JPS61275042A - Synthetic resin molding and manufacture thereof - Google Patents

Synthetic resin molding and manufacture thereof

Info

Publication number
JPS61275042A
JPS61275042A JP11798085A JP11798085A JPS61275042A JP S61275042 A JPS61275042 A JP S61275042A JP 11798085 A JP11798085 A JP 11798085A JP 11798085 A JP11798085 A JP 11798085A JP S61275042 A JPS61275042 A JP S61275042A
Authority
JP
Japan
Prior art keywords
resin layer
foamed resin
molding
molded product
back side
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
Application number
JP11798085A
Other languages
Japanese (ja)
Inventor
Makoto Fujisaki
藤崎　真
Yuko Kano
鹿野　雄幸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hashimoto Forming Industry Co Ltd
Original Assignee
Hashimoto Forming Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hashimoto Forming Industry Co Ltd filed Critical Hashimoto Forming Industry Co Ltd
Priority to JP11798085A priority Critical patent/JPS61275042A/en
Publication of JPS61275042A publication Critical patent/JPS61275042A/en
Pending legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Laminated Bodies (AREA)

Abstract

PURPOSE:To prevent a foamed section from projecting outward as a result of gas contained by providing numbers of small holes which open on the back side of a molded item penetrating a foamed resin layer of an integrally molded item, the upper surface of which is covered with a non-intumescent resin layer. CONSTITUTION:A molding 2 is an integrally molded item, which is composed of a foamed resin layer 3 on the back side, a non-intumescent resin layer 4 on the upper surface side, and of a material in a sheet form in a middle section, having a core material which is not permeable to gas. And numbers of small holes 12 which open on the back side of the molded section 11, are distributed evenly to the longer direction of the molded item 11 where the tip end of the hole reaches the core material.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は車両等に取付けて、保護、装飾用として使用
される合成樹脂製モールディングおよびその製造方法に
関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a synthetic resin molding that is attached to a vehicle or the like and used for protection or decoration, and a method for manufacturing the same.

〔従来の技術〕[Conventional technology]

第６図は自動車の車体を示す斜視図、第７図はモールデ
ィングの斜視図、第８図はその裏面側から見た斜視図、
第９図は第６図のＡ−Ａ断面図である。図において、１
は車体で、側面に合成樹脂製のモールディング（サイド
モールディング）２が取付けられている。モールディン
グ２は裏面側にｐｖｃ樹脂等からなる発泡樹脂層３、外
表面側に同じ＜ｐｖｃ樹脂等からなるソリッド状の非発
泡樹脂層４．およびそれらの中間にアルミニウム箔や剛
性を有する合成樹脂シート等からなるガス非透過性の芯
材５が重合するように一体的に押出成形されている。FIG. 6 is a perspective view of the car body, FIG. 7 is a perspective view of the molding, and FIG. 8 is a perspective view of the back side of the molding.
FIG. 9 is a sectional view taken along the line AA in FIG. 6. In the figure, 1
is a vehicle body, and synthetic resin moldings (side moldings) 2 are attached to the sides. The molding 2 has a foamed resin layer 3 made of PVC resin or the like on the back side, and a solid non-foamed resin layer 4 made of the same PVC resin or the like on the outer surface side. A gas-impermeable core material 5 made of aluminum foil, a rigid synthetic resin sheet, or the like is integrally extruded so as to be polymerized between them.

上記のモールディング２は押出成形等により一体成形し
た長尺材を所定寸法に切断し、端末加工を行って製造さ
れ、第９図のように接着剤１両面粘着テープ等の固着材
６により裏面側を車体１に取付けて使用される。The above-mentioned molding 2 is manufactured by cutting a long material integrally molded by extrusion molding etc. into a predetermined size, and processing the ends, and as shown in FIG. is attached to the vehicle body 1 and used.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

しかしながら、このような従来のモールディングにおい
ては、製造の際押出成形型がら押出された直後、押出型
内の圧力が解放され、発泡樹脂層３が高温で不安定な状
態にあるときに、第８図に示すようにガスが集合して大
形の気泡７が発生し、裏面側に突出部８が発生したり、
製造時に突出部８が発生しない場合でも、炎天下で使用
すると、発泡樹脂層３に含まれる発泡剤が活性化し、同
様に突出部８が発生することがある。However, in such conventional molding, immediately after being extruded from the extrusion mold during manufacturing, the pressure inside the extrusion mold is released, and when the foamed resin layer 3 is in an unstable state at high temperature, the eighth As shown in the figure, gas gathers and large bubbles 7 are generated, and a protrusion 8 is generated on the back side.
Even if the protrusions 8 do not occur during manufacturing, when used in the hot sun, the foaming agent contained in the foamed resin layer 3 may be activated, and the protrusions 8 may also occur.

このように突出部８が発生すると、車体１との接着面が
少なくなるばかりでなく、使用中に発生すると、車体１
からモールディング２を剥離する力が作用することにな
り、モールディング２の取付強度が低下するという問題
点があった。If the protrusion 8 occurs in this way, not only will the adhesive surface with the car body 1 decrease, but if it occurs during use, the protrusion 8 will not only reduce the adhesive surface to the car body 1.
There is a problem in that a force is applied to peel off the molding 2 from the molding 2, resulting in a reduction in the mounting strength of the molding 2.

この発明は上記問題点を解決するためのもので、発泡層
のガスによる突出部が発生せず、取付強度が高くなるモ
ールディングおよびその製造方法を提供することを目的
としている。The present invention has been made to solve the above-mentioned problems, and aims to provide a molding that does not cause protrusions due to gas in the foam layer and has high mounting strength, and a method for manufacturing the molding.

〔問題点を解決するための手段〕[Means for solving problems]

この発明は次の合成樹脂製モールディングおよびその製
造方法である。The present invention is the following synthetic resin molding and its manufacturing method.

（１）発泡樹脂層およびその少なくとも外表面側に非発
泡樹脂層を一体的に形成した成形品がらなり、この成形
品は発泡樹脂層の内部から成形品の裏面側に開口する多
数の細孔を有することを特徴とする合成樹脂製モールデ
ィング。(1) A molded product consisting of a foamed resin layer and a non-foamed resin layer integrally formed on at least the outer surface side of the foamed resin layer, and this molded product has many pores that open from inside the foamed resin layer to the back side of the molded product. A synthetic resin molding characterized by having.

（２）発泡樹脂層およびその少なくとも外表面側に非発
泡樹脂層を有する成形品を押出成形し、押出された成形
品が高温で軟化状態のうちに、成形品の裏面側から発泡
樹脂層内に針状物を挿入して細孔を形成することを特徴
とする合成樹脂製モールディングの製造方法。(2) Extrusion molding a molded product having a foamed resin layer and a non-foamed resin layer on at least the outer surface side, and while the extruded molded product is softened at high temperature, insert the molded product into the foamed resin layer from the back side of the molded product. A method for producing a synthetic resin molding, which comprises inserting a needle-like object into the material to form pores.

〔作　用〕[For production]

この発明の合成樹脂製モールディングは押出成形等によ
り製造され、従来のものと同様にその裏面側を車体に取
付けて使用される。このモールディングは発泡樹脂層か
ら裏面側に開口する細孔を有するので、製造時または使
用時にガスが発生しても細孔を通して排出され、これに
より裏面側に突出部が発生せず、車体に対する取付強度
は大きくなる。The synthetic resin molding of the present invention is manufactured by extrusion molding or the like, and is used by attaching the back side to the vehicle body in the same manner as conventional moldings. This molding has pores that open from the foamed resin layer to the back side, so even if gas is generated during manufacturing or use, it will be discharged through the pores, eliminating the need for protrusions on the back side and making it easier to attach to the vehicle body. The intensity increases.

第２発明の製造方法では、押出成形の直後に成形品に細
孔を形成することができ、このため独立した細孔形成工
程を必要とせず、容易に細孔を形成することができる。In the manufacturing method of the second invention, pores can be formed in the molded product immediately after extrusion molding, and therefore, pores can be easily formed without requiring an independent pore-forming step.

〔実施例〕〔Example〕

第１図はこの発明の一実施例によるモールディングの裏
面側から見た斜視図、第２図はその一部の断面図であり
、第６図ないし第８図と同一符号は同一または相当部分
を示す。モールディング２は従来のものと同様に、裏面
側にＰｖＣ樹脂等の発泡樹脂からなる発泡樹脂層３、外
表面側にｐｖＣ樹脂等の非発泡樹脂からなる非発泡樹脂
層４゜およびそれらの中間にアルミニウム箔や硬質合成
樹脂シート等の剛性を有するシート状材料からなるガス
非透過性の芯材５の一体成形品１１からなる。そして成
形品１１の裏面側には、発泡樹脂層３の内部から成形品
１１の裏面側に開口する多数の細孔１２が、成形品１１
の長手方向にほぼ一定のピッチで、成形品１１の裏面全
体にほぼ均一に形成されており、その先端は芯材５に達
している。FIG. 1 is a perspective view of a molding according to an embodiment of the present invention as seen from the back side, and FIG. 2 is a sectional view of a part thereof, and the same reference numerals as in FIGS. 6 to 8 indicate the same or corresponding parts. show. The molding 2 has a foamed resin layer 3 made of foamed resin such as PvC resin on the back side, a non-foamed resin layer 4 made of non-foamed resin such as PvC resin on the outer surface side, and an intermediate layer between them. It consists of an integrally molded product 11 with a gas-impermeable core material 5 made of a rigid sheet-like material such as aluminum foil or a hard synthetic resin sheet. On the back side of the molded product 11, there are a large number of pores 12 that open from inside the foamed resin layer 3 to the back side of the molded product 11.
They are formed substantially uniformly over the entire back surface of the molded product 11 at substantially constant pitches in the longitudinal direction, and their tips reach the core material 5 .

上記のモールディング２は成形品１１を押出成形した直
後に細孔１２を形成し、この成形品１１を所定寸法に切
断し、端末加工して製造することができるが、射出成形
その他の方法によって製造することもできる。こうして
製造されたモールディング２は従来のものと同様に、細
孔１２のある裏面側を接着剤１両面粘着テープ等の固着
材６により車体１に取付は使用する。The molding 2 described above can be manufactured by forming the pores 12 immediately after extruding the molded product 11, cutting the molded product 11 to a predetermined size, and processing the ends, but it can also be manufactured by injection molding or other methods. You can also. The molding 2 manufactured in this manner is attached to the vehicle body 1 using an adhesive 1 and a fixing material 6 such as double-sided adhesive tape on the back side where the pores 12 are located, as in the conventional molding.

上記のモールディング２は細孔１２を有するので、製造
時または使用時にガスが発生しても細孔１２を通して排
出され、これにより従来のように大形の気泡７が発生せ
ず、裏面側に突出部８が発生しない。このため車体１と
の接着面が多くなり、取付強度は大きくなる。芯材５は
発泡樹脂層３において発生する気泡７による外表面側の
変形防止と剛性付与のために埋設されているが、芯材５
付近に気泡７が発生しやすいため、細孔１２が芯材５に
達していると、芯材５付近の気泡７の発生が防止され、
発泡樹脂層３と芯材５の剥離が防止される。Since the molding 2 described above has pores 12, even if gas is generated during manufacturing or use, it is discharged through the pores 12, and as a result, large air bubbles 7 are not generated as in the conventional case, and the gas bubbles protrude to the back side. Part 8 does not occur. Therefore, the number of adhesive surfaces with the vehicle body 1 increases, and the attachment strength increases. The core material 5 is buried in order to prevent deformation of the outer surface side due to air bubbles 7 generated in the foamed resin layer 3 and to provide rigidity.
Since air bubbles 7 are likely to be generated near the core material 5, if the pores 12 reach the core material 5, the generation of air bubbles 7 near the core material 5 is prevented.
Peeling of the foamed resin layer 3 and the core material 5 is prevented.

第３図は他の実施例によるモールディングの裏面側から
見た斜視図である。この実施例では非発泡樹脂層４が発
泡樹脂層３の裏面側にも形成されており、細孔１２は発
泡樹脂層３の内部から非発泡樹脂層４を貫通して成形品
１１の裏面側に開口しており、前記実施例とほぼ同様の
効果が得られる。FIG. 3 is a perspective view of a molding according to another embodiment, seen from the back side. In this embodiment, the non-foamed resin layer 4 is also formed on the back side of the foamed resin layer 3, and the pores 12 pass through the non-foamed resin layer 4 from inside the foamed resin layer 3 to the back side of the molded product 11. The opening is open to the left, and substantially the same effect as in the embodiment described above can be obtained.

第４図および第５図はそれぞれこの発明の別の実施例に
よる製造方法を示す正面図であり、１３は芯材ロール、
１４は押出成形型である。モールディングの製造方法は
、いずれの場合も芯材ロール１３から芯材５を押出成形
型１４に供給し、２個の押出機（図示省略）から発泡剤
を含む発泡樹脂および発泡剤を含まない非発泡樹脂を押
出成形型１４に供給して芯材５の両側に押出し１発泡樹
脂層３、非発泡樹脂層４および芯材５を一体的に有する
成形品１１を押出成形する。4 and 5 are front views showing a manufacturing method according to another embodiment of the present invention, respectively, in which 13 is a core roll;
14 is an extrusion mold. In either case, the molding manufacturing method involves supplying the core material 5 from the core material roll 13 to the extrusion mold 14, and then supplying the foamed resin containing a foaming agent and the non-foaming resin containing no foaming agent from two extruders (not shown). A foamed resin is supplied to an extrusion mold 14 to extrude a molded product 11 integrally having an extrusion 1 foamed resin layer 3, a non-foamed resin layer 4, and a core material 5 on both sides of a core material 5.

成形品１１が押出成形型１４を出た直後の高温で軟化状
態のうちに、第４図の場合には、複数の針１５が突出し
たホイール１６を成形品１１の裏面側に押付けておくこ
とにより、成形品１１の移動に伴ってホイール１６が回
転し、針１５の挿入により細孔１２が連続的に形成され
る。第５図の場合には、先端に複数の針１５を有するス
ライドプレート１７を押出成形型１４にスライド可能に
取付け、偏心クランク１８により上下動させることによ
り、針１５の挿入により細孔１２が形成される。第５図
の場合、偏心クランク１８の回転軸は押出機のスクリュ
ウの回転と同期するように制御するのが好ましい。In the case of FIG. 4, a wheel 16 from which a plurality of needles 15 protrude is pressed against the back side of the molded product 11 while the molded product 11 is in a softened state at a high temperature immediately after leaving the extrusion mold 14. As the molded product 11 moves, the wheel 16 rotates, and the needle 15 is inserted to continuously form the pores 12. In the case of FIG. 5, a slide plate 17 having a plurality of needles 15 at its tip is slidably attached to the extrusion mold 14, and is moved up and down by an eccentric crank 18 to form pores 12 by inserting the needles 15. be done. In the case of FIG. 5, the rotation shaft of the eccentric crank 18 is preferably controlled so as to be synchronized with the rotation of the screw of the extruder.

上記の製造方法によれば、いずれの場合にも、押出成形
直後の成形品１１が軟化状態のうちに細孔１２を形成す
るため、細孔１２を容易かつ正確に形成することができ
るとともに、押出成形の工程の途中に容易に細孔１２を
形成することがき、独立した細孔形成工程が不要である
。According to the above manufacturing method, in any case, the pores 12 are formed while the molded product 11 is in a softened state immediately after extrusion molding, so the pores 12 can be formed easily and accurately. The pores 12 can be easily formed during the extrusion molding process, eliminating the need for an independent pore formation process.

以上の説明において、モールディング２の形状。In the above description, the shape of the molding 2.

構造、材質等は変更可能である。またモールディング２
としてはサイドモールディングに限らず。Structure, material, etc. can be changed. Also molding 2
This is not limited to side moldings.

他の車両用等のモールディングであってもよい。It may also be a molding for other vehicles.

さらに製造方法は押出成形に限らず、また細孔１２の形
成方法も上記説明のものに限定されない。Further, the manufacturing method is not limited to extrusion molding, and the method for forming the pores 12 is not limited to the above-described method.

〔発明の効果〕〔Effect of the invention〕

この発明の合成樹脂製モールディングは裏面に細孔を形
成したため、製造時または使用時に発泡樹脂層で発生す
るガスが排出され、これにより裏面にまたは外表面側に
突出部が発生せず、取付強度が高くなる。Since the synthetic resin molding of this invention has pores formed on the back surface, gas generated in the foamed resin layer during manufacturing or use is exhausted, thereby preventing the formation of protrusions on the back surface or the outer surface side, and increasing the installation strength. becomes higher.

また第２発明の製造方法によれば、押出成形直後に細孔
を形成するため、上記モールディングが簡単な工程によ
り容易に得られるとともに、細孔が容易かつ正確に形成
できるなどの効果がある。Further, according to the manufacturing method of the second invention, since the pores are formed immediately after extrusion molding, the above-mentioned molding can be easily obtained through a simple process, and the pores can be easily and accurately formed.

【図面の簡単な説明】[Brief explanation of drawings]

第１図および第３図はそれぞれ別の実施例によるモール
ディングの裏面側から見た斜視図、第２図は第１図の一
部の断面図、第４図および第５図はそれぞれ別の実施例
による製造方法を示す正面図、第６図は自動車の車体の
斜視図、第７図は従来のモールディングの斜視図、第８
図はその裏面側から見た斜視図、第９図は第６図のＡ−
Ａ断面図である。 各図中、同一符号は同一または相当部分を示し。 ２はモールディング、３は発泡樹脂層、４は非発泡樹脂
層、５は芯材、１１は成形品、１２は細孔。 １４は押出成形型、１５は針、１６はホイール、１７は
スライドプレート、１８は偏心クランクである。 代理人　弁理士　柳　原　　　成 第１図 第３図 第６図 第７図1 and 3 are perspective views of moldings seen from the back side according to different embodiments, FIG. 2 is a sectional view of a part of FIG. 1, and FIGS. 4 and 5 are respectively different embodiments. 6 is a perspective view of an automobile body, FIG. 7 is a perspective view of a conventional molding, and FIG.
The figure is a perspective view seen from the back side, and Figure 9 is A- of Figure 6.
It is an A sectional view. In each figure, the same reference numerals indicate the same or corresponding parts. 2 is a molding, 3 is a foamed resin layer, 4 is a non-foamed resin layer, 5 is a core material, 11 is a molded product, and 12 is a pore. 14 is an extrusion mold, 15 is a needle, 16 is a wheel, 17 is a slide plate, and 18 is an eccentric crank. Agent Patent Attorney Sei Yanagihara Figure 1 Figure 3 Figure 6 Figure 7

Claims (7)

【特許請求の範囲】[Claims] （１）発泡樹脂層およびその少なくとも外表面側に非発
泡樹脂層を一体的に形成した成形品からなり、この成形
品は発泡樹脂層の内部から成形品の裏面側に開口する多
数の細孔を有することを特徴とする合成樹脂製モールデ
ィング。(1) Consists of a molded product in which a foamed resin layer and a non-foamed resin layer are integrally formed on at least the outer surface side of the foamed resin layer, and this molded product has many pores that open from inside the foamed resin layer to the back side of the molded product. A synthetic resin molding characterized by having. （２）非発泡樹脂層が発泡樹脂層の裏面側にも形成され
た特許請求の範囲第１項記載のモールディング。(2) The molding according to claim 1, wherein the non-foamed resin layer is also formed on the back side of the foamed resin layer. （３）成形品が発泡樹脂層と外表面側の非発泡樹脂層と
の間にガス非透過性の芯材を有する特許請求の範囲第１
項または第２項記載のモールディング。(3) The molded article has a gas-impermeable core material between the foamed resin layer and the non-foamed resin layer on the outer surface side.
The molding according to item 1 or 2. （４）細孔が発泡樹脂層を貫通して芯材に達するもので
ある特許請求の範囲第３項記載のモールディング。(4) The molding according to claim 3, wherein the pores penetrate the foamed resin layer and reach the core material. （５）発泡樹脂層およびその少なくとも外表面側に非発
泡樹脂層を有する成形品を押出成形し、押出された成形
品が高温で軟化状態のうちに、成形品の裏面側から発泡
樹脂層内に針状物を挿入して細孔を形成することを特徴
とする合成樹脂製モールディングの製造方法。(5) Extrusion molding a molded product having a foamed resin layer and a non-foamed resin layer on at least the outer surface side, and while the extruded molded product is in a softened state at a high temperature, insert the foamed resin layer from the back side of the molded product. A method for producing a synthetic resin molding, which comprises inserting a needle-like object into the material to form pores. （６）針状物の挿入が、突出した針状物を有するホイー
ルを成形品に押付けて行うものである特許請求の範囲第
５項記載の製造方法。(6) The manufacturing method according to claim 5, wherein the needle-like object is inserted by pressing a wheel having a protruding needle-like object against the molded product. （７）針状物の挿入が、先端に針状物を有するスライド
プレートを上下動させて行うものである特許請求の範囲
第５項記載の製造方法。(7) The manufacturing method according to claim 5, wherein the needle-like object is inserted by vertically moving a slide plate having a needle-like object at the tip.
JP11798085A 1985-05-31 1985-05-31 Synthetic resin molding and manufacture thereof Pending JPS61275042A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11798085A JPS61275042A (en) 1985-05-31 1985-05-31 Synthetic resin molding and manufacture thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11798085A JPS61275042A (en) 1985-05-31 1985-05-31 Synthetic resin molding and manufacture thereof

Publications (1)

Publication Number Publication Date
JPS61275042A true JPS61275042A (en) 1986-12-05

Family

ID=14725033

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11798085A Pending JPS61275042A (en) 1985-05-31 1985-05-31 Synthetic resin molding and manufacture thereof

Country Status (1)

Country Link
JP (1) JPS61275042A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007237771A (en) * 2006-03-06 2007-09-20 Ashimori Ind Co Ltd Cushioning material for cargo chamber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007237771A (en) * 2006-03-06 2007-09-20 Ashimori Ind Co Ltd Cushioning material for cargo chamber

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