JP5597110B2 - Chair member having elastic sheet and chair using the same - Google Patents

Chair member having elastic sheet and chair using the same Download PDF

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JP5597110B2
JP5597110B2 JP2010266380A JP2010266380A JP5597110B2 JP 5597110 B2 JP5597110 B2 JP 5597110B2 JP 2010266380 A JP2010266380 A JP 2010266380A JP 2010266380 A JP2010266380 A JP 2010266380A JP 5597110 B2 JP5597110 B2 JP 5597110B2
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elastic sheet
substrate
chair
opening
seat
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JP2012115382A (en
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府佐雄 安田
正樹 松本
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三惠工業株式会社
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Description

本発明は、弾性シートを有する椅子の座部等の椅子部材及びそれを用いた椅子に関する。   The present invention relates to a chair member such as a seat portion of a chair having an elastic sheet, and a chair using the same.

オフィスやホール、集会場などで利用される椅子には、背部や座部にクッション性を設けた構造が多いが、このクッション部材として、開口部を有する枠体を構成し、その開口部に弾力性のある弾性シートを張設した椅子が知られている（例えば特許文献１参照）。このような弾性シートを張設した椅子の座部等は、軽快感があり、快適な座り心地を実現することができるが、着座した際、枠体の開口部の周縁に沿ってシートが凹むので、開口部の周縁が身体に当り、不快感を与えることがある。また、枠体の表面から裏面まで回りこむような大きさの弾性シートを必要とするので、シート材料が無駄になり、その上、枠体の周縁部で弾性シートが屈曲するので、いつも同じ箇所が引っ張られ、屈曲部に当るシート部分が破損しやすい、というおそれがあった。   Many chairs used in offices, halls, gatherings, etc. have a structure with cushioning on the back and seat, but as this cushion member, a frame with an opening is constructed, and the opening has elasticity. There is known a chair in which a flexible elastic sheet is stretched (see, for example, Patent Document 1). The seat portion of the chair on which such an elastic sheet is stretched has a light feeling and can realize a comfortable sitting comfort, but when seated, the seat is recessed along the periphery of the opening of the frame body. Therefore, the periphery of the opening may hit the body and give unpleasant feeling. In addition, since an elastic sheet having a size that wraps around from the front surface to the back surface of the frame is required, the sheet material is wasted and the elastic sheet bends at the periphery of the frame, so the same location is always used. As a result, the sheet portion that hits the bent portion is likely to be damaged.

実公平８−８６７３号公報（請求項１、図１〜図３）Japanese Utility Model Publication No. 8-8673 (Claim 1, FIGS. 1 to 3)

本発明の解決課題は、枠体の開口部に弾性シートを張設して構成された座部や背部等の椅子部材において、着座した際に身体に違和感を与えることがなく、軽くて弾力性のある座面等が得られ、弾性シートに無駄がなく、損傷や劣化しにくい椅子部材を提供することである。   The problem to be solved by the present invention is that a chair member such as a seat or a back formed by stretching an elastic sheet in an opening of a frame body is light and elastic without giving a sense of incongruity to the body when seated. It is an object of the present invention to provide a chair member that can provide a seating surface and the like, has no waste in an elastic sheet, and is hardly damaged or deteriorated.

本発明によれば、開口部に弾性シートを張設した基板を有する椅子部材において、上記基板は平板状に形成され、該基板の開口部の周縁には、弾性シートが開口部内に凹むとき該弾性シートに沿ってたわむよう易可撓性区帯が形成され、この基板の上面に弾性シートを一体的に固着したことを特徴とする弾性シートを有する椅子部材が提供され、上記課題が解決される。   According to the present invention, in a chair member having a substrate in which an elastic sheet is stretched in the opening, the substrate is formed in a flat plate shape, and the elastic sheet is recessed in the opening at the periphery of the opening of the substrate. An easy-flexible zone is formed so as to bend along the elastic sheet, and a chair member having an elastic sheet is provided, wherein the elastic sheet is integrally fixed to the upper surface of the substrate. The

また、本発明によれば、上記易可撓性区帯として、基板本体の周縁に沿って長溝状のスリットを形成し、上面に弾性シートを一体的に固着し椅子部材が提供され、上記課題が解決される。   Further, according to the present invention, there is provided a chair member in which an elongate slit is formed along the peripheral edge of the substrate body as the flexible zone and the elastic sheet is integrally fixed to the upper surface. Is resolved.

本発明は、上記のように構成され、基板を平板状に形成し、該基板の開口部の周縁に弾性シートが開口部内に凹むとき該弾性シートに沿って周縁部がたわむよう易可撓性区帯を形成し、この基板の上面に弾性シートを一体的に固着したから、この基板を用いて座部や背部を構成すると、着座したとき、易可撓性区帯が緩やかにたわんで身体の一部が開口部の周縁部に強く当らないようにでき、座り心地がよく、また周縁部に接する部分が緩やかに伸長するので、弾性シートの損傷の少なく、軽くて弾力性のある座部、背部等の椅子部材が得られる。その上、弾性シートを一体成形で基板に固着するから、弾性シート材料は易可撓性区帯を覆う大きさがあれば充分であり、材料に無駄がない。   The present invention is configured as described above, and the substrate is formed into a flat plate shape. When the elastic sheet is recessed in the opening at the periphery of the opening of the substrate, the periphery is easily flexible along the elastic sheet. Since the band is formed and the elastic sheet is integrally fixed to the upper surface of this board, if the seat and back are configured using this board, the flexible band will bend flexibly when seated. Part of the seat does not hit the peripheral edge of the opening strongly, the seating comfort is good, and the part in contact with the peripheral edge extends gently, so the elastic seat is less damaged and light and elastic seat A chair member such as a back portion is obtained. In addition, since the elastic sheet is fixed to the substrate by integral molding, it is sufficient that the elastic sheet material is large enough to cover the easily flexible zone, and the material is not wasted.

本発明の一実施例を示す斜視図。The perspective view which shows one Example of this invention. 底面から見た一部の斜視図。The perspective view of a part seen from the bottom. 表装材等を外して座部の基板を平面から見た一部の斜視図。The partial perspective view which removed the surface covering material etc. and looked at the board | substrate of the seat part from the plane. 弾性シートを省略した座部の基板の平面図。The top view of the board | substrate of the seat part which abbreviate | omitted the elastic sheet. 弾性シートを省略した座部の基板の底面図。The bottom view of the board | substrate of the seat part which abbreviate | omitted the elastic sheet. 椅子の座部の一部の拡大断面図。The expanded sectional view of a part of seat part of a chair.

図１は本発明の一実施例を示す椅子の斜視図であって、前脚２、後脚３、背枠４を具備する脚フレーム１には、座部５、背部６が設けられ、所望により肘掛部（図示略）も設けられる。   FIG. 1 is a perspective view of a chair showing an embodiment of the present invention. A leg frame 1 having a front leg 2, a rear leg 3, and a back frame 4 is provided with a seat part 5 and a back part 6, and if desired. An armrest (not shown) is also provided.

図２、図３には、上記表装材７等を外した座部５を構成する基板８が示されている。該基板８は種々の形態に形成することができ、図に示す実施例では、前方に下方に屈曲する前面部９を有する略四角形状の基板本体１０が形成され、適宜位置には取付ねじ１１で座部５を脚フレーム１に取り付けるためのナット１２をかしめる取付部１３があり、中央部には略四角形状の開口部１４が設けられ、上面には開口部１４を覆う大きさの弾性シート１５が張設されている。そして、上記基板本体１０はプラスチック材料で厚さ約２.５〜５ｍｍ程度、好ましくは約３ｍｍ程度の平板状に形成され、開口部１４の周縁には、弾性シート１５が上面の作用する負荷により開口部１４内に凹むとき該弾性シートに沿ってたわむよう易可撓性区帯１６が形成されている。   2 and 3 show a substrate 8 constituting the seat portion 5 from which the cover material 7 and the like are removed. The substrate 8 can be formed in various forms. In the embodiment shown in the figure, a substantially rectangular substrate body 10 having a front surface portion 9 bent downward is formed on the front side, and a mounting screw 11 is provided at an appropriate position. There is an attachment portion 13 for caulking a nut 12 for attaching the seat portion 5 to the leg frame 1, an opening portion 14 having a substantially square shape is provided in the center portion, and an elasticity of a size covering the opening portion 14 on the upper surface. A sheet 15 is stretched. The substrate body 10 is made of a plastic material and is formed in a flat plate shape having a thickness of about 2.5 to 5 mm, preferably about 3 mm. The elastic sheet 15 is applied to the periphery of the opening 14 due to a load acting on the upper surface. An easily flexible zone 16 is formed so as to bend along the elastic sheet when recessed in the opening 14.

上記易可撓性区帯１６は、種々に構成することができる。図４、図５に示す実施例では、開口部１４の周縁に沿って長溝状のスリット１７を形成して易可撓性区帯を構成している。このスリット１７は、基板本体１０から開口部の中心方向に延びる放射枠部１８と、基板本体１０との間に間隔を空けて該放射枠部１８の先端を連絡する環状枠部１９により形成され、図に示す実施例では座部の前方に位置する部分の可撓性を大きくするよう環状枠部１９に沿って内方枠部２０を並列して設け、スリット１７が複数列並ぶようにしてある。   The easy-flexible zone 16 can be variously configured. In the embodiment shown in FIGS. 4 and 5, an elongate slit 17 is formed along the periphery of the opening 14 to constitute an easily flexible zone. The slit 17 is formed by a radiating frame portion 18 extending from the substrate body 10 toward the center of the opening, and an annular frame portion 19 connecting the tip of the radiating frame portion 18 with a space between the substrate body 10. In the embodiment shown in the figure, the inner frame portion 20 is provided in parallel along the annular frame portion 19 so as to increase the flexibility of the portion located in front of the seat portion, and the slits 17 are arranged in a plurality of rows. is there.

上記スリットの数、形状等は目的とする椅子に応じて適宜に選定することができ、例えば単なる孔形状の空間を形成してもよい（図示略）。   The number, shape, and the like of the slits can be appropriately selected according to the target chair. For example, a simple hole-shaped space may be formed (not shown).

上記弾性シート１５としては、ポリエステルの糸を伸縮性に富むように織った組織の伸縮可能な布バネを用いているが、適度の弾性作用を生じるようポリエステル弾性糸とポリエステル等で織成したメッシュ状の織布やその他適宜の弾力性のあるシート材料が好適に使用でき、その大きさは開口部周縁の易可撓性区帯１６を覆うことができる程度の大きさ、例えば、図に示すものでは、約３２０ｍｍ×３６０ｍｍ程度の大きさに形成される。なお、基板８の材質としては、図に示す実施例では成形時にこの弾性シートが一体的に溶着されるようポリエステルを用いているが、弾性シートの材質に応じて適宜の材料を選択することができる。   As the elastic sheet 15, a stretchable cloth spring in which a polyester yarn is woven so as to have high stretchability is used. However, a mesh-like woven fabric made of polyester elastic yarn and polyester or the like is used so as to produce an appropriate elastic action. A woven fabric or other appropriate elastic sheet material can be suitably used, and the size thereof is a size that can cover the flexible zone 16 at the periphery of the opening, for example, as shown in the figure. , About 320 mm × 360 mm. As the material of the substrate 8, polyester is used so that the elastic sheet is integrally welded at the time of molding in the embodiment shown in the figure, but an appropriate material can be selected according to the material of the elastic sheet. it can.

上記弾性シート１５と基板８を一体的に固定するには、射出成形する際、スリット１７に対応する部位を成形する一方の金型部分にピンを突設し、このピンに基板全体の大きさよりも小さい弾性シート１５の周縁を突き刺して該金型に固定し、金型を閉じた状態で金型キャビティー内に溶融樹脂材料を射出すれば、弾性シート１５は上記易可撓性区帯１６を覆う状態で基板本体１０と一体化する。   In order to fix the elastic sheet 15 and the substrate 8 integrally, when injection molding is performed, a pin is protruded from one mold part that molds a portion corresponding to the slit 17, and the size of the entire substrate is determined by this pin. If the molten resin material is injected into the mold cavity with the mold closed, the elastic sheet 15 is pierced at the periphery of the smaller elastic sheet 15 and fixed to the mold. Is integrated with the substrate body 10.

その後、この基板８の上面に、ウレタンフォーム等のクッション材２１と布、レザー等の表装材７を被せ、該表装材７の周縁部を基板８の裏面に回してタッカー針２２等で固定すれば、座部、背部等の椅子部材が完成する。   After that, the upper surface of the substrate 8 is covered with a cushioning material 21 such as urethane foam and a cover material 7 such as cloth or leather, and the peripheral portion of the cover material 7 is turned to the back surface of the substrate 8 and fixed with a tucker needle 22 or the like. Thus, chair members such as a seat and a back are completed.

上記ように構成された座部５は、着座すると、図６に示すように易可撓性区帯１６が座面に作用する負荷により弾性シート１５に沿って緩やかに湾曲するから、従来のように枠体の開口部の周縁が身体の一部に当るおそれもなく、かつこの易可撓性区帯１６からの弾性作用を伴う適度のたわみにより座り心地がよい。また、従来のように弾性シートが開口部の周縁部に強く当らないから、損傷が防止される。   When the seat portion 5 configured as described above is seated, the flexible zone 16 is gently curved along the elastic sheet 15 due to the load acting on the seat surface as shown in FIG. In addition, there is no fear that the peripheral edge of the opening of the frame will hit a part of the body, and the seating comfort is good due to moderate deflection accompanied by the elastic action from the flexible zone 16. Further, since the elastic sheet does not hit the peripheral edge of the opening as in the conventional case, damage is prevented.

１ 脚フレーム
５ 座部
６ 背部
８ 基板
１０ 基板本体
１４ 開口部
１５ 弾性シート
１６ 易可撓性区帯
１７ スリット DESCRIPTION OF SYMBOLS 1 Leg frame 5 Seat part 6 Back part 8 Board | substrate 10 Board | substrate main body 14 Opening part 15 Elastic sheet 16 Easy flexible zone 17 Slit

Claims (3)

開口部に弾性シートを張設した基板を有する椅子部材において、上記基板は平板状に形成され、該基板の開口部の周縁には、弾性シートが開口部内に凹むとき該弾性シートに沿って周縁がたわむよう易可撓性区帯が形成され、該易可撓性区帯は基体本体から開口部の中心方向に延びる放射枠部と、基体本体との間に間隔を空けて該放射枠部の先端を連絡する環状枠部により形成される長溝状のスリットで形成され、この基板の上面に易可撓性区帯を覆う状態で弾性シートを射出成形により基体本体と一体的に固着したことを特徴とする弾性シートを有する椅子部材。 In a chair member having a substrate in which an elastic sheet is stretched in an opening, the substrate is formed in a flat plate shape, and the periphery of the opening of the substrate has a periphery along the elastic sheet when the elastic sheet is recessed in the opening. An easy-flexible zone is formed so as to bend , and the easily-flexible zone is spaced from the radiating frame portion extending in the center direction of the opening from the base body, and the radiating frame portion is spaced from the base body. The elastic sheet is integrally fixed to the base body by injection molding in a state of covering the easy-flexible zone on the upper surface of the substrate , which is formed by a long groove-like slit formed by an annular frame portion that communicates the tip of the substrate. A chair member having an elastic sheet. 上記弾性シートは基板全体の大きさよりも小さい請求項１に記載の椅子部材。 The chair member according to claim 1, wherein the elastic sheet is smaller than a size of the entire substrate . 上記請求項１又は２に記載の椅子部材を有する椅子。   The chair which has the chair member of the said Claim 1 or 2.
JP2010266380A 2010-11-30 2010-11-30 Chair member having elastic sheet and chair using the same Active JP5597110B2 (en)

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JP4009705B2 (en) * 1997-09-12 2007-11-21 テイ・エス テック株式会社 Seat having a seating surface by a planar elastic body
JP2001340155A (en) * 2000-05-31 2001-12-11 Itoki Crebio Corp Chair having frame structure
JP4202688B2 (en) * 2002-07-23 2008-12-24 株式会社岡村製作所 Chair seat structure

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