JP2005006874A - Trim cover - Google Patents

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Publication number
JP2005006874A
JP2005006874A JP2003174270A JP2003174270A JP2005006874A JP 2005006874 A JP2005006874 A JP 2005006874A JP 2003174270 A JP2003174270 A JP 2003174270A JP 2003174270 A JP2003174270 A JP 2003174270A JP 2005006874 A JP2005006874 A JP 2005006874A
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JP
Japan
Prior art keywords
trim cover
pad
foam
slab foam
slab
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.)
Pending
Application number
JP2003174270A
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Japanese (ja)
Inventor
Kaneyuki Takei
謙之 武井
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.)
Tachi S Co Ltd
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Tachi S 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.)
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Publication date
Application filed by Tachi S Co Ltd filed Critical Tachi S Co Ltd
Priority to JP2003174270A priority Critical patent/JP2005006874A/en
Priority to US10/795,244 priority patent/US20040256904A1/en
Publication of JP2005006874A publication Critical patent/JP2005006874A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1209—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements by impregnating a preformed part, e.g. a porous lining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/14—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining
    • B29C44/145—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining the lining being a laminate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/58—Seat coverings
    • B60N2/5891—Seat coverings characterised by the manufacturing process; manufacturing seat coverings not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/70—Upholstery springs ; Upholstery
    • B60N2/7017—Upholstery springs ; Upholstery characterised by the manufacturing process; manufacturing upholstery or upholstery springs not otherwise provided for

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To have a tensile touch on a surface after foam molding a pad and prevent the leakage of foam liquid for molding the pad from a joint to the outside in a trim cover sewn into a bag shape and integrally foaming the foam body pad in its inside. <P>SOLUTION: This trim cover A comprises a surface material 1 and a slab foam material 2 integrated with the surface material 1, and the permeability of the slab foam material 2 is set to a range from 0.2 to 1 cc/cm<SP>2</SP>/sec. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、自動車用のシート、ヘッドレスト、アームレスト用トリムカバー、詳しくは、袋状に縫製してその内部に発泡体を一体発泡成形するトリムカバーに関する。
【０００２】
【従来の技術】
従来の個の種のトリムカバーは、不織布、織布など通気性を有する表皮材の裏面側に、ウレタン系軟質発泡体（スラブフォーム材）を一体に接着し、このスラブフォームに非通気性のフィルムをラミネートしている（特許文献１）。
【０００３】
【特許文献１】特開昭６３ー３５３１４号公報
【０００４】
以上の非通気性のフィルムなどのラミネート材をラミネートしたトリムカバーを袋状に縫製して、その内部に発泡液を注入してパッドをトリムカバーと一体発泡する際、発泡液の発泡圧力によって、トリムカバーがモールドの内面に沿って密接でき、所定の外形形状を有するヘッドレスト等が成形される。
【０００５】
以上ののトリムカバーは表皮材、スラブフォーム材、ラミネート材の三層より成形されている。
【０００６】
【発明の解決しようとする課題】
以上のトリムカバーはラミネート材などの非通気性部材によってパッド成形時の発泡圧力によって袋状に縫製したミシン目が開き、発泡液がミシン目から漏出するため、発泡液の漏出防止加工が必要であった。また、非通気性部材側のパッドに空気溜りが発生する虞れもあった。
【０００７】
一方、前記表皮材とスラブフォーム材とからなる二層からなるトリムカバーは通気性を有するため、以上の三層からなるトリムカバーによる不具合はないが、前記パッド成形時の発泡圧力がトリムカバーを通してモールド内に抜けるため、所定の外形形状にヘッドレストなどが成形できないし、トリムカバーに皺、タルミが生じる。また、スラブフォーム材内に発泡液が浸透し、トリムカバーの感触が悪くなる不具合があった。
【０００８】
そこで、本発明は前記三層及び二層からなるトリムカバーの不具合を解消することを目的とする。
【０００９】
【課題を解決するための手段】
以上の目的を達成するための本発明は、袋状に縫製しその内部に発泡体製パッドを一体発泡成形する自動車用のシート、ヘッドレスト用などのトリムカバーであって、該トリムカバーは表皮材と、この表皮材の裏面側に一体に有するスラブフォーム材とからなり、該スラブフォーム材は連続気泡からなる発泡体で、その通気性は０．２ｃｃ／ｃｍ２／ｓｅｃから１ｃｃ／ｃｍ２／ｓｅｃの構成である。
【００１０】
以上の構成により、発泡圧力によってパッド成形用の発泡液がスラブフォームの一部に浸透するが、表皮材側まで浸透することなく、トリムカバーはモールド内面に密接する。
【００１１】
【発明の実施の形態】
以下、本発明の実施の一形態を図面に基づいて説明する。
図１は本発明に係るトリムカバー、図２はパッド発泡時のトリムカバーを各々示す。
【００１２】
図中１は前記トリムカバーＡを構成する表皮材、２は同スラブフォーム材、２０はスラブフォーム材２に発泡液が含浸した含浸層、ＢはトリムカバーＡに一体発泡成形した発泡体製パッドを各々示す。
【００１３】
図３はヘッドレスト成形用モールド４０、４１内でトリムカバーＡにパッドＢを一体発泡成形してヘッドレストを成形する状態を示す。図中Ａ１…はトリムカバーＡのミシンによる接ぎ個所、Ｃはヘッドレストフォーム、４２は発泡液注入孔を示す。
【００１４】
以上の表皮材１は、従来の自動車用シート、ヘッドレスト、アームレストの表面材として使用されている織布、不織布、皮革などの通気性を有する部材である。
【００１５】
スラブフォーム材２は、厚さ３ミリー８ミリ程度の連続気泡からなる軟質ウレタンフォームからなる発泡体で、その通気性は０．２ｃｃ／ｃｍ２／ｓｅｃから１ｃｃ／ｃｍ２／ｓｅｃの範囲に成形されている。
【００１６】
以上のトリムカバーＡ、Ａ…は、ミシンで接ぎ合わせて袋状に形成し、図３に示すように、割り型からなるモールド４０、４１内に収容してモールド４０、４１の発泡液注入孔４２及びトリムカバーＡに設けた注入孔Ａ２よりノズルを介してパッド成形用の発泡液を注入してパッドＢをトリムカバーＡ、Ａ…と一体に発泡成形する。
【００１７】
以上の袋状に縫製したトリムカバーＡ…の袋体の外径は、モールド４０、４１の内径と略同一にするのが望ましい。
【００１８】
そして、この状態で袋状に縫製したトリムカバーＡ…内に注入して発泡する発泡液の発泡圧力を０．１Ｋｇ程度にすると、この発泡圧力によって発泡液は前記スラブフォーム材２の厚みが５ミリの場合には図２に示すように２ミリ程度含浸層２０を形成してパッドＢが成形される。
【００１９】
モールド４０、４１内でパッドＢをヘッドレストフレームＣ状態に縫製したトリムカバーＡ…と共に一体発泡成形することにより、自動車用シートに備えるヘッドレストが成形される。
【００２０】
このヘッドレストのトリムカバーＡ、Ａ…は、前記発泡圧力によってモールド４０、４１の内面に圧接するため、皺、タルミが発生することがない。
【００２１】
また、発泡液がスラブフォーム材２内に浸透するため、パッドＢにおけるスラブフォーム材２側に、前記トリムカバーに非通気性部材を使用した従来品の如く、空間部が発生することもない。
【００２２】
しかも、スラブフォーム材２の表皮材１側まで発泡液が浸透することがないため、ヘッドレストの外表面を構成するトリムカバーＡの感触を損なうこともない。
【００２３】
なお、実験結果によれば、スラブフォーム材２の通気性を前記数値以上によれば、スラブフォーム材２の表皮材１側まで発泡液が浸透するし、表皮材１が緊張状態にならず、皺、タルミが生じる。
【００２４】
また、スラブフォーム材２の通気性を０．１ｃｃ／ｃｍ２／ｓｅｃ以下にすると、トリムカバーＡ…に発泡圧力が加わり、継ぎ目Ａ１、Ａ１…から発泡液が外部に漏出するため、前記従来品と同様に接ぎ目Ａ１、Ａ１…に発泡液漏出防止加工を施す必要がある。
【００２５】
【発明の効果】
本発明によれば、パッドを内部に一体発泡成形するトリムカバーにおいて、パッド成形用の発泡液が発泡圧力によってスラブフォーム材のパッド側に浸透してパッドが成形される。
【００２６】
そのため、袋状に縫製したトリムカバーの接ぎ目から発泡液が外部に漏出することがない。また、トリムカバーの表皮材側が発泡圧力でモールドの内面に圧接する。
【００２７】
従って、パッド発泡成形後のトリムカバーに張り感が得られ、皺、タルミが生じない。
加えて、パッドのトリムカバー側に、製品の品質を損なう空間部が発生しない。
更に、トリムカバーを構成するスラブフォーム材の表皮材側までパッド成形用の発泡液が浸透することがないため、トリムカバーの感触を損なうこともない。
【図面の簡単な説明】
【図１】本発明に係るトリムカバーの断面図である。
【図２】パッドを一体発泡した状態のトリムカバーの断面図である。
【図３】本発明に係るトリムカバーを使用してパッドを発泡成形した状態の断面図である。
【符号の説明】
１ 表皮材
２ スラブフォーム材
Ａ トリムカバー
Ｂ パッド[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automobile seat, a headrest, and an armrest trim cover, and more particularly to a trim cover that is sewn into a bag shape and integrally foamed with a foam.
[0002]
[Prior art]
The conventional trim cover of various kinds is made by adhering a urethane-based soft foam (slab foam material) to the back side of a breathable skin material such as nonwoven fabric or woven fabric, and impermeable to this slab foam. A film is laminated (Patent Document 1).
[0003]
[Patent Document 1] Japanese Patent Application Laid-Open No. 63-35314 [0004]
When a trim cover laminated with a laminate material such as the above air-impermeable film is sewn into a bag shape, a foaming liquid is injected into the interior and the pad is integrally foamed with the trim cover, depending on the foaming pressure of the foaming liquid, The trim cover can be brought into close contact with the inner surface of the mold, and a headrest or the like having a predetermined outer shape is formed.
[0005]
The above trim cover is formed from three layers of a skin material, a slab foam material, and a laminate material.
[0006]
[Problem to be Solved by the Invention]
The above trim cover needs to be processed to prevent leakage of the foaming liquid because the perforated seams opened by the foaming pressure at the time of pad molding are opened by a non-breathable material such as laminate material and the foaming liquid leaks from the perforation. there were. Further, there is a possibility that air accumulation may occur in the pad on the non-breathable member side.
[0007]
On the other hand, since the two-layer trim cover made of the skin material and the slab foam material has air permeability, there is no problem with the above-mentioned three-layer trim cover, but the foaming pressure at the time of forming the pad passes through the trim cover. Since it falls out into the mold, a headrest or the like cannot be formed into a predetermined outer shape, and wrinkles and tarmi occur on the trim cover. In addition, there was a problem that the foam liquid penetrated into the slab foam material and the feel of the trim cover was deteriorated.
[0008]
Therefore, an object of the present invention is to eliminate the problem of the trim cover including the three layers and the two layers.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a trim cover for automobile seats, headrests, etc., in which a foam pad is integrally formed by molding in a bag shape, and the trim cover is a skin material. If consists of a slab foam material having integrally on the rear surface side of the skin material, said slab foam in a foam consisting of open cells, its breathability is 0.2cc / cm 2 / sec from 1 cc / cm 2 / sec.
[0010]
With the above configuration, the foaming liquid for pad molding permeates a part of the slab foam by the foaming pressure, but the trim cover is in close contact with the inner surface of the mold without penetrating to the skin material side.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a trim cover according to the present invention, and FIG. 2 shows a trim cover when a pad is foamed.
[0012]
In the figure, 1 is a skin material constituting the trim cover A, 2 is the slab foam material, 20 is an impregnation layer in which the slab foam material 2 is impregnated with foaming liquid, and B is a foam pad integrally foam-molded with the trim cover A. Are shown respectively.
[0013]
FIG. 3 shows a state where the headrest is molded by integrally foaming the pad B with the trim cover A in the headrest molding molds 40 and 41. In the drawing, A 1 .
[0014]
The skin material 1 described above is a breathable member such as a woven fabric, a nonwoven fabric, or leather that is used as a surface material for conventional automobile seats, headrests, and armrests.
[0015]
Slab foam material 2, a foam body made of soft urethane foam having a thickness of 3 Millie 8 millimeters of open cells, its breathability is formed in the range of 0.2 cc / cm 2 / sec of 1 cc / cm 2 / sec Has been.
[0016]
The above trim covers A, A... Are formed in a bag shape by contacting with a sewing machine, and are accommodated in molds 40, 41 made of split molds, as shown in FIG. 42 and the trim cover a to provided the injection hole by injecting a foaming solution for pad shaping through the nozzle from the a 2 pad B trim cover a, and foam molding the a ... integrally.
[0017]
It is desirable that the outer diameter of the bag body of the trim cover A ... sewed in the bag shape is substantially the same as the inner diameter of the molds 40 and 41.
[0018]
In this state, when the foaming pressure of the foaming liquid that is injected into the trim cover A ... that is sewn into a bag shape is about 0.1 kg, the foaming liquid has a thickness of the slab foam material 2 of 5 kg. In the case of millimeters, the impregnated layer 20 is formed about 2 millimeters as shown in FIG.
[0019]
The headrest provided in the automobile seat is molded by integrally foaming together with the trim cover A... In which the pad B is sewn in the headrest frame C state in the molds 40 and 41.
[0020]
The trim covers A, A... Of the headrest are pressed against the inner surfaces of the molds 40 and 41 by the foaming pressure, so that no wrinkles or tarmi are generated.
[0021]
Further, since the foaming liquid permeates into the slab foam material 2, no space is generated on the slab foam material 2 side of the pad B as in the conventional product using a non-breathable member for the trim cover.
[0022]
In addition, since the foaming liquid does not penetrate to the skin material 1 side of the slab foam material 2, the feel of the trim cover A constituting the outer surface of the headrest is not impaired.
[0023]
According to the experimental results, the foaming liquid penetrates to the skin material 1 side of the slab foam material 2 according to the air permeability of the slab foam material 2, and the skin material 1 is not in a tension state. Wrinkles and tarmi occur.
[0024]
Further, when the air permeability of the slab foam material 2 is 0.1 cc / cm 2 / sec or less, foaming pressure is applied to the trim covers A ..., and the foaming liquid leaks to the outside from the joints A 1 , A 1 ... It is necessary to perform foaming liquid leakage prevention processing on the joints A 1 , A 1 .
[0025]
【The invention's effect】
According to the present invention, in the trim cover in which the pad is integrally foam-molded inside, the pad-forming foam liquid penetrates into the pad side of the slab foam material by the foaming pressure and the pad is molded.
[0026]
Therefore, the foaming liquid does not leak outside from the joint of the trim cover sewn in a bag shape. Moreover, the skin material side of the trim cover is pressed against the inner surface of the mold with foaming pressure.
[0027]
Therefore, a feeling of tension is obtained on the trim cover after the pad foam molding, and no wrinkles or sagging occurs.
In addition, there is no space on the trim cover side of the pad that impairs product quality.
Furthermore, since the foaming liquid for pad formation does not penetrate to the skin material side of the slab foam material constituting the trim cover, the feel of the trim cover is not impaired.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a trim cover according to the present invention.
FIG. 2 is a cross-sectional view of a trim cover in a state where a pad is integrally foamed.
FIG. 3 is a cross-sectional view of a pad foam-molded using the trim cover according to the present invention.
[Explanation of symbols]
1 Skin material 2 Slab foam material A Trim cover B Pad

Claims (1)

袋状に縫製しその内部に発泡体製パッドを一体発泡成形する自動車用のシート、ヘッドレスト用などのトリムカバーであって、
該トリムカバーは表皮材と、この表皮材の裏面側に一体に有するスラブフォーム材とからなり、
該スラブフォーム材は連続気泡からなる発泡体で、その通気性は０．２ｃｃ／ｃｍ２／ｓｅｃから１ｃｃ／ｃｍ２／ｓｅｃの範囲である
トリムカバー。It is a trim cover for automobile seats, headrests, etc., which are sewn into a bag shape and foam pad is integrally molded inside the bag,
The trim cover is composed of a skin material and a slab foam material integrally provided on the back surface side of the skin material,
Trim cover said slab foam in a foam consisting of open cells, the air permeability in the range of 1cc / cm 2 / sec from 0.2cc / cm 2 / sec.
JP2003174270A 2003-06-19 2003-06-19 Trim cover Pending JP2005006874A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2003174270A JP2005006874A (en) 2003-06-19 2003-06-19 Trim cover
US10/795,244 US20040256904A1 (en) 2003-06-19 2004-03-09 Trim cover assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003174270A JP2005006874A (en) 2003-06-19 2003-06-19 Trim cover

Publications (1)

Publication Number Publication Date
JP2005006874A true JP2005006874A (en) 2005-01-13

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ID=33516201

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Application Number Title Priority Date Filing Date
JP2003174270A Pending JP2005006874A (en) 2003-06-19 2003-06-19 Trim cover

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JP (1) JP2005006874A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2070763A2 (en) 2007-12-07 2009-06-17 Toyota Boshoku Kabushiki Kaisha Pieces for skin members of vehicular seats and methods of manufacturing the same
JP2009274326A (en) * 2008-05-14 2009-11-26 Namba Press Works Co Ltd Foamed molding provided in vehicular seat, and manufacturing method therefor
JP2015013409A (en) * 2013-07-04 2015-01-22 株式会社タチエス Skin-integrated foam molding
KR20220167681A (en) * 2021-06-14 2022-12-21 현대트랜시스 주식회사 Form Pad Assembly

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080265645A1 (en) * 2007-04-24 2008-10-30 Tachi-S Co., Ltd. Headrest
DE102013201813A1 (en) * 2013-02-05 2014-08-07 Johnson Controls Gmbh Headrest for a vehicle and method for its manufacture
JP6208070B2 (en) * 2014-04-25 2017-10-04 トヨタ紡織株式会社 Vehicle seat
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