure itself Patent Document complicated, the manufacturing cost is increased.

发明内容 SUMMARY

[0006] 鉴于以往技术中存在的上述问题,本发明的目的在于提供一种椅子,在椅子旋转时等情况下,能可靠地防止因靠背支承杆抵接于其他物品而导致物品或靠背支承杆本身受损,并且部件数量少、结构简单且容易组装。 [0006] In view of the above problems present in the prior art, an object of the present invention is to provide a chair, where the chair is rotated, etc., can be reliably prevented due to the backrest support rod comes in contact with something, or article resulting from the backrest support rod itself is damaged, and the small number of components, a simple and easily assembled structure.

[0007] 此外,本发明的目的还在于提供一种能以简单的结构牢固地连接构成靠背的靠背框架和靠背支承杆的椅子。 [0007] Further, the object of the present invention is to provide one kind of chair back frame are firmly connected to the backrest and the backrest constitutes a simple structure of the support rod.

[0008] 本发明通过下述方式来解决上述课题。 [0008] The present invention is to solve the above problems in the following manner.

[0009] (I) 一种椅子,其包括:椅腿;支座,由所述椅腿支承;座,由所述支座支承;靠背支承杆,侧视基本为L形,所述靠背支承杆包括:朝向上方的直立部、朝向前方的朝前部、以及连接设置所述直立部和所述朝前部的弯曲部,所述朝前部的前部安装在所述支座上;靠背,由所述靠背支承杆的直立部支承;以及保护盖,至少覆盖所述靠背支承杆上的、从弯曲部后表面到下表面的部分。 [0009] (I) A chair comprising: a leg; carrier, supported by the leg; seat, supported by the carrier; backrest support rod, substantially L-shaped side view, said backrest support rod comprising: an upright portion facing upward, toward the front of the forward portion, and a bent portion provided connecting the upright portion and said forward portion, said forward portion of the front portion is mounted on said carrier; backrest , by the upright portion of the backrest support rod support; and a protective cover covering at least the backrest support rod, the bent portion from the rear surface to the lower surface portion.

[0010] 按照所述结构,在椅子旋转时等情况下,能可靠地防止因靠背支承杆抵接于其他物品而导致物品或靠背支承杆本身受损,特别是能防止因靠背支承杆的朝前部下表面抵接于低位的地板放置物的上表面棱角、而导致放置物或靠背支承杆本身受损。 [0010] According to the construction, in a case where the rotary chairs can be reliably prevented due to the backrest support rod abuts against the other article or cause damage to the article itself backrest support rod, in particular, can be prevented by the backrest towards the support rod the front lower surface abuts on the lower floor is placed on the surface of the object edges, resulting in damage to or placed backrest support rod itself.

[0011] (2)在所述第(I)项的基础上,所述保护盖包括缓冲件。 [0011] (2) of said first item (I), based on said protective cover member comprises a buffer.

[0012] 按照所述结构,在椅子旋转时等情况下,能提高靠背支承杆抵接于其他物品时的缓冲作用。 [0012] According to the construction, in the case of the chair rotating isochronous cushioning effect to improve the backrest support rod comes in contact with something at the time of.

[0013] (3)在所述第(I)项的基础上,所述保护盖由软质合成树脂材料或橡胶制成。 [0013] (3) on the basis of the item (I) on the protective cover is made of soft synthetic resin material or rubber.

[0014] 按照所述结构,在椅子旋转时等情况下,能提高靠背支承杆抵接于其他物品时的缓冲作用。 [0014] According to the construction, in the case of the chair rotating isochronous cushioning effect to improve the backrest support rod comes in contact with something at the time of. [0015] (4)在所述第(I)项的基础上,所述直立部包括左右一对直立杆,左右一对所述直立杆从所述弯曲部呈分叉状地向上方延伸,所述朝前部包括左右一对朝前杆,左右一对所述朝前杆从所述弯曲部呈分叉状地向前方延伸,所述保护盖包括弯曲覆盖部、直立覆盖部和朝前覆盖部,所述弯曲覆盖部覆盖所述弯曲部的后表面,所述直立覆盖部连接设置在所述弯曲覆盖部上,并且覆盖各个所述直立杆的后表面,所述朝前覆盖部连接设置在所述弯曲覆盖部上,并且覆盖各个所述朝前杆的下表面。 [0015] (4) On the basis of the item (I) on the upright portion comprises a pair of upright bars, a pair of upwardly extending upright bars to the shape of the curved portion from the bifurcated shape, the forward portion comprises a pair of forward rods, a pair of the forwardly extending bar into a bifurcated forward, the protective cover from the bent portion comprises a curved covering portion, the vertical covering portion and a forward covering portion, the curved covering portion to cover the rear surface of the curved portion, the vertical covering portion of the curved connection provided on the cover portion, and covers the rear surface of each of said upright bars, the forward covering portion provided on the curved cover portion, and covers the lower surface of each pair of forward rods.

[0016] 按照所述结构,无需准备两个靠背支承杆,仅通过一个构件就能稳定地支承靠背,并且也无需准备多个保护盖,仅具有一个构件即可,从而能减少部件数量,使结构简化,并且容易组装。 [0016] According to the construction, without preparing two backrest support rod, the backrest can be stably supported by only one member, and also no need to prepare a plurality of the protective cover, can be only one member, so that the number of parts can be reduced, so that simplify the structure, and easy to assemble.

[0017] 另外,由于保护盖除了弯曲覆盖部以外,还设置有覆盖各直立杆后表面的一对直立覆盖部和覆盖各朝前杆下表面的一对朝前覆盖部,所以容易对保护盖进行定位。 [0017] Further, since the protective cover covering the bent portions in addition, further provided with a cover the rear surface of each of the pair of upright bars upstanding cover portions covering each of the one pair of lower rod forward portion toward the front surface of the cover, it is easy to cover positioning.

[0018] (5)在所述第(4)项的基础上,所述靠背支承杆后视呈X形,所述弯曲覆盖部覆盖所述X形中央的交叉部,所述弯曲覆盖部的横向宽度大于所述直立杆和/或所述朝前杆的横向宽度,并且所述弯曲覆盖部基本呈球面状地向后方突出。 [0018] (5) on the basis of the item (4), the rear view of the backrest support rod in an X-shaped cross section covering the curved cover portion of the central X-shaped, the curved cover portion lateral width greater than the vertical rods and / or lateral width of the forward bar and the curved cover portion substantially spherical shape projecting backward.

[0019] 按照所述结构,能左右平衡且可靠地支承靠背,并且能消除靠背支承杆后表面的棱角,从而能避免靠背支承杆与其他物品抵接时的应力集中,并且能呈现出漂亮的外观。 [0019] According to the construction, can reliably support the left-right balance and back, and can eliminate the rear surface of the backrest support rod corners, thereby to avoid stress concentration when the backrest support rod in abutment with other items, and can exhibit beautiful Exterior.

[0020] (6)在所述第(4)或第(5)项的基础上,在所述靠背支承杆的所述直立杆上端部后表面上还具有凹部,所述凹部用于安装所述靠背,在所述凹部内按压嵌入有弹性突起部,所述弹性突起部设置在所述保护盖的各个直立覆盖部的上端部前表面上。 Term basis [0020] (6) of said first (4) or (5), the backrest support rod in the rear upright rod portion further includes an end surface of the recess, the recess for installation said backrest, in the recess portion presses the elastic protrusions is fitted, the resilient projection portion is provided on the front surface of the upper end portion of each of the vertical covering portion of the protective cover.

[0021] 按照所述结构,能难以剥离且可靠地将保护盖的各直立覆盖部前端部安装在靠背支承杆上,并且能封闭靠背安装用凹部,使外形美观。 [0021] According to this structure, and can be difficult to peel surely the leading end portion of each of the vertical covering portions of the protective cover mounting support rod backrest, the backrest and can be blocked mounting recess, so that appearance.

[0022] (7)在所述第(I)项的基础上,在所述靠背支承杆后表面和所述保护盖前表面之间的相对部的一部分上形成有空隙部,所述保护盖的至少与所述空隙部对应的部分由弹性材料形成。 [0022] (7) on the basis of the item (I) on the surface of the protective cover forming a gap between a portion opposing the front surface portion of the rear of the backrest support rod in a protective cover forming at least a portion of the gap portion corresponding to the elastic material.

[0023] 按照所述结构,当其他物品抵接于保护盖的与空隙部对应部分的后表面时,通过弹性变形使该部分进入空隙部内,从而能进一步提高保护盖的缓冲作用。 [0023] According to the construction, when the article comes into contact with the other surface of the protective cover corresponding to the gap portion by elastic deformation of the portion into the gap portion can be further improved cushioning effect of the protective cover.

[0024] (8)在所述第(I)项的基础上,所述靠背包括靠背框架,所述靠背框架包括:空间部,配置在所述靠背框架的中央;以及带板状的框架构件,张紧设置有用于封闭所述空间部的张紧件,所述椅子还包括左右一对伸出部,在所述靠背框架左右方向内侧边缘的上下方向基本中间位置上,左右一对所述伸出部以沿左右方向相对的方式向内侧伸出。 [0024] (8) on the basis of the item (I) on the backrest comprises a backrest frame, said back frame comprising: a space portion is disposed at the center of the backrest frame; and a frame-shaped member with , provided with a tensioning element for tensioning the space closing portion, said chair further comprises a pair of projecting portions, in a substantially intermediate position in the vertical direction inside edge of the backrest frame on the right and left direction, the left and right projecting portion in a manner opposite to the left-right direction projecting inward.

[0025] 按照所述结构,容易使构成靠背的靠背框架成型。 [0025] According to the construction, constituting the backrest frame of the backrest easily molded.

[0026] 此外,由于倚靠时施加在靠背框架上的负荷作用于随靠背后倾造成的靠背框架弯曲的方向,所以通过形成伸出部能提高靠背框架本身的弯曲强度。 [0026] Further, since the load acting on the seat back frame with applied against the back frame to tilt back against the direction of bending caused, by forming the projecting portion can improve the bending strength of the backrest frame itself.

[0027] 另外,通过形成伸出部,可以由大面积的伸出部来充分地确保连接靠背框架和靠背支承杆所需的面积,从而能通过简单的结构牢固地连接靠背框架和靠背支承杆。 [0027] Further, by forming the projecting portion may protrude from the large-area connection portion to sufficiently ensure the backrest frame and the backrest support rod in a desired area, so that by a simple structure firmly connected to the backrest frame and the backrest support rod .

[0028] (9)在所述第⑶项的基础上,所述伸出部向后方突出。 [0028] (9) On the basis of the first item on ⑶, the projecting portion projecting rearward.

[0029] 按照所述结构,由于伸出部向后方突出,所以能进一步提高靠背框架的强度。 [0029] According to the construction, since the projecting portion projecting rearward, it is possible to further improve the strength of the backrest frame.

[0030] (10)在所述第(8)项的基础上,所述靠背支承杆的上部安装在所述伸出部的后表面上。 [0030] (10) On the basis of the item (8), the upper portion of the backrest support rod is mounted on the rear surface of the projecting portion. [0031] 按照所述结构,能提高靠背框架和靠背支承框架的连接强度。 [0031] According to this structure, the connection strength can be improved backrest frame and the backrest support frame.

[0032] (11)在所述第(10)项的基础上,由朝向左右方向的枢轴将所述靠背支承杆的上部枢轴安装在所述伸出部上,使所述靠背支承杆的上部能在规定的界限范围内全向转动。 [0032] (11) On the basis of the first item (10), by a pivot extending in the lateral direction of the upper pivot of the backrest support rod is mounted on the projecting portion, the backrest support rod the upper portion can be omni-directional range within predetermined limits.

[0033] 按照所述结构,靠背从动于使用者后背的动作,可以相对于靠背支承杆平稳地转动。 [0033] According to this structure, the back backrest driven to a user action, with respect to the backrest support rod can be rotated smoothly.

[0034] (12)在所述第(11)项的基础上,在所述伸出部和所述靠背支承杆的上部之间,夹持有缓冲构件,所述缓冲构件包括软质弹性体。 [0034] (12) On the basis of the item (11), extending between the upper portion and the backrest support rod, sandwiched cushioning member, a cushioning member comprising a soft elastomer .

[0035] 按照所述结构,能有效防止因椅子长期使用而造成靠背框架和靠背支承杆上部之间的连接部位磨损或损坏。 [0035] According to the construction, can effectively prevent the chair caused by long-term use connecting portion between the backrest frame and the backrest support rod portion is worn or damaged.

[0036] 本发明提供一种椅子,在椅子旋转时等情况下,能可靠地防止因靠背支承杆抵接于其他物品而导致物品或靠背支承杆本身受损,并且部件数量少、结构简单且容易组装。 [0036] The present invention provides a chair, in a case where the rotary chairs can be reliably prevented due to the backrest support rod abuts against the other article or cause damage to the article itself backrest support rod, and a small number of components, a simple structure and easy to assemble.

[0037] 此外,能通过简单的结构来牢固地连接构成靠背的靠背框架和靠背支承杆。 [0037] In addition, by a simple structure firmly connected to the backrest frame and the backrest support rod constituting the backrest.

附图说明 BRIEF DESCRIPTION

[0038] 图1是本发明第一实施方式的椅子的主视图。 [0038] FIG. 1 is a front elevational view of a first embodiment of the present invention.

[0039] 图2是本发明第一实施方式的椅子的侧视图。 [0039] FIG. 2 is a side view of the chair of the first embodiment of the present invention.

[0040] 图3是本发明第一实施方式的椅子的后视图。 [0040] FIG. 3 is a rear elevational view of a first embodiment of the present invention.

[0041] 图4是沿图3的IV-1V线的放大纵剖端面图。 [0041] FIG. 4 is an enlarged longitudinal along the line IV-1V of Fig. 3 a cross-sectional end view.

[0042] 图5是沿图2的VV线的放大横剖俯视图。 [0042] FIG. 5 is an enlarged taken along line VV of FIG 2 a cross-sectional view of FIG.

[0043] 图6是使靠背支承杆后倾时的侧视图。 [0043] FIG. 6 is a side view of the backrest support rod after tilting.

[0044] 图7是本发明第二实施方式的椅子的立体图。 [0044] FIG. 7 is a perspective view of a chair of a second embodiment of the present invention.

[0045] 图8是本发明第二实施方式的椅子的后视图。 [0045] FIG. 8 is a rear elevational view of a second embodiment of the present invention.

[0046] 图9是本发明第二实施方式的椅子的侧视图。 [0046] FIG. 9 is a side view of the chair of a second embodiment of the present invention.

[0047] 图10是在未张紧设置张紧件状态下的框体的放大立体图。 [0047] FIG. 10 is an enlarged perspective view in FIG untensioned frame disposed under tension member state.

[0048] 图11是在未张紧设置张紧件状态下的框体前视分解立体图。 [0048] FIG. 11 is in an untensioned frame member under a state of tension provided exploded perspective front view of FIG.

[0049] 图12是在未张紧设置张紧件状态下的框体后视分解立体图。 [0049] FIG. 12 is a view of the rear housing untensioned under tension member disposed exploded perspective view of a state.

[0050] 图13是沿图10的XII1-XIII线的在张紧设置张紧件状态下的放大纵断面图。 [0050] FIG 13 taken along line XII1-XIII of FIG. 10 is stretched in an enlarged longitudinal sectional view of the lower tension member state.

[0051] 图14是沿图10的XIV-XIV线的在张紧设置张紧件状态下的放大横断面图。 [0051] FIG. 14 is taken along line XIV-XIV in FIG. 10 is stretched under tension enlarged cross sectional view of a state member.

[0052] 图15是沿图10的XV-XV线的在张紧设置张紧件状态下的放大纵断面图。 [0052] FIG 15 taken along line XV-XV in FIG. 10 is an enlarged longitudinal sectional view of the tension is provided in a tensioned state member.

[0053] 图16是沿图10的XV1-XVI线的在张紧设置张紧件状态下的放大纵断面图。 [0053] FIG 16 taken along line XV1-XVI of Figure 10 is stretched in an enlarged longitudinal sectional view of the lower tension member state.

[0054] 图17是表示沿图9的XVI1-XVII线的框体和靠背支承框架的连接状态的要部放大横断面图。 [0054] FIG. 17 is a section showing a connected state to the frame XVI1 XVII-line in FIG. 9 and the backrest support frame enlarged cross-sectional view.

[0055] 图18是表示沿图9的XVI1-XVII线的框体和靠背支承框架的连接状态的分解立体图。 [0055] FIG. 18 is an exploded perspective view showing the connection of the housing XVI1 XVII-line in FIG. 9 and the backrest support frame.

具体实施方式 Detailed ways

[0056] 以下,参照附图对本发明的实施方式进行说明。 [0056] Hereinafter, with reference to the accompanying drawings of embodiments of the present invention will be described.

[0057] 图1〜图6表不本发明第一实施方式的椅子。 [0057] FIG Table 1 ~ 6 of the present invention is not a first embodiment of the chair.

[0058] 如图1和图2所示,该椅子具备椅腿3,该椅腿3具有呈放射状的五根腿杆2,在腿杆2的前端部设置有滚动轮I。 [0058] FIGS. 1 and 2, the chair is provided with legs 3, the legs 3 having a rolling wheel of five leg rods 2 radially, the distal end portion 2 is disposed in the leg rod I. 在椅腿3的中央直立设置有伸缩式的腿柱4,该腿柱4具备气体弹簧(Gas Spring、未图示),支座5的后部固定在腿柱4的上端。 In the central leg 3 is provided with upright telescopic legs column 4, column 4 of the leg is provided with a gas spring (Gas Spring, not shown), the rear support leg 5 is fixed to the upper column 4.

[0059] 支座5呈上表面开口的大体中空箱状,可装卸的盖(未图示)覆盖在其上表面的开口部上。 [0059] 5 goes to support a generally hollow box-shaped surface of the opening, the cover may be removable (not shown) which covers the opening portion of the upper surface.

[0060] 在支座5的内部设置有两种压靠装置(两者均未图示)等,一种压靠装置对靠背6向直立方向施加作用力,另一种压靠装置对座7向前方施加作用力,由于所述压靠装置与本发明无直接关系,所以省略了图示和详细说明。 [0060] The holder 5 is provided inside the two pressing against the means (both not shown), a bonding device 6 applies a force to the vertical direction of the backrest, another device is pressed against the seat 7 applying a force to the front, because the bonding device not directly related to the present invention, the illustration and detailed description thereof will be omitted.

[0061] 朝向左右方向的六棱柱状的枢轴8以贯通方式枢轴支承在支座5的后部,使所述枢轴8可以绕其中心轴线转动。 8 is pivotally supported about a hexagonal columnar [0061] in a direction toward the pivot penetrating manner at the rear of the support 5, so that the pivot axis 8 may be rotated about its central axis.

[0062] 用于支承靠背6的靠背支承杆9的前端部以与枢轴8 一体转动的方式固定在枢轴8的两端部上,该枢轴8的两端部从支座5的两侧壁向左右突出。 [0062] The backrest for supporting the distal end portion 6 of the backrest support rod 9 to rotate with the pivot shaft 8 integrally fixed to the both end portions of the pivot shaft 8, both ends of the pivot shaft 8 from two support 5 projecting the left and right side walls. 所述枢轴8通过设置在支座5内的例如由螺旋弹簧等构成的压靠装置(未图示),对靠背6和靠背支承杆9朝向直立方向施加作用力,即,朝向图2中的逆时针方向施加作用力。 By applying the pivot 8 is provided within the carrier 5 is made of, for example, by the pressing means against the coil spring or the like (not shown) of the backrest 6 and the backrest support rod 9 toward a direction vertical force, i.e., toward the FIG. 2 the counterclockwise force is applied.

[0063] 靠背支承杆9侧视呈大体L形,通过弯曲部9c将朝向上方的直立部9a和朝向前方的朝前部9b相互连接,直立部9a由左右一对直立杆9d、9d构成,一对直立杆9d、9d从弯曲部9c分支,并且向上方延伸,此外,朝前部9b由左右一对朝前杆9e、9e构成,一对朝前杆9e、9e从弯曲部9c分支,并且向前方延伸,枢轴8的各端部分别嵌合固定在朝向左右方向的六边形孔9f、9f中,该六边形孔9f、9f设置在所述左右一对朝前杆9e、9e的前端。 [0063] The backrest support rod 9 generally L-shaped viewed from the side, through the curved portion toward the upstanding portion 9a 9c upward and toward the front of the forward portion 9b are interconnected, upstanding portion 9a of a pair of vertical rods 9d, 9d configuration, a pair of upstanding rods 9d, 9d, and extends from the curved portion 9c upward branch, in addition, the forward portion 9b is formed of a pair of forward rods 9e, 9e constitute a pair of forward rods 9e, 9e branched from the bent portion 9c, and extends forward, end portion of each of the pivot 8 are respectively fitted in the hexagonal hole 9f is fixed toward the right and left direction, 9f, the hexagonal holes 9f, 9f provided in the left and right pair of forward rods 9E, 9e of the front end.

[0064] 如图3和图4所示,通过使靠背支承杆9的左右的直立杆9d、9d从弯曲部9c倾斜地朝向外侧上方呈圆弧状延伸,并且使左右的朝前杆9e、9e倾斜地朝向外侧前下方延伸,从而使靠背支承杆9后视呈X形,作为其中央的交叉部的弯曲部9c的横向宽度大于各直立杆9d和朝前杆9e的横向宽度,并且弯曲部9c大体呈球面状地向后方突出。 [0064] FIGS. 3 and 4, by the right and left backrest support rod 9 of the vertical rods 9d, 9d from the curved arcuate portion 9c extends obliquely upward outward, and the left and right forward rods 9E, 9e extends outward obliquely downward toward the front, so that after the backrest support rod 9 view X-shaped, as the lateral width of the bent portion thereof intersecting the center portion 9c is greater than the transverse width of each of the vertical rods 9d and the forward rod 9e, and the curved portion 9c substantially spherical shape projecting backward.

[0065] 在靠背支承杆9的弯曲部9c和两根直立杆9d、9d的大致整个后表面、以及从两根朝前杆9e、9e的后表面到下表面后部的部分上,设置有连续的浅凹部10,覆盖靠背支承杆9后表面的保护盖11可装卸地嵌合在所述凹部10上,并通过粘接剂或尼龙搭扣粘接在靠背支承杆9上,或者根据需要螺合固定在靠背支承杆9上。 [0065] The backrest support rod bent portion 9c and 9d. 9 of the two upright bars substantially the entire rear surface 9d, and two from the rear surface toward the front rods 9e, 9e of the rear portion to the lower portion of the upper surface, is provided with a continuous shallow recesses 10, covering the surface of the backrest support rod protective cover 11 may be removably fitted in the recess 9 the portion 10, and supported at the back by an adhesive or velcro adhesive rod 9, or as needed is screwed rod 9 supporting the backrest.

[0066] 优选保护盖11的厚度与凹部10的深度大体相等,使保护盖11的表面和靠背支承杆9的表面一致,不会产生阶差。 [0066] Preferably the thickness of the protective cap 11 and the recessed portion 10 is substantially equal to the depth of the surface of the protective cover 11 and the backrest surface support bars 9 of the same, no difference in level.

[0067] 保护盖11由软质合成树脂材料、橡胶或其他缓冲件构成,该保护盖11具备:弯曲覆盖部11a,覆盖靠背支承杆9的弯曲部9c的后表面;直立覆盖部11b,连接设置在所述弯曲覆盖部Ila上,并且覆盖各直立杆9d的后表面;以及朝前覆盖部11c,连接设置在弯曲覆盖部Ila上,并且覆盖各朝前杆9e的下表面。 [0067] The protective cover 11 is made of soft synthetic resin material, rubber, or other cushioning member, the protective cover 11 includes: a curved covering portion 11a, covering the rear surface of the curved portion 9c of the backrest support rod 9; vertical covering portion 11b, connected to provided on the curved cover portion Ila, and covers the rear surface of each of the vertical rods 9d; and a forward covering portion 11c, the connection portion is provided on the curved cover Ila, and covers the lower surface of each of the forward rods 9e.

[0068] 用于安装靠背6的凹部12设置在靠背支承杆9的各直立杆9d的上端部后表面,通过将设置在保护盖11的各直立覆盖部Ilb的上端部前表面上的弹性突起部Ild压入嵌合在所述凹部12中,能使保护盖11的各直立覆盖部Ilb的前端部以难以剥离的方式可靠地安装在靠背支承杆9上,同时可以封闭用于安装靠背6的凹部12,可以使外表美观。 [0068] for mounting the backrest recess portion 12 is provided 6 of each upright bars 9 in the backrest support rod upper portion of the rear surface 9d by the elastic on the front surface of the upper portion of the protective cover of each upright cover portion Ilb 11 of projection Ild portion press-fitted in the recess portion 12, the distal end portion of the protective cover can cover each upright portion Ilb 11 in a manner difficult to reliably release the backrest mounting support rod 9, can be closed at the same time for mounting the backrest 6 the recess 12 can be made aesthetically pleasing.

[0069] 此外,在靠背支承杆9的后表面与保护盖11的前表面的相对部的一部分上,形成有空隙部(未图示),并且如果至少使保护盖11的与上述空隙部对应的部分由弹性材料形成,则当其他物品抵接于保护盖11的与空隙部对应部分的后表面时,保护盖11的该部分会发生弹性变形并进入空隙部内,能进一步提高保护盖11的缓冲作用。 [0069] Further, in the upper portion of the backrest support rod opposite the front surface of the cover portion 11 of the rear surface of the protection 9, thereby forming a gap (not shown), and if the protective cover and the gap portion corresponding to at least 11 portion is formed of an elastic material, when the other articles abuts protection and the gap portion corresponding to the rear surface portion of the cover 11, the portion of the protective cap 11 will elastically deform and into the gap portion can be further improved protective cover 11 buffer.

[0070] 由于在靠背支承杆9上设置有所述保护盖11,所以在椅子旋转等情况下,能可靠地防止因靠背支承杆9与其他物品抵接而导致物品或靠背支承杆9本身损坏,特别是还能防止因靠背支承杆9的朝前部9b的下表面抵接于低处的地面放置物的上表面棱角、而导致放置物或靠背支承杆9本身损坏。 [0070] Because of the backrest support rod 9 is provided with the protective cover 11, so that in the case of the chair rotating the like can be reliably prevented due to the backrest support rod 9 comes into contact with other items or articles resulting from the backrest support rod 9 itself is damaged , especially the lower surface 9 can prevent the forward portion 9b of the backrest support rod abuts against the lower surface of the ground at the edges was placed, resulting in place or the backrest support rod 9 itself is damaged.

[0071] 靠背6俯视呈中央部向后方凹入的圆弧状,并且是由可以弹性变形的软质合成树脂材料构成的板构件,或者是在其前表面夹着缓冲件(未图示)来包覆表面件(未图示)的构件等,靠背6的上下方向中间部的两侧部后表面以能绕朝向大体左右方向的轴线转动、且能朝向偏离上述轴线的方向转动规定角度的方式,被支承在靠背支承杆9的左右的直立杆9d、9d的上端部上。 [0071] The backrest 6 arcuate shape in plan view the central portion recessed backward, and a plate member is soft synthetic resin material may be composed of elastically deformable, or sandwiching a buffer member on the front surface thereof (not shown) to coat the surface member (not shown) of the member and the like, the vertical direction on both sides of the back portion 6 an intermediate portion of the surface as to be substantially oriented in the lateral direction about the axis of rotation, and can be offset from a direction toward said axis of rotation of a predetermined angle manner, is supported on the backrest support rod 9 around the vertical rods 9d, 9d of the upper portion.

[0072] 由于以上述方式支承靠背6,所以如图5所示,凸轴13突出设置在靠背支承杆9的各直立杆9d的上端部前表面上,座孔14设置在与所述各直立杆9d的上端部前表面相对的靠背6的侧部后表面上,所述凸轴13的前端部与所述座孔14嵌合,并且大体朝向左右方向的防脱销17与大体朝向左右方向的轴孔15活动嵌合,所述轴孔15设置在凸轴13的前端部上,所述防脱销17的两端部固定在座板16的向后方开口的筒部16a上,该座板16用于形成座孔14,被固定在靠背6的后表面上。 [0072] Since the above-described manner backrest support 6, so that each of the vertical rods 9, the convex projection 13 axially supported on the lever 5 in the upper portion of the backrest surface 9d of the front seat holes 14 provided in the respective upright the rear side of the back surface opposite the upper surface portion 6, the projecting end of the shaft portion 13 of fitting hole 14 of the seat front portion of the upper end 9d of the lever, and a generally left-right direction toward the stopper pin 17 and generally toward the right and left direction the movable engaging the shaft hole 15, the shaft hole 15 is provided on the front end portion of the projecting shaft 13, preventing the upper tubular portion 16a both end portions of the stock 17 is fixed to the rear opening of the seat plate 16, seat plate 16 with the forming bore 14, it is fixed to the rear surface of the backrest 6.

[0073] 凸轴13的前端部13a为球体,轴孔15贯通该球体中心,所述轴孔15的中央部15a的内径与防脱销17的外径大体相等,并且从中央部15a向两侧形成有锥形孔部15b、15b,该锥形孔部15b、15b向外侧逐渐扩径。 [0073] The distal portion 13 of the projecting shaft 13a as a sphere, a shaft hole 15 penetrating the center of the sphere, the center portion of the shaft hole 15a of the stopper pin 15 with an inner diameter substantially equal to the outer diameter 17, and both sides from the central portion 15a It is formed with a tapered hole portion 15b, 15b, the tapered hole portion 15b, 15b gradually expanding outward.

[0074] 在图5所示的例子中,防脱销17为螺栓,通过使其贯通座板16的筒部16a和凸轴13的前端部13a的轴孔15,并使螺母17a螺合于该防脱销17的前端部,能防止防脱销17从筒部16a和轴孔15脱落,并且防止凸轴13从座孔14脱落。 [0074] In the example shown in FIG. 5, the stopper pin 17 is a bolt, a shaft hole through it through the front end portion 16 of the seat plate 16a and a cylindrical portion 13a of the projection 15 of the shaft 13, and a nut 17a is screwed to the the distal end portion of the stopper pin 17, the stopper pin 17 can be prevented from falling off from the barrel portion 16a and the shaft hole 15, and prevents the projection 13 from coming off the shaft bore 14. 所述防脱销17也可以是销而不是螺栓,此外,防脱销17的安装方向不仅可以是左右方向,也可以是平行于略微倾斜的靠背的后表面的方向。 The retainer pins 17 may be a pin, rather than the bolt, in addition, the mounting direction of the stopper pin 17 may be not only a right-left direction, it may be parallel to the direction of the rear surface of the backrest slightly inclined. 另外,可以弹性变形的盖18覆盖凸轴13与筒部16a的连接部分的外周。 Further, the elastically deformable cover 18 covers the outer periphery of the protruding shaft 13 and the connecting portion of the cylindrical portion 16a.

[0075] 在凸轴13的中间部形成有扩径锷部13b,并且所述扩径锷部13b抵接于直立杆9d的上端部前表面,凸轴13的基端部13c与轴孔19嵌合,所述轴孔19设置在直立杆9d的上端部前表面上且朝向后方,并且利用固定螺钉20将凸轴13固定在直立杆9d上,该固定螺钉20与设置在直立杆9d的上端部后表面上的上述凹部12嵌合,由此,将凸轴13牢固地固定在直立杆9d的上端部。 [0075] The enlarged diameter flange portion 13b, and the diameter flange portion 13b abuts on the upper end portion of the front surface of the vertical rods 9d, 13c and the base end portion of the shaft hole 13 of the protruding shaft portion 19 is formed in the intermediate shaft 13 projecting fitted in the shaft hole 19 is provided on the front surface of the vertical rods 9d, and the upper end portion toward the rear, and the male screw 20 by the fixing shaft 13 is fixed to the vertical rods 9d, the fixing screw 20 is provided with vertical rods 9d, after the upper portion of the concave portion 12 fitted on the surface, thereby, the protruding shaft 13 is firmly fixed to the upper portion of the upright bars 9d.

[0076] 优选座孔14的底部端面为球面,与凸轴13的前端部13a的球面呈互补形。 [0076] The bore 14 preferably bottom end surface is a spherical, ball-section projecting shaft tip portion 13a of a complementary shape.

[0077] 另外,也可以在靠背6的侧部后表面向后方突出设置凸轴13,并且在与所述凸轴相对的靠背支承杆9的各直立杆9d的上端部前表面形成座孔14。 [0077] Further, the surface may be convex protrusion shaft 13 in the backward side of the backrest portion 6 and the seat holes 14 are formed in the upper portion of the front surface of each upright rod and the backrest support rod 9 protruding shaft opposite to 9d .

[0078] 如果按照所述方式支承靠背6,则仅通过使防脱销17与设置在凸轴13前端部的轴孔15活动嵌合,就能支承靠背6,不仅能使其绕朝向左右方向的轴线转动,还能使其朝向偏离上述轴线的方向转动规定角度,所以无需球窝接头等昂贵的装置就可以支承靠背6,而不会产生不良情况,并且能够使就座者感觉舒适。 [0078] If the backrest support 6 according to the embodiment, only by making the stopper pin 17 provided at the distal end portion of the shaft hole 13 of the movable engaging projection shaft 15, the backrest 6 can be supported, not only can it toward the right and left about an axis of rotation, but also so offset from said axis direction toward a predetermined rotational angle, so no expensive equipment like the ball joint can support the backrest 6, without adverse situation and enables the seated person to feel comfortable.

[0079] 由连接杆21连接支座5的比枢轴8靠向后方的部分和比该部分靠向上方的靠背6下部,当靠背支承杆9后倾时,利用向后下方转动的连接杆21,使靠背6的下部相对于靠背支承杆9被压向后方。 [0079] abutment 21 connected by a connecting rod 8 of the pivot shaft 5 toward the rear portion and the ratio of the upper portion toward the lower portion of the back 6, when the backrest support rod 9 was poured, using a backward rotation of the lower connecting rod 21, the lower backrest 6 relative to the backrest support rod 9 is pressed rearward.

[0080] S卩,连接杆21的前端部通过朝向左右方向的轴22与支座5连接,连接杆21的后端部通过朝向左右方向的轴24与安装金属零件23的从靠背6向下方突出的下端部连接,该安装金属零件23固定在靠背6的下端部后表面上。 [0080] S Jie, the distal end portion of the connecting rod 21 is connected by a shaft 22 extending in the lateral direction of the holder 5, the rear end portion 21 of the connecting rod 24 and the mounting metal fitting 6 downward from the backrest via shaft 23 extending in the lateral direction projecting lower end portion connected to the mounting metal fitting 23 is fixed to the rear surface of the lower end portion of the seatback 6.

[0081] 连接杆21由曲率中心位于连接杆21上方(或下方)的侧视呈圆弧状的刚体构成,通过将其配置在靠背支承杆9的左右一对朝前杆9e、9e之间,使其被夹在两根朝前杆9e、9e之间,而不容易露在外部。 [0081] The connecting rod 21 by a connecting rod 21 the center of curvature is located above (or below) a side arc-shaped rigid body, which is disposed through the backrest support rod 9 around a pair of forward rods 9e, 9e between , that it is sandwiched between two forward rods 9E, 9E between, it is not easily exposed to the outside.

[0082] 按照所述结构,如图6所示,当倚靠时,靠背支承杆9后倾,伴随于此,连接杆21也后倾,此时,由于靠背支承杆9的转动中心(枢轴8)不同于连接杆21的转动中心(轴22),所以连接杆21的后端部向后方按压靠背6的下部,靠背6相对于靠背支承杆9,以朝向左右方向的轴线(防脱销17)为中心,向与靠背支承杆9的转动方向(后倾方向)相反的方向(直立方向)转动。 [0082] According to the construction, as shown in FIG 6, when the lean, the tilting backrest support rod 9, along with this, the connecting rod 21 backward tilt, this time, because the rotation center of the backrest support rod 9 (pivot 8) differs from the rotational center of the connecting rod (shaft 22) 21, the rear end portion of the connecting rod 21 is pressed rearward lower portion of the backrest 6, the backrest 6 relative to the backrest support rod 9, right and left toward the axial direction (the stopper pin 17 ) as the center, is rotated in the direction of rotation of the backrest support rod 9 (rearward tilt direction) opposite to a direction (vertical direction).

[0083] 座支承体25将座7支承成可以调节前后位置,所述座支承体25的后部和前部由后部支承装置26和前部支承装置27支承在支座5上,以与靠背支承杆9的后倾连动、分别向后下方移动的方式,由后部支承装置26和前部支承装置27引导座支承体25的后部和前部。 [0083] The seat support 25 to the seat support 7 may be adjusted longitudinal position of said seat rear and front support body 25 by the rear support 26 and front support means 27 supported on the support 5, with the after tilting the backrest support rod 9 is linked, respectively, rearward and downward movable manner, the guide 27 support the rear seat 25 and the front portion is supported by the rear portion 26 and front support means.

[0084] 在支座5的比靠背支承杆9的枢轴8更靠向后方、且比连接杆21的轴22更靠向前方的部位,连杆29的上端部被左右方向的轴30枢轴安装在座支承体25的后部,其中,该连杆29的下端部被左右方向的轴28枢轴安装,并且所述连杆29上端部的轴30滑动自如地嵌合在大体朝向前后方向的长孔31中,该长孔31设置在靠背支承杆9的各朝前杆9e中的、比连杆29下端部的轴28更靠向后方的部分上,由此,构成后部支承装置26。 [0084] In the seat backrest support pivot rod than 5 8 9 more toward the rear, and a portion 22 more toward the front than the connecting rod shaft 21, the pivot shaft 30 of the link 29 is an upper left direction a support shaft is mounted the rear portion 25 of the seat body, wherein the shaft lower end portion of the link 29 is pivotally mounted to the lateral direction 28, the link shaft 30 and the upper end portion 29 slidably fitted in a direction generally toward the longitudinal the elongated hole 31, the elongated hole in the backrest support rod 31 is provided in each of forward rods 9e 9 in, more than the upper portion of the shaft 29 toward the rear lower portion link 28, thereby constituting the rear support means 26.

[0085] 所述长孔31被设置在向上突片9g上,该向上突片9g被设置在靠背支承杆9的各朝前杆9e中的、比六边形孔9f略微靠向后方的部分上。 [0085] The elongated hole 31 is provided in the upward protruding piece 9g, 9g of the upwardly projecting tab is provided on each of the forward rod 9e of the backrest support rod 9, the hexagonal hole 9f than slightly toward the rear portion on.

[0086] 朝向左右方向的轴32滑动自如地嵌合在朝向后下方的长孔33中,其中,该轴32被设置在座支承体25前部,长孔33被设置在支座5上,由此,构成前部支承装置27。 About the axis [0086] direction toward 32 is slidably fitted in the long hole 33 downward toward the rear, where the shaft 32 is disposed the seat body 25 supported by the front long hole 33 is provided on the support 5, by the here, the front portion constituting the supporting means 27.

[0087] 通过设置在支座5内的压靠装置(未图示),始终对所述轴32向前方施加作用力。 [0087] provided by the pressure within the carrier 5 by means (not shown), a force is always applied to the front 32 of the shaft.

[0088] 另外,所述前部支承装置27也可以采用以下结构来代替上述结构,S卩,如专利文献I记载的那样,用支座前部上所设置的朝上的支承连杆的上端部与座的前部连接,并且支承连杆可以后倾(未图示)。 [0088] Further, the front portion of the support means 27 may be employed instead of the structure of the structure, S Jie, as described in Patent Document I, with the upper end of the support rod upward abutment portion provided on the front of the front portion of the seat portion is connected to, and can be reclining support link (not shown).

[0089] 按照所述椅子的上述结构,当使用者倚靠着靠背6时,靠背6俯视以中央部比两侧部向后方凹入的方式发生弹性变形。 [0089] According to the above structure of the chair, when the user leans against the backrest 6, the backrest 6 to the center of a top portion of the recessed portion toward the rear than the sides elastically deformed. 此时,通过左右的防脱销17在凸轴13的轴孔15内略微倾斜移动,来容许靠背6的弹性变形。 At this time, the left and right movement prevention pin 17 is slightly inclined in the axial hole 15 of the protruding shaft 13 to allow backrest 6 elastically deformed.

[0090] 此外,靠背支承杆9和靠背6 —起克服支座5内设置的压靠装置的作用力,发生后倾,与此同时,连接杆21以其下方的轴22为中心后倾。 [0090] In addition, the backrest and the backrest support rod 9 6 - from the seat against the biasing force provided by the pressure means 5, after the occurrence of tilt, at the same time, the connecting rod 21 with its shaft 22 as the center of tilting below.

[0091] 此时,由于连接杆21的后倾角速度大于靠背支承杆9的后倾角速度,而且连接杆21的轴22位于比靠背支承杆9的枢轴8更靠向后方的位置,所以利用连接杆21后端部的轴24按压靠背6的下端部向后方移动,靠背6相对于靠背支承杆9,以朝向左右方向的轴线(防脱销17)为中心,向与靠背支承杆9的转动方向(后倾方向)相反的方向(直立方向)转动。 [0091] At this time, since the connecting rod 21 is greater than the angle speed of the speed of inclination of the backrest support rod 9, and positioned over the backrest support rod 9 of the pivot 8 toward a more rearward position of the shaft 21 of the connecting rod 22, so the use of the connecting rod 24 presses the lower end portion of the back portion of the rear end 21 of the shaft 6 moves backward, the backrest 6 relative to the backrest support rod 9, right and left toward the axial direction (the stopper pin 17) as the center of rotation 9 to the backrest support rod direction (the tilt direction) opposite to a direction (vertical direction) is rotated. [0092] 即,在倚靠时,即使靠背支承杆9后倾,由于抑制了靠背6后倾,使其保持直立的状态,所以使用者能保持使后背后倾的舒适姿势的同时,可以毫不勉强地使视线和手臂朝向前方或前下方,以轻松的姿势进行敲打键盘的操作等。 [0092] That is, when the lean even after tilting backrest support rod 9, by suppressing the tilting backrest 6, to keep it upright state, so the user can maintain a comfortable position behind the tilting simultaneously, it is no reluctantly and the sight line toward the front or the lower front arm, an easy posture operates the keyboard or the like.

[0093] 另外,在以往椅子的基本结构的基础上,仅附加由连接杆21连接支座5和靠背6的下部的简单结构,就可以在保持上述的舒适姿势的同时,轻松地进行敲打键盘的操作等,无需像以往那样,采取靠背6本身侧视呈可在前后方向弯曲的结构、或靠背6由复杂的支承结构支承,从而能使椅子整体结构简化。 [0093] Further, on the basis of a conventional chair basic structure, the simple structure attached only by a connecting rod 21 connected to a lower portion of the support 5 and the backrest 6, while maintaining the above can be comfortable posture, easily make the keyboard the operation, as before without the need to take back 6 viewed from the side in the longitudinal direction of the bendable structure itself, or the backrest 6 supported by a complicated supporting structure, thereby enabling to simplify the overall structure of the chair.

[0094] 随着靠背支承杆9的后倾,利用设置在所述向上突片9g上的长孔31,使轴30向后下方移动,由此,使连杆29后倾。 [0094] With the reclining backrest support rod 9, the use of the long holes provided on the upwardly protruding piece 9g, 31, so that downward movement of shaft 30 rearwardly, whereby the rear link 29 backward.

[0095] 此时,由于连杆29的后倾角速度大于靠背支承杆9的后倾角速度,而且连杆29的轴28位于比靠背支承杆9的枢轴8更靠向后方的位置,所以轴30向后方的移动量大于靠背支承杆9的长孔31向后方的移动量,轴30在长孔31内向后方滑动,此时,利用轴30的移动,使座支承体25后部向后下方大幅度移动。 [0095] At this time, since the inclination speed of the rear link 29 is greater than the inclination of the backrest support rod 9, the speed, the link 29 and shaft 28 is positioned over the backrest support rod 9 toward the pivot axis 8 more rearward position, so that the shaft 30 is greater than the rearward movement of the backrest support rod 9 of the elongated hole 31, the shaft 30 slides backward within the long hole 31 to the rearward movement amount, at this time, the movable shaft 30 of the seat back under the rear support member 25 move it.

[0096] 即,在靠背支承杆9后倾时,上述结构能扩大座7后部向后方的移动行程,由此,当靠背支承杆9后倾时,利用连接杆21后端部按压靠背6下部向后方移动,座7后部随后向后方大幅度地移动,可以防止靠背6的下端和座7的后部分离,从而能感受到舒适的落座感。 [0096] That is, when tilting the backrest support rod 9, the above-described configuration to expand the rear seat 7 moves backward stroke, whereby, when the backrest support rod 9 was poured, using a rear end portion of the connecting rod 21 presses the backrest 6 lower moving backward, and then the rear seat 7 moves backward greatly, it is possible to prevent the lower end of the backrest and the seat rear portion 6 of 7 separate, so that it can feel a comfortable seating feeling.

[0097] 座支承体25后部通过轴30被移向后下方,随后座支承体25前部克服设置在支座5内的压靠装置的作用力,使座支承体25前部的轴32沿长孔33向后下方滑动,由此,使座支承体25的前部平稳地向后下方移动。 [0097] The rear seat 25 is moved toward the support shaft 30 by the downward, then the front of the seat support member 25 against the force of pressure is provided within the seat 5 by means of the shaft portion 25 front seat support member 32 sliding downward along the rear long hole 33, thereby the seat back support moves smoothly downward the front portion 25.

[0098] 这样,当靠背支承杆9后倾时,靠背6的下端部被连接杆21向后方按压,靠背6相对于靠背支承杆9转动,以便保持直立状态,随着所述靠背6下部的移动,座7可以向后下方大幅度移动,使用者后背后倾的同时,毫不勉强地使视线和手臂朝向前方或前下方,以轻松的姿势进行键盘的敲打操作等,可以保持舒适的操作姿势。 [0098] Thus, when tilting the backrest support rod 9, the lower end portion of the backrest 6 is the connecting rod 21 is pressed backward, the backrest 6 relative to the backrest support rod 9 is rotated, so as to maintain an upright state, as the lower portion of the backrest 6 mobile, considerably below the seat 7 can move backwards, after dipping behind the user at the same time, not reluctantly toward the front of the line of sight and arm or lower front, a relaxed posture tap keyboard, etc., can maintain a comfortable operation posture.

[0099] 图7〜图18表不本发明第二实施方式的椅子。 [0099] FIG. 18 July to the present invention does not list the second embodiment of the chair.

[0100] 此外,与第一实施方式相同或类似的构件使用相同的附图标记,而不予以图示,同时省略了具体说明。 [0100] In addition, the same or similar manner as a member of the first embodiment the same reference numerals, and not be shown, while omitting the detailed description.

[0101] 在第一实施方式中,靠背6是由可以弹性变形的软质合成树脂材料构成的板构件,或者在其前表面夹着缓冲件来包覆表面件,而在第二实施方式中,靠背36是网眼张紧结构。 [0101] In a first embodiment, the backrest 6 is a plate member made of a soft synthetic resin material may be elastically deformable, or to coat the surface of the cushioning member interposed member at its front surface, while in the second embodiment, the backrest 36 is tensioned mesh structure.

[0102] 如图10〜图12所示,靠背36具备:网眼形状的张紧件37 ;以及作为靠背框架的框体39,所述张紧件37张紧设置在框体39的前表面,而且能封闭框体39中央所开设的空间部38。 [0102] As shown in FIG. 10~ 12, the backrest 36 is provided with: a mesh shape of the tensioning member 37; and a body frame 39 as the back frame, tensioning the tensioning member 37 is provided on the front surface of the housing 39, and closable housing space opened by the central portion 39 of 38.

[0103] 所述框体39由在外周方向连续的合成树脂制带板状的框架构件构成,具备在外周方向连续的主视呈大体方形的主框架40,该主框架40包括:上部横框架部40A ;具有期望后倾状态的左右一对侧部纵框架部40B、40B ;以及下部横框架部40C。 [0103] The frame body 39 by a frame member of the outer peripheral direction of the continuous band plate made of synthetic resin, and includes an outer circumferential direction of the continuous front view shape of a generally rectangular main frame 40, the main frame 40 includes: an upper horizontal frame 4OA portion; a right and left pair of side vertical frame portion of the rear portion having a desired tilted state 40B, 40B; and the lower cross frame section 40C.

[0104] 如图13所示,形成主框架40周向边缘一部分的上部横框架部40A呈前表面向后上方倾斜的圆弧状曲面,具有从内侧边缘向外侧边缘呈壁厚增大的断面形状,并且在所述外周向边缘后部上,沿左右方向设置有卡合槽部41,该卡合槽部41能与设置在上述张紧件37周向边缘部上的边缘构件37a卡合。 [0104] 13, a main frame forming section was 40 weeks from the inner edge to the outer edge of the increased wall thickness to form an upper horizontal frame portion of the front edge portion of the upper surface 40A rearwardly inclined arcuate surface, having shape, and is provided with an engagement groove portion 41, the engaging groove portions 41 can be provided to the edge of the engagement member 37a on the edge portion of the card above the tensioning member 37 to the rear circumferential edge of the left-right direction in the outer periphery . [0105] 如图14所示,侧部纵框架部40B的外侧边缘侧的断面形状是从壁厚较大的厚壁部的内侧边缘向上述空间部38延伸设置成壁厚较小的薄壁部,并且在所述外侧边缘部上,沿上下方向设置有与上述卡合槽部41连通的卡合槽部42,该卡合槽部42能与设置在上述张紧件37周向边缘部上的边缘构件37a卡合。 [0105] As shown, the cross-sectional shape of the outer side edge of the side portion 40B of the vertical frame portion 14 extending from the inside edge of the larger thickness of the thick portion to the space portion 38 is provided to a smaller thickness of the thin portion, and the outer edge portion, the edge portion 42 is provided with the engaging groove portion 42 can be provided with engaging groove portions of the engagement groove portion 41 communicating with the above-described tension member in the vertical direction 37 weeks the edge 37a of the engagement member.

[0106] 如图11和图12所示,留下左右端部的一部分以后,把下部横框架部40C沿前后方向的厚度方向分割成两份,将其后表面侧作为基部43,把所述基部43的左右方向中央部的一部分以期望间隔切除,并且使所述切除部44的相对端部44a、44a通过连接框架45连接在一起,所述连接框架45安装成其后表面与基部43的前表面相对,成为前表面侧的盖部。 [0106] As shown in FIG. 11 and FIG. 12, after leaving a portion of the left and right end portions, dividing the thickness direction of the lower cross frame portion 40C in the longitudinal direction into two, as the rear surface side of the base portion 43, said portion of the base 43 of the left-right direction central portion at a desired interval cut, and the opposite ends of the cut portion 44a 44, 44a are connected together by a connecting frame 45, the connecting frame 45 mounted to the rear surface 43 of the base opposite the front surface, serving as a lid portion front surface side.

[0107] 在所述连接框架45左右方向的中央部上,向后方突出设置有嵌合部46,该嵌合部46嵌合在上述基部43的切除部44上,所述嵌合部46的宽度大体等于上述主框架40处于初始状态下的切除部44的相对端部44a、44a相对面之间的间隔尺寸。 [0107] In the central portion of the connecting direction of the frame 45, projecting rearward portion is provided with a fitting 46, the fitting portion 46 is fitted in the cut portion 43 of the base portion 44, the fitting portion 46 substantially equal to the width of the main frame 40 is the spacing dimension between opposite ends of the opposing surface 44 of the cut portions 44a, 44a in the initial state.

[0108] 此外,通过轴24将连接杆21的后端安装在安装金属零件23上,该连接杆21枢轴支承在形成靠背36的框体39的下部,该安装金属零件23横跨在上述切除部44的相对端部44a、44a之间,被固定在上述基部43的后表面上。 [0108] Further, the shaft 24 through the rear end of the connecting rod 21 is mounted on the mounting metal fitting 23, the connecting rod 21 pivotally supported by the back frame 36 is formed in a lower portion of the body 39, which is mounted across the metal part 23 in the above opposite end portions 44 of the cut portion 44a, between 44a, is fixed to the rear surface of the base portion 43.

[0109] 由此,当倚靠着靠背36时,相对于连接杆21通过安装金属零件23向基部43后表面中央施加的负荷,基部43可以弹性变形。 [0109] Thus, when leaning on the backrest 36, the connecting rod 21 with respect to the load applied by the mounting metal fitting 23 to the rear surface of the central base 43, the base 43 can be elastically deformed.

[0110] 在连接框架45上形成有左右一对固定部47、47,该左右一对固定部47、47从上述嵌合部46前表面侧的两端向上述基部43的切除部44的相对端部44a、44a前表面侧延伸。 [0110] There are a pair of fixing portions 47, 47 are formed on the connecting frame 45, 47, 47 relative to the cut portion from the right and left pair of fixing both end portions of the front surface side of the fitting portion 46 toward the base portion 44 of 43 end portions 44a, 44a extending in the front surface side.

[0111] 所述固定部47的后表面抵接于上述切除部44的相对端部44a、44a的前表面,并横跨上述切除部44的相对端部44a、44a,被分别固定在基部43的前表面上。 [0111] The fixing portion 47 abuts the rear surface of the front end portion of the opposite surface 44 of the cut portion 44a, 44a, and the opposite end of the spanning portion 44 of the cut 44a, 44a, are fixed at the base 43 front surface.

[0112] 通过将基部43和连接框架45组装在一起,如图15和图16所示,下部横框架部40C形成内部为中空结构的壁厚较大的断面形状,并且在各中空部中,向前后方向分别突出设置有多个肋48、49,所述多个肋48、49沿着上下和左右方向的长度方向排列。 [0112] By the base 43 and the connecting frame 45 is assembled together, as shown in FIG. 15 and FIG. 16, the lower cross frame portion 40C is formed inside the wall thickness of the hollow structure of the larger cross-sectional shape, and each of the hollow portion, front-rear direction are respectively provided with a plurality of projecting ribs 48 and 49, the plurality of ribs 48, 49 are arranged along the longitudinal direction of the vertical and lateral directions.

[0113] 此外,在把连接框架45组装在基部43上时,肋48的端部形成与嵌合部46的左右端面抵接的抵接部48a,该肋48面向基部43的切除部44的相对端部44a、44a的相对面。 [0113] Further, when the connecting frame 45 is assembled on the base 43, the cut ends of the ribs 48 and the left and right portions of the end surface of the fitting portion 46 abuts the abutting portion 48a, which faces the base portion 43 of the rib 48 of 44 opposing surface opposite end portions 44a, 44a of.

[0114] 在基部43上的肋48附近设置有螺栓通孔50,并且在与所述螺栓通孔50相对的连接框架45的左右固定部47的肋49附近,隔着嵌合部46在左右设置有多个阴螺纹孔51。 Provided near the [0114] ribs 43 on the base 48 of bolt through holes 50, and the fixing portion in the vicinity of the left and right rib 50 opposed to the connecting frame 45 and the bolt 49 through hole 47, the fitting portion 46 via the left and right provided with a plurality of female screw holes 51.

[0115] 如图15所示,从基部43后方通过上述螺栓通孔50而被插通的螺栓52螺合在这些阴螺纹孔51中,连接框架45上的左右固定部47被所述螺栓52固定在上述基部43上。 [0115] As shown from the rear of the base 4350 is engaged by the bolt inserted through the through hole 52 of the bolt screwed in the female screw hole 51 in the right and left fixed portions 45 of the connecting frame 47 by bolt 5215 fixed to the base portion 43.

[0116] 另外,连接框架45上的左右固定部47被分成左右两份,在这些分割部47A上设置有多个螺栓通孔53,在基部43前表面上设置有与所述螺栓通孔53相对的阴螺纹孔54,螺栓55从前方分别通过上述螺栓通孔53并螺合在所述阴螺纹孔54中,从而使上述分割部47A固定于基部43的前表面。 [0116] Further, right and left fixed portions 45 of the connecting frame 47 is divided into two left and right, through a plurality of bolt holes 53 provided on the divided portions. 47A, and the bolt 53 is provided with a through hole 43 on the front surface of the base a female screw hole 54 opposing, respectively, by the bolt 55 from the front through-hole 53 and the bolt screwed in the female screw hole 54, so that the divided portion 47A is fixed to the front surface of the base 43.

[0117] 这样,通过将连接框架45的固定部47分割,在倚靠上述靠背36时,相对于施加在基部43后表面中央的负荷,基部43容易弹性变形,能够避免应力集中,并且能够扩大基部43加工精度的容许范围。 [0117] Thus, by the fixing portion connected to the frame 45 of the split 47, while against the seat back 36 with respect to the load applied to the surface of the center 43 after the base portion, the base portion 43 easily elastically deformed, it is possible to avoid stress concentration, and can be expanded base 43 allowable range of machining accuracy.

[0118] 在连接框架45上的阴螺纹孔51附近设置有向后方突出的突出部56,如图15所示,在连结状态下,所述突出部56能够与形成在基部43的螺栓通孔50附近的凹部57卡合。 [0118] connection frame 45 is provided on the female screw hole 51 near the projecting portion 56 projecting rearward, as shown in FIG. 15, in the connected state, the projecting portion 56 can be formed in the bolt through hole 43 of the base portion 50 near the recess 57 is engaged.

[0119] 在连接框架45的固定部47后表面上形成有槽部58,通过使所述槽部58面向基部43的切除部44上的相对端部44a、44a前表面,能使上述侧部纵框架部40B上设置的卡合槽部42和上述嵌合部46下表面上设置的卡合槽部46a分别连通,并且能卡合上述张紧件37周向边缘部上设置的边缘构件37a。 [0119] 47 is formed on the rear surface of the fixed portion of the connecting frame 45 has a groove portion 58, by the groove portion 58 facing the opposite ends of the cut portion 44 of the base 43 of the 44a, 44a front surface of the side portion can vertical frame portions engaging groove portion 40B 42 provided on the portion 46a and the engaging groove 46 provided on the lower surface of the fitting portion are in communication, and the above-described member can be engaged with the edge of the tensioning member 37 to the periphery of the upper edge portion 37a .

[0120] 通过从上述主框架40前表面侧向后方以卷绕方式使设置在张紧件37周向边缘部上的边缘构件37a折返,使其卡合在主框架40周向边缘部上形成的卡合槽部41、42和槽部58上,从而能够遍布框体39的前表面侧全周地张紧设置张紧件37,并封闭框体39中央的空间部38。 [0120] By the rear surface side is provided in a winding manner from the front 40 of the main frame member 37a folded back toward the edge of the edge portion of the tensioning member 37 weeks, so that the engaging portion is formed at the upper edge of the periphery of the main frame 40 the engaging grooves 41 and 42 and the groove portions 58, thereby the front surface side of the casing around the entire periphery 39 disposed tensioned tension member 37, the housing 39 and closes the central space portion 38.

[0121] 由此,能够以拉伸状态遍布框体39整个前表面来张紧设置张紧件37,并且由于框体39前表面整体被张紧件37覆盖,所以在设计上具有时尚感。 [0121] Thus, in a stretched state across the entire front surface of the frame 39 to tension the tensioning member 37 is provided, since the front frame 39 and the entire surface is covered with a tensioning member 37, thus having a sense of fashion in design.

[0122]另外,虽然优选例如将高张力塑料或其他具有弹性的纤维编织成网状,或者织成网状、网眼形状,来形成张紧件37,但也可以只采用织布、合成树脂制罩布和多孔罩布等。 [0122] Further, although the example is preferably a high tension plastic or other elastic fibers knitted into a mesh, or woven into a mesh, a mesh shape, the tensioning member 37 is formed, but may only use woven fabric, a synthetic resin and a porous cover as the cover cloth and the like.

[0123] 以下说明将张紧件37张紧设置于框体39的顺序。 [0123] The following description will tension the tensioning member 37 is provided on the housing 39 of the order.

[0124] 首先,在固定部47的分割部47A留在基部43上、而将连接框架45从主框架40拆下的状态下,克服框架部的弹性力,使主框架40左右的侧部纵框架部40B如图11的细点划线所示,朝向收缩方向发生弹性变形,即,使基部43的切除部44的相对端部44a、44a相互接近的方向。 [0124] First, the fixing portion of the divided portion 47A 47 remain on the base 43, and the connection frame 45 is removed from the state of the main frame 40, the frame portion against the elastic force of the main frame 40 of the left and right longitudinal side portions frame portion 40B thin-dot chain line in FIG. 11, the elastically deformed toward the direction of shrinkage, i.e. the opposite ends of the cutout portion 44 of the base portion 43 44a, 44a approach each other.

[0125] 在此状态下,使张紧件37以从前表面侧向后方卷绕的方式在主框架40的周向边缘上折返,通过将张紧件37周向边缘部上设置的边缘构件37a卡合在主框架40周向边缘上形成的卡合槽部41、42、46a内,以拉伸状态将张紧件37安装在主框架40的周向边缘部上。 [0125] In this state, the tension member 37 from the front to the rear surface side of the folded winding manner on the circumferential edge of the main frame 40, the edge member by a tensioning member 37 is provided to the upper circumferential edge portion 37a engaged in the engagement groove formed in the circumferential portion of the main frame 40 to the upper edge 41,42,46a, the tensioning member in a stretched state in the periphery of the main frame 40 is mounted to an upper edge portion 37.

[0126] 接着,使主框架40的左右侧部纵框架部40B利用回弹力扩张至初始状态,在对张紧件37施加更大的张力的状态下,将连接框架45的后表面组装在基部43前表面上,在将连接框架45的嵌合部46嵌合为其左右端面抵接在切除部44的相对端部44a、44a之间的相对面上的抵接部48a上之后,利用螺栓52对连接框架45上的左右固定部47、47进行固定连接,从而使切除部44的相对端部44a、44a彼此连接。 [0126] Next, the main frame 40 of the left and right side vertical frame portion 40B by using repulsive force expanded to the original state, while applying greater tension to the tensioning member 37, the rear surface of the connecting frame 45 is assembled to the base on a front surface 43, 46 fitted around the end face for connection frame fitting portion 45 after the contact with the opposite end portion 44a of the cut portion 44, between the opposing faces 44a abutting portion 48a abuts with bolts on the right and left fixing portion 4552 connected rigidly connected to the frame 47, 47, so that the cut portion of the opposite end portions 44a 44, 44a are connected to each other.

[0127] 由此,无需复杂加工就可以高效率地张紧设置张紧件37,并且能保持张紧件37的张力均匀地遍布在整个框体39上。 [0127] Thus, without complicated processing can be efficiently disposed tensioned tension member 37, and tension member 37 to maintain tension uniformly spread over the entire frame 39.

[0128] 另外,在连接框架45固定于基部43前表面的情况下,例如,在固定部47和分割部47A的后表面上缘设置向下的爪,并在它们的后表面下缘设置向上的爪,通过将这些爪卡合于基部43前表面,也可以有效防止连接框架45相对于基部43在上下方向上错动。 [0128] Further, in the case where the front surface of the base 43 is fixed to the connecting frame 45, e.g., on a rear surface of the fixing portion 47 and the edge of the divided portion 47A is disposed downward claws, and at their rear edge surface disposed upwardly claws, by which the pawl engages the front surface of the base 43 can be effectively prevented from connecting frame 45 relative to the base 43 in the vertical direction of the dislocation.

[0129] 构成靠背支承框架的靠背支承杆9的上部被枢轴支承并连接在框体39的后部。 [0129] backrest support frame constituting the backrest support rod 9 is pivotally supported by an upper portion and connected at the rear of the housing 39.

[0130] S卩,如图10所示,在主框架40的左右两个侧部纵框架部40B左右方向的内侧边缘的、上下方向大体中间位置上,向后方突出形成有左右一对伸出部59,所述伸出部59在左右方向上彼此相对,并朝向所述空间部38向内侧伸出。 [0130] S Jie, as shown in FIG inner edge 40B of the main frame about the direction of the left and right both side portions of the vertical frame portions 40, 10 substantially vertically intermediate position, projecting rearward are formed a pair of projecting portion 59, the projecting portion 59 in the lateral direction relative to each other, and toward the space portion 38 protrudes inward.

[0131] 如图8所示,为了能从动于靠背36的倚靠动作,靠背支承杆9的左右直立杆9d的上端部连接于所述伸出部59的后端,使直立杆9d以能绕大体朝向左右方向的轴线、且朝向偏离上述轴线规定角度的方式,在期望的界限范围内朝向所有方向转动。 [0131] As shown in FIG. 8, in order from the lean operation to the movable backrest 36, the backrest support rod 9 about the upper end portion of the vertical rods 9d is connected to the rear end of the projecting portion 59, so as to be vertical rods 9d about a generally horizontal direction toward the axis and offset from the axis line direction by a predetermined angle, toward the rotation in all directions within the desired limits of the range.

[0132] 为了使左右伸出部59与框体39的俯视向前呈凹面形状的曲面匹配,使左右伸出部59中心轴朝向内前方倾斜(参照图10、图12),并且为了与框体39的后倾角度匹配,使左右伸出部59朝向前上方倾斜(参照图9)。 [0132] To the left and right projecting portions 59 and the frame 39 is a top curved surface of concave shape matching the forward, left and right projecting portion 59 toward the center axis is inclined forward (see FIG. 10, FIG. 12), and to the frame after the body 39 matches the angle of tilt, the left and right projecting portion 59 is inclined upward toward the front (see FIG. 9).

[0133] 如图17、图18所示,被固定螺钉60固定的凸轴61向前方突出地设置在靠背支承杆9的左右直立杆9d的上端部前表面上,同时将所述凸轴61的前端设置成球体状的滑动接触面构件62,并且大体朝向左右方向的轴孔63贯通形成在所述滑动接触面构件62上。 [0133] 17, 18, the screw 60 is fixed to a fixed projecting shaft 61 projecting forward is provided on the backrest support rod 9 about the upper end of the upright portion of the front surface 9d of the lever, the protrusion shaft 61 the spherical shape of the front end arranged sliding contact surface member 62, and a generally left-right direction toward the shaft hole 63 formed through member 62 on the sliding contact surface.

[0134] 在所述轴孔63内,从滑动接触面构件62的中心部朝向左右两侧形成有锥形孔部64、64,该锥形孔部64、64朝向外侧逐渐扩径。 [0134] within the shaft hole 63 from the central portion of the sliding contact surface of the member 62 toward the left and right sides is formed with a tapered hole portion 64, 64, 64, 64 of the tapered bore portion gradually increased in diameter toward the outside.

[0135] 另一方面,在侧部纵框架部40B的伸出部59上设置有向后方开口的嵌合孔65,所述嵌合孔65与座筒构件67嵌合,在该座筒构件67上朝向后方开设有座孔66。 [0135] On the other hand, the projecting portion 59 provided at the side portion of the vertical frame portion 40B fitted to the rear opening of the holes 65, 67 fitted into the fitting hole 65 and the cylindrical base member, the tubular member holder 67 defines a rearward bore 66.

[0136] 上述凸轴61的滑动接触面构件62从后方插入所述座筒构件67的座孔66内,并使其可以滑动接触,同时使朝向大体左右方向的防脱销68活动嵌入上述轴孔63,通过将所述防脱销68的左右两端部插入并卡止在卡止孔69内,来连接上述凸轴61和座筒构件67,该卡止孔69设置在座筒构件67的左右两侧。 [0136] surface of the sliding contact member 61, the protruding shaft 62 is inserted from the rear within the bore 6667 of cylindrical seat member, and it can be in sliding contact, while the substantially horizontal direction toward the stopper pin fitted into the axial hole 68 activity 63, the stopper pin is inserted through the left and right end portions 68 and locked in the locking hole 69, is connected to the convex cylindrical shaft member 61 and the seat 67, the seat locking hole 69 is provided in the cylindrical member 67 about two side.

[0137] 在座筒构件67的前端突出设置有朝向前方的螺栓轴70,所述螺栓轴70的前端穿过通孔71,并向伸出部59的前表面侧突出,该通孔71贯通上述伸出部59的嵌合孔65底部,此外,从前方使螺母72螺合于突出轴部70a来进行锁紧,从而将上述座筒构件67牢固地固定在上述伸出部59的嵌合孔65内。 [0137] the front end of the seat tube member 67 is provided with a protruding bolt shaft 70 toward the front, the front end of the bolt shaft 70 through the through holes 71, and protruding portions 59 projecting in the front surface side of the through hole 71 passes through the projecting bottom portion 59 of the fitting hole 65, moreover, from the front of the nut 72 is screwed to the projecting portion 70a to the locking shaft, whereby the seat member 67 fixedly secured cylindrical fitting hole 59 of the overhang portion 65.

[0138] 由此,以能绕防脱销68的轴线转动且能朝向偏离上述轴线的方向转动规定角度的方式,将靠背支承杆9的左右直立杆9d的上端部连接于上述伸出部59的后部。 [0138] Accordingly, in the stopper pin can rotate about the axis 68 toward the rotatable and rotationally offset from said axis a predetermined angle, the right and left backrest support rod 9 upper portion of vertical rods 9d is connected to the projecting portion 59 of the rear.

[0139] 在直立杆9d的上端部前表面和伸出部59的后端面之间夹持有缓冲构件73,该缓冲构件73由合成橡胶(二9 ^卜V—、elastomer)等软质弹性体构成。 [0139] cushioning member 73 sandwiched between the upper end of the vertical rods 9d and the rear end portion of the front surface of the projecting portion 59, the buffer member 73 of a synthetic rubber (9 ^ Bu two V-, elastomer) and other soft elastomer constitution.

[0140] 所述缓冲构件73能防止因椅子长期使用而造成的框体39和靠背支承杆9上部的连接部位的磨损或损坏。 [0140] The cushioning member 73 can be prevented due to the frame of the chair caused by long-term use and wear body 39 and the backrest support rod 9 connected to an upper portion of or damage. ` `

[0141] 帽构件74从伸出部59的前方覆盖在从伸出部59前方露出的螺栓轴70的突出轴部70a和螺母72的连结部分上,能防止所述连结部分暴露在外部。 [0141] The cap member 74 projecting from the front portion 59 of the projecting portion covers the connecting shaft portion 70a and the nut 72 exposed from the front protruding portion 59 of the bolt shaft 70 can be prevented in the connecting portion is exposed outside.

[0142] 通过将从所述帽构件74内部中心向后方突出设置的固定杆75压入到开设在螺栓轴70前端的固定孔76内,把所述帽构件74安装在伸出部59的前表面上。 [0142] fixing bars projecting rearward from the center through the interior 74 of the cap member 75 is pressed into the fixing hole 70 opened in the front end of the screw shaft 76, the cap member 74 is mounted to the front of the projecting portion 59 surface.

[0143] 在帽构件74前表面和张紧设置于框体39前表面上的张紧件37的后表面之间,保持期望间隔地设置有间隙a,当倚靠着靠背36时等,即使使用者的后背使张紧件37向后方弯曲,也可以利用上述间隙a使张紧件37不会接触帽构件74,或者利用帽构件74的弹性变形来保持缓冲作用,以使螺栓轴70和螺母72之间的连结部分不会直接接触使用者的后背。 [0143] provided between the rear surface of the frame body 39 on the front surface of the tensioning member 37 is provided to maintain a desired gap interval a, when leaning on the backrest 36 and the like, even if the front surface of the cap member 74 and the tensioning 's back so that the tensioning member 37 is bent backward, the gap may be utilized so that a tension member 37 does not contact the cap member 74, elastic deformation or the cap member 74 to maintain buffer, so that the bolt shaft 70 and coupling between the nut portion 72 does not directly contact with the user's back.

[0144] 本发明并不限定于上述实施方式,也可以采用其他变形方式来实施本发明。 [0144] The present invention is not limited to the above embodiment, another modified embodiment may be employed to practice the present invention.

Claims (11)

1.一种椅子,其特征在于包括: 椅腿; 支座,由所述椅腿支承; 座,由所述支座支承; 靠背支承杆,侧视基本为L形,所述靠背支承杆包括:朝向上方的直立部、朝向前方的朝前部、以及连接设置所述直立部和所述朝前部的弯曲部,所述朝前部的前部安装在所述支座上; 靠背,由所述靠背支承杆的直立部支承;以及保护盖,至少覆盖所述靠背支承杆上的、从弯曲部后表面到下表面的部分, 所述直立部包括左右一对直立杆,左右一对所述直立杆从所述弯曲部呈分叉状地向上方延伸, 所述朝前部包括左右一对朝前杆,左右一对所述朝前杆从所述弯曲部呈分叉状地向前方延伸, 所述保护盖包括弯曲覆盖部、直立覆盖部和朝前覆盖部, 所述弯曲覆盖部覆盖所述弯曲部的后表面,所述直立覆盖部连接设置在所述弯曲覆盖部上,并且覆盖各个所述直立杆的后表 1. A chair, comprising: legs; carrier, supported by the leg; seat, supported by the carrier; backrest support rod, substantially L-shaped side view, the backrest support rod comprising : upward toward the upright portion, the forward portion toward the front, and a curved portion connected to the upright portion is provided and said forward portion, said forward portion of the front portion is mounted on said carrier; backrest by the upright support portions of the backrest support rod; and a protective cover covering at least the backrest support rod, the curved portion from the rear surface to the lower surface of the portion, the upright portion comprises a pair of upright bars, by a pair of said upright bars forked shape extending upward from the curved portion, said forward portion comprises a pair of forward rods, a pair of forward rods form said curved portion from said forward bifurcated shape extends, said protective cover comprising a curved covering portion, the vertical covering portion and a forward covering portion, the curved covering portion to cover the rear surface of the curved portion, the vertical covering portion connected to cover disposed on the curved portion, and after covering each of said upright bars table ,所述朝前覆盖部连接设置在所述弯曲覆盖部上,并且覆盖各个所述朝前杆的下表面。 , The forward covering portion is provided on the curved cover portion, and covers the lower surface of each pair of forward rods.
2.根据权利要求1所述的椅子,其特征在于,所述保护盖包括缓冲件。 2. The chair according to claim 1, wherein said cushioning member comprises a protective cap.
3.根据权利要求1所述的`椅子,其特征在于,所述保护盖由软质合成树脂材料或橡胶制成。 `Chair according to claim 1, wherein said protective cover is made of soft synthetic resin material or rubber.
4.根据权利要求1~3中任一项所述的椅子,其特征在于, 所述靠背支承杆后视呈X形, 所述弯曲覆盖部覆盖所述X形中央的交叉部, 所述弯曲覆盖部的横向宽度大于所述直立杆和/或所述朝前杆的横向宽度,并且所述弯曲覆盖部基本呈球面状地向后方突出。 The chair as claimed in any one of claims 1 to 3, characterized in that, after the backrest support rod view X-shaped, cross-section of the curved cover portion covering the center of the X-shaped, the curved cover portion is greater than the transverse width of said upright rods and / or lateral width of the forward bar and the curved cover portion substantially spherical shape projecting backward.
5.根据权利要求1~3中任一项所述的椅子,其特征在于, 在所述靠背支承杆的所述直立杆上端部后表面上还具有凹部,所述凹部用于安装所述靠背, 在所述凹部内按压嵌入有弹性突起部,所述弹性突起部设置在所述保护盖的各个直立覆盖部的上端部前表面上。 The chair as claimed in any one of claims 1 to 3, characterized in that the backrest support rod in the rear upright rod portion further includes an end surface of recess, the recess portion for mounting the backrest , in the recess portion presses the elastic protrusions fitted, the resilient projection portion is provided on the front surface of the upper end portion of each of the vertical covering portion of the protective cover.
6.根据权利要求1所述的椅子,其特征在于包括: 在所述靠背支承杆后表面和所述保护盖前表面之间的相对部的一部分上形成有空隙部, 所述保护盖的至少与所述空隙部对应的部分由弹性材料形成。 At least after the backrest support rod and the protective cover on the surface portion of the opposing portion between the front surface is formed with a void portion of the protective cover: 6. The chair according to claim 1, characterized by comprising the portion corresponding to the gap portion formed of an elastic material.
7.根据权利要求1所述的椅子,其特征在于包括: 所述靠背包括靠背框架, 所述靠背框架包括:空间部,配置在所述靠背框架的中央;以及带板状的框架构件,张紧设置有用于封闭所述空间部的张紧件, 所述椅子还包括左右一对伸出部,在所述靠背框架左右方向内侧边缘的上下方向基本中间位置上,左右一对所述伸出部以沿左右方向相对的方式向内侧伸出。 7. The chair according to claim 1, comprising: said backrest comprises a backrest frame, said back frame comprising: a space portion is disposed at the center of the backrest frame; and a band-shaped frame member, Zhang tightening the tensioning member is provided for closing the space portion, said chair further comprises a pair of projecting portions, in a substantially intermediate position in the vertical direction inside edge of the backrest frame on the right and left direction, the left and right projecting opposing portion so as to protrude inward in the lateral direction.
8.根据权利要求7所述的椅子,其特征在于,所述伸出部向后方突出。 8. The chair according to claim 7, wherein said projecting portion projecting rearward.
9.根据权利要求7所述的椅子,其特征在于,所述靠背支承杆的上部安装在所述伸出部的后表面上。 9. The chair according to claim 7, wherein an upper portion of the backrest support rod is mounted on the rear surface of the projecting portion.
10.根据权利要求9所述的椅子,其特征在于,由朝向左右方向的枢轴将所述靠背支承杆的上部枢轴安装在所述伸出部上,使所述靠背支承杆的上部能在规定的界限范围内全向转动。 10. A chair according to claim 9, characterized in that the left and right pivot toward the upper portion of the backrest support rod is pivotally mounted on the projecting portion, the upper portion of the backrest support rod can omni-directional range within predetermined limits.
11.根据权利要求9或10所述的椅子,其特征在于,在所述伸出部和所述靠背支承杆的上部之间,夹持有缓冲构件, 所述缓冲构件包括软质弹性体。 11. A chair according to claim 9 or claim 10, wherein said projecting portion between the upper and the backrest support rod, sandwiched cushioning member, a cushioning member comprising a soft elastomer.
CN 200980140462 2008-10-16 2009-09-18 chair CN102176847B (en)

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JP2008267410A JP5378747B2 (en) 2008-10-16 2008-10-16 Chair
JP2008-267410 2008-10-16
JP2009-042050 2009-02-25
JP2009042050A JP5543117B2 (en) 2009-02-25 2009-02-25 Backrest apparatus of the chair
PCT/JP2009/066329 WO2010044331A1 (en) 2008-10-16 2009-09-18 Chair

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WO2010044331A1 (en) 2010-04-22
KR20110084241A (en) 2011-07-21
US20110198907A1 (en) 2011-08-18
EP2347679A4 (en) 2012-03-07
EP2347679A1 (en) 2011-07-27
EP2347679B1 (en) 2013-03-13
CN102176847A (en) 2011-09-07

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