JPH09174599A - Two-color molding of panel - Google Patents

Two-color molding of panel

Info

Publication number
JPH09174599A
JPH09174599A JP7334658A JP33465895A JPH09174599A JP H09174599 A JPH09174599 A JP H09174599A JP 7334658 A JP7334658 A JP 7334658A JP 33465895 A JP33465895 A JP 33465895A JP H09174599 A JPH09174599 A JP H09174599A
Authority
JP
Japan
Prior art keywords
molding
primary
molded
color
mold
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
JP7334658A
Other languages
Japanese (ja)
Inventor
Eiichi Tsunoda
田 栄 一 角
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP7334658A priority Critical patent/JPH09174599A/en
Publication of JPH09174599A publication Critical patent/JPH09174599A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0025—Opaque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0026—Transparent

Abstract

PROBLEM TO BE SOLVED: To provide a two-color molding method of a panel wherein an opaque primary molded part is not eluted to a secondary molded part having a transparent color at a time of secondary molding. SOLUTION: A primary molded part 1 is molded by a cavity mold 4 and a core mold 3A having a projection part 3a provided to the part becoming a display part thereof and subsequently carried to a secondary mold to integrally mold a secondary molded part 2A. An injection gate of secondary molding is provided so as to be turned toward the peripheral part avoiding the display part. The resin subjected to injection molding by secondary molding has an m.p. lower than that of the resin subjected to injection molding by primary molding.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は、例えば、ＡＶ、Ｏ
Ａ機器等の表示部に使用されるパネルを、２色成形機に
より、１次成形でパネルの周辺部を構成する１次成形部
分を不透明色樹脂で射出成形し、その１次成形部分を２
次成形型に運び、２次成形でその１次成形部分を覆う上
層部および中央の表示部を構成する２次成形部分を透明
色樹脂を射出して１次成形部分と一体に成形するパネル
の２色成形方法に関する。TECHNICAL FIELD The present invention relates to, for example, AV, O
A panel used for the display part of equipment A, etc. is injection-molded by a two-color molding machine with an opaque resin to form a primary molding part that constitutes the peripheral part of the panel by primary molding.
Of the panel which is carried to the secondary molding die and which is molded integrally with the primary molding portion by injecting the transparent color resin into the secondary molding portion constituting the upper layer portion covering the primary molding portion and the central display portion by the secondary molding. It relates to a two-color molding method.

【０００２】[0002]

【従来の技術】例えば、ＡＶ、ＯＡ機器等の表示部に使
用されるパネル１０は、図６および図７に示すように上
下２層を一体に成形した成形品で、上方から見ると図６
のように中央の表示部Ｄは透明色樹脂で成形されて下方
にある表示体１５の表示を透過表示することができ、ま
た、その周辺部Ｅは不透明色樹脂が裏打ち成形されてい
る。すなわち、図７にその断面を示すように、不透明色
（黒色が多い）の下層Ｌは中央の表示部Ｄを除いた形で
成形され、その上に透明色の上層Ｕが成形されて中央の
表示部Ｄは上層Ｕの１層のみで裏打ちなしになってい
る。2. Description of the Related Art For example, a panel 10 used for a display portion of AV and OA equipment is a molded product in which upper and lower two layers are integrally molded as shown in FIGS.
As described above, the central display portion D is formed of a transparent color resin so that the display of the display body 15 below can be transparently displayed, and the peripheral portion E is lined with an opaque color resin. That is, as shown in the cross section in FIG. 7, the lower layer L of opaque color (mostly black) is formed in a shape excluding the central display portion D, and the upper layer U of transparent color is formed on the lower layer L to form a central portion. The display portion D is not lined with only one layer of the upper layer U.

【０００３】次に、従来、実施されているこのパネル１
０の２色成形方式による成形方法を説明する。１次成形
においては、図８に示すように、コア型１３と１次成形
キャビ型１４とによって１次成形部分１である下層にな
る周辺部Ｅが不透明色樹脂で成形される。この１次成形
キャビ型１４の表示部Ｄになる部分には、コア型１３に
当接する高さの突起部分１４ａが設けられており、これ
により１次成形ではパネル１０の表示部Ｄを除いた形で
成形される。Next, this panel 1 which has been conventionally implemented
A molding method according to the two-color molding method of 0 will be described. In the primary molding, as shown in FIG. 8, the core mold 13 and the primary molding cavity mold 14 mold the lower peripheral part E which is the primary molding part 1 with the opaque color resin. A projection portion 14a having a height abutting on the core mold 13 is provided in a portion which becomes the display portion D of the primary molding cabinet mold 14, whereby the display portion D of the panel 10 is excluded in the primary molding. Molded in shape.

【０００４】そして、この１次成形部分１は、２次成形
キャビ型１５に送られ、図９に示すように２次成形部分
１２である１次成形部分１を覆う上層部分と中央の表示
部Ｄとが透明色樹脂で射出成形され、取り出される。な
お、コア型１３は１次成形、２次成形とも、共通形状で
ある。また、符号ＰＬはパーティングラインを示してい
る。Then, the primary molding portion 1 is sent to a secondary molding cavity mold 15 and, as shown in FIG. 9, an upper layer portion covering the primary molding portion 1 which is the secondary molding portion 12 and a central display portion. D and D are injection-molded with a transparent resin and taken out. The core mold 13 has a common shape in both the primary molding and the secondary molding. The symbol PL indicates a parting line.

【０００５】この２色成形方法では、不透明色の１次成
形部分１の上に２次成形部分１２の透明色樹脂が、図１
０に示すゲート１７から射出されている。しかし、図１
１に示す断面図の符号Ｋで示す部分は、２次成形キャビ
型１５内に突出した形になっているので、２次成形で射
出された樹脂の熱を受けて１次成形部分１の一部が溶か
され、透明色の２次成形部分１２に図１０に符号Ｗで示
すように溶け込み、商品価値を損ねるという問題が生じ
る。In this two-color molding method, the transparent color resin of the secondary molding part 12 is formed on the opaque primary molding part 1 as shown in FIG.
It is ejected from the gate 17 shown in FIG. However, FIG.
The portion indicated by reference numeral K in the cross-sectional view shown in FIG. 1 has a shape protruding into the secondary molding cabinet mold 15, and therefore, the heat of the resin injected in the secondary molding receives the heat of the primary molding portion 1. The part is melted and melted into the transparent secondary molding part 12 as indicated by the symbol W in FIG. 10, which causes a problem that the commercial value is impaired.

【０００６】[0006]

【発明が解決しようとする課題】したがって、本発明
は、２次成形の際に不透明色の１次成形部分が、透明色
の２次成形部分に溶け込まないパネルの２色成形方法を
提供することを目的としている。SUMMARY OF THE INVENTION Accordingly, the present invention provides a two-color molding method for a panel in which the opaque primary molding portion does not melt into the transparent secondary molding portion during the secondary molding. It is an object.

【０００７】[0007]

【課題を解決するための手段】本発明によれば、２色成
形機により、１次成形でパネルの周辺部を構成する１次
成形部分を不透明色樹脂で射出成形し、その１次成形部
分を２次成形型に運び、２次成形でそのパネルの１次成
形部分を覆う上層部および中央の表示部を構成する２次
成形部分を透明色樹脂を射出して１次成形部分と一体に
成形するパネルの２色成形方法において、１次成形キャ
ビ型と前記表示部になる部分に突起部を設けたコア型と
で１次成形部分を成形し、次に２次成形部分を一体成形
する。According to the present invention, a two-color molding machine is used to perform injection molding of a primary molding portion constituting a peripheral portion of a panel by primary molding with an opaque color resin, and the primary molding portion To the secondary molding die, and the secondary molding portion forming the upper layer portion and the central display portion covering the primary molding portion of the panel by the secondary molding is injected with the transparent color resin to be integrated with the primary molding portion. In the two-color molding method for a panel to be molded, a primary molding part is molded by a primary molding cabinet mold and a core mold in which a protrusion is provided on the display part, and then the secondary molding part is integrally molded. .

【０００８】または、前記１次成形のコア型に設けた突
起部の高さを前記１次成形部分の厚さより上方とする。Alternatively, the height of the protrusion provided on the core die for the primary molding is set higher than the thickness of the primary molding portion.

【０００９】さらに、２次成形の射出ゲートが前記表示
部を避けた周辺部の方向に向けて設けられた型で射出成
形する。Further, the injection molding of the secondary molding is carried out by a mold provided in the direction of the peripheral portion avoiding the display portion.

【００１０】さらに、前記２次成形で射出成形する樹脂
は、前記１次成形で射出成形する樹脂より融点の低い樹
脂である。Further, the resin injection-molded in the secondary molding has a lower melting point than the resin injection-molded in the primary molding.

【００１１】[0011]

【発明の実施の形態】以下、図面を参照して本発明の実
施の形態を説明する。Embodiments of the present invention will be described below with reference to the drawings.

【００１２】図１および図２には本発明の一実施形態が
示されている。図１は１次成形の態様を示しており、コ
ア型３Ａ側には、表示部Ｄになる部分に突起部３ａが１
次成形部分１の厚さに相当する高さで対向する１次成形
キャビ型４Ａに当接して設けられている。このコア型３
Ａとキャビ型４Ａとの空間に不透明色樹脂が射出され、
パネル１０の中央の表示部Ｄとなる部分は突起部３ａに
より除かれた形で１次成形部分１が成形される。1 and 2 show an embodiment of the present invention. FIG. 1 shows an aspect of primary molding, in which a protrusion 3a is formed on the core die 3A side at a portion to be a display portion D.
It is provided in contact with the primary molding cavity mold 4A facing at a height corresponding to the thickness of the secondary molding portion 1. This core type 3
Opaque resin is injected into the space between A and the mold 4A,
The primary molding portion 1 is molded in such a manner that the central portion of the panel 10 that serves as the display portion D is removed by the protrusion 3a.

【００１３】次に、１次成形部分１は，図２に示すよう
に２次成形キャビ型５Ａに送られ、２次成形キャビ型５
Ａとコア型３Ａとで、２次成形部分２Ａである表示部Ｄ
および１次成形品を覆う上層部分とが透明色樹脂で一体
に成形され、そして取り出される。Next, the primary molding part 1 is sent to a secondary molding cabinet mold 5A as shown in FIG.
A and the core mold 3A, the display portion D which is the secondary molding portion 2A
And the upper layer portion covering the primary molded product is integrally molded with a transparent resin and then taken out.

【００１４】この発明によれば、２次成形部分２Ａは、
１次成形部分１を覆う上層部が、中央の表示部Ｄも同一
厚さになっており、図１１に符号Ｋで示した１次成形部
分の２次成形部分２Ａへの突出がないので、２次成形射
出による１次成形部分１の透明色部分への溶け込みが防
止される。According to the present invention, the secondary molding portion 2A is
Since the upper layer portion covering the primary molding portion 1 has the same thickness as the central display portion D, and there is no protrusion of the primary molding portion indicated by the symbol K in FIG. 11 to the secondary molding portion 2A, It is possible to prevent the primary molding portion 1 from melting into the transparent color portion due to the secondary molding injection.

【００１５】また、図３および図４には、第２の発明の
実施形態が示されている。図３に示す１次成形におい
て、コア型３Ｂの表示部Ｄになる部分に設けられた突起
部３ｂは、１次成形部分１の厚みより上方までの高さと
し、対向する１次キャビ型４Ｂには凹部が設けられてい
る。そして、図４に示す２次キャビ型５Ｂではこの表示
部は平になっており、したがって、この２次成形部分２
Ｂの表示部Ｄは、２次成形部分２Ｂの他の部分より薄い
形となって成形される。Also, FIGS. 3 and 4 show an embodiment of the second invention. In the primary molding shown in FIG. 3, the protrusion 3b provided in the portion to be the display portion D of the core mold 3B is set to a height higher than the thickness of the primary molding portion 1 so that the opposing primary mold 4B is Is provided with a recess. Further, in the secondary cabinet mold 5B shown in FIG. 4, the display portion is flat, so that the secondary molded portion 2
The display portion D of B is formed in a shape thinner than the other portions of the secondary molding portion 2B.

【００１６】この第２の発明によれば、図１１に符号Ｋ
で示した１次成形部分は、一層隠された形になり、２次
成形時の溶け込みが防止される。According to the second aspect of the invention, reference numeral K in FIG.
The primary molding portion indicated by (1) has a more concealed shape, and melt-in during secondary molding is prevented.

【００１７】次に、図５は第３の発明の実施形態を示し
ている。２次成形のキャビ型に設けられた２次成形用の
ゲート１７は、周辺方向に寄せられ、その射出の方向を
周辺部Ｅに向けた位置Ｇ１に配設されている。このゲー
ト１７から２次成形の射出が行われると、射出方向には
表示部Ｄは無く、したがって、前記の符号Ｋで示した突
出はなく１次成形部分１の溶け込みを生じない。また、
例え溶け込みがあっても、不透明色の周辺部であって不
具合が生じない。なお、符号Ｇ０は、従来のゲートの位
置を示している。Next, FIG. 5 shows an embodiment of the third invention. The secondary-molding gate 17 provided in the secondary-molding mold is arranged at a position G1 which is moved toward the peripheral direction and whose injection direction is directed to the peripheral portion E. When the secondary molding is injected from the gate 17, there is no display portion D in the injection direction, and therefore, there is no protrusion indicated by the above-mentioned symbol K and the fusion of the primary molding part 1 does not occur. Also,
Even if there is a melt-in, no trouble occurs in the peripheral part of opaque color. The symbol G0 indicates the position of the conventional gate.

【００１８】また、２次成形で射出成形する樹脂を、１
次成形で射出成形する樹脂より融点の低い樹脂とする。
こうして、１次成形の樹脂の融点より低い温度で２次成
形射出を行えば、１次成形部分の溶け込みが防止され
る。Further, the resin to be injection-molded in the secondary molding is 1
The resin has a lower melting point than the resin to be injection-molded in the next molding.
In this way, if the secondary molding injection is performed at a temperature lower than the melting point of the resin for primary molding, melting of the primary molding portion is prevented.

【００１９】そして、以上の各発明は、成形する形状・
仕様により適宜選択組み合わせて実施することができ
る。And, each of the above inventions has a shape
It can be implemented by appropriately selecting and combining according to the specifications.

【００２０】[0020]

【発明の効果】以上説明したように、本発明によれば、
パネルの透明な表示部に、周辺部の不透明色の樹脂が溶
け込むのが防止できる。そして、上記の発明の各項を、
成形品の形状・仕様に適合するよう適宜選択組み合わせ
る事により、より効果的に実施できる。As described above, according to the present invention,
It is possible to prevent the opaque colored resin in the peripheral portion from melting into the transparent display portion of the panel. And, each item of the above invention,
It can be carried out more effectively by appropriately selecting and combining so as to match the shape and specifications of the molded product.

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

【図１】第１の発明の１次成形を示す型の断面図。FIG. 1 is a cross-sectional view of a mold showing the primary molding of the first invention.

【図２】第１の発明の２次成形を示す型の断面図。FIG. 2 is a sectional view of a mold showing the secondary molding of the first invention.

【図３】第２の発明の１次成形を示す型の断面図。FIG. 3 is a cross-sectional view of a mold showing the primary molding of the second invention.

【図４】第３の発明の２次成形を示す型の断面図。FIG. 4 is a sectional view of a mold showing the secondary molding of the third invention.

【図５】第３の発明の実施形態を示す型の上面図。FIG. 5 is a top view of a mold showing an embodiment of the third invention.

【図６】本発明で成形するパネルの上面図。FIG. 6 is a top view of a panel formed by the present invention.

【図７】図６の断面図。FIG. 7 is a sectional view of FIG. 6;

【図８】従来技術による１次成形を示す型の断面図。FIG. 8 is a sectional view of a mold showing a primary molding according to a conventional technique.

【図９】従来技術による２次成形を示す型の断面図。FIG. 9 is a cross-sectional view of a mold showing secondary molding according to a conventional technique.

【図１０】従来技術による不具合の説明図。FIG. 10 is an explanatory diagram of a defect according to a conventional technique.

【図１１】図１０の断面図。11 is a sectional view of FIG.

【符号の説明】[Explanation of symbols]

１・・・１次成形部分 ２Ａ、２Ｂ、１２・・・２次成形部分 ３Ａ、３Ｂ、１３・・・コア型 ３ａ、３ｂ・・・突起部 ４Ａ、４Ｂ、１４・・・１次成形キャビ型 １４ａ・・・突起部 ５Ａ、５Ｂ、１５・・・２次成形キャビ型 １０・・・パネル １６・・・表示体 １７・・・ゲート 1 ... Primary molding part 2A, 2B, 12 ... Secondary molding part 3A, 3B, 13 ... Core mold 3a, 3b ... Projection part 4A, 4B, 14 ... Primary molding cavity Mold 14a ... Protrusions 5A, 5B, 15 ... Secondary molding cabinet mold 10 ... Panel 16 ... Display body 17 ... Gate

Claims (4)

【特許請求の範囲】[Claims] 【請求項１】 ２色成形機により、１次成形でパネルの
周辺部を構成する１次成形部分を不透明色樹脂で射出成
形し、その１次成形部分を２次成形型に運び、２次成形
でそのパネルの１次成形部分を覆う上層部および中央の
表示部を構成する２次成形部分を透明色樹脂を射出して
１次成形部分と一体に成形するパネルの２色成形方法に
おいて、１次成形キャビ型と前記表示部になる部分に突
起部を設けたコア型とで１次成形部分を成形し、次に２
次成形部分を一体成形することを特徴としたパネルの２
色成形方法。1. A two-color molding machine is used to perform injection molding of a primary molding portion forming a peripheral portion of a panel with an opaque color resin in the primary molding, and the primary molding portion is conveyed to a secondary molding die to carry out a secondary molding. In a two-color molding method for a panel, in which a transparent molding resin is injected into a secondary molding portion that constitutes an upper layer portion that covers the primary molding portion of the panel and a central display portion by molding, and is integrally molded with the primary molding portion, The primary molding part is molded by the primary molding cabinet mold and the core mold in which the projection portion is provided on the portion which becomes the display portion, and then
2 of the panel characterized by integrally molding the next molded part
Color molding method. 【請求項２】 前記コア型に設けた突起部の高さを前記
１次成形部分の厚みより上方までとした請求項１記載の
パネルの２色成形方法。2. The two-color molding method for a panel according to claim 1, wherein the height of the protrusion provided on the core mold is set to be higher than the thickness of the primary molding portion. 【請求項３】 ２次成形の射出ゲートが前記表示部を避
けた周辺部の方向に向けて設けられた型で射出成形する
請求項１または請求項２記載のパネルの２色成形方法。3. The two-color molding method for a panel according to claim 1, wherein the injection gate of the secondary molding is injection-molded by a mold provided in a direction of a peripheral portion avoiding the display portion. 【請求項４】 前記２次成形で射出成形する樹脂は、前
記１次成形で射出成形する樹脂より融点の低い樹脂であ
る請求項１ないし請求項３のいずれかに記載のパネルの
２色成形方法。4. The two-color molding for a panel according to claim 1, wherein the resin injection-molded in the secondary molding has a lower melting point than the resin injection-molded in the primary molding. Method.
JP7334658A 1995-12-22 1995-12-22 Two-color molding of panel Pending JPH09174599A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7334658A JPH09174599A (en) 1995-12-22 1995-12-22 Two-color molding of panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7334658A JPH09174599A (en) 1995-12-22 1995-12-22 Two-color molding of panel

Publications (1)

Publication Number Publication Date
JPH09174599A true JPH09174599A (en) 1997-07-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP7334658A Pending JPH09174599A (en) 1995-12-22 1995-12-22 Two-color molding of panel

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Country Link
JP (1) JPH09174599A (en)

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JP2001207062A (en) * 2000-01-25 2001-07-31 Ono Sangyo Kk Thermoplastic resin composition and its molding
EP1177876A1 (en) * 2000-07-31 2002-02-06 Asahi Glass Company Ltd. Vehicle resin window with an integrated border section
JP2011187299A (en) * 2010-03-08 2011-09-22 Koito Mfg Co Ltd Lens of lighting fixture for vehicle
WO2012017554A1 (en) * 2010-08-06 2012-02-09 株式会社クニムネ Production device and production method for two-layer-structured lid having threaded portion
WO2020231253A1 (en) * 2019-05-10 2020-11-19 Heathland Holding B.V. Method and gasket for producing a polymethyl methacrylate plate
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001207062A (en) * 2000-01-25 2001-07-31 Ono Sangyo Kk Thermoplastic resin composition and its molding
EP1177876A1 (en) * 2000-07-31 2002-02-06 Asahi Glass Company Ltd. Vehicle resin window with an integrated border section
JP2011187299A (en) * 2010-03-08 2011-09-22 Koito Mfg Co Ltd Lens of lighting fixture for vehicle
WO2012017554A1 (en) * 2010-08-06 2012-02-09 株式会社クニムネ Production device and production method for two-layer-structured lid having threaded portion
US11584055B2 (en) 2017-04-21 2023-02-21 Olympus Corporation Two-color molding die, manufacturing method of two-color molded article, and imaging device including optical functional components
WO2020231253A1 (en) * 2019-05-10 2020-11-19 Heathland Holding B.V. Method and gasket for producing a polymethyl methacrylate plate
NL2023107B1 (en) * 2019-05-10 2020-11-30 Heathland Holding B V Method and gasket for producing a polymethyl methacrylate plate
CN114100153A (en) * 2020-11-02 2022-03-01 株式会社万代 Mold member and method for manufacturing mold member
WO2022091844A1 (en) * 2020-11-02 2022-05-05 株式会社バンダイ Model component and model component production method
JP2022073659A (en) * 2020-11-02 2022-05-17 株式会社バンダイ Model component and manufacturing method of model component

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