JP3052501U - Male fastener and its mold structure - Google Patents
Male fastener and its mold structureInfo
- Publication number
- JP3052501U JP3052501U JP1998001708U JP170898U JP3052501U JP 3052501 U JP3052501 U JP 3052501U JP 1998001708 U JP1998001708 U JP 1998001708U JP 170898 U JP170898 U JP 170898U JP 3052501 U JP3052501 U JP 3052501U
- Authority
- JP
- Japan
- Prior art keywords
- male
- engaging element
- base
- fastener
- mold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
(57)【要約】
【課題】 本考案は、雌雄面ファスナーの脱着の繰り返
しにより、雌面ファスナーにおけるループ形状の雌係合
子の切断を解消した雄面ファスナーを安価に提供するこ
とを課題とする。
【解決手段】 予め所定長さ及び所定幅とした基帯と、
該基帯の表面に設けられる多数の鉤状の雄係合子を一体
として成形される雄面ファスナーにおいて、雄係合子
(1) は、基帯(2) より軟質であって且つ同種の熱可塑性
合成樹脂により一体成形したことを特徴とする雄面ファ
スナーと、該雄面ファスナーを成形するための金型構造
を課題を解決するための手段とするものである。
(57) [Summary] [PROBLEMS] To provide an inexpensive male fastener that eliminates the disconnection of the loop-shaped female engaging element in the female fastener by repeatedly attaching and detaching the male and female fasteners. . A base belt having a predetermined length and a predetermined width in advance,
A male fastener formed integrally with a plurality of hook-shaped male engaging members provided on the surface of the base band.
(1) A male fastener which is softer than the base belt (2) and is integrally formed of the same type of thermoplastic synthetic resin, and a mold structure for molding the male fastener. Is a means for solving the problem.
Description
【０００１】[0001]
本考案は、予め所定長さ及び所定幅とした基帯と、該基帯の表面に設けられる 鉤状の雄係合子を、一体として成形される雄面ファスナーに関するものである。 The present invention relates to a male fastener which is formed integrally with a base having a predetermined length and a predetermined width and a hook-shaped male engaging element provided on a surface of the base.
【０００２】[0002]
ループ状の雌係合子とフック状の雄係合子による係合を目的とした面ファスナ ーにおける雄部材となる雄面ファスナーについて、従来より種々の製法、構成の ものが考案されているが、これらの雄面ファスナーに関する問題点の一つとして 、雄係合子の形状等によっては、雌雄面ファスナーの脱着の繰り返しにより、雌 面ファスナーにおけるループ形状の雌係合子の切断あるいは雄面ファスナー自体 の抜け、切れが生ずる点が挙げられる。 Various types of male fasteners have been devised as male members in a surface fastener intended to be engaged by a loop-shaped female engaging element and a hook-shaped male engaging element. One of the problems with male fasteners is that, depending on the shape of the male engaging element, the male and female fasteners are repeatedly attached and detached, so that the loop-shaped female engaging element in the female fastener or the male fastener itself comes off. There is a point where cutting occurs.
【０００３】 これらの問題は、雄面ファスナーの先端の強度が強く、根元の強度が弱い場合 に雄面ファスナーの抜けあるいは切れが発生し、また先端、根元の強度が著しく 強い場合や、雌面ファスナー雄係合子の鉤状部分の横断面が角ばった形状である 場合に、あるいは雌面ファスナーにおけるループ形状の雌係合子の強度が著しく 弱い場合に、特に発生する。[0003] These problems are that the male fastener is pulled out or cut when the strength of the tip of the male fastener is strong and the strength of the root is weak, and when the strength of the tip or root is extremely strong, This problem occurs particularly when the cross section of the hook-shaped portion of the male fastener of the fastener has a square shape, or when the strength of the female fastener having a loop shape in the female surface fastener is extremely weak.
【０００４】 当該不具合に対しては、実開平４−３１５１２号（一体成形面ファスナーのフ ック構造）に示すように、基帯から滑らかな曲面上を傾斜して背面を立ち上げ、 前面を垂直上に立ち上げた形状とするとともに、根元部分に補強リブを具備させ 、更に雄係合子を先細りの形状とすることで、根元の強度を上げると同時に、係 合部分となる先端付近に可撓性を具備させたことを特徴とした雄面ファスナーが 考案されている。In order to solve the problem, as shown in Japanese Utility Model Application Laid-Open No. 4-31512 (Hook structure of integrally molded surface fastener), a smooth curved surface is inclined from the base band to raise the rear surface, and to raise the front surface. It has a vertically raised shape, a reinforcing rib at the base, and a tapered shape of the male engaging element to increase the strength of the base and at the same time, it is possible near the tip that is the engaging part. A male fastener characterized by having flexibility has been devised.
【０００５】 上記実開平４ー３１５１２号の補強リブ付きの雄面ファスナーにおいては、補 強リブによって雄係合子の根元部分を頑強なものとし、根元の強度を上げること によって、雄係合子の根元部分からの抜け、切れを防止するとともに、該雄係合 子の先端のみ細くすることで、可撓性を持たせ、雌係合子の切れを防止する効果 を有するものである。In the male fastener with a reinforcing rib described in Japanese Utility Model Application Laid-Open No. 4-31512, the root portion of the male engaging element is made strong by the reinforcing rib, and the root of the male engaging element is increased by increasing the strength of the root. It is possible to prevent the female engaging element from being cut off and to prevent the female engaging element from being cut off by making only the tip of the male engaging element thinner.
【０００６】 しかし、その一方で、補強リブの追加により、使用材料が極めて多くなったり 、通常の雄面ファスナーと比べて成形用金型が複雑となることから、生産コスト の上昇を招来する欠点がある。However, on the other hand, the addition of reinforcing ribs increases the amount of material used and the complexity of the molding die as compared with a normal male fastener, resulting in an increase in production cost. There is.
【０００７】[0007]
本考案は、雌雄面ファスナーの脱着の繰り返しにより、雌面ファスナーにおけ るループ形状の雌係合子の切断を解消した雄面ファスナーを極めて安価に提供す ることを課題とする。 It is an object of the present invention to provide a male fastener that eliminates the cutting of a loop-shaped female engaging element in the female fastener by repeating attachment and detachment of the male and female fasteners at extremely low cost.
【０００８】[0008]
予め所定長さ及び所定幅とした基帯と、該基帯の表面に設けられる多数の鉤状 の雄係合子を一体として成形される雄面ファスナーにおいて、雄係合子(1) は、 基帯(2) より軟質であって且つ同種の熱可塑性合成樹脂により一体成形したこと を特徴とする雄面ファスナーと、該雄面ファスナーを成形するための金型構造を 課題を解決するための手段とするものである。 In a male fastener formed integrally with a base band having a predetermined length and width and a plurality of hook-shaped male engaging members provided on the surface of the base band, the male engaging member (1) is (2) A male fastener characterized by being integrally molded with a softer and the same kind of thermoplastic synthetic resin, and a means for solving the problem with a mold structure for molding the male fastener. Is what you do.
【０００９】[0009]
【考案の実施の形態】及びDESCRIPTION OF THE PREFERRED EMBODIMENTS AND
図１は、本考案の実施例１に係る雄面ファスナーの断面図であり、図２は当該 実施例１に係る雄面ファスナーの成形金型構造を示す断面図、図３は、実施例２ に係る雄面ファスナー及びその成形金型構造を示す説明図である。 FIG. 1 is a sectional view of a male fastener according to a first embodiment of the present invention, FIG. 2 is a sectional view showing a molding die structure of the male fastener according to the first embodiment, and FIG. 1 is an explanatory view showing a male fastener according to the present invention and a molding die structure thereof.
【００１０】 図１に示すように、本考案の実施例１に係る雄面ファスナーは、予め長さ１０ ｃｍ、幅２５ｍｍとした基帯(2) と、該基帯(2) の表面に縦横配列して設けられ る多数の鉤状の雄係合子が一体として成形されるものであって、雄係合子(1) は ポリウレタンで硬度がＡ硬度８０のもの、基帯(2) は、ポリウレタンで硬度がＢ 硬度６０のものを使用している。As shown in FIG. 1, the male fastener according to the first embodiment of the present invention includes a base band (2) having a length of 10 cm and a width of 25 mm in advance, and a vertical and horizontal surface on the surface of the base band (2). A number of hook-shaped male engaging elements provided in an array are integrally formed, wherein the male engaging element (1) is polyurethane and has a hardness of A hardness of 80, and the base band (2) is polyurethane. And a hardness of 60 B hardness.
【００１１】 尚、ポリウレタンの硬度は上記実施例のものに限らず、雄係合子(1) では、Ａ 硬度６０から９５の範囲で、基帯(2) は、Ｂ硬度６０以上のものとして使用した 場合に、良好に使用することができる。[0011] The hardness of the polyurethane is not limited to that of the above embodiment. The male engaging element (1) has a hardness of 60 to 95 in A hardness, and the base belt (2) has a hardness of 60 or more in B hardness. In that case, it can be used well.
【００１２】 本実施例１における雄面ファスナーの成形金型構造は、図２に示すように、上 型(3) と下型(5) を組合せた後、側方から更に中間型(4) を組合わせて、雄係合 子用キャビティ(31)及び基帯用キャビティ(51)を形成する金型であって、前記上 型(3) は、その型合わせ面に縦断面略逆Ｕ字形の複数の溝部(35)を同一方向へ刻 設するとともに、それぞれの溝部(35)の逆Ｕ字形壁面に添って雄係合子形成用凹 部(32)を所定ピッチで刻設し、下型(5) は、閉型時に前記雄係合子用キャビティ (31)の一端と連通して基帯用キャビティ(51)を形成する基帯形成用凹部(50)を刻 設した構成とし、中間型(4) は、前記上型(3) の各溝部(35)へ側方から挿入して 雄係合子用キャビティ(31)を形成する中子杆(40)を具備し、雄係合子用ゲート(3 0)、基帯用ゲート(34)は、いずれも上型(3) のみに具備させたものである。As shown in FIG. 2, the molding die structure of the male fastener in the first embodiment is such that after the upper die (3) and the lower die (5) are combined, the intermediate die (4) To form a male engaging element cavity (31) and a base band cavity (51), wherein the upper mold (3) has a substantially inverted U-shaped vertical cross section on its mold mating surface. The plurality of grooves (35) are engraved in the same direction, and the male engaging element forming recesses (32) are engraved at a predetermined pitch along the inverted U-shaped wall surface of each groove (35). (5) has a structure in which a base forming recess (50) is formed in communication with one end of the male engagement element cavity (31) to form a base cavity (51) when the mold is closed, and (4) includes a core rod (40) that is inserted into each groove (35) of the upper mold (3) from the side to form a male engaging element cavity (31), and a male engaging element gate is provided. (30), the base gate (34) Also it is obtained by including only the upper mold (3).
【００１３】 ここで、雄係合子用キャビティ(31)に対しては、前記雄係合子用ゲート(30)よ り雄係合子を形成する前記軟質のポリウレタンを射出するものとし、基帯用キャ ビティ(51)に対しては、前記基帯用ゲート(34)から基帯(2) を形成する前記硬質 のポリウレタンを射出するものとしている。Here, it is assumed that the soft polyurethane forming the male engaging element is injected from the male engaging element gate (30) into the male engaging element cavity (31), and The rigid polyurethane forming the base band (2) is injected from the base gate (34) into the bitty (51).
【００１４】 尚、従来技術として先に記載した実開平４−３１５１２号の雄面ファスナーの 製造工程では、雄係合子をキャビティから引き抜かなければならない構成である ことから、引き抜いて離型する、いわゆる無理抜きを行なう際に、前記雄係合子 を極端に弾性変形させ、雄係合子の変形あるいは破損、耐久性低下等を招来する 虞れがあったが、本考案の実施例では、雄係合子形成用凹部(32)を上型にのみ設 け、中間型(4) を上型(3) の側方より挿入、離型することにより、無理抜きを行 なうことを要せず、上述のような不具合を除去するものとしている。In the manufacturing process of the male fastener described in Japanese Utility Model Application Laid-Open No. 4-31512 described above as the prior art, the male engaging element must be pulled out of the cavity. When forcibly removing the male engaging element, the male engaging element may be extremely elastically deformed, which may cause deformation or breakage of the male engaging element, decrease in durability, and the like. By forming the forming recess (32) only in the upper mold and inserting and releasing the intermediate mold (4) from the side of the upper mold (3), it is not necessary to perform forcible removal. Such defects as described above are to be eliminated.
【００１５】 また、本考案においては、図３に示した実施例２に係る雄面ファスナーのよう に、逆錨形としてもよい。この場合においても、雄係合子(1) の係合力が実施例 １と比べ高くなるが、基帯(2) を雄係合子(1) と比べて硬質とすることで、雄係 合子(1) の脚の根元の強度を確保するものとしている。Further, in the present invention, a reverse anchor may be used as in the male surface fastener according to the second embodiment shown in FIG. In this case as well, the engaging force of the male engaging element (1) is higher than that of the first embodiment, but by making the base band (2) harder than the male engaging element (1), ) To ensure the strength of the base of the legs.
【００１６】[0016]
本考案によれば、基帯を硬質とすることによって、基帯及び雄係合子の脚の根 元の強度が向上することから、雌係合子との繰り返しの脱着操作を行なうことに よって、雄係合子の根元部分の抜け、切れを防止することができる。 According to the present invention, the rigidity of the base increases the strength of the base of the base and the legs of the male engaging element, so that the male and female engaging elements are repeatedly detached from the female engaging element. It is possible to prevent the root portion of the engagement element from coming off or being cut off.
【００１７】 また、雄係合子を低密度あるいは軟質配合とすることによって、十分な可撓性 を具備させ、雌係合子との繰り返しの脱着操作を行なうことによっても、ループ 形状である雌係合子の切れを防止することができる。[0017] Furthermore, by making the male engaging element a low-density or soft compound, sufficient flexibility can be provided, and the female engaging element having a loop shape can be formed by repeatedly attaching and detaching the female engaging element. Can be prevented from being cut.
【００１８】 更に、本考案においては、密度、配合比が異なる同種の熱可塑性合成樹脂を用 いることによって、相互の樹脂がよくなじむことから、ウェルド不良、つまり成 形後に材質の相違によって雄係合子と基帯の層に境界が生じ、双方の樹脂が結合 しない状態を発生することもない。Further, in the present invention, since the same type of thermoplastic synthetic resin having different densities and compounding ratios is used, the mutual resins are well adapted to each other. A boundary does not occur between the layers of the resin and the base layer, and a state in which both resins are not bonded does not occur.
【００１９】 また、本考案においては同種の熱可塑性樹脂を用いていることから、硬度の差 があっても、射出成形温度、射出成形圧力等の条件を殆ど変えず、共通して行な うことも可能であり、このようにすることで、雄係合子と基帯の硬度の差異によ って設備の増設、稼動時間の増大等を招来せず、経済的な利点をも有するものと することができる。Further, in the present invention, since the same kind of thermoplastic resin is used, even if there is a difference in hardness, the conditions such as the injection molding temperature and the injection molding pressure are hardly changed, and are commonly performed. In this way, the difference in hardness between the male engaging element and the base band does not lead to an increase in equipment, increase in operating time, etc., and has economic advantages. can do.
【００２０】 一方、上型と下型を組合せた後、側方から更に中間型を組合わせ、閉型時に形 成される雄係合子のキャビティは上型のみに具備される金型によって成形するこ とによっては、キャビティ内から雄係合子を抜き出す際に、当該雄係合子を傷め ることがなく、安定した品質の雄面ファスナーを提供することができる。On the other hand, after combining the upper mold and the lower mold, an intermediate mold is further combined from the side, and the cavity of the male engaging element formed at the time of closing the mold is formed by a mold provided only in the upper mold. In this case, when the male engaging element is pulled out from the cavity, the male engaging element is not damaged and a male fastener with stable quality can be provided.
【００２１】 また、当該金型においては、上型に雄係合子のゲート位置を、下型に基帯のゲ ート位置を設けることにより、硬度等の異なる熱可塑性合成樹脂を、各々効率よ く供給することができる。Further, in the mold, by providing the gate position of the male engaging element in the upper mold and the gate position of the base band in the lower mold, the thermoplastic synthetic resins having different hardness and the like can be efficiently used. Can be supplied.
【００２２】 以上のように、本考案の雄面ファスナーは、当該成形金型構造の使用によって なされるものであり、基帯及び雄係合子を特性の異なる同種類の熱可塑性合成樹 脂を用いて一体とすることにより、基帯、雄係合子の双方の樹脂がなじみ、ウェ ルド不良を生じずに、確実に一体として成形することを可能とし、これによって 、初めて双方の硬質、軟質という物理的な特性を生かすことができ、具体的には 、雄係合子の柔軟性、基帯及び雄係合子の根元の十分な強度を発揮することが可 能となり、雄係合子の根元部分の切れ、抜け、雌係合子の切れ等を防止すること ができるばかりでなく、補強リブ等の追加を必要としないことから、生産コスト を低減することができ、極めて安価且つ安定した品質の雄面ファスナーとするこ とができる。As described above, the male surface fastener of the present invention is made by using the molding die structure, and uses the same type of thermoplastic synthetic resin having different characteristics for the base band and the male engaging element. By integrating them, the resin of both the base band and the male engaging element is adapted to each other, and it is possible to reliably mold them together without causing weld defects. In particular, it is possible to exhibit the flexibility of the male engaging element, the sufficient strength of the base and the root of the male engaging element, and the cutting of the root of the male engaging element. In addition to preventing the female fasteners from slipping out and the female engaging element, it does not require the addition of reinforcing ribs and the like, so that the production cost can be reduced and the male fastener with extremely low cost and stable quality can be obtained. What to do Can be.
【図１】本考案の実施例１に係る雄面ファスナーの断面
図である。FIG. 1 is a sectional view of a male fastener according to a first embodiment of the present invention.
【図２】本考案の実施例１に係る雄面ファスナーの成形
金型構造を示す断面図である。FIG. 2 is a cross-sectional view illustrating a molding die structure of the male surface fastener according to the first embodiment of the present invention.
【図３】本考案の実施例２に係る雄面ファスナーと、該
雄面ファスナーの成形金型構造を示す断面図である。FIG. 3 is a cross-sectional view illustrating a male fastener according to a second embodiment of the present invention and a molding die structure of the male fastener.
(1) 雄係合子 (2) 基帯 (3) 上型 (4) 中間型 (5) 下型 (30) 雄係合子用ゲート (31) 雄係合子用キャビティ (32) 雄係合子形成用凹部 (34) 基帯用ゲート (35) 溝部 (40) 中子杆 (50) 基帯形成用凹部 (51) 基帯用キャビティ (1) Male engaging element (2) Base (3) Upper mold (4) Middle mold (5) Lower mold (30) Gate for male engaging element (31) Cavity for male engaging element (32) For forming male engaging element Recess (34) Base gate (35) Groove (40) Core rod (50) Base forming recess (51) Base cavity
Claims (3)
該基帯の表面に設けられる多数の鉤状の雄係合子を一体
として成形される雄面ファスナーにおいて、雄係合子
(1) は、基帯(2) より軟質であって且つ同種の熱可塑性
合成樹脂により一体成形したことを特徴とする雄面ファ
スナー。A base having a predetermined length and a predetermined width in advance;
A male fastener formed integrally with a plurality of hook-shaped male engaging members provided on the surface of the base band.
(1) A male surface fastener which is softer than the base band (2) and is integrally formed of the same thermoplastic synthetic resin.
上とし、雄係合子(1) はポリウレタンのＡ硬度６０から
９５の範囲としたことを特徴とする請求項１記載の雄面
ファスナー。2. The male fastener according to claim 1, wherein the base band (2) has a B hardness of polyurethane of 60 or more, and the male engaging element (1) has a hardness range of 60 to 95 of the polyurethane. .
から更に中間型(4)を組合わすことによって雄係合子用
キャビティ(31)及び基帯用キャビティ(51)とを形成する
雄面ファスナー成形金型構造であって、 前記金型における上型(3) は、雄係合子用ゲート(30)を
具備し、その型合わせ面に縦断面略逆Ｕ字形の複数の溝
部(35)を同一方向へ刻設するとともに、それぞれの溝部
(35)の逆Ｕ字形壁面に沿って雄係合子形成用凹部(32)を
所定ピッチで刻設し、 下型(5) は、閉型時に雄係合子用キャビティ(31)の一端
と連通して基帯用キャビティ(51)を形成する基帯形成用
凹部(50)を刻設した構成とし、 中間型(4) は、前記上型(3) の各溝部(35)へ側方から挿
入して雄係合子用キャビティ(31)を形成する中子杆(40)
を具備した構成とし、 上型(3) 及び／又は中間型(4) に基帯用ゲート(34)を形
成したことを特徴とする雄面ファスナー成形金型構造。After the upper mold (3) and the lower mold (5) are combined, an intermediate mold (4) is further combined from the side to form a male engaging element cavity (31) and a base cavity (51). ), Wherein the upper die (3) of the die has a male engagement element gate (30), and a substantially inverted U-shaped vertical cross section is formed on the mating surface of the upper die (3). The grooves (35) are engraved in the same direction, and each groove
A male engaging element forming recess (32) is engraved at a predetermined pitch along the inverted U-shaped wall surface of (35), and the lower mold (5) communicates with one end of the male engaging element cavity (31) when the mold is closed. And a base forming recess (50) for forming a base cavity (51), and the intermediate mold (4) is laterally inserted into each groove (35) of the upper mold (3). Core rod (40) inserted to form cavity (31) for male engaging element
A male surface fastener forming die structure, characterized in that a base gate (34) is formed on the upper die (3) and / or the intermediate die (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1998001708U JP3052501U (en) | 1998-03-23 | 1998-03-23 | Male fastener and its mold structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1998001708U JP3052501U (en) | 1998-03-23 | 1998-03-23 | Male fastener and its mold structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3052501U true JP3052501U (en) | 1998-09-29 |
Family
ID=43186618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1998001708U Expired - Lifetime JP3052501U (en) | 1998-03-23 | 1998-03-23 | Male fastener and its mold structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3052501U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011526550A (en) * | 2008-07-01 | 2011-10-13 | アプリックス | Molded product having hook surface obtained by injection molding |
-
1998
- 1998-03-23 JP JP1998001708U patent/JP3052501U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011526550A (en) * | 2008-07-01 | 2011-10-13 | アプリックス | Molded product having hook surface obtained by injection molding |
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