JP4524014B2 - Chair seat - Google Patents
Chair seat Download PDFInfo
- Publication number
- JP4524014B2 JP4524014B2 JP31840499A JP31840499A JP4524014B2 JP 4524014 B2 JP4524014 B2 JP 4524014B2 JP 31840499 A JP31840499 A JP 31840499A JP 31840499 A JP31840499 A JP 31840499A JP 4524014 B2 JP4524014 B2 JP 4524014B2
- Authority
- JP
- Japan
- Prior art keywords
- support frame
- substrate
- seat
- skin material
- rib
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- 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
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- Chairs Characterized By Structure (AREA)
Description
【０００１】
【発明の属する技術分野】
本発明は、椅子の座板に関し、特に、ネスティング格納可能、すなわち前後方向に重ねて格納できるようにした椅子に好適に用いられる座板に関する。しかし本発明は、椅子の背当てにも適用することができる。
【０００２】
【従来の技術】
従来、座板を形成するのに、基板の上にクッション材を設け、このクッション材と基板とを、基板の裏面の中央部を残して表皮材で覆い、この表皮材の側縁に形成された筒状の挿通部に可撓性の締付紐条を通して、これを緊張させることにより、表皮材の周縁を窄めて一体化するやり方が行われている。
【０００３】
【発明が解決しようとする課題】
このような座板の形成法は合理的なものではあるが、表皮材の挿通部、すなわち周縁部が均一に窄まないので、座板を裏面から見た場合、やや見苦しい。特に、椅子がネスティング格納可能で、座板を起立させるものである場合、座板の裏面が正面から見えるので、体裁が悪い。
【０００４】
本発明は、上述の問題に鑑み、基板の裏面に回り込んだ表皮材を確実に保持し、かつ座板の裏面の見栄えをよくした椅子の座板を提供することを目的としている。
【０００５】
【課題を解決するための手段】
本発明によると、上記課題は、次のようにして解決される。
(１) 枠状の支持フレームに、座部の裏面側の周縁部を載置して支持した椅子の座板であって、前記座部が、前記支持フレームの外周に沿う係止リブが裏面から突設された基板と、該基板の表面側を覆うクッション材と、該クッション材と前記基板の周辺部とを覆う表皮材とを備え、前記基板の裏面に、前記支持フレームの内周に沿う受支リブを突設するとともに、前記受支リブの角部における上下方向の中間部から基部にかけて切り欠き部を設け、かつ前記表皮材の周縁に可撓性の締付紐条を挿通可能な挿通部を設け、前記締付紐条を挿通した前記挿通部を前記切り欠き部に係合させて、前記締付紐条を緊張させることにより、前記表皮材の周縁を前記受支リブの外周まで窄めるとともに、前記支持フレームを前記係止リブと前記受支リブとの間に嵌合し、前記座部の前記表皮材の周縁を、前記係止リブの先端を経て、前記基板の裏面と支持フレームとの間に挟み込んで、支持フレームにより覆い隠すようにする。
(２) 上記(１)項において、前記基板の前部の前記受支リブを板状断面とし、前記基部の左右側部および後部の前記受支リブを、Ｖ字状断面とする。
【０００６】
(３) 上記(１)または(２)項において、支持フレームを、左右に対向する脚体に、ほぼ水平状態とほぼ垂直状態との間で回動可能に取り付ける。
【０００７】
【発明の実施の形態】
図１は、本発明の座板(１)を備える椅子(Ａ)の側面図である。この椅子は、座板(１)を、実線で示すほぼ水平状態（使用位置）から、想像線で示すほぼ垂直状態まで回動させることができる。
【０００８】
図２は、座板(１)を、分解した状態で示す下方斜視図である。
座板(１)は、脚体(２)の上部の水平部分を構成するほぼ方形枠状の鋼管製の支持フレーム(３)と、座部(４)とからなっている。
【０００９】
座部(４)は、支持フレーム(３)に対応する形状のほぼ方形の基板(５)と、クッション材(６)と、表皮材(７)とからなっている。
【００１０】
基板(５)は、硬質合成樹脂材料の一体成型品であり、図３〜図５に示すように、中央部(６)がやや下方に窪み、かつ周縁部を除く後半部に多数の小孔が穿設されて、体重が負荷される着座者の尻部に対応する部分に、弾性が付与されている。
【００１１】
基板(５)の裏面には、支持フレーム(３)の内周に沿う位置において、受支リブ(8a)(8b)が突設されている。
図４〜図６に示すように、基板(５)の左右側部及び後部に形成されている受支リブ(8a)は、Ｖ字状をなし、基板(５)に、荷重に対する屈従性を付与している。基板(５)の前部に形成されている受支リブ(8b)は、単なる突出リブである。
【００１２】
基板(５)の裏面の周縁部には、支持フレーム(３)の外周に沿う位置において、係止リブ(９)が突設されている。係止リブ(９)は、後述する表皮材(７)の周縁部を、支持フレーム(３)との間に押さえ込んで、表皮材(７)を緊張させるとともに、表皮材(７)が外部に露呈しないようにするためのものである。
【００１３】
図６に拡大して示すように、基板(５)における受支リブ(8a)(8b)の各角部には、その中間部から基部にかけて、水平方向の切り欠き部(10)が穿設されている。
【００１４】
クッション材(６)は、例えば発泡ポリウレタンのような軟質弾性材料からなる適宜の厚さのシートである。
【００１５】
表皮材(７)は、例えば織布、ビニールレザーのような適宜な材料で作られ、図２、図６及び図７に示すように、その周縁には、折り返して縫った袋状の挿通部(7a)が形成されている。挿通部(7a)には、可撓性の締付紐条(11)を挿通し、その両端を、挿通部(7a)の途中から外へ引き出してある。
【００１６】
座部(４)の形成に当たっては、まず表皮材(７)を裏返しとして適宜の台上に置き、この上にクッション材(６)を載置し、さらにその上に、基板(５)を裏返しとして置く。
【００１７】
ついで、図７に示すように、表皮材(７)の全周縁部を、係止リブ(９)の先端を経て、基板(５)の裏面側に折り返して、締付紐条(11)の両端を強く引く。
【００１８】
すると、図３及び図６に示すように、締付紐条(11)は、受支リブ(8a)(8b)の外周に沿って窄まるが、角部においては、ここを近道して切り欠き部(10)に入り込む。締付紐条(11)を挿通した表皮材(７)の挿通部(7a)も、締付紐条(11)に引きずられて切り欠き部(10)に入り込む。
このようにして、表皮材(７)は、クッション材(６)をくるんで、たるみなく基板(５)の裏面に確実に係止され、座部(４)が形成される。
【００１９】
こうして得られた座部(４)は、図３〜図５に示すように、基板(５)の受支リブ(8a)(8b)と係止リブ(９)との間に支持フレーム(３)をはめ込んで、セルフタッピングねじまたはボルト(12)により固定する。この時、表皮材(７)の基板裏側に回り込んだ部分は、基板(５)の裏面と支持フレーム(３)との間、および係止リブ(９)の内側面と支持フレーム(３)との間に挟まれて、係止はさらに確実なものとなり、かつ皺を寄せられた表皮材(７)の周縁部は、支持フレーム(３)により隠される。
【００２０】
【発明の効果】
本発明は、次のような効果を奏する。
請求項１記載の発明によれば、表皮材の基板裏側に回り込んだ部分は、基板の裏面と支持フレームとの間に挟まれて確実に係止され、しかも、表皮材の周縁部が全周に亘って支持フレームにより均一に隠されるので、座板裏面の外観がすぐれたものとなる。
【００２１】
また、締付紐条を引いて緊張させるだけで、クッション材を弛みなくくるんで、表皮材の周縁を基板の裏側で係止することができ、かつ締付紐条は、一定位置より内方へ移動することはない。
【００２２】
さらに、締付紐条及び表皮材の周縁部が、角部において切り欠き部に入り込むので、表皮材の係止がさらに確実なものとなる。
【００２３】
請求項２記載の発明によれば、基板の左右側部および後部の受支リブを、Ｖ字状断面としているので、左右側部および後部の受支リブに荷重に対する屈従性を付与できる。
【００２４】
請求項３記載の発明によれば、ネスティング格納等のために、座板をほぼ垂直位置に起立させて座板の裏面が見える状態となっても、外観を損なうことがない。
【図面の簡単な説明】
【図１】 本発明の座板を備える座板回動式の椅子の側面図である。
【図２】 本発明の座板の分解下方斜視図である。
【図３】 組み立てた状態における本発明の座板の裏面図である。
【図４】 図３のIV−IV線に沿う断面図である。
【図５】 図３のＶ−Ｖ線に沿う拡大断面図で、一部分を省略して示す図である。
【図６】 座部の裏面の角部を示す部分拡大下方斜視図である。
【図７】 座部の裏面を示す下方斜視図である。
【符号の説明】
(Ａ)椅子
(１)座板
(２)脚体
(３)支持フレーム
(４)座部
(５)基板
(６)クッション材
(７)表皮材
(7a)挿通部
(8a)(8b)受支リブ
(９)係止リブ
(10)切り欠き部
(11)締付紐条
(12)セルフタッピングねじまたはボルト[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a seat plate for a chair, and more particularly, to a seat plate that can be used for a chair that can be stored in a nesting manner, that is, can be stored in the front-rear direction. However, the present invention can also be applied to a chair backrest.
[0002]
[Prior art]
Conventionally, to form a seat plate, a cushioning material is provided on the substrate, and the cushioning material and the substrate are covered with a skin material leaving the center of the back surface of the substrate, and formed on the side edges of the skin material. A method of constricting and integrating the peripheral edge of the skin material by passing a flexible fastening string through the cylindrical insertion portion and tensioning it is performed.
[0003]
[Problems to be solved by the invention]
Although such a method for forming the seat plate is rational, the insertion portion of the skin material, that is, the peripheral edge portion does not squeeze uniformly, so that it is somewhat unsightly when the seat plate is viewed from the back surface. In particular, when the chair can be stored in a nesting manner and the seat plate is erected, the appearance of the seat plate is poor because the back surface of the seat plate can be seen from the front.
[0004]
In view of the above problems, an object of the present invention is to provide a seat plate of a chair that reliably holds the skin material that has wrapped around the back surface of the substrate and that has a good appearance on the back surface of the seat plate.
[0005]
[Means for Solving the Problems]
According to the present invention, the above problem is solved as follows.
(1) A seat plate of a chair that is supported by placing a peripheral portion on the back side of a seat portion on a frame-like support frame, and the seat portion has a locking rib along the outer periphery of the support frame. A substrate projecting from the substrate, a cushion material covering the surface side of the substrate, and a skin material covering the cushion material and the peripheral portion of the substrate, and on the back surface of the substrate, on the inner periphery of the support frame In addition to projecting the receiving rib along, a notch is provided from the vertical middle part to the base at the corner of the receiving rib, and a flexible fastening string can be inserted in the periphery of the skin material Providing an insertion portion, engaging the insertion portion through which the tightening string is inserted with the notch, and tensioning the tightening string, thereby allowing the periphery of the skin material to be attached to the support rib. The support frame is squeezed to the outer periphery and the locking rib and the receiving rib It fitted in between the periphery of the skin material of the seat, through the distal end of the locking ribs, sandwiched between the back and the support frame of the substrate, so that obscures the support frame.
(2) In the above item (1), the support ribs at the front portion of the substrate have a plate-like cross section and the support ribs at the left and right side portions and the rear portion of the base portion have a V-shaped cross section.
[0006]
(3) In the above item (1) or (2), the support frame is attached to the legs facing left and right so as to be rotatable between a substantially horizontal state and a substantially vertical state.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a side view of a chair (A) provided with a seat plate (1) of the present invention. In this chair, the seat plate (1) can be rotated from a substantially horizontal state (use position) indicated by a solid line to a substantially vertical state indicated by an imaginary line.
[0008]
FIG. 2 is a lower perspective view showing the seat plate (1) in an exploded state.
The seat plate (1) is composed of a substantially rectangular frame-shaped steel pipe support frame (3) constituting a horizontal portion at the top of the leg (2), and a seat portion (4).
[0009]
The seat portion (4) is composed of a substantially rectangular substrate (5) having a shape corresponding to the support frame (3), a cushion material (6), and a skin material (7).
[0010]
The substrate (5) is an integrally molded product of a hard synthetic resin material. As shown in FIGS. 3 to 5, the central portion (6) is slightly depressed downward, and a large number of small holes are formed in the rear half portion excluding the peripheral portion. The portion corresponding to the buttocks of the seated person to which the weight is loaded is given elasticity.
[0011]
On the back surface of the substrate (5), receiving ribs (8a) and (8b) are projected from a position along the inner periphery of the support frame (3).
As shown in FIGS. 4 to 6, the receiving ribs (8a) formed on the left and right side portions and the rear portion of the substrate (5) are V-shaped, and the substrate (5) has a flexibility to the load. Has been granted. The receiving rib (8b) formed at the front portion of the substrate (5) is a simple protruding rib.
[0012]
A locking rib (9) projects from the peripheral edge of the back surface of the substrate (5) at a position along the outer periphery of the support frame (3). The locking rib (9) presses the peripheral portion of the skin material (7), which will be described later, between the support frame (3) and tensions the skin material (7), and the skin material (7) is exposed to the outside. This is to prevent exposure.
[0013]
As shown in FIG. 6 in an enlarged manner, horizontal notches (10) are formed in the corners of the receiving ribs (8a) and (8b) in the substrate (5) from the middle to the base. Has been.
[0014]
The cushion material (6) is a sheet having an appropriate thickness made of a soft elastic material such as polyurethane foam.
[0015]
The skin material (7) is made of a suitable material such as woven fabric or vinyl leather, for example, and as shown in FIGS. (7a) is formed. A flexible fastening string (11) is inserted into the insertion portion (7a), and both ends thereof are drawn out from the middle of the insertion portion (7a).
[0016]
In forming the seat (4), first, place the skin material (7) upside down on a suitable table, place the cushion material (6) on it, and then turn the substrate (5) upside down. Put as.
[0017]
Next, as shown in FIG. 7, the entire peripheral edge portion of the skin material (7) is folded back to the back surface side of the substrate (5) through the tip of the locking rib (9), and the tightening cord (11) Pull both ends strongly.
[0018]
Then, as shown in FIG. 3 and FIG. 6, the tightening string (11) is narrowed along the outer periphery of the receiving ribs (8a) and (8b). Enter the notch (10). The insertion part (7a) of the skin material (7) inserted through the tightening string (11) is also dragged by the tightening string (11) and enters the notch (10).
In this way, the skin material (7) wraps around the cushion material (6) and is securely latched to the back surface of the substrate (5) without sagging to form the seat (4).
[0019]
As shown in FIGS. 3 to 5, the seat portion (4) thus obtained has a support frame (3) between the receiving ribs (8a) (8b) and the locking rib (9) of the substrate (5). ) And fix with self-tapping screw or bolt (12). At this time, the portion of the skin material (7) that wraps around the back of the substrate is between the back surface of the substrate (5) and the support frame (3), and the inner surface of the locking rib (9) and the support frame (3). And the peripheral portion of the skin material (7) that has been wrinkled is concealed by the support frame (3).
[0020]
【The invention's effect】
The present invention has the following effects.
According to the first aspect of the present invention, the portion of the skin material that wraps around to the back side of the substrate is sandwiched between the back surface of the substrate and the support frame and is securely locked, and the peripheral portion of the skin material is entirely Since it is uniformly hidden by the support frame over the circumference, the appearance of the back surface of the seat plate is excellent.
[0021]
Also, simply by tensioning by pulling the Himojo tightening wrapped without looseness cushion material, the peripheral edge of the skin material Ki de be locked at the back side of the substrate, and the cord Article tightening inner than a certain position Never move towards.
[0022]
Furthermore, since the fastening string and the peripheral portion of the skin material enter the notch portion at the corner, the locking of the skin material is further ensured.
[0023]
According to the second aspect of the present invention, since the left and right side and rear receiving ribs of the substrate have V-shaped cross sections, the left and right side and rear receiving ribs can be provided with flexibility to the load.
[0024]
According to the third aspect of the present invention, even when the seat plate is erected in a substantially vertical position for nesting storage or the like and the back surface of the seat plate is visible, the appearance is not impaired.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a side view of a seat plate rotation type chair provided with a seat plate of the present invention.
FIG. 2 is an exploded lower perspective view of the seat plate of the present invention.
FIG. 3 is a back view of the seat plate of the present invention in an assembled state.
4 is a cross-sectional view taken along line IV-IV in FIG.
FIG. 5 is an enlarged cross-sectional view taken along line VV in FIG.
FIG. 6 is a partially enlarged lower perspective view showing a corner portion of the back surface of the seat portion.
FIG. 7 is a lower perspective view showing the back surface of the seat portion.
[Explanation of symbols]
(A) Chair
(1) Seat plate
(2) Leg
(3) Support frame
(4) Seat
(5) Board
(6) Cushion material
(7) Skin material
(7a) Insertion section
(8a) (8b) Supporting rib
(9) Locking rib
(10) Notch
(11) Tightening string
(12) Self-tapping screw or bolt
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31840499A JP4524014B2 (en) | 1999-11-09 | 1999-11-09 | Chair seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31840499A JP4524014B2 (en) | 1999-11-09 | 1999-11-09 | Chair seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001128805A JP2001128805A (en) | 2001-05-15 |
| JP4524014B2 true JP4524014B2 (en) | 2010-08-11 |
Family
ID=18098783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31840499A Expired - Fee Related JP4524014B2 (en) | 1999-11-09 | 1999-11-09 | Chair seat |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4524014B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004008913A1 (en) * | 2002-07-23 | 2004-01-29 | Okamura Corporation | Construction for attaching net member to chair seat or backrest frame |
| JP4510599B2 (en) * | 2004-11-12 | 2010-07-28 | 株式会社岡村製作所 | Backboard mounting structure for chairs |
| JP5534754B2 (en) * | 2009-09-11 | 2014-07-02 | 愛知株式会社 | Chair support structure |
| KR101373586B1 (en) | 2012-07-27 | 2014-03-13 | (주)한솔스틸 | Method for amking Steel seat and Chair |
| JP2014097179A (en) * | 2012-11-14 | 2014-05-29 | Itoki Corp | Body pressure supporting member, and chair having the same |
| JP6210633B2 (en) * | 2013-09-13 | 2017-10-11 | 株式会社岡村製作所 | Chair |
| JP7223485B2 (en) * | 2018-10-19 | 2023-02-16 | タカノ株式会社 | seat structure and chair |
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|---|---|---|---|---|
| JPH08256872A (en) * | 1995-03-20 | 1996-10-08 | Okamura Corp | Seat of chair |
| JPH10113246A (en) * | 1996-10-15 | 1998-05-06 | Kokuyo Co Ltd | Chair |
| JPH1189663A (en) * | 1997-09-19 | 1999-04-06 | Ikeda Bussan Co Ltd | Terminal processing structure of trim cover |
| JPH11206501A (en) * | 1998-01-29 | 1999-08-03 | Okamura Corp | Seat standing-up/rotating device of chair |
| JPH11276309A (en) * | 1998-03-26 | 1999-10-12 | Okamura Corp | Seat for chair |
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- 1999-11-09 JP JP31840499A patent/JP4524014B2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08256872A (en) * | 1995-03-20 | 1996-10-08 | Okamura Corp | Seat of chair |
| JPH10113246A (en) * | 1996-10-15 | 1998-05-06 | Kokuyo Co Ltd | Chair |
| JPH1189663A (en) * | 1997-09-19 | 1999-04-06 | Ikeda Bussan Co Ltd | Terminal processing structure of trim cover |
| JPH11206501A (en) * | 1998-01-29 | 1999-08-03 | Okamura Corp | Seat standing-up/rotating device of chair |
| JPH11276309A (en) * | 1998-03-26 | 1999-10-12 | Okamura Corp | Seat for chair |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001128805A (en) | 2001-05-15 |
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