JP4675035B2 - Clip holding structure for mounting impact energy absorber and mold for mounting shock energy absorber and clip for mounting impact energy absorber - Google Patents

Clip holding structure for mounting impact energy absorber and mold for mounting shock energy absorber and clip for mounting impact energy absorber Download PDF

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JP4675035B2
JP4675035B2 JP2003284020A JP2003284020A JP4675035B2 JP 4675035 B2 JP4675035 B2 JP 4675035B2 JP 2003284020 A JP2003284020 A JP 2003284020A JP 2003284020 A JP2003284020 A JP 2003284020A JP 4675035 B2 JP4675035 B2 JP 4675035B2
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clip
impact energy
mounting
mold
locking projection
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JP2005047225A (en
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雅敏 佐藤
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Bridgestone Corp
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Bridgestone Corp
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Description

本発明は衝撃エネルギー吸収材（以下、ＥＡ材と略す。）取付用クリップに関する。また、本発明は、ＥＡ材成形用金型のＥＡ材取付用クリップ保持構造に関する。 The invention shock energy absorber (hereinafter abbreviated as EA material.) Relates to a clip for attachment. The present invention also relates to a clip holding structure for EA member mounting of E A Zainal form a mold.

自動車のドアトリムには、側面衝突（側突）時の衝撃エネルギー吸収（Ｅｎｅｒｇｙ Ａｂｓｏｒｐｔｉｏｎ：ＥＡ）のために、硬質ウレタンよりなるＥＡ材を取り付けている。このドアトリムに対し、硬質ウレタン製ＥＡ材を取り付ける方法として、特開２００１−３２２５０７号には、図７，８に示す構造が記載されている。図７は同号公報の図７に記載されたＥＡ材の取付構造を示す断面図、図８（ａ）はこの構造に用いられている筒状体２０の斜視図、図８（ｂ）はこの筒状体２０の断面斜視図である。   An EA material made of hard urethane is attached to a door trim of an automobile for energy absorption (EA) at the time of a side collision (side collision). As a method of attaching the hard urethane EA material to the door trim, Japanese Patent Application Laid-Open No. 2001-322507 describes the structure shown in FIGS. 7 is a cross-sectional view showing the EA material mounting structure described in FIG. 7 of the publication, FIG. 8A is a perspective view of the cylindrical body 20 used in this structure, and FIG. 2 is a cross-sectional perspective view of the cylindrical body 20. FIG.

この筒状体２０は筒部２１及び張出部２２を一体に備えている。この筒部２１の先端からは内向きに爪部２３が設けられている。トリム３１から突設されたロッド２６の外周面に凹部２７が周設されており、爪部２３が該凹部２７に係合している。   The cylindrical body 20 is integrally provided with a cylindrical portion 21 and an overhang portion 22. A claw portion 23 is provided inward from the tip of the tube portion 21. A concave portion 27 is provided on the outer peripheral surface of the rod 26 protruding from the trim 31, and the claw portion 23 is engaged with the concave portion 27.

なお、筒部２１には先端から筒部２１の軸心線と平行方向にスリット２４が延設されており、筒部２１はその拡径方向に弾性的に変形可能となっている。   Note that a slit 24 extends from the tip of the tube portion 21 in a direction parallel to the axial center line of the tube portion 21, and the tube portion 21 can be elastically deformed in the diameter increasing direction.

ＥＡ材３３をトリム３１に取り付けるには、ＥＡ材３３の取付孔３４にロッド２６が挿入されるようにＥＡ材３３をトリム３１の面に沿わせ、次いで筒状体２０をロッド２６に嵌合させて押し込み、爪部２３を凹部２７に係合させる。これにより、張出部２２はＥＡ材３３の取付孔３４の周縁部を押さえつける。   To attach the EA material 33 to the trim 31, place the EA material 33 along the surface of the trim 31 so that the rod 26 is inserted into the attachment hole 34 of the EA material 33, and then fit the cylindrical body 20 to the rod 26. Then, the claw portion 23 is engaged with the concave portion 27. Thereby, the overhanging portion 22 presses the peripheral edge portion of the mounting hole 34 of the EA material 33.

なお、この筒部２１は先細形のテーパ形状となっており、取付孔３４に挿入し易いものとなっている。筒状体２０をロッド２６に装着した状態にあっては、筒部２１の外周面が取付孔３４の内周面に密着している。   The cylindrical portion 21 has a tapered shape that is easy to insert into the mounting hole 34. When the cylindrical body 20 is mounted on the rod 26, the outer peripheral surface of the cylindrical portion 21 is in close contact with the inner peripheral surface of the mounting hole 34.

このＥＡ材の取付構造にあっては、筒状体２０とＥＡ材３３とが別体となっているため、ＥＡ材をトリム３１に取り付けるに際しては、ＥＡ材をトリム３１に当てがう作業と、その後ロッド２６に筒状体２０を嵌着させる作業との２作業工程が必要となり、作業に手間がかかる。   In this EA material mounting structure, since the cylindrical body 20 and the EA material 33 are separated, when attaching the EA material to the trim 31, the work of applying the EA material to the trim 31 Then, two work steps including the work of fitting the cylindrical body 20 to the rod 26 are necessary, and the work is troublesome.

ＥＡ材のトリム等の部材への取り付け作業性が著しく改善されたＥＡ材の取付構造として、図６に記載の構造が考えられている。図６（ａ）はこのＥＡ材の取付構造を示す略水平方向の断面図、図６（ｂ）はこのＥＡ材の取付構造の係止部の斜視図、図６（ｃ）はこのＥＡ材の取付構造の被係止部の斜視図である。   The structure shown in FIG. 6 is considered as an EA material attachment structure in which the workability of attaching the EA material to a member such as a trim is remarkably improved. 6A is a cross-sectional view of the EA material mounting structure in a substantially horizontal direction, FIG. 6B is a perspective view of a locking portion of the EA material mounting structure, and FIG. 6C is the EA material. It is a perspective view of the to-be-latched part of this attachment structure.

硬質ウレタンフォーム等の合成樹脂よりなるＥＡ材１が部材としてのトリム（例えばドアトリム）２に対し係止部３及びクリップと称される被係止部４を介して取り付けられている。被係止部４は該ＥＡ材１に設けられており、係止部３は該被係止部４に係合している。   An EA material 1 made of a synthetic resin such as rigid urethane foam is attached to a trim (for example, door trim) 2 as a member via a locking portion 3 and a locked portion 4 called a clip. The locked portion 4 is provided on the EA material 1, and the locking portion 3 is engaged with the locked portion 4.

この係止部３は、トリム２から立設された１対の突起８，８よりなる。この突起８の突出方向の側面には、側方に張り出すように爪部８ａが設けられている。この爪部８ａは、突起８の基端側を構成する略半円柱部８ｂに接近するほど側方への張り出し高さが大きくなっている。これにより、突起８，８は後述する被係止部４の開口１２に容易に挿入可能である。   The locking portion 3 is composed of a pair of protrusions 8 and 8 erected from the trim 2. A claw portion 8a is provided on the side surface of the protrusion 8 in the protruding direction so as to protrude laterally. As the claw portion 8a approaches the substantially semi-cylindrical portion 8b constituting the proximal end side of the protrusion 8, the protruding height toward the side increases. Thereby, the protrusions 8 and 8 can be easily inserted into the opening 12 of the locked portion 4 described later.

突起８は、弾性を有した合成樹脂により成形されており、該突起８，８は接近方向に弾性的に変形可能となっている。   The protrusion 8 is formed of an elastic synthetic resin, and the protrusions 8 and 8 can be elastically deformed in the approaching direction.

被係止部（クリップ）４は、筒部６と、該筒部６の後端から外向き鍔状に張り出すアンカー５と、筒部６の先端から外向き鍔状に張り出すフランジ７とを有する。この被係止部４には、フランジ７、筒部６及びアンカー５を貫通する円筒形の開口１２がこれらの軸心線方向に設けられ、この円筒形の開口１２の内周面には周方向に段部１３が凹設されている。   The locked portion (clip) 4 includes a cylindrical portion 6, an anchor 5 that protrudes outwardly from the rear end of the cylindrical portion 6, and a flange 7 that protrudes outwardly from the distal end of the cylindrical portion 6. Have The locked portion 4 is provided with a cylindrical opening 12 penetrating the flange 7, the cylindrical portion 6, and the anchor 5 in the axial center line direction. A step 13 is recessed in the direction.

図６（ａ）の通り、被係止部４は、その筒部６及びアンカー５がＥＡ材１中に埋設されている。   As shown in FIG. 6A, the locked portion 4 has a cylindrical portion 6 and an anchor 5 embedded in the EA material 1.

この被係止部４付きのＥＡ材１は、突起８，８を開口１２に差し込みながらトリム２に当てがうことにより該トリム２に取り付けられる。ＥＡ材１をトリム２に押し付けると、突起８，８が開口１２に押し込まれる。爪部８ａが開口１２の内周面に押し付けられることにより、該突起８，８が接近方向に撓みながら開口１２に差し込まれる。そして、爪部８ａが段部１３に達すると、突起８，８が弾性的に元の形状に復帰しようとし、爪部８ａとトリム２とで、段部１３の縁部を挟持する。また、突起８，８の略半円柱部８ｂ、８ｂの外周面が被係止部４の開口１２内周面と当接する。   The EA material 1 with the locked portion 4 is attached to the trim 2 by applying the projections 8 and 8 to the trim 2 while inserting them into the openings 12. When the EA material 1 is pressed against the trim 2, the protrusions 8 are pushed into the opening 12. When the claw portion 8a is pressed against the inner peripheral surface of the opening 12, the protrusions 8 and 8 are inserted into the opening 12 while being bent in the approaching direction. Then, when the claw portion 8a reaches the step portion 13, the protrusions 8 and 8 try to elastically return to the original shape, and the claw portion 8a and the trim 2 sandwich the edge portion of the step portion 13. Further, the outer peripheral surfaces of the substantially semi-cylindrical portions 8 b and 8 b of the protrusions 8 and 8 come into contact with the inner peripheral surface of the opening 12 of the locked portion 4.

このように、被係止部４付きのＥＡ材１をトリム２に重ねるという１作業工程のみでＥＡ材１をトリム２に取り付けることができ、取付作業効率が著しく向上する。また、突起８，８の爪部８ａ，８ａとトリム２とで段部１３の縁部を挟持し、かつ略半円柱部８ｂ、８ｂ外周面と開口１２内周面とが当接しているので、ＥＡ材１がトリム２の面方向及び接離方向のいずれにも不動であり、ＥＡ材１の取付がきわめてしっかりしたものとなる。   As described above, the EA material 1 can be attached to the trim 2 only by one work process of superimposing the EA material 1 with the locked portion 4 on the trim 2, and the attachment work efficiency is remarkably improved. Further, the claw portions 8a, 8a of the projections 8, 8 and the trim 2 sandwich the edge of the step portion 13, and the outer peripheral surfaces of the substantially semi-cylindrical portions 8b, 8b are in contact with the inner peripheral surface of the opening 12. The EA material 1 is immovable in both the surface direction and the contact / separation direction of the trim 2, and the attachment of the EA material 1 becomes extremely firm.

図６（ａ）の通り、被係止部４は、そのフランジ７の一部、筒部６及びアンカー５がＥＡ材１中に埋設されている。このように被係止部４がＥＡ材１を貫通しておらず、被係止部４付近においてもＥＡ材１が十分な厚みを有しているところから、この被係止部４付近においてもＥＡ材１の衝撃吸収特性が良好である。
特開２００１−３２２５０７号 As shown in FIG. 6A, in the locked portion 4, a part of the flange 7, the cylindrical portion 6 and the anchor 5 are embedded in the EA material 1. As described above, since the locked portion 4 does not penetrate the EA material 1 and the EA material 1 has a sufficient thickness in the vicinity of the locked portion 4, in the vicinity of the locked portion 4. The EA material 1 also has good shock absorption characteristics.
JP 2001-322507 A

上記のクリップ（被取付材）４付きのＥＡ材１は、該クリップ４をピンにより金型の内面に保持しておき、該金型内でウレタン等の発泡成形を行うことにより製造されるのであるが、クリップ４が発泡する樹脂に押されて動くと成形不良となってしまう。発泡するまでは、クリップを金型にしっかりと保持しておきたいが、脱型時にはピンから容易に抜けなければならない。ピンとクリップのバラツキを吸収して、上記のような嵌合力を安定して確保したい。   The EA material 1 with the clip (attachment material) 4 is manufactured by holding the clip 4 on the inner surface of the mold with a pin and performing foam molding of urethane or the like in the mold. However, if the clip 4 is pushed and moved by the foaming resin, molding failure occurs. I want to keep the clip firmly in the mold until it foams, but it must be easily removed from the pin when it is removed. I want to absorb the variation of the pin and the clip and secure the above-mentioned fitting force stably.

本発明は、ＥＡ材成形用金型の内面にＥＡ材取付用クリップを容易に且つしっかりと保持しておくことができ、脱型時にはピンから抜けやすいＥＡ材成形用金型のＥＡ材取付用クリップ保持構造と、この構造及び方法に用いることができるＥＡ材取付用クリップとを提供することを目的とする。 The present invention easily and securely hold the clip EA material attached to the inner surface of the EA material molding die can keep, for EA member mounting the easy exit from the pin EA member molding die at the time of demolding a clip holding structure, to provide a clip EA member mounting that can be used in the structures and methods this interest.

本発明のＥＡ材成形用金型のＥＡ材取付用クリップ保持構造は、衝撃エネルギー吸収材を成形するための金型の内面に、部材に衝撃エネルギー吸収材を取り付けるための衝撃エネルギー吸収材取付用クリップを保持した構造であって、該金型の内面からクリップ係止用突起が突設され、衝撃エネルギー吸収材取付用クリップには該クリップ係止用突起が差し込まれる差込穴が設けられており、該差込穴にクリップ係止用突起が差し込まれることにより該衝撃エネルギー吸収材取付用クリップが金型の内面に保持されている衝撃エネルギー吸収材成形用金型の衝撃エネルギー吸収材取付用クリップ保持構造において、該差込穴の内面に、該差込穴の内方へ張り出す凸部が設けられており、該凸部は、該差込穴に該クリップ係止用突起が差し込まれたときに、該クリップ係止用突起の外面に当接し、該差込穴の内面と該クリップ係止用突起の外面との間で押し縮められるものであり、該凸部は、該クリップ係止用突起の該差込穴への挿抜方向に延在したリブよりなることを特徴とするものである。 The clip holding structure for attaching an EA material to an EA material molding die according to the present invention is for attaching an impact energy absorbing material for attaching an impact energy absorbing material to a member on an inner surface of a die for molding the impact energy absorbing material. A clip holding structure is provided with a clip locking projection protruding from the inner surface of the mold, and the impact energy absorbing material mounting clip has an insertion hole into which the clip locking projection is inserted. For mounting the impact energy absorbing material of the molding tool for impact energy absorbing material, the clip for mounting the impact energy absorbing material is held on the inner surface of the mold by inserting the protrusion for clip engagement into the insertion hole. the clip holding structure, the inner surface of the difference plug-in hole, and the convex portion is provided projecting inward of the difference plug-in hole, convex portion, said clip retaining projection is inserted to the difference plug-in hole When the, contact with the outer surface of the projections for the clip locking, which is contracted pressed between the inner and outer surfaces of the clip retaining projection of the difference plug-in hole, convex portion, said clip engaging It consists of the rib extended in the insertion / extraction direction to this insertion hole of the stop protrusion.

かかるＥＡ材成形用金型のＥＡ材取付用クリップ保持構造によると、ＥＡ材取付用クリップが金型にきわめてしっかりと保持される。 According to EA member mounting clip holding structure according EA member molding die, EA member mounting clip is very securely held in the mold.

本発明のＥＡ材取付用クリップは、部材に衝撃エネルギー吸収材を取り付けるためのクリップであって、該衝撃エネルギー吸収材を成形するための金型の内面に設けられたクリップ係止用突起が差し込まれる差込穴を有した衝撃エネルギー吸収材取付用クリップにおいて、該差込穴の内面に、該差込穴の内方へ張り出す凸部が設けられており、該凸部は、該差込穴に該クリップ係止用突起が差し込まれたときに、該クリップ係止用突起の外面に当接し、該差込穴の内面と該クリップ係止用突起の外面との間で押し縮められるものであり、該凸部は、該クリップ係止用突起の該差込穴への挿抜方向に延在したリブよりなることを特徴とするものである。 The clip for attaching an EA material of the present invention is a clip for attaching an impact energy absorbing material to a member, and a clip locking projection provided on the inner surface of a mold for molding the impact energy absorbing material is inserted. in the impact energy absorber mounting clip having an insertion hole that is, the inner surface of the difference plug-in hole, and the convex portion is provided projecting inward of the difference plug-in hole, the convex portion, the difference write When the clip locking projection is inserted into the hole, it abuts the outer surface of the clip locking projection and is compressed between the inner surface of the insertion hole and the outer surface of the clip locking projection. The convex portion is formed of a rib extending in the insertion / extraction direction of the clip locking projection into the insertion hole.

このクリップは、ＥＡ材成形用金型にしっかりと保持される。   This clip is securely held in the EA material molding die.

本発明によると、ＥＡ材取り付け用のクリップを備えたＥＡ材の製造歩留りが向上する。 According to the present invention, the production yield of the EA material provided with the clip for attaching the EA material is improved.

以下、本発明の一形態について図面を参照して説明する。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

図１（ａ）は本発明の一形態に係るＥＡ材取付用クリップと金型との関係を示す縦断面図、図１（ｂ）はこのクリップを保持した金型の部分拡大断面図、図２はこのクリップの分解斜視図である。図３はこのクリップと金型との係合関係を示す斜視図、図４はこのクリップを備えたＥＡ材のトリムへの取付方法を示す断面図である。   FIG. 1A is a longitudinal sectional view showing the relationship between an EA material mounting clip and a mold according to one embodiment of the present invention, and FIG. 1B is a partially enlarged sectional view of a mold holding the clip. 2 is an exploded perspective view of the clip. FIG. 3 is a perspective view showing the engagement relationship between the clip and the mold, and FIG. 4 is a cross-sectional view showing a method of attaching the EA material provided with the clip to the trim.

このＥＡ材取付用クリップ４０は、クリップ本体４１と、該クリップ本体の一方の端面（図１の上端面）に取り付けられた封体４８とからなる。   The EA material attaching clip 40 includes a clip main body 41 and a sealing body 48 attached to one end face (the upper end face in FIG. 1) of the clip main body.

クリップ本体４１は、合成樹脂の射出成形品よりなるものであり、一端面（図の下端面）から他端面（図の上端面）にまで貫通する貫通孔４２を有する。この形態では、貫通孔４２は角孔状であり、後述のクリップ係止ピン５０は角柱状であるが、これらは丸孔状と円柱状とであってもよい。   The clip body 41 is made of an injection molded product of synthetic resin, and has a through hole 42 that penetrates from one end surface (lower end surface in the drawing) to the other end surface (upper end surface in the drawing). In this embodiment, the through hole 42 is a square hole shape, and a clip locking pin 50 described later is a prismatic shape, but these may be a round hole shape and a cylindrical shape.

この貫通孔４２は、一端側と他端側とが大口径部４２ａ、４２ｃとなっており、両者の間が小口径部４２ｂとなっている。この小口径部４２ｂと大口径部４２ｃとの間に段部４３が形成されている。   The through hole 42 has a large-diameter portion 42a and 42c at one end side and the other end side, and a small-diameter portion 42b between the two. A stepped portion 43 is formed between the small diameter portion 42b and the large diameter portion 42c.

クリップ本体４１の該他端側に、外向き鍔状のアンカー４４が設けられている。一端側にはフランジ部４５が設けられている。フランジ部４５に隣接する部分はテーパ部４６となっている。   An outwardly hooked anchor 44 is provided on the other end side of the clip body 41. A flange portion 45 is provided on one end side. A portion adjacent to the flange portion 45 is a tapered portion 46.

小口径部４２ｂの内面に凸部４７が設けられている。この形態では、凸部４７はクリップ係止ピン５０の挿抜方向に延在したリブよりなり、小口径部４２ｂの中心を挟んで両側に配置されている。   A convex portion 47 is provided on the inner surface of the small diameter portion 42b. In this form, the convex part 47 consists of the rib extended in the insertion / extraction direction of the clip latching pin 50, and is arrange | positioned on both sides on both sides of the center of the small diameter part 42b.

クリップ本体４１のアンカー４４側の端面に封体４８が取り付けられている。この封体４８は貫通孔４２を図の上側から塞いでいる。   A sealing body 48 is attached to the end face of the clip body 41 on the anchor 44 side. The sealing body 48 closes the through hole 42 from the upper side in the figure.

この封体４８は薄板状であり、クリップ本体４１とは別体に成形されたものである。   The sealing body 48 has a thin plate shape and is formed separately from the clip main body 41.

この形態では、アンカー４４及び封体４８にビス穴４４ａ、４８ａが設けられており、該ビス穴４８ａを通してビス穴４４ａにビス４９を打つことにより封体４８がクリップ本体４１に固着されている。ただし、封体４８は接着剤や超音波溶着などによってクリップ本体４１に取り付けられてもよい。封体４８は図示よりも小形であってもよい。封体４８は破れない厚さを有したフィルム等のシートにて構成されてもよい。   In this embodiment, screw holes 44 a and 48 a are provided in the anchor 44 and the sealing body 48, and the sealing body 48 is fixed to the clip main body 41 by hitting the screws 49 into the screw holes 44 a through the screw holes 48 a. However, the sealing body 48 may be attached to the clip main body 41 by an adhesive or ultrasonic welding. The envelope 48 may be smaller than illustrated. The sealing body 48 may be formed of a sheet such as a film having a thickness that does not break.

封体を用いておらず、アンダーカット状の穴を有したクリップを採用してもよい。   You may employ | adopt the clip which has not used the sealing body but has an undercut-shaped hole.

このＥＡ材４０は、図４の通り、大部分がＥＡ材１に埋設されるようにしてＥＡ材１に一体化される。このクリップ４０は、一端側（フランジ４５側）がごく微かにＥＡ材１の外面から突出しているが、全くの面一状に設けられてもよい。   The EA material 40 is integrated with the EA material 1 so that most of the EA material 40 is embedded in the EA material 1 as shown in FIG. Although this clip 40 protrudes from the outer surface of the EA material 1 very slightly at one end side (flange 45 side), it may be provided completely flush.

ＥＡ材１は前記図６のものと同様に例えばウレタン等の合成樹脂の発泡体よりなるものである。この合成樹脂の発泡体成形時に、クリップ係止用突起としてのクリップ係止ピン５０を介して成形用金型にクリップ４０を取り付けておくことにより、クリップ４０付きＥＡ材１が製造される。このクリップ４０の貫通孔４２は、アンカー４４側において封体４８によって封じられているので、ウレタン等が貫通孔４２内に入りこむことはない。   The EA material 1 is made of a synthetic resin foam such as urethane as in the case of FIG. The EA material 1 with the clip 40 is manufactured by attaching the clip 40 to the molding die via the clip locking pin 50 as the clip locking projection at the time of molding the synthetic resin foam. Since the through hole 42 of the clip 40 is sealed by the sealing body 48 on the anchor 44 side, urethane or the like does not enter the through hole 42.

このクリップ係止ピン５０は、台座部５１と、台座部５１から立設された角柱部５２と角柱部５２の先端のテーパ部５３とを有する。台座部５１が金型６０にビスやボルト等によって固着されている。   The clip locking pin 50 includes a pedestal portion 51, a rectangular column portion 52 erected from the pedestal portion 51, and a tapered portion 53 at the tip of the rectangular column portion 52. The pedestal 51 is fixed to the mold 60 with screws or bolts.

角柱部５２が小口径部４２ｂに差し込まれ、この際凸部４７が押し縮められるようにして角柱部５２の外面に当接する。これにより、クリップ４０はクリップ係止ピン５０を介して金型６０にしっかりと保持され、発泡成形途中でもクリップ４０が動くことがない。クリップ本体４１が合成樹脂であるため、凸部４７は略弾性的に変形し、クリップ係止ピン５０に密着する。発泡成形終了後、成形体を金型６０から容易に脱型することによりクリップ４０付きのＥＡ材１が得られる。このクリップ４０は、金型６０にしっかり保持できるが、脱型時には容易に抜ける嵌合力の設定にできる。また、凸部４７の弾性変形での嵌合なので、クリップ４０をピン５０から容易に引き抜くことができる。   The rectangular column portion 52 is inserted into the small diameter portion 42b, and at this time, the convex portion 47 is pressed and contracted so as to contact the outer surface of the rectangular column portion 52. Thereby, the clip 40 is firmly held by the mold 60 via the clip locking pin 50, and the clip 40 does not move even during foam molding. Since the clip body 41 is made of synthetic resin, the convex portion 47 is deformed substantially elastically and is in close contact with the clip locking pin 50. After completion of the foam molding, the molded body is easily removed from the mold 60, whereby the EA material 1 with the clip 40 is obtained. The clip 40 can be firmly held on the mold 60, but can be set to a fitting force that can be easily removed when the mold is removed. Further, since the protrusion 47 is fitted by elastic deformation, the clip 40 can be easily pulled out from the pin 50.

このようにＥＡ材１に設けられたクリップ４０に対し、図４の通りトリム等に突設された係止部３を挿入するようにして該ＥＡ材１がトリム等に取り付けられる。なお、図４の構造は前記図６（ａ）と上下逆に図示されている。図４の係止部３は図６の係止部３と同一構造のものであるが、異なるものであってもよい。   In this way, the EA material 1 is attached to the trim or the like so as to insert the engaging portion 3 protruding from the trim or the like as shown in FIG. 4 into the clip 40 provided on the EA material 1. The structure of FIG. 4 is shown upside down with respect to FIG. The locking portion 3 in FIG. 4 has the same structure as the locking portion 3 in FIG. 6, but may be different.

なお、このクリップ４０のクリップ本体４１は、貫通孔４２を有しているものであり、アンダーカット部を有してはいない。このため、クリップ本体４１は簡易構造の金型を用いた射出成形等により容易に製造することができる。封体４８をクリップ本体４１に取り付けたことを目視確認し易くするために、封体４８とクリップ本体４１とを別色としたり、クリップ本体４１とは別の色のシール、テープ等を封体４８に貼ってもよい。   In addition, the clip main body 41 of this clip 40 has the through-hole 42, and does not have an undercut part. For this reason, the clip main body 41 can be easily manufactured by injection molding using a mold having a simple structure. In order to make it easy to visually confirm that the sealing body 48 is attached to the clip body 41, the sealing body 48 and the clip body 41 are made of different colors, or a seal, tape or the like of a color different from that of the clip body 41 is sealed. 48 may be applied.

図５は別の形態に係るクリップ係止ピン５０Ａの斜視図である。   FIG. 5 is a perspective view of a clip locking pin 50A according to another embodiment.

この係止ピン５０Ａには、その１対の両側面に凸部５４，５４が設けられている。この凸部５４，５４がクリップ４０の小口径部４２ｂの内面に密着することにより、クリップ４０が金型６０にしっかりと保持される。なお、この場合、クリップ４０の凸部４７，４７は設けられていないことが望ましい。   The locking pin 50A is provided with convex portions 54, 54 on a pair of both side surfaces thereof. The protrusions 54, 54 are in close contact with the inner surface of the small-diameter portion 42 b of the clip 40, so that the clip 40 is firmly held by the mold 60. In this case, it is desirable that the convex portions 47 of the clip 40 are not provided.

上記形態はいずれも本発明の一例であり、本発明は図示以外の形態をもとりうる。例えば、凸部の数は図示よりも多くてもよい。凸部の形状は図示以外のものでもよい。クリップ係止ピン５０，５０Ａは金属製でも合成樹脂製でもよい。   Each of the above forms is an example of the present invention, and the present invention may take forms other than those illustrated. For example, the number of convex portions may be larger than illustrated. The shape of the convex portion may be other than that illustrated. The clip locking pins 50 and 50A may be made of metal or synthetic resin.

上記のクリップはＥＡ材用のものであるが、本発明はその他のクリップの場合にも適用できる。   Although the above-mentioned clip is for EA material, the present invention can be applied to other clips.

本発明の一形態に係るクリップと金型との係合関係を示す断面図である。 It is sectional drawing which shows the engagement relationship of the clip concerning one form of this invention, and a metal mold | die . 図１のクリップの分解斜視図である。It is a disassembled perspective view of the clip of FIG. 図１のクリップとクリップ係止ピンとの係合関係を示す斜視図である。It is a perspective view which shows the engagement relationship of the clip of FIG. 1, and a clip locking pin. ＥＡ材に設けられた図１のクリップと係止部との係合関係を示す断面図である。It is sectional drawing which shows the engagement relationship of the clip of FIG. 1 provided in EA material, and a latching | locking part. 別の形態に係るクリップ係止ピンの斜視図である。It is a perspective view of the clip locking pin which concerns on another form. 従来のクリップの説明図である。It is explanatory drawing of the conventional clip. 図６のクリップを用いたＥＡ材取付構造を示す断面図である。It is sectional drawing which shows the EA material attachment structure using the clip of FIG. 別の従来のクリップの説明図である。It is explanatory drawing of another conventional clip.

符号の説明Explanation of symbols

４０ クリップ
４１ クリップ本体
４２ 貫通孔
４３ 段部
４４ アンカー
４５ フランジ部
４７ 凸部
５０，５０Ａ クリップ係止ピン
５４ 凸部 40 clip 41 clip body 42 through hole 43 step portion 44 anchor 45 flange portion 47 convex portion 50, 50A clip locking pin 54 convex portion

Claims (2)

衝撃エネルギー吸収材を成形するための金型の内面に、部材に衝撃エネルギー吸収材を取り付けるための衝撃エネルギー吸収材取付用クリップを保持した構造であって、
該金型の内面からクリップ係止用突起が突設され、
衝撃エネルギー吸収材取付用クリップには該クリップ係止用突起が差し込まれる差込穴が設けられており、
該差込穴にクリップ係止用突起が差し込まれることにより該衝撃エネルギー吸収材取付用クリップが金型の内面に保持されている衝撃エネルギー吸収材成形用金型の衝撃エネルギー吸収材取付用クリップ保持構造において、
該差込穴の内面に、該差込穴の内方へ張り出す凸部が設けられており、
該凸部は、該差込穴に該クリップ係止用突起が差し込まれたときに、該クリップ係止用突起の外面に当接し、該差込穴の内面と該クリップ係止用突起の外面との間で押し縮められるものであり、
該凸部は、該クリップ係止用突起の該差込穴への挿抜方向に延在したリブよりなることを特徴とする衝撃エネルギー吸収材成形用金型の衝撃エネルギー吸収材取付用クリップ保持構造。 A structure in which an impact energy absorbing material mounting clip for attaching the impact energy absorbing material to the member is held on the inner surface of a mold for molding the impact energy absorbing material,
A clip locking projection protrudes from the inner surface of the mold,
The impact energy absorbing material mounting clip is provided with an insertion hole into which the clip locking projection is inserted,
The clip for holding the impact energy absorbing material is held by the inner surface of the mold by inserting the protrusion for clip engagement into the insertion hole. In structure
The inner surface of the difference plug-in hole, and the convex portion is provided projecting inward of the difference plug-in hole,
The protrusion comes into contact with the outer surface of the clip locking projection when the clip locking projection is inserted into the insertion hole, and the inner surface of the insertion hole and the outer surface of the clip locking projection. And is shrunk between
The projecting portion comprises a rib extending in the insertion / extraction direction of the clip locking projection into the insertion hole, and the impact energy absorbing material mounting clip holding structure for impact energy absorbing material molding . 部材に衝撃エネルギー吸収材を取り付けるためのクリップであって、
該衝撃エネルギー吸収材を成形するための金型の内面に設けられたクリップ係止用突起が差し込まれる差込穴を有した衝撃エネルギー吸収材取付用クリップにおいて、
該差込穴の内面に、該差込穴の内方へ張り出す凸部が設けられており、
該凸部は、該差込穴に該クリップ係止用突起が差し込まれたときに、該クリップ係止用突起の外面に当接し、該差込穴の内面と該クリップ係止用突起の外面との間で押し縮められるものであり、
該凸部は、該クリップ係止用突起の該差込穴への挿抜方向に延在したリブよりなることを特徴とする衝撃エネルギー吸収材取付用クリップ。 A clip for attaching a shock energy absorber to a member,
In the impact energy absorbing material mounting clip having an insertion hole into which a clip locking projection provided on the inner surface of a mold for molding the impact energy absorbing material is inserted,
A convex portion is provided on the inner surface of the insertion hole so as to protrude inward of the insertion hole .
The protrusion comes into contact with the outer surface of the clip locking projection when the clip locking projection is inserted into the insertion hole, and the inner surface of the insertion hole and the outer surface of the clip locking projection. And is shrunk between
The impact energy absorbing material mounting clip, wherein the convex portion is formed of a rib extending in a direction in which the clip locking projection is inserted into or removed from the insertion hole.
JP2003284020A 2003-07-31 2003-07-31 Clip holding structure for mounting impact energy absorber and mold for mounting shock energy absorber and clip for mounting impact energy absorber Expired - Fee Related JP4675035B2 (en)

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JP4581350B2 (en) * 2003-07-31 2010-11-17 株式会社ブリヂストン Impact energy absorber and its mounting structure
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JP2010144908A (en) * 2008-12-22 2010-07-01 Bridgestone Corp Clip, impact absorber, impact absorber molding mold, and impact absorber mounting structure
JP5605069B2 (en) * 2010-08-09 2014-10-15 株式会社ブリヂストン Foam molded member, clip for mounting the foam, method for manufacturing foam molded member, and mounting structure for foam molded member
JP5644245B2 (en) * 2010-08-09 2014-12-24 株式会社ブリヂストン Foam molded member, clip for mounting the foam, method for manufacturing foam molded member, and mounting structure for foam molded member
JP5644246B2 (en) * 2010-08-09 2014-12-24 株式会社ブリヂストン Foam molded member, clip for mounting the foam, method for manufacturing foam molded member, and mounting structure for foam molded member
JP5605068B2 (en) * 2010-08-09 2014-10-15 株式会社ブリヂストン Foam molded member, clip for mounting the foam, method for manufacturing foam molded member, and mounting structure for foam molded member
JP7081801B2 (en) * 2018-06-01 2022-06-07 積水ホームテクノ株式会社 How to make a headrest
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