JP6029836B2 - Method for manufacturing vehicle interior member - Google Patents

Method for manufacturing vehicle interior member Download PDF

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JP6029836B2
JP6029836B2 JP2012049707A JP2012049707A JP6029836B2 JP 6029836 B2 JP6029836 B2 JP 6029836B2 JP 2012049707 A JP2012049707 A JP 2012049707A JP 2012049707 A JP2012049707 A JP 2012049707A JP 6029836 B2 JP6029836 B2 JP 6029836B2
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rib
forming
forming portion
mold
vehicle interior
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JP2013184514A (en
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小川　邦彦
邦彦 小川
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Inoac Corp
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  • Injection Moulding Of Plastics Or The Like (AREA)
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Description

この発明は、二色成形により得られる車両内装部材の製造方法に関するものである。 This invention relates to a manufacturing method for a vehicle interior member obtained by two-color molding.

自動車のピラーやドアトリムなどの車両内装部材は、二色成形により異種材料を組み合わせて一体的に成形することで、部位に応じて意匠面の色や材質を変えることが行われている(例えば特許文献１参照)。一般的に二色成形では、上型と下型との間に一色目キャビティを形成し、この一色目キャビティで第１成形部材を成形する。そして、一色目と二色目との境となる部分の上型または下型をコアバックして二色目キャビティを形成し、この二色目キャビティで第１成形部材と接合するように第２成形部材を成形して、車両内装部材を得ている。   Vehicle interior members such as automobile pillars and door trims are molded integrally by combining different materials by two-color molding, and the color and material of the design surface are changed according to the part (for example, patents) Reference 1). In general, in the two-color molding, a first color cavity is formed between an upper mold and a lower mold, and the first molded member is molded by the first color cavity. Then, the upper mold or the lower mold at the boundary between the first color and the second color is core-backed to form a second color cavity, and the second molded member is joined to the first molded member by the second color cavity. The vehicle interior member is obtained by molding.

特開平１１−３００７９３号公報Japanese Patent Laid-Open No. 11-300793

ところで、前記車両内装部材は、板状本体の裏面にリブを形成することで、板状本体の補強が図られている。しかしながら、前述した車両内装部材の成形方法では、第１成形部材および第２成形部材との間に跨ったリブを一体成形することはできず、別に成形したリブを第１成形部材および第２成形部材の裏面に溶着して、リブを設けることがなされていおり、非常に手間がかかっている。また、このように設けられたリブは、第１成形部材および第２成形部材の裏面から剥離するおそれがある。   By the way, the said vehicle interior member reinforces a plate-shaped main body by forming a rib in the back surface of a plate-shaped main body. However, in the above-described molding method of the vehicle interior member, the rib straddling between the first molding member and the second molding member cannot be integrally molded, and the separately molded rib is formed into the first molding member and the second molding. A rib is provided by welding on the back surface of the member, which is very troublesome. Further, the ribs thus provided may be peeled off from the back surfaces of the first molded member and the second molded member.

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、良好に補強し得るリブを有する車両内装部材の製造方法を提供することを目的とする。 In view of the above problems of the prior art, which has been proposed to solve these suitably, it aims to provide a manufacturing method for a vehicle interior member having the rib can favorably reinforce And

前記課題を克服し、所期の目的を達成するため、本願の請求項１に係る発明の車両内装部材の製造方法は、
コア型と第１キャビ型との間に画成される第１のキャビティに第１の樹脂原料を注入して、裏面に裏側へ突出するように形成したリブが縁辺から延出するように第１形成部を成形し、
前記第１キャビ型と第２キャビ型とを入れ替え、
前記第１形成部を残した前記コア型と前記第２キャビ型との間に画成される第２のキャビティに第２の樹脂原料を注入して、前記第１形成部における前記リブが延出する縁辺に隣接する位置に、該リブに融着するように第２形成部を成形し、
前記第１形成部の裏側から前記第２形成部の裏側に亘って繋がった前記リブが該第２形成部の裏側に融着することで、該第１形成部および第２形成部が一体化するようにしたことを要旨とする。
請求項１に係る発明によれば、リブによって第１形成部および第２形成部を効果的に補強することができる車両内装部材を簡単に得ることができる。 In order to overcome the above-mentioned problems and achieve the intended purpose, a method for manufacturing a vehicle interior member according to claim 1 of the present application is as follows.
The first resin material is injected into the first cavity defined between the core mold and the first mold mold, and the rib formed so as to protrude to the back side on the back surface extends from the edge. 1 forming the forming part,
Replacing the first and second mold types,
A second resin material is injected into a second cavity defined between the core mold and the second mold mold leaving the first forming section, and the ribs in the first forming section extend. The second forming part is molded so as to be fused to the rib at a position adjacent to the edge to be ejected,
The ribs connected from the back side of the first forming part to the back side of the second forming part are fused to the back side of the second forming part, so that the first forming part and the second forming part are integrated. The gist is to do so.
According to the first aspect of the present invention, it is possible to easily obtain a vehicle interior member that can effectively reinforce the first forming portion and the second forming portion by the ribs.

請求項２に係る発明では、前記第２形成部を、前記リブの基部が埋没するように成形するようにしたことを要旨とする。
請求項２に係る発明によれば、第２形成部とリブとの一体性を増した車両内装部材を得ることができる。 The invention according to claim 2 is characterized in that the second forming portion is shaped so that the base portion of the rib is buried.
According to the invention of claim 2, it is possible to obtain a vehicle interior member that increasing the integrity of the second forming portion and the rib.

請求項３に係る発明では、前記リブに、前記第１形成部から前記第２形成部に向かう延在方向と交差する方向に延びる補強片を形成するようにしたことを要旨とする。
請求項３に係る発明によれば、補強片によって補強性が向上したリブを得ることができる。 In the invention according to claim 3, the rib, and summarized in that which is adapted to form a reinforcing strip extending in a direction crossing the extending direction toward the second forming unit from the first forming unit.
According to the invention of claim 3, it is Rukoto obtain a rib reinforcement property is improved by the reinforcing piece.

請求項４に係る発明では、前記リブを、該リブの基部が延出端部と比べて幅広に形成するようにしたことを要旨とする。
請求項４に係る発明によれば、補強性が向上したリブを得ることができる。 The invention according to claim 4 is characterized in that the rib is formed so that the base of the rib is wider than the extended end.
According to the invention of claim 4 can Rukoto obtain a rib reinforcement property is improved.

本発明に係る車両内装部材の製造方法によれば、リブによって効果的に補強された車両内装部材を簡単に得ることができる。 According to the production method of engaging Ru car both interior member in the present invention, it is possible to obtain a vehicle interior member that is reinforced effectively by the ribs easily.

本発明の好適な実施例に係るピラーガーニッシュを正面側から示す斜視図である。It is a perspective view which shows the pillar garnish which concerns on the suitable Example of this invention from the front side. 実施例のピラーガーニッシュを背面側から示す斜視図である。It is a perspective view which shows the pillar garnish of an Example from the back side. 図２のＡ−Ａ線断面図である。It is the sectional view on the AA line of FIG. (ａ)は図３のＢ−Ｂ線断面図であり、(ｂ)は図３のＣ−Ｃ線断面図である。(a) is the BB sectional drawing of FIG. 3, (b) is CC sectional view taken on the line of FIG. 実施例の第１形成部を正面側から示す説明図である。It is explanatory drawing which shows the 1st formation part of an Example from the front side. 実施例のピラーガーニッシュの製造工程を示す説明図であり、(ａ)は第１形成部の成形時を示し、(ｂ)は第２形成部の成形時を示す。It is explanatory drawing which shows the manufacturing process of the pillar garnish of an Example, (a) shows the time of shaping | molding of a 1st formation part, (b) shows the time of shaping | molding of a 2nd formation part. 変更例１のピラーガーニッシュを背面側から示す要部説明図である。It is principal part explanatory drawing which shows the pillar garnish of the example 1 of a change from the back side. 変更例２のピラーガーニッシュを背面側から示す要部説明図である。It is principal part explanatory drawing which shows the pillar garnish of the example 2 of a change from the back side. 第１リブを第２形成部に埋め込んだ変更例を示す説明図であって、(ａ)は図３のＣ−Ｃ線に相当する部位で破断した状態であり、(ｂ)は図７のＤ−Ｄ線に相当する部位で破断した状態であり、(ｃ)は図８のＥ−Ｅ線に相当する部位で破断した状態である。It is explanatory drawing which shows the example of a change which embedded the 1st rib in the 2nd formation part, Comprising: (a) is the state fractured | ruptured in the site | part corresponding to CC line of FIG. 3, (b) is the state of FIG. It is the state fractured | ruptured in the site | part corresponded to DD line, (c) is the state fractured | ruptured in the site | part corresponding to the EE line | wire of FIG.

次に、本発明に係る車両内装部材の製造方法につき、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、実施例では、車両内装部材として、ピラーガーニッシュを例に挙げて説明する。 Next, a manufacturing method for a vehicle interior member according to the present invention, by way of preferred embodiments will be described below with reference to the accompanying drawings. In the embodiment, a pillar garnish will be described as an example of the vehicle interior member.

実施例に係るピラーガーニッシュ１０は、裏面に取着されたクリップ等の固定具を車体構成部材としてのフロントピラーに設けられた係合部に係合して、フロントピラーの乗員室側を覆うように配設される。図１および図２に示すように、ピラーガーニッシュ１０は、ルーフパネルとインストルメントパネルとの間に延在する主柱部分１２と、この主柱部分１２の途中から分岐した副柱部分１４とを備え、全体として倒立した略「Ｙ」字状に形成されている。なお、ピラーガーニッシュ１０は、フロントピラーに配設した際に、主柱部分１２と副柱部分１４との間に小窓が臨むようになっている。主柱部分１２および副柱部分１４の夫々は、短手方向(フロントピラーへの配設時の前後方向)に沿って破断した断面形状が乗員室側が凸となる湾曲形状に形成され(図３参照)、ピラーガーニッシュとフロントピラーとの間に、エアバッグ装置等の安全装置やハーネスなどを収容し得るようになっている。また、主柱部分１２の裏面には、前記固定具が取着される台座部１６,１８が形成される(図２参照)。ここで、実施例のピラーガーニッシュ１０には、主柱部分１２における副柱部分１４との接続部付近に第１台座部１６が形成され、主柱部分１２の上部に第２台座部１８が形成されている。   The pillar garnish 10 according to the embodiment is configured to cover a passenger compartment side of the front pillar by engaging a fixture such as a clip attached to the back surface with an engaging portion provided on a front pillar as a vehicle body constituting member. It is arranged. As shown in FIGS. 1 and 2, the pillar garnish 10 includes a main column portion 12 extending between the roof panel and the instrument panel, and a sub column portion 14 branched from the middle of the main column portion 12. It is formed in a substantially “Y” shape that is inverted as a whole. When the pillar garnish 10 is disposed on the front pillar, a small window faces between the main column portion 12 and the sub column portion 14. Each of the main column portion 12 and the sub column portion 14 is formed in a curved shape in which the cross-sectional shape broken along the short direction (the front-rear direction when disposed on the front pillar) is convex toward the passenger compartment (FIG. 3). Reference), a safety device such as an airbag device and a harness can be accommodated between the pillar garnish and the front pillar. Further, on the back surface of the main column portion 12, pedestal portions 16 and 18 to which the fixture is attached are formed (see FIG. 2). Here, in the pillar garnish 10 of the embodiment, the first pedestal portion 16 is formed in the vicinity of the connection portion of the main column portion 12 with the sub column portion 14, and the second pedestal portion 18 is formed above the main column portion 12. Has been.

図１および図２に示すように、ピラーガーニッシュ１０は、主柱部分１２における副柱部分１４との接続部および副柱部分１４に対向する縁部を除く主柱部分１２を構成する第１形成部２０と、主柱部分１２における副柱部分１４との接続部および副柱部分１４に対向する縁部並びに副柱部分１４を構成する第２形成部２４とが、異種材料で形成されている。ここで、ピラーガーニッシュ１０は、第１形成部２０および第２形成部２４とが二色成形により一体形成される。実施例では、色が異なる材料で二色成形することで、ルーフパネルからインストルメントパネルに延びる第１形成部２０と前記小窓の周りを囲う第２形成部２４とで色を変えている。第１形成部２０および第２形成部２４は、本体が基本的に板状に形成されて、実施例では乗員室側に臨む表面２０ａ,２４ａの夫々にシボ加工が施されている。第１形成部２０には、表面よりも裏側に凹んだ段状部２２が形成され、この段状部２２の表側を覆うように第２形成部２４が形成されて、段状部２２で重ね合わせて両者２０,２４が接続されている。そして、ピラーガーニッシュ１０は、第１形成部２０と第２形成部２４との継ぎ目が段状に形成され、第１形成部２０の表面(意匠面)２０ａが第２形成部２４の表面(意匠面)２４ａよりも乗員室側(表側)に張り出している(図３参照)。   As shown in FIGS. 1 and 2, the pillar garnish 10 is a first formation that constitutes the main column portion 12 excluding the connecting portion of the main column portion 12 with the sub column portion 14 and the edge facing the sub column portion 14. The portion 20, the connecting portion of the main column portion 12 with the sub column portion 14, the edge facing the sub column portion 14, and the second forming portion 24 constituting the sub column portion 14 are formed of different materials. . Here, in the pillar garnish 10, the first forming part 20 and the second forming part 24 are integrally formed by two-color molding. In the embodiment, the color is changed between the first forming part 20 extending from the roof panel to the instrument panel and the second forming part 24 surrounding the small window by two-color molding with different materials. The first forming portion 20 and the second forming portion 24 have a main body basically formed in a plate shape, and in the embodiment, the surface 20a, 24a facing the passenger compartment side is subjected to embossing. The first forming portion 20 is formed with a stepped portion 22 that is recessed on the back side from the front surface, and a second forming portion 24 is formed so as to cover the front side of the stepped portion 22, and is overlapped with the stepped portion 22. In total, both 20 and 24 are connected. In the pillar garnish 10, the joint between the first forming portion 20 and the second forming portion 24 is formed in a step shape, and the surface (design surface) 20a of the first forming portion 20 is the surface (design) of the second forming portion 24. (Surface) extends over the passenger compartment side (front side) from 24a (see FIG. 3).

前記ピラーガーニッシュ１０の裏面には、板状の本体を補強するリブ２６,２８,３０が裏側へ向けて突出するように設けられている(図２参照)。実施例のピラーガーニッシュ１０は、第１形成部２０および第２形成部２４の間に跨って延在するよう形成された第１リブ２６と、第１形成部２０の裏面２０ｂに形成された第２リブ２８と、第２形成部２４の裏面２４ｂに形成された第３リブ３０とを備えている。実施例の第１〜第３リブ２６,２８,３０は、裏面２０ｂ,２４ｂに対して略直交するように突出した板状片であって、何れもピラーガーニッシュ１０の短手方向に延在するよう形成されている(図２および図４参照)。また、第１〜第３リブ２６,２８,３０は、ピラーガーニッシュ１０の長手方向に離間して複数設けられている。第１形成部２０と第２形成部２４とが隣接する領域には、第１形成部２０の裏側から第２形成部２４の裏側まで延在するように繋がる第１リブ２６が、該第１形成部２０に一体形成されている(図４(ａ)参照)。そして、ピラーガーニッシュ１０では、第２形成部２４の裏側に臨む第１リブ２６に第２形成部２４が融着されている(図４(ｂ)参照)。このように、第１リブ２６は、第１形成部２０から第２形成部２４に跨って形成されており、第１形成部２０と第２形成部２４との接続部においても繋がっている。すなわち、第１リブ２６は、延在方向の全長に亘って継ぎ目なく一体的に形成される。ここで、第１リブ２６は、第２形成部２４に対して接着や溶着等により後付けで固定されるのではない。第２形成部２４をなす樹脂原料の成形に伴う融着によって第２形成部２４が第１リブ２６に固定される。なお、第２リブ２８は、第１形成部２０の成形時に板状の本体と同時に成形されて、第１形成部２０の裏面２０ｂに一体形成される。同様に、第３リブ３０は、第２形成部２４の成形時に板状の本体と同時に成形されて、第２形成部２４の裏面２４ｂに一体形成される。   On the back surface of the pillar garnish 10, ribs 26, 28, and 30 that reinforce the plate-like main body are provided so as to protrude toward the back side (see FIG. 2). The pillar garnish 10 of the embodiment has a first rib 26 formed so as to extend between the first forming portion 20 and the second forming portion 24 and a first rib 20b formed on the back surface 20b of the first forming portion 20. 2 ribs 28 and third ribs 30 formed on the back surface 24 b of the second forming portion 24. The first to third ribs 26, 28, 30 of the embodiment are plate-like pieces protruding so as to be substantially orthogonal to the back surfaces 20 b, 24 b, and all extend in the short direction of the pillar garnish 10. (See FIGS. 2 and 4). The first to third ribs 26, 28, 30 are provided in a plurality spaced apart in the longitudinal direction of the pillar garnish 10. In a region where the first forming portion 20 and the second forming portion 24 are adjacent to each other, a first rib 26 connected so as to extend from the back side of the first forming portion 20 to the back side of the second forming portion 24 is the first rib. It is integrally formed with the formation part 20 (refer Fig.4 (a)). And in the pillar garnish 10, the 2nd formation part 24 is melt | fused by the 1st rib 26 which faces the back side of the 2nd formation part 24 (refer FIG.4 (b)). As described above, the first rib 26 is formed so as to extend from the first forming portion 20 to the second forming portion 24, and is also connected at the connecting portion between the first forming portion 20 and the second forming portion 24. That is, the 1st rib 26 is integrally formed seamlessly over the full length of the extending direction. Here, the first ribs 26 are not fixed to the second forming portion 24 by adhesion or welding. The second forming portion 24 is fixed to the first rib 26 by fusion accompanying the molding of the resin raw material forming the second forming portion 24. The second rib 28 is formed at the same time as the plate-shaped main body when the first forming portion 20 is formed, and is integrally formed on the back surface 20 b of the first forming portion 20. Similarly, the third rib 30 is formed at the same time as the plate-shaped main body when the second forming portion 24 is formed, and is integrally formed on the back surface 24 b of the second forming portion 24.

前記第１台座部１６は、第１形成部２０と第２形成部２４とが隣接する領域に設けられている(図２参照)。第１台座部１６は、第１形成部２０の裏側から第２形成部２４の裏側まで延出するように形成されて、第２形成部２４の裏側に延出した部位に第２形成部２４が融着されている。このように、第１台座部１６は、第１形成部２０から第２形成部２４に跨って形成されており、第１形成部２０と第２形成部２４との接続部においても繋がっている。すなわち、第１台座部１６は、全体的に継ぎ目なく一体的に形成される。なお、第２台座部１８は、第１形成部２０の成形時に板状の本体と同時に成形されて、第１形成部２０の裏面２０ｂに一体形成される。   The first pedestal portion 16 is provided in a region where the first forming portion 20 and the second forming portion 24 are adjacent to each other (see FIG. 2). The first pedestal portion 16 is formed so as to extend from the back side of the first forming portion 20 to the back side of the second forming portion 24, and the second forming portion 24 is extended to the back side of the second forming portion 24. Are fused. Thus, the 1st base part 16 is formed ranging from the 1st formation part 20 to the 2nd formation part 24, and is connected also in the connection part of the 1st formation part 20 and the 2nd formation part 24. . That is, the first pedestal portion 16 is formed integrally and seamlessly. The second pedestal portion 18 is formed at the same time as the plate-shaped main body when the first forming portion 20 is formed, and is integrally formed on the back surface 20 b of the first forming portion 20.

次に、実施例に係るピラーガーニッシュ１０の製造方法について説明する。図６(ａ)に示すように、コア型４０と第１キャビ型４２との間に画成される第１のキャビティ４６に、第１の樹脂原料を注入し、一色目の成形を行う。一色目成形工程では、裏面に第１リブ２６を設けると共に該第１リブ２６が所定の縁辺から延出するように第１形成部２０を成形する。これにより図５に示すように、第１リブ２６が、第１形成部２０の裏側に一体形成されると共に、第２形成部２４が隣接して形成される予定の縁辺から延出し、第２形成部２４の裏側に臨むことになる第１リブ２６の延出部位が予め形成される。また、一色目成形工程では、第１形成部２０の裏面２０ｂに第１台座部１６が所定の縁辺から延出するように成形される。これにより図５に示すように、第１台座部１６が、第１形成部２０の裏側に一体形成されると共に、第２形成部２４が隣接して形成される予定の縁辺から延出し、第２形成部２４の裏側に臨むことになる第１台座部１６の部位が予め形成される。そして、一色目成形工程では、第２リブ２８および第２台座部１８も併せて成形される。なお、第１形成部２０は、裏面２０ｂがコア型４０の成形面で規定されると共に、表面２０ａが第１キャビ型４２の成形面で規定される。   Next, the manufacturing method of the pillar garnish 10 which concerns on an Example is demonstrated. As shown in FIG. 6A, the first resin material is injected into the first cavity 46 defined between the core mold 40 and the first mold mold 42, and the first color molding is performed. In the first color forming step, the first ribs 26 are provided on the back surface, and the first forming portion 20 is formed so that the first ribs 26 extend from a predetermined edge. As a result, as shown in FIG. 5, the first rib 26 is integrally formed on the back side of the first forming portion 20, and the second forming portion 24 is extended from the edge where the second forming portion 24 is to be formed adjacently. An extending portion of the first rib 26 that faces the back side of the forming portion 24 is formed in advance. Further, in the first color forming step, the first pedestal portion 16 is formed on the back surface 20b of the first forming portion 20 so as to extend from a predetermined edge. As a result, as shown in FIG. 5, the first pedestal portion 16 is integrally formed on the back side of the first forming portion 20, and the second forming portion 24 is extended from the adjacent edge to be formed, 2 A portion of the first base portion 16 that faces the back side of the forming portion 24 is formed in advance. In the first color molding step, the second rib 28 and the second pedestal 18 are also molded together. In the first forming unit 20, the back surface 20 b is defined by the molding surface of the core mold 40, and the front surface 20 a is defined by the molding surface of the first cavity mold 42.

前記第１のキャビティ４６において第１の樹脂原料が固化して第１形成部２０が形成された後に、コア型４０に第１形成部２０を残した状態で第１のキャビティ４６を開放する。第１キャビ型４２と第２キャビ型４４とを入れ替えて、コア型４０と第２キャビ型４４を型閉めすることで、コア型４０またはコア型４０に保持された第１形成部２０と第２キャビ型４４との間に第２のキャビティ４８が画成される(図６(ｂ)参照)。実施例では、第２キャビ型４４が第１形成部２０における段状部２２の上段縁を封止して、第２のキャビティ４８を画成している。なお、第１キャビ型４２と第２キャビ型４４の入れ替えは、コア型４０を回転などの動作させることで行っても、キャビ型４２,４４側を動作させても、両方４０,４２,４４を動作させてもよい。   After the first resin material is solidified in the first cavity 46 and the first forming part 20 is formed, the first cavity 46 is opened with the first forming part 20 left in the core mold 40. The first mold part 42 and the second mold 44 are interchanged, and the core mold 40 and the second mold 44 are closed, so that the first mold 20 held by the core mold 40 or the core mold 40 and the first mold 20 are closed. A second cavity 48 is defined between the two-cavity mold 44 (see FIG. 6B). In the embodiment, the second cavity mold 44 seals the upper edge of the stepped portion 22 in the first forming portion 20 to define the second cavity 48. Note that the first mold 42 and the second mold 44 can be replaced by rotating the core mold 40 or by operating the mold molds 42 and 44, both 40, 42 and 44. May be operated.

前記第２のキャビティ４８に対して第２の樹脂原料を注入して、二色目の成形を行う。二色目成形工程では、第１形成部２０における第１リブ２６および第１台座部１６が延出する縁辺に隣接する位置に、第１リブ２６および第１台座部１６に融着するように第２形成部２４を成形する。すなわち、第１形成部２０の段状部２２、第１リブ２６の基部および第１台座部１６の基部に臨むように画成された第２のキャビティ４８に注入された第２の樹脂原料が、段状部２２、第１リブ２６の基部および第１台座部１６の基部に接触した状態で流動性のある溶融状態から固化する。これにより、第２形成部２４が段状部２２、第１リブ２６の基部および第１台座部１６の基部に融着した状態で形成される。なお、二色目成形工程では、第３リブ３０も併せて成形される。このように二色成形を行うことで、第１形成部２０の裏側から第２形成部２４の裏側に亘って繋がった第１リブ２６を備えたピラーガーニッシュ１０が得られる。   A second resin material is injected into the second cavity 48 to perform second color molding. In the second color forming step, the first rib 26 and the first pedestal 16 are fused to the first rib 26 and the first pedestal 16 at a position adjacent to the edge where the first rib 26 and the first pedestal 16 extend. 2 Forming part 24 is shape | molded. That is, the second resin raw material injected into the second cavity 48 defined to face the stepped portion 22 of the first forming portion 20, the base portion of the first rib 26 and the base portion of the first pedestal portion 16 is provided. In the state where the stepped portion 22, the base portion of the first rib 26, and the base portion of the first pedestal portion 16 are in contact with each other, the liquid is solidified from the molten state. Accordingly, the second forming portion 24 is formed in a state of being fused to the stepped portion 22, the base portion of the first rib 26, and the base portion of the first pedestal portion 16. In the second color molding process, the third rib 30 is also molded. By performing the two-color molding in this way, the pillar garnish 10 including the first rib 26 connected from the back side of the first forming unit 20 to the back side of the second forming unit 24 is obtained.

実施例のピラーガーニッシュ１０によれば、第１〜第３リブ２６,２８,３０によって板状の本体を補強することができる。第１リブ２６は、第１形成部２０から第２形成部２４にかけて繋がるように一体形成されて連続しているので、第１形成部２０と第２形成部２４との夫々に分断してリブを設ける構成や、第１形成部２０と第２形成部２４との夫々に形成したリブを溶着して繋ぐ構成などと比べて、第１形成部２０および第２形成部２４を効果的に補強できる。ピラーガーニッシュ１０では、第１形成部２０と第２形成部２４との接続部が弱くなるが、この接続部を跨って繋がった第１リブ２６が延在しているので、当該接続部を効果的に補強することができる。また、前記接続部に延在する第１リブ２６によって、第１形成部２０と第２形成部２４との剥離を防止できるので、段状部２２での第１形成部２０と第２形成部２４の重ね合わせ面積を小さくすることができる。そして、第１リブ２６は、第１形成部２０に一体形成されると共に第２形成部２４が融着しているので、別に成形されたリブを形成部２０,２４に後付けする構成のように、板状の本体の撓み等によっても形成部２０,２４から剥離することはなく、該板状の本体を効果的に補強することができる。   According to the pillar garnish 10 of the embodiment, the plate-shaped main body can be reinforced by the first to third ribs 26, 28, and 30. Since the first rib 26 is integrally formed so as to be connected from the first forming portion 20 to the second forming portion 24, the first rib 26 is divided into the first forming portion 20 and the second forming portion 24, and the ribs are separated. Compared to the configuration in which the first forming portion 20 and the second forming portion 24 are welded and connected to each other, the first forming portion 20 and the second forming portion 24 are effectively reinforced. it can. In the pillar garnish 10, the connecting portion between the first forming portion 20 and the second forming portion 24 is weak, but the first rib 26 connected across the connecting portion extends, so that the connecting portion is effective. Can be reinforced. Further, since the first rib 26 extending to the connection portion can prevent the first forming portion 20 and the second forming portion 24 from being peeled off, the first forming portion 20 and the second forming portion at the stepped portion 22 are prevented. The overlapping area of 24 can be reduced. And since the 1st rib 26 is integrally formed in the 1st formation part 20, and the 2nd formation part 24 is melt | fused, it is like the structure which attaches the separately shape | molded rib to the formation parts 20 and 24 later. The plate-shaped main body can be effectively reinforced without being peeled off from the forming portions 20 and 24 even by bending of the plate-shaped main body.

前記ピラーガーニッシュ１０は、第１形成部２０に一体形成された第１台座部１６に第２形成部２４が融着して、第１形成部２０と第２形成部２４とに跨って第１台座部１６が設けられる。すなわち、第１形成部２０または第２形成部２４の何れかに台座部１６を形成する等、台座部１６の形成位置が限定されることはなく、台座部１６の形成位置の自由度を向上することができる。また、前述の如くピラーガーニッシュ１０では、第１形成部２０と第２形成部２４との接続部が弱くなるが、この接続部を跨って第１台座部１６が設けられているので、第１台座部１６によって当該接続部を補強することができる。   In the pillar garnish 10, the second forming portion 24 is fused to the first pedestal portion 16 integrally formed with the first forming portion 20, and the first garnish 10 straddles the first forming portion 20 and the second forming portion 24. A pedestal 16 is provided. That is, the formation position of the pedestal portion 16 is not limited, such as forming the pedestal portion 16 in either the first formation portion 20 or the second formation portion 24, and the degree of freedom of the formation position of the pedestal portion 16 is improved. can do. Further, as described above, in the pillar garnish 10, the connecting portion between the first forming portion 20 and the second forming portion 24 is weak, but the first pedestal portion 16 is provided across the connecting portion. The connection portion can be reinforced by the pedestal portion 16.

実施例の製造方法によれば、二色成形によって第１形成部２０から第２形成部２４にまで繋がる第１リブ２６および第１台座部１６を簡単に形成することができる。また、スライドコアや型のコアバッグなどを行うことなく、二色成形用の一般的な型設備４０,４２,４４で第１リブ２６を形成することができ、簡易な型設備によって実施例のピラーガーニッシュ１０を成形し得る。   According to the manufacturing method of the embodiment, the first rib 26 and the first pedestal portion 16 that are connected from the first forming portion 20 to the second forming portion 24 can be easily formed by two-color molding. Further, the first rib 26 can be formed by the general mold equipment 40, 42, 44 for two-color molding without performing a slide core or a core bag of the mold. The pillar garnish 10 can be molded.

(変更例)
前述した実施例の構成に限定されず、以下のように変更することができる。なお変更例おいて、実施例と同様の構成には同じ符号を付して説明を省略する。
(１)リブ２６,２８,３０の形状は、実施例の構成に限定されず、ブロック状や半円状など種々の形態に変更可能である。また、後述する変更例のリブ態様やその他を組み合わせて用いてもよい。
(２)図７に示す変更例１のピラーガーニッシュ５０は、第１リブ２６に、第１形成部２０から第２形成部２４に向かう延在方向と交差する方向に延びる補強片５２が形成されている。すなわち、変更例１では、ピラーガーニッシュ５０の短手方向に延びる第１リブ２６とこの第１リブ２６に交差するリブ状の補強片５２とを備えている。なお、補強片５２は、隣り合う第１リブ２６,２６間に亘って形成しても、隣り合う第１リブ２６に繋がらないように形成してもよい。変更例１のようなリブ２６,５２が交差する形態であっても、実施例と同様の二色成形によってピラーガーニッシュ５０を簡単に成形することができる。そして、変更例１のピラーガーニッシュ５０によれば、交差するリブ２６,５２によって一層効果的に補強を行うことができる。
(３)図８に示す変更例２のピラーガーニッシュ５４において、第１リブ２６は、基部が延出端部２６ａと比べて幅広に形成されている。より具体的には、変更例２では、第１リブ２６の基部に、該第１リブ２６の延在方向と交差する方向に延出する延出部５６が設けられることで、延出端部２６ａと比べて基部が幅広になっている。なお、延出部５６を連続して設けても、複数の延出部５６を互いに離間して設けてもよい。変更例２の第１リブ２６によれば、基部の剛性が向上するので、第１リブ２６が倒伏し難くなり、より効果的に板状の本体を補強することができる。また、延出部５６によって第２形成部２４の融着面積を広く確保することができ、第２形成部２４を第１リブ２６により効果的に補強することができる。なお、第１リブ２６は、延出端部２６ａから基部に向かうにつれて徐々に幅広に形成してもよい。
(４)図９に示すように、二色目成形工程において第２形成部２４を第１リブ２６の基部が埋没するように成形することで、第１リブ２６について基部が第２形成部２４に埋没するように形成してもよい。このように、第１リブ２６の基部を第２形成部２４に埋め込むことで、第１リブ２６と第２形成部２４との一体性が増し、一体形成された第１形成部２０と同様に第２形成部２４を第１リブ２６により補強することができる。
(５)車両内装部材としては、ピラーガーニッシュに限られず、ドアトリム、インストルメントパネル、フロアコンソール、コンソールリッドなどに適用できる。また、第１形成部と第２形成部とで色を変えるだけでなく、剛性等の機能を変えてもよい。 (Change example)
The present invention is not limited to the configuration of the embodiment described above, and can be modified as follows. In the modified example, the same components as those in the embodiment are denoted by the same reference numerals and description thereof is omitted.
(1) The shape of the ribs 26, 28, 30 is not limited to the configuration of the embodiment, and can be changed to various forms such as a block shape and a semicircular shape. Moreover, you may use combining the rib aspect of the example of a change mentioned later, and others.
(2) In the pillar garnish 50 of the first modification shown in FIG. 7, the reinforcing piece 52 extending in the direction intersecting the extending direction from the first forming portion 20 toward the second forming portion 24 is formed on the first rib 26. ing. That is, in the first modification, the first rib 26 extending in the short direction of the pillar garnish 50 and the rib-shaped reinforcing piece 52 intersecting the first rib 26 are provided. Note that the reinforcing piece 52 may be formed between the adjacent first ribs 26 or 26 so as not to be connected to the adjacent first ribs 26. Even in the form in which the ribs 26 and 52 intersect as in the first modification, the pillar garnish 50 can be easily formed by two-color molding similar to the embodiment. And according to the pillar garnish 50 of the first modification, the ribs 26 and 52 that intersect each other can be more effectively reinforced.
(3) In the pillar garnish 54 of Modification 2 shown in FIG. 8, the first rib 26 has a base portion that is wider than the extended end portion 26 a. More specifically, in the second modification, the extended end 56 is provided at the base of the first rib 26 so as to extend in a direction intersecting the extending direction of the first rib 26. The base is wider than 26a. The extending portions 56 may be provided continuously, or the plurality of extending portions 56 may be provided separately from each other. According to the first rib 26 of the modified example 2, the rigidity of the base portion is improved, so that the first rib 26 is difficult to fall down, and the plate-shaped main body can be reinforced more effectively. In addition, the wide area of the second forming portion 24 can be secured by the extending portion 56, and the second forming portion 24 can be effectively reinforced by the first rib 26. Note that the first rib 26 may be formed so as to gradually increase in width from the extending end portion 26a toward the base portion.
(4) As shown in FIG. 9, in the second color forming step, the second forming portion 24 is formed so that the base portion of the first rib 26 is buried, so that the base portion of the first rib 26 becomes the second forming portion 24. You may form so that it may be buried. Thus, by embedding the base portion of the first rib 26 in the second forming portion 24, the integrity of the first rib 26 and the second forming portion 24 is increased, similarly to the integrally formed first forming portion 20. The second forming portion 24 can be reinforced by the first rib 26.
(5) The vehicle interior member is not limited to the pillar garnish, and can be applied to a door trim, an instrument panel, a floor console, a console lid, and the like. In addition to changing the color between the first forming portion and the second forming portion, functions such as rigidity may be changed.

２０ 第１形成部，２４ 第２形成部，２６ 第１リブ(リブ)，２６ａ 延出端部，
４０ コア型，４２ 第１キャビ型，４４ 第２のキャビ型，４６ 第１のキャビティ，
４８ 第２のキャビティ，５２ 補強片 20 1st formation part, 24 2nd formation part, 26 1st rib (rib), 26a Extension end part,
40 core type, 42 first mold type, 44 second mold type, 46 first cavity,
48 Second cavity 52 Reinforcing piece

Claims (4)

コア型と第１キャビ型との間に画成される第１のキャビティに第１の樹脂原料を注入して、裏面に裏側へ突出するように形成したリブが縁辺から延出するように第１形成部を成形し、
前記第１キャビ型と第２キャビ型とを入れ替え、
前記第１形成部を残した前記コア型と前記第２キャビ型との間に画成される第２のキャビティに第２の樹脂原料を注入して、前記第１形成部における前記リブが延出する縁辺に隣接する位置に、該リブに融着するように第２形成部を成形し、
前記第１形成部の裏側から前記第２形成部の裏側に亘って繋がった前記リブが該第２形成部の裏側に融着することで、該第１形成部および第２形成部が一体化するようにした
ことを特徴とする車両内装部材の製造方法。 The first resin material is injected into the first cavity defined between the core mold and the first mold mold, and the rib formed so as to protrude to the back side on the back surface extends from the edge. 1 forming the forming part,
Replacing the first and second mold types,
A second resin material is injected into a second cavity defined between the core mold and the second mold mold leaving the first forming section, and the ribs in the first forming section extend. The second forming part is molded so as to be fused to the rib at a position adjacent to the edge to be ejected,
The ribs connected from the back side of the first forming part to the back side of the second forming part are fused to the back side of the second forming part, so that the first forming part and the second forming part are integrated. A method for manufacturing a vehicle interior member, characterized in that it is made. 前記第２形成部を、前記リブの基部が埋没するように成形するようにした請求項１記載の車両内装部材の製造方法。 Wherein the second forming unit, a manufacturing method of a vehicle interior member like the claims 1, wherein the base of the rib is shaped to buried. 前記リブに、前記第１形成部から前記第２形成部に向かう延在方向と交差する方向に延びる補強片を形成するようにした請求項１または２記載の車両内装部材の製造方法。 The rib method of the first aspect and to form a reinforcing strip extending in a direction crossing the extending direction toward the second forming unit from the forming section 1 or 2, wherein the vehicle interior member. 前記リブを、該リブの基部が延出端部と比べて幅広に形成するようにした請求項１〜３の何れか一項に記載の車両内装部材の製造方法。 Said ribs, manufacturing method for a vehicle interior member according to any one of claims 1 to 3 as the base of the rib is formed wider than the extending end.
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