JPH02292006A - Production of intergrally molded seat - Google Patents
Production of intergrally molded seatInfo
- Publication number
- JPH02292006A JPH02292006A JP1113038A JP11303889A JPH02292006A JP H02292006 A JPH02292006 A JP H02292006A JP 1113038 A JP1113038 A JP 1113038A JP 11303889 A JP11303889 A JP 11303889A JP H02292006 A JPH02292006 A JP H02292006A
- Authority
- JP
- Japan
- Prior art keywords
- pad
- recess
- cover
- seat
- seat cover
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 23
- 238000000465 moulding Methods 0.000 claims abstract description 14
- 239000010409 thin film Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 7
- 239000010408 film Substances 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000006260 foam Substances 0.000 abstract 1
- 238000007796 conventional method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 210000003491 skin Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は一体成形シートの製造方法に関する．（従来技
術）
一体成形シートは、表皮の裏面にカバーパッドを有して
クッションパッドを被覆するシートカバーを前記クッシ
ョンパッドの成形時に同クッションパッドと一体化して
なるもので、一般に外周に各種部品が嵌合して組付けら
れる局部的な凹所を備えている．
第６図には一体成形シートをシートクッションとする車
両用シートが示されており、当該シートクッションＩＯ
Ａにおいては第７図に示すようにその側部１０ａに局部
的な凹所１０ｂを備え、同四所１０ｂにスイッチベース
１０ｃが嵌合され、クッションフレームにビス止めされ
ている。しかして、シートクッションＩＯＡを製造する
には先づ表皮１１およびカバーバッド１２からなるシー
トカバーを第８図に示すように成形型２１、２２内に発
泡ポリウレタンの原液等を注入してクッションバッド１
３を発泡成形するもので、この際シートカバー（１１、
１２）とクッションバッド１３とが一体化される．
（発明が解決しようとする課題）
ところでかかる製造方法においては、下型２１に設けた
凸部２１ａにシートカバー（１１、１２）が発泡の際生
じる圧力にて押圧され、押圧された部位が凹所１０ｂに
形成される．しかしながら、当該押圧部位においては第
９図に示すように、押圧作用する圧力がシートカバーを
構成するカバーバッド１２を通して成形型から漏洩する
なめ下型２１の凸部２１ａに対する押圧が充分でなく、
凸部２１ａの形状に対応する明瞭な輪郭の凹所が形成さ
れない．このため、凹所１０ｂは組付部品の形状に正確
には対応せず、部品を組付けた場合部品の外周縁と凹所
１０ｂの開口周縁間に幅の広い隙間が生じ、かつ部品の
外側が凹所１０ｂから突出する不具合がある．従って、
本発明の目的はかかる一体成形シートにおいて、上記凹
所を成形型にて設定された凸部に対応する明瞭な輪郭に
形成することにある．
（課題を解決するための手段）
本発明は上記した一体成形シートの製造方法であり、当
該製造方法は前記シートカバーの裏面における前記凹所
の形成部位に非通気性の薄膜を貼着して当該部位に前記
凹所を備えた局部的なパッドブロックを成形し、次いで
前記シートカバーの裏面にてクッションパッドを成形し
て同クッションパッドと前記シートカバーおよびパツド
ブロ・ンクとを一体化することを特徴とするものである
。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for manufacturing an integrally molded sheet. (Prior art) An integrally molded seat is a seat cover that has a cover pad on the back side of the outer skin and is integrated with the cushion pad during molding of the cushion pad, and generally has various parts on the outer periphery. It has a local recess that can be fitted and assembled. FIG. 6 shows a vehicle seat having an integrally molded seat as a seat cushion, and the seat cushion IO
In case A, as shown in FIG. 7, local recesses 10b are provided in the side portion 10a, and switch bases 10c are fitted into the four recesses 10b and fixed to the cushion frame with screws. Therefore, in order to manufacture the seat cushion IOA, first, as shown in FIG.
3 is foam-molded.At this time, the seat cover (11,
12) and the cushion pad 13 are integrated. (Problem to be Solved by the Invention) In this manufacturing method, the seat cover (11, 12) is pressed against the convex portion 21a provided in the lower mold 21 by the pressure generated during foaming, and the pressed portion becomes concave. It is formed at location 10b. However, as shown in FIG. 9 at the pressing area, the pressing pressure is not enough to press against the convex part 21a of the lower tongue mold 21, which leaks from the mold through the cover pad 12 constituting the seat cover.
A recess with a clear outline corresponding to the shape of the convex portion 21a is not formed. For this reason, the recess 10b does not correspond accurately to the shape of the part to be assembled, and when the parts are assembled, a wide gap is created between the outer periphery of the part and the opening periphery of the recess 10b. There is a problem that the part protrudes from the recess 10b. Therefore,
An object of the present invention is to form the recesses in such an integrally molded sheet into a clear outline corresponding to the convex portions set in the mold. (Means for Solving the Problems) The present invention is a method for manufacturing the above-mentioned integrally molded sheet, and the manufacturing method includes attaching a non-breathable thin film to the region where the recess is formed on the back surface of the seat cover. A local pad block having the recess is molded in the region, and then a cushion pad is molded on the back surface of the seat cover to integrate the cushion pad, the seat cover, and the pad block. This is a characteristic feature.
（発明の作用・効果》
かかる製造方法においては、成形型の下型と凹所成形用
の中子を使用してパッドブロックを成形することができ
、成形の際には非通気性の薄膜がパッドブロック成形時
に発生する圧力の漏洩を阻止する．このため、パッドブ
ロックに沿うシートカバーの部位は成形時の発生圧力に
て充分に押圧され、シートカバーと一体のパッドブロッ
クの外側には成形型にて設定された凸部に対応する輪郭
の凹所が形成され、かつ同凹所はその後のクッションパ
ッドの成形には何等影響されることなく明瞭な輪郭を保
持する．
（実施例》
以下本発明に係る製造方法の一例を図面に基づいて説明
するに、第１図（ａ）、（ｂ）、（Ｃ）、（ｄ）には製
造工程の順序が示されかつ第２図にはパッドブロックの
製造手段が示されている．当該製造方法は第３図に示す
車両用シートを構成するシートクッション１０Ｂを製造
する方法であり、シートクッション１０Ｂは第３図およ
び第４図に示すようにその側部１０ｄに局部的な凹所１
０ｅを備えるもので、表皮１４およびカバーバツド１５
からなるシートカバーと、同シートカバー（１４、１５
）と一体のクッションバッド１６と、これら両者の側部
間に一体的に介在するパッドブロック１７とにより構成
されている．シートカバーと一体のパッドブロック１７
はその外側に凹所１０ｅが形成されている．凹所１０ｅ
には第７図に示すシートクッションＩＯＡの凹所１０ｂ
と同様、スイッチベース１０ｃが嵌合されて組付けられ
る．しかして、シートクッションＩＯＢを製造するには
第１図（ａ）〜（ｄ）に示す工程にて行う．先づシ一ト
クッションＩＯＢの成形に先立って第１図（ａ）に示す
ように、シートカバー（１４、１５》の裏面における四
所１０ｅの形成部位すなわちカバーパッド１５の裏面に
非通気性のフイルム１８を貼着する。次いでこのシート
カバー（１４、１５）を成形型の下型２１の型面上に第
１図（ｂ）に示すようにセットするとともに、パッドブ
ロックの成形用中子２３をカバーバッド１５のフイルム
１８貼着部位にセットし、第１図（Ｃ）に示すように下
型２１と中子２３間に発泡ポリウレタンの原液を注入し
てパッドブロックを発泡成形する．成形されたパッドブ
ロック１７はカバーパツド１５と一体となる．最後に中
千２３を取外して第１図（ｄ）に示すように上型２２を
セットし、下型２１と上型２２間に上記原液を注入して
クッションパッド１６を発泡成形する．成形されたクッ
ションバッド１６およびパッドブロック１７は一体とな
る．第２図にはパッドブロック１７の成形状態が示され
ており、かかる成形時シートカバーにおける中子２３に
対応する部位が中子２３内に発生する圧力にて下型２１
の凸部２１ａに押圧され、シートカバーと一体のパッド
ブロックの外側に凹所が形成される．しかして、シート
カバーにおける中千２３に対応する部位には非通気性の
フイルム１８が貼着されて、同フイルム１８にてシート
カバーを構成するカバーパッド１５が中千２３内から遮
断されるため、中子２３内の発生圧力はカバーバッドｌ
５を通して外部に漏洩することなくシートカバーを下型
２１の凸部２１ａに対して充分に押圧する．この結果、
形成される凹所１０ｅは凸部２１ａに対応する明瞭な輪
郭のものとなり、かつその後のクッションパッド１６の
成形にも何等影響されることなく明瞭な輪郭を保持する
．従って、かかる凹所１０ｅはスイッチベース１０ｃの
形状にほぼ正確に対応し、スイッチベース１０Ｃの外周
縁と凹所１０ｅの開口周縁間に生ずる隙間は極めて狭く
、スイッチベース１０ｃが確実に嵌合して凹所１０ｅか
ら外側へ突出することはない．
なお、本実施例においては車両用シートのシートクッシ
ョンの製造方法の一例を示したが、本発明の製造方法は
シートパック、その他の成形シートの製造に採用し得る
ことは勿論であり、例えば第５図に示すシートバック１
０Ｃの製造に好適である．当該シートバック１０Ｃはヘ
ッドレスト１０Ｄを組付けられるが、同バック１０Ｇの
頂部にヘッドレストＩＯＣを摺動可能に支持するための
支持部材１０ｆが嵌合して組付けちれる凹所１０ｇを備
えている．当該シートバック１０Ｃの製造に本発明の製
造方法を採用すれば、凹所１０ｇを支持部材１０ｆの形
状に対応する明確な輪郭のものに形成することができる
．(Operations and Effects of the Invention) In this manufacturing method, a pad block can be molded using the lower die of the mold and the core for molding the recess, and a non-porous thin film is formed during molding. This prevents leakage of pressure generated during pad block molding.For this reason, the parts of the seat cover along the pad block are sufficiently pressed by the pressure generated during molding, and the mold is placed on the outside of the pad block that is integrated with the seat cover. A recess with a contour corresponding to the convex part set in is formed, and the recess maintains a clear outline without being affected by the subsequent molding of the cushion pad. An example of the manufacturing method according to the invention will be explained based on the drawings. FIGS. 1(a), (b), (C), and (d) show the order of manufacturing steps, and FIG. A means for manufacturing the block is shown.The manufacturing method is a method for manufacturing a seat cushion 10B constituting a vehicle seat shown in FIG. Local recess 1 in its side 10d
0e, with a skin 14 and a cover butt 15.
A seat cover consisting of the same seat cover (14, 15
), and a pad block 17 integrally interposed between the side parts of both. Pad block 17 integrated with seat cover
A recess 10e is formed on the outside. Recess 10e
The recess 10b of the seat cushion IOA shown in FIG.
Similarly, the switch base 10c is fitted and assembled. In order to manufacture the seat cushion IOB, the steps shown in FIGS. 1(a) to (d) are performed. First, prior to molding the seat cushion IOB, as shown in FIG. 1(a), a non-breathable material is placed on the back surface of the seat cover (14, 15) where the four locations 10e are formed, that is, on the back surface of the cover pad 15. The film 18 is pasted.Then, the sheet cover (14, 15) is set on the mold surface of the lower mold 21 of the mold as shown in FIG. 1(b), and the molding core 23 of the pad block is is set on the part of the cover pad 15 where the film 18 is attached, and as shown in FIG. The pad block 17 is integrated with the cover pad 15.Finally, the inner mold 23 is removed, the upper mold 22 is set as shown in FIG. 1(d), and the stock solution is poured between the lower mold 21 and the upper mold 22. The cushion pad 16 is foam-molded.The molded cushion pad 16 and pad block 17 are integrated.The molded state of the pad block 17 is shown in FIG. The part corresponding to 23 is pressed against the lower mold 21 by the pressure generated inside the core 23.
A recess is formed on the outside of the pad block that is integrated with the seat cover. Therefore, a non-breathable film 18 is attached to a portion of the seat cover corresponding to the middle part 23, and the cover pad 15 constituting the seat cover is blocked from inside the middle part 23 by the film 18. , the pressure generated inside the core 23 is the cover pad l
The seat cover is sufficiently pressed against the convex portion 21a of the lower mold 21 without leaking to the outside through the mold 5. As a result,
The formed recess 10e has a clear outline corresponding to the convex part 21a, and maintains a clear outline without being affected by the subsequent molding of the cushion pad 16. Therefore, the recess 10e corresponds almost exactly to the shape of the switch base 10c, and the gap between the outer periphery of the switch base 10C and the opening periphery of the recess 10e is extremely narrow, ensuring that the switch base 10c is fitted securely. It does not protrude outward from the recess 10e. Although this example shows an example of a method for manufacturing a seat cushion for a vehicle seat, it goes without saying that the manufacturing method of the present invention can be applied to manufacturing seat packs and other molded seats. Seat back 1 shown in Figure 5
Suitable for manufacturing 0C. The seat back 10C has a headrest 10D installed therein, and the top of the back 10G has a recess 10g into which a support member 10f for slidably supporting the headrest IOC is fitted and assembled. If the manufacturing method of the present invention is adopted for manufacturing the seat back 10C, the recess 10g can be formed to have a clear outline corresponding to the shape of the support member 10f.
第１図（ａ）〜（ｄ）は本発明の一例に係る製造方法の
工程図、第２図は第１図（ｃ）の矢印■部分の拡大断面
図、第３図は本発明の製造方法にて製造されたシートク
ッションを備えた車両用シートの斜視図、第４図は第３
図の矢印ＩＶ−ＩＶ線方向の拡大縦断面図、第５図は本
発明が製造対象とするシートバックの部分縦断斜視図、
第６図は従来法にて製造したシートクッションを備えた
車両用シートの斜視図、第７図は第６図の矢印■一■線
方向の拡大断面図、第８図は従来法を説明する第１図（
ｄ）に対応する部分断面図、第９図は第８図の矢印Ｘ部
分の拡大断面図である．符号の説明
１０Ａ、ＩＯＢ・・・シートクッシジン、１０Ｃ・シー
トバック、１０ｂ、１０ｅ、１０ｇ−・凹所、１１、１
４、・・・表皮、１２、１５・カバーパッド、ｌ３、ｌ
６・・・クッションパッド、１７・・・パッドブロック
、１８・・フイルム、２１・・・下型、２１ａ・・・凸
部、２２・・・上型、２３・・・中子．1(a) to 1(d) are process diagrams of a manufacturing method according to an example of the present invention, FIG. 2 is an enlarged sectional view of the arrow ■ portion in FIG. 1(c), and FIG. 3 is a manufacturing process of the present invention. A perspective view of a vehicle seat equipped with a seat cushion manufactured by the method, FIG.
An enlarged vertical sectional view in the direction of the arrow IV-IV in the figure, FIG. 5 is a partial vertical sectional perspective view of the seat back to be manufactured by the present invention,
Fig. 6 is a perspective view of a vehicle seat equipped with a seat cushion manufactured by the conventional method, Fig. 7 is an enlarged cross-sectional view in the direction of the arrows 1 and 2 in Fig. 6, and Fig. 8 explains the conventional method. Figure 1 (
9 is an enlarged sectional view of the portion indicated by the arrow X in FIG. 8. Description of symbols 10A, IOB... Seat cushion, 10C, seat back, 10b, 10e, 10g-- recess, 11, 1
4,... Epidermis, 12, 15・Cover pad, l3, l
6... Cushion pad, 17... Pad block, 18... Film, 21... Lower die, 21a... Convex portion, 22... Upper die, 23... Core.
Claims (1)
被覆するシートカバーを前記クッションパッドの成形時
に同クッションパッドと一体化してなり、外周に各種部
品が嵌合して組付けられる局部的な凹所を備えた一体成
形シートの製造方法であり、前記シートカバーの裏面に
おける前記凹所の形成部位に非通気性の薄膜を貼着して
当該部位に前記凹所を備えた局部的なパッドブロックを
成形し、次いで前記シートカバーの裏面にてクッション
パッドを成形して同クッションパッドと前記シートカバ
ーおよびパッドブロックとを一体化することを特徴とす
る一体成形シートの製造方法。A seat cover that has a cover pad on the back surface of the outer skin and covers the cushion pad is integrated with the cushion pad when the cushion pad is molded, and is a local recess into which various parts are fitted and assembled on the outer periphery. A method for manufacturing an integrally molded sheet comprising the steps of: adhering an air-impermeable thin film to a region on the back surface of the seat cover where the recess is formed, and forming a local pad block with the recess in the region; A method for producing an integrally molded seat, comprising: molding the seat cover, and then molding a cushion pad on the back surface of the seat cover to integrate the cushion pad, the seat cover, and the pad block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1113038A JP2939266B2 (en) | 1989-05-02 | 1989-05-02 | Manufacturing method of integrally molded sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1113038A JP2939266B2 (en) | 1989-05-02 | 1989-05-02 | Manufacturing method of integrally molded sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02292006A true JPH02292006A (en) | 1990-12-03 |
| JP2939266B2 JP2939266B2 (en) | 1999-08-25 |
Family
ID=14601907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1113038A Expired - Fee Related JP2939266B2 (en) | 1989-05-02 | 1989-05-02 | Manufacturing method of integrally molded sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2939266B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008521641A (en) * | 2004-11-29 | 2008-06-26 | モレルテク エスアーエス | Method for producing a multilayer part with a flexible local area, for example for use as the interior of an automobile vehicle |
| JP2014162427A (en) * | 2013-02-27 | 2014-09-08 | Toyota Boshoku Corp | Seat constitution member and method of manufacturing the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5884738A (en) * | 1981-11-16 | 1983-05-20 | Toyo Rubber Chem Ind Co Ltd | Manufacture of molded cushion body |
-
1989
- 1989-05-02 JP JP1113038A patent/JP2939266B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5884738A (en) * | 1981-11-16 | 1983-05-20 | Toyo Rubber Chem Ind Co Ltd | Manufacture of molded cushion body |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008521641A (en) * | 2004-11-29 | 2008-06-26 | モレルテク エスアーエス | Method for producing a multilayer part with a flexible local area, for example for use as the interior of an automobile vehicle |
| JP2014162427A (en) * | 2013-02-27 | 2014-09-08 | Toyota Boshoku Corp | Seat constitution member and method of manufacturing the same |
| US10220550B2 (en) | 2013-02-27 | 2019-03-05 | Toyota Boshoku Kabushiki Kaisha | Seat structure member and manufacturing method of same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2939266B2 (en) | 1999-08-25 |
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