JP2020049683A - Resin molded member - Google Patents
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- JP2020049683A JP2020049683A JP2018178681A JP2018178681A JP2020049683A JP 2020049683 A JP2020049683 A JP 2020049683A JP 2018178681 A JP2018178681 A JP 2018178681A JP 2018178681 A JP2018178681 A JP 2018178681A JP 2020049683 A JP2020049683 A JP 2020049683A
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- 239000011347 resin Substances 0.000 title claims abstract description 89
- 229920005989 resin Polymers 0.000 title claims abstract description 89
- 239000000463 material Substances 0.000 claims abstract description 44
- 230000002093 peripheral effect Effects 0.000 claims abstract description 31
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 49
- 238000001746 injection moulding Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007591 painting process Methods 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
本発明は、異なる樹脂材料からなる各部分を一体に有する樹脂成形部材に関する。 The present invention relates to a resin molded member integrally having respective portions made of different resin materials.
自動車内部品のインストルメントパネル（instrument panel 以下、「インパネ」と略称する）のような樹脂成形部材を成形する成形技術として、射出成形法が広く用いられている。射出成形法は、固定型と可動型とで形成される空間内に、溶融した樹脂を射出し、固化させることで樹脂成形部材を成形するものである。従来、射出成形法で形成されたインパネに別部品を追加したり塗装することで、色や材質の違いを表現して、意匠性を付与していた。しかしながら、別部品を追加する場合、当該別部品の加工や取り付け工程の追加により製造コストが増加し、また、別部品を追加することで重量が増加するという問題があった。また、塗装する場合も、塗装工程の追加により製造コストが増加するという問題があった。 2. Description of the Related Art Injection molding is widely used as a molding technique for molding a resin molded member such as an instrument panel (hereinafter, abbreviated as "instrument panel") of a part in an automobile. In the injection molding method, a molten resin is injected into a space formed by a fixed die and a movable die, and is solidified to form a resin molded member. 2. Description of the Related Art Conventionally, by adding or painting another part to an instrument panel formed by an injection molding method, a difference in color or material is expressed to impart designability. However, when another component is added, there is a problem that the manufacturing cost increases due to the additional processing and mounting process of the different component, and that the weight increases due to the additional component. Also, in the case of painting, there is a problem that the production cost increases due to the addition of the painting process.
この問題を解消して、製造コストや重量の増加を抑制しつつ意匠性を付与したインパネを成形する方法として、多色成形による射出成形法が知られている。多色成形は、異なる樹脂材料からなる各部分を一体に有する樹脂成形部材を同一金型内で成形するものである。多色成形は、デザイン上の観点から異なる色の樹脂材料を用いたり、強度、耐熱性、コストなどの性質の異なる樹脂材料を用いる場合に利用される。特許文献１には、２種類の樹脂材料を用いる多色（２色）成形が開示されている。 An injection molding method using multicolor molding is known as a method of solving this problem and molding an instrument panel with a design property while suppressing an increase in manufacturing cost and weight. In the multicolor molding, a resin molded member integrally having respective portions made of different resin materials is molded in the same mold. Multicolor molding is used when resin materials of different colors are used from the viewpoint of design or when resin materials having different properties such as strength, heat resistance, and cost are used. Patent Literature 1 discloses multicolor (two-color) molding using two types of resin materials.
しかしながら、インパネの例えば寸法の小さい開口部の周縁に、色の異なる樹脂材料による部分を成形する場合、溶融した樹脂材料を射出するためのゲートを設けることが困難である場合がある。２色成形にはスライド型が用いられるが、当該スライド型の配置スペースを確保する必要があるので、ゲートの配置に制約がある。また、開口部の面積が小さいことで、意匠性に影響を及ぼさないようにゲートを設けることが困難になる。 However, when molding a portion made of a resin material of a different color, for example, around the periphery of an opening portion having a small dimension of the instrument panel, it may be difficult to provide a gate for injecting a molten resin material. A slide mold is used for the two-color molding, but the arrangement of the gate is restricted because it is necessary to secure an arrangement space for the slide mold. In addition, since the area of the opening is small, it is difficult to provide a gate so as not to affect the design.
本発明は上記した事情のもとで考え出されたものであって、多色成形によって寸法の小さい開口部の周縁に異なる樹脂材料による部分を成形した場合でも、ゲートの跡が意匠性に影響を及ぼさない樹脂成形部材を提供することを目的としている。 The present invention has been conceived under the circumstances described above, and even when a portion made of a different resin material is formed around the periphery of an opening having a small size by multicolor molding, the mark of the gate affects the design. It is an object of the present invention to provide a resin molded member that does not exert the effect.
上記課題を解決するため、本発明では、次の技術的手段を講じている。 In order to solve the above problems, the present invention takes the following technical measures.
本発明によって提供される樹脂成形部材は、意匠面、前記意匠面の反対側の面である裏面、および、前記意匠面から前記裏面まで貫通する開口部を有する第１の部分と、前記第１の部分と一体として成形され、かつ、前記第１の部分とは異なる樹脂材料からなる第２の部分とを備え、前記第２の部分は、前記開口部の周縁に形成された周縁部と、前記第１の部分の前記裏面に積層され、かつ、前記周縁部に繋がる積層部と、前記積層部に繋がり、かつ、前記意匠面から露出する露出部とを備えることを特徴とする。 The resin molded member provided by the present invention includes a first surface having a design surface, a back surface opposite to the design surface, and an opening penetrating from the design surface to the back surface; And a second portion made of a resin material different from the first portion, and the second portion is formed integrally with the first portion, and the second portion is formed at the periphery of the opening, It is characterized by comprising a laminated portion laminated on the back surface of the first portion and connected to the peripheral portion, and an exposed portion connected to the laminated portion and exposed from the design surface.
本発明によると、第２の部分において、第１の部分の開口部の周縁に形成された周縁部と、第１の部分の意匠面から露出する露出部とが、第１の部分の裏面に積層される積層部を介して繋がっている。第２の部分は、金型において、露出部が形成される部分にゲートが設けられて、樹脂材料が積層部を介して周縁部に充填されることで、形成される。ゲートの跡が残る露出部は、周縁部から離れた位置に配置でき、他の部材で隠すことができる。また、積層部は第１の部分の裏面に配置される。したがって、寸法の小さい開口部の周縁に第２の部分の周縁部を形成する場合でも、意匠性に影響を及ぼさない。 According to the present invention, in the second portion, the peripheral portion formed on the peripheral portion of the opening of the first portion and the exposed portion exposed from the design surface of the first portion are formed on the back surface of the first portion. They are connected via a laminated portion to be laminated. The second portion is formed by providing a gate at a portion where an exposed portion is formed in a mold and filling a peripheral portion with a resin material via a laminated portion. The exposed part where the trace of the gate remains can be arranged at a position away from the peripheral part, and can be hidden by another member. Further, the laminated portion is disposed on the back surface of the first portion. Therefore, even when the peripheral portion of the second portion is formed on the peripheral portion of the opening having a small size, the design is not affected.
本発明のその他の特徴および利点は、添付図面を参照して以下に行う詳細な説明によって、より明らかとなろう。 Other features and advantages of the present invention will become more apparent from the detailed description given below with reference to the accompanying drawings.
以下、本発明の実施の形態を、図面を参照して具体的に説明する。 Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
図１〜図４は、第１実施形態に係る樹脂成形部材を説明するための図である。図１は、第１実施形態に係る樹脂成形部材１０の概略斜視図である。図２は、樹脂成形部材１０の要部拡大斜視図である。図３（ａ）は、樹脂成形部材１０の要部拡大正面図である。図３（ｂ）は樹脂成形部材１０の要部拡大背面図である。図４（ａ）は、図３（ａ）のＡ−Ａ線に沿う要部拡大断面図である。図４（ｂ）は、図３（ａ）のＢ−Ｂ線に沿う要部拡大断面図である。図４（ｃ）は図３（ａ）のＣ−Ｃ線に沿う要部拡大断面図である。樹脂成形部材１０は、自動車のインパネであり、２色成形の射出成形法によって成形される。樹脂成形部材１０は、第１の部分１１および第２の部分１２を備える。 1 to 4 are views for explaining a resin molded member according to the first embodiment. FIG. 1 is a schematic perspective view of a resin molded member 10 according to the first embodiment. FIG. 2 is an enlarged perspective view of a main part of the resin molded member 10. FIG. 3A is an enlarged front view of a main part of the resin molded member 10. FIG. 3B is an enlarged rear view of a main part of the resin molded member 10. FIG. 4A is an enlarged sectional view of a main part along the line AA in FIG. FIG. 4B is an enlarged cross-sectional view of a main part along line BB of FIG. 3A. FIG. 4C is an enlarged sectional view of a main part along the line CC in FIG. 3A. The resin molded member 10 is an instrument panel of an automobile, and is molded by a two-color injection molding method. The resin molded member 10 includes a first part 11 and a second part 12.
第１の部分１１は、樹脂成形部材１０の大部分を占める。第１の部分１１は、第１の樹脂材料からなり、溶融された第１の樹脂材料が固化されることで形成される。第１の部分１１は、開口部１１ａ、意匠面１１ｂおよび裏面１１ｃを備える。意匠面１１ｂは、搭乗者から見える側の面であり、様々な意匠が施されている。裏面１１ｃは、意匠面１１ｂの反対側の面である。開口部１１ａは、略矩形状の開口であり、意匠面１１ｂから裏面１１ｃまで貫通している。開口部１１ａは、エアコンの送風口（いわゆるサイドレジスタ）であり、長辺が１０ｃｍ程度の小さな開口である。なお、開口部１１ａの寸法は限定されない。図２〜図４では、運転席側の（図１において右側に配置されている）開口部１１ａを示している。 The first portion 11 occupies most of the resin molded member 10. The first portion 11 is made of a first resin material, and is formed by solidifying the molten first resin material. The first portion 11 includes an opening 11a, a design surface 11b, and a back surface 11c. The design surface 11b is a surface that can be seen by a passenger, and has various designs. The back surface 11c is a surface on the opposite side of the design surface 11b. The opening 11a is a substantially rectangular opening and penetrates from the design surface 11b to the back surface 11c. The opening 11a is a blowing opening (so-called side register) of the air conditioner, and is a small opening having a long side of about 10 cm. The size of the opening 11a is not limited. 2 to 4 show the opening 11a on the driver's seat side (disposed on the right side in FIG. 1).
第２の部分１２は、第１の部分１１の開口部１１ａの周縁の全周にわたって形成されており、第１の部分１１と一体として形成されている。第２の部分１２は、第１の樹脂材料とは異なる第２の樹脂材料からなり、溶融された第２の樹脂材料が固化されることで形成される。樹脂成形部材１０は、第１の部分１１と第２の部分１２とが一体となっており、２色成形の射出成形法によって、一組の金型内で成形される。第２の部分１２は、周縁部１２ａ、積層部１２ｂ、露出部１２ｃ、および取付部１２ｄを備える。 The second portion 12 is formed over the entire periphery of the periphery of the opening 11 a of the first portion 11, and is formed integrally with the first portion 11. The second portion 12 is made of a second resin material different from the first resin material, and is formed by solidifying the molten second resin material. In the resin molded member 10, the first portion 11 and the second portion 12 are integrated, and are molded in a set of dies by a two-color injection molding method. The second portion 12 includes a peripheral portion 12a, a laminated portion 12b, an exposed portion 12c, and a mounting portion 12d.
周縁部１２ａは、第１の部分１１の開口部１１ａの周縁に形成されている部分であり、正面視において略矩形の環形状をなす。積層部１２ｂは、周縁部１２ａに繋がっており、第１の部分１１の裏面１１ｃに積層されている。したがって、積層部１２ｂは、正面視において第１の部分１１に隠れており、搭乗者からは見えない。また、積層部１２ｂは、露出部１２ｃにも繋がっている。露出部１２ｃは、周縁部１２ａから離れた位置に配置され、意匠面１１ｂから露出している。露出部１２ｃは、正面視において、略矩形状である。露出部１２ｃは、製造に用いられる金型において、第２の樹脂材料が注入されるゲートが配置される部分に形成される。したがって、露出部１２ｃにはゲートの跡が残っている。露出部１２ｃは、搭乗者から見えないように、他の部材によって隠される。なお、露出部１２ｃの形状および配置位置は限定されない。取付部１２ｄは、積層部１２ｂから裏面１１ｃの向く方向に突出する部分であり、貫通する孔が設けられている。本実施形態では、図３（ｂ）に示すように、４個の取付部１２ｄが設けられている。取付部１２ｄには、エアコンの送風用のダクトが取り付けられる。なお、取付部１２ｄの数および形状は限定されない。 The peripheral part 12a is a part formed on the peripheral part of the opening 11a of the first part 11, and has a substantially rectangular ring shape when viewed from the front. The laminated portion 12b is connected to the peripheral portion 12a and is laminated on the back surface 11c of the first portion 11. Therefore, the stacked portion 12b is hidden by the first portion 11 when viewed from the front, and is not visible to the occupant. Further, the laminated portion 12b is also connected to the exposed portion 12c. The exposed part 12c is arranged at a position away from the peripheral part 12a, and is exposed from the design surface 11b. The exposed part 12c has a substantially rectangular shape when viewed from the front. The exposed portion 12c is formed at a portion where a gate into which the second resin material is injected is arranged in a mold used for manufacturing. Therefore, traces of the gate remain on the exposed portion 12c. The exposed portion 12c is hidden by another member so as to be invisible to a passenger. In addition, the shape and arrangement position of the exposed portion 12c are not limited. The mounting portion 12d is a portion protruding from the laminated portion 12b in the direction toward the back surface 11c, and has a through hole. In the present embodiment, as shown in FIG. 3B, four attachment portions 12d are provided. A duct for blowing air from the air conditioner is attached to the attachment portion 12d. Note that the number and shape of the mounting portions 12d are not limited.
本実施形態では、第２の樹脂材料の色は、第１の樹脂材料の色と異なる。図１および図３では、樹脂材料が異なることを明確にするために、第２樹脂材料からなる第２の部分１２に、点描を付している。図１および図３（ａ）に示すように、開口部１１ａの周縁に配置された周縁部１２ａは、周囲の第１の部分１１とは色が異なり、意匠性に優れる。また、本実施形態では、第２の樹脂材料は第１の樹脂材料より強度が強い。したがって、エアコンの送風用のダクトが取り付けられる取付部１２ｄの強度を、第１の部分１１より強くできる。また、図４に示すように、第１の部分１１と第２の部分１２とが重なる部分（積層部１２ｂ）は、より肉厚になるので、強度が増している。 In the present embodiment, the color of the second resin material is different from the color of the first resin material. In FIGS. 1 and 3, the second portion 12 made of the second resin material is stippled to clarify that the resin material is different. As shown in FIGS. 1 and 3A, the peripheral portion 12a arranged on the peripheral portion of the opening 11a has a different color from the surrounding first portion 11, and is excellent in design. In the present embodiment, the second resin material has higher strength than the first resin material. Therefore, the strength of the mounting portion 12 d to which the air duct for the air conditioner is mounted can be stronger than that of the first portion 11. In addition, as shown in FIG. 4, the portion where the first portion 11 and the second portion 12 overlap (the laminated portion 12b) is thicker, so that the strength is increased.
次に、樹脂成形部材１０を成形するための金型について、図５を参照して説明する。 Next, a mold for molding the resin molded member 10 will be described with reference to FIG.
図５は、樹脂成形部材１０を成形するための射出成形用の金型５を示す要部拡大断面図である。金型５は、固定型５１、可動型５２およびスライド型５３を備える。固定型５１は、溶融した樹脂材料を射出する射出成形装置（図示なし）に固定される金型である。固定型５１は、成形面５１ａを備える。成形面５１ａは、固定型５１の内側の面であり、樹脂成形部材１０の意匠面（第１の部分１１の意匠面１１ｂ、および、第２の部分１２の意匠面）を成形する面である。また、固定型５１には、溶融された樹脂材料の通路としてのスプール、ランナおよびゲートが設けられている。図５には、第２の樹脂の通路としてのランナ５１ｂおよびゲート５１ｃが示されている。ゲート５１ｃは、露出部１２ｃが形成される部分に設けられている。可動型５２は、固定型５１に対して図の左右方向に移動可能に設けられる金型である。可動型５２は、成形面５２ａおよび孔５２ｂを備える。なお、成形面５２ａは、図５には表れていない。成形面５２ａは、樹脂成形部材１０の裏面（第１の部分１１の裏面１１ｃ）を成形する面である。孔５２ｂは、成形面５２ａに設けられ、スライド型５３を収容する。 FIG. 5 is an enlarged sectional view of a main part showing a mold 5 for injection molding for molding the resin molded member 10. The mold 5 includes a fixed mold 51, a movable mold 52, and a slide mold 53. The fixed mold 51 is a mold fixed to an injection molding device (not shown) for injecting a molten resin material. The fixed mold 51 includes a molding surface 51a. The molding surface 51a is a surface inside the fixed mold 51, and is a surface on which the design surface of the resin molded member 10 (the design surface 11b of the first portion 11 and the design surface of the second portion 12) is formed. . Further, the fixed mold 51 is provided with a spool, a runner and a gate as a passage for the molten resin material. FIG. 5 shows a runner 51b and a gate 51c as a second resin passage. The gate 51c is provided at a portion where the exposed portion 12c is formed. The movable mold 52 is a mold provided so as to be movable in the horizontal direction in the figure with respect to the fixed mold 51. The movable mold 52 includes a molding surface 52a and a hole 52b. Note that the molding surface 52a is not shown in FIG. The molding surface 52a is a surface on which the rear surface of the resin molded member 10 (the rear surface 11c of the first portion 11) is molded. The hole 52b is provided in the molding surface 52a and accommodates the slide mold 53.
スライド型５３は、２色成形のためにスライドする金型であり、可動型５２の孔５２ｂの内部にスライド移動可能に配置されている。スライド型５３は、成形面５３ａを備える。成形面５３ａは、スライド型５３の移動する方向に位置し、かつ、固定型５１の成形面５１ａに対向する面である。成形面５３ａは、第２の部分１２の裏面（搭乗者から見えない側の面）を成形する面である。スライド型５３は、孔５２ｂの内面に接触しながら、図に示す太線矢印の方向にスライド移動する。 The slide mold 53 is a mold that slides for two-color molding, and is slidably disposed inside the hole 52b of the movable mold 52. The slide mold 53 has a molding surface 53a. The molding surface 53a is a surface that is located in the direction in which the slide mold 53 moves and faces the molding surface 51a of the fixed mold 51. The molding surface 53a is a surface on which the rear surface of the second portion 12 (the surface on the side invisible to the occupant) is molded. The slide mold 53 slides in the direction of the bold arrow shown in the figure while contacting the inner surface of the hole 52b.
スライド型５３は、太線矢印の右方向に移動して、成形面５３ａの一部が固定型５１の成形面５１ａに当接した状態（図５において実線で示す）のときに、固定型５１の成形面５１ａ、可動型５２の成形面５２ａ（図５には表れていない）、およびスライド型５３の成形面５３ａで囲まれた第１の空間６１を形成する。当該第１の空間６１に、第１の部分１１となる溶融された第１の樹脂材料７１が射出される。このとき、ゲート５１ｃは、スライド型５３の成形面５３ａでふさがれている。また、スライド型５３は、太線矢印の左方向に移動して、成形面５３ａの全体が固定型５１の成形面５１ａから離間した状態（図５において破線で示す）のときに、その移動により第２の空間６２を形成する。当該第２の空間６２に、第２の部分１２となる溶融された第２の樹脂材料７２が射出される。 The slide mold 53 moves to the right of the thick arrow, and when a part of the molding surface 53a is in contact with the molding surface 51a of the fixed mold 51 (shown by a solid line in FIG. 5), the slide mold 53 A first space 61 surrounded by the molding surface 51a, the molding surface 52a of the movable mold 52 (not shown in FIG. 5), and the molding surface 53a of the slide mold 53 is formed. Into the first space 61, a molten first resin material 71 to be the first portion 11 is injected. At this time, the gate 51c is closed by the molding surface 53a of the slide die 53. Further, the slide mold 53 moves to the left of the thick arrow, and when the entire molding surface 53a is separated from the molding surface 51a of the fixed mold 51 (shown by a broken line in FIG. 5), the slide mold 53 is moved by the movement. A second space 62 is formed. The molten second resin material 72 to be the second portion 12 is injected into the second space 62.
次に、樹脂成形部材１０の製造方法について、図６を参照して説明する。図６は、樹脂成形部材１０の製造方法を説明するための要部拡大断面図である。 Next, a method for manufacturing the resin molded member 10 will be described with reference to FIG. FIG. 6 is an enlarged sectional view of a main part for describing a method of manufacturing the resin molded member 10.
まず、図６（ａ）に示すように、固定型５１と可動型５２とを型締めし、スライド型５３を太線矢印の右方向に移動させて、スライド型５３の成形面５３ａの一部が固定型５１の成形面５１ａに当接した状態にする。このとき、固定型５１の成形面５１ａ、可動型５２の成形面５２ａ（図６には表れていない）、およびスライド型５３の成形面５３ａで囲まれた第１の空間６１が形成される。当該第１の空間６１は、樹脂成形部材１０の第１の部分１１を成形するための空間である。次に、第１の空間６１に、溶融された第１の樹脂材料７１を射出する。第１の樹脂材料７１は、固定型５１の第１の空間６１に位置する部分に設けられたゲート（図示なし）から、第１の空間６１に射出される。図６（ａ）は、溶融された第１の樹脂材料７１が、第１の空間６１の途中まで充填されている状態を示している。次に、第１の空間６１に充填された第１の樹脂材料７１を固化させる。これにより、第１の部分１１が成形される。 First, as shown in FIG. 6A, the fixed mold 51 and the movable mold 52 are clamped, and the slide mold 53 is moved rightward with a thick arrow, so that a part of the molding surface 53a of the slide mold 53 is moved. The stationary mold 51 is brought into contact with the molding surface 51a. At this time, a first space 61 surrounded by the molding surface 51a of the fixed mold 51, the molding surface 52a of the movable mold 52 (not shown in FIG. 6), and the molding surface 53a of the slide mold 53 is formed. The first space 61 is a space for molding the first portion 11 of the resin molded member 10. Next, the molten first resin material 71 is injected into the first space 61. The first resin material 71 is injected into the first space 61 from a gate (not shown) provided in a portion of the fixed mold 51 located in the first space 61. FIG. 6A shows a state where the molten first resin material 71 is partially filled in the first space 61. Next, the first resin material 71 filled in the first space 61 is solidified. Thereby, the first portion 11 is formed.
次に、図６（ｂ）に示すように、スライド型５３を太線矢印の方向に移動させて、スライド型５３の成形面５３ａの全体が固定型５１の成形面５１ａから離間した状態にする。この移動により、第２の空間６２が形成される。第２の空間６２は、固定型５１の成形面５１ａおよび形成された第１の部分１１の裏面１１ｃとスライド型５３の成形面５３ａとの間に位置する。第２の空間６２は、樹脂成形部材１０の第２の部分１２を成形するための空間である。スライド型５３の移動により、成形面５３ａでふさがれていたゲート５１ｃは、第２の空間６２に繋がっている。 Next, as shown in FIG. 6B, the slide mold 53 is moved in the direction of the thick arrow, so that the entire molding surface 53 a of the slide mold 53 is separated from the molding surface 51 a of the fixed mold 51. By this movement, a second space 62 is formed. The second space 62 is located between the molding surface 51 a of the fixed mold 51 and the rear surface 11 c of the formed first portion 11 and the molding surface 53 a of the slide mold 53. The second space 62 is a space for molding the second portion 12 of the resin molded member 10. Due to the movement of the slide mold 53, the gate 51c closed by the molding surface 53a is connected to the second space 62.
次に、図６（ｃ）に示すように、第２の空間６２に、溶融された第２の樹脂材料７２を射出する。第２の樹脂材料７２は、ゲート５１ｃから、第２の空間６２に射出される。図６（ｃ）は、溶融された第２の樹脂材料７２が、第２の空間６２の途中まで充填されている状態を示している。次に、第２の空間６２に充填された第２の樹脂材料７２を固化させる。これにより、第２の部分１２が、第１の部分１１と一体として成形される。以上により、第１の樹脂材料７１からなる第１の部分１１と、第２の樹脂材料７２からなる第２の部分１２とを一体に有する樹脂成形部材１０が、一組の金型５内で成形される。 Next, as shown in FIG. 6C, the molten second resin material 72 is injected into the second space 62. The second resin material 72 is injected into the second space 62 from the gate 51c. FIG. 6C shows a state in which the molten second resin material 72 is partially filled in the second space 62. Next, the second resin material 72 filled in the second space 62 is solidified. Thereby, the second part 12 is formed integrally with the first part 11. As described above, the resin molded member 10 integrally having the first portion 11 made of the first resin material 71 and the second portion 12 made of the second resin material 72 is formed in one set of the molds 5. Molded.
本実施形態によると、第２の部分１２において、第１の部分１１の開口部１１ａの周縁に形成された周縁部１２ａと、第１の部分１１の意匠面１１ｂから露出する露出部１２ｃとが、第１の部分１１の裏面１１ｃに積層される積層部１２ｂを介して繋がっている。第２の部分１２は、金型５において、露出部１２ｃが形成される部分にゲート５１ｃが設けられて、第２の樹脂材料７２が第２の空間６２に充填されることで形成される。ゲート５１ｃの跡が残る露出部１２ｃは、周縁部１２ａから離れた位置に配置でき、他の部材で隠すことができる。また、積層部１２ｂは第１の部分１１の裏面１１ｃに配置される。つまり、周縁部１２ａ以外の積層部１２ｂおよび露出部１２ｃは、搭乗者から見えないように隠される。したがって、寸法の小さい開口部１１ａの周縁に第２の部分１２の周縁部１２ａを形成する場合でも、意匠性に影響を及ぼさない。また、ゲート５１ｃは周縁部１２ａが形成される部分に設けられないので、色替えのための複数のゲート５１ｃを設けることも可能である。 According to the present embodiment, in the second portion 12, the peripheral portion 12a formed around the opening 11a of the first portion 11 and the exposed portion 12c exposed from the design surface 11b of the first portion 11 are formed. , Are connected via a laminated portion 12 b laminated on the back surface 11 c of the first portion 11. The second portion 12 is formed by providing a gate 51 c at a portion of the mold 5 where the exposed portion 12 c is formed, and filling the second space 62 with the second resin material 72. The exposed portion 12c where the mark of the gate 51c remains can be arranged at a position away from the peripheral portion 12a, and can be hidden by another member. Further, the laminated portion 12b is disposed on the back surface 11c of the first portion 11. That is, the laminated portion 12b and the exposed portion 12c other than the peripheral portion 12a are hidden so as not to be seen by the occupant. Therefore, even when the peripheral portion 12a of the second portion 12 is formed on the peripheral edge of the opening 11a having a small size, the design is not affected. In addition, since the gate 51c is not provided in a portion where the peripheral portion 12a is formed, a plurality of gates 51c for color change can be provided.
なお、本実施形態においては、開口部１１ａが略矩形状の場合について説明したが、これに限られず、開口部１１ａの形状は限定されない。開口部１１ａは、例えば図７（ａ）に示すように、円形状であってもよい。また、本実施形態においては、開口部１１ａの周縁の全周にわたって周縁部１２ａが形成される場合について説明したが、これに限られない。周縁部１２ａは、開口部１１ａの周縁の一部、例えば図７（ｂ）に示すように、下方の１辺のみに形成されてもよい。 In this embodiment, the case where the opening 11a has a substantially rectangular shape has been described. However, the present invention is not limited to this, and the shape of the opening 11a is not limited. The opening 11a may be circular, for example, as shown in FIG. In the present embodiment, the case where the peripheral portion 12a is formed over the entire periphery of the peripheral portion of the opening 11a has been described, but the present invention is not limited to this. The peripheral portion 12a may be formed on a part of the peripheral edge of the opening 11a, for example, only on one lower side as shown in FIG. 7B.
本実施形態においては、インパネの、エアコンの送風口である開口部１１ａの周縁に第２の樹脂材料７２を用いた第２の部分１２を形成する場合について説明したが、これに限られない。その他の開口部の周縁に第２の部分を形成してもよい。 In the present embodiment, the case where the second portion 12 using the second resin material 72 is formed on the periphery of the opening 11a which is the air blower of the air conditioner of the instrument panel has been described, but the present invention is not limited to this. The second portion may be formed on the periphery of the other opening.
本実施形態においては、樹脂成形部材１０が自動車のインパネである場合について説明したが、これに限られない。樹脂成形部材１０は、自動車のその他の樹脂成形部材であってもよいし、自動車以外の樹脂成形部材であってもよい。本発明は、多色成形によるあらゆる樹脂成形部材に適用することができる。 In the present embodiment, the case where the resin molded member 10 is an instrument panel of an automobile has been described, but the present invention is not limited to this. The resin molded member 10 may be another resin molded member of an automobile or a resin molded member other than an automobile. The present invention can be applied to any resin molded member by multicolor molding.
本発明に係る樹脂成形部材は、上述した実施形態に限定されるものではない。本発明に係る樹脂成形部材の各部の具体的な構成は、種々に設計変更自在である。 The resin molded member according to the present invention is not limited to the embodiment described above. The specific configuration of each part of the resin molded member according to the present invention can be variously changed in design.
１０ ：樹脂成形部材
１１ ：第１の部分
１１ａ ：開口部
１１ｂ ：意匠面
１１ｃ ：裏面
１２ ：第２の部分
１２ａ ：周縁部
１２ｂ ：積層部
１２ｃ ：露出部
１２ｄ ：取付部
５ ：金型
５１ ：固定型
５１ａ ：成形面
５１ｂ ：ランナ
５１ｃ ：ゲート
５２ ：可動型
５２ａ ：成形面
５２ｂ ：孔
５３ ：スライド型
５３ａ ：成形面
６１ ：第１の空間
６２ ：第２の空間
７１ ：第１の樹脂材料
７２ ：第２の樹脂材料
10: resin molded member 11: first portion 11a: opening 11b: design surface 11c: back surface 12: second portion 12a: peripheral portion 12b: laminated portion 12c: exposed portion 12d: mounting portion 5: mold 51: Fixed mold 51a: molding surface 51b: runner 51c: gate 52: movable mold 52a: molding surface 52b: hole 53: slide mold 53a: molding surface 61: first space 62: second space 71: first resin material 72: second resin material
Claims (1)
前記第１の部分と一体として成形され、かつ、前記第１の部分とは異なる樹脂材料からなる第２の部分と、
を備え、
前記第２の部分は、
前記開口部の周縁に形成された周縁部と、
前記第１の部分の前記裏面に積層され、かつ、前記周縁部に繋がる積層部と、
前記積層部に繋がり、かつ、前記意匠面から露出する露出部と、
を備える、
ことを特徴とする樹脂成形部材。 A first surface having a design surface, a back surface opposite to the design surface, and an opening penetrating from the design surface to the back surface;
A second part formed integrally with the first part and made of a resin material different from the first part;
With
The second part is
A peripheral portion formed on a peripheral edge of the opening,
A laminated portion laminated on the back surface of the first portion and connected to the peripheral portion;
An exposed portion connected to the laminated portion and exposed from the design surface,
Comprising,
A resin molded member characterized by the above-mentioned.
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| MYPI2019005230A MY196392A (en) | 2018-09-25 | 2019-09-11 | Resin Molded Member |
| JP2021154599A JP7102596B2 (en) | 2018-09-25 | 2021-09-22 | Manufacturing method of resin molded member |
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| JP2734164B2 (en) * | 1990-03-29 | 1998-03-30 | 三菱マテリアル株式会社 | Multiple mold equipment |
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| JP5441589B2 (en) * | 2009-09-29 | 2014-03-12 | ダイハツ工業株式会社 | Injection molding method |
| JP2011156749A (en) * | 2010-02-01 | 2011-08-18 | Kojima Press Industry Co Ltd | Three-color molding method |
| JP6336764B2 (en) * | 2014-01-31 | 2018-06-06 | マクセルホールディングス株式会社 | Resin parts for automobile and manufacturing method thereof |
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|---|---|---|---|---|
| JPH09131756A (en) * | 1995-11-09 | 1997-05-20 | Sony Corp | Insert molding method |
| JPH11226995A (en) * | 1998-02-19 | 1999-08-24 | Moriroku Company Ltd | Manufacture of interior component for vehicle |
| JP2002178362A (en) * | 2000-12-13 | 2002-06-26 | Sakaiya Meihan Kk | Synthetic resin molding and its production method |
| JP2008000983A (en) * | 2006-06-22 | 2008-01-10 | Seiko Epson Corp | Double color molded member, double color product, electronic device, and metal plating method |
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| JP7102596B2 (en) | 2022-07-19 |
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