JPS60214926A - Vacuum molding of skin material - Google Patents
Vacuum molding of skin materialInfo
- Publication number
- JPS60214926A JPS60214926A JP59070969A JP7096984A JPS60214926A JP S60214926 A JPS60214926 A JP S60214926A JP 59070969 A JP59070969 A JP 59070969A JP 7096984 A JP7096984 A JP 7096984A JP S60214926 A JPS60214926 A JP S60214926A
- Authority
- JP
- Japan
- Prior art keywords
- skin material
- mold
- vacuum
- undercut
- molding
- 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
Links
Classifications
-
- 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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/30—Moulds
- B29C51/34—Moulds for undercut articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/58—Upholstery or cushions, e.g. vehicle upholstery or interior padding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は自動車のシート、バックレスト、インストルー
メンドパネルバット、ピラートリム等の表皮材の真空成
形方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for vacuum forming skin materials for automobile seats, backrests, instrument panel butts, pillar trims, etc.
従来から上記シート等の表皮材の製造方法としては、例
えば特開昭５８−２０３０３Ｅｉ号公報に開示されてい
るように、熱可塑性材料を用いて、真空成形により成形
する方法、或いは又成形した数音の表皮部材を縫製、接
着等により所望の形状にする方法等があるが、本発明方
法は°前述したような真空成形による成形方法に関する
ものである。しかし表皮材を、割型でない一体の成形型
を用いた場合において、真空成形のみにより一体成形し
たのでは所望の形状、例えば他部材との接合を良＜シ、
かつ接合面のデザインを好ましいものにするために表皮
材の端部に成形型にアンダーカット部を設けることによ
る屈曲部を設けたり、又好ましい形状の深絞り部を設け
たり、或いは表面に複雑な模様を賦形する等のことは望
み得ないという問題点かあった。Conventionally, methods for producing skin materials such as the above-mentioned sheets include a method of forming by vacuum forming using a thermoplastic material, or a method of forming by vacuum forming, as disclosed in JP-A-58-20303Ei, for example, or Although there are methods of forming the sound skin member into a desired shape by sewing, gluing, etc., the method of the present invention relates to a molding method using vacuum forming as described above. However, when the skin material is formed using an integral mold instead of a split mold, it is difficult to achieve the desired shape, for example, by forming the skin material in one piece using only vacuum forming.
In addition, in order to make the design of the joint surface preferable, it is necessary to provide a bent part at the end of the skin material by providing an undercut part in the mold, or to provide a deep drawn part with a desirable shape, or to create a complex surface. There was a problem in that it was impossible to create patterns.
本発明方法は成形型を用いた真空成形による一体成形で
あるにもかかわらず、プラグを使用することにより、上
記の問題点を解消する方法を提供するものであって、本
発明の要旨とするところは熱可塑性材料を真空成形し、
表皮材を得る方法において、アンダーカット部、深絞り
部、模様賦形用等の凹凸面を有する成形型を用い、さら
に真ヤ成形と同時に、上記アンダーカット部、深絞り部
、模様賦形用等の凹凸面に対応した輪郭形状を有するプ
ラグを用いて成形型の対応する形状部分へ熱可塑性材料
を抑圧密着させることを特徴とする表皮材の真空成形方
法にある。Although the method of the present invention is integrally formed by vacuum forming using a mold, it provides a method that solves the above problems by using a plug, and this is the gist of the present invention. However, thermoplastic material is vacuum formed,
In the method of obtaining the skin material, a mold having an uneven surface for undercut parts, deep drawing parts, pattern forming, etc. is used, and at the same time as the true molding, for forming the undercut parts, deep drawing parts, pattern forming, etc. A method of vacuum forming a skin material is characterized in that a plug having a contour corresponding to an uneven surface is used to press and adhere a thermoplastic material to a correspondingly shaped portion of a mold.
尚、真空成形に閃する技術として前述したように特開昭
５８−２０３０３Ｅ３号公報に開示があるか、このもの
は表皮材の端部をクリップし易いように加工する方法に
関するものであって、真空成形の際に成形型の上面周縁
端部に凹部又は凸部を形成し、鎖部と、鎖部を押圧して
表皮材を固定する固定治具の底に対応する凹部又は凸部
を設け、表皮材の周縁端部に凹凸部を加熱により形成す
るものである。As mentioned above, Japanese Patent Application Laid-open No. 58-20303E3 discloses a technique inspired by vacuum forming, which relates to a method of processing the edge of a skin material so that it can be easily clipped. During vacuum forming, a concave or convex portion is formed on the peripheral edge of the upper surface of the mold, and a concave or convex portion corresponding to the chain portion and the bottom of a fixing jig that presses the chain portion and fixes the skin material is provided. , an uneven portion is formed on the peripheral edge of the skin material by heating.
以下図面で示す実施例に基いて本発明を詳述する。The present invention will be described in detail below based on embodiments shown in the drawings.
第１図〜第４図は本発明方法による自動車のシートのバ
ックレストの表皮材の成形を順を追って説明する図であ
る。本実施例においては、割型でない一体の真空成形型
１と押圧用プラグ２ａ１２ｂ及び表皮材周縁を固定する
クランプ３ａ１３ｂを用いて表皮材の成形を行うように
なっている。FIGS. 1 to 4 are diagrams illustrating step-by-step the formation of a skin material for a backrest of an automobile seat according to the method of the present invention. In this embodiment, the skin material is molded using an integrated vacuum forming die 1 that is not a split mold, a pressing plug 2a12b, and a clamp 3a13b for fixing the peripheral edge of the skin material.
前記成形型１には、キャビティ４が設けられているが、
キャビティ４の周縁部には表皮材を成形した際、他部材
と合せ部を形成するように屈曲するアンダーカット部５
ａｓ５ｂか設けられ、さらにバンクレストとして好まし
いデザインを得るため二つの深絞り部６ ａｓ ６ ｂ
が設けられ、深絞り部８ａＮ６ｂにはそれぞ模ＦＪＪ表
して凹凸状のデザインか施されている。そして又成形型
１には複数の真空引き孔７とそれに連絡する真空引き室
８が設けられて、真空引き室８は配管を介して真空５」
テンプ９へ連結されている。今熱可塑性材料即ち表皮材
１０（表皮材としては塩ビ、熱可塑性エラストマー、合
成皮革等をシート状に形成したもの等、或いは又塩ビと
布地、ポリエヂνノフォートと布地、ポリエチレンフォ
ームと熱可塑性、１ラストマーを複合してシート状に形
成したもの等か使用される）を第１図に示すように成形
型１」−に載置し、クラップ３ａ１３ｂによりその縁部
を固定する。ついで表皮材をそれが軟化し真空成形に適
応する温度（約り６０℃〜約２００℃）に加熱し、同時
に真空ポンプを作動し表皮材を・トヤビティ表面に向っ
て吸引し成形を開始する。この場合吸引のろではアンダ
ーカット部５ａｓ５ｂ及び深絞り部６ａ１６ｂ及びそれ
に設けられた凹凸状デザイン部に完全に密着して、これ
らの型に対応した形に成形することはできないが、第２
図及び第３図に示すようにアンダーカット部及び深絞り
部さらに深絞り部に設けた凹凸状デザイン部に対応する
面を備えたプラグ２ａ％２ｂを補助手段として」１方よ
りキャビティ内に導入し、最初に真空ポンプによる吸引
と相俟ってアンダーカット部５ａ５ｂにプラグ２ ａ
％ ２ ｂの対応する型面を押圧して成形し、ついで同
様にして深絞り部を成形する。このようにＮｌｉｌ手助
として上記のようなプラグを使用することにより表皮祠
は型どおりに完全なアンダーカット部即ち対応の屈曲部
、及び深絞り部さらに深絞り部に対応する凹凸状デザイ
ンを有する形状に成形することができる。ついて第４図
に示すように、真空を解除し、プラグを引き上げること
により成形は終了する。その後表皮材を製品として取り
出してもよいし、又引き続きウレタン等の発泡素材をキ
ャビティ内に注入し発泡させ、発泡体と表皮材とか一体
となった成形品を作製してもよい。尚表皮材はシート等
場合、柔軟状態に成形されるので、成形型よりの表皮（
才の取出しは、相当大きくかつ複雑なアノダーカノトが
設けられていても、容易であり問題はない。The mold 1 is provided with a cavity 4,
At the peripheral edge of the cavity 4, there is an undercut portion 5 that is bent to form a mating portion with other parts when the skin material is molded.
AS5b is provided, and two deep drawn parts 6AS6B are provided to obtain a preferable design as a bankrest.
are provided, and each of the deep drawn portions 8aN6b is provided with a concave and convex design representing a pattern of FJJ. The mold 1 is also provided with a plurality of vacuum holes 7 and a vacuum chamber 8 communicating therewith, and the vacuum chamber 8 is connected to the vacuum chamber 5 via piping.
It is connected to the balance 9. Thermoplastic material, i.e., skin material 10 (skin material is a sheet made of vinyl chloride, thermoplastic elastomer, synthetic leather, etc., or vinyl chloride and fabric, polyethylene foam and fabric, polyethylene foam and thermoplastic, etc.) As shown in FIG. 1, a lastomer composite formed into a sheet shape is placed in a mold 1'', and its edges are fixed with clamps 3a13b. Next, the skin material is heated to a temperature (approximately 60 DEG C. to approximately 200 DEG C.) at which it becomes soft and suitable for vacuum forming, and at the same time, the vacuum pump is operated to suck the skin material toward the toyabity surface and start molding. In this case, with the suction roller, it is not possible to completely adhere to the undercut portion 5as5b, the deep drawn portion 6a16b, and the concavo-convex design portion provided thereon, and mold it into a shape corresponding to these molds.
As shown in Figures 3 and 3, a plug 2a% 2b having a surface corresponding to an undercut part, a deep drawing part, and a concavo-convex design part provided in the deep drawing part is introduced into the cavity from one side as an auxiliary means. First, the plug 2a is attached to the undercut portion 5a5b by suction by the vacuum pump.
The mold surface corresponding to % 2 b is pressed and molded, and then a deep drawn part is molded in the same manner. Thus, by using the plug as described above as a Nlil aid, the epidermis has a complete undercut, i.e., a corresponding bend, and a deep drawing, as well as a concavo-convex design corresponding to the deep drawing. Can be molded into any shape. Then, as shown in FIG. 4, the molding is completed by releasing the vacuum and pulling up the plug. Thereafter, the skin material may be taken out as a product, or a foamed material such as urethane may be subsequently injected into the cavity and foamed to produce a molded product in which the foam and the skin material are integrated. In addition, when the skin material is a sheet, etc., it is molded in a flexible state, so the skin (
Even if a fairly large and complicated anodarkanoto is provided, it is easy to extract the talent and there is no problem.
第５図は以上のようにして発泡体と一体成形された表皮
材を用いてシートのバックレストを作製した状態を示す
断面図であるか、本発明方法によるときは図示のように
表皮材１０の所要部例えばバックレスト両側の突端部１
１．１１′崎には凹凸部その他の複雑な模様を施すこと
かできるし、又バックトリム１２との合せ部１３．１３
’もア／ダーカットを所望形状にすることができるので
、合せ面か突出したりすることのない好ましい形状で表
皮材合せ部１４．１４′を形成することかできる。FIG. 5 is a sectional view showing a state in which a seat backrest is manufactured using the skin material integrally molded with the foam as described above, or when the method of the present invention is used, the skin material 10 is formed as shown in the figure. For example, the projecting ends 1 on both sides of the backrest
1.11' It is possible to apply uneven parts and other complicated patterns to the slope, and also the part 13.13 where it meets the back trim 12.
Since the a/dar cut can also be formed into a desired shape, the skin material mating portions 14 and 14' can be formed in a preferred shape without protruding the mating surfaces.
以」二の次第で本発明方法によるときは、真空成形であ
るにもかかわらず、プラグを用いることにより、表皮祠
の周縁の他部材との合せ部を好ましい形状に加工するこ
とができるし、また、深絞り等のように複雑な形状であ
っても完全に成形することかできるし、さらにまた表皮
材の表面に凹凸状その他の複雑な形状模様を設けること
も可能である。According to the second aspect, when using the method of the present invention, even though vacuum forming is performed, by using a plug, the peripheral edge of the skin shell where it joins with other parts can be processed into a desirable shape, and also. Even complex shapes such as deep drawing can be completely formed, and it is also possible to provide the surface of the skin material with irregularities or other complicated patterns.
第】図、第２図、第３図及び第４図は本発明方法による
自動車のシートバックレスト表皮材の成形を順を追って
説明する図である。第５図は本発明に係る表皮祠を用い
てシートのバックレストを作製した状態を示す図である
。
ね号の説明
１・・・成形型、２ａ、２ｂ−・・プラグ、３ａ、３ｂ
・・・クランプ、４・・・キャビティ、５ａ、５ｂ・・
・アンダーカット部、６ａ、６ｂ・・・深絞り部、７・
・・真空引き孔、８・・・真空引き室、９・・・真空、
１゛／ブ、１０・・・表皮材、１１．１１’・・・突端
部、１２・・・バックトリム、１３．１３’・・・合せ
部、１４．１４’・・・表皮材合せ部。
特許出願人 富士重工業株式会ネ−１
代理人 弁理士 口１ 代 蒸 １４ｉ■
第
１
第４図
５図
１１′1, 2, 3, and 4 are diagrams illustrating step-by-step the formation of an automobile seat backrest skin material by the method of the present invention. FIG. 5 is a diagram showing a state in which a backrest of a seat is manufactured using the epidermis according to the present invention. Explanation of number 1...Mold, 2a, 2b-...Plug, 3a, 3b
...Clamp, 4...Cavity, 5a, 5b...
・Undercut part, 6a, 6b...deep drawing part, 7・
... Vacuum suction hole, 8 ... Vacuum suction chamber, 9 ... Vacuum,
1゛/b, 10... Skin material, 11.11'... Tip end, 12... Back trim, 13.13'... Joining part, 14.14'... Skin material joining part . Patent applicant Fuji Heavy Industries Co., Ltd. 1 Agent Patent attorney Kuchi 1 14i ■ 1 Figure 4 5 Figure 11'
Claims (1)
、アンダーカット部、深絞り部、模様賦形用等の凹凸面
を有する成形型を用い、さらに真空成形と同時に、上記
アンダーカット部、深絞り部、模様賦形用等の凹凸面に
対応した輪郭形状をイ「するプラグを用いて成形型の対
応する形状部分へ熱可塑性材料を抑圧密着させることを
特徴とする表皮材の真空成形方法。In a method of vacuum forming a thermoplastic material to obtain a skin material, a mold having an uneven surface for forming an undercut, a deep drawing, a pattern, etc. is used. A vacuum forming method for a skin material, characterized in that a thermoplastic material is compressed and brought into close contact with a corresponding shaped part of a mold using a plug that has a contour shape corresponding to an uneven surface such as a drawing part or a pattern forming part. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59070969A JPS60214926A (en) | 1984-04-11 | 1984-04-11 | Vacuum molding of skin material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59070969A JPS60214926A (en) | 1984-04-11 | 1984-04-11 | Vacuum molding of skin material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60214926A true JPS60214926A (en) | 1985-10-28 |
Family
ID=13446857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59070969A Pending JPS60214926A (en) | 1984-04-11 | 1984-04-11 | Vacuum molding of skin material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60214926A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63151822U (en) * | 1987-03-27 | 1988-10-05 | ||
| US5798079A (en) * | 1996-08-20 | 1998-08-25 | Fort James Corporation | Method and apparatus for forming drink-thru cup lids |
| US8043539B2 (en) | 2002-03-13 | 2011-10-25 | Nissei Company, Ltd. | Process for producing biodegradable molded item and molding dies therefor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5759710A (en) * | 1980-09-30 | 1982-04-10 | Mikuni Seisakusho:Kk | Method for molding thermoplastic resin sheet |
| JPS57146618A (en) * | 1981-03-07 | 1982-09-10 | Toyota Motor Corp | Vacuum forming method by plug |
-
1984
- 1984-04-11 JP JP59070969A patent/JPS60214926A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5759710A (en) * | 1980-09-30 | 1982-04-10 | Mikuni Seisakusho:Kk | Method for molding thermoplastic resin sheet |
| JPS57146618A (en) * | 1981-03-07 | 1982-09-10 | Toyota Motor Corp | Vacuum forming method by plug |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63151822U (en) * | 1987-03-27 | 1988-10-05 | ||
| US5798079A (en) * | 1996-08-20 | 1998-08-25 | Fort James Corporation | Method and apparatus for forming drink-thru cup lids |
| US8043539B2 (en) | 2002-03-13 | 2011-10-25 | Nissei Company, Ltd. | Process for producing biodegradable molded item and molding dies therefor |
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