JP2010030162A - Composite molded article - Google Patents

Composite molded article Download PDF

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Publication number
JP2010030162A
JP2010030162A JP2008195194A JP2008195194A JP2010030162A JP 2010030162 A JP2010030162 A JP 2010030162A JP 2008195194 A JP2008195194 A JP 2008195194A JP 2008195194 A JP2008195194 A JP 2008195194A JP 2010030162 A JP2010030162 A JP 2010030162A
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pair
synthetic resin
metal plate
holes
composite molded
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Takeshi Nishimura
剛 西村
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Nissha Printing Co Ltd
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Nissha Printing Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To obtain a composite molded article prevented from the whole being deformed even when a synthetic resin is thermally shrunk due to molding. <P>SOLUTION: The composite molded article is formed by laminating a metallic plate M and a synthetic resin molding part P. A pair of through-holes 1 which are away from each other are provided in the metallic plate M, a pair of engaging projection parts 2 which respectively engage with a pair of through-holes 1 are provided on a surface of the synthetic resin molding part P facing the metallic plate M. In the metallic plate M, a clearance S, where at least one of a pair of engaging projection parts 2 can approach to the other engaging projection part 2 while maintaining an engaging state, is formed so that the synthetic resin molding part P does not go apart from the metallic plate M in a lamination direction attendant upon thermal shrinkage of the synthetic resin molding part P. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

金属板と合成樹脂成形体部とを積層した複合成形品に関する。   The present invention relates to a composite molded product in which a metal plate and a synthetic resin molded body are laminated.

従来、前記複合成形品としては、薄板金属板にラミネート樹脂加工を施した後、その薄板金属板を予め金型内に設置して溶融した合成樹脂を射出し、ラミネート樹脂と成形用合成樹脂とが溶着結合して金属板と一体接着したインサート成形品があった（例えば、特許文献１参照）。   Conventionally, as the composite molded article, a thin sheet metal plate is subjected to a laminate resin processing, and then the thin sheet metal plate is placed in a mold in advance, and a molten synthetic resin is injected. There was an insert molded product that was welded and bonded together with a metal plate (for example, see Patent Document 1).

特開２００３−６２８５７号公報（図１）Japanese Patent Laying-Open No. 2003-62857 (FIG. 1)

上述した従来の成形品では、金属板が広い面積で密着していると成形後の温度降下に起因した合成樹脂の収縮により、全体が図７（ａ）で示すように収縮前の仮想線の状態から、収縮により実線で示した形に変形しやすい。そこで、その変形を見越した成形型の設計を必要として、複雑で手間がかかるという問題点があった。   In the conventional molded product described above, if the metal plate is in close contact with a wide area, the whole of the virtual line before shrinkage is caused by the shrinkage of the synthetic resin due to the temperature drop after molding as shown in FIG. It is easy to deform from the state to the shape shown by the solid line by contraction. Therefore, it is necessary to design the mold in anticipation of the deformation, and there is a problem that it is complicated and troublesome.

また、金属板と合成樹脂との接着剤による化学的接着は、強固な接着力が得にくく、合成樹脂の収縮による変形で両者は剥離する危険性があるために、金属板に係止用の穴を複数設け、それらの穴に係止固定する複数の係止突部を合成樹脂成形体部に設けて、複合成形品を形成することも考えられる。しかし、この場合も図７（ｂ）に示すように、熱収縮に基づく変形は避けられない。   In addition, chemical bonding with an adhesive between a metal plate and a synthetic resin makes it difficult to obtain a strong adhesive force, and there is a risk that the two will peel off due to deformation due to the shrinkage of the synthetic resin. It is also conceivable to form a composite molded product by providing a plurality of holes and providing a plurality of locking projections for locking and fixing to these holes in the synthetic resin molded body. However, in this case as well, as shown in FIG. 7B, deformation based on heat shrinkage is inevitable.

従って、本発明の目的は、上記問題点を解消し、特に合成樹脂が成形に基づいて熱収縮しても、全体の変形を防止できる複合成形品を得るところにある。   Accordingly, an object of the present invention is to solve the above-mentioned problems and to obtain a composite molded product that can prevent the entire deformation even when the synthetic resin is thermally contracted based on molding.

本発明の第１の特徴構成は、金属板と合成樹脂成形体部とを積層した複合成形品であって、互いに離間した一対の貫通孔を前記金属板に設け、前記一対の貫通孔に各別に係止する一対の係止突部を、前記合成樹脂成形体部の前記金属板に対向する面に設け、前記一対の係止突部の少なくとも一方が前記合成樹脂成形体部の熱収縮に伴って前記金属板に対してその積層方向に離間しないように係止状態を維持しながら前記他方の係止突部に向けて近接移動可能な隙間を、前記金属板に形成してあるところにある。   A first characteristic configuration of the present invention is a composite molded product in which a metal plate and a synthetic resin molded body portion are laminated, and a pair of through holes spaced apart from each other are provided in the metal plate, and each of the pair of through holes is provided with each of the pair of through holes. A pair of locking projections to be separately locked is provided on a surface of the synthetic resin molded body portion facing the metal plate, and at least one of the pair of locking projections is used for heat shrinkage of the synthetic resin molded body portion. Accordingly, a gap is formed in the metal plate that is movable toward the other locking projection while maintaining the locked state so as not to be separated from the metal plate in the stacking direction. is there.

また、本件発明の第２の特徴構成は、前記一対の貫通孔が一個の貫通孔と別の一個の貫通孔との間で対を成しているところにある。   Moreover, the 2nd characteristic structure of this invention exists in the place where the pair of said through-hole forms a pair between one through-hole and another through-hole.

また、本件発明の第３の特徴構成は、前記一対の貫通孔が一個の貫通孔と複数個の貫通孔との間で対を成し、前記隙間を、当該複数個の貫通孔に係止する前記係止突部が移動可能になるように、前記金属板に形成してあるところにある。
〔作用及び効果〕
本発明の第１乃至３の特徴構成のように、互いに離間した一対の貫通孔と、これに係止する係止突部とを、金属板と合成樹脂成形体部に対向設置することにより、合成樹脂成形体部と金属板とを確実に積層した状態で一体化できる。また、一対の係止突部の少なくとも一方が合成樹脂成形体部の熱収縮に伴って金属板と係止状態を維持しつつ、金属板に形成した隙間を介して他方の係止突部に向けて近接移動できるため、合成樹脂成形体部が特に成形時に熱収縮しても、金属板と合成樹脂成形体部とが積層状態で一体化した複合成形品全体は、そり変形等することなく形状を維持できる。 Further, according to a third characteristic configuration of the present invention, the pair of through holes form a pair between one through hole and a plurality of through holes, and the gap is locked to the plurality of through holes. The locking projection is formed on the metal plate so as to be movable.
[Action and effect]
As in the first to third characteristic configurations of the present invention, a pair of through holes spaced apart from each other and a locking projection that is locked to the pair are opposed to the metal plate and the synthetic resin molded body, The synthetic resin molded body part and the metal plate can be integrated in a reliably laminated state. In addition, at least one of the pair of locking projections maintains the locked state with the metal plate as the synthetic resin molded body portion contracts, and the other locking projection protrudes through the gap formed in the metal plate. The entire composite molded product in which the metal plate and the synthetic resin molded part are integrated in a laminated state is not warped and deformed even if the synthetic resin molded part is thermally shrunk especially during molding. The shape can be maintained.

本発明の第４の特徴構成は、前記第１乃至３の特徴構成の複合成形品の成形方法であって、予め、互いに合わせて金属板をインサート成形するための一対の第１、第２成形型を設け、前記金属板を設置する一方の第１成形型に、前記一対の貫通孔に各別に係止する一対の係止突部を形成するための第１凹部を設けると共に、前記一対の貫通孔の少なくとも一方に嵌入して、前記隙間を形成するための突出部を設けておき、他方の第２成形型に、合成樹脂成形体部を成形するための第２凹部を設けておき、前記第１成形型に前記金属板を設置させた状態で、前記第１、第２成形型を合わせて前記第１、第２凹部に溶融した合成樹脂を射出することにより前記金属板と合成樹脂成形体部を積層させるところにある。   A fourth characteristic configuration of the present invention is a method of forming a composite molded article having the first to third characteristic configurations, and a pair of first and second moldings for insert-molding a metal plate together in advance. A mold is provided, and a first recess for forming a pair of locking projections to be individually locked in the pair of through holes is provided in one first molding mold on which the metal plate is installed, Inserted into at least one of the through holes, provided with a protruding portion for forming the gap, and provided with a second recess for molding the synthetic resin molded body portion on the other second molding die, In a state where the metal plate is installed in the first mold, the metal plate and the synthetic resin are injected by injecting molten synthetic resin into the first and second recesses together with the first and second molds. There is a place where the molded body is laminated.

〔作用及び効果〕
つまり、第１成形型と第２成形型とを合わせて溶融した合成樹脂を射出すると、第２成形型の第２凹部に充填する合成樹脂により合成樹脂成形体部が形成されると共に、第１成形型の第１凹部にも合成樹脂が充填されて、金属板の一対の貫通孔に各別に係止した一対の係止突部が同時に形成できる。
しかも、第１成形型に設けてある突出部が前記一対の貫通孔の少なくとも一方に嵌入することにより、貫通孔と係止突部との間の前記隙間が形成される。このため、成形型の簡単な形成によって、金属板をインサート成形した複合成形品が成形できると共に、前記隙間の形成によって、成形時の合成樹脂の熱収縮によっても、変形を防止した複合成形品が、第１、第２成形型により簡単に成形出来る。 [Action and effect]
That is, when a synthetic resin melted by combining the first mold and the second mold is injected, a synthetic resin molded body is formed by the synthetic resin filling the second recess of the second mold, and the first The first concave portion of the molding die is also filled with synthetic resin, and a pair of locking projections that are individually locked in the pair of through holes of the metal plate can be formed simultaneously.
In addition, the protrusion provided on the first mold is fitted into at least one of the pair of through holes, thereby forming the gap between the through hole and the locking protrusion. For this reason, a composite molded product in which a metal plate is insert-molded can be molded by simple formation of a molding die, and a composite molded product that prevents deformation due to heat shrinkage of synthetic resin during molding by forming the gap. The first and second molds can be easily molded.

以下に本発明の複合成形品の実施の形態を図面に基づいて説明する。尚、図面において従来例と同一の符号で表示した部分は、同一又は相当の部分を示している。   Embodiments of the composite molded product of the present invention will be described below with reference to the drawings. In the drawings, the parts denoted by the same reference numerals as those in the conventional example indicate the same or corresponding parts.

〔第１実施形態〕
図１〜図２（ａ）,（ｂ）に示すように、金属板Ｍと合成樹脂成形体部Ｐとを積層した複合成形品を形成するのに、互いに離間した貫通孔１ａ及び貫通孔１ｂを一対として金属板Ｍに設け、一対の貫通孔１に各別に係止する一対の係止突部２を、合成樹脂成形体部Ｐの金属板Ｍに対向する面に設けて、一対の貫通孔１に一対の係止突部２を夫々係止させることにより、金属板Ｍと合成樹脂成形体部Ｐとが積層一体化した複合成形品が構成されている。 [First Embodiment]
As shown in FIGS. 1 to 2 (a) and 2 (b), a through-hole 1a and a through-hole 1b spaced apart from each other are formed to form a composite molded product in which a metal plate M and a synthetic resin molded body P are laminated. Are provided on the metal plate M as a pair, and a pair of locking projections 2 that are individually locked in the pair of through holes 1 are provided on the surface of the synthetic resin molded body portion P facing the metal plate M, so that the pair of through holes By locking the pair of locking projections 2 in the holes 1, a composite molded product in which the metal plate M and the synthetic resin molded body P are laminated and integrated is configured.

一対の貫通孔１の内の一方の第１貫通孔１ａを、他方の第２貫通孔１ｂに向けて延設したダルマ形の長孔形状に形成すると共に、一対の係止突部２の内の一方の第１係止突部２ａを、第１貫通孔１ａを挿通する小径の第１軸部３ａと、抜け止めする大径の第１鍔部４ａとから形成してある。
第１係止突部２ａが係止する第１貫通孔１ａとの間に、合成樹脂成形体部Ｐの熱収縮に伴って金属板Ｍに対してその積層方向に離間しないように係止状態を維持しながら他方の第２係止突部２ｂに向けて近接移動可能な隙間Ｓを形成してある。
尚、第２貫通孔１ｂは円形で、それに係止する第２係止突部２ｂも第２貫通孔１ｂを挿通する小径の第２軸部３ｂと、抜け止め作用をする大径の第２鍔部４ｂとを形成して、第２貫通孔１ｂに対して移動しないように固定されている。 One of the pair of through-holes 1 is formed in a long Dalma-shaped hole extending toward the other second through-hole 1b, and the inside of the pair of locking projections 2 One of the first locking projections 2a is formed of a small-diameter first shaft portion 3a that is inserted through the first through hole 1a and a large-diameter first flange portion 4a that is prevented from coming off.
Between the first through-hole 1a that the first locking projection 2a locks, the metal plate M is locked so as not to be separated in the stacking direction due to the thermal contraction of the synthetic resin molded body P. A gap S is formed which can be moved close to the other second locking projection 2b while maintaining the above.
The second through-hole 1b is circular, and the second locking projection 2b that locks the second through-hole 1b is also a small-diameter second shaft portion 3b that passes through the second through-hole 1b, and a large-diameter second shaft that prevents the second through-hole 1b. The flange 4b is formed and fixed so as not to move with respect to the second through hole 1b.

次に、前記複合成形品の成形金型について説明すると、図３（ａ）〜図３（ｃ）に示すように、互いに合わせて金属板をインサート成形するための一対の第１、第２成形型５，６を設け、金属板Ｍを設置する一方の第１成形型５に、一対の貫通孔１に各別に係止する一対の係止突部２を形成するための第１凹部７を設ける。さらに、一対の貫通孔１の少なくとも一方に嵌入して、隙間Ｓを形成するための突出部８を設け、他方の第２成形型６に、合成樹脂成形体部Ｐを成形するためのキャビティとしての第２凹部９を設けてある（図３（ｂ））。
第１成形型５に金属板Ｍを設置させた状態で、第１、第２成形型５，６を合わせて第１、第２凹部７，９に溶融した合成樹脂を射出することにより金属板Ｍと合成樹脂成形体部Ｐとが積層するインサート成形品ができる(図３（ｃ）)。
尚、インサート成形時には、金属板Ｍと合成樹脂成形体部Ｐとは、成形時の熱収縮に伴う第１係止突部２ａの前記移動が可能になるように、両者を非接着状態になるようにしてある。 Next, the molding die for the composite molded product will be described. As shown in FIGS. 3 (a) to 3 (c), a pair of first and second moldings for insert-molding a metal plate together with each other. The first recesses 7 for forming the pair of locking projections 2 that are respectively locked to the pair of through holes 1 are provided in the first molding die 5 in which the molds 5 and 6 are provided and the metal plate M is installed. Provide. Furthermore, it is fitted into at least one of the pair of through-holes 1 to provide a protruding portion 8 for forming the gap S, and as a cavity for molding the synthetic resin molded body portion P in the other second molding die 6. The second recess 9 is provided (FIG. 3B).
The metal plate M is injected by injecting the molten synthetic resin into the first and second recesses 7 and 9 together with the first and second molds 5 and 6 in a state where the metal plate M is installed in the first mold 5. An insert molded product in which M and the synthetic resin molded body part P are laminated can be obtained (FIG. 3C).
At the time of insert molding, the metal plate M and the synthetic resin molded part P are brought into a non-bonded state so that the first locking projection 2a can be moved due to thermal contraction at the time of molding. It is like that.

また、金属板Ｍの外周部は、第１成形型５に形成した凹部５Ａ内に嵌入して固定されるように形成してあり、これにより、第１、第２成形型５，６内に溶融した合成樹脂を射出する際に、金属板Ｍが移動するのを防止してある。   Further, the outer peripheral portion of the metal plate M is formed so as to be fitted and fixed in the concave portion 5A formed in the first mold 5, and thereby, in the first and second molds 5 and 6. The metal plate M is prevented from moving when the molten synthetic resin is injected.

〔第２実施形態〕
前記複合成形品については、図４に示すように、金属板Ｍの外形寸法よりも合成樹脂成形体部Ｐの外形寸法を大にして、成形金型に金属板Ｍの固定用突部１０を設ける形状に設計してあれば、金属板が突部１０により位置決め固定されるために、溶融樹脂吐出用のサイドゲートから溶融樹脂が成形金型のキャビティ内に入ってきても、その流動力により金属板Ｍが浮き上がり移動するという不都合はなくなり、安定した製品ができる。 [Second Embodiment]
For the composite molded product, as shown in FIG. 4, the outer dimension of the synthetic resin molded body P is made larger than the outer dimension of the metal plate M, and the fixing protrusion 10 of the metal plate M is placed on the molding die. If the shape to be provided is designed, the metal plate is positioned and fixed by the protrusion 10, so even if the molten resin enters the cavity of the molding die from the side gate for discharging the molten resin, There is no inconvenience that the metal plate M is lifted and moved, and a stable product is obtained.

〔第３実施形態〕
図５に示すように、第２係止突部２ｂに対する第２貫通孔１ｂを１箇所に設け、これに対して各第１係止突部２ａが第２係止突部２ｂに向けて放射状に移動できるように、第１貫通孔１ａを第２貫通孔１ｂに対して放射状に配置してある。 [Third Embodiment]
As shown in FIG. 5, the second through-hole 1b for the second locking projection 2b is provided at one location, and each first locking projection 2a is radially directed toward the second locking projection 2b. The first through holes 1a are arranged radially with respect to the second through holes 1b so that the first through holes 1a can be moved.

〔第４実施形態〕
図６（ａ），（ｂ）に示すように、金属板Ｍと合成樹脂成形体部Ｐとを積層した別の複合成形品では、一対の貫通孔として開口部１１を金属板Ｍに設けてある（図６（ａ））。ここでは、一箇所の大寸法で矩形の開口部１１Ａと、その一辺に沿って並ぶ３箇所の小寸法で矩形の開口部１１Ｂとを一対とする開口部１１の内縁部１２に各別に係止する一対の係止突部２を、合成樹脂成形体部Ｐの金属板Ｍに対向する面に設け、合成樹脂成形体部Ｐの熱収縮に伴う一対の係止突部２の近接移動を、金属板Ｍとの係止状態を維持しながら許容可能に、係止突部２の金属板Ｍに対する係止深さを設定してある(図６（ｂ）)。 [Fourth Embodiment]
As shown in FIGS. 6A and 6B, in another composite molded product in which the metal plate M and the synthetic resin molded body P are laminated, the opening 11 is provided in the metal plate M as a pair of through holes. Yes (FIG. 6A). Here, the large-sized rectangular opening 11A at one location and the small-sized rectangular openings 11B arranged along one side of the rectangular opening 11B are individually locked to the inner edge portion 12 of the opening 11. A pair of locking projections 2 is provided on the surface of the synthetic resin molded body P facing the metal plate M, and the proximity movement of the pair of locking projections 2 due to the thermal contraction of the synthetic resin molded body P is The locking depth of the locking projection 2 with respect to the metal plate M is set to be acceptable while maintaining the locked state with the metal plate M (FIG. 6B).

尚、この実施形態では、開口部１１の内の最大の寸法のもの１１Ａが窓部を構成し、当該開口部１１Ａに係止する係止突部２は、開口部１１Ａが覆って窓部カバーを構成する部分と、開口部１１Ａの全周に亘って抜け止めする鍔部１３とを形成して、小寸法の開口部１１Ｂに対して移動しないように固定されている。   In this embodiment, the largest dimension 11A in the opening 11 constitutes the window, and the locking projection 2 that is locked to the opening 11A is covered by the opening 11A and covered with the window cover. And a flange 13 that prevents the opening 11A from being removed over the entire periphery of the opening 11A, and is fixed so as not to move with respect to the small-sized opening 11B.

また、小寸法の開口部１１Ｂに係止する係止突部２は、開口部１１Ｂの一辺に沿った帯状の軸部と、開口部１１Ｂの当該一辺で抜け止めする鍔部１３とを形成してある。   In addition, the locking projection 2 that locks to the small-sized opening 11B forms a band-shaped shaft portion along one side of the opening 11B and a flange 13 that prevents the opening 11B from coming off at the one side. It is.

また、前記開口部１１Ａとは別の開口部１１Ｂは、第３実施形態と同様に、開口部１１Ｂに係止する係止突部２が、開口部１１Ａに対して合成樹脂成形体部Ｐの熱収縮に伴い、放射状に移動できるように形成してある。
尚、本実施形態では、３箇所の小寸法の開口部１１Ｂのうち、中央の開口部１１Ｂは一辺全体に亘って係止突部２が係止しているが、両端の開口部１１Ｂは、放射状に移動しやすいように、一辺全体に亘っては係止突部２が係止していない。 Further, the opening 11B, which is different from the opening 11A, is similar to the third embodiment in that the locking projection 2 to be locked to the opening 11B is formed on the synthetic resin molded part P with respect to the opening 11A. It is formed so that it can move radially with thermal contraction.
In this embodiment, among the three small-sized openings 11B, the central opening 11B is locked by the locking projection 2 over the entire side, but the openings 11B at both ends are The locking protrusion 2 is not locked over the entire side so that it can be easily moved radially.

〔別実施形態〕
〈１〉 前記貫通孔１に対する係止突部２は、全て相互に相対移動可能な構造であっても良い。 [Another embodiment]
<1> The locking protrusions 2 with respect to the through holes 1 may all have a structure that can move relative to each other.

尚、上述のように、図面との対照を便利にするために符号を記したが、該記入により本発明は添付図面の構成に限定されるものではない。また、本発明の要旨を逸脱しない範囲において、種々なる態様で実施し得ることは勿論である。   In addition, as mentioned above, although the code | symbol was written in order to make contrast with drawing convenient, this invention is not limited to the structure of an accompanying drawing by this entry. In addition, it goes without saying that the present invention can be carried out in various modes without departing from the gist of the present invention.

実施形態で説明する合成樹脂成形体部を示す斜視図The perspective view which shows the synthetic resin molded object part demonstrated by embodiment （ａ）実施形態の複合成形品の横断面図、（ｂ）実施形態の複合成形品の縦断面図(A) Cross-sectional view of the composite molded product of the embodiment, (b) Vertical cross-sectional view of the composite molded product of the embodiment （ａ）第１成形型と金属板とを組付ける前の分解斜視図、（ｂ）第１成形型と第２成形型とを合わせた状態の縦断面図、（ｃ）第１成形型と第２成形型とを合わせて合成樹脂を充填した状態の縦断面図(A) Exploded perspective view before assembling first mold and metal plate, (b) Longitudinal sectional view of first mold and second mold combined, (c) First mold Longitudinal sectional view of the second mold and the synthetic resin filled 第２実施形態の合成樹脂を充填した成形型の縦断面図Longitudinal sectional view of a mold filled with a synthetic resin according to the second embodiment 第３実施形態の複合成形品の横断面図Cross-sectional view of the composite molded product of the third embodiment （ａ）第４実施形態の金属板の斜視図、（ｂ）図６（ａ）VI−VI線縦断面図(A) Perspective view of metal plate of fourth embodiment, (b) FIG. 6 (a) VI-VI line longitudinal sectional view （ａ）従来例の縦断面図、（ｂ）従来例の縦断面図(A) Vertical sectional view of a conventional example, (b) Vertical sectional view of a conventional example

符号の説明Explanation of symbols

１ 貫通孔
２ 係止突部
Ｍ 金属板
Ｐ 合成樹脂成形体部
Ｓ 隙間
１１ 開口部
１２ 内縁部
５ 第１成形型
６ 第２成形型
７ 第１凹部
９ 第２凹部 DESCRIPTION OF SYMBOLS 1 Through-hole 2 Locking protrusion M Metal plate P Synthetic-resin-molding body part S Crevice 11 Opening part 12 Inner edge part 5 1st shaping | molding die 6 2nd shaping | molding die 7 1st recessed part 9 2nd recessed part

Claims (4)

金属板と合成樹脂成形体部とを積層した複合成形品であって、互いに離間した一対の貫通孔を前記金属板に設け、前記一対の貫通孔に各別に係止する一対の係止突部を、前記合成樹脂成形体部の前記金属板に対向する面に設け、前記一対の係止突部の少なくとも一方が前記合成樹脂成形体部の熱収縮に伴って前記金属板に対してその積層方向に離間しないように係止状態を維持しながら前記他方の係止突部に向けて近接移動可能な隙間を、前記金属板に形成してある複合成形品。   A composite molded product in which a metal plate and a synthetic resin molded body are laminated, and a pair of locking projections that are provided in the metal plate with a pair of through-holes spaced apart from each other and are respectively locked in the pair of through-holes Is provided on the surface of the synthetic resin molded body portion facing the metal plate, and at least one of the pair of locking projections is laminated on the metal plate with thermal contraction of the synthetic resin molded body portion. A composite molded product in which a gap that can be moved close to the other locking projection is formed in the metal plate while maintaining a locked state so as not to be separated in the direction. 前記一対の貫通孔が一個の貫通孔と別の一個の貫通孔との間で対を成している請求項１記載の複合成形品。   The composite molded article according to claim 1, wherein the pair of through holes form a pair between one through hole and another through hole. 前記一対の貫通孔が一個の貫通孔と複数個の貫通孔との間で対を成し、前記隙間を、当該複数個の貫通孔に係止する前記係止突部が移動可能になるように、前記金属板に形成してある請求項１記載の複合成形品。   The pair of through-holes form a pair between one through-hole and a plurality of through-holes, and the locking protrusions that lock the gaps into the plurality of through-holes are movable. The composite molded article according to claim 1, which is formed on the metal plate. 請求項１乃至３いずれか一項記載の複合成形品の成形方法であって、予め、互いに合わせて金属板をインサート成形するための一対の第１、第２成形型を設け、前記金属板を設置する一方の第１成形型に、前記一対の貫通孔に各別に係止する一対の係止突部を形成するための第１凹部を設けると共に、前記一対の貫通孔の少なくとも一方に嵌入して、前記隙間を形成するための突出部を設けておき、他方の第２成形型に、合成樹脂成形体部を成形するための第２凹部を設けておき、前記第１成形型に前記金属板を設置させた状態で、前記第１、第２成形型を合わせて前記第１、第２凹部に溶融した合成樹脂を射出することにより前記金属板と合成樹脂成形体部を積層させる複合成形品の成形方法。   A method for forming a composite molded product according to any one of claims 1 to 3, wherein a pair of first and second forming dies for insert-molding a metal plate together with each other is provided in advance, One of the first molds to be installed is provided with a first recess for forming a pair of locking projections that are individually locked to the pair of through holes, and is fitted into at least one of the pair of through holes. A protrusion for forming the gap, a second recess for forming the synthetic resin molded body part in the second mold, and the metal in the first mold. Composite molding in which the metal plate and the synthetic resin molded body are laminated by injecting molten synthetic resin into the first and second recesses together with the first and second molds in a state where the plate is installed Molding method.
JP2008195194A 2008-07-29 2008-07-29 Composite molded article Withdrawn JP2010030162A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017065218A (en) * 2015-10-02 2017-04-06 トヨタ自動車株式会社 Manufacturing method of composite material
JP2018015418A (en) * 2016-07-29 2018-02-01 パナソニックＩｐマネジメント株式会社 Chair for bathroom
JP2018176642A (en) * 2017-04-19 2018-11-15 キョーラク株式会社 Structure
JP2020175225A (en) * 2020-07-21 2020-10-29 パナソニックＩｐマネジメント株式会社 Bathroom chair

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017065218A (en) * 2015-10-02 2017-04-06 トヨタ自動車株式会社 Manufacturing method of composite material
JP2018015418A (en) * 2016-07-29 2018-02-01 パナソニックＩｐマネジメント株式会社 Chair for bathroom
JP2018176642A (en) * 2017-04-19 2018-11-15 キョーラク株式会社 Structure
JP6989753B2 (en) 2017-04-19 2022-01-12 キョーラク株式会社 Structure
JP2020175225A (en) * 2020-07-21 2020-10-29 パナソニックＩｐマネジメント株式会社 Bathroom chair
JP7033752B2 (en) 2020-07-21 2022-03-11 パナソニックＩｐマネジメント株式会社 Bathroom chair

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