JP2020055224A - Vehicle resin member manufacturing method and mold device - Google Patents

Vehicle resin member manufacturing method and mold device Download PDF

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JP2020055224A
JP2020055224A JP2018187693A JP2018187693A JP2020055224A JP 2020055224 A JP2020055224 A JP 2020055224A JP 2018187693 A JP2018187693 A JP 2018187693A JP 2018187693 A JP2018187693 A JP 2018187693A JP 2020055224 A JP2020055224 A JP 2020055224A
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mold
resin member
gas vent
convex portion
front side
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JP7166129B2 (en
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鈴木　茂樹
Shigeki Suzuki
茂樹 鈴木
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Inoac Corp
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Inoue MTP KK
Inoac Corp
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Abstract

To improve an appearance of a convex part.SOLUTION: While gas is exhausted between a gas vent hole 44, which is arranged corresponding to a top part 17 of a convex part 16 and is set smaller than the top part 17, and a gas vent pin 46 fitted in the gas vent hole 44, a first resin member 12 is molded so that a step part 17c is formed on the top part 17 of the convex part 16 between a common mold 32 and a first mold 34. Next, between the first resin member 12 held by the common mold 32 and a second mold 36, a vehicle resin member 10 is obtained by molding a second resin member 14 on a front side of the first resin member 12 so that the top part 17 of the convex part 16 is exposed.SELECTED DRAWING: Figure 5

Description

この発明は、多色成形による車両用樹脂部材の製造方法およびこれに用いることができる型装置に関するものである。   The present invention relates to a method for manufacturing a resin member for a vehicle by multicolor molding and a mold device that can be used for the method.

自動車等の車両には、内装を構成する車両内装部材や外装を構成する車両外装部材として樹脂部材が用いられており、このような車両用樹脂部材に模様を付して意匠性の向上が図られることがある。特に、乗員室内に配設される車両内装部材(インストルメントパネルやフロアコンソールなど)は、本革または該本革に似せて成形された樹脂シートからなる複数の表皮を糸で縫合した表皮材を基材の表面に配設することで、意匠面の質感向上を図ったものがある。しかし、表皮をミシン等により糸で縫合することは手間およびコストがかかることから、縫い目を成形により再現したステッチ模様を有する車両内装部材が提案されている(例えば、特許文献１参照)。特許文献１の樹脂成形品は、凸形状の糸目部が設けられた縫い目部位の上に基材を形成する二色成形により得られ、基材から露出する糸目部によって縫い目が表現されている。また、特許文献１の樹脂成形品には、糸目部の裏側に肉盗み部が設けられ、表側に現れる糸目部の形状を肉盗み部によって安定させている。   In a vehicle such as an automobile, a resin member is used as a vehicle interior member constituting an interior or a vehicle exterior member constituting an exterior, and a design is improved by adding a pattern to such a vehicle resin member. May be used. In particular, vehicle interior members (instrument panels, floor consoles, etc.) disposed in the passenger compartment are made of a leather material obtained by sewing a plurality of skins made of genuine leather or a resin sheet formed to resemble the genuine leather with threads. There is a case in which the texture of the design surface is improved by disposing it on the surface of the base material. However, since sewing the outer skin with a thread using a sewing machine or the like requires time and cost, a vehicle interior member having a stitch pattern in which a seam is reproduced by molding has been proposed (for example, see Patent Document 1). The resin molded product of Patent Document 1 is obtained by two-color molding in which a base material is formed on a seam portion provided with a convex thread portion, and the seam is expressed by the thread portion exposed from the base material. Further, in the resin molded product of Patent Literature 1, a meat stolen portion is provided on the back side of the thread portion, and the shape of the thread portion appearing on the front side is stabilized by the meat stolen portion.

特許第５８７８３８６号公報Japanese Patent No. 5878386

成形型のキャビティにおいて糸目部に対応する部分が狭くなるので、前述した縫い目部位を成形するとき、糸目部の先端に合成樹脂が最後に充填されることになる。このため、キャビティにおける糸目部の先端に対応する部分にガス溜まりができることにより、糸目部の先端が欠けてしまうショートショットが起こるおそれがある。特に、糸目部が小さくなると、ショートショットが起こり易くなる。   Since the portion corresponding to the thread portion in the cavity of the mold becomes narrower, the synthetic resin is finally filled at the tip of the thread portion when forming the above-described stitched portion. For this reason, a short shot in which the tip of the thread portion is chipped may occur due to gas accumulation in a portion corresponding to the tip of the thread portion in the cavity. In particular, when the thread portion is small, a short shot is likely to occur.

本発明は、従来の技術に係る前記問題に鑑み、これらを好適に解決するべく提案されたものであって、見栄えのよい模様を形成し得る車両用樹脂部材の製造方法および型装置を提供することを目的とする。   SUMMARY OF THE INVENTION The present invention has been proposed in view of the above-mentioned problems relating to the prior art, and has been proposed in order to appropriately solve the problems, and provides a method and apparatus for manufacturing a resin member for a vehicle, which can form a good-looking pattern. The purpose is to:

前記課題を克服し、所期の目的を達成するため、本発明に係る車両用樹脂部材の製造方法は、
表側へ突出する凸状部に対応して裏側へ開口する凹状部が形成された第１樹脂部材と、前記凸状部の頂部分が露出するように該第１樹脂部材の表側に重ねて配置された第２樹脂部材とを備え、前記第２樹脂部材から表側へ露出する前記凸状部の頂部分によって模様を形成する車両用樹脂部材の製造方法であって、
前記凸状部の頂部分に対応して配置されると共に該頂部分よりも小さく設定されたガス抜き孔と、該ガス抜き孔に嵌め合わされたガス抜きピンとの間からガスを排出しつつ、共通型と第１型との間において、前記凸状部の頂部分に、その外縁部と該外縁部よりも表側へ膨らむ中央部との間に段部が形成されるように、前記第１樹脂部材を成形し、
前記共通型に保持された前記第１樹脂部材と第２型との間において、前記凸状部の頂部分が露出するように、前記第１樹脂部材の表側に前記第２樹脂部材を成形することを要旨とする。 In order to overcome the above problems and achieve the intended object, a method for manufacturing a resin member for a vehicle according to the present invention includes:
A first resin member having a concave portion that opens to the back side corresponding to the convex portion protruding to the front side; and a first resin member disposed on the front side of the first resin member so that a top portion of the convex portion is exposed. A method for manufacturing a resin member for a vehicle, comprising: forming a pattern by a top portion of the convex portion exposed to the front side from the second resin member, comprising:
While discharging gas from between a gas vent hole arranged corresponding to the top portion of the convex portion and being set smaller than the top portion and a gas vent pin fitted into the gas vent hole, common gas is discharged. Between the mold and the first mold, the first resin is formed such that a step is formed at the top of the convex portion between an outer edge thereof and a central portion which bulges to the front side more than the outer edge. Mold the member,
The second resin member is formed on the front side of the first resin member so that the top of the convex portion is exposed between the first resin member and the second mold held by the common mold. That is the gist.

前記課題を克服し、所期の目的を達成するため、本発明に係る型装置は、
表側へ突出する凸状部に対応して裏側へ開口する凹状部が形成された第１樹脂部材と、前記凸状部の頂部分が露出するように該第１樹脂部材の表側に重ねて配置された第２樹脂部材とを備え、前記第２樹脂部材から表側へ露出する前記凸状部の頂部分によって模様を形成する車両用樹脂部材を成形する型装置であって、
前記第１樹脂部材の裏側を規定するように構成され、前記凹状部を規定する型凸部を有する共通型と、
前記第１樹脂部材の表側を規定するように構成され、前記凸状部を規定する型凹部を有する第１型と、
前記共通型に保持された前記第１樹脂部材に形成された前記凸状部の頂部分を被覆する型受け部を有し、前記第２樹脂部材の表側を規定する第２型と、を備え、
前記第１型は、
前記型凹部の底面の中央部に開口するように設けられ、該底面よりも小径に形成されたガス抜き孔と、
前記ガス抜き孔に嵌め合わせて配置され、前記凸状部の頂部分の中央部を規定するピン型面が、該ガス抜き孔の開口縁よりも該ガス抜き孔内へ凹むように形成されたガス抜きピンと、を有し、
前記ガス抜き孔と前記ガス抜きピンとの間を介して、前記共通型と前記第１型との間に画成されるキャビティからガスを排出可能に構成されていることを要旨とする。 In order to overcome the above problems and achieve the intended purpose, the mold device according to the present invention comprises:
A first resin member having a concave portion that opens to the back side corresponding to the convex portion protruding to the front side; and a first resin member disposed on the front side of the first resin member so that a top portion of the convex portion is exposed. A mold device for molding a resin member for a vehicle comprising a second resin member, and a pattern formed by a top portion of the convex portion exposed from the second resin member to the front side,
A common mold that is configured to define a back side of the first resin member and has a mold convex part that defines the concave part;
A first mold configured to define a front side of the first resin member, the mold having a mold concave part that defines the convex part;
A second mold defining a front side of the second resin member, the mold having a mold receiving portion that covers a top portion of the convex portion formed on the first resin member held by the common mold. ,
The first type is
A gas vent hole provided to be opened at the center of the bottom surface of the mold concave portion and formed with a smaller diameter than the bottom surface,
A pin-shaped surface which is arranged to be fitted to the gas vent hole and defines a central portion of a top portion of the convex portion is formed so as to be recessed into the gas vent hole from an opening edge of the gas vent hole. A degassing pin, and
The gist of the present invention is that gas can be discharged from a cavity defined between the common mold and the first mold through a space between the gas vent hole and the gas vent pin.

本発明に係る車両用樹脂部材の製造方法によれば、凸状部における成形不良を防止し得ると共に凸状部からガス抜きした痕跡を判り難くすることができ、得られる車両用樹脂部材において凸状部の頂部分で構成される模様を見栄えよくすることができる。
本発明に係る型装置によれば、凸状部における成形不良を防止し得ると共に凸状部からガス抜きした痕跡を判り難くすることができ、得られる車両用樹脂部材において凸状部の頂部分で構成される模様を見栄えよくすることができる。 ADVANTAGE OF THE INVENTION According to the manufacturing method of the resin member for vehicles which concerns on this invention, while forming defect in a convex part can be prevented, the trace which vented from the convex part can be made hard to understand, and the convex in the resin member for vehicles obtained is obtained. The pattern formed by the top portion of the shape can be made to look good.
ADVANTAGE OF THE INVENTION According to the mold apparatus which concerns on this invention, the molding defect in a convex part can be prevented, and the mark which vented from the convex part can be made hard to understand, and the top part of a convex part in the obtained resin member for vehicles is obtained. Can be made to look good.

本発明の実施例に係るインストルメントパネルを示す概略斜視図である。1 is a schematic perspective view showing an instrument panel according to an embodiment of the present invention. 図１のＡ部拡大図である。It is the A section enlarged view of FIG. 図２のＢ−Ｂ線断面図である。FIG. 3 is a sectional view taken along line BB of FIG. 2. 図２のＣ−Ｃ線断面図である。FIG. 3 is a sectional view taken along line CC of FIG. 2. 実施例の製造過程を示す説明図であり、基材の成形時である。It is explanatory drawing which shows the manufacturing process of an Example, and is at the time of molding of a base material. 実施例の製造過程を示す説明図であり、表皮材の成形時である。It is explanatory drawing which shows the manufacturing process of an Example, and is at the time of molding of a skin material. 図５(ｃ)のＤ部に対応する部位を拡大して示す説明図である。It is explanatory drawing which expands and shows the site | part corresponding to the D section of FIG.5 (c).

次に、本発明に係る車両用樹脂部材の製造方法および型装置につき、好適な実施例を挙げて、添付図面を参照して以下に説明する。なお、車両用樹脂部材として、車両内装部材であるインストルメントパネル１０を例示し、インストルメントパネル１０において、意匠面となる面が向く側を表側といい、他の部材への取り付け面が向く側を裏側と指称する。例えば、インストルメントパネル１０のような車両内装部材であれば、意匠面が向く乗員室側が表側となり、該車両内装部材が取り付けられる車体側が裏側となる。また、スポイラなどのような車両外装部材であれば、意匠面が向く外側が表側となり、該車両外装部材が取り付けられる車体側が裏側となる。   Next, a method of manufacturing a resin member for a vehicle and a molding device according to the present invention will be described below with reference to the accompanying drawings by way of preferred embodiments. In addition, as an example of the vehicle resin member, an instrument panel 10 that is a vehicle interior member is illustrated, and a side of the instrument panel 10 where a surface serving as a design surface faces is referred to as a front side, and a side where an attachment surface to another member faces. Is referred to as the back side. For example, in the case of a vehicle interior member such as the instrument panel 10, the passenger compartment side facing the design surface is the front side, and the vehicle body side to which the vehicle interior member is attached is the back side. Further, in the case of a vehicle exterior member such as a spoiler, the outside facing the design surface is the front side, and the vehicle body side to which the vehicle exterior member is attached is the back side.

図３および図４に示すように、インストルメントパネル(車両内装部材)１０は、複数の凸状部１６が一体的に形成された基材(第１樹脂部材)１２と、この基材１２の表側に重ねて形成され、表面がインストルメントパネル１０の意匠面をなす表皮材(第２樹脂部材)１４とを備えた複層構造である。図１および図２に示すように、インストルメントパネル１０には、表側へ突出するように基材１２に形成された凸状部１６の頂部分１７が、基材１２の表側を覆うように配置された表皮材１４から露出し、インストルメントパネル１０の表側に現れている。これによりインストルメントパネル１０には、複数の凸状部１６の組み合わせまたは凸状部１６単体によって、車室側に現れる模様Ｐが形成されている。例えば、実施例では、複数の凸状部１６の頂部分１７によって、トンボのような模様Ｐが形成され、当該模様Ｐが複数並んでいる(図２参照)。   As shown in FIGS. 3 and 4, an instrument panel (vehicle interior member) 10 includes a base (first resin member) 12 in which a plurality of convex portions 16 are integrally formed, It has a multilayer structure including a skin material (second resin member) 14 which is formed on the front side and whose surface forms the design surface of the instrument panel 10. As shown in FIGS. 1 and 2, on the instrument panel 10, a top portion 17 of a convex portion 16 formed on the base material 12 so as to project to the front side is disposed so as to cover the front side of the base material 12. It is exposed from the exposed skin material 14 and appears on the front side of the instrument panel 10. Thus, a pattern P appearing on the vehicle cabin side is formed on the instrument panel 10 by a combination of the plurality of convex portions 16 or a single convex portion 16. For example, in the embodiment, a pattern P like a register mark is formed by the top portions 17 of the plurality of convex portions 16, and a plurality of the patterns P are arranged (see FIG. 2).

図３および図４に示すように、インストルメントパネル１０は、第１の合成樹脂Ｒ１で形成された基材１２と、第２の合成樹脂Ｒ２で形成された表皮材１４とが板厚方向に重なっている。インストルメントパネル１０は、溶融状態から硬化した第２の合成樹脂Ｒ２からなる表皮材１４自身の接合力によって、基材１２と表皮材１４とが一体化されている。基材１２および表皮材１４をなす合成樹脂としては、種々のものを採用し得る。例えば、ポリプロピレン(ＰＰ)やポリエチレン(ＰＥ)等の熱可塑性樹脂、オレフィン系エラストマー(ＴＰＯ)等の熱可塑性エラストマー(ＴＰＥ)など、基材１２と表皮材１４とで同じ素材にしたり、異なる素材を組み合わせたりすることができる。なお、実施例では、基材１２がポリプロピレンで形成され、表皮材１４がオレフィン系エラストマーで形成されている。インストルメントパネル１０は、基材１２と表皮材１４との色が異なっており、模様Ｐが、周りを囲う表皮材１４と異なる色になっている。なお、基材１２および表皮材１４の色は、基材１２および表皮材１４をなす樹脂自体を着色するのが、後で着色する手間を省くことができるので好ましいが、基材１２および表皮材１４を成形した後に着色してもよい。   As shown in FIGS. 3 and 4, the instrument panel 10 includes a base material 12 formed of a first synthetic resin R1 and a skin material 14 formed of a second synthetic resin R2 in a thickness direction. overlapping. In the instrument panel 10, the base material 12 and the skin material 14 are integrated by the bonding force of the skin material 14 itself made of the second synthetic resin R2 cured from the molten state. Various synthetic resins can be used as the base 12 and the skin material 14. For example, the same material or different materials may be used for the base material 12 and the skin material 14, such as a thermoplastic resin such as polypropylene (PP) and polyethylene (PE), and a thermoplastic elastomer (TPE) such as an olefin elastomer (TPO). Can be combined. In the embodiment, the base material 12 is formed of polypropylene, and the skin material 14 is formed of an olefin-based elastomer. In the instrument panel 10, the base material 12 and the skin material 14 have different colors, and the pattern P has a different color from the surrounding skin material 14. The color of the base material 12 and the skin material 14 is preferably such that the resin itself forming the base material 12 and the skin material 14 is colored, since the labor for coloring later can be omitted. After molding 14, it may be colored.

基材１２は、インストルメントパネル１０の裏側全体を構成し、インストルメントパネル１０の剛性を担う硬質な板状体である。図３および図４に示すように、基材１２は、表側が表皮材１４によって被覆される平板状のベース部１２ａと、ベース部１２ａよりも表側へ突出する凸状に形成された凸状部１６とを備えている。また、基材１２は、凸状部１６に対応して設けられ、裏側へ開口する凹状に形成された凹状部２０を備えている。凹状部２０は、肉抜けや肉盗みなどと呼ばれるものであり、ベース部１２ａから突出する凸状部１６を形成することで基材１２において肉厚が増してしまう部分を薄くして、凸状部１６の頂部分１７においてヒケなどの成形不良の発生を防止している。なお、基材１２は、ベース部１２ａ、凸状部１６および凹状部２０等の各部位を型成形により一体的に形成したものであって、全体として同色になっている。   The base material 12 is a hard plate-like body that constitutes the entire back side of the instrument panel 10 and bears the rigidity of the instrument panel 10. As shown in FIGS. 3 and 4, the base material 12 includes a flat base portion 12 a whose front side is covered with a skin material 14, and a convex portion formed to project from the base portion 12 a to the front side. 16 are provided. Further, the base material 12 includes a concave portion 20 that is provided corresponding to the convex portion 16 and that is formed in a concave shape that opens to the back side. The concave portion 20 is called “lightening or burglary”. By forming the convex portion 16 protruding from the base portion 12 a, the portion of the base material 12 where the thickness increases is made thinner, and the convex portion 20 is formed. In the top portion 17 of the portion 16, the occurrence of molding defects such as sink marks is prevented. The base material 12 is formed by integrally forming respective parts such as a base part 12a, a convex part 16 and a concave part 20 by molding, and has the same color as a whole.

図３および図４に示すように、凸状部１６は、ベース部１２ａに連なる根元から頂部分１７へ向かうにつれて細くなり、更に頂部分１７へ向かうにつれて根元側よりも細くなる度合いが小さくなるように形成されている。凸状部１６における対向する外側面１８,１８は、根元側がベース部１２ａから頂部分１７へ向かうにつれて相手側の外側面１８に向けて傾斜した後に、表裏方向に沿う方向へ近づくように傾斜角度を変えるテーパ面となっている。凸状部１６の頂部分１７は、該頂部分１７において該凸状部１６の外側面１８に連なる外縁部１７ａよりも中央部１７ｂが表側へ膨らむように形成され、外縁部１７ａと中央部１７ｂとの間に段部１７ｃが形成されている。頂部分１７の外縁部１７ａおよび中央部１７ｂは、円弧状の曲面で構成されており、頂部分１７は、段部１７ｃで曲面が切り替わっている。頂部分１７は、円形状や棒状などの適宜形状で形成することができ、直径１ｍｍ程度の円形や、幅が１ｍｍ程度の棒状など、サイズを非常に小さく形成し、この小さなサイズの頂部分１７をインストルメントパネル１０の表側に露出させることが可能である。なお、凸状部１６の頂部分１７における段部１７ｃは、すべての凸状部１６に設ける必要はなく、頂部分１７のサイズが小さいものに設ければよく、頂部分１７のサイズが大きいものは省略可能である。実施例では、トンボを模した模様Ｐにおいて、該トンボの頭部になる凸状部１６の頂部分１７が、前述した外縁部１７ａ、中央部１７ｂおよび段部１７ｃからなる形状になっており、トンボの胴体および羽部分になる凸状部１６の頂部分１７は、段部１７ｃがない円弧形状になっている。   As shown in FIGS. 3 and 4, the convex portion 16 becomes thinner from the root connected to the base portion 12 a toward the top portion 17, and further becomes thinner toward the top portion 17 than the root side. Is formed. The opposite outer surfaces 18, 18 of the protruding portion 16 are inclined such that the base side is inclined toward the opposing outer surface 18 as the base portion 12a moves toward the top portion 17, and then approaches the direction along the front and back directions. Is changed. The top portion 17 of the convex portion 16 is formed such that the central portion 17b of the top portion 17 is larger than the outer edge portion 17a connected to the outer surface 18 of the convex portion 16 toward the front side, and the outer edge portion 17a and the central portion 17b are formed. And a step 17c is formed between them. The outer edge portion 17a and the central portion 17b of the top portion 17 are each formed of an arcuate curved surface, and the top portion 17 has a curved surface switched by a step 17c. The top portion 17 can be formed in an appropriate shape such as a circular shape or a rod shape, and is formed in a very small size such as a circle having a diameter of about 1 mm or a rod shape having a width of about 1 mm. Can be exposed on the front side of the instrument panel 10. The step 17c of the top portion 17 of the convex portion 16 does not need to be provided on all the convex portions 16, and may be provided on a small top portion 17 and a large top portion 17 size. Can be omitted. In the embodiment, in the pattern P imitating the register mark, the top portion 17 of the convex portion 16 serving as the head of the register mark has a shape including the above-described outer edge portion 17a, central portion 17b, and step portion 17c, The top portion 17 of the convex portion 16 serving as the body and wing portion of the register mark has an arc shape without the step portion 17c.

図３および図４に示すように、凹状部２０は、各凸状部１６の形成位置に対応して設けられ、基材１２の裏側に開口する有底の凹状で、凸状部１６の頂部分１７を貫通しないように形成されている。また、凹状部２０は、基材１２の裏面からベース部１２ａを越えて凸状部１６へ達する深さで形成されている。従って、凹状部２０は、ベース部１２ａにおける表皮材１４に覆われる表面を越えて、ベース部１２ａから表側へ突出する凸状部１６の内側まで凹んでいる。凹状部２０は、表側から裏側へ向かうにつれて広く開口するよう形成されている。より具体的には、凹状部２０は、凸状部１６の内側に延びる内側面２０ａが、表側から裏側に向かうにつれて広がるように傾斜するテーパになっている。また、凹状部２０は、ベース部１２ａの内側に延びる内側面２０ａが、凸状部１６の内側に延びる内側面２０ａよりも表裏方向に対して急な角度で傾斜している。凹状部２０を画成して対向する内側面２０ａは、表側から裏側へ向かうにつれて互いに離間するように傾斜する形状を基本として、ベース部１２ａに対応する部位でテーパがきつくなるように切り替わる。   As shown in FIG. 3 and FIG. 4, the concave portions 20 are provided corresponding to the positions where the respective convex portions 16 are formed, and are bottomed concave portions that are opened on the back side of the base material 12. It is formed so as not to penetrate the part 17. In addition, the concave portion 20 is formed at a depth that reaches the convex portion 16 from the back surface of the base material 12 beyond the base portion 12a. Therefore, the concave portion 20 is recessed beyond the surface of the base portion 12a covered with the skin material 14 to the inside of the convex portion 16 protruding from the base portion 12a to the front side. The concave portion 20 is formed so as to open wider from the front side to the back side. More specifically, the concave portion 20 is tapered such that the inner side surface 20a extending inside the convex portion 16 is widened from the front side to the back side. In the concave portion 20, the inner surface 20 a extending inside the base portion 12 a is inclined at a steeper angle with respect to the front and back directions than the inner surface 20 a extending inside the convex portion 16. The inner surfaces 20a that define the concave portion 20 and face each other are switched so that the taper becomes tight at a portion corresponding to the base portion 12a based on a shape that is inclined so as to be separated from the front side to the rear side.

図３および図４に示すように、凸状部１６における頂部分１７の段部１７ｃは、凹状部２０の底面２０ｂの周縁よりも外側に設けられている。また、凸状部１６における頂部分１７の外縁部１７ａは、凸状部１６における表裏方向に延在する外側面１８と、該外側面１８に対向して凹状部２０における表裏方向に延在する内側面２０ａとの間の厚みよりも幅が狭く形成されている。   As shown in FIGS. 3 and 4, the step portion 17 c of the top portion 17 of the convex portion 16 is provided outside the periphery of the bottom surface 20 b of the concave portion 20. The outer edge 17a of the top portion 17 of the convex portion 16 extends in the front and back directions of the convex portion 16 and extends in the front and rear directions of the concave portion 20 so as to face the outer surface 18. The width is formed smaller than the thickness between the inner side surface 20a.

図２〜図４に示すように、表皮材１４の表面は、該表皮材１４から表側に露出する凸状部１６の周辺部位に、該凸状部１６に向かうにつれて凹む陥凹部２２が形成されている。表皮材１４おいて、隣り合う凸状部１６に対応した陥凹部２２が互いに繋がって、隣り合う凸状部１６,１６の間、および凸状部１６の両側が凹む溝状に形成されている。なお、表皮材１４の表面には、必要に応じてシボ加工などのパターンが形成される。   As shown in FIGS. 2 to 4, on the surface of the skin material 14, a concave portion 22 that is recessed toward the convex portion 16 is formed in a peripheral portion of the convex portion 16 exposed from the skin material 14 to the front side. ing. In the skin material 14, the concave portions 22 corresponding to the adjacent convex portions 16 are connected to each other, and are formed in a groove shape in which the adjacent convex portions 16, 16 and both sides of the convex portion 16 are concave. . In addition, a pattern such as a graining process is formed on the surface of the skin material 14 as necessary.

次に、前述したインストルメントパネル１０を成形するための型装置３０について説明する。実施例では、インストルメントパネル１０が、基材１２の裏側を規定する共通型３２を共用する二色成形によって製造される。図５に示すように、実施例に係る型装置３０は、第１位置と第２位置との間で移動可能に設けられた共通型３２と、第１位置にある共通型３２に相対するように配置され、該共通型３２に対して相対的に進退移動する第１型３４とを備えている。第１型３４には、基材１２になる第１の合成樹脂Ｒ１を供給するピンゲート(図示せず)が、例えば基材１２のベース部１２ａに対応する部位に設けられ、型閉め時に共通型３２と第１型３４との間に画成される第１キャビティ３５に当該ピンゲートから溶融した第１の合成樹脂Ｒ１が注入される。図６に示すように、型装置３０は、第２位置にある共通型３２に相対するように配置され、該共通型３２に対して相対的に進退移動する第２型３６を備えている。第２型３６には、表皮材１４になる第２の合成樹脂Ｒ２を供給するピンゲート(図示せず)が適宜部位に設けられ、型閉め時に共通型３２と第２型３６との間に画成される第２キャビティ３７に当該ピンゲートから溶融した第２の合成樹脂Ｒ２が注入される。なお、実施例では、第１型３４および第２型３６が固定されて、共通型３２が第１位置と第２位置との間で移動すると共に、相対する第１型３４または第２型３６に対して型閉めまたは型開きするように移動する。   Next, a mold device 30 for molding the instrument panel 10 described above will be described. In the embodiment, the instrument panel 10 is manufactured by two-color molding that shares a common mold 32 that defines the back side of the substrate 12. As shown in FIG. 5, the mold device 30 according to the embodiment is opposed to the common mold 32 movably provided between the first position and the second position and the common mold 32 at the first position. And a first mold 34 that moves forward and backward relative to the common mold 32. In the first mold 34, a pin gate (not shown) for supplying the first synthetic resin R1 to be the base material 12 is provided, for example, at a portion corresponding to the base portion 12a of the base material 12, and a common mold is provided when the mold is closed. The first synthetic resin R1 melted from the pin gate is injected into the first cavity 35 defined between the first mold 32 and the first mold 34. As shown in FIG. 6, the mold device 30 includes a second mold 36 that is disposed so as to face the common mold 32 at the second position, and moves relatively to the common mold 32. A pin gate (not shown) for supplying the second synthetic resin R2 to be the skin material 14 is provided at an appropriate portion of the second mold 36, and an image is formed between the common mold 32 and the second mold 36 when the mold is closed. The second synthetic resin R2 melted from the pin gate is injected into the second cavity 37 formed. In the embodiment, the first mold 34 and the second mold 36 are fixed, the common mold 32 moves between the first position and the second position, and the first mold 34 or the second mold 36 facing each other. Move to close or open the mold.

図５に示すように、基材１２の裏側を規定する共通型３２は、基材１２の裏側に設けられる凹状部２０を規定する型凸部３８を有し、型凸部３８が基材１２のベース部１２ａの裏面を規定する型面より突出している。また、基材１２の表側を規定する第１型３４は、基材１２の表側に設けられる凸状部１６を規定する型凹部４０を有し、型凹部４０が基材１２のベース部１２ａの表面を規定する型面より凹んでいる。図６に示すように、表皮材１４の表側を規定する第２型３６は、表皮材１６から表側に露出する凸状部１６の頂部分１７を被覆する型受け部４２を有している。   As shown in FIG. 5, the common mold 32 that defines the back side of the base 12 has a mold projection 38 that defines the concave portion 20 provided on the back side of the base 12. Project from the mold surface that defines the back surface of the base portion 12a. The first mold 34 that defines the front side of the base 12 has a mold recess 40 that defines the convex portion 16 provided on the front side of the base 12, and the mold recess 40 is formed of the base 12 a of the base 12. It is recessed from the mold surface that defines the surface. As shown in FIG. 6, the second mold 36 that defines the front side of the skin material 14 has a mold receiving portion 42 that covers the top portion 17 of the convex portion 16 exposed from the skin material 16 to the front side.

図５に示すように、第１型３４は、型凹部４０の底面よりも小径に形成されたガス抜き孔４４を有している。ガス抜き孔４４は、型凹部４０の底面の中央部に開口するように設けられている。また、第１型３４は、ガス抜き孔４４に嵌め合わせて配置されたガス抜きピン４６を有している。ガス抜きピン４６は、凸状部１６の頂部分１７の中央部を規定するピン型面４６ａが、ガス抜き孔４４の開口縁よりも該ガス抜き孔４４内へ凹むように形成されている(図７参照)。第１型３４は、ガス抜き孔４４とガス抜きピン４６との間を介して、共通型３２と第１型３４との間に画成される第１キャビティ３５から該第１キャビティ３５の空気を含むガスを排出可能に構成されている。ガス抜き孔４４は、共通型３２において凹状部２０の底面２０ｂを規定する型凸部３８の先端よりも大きく形成されている。また、第１型３４における型凹部４０の底面においてガス抜き孔４４よりも外側部分の幅が、共通型３２における型凹部４０の側面と第１型３４における型凸部３８の側面との間隔よりも小さく設定されている。   As shown in FIG. 5, the first mold 34 has a gas vent hole 44 formed with a smaller diameter than the bottom surface of the mold recess 40. The gas vent hole 44 is provided so as to open at the center of the bottom surface of the mold concave portion 40. In addition, the first mold 34 has a gas vent pin 46 arranged to be fitted into the gas vent hole 44. The gas vent pin 46 is formed such that a pin-shaped surface 46a that defines the center of the top portion 17 of the convex portion 16 is recessed into the gas vent hole 44 from the opening edge of the gas vent hole 44 (see FIG. 4). (See FIG. 7). The first mold 34 has a first cavity 35 defined between the common mold 32 and the first mold 34 through a space between the gas vent hole 44 and the gas vent pin 46. It is configured to be able to discharge gas containing. The gas vent hole 44 is formed to be larger than the tip of the mold projection 38 that defines the bottom surface 20 b of the concave portion 20 in the common mold 32. The width of the bottom of the mold recess 40 in the first mold 34 outside the gas vent hole 44 is larger than the distance between the side of the mold recess 40 in the common mold 32 and the side of the mold protrusion 38 in the first mold 34. Is also set small.

次に、前述した型装置３０を用いたインストルメントパネル１０の製造方法について説明する。共通型３２と第１型３４とを型閉めすることで(図５(ａ)参照)、共通型３２と第１型３４との間に基材１２に合わせた第１キャビティ３５が画成される(図５(ｂ)参照)。第１キャビティ３５に、図示しないピンゲートから圧力をかけつつ第１の合成樹脂Ｒ１を注入するインジェクション成形を行う(図５(ｃ)参照)。このとき、凸状部１６の頂部分１７に対応して配置されると共に該頂部分１７よりも小さく設定されたガス抜き孔４４と、ガス抜き孔４４に嵌め合わされたガス抜きピン４６との間からガスを排出しつつ(図７参照)、第１キャビティ３５において、凸状部１６の頂部分１７を、その外縁部１７ａと外縁部１７ａよりも膨らむ中央部１７ｂとの間に段部１７ｃが形成されるように、基材１２を成形する。これにより、基材１２の裏側が共通型３２の型面で規定される一方、基材１２の表側が第１型３４の型面で規定され、凸状部１６が表側に形成されると共に凹状部２０が裏側に形成された基材１２が得られる(図５(ｄ)参照)。基材１２において、凸状部１６における頂部分１７の段部１７ｃは、凹状部２０における底面２０ｂの周縁よりも外側に形成する。また、凸状部１６における頂部分１７の外縁部１７ａを、該凸状部１６における表裏方向に延在する外側面１８と、凹状部２０における表裏方向に延在する内側面２０ａとの間の厚みよりも幅を狭く形成する。   Next, a method of manufacturing the instrument panel 10 using the above-described mold device 30 will be described. By closing the common mold 32 and the first mold 34 (see FIG. 5A), a first cavity 35 corresponding to the base material 12 is defined between the common mold 32 and the first mold 34. (See FIG. 5B). Injection molding for injecting the first synthetic resin R1 into the first cavity 35 while applying pressure from a pin gate (not shown) (see FIG. 5C). At this time, between the gas vent hole 44 which is arranged corresponding to the top portion 17 of the convex portion 16 and is set smaller than the top portion 17, and the gas vent pin 46 fitted in the gas vent hole 44. In the first cavity 35, a step 17c is formed between the outer edge 17a of the first cavity 35 and the central portion 17b bulging more than the outer edge 17a. The substrate 12 is molded as it is formed. As a result, the back side of the base 12 is defined by the mold surface of the common mold 32, while the front side of the base 12 is defined by the mold surface of the first mold 34, and the convex portions 16 are formed on the front side and are concave. The substrate 12 having the portion 20 formed on the back side is obtained (see FIG. 5D). In the base member 12, the step portion 17 c of the top portion 17 of the convex portion 16 is formed outside the periphery of the bottom surface 20 b of the concave portion 20. The outer edge 17a of the top portion 17 of the convex portion 16 is formed between the outer surface 18 of the convex portion 16 extending in the front and back direction and the inner surface 20a of the concave portion 20 extending in the front and back direction. The width is formed smaller than the thickness.

前記共通型３２において型凸部３８を凹状部２０に嵌め合わせて保持した状態で、共通型３２に基材１２が残った状態になるように第１型３４を外す(図５(ｄ)参照)。共通型３２を移動して第２型３６に対向配置し(図６(ａ)参照)、共通型３２と第２型３６とを型閉めすることで、共通型３２に保持された基材１２と第２型３６との間に表皮材１４に合わせた第２キャビティ３７が画成される(図６(ｂ)参照)。共通型３２と第２型３６とを型閉めすることで、第２型３６に凸状部１６の頂部分１７に合わせて設けられた型受け部４２によって、該頂部分１７がシールされる。そして、凸状部１６の頂部分１７を型受け部４２でシールした状態で、第２キャビティ３７に第２の合成樹脂Ｒ２を、図示しないピンゲートから圧力を加えつつ注入し、表皮材１４をインジェクション成形する(図６(ｃ)参照)。第２の合成樹脂Ｒ２を第２キャビティ３７内で硬化させることで、共通型３２に保持された基材１２と第２型３６との間において、凸状部１６の頂部分１７が露出するように、表皮材１４が成形される(図６(ｄ)参照)。このように、二色成形により、意匠面に凸状部１６の頂部分１７が露出すると共に、凸状部１６に合わせて凹状部２０が形成されたインストルメントパネル１０が得られる。   In the common mold 32, the first mold 34 is removed so that the base 12 remains in the common mold 32 in a state where the mold convex part 38 is fitted and held in the concave part 20 (see FIG. 5D). ). The common mold 32 is moved so as to face the second mold 36 (see FIG. 6A), and the common mold 32 and the second mold 36 are closed to close the base material 12 held by the common mold 32. A second cavity 37 corresponding to the skin material 14 is defined between the second mold 36 and the second mold 36 (see FIG. 6B). By closing the common mold 32 and the second mold 36, the top portion 17 is sealed by the mold receiving portion 42 provided on the second mold 36 so as to match the top portion 17 of the convex portion 16. Then, with the top portion 17 of the convex portion 16 sealed with the mold receiving portion 42, the second synthetic resin R2 is injected into the second cavity 37 while applying pressure from a pin gate (not shown), and the skin material 14 is injected. It is molded (see FIG. 6 (c)). By curing the second synthetic resin R2 in the second cavity 37, the top portion 17 of the convex portion 16 is exposed between the base 12 held by the common mold 32 and the second mold 36. Then, the skin material 14 is formed (see FIG. 6D). Thus, the instrument panel 10 in which the top portion 17 of the convex portion 16 is exposed on the design surface and the concave portion 20 is formed in accordance with the convex portion 16 by the two-color molding is obtained.

前述したように基材１２を成形する際に、凸状部１６の頂部分１７に対応して設けられたガス抜き孔４４から、第１キャビティ３５内の空気を含むガスを排出し得るので、ガスによって頂部分１７が欠けてしまうショートショットの発生を防止することができる。基材１２は、凸状部１６に合わせて形成する凹状部２０によって、第１キャビティ３５において凸状部１６に対応する部分が狭くなる。このため、凸状部１６におけるベース部１２ａに連なる根元から頂部分１７に向けて第１の合成樹脂Ｒ１が流動するので、頂部分１７にガスが集中し易いが、頂部分１７に対応して配置されたガス抜き孔４４からガスを適切に排出し得る。特に、凸状部１６の頂部分１７のサイズが小さくなるほど、前記問題が顕著になるので、本開示のように頂部分１７に対応してガス抜きを行うと効果的である。   As described above, when the base material 12 is formed, the gas including air in the first cavity 35 can be discharged from the gas vent holes 44 provided corresponding to the top portions 17 of the convex portions 16, The occurrence of a short shot in which the top portion 17 is chipped by the gas can be prevented. In the base material 12, a portion corresponding to the convex portion 16 in the first cavity 35 is narrowed by the concave portion 20 formed according to the convex portion 16. For this reason, since the first synthetic resin R1 flows from the base connected to the base portion 12a in the convex portion 16 toward the top portion 17, the gas is easily concentrated on the top portion 17, but the gas is easily concentrated on the top portion 17. Gas can be appropriately discharged from the disposed gas vent hole 44. In particular, as the size of the top portion 17 of the convex portion 16 becomes smaller, the above problem becomes more remarkable. Therefore, it is effective to perform degassing corresponding to the top portion 17 as in the present disclosure.

前述したように、頂部分１７に対応して配置されたガス抜き孔４４からガス抜きしつつ基材１２を成形すると、頂部分１７にガス抜き孔４４に由来する痕跡が残ることがあり、インストルメントパネル１０の表側に現れる頂部分１７において当該痕跡が目立つことは好ましくない。第１型３４は、頂部分１７を規定する型凹部４０の底面よりもガス抜き孔４４が小径であると共に、ガス抜き孔４４に嵌め合わせて配置されたガス抜きピン４６における第１キャビティ３５に臨むピン型面４６ａが、ガス抜き孔４４の開口縁よりもガス抜き孔４４の内側へ凹むように形成されている。これにより、型凹部４０およびピン型面４６ａで成形される凸状部１６の頂部分１７は、第１キャビティ３５を広げるように凹むピン型面４６ａによって中央部１７ｂが、型凹部４０の底面におけるガス抜き孔４４の外側部分で成形される外縁部１７ａよりも表側へ膨らむように成形される。そして、頂部分１７には、ガス抜き孔４４の開口縁に対応して、外縁部１７ａと該外縁部１７ａよりも表側へ膨らむ中央部１７ｂとの間に段部１７ｃが形成される。このように頂部分１７を形成することで、ガス抜き孔４４に由来する痕跡を、凹んだ段部１７ｃとしてコントロールすることができ、頂部分１７において目立たなくすることができる。従って、前述した型装置３０および製造方法によれば、凸状部１６における成形不良を防止し得ると共に凸状部１６からガス抜きした痕跡を判り難くすることができ、得られるインストルメントパネル１０において凸状部１６の頂部分１７で構成される模様Ｐを見栄えよくすることができる。   As described above, when the base material 12 is formed while degassing from the gas vent holes 44 arranged corresponding to the top portion 17, traces derived from the gas vent holes 44 may remain on the top portion 17, and It is not preferable that the trace is conspicuous at the top portion 17 that appears on the front side of the mentment panel 10. The first mold 34 has a gas vent hole 44 having a smaller diameter than the bottom surface of the mold concave portion 40 that defines the top portion 17, and has a first cavity 35 in a gas vent pin 46 arranged to be fitted in the gas vent hole 44. The facing pin-shaped surface 46 a is formed so as to be recessed inside the gas vent hole 44 from the opening edge of the gas vent hole 44. As a result, the top portion 17 of the convex portion 16 formed by the mold concave portion 40 and the pin mold surface 46 a has the central portion 17 b formed by the pin mold surface 46 a that is recessed so as to expand the first cavity 35. It is formed so as to bulge outward from the outer edge portion 17a formed at the outer portion of the gas vent hole 44. The top portion 17 has a stepped portion 17c corresponding to the opening edge of the gas vent hole 44 between the outer edge portion 17a and the central portion 17b bulging to the front side more than the outer edge portion 17a. By forming the top portion 17 in this manner, a trace originating from the gas vent hole 44 can be controlled as a concave step portion 17c, and the top portion 17 can be made inconspicuous. Therefore, according to the mold device 30 and the manufacturing method described above, it is possible to prevent molding defects in the convex portion 16 and to make it difficult to see traces of degassing from the convex portion 16. It is possible to make the pattern P formed by the top portion 17 of the convex portion 16 look good.

第１型３４においてガス抜き孔４４は、基材１２における凹状部２０の底面２０ｂを規定する型凸部３８の先端よりも大きく形成されている。このため、得られる基材１２は、段部１７ｃが凹状部２０における底面２０ｂの周縁よりも外側に形成されることになる。これにより、段部１７ｃを形成することによって、第１キャビティ３５において凸状部１６に対応する部分が狭くなることを抑えることができ、第１の合成樹脂Ｒ１の流動を阻害することを防止できる。よって、見栄えのよい頂部分１７を得ることができる。   In the first mold 34, the gas vent hole 44 is formed to be larger than the tip of the mold convex portion 38 that defines the bottom surface 20 b of the concave portion 20 in the base 12. Therefore, in the obtained base material 12, the step portion 17c is formed outside the peripheral edge of the bottom surface 20b in the concave portion 20. Thus, by forming the step portion 17c, it is possible to prevent the portion corresponding to the convex portion 16 in the first cavity 35 from being narrowed, and to prevent the flow of the first synthetic resin R1 from being hindered. . Therefore, the top portion 17 with good appearance can be obtained.

第１型３４は、型凹部４０の底面においてガス抜き孔４４よりも外側部分の幅が、型凹部４０の側面と型凸部３８の側面との間隔よりも小さく設定されている。このため、凸状部１６おける頂部分１７の外縁部１７ａを、凸状部１６における表裏方向に延在する外側面１８と、凹状部２０における表裏方向に延在する内側面２０ａとの間の厚みよりも幅を狭く形成することができる。これにより、段部１７ｃを形成することによって、第１キャビティ３５において凸状部１６に対応する部分が狭くなることを抑えることができ、第１の合成樹脂Ｒ１の流動を阻害することを防止できる。よって、見栄えのよい頂部分１７を得ることができる。   In the first mold 34, the width of a portion outside the gas vent hole 44 on the bottom surface of the mold concave portion 40 is set to be smaller than the distance between the side surface of the mold concave portion 40 and the side surface of the mold convex portion 38. For this reason, the outer edge 17 a of the top portion 17 of the convex portion 16 is formed between the outer surface 18 of the convex portion 16 extending in the front and back direction and the inner surface 20 a of the concave portion 20 extending in the front and back direction. The width can be formed smaller than the thickness. Thus, by forming the step portion 17c, it is possible to prevent the portion corresponding to the convex portion 16 in the first cavity 35 from being narrowed, and to prevent the flow of the first synthetic resin R1 from being hindered. . Therefore, the top portion 17 with good appearance can be obtained.

（変更例）
前述した実施例に限らず、例えば以下のようにも変更可能である。
(１)車両内装部材としては、インストルメントパネルに限らず、例えば、グローブボックス、ドアトリム、コンソールボックスその他の車両内装部材に、本開示を適用可能である。車両外装部材としては、例えば、リアスポイラ、フロントスポイラ、リアウィング等その他の車体の外側に取り付けられる部材に、本開示を適用可能である。
(２)車両用樹脂部材は、実施例のように全体が基材と表皮材とからなる積層構造で構成されるものに限らず、一部が複層構造で構成されるものであってもよい。例えば、模様を設ける部分に対応した車両用樹脂部材全体よりも小さいサイズの第１樹脂部材と、車両用樹脂部材全体のサイズに合わせた第２樹脂部材との複層構造とし、第２樹脂部材が車両用樹脂部材の剛性を担保する基材および意匠面をなす表皮材の両方の機能を有していてもよい。
(３)模様は、実施例に限らず、例えば、凸状部の頂部分によって糸目を表現した疑似的なステッチ模様であってもよい。この場合、ステッチ模様は、シングルステッチに限らず、ダブルステッチやその他を模したものであってもよい。 (Example of change)
The present invention is not limited to the above-described embodiment, but can be modified as follows, for example.
(1) The present disclosure is not limited to an instrument panel as a vehicle interior member, and the present disclosure is applicable to, for example, a glove box, a door trim, a console box, and other vehicle interior members. As the vehicle exterior member, the present disclosure is applicable to, for example, a member attached to the outside of the vehicle body, such as a rear spoiler, a front spoiler, and a rear wing.
(2) The resin member for a vehicle is not limited to one having a multilayer structure including a base material and a skin material as in the embodiment, and may be a member having a multilayer structure. Good. For example, the second resin member has a multilayer structure of a first resin member smaller in size than the entire vehicle resin member corresponding to the portion where the pattern is provided, and a second resin member adapted to the size of the entire vehicle resin member. May have both functions of a base material for securing the rigidity of the resin member for a vehicle and a skin material forming a design surface.
(3) The pattern is not limited to the embodiment, and may be, for example, a pseudo stitch pattern in which a thread is represented by a top portion of a convex portion. In this case, the stitch pattern is not limited to a single stitch, but may be a double stitch or other imitation.

１０ インストルメントパネル(車両用樹脂部材)，１２ 基材(第１樹脂部材)，
１４ 表皮材(第２樹脂部材)，１６ 凸状部，１７ 頂部分，１７ａ 外縁部，
１７ｂ 中央部，１７ｃ 段部，１８ 外側面，２０ 凹状部，２０ａ 内側面，
２０ｂ 底面，３０ 型装置，３２ 共通型，３４ 第１型，３６ 第２型，
３８ 型凸部，４０ 型凹部，４４ ガス抜き孔，４６ ガス抜きピン，
４６ａ ピン型面 10 instrument panel (resin member for vehicle), 12 base material (first resin member),
14 skin material (second resin member), 16 convex portion, 17 top portion, 17a outer edge portion,
17b central portion, 17c step portion, 18 outer surface, 20 concave portion, 20a inner surface,
20b bottom surface, 30 type device, 32 common type, 34 first type, 36 second type,
38 type convex part, 40 type concave part, 44 gas vent hole, 46 gas vent pin,
46a pin type surface

Claims (6)

表側へ突出する凸状部に対応して裏側へ開口する凹状部が形成された第１樹脂部材と、前記凸状部の頂部分が露出するように該第１樹脂部材の表側に重ねて配置された第２樹脂部材とを備え、前記第２樹脂部材から表側へ露出する前記凸状部の頂部分によって模様を形成する車両用樹脂部材の製造方法であって、
前記凸状部の頂部分に対応して配置されると共に該頂部分よりも小さく設定されたガス抜き孔と、該ガス抜き孔に嵌め合わされたガス抜きピンとの間からガスを排出しつつ、共通型と第１型との間において、前記凸状部の頂部分に、その外縁部と該外縁部よりも表側へ膨らむ中央部との間に段部が形成されるように、前記第１樹脂部材を成形し、
前記共通型に保持された前記第１樹脂部材と第２型との間において、前記凸状部の頂部分が露出するように、前記第１樹脂部材の表側に前記第２樹脂部材を成形する
ことを特徴とする車両用樹脂部材の製造方法。 A first resin member having a concave portion that opens to the back side corresponding to the convex portion protruding to the front side; and a first resin member disposed on the front side of the first resin member so that a top portion of the convex portion is exposed. A method for manufacturing a resin member for a vehicle, comprising: forming a pattern by a top portion of the convex portion exposed to the front side from the second resin member, comprising:
While discharging gas from between a gas vent hole arranged corresponding to the top portion of the convex portion and being set smaller than the top portion and a gas vent pin fitted into the gas vent hole, common gas is discharged. Between the mold and the first mold, the first resin is formed such that a step is formed at the top of the convex portion between an outer edge thereof and a central portion which bulges to the front side more than the outer edge. Mold the member,
The second resin member is formed on the front side of the first resin member so that the top of the convex portion is exposed between the first resin member and the second mold held by the common mold. A method for manufacturing a resin member for a vehicle, comprising: 前記段部を、前記凹状部における底面の周縁よりも外側に形成する請求項１記載の車両用樹脂部材の製造方法。   The method according to claim 1, wherein the step portion is formed outside a peripheral edge of a bottom surface of the concave portion. 前記凸状部における頂部分の外縁部を、前記凸状部における表裏方向に延在する外側面と、前記凹状部における表裏方向に延在する内側面との間の厚みよりも幅を狭く形成する請求項１または２記載の車両用樹脂部材の製造方法。   The outer edge of the top portion of the convex portion is formed to have a width smaller than the thickness between the outer surface of the convex portion extending in the front and back directions and the inner surface of the concave portion extending in the front and back directions. The method for manufacturing a resin member for a vehicle according to claim 1 or 2, wherein 表側へ突出する凸状部に対応して裏側へ開口する凹状部が形成された第１樹脂部材と、前記凸状部の頂部分が露出するように該第１樹脂部材の表側に重ねて配置された第２樹脂部材とを備え、前記第２樹脂部材から表側へ露出する前記凸状部の頂部分によって模様を形成する車両用樹脂部材を成形する型装置であって、
前記第１樹脂部材の裏側を規定するように構成され、前記凹状部を規定する型凸部を有する共通型と、
前記第１樹脂部材の表側を規定するように構成され、前記凸状部を規定する型凹部を有する第１型と、
前記共通型に保持された前記第１樹脂部材に形成された前記凸状部の頂部分を被覆する型受け部を有し、前記第２樹脂部材の表側を規定する第２型と、を備え、
前記第１型は、
前記型凹部の底面の中央部に開口するように設けられ、該底面よりも小径に形成されたガス抜き孔と、
前記ガス抜き孔に嵌め合わせて配置され、前記凸状部の頂部分の中央部を規定するピン型面が、該ガス抜き孔の開口縁よりも該ガス抜き孔内へ凹むように形成されたガス抜きピンと、を有し、
前記ガス抜き孔と前記ガス抜きピンとの間を介して、前記共通型と前記第１型との間に画成されるキャビティからガスを排出可能に構成されている
ことを特徴とする型装置。 A first resin member having a concave portion that opens to the back side corresponding to the convex portion protruding to the front side; and a first resin member disposed on the front side of the first resin member so that a top portion of the convex portion is exposed. A mold device for molding a resin member for a vehicle comprising a second resin member, and a pattern formed by a top portion of the convex portion exposed from the second resin member to the front side,
A common mold that is configured to define a back side of the first resin member and has a mold convex part that defines the concave part;
A first mold configured to define a front side of the first resin member, the mold having a mold concave part that defines the convex part;
A second mold that has a mold receiving portion that covers a top portion of the convex portion formed on the first resin member held by the common mold, and that defines a front side of the second resin member. ,
The first type is
A gas vent hole provided to be opened at the center of the bottom surface of the mold concave portion and formed with a smaller diameter than the bottom surface,
A pin-shaped surface which is arranged to be fitted to the gas vent hole and defines a central portion of a top portion of the convex portion is formed so as to be recessed into the gas vent hole from an opening edge of the gas vent hole. A degassing pin, and
A mold apparatus characterized in that gas can be discharged from a cavity defined between the common mold and the first mold through a space between the gas vent hole and the gas vent pin. 前記ガス抜き孔は、前記凹状部の底面を規定する前記型凸部の先端よりも大きく形成されている請求項４記載の型装置。   The mold device according to claim 4, wherein the gas vent hole is formed larger than a tip of the mold convex portion that defines a bottom surface of the concave portion. 前記型凹部の底面において前記ガス抜き孔よりも外側部分の幅が、前記型凹部の側面と前記型凸部の側面との間隔よりも小さく設定されている請求項４または５記載の型装置。   The mold device according to claim 4, wherein a width of a portion of the bottom surface of the mold recess outside the gas vent hole is set to be smaller than a distance between a side surface of the mold recess and a side surface of the mold protrusion.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003305750A (en) * 2002-04-17 2003-10-28 Fuji Photo Film Co Ltd Resin molded article
JP2007230212A (en) * 2006-01-31 2007-09-13 Daiichi Seiko Kk Resin sealing mold, resin sealing device, and resin sealing method
JP2014008707A (en) * 2012-06-29 2014-01-20 Inoac Corp Method for producing resin molding

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003305750A (en) * 2002-04-17 2003-10-28 Fuji Photo Film Co Ltd Resin molded article
JP2007230212A (en) * 2006-01-31 2007-09-13 Daiichi Seiko Kk Resin sealing mold, resin sealing device, and resin sealing method
JP2014008707A (en) * 2012-06-29 2014-01-20 Inoac Corp Method for producing resin molding

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