JP6210633B2 - Chair - Google Patents

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Publication number
JP6210633B2
JP6210633B2 JP2013190952A JP2013190952A JP6210633B2 JP 6210633 B2 JP6210633 B2 JP 6210633B2 JP 2013190952 A JP2013190952 A JP 2013190952A JP 2013190952 A JP2013190952 A JP 2013190952A JP 6210633 B2 JP6210633 B2 JP 6210633B2
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substrate
wall
projecting
string
side wall
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JP2015054213A (en
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益永　浩
浩 益永
裕一郎 ▲高▼木
裕一郎 ▲高▼木
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Okamura Corp
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Okamura Corp
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Priority to JP2013190952A priority Critical patent/JP6210633B2/en
Priority to EP14844352.6A priority patent/EP3045086B1/en
Priority to CN201480049836.9A priority patent/CN105530839B/en
Priority to US14/917,919 priority patent/US20160220036A1/en
Priority to PCT/JP2014/072117 priority patent/WO2015037421A1/en
Publication of JP2015054213A publication Critical patent/JP2015054213A/en
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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
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/02—Upholstery attaching means
    • A47C31/023—Upholstery attaching means connecting upholstery to frames, e.g. by hooks, clips, snap fasteners, clamping means or the like
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/24—Upholstered seats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B68—SADDLERY; UPHOLSTERY
    • B68G—METHODS, EQUIPMENT, OR MACHINES FOR USE IN UPHOLSTERING; UPHOLSTERY NOT OTHERWISE PROVIDED FOR
    • B68G7/00—Making upholstery
    • B68G7/12—Other elements specially adapted for fastening, fixing, or finishing, in upholstery work

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Connection Of Plates (AREA)

Description

この発明は、座体や背凭れ等の荷重支持体の張材の取り付け部を改良した椅子に関するものである。   The present invention relates to a chair having an improved attachment portion for a tension member of a load support such as a seat and a backrest.

事務用等として用いられる椅子の座体は、通常、骨格部を成す基板の上部にウレタン等のクッション材が配置され、クッション材の外側面から基板の外側縁部にかけてがシート状の張材によって覆われている。
この種の椅子の張材の取り付けに際しては、汚損時等に張材を交換性し易いことや、張材の全域に安定した張力を付与し易いことから、締付紐条を用いて張材の周縁部を基板の下面側で窄め、それによって張材をクッション材と基板に固定する手法が多く用いられている（例えば、特許文献１，２参照）。 A chair seat used for office work or the like is usually provided with a cushion material such as urethane on the upper part of the substrate constituting the skeleton part, and a sheet-like tension material extending from the outer surface of the cushion material to the outer edge of the substrate. Covered.
When attaching this type of chair upholstery material, it is easy to replace the upholstery material at the time of fouling, etc., and it is easy to give stable tension to the entire area of the upholstery material. A technique is often used in which the peripheral edge of the substrate is narrowed on the lower surface side of the substrate, thereby fixing the tension member to the cushion material and the substrate (see, for example, Patent Documents 1 and 2).

特許文献１，２に記載の椅子は、クッション材の外側面と基板の外周縁部とを包み込む張材の周縁部に袋状の挿通孔が設けられ、その挿通孔に締付紐条が挿通されて、締付紐条の端部同士が基板の下面側で結束されるようになっている。この椅子の下面側には、締付紐条の基板中心側への変位を規制する係止突起が設けられ、それによって張材の位置ずれが防止されている。
この椅子においては、締付紐条を基板の下面側でループ状に締め込んで端部同士を結束することにより、張材をクッション材と基板に容易に取り付けることができ、しかも、締付紐条の結束部の長さを管理することにより、張材に作用する張力のばらつきを少なくできるという利点がある。 In the chairs described in Patent Documents 1 and 2, a bag-like insertion hole is provided in the peripheral portion of the tension member that wraps the outer side surface of the cushion material and the outer peripheral portion of the substrate, and a tightening string is inserted into the insertion hole. Thus, the ends of the fastening string are bound together on the lower surface side of the substrate. On the lower surface side of the chair, a locking projection for restricting the displacement of the fastening string toward the center of the substrate is provided, thereby preventing the displacement of the tension material.
In this chair, the fastening cord can be easily attached to the cushion material and the substrate by fastening the fastening cords in a loop shape on the lower surface side of the substrate and binding the ends together, and the fastening cord. By managing the length of the bundling portion of the strip, there is an advantage that variation in tension acting on the tension material can be reduced.

特許第３７２８５７６号公報Japanese Patent No. 3728576 特許第４２５５６７０号公報Japanese Patent No. 4255670

特許文献１，２に記載の椅子においては、内側に窄まろうとする締付紐条を受け止める方向のみに係止突起が形成されている。ところが、実際に張材をクッション材と基板とに張設してみると、締付紐条によって締め込まれる張材の周縁部が内側に窄まろうとする方向ばかりでなく、外側に拡がろうとする方向にも変位することが判明した。
この原因としては、例えば、基板やクッション材が平面視略矩形状である場合に、張材の周縁部が締付紐条によって締め込まれると、張材の周縁部上の基板やクッション材の角部付近に対応する部位が締付紐条によって最も強く引っ張られるが、張材の周縁部上の隣接する角部間の直線部付近に対応する部位では引っ張り力が相対的に弱くなることから、その部位が張材の張力によって部分的に外側に拡がろうとするように変位するものと予測される。 In the chairs described in Patent Documents 1 and 2, the locking protrusions are formed only in the direction of receiving the tightening string that is to be narrowed inward. However, when the tension material is actually stretched between the cushioning material and the substrate, not only the direction in which the peripheral edge of the tension material tightened by the tightening string tends to squeeze inward, but also spread outward. It has been found that the direction is also displaced.
As a cause of this, for example, when the substrate or cushion material is substantially rectangular in plan view, if the peripheral portion of the tension member is tightened by the fastening string, the substrate or cushion material on the peripheral portion of the tension member is The part corresponding to the vicinity of the corner is most strongly pulled by the fastening string, but the tensile force is relatively weak in the part corresponding to the vicinity of the straight part between the adjacent corners on the peripheral edge of the tension member. The part is expected to be displaced so as to partially spread outward due to the tension of the tension member.

そこでこの発明は、締付紐条と張材の周縁部の変位を適切に規制できるようにし、張材の位置ずれを抑制することのできる椅子を提供しようとするものである。   Therefore, the present invention is intended to provide a chair that can appropriately regulate the displacement of the fastening string and the peripheral edge portion of the upholstery material and suppress the displacement of the upholstery material.

請求項１に係る椅子では、上記課題を解決するために以下の構成を採用した。
骨格部を成す基板と、該基板の表面側に配置されるクッション材と、少なくとも前記クッション材の外側面と前記基板の外周縁部とにかけて覆う張材と、該張材の周縁部に挿通され、該張材が前記クッション材の外側面と前記基板の外周縁部を覆った状態で、前記基板の裏面側で引き締められて端部同士を結束される締付紐条と、を有する荷重支持体を備えた椅子において、前記基板には、引き締められた前記締付紐条の基板中心方向の変位を規制する第１の係止手段と、引き締められた前記締付紐条の基板外側方向の変位を規制する第２の係止手段と、が設けられ、前記第１の係止手段は、前記基板の裏面から裏方に突出する第１側壁と、該第１側壁の突出端の近傍から前記基板の外側方向に突出する第１突出壁と、を備え、前記第２の係止手段は、前記基板の裏面から裏方に突出する第２側壁と、該第２側壁の突出端の近傍から前記基板の内側方向に突出する第２突出壁と、を備え、前記基板の裏面には、当該基板の周方向に連続する凹溝が形成され、前記第１側壁は前記凹溝の内側の壁によって構成され、前記第２側壁は前記凹溝の外側の壁によって構成されていることを特徴とするものである。
これにより、張材がクッション材の外側面と基板の外周縁部を覆った状態で、張材の周縁部に挿通された締付紐条が基板の裏面側で引き締められると、締付紐条の基板中心方向の変位が第１の係止手段によって規制されるとともに、締付紐条の基板外側方向の変位が第２の係止手段によって規制される。したがって、張材の周縁部の内側に窄まろうとする変位だけでなく、外側に拡がろうとする変位も規制されるようになる。
この場合、締付紐条や張材の周縁部は、第１突出壁と第２突出壁によって確実に抜けを規制される。また、締付紐条や張材の周縁部が、第１突出壁や第２突出壁に直接当接していない場合にも、締付紐条や張材の変位は第１側壁や第２側壁によって規制される。
また、この場合、張材の取付時には、締付紐条や張材の周縁部を基板の周方向に連続する凹溝内に押し込みながら、締付紐条や張材の周縁部を第１突出壁や第２突出壁の内側に配置することができる。したがって、張材の取り付けを容易に行うことができる。また、締付紐条や張材の周縁部が基板の周方向に連続する凹溝内に配置されるため、張材はより捲れにくくなる。 The chair according to claim 1 employs the following configuration in order to solve the above problems.
A substrate forming a skeleton, a cushion material disposed on the surface side of the substrate, a tension material covering at least the outer surface of the cushion material and the outer peripheral edge of the substrate, and a peripheral edge of the tension material. The tension support is provided with a tightening string that is tightened on the back surface side of the substrate to bind the end portions together in a state where the tension material covers the outer side surface of the cushion material and the outer peripheral edge of the substrate. In the chair provided with a body, the board includes a first locking means for restricting displacement of the tightened string in the direction of the center of the board, and the tightened string in the direction toward the outside of the board. and second locking means for regulating the displacement is provided, et al is, the first locking means includes a first side wall projecting backstage from the back surface of the substrate, from the vicinity of the projecting end of the first side wall A first projecting wall projecting outward of the substrate, and the second engagement The means includes a second side wall projecting backward from the back surface of the substrate, and a second projecting wall projecting inward of the substrate from the vicinity of the projecting end of the second side wall. A concave groove continuous in the circumferential direction of the substrate is formed, the first side wall is constituted by an inner wall of the concave groove, and the second side wall is constituted by an outer wall of the concave groove. It is a feature.
As a result, when the fastening string inserted through the peripheral edge of the tension member is tightened on the back side of the substrate with the tension material covering the outer side surface of the cushion material and the outer peripheral edge of the substrate, the tightening string The displacement in the substrate center direction is regulated by the first locking means, and the displacement of the fastening string in the substrate outer direction is regulated by the second locking means. Therefore, not only the displacement that tends to squeeze inside the peripheral edge of the tension member, but also the displacement that tries to spread outward is regulated.
In this case, the peripheral portions of the tightening string and the tension member are reliably regulated by the first projecting wall and the second projecting wall. In addition, even when the peripheral portion of the tightening cord or the tension member is not in direct contact with the first projecting wall or the second projecting wall, the displacement of the tightening cord or the tension material is the first side wall or the second side wall. Regulated by.
In this case, when the tension member is attached, the peripheral portion of the tightening string or the tension member is pushed into the concave groove continuous in the circumferential direction of the substrate while the peripheral portion of the tightening string or the tension member is first projected. It can arrange | position inside a wall or a 2nd protrusion wall. Therefore, the tension member can be easily attached. Moreover, since the peripheral part of a fastening string or a tension material is arrange | positioned in the ditch | groove which continues in the circumferential direction of a board | substrate, a tension material becomes more difficult to twist.

前記基板は、四隅に角部を、角部同士の間に直線部を有する略矩形状に形成され、前記角部には前記第１係止手段が設けられ、少なくとも一部の前記直線部には、前記第２の係止手段が設けられるようにしても良い。
この場合、張材がクッション材の外側面と基板の外周縁部を覆った状態で、張材の周縁部に挿通された締付紐条が基板の裏面側で引き締められると、基板の角部では締付紐条が内側に窄まる方向に変位しようとし、基板の直線部の一部では張材が外側に拡がる方向に変位しようとする。このとき、締付紐条の各変位が第１の係止手段と第２の係止手段によって規制される。したがって、基板のどの部位においても張材の捲れを適正に防止することができる。 The substrate is formed in a substantially rectangular shape having corners at four corners and straight portions between the corners, and the corners are provided with the first locking means, and at least some of the straight portions are formed on the straight portions. The second locking means may be provided.
In this case, with the tension material covering the outer side surface of the cushion material and the outer peripheral edge of the substrate, when the tightening string inserted through the peripheral edge of the tension material is tightened on the back side of the substrate, the corner of the substrate Then, the fastening string tends to be displaced in a direction in which it is narrowed inward, and in a part of the straight portion of the substrate, it is attempted to be displaced in a direction in which the tension material spreads outward. At this time, each displacement of the fastening string is regulated by the first locking means and the second locking means. Therefore, it is possible to appropriately prevent the tension material from being twisted at any part of the substrate.

前記第１突出壁と前記第２突出壁とは、前記締付紐条の延出方向に離間して相互に隣り合って配置されるようにすることが望ましい。
この場合、第１突出壁と第２突出壁の延出長さを延ばしても第１突出壁と第２突出壁の先端部同士が接触しなくなる。このため、第１突出壁と第２突出壁の延出長さを充分に延ばし、締付紐条や張材の周縁部を取り付けるときに、第１突出壁と第２突出壁を撓み変形させ易くすることができる。したがって、これによって張材の取り付けを容易にすることができる。 Preferably, the first projecting wall and the second projecting wall are arranged adjacent to each other with a distance in the extending direction of the fastening string.
In this case, even if the extending lengths of the first projecting wall and the second projecting wall are extended, the tips of the first projecting wall and the second projecting wall do not contact each other. For this reason, when the extension length of the 1st protrusion wall and the 2nd protrusion wall is fully extended, and a fastening string and the peripheral part of a tension material are attached, the 1st protrusion wall and the 2nd protrusion wall are bent and deformed. Can be made easier. Accordingly, this makes it easy to attach the tension material.

請求項４に係る椅子は、骨格部を成す基板と、該基板の表面側に配置されるクッション材と、少なくとも前記クッション材の外側面と前記基板の外周縁部とにかけて覆う張材と、該張材の周縁部に挿通され、該張材が前記クッション材の外側面と前記基板の外周縁部を覆った状態で、前記基板の裏面側で引き締められて端部同士を結束される締付紐条と、を有する荷重支持体を備えた椅子において、前記基板には、引き締められた前記締付紐条の基板中心方向の変位を規制する第１の係止手段と、引き締められた前記締付紐条の基板外側方向の変位を規制する第２の係止手段と、が設けられ、前記第１の係止手段は、前記基板の裏面から裏方に突出する第１側壁と、該第１側壁の突出端の近傍から前記基板の外側方向に突出する第１突出壁と、を備え、前記第２の係止手段は、前記基板の裏面から裏方に突出する第２側壁と、該第２側壁の突出端の近傍から前記基板の内側方向に突出する第２突出壁と、を備え、前記第１突出壁と前記第２突出壁とは、前記締付紐条の延出方向に離間して相互に隣り合って配置され、隣接して設けられる前記第１突出壁と前記第２突出壁とは、前記第１側壁と前記第２側壁の前記締付紐条の延出方向と交差する方向の離間幅のほぼ半分の長さとなる位置まで各先端部が延出していることを特徴とするものである。
この場合、張材の周縁部と締付紐条の配置される領域の抜け方向の広い範囲が第１突出壁と第２突出壁によって覆われるため、張材の周縁部の脱落を有効に防止することができる。また、張材を第１側壁と第２側壁の間に入れ込む作業も、第１突出壁や第２突出壁によって阻害されにくくなる。 The chair according to claim 4 includes a base plate forming a skeleton, a cushion material disposed on a surface side of the base plate, a tension material covering at least an outer side surface of the cushion material and an outer peripheral edge portion of the base plate, Tightening that is inserted into the peripheral edge of the tension member and is tightened on the back side of the substrate to bind the ends together in a state where the tension material covers the outer peripheral surface of the cushion material and the outer peripheral edge of the substrate. In the chair provided with a load support body having a string, the substrate includes a first locking means for restricting displacement of the tightened string in the center direction of the substrate, and the tightened tightening. A second locking means for restricting the displacement of the attached string in the direction of the outside of the substrate, and the first locking means includes a first side wall protruding rearward from the back surface of the substrate, and the first A first projecting wall projecting outward from the vicinity of the projecting end of the side wall; The second locking means includes a second side wall protruding backward from the back surface of the substrate, and a second protruding wall protruding inward of the substrate from the vicinity of the protruding end of the second side wall. The first projecting wall and the second projecting wall are disposed adjacent to each other in the extending direction of the fastening cord, and the first projecting wall provided adjacent to the first projecting wall and the second projecting wall; The second projecting wall is such that each tip portion extends to a position that is approximately half the length of the separation width of the first side wall and the second side wall in the direction intersecting the extending direction of the fastening string . It is characterized by this.
In this case, since the wide range in the pulling direction of the peripheral portion of the tension member and the region where the fastening string is disposed is covered by the first protruding wall and the second protruding wall, the peripheral portion of the tension member is effectively prevented from falling off. can do. Moreover, the operation | work which inserts a tension material between a 1st side wall and a 2nd side wall becomes difficult to be inhibited by the 1st protrusion wall and the 2nd protrusion wall.

請求項５に係る椅子は、骨格部を成す基板と、該基板の表面側に配置されるクッション材と、少なくとも前記クッション材の外側面と前記基板の外周縁部とにかけて覆う張材と、該張材の周縁部に挿通され、該張材が前記クッション材の外側面と前記基板の外周縁部を覆った状態で、前記基板の裏面側で引き締められて端部同士を結束される締付紐条と、を有する荷重支持体を備えた椅子において、前記基板には、引き締められた前記締付紐条の基板中心方向の変位を規制する第１の係止手段と、引き締められた前記締付紐条の基板外側方向の変位を規制する第２の係止手段と、が設けられ、前記第１の係止手段は、前記基板の裏面から裏方に突出する第１側壁と、該第１側壁の突出端の近傍から前記基板の外側方向に突出する第１突出壁と、を備え、前記第２の係止手段は、前記基板の裏面から裏方に突出する第２側壁と、該第２側壁の突出端の近傍から前記基板の内側方向に突出する第２突出壁と、を備え、前記第１突出壁と前記第２突出壁とは、先端部が相互に対向する位置に配置されていることを特徴とするものである。
この場合、第１突出壁と第２突出壁の先端部が対向して配置されるため、締付紐条や張材の周縁部の変位方向が変化することがあっても、締付紐条や張材の周縁部は第１突出壁と第２突出壁のいずれか一方によって変位を確実に規制される。 The chair according to claim 5 includes a base plate forming a skeleton part, a cushion material disposed on the surface side of the base board, a tension material covering at least an outer side surface of the cushion material and an outer peripheral edge portion of the base board, Tightening that is inserted into the peripheral edge of the tension member and is tightened on the back side of the substrate to bind the ends together in a state where the tension material covers the outer peripheral surface of the cushion material and the outer peripheral edge of the substrate. In the chair provided with a load support body having a string, the substrate includes a first locking means for restricting displacement of the tightened string in the center direction of the substrate, and the tightened tightening. A second locking means for restricting the displacement of the attached string in the direction of the outside of the substrate, and the first locking means includes a first side wall protruding rearward from the back surface of the substrate, and the first A first projecting wall projecting outward from the vicinity of the projecting end of the side wall; The second locking means includes a second side wall protruding backward from the back surface of the substrate, and a second protruding wall protruding inward of the substrate from the vicinity of the protruding end of the second side wall. wherein the the first protruding wall and the second protruding walls, and is characterized in that the tip is disposed at a position facing each other.
In this case, since the distal end portions of the first projecting wall and the second projecting wall are arranged to face each other, even if the displacement direction of the tightening cord or the peripheral edge of the tension member may change, the tightening cord Displacement of the peripheral portion of the tension member is reliably regulated by either the first protruding wall or the second protruding wall.

請求項６に係る椅子は、骨格部を成す基板と、該基板の表面側に配置されるクッション材と、少なくとも前記クッション材の外側面と前記基板の外周縁部とにかけて覆う張材と、該張材の周縁部に挿通され、該張材が前記クッション材の外側面と前記基板の外周縁部を覆った状態で、前記基板の裏面側で引き締められて端部同士を結束される締付紐条と、を有する荷重支持体を備えた椅子において、前記基板には、引き締められた前記締付紐条の基板中心方向の変位を規制する第１の係止手段と、引き締められた前記締付紐条の基板外側方向の変位を規制する第２の係止手段と、が設けられ、前記第１の係止手段は、前記基板の裏面から裏方に突出する第１側壁と、該第１側壁の突出端の近傍から前記基板の外側方向に突出する第１突出壁と、を備え、前記第２の係止手段は、前記基板の裏面から裏方に突出する第２側壁と、該第２側壁の突出端の近傍から前記基板の内側方向に突出する第２突出壁と、を備え、前記第１突出壁と前記第２突出壁とは、先端部の一部が相互に対向しかつ残余の一部が前記締付紐条の延出方向に離間して配置されていることを特徴とするものである。
この場合、締付紐条や張材の周縁部の変位方向が変化することがあっても、締付紐条や張材の周縁部は第１突出壁と第２突出壁のいずれか一方によって変位を確実に規制される。また、第１突出壁と第２突出壁は先端部の一部のみが相互に対向し、残余の一部が締付紐条の延出方向に離間するように設けられているため、第１突出壁と第２突出壁が締付紐条の延出方向に沿って長く延出することになる。このため、締付紐条や張材の周縁部を取り付けるときに、第１突出壁と第２突出壁を撓み変形させ易くなる。したがって、これによって張材の取り付けを容易にすることができる。 The chair according to claim 6 comprises a base plate forming a skeleton part, a cushion material disposed on the surface side of the base board, a tension material covering at least the outer surface of the cushion material and the outer peripheral edge of the base board, Tightening that is inserted into the peripheral edge of the tension member and is tightened on the back side of the substrate to bind the ends together in a state where the tension material covers the outer peripheral surface of the cushion material and the outer peripheral edge of the substrate. In the chair provided with a load support body having a string, the substrate includes a first locking means for restricting displacement of the tightened string in the center direction of the substrate, and the tightened tightening. A second locking means for restricting the displacement of the attached string in the direction of the outside of the substrate, and the first locking means includes a first side wall protruding rearward from the back surface of the substrate, and the first A first projecting wall projecting outward from the vicinity of the projecting end of the side wall; The second locking means includes a second side wall protruding backward from the back surface of the substrate, and a second protruding wall protruding inward of the substrate from the vicinity of the protruding end of the second side wall. wherein the the first protruding wall and the second projecting wall, a part of the front end portion is disposed a portion of residual One only facing each other at a distance from each other in the extending direction of the cord Article tightening It is characterized by this.
In this case, even if the displacement direction of the peripheral portion of the tightening cord or the tension member may change, the peripheral portion of the tightening cord or the tension member is caused by either the first protruding wall or the second protruding wall. Displacement is reliably regulated. In addition, the first projecting wall and the second projecting wall are provided so that only a part of the tip part is opposed to each other and the remaining part is separated in the extending direction of the fastening string. The projecting wall and the second projecting wall extend long along the extending direction of the fastening string. For this reason, it becomes easy to bend and deform the first projecting wall and the second projecting wall when attaching the fastening string or the peripheral portion of the tension member. Accordingly, this makes it easy to attach the tension material.

この発明によれば、張材の周縁部の内側に窄まろうとする変位だけでなく、外側に拡がろうとする変位も適切に規制できるため、張材の位置ずれをより確実に抑制することができる。   According to the present invention, not only the displacement that tends to squeeze inside the peripheral edge of the tension member but also the displacement that spreads outward can be appropriately regulated, so that the displacement of the tension member can be more reliably suppressed. it can.

この発明の第１の実施形態の椅子の側面図である。It is a side view of the chair of 1st Embodiment of this invention. この発明の第１の実施形態の椅子の脚部を取り去った状態での斜視図である。It is a perspective view in the state where the leg part of the chair of a 1st embodiment of this invention was removed. この発明の第１の実施形態の基板の下面図である。It is a bottom view of the board | substrate of 1st Embodiment of this invention. この発明の第１の実施形態の基板を下方の左斜め前方側から見た斜視図である。It is the perspective view which looked at the board | substrate of 1st Embodiment of this invention from the downward diagonal left front side. この発明の第１の実施形態の座体の図３のＶ部分の拡大図である。It is an enlarged view of the V section of FIG. 3 of the seat body of 1st Embodiment of this invention. この発明の第１の実施形態の座体の図３のＶＩ−ＶＩ断面に対応する断面図である。It is sectional drawing corresponding to the VI-VI cross section of FIG. 3 of the seat of 1st Embodiment of this invention. この発明の第１の実施形態の座体の図３のＶＩＩ−ＶＩＩ断面に対応する断面図である。It is sectional drawing corresponding to the VII-VII cross section of FIG. 3 of the seat of 1st Embodiment of this invention. この発明の第２の実施形態の基板の要部の下面図である。It is a bottom view of the principal part of the board | substrate of the 2nd Embodiment of this invention. この発明の第３の実施形態の基板の要部の下面図である。It is a bottom view of the principal part of the board | substrate of the 3rd Embodiment of this invention. この発明の第４の実施形態の基板の要部の下面図である。It is a bottom view of the principal part of the board | substrate of the 4th Embodiment of this invention.

以下、この発明の実施形態を図面に基づいて説明する。なお、以下の説明においては、椅子に正規姿勢で着座した人の正面が向く図中矢印ＦＲの指す向きを「前」と呼び、それと逆側の向きを「後」と呼ぶものとする。また、「上」，「下」と「左」，「右」については、椅子に正規姿勢で着座した人の上方の図中矢印ＵＰの指す向きを「上」、それと逆側の向きを「下」と呼び、椅子１に正規姿勢で着座した人の左側の図中矢印ＬＨの指す向きを「左」、それと逆側の向きを「右」と呼ぶものとする。   Embodiments of the present invention will be described below with reference to the drawings. In the following description, the direction indicated by the arrow FR in the figure facing the front of the person seated in the chair in a regular posture is referred to as “front”, and the opposite direction is referred to as “rear”. For “upper”, “lower”, “left”, and “right”, the direction indicated by the arrow UP in the figure above the person sitting on the chair in a regular posture is “up” and the opposite direction is “ The direction indicated by the arrow LH on the left side of the person sitting in the normal posture on the chair 1 is called “left”, and the direction opposite to that is called “right”.

最初に、図１〜図７に示す第１の実施形態について説明する。
図１は、この実施形態の椅子１の全体構成を示す側面図であり、図２は、一部部品を取り去った椅子１を斜め下方から見た斜視図である。
これらの図に示すように、この実施形態の椅子１は、フロアＦ上に載置される脚部２と、脚部２の上端に設置されるボックス状の支基３と、着座者が着座する座体４と、支基３の上面に取り付けられ座体４を支持する座受部材５と、支基３から後部上方側に延出して座体４に着座した着座者の背中を支持する背凭れ部６と、を備えている。
脚部２は、キャスタ７ａ付きの多岐脚７と、多岐脚７の中央部より起立し昇降機構であるガススプリングを内蔵する脚柱８と、を備え、脚柱８の上端部に支基３が水平方向に回転可能に取り付けられている。支基３には、脚柱８の昇降調整機構と背凭れ部６の傾動調整機構が内蔵されている。背凭れ部６は、側面視略Ｌ字状の背凭れ支持フレーム９と、背凭れ支持フレーム９の後上部の前面に取り付けられ座体４に着座した着座者の背中を直接支持する背凭れ本体１０と、を備え、背凭れ支持フレーム９の前部下端が支基３内の傾動調整機構に連結されている。
なお、図１，図２中符号１１は、支基３上における背凭れ支持フレーム９の枢支軸であり、符号１２は、支基３の側面に突設された傾動調整機構の操作ノブである。また、図１中の符号９０は、追加部品として座体４の左右両側の下面に取り付けられる肘掛けである。 First, the first embodiment shown in FIGS. 1 to 7 will be described.
FIG. 1 is a side view showing the overall configuration of the chair 1 of this embodiment, and FIG. 2 is a perspective view of the chair 1 with some parts removed, as seen from obliquely below.
As shown in these drawings, a chair 1 according to this embodiment includes a leg 2 placed on a floor F, a box-shaped support base 3 installed at the upper end of the leg 2, and a seated person. A seat body 4 that is attached to the upper surface of the support base 3 and supports the seat body 4, and supports the back of a seated person that extends from the support base 3 to the rear upper side and is seated on the seat body 4. And a backrest portion 6.
The leg 2 includes a multi-leg 7 with casters 7 a and a pedestal 8 that stands up from the center of the multi-leg 7 and incorporates a gas spring as a lifting mechanism, and has a support base 3 at the upper end of the pedestal 8. Is mounted so as to be rotatable in the horizontal direction. The support base 3 incorporates an elevation adjustment mechanism for the pedestal column 8 and a tilt adjustment mechanism for the backrest 6. The backrest 6 includes a backrest support frame 9 having a substantially L shape in side view, and a backrest body that directly supports the back of a seated person attached to the front surface of the backrest support frame 9 and seated on the seat 4. 10, and the lower end of the front portion of the back support frame 9 is coupled to the tilt adjustment mechanism in the support base 3.
1 and 2, reference numeral 11 is a pivot shaft of the backrest support frame 9 on the support base 3, and reference numeral 12 is an operation knob of a tilt adjustment mechanism protruding from the side surface of the support base 3. is there. Moreover, the code | symbol 90 in FIG. 1 is an armrest attached to the lower surface of the both sides of the seat body 4 as an additional component.

図３は、座体４の下面図である。この実施形態では、座体４がこの実施形態の椅子１の荷重支持体を構成している。
座体４は、骨格部を成す基板１３と、基板１３の上部に取り付けられるウレタン等から成るクッション材１４と、クッション材１４の外側面から基板１３の外周縁部に掛けてを覆う張材１５と、を備えている。なお、図３においては、張材１５は図示の都合上仮想線で記載してある。 FIG. 3 is a bottom view of the seat body 4. In this embodiment, the seat body 4 constitutes a load support body of the chair 1 of this embodiment.
The seat body 4 includes a base plate 13 that forms a skeleton, a cushion material 14 made of urethane or the like attached to the top of the base plate 13, and a tension member 15 that covers the outer peripheral surface of the base plate 13 from the outer surface of the cushion material 14. And. In FIG. 3, the upholstery material 15 is indicated by a virtual line for convenience of illustration.

図４は、基板１３を斜め下方から見た斜視図である。
基板１３は、弾性を有する合成樹脂によって形成され、上面視では四隅が丸みを帯びた略長方形状とされている。即ち、基板１３は、四隅に丸みを帯びた角部１３ａが設けられ、隣接する角部１３ａ同士の間にそれぞれ直線部１３ｂが配置された外形形状とされている。基板１３は、後辺の中央領域を除く周縁部の下面に、補強リブを兼ねる連続した遮蔽壁１６が下方に向かって突設されている。この遮蔽壁１６は、基板１３の下面が側方から見えるのを隠すとともに、基板１３全域の過大な撓み変形を規制するように機能する。また、基板１３の下面の遮蔽壁１６よりも内側領域には、前後方向に延出する突出高さの低い複数の補強リブ２３…がほぼ等間隔に突設されている。 FIG. 4 is a perspective view of the substrate 13 as viewed obliquely from below.
The substrate 13 is made of a synthetic resin having elasticity, and has a substantially rectangular shape with rounded four corners when viewed from above. That is, the substrate 13 has an outer shape in which rounded corner portions 13a are provided at four corners, and linear portions 13b are arranged between the adjacent corner portions 13a. In the substrate 13, a continuous shielding wall 16 that also serves as a reinforcing rib protrudes downward from the lower surface of the peripheral portion excluding the central region of the rear side. The shielding wall 16 functions to conceal that the lower surface of the substrate 13 is visible from the side and restrict excessive deformation of the entire region of the substrate 13. A plurality of reinforcing ribs 23 extending in the front-rear direction and having a low projecting height are provided at substantially equal intervals in the inner region of the lower surface of the substrate 13 than the shielding wall 16.

基板１３は、支基３上に固定された座受部材５に前後スライド可能に保持されている。図２に示すように、基板１３の左側の側部には、座体４の前後位置をロックするためのロックレバー２１が傾動可能に取り付けられている。座受部材５には、複数のロック孔３５が形成されており、ロックレバー２１の先端部が任意のロック孔３５に嵌入することによって基板１３のスライド位置がロックされるようになっている。このロックレバー２１は、操作者が把持する解除操作ノブ２２が基端側に一体に形成されている。   The substrate 13 is held by a seat receiving member 5 fixed on the support base 3 so as to be slidable back and forth. As shown in FIG. 2, a lock lever 21 for locking the front-rear position of the seat body 4 is attached to the left side portion of the substrate 13 so as to be tiltable. A plurality of lock holes 35 are formed in the seat receiving member 5, and the sliding position of the substrate 13 is locked when the tip end portion of the lock lever 21 is fitted into an arbitrary lock hole 35. The lock lever 21 is formed integrally with a release operation knob 22 held by an operator on the base end side.

図５は、図３のＶ部分を拡大して示した図であり、図６，図７は、図３のＶＩ−ＶＩ断面とＶＩＩ−ＶＩＩ断面に対応する断面を示した図である。
基板１３の周縁部の下面側に回り込んで配置される張材１５の周縁部１５ａには、周域方向に沿う袋状の挿通孔部１７が設けられている。挿通孔部１７は、張材１５の周縁部１５ａの周方向の一部で破断され、その破断部分から締付紐条１８が挿通されている。締付紐条１８は、張材１５がクッション材１４の外側面から基板１３の外周縁部に掛けてを包み込んだ状態において、張材１５の周縁部１５ａを基板１３の下面側で締め込み、その状態で両端部１８ａ，１８ａが所定の張力で結束される。 5 is an enlarged view of a V portion of FIG. 3, and FIGS. 6 and 7 are cross-sectional views corresponding to the VI-VI cross section and the VII-VII cross section of FIG.
A bag-shaped insertion hole 17 is provided along the circumferential direction in the peripheral portion 15 a of the upholstery material 15 that is arranged around the lower surface side of the peripheral portion of the substrate 13. The insertion hole portion 17 is broken at a part in the circumferential direction of the peripheral edge portion 15a of the tension member 15, and the tightening string 18 is inserted from the broken portion. In the state where the tension material 15 wraps the tension material 15 from the outer side surface of the cushion material 14 to the outer peripheral edge portion of the substrate 13, the fastening string 18 is tightened on the lower surface side of the substrate 13. In this state, both end portions 18a and 18a are bound with a predetermined tension.

ここで、基板１３の外周縁部の下面には、周方向に沿う凹溝１９が形成され、その凹溝１９内に張材１５の周縁部１５ａが締付紐条１８とともに嵌入されるようになっている。凹溝１９は、基板１３の下面から下方に突出する環状の第１側壁２４と、その第１側壁２４の外側に離間した位置において基板１３の下面から下方に突出する環状の第２側壁２５と、によって形成されている。この実施形態では、第１側壁２４の一部は遮蔽壁１６の付根部側に連続して形成されている。逆に言えば、遮蔽壁１６は第１側壁２４の突出端に連続して形成されている。   Here, a concave groove 19 extending in the circumferential direction is formed on the lower surface of the outer peripheral edge portion of the substrate 13, and the peripheral edge portion 15 a of the tension member 15 is fitted into the concave groove 19 together with the tightening string 18. It has become. The concave groove 19 includes an annular first side wall 24 projecting downward from the lower surface of the substrate 13, and an annular second sidewall 25 projecting downward from the lower surface of the substrate 13 at a position spaced outside the first sidewall 24. , Is formed by. In this embodiment, a part of the first side wall 24 is continuously formed on the root side of the shielding wall 16. In other words, the shielding wall 16 is formed continuously with the protruding end of the first side wall 24.

第１側壁２４のうちの、基板１３の各角部１３ａに対応する領域と、直線部１３ｂに対応する領域には、第1側壁２４の突出端の近傍から基板１３の外側方向に突出する複数の第１突出壁２６が設けられている。一方、第２側壁２５のうちの、基板１３の左右両側の直線部１３ｂと前部側の直線部１３ｂに対応する領域には、第２側壁２５の突出端の近傍から基板１３の内側方向に突出する複数の第２突出壁２７が設けられている。
この実施形態においては、第１側壁２４と第１突出壁２６が、引き締められた締付紐条１８の基板中心方向の変位を規制する第１の係止手段を構成し、第２側壁２５と第２突出壁２７が、引き締められた締付紐条１８の基板外側方向の変位を規制する第２の係止手段を構成している。 A plurality of first sidewalls 24 projecting in the outward direction of the substrate 13 from the vicinity of the projecting end of the first sidewall 24 in regions corresponding to the corners 13a of the substrate 13 and regions corresponding to the straight portions 13b. The first protruding wall 26 is provided. On the other hand, in the region corresponding to the straight portion 13b on both the left and right sides of the substrate 13 and the straight portion 13b on the front side of the second side wall 25, from the vicinity of the protruding end of the second side wall 25 toward the inner side of the substrate 13. A plurality of second projecting walls 27 projecting are provided.
In this embodiment, the first side wall 24 and the first protruding wall 26 constitute a first locking means for restricting the displacement of the tightened fastening string 18 in the center direction of the substrate, The 2nd protrusion wall 27 comprises the 2nd latching | locking means which regulates the displacement of the board | substrate outer direction of the tightening string 18 tightened.

左右両側の直線部１３ｂと前部側の直線部１３ｂに対応する領域に設けられている第１突出壁２６と第２突出壁２７とは、凹溝１９の（締付紐条１８の）延出方向に所定距離離間して相互に隣り合って配置されている。つまり、第１突出壁２６と第２突出壁２７とは凹溝１９を挟んで千鳥状に配置されている。
ここで、左右両側の直線部１３ｂと前部側の直線部１３ｂに対応する領域に隣接して設けられる第１突出壁２６と第２突出壁２７とは、図５に示すように、凹溝１９の溝幅のほぼ半分の長さとなる位置まで各先端部が延出している。 The first projecting wall 26 and the second projecting wall 27 provided in the regions corresponding to the straight part 13b on the left and right sides and the straight part 13b on the front side extend from the concave groove 19 (in the tightening string 18). They are arranged adjacent to each other with a predetermined distance in the outgoing direction. That is, the first protruding wall 26 and the second protruding wall 27 are arranged in a staggered manner with the concave groove 19 interposed therebetween.
Here, the first projecting wall 26 and the second projecting wall 27 provided adjacent to the regions corresponding to the straight portions 13b on the left and right sides and the straight portion 13b on the front side are concave grooves as shown in FIG. Each tip extends to a position that is approximately half the length of the 19 groove width.

この実施形態の椅子１において、基板１３上にクッション材１４を配置してこれらに張材１５を取り付ける場合には、最初に、クッション材１４の外側面と基板１３の外周縁部とに張材１５を包み込むように被せ、基板１３の下面側において、張材１５の周縁部１５ａを締付紐条１８とともに基板１３の凹溝１９内に嵌入させる。このとき、各角部１３ａと後部側の直線部１３ｂでは、締付紐条１８と張材１５の周縁部１５ａとを、第１突出壁２６のみを乗り越えて凹溝１９内に押し入れ、左右両側の直線部１３ｂと前部側の直線部１３ｂでは、締付紐条１８と張材１５の周縁部１５ａとを、第１突出壁２６と第２突出壁２７を乗り越えて凹溝１９内に押し入れる。   In the chair 1 of this embodiment, when the cushioning material 14 is disposed on the substrate 13 and the tensioning material 15 is attached thereto, first, the tensioning material is applied to the outer side surface of the cushioning material 14 and the outer peripheral edge of the substrate 13. 15, and the peripheral portion 15 a of the tension member 15 is fitted into the concave groove 19 of the substrate 13 together with the fastening string 18 on the lower surface side of the substrate 13. At this time, at each corner portion 13a and the straight portion 13b on the rear side, the fastening string 18 and the peripheral edge portion 15a of the upholstery material 15 are pushed over only the first projecting wall 26 into the concave groove 19, In the straight portion 13b and the straight portion 13b on the front side, the fastening string 18 and the peripheral portion 15a of the tension member 15 are pushed over the first projecting wall 26 and the second projecting wall 27 into the concave groove 19. Put in.

次に、この状態において、張材１５の周縁部の挿通孔部１７から引き出された締付紐条１８の両端部を専用器具を用いて引き締め、その状態で締付紐条１８の両端部を相互に結束する。なお、締付紐条１８の引き締めは、作業者が手作業で行うことも可能である。こうして、締付紐条１８の両端部が引き締められると、基板１３の各角部１３ａと後部の直線部１３ｂに対応する領域では、締付紐条１８と張材１５の周縁部１５ａが基材中心方向に変位しようとし、基板１３の左右両側の直線部１３ｂと前部側の直線部１３ｂに対応する領域においては、一部では締付紐条１８と張材１５の周縁部１５ａが基材外側方向に変位し、他の一部では基材中心方向に変位しようとする。このとき、締付紐条１８と張材１５の周縁部１５ａの基板中心方向の変位は第１側壁２４と第１突出壁２６とによって規制され、締付紐条１８と張材１５の周縁部１５ａの基板外側方向の変位は第２側壁２５と第２突出壁２７とによって規制される。   Next, in this state, both ends of the tightening string 18 drawn out from the insertion hole 17 at the peripheral edge of the tension member 15 are tightened using a special instrument, and in this state, both ends of the tightening string 18 are tightened. Bond together. Note that the tightening of the tightening string 18 can also be performed manually by an operator. Thus, when the both ends of the tightening string 18 are tightened, the tightening string 18 and the peripheral edge 15a of the tension member 15 are the base material in the regions corresponding to the respective corner portions 13a and the rear straight portion 13b of the substrate 13. In the region corresponding to the straight portions 13b on both the left and right sides of the substrate 13 and the straight portion 13b on the front side, the fastening string 18 and the peripheral portion 15a of the tension member 15 are partially formed on the base material. Displacement in the outward direction, and in other parts, it tends to be displaced in the direction of the center of the substrate. At this time, the displacement of the fastening string 18 and the peripheral portion 15a of the tension member 15 in the center direction of the substrate is regulated by the first side wall 24 and the first protruding wall 26, and the peripheral portion of the tightening string 18 and the tension member 15 The displacement of 15 a in the substrate outer direction is regulated by the second side wall 25 and the second protruding wall 27.

以上のように、この実施形態に係る椅子１においては、座体４の基板１３の下面に、第１の係止手段である第１側壁２４と第１突出壁２６に加えて、第２の係止手段である第２側壁２５と第２突出壁２７が適正位置に設けられているため、張材１５の周縁部１５ａの内側に窄まろうとする変位だけでなく、外側に拡がろうとする変位も適切に規制することができる。このため、張材１５の種々の方向の捲れをより確実に抑制することができる。   As described above, in the chair 1 according to this embodiment, in addition to the first side wall 24 and the first projecting wall 26 which are the first locking means, the second surface is formed on the lower surface of the substrate 13 of the seat body 4. Since the second side wall 25 and the second projecting wall 27 that are the locking means are provided at appropriate positions, not only the displacement that tends to squeeze inside the peripheral edge portion 15a of the tension member 15 but also the outer side tends to spread outward. Displacement can also be regulated appropriately. For this reason, it is possible to more reliably suppress the stretching of the upholstery material 15 in various directions.

特に、この実施形態に係る椅子１では、上面に重ねられるクッション材１４の肉圧の厚い基板１３の左右両側の直線部１３ｂと前部側の直線部１３ｂに、第２側壁２５と第２突出壁２７が設けられているため、締付紐条１８の締め付けに伴う張材１５の周縁部１５ａの外側に拡がろうとする変位を適切に規制することができる。   In particular, in the chair 1 according to this embodiment, the second side wall 25 and the second protrusion are formed on the straight portions 13b on both the left and right sides and the straight portion 13b on the front side of the thick substrate 13 of the cushion material 14 stacked on the upper surface. Since the wall 27 is provided, it is possible to appropriately regulate the displacement that tends to spread to the outside of the peripheral edge portion 15a of the tension member 15 due to the tightening of the tightening string 18.

また、この実施形態に係る椅子１においては、第１の係止手段が第１側壁２４と第１突出壁２６とによって構成され、第２の係止手段が第２側壁２５と第２突出壁２７とによって構成されているため、凹溝１９からの張材１５の周縁部１５ａの抜けを第１突出壁２６と第２突出壁２７とによって確実に規制することができるうえ、締付紐条１８や張材１５の周縁部１５ａが、第１突出壁２６や第２突出壁２７に直接当接していない場合にも、締付紐条１８や張材１５の変位を凹溝１９の壁である第１側壁２４と第２側壁２５によって規制することができる。   In the chair 1 according to this embodiment, the first locking means is constituted by the first side wall 24 and the first protruding wall 26, and the second locking means is the second side wall 25 and the second protruding wall. 27, the detachment of the peripheral edge 15a of the tension member 15 from the concave groove 19 can be reliably regulated by the first projecting wall 26 and the second projecting wall 27, and the tightening cord 18 and the peripheral edge 15 a of the tension member 15 are not directly in contact with the first protrusion wall 26 and the second protrusion wall 27, the displacement of the tightening string 18 and the tension member 15 is caused by the wall of the groove 19. It can be regulated by a certain first side wall 24 and second side wall 25.

さらに、この実施形態に係る椅子１では、基板１３の下面に、基板１３の周方向に連続するように凹溝１９が設けられ、その凹溝１９の内側の壁によって第１側壁２４が構成されるとともに、凹溝１９の外側の壁によって第２側壁２５が構成されているため、張材１５の取付時には、締付紐条１８や張材１５の周縁部１５ａを基板１３上の凹溝１９内に連続的に押し込みながら、締付紐条１８や張材１５の周縁部１５ａを第１突出壁２６や第２突出壁２７の内側に容易に配置することができる。このため、張材１５の取り付けを容易に行うことができる。さらに、締付紐条１８や張材１５の周縁部１５ａが連続した凹溝１９内で変位規制されることから、張材１５の捲れをより生じにくくすることができる。
ただし、基板１３の下面には必ずしも連続した凹溝１９を形成しなければならないものではなく、図８に示す第２の実施形態のように、幅の狭い第１側壁１２４と第２側壁１２５とを、締付紐条１８の延出方向に沿うように基板１１３の下面に間欠的に突設し、第１側壁１２４と第２側壁１２５の各突出端の近傍に第１突出壁１２６と第２突出壁１２７をそれぞれ連設するようにしても良い。 Furthermore, in the chair 1 according to this embodiment, the concave groove 19 is provided on the lower surface of the substrate 13 so as to be continuous in the circumferential direction of the substrate 13, and the first side wall 24 is configured by the inner wall of the concave groove 19. In addition, since the second side wall 25 is constituted by the outer wall of the groove 19, when the tension member 15 is attached, the fastening string 18 and the peripheral portion 15 a of the tension member 15 are connected to the groove 19 on the substrate 13. The fastening strip 18 and the peripheral edge 15a of the upholstery material 15 can be easily arranged inside the first projecting wall 26 and the second projecting wall 27 while being continuously pushed into the inside. For this reason, the tension member 15 can be easily attached. Further, since the displacement of the fastening string 18 and the peripheral edge portion 15a of the upholstery material 15 is restricted within the continuous concave groove 19, it is possible to make the upholstery material 15 more difficult to bend.
However, it is not always necessary to form the continuous concave groove 19 on the lower surface of the substrate 13, and the first side wall 124 and the second side wall 125, which are narrow, as in the second embodiment shown in FIG. Are intermittently projected on the lower surface of the substrate 113 along the extending direction of the fastening cord 18, and the first projecting wall 126 and the first projecting wall 126 are disposed in the vicinity of the projecting ends of the first and second sidewalls 124 and 125, respectively. The two protruding walls 127 may be provided continuously.

また、この実施形態に係る椅子１においては、直線部１３ｂに設けられる第１突出壁２６と第２突出壁２７とが締付紐条１８の延出方向に離間して相互に隣り合って配置されているため、第１突出壁２６と第２突出壁２７の先端部同士の接触を招くことなく、第１突出壁２６と第２突出壁２７の延出長さを充分に延ばすことができる。このため、締付紐条１８や張材１５の周縁部の取り付けに際して、第１突出壁２６と第２突出壁２７を容易に撓み変形させることができる。したがって、これによって張材１５の取り付けを容易にすることができる。   Moreover, in the chair 1 which concerns on this embodiment, the 1st protrusion wall 26 and the 2nd protrusion wall 27 which are provided in the linear part 13b are arrange | positioned adjacent to mutually spaced apart in the extension direction of the fastening string 18. Therefore, the extending length of the first protruding wall 26 and the second protruding wall 27 can be sufficiently extended without causing contact between the tips of the first protruding wall 26 and the second protruding wall 27. . For this reason, the first projecting wall 26 and the second projecting wall 27 can be easily bent and deformed when the fastening string 18 and the peripheral portion of the tension member 15 are attached. Therefore, this makes it easy to attach the tension member 15.

特に、この実施形態の場合、直線部に隣接して設けられる第１突出壁２６と前記第２突出壁２７とが、凹溝１９の溝幅（第１側壁２４と第２側壁２５の離間幅）のほぼ半分の長さとなる位置まで各先端部が延出しているため、凹溝１９の広い範囲を第１突出壁２６と第２突出壁２７によって閉塞して、凹溝１９内からの張材１５の周縁部１５ａ（締付紐条１８）の脱落を有効に防止することができる。また、この実施形態のように、第１突出壁２６と第２突出壁２７の各先端部を、凹溝１９の溝幅のほぼ半分となる位置まで延出させた場合にも、最低限、締付紐条１８が通過できるように設定しておけば、張材１５の周縁部１５ａを凹溝１９内に入れ込む作業を第１突出壁２６と第２突出壁２７によって阻害されることもない。   In particular, in the case of this embodiment, the first projecting wall 26 and the second projecting wall 27 that are provided adjacent to the straight line portion have a groove width of the concave groove 19 (a separation width between the first side wall 24 and the second side wall 25. ), Each tip end extends to a position that is approximately half the length, so that the wide range of the concave groove 19 is closed by the first and second protruding walls 26 and 27, and the tension from the concave groove 19 is increased. It is possible to effectively prevent the peripheral edge portion 15a (clamping string 18) of the material 15 from falling off. Further, as in this embodiment, even when the respective leading end portions of the first projecting wall 26 and the second projecting wall 27 are extended to a position that is substantially half the groove width of the recessed groove 19, at a minimum, If the fastening string 18 is set so that it can pass, the operation of inserting the peripheral edge portion 15a of the tension member 15 into the concave groove 19 may be hindered by the first protruding wall 26 and the second protruding wall 27. Absent.

図９は、この発明の第３の実施形態の基板２１３の要部の下面を示す図である。
この実施形態では、直線部に設けられる第１突出壁２２６と第２突出壁２２７が、先端部が相互に対向する位置に配置されている。
この実施形態の場合、第１突出壁２２６と第２突出壁２２７の先端部が対向して配置されるため、締付紐条１８や張材１５の周縁部１５ａの変位方向が変化することがあっても、第１突出壁２２６と第２突出壁２２７のいずれか一方によって締付紐条１８や張材１５の周縁部１５ａの変位を確実に規制される。 FIG. 9 is a view showing the lower surface of the main part of the substrate 213 according to the third embodiment of the present invention.
In this embodiment, the 1st protrusion wall 226 and the 2nd protrusion wall 227 which are provided in a linear part are arrange | positioned in the position where a front-end | tip part mutually opposes.
In the case of this embodiment, since the front ends of the first protruding wall 226 and the second protruding wall 227 are arranged to face each other, the displacement direction of the tightening string 18 and the peripheral portion 15a of the tension member 15 may change. Even if it exists, displacement of the peripheral part 15a of the fastening cord 18 or the tension | tensile_strength material 15 is reliably controlled by either one of the 1st protrusion wall 226 and the 2nd protrusion wall 227.

図１０は、この発明の第４の実施形態の基板３１３の要部の下面を示す図である。
この実施形態では、直線部に設けられる第１突出壁３２６と第２突出壁３２７が、先端部の一部が相互に対向しかつ残余の一部が締付紐条１８の延出方向に離間するように配置されている。
この実施形態では、締付紐条１８や張材１５の周縁部１５ａの変位方向が変化することがあっても、第１突出壁３２６と第２突出壁３２７のいずれか一方によって締付紐条１８や張材１５の周縁部１５ａの変位を確実に規制することができる。
また、第１突出壁３２６と第２突出壁３２７は先端部の一部のみが相互に対向し、残余の一部が締付紐条１８の延出方向に離間しているため、第１突出壁３２６と第２突出壁３２７が締付紐条１８の延出方向に沿って長く延出することになる。このため、締付紐条１８や張材１５の周縁部１５ａを取り付けるときに、第１突出壁３２６と第２突出壁３２７を容易に撓み変形させることができる。このため、張材１５の取り付けを容易にすることができる。 FIG. 10 is a view showing the lower surface of the main part of the substrate 313 according to the fourth embodiment of the present invention.
In this embodiment, the first projecting wall 326 and the second projecting wall 327 provided in the straight portion are such that a part of the tip part is opposed to each other and a part of the remaining part is separated in the extending direction of the fastening string 18. Are arranged to be.
In this embodiment, even if the displacement direction of the tightening cord 18 or the peripheral portion 15a of the tension member 15 may change, the tightening cord by either one of the first projecting wall 326 and the second projecting wall 327. 18 and the displacement of the peripheral portion 15a of the upholstery material 15 can be reliably regulated.
In addition, the first projecting wall 326 and the second projecting wall 327 are such that only a part of the tip part is opposed to each other and the remaining part is separated in the extending direction of the tightening string 18, so that the first projecting wall The wall 326 and the second projecting wall 327 extend long along the extending direction of the tightening string 18. For this reason, the first projecting wall 326 and the second projecting wall 327 can be easily bent and deformed when the fastening string 18 and the peripheral portion 15a of the tension member 15 are attached. For this reason, attachment of the upholstery material 15 can be facilitated.

なお、この発明は上記の実施形態に限定されるものではなく、その要旨を逸脱しない範囲で種々の設計変更が可能である。例えば、上記の実施形態は、荷重支持体が座体である実施形態であるが、同様の構造を背凭れ部の背凭れ本体に採用することも可能である。   In addition, this invention is not limited to said embodiment, A various design change is possible in the range which does not deviate from the summary. For example, although the above-described embodiment is an embodiment in which the load support is a seat, a similar structure can be adopted for the backrest body of the backrest.

１ 椅子
４ 座体（荷重支持体）
１３ 基板
１４ クッション材
１５ 張材
１８ 締付紐条
１９ 凹溝
２４ 第１側壁
２５ 第２側壁
２６ 第１突出壁
２７ 第２突出壁 1 chair 4 seat (load support)
DESCRIPTION OF SYMBOLS 13 Board | substrate 14 Cushion material 15 Tension | tensile_strength material 18 Fastening string 19 Ditch | groove 24 1st side wall 25 2nd side wall 26 1st protrusion wall 27 2nd protrusion wall

Claims (6)

骨格部を成す基板と、
該基板の表面側に配置されるクッション材と、
少なくとも前記クッション材の外側面と前記基板の外周縁部とにかけて覆う張材と、
該張材の周縁部に挿通され、該張材が前記クッション材の外側面と前記基板の外周縁部を覆った状態で、前記基板の裏面側で引き締められて端部同士を結束される締付紐条と、を有する荷重支持体を備えた椅子において、
前記基板には、引き締められた前記締付紐条の基板中心方向の変位を規制する第１の係止手段と、引き締められた前記締付紐条の基板外側方向の変位を規制する第２の係止手段と、が設けられ、
前記第１の係止手段は、前記基板の裏面から裏方に突出する第１側壁と、該第１側壁の突出端の近傍から前記基板の外側方向に突出する第１突出壁と、を備え、
前記第２の係止手段は、前記基板の裏面から裏方に突出する第２側壁と、該第２側壁の突出端の近傍から前記基板の内側方向に突出する第２突出壁と、を備え、
前記基板の裏面には、当該基板の周方向に連続する凹溝が形成され、前記第１側壁は前記凹溝の内側の壁によって構成され、前記第２側壁は前記凹溝の外側の壁によって構成されていることを特徴とする椅子。 A substrate forming a skeleton, and
A cushioning material disposed on the surface side of the substrate;
A covering material covering at least the outer surface of the cushion material and the outer peripheral edge of the substrate;
A fastening member that is inserted into the peripheral edge of the tension member and is tightened on the back side of the substrate to bind the ends together in a state where the tension material covers the outer peripheral surface of the cushion material and the outer peripheral edge of the substrate. In a chair provided with a load support having a string,
The substrate has a first locking means for restricting displacement of the tightened string in the center direction of the substrate, and a second for restricting displacement of the tightened string in the direction of the substrate outside. and locking means, it is provided, et al is,
The first locking means includes a first side wall projecting backward from the back surface of the substrate, and a first projecting wall projecting outward from the vicinity of the projecting end of the first side wall,
The second locking means includes a second side wall protruding backward from the back surface of the substrate, and a second protruding wall protruding inward of the substrate from the vicinity of the protruding end of the second side wall,
A concave groove continuous in the circumferential direction of the substrate is formed on the back surface of the substrate, the first side wall is constituted by an inner wall of the concave groove, and the second side wall is constituted by an outer wall of the concave groove. A chair characterized in that it is constructed . 前記基板は、四隅に角部を、角部同士の間に直線部を有する略矩形状に形成され、
前記角部には前記第１係止手段が設けられ、
少なくとも一部の前記直線部には、前記第２の係止手段が設けられていることを特徴とする請求項１に記載の椅子。 The substrate is formed in a substantially rectangular shape having corners at four corners and straight portions between the corners,
The corner is provided with the first locking means,
The chair according to claim 1, wherein the second locking means is provided in at least a part of the straight part. 前記第１突出壁と前記第２突出壁とは、前記締付紐条の延出方向に離間して相互に隣り合って配置されていることを特徴とする請求項１または２に記載の椅子。 3. The chair according to claim 1, wherein the first projecting wall and the second projecting wall are disposed adjacent to each other while being separated from each other in the extending direction of the fastening string. . 骨格部を成す基板と、
該基板の表面側に配置されるクッション材と、
少なくとも前記クッション材の外側面と前記基板の外周縁部とにかけて覆う張材と、
該張材の周縁部に挿通され、該張材が前記クッション材の外側面と前記基板の外周縁部を覆った状態で、前記基板の裏面側で引き締められて端部同士を結束される締付紐条と、を有する荷重支持体を備えた椅子において、
前記基板には、引き締められた前記締付紐条の基板中心方向の変位を規制する第１の係止手段と、引き締められた前記締付紐条の基板外側方向の変位を規制する第２の係止手段と、が設けられ、
前記第１の係止手段は、前記基板の裏面から裏方に突出する第１側壁と、該第１側壁の突出端の近傍から前記基板の外側方向に突出する第１突出壁と、を備え、
前記第２の係止手段は、前記基板の裏面から裏方に突出する第２側壁と、該第２側壁の突出端の近傍から前記基板の内側方向に突出する第２突出壁と、を備え、
前記第１突出壁と前記第２突出壁とは、前記締付紐条の延出方向に離間して相互に隣り合って配置され、
隣接して設けられる前記第１突出壁と前記第２突出壁とは、前記第１側壁と前記第２側壁の前記締付紐条の延出方向と交差する方向の離間幅のほぼ半分の長さとなる位置まで各先端部が延出していることを特徴とする椅子。 A substrate forming a skeleton, and
A cushioning material disposed on the surface side of the substrate;
A covering material covering at least the outer surface of the cushion material and the outer peripheral edge of the substrate;
A fastening member that is inserted into the peripheral edge of the tension member and is tightened on the back side of the substrate to bind the ends together in a state where the tension material covers the outer peripheral surface of the cushion material and the outer peripheral edge of the substrate. In a chair provided with a load support having a string,
The substrate has a first locking means for restricting displacement of the tightened string in the center direction of the substrate, and a second for restricting displacement of the tightened string in the direction of the substrate outside. And a locking means,
The first locking means includes a first side wall projecting backward from the back surface of the substrate, and a first projecting wall projecting outward from the vicinity of the projecting end of the first side wall,
The second locking means includes a second side wall protruding backward from the back surface of the substrate, and a second protruding wall protruding inward of the substrate from the vicinity of the protruding end of the second side wall,
The first projecting wall and the second projecting wall are disposed adjacent to each other with a spacing in the extending direction of the fastening string,
The first projecting wall and the second projecting wall provided adjacent to each other are approximately half the separation width of the first side wall and the second side wall in the direction intersecting with the extending direction of the fastening string. A chair characterized in that each tip extends to a certain position. 骨格部を成す基板と、
該基板の表面側に配置されるクッション材と、
少なくとも前記クッション材の外側面と前記基板の外周縁部とにかけて覆う張材と、
該張材の周縁部に挿通され、該張材が前記クッション材の外側面と前記基板の外周縁部を覆った状態で、前記基板の裏面側で引き締められて端部同士を結束される締付紐条と、を有する荷重支持体を備えた椅子において、
前記基板には、引き締められた前記締付紐条の基板中心方向の変位を規制する第１の係止手段と、引き締められた前記締付紐条の基板外側方向の変位を規制する第２の係止手段と、が設けられ、
前記第１の係止手段は、前記基板の裏面から裏方に突出する第１側壁と、該第１側壁の突出端の近傍から前記基板の外側方向に突出する第１突出壁と、を備え、
前記第２の係止手段は、前記基板の裏面から裏方に突出する第２側壁と、該第２側壁の突出端の近傍から前記基板の内側方向に突出する第２突出壁と、を備え、
前記第１突出壁と前記第２突出壁とは、先端部が相互に対向する位置に配置されていることを特徴とする椅子。 A substrate forming a skeleton, and
A cushioning material disposed on the surface side of the substrate;
A covering material covering at least the outer surface of the cushion material and the outer peripheral edge of the substrate;
A fastening member that is inserted into the peripheral edge of the tension member and is tightened on the back side of the substrate to bind the ends together in a state where the tension material covers the outer peripheral surface of the cushion material and the outer peripheral edge of the substrate. In a chair provided with a load support having a string,
The substrate has a first locking means for restricting displacement of the tightened string in the center direction of the substrate, and a second for restricting displacement of the tightened string in the direction of the substrate outside. And a locking means,
The first locking means includes a first side wall projecting backward from the back surface of the substrate, and a first projecting wall projecting outward from the vicinity of the projecting end of the first side wall,
The second locking means includes a second side wall protruding backward from the back surface of the substrate, and a second protruding wall protruding inward of the substrate from the vicinity of the protruding end of the second side wall,
The first projecting wall and the second projecting wall are arranged at positions where their tip portions face each other. 骨格部を成す基板と、
該基板の表面側に配置されるクッション材と、
少なくとも前記クッション材の外側面と前記基板の外周縁部とにかけて覆う張材と、
該張材の周縁部に挿通され、該張材が前記クッション材の外側面と前記基板の外周縁部を覆った状態で、前記基板の裏面側で引き締められて端部同士を結束される締付紐条と、を有する荷重支持体を備えた椅子において、
前記基板には、引き締められた前記締付紐条の基板中心方向の変位を規制する第１の係止手段と、引き締められた前記締付紐条の基板外側方向の変位を規制する第２の係止手段と、が設けられ、
前記第１の係止手段は、前記基板の裏面から裏方に突出する第１側壁と、該第１側壁の突出端の近傍から前記基板の外側方向に突出する第１突出壁と、を備え、
前記第２の係止手段は、前記基板の裏面から裏方に突出する第２側壁と、該第２側壁の突出端の近傍から前記基板の内側方向に突出する第２突出壁と、を備え、
前記第１突出壁と前記第２突出壁とは、先端部の一部が相互に対向しかつ残余の一部が前記締付紐条の延出方向に離間して配置されていることを特徴とする椅子。 A substrate forming a skeleton, and
A cushioning material disposed on the surface side of the substrate;
A covering material covering at least the outer surface of the cushion material and the outer peripheral edge of the substrate;
A fastening member that is inserted into the peripheral edge of the tension member and is tightened on the back side of the substrate to bind the ends together in a state where the tension material covers the outer peripheral surface of the cushion material and the outer peripheral edge of the substrate. In a chair provided with a load support having a string,
The substrate has a first locking means for restricting displacement of the tightened string in the center direction of the substrate, and a second for restricting displacement of the tightened string in the direction of the substrate outside. And a locking means,
The first locking means includes a first side wall projecting backward from the back surface of the substrate, and a first projecting wall projecting outward from the vicinity of the projecting end of the first side wall,
The second locking means includes a second side wall protruding backward from the back surface of the substrate, and a second protruding wall protruding inward of the substrate from the vicinity of the protruding end of the second side wall,
The first projecting wall and the second projecting wall are arranged such that a part of the tip part faces each other and a part of the remaining part is spaced apart in the extending direction of the fastening string. And a chair.
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