JPH04246534A - Exterior resin product for automobile and its manufacture - Google Patents
Exterior resin product for automobile and its manufactureInfo
- Publication number
- JPH04246534A JPH04246534A JP1114391A JP1114391A JPH04246534A JP H04246534 A JPH04246534 A JP H04246534A JP 1114391 A JP1114391 A JP 1114391A JP 1114391 A JP1114391 A JP 1114391A JP H04246534 A JPH04246534 A JP H04246534A
- Authority
- JP
- Japan
- Prior art keywords
- skin layer
- core layer
- side spoiler
- layer
- shape
- 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.)
- Granted
Links
- 229920005989 resin Polymers 0.000 title claims abstract description 20
- 239000011347 resin Substances 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 239000010410 layer Substances 0.000 claims abstract description 38
- 239000012792 core layer Substances 0.000 claims abstract description 36
- 239000007779 soft material Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 abstract description 30
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 abstract description 14
- 239000004575 stone Substances 0.000 abstract description 8
- 229920001155 polypropylene Polymers 0.000 abstract description 6
- -1 polypropylene Polymers 0.000 abstract description 2
- 210000003491 skin Anatomy 0.000 description 30
- 238000000465 moulding Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 229920006026 co-polymeric resin Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000002615 epidermis Anatomy 0.000 description 2
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 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
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1642—Making multilayered or multicoloured articles having a "sandwich" structure
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Laminated Bodies (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、自動車の両サイド下部
に装着されるサイドスポイラー等の自動車用外装樹脂製
品及びその製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to exterior resin products for automobiles, such as side spoilers, which are attached to the lower parts of both sides of an automobile, and a method for manufacturing the same.
【０００２】0002
【従来の技術】従来、サイドスポイラー等の自動車用外
装樹脂製品は、ポリプロピレン（以下ＰＰという）等の
硬質材によって形成されている。そして、このＰＰが一
定の硬度を有しているので、サイドスポイラーは自動車
の走行時のエアの流れを調整する機能を発揮する。この
サイドスポイラーは、通常の射出成形法に基づいて、金
型内の成形品形状を有するキャビティ内に溶融したＰＰ
を射出し、冷却固化することによって製造されている。2. Description of the Related Art Conventionally, exterior resin products for automobiles such as side spoilers have been made of hard materials such as polypropylene (hereinafter referred to as PP). Since this PP has a certain hardness, the side spoiler functions to adjust the air flow when the vehicle is running. This side spoiler is made of molten PP in a cavity that has the shape of a molded product in a mold based on the normal injection molding method.
It is manufactured by injecting and cooling and solidifying.
【０００３】0003
【発明が解決しようとする課題】ところが、サイドスポ
イラーは外装品であるため、走行中に石等が飛んできて
当たる場合がある。その場合、サイドスポイラーが硬い
ＰＰのみで形成されているため、衝撃により高い響く音
がして不快な感じを与えるという問題点があった。また
、サイドスポイラーの石が当たった部分は、硬いＰＰで
形成され石の衝撃を吸収できないため、その表面に傷が
ついてしまうという問題点があった。[Problems to be Solved by the Invention] However, since the side spoiler is an exterior item, it may be hit by flying stones or the like while driving. In this case, since the side spoiler is made only of hard PP, there is a problem in that it produces a high pitched sound upon impact, giving an unpleasant feeling. In addition, the part of the side spoiler that is hit by the stone is made of hard PP and cannot absorb the impact of the stone, resulting in scratches on its surface.
【０００４】本発明は上記問題点を解消するためになさ
れたものであって、その目的は、衝撃により高く響く音
をなくして不快感を与えることなく、しかも表面の傷付
きを防止できる自動車用外装樹脂製品及びその製造方法
を提供することにある。The present invention has been made to solve the above-mentioned problems, and its purpose is to provide a vehicle for use in automobiles that eliminates high-pitched sounds caused by impact, does not cause discomfort, and prevents scratches on the surface of the vehicle. The purpose of the present invention is to provide an exterior resin product and a method for manufacturing the same.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明の第１の発明では硬質材よりなる表皮層と、
同表皮層内に埋設された軟質材よりなるコア層とからサ
ンドイッチ状に形成された自動車用外装樹脂製品をその
要旨としている。また、第２の発明では、金型の成形品
形状を有するキャビティ内に、第１の発明の表皮層を形
成する硬質材を射出した後、コア層を形成する軟質材を
射出し、軟質材が硬質材を押圧しながら表皮層内にコア
層を形成し、表皮層とコア層とをサンドイッチ状に成形
する自動車用外装樹脂製品の製造方法をその要旨として
いる。[Means for Solving the Problems] In order to achieve the above object, in the first aspect of the present invention, a skin layer made of a hard material,
The gist of this product is an exterior resin product for automobiles that is formed in a sandwich shape with a core layer made of a soft material embedded within the same skin layer. Further, in the second invention, the hard material forming the skin layer of the first invention is injected into the cavity having the shape of the molded product of the mold, and then the soft material forming the core layer is injected. The gist of this method is to form a core layer within the skin layer while pressing a hard material, and to form the skin layer and core layer into a sandwich shape.
【０００６】[0006]
【作用】第１の発明では、自動車用外装樹脂製品の表皮
層の表面に石等が当たった場合、そこで発せられる音は
、表皮層内に異質の材料である軟質材からなるコア層が
形成されているので、音の共鳴が抑えられ、響かない音
となる。また、石等によって表皮層の表面に加えられた
力は、その一部が表皮層を介してコア層の軟質材に吸収
されるため、表皮層の表面の傷付きが抑えられる。[Operation] In the first invention, when a stone or the like hits the surface of the skin layer of an automotive exterior resin product, the sound emitted is caused by the formation of a core layer made of a soft material that is a different material within the skin layer. Because of this, the resonance of the sound is suppressed and the sound does not resonate. In addition, a portion of the force applied to the surface of the skin layer by a stone or the like is absorbed by the soft material of the core layer through the skin layer, thereby suppressing damage to the surface of the skin layer.
【０００７】第２の発明では、金型の成形品形状を有す
るキャビティ内に、前記表皮層を形成する硬質材を射出
した後、コア層を形成する軟質材を射出する。すると、
軟質材が先に射出された硬質材を順に外周側へ押圧して
表皮層内にコア層が形成され、表皮層とコア層とがサン
ドイッチ状に成形された自動車用外装樹脂製品が製造さ
れる。In the second invention, after the hard material forming the skin layer is injected into the cavity of the mold having the shape of a molded product, the soft material forming the core layer is injected. Then,
A core layer is formed within the skin layer by sequentially pressing the soft material injected first and the hard material toward the outer periphery, producing an automotive exterior resin product in which the skin layer and core layer are molded into a sandwich shape. .
【０００８】[0008]
【実施例】以下に本発明をサイドスポイラー及びその製
造方法に具体化した実施例について図１〜６に従って説
明する。図１に示すように、自動車用外装樹脂製品とし
てのサイドスポイラー１は外方（同図左手前側）へ膨ら
んだ湾曲形状を有する長尺状をなしている。このサイド
スポイラー１の外周部に形成された表皮層２はほぼ一定
の厚みを有しており、その内部にはコア層３が全体にほ
ぼ均一に埋設されている。これら表皮層２とコア層３と
が断面ではサンドイッチ状に形成され、全体としてはコ
ア層３が表皮層２を包み込むように形成されている。な
お、サイドスポイラー１の下部には、長さ方向に延びる
溝状の装飾凹部４が設けられている。[Embodiment] An embodiment in which the present invention is embodied in a side spoiler and a method for manufacturing the same will be described below with reference to FIGS. 1 to 6. As shown in FIG. 1, a side spoiler 1 as an exterior resin product for an automobile has an elongated shape with a curved shape that bulges outward (toward the left front side in the figure). A skin layer 2 formed on the outer periphery of the side spoiler 1 has a substantially constant thickness, and a core layer 3 is embedded therein almost uniformly throughout. These skin layer 2 and core layer 3 are formed in a sandwich shape in cross section, and the core layer 3 is formed so as to wrap around the skin layer 2 as a whole. Note that a groove-shaped decorative recess 4 extending in the length direction is provided at the lower part of the side spoiler 1.
【０００９】上記表皮層２は硬質材としてのＰＰから形
成されている。この表皮層２は一定の剛性を有し、形状
を保持するために、硬度が ＪＩＳ Ａ（ＪＩＳＫ−６
３０１）９０〜１００ の範囲の硬質材が好ましい。こ
の硬質材としては、ＰＰ以外にＰＰにガラス繊維、タル
ク等のフィラーを配合したものでもよく、またＡＢＳ樹
脂等を使用することもできる。The skin layer 2 is made of PP as a hard material. This skin layer 2 has a certain rigidity, and in order to maintain its shape, the hardness is JIS A (JISK-6
301) Hard materials in the range of 90 to 100 are preferred. As this hard material, other than PP, PP mixed with fillers such as glass fiber and talc may be used, and ABS resin and the like may also be used.
【００１０】前記コア層３は軟質材としてのスチレン−
エチレン−ブタジエン−スチレン共重合樹脂（ＳＥＢＳ
）から形成されている。このコア層３は吸音性能及び傷
付き防止性能の点から硬度が ＪＩＳＡ ４０〜８５の
範囲の軟質材で、かつコア層３との間で音が共鳴しない
ものが好ましい。この軟質材としては、上記ＳＥＢＳの
他ゴム変性ＰＰ、スチレン−ブタジエン−スチレン共重
合樹脂（ＳＢＳ）等を使用することができ、また発泡材
を使用してもよい。このコア層３の厚さは、吸音性能及
び傷付き防止性能の点からは、できるだけ厚い方が好適
である。上記硬質材と軟質材とは互いに相溶性があるこ
とが、表皮層２とコア層３との密着性を保持する点から
好ましい。The core layer 3 is made of styrene as a soft material.
Ethylene-butadiene-styrene copolymer resin (SEBS
) is formed from. This core layer 3 is preferably made of a soft material having a hardness in the range of JISA 40 to 85 from the viewpoint of sound absorption performance and scratch prevention performance, and that does not cause sound resonance with the core layer 3. As this soft material, in addition to the above-mentioned SEBS, rubber-modified PP, styrene-butadiene-styrene copolymer resin (SBS), etc. can be used, and a foamed material may also be used. The thickness of the core layer 3 is preferably as thick as possible in terms of sound absorption performance and scratch prevention performance. It is preferable that the hard material and the soft material are compatible with each other in order to maintain the adhesion between the skin layer 2 and the core layer 3.
【００１１】次に、サイドスポイラー１の車両ボディへ
の取付構造及び取付方法について説明する。図２に示す
ように、車両ボディ５に透設された取付孔６には、断面
ほぼ横Ω状に形成された取付部材７が支持固定されてい
る。一方、サイドスポイラー１の裏面（同図右面）には
、断面凹状に形成された支持突起８が突設され、その凹
部９には断面Ｔ字状で先端部に断面平行四辺形で伸縮可
能に形成された取付クリップ１０が係合されている。Next, the structure and method for attaching the side spoiler 1 to the vehicle body will be explained. As shown in FIG. 2, a mounting member 7 having a substantially transverse Ω-shape in cross section is supported and fixed in a mounting hole 6 formed through the vehicle body 5. On the other hand, on the back surface of the side spoiler 1 (the right side in the same figure), a support protrusion 8 formed with a concave cross section is provided protrudingly, and the concave part 9 has a T-shaped cross section and a parallelogram cross section at the tip, which is extendable and retractable. A formed mounting clip 10 is engaged.
【００１２】サイドスポイラー１の上下両端部には軟質
材で形成されたプロテクター１１が装着され、車両ボデ
ィ５の塗装面を傷付けないように保護している。そして
、上記取付クリップ１０の外周部にゴムパッキン１２を
外嵌し、取付クリップ１０を収縮させた状態で、取付ク
リップ１０の先端部を前記取付部材７内に押し込むよう
にする。すると、取付クリップ１０の先端部が取付部材
７内で拡張し、取付部材７内に密着して脱出不能となり
、サイドスポイラー１が車両ボディ５に取付けられる。Protectors 11 made of a soft material are attached to both upper and lower ends of the side spoiler 1 to protect the painted surface of the vehicle body 5 from being damaged. Then, a rubber packing 12 is fitted around the outer periphery of the mounting clip 10, and the tip of the mounting clip 10 is pushed into the mounting member 7 while the mounting clip 10 is contracted. Then, the distal end of the attachment clip 10 expands within the attachment member 7, becomes tightly attached to the attachment member 7, and cannot escape, and the side spoiler 1 is attached to the vehicle body 5.
【００１３】上記のようなサイドスポイラー１は、ＰＰ
からなる表皮層２内にそれとは異質の軟質材でＰＰとは
音の共鳴をしないＳＥＢＳからなるコア層３が形成され
ているので、サイドスポイラー１の表皮層２の表面に石
等が当たった場合、そこで発せられる音は、共鳴が抑え
られ、音の響きが少なくなる。従って、高い響く衝撃音
による不快感が解消され、安っぽい音がしなくなる。ま
た、石等によって表皮層２の表面に加えられた力は、そ
の一部が表皮層２を介してコア層３の軟質材であるＳＥ
ＢＳに吸収されるため、表皮層２の表面の傷付きが抑え
られる。なお、サイドスポイラー１の表皮層２は一定の
厚さを有する硬いＰＰで形成されているので、十分な剛
性を有し、車両走行時においてサイドスポイラー１とし
てのエアの整流機能が損なわれることはない。[0013] The side spoiler 1 as described above is made of PP
A core layer 3 made of SEBS, which is a soft material different from PP and does not resonate with sound from PP, is formed within the skin layer 2 made of PP. In this case, the resonance of the sound emitted there is suppressed and the sound becomes less resonant. Therefore, the discomfort caused by the high-pitched impact sound is eliminated, and the cheap sound is no longer produced. In addition, a part of the force applied to the surface of the skin layer 2 by stones, etc. passes through the skin layer 2 to the soft material SE of the core layer 3.
Since it is absorbed by BS, damage to the surface of the epidermal layer 2 is suppressed. The skin layer 2 of the side spoiler 1 is made of hard PP with a certain thickness, so it has sufficient rigidity and the air rectification function of the side spoiler 1 will not be impaired when the vehicle is running. do not have.
【００１４】次に、このサイドスポイラー１のサンドイ
ッチ成形法による製造方法について説明する。サンドイ
ッチ成形法とは、二種類の樹脂を射出成形法によって表
皮層とコア層とに分けてサンドイッチ状に成形する方法
をいう。図３に示すように、図中下側の固定型１３と上
側の可動型１４とでサイドスポイラー１の形状をなすキ
ャビティ１５が形成されている。同キャビティ１５の一
端（図中左端）には、キャビティ１５内に溶融樹脂を射
出するためのゲート１６が開口されている。さて、図４
に示すように、このゲート１６からまず第１に表皮層２
を形成する溶融したＰＰをキャビティ１５内ヘ射出する
。このＰＰの射出量はサイドスポイラー１の表皮層２を
形成するに足る量である。Next, a method for manufacturing the side spoiler 1 using a sandwich molding method will be explained. The sandwich molding method refers to a method in which two types of resin are molded into a sandwich shape by dividing them into a skin layer and a core layer by injection molding. As shown in FIG. 3, a cavity 15 having the shape of the side spoiler 1 is formed by a fixed mold 13 on the lower side in the figure and a movable mold 14 on the upper side. A gate 16 for injecting molten resin into the cavity 15 is opened at one end (left end in the figure) of the cavity 15 . Now, Figure 4
As shown in FIG.
The molten PP forming the PP is injected into the cavity 15. This injection amount of PP is sufficient to form the skin layer 2 of the side spoiler 1.
【００１５】図５に示すように、このＰＰを一定量射出
した後、コア層３を形成する溶融したＳＥＢＳを同じく
ゲート１６からキャビティ１５内ヘ射出する。すると、
このＳＥＢＳは流動抵抗の少ない中央部をＰＰを押しな
がら流れ、ＰＰはＳＥＢＳに押されて外周部を流動する
。外周部のＰＰは固定型１３又は可動型１４によって冷
却され、固化する。なお、前記ＰＰの射出量を少なく設
定し、その後さらにＰＰを追加して射出してもよい。As shown in FIG. 5, after a certain amount of this PP is injected, molten SEBS forming the core layer 3 is similarly injected into the cavity 15 from the gate 16. Then,
The SEBS flows through the central portion where there is less flow resistance while pushing the PP, and the PP flows through the outer peripheral portion being pushed by the SEBS. The PP on the outer periphery is cooled and solidified by the fixed mold 13 or the movable mold 14. Note that the injection amount of the PP may be set to be small, and then PP may be further added and injected.
【００１６】図６に示すように、ＳＥＢＳを所定量射出
した後に射出を終了すると、ＳＥＢＳはキャビティ１５
の先端部（同図右端部）近傍位置まで達する。ＳＥＢＳ
の射出完了後、そのまま所定時間放置して成形品を冷却
固化する。次いで、可動型１４を固定型１３から離間す
るように移動させて型開きする。そして、成形品である
サイドスポイラー１をキャビティ１５から取り出す。こ
のようにして、ＰＰによる表皮層２の内部にＳＥＢＳに
よるコア層３がサイドスポイラー１内に一定の厚さをも
って全体にほぼ均一に埋設され、表皮層２とコア層３と
がサンドイッチ状に成形される。As shown in FIG. 6, when the injection is finished after a predetermined amount of SEBS has been injected, the SEBS is injected into the cavity 15.
It reaches a position near the tip (right end in the figure). SEBS
After the injection is completed, the molded product is allowed to stand for a predetermined period of time to cool and solidify. Next, the movable mold 14 is moved away from the fixed mold 13 to open the mold. Then, the side spoiler 1, which is a molded product, is taken out from the cavity 15. In this way, the core layer 3 made of SEBS is buried inside the skin layer 2 made of PP, and the core layer 3 made of SEBS is buried almost uniformly throughout the side spoiler 1 with a constant thickness, and the skin layer 2 and the core layer 3 are formed into a sandwich shape. be done.
【００１７】このように本実施例のサンドイッチ成形法
によるサイドスポイラー１の製造方法によれば、表皮層
２内にコア層３が一定の厚さに埋設され、表皮層２とコ
ア層３とがサンドイッチ状に形成されたサイドスポイラ
ー１が従来の射出成形法と同様にして容易に製造される
。本発明は上記実施例に限定されるものではなく、例え
ばホイールハウス内面に装着されるホイールハウスイン
ナーカバー、サイドスポイラーより小さい形状のロッカ
ーモール、エンジンアンダーカバー、ラジエータアンダ
ーカバー等のアンダーカバー等及びそれらの製造方法に
具体化してもよい。As described above, according to the manufacturing method of the side spoiler 1 by the sandwich molding method of this embodiment, the core layer 3 is embedded in the skin layer 2 to a constant thickness, and the skin layer 2 and the core layer 3 are A sandwich-shaped side spoiler 1 is easily manufactured using a conventional injection molding method. The present invention is not limited to the above embodiments, and includes, for example, a wheel house inner cover attached to the inner surface of the wheel house, a rocker molding smaller than a side spoiler, an engine under cover, a radiator under cover, and other under covers. It may be embodied in the manufacturing method.
【００１８】[0018]
【発明の効果】本発明の第１の発明の自動車用外装樹脂
製品は、石等が飛んできて当たっても高い響く音がする
ことなく、従って不快感が解消され、しかも表面の傷付
きを緩和することができるという効果を奏する。また、
第２の発明によれば、吸音性能及び傷付き防止性能が発
揮される自動車用外装樹脂製品がサンドイッチ成形法に
よって容易に製造できるという効果を奏する。[Effects of the Invention] The exterior resin product for automobiles according to the first aspect of the present invention does not make a high-pitched, resonant sound even when a flying stone or the like hits it, thereby eliminating discomfort and preventing scratches on the surface. It has the effect of being able to provide relief. Also,
According to the second invention, an automobile exterior resin product exhibiting sound absorption performance and scratch prevention performance can be easily produced by a sandwich molding method.
【図１】本発明の実施例を示すサイドスポイラーの斜視
図である。FIG. 1 is a perspective view of a side spoiler showing an embodiment of the present invention.
【図２】サイドスポイラーを車両ボディに取付けた状態
を示す断面図である。FIG. 2 is a sectional view showing a side spoiler attached to a vehicle body.
【図３】サンドイッチ成形用の金型を示す断面図である
。FIG. 3 is a sectional view showing a mold for sandwich molding.
【図４】金型のキャビティ内に表皮層を形成する樹脂を
射出した状態を示す断面図である。FIG. 4 is a cross-sectional view showing a state in which resin forming a skin layer is injected into the cavity of the mold.
【図５】図４の状態からコア層を形成する樹脂を射出し
た状態を示す断面図である。5 is a sectional view showing a state in which resin forming a core layer is injected from the state shown in FIG. 4; FIG.
【図６】図５の状態からさらにコア層を形成する樹脂を
射出した状態を示す断面図である。6 is a sectional view showing a state in which resin forming a core layer is further injected from the state in FIG. 5; FIG.
１…自動車用外装樹脂製品としてのサイドスポイラー、
２…表皮層、３…コア層、１５…キャビティ。1...Side spoiler as an exterior resin product for automobiles,
2... Epidermal layer, 3... Core layer, 15... Cavity.
Claims (2)
皮層（２）内に埋設された軟質材よりなるコア層（３）
とからサンドイッチ状に形成された自動車用外装樹脂製
品。[Claim 1] A skin layer (2) made of a hard material, and a core layer (3) made of a soft material embedded in the skin layer (2).
An automotive exterior resin product formed into a sandwich shape.
（１５）内に、請求項１の表皮層（２）を形成する硬質
材を射出した後、コア層（３）を形成する軟質材を射出
し、軟質材が硬質材を押圧しながら表皮層（２）内にコ
ア層（３）を形成し、表皮層（２）とコア層（３）とを
サンドイッチ状に成形することを特徴とする自動車用外
装樹脂製品の製造方法。2. After injecting the hard material forming the skin layer (2) of claim 1 into the cavity (15) having the shape of a molded product of the mold, the soft material forming the core layer (3) is injected. The core layer (3) is formed within the skin layer (2) by injection, with the soft material pressing against the hard material, and the skin layer (2) and the core layer (3) are formed into a sandwich shape. A method for manufacturing exterior resin products for automobiles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1114391A JP3052386B2 (en) | 1991-01-31 | 1991-01-31 | Automotive exterior resin product and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1114391A JP3052386B2 (en) | 1991-01-31 | 1991-01-31 | Automotive exterior resin product and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04246534A true JPH04246534A (en) | 1992-09-02 |
| JP3052386B2 JP3052386B2 (en) | 2000-06-12 |
Family
ID=11769802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1114391A Expired - Fee Related JP3052386B2 (en) | 1991-01-31 | 1991-01-31 | Automotive exterior resin product and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3052386B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015051602A (en) * | 2013-09-09 | 2015-03-19 | ダイハツ工業株式会社 | Injection molding method and molded product |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI114071B (en) | 2003-01-13 | 2004-07-30 | Nokia Corp | Processing images with a limited number of pieces |
-
1991
- 1991-01-31 JP JP1114391A patent/JP3052386B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015051602A (en) * | 2013-09-09 | 2015-03-19 | ダイハツ工業株式会社 | Injection molding method and molded product |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3052386B2 (en) | 2000-06-12 |
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