JP3604012B2 - Method of forming adhesive sheet - Google Patents

Method of forming adhesive sheet Download PDF

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Publication number
JP3604012B2
JP3604012B2 JP2001262812A JP2001262812A JP3604012B2 JP 3604012 B2 JP3604012 B2 JP 3604012B2 JP 2001262812 A JP2001262812 A JP 2001262812A JP 2001262812 A JP2001262812 A JP 2001262812A JP 3604012 B2 JP3604012 B2 JP 3604012B2
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JP
Japan
Prior art keywords
pad
trim cover
pressing
inclined surface
adhesive sheet
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
JP2001262812A
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Japanese (ja)
Other versions
JP2003071935A (en
Inventor
文 佐々木
達夫 真嶋
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
Original Assignee
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.)
Filing date
Publication date
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Priority to JP2001262812A priority Critical patent/JP3604012B2/en
Publication of JP2003071935A publication Critical patent/JP2003071935A/en
Application granted granted Critical
Publication of JP3604012B2 publication Critical patent/JP3604012B2/en
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Description

【0001】
【発明の属する技術分野】
本発明は自動車用シート、詳しくは、土手部に独立状の凹窪付傾斜面を有する発泡体製パッドにトリムカバーを接着剤で接着することにより形成する接着シートの形成方法に関する。
【0002】
【従来の技術】
従来の接着シートは、上型に発泡体製のパッド、下型にトリムカバーを載置して上型を垂直方向に下降させることにより、あらかじめ加圧面に接着剤を塗布したパッドをトリムカバーに圧着することにより接着している。
【0003】
ところが、図3に示すように、シートクッション(SC)は着座部(イ)の左右に隆起状の土手部(ロ)(ロ)が設けてあり、この土手部(ロ)(ロ)の内側は傾斜面に形成されている。
そして、この傾斜面に独立状の凹窪からなる装飾凹部(a)…を多数傾斜面に対して、図4に示すように、直角方向に設けたものがある。
【0004】
なお、図3、4において、図中(3)はトリムカバー、(4)はモールド加工した発泡体製のパッド、(5)はトリムカバー(3)をパッド(4)に接着した接着剤、(41)はパッド(4)の隆起部(4A)における傾斜面、(42)はパッド(4)の平但面、(43)はパッド(4)のサイド部、(7)はパッド(4)の裏面側に設けた補強布、(8)はパッド(4)を支持するフレームを各々示す。
【0005】
【発明が解決しようとする課題】
斯様に土手部(ロ)(ロ)の傾斜面に装飾凹部(a)…を設けた接着シートは、前記上、下型を使用してパッドにトリムカバーを接着すると、前記装飾凹部(a)が上、下型による上下方向の加圧方向とは異なる斜め方向に設けてあるため、装飾凹部(a)におけるトリムカバーの接着性が悪いし、所定の形状に装飾凹部(a)を形成できない不具合があった。
【0006】
斯る不具合を解消するために、例えば実開昭63ー136920号公報に開示されているようなものがある。これは、パッドを取付ける上型にパッドに対して斜下方に押圧する別の補助加圧手段を設けてパッドの裏側から表面の傾斜面方向に加圧して接着するものがある。
【0007】
しかし、この方法でパッドをトリムカバーに接着すると、補助加圧手段による加圧力がパッドの弾性によって殺され、トリムカバーがパッドの傾斜面に設けた独立状の凹窪内に喰い込まれ難い欠陥があった。
【0008】
そこで、本発明は斯る従来品の欠陥を除去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に係る接着シートの形成方法は、上型に、土手部に独立状の凹窪を有する傾斜面が設けてある発泡体製パッドを取付け、下型に、トリムカバーを載置して、上型を垂直方向に下降させてパッドをトリムカバーに圧着して接着した後、前記パッドの傾斜面に直交方向に加圧する再加圧手段で、トリムカバーの一部を前記パッドの凹窪内に喰い込ませて接着することを特徴とするものである。
【0010】
以上の構成により、トリムカバーをパッドに接着後、トリムカバーの一部を再加圧手段で直接加圧してパッドの凹窪内に喰い込ませて接着できる。
【0011】
【発明の実施の形態】
以下、本発明の実施の一形態を図1、図2に基づいて説明する。
図1、図2において、図中図4と同一符号は同一部材を示し、その説明を省略する。
【0012】
まず、上型(6)は固定され、この上型(6)にパッド(4)を下向きに取付け、上方に移動する下型(1)上にトリムカバー(3)を載置する。パッド(4)の傾斜面(41)には従来と同様に独立状の凹窪(40)…が傾斜面(41)に対して直角状にモールド成形されている。
【0013】
一方、このパッド(4)に接着されるトリムカバー(3)は従来周知の材質で、伸縮性を有するものを使用するのが好ましい。
【0014】
以上の下型(1)には再加圧手段(2)が設けてあり、この再加圧手段(2)は下型(1)における前記パッド(4)の凹窪(40)…に対応する位置に開孔した多数の通孔に、スライド自在に挿通してトリムカバー(3)の一部を再加圧する押圧棒(20)…と、エアシリンダー(22)等から構成されている。
【0015】
以上の各押圧棒(20)は、凹窪(40)の深さ方向に向けて、即ち、パッド(4)の傾斜面(41)に対して直交方向に向けて配設されている。
従って、前記下型(1)の上昇方向である垂直方向に対して斜方向に向くように下型(1)に取付けられている。
【0016】
そして、各押圧棒(20)…は、エアシリンダー(22)によって伸縮し、各押圧棒(20)…は、取付プレート(23)に基端が固定され、取付プレート(23)はエアシリンダー(22)の伸縮ロッド(21)に連結されている。
【0017】
前述の如く、上型(6)にパッド(4)を取付けた後、このパッド(4)の被加圧面である傾斜面(41)、平但面(42)に接着剤(5)を塗布した後、下型(1)を垂直方向(F方向)に上昇させて、まず、下型(1)上のトリムカバー(3)をパッド(4)の被加圧面全面に加圧して接着する。
【0018】
次に、この下型(1)での加圧状態を保持した状態で、再加圧手段を構成するエアシリンダー(22)を作動させて、伸縮ロッド(21)を伸長させて各押圧棒(20)でパッド(4)の各凹窪(40)を被覆する部分のトリムカバー(3)を凹窪(40)内にF方向の加圧力によって喰い込ませて接着する。
【0019】
以上の押圧棒(20)によるパッド(4)内への喰い込み量は、パッド(4)の凹窪(40)の深さに対して2倍程度にするのが好ましい。
これにより、パッド(4)の凹窪(40)内にトリムカバー(3)の一部が喰い込まれて図3、図4に示す装飾凹部(a)…が形成される。
【0020】
【発明の効果】
本発明によれば、パッドにトリムカバーを加圧して接着後、その加圧方向に対して斜方向であるパッドの傾斜面に対して直交方向に、トリムカバーの一部をパッドの傾斜面に有する凹窪内にトリムカバーを喰い込ませて接着するから、シートの表面に独立状の装飾凹部がくっきりと、また、剥離することなく確実に接着でき、シートの外観品質を向上し得る。
【図面の簡単な説明】
【図1】本発明に係る方法を示し、パッドにトリムカバーを接着する前の状態の断面図である。
【図2】図1の状態からトリムカバーを接着した状態の断面図である。
【図3】本発明方法によって形成する接着シートを示す斜視図である。
【図4】図3のIVーIV線断面図である。
【符号の説明】
1 下型
2 上型
3 トリムカバー
4 パッド
20 再加圧手段
40 パッドの傾斜面に設けた凹窪
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for forming an automotive sheet, and more particularly, to a method for forming an adhesive sheet formed by bonding a trim cover to a foam pad having an independent inclined surface with a concave recess on a bank portion with an adhesive.
[0002]
[Prior art]
The conventional adhesive sheet consists of placing a foam pad on the upper mold, placing a trim cover on the lower mold, and lowering the upper mold in the vertical direction. Bonded by crimping.
[0003]
However, as shown in FIG. 3, the seat cushion (SC) is provided with raised bank portions (B) and (B) on the left and right sides of the seating portion (A), and the inside of the bank portions (B) and (B). Is formed on an inclined surface.
In addition, as shown in FIG. 4, there is a type in which a large number of decorative concave portions (a)...
[0004]
In FIGS. 3 and 4, (3) is a trim cover, (4) is a pad made of molded foam, (5) is an adhesive bonding the trim cover (3) to the pad (4), (41) is an inclined surface of the raised portion (4A) of the pad (4), (42) is a flat surface of the pad (4), (43) is a side portion of the pad (4), and (7) is a pad (4). And (8) indicate a frame supporting the pad (4).
[0005]
[Problems to be solved by the invention]
The adhesive sheet provided with the decorative recesses (a) on the inclined surfaces of the bank portions (b) and (b) is bonded to the pad using the upper and lower molds to attach the trim cover to the decorative recesses (a). ) Are provided in an oblique direction different from the vertical pressing direction by the upper and lower dies, so that the trim cover has poor adhesion in the decorative recess (a) and the decorative recess (a) is formed in a predetermined shape. There was an inability to do so.
[0006]
In order to solve such a problem, there is, for example, one disclosed in Japanese Utility Model Laid-Open Publication No. 63-136920. In this case, another auxiliary pressing means for pressing the pad obliquely downward is provided on the upper die on which the pad is mounted, and the pad is bonded by pressing from the back side of the pad in the direction of the inclined surface.
[0007]
However, when the pad is adhered to the trim cover by this method, the pressing force of the auxiliary pressurizing means is killed by the elasticity of the pad, and the trim cover is hardly bitten into the independent recess provided on the inclined surface of the pad. was there.
[0008]
Therefore, an object of the present invention is to eliminate such a defect of the conventional product.
[0009]
[Means for Solving the Problems]
The method for forming an adhesive sheet according to the present invention for achieving the above object is as follows: an upper mold, a foam pad provided with an inclined surface having an independent concave recess on a bank portion, and a lower mold, After placing the trim cover, lowering the upper die in the vertical direction and pressing and bonding the pad to the trim cover, the re-pressing means presses the inclined surface of the pad in a direction perpendicular to the trim cover. The part is bitten into the recess of the pad and is bonded.
[0010]
According to the above configuration, after the trim cover is bonded to the pad, a part of the trim cover can be directly pressed by the re-pressing means to bite into the recess of the pad and bond.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described below with reference to FIGS.
1 and 2, the same reference numerals as those in FIG. 4 denote the same members, and a description thereof will be omitted.
[0012]
First, the upper die (6) is fixed, and the pad (4) is attached downward to the upper die (6), and the trim cover (3) is placed on the lower die (1) that moves upward. On the inclined surface (41) of the pad (4), independent concave recesses (40) are molded at right angles to the inclined surface (41) as in the related art.
[0013]
On the other hand, it is preferable that the trim cover (3) adhered to the pad (4) is made of a conventionally known material and has elasticity.
[0014]
The lower mold (1) is provided with a re-pressurizing means (2), and the re-pressurizing means (2) corresponds to the concave portion (40) of the pad (4) in the lower mold (1). A press rod (20), which slidably penetrates a large number of through-holes opened at positions to press a part of the trim cover (3) again, and an air cylinder (22).
[0015]
Each of the pressing rods (20) described above is disposed in the depth direction of the concave recess (40), that is, in the direction perpendicular to the inclined surface (41) of the pad (4).
Therefore, the lower mold (1) is attached to the lower mold (1) so as to face obliquely to the vertical direction which is the rising direction of the lower mold (1).
[0016]
Each pressing rod (20) expands and contracts by an air cylinder (22), and each pressing rod (20) has a base end fixed to a mounting plate (23), and the mounting plate (23) is 22) is connected to the telescopic rod (21).
[0017]
As described above, after the pad (4) is attached to the upper die (6), the adhesive (5) is applied to the inclined surface (41) and the flat surface (42) of the pad (4) which are the surfaces to be pressed. after, the lower mold (1) is allowed to rise in the vertical direction (F 1 direction), first, by pressurizing the trim cover on the lower mold (1) to (3) in the pressing surface entire pad (4) adhesive I do.
[0018]
Next, in a state where the pressurized state of the lower mold (1) is maintained, the air cylinder (22) constituting the re-pressurizing means is operated to extend the telescopic rod (21) so that each pressing rod ( 20) in so bite by F 2 direction of pressure trim cover (3) on the recessed (40) in the portions covering the respective recessed (40) of the pad (4) is bonded.
[0019]
The amount of biting into the pad (4) by the pressing rod (20) is preferably about twice the depth of the recess (40) of the pad (4).
As a result, a part of the trim cover (3) is bitten into the recess (40) of the pad (4), and the decorative recess (a) shown in FIGS. 3 and 4 is formed.
[0020]
【The invention's effect】
According to the present invention, after the trim cover is pressed and adhered to the pad, a part of the trim cover is applied to the inclined surface of the pad in a direction orthogonal to the inclined surface of the pad which is oblique to the pressing direction. Since the trim cover is bitten into the recessed portion and adhered, the independent decorative concave portion can be adhered to the surface of the sheet clearly and without peeling, and the appearance quality of the sheet can be improved.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a method according to the present invention and before a trim cover is bonded to a pad.
FIG. 2 is a sectional view of a state where a trim cover is adhered from the state of FIG. 1;
FIG. 3 is a perspective view showing an adhesive sheet formed by the method of the present invention.
FIG. 4 is a sectional view taken along line IV-IV in FIG. 3;
[Explanation of symbols]
DESCRIPTION OF REFERENCE NUMERALS 1 lower mold 2 upper mold 3 trim cover 4 pad 20 re-pressurizing means 40 recess provided on inclined surface of pad

Claims (1)

上型に、土手部に独立状の凹窪を有する傾斜面が設けてある発泡体製パッドを取付け、下型に、トリムカバーを載置して、上型を垂直方向に下降させてパッドをトリムカバーに圧着して接着した後、前記パッドの傾斜面に対して直交方向に加圧する再加圧手段で、トリムカバーの一部を前記パッドの凹窪内に喰い込ませて接着することを特徴とする接着シートの形成方法。Attach a pad made of foam having an inclined surface with an independent concave recess on the bank to the upper mold, place a trim cover on the lower mold, lower the upper mold vertically to remove the pad. After pressing and bonding to the trim cover, re-pressing means for pressing in a direction perpendicular to the inclined surface of the pad is used to bite and trim a part of the trim cover into the concave recess of the pad. A method for forming an adhesive sheet.
JP2001262812A 2001-08-31 2001-08-31 Method of forming adhesive sheet Expired - Fee Related JP3604012B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001262812A JP3604012B2 (en) 2001-08-31 2001-08-31 Method of forming adhesive sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001262812A JP3604012B2 (en) 2001-08-31 2001-08-31 Method of forming adhesive sheet

Publications (2)

Publication Number Publication Date
JP2003071935A JP2003071935A (en) 2003-03-12
JP3604012B2 true JP3604012B2 (en) 2004-12-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001262812A Expired - Fee Related JP3604012B2 (en) 2001-08-31 2001-08-31 Method of forming adhesive sheet

Country Status (1)

Country Link
JP (1) JP3604012B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113942086B (en) * 2021-12-20 2022-03-04 宁波美久汽配科技有限公司 Automobile interior decoration spare rattan wood skin laminating device

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