JP3011280B2 - Manufacturing method of skin-integrated foam molded product - Google Patents
Manufacturing method of skin-integrated foam molded productInfo
- Publication number
- JP3011280B2 JP3011280B2 JP3069210A JP6921091A JP3011280B2 JP 3011280 B2 JP3011280 B2 JP 3011280B2 JP 3069210 A JP3069210 A JP 3069210A JP 6921091 A JP6921091 A JP 6921091A JP 3011280 B2 JP3011280 B2 JP 3011280B2
- Authority
- JP
- Japan
- Prior art keywords
- skin
- mold
- foam
- manufacturing
- foaming
- 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
Links
Landscapes
- Instrument Panels (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、発泡型によって表皮と
発泡層を一体に成形するような成形法に関し、型閉めの
際表皮に生ずるシワの発生をコントロ−ルするようにし
た製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding method for integrally molding a skin and a foam layer with a foaming mold, and relates to a manufacturing method for controlling generation of wrinkles generated on the skin when the mold is closed. .
【0002】[0002]
【従来の技術】従来、例えば自動車のインストルメント
パネルのような内装材として用いられる発泡成形品は、
ポリ塩化ビニ−ル樹脂等によって成形された表皮と共
に、ポリウレタンフォ−ム、ポリスチレンフォ−ム、発
泡ポリエチレン等の発泡材料を発泡させて一体に成形し
ている。このような成形法は、例えば実開昭63−68
414号、特開昭63−293012号、特開平1−1
52018号、特公平2−37845号のような製造方
法として提唱され、一般的に発泡型内に表皮をセットし
た後型内に発泡材料を注入して発泡硬化させ一体成形し
ている。そして発泡成形間型内に注入した発泡材料が外
部に漏出しないよう、表皮の端部を発泡型の型合せ面に
臨ませてシ−ル面を形成するのが一般的である。2. Description of the Related Art Conventionally, foam molded products used as interior materials such as instrument panels of automobiles are, for example,
A foam material such as a polyurethane foam, a polystyrene foam, or a foamed polyethylene is foamed together with a skin formed of a polyvinyl chloride resin or the like, and is integrally molded. Such molding methods are, for example, real HirakiAkira 63-68
No. 414, JP-A-63-293012, JP-A-1-1
No. 5,2018, and Japanese Patent Publication No. 2-37845 are proposed. Generally, after a skin is set in a foaming mold, a foaming material is injected into the mold, foamed and hardened, and integrally molded. In order to prevent the foamed material injected into the foaming mold from leaking to the outside, it is general to form a seal surface with the end of the skin facing the mating surface of the foaming mold.
【0003】[0003]
【発明が解決しようとする課題】しかし上述のような発
泡型において、表皮の形成するシ−ル面が型閉めの方向
に対して傾斜角を有するような場合、型閉め操作によっ
て同部の表皮がシ−ル面に沿ってずれ、結果的に成形品
の端部近傍にシワが発生するという不具合があった。そ
してかかる表皮一体成形品においては、表皮は外観面側
であるため、シワの発生は製品そのものの不良となるこ
とから、改良が望ましかった。However, in the above-mentioned foaming mold, when the sealing surface formed by the skin has an inclination angle with respect to the mold closing direction, the skin of the same part is formed by the mold closing operation. However, there was a problem that wrinkles were generated near the end of the molded product as a result. Further, in such a skin-integrated molded product, since the skin is on the outer surface side, wrinkles are generated on the product itself, so that improvement is desired.
【0004】[0004]
【課題を解決するための手段】かかる課題を解決するた
め、本発明は型閉め方向に対して傾斜したシ−ル面を形
成するような発泡型において、表皮のシ−ル面近傍で、
発泡材料充填部に突条部を設けるとともに、発泡型には
該突条部に対応する形状の形状部を設けた。そして形状
部と突条部を位置合せして表皮をセットした後、型内に
発泡材料を注入し表皮の裏面に発泡層を一体に成形する
ようにした。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a foaming mold that forms a sealing surface inclined with respect to the mold closing direction .
A ridge portion was provided in the foam material filling portion, and a shape portion having a shape corresponding to the ridge portion was provided in the foaming mold. Then, after setting the skin with the shape portion and the ridge portion aligned, a foam material was injected into the mold, and a foam layer was integrally formed on the back surface of the skin.
【0005】[0005]
【作用】表皮のシール面近傍で、発泡材料充填部に設け
た突条部と発泡型に設けた形状部の位置を合せてセット
することにより型閉め時にシワの発生がシ−ル面と突条
部の間に限定され、その発生位置をコントロ−ル出来
る。つまり従来であればシワの発生位置が成行きであっ
たため、製品として不良となるか否かが成形完了まで判
らなかったが、本案の場合はシワの発生を全く皆無とす
る訳ではないが、製品として不良となるといった不具合
がない。[Function] By setting the ridge provided on the foam material filling portion and the shape provided on the foaming mold in the vicinity of the sealing surface of the skin so that wrinkles are generated when the mold is closed. It is limited between the ridges, and its generation position can be controlled. In other words, in the conventional case, the occurrence position of wrinkles was successful, so it was not known until the completion of molding whether or not the product was defective, but in the case of the present invention, the occurrence of wrinkles is not completely eliminated, There is no defect such as failure as a product.
【0006】[0006]
【実施例】本発明の表皮一体発泡成形品の製造方法につ
いて添付した図面に基づき説明する。図1は本発明の製
造方法に用いる発泡型の縦断面図、図2は図1のA部拡
大図、図3は同部の従来例、図4は本発明の方法で製造
される自動車のインストルメントパネルの斜視図、図5
は図4のB−B線断面図である。本発明の表皮一体発泡
成形品の製造方法は、例えば図4に示すような車両のイ
ンストルメントパネル1の製造に適用され、図1に示す
ような発泡型2 ,3で一体に成形される。すなわちこ
のインストルメントパネル1は、芯材4と表皮5とその
間の発泡体層6が一体に成形され、例えば表皮5はポリ
塩化ビニ−ル樹脂等をスラッシュ成形する等によって表
面(図1の下面側)に予め絞加工等を施している。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a method for producing a foam-integrated molded article of the present invention. 1 is a longitudinal sectional view of a foam mold used in the manufacturing method of the present invention, FIG. 2 is an enlarged view of a portion A in FIG. 1, FIG. 3 is a conventional example of the same portion, and FIG. Perspective view of instrument panel, FIG. 5
FIG. 5 is a sectional view taken along line BB of FIG. 4. The method for producing a skin-integrated foam molded article of the present invention is applied to, for example, the production of an instrument panel 1 for a vehicle as shown in FIG. 4, and is integrally molded with foam dies 2 and 3 as shown in FIG. That is, in the instrument panel 1, a core material 4, a skin 5, and a foam layer 6 therebetween are integrally formed. For example, the surface of the skin 5 is formed by slash-molding a polyvinyl chloride resin or the like (the lower surface in FIG. 1). Side) has been subjected to drawing or the like in advance.
【0007】それではかかる発泡型2 ,3による本発
明の成形法について、従来の方法と比較しながら説明す
る。発泡上型2は下型3に対して上下動自在とされ、上
動して型開きし下動して型閉めする。そして型閉めした
際、成形品の形状に合致した発泡材料充填部7を形成す
る。型開きしている間、型内に表皮5と芯材4がセット
される。そして下型3にセットされた表皮5の端部の一
部は充填部7周囲の型合せ面まで延出し、型閉め時に芯
材4と表皮5、或いは上型2と表皮5の間でシ−ル面8
を形成すべく位置決めされる。Now, the molding method of the present invention using the foaming dies 2 and 3 will be described in comparison with a conventional method. The foam upper mold 2 is vertically movable with respect to the lower mold 3, and moves upward to open the mold and move downward to close the mold. Then, when the mold is closed, a foam material filling portion 7 conforming to the shape of the molded product is formed. While the mold is opened, the skin 5 and the core 4 are set in the mold. Then, a part of the end of the skin 5 set on the lower mold 3 extends to the mold mating surface around the filling portion 7, and the gap between the core 4 and the skin 5 or between the upper mold 2 and the skin 5 when the mold is closed. -Lead surface 8
Are positioned.
【0008】ところで、このシ−ル面8の面方向は上型
2の型閉め、型開き方向(垂直上下方向)に対して傾斜
角を有しているため、従来では表皮5のシ−ル面8近傍
にシワが発生していた。すなわち図3に示すように上型
2の型閉めによって表皮5は、シ−ル面8に沿って図中
X方向にずれようとし、これに抵抗するY方向からの抵
抗力によってシ−ル面8近傍、特にシール面8の下方ま
わりの表皮5にシワが発生するというものである。しか
もこのシワの発生部位は、成行きまかせであり、この結
果製品の外観品質を損ねることが多々あった。Since the surface direction of the seal surface 8 has an inclination angle with respect to the mold closing and mold opening directions (vertical vertical direction) of the upper mold 2, conventionally, the seal of the skin 5 is conventionally used. Wrinkles occurred near the surface 8. That is, as shown in FIG. 3, by closing the upper die 2, the skin 5 tends to shift in the X direction in the figure along the sealing surface 8, and the sealing surface is resisted by the resistance from the Y direction. Wrinkles are generated in the vicinity of the surface 8, particularly in the skin 5 around the lower side of the sealing surface 8. In addition, the wrinkles are generated at random, and as a result, the appearance quality of the product is often impaired.
【0009】そこで本発明の場合は、図2に示すよう
に、表皮5のシ−ル面8近傍の製品部(発泡材料が充填
される充填部7)に予め突条部10を設け、一方、下型
3にも同一対応形状の形状部11を設けている。そして
この表皮5の突条部10は、シ−ル面5に沿って連続す
るものでもよく、又複数の突条部10をシ−ル面5に沿
って断続的に設けるようにしたものでも良い。又、この
突出方向は、図のように製品外観面側としても良いし、
反対に製品の内方に向けたものでも良い。しかし内方よ
りも外方に向けて突出させた方がシワが目立ちにくいと
いう利点がある。又、表皮5への突条部10の形成は、
例えばプレス成形、真空成形、スラッシュ成形等によ
る。Therefore, in the case of the present invention, as shown in FIG. 2, a product portion (filled with a foam material) near the seal surface 8 of the skin 5 is used.
The filling portion 7) is provided with a ridge 10 in advance , and the lower mold 3 is also provided with a shape portion 11 having the same corresponding shape. The ridges 10 of the skin 5 may be continuous along the seal surface 5 or a plurality of ridges 10 may be provided intermittently along the seal surface 5. good. In addition, this protruding direction may be on the product appearance surface side as shown in the figure,
Conversely, it may be directed toward the inside of the product. However, there is the advantage that wrinkles are less noticeable when projected outward than inward. Also, the formation of the ridge portion 10 on the skin 5
For example, press molding, vacuum molding, slash molding or the like is used.
【0010】以上のような表皮5は、突条部10が下型
3の形状部11に嵌め込まれる状態で位置決めされ、次
いで芯材4がセットされた後型閉めされると、端部の重
合部にシ−ル面8が形成される。そして図1に示す注入
口12から発泡材料が注入され、この発泡材料は表皮5
と芯材4の間の充填部7に入り込む。尚、前記型閉め
は、発泡材料を充填部7に充填した後に行なうこともあ
る。この型閉めの際、図2に示すようにシ−ル面8に
は、従来と同様表皮5に対してX方向の力が作用する
が、突条部10と形状部11によってそれより下方の製
品部には力が伝達されず、シワはシ−ル面8と突条部1
0の間に限定されることとなる。そしてこの突条部10
の位置は、例えば図5に示すようにインストルメントパ
ネル1のデフロスタ部のウインドガラス14の付根部と
することにより、ウインドガラス14下方のセラミック
カラ−15部によって目立たせないことが出来る。尚、
この方法によってシワの発生位置をコントロ−ル出来る
ばかりでなく、シワの量も減らせることが判明した。[0010] The outer skin 5 as described above is positioned in a state where the ridge portion 10 is fitted into the shape portion 11 of the lower mold 3, and after the core material 4 is set and then the mold is closed, the end portion is overlapped. A sealing surface 8 is formed at the portion. Then, a foam material is injected from the injection port 12 shown in FIG.
And enters the filling portion 7 between the core material 4 and the core material 4. The closing of the mold may be performed after filling the filling portion 7 with the foam material. When the mold is closed, a force in the X direction acts on the skin 5 as shown in FIG. No force is transmitted to the product part, wrinkles are formed on the seal surface 8 and the ridge 1
It will be limited to 0. And this ridge 10
5 can be made inconspicuous by the ceramic collar 15 below the window glass 14, for example, by setting the root of the window glass 14 in the defroster section of the instrument panel 1 as shown in FIG. still,
It has been found that this method can not only control the position of wrinkles but also reduce the amount of wrinkles.
【0011】[0011]
【発明の効果】以上のように本発明の表皮一体発泡成形
品の製造方法は、発泡型内にセットした表皮によって型
閉め方向から傾斜した方向にシ−ル面を形成し、この型
内に発泡材料を注入して表皮一体の発泡成形品を成形す
るようにした製造方法において、表皮のシ−ル面近傍
で、発泡材料充填部に突条部を設けるとともに、発泡型
には該突条部に対応する形状の形状部を設け、この形状
部と突条部を位置合せして表皮をセットした後型内に発
泡材料を注入し、表皮の裏面に発泡層を一体に形成する
ようにしたので、発泡型の型閉め時に生ずるシワの発生
位置を適切な位置にコントロ−ル出来、又シワの発生量
を減らすことが出来るため、製品の外観品質を低下させ
ず、又、製品不良率を引き下げることが出来る。As described above, the method for producing a skin-integrated foam molded article according to the present invention uses a skin set in a foaming mold.
Form a sealing surface in a direction inclined from the closing direction,
Inject foam material into the inside to form a foam molded product with integral skin
In the manufacturing method, the vicinity of the seal surface of the epidermis
In addition to providing a ridge in the foam material filling section,
Is provided with a shape portion having a shape corresponding to the ridge portion.
After setting the skin and aligning the ridge and
Inject foam material and form a foam layer integrally on the back of the skin
As a result, the position of wrinkles generated when the foaming mold is closed can be controlled to an appropriate position, and the amount of wrinkles can be reduced. The defect rate can be reduced.
【図1】本発明の製造方法に用いる発泡型の縦断面図FIG. 1 is a longitudinal sectional view of a foaming mold used in the production method of the present invention.
【図2】図1のA部拡大図FIG. 2 is an enlarged view of a portion A in FIG.
【図3】同部の従来例の説明図FIG. 3 is an explanatory view of a conventional example of the same part.
【図4】本発明の方法で製造される自動車のインストル
メントパネルの斜視図FIG. 4 is a perspective view of an automobile instrument panel manufactured by the method of the present invention.
【図5】図4のB−B線断面図FIG. 5 is a sectional view taken along line BB of FIG. 4;
(1)インストルメントパネル (5)表皮 (6)発泡体層 (7)充填部 (8)シ−ル面 (10)突条部 (11)形状部(1) Instrument panel (5) Skin (6) Foam layer (7) Filling part (8) Seal surface (10) Ridge part (11) Shape part
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7,DB名) B29C 39/00 - 39/44 B29C 33/00 - 33/76 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) B29C 39/00-39/44 B29C 33/00-33/76
Claims (1)
め方向から傾斜した方向にシ−ル面を形成し、この型内
に発泡材料を注入して表皮一体の発泡成形品を成形する
ようにした製造方法において、 前記表皮のシ−ル面近傍で、発泡材料充填部に突条部を
設けるとともに、発泡型には該突条部に対応する形状の
形状部を設け、 この形状部と突条部を位置合せして表皮をセットした後
型内に発泡材料を注入し、表皮の裏面に発泡層を一体に
形成する、 こ とを特徴とする表皮一体発泡成形品の製造方法。A sealing surface is formed in a direction inclined from a mold closing direction by a skin set in a foaming mold, and a foaming material is injected into the mold to form a foam molded product integrally with the skin. in the manufacturing method, the epidermal sheet - Le the vicinity, provided with a ridge to the foam material filling unit, provided the shape of the shape corresponding to the projecting strip portion is foamed type, the shaped portion and the butt the ridges are aligned by injecting foam material into a mold after setting the epidermis, is formed integrally with the foam layer on the back surface of the skin, the manufacturing method of the integral skin foam molded article, wherein a call.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3069210A JP3011280B2 (en) | 1991-03-08 | 1991-03-08 | Manufacturing method of skin-integrated foam molded product |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3069210A JP3011280B2 (en) | 1991-03-08 | 1991-03-08 | Manufacturing method of skin-integrated foam molded product |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04282209A JPH04282209A (en) | 1992-10-07 |
JP3011280B2 true JP3011280B2 (en) | 2000-02-21 |
Family
ID=13396134
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3069210A Expired - Fee Related JP3011280B2 (en) | 1991-03-08 | 1991-03-08 | Manufacturing method of skin-integrated foam molded product |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3011280B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20030083387A (en) * | 2002-04-22 | 2003-10-30 | 현대자동차주식회사 | Vacuum pad structure for transferring work |
-
1991
- 1991-03-08 JP JP3069210A patent/JP3011280B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH04282209A (en) | 1992-10-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0732182B1 (en) | Method for molding a laminated assembly | |
EP0704290B1 (en) | Process for manufacturing thermoplastic resin moldings | |
US5395580A (en) | Method for fabricating automotive interior components | |
US6838027B2 (en) | Method of making an interior trim panel | |
US6537669B1 (en) | Device and method for in-mold compression and/or in-mold injection and for edging a decorative material with a supporting material | |
US5746962A (en) | Method of insert molding plastic parts to provide covered edge surfaces | |
EP0734831B1 (en) | Method and device for molding laminated assemblies | |
US20090008966A1 (en) | Moulded Plastic Article and a Method for the Production Thereof | |
US6342176B2 (en) | Methods for molding resin-molded articles | |
US6331263B1 (en) | Method for producing laminated moldings | |
JP3011280B2 (en) | Manufacturing method of skin-integrated foam molded product | |
JPS6334223A (en) | Weather strip for automobile | |
JPH04249118A (en) | Manufacture of automotive interior part | |
JPH09123213A (en) | Manufacture of windowpane equipped with profile frame of elastomer | |
JPH05329849A (en) | Method for sealing mold for foam molding | |
JPH04110227A (en) | Glassrun integral type glass guide | |
JPS6339406B2 (en) | ||
JP2894132B2 (en) | Sandwich injection molding equipment | |
JPH05162168A (en) | Method for in-mold molding of skin | |
JP2006525888A (en) | Swelling lining for automotive components, corresponding components, automotive and manufacturing method | |
JPH0366124B2 (en) | ||
JPS59118437A (en) | Manufacture of head rest or the like | |
JPH05329898A (en) | Production of side body molding | |
JP3035454B2 (en) | Manufacturing method of skin-integrated foam molded product | |
JP3527575B2 (en) | Manufacturing method of two-layer molded article and mold used for it |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19991124 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071210 Year of fee payment: 8 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081210 Year of fee payment: 9 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081210 Year of fee payment: 9 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091210 Year of fee payment: 10 |
|
LAPS | Cancellation because of no payment of annual fees |