JP2001138335A - Mold for in-mold holding and method for producing resin molding using the mold - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for producing a molding mold used for producing a resin molding which is small in size and excellent in productivity, safety, and working properties by a method in which during in-mold molding, a fitting member is positioned easily and held in the recession part of the molding mold, and while the intrusion of a resin composition such as a foaming resin on the engagement element side of the fitting member is prevented surely and a methods for producing the resin molding. SOLUTION: In a mold for in-mold molding, the recession part for sitting the fitting member on the inner surface of the molding mold is provided, a magnet is fitted to the bottom surface of the recession part, a sealing projection part continuing to shoulder parts existing in both end parts in the width direction of the recession part is provided.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】本発明は、自動車シートや事務用
椅子などのクッションやその他の樹脂成形体をモールド
イン成形する際に、この成形体表面に埋め込まれるモー
ルドイン成形用係止部材の装着に適した成形金型および
該金型を用いた樹脂成形体の製造に関するものである。
係止部材付きのクッションは、その表面を繊維布などの
被覆体で蔽い、被覆体を係止部材でクッションに固定し
て使用される。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the mounting of a mold-in molding locking member embedded in the surface of a molded article of a cushion or other resin molded article such as an automobile seat or office chair. The present invention relates to a molding die suitable for the method and the production of a resin molded article using the molding die.
The cushion with the locking member is used by covering the surface with a covering such as a fiber cloth and fixing the covering to the cushion with the locking member.

【０００２】[0002]

【従来の技術】一般に、自動車や事務用椅子などに用い
られるシートは、発泡ウレタンなどからなるクッション
の表面に、シートカバーを取付けて構成している。この
シートカバーの取付けにあたって、従来、ワイヤをクッ
ション用成形型の凹部に嵌合させてモールドイン成形
し、このワイヤとシートカバーとの間を多数の金属製固
定具で固定することにより、上記クッションにシートカ
バーを取付けるいわゆるホグリング法が採用されてい
る。このホグリング法において、上記固定具は電動工具
を用いて固定される。2. Description of the Related Art In general, seats used for automobiles and office chairs are constructed by attaching a seat cover to the surface of a cushion made of urethane foam or the like. Conventionally, when attaching the seat cover, the wire is fitted into the concave portion of the molding die for the cushion and molded in, and the wire and the seat cover are fixed with a large number of metal fixing members, thereby forming the cushion. The so-called hog ring method of attaching a seat cover to a vehicle is adopted. In the Hogling method, the fixture is fixed using a power tool.

【０００３】最近、自動車シートの成形方法として、表
面に多数の係合素子を、裏面に多数の埋設要素をそれぞ
れ備えた係止部材、即ち面ファスナーテープを、成形型
内の所定の位置にセットし、該成形型内に成形用樹脂を
注入して発泡させ、上記テープの埋設要素をクッション
表面に埋設一体化し、かつ、上記係合素子がクッション
の外表面に露出するように埋め込み成形する方法（いわ
ゆるモールドイン成形法）が提案されている。そして、
シートカバーには上記面ファスナーテープの係合素子に
係合可能な被係合素子が設けられ、これらの両素子を係
合させることにより、上記シートカバーがクッションに
沿わせて被覆される。Recently, as a method of forming an automobile seat, a locking member having a plurality of engaging elements on a front surface and a plurality of embedded elements on a back surface, that is, a hook-and-loop fastener tape, is set at a predetermined position in a forming die. A method of injecting a molding resin into the molding die to cause foaming, burying and integrating the buried element of the tape on the surface of the cushion, and embedding and molding such that the engaging element is exposed on the outer surface of the cushion. (A so-called mold-in molding method) has been proposed. And
The seat cover is provided with an engaged element capable of engaging with the engaging element of the hook-and-loop fastener tape, and by engaging these two elements, the seat cover is covered along the cushion.

【０００４】ところで、上記のモールドイン成形法で
は、上記係止部材を成形型に設けた凹部に装着して、成
形用樹脂（以下樹脂組成物と言うことがある）が係止部
材基板と成形型凹部の間隙から係合素子側に流入し該素
子を埋めるのを阻止する必要がある。In the above-described mold-in molding method, the locking member is mounted in a concave portion provided in a molding die, and a molding resin (hereinafter sometimes referred to as a resin composition) is molded with the locking member substrate. It is necessary to prevent the gas from flowing into the engagement element side from the gap of the mold concave part and filling the element.

【０００５】上記問題を解決する係止部材の１例が図４
に示される。係止部材Ａは面ファスナーの基板Ｂの表裏
両面に多数の係合素子Ｃと埋設要素Ｄとを備えた面ファ
スナーテープＥを用い、上記係合素子Ｃの上面にモール
ド成形時に成形型に埋設された磁石体に吸着するスチー
ル片Ｆを配置するとともに、このスチール片Ｆおよび係
合素子Ｃの全体をカバーフィルムＧで覆って、モールド
成形時に係合素子Ｃ側に成形樹脂組成物が流入するのを
阻止する構造を有する。このフィルムＧは、その外周縁
部が上記面ファスナーテープＥの周縁部に、粘接着剤や
ヒートシール手段などで接合一体化されている。FIG. 4 shows an example of a locking member that solves the above problem.
Is shown in The locking member A uses a surface fastener tape E having a large number of engaging elements C and buried elements D on both front and back surfaces of a surface fastener substrate B, and is embedded in a molding die at the time of molding on the upper surface of the engaging element C. The steel piece F to be attracted to the magnet body is arranged, and the steel piece F and the engaging element C are entirely covered with the cover film G, so that the molding resin composition flows into the engaging element C during molding. Having a structure that prevents The outer periphery of the film G is integrally joined to the periphery of the surface fastener tape E by an adhesive or a heat sealing means.

【０００６】そして、該係止部材Ａは、底面に磁石Ｊが
設置されている成形型の凹部Ｋに、上記スチール片Ｆを
その磁気吸引力を利用して固定する。この後成形型内に
発泡原液などの樹脂組成物を注入して、上記埋設要素Ｄ
が樹脂に埋め込まれたクッションなどの成形体を成形
し、クッションを取り出し、その後カバーフィルムＧと
スチール片Ｆとを取外し、面ファスナーの係合素子Ｃを
クッションの表面に露出させる。[0006] The locking member A fixes the steel piece F to the concave portion K of the molding die in which the magnet J is installed on the bottom surface by using its magnetic attraction force. Thereafter, a resin composition such as an undiluted foam solution is injected into a molding die, and the above-mentioned buried element D
A molded product such as a cushion embedded in a resin is formed, the cushion is taken out, the cover film G and the steel piece F are removed, and the engaging element C of the hook-and-loop fastener is exposed on the surface of the cushion.

【０００７】他の一例として特開昭６４−９７０８号に
開示されるモールドイン用の係止部材がある。該係止部
材は、面ファスナーの全周端部に表面または裏面に向い
た凹溝部を設け、一方成形型の面ファスナー装着部の周
縁に凸部または凹部を設け、面ファスナーの凹溝部と成
形型の凹部周縁の凸または凹部を嵌着する構造である。
該係止部材では面ファスナーの周縁部に凹溝部とその外
側に耳部を設けており、その両構造により係止部材は成
形型の装着部に嵌着されると考えられる。As another example, there is a locking member for mold-in disclosed in JP-A-64-9708. The locking member is provided with a concave groove facing the front or rear surface at the entire peripheral end of the hook-and-loop fastener, while a convex or concave portion is provided at the peripheral edge of the hook-and-loop fastener mounting portion of the molding die, and is formed with the concave groove of the hook-and-loop fastener. This is a structure in which a protrusion or a recess at the periphery of the recess of the mold is fitted.
In the locking member, a concave groove portion is provided on the peripheral edge portion of the hook-and-loop fastener and an ear portion is provided outside the groove portion, and the locking member is considered to be fitted to the mounting portion of the molding die by both structures.

【０００８】さらに、実開平３−５８１０９号に示され
る係止部材は、面ファスナーテープの外周に断面矩形の
嵌合部材を装着する構造で、面ファスナーテープの幅が
嵌合部材の分だけ増して、面ファスナーテープが大型化
する欠点がある。また、上記嵌合部材は、面ファスナー
テープとは別個に成形されて、面ファスナーテープの外
周に装着されるので、装着作業が面倒で生産性に劣る欠
点もある。Further, the locking member disclosed in Japanese Utility Model Laid-Open No. 3-58109 has a structure in which a fitting member having a rectangular cross section is attached to the outer periphery of the hook-and-loop fastener, and the width of the hook-and-loop fastener tape is increased by the width of the fitting member. Therefore, there is a disadvantage that the hook-and-loop fastener tape becomes large. Further, since the fitting member is formed separately from the hook-and-loop fastener tape and is mounted on the outer periphery of the hook-and-loop fastener tape, there is a disadvantage that mounting work is troublesome and productivity is poor.

【０００９】[0009]

【発明が解決しようとする課題】ところが、上述したホ
グリング法によるときには、上記シートカバーをクッシ
ョンに固定するとき、多数の固定具を必要とし、多大の
手間も要する。しかも、これら固定具は電動工具で取付
けられるため、怪我をしたり腱鞘炎になるなど安全およ
び労働衛生上に問題があり、その上、樹脂材料にワイヤ
や固定具などの金属部品が混在しているので、使用後の
樹脂材料のリサイクルが行いにくい欠点もある。However, when the above-described hog ring method is used, when the seat cover is fixed to the cushion, a large number of fixing tools are required, and much labor is required. In addition, since these fixtures are attached with an electric tool, there are problems in safety and occupational health such as injury and tendonitis, and metal parts such as wires and fixtures are mixed in the resin material. Therefore, there is a disadvantage that it is difficult to recycle the used resin material.

【００１０】また、図４に示したモールドイン成形手段
による場合は、上記クッションの成形後に、上記スチー
ル片ＦとファスナーカバーフィルムＧとを取外す必要が
あるが、これらの部材は廃棄物となって処分する必要が
生ずる。しかも、上記フィルムＧの取外し時に、フィル
ム屑が上記係合素子面に残ると、係合素子の露出を妨げ
係合力を低下させ、また外観が悪くなったりするため、
細心で面倒な取外作業が必要となる。その作業には手間
がかかり、その上、前記スチール片Ｆの取外時に手指の
怪我を招く恐れもあった。In the case of the mold-in molding means shown in FIG. 4, it is necessary to remove the steel piece F and the fastener cover film G after molding the cushion, but these members become waste. Need to be disposed of. Moreover, when the film debris remains on the engaging element surface when the film G is removed, exposure of the engaging element is hindered, the engaging force is reduced, and the appearance is deteriorated.
Careful and troublesome removal work is required. The work is troublesome, and furthermore, there is a risk of injuries to fingers when removing the steel piece F.

【００１１】特開昭６４−９７０８号に示される係止部
材は、面ファスナーの端部に設ける構造が複雑であり、
成形型の凹部の周縁にも凹部か凸部を設ける必要があ
り、その製造を複雑にする欠点がある。従って、より簡
単な構造で十分な効果を得る係止部材が求められてい
た。また、該ファスナーは周縁部に係合素子が存在しな
い部分を有するので、ファスナー巾が大きくなる。細巾
のテープを取り付ける場合は、埋設要素や係合素子の数
が少なくなり、成形体への係止部分の固定や被覆体の係
止が十分でない。The locking member disclosed in JP-A-64-9708 has a complicated structure provided at the end of the hook-and-loop fastener.
It is necessary to provide a concave portion or a convex portion also on the periphery of the concave portion of the molding die, and there is a drawback that the production thereof is complicated. Therefore, there has been a demand for a locking member that can obtain a sufficient effect with a simpler structure. Further, since the fastener has a portion where the engagement element does not exist at the peripheral edge, the width of the fastener is increased. When a narrow tape is attached, the number of buried elements and engaging elements is reduced, and the fixing of the locking portion to the molded body and the locking of the covering are not sufficient.

【００１２】本発明は、以上のような問題に鑑みてなさ
れたもので、その目的は、モールドイン成形時に、構造
の簡単な係止部材を用いて成形型の凹部内に係止部材を
固定し、かつ、この係止部材の係合素子側に発泡原液な
どの樹脂組成物が流入するのを確実に阻止することがで
き、しかも、小形で、生産性、安全性および作業性に優
れたモールドイン成形用金型と、それを用いた樹脂成形
体の製造方法を提供することにある。The present invention has been made in view of the above problems, and has as its object to fix a locking member in a concave portion of a mold using a locking member having a simple structure during mold-in molding. In addition, it is possible to reliably prevent the resin composition such as the undiluted foam solution from flowing into the engaging element side of the locking member, and it is small and excellent in productivity, safety and workability. An object of the present invention is to provide a mold-in molding die and a method for producing a resin molded body using the same.

【００１３】[0013]

【課題を解決するための手段】即ち本発明は、成形金型
の内面に係止部材を装着する凹部を有し、該凹部の底面
に磁石を設置し、さらに該凹部の巾方向の両端部にある
肩部に連続したシール用突部を有することを特徴とする
モールドイン成形用金型である。That is, the present invention has a concave portion for mounting a locking member on the inner surface of a molding die, a magnet is provided on the bottom surface of the concave portion, and furthermore, both ends in the width direction of the concave portion. A mold for molding in a mold, characterized in that the mold has a sealing projection continuous with a shoulder portion of the mold.

【００１４】また本発明は、基板の表面に多数の係合素
子を有し、基板の裏面に樹脂に対する埋設素子を有し、
かつ基板の少なくとも１面にフェライトを含有する層を
有する係止部材を、成形金型の内面にある凹部に装着す
る方法において、該凹部の底面に設けられた磁石がフェ
ライト含有層を吸引し、さらに該凹部の巾方向の両端部
の肩部にある連続したシール用突部と該係止部材の平坦
な端部を密着してシールし、該金型に樹脂を導入し硬化
することを特徴とする樹脂成形体の製造方法である。Further, according to the present invention, there are provided a plurality of engagement elements on the front surface of the substrate, and a buried element for resin on the back surface of the substrate.
And in a method of mounting a locking member having a layer containing ferrite on at least one surface of the substrate in a recess on the inner surface of the molding die, a magnet provided on the bottom surface of the recess attracts the ferrite-containing layer, Further, the continuous sealing projections at the shoulders at both ends in the width direction of the concave portion and the flat end of the locking member are tightly sealed, and the resin is introduced into the mold and cured. This is a method for producing a resin molded article.

【００１５】以下、図面によって本発明を説明する。図
１は本発明の成形金型（以下、成形型ということがあ
る）の１例を示す透視斜視図である。金型は公知の方法
で作成され、全体の形状は目的とする樹脂成形体の形状
に対応する。矩形の金型１の底面に装着する係止部材の
形状に応じて縦長の凹部２がある。該凹部を構成する巾
方向に設けられた２つの壁の端面に肩部３があり、該肩
部にはシール用の連続した突部４が設けられる。シール
用突部は肩部の長さ方向に連続することが必要であり、
その高さを可及的に均一とすることが好ましい。その高
さは約０．１〜約２ｍｍが好ましく、その断面形状は、
円弧状、三角形、矩形状などの各種のものとすることが
できる。さらに該凹部の底面には磁石５が設けられる。The present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an example of a molding die (hereinafter, sometimes referred to as a molding die) of the present invention. The mold is prepared by a known method, and the entire shape corresponds to the shape of the target resin molded product. There is a vertically long concave portion 2 according to the shape of the locking member mounted on the bottom surface of the rectangular mold 1. The shoulders 3 are provided at the end faces of the two walls provided in the width direction of the recess, and a continuous projection 4 for sealing is provided on the shoulders. The projection for the seal must be continuous in the length direction of the shoulder,
It is preferable to make the height as uniform as possible. Its height is preferably about 0.1 to about 2 mm, and its cross-sectional shape is
Various shapes such as an arc, a triangle, and a rectangle can be used. Further, a magnet 5 is provided on the bottom surface of the concave portion.

【００１６】図２は本発明の樹脂成形体の製造に使用さ
れる係止部材の１例を示す断面図である。係止部材はそ
の基板６の表面側に多数の係合素子７を有し、裏面側に
は少なくとも１条の樹脂に対する埋設素子８を有する。
係止部材は、巾方向の両端に装着用の平坦な端部９を有
する。また基板の表裏面の少なくとも１面にフェライト
を含有する層１０を有する。図２の係止部材は、その裏
面にフェライト含有層を有する。フェライト含有層は、
表面裏面の一面または両面に設けることができる。FIG. 2 is a sectional view showing an example of a locking member used for manufacturing the resin molded article of the present invention. The locking member has a large number of engaging elements 7 on the front side of the substrate 6 and at least one embedded element 8 for resin on the back side.
The locking member has flat ends 9 for mounting at both ends in the width direction. Further, at least one of the front and back surfaces of the substrate has a layer 10 containing ferrite. The locking member of FIG. 2 has a ferrite-containing layer on the back surface. The ferrite-containing layer is
It can be provided on one or both sides of the front and back surfaces.

【００１７】本発明に使用する係止部材は、ポリオレフ
ィン系樹脂、ポリエステル系樹脂、ポリアミド系樹脂な
どの熱可塑性樹脂が使用でき、成形性の点からポリプロ
ピレンなどのポリオレフィンが好ましい。本発明の係止
部材は、上記の熱可塑性樹脂を所定のスリットを設けた
ノズルから溶融押出し、基板の両表面に連続した列条を
有するテープを形成し、表面にある連続列条に小間隔で
切れ目を入れ、次いでテープを長さ方向に延伸すること
により、表面に多数の係合素子を有し裏面に１または複
数の列条の埋設素子を有する係止部材が得られる。係合
素子および埋設要素の高さは、特に制限はないが、通常
約１ｍｍないし約１５ｍｍ、より好ましくは約２ｍｍな
いし６ｍｍである。As the locking member used in the present invention, a thermoplastic resin such as a polyolefin resin, a polyester resin or a polyamide resin can be used, and a polyolefin such as polypropylene is preferable from the viewpoint of moldability. The locking member of the present invention melt-extrudes the above-mentioned thermoplastic resin from a nozzle provided with a predetermined slit to form a tape having continuous lines on both surfaces of the substrate, and a small gap is formed between the continuous lines on the surface. Then, the tape is stretched in the longitudinal direction to obtain a locking member having a large number of engaging elements on the front surface and one or more rows of buried elements on the back surface. The height of the engagement element and the buried element is not particularly limited, but is usually about 1 mm to about 15 mm, and more preferably about 2 mm to 6 mm.

【００１８】フェライト含有層は、市販のフェライト粒
子をゴム系接着剤などに混合した組成物を、スプレーや
ノズルガンにて、目的とする係止部材の面に塗布する。
この際にフェライト含有層が厚すぎて、係合素子や埋設
素子を埋めないことが必要である。従来技術の金属片を
フェライト含有層に変えることにより、係止部材の製造
効率が向上し、コストが低減し、さらにそれを用いて樹
脂成形体を製造する際に、工程の省略と効率が向上する
効果がある。For the ferrite-containing layer, a composition obtained by mixing commercially available ferrite particles with a rubber-based adhesive or the like is applied to the surface of the target locking member by spraying or a nozzle gun.
At this time, it is necessary that the ferrite-containing layer is too thick and the engaging element and the buried element are not buried. By changing the metal piece of the prior art to a ferrite-containing layer, the manufacturing efficiency of the locking member is improved, the cost is reduced, and when manufacturing a resin molded body using it, the omission of the process and the efficiency are improved Has the effect of doing

【００１９】図３は、図１の成形金型に図２の係止部材
を装着した状態を示す断面模式図である。係止部材は成
形金型の底面にある凹部２に、係合素子７が凹部２に嵌
入するように装着される。係止部材はその両端部の平坦
面９を金型肩部のシール用突部４に密着させ、その間の
隙間をシールする。該シールによって、成形金型に成形
用の樹脂が導入された時に、樹脂が凹部に侵入して係合
素子を埋めることを防ぐ。係止部材の長さ方向の端部
は、樹脂の粘度が高い場合は、凹部内に侵入する樹脂が
少ないので、特にそのシールを考慮しなくてもよい。樹
脂の粘度が低く、樹脂の浸入が多い場合は、係止部材の
長さ方向の係合素子のある両端部に、繊維塊または発泡
樹脂片などを付与してシール部とし、樹脂が凹部に侵入
することを防ぐ。FIG. 3 is a schematic sectional view showing a state in which the locking member of FIG. 2 is mounted on the molding die of FIG. The locking member is mounted in the recess 2 on the bottom surface of the molding die so that the engaging element 7 fits into the recess 2. The locking member brings the flat surfaces 9 at both ends into close contact with the sealing projections 4 on the mold shoulder, and seals the gap therebetween. The seal prevents the resin from entering the recess and filling the engagement element when the molding resin is introduced into the molding die. When the viscosity of the resin is high, a small amount of resin penetrates into the concave portion at the end portion in the length direction of the locking member. When the viscosity of the resin is low and the amount of infiltration of the resin is large, a fiber mass or a foamed resin piece is applied to both ends of the engaging member in the longitudinal direction of the engaging element to form a seal portion, and the resin is formed in the concave portion. Prevent intrusion.

【００２０】凹部の底面に磁石５が埋設されており、係
止部材にあるフェライト含有層１０を吸引して、係止部
材の凹部への装着と固定を確実にし、さらに凹部の肩部
にあるシール用突部と係止部材の密着を確実にする。係
止部材の巾は凹部の肩部間の巾とほぼ等しいのが好まし
い。凹部の巾よりかなり大きいと、樹脂の導入時または
樹脂の重合硬化時に、係止部材に不要な力がかかり、係
止部材の装着やシールを阻害する恐れがある。また凹部
の巾よりかなり小さいと、金型の凹部の肩部のシール用
突部による係止部材のシールが不確実となり、樹脂が凹
部へ侵入する恐れがある。A magnet 5 is buried in the bottom surface of the concave portion, and the ferrite-containing layer 10 in the locking member is sucked to ensure the mounting and fixing of the locking member in the concave portion. Ensure that the sealing projection and the locking member are in close contact with each other. The width of the locking member is preferably substantially equal to the width between the shoulders of the recess. If the width is considerably larger than the width of the concave portion, an unnecessary force is applied to the locking member when the resin is introduced or when the resin is polymerized and cured, which may hinder the mounting and sealing of the locking member. If the width is considerably smaller than the width of the concave portion, the sealing of the locking member by the sealing projection at the shoulder of the concave portion of the mold becomes uncertain, and the resin may enter the concave portion.

【００２１】[0021]

【実施例】以下、本発明の実施例を図面に基づいてさら
に説明する。図３は、本発明に係る成形用係止部材の適
用例として、自動車用シートクッションの製造に使用で
きる。図3に示したように、係止部材を型の凹部に装着
した状態で、成形型にポリウレタンなどの樹脂を注入し
て発泡させる。樹脂の硬化後に成形型からクッションを
外部に取出すことにより、このクッションの表面に係止
部材が一体的に埋め込まれた成形体が得られる。ここ
で、係止部材の係合素子は、その表面が発泡樹脂で覆わ
れることなく、クッションの外表面に確実に露出する。
また、係止部材の裏面の埋設素子が上記クッション内に
埋め込まれることにより、本係止部材がクッションに強
固に取付けられる。Embodiments of the present invention will be further described below with reference to the drawings. FIG. 3 can be used for manufacturing an automobile seat cushion as an application example of the molding locking member according to the present invention. As shown in FIG. 3, a resin such as polyurethane is injected into the molding die and foamed while the locking member is mounted in the concave portion of the die. By taking out the cushion from the mold after the resin is cured, a molded body in which the locking member is integrally embedded in the surface of the cushion is obtained. Here, the engaging element of the locking member is reliably exposed to the outer surface of the cushion without its surface being covered with the foamed resin.
In addition, the embedded member on the back surface of the locking member is embedded in the cushion, so that the locking member is firmly attached to the cushion.

【００２２】得られたクッションの表面にシートカバー
をかぶせ、クッションの表面に露出される上記係止部材
の係合素子に、シートカバーの裏面側に設けた被係合素
子（ループ状繊維や起毛繊維）を係合させることによ
り、シートカバーがクッションの外観形状に沿って密着
状に確実に被覆される。クッションの細くて深い溝部に
本係止部材を使用すれば、シートカバーをクッション内
に吊り込むように固定でき、クッションの表面に密接し
てシートカバーを装着し、風合いの優れたシートが得ら
れる。なお、本発明にかかる成形用係止部材の適用例と
して自動車用クッションを示したが、このクッションに
限らず、他のモールド成形体にも適用することができ
る。A seat cover is put on the surface of the obtained cushion, and the engaging element (loop-like fiber or brushed fiber) provided on the back side of the seat cover is placed on the engaging element of the locking member exposed on the surface of the cushion. By engaging the fibers, the seat cover is securely covered in close contact with the outer shape of the cushion. By using this locking member in the narrow and deep groove of the cushion, the seat cover can be fixed so as to be suspended in the cushion, the seat cover is attached closely to the surface of the cushion, and a sheet with excellent texture can be obtained. . In addition, although the cushion for automobiles was shown as an application example of the locking member for molding according to the present invention, the present invention is not limited to this cushion but can be applied to other molded articles.

【００２３】[0023]

【発明の効果】本発明の成形用金型は、係止部材を成形
型内の凹部に簡単かつ確実に保持でき、しかも構造の簡
単な係止部材が使用できる。そして成形型凹部の巾方向
の間隙の封止が優れ、樹脂組成物の係合素子側への流入
を確実に阻止することがでる。クッションの製造に本成
形金型を使用すれば、シートカバーをクッションに吊り
込むように固定でき、クッションの表面に密接してシー
トカバーを装着し、風合いの優れたシートが得られる。
また、生産性、安全性および作業性にも優れたものとな
る。According to the molding die of the present invention, the locking member can be easily and reliably held in the concave portion in the molding die, and a locking member having a simple structure can be used. Further, the sealing of the gap in the width direction of the concave portion of the molding die is excellent, and the inflow of the resin composition to the engagement element side can be reliably prevented. If this molding die is used for the production of the cushion, the seat cover can be fixed so as to be hung on the cushion, and the seat cover is attached in close contact with the surface of the cushion, so that a sheet with excellent texture can be obtained.
Further, productivity, safety and workability are also excellent.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の成形金型の１例を示す透視斜視図。FIG. 1 is a perspective view showing an example of a molding die according to the present invention.

【図２】本発明の樹脂成形体の製造に使用される係止部
材の１例を示す断面図。FIG. 2 is a cross-sectional view showing one example of a locking member used for manufacturing the resin molded body of the present invention.

【図３】図１の成形金型に図２の係止部材を装着した状
態を示す断面模式図。FIG. 3 is a schematic cross-sectional view showing a state where the locking member of FIG. 2 is mounted on the molding die of FIG. 1;

【図４】従来の係止部材を示す断面図。FIG. 4 is a sectional view showing a conventional locking member.

【符号の説明】[Explanation of symbols]

１…成形金型、２…凹部、３…凹部の肩部、４…シール
用突部、５…磁石、６…基板、７…係合素子、８…埋設
素子、９…平坦端部、１０…フェライト含有層DESCRIPTION OF SYMBOLS 1 ... Molding die, 2 ... concave part, 3 ... concave part shoulder part, 4 ... sealing protrusion, 5 ... magnet, 6 ... substrate, 7 ... engaging element, 8 ... embedded element, 9 ... flat end part, 10 ... Ferrite-containing layer

フロントページの続き (72)発明者 小川 史郎 大阪市北区梅田１丁目12番39号 株式会社 クラレ内 Ｆターム(参考） 4F202 AA42 AD05 AD24 AG20 AG28 AH26 AH51 CA01 CB01 CB12 CQ01 CQ06 Continuation of the front page (72) Inventor Shiro Ogawa 1-112-39 Umeda, Kita-ku, Osaka F-term in Kuraray Co., Ltd. 4F202 AA42 AD05 AD24 AG20 AG28 AH26 AH51 CA01 CB01 CB12 CQ01 CQ06

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 成形金型の内面に係止部材を装着する凹
部を有し、該凹部の底面に磁石を設置し、さらに該凹部
の巾方向の両端部にある肩部に連続したシール用突部を
有することを特徴とするモールドイン成形用金型。An inner surface of a molding die has a concave portion for mounting a locking member, a magnet is provided on a bottom surface of the concave portion, and a seal is formed on shoulders at both ends in a width direction of the concave portion. A mold-in-molding mold having a projection. 【請求項２】 基板の表面に多数の係合素子を有し、基
板の裏面に樹脂に対する埋設素子を有し、かつ基板の少
なくとも１面にフェライトを含有する層を有する係止部
材を、成形金型の内面にある凹部に装着する方法におい
て、該凹部の底面に設けられた磁石がフェライト含有層
を吸引し、さらに該凹部の巾方向の両端部の肩部にある
連続したシール用突部と該係止部材の平坦な端部を密着
してシールし、該金型に樹脂を導入し硬化することを特
徴とする樹脂成形体の製造方法。2. A locking member having a large number of engagement elements on a surface of a substrate, a buried element for resin on a back surface of the substrate, and a layer containing ferrite on at least one surface of the substrate. In a method of mounting in a concave portion on an inner surface of a mold, a magnet provided on a bottom surface of the concave portion attracts the ferrite-containing layer, and further has a continuous sealing projection at a shoulder at both ends in a width direction of the concave portion. And a flat end portion of the locking member is tightly sealed, and a resin is introduced into the mold and cured to form a resin molded body.