JPH0775957B2 - Manufacturing method of molded ceiling material for automobiles - Google Patents
Manufacturing method of molded ceiling material for automobilesInfo
- Publication number
- JPH0775957B2 JPH0775957B2 JP63091770A JP9177088A JPH0775957B2 JP H0775957 B2 JPH0775957 B2 JP H0775957B2 JP 63091770 A JP63091770 A JP 63091770A JP 9177088 A JP9177088 A JP 9177088A JP H0775957 B2 JPH0775957 B2 JP H0775957B2
- Authority
- JP
- Japan
- Prior art keywords
- molded ceiling
- ceiling material
- automobiles
- fiber
- adhesive
- 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 - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
- B60R13/0212—Roof or head liners
- B60R13/0225—Roof or head liners self supporting head liners
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は軽量で剛性に優れ、組立作業性のよい自動車用
成形天井材の製造方法に関する。Description: TECHNICAL FIELD The present invention relates to a method for manufacturing a molded ceiling material for an automobile, which is lightweight, has excellent rigidity, and has good assembly workability.
自動車業界において、省エネルギー時代の今日、自動車
の軽量化によるエネルギーの節減は大きな課題の一つで
ある。In the automobile industry today, in the age of energy conservation, saving energy by reducing the weight of automobiles is one of the major issues.
従来、成形天井材の軽量化を図るために、繊維質基材の
両面に補強材を貼り合わせたものが知られているが、成
形天井材にサンルーフ等の開口部を設けた場合など強度
不足のため組み立て時に折損事故が起こることがあり、
剛性が大きく組立作業性に優れた成形天井材が要望され
ていた。Conventionally, in order to reduce the weight of a molded ceiling material, it is known that a reinforcing material is attached to both sides of a fibrous base material, but the strength is insufficient when the molded ceiling material is provided with an opening such as a sunroof. Due to this, a breakage accident may occur during assembly,
There has been a demand for a molded ceiling material that has high rigidity and is easy to assemble.
しかしながら、剛性の向上を図ると重量が増し、重量を
軽くすると剛性不足となるという問題があり、満足すべ
き成形天井材は得られていなかった。However, there has been a problem that the weight is increased when the rigidity is improved, and the rigidity is insufficient when the weight is reduced, and a satisfactory molded ceiling material has not been obtained.
本発明は従来の軽量成形天井材の欠点であった剛性不足
から生ずる形状不安定性を成形天井材の補強材を工夫す
ることにより解決し、組立作業性に優れた自動車用成形
天井材の製造方法をを提供することを目的とする 〔課題を解決するための手段〕 この発明は、目付重量300〜700g/m2の繊維質又は発泡質
基材の片面又は両面に、長さ30〜100mmの有機系又は無
機系繊維の繊維補強材を無方向性に配置し、その上に表
面材層を設けてなる自動車用成形天井材に関するもので
ある。The present invention solves the shape instability caused by insufficient rigidity, which is a drawback of the conventional lightweight molded ceiling material, by devising a reinforcing material for the molded ceiling material, and a method for manufacturing a molded ceiling material for automobiles having excellent assembly workability. (Means for solving the problem) This invention is one or both sides of a fiber or foam base material having a basis weight of 300 to 700 g / m 2 , and a length of 30 to 100 mm. The present invention relates to a molded ceiling material for automobiles in which a fiber reinforcing material of organic or inorganic fibers is non-directionally arranged and a surface material layer is provided thereon.
本発明において、繊維質基材としては、グラスウール
板、屑フェルト板、混紡フェルト板、ダンボール紙等が
用いられ、又発泡質基材としてはポリスチレンシート、
発泡ウレタンシート等が用いられる。そして、これらの
基材は目付重量が300〜700g/m2のものが用いられる。こ
れより軽いものを使用すると製品強度が不十分となり、
これより重いものを使用すると製品重量が重くなってし
まい好ましくない。また、基材の密度は20〜350kg/m3の
ものが好ましく用いられる。基材の材質は燃焼性、形状
安定性の点からグラスウールが好ましく用いられる。In the present invention, as the fibrous base material, a glass wool board, a scrap felt board, a blended felt board, a cardboard paper, or the like is used, and the foam base material is a polystyrene sheet,
A urethane foam sheet or the like is used. These base materials having a basis weight of 300 to 700 g / m 2 are used. If you use something lighter than this, the product strength will be insufficient,
If a heavier one is used, the weight of the product becomes heavy, which is not preferable. A substrate having a density of 20 to 350 kg / m 3 is preferably used. As the material of the base material, glass wool is preferably used from the viewpoints of flammability and shape stability.
基材の片面又は両面には、長さが30〜100mmの有機又は
無機系の繊維補強材が無方向性に配置されている。繊維
補強材はロービング状のものが好ましく、長さが30〜10
0mmにチョップ状に切断されている。長さが30mm未満で
あると、十分な剛性が得られず、100mmを超えると無方
向性に配置することが困難となる。An organic or inorganic fiber reinforcing material having a length of 30 to 100 mm is non-directionally arranged on one surface or both surfaces of the base material. The fiber reinforcement is preferably roving and has a length of 30 to 10
It is chopped to 0 mm. If the length is less than 30 mm, sufficient rigidity cannot be obtained, and if the length exceeds 100 mm, it becomes difficult to arrange in a non-directional manner.
繊維補強材としては、伸度が小さいものが好ましく、有
機質のものとしては、ビニロン、綿、レーヨン、ポリエ
ステル、ポリプロピレン、麻等の繊維が、無機質のもの
としてはガラス繊維等の繊維が好ましく用いられる。こ
れらの中で、ガラス、ビニロンのロービングが特に好ま
しく用いられる。As the fiber reinforcing material, those having a small elongation are preferable, as the organic material, fibers such as vinylon, cotton, rayon, polyester, polypropylene and hemp are used, and as the inorganic material, fibers such as glass fiber are preferably used. . Among these, glass and vinylon roving are particularly preferably used.
繊維補強材は無方向性に配置され接着剤で固定されてい
ることが好ましい。この繊維補強材及び接着材の目付重
量はそれぞれ30〜100g/m2及び20〜60g/m2とすることが
好ましい。The fiber reinforcement is preferably arranged non-directionally and fixed with an adhesive. It is preferred that the weight per unit area of the fiber reinforcement and the adhesive are each a 30 to 100 g / m 2 and 20 to 60 g / m 2.
繊維補強材層の上には表面材層が設けられ成形天井材の
表面を平滑にしている。表面材としては、弗素樹脂フイ
ルム、発泡ウレタンシート、ポリエステルフイルム等が
用いられるが、成形性を考慮すると厚さ２〜8mmの発泡
ウレタンシートが好適に用いられる。A surface material layer is provided on the fiber reinforcement material layer to smooth the surface of the molded ceiling material. As the surface material, a fluororesin film, a urethane foam sheet, a polyester film or the like is used, but in consideration of moldability, a urethane foam sheet having a thickness of 2 to 8 mm is preferably used.
この発明は上記成形天井材の好ましい製造方法に関する
もので、目付重量300〜700g/m2の繊維質又は発泡質基材
の片面又は両面に、有機系又は無機系繊維のロービング
を30〜100mmの長さに切断した繊維補強材と粉末フェノ
ール樹脂系接着剤とをまぶして得られたものを無方向性
に散布し、その上に表面材を重ねて熱圧成形することを
特徴とする。The present invention relates to a preferred method for producing the molded ceiling material, wherein one or both sides of a fiber or foam substrate having a basis weight of 300 to 700 g / m 2 has an organic or inorganic fiber roving of 30 to 100 mm. It is characterized in that a fiber reinforcement material cut into lengths and sprinkled with a powdered phenolic resin adhesive are sprinkled in a non-directional manner, and a surface material is superposed thereon and subjected to thermocompression molding.
上記所定長さのロービングと粉末フェノール樹脂系接着
剤とをまぶすと、繊維と繊維の交差したところに粉末接
着剤を多く存在させることができ、このような状態で熱
圧成形を行うと繊維補強材同士が強固に固着し、十分な
剛性を有する成形天井材が得られる。この接着剤として
液状の接着剤を用いると、接着剤が繊維と繊維の交差し
たところに集まらず、繊維同士の固定を行うには大量の
接着剤が必要となる。また、液状の接着剤を用いると繊
維同士がブロック化してしまい、繊維補強材を無方向に
散布することが困難となる。ロービングチョップは散布
量の加減により任意に剛性の調整が可能であり、材料の
節約を図ることができる。When the roving of the above-mentioned predetermined length is sprinkled with the powdered phenolic resin adhesive, a large amount of the powdered adhesive can be present at the intersections of the fibers, and when the thermocompression molding is performed in such a state, the fiber reinforced The materials firmly adhere to each other, and a molded ceiling material having sufficient rigidity can be obtained. When a liquid adhesive is used as this adhesive, the adhesive does not collect at the intersections of the fibers, and a large amount of the adhesive is required to fix the fibers to each other. Further, when a liquid adhesive is used, the fibers are blocked and it becomes difficult to spray the fiber reinforcement in a non-directional manner. The roving chop can have its rigidity arbitrarily adjusted by adjusting the amount of spraying, thus saving the material.
繊維補強材を散布した後、この上に発泡ウレタンシート
等の表面材を重ねて熱圧成形を行う。表面材は得られる
成形天井材の表面の凹凸をなくすとともに、型からの成
形品の離型を容易にするために用いられる。成形条件
は、160〜230℃の温度で、１〜４分加熱加圧することが
好ましい。After the fiber reinforcing material is sprayed, a surface material such as a urethane foam sheet is superposed on the fiber reinforcing material and thermocompression molding is performed. The surface material is used to eliminate the irregularities on the surface of the obtained molded ceiling material and to facilitate the release of the molded product from the mold. The molding conditions are preferably a temperature of 160 to 230 ° C. and heating and pressing for 1 to 4 minutes.
このようにして、軽量で、剛性の大きい、組立作業性に
優れた自動車用軽量成形天井材が得られる。In this way, a lightweight molded ceiling material for an automobile, which is lightweight, has high rigidity, and is excellent in assembling workability, can be obtained.
以下、本発明を実施例に基づいて詳細に説明するが、本
発明はこれに限定されるものではない。Hereinafter, the present invention will be described in detail based on examples, but the present invention is not limited thereto.
実施例 第１図は基材に繊維補強材を配置したところを示す斜視
図で、１は基材、２は繊維補強材である。第２図は成形
天井材の断面図で３は表面材である。Example FIG. 1 is a perspective view showing a fiber reinforcing material arranged on a base material, where 1 is a base material and 2 is a fiber reinforcing material. FIG. 2 is a sectional view of the molded ceiling material, and 3 is a surface material.
表に示すように、目付重量400g/m2のグラスウール板に
長さ50mmのガラスロービングチョップとフェノール樹脂
粉末接着剤とを所定量まぶして得られたものを無方向性
に散布し、その上に発泡ウレタンシートに液状フェノー
ル樹脂接着剤を塗布したものを貼り付け、200℃で２分
間、5kgf/cm2で熱圧成形して成形天井材を得た。As shown in the table, a glass wool plate having a basis weight of 400 g / m 2 and a length of 50 mm of glass roving chop and a phenol resin powder adhesive are sprinkled in a non-directional manner on a product obtained by sprinkling the same amount on the glass, A urethane foam sheet coated with a liquid phenolic resin adhesive was attached, and thermocompression molded at 200 ° C. for 2 minutes at 5 kgf / cm 2 to obtain a molded ceiling material.
このものの製品重量、曲げ強度を表に示す。The product weight and bending strength of this product are shown in the table.
比較例１、比較例２ 目付重量400g/m2のグラスウール板を表に示すようにビ
ニロン寒冷紗で補強して得られた成形天井材を比較例１
とし、目付重量800g/m2にグラスウール板の成形天井材
を比較例２としてこれらの製品重量、曲げ強度を表に示
した。Comparative Example 1 and Comparative Example 2 A molded ceiling material obtained by reinforcing a glass wool board having a basis weight of 400 g / m 2 with vinylon gauze as shown in Table 1 is used.
The weight and bending strength of these products are shown in the table as Comparative Example 2 using a molded ceiling material of glass wool board having a basis weight of 800 g / m 2 .
〔発明の効果〕 本発明により、軽量で剛性に優れる上に、組立作業性に
優れた自動車用軽量成形天井材を安価に得ることができ
た。 [Advantages of the Invention] According to the present invention, it is possible to obtain a lightweight molded ceiling material for an automobile, which is lightweight, has excellent rigidity, and is excellent in assembling workability at low cost.
第１図は基材に繊維補強材を散布したところを示す斜視
図であり、第２図は本発明の成形天井材の断面図であ
る。 符号の説明 1.基材、2.繊維補強材 3.表面材FIG. 1 is a perspective view showing a state where a fiber reinforcing material is dispersed on a base material, and FIG. 2 is a sectional view of a molded ceiling material of the present invention. Explanation of symbols 1. Base material, 2. Fiber reinforcing material 3. Surface material
Claims (1)
基材の片面又は両面に、有機系又は無機系繊維のロービ
ングを30〜100mmの長さに切断した繊維補強材と粉末フ
ェノール樹脂系接着剤とをまぶして得られたものを無方
向性に散布し、その上に表面材を重ねて熱圧成形するこ
とを特徴とする自動車用成形天井材の製造方法。1. A fiber reinforcing material and powder obtained by cutting a roving of organic or inorganic fiber into a length of 30 to 100 mm on one or both sides of a fibrous or foam base material having a basis weight of 300 to 700 g / m 2. What is claimed is: 1. A method for producing a molded ceiling material for automobiles, which comprises non-directionally spraying a product obtained by sprinkling with a phenol resin-based adhesive, and superimposing a surface material on the sprayed material, and thermocompression molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63091770A JPH0775957B2 (en) | 1988-04-15 | 1988-04-15 | Manufacturing method of molded ceiling material for automobiles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63091770A JPH0775957B2 (en) | 1988-04-15 | 1988-04-15 | Manufacturing method of molded ceiling material for automobiles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01309840A JPH01309840A (en) | 1989-12-14 |
| JPH0775957B2 true JPH0775957B2 (en) | 1995-08-16 |
Family
ID=14035808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63091770A Expired - Lifetime JPH0775957B2 (en) | 1988-04-15 | 1988-04-15 | Manufacturing method of molded ceiling material for automobiles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0775957B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6913816B2 (en) * | 2001-10-02 | 2005-07-05 | Building Materials Investment Corporation | Composite mat product for roofing construction |
| DE102004005487B3 (en) * | 2004-02-04 | 2005-10-13 | Adam Opel Ag | Motor vehicle with cladding element and rail |
| CN101864813A (en) * | 2010-05-27 | 2010-10-20 | 上海一金节能科技有限公司 | Glass fiber mesh reinforced polystyrene board |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6280141A (en) * | 1985-10-04 | 1987-04-13 | Hiromi Wataya | Molded ceiling material for car |
| JPS6343961B2 (en) * | 1981-05-13 | 1988-09-02 | Mitsubishi Electric Corp |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6343961U (en) * | 1986-09-09 | 1988-03-24 |
-
1988
- 1988-04-15 JP JP63091770A patent/JPH0775957B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6343961B2 (en) * | 1981-05-13 | 1988-09-02 | Mitsubishi Electric Corp | |
| JPS6280141A (en) * | 1985-10-04 | 1987-04-13 | Hiromi Wataya | Molded ceiling material for car |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01309840A (en) | 1989-12-14 |
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