JP4088866B2

JP4088866B2 - Mold component mounting structure to mold

Info

Publication number: JP4088866B2
Application number: JP2002127290A
Authority: JP
Inventors: 裕隆杉山
Original assignee: Inoac Corp
Current assignee: Inoac Corp
Priority date: 2002-04-26
Filing date: 2002-04-26
Publication date: 2008-05-21
Anticipated expiration: 2022-04-26
Also published as: JP2003320536A

Description

【０００１】
【発明の属する技術分野】
この発明は、成形型への型部品装着構造に関し、更に詳細には、成形型の成形面に所要形状の型部品を装着するに際し、該型部品の裏面に設けた複数の磁石または磁性体と該成形面の対応位置に設けた複数の磁性体または磁石との間に作用する磁気吸着力を利用するようにした成形型への型部品装着構造に関するものである。
【０００２】
【従来の技術】
乗用車等の車内に設置される車両用のシートや、ソファまたは事務用椅子等では、適度の弾力性を有するウレタンフォーム等を材質とする樹脂発泡成形体と、この樹脂発泡成形体の外側に被着される表皮材とから構成されている。例えば、図９に例示した車両用のシートにおけるシートクッション１０では、乗員の下半身(臀部)を当て受け得る形状に発泡成形された樹脂発泡成形体としての成形パッド１２と、ファブリックまたは合成皮革等からなる複数の裁断片１６を縫製してなる表皮材１４とから構成され、この表皮材１４を前記成形パッド１２の外側に被着して実施に供される。
【０００３】
ここで前記シートクッション１０では、乗員が着座するたびに前記成形パッド１２が弾力的に圧縮変形するため、この成形パッド１２に被着された前記表皮材１４に弛みやずれが生じ易くなっている。そこで、前記表皮材１４のずれを防止する対策として、前記成形パッド１２の外面所要位置に公知のファスナー部材２０を適宜数埋設(装着)しておき、このファスナー部材２０を前記表皮材１４の裏面の所要位置(例えば、裁断片１６同士の縫目裏側等)に係着させることで、当該表皮材１４を該成形パッド１２に対して適切に保持する方法が採用されている。このファスナー部材２０は、例えば図１０に例示する如く、インジェクション成形技術に基いて一体成形されたものであって、長手方向に連設した多数のセグメント２２ａから構成されて適度の撓曲的な変形が可能とされる本体２２と、各々のセグメント２２ａにおける一方外面に突設されて前記成形パッド１２に埋設状態で係止する係止突片２４と、各々のセグメント２２ａにおける他方外面に突設されて前記表皮材１４に刺衝した状態で掛止する掛止突片２６とから構成されている。
【０００４】
このようなファスナー部材２０は、図１２(ａ)および(ｂ)に例示した発泡成形型３０で前記成形パッド１２を発泡成形するに先立ち、該発泡成形型３０におけるキャビティ３２に面した成形面３４の所要位置に対して、図１１に略示した型部品４０を利用して予めセット保持され、このもとで発泡成形を行なうことで成形された成形パッド１２の外面所要位置に装着される。前記型部品４０は、例えばアルミニウム等の軽量金属から形成されたレール状部材で、長尺の前記ファスナー部材２０用の収容部４２を凹設した横断面形状が略コ字形を呈しており、位置決め治具４４を使用することで該各係止突片２４を外方へ突出させた状態でファスナー部材２０を安定的に収容保持し得るようになっている。
【０００５】
ここで、前記発泡成形型３０におけるキャビティ３２に面した成形面３４に対して前記ファスナー部材２０を収容保持した前記型部品４０を装着するに際しては、(１)型部品４０の裏面４０ａに複数の磁石を設けると共に前記成形面３４の対応位置に複数の磁性体を設け、これら磁石と磁性体との間に作用する磁気吸着力を利用する装着構造、(２)型部品４０の裏面４０ａに複数の磁性体を設けると共に前記成形面３４の対応位置に複数の磁石を設け、これら磁石と磁性体との間に作用する磁気吸着力を利用する装着構造、等が好適に実施されている。例えば、図１３および図１４は前記(１)の態様を具体的に例示したもので、型部品４０の裏面４０ａに磁石５０を埋設し、また成形面３４の対応位置に鉄等の強磁性体を含有した金属素材から形成された磁性体５６を埋設しておくことで、型部品４０を装着予定位置に接近させるだけで該型部品４０が成形面３４の装着部位に吸着されるようになる。
【０００６】
従って、この型部品４０における前記収容部４２に前記ファスナー部材２０をセット保持すれば、該ファスナー部材２０は各係止突片２４を突出させた状態で成形面３４に位置決めされ、このもとで成形パッド１２の発泡成形を行なえば成形後の該成形パッド１２の内部に各々の係止突片２４が埋設状態で係止されるから、当該ファスナー部材２０が成形パッド１２の外面所要位置に装着されるようになる(図１３(ａ))。そして、成形完了後に成形パッド１２を脱型するに際しては、前記磁石５０および磁性体５６の磁気吸着力により型部品４０は成形面３４に吸着保持されるので、ファスナー部材２０は型部品４０の収容部４２から抜脱されるようになる(図１３(ｂ))。
【０００７】
【発明が解決しようとする課題】
ところで、前述した従来の成形型への型部品装着構造では、成形面３４に対する型部品４０の装着力(吸着力)を高めることに主眼が置かれていたため、図１４に例示する如く、型部品４０の裏面４０ａに埋設された磁石５０および成形面３４に埋設された磁性体５６は、何れも大型のサイズのものが採用されていた。殊に成形面３４に埋設された磁性体５６は、型部品４０の幅寸法より幅広く大きいサイズのものが実施されていた。このため、型部品４０の位置決めが不適切な状態あるいは姿勢が不適切な状態でも、成形面３４に対する該型部品４０の装着が許容されてしまうため、当該型部品４０の位置決め精度が低い欠点を内在していた。従って、成形パッド１２に対してファスナー部材２０が適正な位置に装着されない不都合が生じ、これに伴って成形パッド１２に対して表皮材１４を適切に保持させ得ない問題が生ずる畏れがあった。
【０００８】
また図１５に示すように、前記磁性体５６を成形面３４より深い位置に埋設した状態とし、型部品４０の装着部位を該型部品４０の形状に合致する凹部３８として形成すれば、該型部品４０をこの凹部３８に嵌入させることで適切な位置決めが図られ、前述した不都合は解消される。しかしながら図１５の如く、型部品４０を成形面３４の垂直部位に装着する態様の場合は、該型部品４０の装着方向(矢印Ａ)と成形パッド１２の脱型方向(矢印Ｂ)とが異なっているため、当該成形パッド１２の脱型に際しては、型部品４０が成形面３４(凹部３８)から分離する必要がある。ところが成形パッド１２の脱型時には、型部品４０が凹部３８の上端縁に引掛かって該凹部３８からの分離が規制されるので、該成形パッド１２の脱型が不可能となってしまう問題が発生していた。
【０００９】
【発明の目的】
本発明は、前述した課題を好適に解決するべく提案されたもので、成形型の成形面に所要形状の型部品を装着するに際し、その位置決めを正確かつ簡易に行ない得るようにした成形型への型部品装着構造を提供することを目的とする。
【００１０】
【課題を解決するための手段】
前記課題を解決して、所期の目的を達成するため本発明は、成形型の成形面に所要形状の型部品を装着するに際し、該型部品の裏面に設けた複数の磁石と該成形面の対応位置に設けた複数の磁性体との間に作用する磁気吸着力を利用するようにした成形型への型部品装着構造において、
前記型部品に設けられる磁石を、該型部品の第１方向に沿って延在する所要長の第１磁石と、該第１方向と交差する第２方向に沿って延在する所要長の第２磁石とから構成すると共に、
前記成形面に設けられる磁性体を、前記第１磁石における第１方向と対応する方向に延在する所要長の第１磁性体と、前記第２磁石における第２方向と対応する方向に延在する所要長の第２磁性体とから構成し、
前記型部品を前記成形面に装着するに際し、前記第１磁石および対応の第１磁性体を吸着させて該型部品における第２方向への位置決めを行なうと共に、前記第２磁石および対応の第２磁性体を吸着させて該型部品における第１方向への位置決めを行なうようにしたことを特徴とする。
【００１１】
同じく前記課題を解決して、所期の目的を達成するため別の発明は、成形型の成形面に所要形状の型部品を装着するに際し、該型部品の裏面に設けた複数の磁性体と該成形面の対応位置に設けた複数の磁石との間に作用する磁気吸着力を利用するようにした成形型への型部品装着構造において、
前記型部品に設けられる磁性体を、該型部品の第１方向に沿って延在する所要長の第１磁性体と、該第１方向と交差する第２方向に沿って延在する所要長の第２磁性体とから構成すると共に、
前記成形面に設けられる磁石を、前記第１磁性体における第１方向と対応する方向に延在する所要長の第１磁石と、前記第２磁性体における第２方向と対応する方向に延在する所要長の第２磁石とから構成し、
前記型部品を前記成形面に装着するに際し、前記第１磁性体および対応の第１磁石を吸着させて該型部品における第２方向への位置決めを行なうと共に、前記第２磁性体および対応の第２磁石を吸着させて該型部品における第１方向への位置決めを行なうようにしたことを特徴とする。
【００１２】
【発明の実施の形態】
次に、本発明に係る成形型への型部品装着構造につき、好適な実施例を挙げ、添付図面を参照しながら以下説明する。なお各実施例では、前記ファスナー部材２０を収容保持可能な前述の型部品４０を、前記成形パッド１２を発泡成形するための前述の発泡成形型３０における成形面３４の所要位置に装着する場合を例示して説明する。そこで、図９〜図１５を引用して従来技術を説明するに際して既出の部材、部位と同一の部材、部位については、同一の符号で指示する。
【００１３】
【第１実施例】
図１は、第１実施例に係る成形型への型部品装着構造を採用した型部品４０および発泡成形型３０を概略図示した説明斜視図であり、また図２は、型部品４０および発泡成形型３０の一部を平面状態で示した説明図である。第１実施例の型部品装着構造は、基本的には図１４等に例示した従来実施の型部品装着構造と同様に、前記発泡成形型３０に形成したキャビティ３２に面する成形面３４に前記型部品４０を装着するに際し、該型部品４０の裏面に設けた複数の磁石５０と該成形面３４の対応位置に設けた複数の磁性体５６との間に作用する磁気吸着力を利用するようになっている。
【００１４】
そして、前記磁石５０および磁性体５６による磁気吸着力を利用する第１実施例の型部品装着構造では、前記型部品４０の裏面に設けられる複数の磁石５０を、該型部品４０の第１方向に沿って延在する所要長の第１磁石５２と、該第１方向と交差する第２方向に沿って延在する所要長の第２磁石５４とから構成してある。また、前記成形面３４の対応位置に設けられる複数の磁性体５６を、前記第１磁石５２における第１方向と対応する方向に延在する所要長の第１磁性体５８と、前記第２磁石５４における第２方向と対応する方向に延在する所要長の第２磁性体６０とから構成してある。
【００１５】
そして、前記型部品４０が細長形状をなしていることから、図３に示す如く、該型部品４０の裏面４０ａにおける両端近傍部位に第２磁石５４を１個ずつ配設すると共に、これら第２磁石５４の間に合計５個の第１磁石５２を等間隔に配設してある(図３(ｂ))。これに伴って前記成形面３４では、装着部位の両端部位に第２磁性体６０を１個ずつ配設すると共に、これら第２磁性体６０の間に合計５個の第１磁性体５８を等間隔に配設してある(図２)。但し、型部品４０に対する第１磁石５２および第２磁石５４の配設態様(配設位置、配設個数、配列形態等)や、これに対応した第１磁性体５８および第２磁性体６０の配設態様(配設位置、配設個数、配列形態等)は、実施例に例示のものに限定されるものではなく、前記型部品４０の形状、サイズや成形面３４の形状等により決定されるものである。
【００１６】
ここで、型部品４０が細長形状をなす場合には、例えば前述した第１方向を当該型部品４０の長手方向とすると共に、前述した第２方向を当該型部品４０の短手方向とする。これにより、前記型部品４０を前記成形面３４に装着するに際しては、前記第１磁石５２および対応の第１磁性体５８を吸着させて該型部品４０における短手方向(第２方向)への位置決めを行なうと共に、前記第２磁石５４および対応の第２磁性体６０を吸着させて該型部品４０における長手方向(第１方向)への位置決めを行なうようになっている。
【００１７】
前記第１磁石５２および第２磁石５４は公知の永久磁石であって、何れも細長棒状の同一形状・同一サイズに形成されたものが使用される。そして、前記型部品４０の裏面４０ａに対しては、該型部品４０に凹設した凹部４６に対して所要の向き(第１磁石５２は型部品４０の長手方向に沿った向き、第２磁石５４は型部品４０の短手方向に沿った向き)で該裏面４０ａと同一レベルとなるよう収容され、半円状に形成されたスペーサ４８,４８で両側から固定保持されている。なお、第１磁石５２および第２磁石５４は、広く実施に供されている既存のものを単に所要の形状・サイズに形成したものであるから、その特性、性能等に関する詳細説明は省略する。
【００１８】
また前記第１磁性体５８および第２磁性体６０は、対応の前記第１磁石５２および第２磁石５４に対して好適に磁気吸着されるもので、例えば鉄、ニッケルまたはコバルト等の強磁性体を所要量含有した適宜の金属素材を細長棒状に形成したものが使用される。そして、発泡成形型３０の成形面３４に対しては、この成形面３４に凹設した凹部３６に所要の向き(第１磁性体５８は第１磁石５２と対応する向き、第２磁性体６０は第２磁石５４と対応する向き)で該成形面３４と同一レベルとなるように埋設して固定されている。これにより前記成形面３４は、各第１磁性体５８および各第２磁性体６０を配設しても、凹凸状とならずに平坦状を呈している。
【００１９】
そして、前記第１磁性体５８の長さ寸法Ｌｓ１は、対応の第１磁石５２の長さ寸法Ｌｍ１よりも大きく設定されており、図１に示すように、概ね第１磁性体５８の方が３倍程度に設定されている。これにより、型部品４０を成形面３４に装着するに際し、該型部品４０が装着部位に対して長手方向に多少ずれていたとしても、各々の第１磁石５２と対応の第１磁性体５８との吸着が可能となり、当該型部品４０の短手方向の位置決めを図り得るようになっている。
【００２０】
一方、前記第２磁性体６０の長さ寸法Ｌｓ２は、対応の第２磁石５４の長さ寸法Ｌｍ２よりも長く設定されており、図１に示すように、概ね第２磁性体６０の方が２倍程度に設定されている。これにより、型部品４０を成形面３４に装着するに際し、該型部品４０が装着部位に対して短手方向に多少ずれていたとしても、各々の第２磁石５４と対応の第２磁性体６０との吸着が可能となり、当該型部品４０の長手方向の位置決めを図り得るようになっている。
【００２１】
【第１実施例の作用】
前述のように構成された第１実施例に係る成形型への型部品装着構造に基いて発泡成形型３０の成形面３４に前記型部品４０を装着する場合は、当該型部品４０が細長形状を呈していることに勘案すると、先ず前記各々の第１磁石５２および対応の第１磁性体５８を吸着させて短手方向の位置決めを行ない、次いで前記各々の第２磁石５４および対応の第２磁性体６０を吸着させて長手方向の位置決めを行なうことが望ましい。これを、図４および図５を引用して具体的に説明する。
【００２２】
先ず、前記発泡成形型３０の成形面３４における型部品の装着部位に、前記型部品４０を適当に接近させる(図４(ａ))。このとき、装着部位に対して型部品４０を正確に位置決めしようとする必要はなく、長手方向へ多少ずれていてもよい。そして、成形面３４の装着部位に接近させた状態で型部品４０を左右へ適度に傾斜させ、各々の第１磁石５２と対応の第１磁性体５８とが磁気吸着する位置を探す(図４(ｂ))。そして、型部品４０の姿勢変位に伴って前記各々の第１磁石５２が対応の第１磁性体５８に接近した際には、両者５２,５８の間に発生する磁気吸着力により相互が密着するようになるから、当該型部品４０の短手方向の位置決めが図られる(図４(ｃ))。
【００２３】
前述した位置決め作業により型部品４０の短手方向の位置決めが完了したら、各々の第１磁石５２と対応の第１磁性体５８とが吸着された状態で該型部品４０を長手方向へスライドさせ、各々の第２磁石５４と対応の第２磁性体６０とが磁気吸着する位置を探す(図５(ａ))。そして、型部品４０の位置変位に伴って前記各々の第２磁石５４が対応の第２磁性体６０に接近した際には、両者５４,６０の間に発生する磁気吸着力により相互が密着するようになるから、当該型部品４０の長手方向の位置決めが図られる(図５(ｂ))。
【００２４】
このように第１実施例の型部品装着構造では、前記型部品４０を前記成形面３４に装着するに際し、前記各々の第１磁石５２および対応の第１磁性体５８を吸着させることで該型部品４０における短手方向(第２方向)への位置決めを正確に行ない得ると共に、前記各々の第２磁石５４および対応の第２磁性体６０を吸着させることで該型部品４０における長手方向(第１方向)への位置決めを正確に行ない得る。しかも、第１磁性体５８および第２磁性体６０の長さ寸法Ｌｓ１,Ｌｓ２を、対応の第１磁石５２および第２磁石５４の長さ寸法Ｌｍ１,Ｌｍ２より大きく設定してあるので、型部品４０の第１方向への位置決め作業および第２方向への位置決め作業を簡易に行ない得る。
【００２５】
そして、型部品４０が成形面３４に対して適切に位置決めされた状態では、図６(ａ)および図６(ｂ)に示す如く、各々の第１磁石５２および対応の第１磁性体５８の間に作用する磁気吸着力と、各々の第２磁石５４および対応の第２磁性体６０の間に作用する磁気吸着力とにより、該型部品４０は成形面３４に対して隙間なしに好適に装着される。
【００２６】
また第１実施例の型部品装着構造では、成形面３４に対する型部品４０の位置決め態様が図１５に示したような凹凸の嵌合によるものではないため、該型部品４０に対して所要の外力が加わった際には、第１磁石５２と第１磁性体５８との間に作用する磁気吸着力および第２磁石５４と第２磁性体６０との間に作用する磁気吸着力に抗して、当該型部品４０が成形面３４から分離することが許容される。従って、例えば図７(ａ)に示す如く、型部品４０を成形面３４の垂直部位に装着する態様の場合は、該型部品４０の装着方向(矢印Ａ)と成形パッド１２の脱型方向(矢印Ｂ)が異なるとしても、当該成形パッド１２の脱型に際して型部品４０が成形面３４から容易に分離するようになるから(図７(ｂ))、成形パッド１２の脱型に何等支障を来すことはない。
【００２７】
【第２実施例】
図８は、第２実施例に係る成形型の型部品装着構造を採用した型部品および発泡成形型を概略図示した説明斜視図である。この第２実施例の型部品装着構造は、発泡成形型３０に形成したキャビティ３２に面する成形面３４に型部品４０を装着するに際し、該型部品４０の裏面４０ａに複数の磁性体５６を設けると共に、該成形面３４の対応位置に複数の磁石５０を設け、これら磁性体５６と磁石５０との間に作用する磁気吸着力を利用して型部品４０を成形面３４に装着する型部品装着構造に応用したものである。
【００２８】
具体的には、前記型部品４０の裏面４０ａに設けられる複数の磁性体５６を、該型部品４０の長手方向(第１方向)に沿って延在する所要長の第１磁性体５８と、該長手方向と交差する短手方向(第２方向)に沿って延在する所要長の第２磁性体６０とから構成すると共に、前記成形面３４の対応位置に設けられる複数の磁石５０を、前記第１磁性体５８における長手方向(第１方向)と対応する方向に延在する所要長の第１磁石５２と、前記第２磁性体６０における短手方向(第２方向)と対応する方向に延在する所要長の第２磁石５４とから構成する。これにより、前記型部品４０を前記成形面３４に装着するに際しては、前記第１磁性体５８および対応の第１磁石５２を吸着させて該型部品４０における短手方向への位置決めを正確に行ない得ると共に、前記第２磁性体６０および対応の第２磁石５４を吸着させて該型部品４０における長手方向への位置決めを正確に行ない得る。
【００２９】
なお、この場合では、前記第１磁石５２の長さ寸法Ｌｍ１を対応の第１磁性体５８の長さ寸法Ｌｓ１よりも大きく設定しておくことで、型部品４０を成形面３４に装着するに際して該型部品４０の短手方向の位置決めが簡易となる。また、前記第２磁石５４の長さ寸法Ｌｍ２を対応の第２磁性体６０の長さ寸法Ｌｓ２よりも大きく設定しておくことで、型部品４０を成形面３４に装着するに際して該型部品４０の長手方向の位置決めが簡易となる。但し、前記第１磁石５２の長さ寸法Ｌｍ１より対応の第１磁性体５８の長さ寸法Ｌｓ１を大きく設定するようにしても、型部品４０を成形面３４に装着するに際して該型部品４０の短手方向の位置決めが簡易となる。
【００３０】
また第２実施例の型部品装着構造も、成形面３４に対する型部品４０の位置決め態様が図１５に示したような凹凸の嵌合によるものではないため、該型部品４０に対して所要の外力が加わった際には、第１磁石５２と第１磁性体５８との間に作用する磁気吸着力および第２磁石５４と第２磁性体６０との間に作用する磁気吸着力に抗して、当該型部品４０が成形面３４から分離することが許容される。従って、第１実施例の型部品装着構造と同様に、前記成形パッド１２の脱型に際して型部品４０が成形面３４から容易に分離するようになるから、該成形パッド１２の脱型に何等支障を来すことはない。
【００３１】
なお本願が対象とする成形型への型部品装着構造は、前記実施例に例示した成形パッド１２を成形するための発泡成形型３０における成形面３４に対し、該成形パッド１２の外面所要位置に装着されるファスナー部材２０を保持する型部品４０を装着することに限定されるものではない。すなわち前記成形型は、発泡成形型のほかにインジェクション成形型、ブロー成形型、真空成形型等の種々タイプが対象とされ、また前記型部品は、これらの成形型の成形面等に装着される種々の形状・サイズのもの全てが対象とされる。
【００３２】
【発明の効果】
以上説明した如く、本発明に係る成形型への型部品装着構造によれば、型部品を成形型の成形面に装着するに際し、型部品に設けた第１磁石および成形面に設けた対応の第１磁性体を吸着させることで該型部品における第２方向への位置決めを正確に行ない得ると共に、型部品に設けた第２磁石および成形面に設けた第２磁性体を吸着させることで該型部品における第１方向への位置決めを正確に行ない得る利点がある。しかも第１磁性体および第２磁性体の長さ寸法を、対応の第１磁石および第２磁石の長さ寸法より大きく設定してあるので、型部品の第１方向への位置決め作業および第２方向への位置決め作業を簡易に行ない得る利点もある。
【００３３】
また、別の発明に係る成形型への型部品装着構造によれば、型部品を成形型の成形面に装着するに際し、型部品に設けた第１磁性体および成形面に設けた対応の第１磁石を吸着させることで該型部品における第２方向への位置決めを正確に行ない得ると共に、型部品に設けた第２磁性体および成形面に設けた第２磁石を吸着させることで該型部品における第１方向への位置決めを正確に行ない得る利点がある。しかも第１磁石および第２磁石の長さ寸法を、対応の第１磁性体および第２磁性体の長さ寸法より大きく設定してあるので、型部品の第１方向への位置決め作業および第２方向への位置決め作業を簡易に行ない得る利点もある。
【００３４】
そして、夫々の発明に係る成形型の型部品装着構造によれば、成形型で成形された成形パッドを脱型するに際して型部品が成形面から分離するようになるから、該成形パッドの脱型に何等支障を来すことがない。
【図面の簡単な説明】
【図１】第１実施例に係る成形型への型部品装着構造を採用した型部品および発泡成形型を概略図示した説明斜視図である。
【図２】型部品および発泡成形型の一部を平面状態で示した説明図である。
【図３】 (ａ)は型部品の表側を示した平面図であり、(ｂ)は該型部品の裏側を示した背面図である。
【図４】発泡成形型の成形面に型部品を装着する過程を経時的に示した説明図であって、(ａ)は、成形面の装着部位に型部品を接近させる状態を示し、(ｂ)は、型部品を左右に適宜傾斜させることで第１磁石と第１磁性体とが磁気吸着する位置を探している状態を示し、(ｃ)は、第１磁石と第１磁性体とが磁気吸着することで型部品の短手方向の位置決めがなされた状態を示している。
【図５】発泡成形型の成形面に型部品を装着する過程を経時的に示した説明図であって、(ａ)は、短手方向の位置決めがなされた型部品を左右にスライドさせることで第２磁石と第２磁性体とが磁気吸着する位置を探している状態を示し、(ｂ)は、第２磁石と第２磁性体とが磁気吸着することで型部品の長手方向の位置決めがなされ、成形面に対する型部品の装着が完了した状態を示している。
【図６】 (ａ)は図５(ｂ)のVIa−VIa線断面図であり、(ｂ)は図５(ｂ)のVIb−VIb線断面図である。
【図７】成形面の垂直部位に型部品を装着する態様を例示した説明断面図であって、(ａ)は、型部品を成形面に装着したもとで成形パッドをを成形している状態を示し、(ｂ)は、成形された成形パッドを脱型するに際し、型部品が成形面から分離することが許容されることを示している。
【図８】第２実施例に係る成形型への型部品装着構造を採用した型部品および発泡成形型を概略図示した説明斜視図である。
【図９】車両用のシートにおけるシートクッションを構成する成形パッドおよび表皮材を、成形パッドに表皮材を被着する状態で示した説明斜視図である。
【図１０】図７に示した成形パッドの外面所要位置に装着されるファスナー部材を、表面側および裏面側から見た状態を同時に示した斜視図である。
【図１１】発泡成形型の成形面に装着される型部品に、ファスナー部材を装着する状態を一部省略して示した斜視図である。
【図１２】(ａ)は、図７に示した成形パッドを成形するための発泡成形型を、ファスナー部材を保持した型部品を装着した状態で示した一部省略平面図であり、(ｂ)は、(ａ)のＸ−Ｘ線断面図である。
【図１３】(ａ)は、ファスナー部材を保持した型部品を装着したもとで成形パッドを成形している状態を示した部分断面図であり、(ｂ)は、成形された成形パッドを脱型する状態を示した部分断面図である。
【図１４】従来の成形型への型部品装着構造を採用した型部品および発泡成形型を概略図示した説明斜視図である。
【図１５】成形面の垂直部位に型部品を装着する態様を例示した説明断面図であって、成形された成形パッドを脱型するに際しては、型部品が凹部に引掛かるために該成形パッドの脱型が規制される不都合が起こり得ることを示している。
【符号の説明】
１２成形パッド
２０ファスナー部材
３４成形面
４０型部品
５０磁石
５２第１磁石
５４第２磁石
５６磁性体
５８第１磁性体
６０第２磁性体
Ｌｍ１第１磁石５２の長さ寸法
Ｌｍ２第２磁石５４の長さ寸法
Ｌｓ１第１磁性体５８の長さ寸法
Ｌｓ２第２磁性体６０の長さ寸法[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure for mounting a mold part to a mold, and more specifically, when a mold part having a required shape is mounted on a molding surface of a mold, a plurality of magnets or magnetic bodies provided on the back surface of the mold part; The present invention relates to a mold component mounting structure to a mold that uses a magnetic attraction force acting between a plurality of magnetic bodies or magnets provided at corresponding positions on the molding surface.
[0002]
[Prior art]
For vehicle seats, sofas, office chairs, etc. installed in passenger cars, etc., a resin foam molded body made of urethane foam or the like having an appropriate elasticity, and a cover on the outside of the resin foam molded body. It consists of a skin material to be worn. For example, in the seat cushion 10 in the vehicle seat illustrated in FIG. 9, the molding pad 12 is formed as a resin foam molded body that is foam-molded into a shape capable of receiving the lower body (hip) of the occupant, and fabric or synthetic leather. The skin material 14 is formed by sewing a plurality of cut pieces 16, and the skin material 14 is attached to the outside of the molding pad 12 for use.
[0003]
Here, in the seat cushion 10, since the molding pad 12 is elastically compressed and deformed every time an occupant is seated, the skin material 14 attached to the molding pad 12 is likely to be loosened or displaced. . Accordingly, as a measure for preventing the skin material 14 from shifting, a number of known fastener members 20 are appropriately embedded (attached) at required positions on the outer surface of the molding pad 12, and the fastener members 20 are attached to the back surface of the skin material 14. A method of appropriately holding the skin material 14 with respect to the molding pad 12 by engaging with a required position (for example, the back side of the stitches between the cut pieces 16) is employed. For example, as shown in FIG. 10, the fastener member 20 is integrally formed based on an injection molding technique, and is composed of a large number of segments 22a arranged in the longitudinal direction. A main body 22 that is capable of projecting, a locking protrusion 24 that protrudes from one outer surface of each segment 22a and locks in an embedded state in the molding pad 12, and protrudes from the other outer surface of each segment 22a. And a latching protrusion piece 26 that latches in a state where it stabs on the skin material 14.
[0004]
Prior to foam molding of the molding pad 12 with the foam molding die 30 illustrated in FIGS. 12A and 12B, such a fastener member 20 has a molding surface 34 facing the cavity 32 in the foam molding die 30. 11 is set and held in advance using the mold part 40 schematically shown in FIG. 11, and is mounted at a required position on the outer surface of the molding pad 12 formed by performing foam molding. The mold part 40 is a rail-shaped member formed of a light metal such as aluminum, and has a substantially U-shaped cross section with a long accommodating portion 42 for the fastener member 20 formed therein. By using the jig 44, the fastener member 20 can be stably accommodated and held in a state in which the locking protrusions 24 protrude outward.
[0005]
Here, when the mold part 40 containing and holding the fastener member 20 is mounted on the molding surface 34 facing the cavity 32 in the foam molding die 30, (1) a plurality of back surfaces 40 a of the mold part 40 are provided. A mounting structure in which a magnet is provided and a plurality of magnetic bodies are provided at corresponding positions on the molding surface 34 and a magnetic attractive force acting between the magnets and the magnetic body is used. A mounting structure using a magnetic attractive force acting between these magnets and the magnetic body, and the like are suitably implemented. For example, FIGS. 13 and 14 specifically illustrate the aspect (1), in which a magnet 50 is embedded in the back surface 40a of the mold part 40, and a ferromagnetic material such as iron is provided at a corresponding position on the molding surface 34. By embedding the magnetic body 56 formed of a metal material containing the mold component 40, the mold component 40 is attracted to the mounting portion of the molding surface 34 only by bringing the mold component 40 close to the planned mounting position. .
[0006]
Therefore, if the fastener member 20 is set and held in the accommodating portion 42 of the mold part 40, the fastener member 20 is positioned on the molding surface 34 with the respective locking protrusions 24 protruding. If foam molding of the molding pad 12 is performed, the respective locking protrusions 24 are locked in an embedded state in the molded pad 12 after molding, so that the fastener member 20 is mounted at a required position on the outer surface of the molding pad 12. (FIG. 13A). When the molding pad 12 is removed after the molding is completed, the mold part 40 is attracted and held on the molding surface 34 by the magnetic attraction force of the magnet 50 and the magnetic body 56, so that the fastener member 20 accommodates the mold part 40. It will come out of the part 42 (FIG. 13B).
[0007]
[Problems to be solved by the invention]
By the way, in the above-described conventional mold component mounting structure to the mold, the main purpose is to increase the mounting force (adsorption force) of the mold component 40 on the molding surface 34. Therefore, as illustrated in FIG. The magnet 50 embedded in the back surface 40a of 40 and the magnetic body 56 embedded in the molding surface 34 are both of large size. In particular, the magnetic body 56 embedded in the molding surface 34 has been implemented in a size that is wider and larger than the width dimension of the mold part 40. For this reason, even if the positioning of the mold component 40 is inappropriate or the posture is inappropriate, the mold component 40 is allowed to be mounted on the molding surface 34, so that the positioning accuracy of the mold component 40 is low. It was inherent. Therefore, there is a problem that the fastener member 20 is not attached to an appropriate position with respect to the molding pad 12, and there is a possibility that a problem that the skin material 14 cannot be appropriately held with respect to the molding pad 12 may occur.
[0008]
As shown in FIG. 15, if the magnetic body 56 is embedded in a position deeper than the molding surface 34 and the mounting part of the mold part 40 is formed as a recess 38 that matches the shape of the mold part 40, the mold By fitting the component 40 into the recess 38, proper positioning is achieved, and the above-described disadvantages are solved. However, in the case where the mold part 40 is mounted on the vertical part of the molding surface 34 as shown in FIG. 15, the mounting direction (arrow A) of the mold part 40 and the removal direction (arrow B) of the molding pad 12 are different. Therefore, when removing the molding pad 12, the mold part 40 needs to be separated from the molding surface 34 (recess 38). However, when the molding pad 12 is removed from the mold, the mold part 40 is hooked on the upper edge of the recess 38 and the separation from the recess 38 is restricted, so that the mold pad 12 cannot be removed. Was.
[0009]
OBJECT OF THE INVENTION
The present invention has been proposed to suitably solve the above-described problems. To mount a mold part having a required shape on a molding surface of a mold, the mold can be positioned accurately and easily. An object of the present invention is to provide a mold part mounting structure.
[0010]
[Means for Solving the Problems]
In order to solve the above-mentioned problems and achieve the intended purpose, the present invention provides a plurality of magnets provided on the back surface of the mold part and the molding surface when the mold part having the required shape is mounted on the molding surface of the mold. In the mold part mounting structure to the molding die that utilizes the magnetic attractive force acting between the plurality of magnetic bodies provided at the corresponding positions of
The magnet provided in the mold part is a first magnet having a required length extending along a first direction of the mold part, and a first having a required length extending along a second direction intersecting the first direction. Consists of two magnets,
The magnetic body provided on the molding surface extends in a direction corresponding to the second direction in the second magnet and a first magnetic body having a required length extending in a direction corresponding to the first direction in the first magnet. A second magnetic body having a required length to be
When mounting the mold part on the molding surface, the first magnet and the corresponding first magnetic body are attracted to perform positioning in the second direction of the mold part, and the second magnet and the corresponding second The magnetic member is attracted to position the mold part in the first direction.
[0011]
Similarly, in order to solve the above-mentioned problems and achieve the intended purpose, another invention provides a plurality of magnetic bodies provided on the back surface of the mold part when mounting the mold part of a required shape on the molding surface of the mold. In the mold part mounting structure to the molding die that utilizes the magnetic attractive force acting between the plurality of magnets provided at the corresponding positions of the molding surface,
The magnetic body provided in the mold part includes a first magnetic body having a required length extending along a first direction of the mold part, and a required length extending along a second direction intersecting the first direction. And the second magnetic body,
The magnet provided on the molding surface extends in a direction corresponding to the second direction in the second magnetic body, and a first magnet having a required length extending in a direction corresponding to the first direction in the first magnetic body. A second magnet of the required length to
When the mold part is mounted on the molding surface, the first magnetic body and the corresponding first magnet are attracted to position the mold part in the second direction, and the second magnetic body and the corresponding first magnet Two magnets are attracted to perform positioning in the first direction of the mold part.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Next, the mold part mounting structure to the molding die according to the present invention will be described below with reference to the accompanying drawings. In each embodiment, the above-described mold part 40 that can accommodate and hold the fastener member 20 is attached to a required position of the molding surface 34 of the foaming mold 30 for foam-molding the molding pad 12. An example will be described. Therefore, in describing the prior art with reference to FIGS. 9 to 15, the same members and parts as those already described are designated by the same reference numerals.
[0013]
[First embodiment]
FIG. 1 is an explanatory perspective view schematically showing a mold part 40 and a foaming mold 30 adopting a mold part mounting structure to a molding die according to the first embodiment, and FIG. 2 is a perspective view of the mold part 40 and foam molding. It is explanatory drawing which showed a part of type | mold 30 in the planar state. The mold part mounting structure of the first embodiment is basically the same as the conventional mold part mounting structure illustrated in FIG. 14 and the like on the molding surface 34 facing the cavity 32 formed in the foam mold 30. When the mold part 40 is mounted, the magnetic attractive force acting between the plurality of magnets 50 provided on the back surface of the mold part 40 and the plurality of magnetic bodies 56 provided at corresponding positions on the molding surface 34 is used. It has become.
[0014]
In the mold part mounting structure of the first embodiment that uses the magnetic attraction force of the magnet 50 and the magnetic body 56, the plurality of magnets 50 provided on the back surface of the mold part 40 are arranged in the first direction of the mold part 40. A first magnet 52 having a required length extending along the second direction and a second magnet 54 having a required length extending along a second direction intersecting the first direction. Further, a plurality of magnetic bodies 56 provided at corresponding positions on the molding surface 34 are provided with a first magnetic body 58 having a required length extending in a direction corresponding to the first direction of the first magnet 52, and the second magnet. 54, the second magnetic body 60 having a required length extending in a direction corresponding to the second direction.
[0015]
Since the mold part 40 has an elongated shape, as shown in FIG. 3, two second magnets 54 are disposed in the vicinity of both ends of the back surface 40a of the mold part 40 one by one. A total of five first magnets 52 are arranged at equal intervals between the magnets 54 (FIG. 3B). Along with this, on the molding surface 34, one second magnetic body 60 is disposed at each end portion of the mounting portion, and a total of five first magnetic bodies 58 are arranged between the second magnetic bodies 60. They are arranged at intervals (FIG. 2). However, the disposition mode (arrangement position, disposition number, arrangement form, etc.) of the first magnet 52 and the second magnet 54 with respect to the mold part 40, and the corresponding first magnetic body 58 and second magnetic body 60 Arrangement modes (arrangement position, arrangement number, arrangement form, etc.) are not limited to those exemplified in the embodiment, but are determined by the shape and size of the mold part 40, the shape of the molding surface 34, and the like. Is.
[0016]
Here, when the mold part 40 has an elongated shape, for example, the above-described first direction is the longitudinal direction of the mold part 40 and the above-described second direction is the short direction of the mold part 40. Thereby, when the mold part 40 is mounted on the molding surface 34, the first magnet 52 and the corresponding first magnetic body 58 are attracted to the mold part 40 in the short direction (second direction). In addition to positioning, the second magnet 54 and the corresponding second magnetic body 60 are attracted to position the mold part 40 in the longitudinal direction (first direction).
[0017]
The first magnet 52 and the second magnet 54 are known permanent magnets, and both are formed in the same shape and the same size as an elongated rod. Then, with respect to the back surface 40a of the mold part 40, a required direction with respect to the recess 46 provided in the mold part 40 (the first magnet 52 is oriented along the longitudinal direction of the mold part 40, the second magnet 54 is oriented so as to be at the same level as the back surface 40a (in the direction along the short direction of the mold part 40), and is fixedly held from both sides by spacers 48, 48 formed in a semicircular shape. In addition, since the 1st magnet 52 and the 2nd magnet 54 are what was formed in the required shape and size in the existing thing widely used for implementation, detailed description regarding the characteristic, performance, etc. is abbreviate | omitted.
[0018]
Further, the first magnetic body 58 and the second magnetic body 60 are suitably magnetically attracted to the corresponding first magnet 52 and second magnet 54, and for example, a ferromagnetic body such as iron, nickel or cobalt. A suitable metal material containing a required amount is formed into an elongated rod shape. Then, with respect to the molding surface 34 of the foaming mold 30, a required direction (a first magnetic body 58 corresponds to the first magnet 52, a second magnetic body 60, and a concave portion 36 recessed in the molding surface 34. Is embedded and fixed so as to be at the same level as the molding surface 34 in the direction corresponding to the second magnet 54. Thereby, even if each 1st magnetic body 58 and each 2nd magnetic body 60 are arrange | positioned, the said shaping | molding surface 34 is exhibiting flat shape, without becoming uneven | corrugated shape.
[0019]
The length dimension Ls1 of the first magnetic body 58 is set larger than the length dimension Lm1 of the corresponding first magnet 52. As shown in FIG. It is set to about 3 times. Thus, when the mold part 40 is mounted on the molding surface 34, even if the mold part 40 is slightly displaced in the longitudinal direction with respect to the mounting part, each first magnet 52 and the corresponding first magnetic body 58 This makes it possible to position the mold part 40 in the short direction.
[0020]
On the other hand, the length dimension Ls2 of the second magnetic body 60 is set longer than the length dimension Lm2 of the corresponding second magnet 54. As shown in FIG. It is set to about twice. As a result, when the mold part 40 is mounted on the molding surface 34, even if the mold part 40 is slightly displaced in the short direction with respect to the mounting part, the second magnetic body 60 corresponding to each second magnet 54 is obtained. The mold part 40 can be positioned in the longitudinal direction.
[0021]
[Operation of the first embodiment]
In the case where the mold part 40 is mounted on the molding surface 34 of the foam mold 30 based on the mold part mounting structure to the mold according to the first embodiment configured as described above, the mold part 40 has an elongated shape. First, the first magnets 52 and the corresponding first magnetic bodies 58 are first attracted to perform positioning in the short direction, and then the second magnets 54 and the corresponding second magnets 58 are positioned. It is desirable to perform positioning in the longitudinal direction by attracting the magnetic body 60. This will be specifically described with reference to FIG. 4 and FIG.
[0022]
First, the mold part 40 is appropriately brought close to the mounting part of the mold part on the molding surface 34 of the foaming mold 30 (FIG. 4A). At this time, it is not necessary to accurately position the mold part 40 with respect to the mounting site, and the mold part 40 may be slightly shifted in the longitudinal direction. Then, the mold part 40 is appropriately tilted to the left and right in a state of being close to the mounting portion of the molding surface 34, and a position where each first magnet 52 and the corresponding first magnetic body 58 are magnetically attracted is searched (FIG. 4). (b)). When each of the first magnets 52 approaches the corresponding first magnetic body 58 in accordance with the posture displacement of the mold part 40, they are brought into close contact with each other due to the magnetic attraction force generated between the two magnets 52 and 58. Therefore, the mold part 40 is positioned in the short direction (FIG. 4C).
[0023]
When positioning of the mold part 40 in the short direction is completed by the positioning operation described above, the mold part 40 is slid in the longitudinal direction in a state where each first magnet 52 and the corresponding first magnetic body 58 are attracted, A position where each second magnet 54 and the corresponding second magnetic body 60 are magnetically attracted is searched (FIG. 5A). When each of the second magnets 54 approaches the corresponding second magnetic body 60 in accordance with the position displacement of the mold part 40, the two magnets 40 and 60 are brought into close contact with each other due to the magnetic attractive force generated between them. Thus, the mold part 40 is positioned in the longitudinal direction (FIG. 5B).
[0024]
As described above, in the mold part mounting structure of the first embodiment, when the mold part 40 is mounted on the molding surface 34, the molds are adsorbed by the first magnets 52 and the corresponding first magnetic bodies 58. The component 40 can be accurately positioned in the short direction (second direction), and the second magnet 54 and the corresponding second magnetic body 60 are attracted to each other to attract the longitudinal direction (first direction) of the mold component 40. Positioning in one direction) can be performed accurately. Moreover, since the length dimensions Ls1, Ls2 of the first magnetic body 58 and the second magnetic body 60 are set larger than the length dimensions Lm1, Lm2 of the corresponding first magnet 52 and second magnet 54, the mold parts The positioning operation of 40 in the first direction and the positioning operation in the second direction can be easily performed.
[0025]
In a state where the mold part 40 is properly positioned with respect to the molding surface 34, as shown in FIGS. 6A and 6B, each of the first magnets 52 and the corresponding first magnetic body 58 is provided. The mold part 40 is preferably suitable for the molding surface 34 without a gap due to the magnetic attractive force acting between them and the magnetic attractive force acting between each second magnet 54 and the corresponding second magnetic body 60. Installed.
[0026]
Further, in the mold part mounting structure of the first embodiment, since the positioning of the mold part 40 with respect to the molding surface 34 is not due to the uneven fitting as shown in FIG. Against the magnetic attraction force acting between the first magnet 52 and the first magnetic body 58 and the magnetic attraction force acting between the second magnet 54 and the second magnetic body 60. The mold part 40 is allowed to be separated from the molding surface 34. Therefore, for example, as shown in FIG. 7A, in the case of mounting the mold part 40 on the vertical part of the molding surface 34, the mounting direction of the mold part 40 (arrow A) and the mold pad 12 removal direction ( Even if the arrow B) is different, the mold part 40 can be easily separated from the molding surface 34 when the molding pad 12 is removed (FIG. 7B). Never come.
[0027]
[Second embodiment]
FIG. 8 is an explanatory perspective view schematically showing a mold part and a foam mold using the mold part mounting structure of the mold according to the second embodiment. In the mold part mounting structure of the second embodiment, when the mold part 40 is mounted on the molding surface 34 facing the cavity 32 formed in the foam mold 30, a plurality of magnetic bodies 56 are provided on the back surface 40a of the mold part 40. And a plurality of magnets 50 provided at corresponding positions on the molding surface 34, and a mold component for mounting the mold component 40 on the molding surface 34 by using a magnetic attractive force acting between the magnetic body 56 and the magnet 50. This is applied to the mounting structure.
[0028]
Specifically, a plurality of magnetic bodies 56 provided on the back surface 40a of the mold part 40, a first magnetic body 58 having a required length extending along the longitudinal direction (first direction) of the mold part 40, A plurality of magnets 50 provided at corresponding positions on the molding surface 34, and a second magnetic body 60 having a required length extending along a short direction (second direction) intersecting the longitudinal direction. A first magnet 52 having a required length extending in a direction corresponding to the longitudinal direction (first direction) of the first magnetic body 58, and a direction corresponding to the short direction (second direction) of the second magnetic body 60. And a second magnet 54 having a required length extending in the length direction. Thus, when the mold part 40 is mounted on the molding surface 34, the first magnetic body 58 and the corresponding first magnet 52 are attracted to accurately position the mold part 40 in the short direction. In addition, the second magnetic body 60 and the corresponding second magnet 54 can be attracted to accurately position the mold part 40 in the longitudinal direction.
[0029]
In this case, when the length dimension Lm1 of the first magnet 52 is set larger than the length dimension Ls1 of the corresponding first magnetic body 58, the mold part 40 is mounted on the molding surface 34. Positioning of the mold part 40 in the short direction is simplified. Further, by setting the length dimension Lm2 of the second magnet 54 to be larger than the length dimension Ls2 of the corresponding second magnetic body 60, the mold part 40 is mounted when the mold part 40 is mounted on the molding surface 34. The positioning in the longitudinal direction is simplified. However, even when the length dimension Ls1 of the corresponding first magnetic body 58 is set larger than the length dimension Lm1 of the first magnet 52, when the mold part 40 is mounted on the molding surface 34, Positioning in the short direction is simplified.
[0030]
Also, in the mold part mounting structure of the second embodiment, since the positioning of the mold part 40 with respect to the molding surface 34 is not due to the uneven fitting as shown in FIG. Against the magnetic attraction force acting between the first magnet 52 and the first magnetic body 58 and the magnetic attraction force acting between the second magnet 54 and the second magnetic body 60. The mold part 40 is allowed to be separated from the molding surface 34. Accordingly, as in the mold part mounting structure of the first embodiment, the mold part 40 is easily separated from the molding surface 34 when the molding pad 12 is removed. Never come.
[0031]
Note that the mold part mounting structure to the molding die targeted by the present application is located at a required position on the outer surface of the molding pad 12 with respect to the molding surface 34 of the foam molding die 30 for molding the molding pad 12 illustrated in the above embodiment. It is not limited to mounting the mold part 40 holding the fastener member 20 to be mounted. That is, the mold is intended for various types such as an injection mold, a blow mold, and a vacuum mold in addition to the foam mold, and the mold parts are mounted on the molding surfaces of these molds. All of various shapes and sizes are targeted.
[0032]
【The invention's effect】
As described above, according to the mold part mounting structure to the molding die according to the present invention, when mounting the mold part on the molding surface of the molding die, the first magnet provided on the mold part and the correspondence provided on the molding surface are provided. By adsorbing the first magnetic body, the mold part can be accurately positioned in the second direction, and by adsorbing the second magnet provided on the mold part and the second magnetic body provided on the molding surface, There is an advantage that positioning in the first direction in the mold part can be performed accurately. Moreover, since the length dimensions of the first magnetic body and the second magnetic body are set larger than the length dimensions of the corresponding first magnet and second magnet, the positioning work of the mold part in the first direction and the second There is also an advantage that the positioning operation in the direction can be easily performed.
[0033]
Further, according to the mold part mounting structure to the mold according to another invention, when the mold part is mounted on the molding surface of the mold, the first magnetic body provided on the mold part and the corresponding first part provided on the molding surface are provided. It is possible to accurately position the mold part in the second direction by attracting one magnet, and the mold part by attracting the second magnetic body provided on the mold part and the second magnet provided on the molding surface. There is an advantage that positioning in the first direction can be performed accurately. Moreover, since the length dimensions of the first magnet and the second magnet are set larger than the length dimensions of the corresponding first magnetic body and second magnetic body, the positioning work of the mold part in the first direction and the second There is also an advantage that the positioning operation in the direction can be easily performed.
[0034]
According to the mold part mounting structure of the molding die according to each invention, the mold part is separated from the molding surface when the molding pad molded by the molding die is removed. Will not cause any trouble.
[Brief description of the drawings]
FIG. 1 is an explanatory perspective view schematically illustrating a mold part and a foaming mold that employ a structure for mounting a mold part to a mold according to a first embodiment.
FIG. 2 is an explanatory view showing a part of a mold part and a foaming mold in a planar state.
3A is a plan view showing the front side of a mold part, and FIG. 3B is a rear view showing the back side of the mold part.
FIG. 4 is an explanatory view showing a process of mounting a mold part on a molding surface of a foam mold over time, and (a) shows a state in which the mold part is brought close to a mounting part of the molding surface; b) shows a state where the first magnet and the first magnetic body are looking for a position where the first magnet and the first magnetic body are magnetically attracted by appropriately tilting the mold part left and right, and (c) shows the first magnet and the first magnetic body. Shows a state where the mold part is positioned in the short direction by magnetically adsorbing.
FIG. 5 is an explanatory view showing the process of mounting a mold part on the molding surface of a foam mold over time, and (a) slides the mold part positioned in the short direction to the left and right. Shows a state where a position where the second magnet and the second magnetic body are magnetically attracted is shown, (b) is a longitudinal positioning of the mold part by the magnetic adsorption of the second magnet and the second magnetic body. This shows a state where the mounting of the mold parts on the molding surface is completed.
6A is a sectional view taken along line VIa-VIa in FIG. 5B, and FIG. 6B is a sectional view taken along line VIb-VIb in FIG.
FIG. 7 is an explanatory cross-sectional view illustrating a mode in which a mold part is mounted on a vertical portion of a molding surface, and (a) shows a molding pad molded with the mold part mounted on the molding surface. (B) shows that the mold part is allowed to be separated from the molding surface when the molded pad is removed.
FIG. 8 is an explanatory perspective view schematically showing a mold part and a foaming mold adopting a mold part mounting structure to a mold according to a second embodiment.
FIG. 9 is an explanatory perspective view showing a molding pad and a skin material constituting a seat cushion in a vehicle seat in a state in which the skin material is attached to the molding pad.
10 is a perspective view simultaneously showing a state in which a fastener member mounted at a required position on the outer surface of the molding pad shown in FIG. 7 is viewed from the front surface side and the back surface side.
FIG. 11 is a perspective view illustrating a state where a fastener member is attached to a mold part attached to a molding surface of a foam molding die, with a part thereof omitted.
12 (a) is a partially omitted plan view showing the foaming mold for molding the molding pad shown in FIG. 7 in a state where a mold part holding a fastener member is mounted, and FIG. ) Is a sectional view taken along line XX of (a).
FIG. 13 (a) is a partial cross-sectional view showing a state where a molding pad is molded with a mold part holding a fastener member mounted, and FIG. 13 (b) is a diagram showing the molded molding pad. It is the fragmentary sectional view which showed the state which demolds.
FIG. 14 is an explanatory perspective view schematically showing a mold part and a foaming mold that adopt a conventional mold part mounting structure to a mold.
FIG. 15 is an explanatory cross-sectional view illustrating an aspect in which a mold part is mounted on a vertical part of a molding surface, and when the molded pad is removed, the mold part is caught in the recess, This indicates that there may be a disadvantage that the demolding of the material is restricted.
[Explanation of symbols]
12 Molding pad
20 Fastener member
34 Molding surface
40 type parts
50 magnets
52 1st magnet
54 Second magnet
56 Magnetic material
58 1st magnetic body
60 Second magnetic body
Lm1 Length dimension of the first magnet 52
Lm2 Length dimension of second magnet 54
Ls1 Length dimension of the first magnetic body 58
Ls2 Length dimension of second magnetic body 60

Claims

When mounting the mold part (40) of the required shape on the molding surface (34) of the molding die, the plurality of magnets (50) provided on the back surface of the mold part (40) and the corresponding positions of the molding surface (34) In the mold component mounting structure to the mold that uses the magnetic attractive force acting between the provided magnetic bodies (56),
A magnet (50) provided on the mold part (40) is connected to a first magnet (52) having a required length extending along a first direction of the mold part (40) and a first magnet intersecting the first direction. It consists of a second magnet (54) of the required length extending along two directions,
A magnetic body (56) provided on the molding surface (34) includes a first magnetic body (58) having a required length extending in a direction corresponding to the first direction of the first magnet (52), and the second A second magnetic body (60) having a required length extending in a direction corresponding to the second direction of the magnet (54), and when the mold part (40) is mounted on the molding surface (34), The first magnet (52) and the corresponding first magnetic body (58) are attracted to position the mold part (40) in the second direction, and the second magnet (54) and the corresponding second magnetism A mold part mounting structure for a mold, wherein the body (60) is adsorbed to position the mold part (40) in the first direction.

The length dimension (Ls1) of the first magnetic body (58) is set larger than the length dimension (Lm1) of the corresponding first magnet (52), and the length dimension (Ls2) of the second magnetic body (60). ) Is set larger than the length dimension (Lm2) of the corresponding second magnet (54).

When mounting the mold part (40) of the required shape on the molding surface (34) of the molding die, the corresponding positions of the plurality of magnetic bodies (56) provided on the back surface of the mold part (40) and the molding surface (34) In the mold component mounting structure to the mold that uses the magnetic attractive force acting between the plurality of magnets (50) provided in
The magnetic body (56) provided in the mold part (40) is crossed with the first magnetic body (58) having a required length extending along the first direction of the mold part (40) and the first direction. And a second magnetic body (60) having a required length extending along the second direction.
The magnet (50) provided on the molding surface (34) includes a first magnet (52) having a required length extending in a direction corresponding to the first direction of the first magnetic body (58), and the second magnetic material. A second magnet (54) of a required length extending in a direction corresponding to the second direction in the body (60),
When mounting the mold part (40) on the molding surface (34), the first magnetic body (58) and the corresponding first magnet (52) are attracted to the mold part (40) in the second direction. And positioning the mold part (40) in the first direction by attracting the second magnetic body (60) and the corresponding second magnet (54). Mold component mounting structure on the mold.

The length dimension (Lm1) of the first magnet (52) is set larger than the length dimension (Ls1) of the corresponding first magnetic body (58), and the length dimension (Lm2) of the second magnet (54). The mold part mounting structure to the molding die according to claim 3, wherein is set larger than the length dimension (Ls2) of the corresponding second magnetic body (60).

When the mold part (40) has an elongated shape, the first direction is the longitudinal direction of the mold part (40) and the second direction is the short direction of the mold part (40).
First, the first magnet (52) and the corresponding first magnetic body (58) are attracted and positioned in the short direction, and then the second magnet (54) and the corresponding second magnetic body (60) are attracted. The mold component mounting structure to the mold according to any one of claims 1 to 4, wherein positioning in the longitudinal direction is performed.

The mold part (40) includes a fastener member (20) mounted at a required position on the outer surface of a molding pad (12) that is foam-molded by the molding die, and the molding surface (before molding the molding pad (12)). 34. The mold component mounting structure to the molding die according to any one of claims 1 to 5, which is provided for holding the set in (34).

The mold part (40) is separable from the molding surface (34) together with the molding pad (12) to be removed after the molding of the molding pad (12) is completed. Mold component mounting structure on the mold.