JP4009703B2 - Seat having a seating surface by a planar elastic body - Google Patents

Seat having a seating surface by a planar elastic body Download PDF

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Publication number
JP4009703B2
JP4009703B2 JP26771197A JP26771197A JP4009703B2 JP 4009703 B2 JP4009703 B2 JP 4009703B2 JP 26771197 A JP26771197 A JP 26771197A JP 26771197 A JP26771197 A JP 26771197A JP 4009703 B2 JP4009703 B2 JP 4009703B2
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JP
Japan
Prior art keywords
seat
elastic body
frame
bank
planar elastic
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
Application number
JP26771197A
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Japanese (ja)
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JPH1175985A (en
Inventor
勉 松崎
稔 前田
広明 長谷川
直弘 高橋
励 青
大輔 須佐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
TS Tech Co Ltd
Original Assignee
Honda Motor Co Ltd
TS Tech Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd, TS Tech Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP26771197A priority Critical patent/JP4009703B2/en
Publication of JPH1175985A publication Critical patent/JPH1175985A/en
Application granted granted Critical
Publication of JP4009703B2 publication Critical patent/JP4009703B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Chair Legs, Seat Parts, And Backrests (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、伸縮性のある面状弾性体から座面を形成する面状弾性体による座面を有するシートに関するものである。
【0002】
【従来の技術】
既に、所定の軸線形状に軸線曲げされた各辺部から略四辺形の枠状に形成されたシートフレームを備え、伸縮性のある面状弾性体をシートフレームの枠内に張設することにより座面を形成するシートは提案されている(USP5,013,089、同5,533,789、特表平8ー507935号)。
【0003】
そのシートは座面を面状弾性体で形成するものであるから、通気性を付与できると共に、パッド材やテンションスプリング等の構成部材を省け、デザイン的にも通常のシートと異なる特殊性を持たせられる。また、面状弾性体が薄いため、シート全体の軽量化を図れてスペース効率もよい点で好ましい。
【0004】
然し、先に提案されているシートでは土手部がほとんど設けられていないため、着座時のホールド性に欠ける。
【0005】
【発明が解決しようとする課題】
本発明は、伸縮性のある面状弾性体をシートフレームの枠内に張設することにより座面を形成すると共に、座面より***する土手部を簡略な構成で設けて着座時のホールド性を良好に保ち、また、土手部を含むシート全体を堅牢なものに組立可能な面状弾性体による座面を有するシートを提供することを目的とする。
【0006】
【課題を解決するための手段】
本発明に係る面状弾性体による座面を有するシートにおいては、シートフレームを基枠とし、面状弾性体の周端縁を取り込んで一体成形した土手基部と、該土手基部を内部に収容させて中空立体形に形成された外皮と、該外皮の内部に装填されて外皮をクッション体として立体形に保形するパッド部とから、土手部をシートフレームの軸線上に一体に設けることにより構成されている。
【0007】
【発明の実施の形態】
以下、添付図面を参照して説明すると、図示実施の形態は図1で示すように車両用シートにおいてシートバックB並びにシートクッションCの座面b,cを面状弾性体で形成すると共に、その座面b,cの周囲を取り囲む如く土手部b,cを設けるのに適用されている。
【0008】
この車両用シートは、人体の着座姿勢に適合するよう所定の軸線形状に軸線曲げされた各辺部から略四辺形の枠状に形成されたシートフレームを基枠として組み立てられている。
【0009】
そのシートは図2で示すシートバックBで説明すると、座面bが伸縮性のある布地の面状弾性体1で形成されている。この面状弾性体1としては、例えば内装織物に使用される繊維状ヤーンからなる複数のストランドを交織した複数のエラストマーモノフィラメントで形成したものを用いるようにできる。また、1000〜4000デニールのエラストマーモノフィラメントを経糸また緯糸に用いることにより伸縮性を付与した織物または編物を用いるようにできる。
【0010】
そのシートバックBは、金属パイプのシートバックフレーム2(以下、「パイプフレーム」という。)を基枠に構成されている。また、図3で示すようにパイプフレーム2の軸線を内部に埋込み挿通すると共に、面状弾性体1を端末で一体に接合させて面状弾性体1を内側に張設支持する土手基部30を樹脂成形し、そのシートバックフレーム2と一体の土手基部30を外皮31の内部に収容することにより座面bより膨出***する土手部bが設けられている。
【0011】
土手基部30は、ポリプロピレンやポリエチレンテレフタレート等の合成樹脂からパイプフレーム2の軸線を内部にインサートさせてインジェクション成形することによりパイプフレーム2の軸線に沿って一体に樹脂成形することができる。また、面状弾性体1は端末をクランプ等で挟んで全体を適度な張力で周囲より引張支持することによりインジェクション成形型に組み付け、その端末側を土手基部30の表面側に敷き込んで土手基部30をインジェクション成形することから土手基部30と一体に接合させて内側に張設固定することができる。
【0012】
外皮31は、人体の上半身を着座姿勢で両側部から安定よく支持可能な***度合いを持って座面bより膨出***する中空立体形に樹脂成形されている。その外皮31は軟質なゴム系の樹脂材料から形成し、例えば熱可塑性エラストマー等を用いてブロー成形することができる。この外皮31をブロー成形するには、土手基部30の内側縁より座面bの裏側に伸びる薄肉状のフランジ部30aを土手基部30に設け、フランジ部30aの先端側30bをブロー成形によるパリソンの食切り部として外皮31を形成するとよい。
【0013】
外皮31は、土手基部30を内部に収容すると共に、パッド部32を内部に設けることによりクッション体として立体形に保形形成されている。このパッド部32は、発泡ウレタン,ファイバー綿,発泡ビーズ等のパッド材をブロー成形穴より外皮31の内部に装填させてパイプフレーム2の軸線を埋め込むことから、所定の***形状を有する土手部bとしてパイプフレーム2の軸線上に一体に設けることができる。
【0014】
このように構成するシートバックでは、人体の上半身を着座姿勢で両側部から安定よく支持可能な***度合いを持って面状弾性体1による座面bより膨出***する土手部bを設けることにより着座時のホールド性を良好に保つことができる。また、土手部bはパイプフレーム2を基枠として土手基部30を内部に収容する中空立体形の外皮31と、外皮31の内部に装填されるパッド部32とから、外皮31をクッション体として立体形に保形させて所定の***形状を有するようパイプフレーム2の軸線上に一体に設けるものであるため、クッション性が良好で土手部bを含むシート全体を簡略な構成で堅牢に組み立てることができる。
【0015】
それに加えて、パイプフレーム2には土手基部30を一体に樹脂成形し、土手基部30を受け座として面状弾性体1を端末で接合することにより面状弾性体1を内側に張設支持するから、面状弾性体1を適度なテンションでパイプフレーム2の内側に安定よく張設支持することができる。
【0016】
外皮31をブロー成形するときには、土手基部30の内側縁より座面bの裏側に伸びる薄肉状のフランジ部30aを土手基部30に設け、このフランジ部30aの先端寄り30bをブロー成形によるパリソンの食切り部とするため、面状弾性体1をパリソンの食い切りに伴って傷付けるのを防ぐことができる。また、その薄肉状のフランジ部30aは座者の荷重で撓み変形するから使用に伴う面状弾性体1の傷付けも防ぐことができる。
【0017】
上述した実施の形態の他に、土手部bには図4で示すように布地等の表皮材33を外皮31の座面bより***する湾曲面に被着することができる。この表皮材33は、外皮31をブロー成形する時に型内に挿置することにより一体に接合成形することができる。その表皮材33を備えると、軟質なゴム系の樹脂材料から形成する外皮31と共に、土手部bの触感を良好なものにできて装飾性も向上することができる。
【0018】
上述した各部構成は、図5で示すシートクッションCにも共通に適用することができる。このシートクッションCでは、パイプフレーム2によるシートクッションフレームを基枠にし、そのパイプフレーム2の軸線を内部に埋め込んで面状弾性体1を内側に張設支持する土手基部30を樹脂成形し、人体の大腿部から腰回りを着座姿勢で安定よく支持可能な***度合いを持って面状弾性体1による座面bより膨出***する外皮31をパッド部32でクッション体として保形することにより土手部bが設けられている。
【0019】
【発明の効果】
以上の如く、本発明に係る面状弾性体による座面を有するシートに依れば、シートフレームを基枠とし、面状弾性体の周端縁を取り込んで一体成形した土手基部と、土手基部を内部に収容させて中空立体形に形成された外皮と、外皮の内部に装填されて外皮をクッション体として立体形に保形するパッド部とから、土手部をシートフレームの軸線上に一体に設けるため、人体を着座姿勢で安定よく支持可能な***度合いを持って面状弾性体による座面より膨出***する土手部を設けられて着座時のホールド性を良好に保て、また、シートフレームを基枠として土手基部を収容する土手部をシートフレームの軸線上に一体に設けることから、土手部を含むシート全体を簡略な構成で堅牢に組み立てられる。
【図面の簡単な説明】
【図1】 本発明に係る面状弾性体による座面を有するシートを示す外様斜視図である。
【図2】 図1のシートバックを示す部分切欠斜視図である。
【図3】 図2のシートバックをAーA線で示す部分拡大断面図である。
【図4】 図2のシートバックの別の形態をAーA線で示す部分拡大断面図である。
【図5】 図1のシートクッションを示す部分切欠斜視図である。
【符号の説明】
,c 座面
,c 土手部
1 面状弾性体
2 シートフレーム
30 土手基部
31 外皮
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sheet having a seating surface by a planar elastic body that forms a seating surface from a stretchable planar elastic body.
[0002]
[Prior art]
Already equipped with a seat frame formed into a substantially quadrangular frame shape from each side portion that has been axially bent into a predetermined axial shape, and by stretching a stretchable planar elastic body within the frame of the seat frame Sheets for forming a seating surface have been proposed (USP 5,013,089, 5,533,789, JP-T-8-507935).
[0003]
Since the seat has a seating surface made of a sheet-like elastic body, it can provide breathability, and it eliminates components such as pad materials and tension springs, and has a design that is different from ordinary seats. It is made. Further, since the planar elastic body is thin, it is preferable in that the entire sheet can be reduced in weight and space efficiency is good.
[0004]
However, in the seat proposed previously, the bank portion is hardly provided, so that the holding property at the time of sitting is lacking.
[0005]
[Problems to be solved by the invention]
The present invention forms a seating surface by stretching a stretchable planar elastic body in the frame of a seat frame, and provides a bank portion that protrudes from the seating surface with a simple configuration to hold the seated seat. It is another object of the present invention to provide a sheet having a seating surface by a planar elastic body that can keep the sheet in good condition and can assemble the entire sheet including the bank portion into a robust one.
[0006]
[Means for Solving the Problems]
In a seat having a seating surface by a planar elastic body according to the present invention, a bank base that is formed integrally with a seat frame as a base frame, taking in a peripheral edge of the planar elastic body, and the bank base is accommodated inside. A hollow solid body and a pad portion that is loaded inside the outer skin and holds the outer skin in a three-dimensional shape with the outer skin as a cushion body, and is configured by integrally providing a bank portion on the axis of the seat frame Has been.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the accompanying drawings, in the illustrated embodiment, seat surfaces b 1 and c 1 of a seat back B and a seat cushion C are formed of a sheet-like elastic body in a vehicle seat as shown in FIG. The bank portions b 2 and c 2 are applied so as to surround the peripheries of the seat surfaces b 1 and c 1 .
[0008]
This vehicle seat is assembled with a base frame as a seat frame formed in a substantially quadrangular frame shape from each side portion that is axially bent into a predetermined axial shape so as to match the seating posture of the human body.
[0009]
The seat will be described with a seat back B shown in FIG. 2. The seat surface b 1 is formed of a sheet-like elastic body 1 of stretchable fabric. As the planar elastic body 1, for example, one formed by a plurality of elastomer monofilaments obtained by interweaving a plurality of strands made of fibrous yarn used for an interior fabric can be used. Further, it is possible to use a woven or knitted fabric imparted with stretchability by using 1000 to 4000 denier elastomer monofilament for warp or weft.
[0010]
The seat back B is configured with a metal pipe seat back frame 2 (hereinafter referred to as a “pipe frame”) as a base frame. Further, as shown in FIG. 3, an embedding base portion 30 for embedding and inserting the axis of the pipe frame 2 into the inside and joining the planar elastic body 1 integrally at the terminal to stretch and support the planar elastic body 1 inside is provided. A bank portion b 2 bulging and protruding from the seat surface b 1 is provided by molding the resin and accommodating the bank base portion 30 integral with the seat back frame 2 inside the outer skin 31.
[0011]
The bank base 30 can be integrally molded along the axis of the pipe frame 2 by inserting the axis of the pipe frame 2 from a synthetic resin such as polypropylene or polyethylene terephthalate into the inside and performing injection molding. The planar elastic body 1 is assembled to an injection molding die by sandwiching the end with a clamp or the like and pulling and supporting the whole from the surroundings with an appropriate tension, and the end side is laid on the surface side of the bank base 30 and the bank base Since 30 is injection-molded, it can be joined integrally with the bank base 30 and stretched and fixed inside.
[0012]
The outer skin 31 is resin-molded into a hollow three-dimensional shape that bulges and protrudes from the seat surface b 1 with a degree of protrusion that can stably support the upper body of the human body from both sides in a sitting posture. The outer skin 31 is formed from a soft rubber-based resin material and can be blow-molded using, for example, a thermoplastic elastomer. The outer skin 31 to blow molding is provided with a thin-walled flange portion 30a extending from the inner edge of the bank base 30 on the back side of the seat surface b 1 on the bank base 30, the parison tip end 30b of the flange portion 30a by blow molding It is preferable to form the outer skin 31 as a cutting portion.
[0013]
The outer skin 31 accommodates the bank base 30 inside and is formed in a three-dimensional shape as a cushion body by providing a pad portion 32 therein. The pad portion 32 is made of a pad material such as foamed urethane, fiber cotton, foamed beads, etc., which is embedded in the outer skin 31 through the blow-molded hole and embeds the axis of the pipe frame 2. 2 can be integrally provided on the axis of the pipe frame 2.
[0014]
In the seat back configured as described above, a bank portion b 2 that bulges and protrudes from the seat surface b 1 by the planar elastic body 1 is provided with a degree of protrusion capable of stably supporting the upper body of the human body from both sides in a sitting posture. Therefore, the holdability at the time of sitting can be kept good. Further, the bank b 2 includes a hollow solid outer skin 31 that accommodates the bank base 30 inside the pipe frame 2 as a base frame, and a pad portion 32 that is loaded inside the outer skin 31, and uses the outer skin 31 as a cushion body. since by shape retaining the three dimensional those provided integrally on the axis of the pipe frame 2 so as to have a predetermined ridge shape, rigidly assembled with a simple configuration the entire sheet including the bank portion b 2 a cushioning good be able to.
[0015]
In addition, the bank base 30 is integrally formed with the pipe frame 2 by resin molding, and the surface elastic body 1 is stretched and supported on the inside by joining the surface elastic body 1 with a terminal using the bank base 30 as a seat. Therefore, the planar elastic body 1 can be stably stretched and supported inside the pipe frame 2 with an appropriate tension.
[0016]
The outer skin 31 when blow molding is provided with a thin-walled flange portion 30a extending in the back of the seat surface b 1 from the inner edge of the bank base 30 on the bank base 30, the parison tip-sided 30b of the flange portion 30a by blow molding Since the cut-off portion is formed, it is possible to prevent the planar elastic body 1 from being damaged due to the cut-off of the parison. Further, since the thin flange portion 30a is bent and deformed by the load of the seated person, it is possible to prevent the surface elastic body 1 from being damaged due to use.
[0017]
In addition to the embodiment described above, a cover material 33 such as a cloth can be attached to the bank b 2 on a curved surface that protrudes from the seat surface b 1 of the outer skin 31 as shown in FIG. The skin material 33 can be integrally formed by being inserted into the mold when the outer skin 31 is blow-molded. When provided with the skin material 33, together with the outer skin 31 to form a resin material soft rubber, made tactile bank portion b 2 to the favorable also decorativeness it can be improved.
[0018]
Each part structure mentioned above is applicable also to the seat cushion C shown in FIG. In this seat cushion C, a seat cushion frame formed by a pipe frame 2 is used as a base frame, and the bank base 30 that embeds the axis of the pipe frame 2 inside and supports the planar elastic body 1 inward is formed by resin molding. The outer skin 31 that bulges and protrudes from the seating surface b 1 by the planar elastic body 1 with a degree of bulging that can stably support the waist around the thigh from the thigh is held by the pad portion 32 as a cushion body. bank portion b 2 is provided by.
[0019]
【The invention's effect】
As described above, according to the seat having the seating surface of the planar elastic body according to the present invention, the bank base, which is integrally formed with the seat frame as a base frame and taking in the peripheral edge of the planar elastic body, and the bank base The bank is integrated on the axis of the seat frame from the outer shell formed into a hollow three-dimensional shape and the pad portion that is loaded inside the outer shell and keeps the outer shell as a cushion body in a three-dimensional shape. Since it is provided with a bank part that bulges and protrudes from the seating surface by a planar elastic body with a degree of bulging that can stably support the human body in the sitting posture, the holding property at the time of sitting is kept good, and the seat Since the bank portion for accommodating the bank base portion is integrally provided on the axis of the seat frame using the frame as a base frame, the entire seat including the bank portion can be firmly assembled with a simple configuration.
[Brief description of the drawings]
FIG. 1 is an external perspective view showing a seat having a seating surface by a planar elastic body according to the present invention.
2 is a partially cutaway perspective view showing the seat back of FIG. 1. FIG.
3 is a partially enlarged cross-sectional view showing the seat back of FIG. 2 along the line AA. FIG.
4 is a partially enlarged cross-sectional view showing another form of the seat back of FIG. 2 along the line AA. FIG.
5 is a partially cutaway perspective view showing the seat cushion of FIG. 1. FIG.
[Explanation of symbols]
b 1 , c 1 seat surface b 2 , c 2 bank part 1 planar elastic body 2 seat frame 30 bank base 31 outer skin

Claims (1)

伸縮性のある面状弾性体をシートフレームの枠内に張設することにより座面を形成する面状弾性体による座面を有するシートにおいて、
シートフレームを基枠とし、面状弾性体の周端縁を取り込んで一体成形した土手基部と、該土手基部を内部に収容させて中空立体形に形成された外皮と、該外皮の内部に装填されて外皮をクッション体として立体形に保形するパッド部とから、土手部をシートフレームの軸線上に一体に設けたことを特徴とする面状弾性体による座面を有するシート。
In a seat having a seating surface by a planar elastic body that forms a seating surface by stretching a stretchable planar elastic body in the frame of the seat frame,
A bank base that is formed integrally with the seat frame as a base frame, taking in the peripheral edge of the planar elastic body, a shell formed into a hollow three-dimensional shape with the bank base housed inside, and loaded inside the shell A seat having a seating surface by a planar elastic body, wherein a bank portion is integrally provided on an axis of a seat frame from a pad portion which is formed into a three-dimensional shape with an outer skin as a cushion body.
JP26771197A 1997-09-12 1997-09-12 Seat having a seating surface by a planar elastic body Expired - Fee Related JP4009703B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26771197A JP4009703B2 (en) 1997-09-12 1997-09-12 Seat having a seating surface by a planar elastic body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26771197A JP4009703B2 (en) 1997-09-12 1997-09-12 Seat having a seating surface by a planar elastic body

Publications (2)

Publication Number Publication Date
JPH1175985A JPH1175985A (en) 1999-03-23
JP4009703B2 true JP4009703B2 (en) 2007-11-21

Family

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JP26771197A Expired - Fee Related JP4009703B2 (en) 1997-09-12 1997-09-12 Seat having a seating surface by a planar elastic body

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