JP5881281B2 - Foam molded body mounting member, foam molded member, foam molded member manufacturing method, and foam molded member mounting structure - Google Patents

Foam molded body mounting member, foam molded member, foam molded member manufacturing method, and foam molded member mounting structure Download PDF

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JP5881281B2
JP5881281B2 JP2010197845A JP2010197845A JP5881281B2 JP 5881281 B2 JP5881281 B2 JP 5881281B2 JP 2010197845 A JP2010197845 A JP 2010197845A JP 2010197845 A JP2010197845 A JP 2010197845A JP 5881281 B2 JP5881281 B2 JP 5881281B2
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foam molded
locking
mounting member
foam
portions
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JP2012052643A (en
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佳之 高橋
佳之 高橋
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Bridgestone Corp
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  • Vibration Dampers (AREA)
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Description

本発明は、発泡成形体を被取付部材に取り付けるための発泡成形体の取付部材に係り、特に、被取付部材に設けられた被係止部と係合する係止部を有しており、発泡成形体とインサート成形により一体化される発泡成形体の取付部材に関する。また、本発明は、この発泡成形体の取付部材が発泡成形体とインサート成形により一体化されてなる発泡成形部材と、この発泡成形部材の製造方法と、この発泡成形部材を該取付部材を介して被取付部材に取り付けた取付構造とに関する。   The present invention relates to a mounting member for a foam molded body for attaching the foam molded body to a mounted member, and in particular, has a locking portion that engages with a locked portion provided in the mounted member, The present invention relates to a mounting member for a foam molded body integrated with the foam molded body by insert molding. The present invention also provides a foam molded member in which the mounting member for the foam molded body is integrated with the foam molded body by insert molding, a method for producing the foam molded member, and the foam molded member via the mounting member. And an attachment structure attached to a member to be attached.

車両のドアの裏側（車内側）には、車両の側面衝突時の衝撃エネルギー吸収（Ｅｎｅｒｇｙ Ａｂｓｏｒｐｔｉｏｎ：ＥＡ）のために、硬質ウレタンフォームよりなる衝撃エネルギー吸収材（以下、ＥＡ材と略すことがある。）が取り付けられている。このＥＡ材をドアトリムに取り付ける方法として、特開２００５−２０７５２４（特許文献１）には、第１１図に示す構造が記載されている。第１１図は、特許文献１の図５に記載されたＥＡ材取付構造を示す断面図である。   The back side of the vehicle door (inside the vehicle) may be abbreviated as an impact energy absorbing material (hereinafter referred to as EA material) made of rigid urethane foam for absorbing energy absorption (EA) at the time of side collision of the vehicle. .) Is attached. As a method of attaching the EA material to the door trim, Japanese Patent Application Laid-Open No. 2005-207524 (Patent Document 1) describes a structure shown in FIG. FIG. 11 is a cross-sectional view showing the EA material mounting structure described in FIG.

このＥＡ材取付構造においては、ＥＡ材１０１がドアトリム１０５に対し取付部材（特許文献１ではクリップと称されている。）１０２と、該ドアトリム１０５から突設された突起１０６とを介して取り付けられている。この突起１０６は、ポリエチレン、ポリプロピレン等の熱可塑性樹脂よりなる。取付部材１０２は、ＥＡ材１０１とインサート成形により一体に設けられている。   In this EA material attachment structure, the EA material 101 is attached to the door trim 105 via an attachment member (referred to as a clip in Patent Document 1) 102 and a protrusion 106 protruding from the door trim 105. ing. The protrusion 106 is made of a thermoplastic resin such as polyethylene or polypropylene. The attachment member 102 is integrally provided with the EA material 101 by insert molding.

第１１図（ａ）の通り、ＥＡ材１０１は、主体部１０１ａと、該主体部１０１ａの側面からドアトリム１０５に沿うように側方へ張り出す複数個の張出部１０１ｂとを有している。各張出部１０１ｂの厚さ（ドアトリム１０５のＥＡ材取付面と垂直方向の厚さ。以下、同様。）は、主体部１０１ａの厚さよりも小さなものとなっている。ドアトリム１０５には、これらの張出部１０１ｂとそれぞれ対応する位置関係にて、複数個の突起１０６が設けられている。これらの張出部１０１ｂにそれぞれ取付部材１０２が設けられている。この取付部材１０２は、突起１０６が挿入される円筒形状の筒部１０３と、該筒部１０３の筒軸心線方向の両端側にそれぞれ設けられた外向き鍔状のフランジ部１０４とを備えている。この取付部材１０２は、各張出部１０１ｂにおいて、筒部１０３の筒軸心線方向を該張出部１０１ｂの厚さ方向として該張出部１０１ｂに埋設されており、各フランジ部１０４が該張出部１０１ｂのドアトリム１０５側の面及びこれと反対側の面にそれぞれ露呈している。   As shown in FIG. 11 (a), the EA material 101 has a main body portion 101a and a plurality of projecting portions 101b projecting sideways along the door trim 105 from the side surface of the main body portion 101a. . The thickness of each projecting portion 101b (thickness in the direction perpendicular to the EA material mounting surface of the door trim 105; the same applies hereinafter) is smaller than the thickness of the main body portion 101a. The door trim 105 is provided with a plurality of protrusions 106 in a positional relationship corresponding to each of the overhang portions 101b. A mounting member 102 is provided on each of the overhang portions 101b. The mounting member 102 includes a cylindrical tube portion 103 into which the protrusion 106 is inserted, and outward flange-like flange portions 104 provided on both ends of the tube portion 103 in the tube axis direction. Yes. The mounting member 102 is embedded in the overhanging portion 101b so that the tube axial center direction of the tube portion 103 is the thickness direction of the overhanging portion 101b in each overhanging portion 101b. It is exposed to the surface of the overhang portion 101b on the door trim 105 side and the surface on the opposite side.

この取付部材１０２を備えたＥＡ材１０１を製造する場合には、ＥＡ材成形用金型（図示略）の内面から突設された取付部材固定用突起を筒部１０３に挿入して取付部材１０２を該ＥＡ材成形用金型の内面に取り付けておく。ＥＡ材成形用金型の内面には、ＥＡ材１０１の各張出部１０１ｂと対応する位置関係にて複数個の取付部材固定用突起が設けられており、これらの取付部材固定用突起にそれぞれ取付部材１０２を取り付ける。その後、該ＥＡ材成形用金型内で発泡合成樹脂原料を発泡させてＥＡ材本体を成形する。これにより、複数個の取付部材１０２が一体に設けられたＥＡ材１０１が製造される。   When manufacturing the EA material 101 provided with the mounting member 102, the mounting member fixing protrusions protruding from the inner surface of the EA material molding die (not shown) are inserted into the cylindrical portion 103 to attach the mounting member 102. Is attached to the inner surface of the EA material molding die. A plurality of mounting member fixing protrusions are provided on the inner surface of the EA material molding die in a positional relationship corresponding to each overhanging portion 101b of the EA material 101. The attachment member 102 is attached. Thereafter, the foamed synthetic resin raw material is foamed in the EA material molding die to mold the EA material body. Thereby, the EA material 101 in which the plurality of attachment members 102 are integrally provided is manufactured.

この取付部材１０２を備えたＥＡ材１０１をドアトリム１０５に取り付ける場合には、第１１図（ｂ）の通り、各突起１０６を各取付部材１０２の筒部１０３に差し込んでＥＡ材１０１をドアトリム１０５に重ねる。その後、各突起１０６の先端に溶着治具（図示略）を押し当て、第１１図（ｃ）の通り各突起１０６の先端を略円盤状に拡径させてフランジ状押さえ部１０６ａを形成する。これにより、ＥＡ材１０１がドアトリム１０５に固定される。   When attaching the EA material 101 provided with the attachment member 102 to the door trim 105, as shown in FIG. 11 (b), the projections 106 are inserted into the cylindrical portions 103 of the attachment members 102, and the EA material 101 is attached to the door trim 105. Overlapping. Thereafter, a welding jig (not shown) is pressed against the tip of each protrusion 106, and the diameter of the tip of each protrusion 106 is increased to a substantially disk shape as shown in FIG. Thereby, the EA material 101 is fixed to the door trim 105.

特開２００５−２０７５２４JP-A-2005-207524

上記特許文献１では、１個の取付部材１０２に１個の突起１０６が係合する。そのため、この取付部材１０２を備えたＥＡ材１０１を製造する場合には、ＥＡ材本体の発泡成形に先立ち、ドアトリム１０５に設けられた突起１０６と同数個の取付部材１０２を１個ずつＥＡ材成形用金型の内面に取り付ける必要があり、ＥＡ材の製造作業が煩雑になるおそれがある。ＥＡ材の製造作業は、できるだけ簡略化されることが望まれている。   In Patent Document 1, one protrusion 106 engages with one mounting member 102. Therefore, when manufacturing the EA material 101 provided with this mounting member 102, prior to foam molding of the EA material body, the same number of mounting members 102 as the projections 106 provided on the door trim 105 are molded one by one. It is necessary to attach to the inner surface of the metal mold, and there is a risk that the manufacturing operation of the EA material becomes complicated. It is desired that the manufacturing operation of the EA material be simplified as much as possible.

本発明は、被取付部材に設けられた複数個の被係止部とそれぞれ係合する複数個の係止部を備えた発泡成形部材を容易に製造することが可能な発泡成形体の取付部材と、この取付部材が発泡成形体とインサート成形により一体化されてなる発泡成形部材と、この発泡成形部材の製造方法と、この発泡成形部材を被取付部材に取り付けた取付構造とを提供することを目的とする。   The present invention relates to a mounting member for a foam molded body capable of easily manufacturing a foam molded member having a plurality of locking portions respectively engaged with a plurality of locked portions provided on the mounted member. And a foam molded member in which the mounting member is integrated with the foam molded body by insert molding, a method for manufacturing the foam molded member, and a mounting structure in which the foam molded member is mounted on the mounted member. With the goal.

本発明（請求項１）の発泡成形体の取付部材は、衝撃エネルギー吸収材としての発泡成形体を被取付部材に取り付けるための取付部材であって、該被取付部材に設けられた被係止部と係合する係止部を備えており、該発泡成形体とインサート成形により一体化される発泡成形体の取付部材において、該取付部材は、複数個の該係止部と、該係止部同士を連結した連結部とを備えており、前記連結部に補強用リブが設けられており、前記補強用リブは、前記係止部にそれぞれ連なっていることを特徴とするものである。
本発明（請求項２）の発泡成形体の取付部材は、請求項１において、前記係止部と前記連結部とが同一材料よりなることを特徴とするものである。
本発明（請求項３）の発泡成形体の取付部材は、請求項１又は２において、前記連結部は、ＡＢＳ樹脂、ポリプロピレン樹脂、ポリカーボネート樹脂、ポリスチレン樹脂、又はポリアセタール樹脂よりなることを特徴とするものである。 The mounting member for a foamed molded product of the present invention (Claim 1) is a mounting member for mounting a foamed molded product as an impact energy absorbing material to a mounted member, and is a locked member provided on the mounted member. In the mounting member of the foam molded body integrated with the foam molded body and insert molding, the mounting member includes a plurality of the locking sections and the locking section. And a reinforcing rib is provided on the connecting portion, and the reinforcing rib is connected to the locking portion, respectively .
Mounting member of the foam molded article of the present invention (Claim 2), in claim 1, and the engaging portion and the connecting portion is characterized in that formed of the same material.
The foam molded article mounting member of the present invention (Claim 3) is characterized in that in Claim 1 or 2, the connecting portion is made of ABS resin, polypropylene resin, polycarbonate resin, polystyrene resin, or polyacetal resin. Is.

請求項４の発泡成形体の取付部材は、請求項１ないし３のいずれか１項において、前記連結部は、前記発泡成形体の前記被取付部材との対峙面に沿って配設される基片部を有しており、該基片部から該対峙面と直交方向に前記補強用リブが突設されていることを特徴とするものである。 The mounting member of the foam molded body according to claim 4 is the base member according to any one of claims 1 to 3 , wherein the connecting portion is disposed along a surface facing the mounted member of the foam molded body. The reinforcing rib protrudes from the base piece in a direction perpendicular to the facing surface.

本発明（請求項５）の発泡成形部材は、発泡成形体と、該発泡成形体とインサート成形により一体化された、請求項１ないし４のいずれか１項に記載の発泡成形体の取付部材とを有していることを特徴とするものである。 The foam molded body of the present invention (Claim 5 ) is a foam molded body, and the foam molded body mounting member according to any one of claims 1 to 4 , wherein the foam molded body is integrated with the foam molded body by insert molding. It is characterized by having.

請求項６の発泡成形部材は、請求項５において、前記発泡成形体は、主体部と、該主体部から被取付部材に沿うように該主体部の外方へ張り出した複数個の張出部とを有しており、該張出部にそれぞれ前記取付部材の前記係止部が配設されており、各張出部から該主体部にかけて前記連結部が延在していることを特徴とするものである。 The foam molded member according to claim 6 is the foam molded member according to claim 5 , wherein the foam molded body includes a main body portion and a plurality of projecting portions projecting outward from the main body portion along the mounted member. The locking portions of the mounting members are disposed on the overhang portions, respectively, and the connecting portions extend from the overhang portions to the main body portion. To do.

本発明（請求項７）の発泡成形部材の製造方法は、請求項５又は６に記載の発泡成形部材を製造するための方法であって、発泡成形体成形用金型の内面に設けられた複数個の取付部材係合部にそれぞれ前記取付部材の前記係止部を係合させて該取付部材を該発泡成形体成形用金型の内面に設置する取付部材設置工程と、該取付部材設置工程の後、該発泡成形体成形用金型内で前記発泡成形体を発泡成形する発泡成形工程とを有していることを特徴とするものである。 The method for producing a foam molded member of the present invention (Claim 7 ) is a method for producing the foam molded member according to Claim 5 or 6 , and is provided on the inner surface of a mold for molding a foam molded body. A mounting member installation step of engaging the locking portions of the mounting member with a plurality of mounting member engaging portions, respectively, and installing the mounting member on the inner surface of the mold for molding a foam molded body; and mounting the mounting member And a foam molding step of foam-molding the foam-molded body in the foam-molded body-molding mold after the step.

本発明（請求項８）の発泡成形部材の取付構造は、請求項５又は６に記載の発泡成形部材を被取付部材に取り付けた構造であって、該被取付部材に設けられた複数個の被係止部がそれぞれ前記取付部材の前記係止部と係合したことにより、該発泡成形部材が該被取付部材に取り付けられていることを特徴とするものである。 The foam molded member mounting structure according to the present invention (Claim 8 ) is a structure in which the foam molded member according to Claim 5 or 6 is mounted on a mounted member, and a plurality of the foam molded members mounted on the mounted member. The foamed molded member is attached to the attached member by engaging the engaged portions with the engaging portions of the attachment member.

本発明（請求項１）の発泡成形体の取付部材は、被取付部材に設けられた被係止部と係合する係止部を複数個有しており、これらの係止部同士が連結部によって連結されたものとなっている。そのため、この取付部材を用いて発泡成形部材を製造する場合には、上記第１１図の従来例のように１個の被係止部（突起１０６）としか係合しない取付部材１０２を用いた場合に比べて、発泡成形体成形用金型に取り付けるべき取付部材の個数を少なくすることが可能である。これにより、発泡成形部材の製造作業を簡略化することが可能となる。また、この取付部材にあっては、係止部同士が連結部によって連結されているため、各係止部が別々に発泡成形体にインサートされる場合に比べて、該係止部同士の間の発泡成形体の強度を向上させることが可能となる。また、連結部に補強用リブを設けることにより、連結部を高強度とすることができる。また、この取付部材を発泡成形体に埋設することにより、発泡成形体の強度を向上させることも可能である。また、補強用リブを、各係止部に連なるように設けることにより、各係止部と連結部との連結強度を向上させることが可能となる。 The mounting member of the foam molded body of the present invention (Claim 1) has a plurality of locking portions that engage with the locked portions provided on the mounted member, and these locking portions are connected to each other. It is connected by the part. Therefore, when a foam molded member is manufactured using this mounting member, the mounting member 102 that engages with only one locked portion (projection 106) as in the conventional example of FIG. 11 is used. Compared to the case, it is possible to reduce the number of attachment members to be attached to the mold for molding a foam molded body. Thereby, it becomes possible to simplify the manufacturing operation of the foam molded member. Moreover, in this attachment member, since the latching | locking parts are connected by the connection part, compared with the case where each latching | locking part is separately inserted in a foaming molding, between these latching | locking parts. It is possible to improve the strength of the foamed molded article. Moreover, a connection part can be made high intensity | strength by providing a rib for reinforcement in a connection part. In addition, the strength of the foam molded body can be improved by embedding the mounting member in the foam molded body. Further, by providing the reinforcing rib so as to be continuous with each locking portion, it is possible to improve the connection strength between each locking portion and the connecting portion.

請求項４の通り構成することにより、連結部を、発泡成形体の被取付部材との対峙面と垂直方向の荷重に対し十分な強度を有するように構成することが可能となる。 By configuring as in claim 4 , the connecting portion can be configured to have sufficient strength against the load in the direction perpendicular to the facing surface of the foamed molded product against the mounted member.

本発明（請求項５）の発泡成形部材にあっては、かかる本発明の取付部材を備えているので、上記第１１図の従来例のように１個の被係止部（突起１０６）としか係合しない取付部材１０２を複数個備えた発泡成形部材に比べて、発泡成形体にインサートされる取付部材の個数が少なくて済むため、比較的簡易な製造作業にて製造することが可能である。また、この取付部材は、係止部同士が連結部によって連結されているため、本発明の発泡成形部材は、各係止部が別々に発泡成形体にインサートされたものに比べて、該係止部同士の間の発泡成形体の強度が高くなるように構成することが可能である。 Since the foamed molded member of the present invention (Claim 5 ) is provided with the mounting member of the present invention, it has one locked portion (projection 106) as in the conventional example of FIG. Compared to a foam molded member having a plurality of mounting members 102 that only engage, the number of mounting members to be inserted into the foam molded body can be reduced, so that it can be manufactured by a relatively simple manufacturing operation. is there. In addition, since the engaging portions of the mounting member are connected to each other by the connecting portions, the foamed molded member of the present invention has a higher engagement than that in which the engaging portions are separately inserted into the foamed molded body. It is possible to configure so that the strength of the foamed molded body between the stoppers is increased.

請求項６の態様では、発泡成形体は、前述の第１１図のＥＡ材１０１と同様に、主体部と、該主体部から被取付部材に沿うように該主体部の外方へ張り出した複数個の張出部とを有した形状となっており、これらの張出部にそれぞれ取付部材の係止部が配設されている。発泡成形体がこのような形状となっていると、各係止部が被取付部材の各被係止部と係合した状態において該発泡成形体に荷重が加えられた場合には、各張出部の基端部に応力が集中する可能性がある。この態様では、これらの係止部同士が連結部によって連結されており、この連結部が各張出部から主体部にかけて延在しているため、各張出部の基端部をこの連結部により補強して耐久性を向上させることが可能である。 In the aspect of claim 6 , the foamed molded body includes a main body and a plurality of the main body that protrudes outward from the main body so as to follow the mounted member, like the EA material 101 of FIG. 11 described above. Each of the overhanging portions is provided with a locking portion for the attachment member. When the foamed molded body has such a shape, when a load is applied to the foamed molded body in a state where each locking portion is engaged with each locked portion of the mounted member, There is a possibility that stress concentrates on the base end of the protruding portion. In this aspect, these engaging portions are connected to each other by a connecting portion, and since this connecting portion extends from each overhanging portion to the main body portion, the base end portion of each overhanging portion is connected to this connecting portion. It is possible to reinforce and improve the durability.

本発明（請求項７）の発泡成形部材の製造方法にあっては、かかる本発明の取付部材を発泡成形体にインサート成形して発泡成形部材を製造するため、上記第１１図の従来例のように１個の被係止部（突起１０６）としか係合しない取付部材１０２を用いて発泡成形部材を製造する場合に比べて、発泡成形体成形用金型の内面に設置すべき取付部材の個数が少なくて済むため、発泡成形部材の製造作業を簡略化することが可能であり、これにより比較的容易に発泡成形部材を製造することが可能となる。 In the method for manufacturing a foam molded member according to the present invention (Claim 7 ), the mounting member according to the present invention is insert-molded into a foam molded body to manufacture a foam molded member. Thus, the mounting member to be installed on the inner surface of the mold for molding a foam molded body as compared with the case where the foam molded member is manufactured using the mounting member 102 that engages with only one locked portion (projection 106). Therefore, the manufacturing operation of the foam-molded member can be simplified, and the foam-molded member can be manufactured relatively easily.

本発明（請求項８）の発泡成形部材の取付構造にあっては、被取付部材に設けられた複数個の被係止部をそれぞれ取付部材の各係止部と係合させることにより、発泡成形部材が被取付部材に取り付けられる。本発明では、これらの係止部同士は連結部によって連結されているので、発泡成形体に加えられた荷重がこれらの係止部に広く分散され、局所的に応力が集中することが防止ないし緩和される。 In the foam molded member mounting structure of the present invention (invention 8 ), the plurality of locked portions provided on the mounted member are respectively engaged with the locking portions of the mounting member, thereby foaming. The molded member is attached to the attached member. In the present invention, since these engaging portions are connected to each other by the connecting portion, the load applied to the foamed molded product is widely dispersed in these engaging portions, preventing stress from being concentrated locally. Alleviated.

第１の実施の形態に係る発泡成形体の取付部材の説明図である。It is explanatory drawing of the attachment member of the foaming molding which concerns on 1st Embodiment. 図１の発泡成形体の取付部材を備えた発泡成形部材の製造方法の説明図である。It is explanatory drawing of the manufacturing method of the foaming molding member provided with the attachment member of the foaming molding of FIG. 図１の発泡成形体の取付部材を備えた発泡成形部材及びこの発泡成形部材を被取付部材に取り付けた取付構造の説明図である。It is explanatory drawing of the mounting structure which attached the foaming molding member provided with the attachment member of the foaming molding body of FIG. 1, and this foaming molding member to the to-be-attached member. 第２の実施の形態に係る発泡成形体の取付部材の平面図である。It is a top view of the attachment member of the foaming molding which concerns on 2nd Embodiment. 第３の実施の形態に係る発泡成形体の取付部材の平面図である。It is a top view of the attachment member of the foaming molding which concerns on 3rd Embodiment. 第４の実施の形態に係る発泡成形体の取付部材の断面図である。It is sectional drawing of the attachment member of the foaming molding which concerns on 4th Embodiment. 第５の実施の形態に係る発泡成形部材の断面図及びこの発泡成形部材を製造するための発泡成形体成形用金型の断面図である。It is sectional drawing of the foaming molding member which concerns on 5th Embodiment, and sectional drawing of the metal mold | die for foaming molding for manufacturing this foaming molding member. 第６の実施の形態に係る発泡成形部材の断面図及びこの発泡成形部材を製造するための発泡成形体成形用金型の断面図である。It is sectional drawing of the foaming molding member which concerns on 6th Embodiment, and sectional drawing of the metal mold | die for foaming molding for manufacturing this foaming molding member. 発泡成形用金型の別の構成例を示す断面図である。It is sectional drawing which shows another structural example of the metal mold | die for foam molding. 第７の実施の形態に係る発泡成形体の取付部材の断面図である。It is sectional drawing of the attachment member of the foaming molding which concerns on 7th Embodiment. 従来例に係る発泡成形部材の取付構造の説明図である。It is explanatory drawing of the attachment structure of the foaming molding member which concerns on a prior art example.

以下に、図面を参照して本発明の実施の形態について説明する。なお、以下の実施の形態では、発泡成形部材はＥＡ材であり、このＥＡ材を被取付部材としてのドアトリムに取り付けた取付構造を例示しているが、本発明の発泡成形部材は、ＥＡ材に限定されない。また、本発明において、被取付部材は、ドアトリムに限定されない。   Embodiments of the present invention will be described below with reference to the drawings. In the following embodiments, the foam molded member is an EA material, and an example of an attachment structure in which the EA material is attached to a door trim as a member to be attached is illustrated. However, the foam molded member of the present invention is an EA material. It is not limited to. Moreover, in this invention, a to-be-attached member is not limited to a door trim.

第１図（ａ）は、実施の形態に係る発泡成形体の取付部材（以下、取付部材と略す。）の平面図であり、第１図（ｂ）は第１図（ａ）のＢ−Ｂ線矢視図であり、第１図（ｃ）は第１図（ａ）のＣ−Ｃ線に沿う断面図であり、第１図（ｄ）は第１図（ａ）のＤ−Ｄ線に沿う断面図である。第２図（ａ）は、この取付部材を備えた発泡成形部材としてのＥＡ材を製造するためのＥＡ材成形用金型の縦断面図であり、第２図（ｂ）は、このＥＡ材成形用金型の取付部材係合部としての係合突起付近の拡大断面図である。なお、第２図（ａ），（ｂ）は、それぞれ、該係合突起の軸心線に沿う断面にて図示されている。第３図（ａ）は、この取付部材を備えたＥＡ材の平面図であり、第３図（ｂ）は、このＥＡ材を被取付部材としてのドアトリムに取り付けた取付構造の断面図である。なお、第３図（ａ）は、ＥＡ材をドアトリムと反対側（即ち第３図（ｂ）における上方）から見た図である。第３図（ｂ）は、第３図（ａ）のＢ−Ｂ線に沿う断面にて図示されている。   FIG. 1 (a) is a plan view of an attachment member (hereinafter abbreviated as attachment member) of a foamed molded product according to an embodiment, and FIG. 1 (b) is a B- in FIG. 1 (a). Fig. 1 (c) is a cross-sectional view taken along line CC of Fig. 1 (a), and Fig. 1 (d) is a DD view of Fig. 1 (a). It is sectional drawing which follows a line. FIG. 2 (a) is a longitudinal sectional view of an EA material molding die for producing an EA material as a foam molded member provided with this mounting member, and FIG. 2 (b) is this EA material. It is an expanded sectional view near an engaging projection as an attachment member engaging portion of a molding die. 2 (a) and 2 (b) are each shown in a cross section along the axial center line of the engaging projection. FIG. 3 (a) is a plan view of an EA material provided with this mounting member, and FIG. 3 (b) is a cross-sectional view of a mounting structure in which this EA material is mounted on a door trim as a mounted member. . FIG. 3 (a) is a view of the EA material viewed from the side opposite to the door trim (that is, the upper side in FIG. 3 (b)). FIG. 3 (b) is shown in a cross section taken along line BB in FIG. 3 (a).

ＥＡ材１は、第３図（ａ），（ｂ）の通り、硬質ウレタンフォーム等の発泡合成樹脂成形体よりなるＥＡ材本体２と、該ＥＡ材本体２をドアトリム２０に取り付けるための取付部材１０とを備えている。取付部材１０は、インサート成形によりＥＡ材本体２と一体化されている。取付部材１０は、第１図（ａ）の通り、ＥＡ材本体２をドアトリム２０に係止するための複数個の係止部１１と、これらの係止部１１同士を連結した連結部１２とを備えている。ドアトリム２０のＥＡ材取付面には、これらの係止部１１とそれぞれ係合する複数個の被係止部としての係止突起２１が設けられている。   As shown in FIGS. 3 (a) and 3 (b), the EA material 1 includes an EA material body 2 made of a foamed synthetic resin molded body such as rigid urethane foam, and an attachment member for attaching the EA material body 2 to the door trim 20. 10. The attachment member 10 is integrated with the EA material body 2 by insert molding. As shown in FIG. 1 (a), the mounting member 10 includes a plurality of locking portions 11 for locking the EA material body 2 to the door trim 20, and a connecting portion 12 connecting these locking portions 11 to each other. It has. On the EA material mounting surface of the door trim 20, there are provided a plurality of locking projections 21 as a plurality of locked portions that respectively engage with the locking portions 11.

この実施の形態では、ＥＡ材本体２は、第３図（ａ），（ｂ）の通り、略方形盤状の主体部２ａと、該主体部２ａの側面からドアトリム２０に沿うように側方へ張り出した複数個の張出部２ｂとを有している。この実施の形態では、第３図（ａ）における主体部２ａの上辺の左端側及び右端側、並びに該主体部２ａの下辺の左右方向中間付近の計３箇所にそれぞれ張出部２ｂが配置されているが、張出部２ｂの個数及び配置はこれに限定されない。ＥＡ材本体２のドアトリム２０との対峙面（以下、背面ということがある。）は、主体部２ａから各張出部２ｂまで面一状となっている。各張出部２ｂの厚さ（ＥＡ材本体２のドアトリム２０との対峙面と垂直方向（即ち第３図（ｂ）における上下方向）における厚さ。以下、同様。）は、主体部２ａの厚さよりも小さいものとなっている。各張出部２ｂの厚さは、主体部２ａの厚さの５〜５０％特に８〜４０％程度であることが好ましい。なお、ＥＡ材１が一般的な市販車のドアトリム２０に設けられるものである場合には、主体部２ａの厚さは５０〜１３０ｍｍ程度とされ、各張出部２ｂの厚さは１０〜２０ｍｍ程度とされる。なお、ＥＡ材本体２の形状や寸法等の構成はこれに限定されない。   In this embodiment, as shown in FIGS. 3 (a) and 3 (b), the EA material main body 2 has a substantially square disk-shaped main body 2a and a lateral side along the door trim 20 from the side surface of the main body 2a. And a plurality of projecting portions 2b projecting to the top. In this embodiment, overhang portions 2b are respectively arranged at a total of three locations near the left end side and the right end side of the upper side of the main portion 2a in FIG. 3 (a) and the middle in the left-right direction of the lower side of the main portion 2a. However, the number and arrangement of the overhang portions 2b are not limited to this. The surface facing the door trim 20 of the EA material main body 2 (hereinafter also referred to as the back) is flush with the main body 2a to each overhanging portion 2b. The thickness of each projecting portion 2b (the thickness in the direction perpendicular to the face of the EA material main body 2 facing the door trim 20 (that is, the thickness in the vertical direction in FIG. 3 (b)). It is smaller than the thickness. The thickness of each overhang 2b is preferably about 5 to 50%, particularly about 8 to 40%, of the thickness of the main body 2a. When the EA material 1 is provided on a door trim 20 of a general commercial vehicle, the thickness of the main body 2a is about 50 to 130 mm, and the thickness of each overhang 2b is 10 to 20 mm. It is assumed that The configuration of the EA material body 2 such as the shape and dimensions is not limited to this.

この実施の形態では、取付部材１０は計３個の係止部１１を有しており、第３図（ａ）の通り、これらの係止部１１がそれぞれＥＡ材本体２の各張出部２ｂに配設されている。この実施の形態では、各係止部１１は、係止突起２１が挿入される挿入穴１４を有する略円筒形状の筒部１３と、該筒部１３の筒軸心線方向の一端側（以下、先端側という。）から放射方向へ外向き鍔状に張り出したフランジ部１５とを備えている。挿入穴１４は、筒部１３をその筒軸心線方向に貫通している。フランジ部１５は、該筒部１３の先端面と面一状に形成されている。なお、筒部１３の筒軸心線方向の他端側（以下、後端側という。）にもフランジ部１５が設けられていてもよい。この実施の形態では、該フランジ部１５は、円形の平面視形状となっているが、フランジ部１５の形状はこれに限定されない。筒部１３の筒軸心線方向の長さは、各張出部２ｂの厚さと同等となっている。各張出部２ｂにおいて、この係止部１１は、筒部１３の筒軸心線方向を該張出部２ｂの厚さ方向とし、且つ筒部１３の先端側（即ちフランジ部１５側）をドアトリム２０と反対側に向けて該張出部２ｂに埋設されており、該張出部２ｂの背面に筒部１３の後端面が露呈し、該張出部２ｂのドアトリム２０と反対側の面（以下、前面ということがある。）にフランジ部１５が露呈している。なお、係止部１１の個数や配置、形状等の構成はこれに限定されない。例えば、筒部１３の筒軸心線方向の長さは、各張出部２ｂの厚さよりも小さくてもよい。なお、前述の特開２００５−２０７５２４のクリップ１００を、一般的な市販車のドアトリム２０にＥＡ材１を取り付けるための規格品として設計した場合には、通常、筒部１０３の筒軸心線方向の長さが１０ｍｍ又は１２ｍｍ、該筒部１０３の内径が７ｍｍ、各フランジ部１０４の外径が２０ｍｍ、各フランジ部１０４の厚みが１ｍｍ程度に設定される。本発明においても、取付部材１０を、一般的な市販車のドアトリム２０にＥＡ材１を取り付けるためのものとして設計する場合には、各係止部１１の筒部１３及びフランジ部１４の形状や寸法は、それぞれ、この規格品のクリップ１００の筒部１０３及びフランジ部１０４と同様とされることが好ましい。   In this embodiment, the attachment member 10 has a total of three locking portions 11, and these locking portions 11 are respectively extended portions of the EA material main body 2 as shown in FIG. 2b. In this embodiment, each locking portion 11 includes a substantially cylindrical tube portion 13 having an insertion hole 14 into which a locking projection 21 is inserted, and one end side of the tube portion 13 in the direction of the center axis of the tube (hereinafter referred to as “the cylindrical shaft 13”). And a flange portion 15 projecting outwardly in a radial shape from the front end side). The insertion hole 14 penetrates the cylinder part 13 in the cylinder axis direction. The flange portion 15 is formed to be flush with the distal end surface of the cylindrical portion 13. In addition, the flange part 15 may be provided also in the other end side (henceforth a rear-end side) of the cylinder axial direction of the cylinder part 13. FIG. In this embodiment, the flange portion 15 has a circular plan view shape, but the shape of the flange portion 15 is not limited to this. The length of the tube portion 13 in the tube axis direction is equal to the thickness of each overhang portion 2b. In each of the overhang portions 2b, the locking portion 11 has the cylinder axis direction of the tube portion 13 as the thickness direction of the overhang portion 2b, and the distal end side of the tube portion 13 (that is, the flange portion 15 side). It is embedded in the overhanging portion 2b toward the opposite side of the door trim 20, and the rear end surface of the cylindrical portion 13 is exposed on the back surface of the overhanging portion 2b, and the surface of the overhanging portion 2b opposite to the door trim 20 is exposed. (Hereinafter, it may be called a front surface.) The flange part 15 is exposed. Note that the number, arrangement, shape, and the like of the locking portions 11 are not limited to this. For example, the length of the cylinder portion 13 in the cylinder axis direction may be smaller than the thickness of each overhang portion 2b. When the clip 100 disclosed in Japanese Patent Laid-Open No. 2005-207524 is designed as a standard product for attaching the EA material 1 to the door trim 20 of a general commercial vehicle, the direction of the cylinder axis of the cylinder portion 103 is usually set. Is 10 mm or 12 mm, the inner diameter of the cylindrical portion 103 is 7 mm, the outer diameter of each flange portion 104 is 20 mm, and the thickness of each flange portion 104 is about 1 mm. Also in the present invention, when the mounting member 10 is designed for mounting the EA material 1 on a door trim 20 of a general commercial vehicle, the shape of the cylindrical portion 13 and the flange portion 14 of each locking portion 11 The dimensions are preferably the same as those of the cylindrical portion 103 and the flange portion 104 of the standard clip 100.

この実施の形態では、第１図（ａ）〜（ｄ）の通り、連結部１２は、ＥＡ材本体２の背面に沿って配設される帯板状の基片部１６と、該基片部１６からＥＡ材本体２の内方へ向って突設された補強用リブ１７とを有する略Ｔ字形断面形状となっている。該基片部１６は、板面をＥＡ材本体２の背面と略平行方向として配設されている。補強用リブ１７は、この帯板状基片部１６の幅方向の中央付近を該基片部１６の長手方向に延在している。取付部材１０を、上記のように規格品のクリップ１００に倣って一般的な市販車のドアトリム２０にＥＡ材１を取り付けるためのものとして設計する場合には、この基片部１６の幅Ｗ１（第１図（ｃ））は２〜３０ｍｍ特に５〜２０ｍｍ程度であることが好ましく、この基片部１６の厚さｔ（第１図（ｃ））は０．３〜３ｍｍ特に０．５〜２ｍｍ程度であることが好ましい。また、補強用リブ１７の基片部１６からの突出高さＨ（第１図（ｃ））は１．５〜１５ｍｍ特に２〜１２ｍｍ程度であることが好ましく、この補強用リブ１７の幅Ｗ２（第１図（ｃ））は０．３〜３ｍｍ特に０．５〜２ｍｍ程度であることが好ましい。 In this embodiment, as shown in FIGS. 1A to 1D, the connecting portion 12 includes a strip-like base piece portion 16 disposed along the back surface of the EA material main body 2, and the base piece. It has a substantially T-shaped cross-sectional shape having reinforcing ribs 17 projecting from the portion 16 toward the inside of the EA material main body 2. The base piece portion 16 is disposed with the plate surface substantially parallel to the back surface of the EA material main body 2. The reinforcing rib 17 extends in the longitudinal direction of the base piece portion 16 near the center in the width direction of the strip plate-like base piece portion 16. When the mounting member 10 is designed to attach the EA material 1 to the door trim 20 of a general commercial vehicle following the standard clip 100 as described above, the width W 1 of the base piece portion 16 is designed. (FIG. 1 (c)) is preferably about 2 to 30 mm, particularly about 5 to 20 mm, and the thickness t (FIG. 1 (c)) of the base piece 16 is 0.3 to 3 mm, particularly 0.5. It is preferable that it is about ~ 2 mm. The protrusion height H of the reinforcing rib 17 from the base piece portion 16 (FIG. 1 (c)) is preferably about 1.5 to 15 mm, particularly about 2 to 12 mm. The width W of the reinforcing rib 17 2 (FIG. 1 (c)) is preferably about 0.3 to 3 mm, particularly about 0.5 to 2 mm.

この実施の形態では、連結部１２は、第１図（ａ）及び第３図（ａ）の通り、該基片部１６が主体部２ａの背面の４辺に沿って該主体部２ａの背面を周回するように方形枠状に延在した主体部配置部１２ａと、各張出部２ｂの基端付近において該基片部１６が該主体部配置部１２ａから各張出部２ｂに向ってそれぞれ延出した張出部配置部１２ｂとを有している。各張出部配置部１２ｂの先端側において、該基片部１６は各係止部１１の筒部１３の外周面に連なっている。第１図（ｂ），（ｃ）の通り、該基片部１６は、その背面が各係止部１１の筒部１３の後端面と面一状となるように該筒部１３の外周面に連なっている。主体部配置部１２ａにおいては、補強用リブ１７は、該主体部配置部１２ａの全周にわたって延設されている。各張出部配置部１２ｂの補強用リブ１７は、第１図（ａ）〜（ｃ）の通り、該張出部配置部１２ｂの基端側においては、この主体部配置部１２ａの補強用リブ１７に合流しており、該張出部配置部１２ｂの先端側においては、各係止部１１の筒部１３の外周面に連なっている。なお、連結部１２の構成はこれに限定されない。   In this embodiment, as shown in FIG. 1 (a) and FIG. 3 (a), the connecting portion 12 has the base piece portion 16 along the four sides of the back surface of the main body portion 2a. The base piece portion 16 extends from the main body portion placement portion 12a toward each overhang portion 2b in the vicinity of the base end of each overhang portion 2b. Each has an extended portion arrangement portion 12b extending. The base piece portion 16 is connected to the outer peripheral surface of the cylindrical portion 13 of each locking portion 11 on the distal end side of each overhang portion arranging portion 12b. As shown in FIGS. 1 (b) and 1 (c), the base piece portion 16 has an outer peripheral surface of the cylindrical portion 13 such that the back surface thereof is flush with the rear end surface of the cylindrical portion 13 of each locking portion 11. It is connected to. In the main body portion arranging portion 12a, the reinforcing rib 17 is extended over the entire circumference of the main body portion arranging portion 12a. As shown in FIGS. 1 (a) to 1 (c), the reinforcing rib 17 of each overhanging portion arrangement portion 12b is used to reinforce the main portion arrangement portion 12a on the base end side of the overhanging portion arrangement portion 12b. It merges with the rib 17, and continues to the outer peripheral surface of the cylindrical portion 13 of each locking portion 11 at the distal end side of the overhanging portion arranging portion 12 b. In addition, the structure of the connection part 12 is not limited to this.

取付部材１０は、例えば合成樹脂の射出成形品よりなる。この取付部材１０を構成する材料としては、例えばＡＢＳ樹脂、ポリプロピレン樹脂、ポリカーボネート樹脂、ポリスチレン樹脂、ポリアセタール樹脂（ポリオキシメチレン樹脂）等が好適であるが、これに限定されない。この実施の形態では、取付部材１０は、連結部１２と各係止部１１とが一体成形されたものとなっているが、取付部材１０の構成はこれに限定されない。例えば、連結部１２と各係止部１１とを別々に成形した後、これらを合体させて取付部材１０を製造するようにしてもよい。   The attachment member 10 is made of, for example, a synthetic resin injection-molded product. As a material constituting the mounting member 10, for example, ABS resin, polypropylene resin, polycarbonate resin, polystyrene resin, polyacetal resin (polyoxymethylene resin) and the like are preferable, but are not limited thereto. In this embodiment, the attachment member 10 is formed by integrally forming the connecting portion 12 and each locking portion 11, but the configuration of the attachment member 10 is not limited to this. For example, after the connecting portion 12 and each locking portion 11 are separately formed, the attachment member 10 may be manufactured by combining them.

次に、この取付部材１０を備えたＥＡ材１の製造方法について説明する。なお、以下の製造方法は一例であり、ＥＡ材１の製造方法はこれに限定されない。   Next, the manufacturing method of the EA material 1 provided with this attachment member 10 is demonstrated. In addition, the following manufacturing methods are an example and the manufacturing method of the EA material 1 is not limited to this.

第３図（ａ）のＥＡ材成形用金型（以下、単に金型と呼ぶことがある。）４０は、上型４１と、下型４２とを備えている。この実施の形態では、該ＥＡ材成形用金型４０内において、ＥＡ材本体２は、ドアトリム２０との対峙面を上向きにして成形される。この実施の形態では、下型４１のキャビティ面には、ＥＡ材本体２の主体部２ａを成形するための主体部成形用凹部４４と、各張出部２ｂを成形するための複数個（この実施の形態では３個）の張出部成形用凹部４５とが設けられている。各張出部成形用凹部４５は、主体部成形用凹部４４よりも深さが小さいものとなっている。この実施の形態では、各張出部成形用凹部４５の底面から、取付部材１０の各係止部１１に係合する取付部材係合部としての係合突起４３が突設されている。これらの係合突起４３が取付部材１０の各係止部１１の挿入穴１４にそれぞれ挿入されることにより、取付部材１０が下型４２内に保持される。   An EA material molding die (hereinafter, sometimes simply referred to as a die) 40 in FIG. 3A includes an upper die 41 and a lower die 42. In this embodiment, in the EA material molding die 40, the EA material body 2 is molded with the surface facing the door trim 20 facing upward. In this embodiment, on the cavity surface of the lower mold 41, a main body forming recess 44 for forming the main body portion 2a of the EA material main body 2 and a plurality (this) for forming each overhang portion 2b are formed. In the embodiment, there are provided three) overhanging portion forming recesses 45. Each overhang portion forming recess 45 is smaller in depth than the main portion forming recess 44. In this embodiment, from the bottom surface of each overhang portion forming recess 45, an engaging protrusion 43 as an attaching member engaging portion that engages with each engaging portion 11 of the attaching member 10 is projected. These engaging projections 43 are inserted into the insertion holes 14 of the respective locking portions 11 of the mounting member 10, whereby the mounting member 10 is held in the lower mold 42.

各張出部成形用凹部４５の底面からの係合突起４３の起立高さは、第２図（ａ），（ｂ）の通り、各係止部１１の筒部１３の先端面（即ちフランジ部１５）が該張出部成形用凹部４５の底面に当接するまで係合突起４３を挿入穴１４に挿入した状態において、該係合突起４３の先端面（上端面）が筒部１３の後端面と面一状となる（即ち筒部１３の筒軸心線方向の長さと同等である）か又は該筒部１３の後端面から若干（好ましくは０．１〜１ｍｍ特に０．１〜０．５ｍｍ程度）挿入穴１４内に後退する（即ち筒部１３の筒軸心線方向の長さよりも短い）大きさとなっていることが好ましい。各係合突起４３に取付部材１０の各係止部１１を係合させて上型４１と下型４２とを型締めしたときには、各係止部１１の筒部１３の後端面が上型４１のキャビティ面に実質的に密着する（筒部１３の後端面と上型４１のキャビティ面との間に好ましくは０．１〜１ｍｍ特に０．１〜０．３ｍｍ程度の隙間があく）ようになっている。各係合突起４３の太さは、挿入穴１４の内径と同等となっているか、それよりも若干（好ましくは０．１〜０．８ｍｍ特に０．３〜０．６ｍｍ程度）細くなっており、各係合突起４３を各挿入穴１４に挿入可能であり、且つ各係合突起４３を各挿入穴１４に挿入した状態において、各係合突起４３の外周面が実質的に各挿入穴１４の内周面に密着するようになっている。なお、ＥＡ材成形用金型４０の構成はこれに限定されない。   As shown in FIGS. 2 (a) and 2 (b), the rising height of the engaging protrusion 43 from the bottom surface of each overhang portion forming recess 45 is the tip end surface (that is, flange) of the cylindrical portion 13 of each locking portion 11. In the state in which the engaging projection 43 is inserted into the insertion hole 14 until the portion 15) contacts the bottom surface of the overhanging portion forming recess 45, the front end surface (upper end surface) of the engaging projection 43 is the rear of the cylindrical portion 13. It is flush with the end surface (that is, equal to the length of the cylindrical portion 13 in the direction of the cylinder axis) or slightly (preferably 0.1 to 1 mm, particularly 0.1 to 0) from the rear end surface of the cylindrical portion 13. .About.5 mm) is preferably retracted into the insertion hole 14 (that is, shorter than the length of the cylindrical portion 13 in the direction of the cylindrical axis). When the upper mold 41 and the lower mold 42 are clamped by engaging the engaging portions 11 of the attachment member 10 with the engaging protrusions 43, the rear end surface of the cylindrical portion 13 of each engaging portion 11 is the upper mold 41. Substantially close to the cavity surface (preferably a gap of about 0.1 to 1 mm, particularly about 0.1 to 0.3 mm is provided between the rear end surface of the cylindrical portion 13 and the cavity surface of the upper die 41). It has become. The thickness of each engaging protrusion 43 is equal to the inner diameter of the insertion hole 14 or slightly smaller (preferably about 0.1 to 0.8 mm, particularly about 0.3 to 0.6 mm). In the state where each engagement protrusion 43 can be inserted into each insertion hole 14 and each engagement protrusion 43 is inserted into each insertion hole 14, the outer peripheral surface of each engagement protrusion 43 is substantially equal to each insertion hole 14. It is designed to be in close contact with the inner circumferential surface. The configuration of the EA material molding die 40 is not limited to this.

ＥＡ材１を製造する場合には、まず、上型４１と下型４２とを型開きした状態において、第２図（ａ），（ｂ）の通り各係止部１１の筒部１３の先端側（即ちフランジ部１５側）を下向きにして各係合突起４３を各係止部１１の挿入穴１４に挿入し、取付部材１０を下型４２内に取り付ける。その後、下型４２内にＥＡ材本体２の発泡合成樹脂原料を注入し、上型４１と下型４２とを型締めして該発泡合成樹脂原料を発泡させる。この発泡合成樹脂は、下型４２のキャビティ底面から上型４１のキャビティ天井面まで膨張して主体部成形用凹部４４内及び各張出部成形用凹部４５内を充填する。これにより、ＥＡ材本体２が成形される。該主体部成形用凹部４４内を充填した発泡合成樹脂によりＥＡ材本体２の主体部２ａが成形され、各張出部成形用凹部４５内を充填した発泡合成樹脂により、該主体部２ａから側方へ張り出した３個の張出部２ｂが成形される。また、この際、取付部材１０の各係止部１１の筒部１３とフランジ部１４の背面側、並びに連結部１２の補強用リブ１７及び基片部１６の前面側が該発泡合成樹脂中に埋没することにより、取付部材１０がＥＡ材本体２と一体化される。連結部１２のうち主体部配置部１２ａが主体部２ａに配設され、各張出部配置部１２ｂが各張出部２ｂから主体部２ａにかけて配設されている。   When the EA material 1 is manufactured, first, in the state where the upper die 41 and the lower die 42 are opened, the tip of the cylindrical portion 13 of each locking portion 11 as shown in FIGS. 2 (a) and 2 (b). The engagement protrusions 43 are inserted into the insertion holes 14 of the locking portions 11 with the side (that is, the flange portion 15 side) facing downward, and the attachment member 10 is attached in the lower mold 42. Thereafter, the foamed synthetic resin raw material of the EA material body 2 is injected into the lower mold 42, and the upper mold 41 and the lower mold 42 are clamped to foam the foamed synthetic resin raw material. This foamed synthetic resin expands from the cavity bottom surface of the lower mold 42 to the cavity ceiling surface of the upper mold 41 and fills the inside of the main body molding recess 44 and each overhang molding recess 45. Thereby, the EA material main body 2 is shape | molded. The main body portion 2a of the EA material body 2 is molded by the foamed synthetic resin filled in the main body molding recess 44, and the foam synthetic resin filled in each overhang molding concave portion 45 is side by side from the main body 2a. Three projecting portions 2b projecting in the direction are formed. Further, at this time, the back surface side of the cylindrical portion 13 and the flange portion 14 of each locking portion 11 of the mounting member 10 and the front surface side of the reinforcing rib 17 and the base piece portion 16 of the connecting portion 12 are buried in the foamed synthetic resin. By doing so, the attachment member 10 is integrated with the EA material main body 2. Of the connecting portions 12, a main body arrangement portion 12a is disposed on the main body portion 2a, and each overhang portion arrangement portion 12b is disposed from each overhang portion 2b to the main body portion 2a.

この発泡合成樹脂が硬化した後、上型４１と下型４２とを型開きしてＥＡ材本体２及び取付部材１０を脱型する。取付部材１０の各係止部１１は、各々のフランジ部１５が該ＥＡ材本体２の各張出部２ｂの前面に露出し、各々の筒部１３の後端面が各張出部２ｂの背面に露出したものとなっている。このフランジ部１５及び筒部１３の後端面の中央に挿入穴１４が開口している。脱型後、必要に応じバリ取り等の仕上げ作業を行うことにより、ＥＡ材１が完成する。   After the foamed synthetic resin is cured, the upper die 41 and the lower die 42 are opened, and the EA material body 2 and the attachment member 10 are removed. As for each latching | locking part 11 of the attachment member 10, each flange part 15 is exposed to the front surface of each overhang | projection part 2b of this EA material main body 2, and the rear end surface of each cylinder part 13 is the back surface of each overhang | projection part 2b. It is exposed. An insertion hole 14 is opened at the center of the rear end face of the flange portion 15 and the cylindrical portion 13. After removing the mold, the EA material 1 is completed by performing a finishing operation such as deburring as necessary.

次に、このＥＡ材１のドアトリム２０への取付構造について説明する。   Next, a structure for attaching the EA material 1 to the door trim 20 will be described.

ドアトリム２０のＥＡ材取付面には、ＥＡ材１と一体化された取付部材１０の各係止部１１とそれぞれ対応する位置関係にて、複数個（この実施の形態では３個）の被係止部としての係止突起２１が設けられている。この係止突起２１は、ポリエチレン、ポリプロピレン等の熱可塑性樹脂よりなる。   A plurality (three in this embodiment) of engaged members are attached to the EA material mounting surface of the door trim 20 in a positional relationship corresponding to each locking portion 11 of the mounting member 10 integrated with the EA material 1. A locking projection 21 is provided as a stop. The locking projection 21 is made of a thermoplastic resin such as polyethylene or polypropylene.

このＥＡ材１をドアトリム２０に取り付ける場合には、第３図（ｂ）の通り、各係止突起２１を取付部材１０の各係止部１１の挿入穴１４に差し込んでＥＡ材１をドアトリム２０のＥＡ材取付面に重ねる。その後、各係止突起２１の先端に溶着治具（図示略）を押し当て、第３図（ｂ）の通り各係止突起２１の先端を略円盤状に拡径させてフランジ状押さえ部２１ａを形成する。これにより、ＥＡ材１がドアトリム２０に固定される。   When the EA material 1 is attached to the door trim 20, as shown in FIG. 3B, the locking projections 21 are inserted into the insertion holes 14 of the locking portions 11 of the mounting member 10 to attach the EA material 1 to the door trim 20. Overlay the EA material mounting surface. Thereafter, a welding jig (not shown) is pressed against the tip of each locking projection 21, and the tip of each locking projection 21 is enlarged in a substantially disk shape as shown in FIG. Form. Thereby, the EA material 1 is fixed to the door trim 20.

［取付部材１０の作用効果］
本発明の取付部材１０は、ドアトリム２０に設けられた係止突起２１と係合する係止部１１を複数個有しており、これらの係止部１１同士が連結部１２によって連結されたものとなっている。そのため、この取付部材１０を用いてＥＡ材１を製造する場合には、係止部１１を１個だけ有した従来の取付部材を用いた場合に比べて、ＥＡ材成形用金型４０に取り付けるべき取付部材１０の個数を少なくすることが可能である。この実施の形態では、１個の取付部材１０が、ＥＡ材本体２の３箇所の張出部２ｂにそれぞれ配設される係止部１１を３個全て備えているため、この１個の取付部材１０をＥＡ材成形用金型４０に取り付けるだけでよい。これにより、ＥＡ材１の製造作業を簡略化することが可能となる。また、この取付部材１０にあっては、係止部１１同士が連結部１２によって連結されているため、各係止部１１が別々にＥＡ材本体２にインサートされる場合に比べて、該係止部１１同士の間のＥＡ材本体２の強度を向上させることが可能となる。 [Operational effect of mounting member 10]
The mounting member 10 of the present invention has a plurality of locking portions 11 that engage with locking protrusions 21 provided on the door trim 20, and these locking portions 11 are connected by a connecting portion 12. It has become. Therefore, when the EA material 1 is manufactured using the mounting member 10, the EA material 1 is attached to the EA material molding die 40 as compared with the case where a conventional mounting member having only one locking portion 11 is used. It is possible to reduce the number of the mounting members 10 to be reduced. In this embodiment, since one mounting member 10 includes all three locking portions 11 respectively disposed on the three overhanging portions 2b of the EA material body 2, this one mounting It is only necessary to attach the member 10 to the EA material molding die 40. Thereby, it becomes possible to simplify the manufacturing operation of the EA material 1. Moreover, in this attachment member 10, since the latching | locking part 11 is connected with the connection part 12, compared with the case where each latching | locking part 11 is separately inserted in the EA material main body 2, this engagement It becomes possible to improve the strength of the EA material main body 2 between the stop portions 11.

この実施の形態では、連結部１２に補強用リブ１７が設けられている。そのため、連結部１２を高強度とすることができる。また、この取付部材１０をＥＡ材本体２に埋設することにより、ＥＡ材本体２の強度を向上させることも可能である。   In this embodiment, the connecting portion 12 is provided with reinforcing ribs 17. Therefore, the connection part 12 can be made high strength. Further, the strength of the EA material main body 2 can be improved by embedding the mounting member 10 in the EA material main body 2.

この実施の形態では、連結部１２は、ＥＡ材本体２の背面に沿って配設される基片部１６と、該基片部１６からＥＡ材本体２の内方へ向って突設された補強用リブ１７とを有する略Ｔ字形断面形状となっているので、連結部１２を、ＥＡ材本体２の背面と垂直方向の荷重に対し十分な強度を有するように構成することが可能である。   In this embodiment, the connecting portion 12 is provided with a base piece portion 16 disposed along the back surface of the EA material main body 2, and projects from the base piece portion 16 toward the inside of the EA material main body 2. Since it has a substantially T-shaped cross section having the reinforcing ribs 17, it is possible to configure the connecting portion 12 to have sufficient strength against a load in a direction perpendicular to the back surface of the EA material body 2. .

この実施の形態では、補強用リブ１７は、各係止部１１に連なっているので、各係止部１１と連結部１２との連結強度を向上させることが可能である。   In this embodiment, since the reinforcing ribs 17 are continuous with the respective locking portions 11, the connection strength between the respective locking portions 11 and the connecting portion 12 can be improved.

かかる本発明の取付部材１０を備えたＥＡ材１にあっては、係止部１１を１個だけ有した取付部材を複数個備えてなる従来品に比べて、ＥＡ材本体２にインサートされる取付部材１０の個数が少なくて済む。特に、この実施の形態では、１個の取付部材１０が、ＥＡ材本体２の３箇所の張出部２ｂにそれぞれ配設される係止部１１を３個全て備えているため、ＥＡ材本体２にこの取付部材１０を１個インサートするだけで済む。そのため、比較的簡易な製造作業にて製造することが可能である。また、この取付部材１０は、係止部１１同士が連結部１２によって連結されているため、本発明のＥＡ材１は、各係止部１１が別々にＥＡ材本体２にインサートされたものに比べて、該係止部１１同士の間のＥＡ材本体２の強度が高くなるように構成することが可能である。   In the EA material 1 including the mounting member 10 according to the present invention, the EA material 1 is inserted into the EA material main body 2 as compared with a conventional product including a plurality of mounting members each having only one locking portion 11. The number of mounting members 10 can be small. In particular, in this embodiment, since one mounting member 10 includes all three locking portions 11 respectively disposed on the three overhang portions 2b of the EA material body 2, the EA material body It is only necessary to insert one mounting member 10 into 2. Therefore, it can be manufactured by a relatively simple manufacturing operation. Moreover, since this latching | locking part 11 is connected with the connection part 12 in this attachment member 10, the EA material 1 of this invention is the thing in which each latching | locking part 11 was inserted in the EA material main body 2 separately. In comparison, the strength of the EA material main body 2 between the locking portions 11 can be increased.

この実施の形態では、ＥＡ材本体２は、主体部２ａと、該主体部２ａからドアトリム２０に沿うように該主体部２ａの外方へ張り出した複数個の張出部２ｂとを有した形状となっており、これらの張出部２ｂにそれぞれ取付部材１０の係止部１１が配設されている。ＥＡ材本体２がこのような形状となっていると、各係止部１１が取付部材２０の各係止突起２１と係合した状態において該ＥＡ材本体２に荷重が加えられた場合には、各張出部２ｂの基端部に応力が集中する可能性がある。この実施の形態では、これらの係止部１１同士が連結部１２によって連結されており、この連結部１２が各張出部２ｂから主体部２ａにかけて延在しているため、各張出部２ｂの基端部がこの連結部１２によって補強され、耐久性が高いものとなっている。   In this embodiment, the EA material main body 2 has a shape having a main body portion 2a and a plurality of projecting portions 2b projecting outward from the main body portion 2a along the door trim 20 from the main body portion 2a. The locking portions 11 of the attachment member 10 are respectively disposed on these overhang portions 2b. When the EA material main body 2 has such a shape, when a load is applied to the EA material main body 2 in a state where each locking portion 11 is engaged with each locking projection 21 of the mounting member 20, The stress may concentrate on the base end portion of each overhang portion 2b. In this embodiment, these engaging portions 11 are connected to each other by a connecting portion 12, and since this connecting portion 12 extends from each overhang portion 2 b to the main body portion 2 a, each overhang portion 2 b. The base end portion is reinforced by the connecting portion 12 and has high durability.

本発明のＥＡ材１の取付構造にあっては、ドアトリム２０の複数個の係止突起２１をそれぞれ取付部材１０の各係止部１１と係合させることにより、ＥＡ材１がドアトリム２０に取り付けられる。本発明では、これらの係止部１１同士は連結部１２によって連結されているので、ＥＡ材本体２に加えられた荷重がこれらの係止部１１に広く分散され、局所的に応力が集中することが防止ないし緩和される。   In the attachment structure of the EA material 1 of the present invention, the EA material 1 is attached to the door trim 20 by engaging the plurality of locking projections 21 of the door trim 20 with the respective locking portions 11 of the mounting member 10. It is done. In this invention, since these latching | locking parts 11 are connected with the connection part 12, the load added to the EA material main body 2 is widely disperse | distributed to these latching | locking parts 11, and stress concentrates locally. This is prevented or alleviated.

［取付部材の連結部の別の構成例］
第４図及び第５図は、それぞれ、取付部材の係止部同士を連結した連結部の別の構成例を示す平面図である。 [Another configuration example of the connecting portion of the mounting member]
FIG. 4 and FIG. 5 are plan views each showing another configuration example of a connecting portion in which the locking portions of the attachment members are connected to each other.

上記の実施の形態における取付部材１０にあっては、連結部１２が、ＥＡ材本体２の主体部２ａの背面の４辺に沿って該主体部２ａの背面を周回するように方形枠状に延在した主体部配置部１２ａと、ＥＡ材本体２の各張出部２ｂの基端付近において該主体部配置部１２ａから各張出部２ｂに向ってそれぞれ延出した張出部配置部１２ｂとを有した形状となっているが、取付部材の形状はこれに限定されない。例えば、第４図の取付部材１０Ａのように、連結部１２の主体部配置部１２ａは、ＥＡ材本体２の主体部２ａの背面をその中央部から周縁部近傍まで覆う板状であってもよい。また、第５図の取付部材１０Ｂのように、連結部１２の主体部配置部１２ａは、主体部２ａの背面の中央付近から各張出部２ｂに向って放射状に枝分かれした形状であってもよい。第４，５図の取付部材１０Ａ，１０Ｂのその他の構成は、第１〜３図の取付部材１０と同様であり、第４，５図において第１〜３図と同一符号は同一部分を示している。なお、図示の形状はあくまで一例であり、連結部１２は、図示以外の形状であってもよい。   In the mounting member 10 in the above embodiment, the connecting portion 12 has a rectangular frame shape so as to go around the back surface of the main body portion 2a along the four sides of the back surface of the main body portion 2a of the EA material main body 2. An extended main body arrangement portion 12a and an extended portion arrangement portion 12b extending from the main body arrangement portion 12a toward each overhang portion 2b in the vicinity of the proximal end of each overhang portion 2b of the EA material main body 2. However, the shape of the mounting member is not limited to this. For example, like the attachment member 10A of FIG. 4, the main body arrangement portion 12a of the connecting portion 12 may be a plate that covers the back surface of the main body portion 2a of the EA material main body 2 from its central portion to the vicinity of the peripheral edge portion. Good. Further, like the attachment member 10B in FIG. 5, the main body arrangement portion 12a of the connecting portion 12 may have a shape that radially branches from the vicinity of the center of the back surface of the main body portion 2a toward each overhang portion 2b. Good. The other structures of the mounting members 10A and 10B shown in FIGS. 4 and 5 are the same as those of the mounting member 10 shown in FIGS. 1 to 3, and the same reference numerals in FIGS. ing. In addition, the shape of illustration is an example to the last, and the connection part 12 may be shapes other than illustration.

［取付部材の係止部の別の構成例］
上記の実施の形態では、各係止部１１の筒部１３の先端側にのみフランジ部１５が設けられているが、筒部１３の後端側にもフランジ部が設けられてもよい。 [Another configuration example of the locking portion of the mounting member]
In the above embodiment, the flange portion 15 is provided only on the distal end side of the cylindrical portion 13 of each locking portion 11, but the flange portion may be provided also on the rear end side of the cylindrical portion 13.

第６図は、このように構成された取付部材の係止部の断面図である。なお、第６図は、第１図（ｃ）と同様部分の断面を示している。この実施の形態では、筒部１３の後端側にも、該筒部１３の外周面から放射方向へ外向き鍔状に張り出すフランジ部１８が設けられている。この実施の形態では、この筒部１３の後端側のフランジ部１８は、該筒部１３の先端側のフランジ部１５と同一の形状及び大きさ（外径及び厚さ）となっているが、両者の形状や大きさは異なっていてもよい。この実施の形態における取付部材１０のその他の構成は、前述の実施の形態と同様であり、第６図において第１図と同一符号は同一部分を示している。   FIG. 6 is a cross-sectional view of the locking portion of the mounting member configured as described above. FIG. 6 shows a cross section of the same portion as FIG. 1 (c). In this embodiment, a flange portion 18 is also provided on the rear end side of the tubular portion 13 so as to project outwardly from the outer peripheral surface of the tubular portion 13 in the radial direction. In this embodiment, the flange portion 18 on the rear end side of the tubular portion 13 has the same shape and size (outer diameter and thickness) as the flange portion 15 on the distal end side of the tubular portion 13. The shape and size of the two may be different. The other structure of the mounting member 10 in this embodiment is the same as that of the above-mentioned embodiment, and the same code | symbol as FIG. 1 has shown the same part in FIG.

図示は省略するが、この実施の形態では、各係止部１１は、筒部１３、フランジ部１５の背面側及びフランジ部１８の前面側が各張出部２ｂに埋設される。   Although illustration is omitted, in this embodiment, in each of the locking portions 11, the tube portion 13, the back surface side of the flange portion 15 and the front surface side of the flange portion 18 are embedded in each overhang portion 2b.

なお、係止部１１は、筒部１３の後端側にのみフランジ部１８が設けられた構成であってもよい。本発明では、フランジ部１５，１８は省略されてもよい。   In addition, the latching | locking part 11 may be the structure by which the flange part 18 was provided only in the rear end side of the cylinder part 13. FIG. In the present invention, the flange portions 15 and 18 may be omitted.

［ＥＡ材本体の張出部の別の構成例］
上記の各実施の形態では、ＥＡ材本体２の各張出部２ｂの厚さは、係止部１１の筒部１３の筒軸心線方向の長さと同等となっているが、これらは同等でなくてもよい。例えば、第７図及び第８図のように、ＥＡ材本体２の各張出部２ｂの厚さは筒部１３の筒軸心線方向の長さよりも大きくてもよい。 [Another configuration example of the overhang portion of the EA material body]
In each of the embodiments described above, the thickness of each overhang portion 2b of the EA material main body 2 is equal to the length of the cylinder portion 13 of the locking portion 11 in the direction of the axis of the cylinder axis. Not necessarily. For example, as shown in FIGS. 7 and 8, the thickness of each overhang portion 2b of the EA material main body 2 may be larger than the length of the cylinder portion 13 in the cylinder axis direction.

第７図（ａ）は、張出部２ｂの厚さが筒部１３の筒軸心線方向の長さよりも大きい場合のＥＡ材本体２の構成例を示す断面図であり、第７図（ｂ）は、このＥＡ材本体２を成形するためのＥＡ材成形用金型４０の要部断面図である。   FIG. 7 (a) is a cross-sectional view showing a configuration example of the EA material main body 2 when the thickness of the overhang portion 2b is larger than the length of the cylindrical portion 13 in the cylinder axis direction. b) is a sectional view of an essential part of an EA material molding die 40 for molding the EA material body 2.

この実施の形態では、ＥＡ材本体２の各張出部２ｂの背面側に凹部２ｃが設けられており、各張出部２ｂにおいて、この凹部２ｃの底面と該張出部２ｂの前面との間に取付部材１０の各係止部１１が埋設されている。即ち、この実施の形態では、各張出部２ｂの厚さは、実質的に、各係止部１１の筒部１３の筒軸心線方向の長さと凹部２ｃの深さとを合計した大きさとなっている。   In this embodiment, a concave portion 2c is provided on the back side of each overhang portion 2b of the EA material body 2, and in each overhang portion 2b, the bottom surface of the concave portion 2c and the front surface of the overhang portion 2b are provided. Each locking part 11 of the mounting member 10 is embedded between them. That is, in this embodiment, the thickness of each overhanging portion 2b is substantially equal to the sum of the length of the cylindrical portion 13 of each locking portion 11 in the cylinder axis direction and the depth of the concave portion 2c. It has become.

この実施の形態では、各張出部２ｂにおいて、凹部２ｃは筒部１３と同心状に形成されている。該凹部２ｃは、奥側ほど（即ち各張出部２ｂの前面に接近するほど）径が小さくなるテーパ形状となっている。該凹部２ｃの底面から張出部２ｃの前面までの距離が筒部１３の筒軸心線方向の長さと実質的に同等となっている。この実施の形態では、各係止部１１は、第６図の実施の形態と同様に、筒部１３の前後両端側にフランジ部１５，１８がそれぞれ設けられた構成となっている。各張出部２ｂにおいて、各係止部１１は、筒部１３の先端側のフランジ部１５が該張出部２ｂの前面に露出し、後端側のフランジ部１８が凹部２ｃの底面に露出するように埋設されている。この実施の形態では、凹部２ｃの底面の直径は、挿入穴１４の内径よりも大きく且つフランジ部１８の外径よりも小さいものとなっている。なお、凹部２ｃの配置、形状及び大きさはこれに限定されない。例えば、凹部２ｃの底面の直径はフランジ部１８の外径と同等であってもよく、フランジ部１８の外径よりも大きくてもよい。また、取付部材１０の係止部１１は、第１図のように筒部１３の前端側にのみフランジ部１５が設けられた構成であってもよく、あるいはフランジ部１５，１８が省略された構成であってもよい。   In this embodiment, the recessed part 2c is formed concentrically with the cylinder part 13 in each overhang part 2b. The concave portion 2c has a tapered shape with a smaller diameter toward the back side (that is, closer to the front surface of each protruding portion 2b). The distance from the bottom surface of the concave portion 2c to the front surface of the overhang portion 2c is substantially equal to the length of the cylindrical portion 13 in the cylindrical axis direction. In this embodiment, each locking portion 11 has a configuration in which flange portions 15 and 18 are respectively provided on both the front and rear ends of the cylindrical portion 13 as in the embodiment of FIG. In each overhang portion 2b, each locking portion 11 includes a flange portion 15 on the front end side of the tube portion 13 exposed on the front surface of the overhang portion 2b, and a flange portion 18 on the rear end side exposed on the bottom surface of the recess 2c. It is buried to do. In this embodiment, the diameter of the bottom surface of the recess 2 c is larger than the inner diameter of the insertion hole 14 and smaller than the outer diameter of the flange portion 18. The arrangement, shape and size of the recess 2c are not limited to this. For example, the diameter of the bottom surface of the recess 2 c may be equal to the outer diameter of the flange portion 18 or may be larger than the outer diameter of the flange portion 18. Further, the engaging portion 11 of the mounting member 10 may have a configuration in which the flange portion 15 is provided only on the front end side of the cylindrical portion 13 as shown in FIG. 1, or the flange portions 15 and 18 are omitted. It may be a configuration.

第７図（ｂ）は、この凹部２ｃ付きＥＡ材本体２を成形するための発泡成形用金型４０の張出部成形用凹部４５付近の拡大断面図である。この実施の形態でも、下型４２の各張出部成形用凹部４５の底面から、それぞれ、取付部材１０の各係止部１１に係合する係合突起４３が突設されている。張出部成形用凹部４５の底面からの係合突起４３の突出高さは、実質的に、各係止部１１の筒部１３の筒軸心線方向の長さと同等か、それよりも若干（好ましくは０．１〜１ｍｍ特に０．１〜０．５ｍｍ程度）短いものとなっている。上型４１のキャビティ面からは、凹部２ｃを形成するための凹部形成用凸部４６が突設されている。この実施の形態では、各張出部成形用凹部４５の深さは、この凹部形成用凸部４６の突出高さ分だけ第２図よりも深くなっている（即ち、実質的に、この凹部形成用凸部４６の突出高さ分だけ第１図よりも厚さの大きい張出部２ｂが成形される）。この凹部形成用凸部４６の外形は、実質的に、凹部２ｃの内部形状と合致する形状となっている。即ち、この実施の形態では、該凹部形成用凸部４６は、先端（下端）側ほど直径が小さくなる切頭円錐形状となっている。この凹部形成用凸部４６は、下型４２の張出部成形用凹部４５と同数個設けられており、上型４１と下型４２とを型締めしたときに、それぞれ下型４２の各張出部成形用凹部４５内に配置され、その先端面（下端面）が係合突起４３の先端面（上端面）と対峙するようになっている。この際、各凹部形成用凸部４６は、各係合突起４３と同軸状に配置される。第７図（ａ）の通り、この型締め状態において、各凹部形成用凸部４６の先端面は、各係合突起４３に係合した係止部１１の後端側のフランジ部１８の背面に密着するか、又は若干（好ましくは０．１〜１ｍｍ特に０．１〜０．５ｍｍ程度）の隙間をあけて該フランジ部１８の背面に対峙する。   FIG. 7 (b) is an enlarged cross-sectional view of the vicinity of the overhanging portion forming recess 45 of the foam molding die 40 for forming the EA material body 2 with the recess 2c. Also in this embodiment, from the bottom surface of each overhang portion forming concave portion 45 of the lower mold 42, the engagement protrusions 43 that are engaged with the respective locking portions 11 of the attachment member 10 are projected. The protruding height of the engaging protrusion 43 from the bottom surface of the overhang forming concave portion 45 is substantially the same as or slightly longer than the length of the cylindrical portion 13 of each locking portion 11 in the cylinder axis direction. (Preferably about 0.1 to 1 mm, especially about 0.1 to 0.5 mm) It is short. From the cavity surface of the upper die 41, a concave portion forming convex portion 46 for forming the concave portion 2c is projected. In this embodiment, the depth of each overhang portion forming recess 45 is deeper than that of FIG. 2 by the protrusion height of the recess forming protrusion 46 (ie, substantially the recess The protruding portion 2b having a thickness larger than that of FIG. 1 is formed by the protruding height of the forming convex portion 46). The outer shape of the concave portion forming convex portion 46 is substantially the same shape as the inner shape of the concave portion 2c. That is, in this embodiment, the concave portion forming convex portion 46 has a truncated conical shape whose diameter decreases toward the tip (lower end) side. The same number of protrusions 46 for forming the recesses as the protrusions 45 for forming the protruding portion of the lower mold 42 are provided. When the upper mold 41 and the lower mold 42 are clamped, the respective protrusions 46 of the lower mold 42 are respectively provided. The distal end surface (lower end surface) is disposed in the protruding portion forming recess 45 so that the distal end surface (upper end surface) of the engaging protrusion 43 faces the end surface. At this time, each concave portion forming convex portion 46 is arranged coaxially with each engaging projection 43. As shown in FIG. 7 (a), in this mold-clamping state, the front end surface of each concave portion forming convex portion 46 is the back surface of the flange portion 18 on the rear end side of the locking portion 11 engaged with each engaging projection 43. Or with a slight gap (preferably about 0.1 to 1 mm, particularly about 0.1 to 0.5 mm) facing the back surface of the flange portion 18.

この実施の形態における取付部材１０、ＥＡ材本体２及びＥＡ材成形用金型４０のその他の構成は前述の実施の形態と同様であり、第７図（ａ），（ｂ）において第１〜３図と同一符号は同一部分を示している。   Other configurations of the mounting member 10, the EA material main body 2, and the EA material molding die 40 in this embodiment are the same as those in the above-described embodiment, and in FIGS. 7 (a) and 7 (b), first to first The same reference numerals as those in FIG. 3 denote the same parts.

上記の凹部形成用凸部４６付きＥＡ材成形用金型４０を用いたＥＡ材１の製造方法は、前述の実施の形態と同様である。この実施の形態では、各凹部形成用凸部４６の突出高さ分だけ第１図よりも厚さの大きい張出部２ｂが成形され、この凹部形成用凸部４６により、各張出部２ｂの背面に凹部２ｃが形成される。そして、前述の通り、各係止部１１の先端側のフランジ部１５が各張出部２ｂの前面に露出し、後端側のフランジ部１８が凹部２ｃの底面に露出したものとなる。   The manufacturing method of the EA material 1 using the EA material molding die 40 with the concave portion forming convex portion 46 is the same as that of the above-described embodiment. In this embodiment, a protruding portion 2b having a thickness larger than that of FIG. 1 is formed by the protruding height of each concave portion forming convex portion 46, and each of the protruding portions 2b is formed by the concave portion forming convex portion 46. A concave portion 2c is formed on the back surface. As described above, the flange portion 15 on the front end side of each locking portion 11 is exposed on the front surface of each overhang portion 2b, and the flange portion 18 on the rear end side is exposed on the bottom surface of the recess 2c.

なお、この実施の形態では各張出部２ｂの背面に凹部２ｃが設けられているが、各張出部２ｂの前面に凹部が設けられてもよい。   In this embodiment, the recess 2c is provided on the back surface of each overhang portion 2b. However, a recess may be provided on the front surface of each overhang portion 2b.

第８図（ａ）は、張出部２ｂの厚さが筒部１３の筒軸心線方向の長さよりも大きい場合のＥＡ材本体２のさらに別の構成例を示す断面図であり、第８図（ｂ）は、このＥＡ材本体２を成形するためのＥＡ材成形用金型の４０の要部断面図である。   FIG. 8 (a) is a cross-sectional view showing still another configuration example of the EA material main body 2 in the case where the thickness of the overhanging portion 2b is larger than the length of the cylindrical portion 13 in the cylindrical axis direction. FIG. 8 (b) is a cross-sectional view of the main part of an EA material molding die 40 for molding the EA material body 2.

この実施の形態では、各張出部２ｂの背面及び前面の双方に凹部２ｃ，２ｄが設けられており、各張出部２ｂにおいて、これらの凹部２ｃ，２ｄの底面同士の間に取付部材１０の各係止部１１が埋設されている。即ち、この実施の形態では、各張出部２ｂの厚さは、実質的に、各係止部１１の筒部１３の筒軸心線方向の長さとこれらの凹部２ｃ，２ｄの深さとを合計した大きさとなっている。   In this embodiment, recesses 2c and 2d are provided on both the back and front of each overhanging portion 2b, and in each overhanging portion 2b, the mounting member 10 is interposed between the bottom surfaces of these indentations 2c and 2d. Each of the locking portions 11 is embedded. That is, in this embodiment, the thickness of each overhanging portion 2b is substantially the same as the length of the cylindrical portion 13 of each locking portion 11 in the cylinder axis direction and the depth of these concave portions 2c and 2d. The total size.

この実施の形態では、各張出部２ｂにおいて、凹部２ｃ，２ｄはそれぞれ筒部１３と同心状に形成されている。各張出部２ｂの背面側の凹部２ｃの構成は、前述の第７図の実施の形態と同様である。この実施の形態では、各張出部２ｂの前面側の凹部２ｄは、奥側ほど（即ち各張出部２ｂの背面に接近するほど）径が小さくなるテーパ形状となっている。これらの凹部２ｃ，２ｄの底面同士の間隔が筒部１３の筒軸心線方向の長さと実質的に同等となっている。この実施の形態でも、各係止部１１は、第６図の実施の形態と同様に、筒部１３の前後両端側にフランジ部１５，１８がそれぞれ設けられた構成となっている。各張出部２ｂにおいて、各係止部１１は、筒部１３の先端側のフランジ部１５が凹部２ｄの底面に露出し、後端側のフランジ部１８が凹部２ｃの底面に露出するように埋設されている。この実施の形態では、凹部２ｄの底面の直径は、フランジ部１５の外径よりも大きなものとなっている。なお、各凹部２ｃ，２ｄの配置、形状及び大きさ等の構成はこれに限定されない。例えば、凹部２ｄの底面の直径はフランジ部１５の外径と同等であってもよく、フランジ部１５の外径よりも小さくてもよい。また、取付部材１０の係止部１１は、第１図のように筒部１３の前端側にのみフランジ部１５が設けられた構成であってもよく、あるいはフランジ部１５，１８が省略された構成であってもよい。   In this embodiment, in each overhang portion 2b, the recesses 2c and 2d are formed concentrically with the cylindrical portion 13, respectively. The configuration of the recess 2c on the back side of each overhang 2b is the same as that of the embodiment shown in FIG. In this embodiment, the concave portion 2d on the front surface side of each overhang portion 2b has a tapered shape whose diameter decreases toward the back side (that is, as it approaches the back surface of each overhang portion 2b). The distance between the bottom surfaces of these recesses 2c and 2d is substantially equal to the length of the cylindrical portion 13 in the direction of the axis of the cylindrical axis. Also in this embodiment, each locking portion 11 has a configuration in which flange portions 15 and 18 are provided on both the front and rear ends of the tube portion 13 as in the embodiment of FIG. In each overhang portion 2b, each locking portion 11 is such that the flange portion 15 on the front end side of the cylindrical portion 13 is exposed on the bottom surface of the recess portion 2d, and the flange portion 18 on the rear end side is exposed on the bottom surface of the recess portion 2c. Buried. In this embodiment, the diameter of the bottom surface of the recess 2 d is larger than the outer diameter of the flange portion 15. Note that the arrangement, shape, size, and the like of the recesses 2c, 2d are not limited to this. For example, the diameter of the bottom surface of the recess 2 d may be equal to the outer diameter of the flange portion 15 or may be smaller than the outer diameter of the flange portion 15. Further, the engaging portion 11 of the mounting member 10 may have a configuration in which the flange portion 15 is provided only on the front end side of the cylindrical portion 13 as shown in FIG. 1, or the flange portions 15 and 18 are omitted. It may be a configuration.

第８図（ｂ）は、この凹部２ｃ，２ｄ付きＥＡ材本体２を成形するための発泡成形用金型４０の張出部成形用凹部４５付近の拡大断面図である。この実施の形態では、各張出部成形用凹部４５の底面に、それぞれ、凹部２ｄを形成するための凹部形成用凸部４７が設けられている。この凹部形成用凸部４７の外形は、実質的に、凹部２ｄの内部形状と合致する形状となっている。即ち、この実施の形態では、該凹部形成用凸部４７は、先端（上端）側ほど直径が小さくなる切頭円錐形状となっている。この実施の形態では、各凹部形成用凸部４７の上面の中心から、それぞれ、取付部材１０の各係止部１１に係合する係合突起４３が突設されている。張出部成形用凹部４５の底面からの係合突起４３の突出高さは、実質的に、各係止部１１の筒部１３の筒軸心線方向の長さと同等か、それよりも若干（好ましくは０．１〜１ｍｍ特に０．１〜０．５ｍｍ程度）短いものとなっている。上型４１のキャビティ面からは、凹部２ｃを形成するための凹部形成用凸部４６が突設されている。この凹部形成用凸部４６の構成は、前述の第７図の実施の形態と同様である。なお、各凹部２ｃ，２ｄの配置、形状及び大きさ等の構成はこれに限定されない。   FIG. 8 (b) is an enlarged cross-sectional view of the vicinity of the overhanging portion forming recess 45 of the foam molding die 40 for forming the EA material body 2 with the recesses 2c and 2d. In this embodiment, a concave portion forming convex portion 47 for forming the concave portion 2d is provided on the bottom surface of each overhang portion forming concave portion 45, respectively. The outer shape of the concave portion forming convex portion 47 is substantially the same shape as the inner shape of the concave portion 2d. That is, in this embodiment, the concave portion forming convex portion 47 has a truncated conical shape whose diameter decreases toward the tip (upper end) side. In this embodiment, an engaging projection 43 that engages with each locking portion 11 of the mounting member 10 protrudes from the center of the upper surface of each concave portion forming convex portion 47. The protruding height of the engaging protrusion 43 from the bottom surface of the overhang forming concave portion 45 is substantially the same as or slightly longer than the length of the cylindrical portion 13 of each locking portion 11 in the cylinder axis direction. (Preferably about 0.1 to 1 mm, especially about 0.1 to 0.5 mm) It is short. From the cavity surface of the upper die 41, a concave portion forming convex portion 46 for forming the concave portion 2c is projected. The configuration of the concave portion forming convex portion 46 is the same as that of the embodiment shown in FIG. Note that the arrangement, shape, size, and the like of the recesses 2c, 2d are not limited to this.

この実施の形態では、各張出部成形用凹部４５の深さは、これらの凹部形成用凸部４６，４７の突出高さ分だけ第２図よりも深くなっている（即ち、実質的に、これらの凹部形成用凸部４６，４７の突出高さ分だけ第１図よりも厚さの大きい張出部２ｂが成形される）。   In this embodiment, the depth of each overhang forming recess 45 is deeper than that of FIG. 2 by the height of protrusion of these recess forming protrusions 46 and 47 (ie, substantially). The overhanging portion 2b having a thickness larger than that of FIG. 1 is formed by the protruding height of the convex portions 46 and 47 for forming these concave portions).

上型４１と下型４２とを型締めしたときには、上型４１の各凹部形成用凸部４６が下型４２の各張出部成形用凹部４５内に配置され、その先端面（下端面）が係合突起４３の先端面（上端面）と対峙するようになっている。この際、各凹部形成用凸部４６は、各係合突起４３と同軸状に配置される。この型締め状態において、各凹部形成用凸部４６の先端面は、各係合突起４３に係合した係止部１１の後端側のフランジ部１８の背面に密着するか、又は若干（好ましくは０．１〜１ｍｍ特に０．１〜０．５ｍｍ程度）の隙間をあけて該フランジ部１８の背面に対峙する。   When the upper die 41 and the lower die 42 are clamped, the respective concave portion forming convex portions 46 of the upper die 41 are arranged in the respective protruding portion forming concave portions 45 of the lower die 42, and their front end surfaces (lower end surfaces). Is opposed to the front end surface (upper end surface) of the engagement protrusion 43. At this time, each concave portion forming convex portion 46 is arranged coaxially with each engaging projection 43. In this mold-clamping state, the front end surface of each concave portion forming convex portion 46 is in close contact with the back surface of the flange portion 18 on the rear end side of the locking portion 11 engaged with each engaging projection 43 or slightly (preferably Is 0.1 to 1 mm, particularly about 0.1 to 0.5 mm), and is opposed to the back surface of the flange portion 18.

この実施の形態における取付部材１０、ＥＡ材本体２及びＥＡ材成形用金型４０のその他の構成は前述の実施の形態と同様であり、第８図（ａ），（ｂ）において第１〜３図及び第７図と同一符号は同一部分を示している。   Other configurations of the mounting member 10, the EA material main body 2, and the EA material molding die 40 in this embodiment are the same as those of the above-described embodiment, and in FIGS. 8 (a) and 8 (b), first to first The same reference numerals as those in FIGS. 3 and 7 denote the same parts.

上記の凹部形成用凸部４６，４７付きＥＡ材成形用金型４０を用いたＥＡ材１の製造方法は、前述の実施の形態と同様である。この実施の形態では、各凹部形成用凸部４６，４７の突出高さ分だけ第１図よりも厚さの大きい張出部２ｂが成形され、これらの凹部形成用凸部４６，４７により、各張出部２ｂの背面及び前面にそれぞれ凹部２ｃ，２ｄが形成される。そして、前述の通り、各係止部１１の先端側のフランジ部１５が凹部２ｄの底面に露出し、後端側のフランジ部１８が凹部２ｃの底面に露出したものとなる。   The manufacturing method of the EA material 1 using the EA material molding die 40 with the concave portions forming convex portions 46 and 47 is the same as that of the above-described embodiment. In this embodiment, the overhanging portion 2b having a thickness larger than that of FIG. 1 is formed by the protruding height of each of the concave portion forming convex portions 46, 47, and by these concave portion forming convex portions 46, 47, Concave portions 2c and 2d are formed on the back surface and front surface of each overhang portion 2b. As described above, the flange portion 15 on the front end side of each locking portion 11 is exposed on the bottom surface of the recess 2d, and the flange portion 18 on the rear end side is exposed on the bottom surface of the recess 2c.

なお、図示は省略するが、第７，８図とは逆に、ＥＡ材本体２の各張出部２ｂの厚さが筒部１３の筒軸心線方向の長さよりも小さくてもよい。   In addition, although illustration is abbreviate | omitted, contrary to FIG. 7, 8, the thickness of each overhang | projection part 2b of the EA material main body 2 may be smaller than the length of the cylinder part 13 in the cylinder axis direction.

［取付部材の発泡成形用金型への係合構造（取付部材係合部）の別の構成例］
上記の各実施の形態では、下型４２に設けられた各張出部成形用凹部４５の底面から、取付部材１０の各係止部１１に係合する取付部材係合部としての係合突起４３が突設されているが、取付部材係合部（係合突起４３）の配置はこれに限定されない。例えば、第９図のように、上型４１に取付部材係合部（係合突起４３）が設けられてもよい。第９図（ａ）は、このように上型４１に取付部材係合部が設けられたＥＡ材成形用金型４０の縦断面図であり、第９図（ｂ）は、このＥＡ材成形用金型４０の取付部材係合部付近における上型の拡大断面図である。 [Another example of the structure for engaging the mounting member with the foaming mold (mounting member engaging portion)]
In each of the above-described embodiments, the engagement protrusion as an attachment member engagement portion that engages with each locking portion 11 of the attachment member 10 from the bottom surface of each overhang portion forming recess 45 provided in the lower mold 42. However, the arrangement of the attachment member engaging portions (engagement protrusions 43) is not limited to this. For example, as shown in FIG. 9, the upper mold 41 may be provided with an attachment member engaging portion (engaging protrusion 43). FIG. 9 (a) is a longitudinal sectional view of the EA material molding die 40 in which the mounting member engaging portion is provided on the upper die 41 in this way, and FIG. 9 (b) is this EA material molding. It is an expanded sectional view of the upper mold in the vicinity of the attachment member engaging portion of the metal mold 40.

この実施の形態では、上型４１のキャビティ面から取付部材係合部としての係合突起４３が突設されている。上型４１のキャビティ面には、取付部材１０の各係止部１１の配置と対応する位置関係にて複数個の係合突起４３が配設されている。これらの係合突起４３は、それぞれ、第９図（ａ）の通り、上型４１と下型４２とを型締めしたときに、下型４２の各張出部成形用凹部４５内に配置され、その先端面（下端面）が該張出部成形用凹部４５の底面に対峙する。   In this embodiment, an engagement protrusion 43 as an attachment member engagement portion is provided so as to protrude from the cavity surface of the upper mold 41. On the cavity surface of the upper mold 41, a plurality of engagement protrusions 43 are arranged in a positional relationship corresponding to the arrangement of the locking portions 11 of the mounting member 10. As shown in FIG. 9A, these engaging projections 43 are arranged in the respective overhanging portion forming recesses 45 of the lower die 42 when the upper die 41 and the lower die 42 are clamped. The leading end surface (lower end surface) faces the bottom surface of the overhang portion forming recess 45.

上型４１のキャビティ面からの係合突起４３の起立高さは、第９図（ａ），（ｂ）の通り、各係止部１１の筒部１３の筒軸心線方向の長さと同等か、それよりも若干（好ましくは０．１〜１ｍｍ特に０．１〜０．５ｍｍ程度）短いものとなっている。各係合突起４３に取付部材１０の各係止部１１を係合させて上型４１と下型４２とを型締めしたときには、各係止部１１の筒部１３の先端面（即ちフランジ部１５）が下型４２の各張出部成形用凹部４５の底面に実質的に密着する（筒部１３の先端面と張出部成形用凹部４５の底面との間に好ましくは０．１〜１ｍｍ特に０．１〜０．３ｍｍ程度の隙間があく）ようになっている。   The standing height of the engaging projection 43 from the cavity surface of the upper die 41 is equal to the length of the cylindrical portion 13 of each locking portion 11 in the direction of the cylinder axis as shown in FIGS. 9 (a) and 9 (b). Or slightly shorter (preferably about 0.1 to 1 mm, especially about 0.1 to 0.5 mm). When the locking portions 11 of the mounting member 10 are engaged with the engaging protrusions 43 and the upper die 41 and the lower die 42 are clamped, the distal end surface (that is, the flange portion) of the cylindrical portion 13 of each locking portion 11. 15) substantially adheres to the bottom surface of each overhang forming recess 45 of the lower mold 42 (preferably between the tip surface of the tube portion 13 and the bottom surface of the overhang forming recess 45). 1 mm, especially 0.1 to 0.3 mm).

このＥＡ材成形用金型４０のその他の構成は前述の実施の形態と同様であり、第９図（ａ），（ｂ）において第２図と同一符号は同一部分を示している。   Other configurations of the EA material molding die 40 are the same as those of the above-described embodiment. In FIGS. 9 (a) and 9 (b), the same reference numerals as those in FIG.

この実施の形態では、ＥＡ材１を製造する場合には、まず、上型４１と下型４２とを型開きした状態において、第９図（ａ），（ｂ）の通り各係止部１１の筒部１３の後端側を上型４１側にして各係合突起４３を各係止部１１の挿入穴１４に挿入し、取付部材１０を上型４１のキャビティ面に取り付ける。その後、下型４２内にＥＡ材本体２の発泡合成樹脂原料を注入し、上型４１と下型４２とを型締めして該発泡合成樹脂原料を発泡させる。その後の工程は、前述の実施の形態と同様である。   In this embodiment, when the EA material 1 is manufactured, first, in a state where the upper die 41 and the lower die 42 are opened, the respective locking portions 11 as shown in FIGS. 9 (a) and 9 (b). With the rear end side of the cylindrical portion 13 facing the upper die 41, the engagement protrusions 43 are inserted into the insertion holes 14 of the locking portions 11, and the attachment member 10 is attached to the cavity surface of the upper die 41. Thereafter, the foamed synthetic resin raw material of the EA material body 2 is injected into the lower mold 42, and the upper mold 41 and the lower mold 42 are clamped to foam the foamed synthetic resin raw material. Subsequent steps are the same as those in the above-described embodiment.

［取付部材の係止部と被取付部材の被係止部との係合構造の別の構成例］
上記の実施の形態では、ドアトリム２０から突設された各係止突起２１を取付部材１０の各係止部１１の挿入穴１４に挿入した後、この係止突起２１の先端部に溶着治具を押し付けて拡径させることにより、ＥＡ材１をドアトリム２０に固定しているが、本発明における取付部材の係止部と被取付部材の被係止部との係合構造はこれに限定されない。 [Another configuration example of the engagement structure between the locking portion of the mounting member and the locked portion of the mounted member]
In the above embodiment, after each locking projection 21 projecting from the door trim 20 is inserted into the insertion hole 14 of each locking portion 11 of the mounting member 10, a welding jig is attached to the distal end portion of this locking projection 21. The EA material 1 is fixed to the door trim 20 by pressing and expanding the diameter, but the engagement structure of the locking portion of the mounting member and the locked portion of the mounted member in the present invention is not limited to this. .

第１０図（ａ）〜（ｃ）は、取付部材の係止部と被取付部材の被係止部との係合構造の別の構成例を示す断面図である。なお、第１０図（ａ）は、別の構成例に係る取付部材１０Ｃの係止部１１Ａの第１図（ｃ）と同様部分の断面図であり、第１０図（ｂ）は第１０図（ａ）のＢ−Ｂ線に沿う断面図であり、第１０図（ｃ）は、この係止部１１Ａと、別の構成例に係るドアトリム２０Ａの被係止部としての係止突起２１Ａとが係合した状態を示す、第１０図（ｂ）と同様部分の断面図である。   10 (a) to 10 (c) are cross-sectional views showing another configuration example of the engagement structure between the locking portion of the mounting member and the locked portion of the mounted member. FIG. 10 (a) is a cross-sectional view of the same portion as FIG. 1 (c) of the locking portion 11A of the mounting member 10C according to another configuration example, and FIG. 10 (b) is the same as FIG. It is sectional drawing which follows the BB line of (a), FIG.10 (c) is this latching | locking part 11A, and the latching protrusion 21A as a to-be-latched part of the door trim 20A which concerns on another structural example. It is sectional drawing of the same part as FIG.10 (b) which shows the state which engaged.

この実施の形態における取付部材１０Ｃは、第１０図（ａ），（ｂ）に示す係止部１１Ａを複数個備えており、これらの係止部１１Ａ同士が連結部１２によって連結されている。ドアトリム２０Ａには、この取付部材１０Ｃの各係止部１１Ａと弾性的に係合するように構成された複数個の係止突起２１Ａが設けられている。   The mounting member 10C in this embodiment includes a plurality of locking portions 11A shown in FIGS. 10 (a) and 10 (b), and these locking portions 11A are connected to each other by a connecting portion 12. The door trim 20A is provided with a plurality of locking projections 21A configured to be elastically engaged with the locking portions 11A of the mounting member 10C.

第１０図（ｃ）の通り、この係止突起２１Ａは、ドアトリム２０ＡのＥＡ材取付面から立設された１対の突出部２２と、これらの突出部２２から側方（各突出部２２の該ＥＡ材取付面からの突出方向と直交方向）へ張り出す爪部２３とを有している。これらの突出部２２は、相互間に所定の間隔をあけて配置されている。これらの突出部２２は、弾性を有した合成樹脂により形成されており、該突出部２２，２２同士は互いに接近方向に弾性的に変形可能となっている。なお、この実施の形態では、該突出部２２はドアトリム２０Ａと同一の材料により一体に形成されている。これらの突出部２２の側面からそれぞれ反対方向へ爪部２３が突設されている。各爪部２３は、各突出部２２の先端側ほど該突出部２２の側面からの張り出し高さが小さくなるテーパ形状となっている。   As shown in FIG. 10 (c), the locking projection 21A includes a pair of protrusions 22 erected from the EA material mounting surface of the door trim 20A, and a side (from each of the protrusions 22 of the protrusions 22). And a claw portion 23 projecting in a direction perpendicular to the projecting direction from the EA material mounting surface. These protrusions 22 are arranged at a predetermined interval between each other. These protrusions 22 are made of an elastic synthetic resin, and the protrusions 22 and 22 can be elastically deformed in the approaching direction. In this embodiment, the protrusion 22 is integrally formed of the same material as the door trim 20A. Claw portions 23 project from the side surfaces of the projecting portions 22 in opposite directions. Each claw portion 23 has a tapered shape in which the protruding height from the side surface of the protruding portion 22 decreases toward the distal end side of each protruding portion 22.

この実施の形態では、ドアトリム２０ＡのＥＡ材取付面からの各突出部２２の突出高さは、第１０図（ｃ）の通り、係止部１１Ａの筒部１３の筒軸心線方向の長さと実質的に同一か、それよりも若干小さいものとなっている。具体的には、各突出部２２の突出高さは、筒部１３の筒軸心線方向の長さの８５〜９５％特に８５〜９０％程度であることが好ましい。これにより、筒部１３の後端側がドアトリム２０ＡのＥＡ材取付面に当接するまで各突出部２２を係止部１１Ａの挿入穴１４に挿入した状態において、各突出部２２の先端が該筒部１３の先端面から突出しないようになっている。   In this embodiment, the protrusion height of each protrusion 22 from the EA material mounting surface of the door trim 20A is the length of the cylinder portion 13 of the locking portion 11A in the cylinder axis direction as shown in FIG. 10 (c). Is substantially the same as or slightly smaller than that. Specifically, the protruding height of each protruding portion 22 is preferably about 85 to 95%, particularly about 85 to 90%, of the length of the cylindrical portion 13 in the axial direction of the cylindrical axis. Thus, in the state where each protrusion 22 is inserted into the insertion hole 14 of the locking portion 11A until the rear end side of the tube portion 13 comes into contact with the EA material mounting surface of the door trim 20A, the tip of each protrusion 22 is the tube portion. 13 so as not to protrude from the tip surface.

このドアトリム２０Ａのその他の構成は、前述の実施の形態のドアトリム２０と同様である。   Other configurations of the door trim 20A are the same as those of the door trim 20 of the above-described embodiment.

この実施の形態では、取付部材１０Ｃの各係止部１１Ａは、挿入穴１４の内周面に、この係止突起２１Ａの各爪部２３が係合する係合部１９が設けられたものとなっている。この実施の形態では、該係合部１９は、筒部１３をその外周側から挿入穴１４まで貫通した貫通孔よりなる。即ち、挿入穴１４に係止突起２１Ａが挿入されると、該係止突起２１Ａの爪部２３がこの貫通孔に入り込んでこの貫通孔の縁部に係合するようになる。なお、係合部１９の構成はこれに限定されない。例えば、係合部１９は、挿入穴１４の内周面から該挿入穴１４の内方へ張り出した凸段部や、該挿入穴１４の内周面に凹設された凹段部等により形成されてもよい。   In this embodiment, each locking portion 11A of the mounting member 10C is provided with an engaging portion 19 that engages with each claw portion 23 of the locking projection 21A on the inner peripheral surface of the insertion hole 14. It has become. In this embodiment, the engaging portion 19 is formed of a through hole that penetrates the cylindrical portion 13 from the outer peripheral side to the insertion hole 14. That is, when the locking projection 21A is inserted into the insertion hole 14, the claw portion 23 of the locking projection 21A enters the through hole and engages with the edge of the through hole. In addition, the structure of the engaging part 19 is not limited to this. For example, the engaging portion 19 is formed by a convex stepped portion that protrudes inward from the inner peripheral surface of the insertion hole 14 or a concave step portion that is recessed in the inner peripheral surface of the insertion hole 14. May be.

この実施の形態では、挿入穴１４の内周面に、その周方向に間隔をおいて２個の係合部１９（貫通孔）が設けられている。各係合部１９を構成する貫通孔は、それぞれ、筒部１３をその直径方向に貫通しており、且つこれらの貫通孔同士は、筒部１３の軸心を挟んで正対するように配設されている。なお、係合部１９の個数や配置はこれに限定されない。この実施の形態では、第１０図（ａ）の通り、筒部１３の内周側から見た各係合部１９の形状（各係合部１９を構成する貫通孔の開口形状）は、直交する２辺が筒部１３の筒軸心線方向及びこれと直交方向に延在した略正方形状となっているが、係合部１９の形状はこれに限定されない。係合部１９の形状は、係止突起２１Ａの爪部２３の形状に応じて種々の形状とすることができる。あるいは、例えば取付部材１０Ｃの取付誤差を吸収するために、この係合部１９を構成する貫通孔を、筒部１３の周方向に長い長穴状としてもよい。   In this embodiment, two engaging portions 19 (through holes) are provided on the inner peripheral surface of the insertion hole 14 at intervals in the circumferential direction. The through-holes constituting each engaging portion 19 respectively penetrate the cylindrical portion 13 in the diameter direction, and these through-holes are arranged to face each other across the axis of the cylindrical portion 13. Has been. The number and arrangement of the engaging portions 19 are not limited to this. In this embodiment, as shown in FIG. 10 (a), the shape of each engaging portion 19 (opening shape of the through hole constituting each engaging portion 19) viewed from the inner peripheral side of the cylindrical portion 13 is orthogonal. However, the shape of the engaging portion 19 is not limited to this, but the two sides extend in a substantially square shape extending in the cylinder axis direction of the cylinder portion 13 and the direction orthogonal thereto. The shape of the engaging portion 19 can be various shapes depending on the shape of the claw portion 23 of the locking projection 21A. Alternatively, for example, in order to absorb an attachment error of the attachment member 10 </ b> C, the through hole constituting the engagement portion 19 may be formed in a long hole shape that is long in the circumferential direction of the cylindrical portion 13.

この実施の形態では、筒部１３の後端側にも、該筒部１３の外周面から放射方向へ外向き鍔状に張り出すフランジ部１８が設けられている。各係止部１１Ａは、第１０図（ｃ）の通り、筒部１３の先端側のフランジ部１５、該筒部１３、及び該筒部１３の後端側のフランジ部１８の前面側がＥＡ材本体２に埋設されるようにして該ＥＡ材本体２と一体化されている。この実施の形態では、ＥＡ材本体２は、その主体部から側方へ張り出す張出部２ｂを備えておらず、各係止部１１Ａは、ＥＡ材本体２の主体部に埋設されている。このＥＡ材本体２の主体部の背面の所定位置に各係止部１１Ａが埋設されて各々のフランジ部１８が露出しており、それらの中央にそれぞれ挿入穴１４が開口している。   In this embodiment, a flange portion 18 is also provided on the rear end side of the tubular portion 13 so as to project outwardly from the outer peripheral surface of the tubular portion 13 in the radial direction. As shown in FIG. 10 (c), each locking portion 11A has an EA material on the front side of the flange portion 15 on the distal end side of the cylindrical portion 13, the cylindrical portion 13, and the flange portion 18 on the rear end side of the cylindrical portion 13. It is integrated with the EA material main body 2 so as to be embedded in the main body 2. In this embodiment, the EA material main body 2 does not include the overhanging portion 2b that protrudes laterally from the main body portion, and each locking portion 11A is embedded in the main body portion of the EA material main body 2. . 11 A of each latching part is embed | buried in the predetermined position of the back surface of the main-body part of this EA material main body 2, each flange part 18 is exposed, and the insertion hole 14 has opened in the center, respectively.

この係止部１１Ａを備えた取付部材１０Ｃのその他の構成は、前述の各実施の形態における取付部材１０，１０Ａ又は１０Ｂと同様であり、第１０図（ａ）〜（ｃ）において第１〜５図と同一符号は同一部分を示している。   The other configuration of the mounting member 10C provided with the locking portion 11A is the same as that of the mounting member 10, 10A or 10B in each of the above-described embodiments. In FIGS. 10 (a) to 10 (c), first to first The same reference numerals as those in FIG. 5 denote the same parts.

この取付部材１０ＣがＥＡ材本体２と一体化されてなるＥＡ材１をドアトリム２０Ａに取り付ける場合、該ドアトリム２０Ａの各係止突起２１Ａを対応するＥＡ材１の各係止部１１Ａの挿入穴１４に挿入しつつ、ＥＡ材１をドアトリム２０Ａに押し付ける。この際、各係止突起２１Ａにおいては、各爪部２３が挿通穴１４の内周面に押し付けられることにより、突出部２２，２２同士が接近方向に撓みながら該挿入穴１４に差し込まれる。そして、第１０図（ｃ）の通り、各係止部１１Ａの後端側のフランジ部１８がドアトリム２０ＡのＥＡ材取付面に当接するまで突出部２２，２２が挿入穴１４に差し込まれると、各爪部２３が各係合部１９（貫通孔）に達する。これにより、突出部２２，２２同士を接近方向に撓ませていた力が解除されて該突出部２２，２２がそれぞれ元形状に復帰し、これにより各爪部２３が各係合部１９（貫通孔の縁部）に係合する。これにより、各係止部１１Ａが各係止突起２１Ａに係止され、ＥＡ材１がドアトリム２０Ａに取り付けられる。   When the EA material 1 in which the attachment member 10C is integrated with the EA material main body 2 is attached to the door trim 20A, the insertion protrusions 14A of the door trim 20A are inserted into the insertion holes 14 of the corresponding locking portions 11A of the EA material 1, respectively. The EA material 1 is pressed against the door trim 20A while being inserted into the door trim. At this time, in each locking projection 21 </ b> A, each claw portion 23 is pressed against the inner peripheral surface of the insertion hole 14, whereby the protruding portions 22 and 22 are inserted into the insertion hole 14 while being bent in the approaching direction. Then, as shown in FIG. 10 (c), when the protruding portions 22, 22 are inserted into the insertion holes 14 until the flange portion 18 on the rear end side of each locking portion 11A comes into contact with the EA material mounting surface of the door trim 20A, Each claw part 23 reaches each engagement part 19 (through hole). As a result, the force that has bent the protrusions 22 and 22 in the approaching direction is released, and the protrusions 22 and 22 return to their original shapes. Engaging the edge of the hole). Thereby, each latching | locking part 11A is latched by each latching protrusion 21A, and the EA material 1 is attached to the door trim 20A.

この実施の形態にあっては、ＥＡ材１をドアトリム２０Ａに取り付ける場合には、各係止突起２１Ａを各係止部１１Ａの挿入穴１４に挿入しつつＥＡ材１をドアトリム２０Ａに押し付けるだけでよいため、ＥＡ材１を容易にドアトリム２０Ａに取り付けることができる。   In this embodiment, when attaching the EA material 1 to the door trim 20A, it is only necessary to press the EA material 1 against the door trim 20A while inserting the locking projections 21A into the insertion holes 14 of the locking portions 11A. Therefore, the EA material 1 can be easily attached to the door trim 20A.

また、この実施の形態では、各係止突起２１Ａを各係止部１１Ａの挿入穴１４に挿入した後、各係止突起２１Ａの先端に押さえ部２１ａを形成する必要がないので、各係止部１１Ａの前面側は、ＥＡ材本体２の表面に露出させなくてもよい。これにより、ＥＡ材本体２に、各係止部１１Ａの筒部１３の長さと同等の厚さを有する張出部２ｂを複数個設けてこれらの張出部２ｂにそれぞれ各係止部１１Ａを配設する必要がなく、各係止部１１ＡをＥＡ材本体２の主体部に配設することができるので、各係止部１１Ａの配置の自由度が向上すると共に、ＥＡ材１を設置するのに要するスペースが比較的狭くても済む。   Further, in this embodiment, since each locking projection 21A is inserted into the insertion hole 14 of each locking portion 11A, it is not necessary to form the pressing portion 21a at the tip of each locking projection 21A. The front side of the portion 11A may not be exposed on the surface of the EA material main body 2. As a result, the EA material body 2 is provided with a plurality of overhang portions 2b having a thickness equivalent to the length of the cylindrical portion 13 of each lock portion 11A, and each lock portion 11A is provided in each of these overhang portions 2b. Since it is not necessary to arrange each locking portion 11A in the main body of the EA material main body 2, the degree of freedom of arrangement of each locking portion 11A is improved and the EA material 1 is installed. The space required for this can be relatively small.

この実施の形態のその他の作用効果は、前述の第１〜３図の実施の形態と同様である。   Other functions and effects of this embodiment are the same as those of the embodiment shown in FIGS.

［その他の構成］
上記の各実施の形態では、ドアトリムから被係止部として複数個の係止突起が突設され、取付部材の各係止部にはそれぞれこの係止突起が係合する挿入穴が設けられているが、これとは逆に、取付部材の各係止部からそれぞれ係止突起が突設され、ドアトリムにはこの係止突起がそれぞれ係合する複数個の挿入穴が設けられてもよい。 [Other configurations]
In each of the above-described embodiments, a plurality of locking projections are provided as a locked portion from the door trim, and an insertion hole is provided in each locking portion of the mounting member. However, on the contrary, a locking projection may be provided from each locking portion of the mounting member, and the door trim may be provided with a plurality of insertion holes for engaging the locking projection.

上記実施の形態はいずれも本発明の一例であり、本発明は上記以外の形態をもとりうる。   Each of the above embodiments is an example of the present invention, and the present invention may take other forms.

上記の実施の形態は、ＥＡ材及びその取付用取付部材、並びにそのドアトリムへの取付構造への本発明の適用例を示しているが、本発明は、これ以外の発泡成形部材及びその取付用取付部材、並びにその取付構造にも適用可能である。   Although the above embodiment shows an application example of the present invention to the EA material, its mounting mounting member, and its mounting structure to the door trim, the present invention is a foam molding member other than this and its mounting The present invention can also be applied to the mounting member and its mounting structure.

１ ＥＡ材（発泡成形部材）
２ ＥＡ材本体（発泡成形体）
１０，１０Ａ〜１０Ｃ 取付部材
１１，１１Ａ 係止部
１２ 連結部
１３ 筒部
１４ 挿入穴
１５ フランジ部
１６ 基片部
１７ 補強用リブ
１８ フランジ部
１９ 係合部
２０，２０Ａ ドアトリム
２１，２１Ａ 係止突起（被係止部）
２２ 突出部
２３ 爪部
４０ ＥＡ材成形用金型
４３ 係合突起（取付部材係合部） 1 EA material (foam molding member)
2 EA material body (foam molded body)
10, 10A to 10C Mounting member 11, 11A Locking portion 12 Connecting portion 13 Tube portion 14 Inserting hole 15 Flange portion 16 Base piece portion 17 Reinforcing rib 18 Flange portion 19 Engaging portion 20, 20A Door trim 21, 21A Locking protrusion (Locked part)
22 Protruding part 23 Claw part 40 EA material molding die 43 Engaging protrusion (attaching member engaging part)

Claims (6)

衝撃エネルギー吸収材としての発泡成形体を被取付部材に取り付けるための取付部材であって、
該被取付部材に設けられた被係止部と係合する係止部を備えており、
該発泡成形体とインサート成形により一体化される発泡成形体の取付部材において、
該取付部材は、
複数個の該係止部と、
該係止部同士を連結した連結部と
を備えており、
前記連結部に補強用リブが設けられており、
前記補強用リブは、前記係止部にそれぞれ連なっており、
前記連結部は、前記発泡成形体の前記被取付部材との対峙面に沿って配設される基片部を有しており、
該基片部から該対峙面と直交方向に前記補強用リブが突設されていることを特徴とする発泡成形体の取付部材。 An attachment member for attaching a foam molded article as an impact energy absorbing material to a member to be attached,
It has a locking part that engages with a locked part provided on the mounted member,
In the mounting member of the foam molded body integrated with the foam molded body by insert molding,
The mounting member is
A plurality of the locking portions;
A connecting portion connecting the locking portions to each other;
Reinforcing ribs are provided in the connecting part,
The reinforcing ribs are respectively connected to the locking portions ,
The connecting portion has a base piece portion disposed along a facing surface of the foamed molded product with the attached member,
A mounting member for a foamed molded article , wherein the reinforcing rib protrudes from the base piece in a direction orthogonal to the facing surface . 請求項１において、前記係止部と前記連結部とが同一材料よりなることを特徴とする発泡成形体の取付部材。   2. The foam molded body mounting member according to claim 1, wherein the engaging portion and the connecting portion are made of the same material. 請求項１又は２において、前記連結部は、ＡＢＳ樹脂、ポリプロピレン樹脂、ポリカーボネート樹脂、ポリスチレン樹脂、又はポリアセタール樹脂よりなることを特徴とする発泡成形体の取付部材。   3. The foamed molded article mounting member according to claim 1, wherein the connecting portion is made of an ABS resin, a polypropylene resin, a polycarbonate resin, a polystyrene resin, or a polyacetal resin. 発泡成形体と、
該発泡成形体とインサート成形により一体化された発泡成形体の取付部材と
を有する発泡成形部材であって、
前記取付部材は、衝撃エネルギー吸収材としての前記発泡成形体を被取付部材に取り付けるためのものであって、該被取付部材に設けられた被係止部と係合する複数個の係止部と、該係止部同士を連結した連結部とを備えており、
前記連結部に補強用リブが設けられており、
前記補強用リブは、前記係止部にそれぞれ連なっており、
前記発泡成形体は、主体部と、該主体部から被取付部材に沿うように該主体部の外方へ張り出した複数個の張出部とを有しており、
該張出部にそれぞれ前記取付部材の前記係止部が配設されており、各張出部から該主体部にかけて前記連結部が延在していることを特徴とする発泡成形部材。 A foam molded body,
A foam part having a mounting member of the foam molded article and insert molding the integrated foamed molded article,
The attachment member is for attaching the foamed molded body as an impact energy absorbing material to a member to be attached, and a plurality of locking portions that engage with a portion to be locked provided on the member to be attached. And a connecting part that connects the locking parts to each other,
Reinforcing ribs are provided in the connecting part,
The reinforcing ribs are respectively connected to the locking portions,
The foamed molded body has a main body part and a plurality of projecting parts projecting outward from the main body part along the attached member from the main body part,
The foam molding member, wherein the locking portion of the attachment member is disposed in each of the overhang portions, and the connecting portion extends from each overhang portion to the main body portion . 請求項４に記載の発泡成形部材を製造するための方法であって、
発泡成形体成形用金型の内面に設けられた複数個の取付部材係合部にそれぞれ前記取付部材の前記係止部を係合させて該取付部材を該発泡成形体成形用金型の内面に設置する取付部材設置工程と、
該取付部材設置工程の後、該発泡成形体成形用金型内で前記発泡成形体を発泡成形する発泡成形工程と
を有していることを特徴とする発泡成形部材の製造方法。 A method for producing a foam molded member according to claim 4 , comprising:
An engaging surface of the mounting member is engaged with a plurality of mounting member engaging portions provided on the inner surface of the foam molded body molding die, and the mounting member is used as an inner surface of the foam molded body molding die. A mounting member installation process to be installed in
A foam molding member manufacturing method, comprising: a foam molding step of foam molding the foam molded body in the foam molding body molding die after the mounting member installation step. 請求項４に記載の発泡成形部材を被取付部材に取り付けた構造であって、
該被取付部材に設けられた複数個の被係止部がそれぞれ前記取付部材の前記係止部と係合したことにより、該発泡成形部材が該被取付部材に取り付けられていることを特徴とする発泡成形部材の取付構造。
The foam molded member according to claim 4 is attached to a member to be attached,
The foam molded member is attached to the attached member by engaging a plurality of engaged portions provided on the attached member with the engaging portions of the attaching member, respectively. Mounting structure for foam molded member.
JP2010197845A 2010-09-03 2010-09-03 Foam molded body mounting member, foam molded member, foam molded member manufacturing method, and foam molded member mounting structure Expired - Fee Related JP5881281B2 (en)

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