JP2005288699A - Skin integrated foam molding structure of headrest - Google Patents

Skin integrated foam molding structure of headrest Download PDF

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Publication number
JP2005288699A
JP2005288699A JP2004102424A JP2004102424A JP2005288699A JP 2005288699 A JP2005288699 A JP 2005288699A JP 2004102424 A JP2004102424 A JP 2004102424A JP 2004102424 A JP2004102424 A JP 2004102424A JP 2005288699 A JP2005288699 A JP 2005288699A
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headrest
mold
skin
movable piece
stay
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JP3789921B2 (en
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Kenzo Hibino
賢蔵 日比野
Takeshi Tabata
毅 田畑
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Tachi S Co Ltd
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Tachi S Co Ltd
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  • Molding Of Porous Articles (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate the demolding of a headrest comprising an almost L-shaped skin integrated foam molded product. <P>SOLUTION: A movable piece 1, which slides in a direction retreating with respect to the rear surface 101 of the front part H1 of an L-shaped headrest H after molding, is provided to a mold 2 for molding the rear surface 101 of the front part H1 of the L-shaped headrest H. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は前面部とこの前面部の上部より後方に向けて一体に延設した頂部を有し、この頂部の底面より内部にステーが挿入される略Ｌ字状のヘッドレスト成形用の表皮一体発泡成形型構造に関する。   The present invention has a front surface portion and a top portion integrally extending rearward from the upper portion of the front surface portion, and a substantially L-shaped headrest-molded foam for forming a headrest into which a stay is inserted from the bottom surface of the top portion. The present invention relates to a mold structure.

従来のヘッドレストには、例えば、特開平１１ー２９０１５４号公報に開示されているように、前面部と、この前面部の上部より後方に向けて一体に延設した頂部とからなる側面略Ｌ字状のものが知られている。   For example, as disclosed in Japanese Patent Application Laid-Open No. 11-290154, a conventional headrest has a substantially L-shaped side surface that includes a front surface portion and a top portion that integrally extends rearward from the upper portion of the front surface portion. The shape is known.

これは、前面部の後面と頂部の底面とを剛性を有する板で成形し、この板にステーを接続している。   In this method, the rear surface of the front portion and the bottom surface of the top portion are formed of a rigid plate, and a stay is connected to the plate.

一方、特開平１０ー３２９１５１号公報に開示されているように、ヘッドレストを表皮一体発泡成形型で成形したものが開示されている。   On the other hand, as disclosed in Japanese Patent Laid-Open No. 10-329151, there is disclosed a headrest molded with a skin-integrated foaming mold.

特開平１１−２９０１５４号JP-A-11-290154 特開平１０−３２９１５１号JP-A-10-329151

前記前者はヘッドレストを表皮一体発泡成形型で成形しているが、ヘッドレストを発泡成形型で成形する際、ステーを一体に発泡成形型にセットして成形すると、ステーと成形時のヘッドレストの前面部後面との間に介在する成形型の一部により、成形後のヘッドレストの脱型が行い難い不具合がある。   In the former, the headrest is molded with a skin-integrated foam mold, but when the headrest is molded with the foam mold, the stay and the front portion of the headrest during molding are formed when the stay is integrally set in the foam mold. There is a problem that it is difficult to remove the headrest after molding due to a part of the molding die interposed between the rear surface and the rear surface.

一方、Ｌ字状のヘッドレストでない後者の如く、ステーをヘッドレストの底面形状に合致する保形板に挿通することにより、保形板と共にステー付のヘッドレストを容易に脱型できるが、側面略Ｌ字状のヘッドレストに使用すると、略Ｌ字状のヘッドレストはその前面部の上下方向の長さが長いため、ステーから保形板を脱出する際、或いは、発泡成形前に保形板にステーを挿通する際における作業性が頗る悪い不具合が生じる。   On the other hand, like the latter which is not an L-shaped headrest, the headrest with the stay can be easily removed together with the shape retaining plate by inserting the stay into the shape retaining plate that matches the bottom shape of the headrest. When the headrest is used as a headrest, the L-shaped headrest has a long front surface, and the length of the front part is long. Therefore, when the shape-retaining plate is withdrawn from the stay or before foam molding, the stay is inserted into the shape-retaining plate. This causes a bad problem that the workability is poor.

そこで、本発明は側面Ｌ字状で内部にステーを有するヘッドレストの表皮一体発泡成形型において、ヘッドレスト成形後の脱型を容易にすることを目的とする。   Accordingly, an object of the present invention is to facilitate demolding after headrest molding in a headrest skin-integrated foaming mold having an L-shaped side surface and having a stay inside.

以上の目的を達成するための本発明に係るヘッドレストの表皮一体発泡成形型構造は、前面部とこの前面部の上部より後方に向けて一体に延設した頂部とからなる略Ｌ字状中空形態の表皮における頂部の底面より表皮内部にステーを挿入した後、表皮内に発泡液を注入して成形するヘッドレストの表皮一体発泡成形型であって、該成形型における前面部の後面側を成形する部分に、前後方向にスライドする可動片を設けて、脱型時に可動片を後退させる構成である。   To achieve the above object, the headrest-integrated foam-molding mold structure of the headrest according to the present invention has a substantially L-shaped hollow form comprising a front portion and a top portion integrally extending rearward from the upper portion of the front portion. A headrest skin-integrated foaming mold, in which a stay is inserted into the skin from the bottom of the top of the skin, and then a foaming liquid is injected into the skin, and the rear surface side of the front surface of the molding mold is molded. A movable piece that slides in the front-rear direction is provided in the portion, and the movable piece is retracted when demolding.

以上の構成により、発泡成形型における脱型時に、成形型本体の可動片を後退させることにより、成形後のヘッドレストにおける前面部と可動片との間に隙間が生じる。   With the above configuration, when the foaming mold is removed, the movable piece of the mold body is retracted to create a gap between the front portion of the molded headrest and the movable piece.

そして、前記可動片の上方に、前記頂部の底面の一部又は全面と前面部の後面上端部成形用の固定部を設けることにより、脱型時にステーを引くと、固定部を中心にヘッドレストの前面部の後面が前記隙間内に入り込む。   Then, by providing a fixed part for forming a part or the entire surface of the bottom of the top part and the rear upper end part of the front part above the movable piece, when the stay is pulled during demolding, the headrest is centered around the fixed part. The rear surface of the front portion enters the gap.

本請求項１の発明によれば、成形型でのヘッドレストの発泡成形型の脱型時に、可動片とヘッドレストの前面部後面との間の間隙により、容易にヘッドレストを脱型できる。   According to the first aspect of the present invention, the headrest can be easily removed by the gap between the movable piece and the rear surface of the front portion of the headrest when the foaming mold of the headrest is removed from the mold.

本請求項２の発明によれば、脱型時においてステーを引くことにより、前述の如く、前記隙間内に成形後のヘッドレストの後面が入り込むため、更に脱型作業が容易になる。   According to the second aspect of the present invention, by pulling the stay at the time of mold removal, as described above, the rear surface of the headrest after molding enters the gap, so that the mold removal operation is further facilitated.

以下、本発明の一実施例を図面に基づいて説明する。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

本発明によって成形する表皮一体発泡成形のヘッドレストＨは、図４に示すような外形形態であり、図中Ｈ1はヘッドレストＨの前面部、Ｈ2は前面部Ｈ1の上部より後方に略直角状に一体に延設した頂部を各々示す。   The headrest H of the integral foam molding formed according to the present invention has an outer shape as shown in FIG. 4, in which H1 is a front portion of the headrest H, and H2 is integrally integrated at a substantially right angle rearward from the upper portion of the front portion H1. Each of the tops is shown in FIG.

以上のヘッドレストＨの頂部Ｈ2底面１０２より前面部Ｈ1内にステーＳが挿入され、このステーＳは頂部Ｈ2底面１０２より下方に突出し、シートバック（不図示）に取付けられる。   The stay S is inserted into the front surface portion H1 from the bottom portion H2 bottom surface 102 of the headrest H, and the stay S projects downward from the bottom portion H2 bottom surface 102 and is attached to a seat back (not shown).

そして、ヘッドレストＨは図示するように略Ｌ字状の中空形態に縫製した表皮を成形型にセットして内部にパッド成形用の発泡液を注入することにより、前記表皮内のステーＳと共に表皮をパッドと一体に発泡成形することにより成形される。   As shown in the figure, the headrest H is set with a skin formed in a substantially L-shaped hollow shape as shown in the drawing mold, and a foaming liquid for pad molding is injected into the inside of the skin. It is formed by foaming integrally with the pad.

図１は略Ｌ字状中空形態の表皮内にステーＳを挿入し、成形型にセットして、表皮内に前記発泡液を注入した状態を示す。     FIG. 1 shows a state in which a stay S is inserted into a substantially L-shaped hollow skin, set in a mold, and the foaming liquid is injected into the skin.

図２は図１の状態より、パッドを表皮と一体に発泡成形した後、成形型より脱型する状態を各々示す。   FIG. 2 shows a state where the pad is foam-molded integrally with the skin and then removed from the mold from the state of FIG.

以上の成形型は前記ヘッドレストＨの外面を囲むように多数の割り型３０、３１、３２から構成されている。図中３３…はヒンジを示す。   The above mold is composed of a number of split dies 30, 31, 32 so as to surround the outer surface of the headrest H. In the figure, 33 indicates a hinge.

以上のヘッドレストＨの前面部Ｈ1の後面１０１及び頂部Ｈ2の底面１０２の一部に対応する割り型２には可動片１が設けてある。   The movable piece 1 is provided on the split mold 2 corresponding to a part of the rear surface 101 of the front surface portion H1 and the bottom surface 102 of the top portion H2 of the headrest H described above.

この可動片１は図１に示すように、ヘッドレストＨの成形時に成形型の一部を構成するように、即ち、ヘッドレストＨの前面部Ｈ1の後面１０１を成形するように収納空間部１Ｂから押し出されている。   As shown in FIG. 1, the movable piece 1 is pushed out of the storage space 1B so as to form a part of a mold when the headrest H is formed, that is, to form the rear surface 101 of the front surface portion H1 of the headrest H. It is.

そして、図２、図３に示すようにヘッドレストＨを発泡成形後は、収納空間部１Ｂに収納され、発泡成形したヘッドレストＨの前面部Ｈ1の後面１０１との間に隙間１Ａが生じるように、可動片１は前後方向にスライド可能に割り型２に取付けられている。   Then, as shown in FIGS. 2 and 3, after foaming the headrest H, the headrest H is stored in the storage space 1B, and a gap 1A is formed between the front surface H1 of the foamed headrest H and the rear surface 101. The movable piece 1 is attached to the split mold 2 so as to be slidable in the front-rear direction.

図中１０は可動片１の支持プレートで、この支持プレート１０に割り型２を挿通するＬ字状の把手１１が固定され、把手１１を押引することにより、可動片１がスライドするように構成されている。なお、可動片１は前記パッドの発泡時の発泡圧によってスライドすることがないように種々の方法、例えば、摩擦力によって発泡時のスライドを規制している。   In the figure, reference numeral 10 denotes a support plate for the movable piece 1. An L-shaped handle 11 through which the split mold 2 is inserted is fixed to the support plate 10, and the movable piece 1 slides by pushing and pulling the handle 11. It is configured. The movable piece 1 regulates sliding at the time of foaming by various methods, for example, frictional force so as not to slide by the foaming pressure at the time of foaming of the pad.

そして、この可動片１の上方である割り型２の先端部には固定部２０が設けてあり、この固定部２０はヘッドレストＨの頂部Ｈ2底面１０２の一部又は全面と前面部Ｈ1の後面１０１の上端部に対応する位置に設けて、底部１０２の一部又は全面、後面１０１の上端部を所定の外形形状に成形し得るように構成されている。   A fixed portion 20 is provided at the front end of the split mold 2 above the movable piece 1, and the fixed portion 20 is a part or the entire surface of the top portion H2 bottom surface 102 of the headrest H and the rear surface 101 of the front surface portion H1. Is provided at a position corresponding to the upper end portion of the bottom portion 102, so that a part or the entire surface of the bottom portion 102 and the upper end portion of the rear surface 101 can be formed into a predetermined outer shape.

固定部２０は図示するようにヘッドレストＨの頂部Ｈ2底面１０２における一部を成形するように、底面１０２の他の部分を別の割り型３２を設けることにより、脱型し易く、しかも、図１に示すように、割り型３２と割り型２とでステーＳを挟持して発泡成形できるため、成形型内に、中空略Ｌ字状の表皮を的確にセットできる。   As shown in FIG. 1, the fixing portion 20 can be easily removed by providing another split mold 32 on the other portion of the bottom surface 102 so as to form a part of the bottom H2 bottom surface 102 of the headrest H as shown in FIG. As shown in FIG. 2, since the stay S is sandwiched between the split mold 32 and the split mold 2 and foam molding can be performed, a hollow substantially L-shaped skin can be accurately set in the mold.

以上のように成形型は構成されているため、ヘッドレストＨを成形型で成形後、図２、図３に示すように脱型する際、可動片１を後退させて収納空間部１Ｂ内に収納し、可動片１のヘッドレストＨ側に隙間１Ａを設けているため、左右一対のステーＳの下部を割り型２から離れる方向に引くと、この隙間１Ａ内にヘッドレストＨの前面部Ｈ1の後面１０１側が入れ込み、次にステーＳを図２、図３矢印方向に押し上げると、割り型２からヘッドレストＨは容易に取り外すことができる。   Since the mold is configured as described above, after the headrest H is molded with the mold, when the mold is removed as shown in FIGS. 2 and 3, the movable piece 1 is retracted and stored in the storage space 1B. Since the gap 1A is provided on the headrest H side of the movable piece 1, when the lower part of the pair of left and right stays S is pulled away from the split mold 2, the rear surface 101 of the front surface portion H1 of the headrest H is inserted into the gap 1A. When the side is inserted and then the stay S is pushed up in the direction of the arrows in FIGS. 2 and 3, the headrest H can be easily removed from the split mold 2.

以上のステーＳを割り型２から離れる方向に引く際に、固定部２０がこの支点の作用をするから、ヘッドレストＨの前面部Ｈ1における後面１０１側が隙間Ａ1に入り易いため、脱型が更に容易になる。   When pulling the above stay S in the direction away from the split mold 2, the fixing portion 20 acts as a fulcrum, so that the rear surface 101 side of the front surface portion H1 of the headrest H is likely to enter the gap A1, thereby making it easier to remove the mold. become.

成形時の状態を示す断面図である。It is sectional drawing which shows the state at the time of shaping | molding. 脱型時の状態を示す断面図である。It is sectional drawing which shows the state at the time of mold removal. 脱型時の部分拡大図である。It is the elements on larger scale at the time of mold removal. 本発明に係る成形型で成形するヘッドレストの斜視図である。It is a perspective view of the headrest shape | molded with the shaping | molding die concerning this invention.

符号の説明Explanation of symbols

１…可動片、２…ヘッドレストの前面部の後面側を成形する割り型、２０…固定部、
Ｓ…ステー、Ｈ…ヘッドレスト、Ｈ1…ヘッドレストの前面部、Ｈ2…ヘッドレストの頂 部。 DESCRIPTION OF SYMBOLS 1 ... Movable piece, 2 ... Split mold which shape | molds the rear surface side of the front part of a headrest, 20 ... Fixed part,
S: stay, H: headrest, H1: front part of the headrest, H2: top part of the headrest.

Claims (2)

前面部とこの前面部の上部より後方に向けて一体に延設した頂部とからなる略Ｌ字状中空形態の表皮における頂部の底面より表皮内部にステーを挿入した後、表皮内に発泡液を注入して成形するヘッドレストの表皮一体発泡成形型であって、
該成形型における前面部の後面側を成形する部分に、前後方向にスライドする可動片を設けて、脱型時に可動片を後退させてなるヘッドレストの表皮一体発泡成形型構造。 After inserting the stay into the skin from the bottom of the top of the substantially L-shaped hollow skin consisting of the front and the top extending integrally from the top of the front to the rear, foaming liquid is injected into the skin. It is a foam integrated mold for the headrest to be injected and molded,
A headrest skin-integrated foaming mold structure in which a movable piece that slides in the front-rear direction is provided at a portion that molds the rear surface side of the front surface portion of the mold, and the movable piece is retracted when demolding. 前記可動片の上方に、前記頂部の底面の一部又は全面と前面部の後面上端部成形用の固定部を設けてなる請求項１記載の表皮一体発泡成形型構造。   The skin-integrated foaming mold structure according to claim 1, wherein a fixed part for molding a part or the whole of the bottom surface of the top part and a rear upper end part of the front part is provided above the movable piece.
JP2004102424A 2004-03-31 2004-03-31 Integrated foam molding structure of the headrest skin Expired - Fee Related JP3789921B2 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009008214A1 (en) * 2007-07-12 2009-01-15 Toyota Boshoku Kabushiki Kaisha Forming mold
WO2012093576A1 (en) * 2011-01-06 2012-07-12 株式会社ブリヂストン Foam molded body production device and foam molded body production method
JP2015003411A (en) * 2013-06-19 2015-01-08 株式会社タチエス Headrest integrated foam-molding die, and production method of headrest integrated foam molding
CN107914613A (en) * 2017-12-19 2018-04-17 浙江俱进汽摩配件有限公司 A kind of back seat

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009008214A1 (en) * 2007-07-12 2009-01-15 Toyota Boshoku Kabushiki Kaisha Forming mold
JP5131273B2 (en) * 2007-07-12 2013-01-30 トヨタ紡織株式会社 Mold
WO2012093576A1 (en) * 2011-01-06 2012-07-12 株式会社ブリヂストン Foam molded body production device and foam molded body production method
JP2012143878A (en) * 2011-01-06 2012-08-02 Bridgestone Corp Device and method for producing foam molding
CN103282178A (en) * 2011-01-06 2013-09-04 株式会社普利司通 Foam molded body production device and foam molded body production method
CN103282178B (en) * 2011-01-06 2016-03-30 株式会社普利司通 The process units of expanded moldings and the production method of expanded moldings
US9463586B2 (en) 2011-01-06 2016-10-11 Bridgestone Corporation Foam molded body production device and foam molded body production method
JP2015003411A (en) * 2013-06-19 2015-01-08 株式会社タチエス Headrest integrated foam-molding die, and production method of headrest integrated foam molding
CN107914613A (en) * 2017-12-19 2018-04-17 浙江俱进汽摩配件有限公司 A kind of back seat
CN107914613B (en) * 2017-12-19 2024-01-26 俱进汽车部件集团有限公司 Rear row seat

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