JPH031138B2 - - Google Patents
Info
- Publication number
- JPH031138B2 JPH031138B2 JP57182651A JP18265182A JPH031138B2 JP H031138 B2 JPH031138 B2 JP H031138B2 JP 57182651 A JP57182651 A JP 57182651A JP 18265182 A JP18265182 A JP 18265182A JP H031138 B2 JPH031138 B2 JP H031138B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- decorative body
- bumper cover
- masking jig
- manufacturing
- 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
- 230000000873 masking effect Effects 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 26
- 238000004519 manufacturing process Methods 0.000 claims description 19
- 229920002635 polyurethane Polymers 0.000 claims description 18
- 239000004814 polyurethane Substances 0.000 claims description 18
- 239000003973 paint Substances 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 12
- 238000000576 coating method Methods 0.000 description 31
- 239000011248 coating agent Substances 0.000 description 29
- 238000000465 moulding Methods 0.000 description 9
- 238000005034 decoration Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 239000006082 mold release agent Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000003086 colorant Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010422 painting Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000013036 cure process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- 238000007591 painting process Methods 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010107 reaction injection moulding Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
-
- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0025—Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
- B29C37/0028—In-mould coating, e.g. by introducing the coating material into the mould after forming the article
- B29C37/0032—In-mould coating, e.g. by introducing the coating material into the mould after forming the article the coating being applied upon the mould surface before introducing the moulding compound, e.g. applying a gelcoat
-
- 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
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3044—Bumpers
Description
【発明の詳細な説明】
本発明は、装飾体を有するカラーバンパーカバ
ーの製造方法に関し、詳しくは、装飾体を表面に
有し、装飾体の他部分との色が異なるカラーバン
パーカバーの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a colored bumper cover having a decorative body, and more specifically, a method for manufacturing a colored bumper cover having a decorative body on the surface and having a color different from other parts of the decorative body. Regarding.
バンパーは、衝突時の車体の保護及びバンパー
損傷の防止の理由から、ポリウレタンフオームか
らなるエネルギー吸収体を、ポリウレタンからな
るバンパーカバーで覆つたものが使用されるよう
になり、又、一方ではフアツシヨナブル面から二
色以上の多色に塗装されたり、モール等の装飾体
が取り付けられたものが使用されるようになつ
た。 In order to protect the vehicle body and prevent damage to the bumper in the event of a collision, bumpers have come to be constructed by covering an energy absorber made of polyurethane foam with a bumper cover made of polyurethane. Since then, it has come to be painted in two or more colors, or has decorations such as moldings attached.
しかし、従来の製造方法は多くの工程を必要と
するものであつた。第１図は、従来のツートンカ
ラーバンパーカバーの製造工程図である。この製
造方法を図中の符号に従つて説明する。 However, conventional manufacturing methods require many steps. FIG. 1 is a manufacturing process diagram of a conventional two-tone bumper cover. This manufacturing method will be explained according to the symbols in the drawings.
(イ) 離型材が塗布された、所定形状のキヤビテイ
を有する閉型された成形用型内に、注入口より
ポリウレタン原料を注入し、RIM成形法（反
応射出成形法）によりバンパーカバーを成形す
る。(b) A polyurethane raw material is injected from the injection port into a closed mold having a cavity of a predetermined shape and coated with a mold release agent, and a bumper cover is molded using the RIM molding method (reaction injection molding method). .
(ロ) 所定時間経過後脱型する。(b) Remove from the mold after a predetermined period of time.
(ハ) バリ加工する。(c) Perform burr processing.
(ニ) バンパーカバー表面を溶剤で洗浄し、離型剤
等の油類を除去する。(d) Clean the bumper cover surface with solvent to remove oil such as mold release agent.
(ホ) 溶剤の揮発のために、炉内で加熱し、キユア
ーする。(e) Heat and cure in a furnace to volatilize the solvent.
(ヘ) テープ等により、色分けのためのマスキング
を行なう。(f) Use tape, etc. to mask for color separation.
(ト) 表面を均一にし、着色塗料との接着を良好に
するために、プライマー処理を施す。(g) Primer treatment is applied to make the surface uniform and to improve adhesion with colored paint.
(チ) プライマーの反応を完結させ、乾燥させる為
に、炉内で加熱し、キユアーする。(H) Heat and cure in a furnace to complete the reaction of the primer and dry it.
(リ) 着色塗装を行なう。(li) Apply color painting.
(ヌ) 着色塗膜の保護及び光沢付与の為にクリアー
塗装を行なう。このクリアー塗装は、メタリツ
ク塗装のときにのみ行なわれる工程である。(N) Clear coating is applied to protect the colored paint film and add gloss. This clear coating is a process that is only performed when applying metallic coatings.
(ル) 塗料の反応を完結させ、乾燥させる為に、
炉内で加熱し、キユアーする。(l) In order to complete the reaction of the paint and dry it,
Heat and cure in a furnace.
(ヲ) マスキングに用いたテープ等を除去する。(w) Remove the tape, etc. used for masking.
尚、ツートンカラーのうち、一色が黒色等のバ
ンパーカバーの地色の場合は前記の工程で良い
が、二色とも塗装によつてなされる場合は、更に
複雑となる。 Note that if one of the two-tone colors is the ground color of the bumper cover, such as black, the above process is sufficient, but if both colors are painted, the process becomes more complicated.
又、モール等の装飾体を装着する場合は、第１
図(ヘ)及び（ヲ）のマスキング処理工程を省き、
（ル）のキユアー工程の次に装飾体装着工程を加
えて、装飾体と着色塗膜とによるツートンカラー
バンパーカバーとするか、第１図のマスキング処
理工程はそのままにし、（ヲ）のマスキング除去
工程の次に装飾体装着工程を加えて、多色の塗膜
と装飾体とによる多色カラーバンパーカバーとす
ることができるが、製造上の容易さからは掛け離
れたものとなる。従つて、現在においては、黒色
等の無塗装のバンパーカバーに金属表面を有する
モールを、後加工で装着したものが使用されてい
るにすぎず、フアツシヨナブル面においては劣る
ものであつた。 In addition, when attaching decorations such as moldings, the first
Omitting the masking process in Figures (F) and (W),
Either add a decoration installation process to the cure process in (l) to create a two-tone bumper cover with a decoration and a colored coating, or leave the masking process in Figure 1 as is and remove the masking in (w). Although it is possible to add a process of attaching a decorative body to the next step, it is possible to obtain a multicolored bumper cover with a multicolored paint film and a decorative body, but this is far from easy to manufacture. Therefore, at present, only unpainted bumper covers such as black are used with moldings having a metal surface attached as post-processing, and are inferior in terms of fashionability.
このように、従来の製造方法によつては非常に
多くの工程を必要とし、改良が求められていた。 As described above, conventional manufacturing methods require an extremely large number of steps, and improvements have been sought.
本発明は、前記の問題点を除去するためになさ
れたもので、合理的な、装飾体を有するカラーバ
ンパーカバーの製造方法を提供するものである。 The present invention was made in order to eliminate the above-mentioned problems, and provides a rational method for manufacturing a color bumper cover having a decorative body.
以下添付図面を用いて本発明を説明する。 The present invention will be explained below using the accompanying drawings.
第２図乃至第４図は本発明の実施に用いられる
成形用型一実施例を示すものである。 FIGS. 2 to 4 show an embodiment of a mold used for carrying out the present invention.
第２図は成形用型の正面断面図、第３図は成形
用型の下型の平面図、第４図は下型斜視図であ
る。 FIG. 2 is a front sectional view of the mold, FIG. 3 is a plan view of the lower mold of the mold, and FIG. 4 is a perspective view of the lower mold.
成形用型１は、上型２及び下型３よりなり、上
型２にはポリウレタン原料注入口４が設けられ、
成形用型内には、上型２及び下型３によりキヤビ
テイ５が形成され、下型３の内面には後述するマ
スキング治具及び装飾体配置のための嵌合部６が
形成される。この嵌合部６は、中央部の突起６
ａ、小突起６ｂ、溝６ｃよりなり、溝６ｃは、小
突起６ｂが中央部の突起６の周囲に、突起６ａよ
り所定間隔離れて設けられることにより形成され
る。 The molding mold 1 consists of an upper mold 2 and a lower mold 3, and the upper mold 2 is provided with a polyurethane raw material injection port 4,
A cavity 5 is formed in the mold by an upper mold 2 and a lower mold 3, and a fitting part 6 for arranging a masking jig and a decorative object, which will be described later, is formed on the inner surface of the lower mold 3. This fitting part 6 has a central protrusion 6
a, a small protrusion 6b, and a groove 6c, and the groove 6c is formed by providing the small protrusion 6b around the central protrusion 6 at a predetermined distance from the protrusion 6a.
注入口４は、ポリウレタン原料の流れを考慮し
て位置が決められるもので、図示したものに限定
されない。 The injection port 4 is positioned in consideration of the flow of the polyurethane raw material, and is not limited to what is shown in the drawings.
第５図及び第６図は、前記下型３に形成された
嵌合部６に配置されるマスキング治具一実施例を
示し、第５図は斜視図、第６図は第５図中の切断
線―線に沿つて切断した断面図である。 5 and 6 show an embodiment of the masking jig disposed in the fitting part 6 formed in the lower mold 3, FIG. 5 is a perspective view, and FIG. FIG. 3 is a cross-sectional view taken along a cutting line.
マスキング治具７は金属又は合成樹脂よりな
り、下部に、前記下型３の嵌合部６の溝６ｃと嵌
合する突起７ｃが形成されてなる。なお、突起７
ｃは、マスキング治具７の端部より幾分内側に形
成されるのが好ましい。 The masking jig 7 is made of metal or synthetic resin, and has a protrusion 7c formed at its lower part to fit into the groove 6c of the fitting part 6 of the lower mold 3. In addition, the protrusion 7
It is preferable that c is formed somewhat inside the end of the masking jig 7.
第７図及び第８図は、前記のマスキング治具を
除去した後に、前記の嵌合部６に配置される装飾
体一実施例を示し、第７図は斜視図、第８図は第
７図中の切断線―線に沿つて切断した断面図
である。 7 and 8 show an embodiment of the decorative body placed in the fitting part 6 after removing the masking jig, FIG. 7 is a perspective view, and FIG. FIG. 3 is a cross-sectional view taken along the cutting line--line in the figure.
装飾体８は、合成樹脂よりなり、下部に前記の
嵌合部６の溝６ｃに嵌合する突起８ｃが、装飾体
８の端部より幾分内側になるように形成され、更
に、装飾体端部には結合用穴８ｄが明けられる。
この結合用穴８ｄに代えて、装飾体端部をふくら
んだ形状、たとえば断面形状を三角形、円形等と
したり、あるいは波形状とする場合もある。 The decorative body 8 is made of synthetic resin, and a projection 8c that fits into the groove 6c of the fitting portion 6 is formed on the lower part thereof so as to be somewhat inside the end of the decorative body 8. A coupling hole 8d is formed at the end.
Instead of this coupling hole 8d, the end of the decorative body may have a bulging shape, for example, the cross-sectional shape may be triangular, circular, etc., or it may be wavy.
装飾体は好みの色とされ、更には、表面が金属
調とされる場合もある。 The decorative body can be of any color and may even have a metallic surface.
第９図及び第１０図は、本発明である製造方法
を説明する製造工程図で、第９図は工程名称によ
り、第１０図は断面により示したものである。 9 and 10 are manufacturing process diagrams for explaining the manufacturing method of the present invention, with FIG. 9 showing process names and FIG. 10 showing a cross section.
以下、これらの図に示した符号に従い詳述す
る。 Hereinafter, detailed description will be made according to the symbols shown in these figures.
(イ) マスキング治具の配置
成形用型の下型３内面及びマスキング治具７
に離型剤を塗布した後に、下型３に形成された
嵌合部６にマスキング治具７を配置する。(b) Arrangement of masking jig The inner surface of the lower die 3 of the mold and the masking jig 7
After applying a mold release agent to the lower mold 3, a masking jig 7 is placed in the fitting portion 6 formed in the lower mold 3.
この時、マスキング治具端部嵌合部６の小突
起６ｂとの間には間隙ａが形成される。 At this time, a gap a is formed between the masking jig end fitting part 6 and the small protrusion 6b.
(ロ) クリアー塗装
マスキング治具を配置した状態で、クリアー
塗料を下型３内面に塗布し、クリアー塗膜９を
形成する。(b) Clear coating With the masking jig in place, clear paint is applied to the inner surface of the lower mold 3 to form a clear coating film 9.
このクリアー塗装は、次に行なわれる着色塗
装がメタリツク系よりなる場合に必要とされ、
メタリツク系ではない場合は、省略される。 This clear coating is required when the next colored coating is made of a metallic type.
If the type is not metallic, it will be omitted.
(ハ) 着色塗装
クリアー塗膜の上に着色塗料を塗布して着色
塗膜を形成し、クリアー塗膜と着色塗膜とが一
体となつた塗膜１０を形成する。(c) Colored coating A colored coating is applied on the clear coating to form a colored coating, thereby forming the coating 10 in which the clear coating and the colored coating are integrated.
(イ)の工程で記したように、マスキング治具端
部と、下型３の嵌合部６の小突起６ｂとの間に
は、間隙ａを有するために、クリアー塗装及び
着色塗装時にマスキング治具端部が邪魔にな
り、塗斜が間隙ａの奥部まで到達しないで、塗
膜１０は、この間隙ａにおいて切断された状
態、すなわち、マスキング治具に形成された塗
膜と、下型内面に形成された塗膜とは分離した
状態となる。 As mentioned in step (a), there is a gap a between the end of the masking jig and the small protrusion 6b of the fitting part 6 of the lower mold 3, so masking is not necessary during clear painting and coloring. The end of the jig gets in the way, and the coating slant does not reach the deep part of the gap a, and the coating film 10 is cut in the gap a, that is, the coating film formed on the masking jig and the bottom are separated. It becomes separated from the coating film formed on the inner surface of the mold.
なお、クリアー塗料及び着色塗料とを一般に
塗料と総称し、(ロ)と(ハ)の工程は塗装工程と称さ
れる。又、塗料は、ウレタン系が好ましい。 Note that the clear paint and the colored paint are generally referred to as paint, and the steps (B) and (C) are referred to as the painting process. Moreover, the paint is preferably urethane-based.
(ニ) マスキング治具の除去
マスキング治具の除去により、下型内面に、
塗膜を有しない嵌合部６の中央部を得る。(d) Removal of the masking jig By removing the masking jig, there are
A central portion of the fitting portion 6 without a coating film is obtained.
(ホ) 装飾体の配置 装飾体８を下型３の嵌合部６に配置する。(e) Arrangement of decorations The decorative body 8 is placed in the fitting part 6 of the lower mold 3.
(ヘ) 閉型
上型２により成形用型を閉じ、キヤビテイ５
を形成する。(f) Closed mold Close the molding mold with the upper mold 2, and close the mold with the cavity 5.
form.
(ト) 成形用型内に注入
注入口４よりキヤビテイ内にポリウレタン原
料ｂが注入される。ポリウレタン原料はRIM
成形用配合とされる。(g) Injection into the mold The polyurethane raw material b is injected into the cavity from the injection port 4. Polyurethane raw material is RIM
It is considered to be a molding compound.
(チ) 脱型
所定時間経過し、ポリウレタン原料が硬化
し、所定形状のポリウレタン１１を形成した後
脱型する。(h) Demolding After a predetermined period of time has elapsed, the polyurethane raw material is cured and polyurethane 11 of a predetermined shape is formed, and then the mold is demolded.
装飾体８は、端部に形成された結合用穴８ｄ内
をポリウレタン原料が満たして硬化することによ
つて、ポリウレタン１１に確実に結合される。
又、この結合用穴８ｄの代わりに、装飾体端部形
状がふくらんだ形あるいは波形とされた場合も、
結合力を増加させる効果を有する。 The decorative body 8 is reliably bonded to the polyurethane 11 by filling the bonding hole 8d formed at the end with the polyurethane raw material and curing it.
Also, if the shape of the end of the decorative body is bulged or waved instead of the coupling hole 8d,
It has the effect of increasing bonding strength.
この後、必要に応じてバリ加工が行なわれ、最
終製品を得る。 After this, burr processing is performed as necessary to obtain a final product.
第１１図は、このようにして製造された、装飾
体を有するカラーバンパーカバーの一実施例斜視
図で、装飾体８と塗膜１０の部分とは異なつた色
とされ、一種のツートンカラーとなり、大変美麗
となる。又、装飾体８として、表面を金属調とし
たもの、あるいは梨地模様としたものも使用で
き、美感変化の自由度も大きいものである。 FIG. 11 is a perspective view of an embodiment of a colored bumper cover having a decorative body manufactured in this manner, in which the decorative body 8 and the coating film 10 are of different colors, resulting in a kind of two-tone color. , it becomes very beautiful. Further, as the decorative body 8, one with a metallic surface or a satin pattern can be used, and there is a great degree of freedom in changing the aesthetic appearance.
第１２図は、装飾体を有するカラーバンパーカ
バーの他実施例斜視図で、１２は装飾体、１３は
塗膜を示す。 FIG. 12 is a perspective view of another embodiment of a color bumper cover having a decorative body, where 12 represents a decorative body and 13 represents a coating film.
このように、本発明の実施により製造された、
装飾体を有するカラーバンパーカバーは、装飾体
と塗膜によりツートンカラーを構成するもので、
装飾体として異種材質を使用することができるた
めに、従来の塗膜のみによる単調な色の変化に比
べ、材質の相違により生ずる複雑な色彩変化を得
ることができる。 Thus, produced by the practice of the present invention,
A colored bumper cover with a decorative body has a two-tone color with the decorative body and the coating.
Since different materials can be used as the decoration, complex color changes caused by different materials can be obtained, compared to monotonous color changes caused by conventional coatings alone.
次に本発明である製造方法が、先に示した従来
のツートンカラーバンパーカバーの製造方法と比
較して、大幅に簡略化されたものであることを記
す。 Next, it will be described that the manufacturing method of the present invention is significantly simplified compared to the conventional two-tone bumper cover manufacturing method described above.
本発明によれば、装飾体の配置工程及び、これ
に先立つ装飾体の製造工程が必要となるが、従来
のマスキング処理工程が複雑であつたのに対し、
本発明におけるマスキング治具の配置及び除去工
程が極めて容易であるために、これらの工程のみ
を比較すれば、ほとんど同じか、わずかに複雑に
なるのみである。 According to the present invention, a process of arranging the decorative body and a process of manufacturing the decorative body prior to this are necessary, whereas the conventional masking process was complicated.
Since the process of placing and removing the masking jig in the present invention is extremely easy, if only these processes are compared, they are almost the same or only slightly more complex.
しかし、従来のマスキング処理工程に代わるこ
れらの処理工程により、従来必要とされた洗浄工
程、プライマー処理工程、各段階におけるキユア
ー工程が不必要となり、全体において大幅な簡略
化が可能となつた。 However, by replacing the conventional masking process with these processes, the conventionally required cleaning process, primer treatment process, and curing process at each stage are no longer necessary, making it possible to significantly simplify the entire process.
このような大幅な簡略化が可能となつた理由を
次に記す。 The reason why such drastic simplification was possible is described below.
まず、従来、洗浄工程が必要とされたのは、成
形用型内でバンパーカバーを成形した後に、表面
を塗装するために、バンパーカバー表面に付着し
た離型剤等の油脂類を除去する必要があつたから
であるが、本発明にあつては、塗膜とポリウレタ
ンとの間に離型剤が介在することが無いので、こ
の洗浄工程が不要となり、溶剤揮発のキユアー工
程も同時に不要となる。 First of all, in the past, a cleaning process was required because after the bumper cover was molded in a mold, in order to paint the surface, it was necessary to remove oils and fats such as mold release agents that had adhered to the bumper cover surface. However, in the present invention, since there is no mold release agent interposed between the coating film and the polyurethane, this cleaning step is not necessary, and the curing step of solvent volatilization is also not required. .
又、従来にあつては、成形用型内で成形された
バンパーカバーに後工程で塗装を行なうために、
塗膜は、バンパーカバーの表面状態に順応した表
面となり、従つて、塗装前に、バンパーカバー表
面のピンホール等の凹凸を埋め平滑にする必要が
あつた。更に、塗膜とバンパーカバーの接着は、
従来にあつては塗料の接着性のみによつてなされ
るために、剥離強度が不十分であつた。これらの
点より、バンパーカバーの表面を平滑にし、塗膜
とバンパーカバーの接着性を高めるためのプライ
マー処理が必要とされた。 In addition, in the past, in order to paint the bumper cover formed in the mold in a post-process,
The coating film has a surface that conforms to the surface condition of the bumper cover, and therefore, it was necessary to fill in and smooth out irregularities such as pinholes on the bumper cover surface before painting. Furthermore, the adhesion between the paint film and bumper cover is
In the past, peel strength was insufficient because this was achieved only by the adhesiveness of the paint. From these points, a primer treatment was required to smooth the surface of the bumper cover and improve the adhesion between the paint film and the bumper cover.
しかし、本発明にあつては、塗膜は、平滑な下
型内面に形成されるために、塗膜表面は平滑にな
り、更に、塗膜とポリウレタンとの接着は、ポリ
ウレタン原料の反応時の接着性、及び、オーバー
パツク気味に注入されたポリウレタン原料の圧力
によつて強力になされ、よつてプライマー処理は
不要となる。 However, in the present invention, since the coating film is formed on the smooth inner surface of the lower mold, the coating film surface becomes smooth, and furthermore, the adhesion between the coating film and polyurethane is caused by the reaction of the polyurethane raw materials. The adhesiveness and the pressure of the polyurethane raw material injected with a slight overpack make it strong, so priming is not necessary.
更に塗膜のキユアーも、ポリウレタン原料の反
応熱によつてなされるために、キユアー工程が不
要となる。 Furthermore, since the coating film is cured by the reaction heat of the polyurethane raw material, a curing step is not necessary.
以上のように、本発明の製造方法は、従来の製
造方法に比較して大変合理的なものである。 As described above, the manufacturing method of the present invention is very rational compared to conventional manufacturing methods.
第１図は、従来のツートンカラーバンパーカバ
ーの製造工程図、第２図乃至第１０図は本発明の
製造方法に関する図で、第２図は成形用型の正面
断面図、第３図は成形用型の下型平面図、第４図
は成形用型の下型斜視図、第５図はマスキング治
具一実施例斜視図、第６図は第５図の切断線−
線に沿つて切断した断面図、第７図は装飾体−
実施例斜視図、第８図は第７図の切断線−線
に沿つて切断した断面図、第９図及び第１０図は
製造工程図、第１１図は本発明の実施により製造
された、装飾体を有するカラーバンパー一実施例
斜視図、第１２図は装飾体を有するカラーバンパ
ーカバー他実施例斜視図である。
１……成形用型、２……上型、３……下型、４
……注入口、５……キヤビテイ、６……嵌合部、
６ａ……中央部突起、６ｂ……小突起、６ｃ……
溝、７……マスキング治具、７ｃ……突起、８…
…装飾体、８ｃ……突起、８ｄ……結合用穴、９
……クリアー塗膜、１０……塗膜、１１……ポリ
ウレタン、１２……装飾体、１３……塗膜、ａ…
…間隙、ｂ……ポリウレタン原料。
Figure 1 is a manufacturing process diagram of a conventional two-tone bumper cover, Figures 2 to 10 are diagrams related to the manufacturing method of the present invention, Figure 2 is a front sectional view of a mold, and Figure 3 is a molding process. FIG. 4 is a perspective view of the lower mold of the mold, FIG. 5 is a perspective view of an embodiment of the masking jig, and FIG. 6 is a cutting line of FIG. 5.
A sectional view taken along the line, Figure 7 shows the decorative body.
Embodiment perspective view, FIG. 8 is a sectional view taken along the cutting line--line in FIG. 7, FIGS. 9 and 10 are manufacturing process diagrams, and FIG. 11 is a product manufactured by implementing the present invention. FIG. 12 is a perspective view of one embodiment of a color bumper having a decorative body, and FIG. 12 is a perspective view of another embodiment of a color bumper cover having a decorative body. 1... Molding mold, 2... Upper mold, 3... Lower mold, 4
... Inlet, 5 ... Cavity, 6 ... Fitting part,
6a...Central protrusion, 6b...Small protrusion, 6c...
Groove, 7... Masking jig, 7c... Protrusion, 8...
...Decoration body, 8c...Protrusion, 8d...Connecting hole, 9
... Clear coating film, 10... Paint film, 11... Polyurethane, 12... Decorative body, 13... Paint film, a...
...Gap, b...Polyurethane raw material.
Claims (1)
グ治具を配置する。 (ロ) 下型内面に塗料を塗布する。 (ハ) マスキング治具を除去する。 (ニ) 所定形状の装飾体を、マスキングされた部分
に配置する。 (ホ) 成形用型の上型により成形用型を閉じる。 (ヘ) ポリウレタン原料を成形用型内に注入する。 (ト) 所定時間経過後脱型する。 以上の工程よりなる、装飾体を有するカラーバ
ンパーカバーの製造方法。[Claims] 1. (a) A masking jig is placed at a predetermined position on the inner surface of the lower mold of the mold. (b) Apply paint to the inner surface of the lower mold. (c) Remove the masking jig. (d) Place a decorative body of a predetermined shape on the masked part. (e) Close the mold with the upper mold of the mold. (f) Inject the polyurethane raw material into the mold. (g) Remove from the mold after a predetermined period of time. A method for manufacturing a color bumper cover having a decorative body, which comprises the above steps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57182651A JPS5971838A (en) | 1982-10-18 | 1982-10-18 | Manufacture of color bumper cover with decoration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57182651A JPS5971838A (en) | 1982-10-18 | 1982-10-18 | Manufacture of color bumper cover with decoration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5971838A JPS5971838A (en) | 1984-04-23 |
| JPH031138B2 true JPH031138B2 (en) | 1991-01-09 |
Family
ID=16122034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57182651A Granted JPS5971838A (en) | 1982-10-18 | 1982-10-18 | Manufacture of color bumper cover with decoration |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5971838A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61274911A (en) * | 1985-05-31 | 1986-12-05 | Toyota Auto Body Co Ltd | Preparation of skin integrated resin molded product |
| JP5519950B2 (en) * | 2009-03-30 | 2014-06-11 | 日産自動車株式会社 | Application method of coating material |
| KR101096060B1 (en) | 2009-07-02 | 2011-12-19 | 유용구 | Seethrough window forming method on glass ware |
| CN103624919A (en) * | 2012-08-24 | 2014-03-12 | 纬创资通股份有限公司 | Manufacturing method of shell and shell for portable electronic device |
| JP6031141B2 (en) * | 2015-03-02 | 2016-11-24 | 株式会社ユニバーサルエンターテインメント | Manufacturing method for gaming machine parts |
-
1982
- 1982-10-18 JP JP57182651A patent/JPS5971838A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5971838A (en) | 1984-04-23 |
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