JP4172866B2

JP4172866B2 - Synthetic resin male fittings for snap fasteners

Info

Publication number: JP4172866B2
Application number: JP01504699A
Authority: JP
Inventors: 精武田
Original assignee: 武田精機株式会社
Priority date: 1999-01-25
Filing date: 1999-01-25
Publication date: 2008-10-29
Anticipated expiration: 2019-01-25
Also published as: JP2000210106A

Description

【０００１】
【発明の属する技術分野】
本発明は、スナップファスナー用の合成樹脂製雄型嵌合部材に関する。
【０００２】
【従来の技術】
一般に、スナップファスナー用の合成樹脂製雄型嵌合部材は、その基本的形態が金属製製雄型嵌合部材の基本的形態に由来しており、図８に示すように、リベット部材の頭部に対向する直径に設定された基板部ａと、その上面から上方へ立ち上がり且つ上端外周に膨出部ｂが形成された筒状部（雌スナップの凹部に嵌入するための筒状部）ｃと、中央にリベット状部材の突起を挿入するための貫通孔ｄが形成された円形板部ｅとから構成されている。Ｈ₁は、雌スナップの凹部に対する筒状部ｃの嵌合深さであり、Ｈ₂は、基板部ａの底面と円形板部ｅの底面との間に付けた段差、Ｈ₃は、基板部ａの厚みである。
【０００３】
段差Ｈ₂は、スナップファスナー取付け用自動機の雄型嵌合部材供給用ポッパーからシュートを経て、リベット部材とのカシメ止めを行う打ち込み具へと、合成樹脂製雄型嵌合部材を一定姿勢で取り出す際に、合成樹脂製雄型嵌合部材の上下を判別するのに必要とされる。
【０００４】
従って、従来の合成樹脂製雄型嵌合部材では、少なくとも、Ｈ₁＋Ｈ₂＋Ｈ₃の厚さが必要とされており、合成樹脂製雄型嵌合部材とリベット部材とで構成される雄スナップの厚みが厚くなる傾向があった。
【０００５】
【発明が解決しようとする課題】
上記の現状に鑑み、本発明は、雄スナップの厚みを薄くすることができるようにしたスナップファスナー用の合成樹脂製雄型嵌合部材を提供せんとするものである。
【０００６】
【課題を解決するための手段】
上記の課題を解決するために、本発明が講じた技術的手段は、次のとおりである。即ち、本発明によるスナップファスナー用の合成樹脂製雄型嵌合部材は、中央にリベット状部材の突起を挿入するための貫通孔が形成された円形板部と、その外周部から上方へ立ち上がり且つ上端外周に膨出部が形成された雌スナップの凹部に嵌入するための筒状部とからなり、筒状部の底面と円形板部の底面との間に段差が付けられ、且つ、膨出部が周方向に間隙をおいて複数の円弧状に区画されているスナップファスナー用の合成樹脂製雄型嵌合部材であって、筒状部が、内側筒部と、外側筒部と、両者の上端間に位置する環状の天板部とを備えており、内側筒部と外側筒部の間に下方へ開口した溝が形成されていることを特徴としている。
【０００７】
上記の構成によれば、スナップファスナー用の合成樹脂製雄型嵌合部材が、円形板部と筒状部とから構成されており、従来の合成樹脂製雄型嵌合部材における基板部に相当する部分が存在しないので、合成樹脂製雄型嵌合部材の厚さが薄くなり、合成樹脂製雄型嵌合部材とリベット部材とで構成される雄スナップの厚みを薄くすることができる。
【０００８】
また、雄スナップを構成した状態、つまり、リベット部材の突起を基布に刺し通して円形板部の中央貫通孔に挿入し、突起先端部を打撃してカシメ止めした状態において、基布は、円形板部とリベット部材頭部の突起近辺の裏面とで強く挟持されるので、基板部に相当する部分を除去した形状であっても、実用上の支障はない。
【０００９】
また、膨出部が周方向に間隙をおいて複数の円弧状に区画されているので、雌スナップの凹部に嵌入した筒状部を外す際、負圧が生じにくくなり、スナップ作用（雌雄スナップの嵌合および嵌合離脱）を良好に行えることになる。
【００１０】
殊に、筒状部が、内側筒部と、外側筒部と、両者の上端間に位置する環状の天板部とを備えており、内側筒部と外側筒部の間に下方へ開口した溝が形成されているので、筒状部の外側筒部が半径方向に弾性変形しやすくなり、スナップ作用（雌雄スナップの嵌合および嵌合離脱）を良好に行えることになる。
【００１１】
請求項２に記載の発明のように、筒状部が、内側筒部と、外側筒部と、両者の上端間に位置する環状の天板部と、内側筒部と外側筒部の間に形成された下方へ開口した溝を膨出部の間隙に対応する位置において区画する放射状のリブとを備えていると、筒状部の外側筒部が膨出部の位置では半径方向に弾性変形しやすくなるが、膨出部の間隙に対応する位置においては、半径方向への弾性変形がリブによって抑制される。従って、外側筒部の過度の変形が防止されることになり、布地の厚さに影響されることなく、安定したスナップ作用が可能となる。
【００１２】
請求項３に記載の発明のように、環状の天板部に、溝と連通するスリットが形成されていると、筒状部の外側筒部が膨出部の位置においては半径方向へより一層弾性変形しやすくなり、僅かな操作力でスナップ作用を行えることになる。
【００１３】
【発明の実施の形態】
図１は、本発明に係る合成樹脂製雄型嵌合部材１の一例を示し、図２は、前記合成樹脂製雄型嵌合部材１Ａを用いて構成したスナップファスナーを示す。このスナップファスナーは、雄スナップＡと雌スナップＢとから構成され、雄スナップＡは、合成樹脂製雄型嵌合部材１Ａと、それを基布（例えば、衣服の生地）Ｃに止着する合成樹脂製のリベット状部材２Ａとから構成され、雌スナップＢは、合成樹脂製雌型嵌合部材１Ｂと、それを基布Ｃに止着する合成樹脂製のリベット状部材２Ｂとから構成されている。３ａ，３ｂは、リベット状部材２Ａ，２Ｂの突起、４ａ，４ｂはリベット状部材２Ａ，２Ｂの頭部である。
【００１４】
合成樹脂製雄型嵌合部材１Ａは、中央にリベット状部材２Ａの突起３ａを挿入するための貫通孔５が形成された円形板部６と、その外周部から上方へ立ち上がり且つ上端外周に膨出部７が形成された筒状部（雌スナップＢの凹部９に嵌入するための筒状部）８とから構成され、筒状部８の底面と円形板部６の底面との間に段差Ｈ₂が付けられている。Ｈ₁は、雌スナップＢの凹部９に対する筒状部８の嵌合深さである。膨出部７は、筒状部８が雌スナップＢの凹部（奥広がりに形成されている。）９に嵌入した際、凹部９の縁部と機械的に係合するためのアンダーカット部を形成するものである。
【００１５】
尚、上記の実施形態では、膨出部７が周方向に連続していて、平面視において円形をなすが、膨出部７は周方向に間隙をおいて複数の円弧状に区画してもよい。また、図示の筒状部８は、断面が中実であるが、筒状部８の底面に、貫通孔５と同芯状で下方へ開口した円形の溝を形成して、筒状部８を、内側筒部と、外側筒部と、両者の上端間に位置する環状の天板部とから構成してもよい。
【００１６】
上記の構成によれば、合成樹脂製雄型嵌合部材１Ａが、円形板部６と筒状部８とから構成されており、従来の合成樹脂製雄型嵌合部材における基板部に相当する部分が存在しないので、合成樹脂製雄型嵌合部材１Ａの厚さが薄くなり、雄スナップＡの厚みを薄くすることができる。
【００１７】
また、リベット部材２Ａの突起３ａを基布Ｃに刺し通して円形板部６の中央貫通孔５に挿入し、突起３ａ先端部を打撃により拡径変形させてカシメ止めし、雄スナップＡを構成した状態において、基布Ｃは、円形板部６とリベット部材頭部３ｂの突起近辺の裏面とで強く挟持されるので、基板部に相当する部分を除去した形状であっても、実用上の支障はない。
【００１８】
図３〜図７は、他の実施の形態を示す。この実施の形態では、合成樹脂製雄型嵌合部材１Ａを、中央にリベット状部材２Ａの突起３ａを挿入するための貫通孔５が形成された円形板部６と、その外周部から上方へ立ち上がり且つ上端外周に膨出部７が形成された筒状部（雌スナップＢの凹部９に嵌入するための筒状部）８とから構成し、前記膨出部７は、周方向に間隙（平面視において半径方向内方へ凹入した凹入部）１１をおいて複数の円弧状に区画された形状にしてある。
【００１９】
そして、筒状部８の底面には、貫通孔５と同芯状で下方へ開口した溝１０を形成し、溝１０には、放射状のリブ１２を設けて、前記筒状部８を、内側筒部８ａと、外側筒部８ｂと、両者８ａ，８ｂの上端間に位置する環状の天板部８ｃと、内側筒部８ａと外側筒部８ｂの間に形成された溝１０を膨出部７の間隙に対応する位置において区画する放射状のリブ１２とを備えた形状としてある。
【００２０】
尚、図示の実施形態では、筒状部８の外側筒部８ｂが膨出部７の位置において半径方向へ弾性変形しやすくなり、僅かな操作力でスナップ作用を行えるように、環状の天板部８ｃに、溝１０と連通するスリット１３を形成してあるが、スリット１３は省略してもよい
。Ｈ₁は、雌スナップＢの凹部９に対する筒状部８の嵌合深さ、Ｈ₂は、筒状部８の底面と円形板部６の底面との間に付けた段差である。
【００２１】
上記の構成によれば、先の実施形態と同様に、合成樹脂製雄型嵌合部材１Ａの厚さが薄くなるので、雄スナップＡの厚みを薄くすることができ、しかも、筒状部８が、内側筒部８ａと、外側筒部８ｂと、両者８ａ，８ｂの上端間に位置する環状の天板部８ｃと、内側筒部８ａと外側筒部８ｂの間に形成された下方へ開口した溝１０を膨出部７の間隙に対応する位置において区画する放射状のリブ１２とを備えた形状であるため、筒状部８の外側筒部８ｂが膨出部７の位置では半径方向に弾性変形しやすくなり、スナップ作用（雌雄スナップの嵌合および嵌合離脱）を良好に行え、それでいて、膨出部７の間隙に対応する位置においては、半径方向への弾性変形がリブ１２によって抑制されるので、外側筒部８ｂの過度の変形が防止されることになり、基布Ｃの厚さに影響されることなく、安定したスナップ作用が可能となる。
【００２２】
【発明の効果】
本発明は、上述した構成よりなり、雌雄のスナップの厚みを薄くすることができる効果がある。
【図面の簡単な説明】
【図１】スナップファスナー用の合成樹脂製雄型嵌合部材の断面図である。
【図２】雄スナップと雌スナップとからなるスナップファスナーの断面図である。
【図３】他の実施の形態を示す合成樹脂製雄型嵌合部材の平面図である。
【図４】合成樹脂製雄型嵌合部材の側面図である。
【図５】合成樹脂製雄型嵌合部材の底面図である。
【図６】図４のＡ−Ａ線断面図である。
【図７】雄スナップと雌スナップとからなるスナップファスナーの断面図である。
【図８】従来例の説明図である。
【符号の説明】
１Ａ…合成樹脂製雄型嵌合部材、２Ａ…リベット状部材、３ａ…突起、５…貫通孔、６…円形板部、７…膨出部、８…筒状部、Ｈ₂…段差。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a synthetic resin male fitting member for a snap fastener.
[0002]
[Prior art]
In general, a synthetic resin male fitting member for a snap fastener has a basic form derived from a basic form of a metal male fitting member. As shown in FIG. A substrate portion a set to a diameter facing the portion, and a cylindrical portion (cylindrical portion for fitting into a female snap recess) c that rises upward from its upper surface and has a bulged portion b formed on the outer periphery of the upper end. And a circular plate portion e in which a through hole d for inserting a protrusion of a rivet-like member is formed at the center. H ₁ is a fitting depth of the cylindrical portion c with respect to the recess of the female snap, H ₂ is a step provided between the bottom surface of the substrate portion a and the bottom surface of the circular plate portion e, and H ₃ is a substrate. It is the thickness of the part a.
[0003]
The level difference H ₂ is obtained by holding the synthetic resin male fitting member in a fixed posture from the male fitting member supply popper of the snap fastener attaching automatic machine to the driving tool for crimping with the rivet member through the chute. When taking out, it is required to distinguish the upper and lower sides of the synthetic resin male fitting member.
[0004]
Therefore, in the conventional synthetic resin male fitting member, at least the thickness of H ₁ + H ₂ + H ₃ is required, and the male snap composed of the synthetic resin male fitting member and the rivet member is required. There was a tendency for the thickness of the to increase.
[0005]
[Problems to be solved by the invention]
In view of the above situation, the present invention is to provide a male fitting member made of a synthetic resin for a snap fastener that can reduce the thickness of a male snap.
[0006]
[Means for Solving the Problems]
In order to solve the above problems, the technical means taken by the present invention are as follows. That is, the synthetic resin male fitting member for a snap fastener according to the present invention has a circular plate portion in which a through hole for inserting a protrusion of a rivet-like member is formed at the center, and rises upward from the outer peripheral portion thereof. A cylindrical portion for fitting into the recess of the female snap formed with a bulging portion on the outer periphery of the upper end, a step is provided between the bottom surface of the cylindrical portion and the bottom surface of the circular plate portion , and the bulging A synthetic resin male fitting member for a snap fastener in which a portion is partitioned into a plurality of arcs with a gap in the circumferential direction, and the cylindrical portion includes an inner cylindrical portion, an outer cylindrical portion, and both And an annular top plate portion positioned between the upper ends of the inner cylindrical portion, and a groove opening downward is formed between the inner cylindrical portion and the outer cylindrical portion .
[0007]
According to said structure, the synthetic resin male fitting member for snap fasteners is comprised from the circular board part and the cylindrical part, and is equivalent to the board | substrate part in the conventional synthetic resin male fitting member. Therefore, the thickness of the male snap fitting member made of the synthetic resin and the rivet member can be reduced.
[0008]
In the state where the male snap is configured, that is, in the state where the protrusion of the rivet member is pierced through the base cloth and inserted into the central through hole of the circular plate portion, and the end of the protrusion is struck and fixed by caulking, Since it is strongly clamped between the circular plate portion and the back surface of the rivet member near the protrusion, there is no practical problem even if the shape corresponding to the substrate portion is removed.
[0009]
Further, since the bulging portion is partitioned into a plurality of arcuately spaced gaps in the circumferential direction, when removing the tubular portion which is fitted into the recess of the female snap, it becomes a negative pressure hardly occurs, snap-action (male and female snap Can be satisfactorily performed).
[0010]
In Koto, tubular section, the inner tubular portion, and the outer tubular section, and an annular top plate portion located between both upper end, opened downwards between the inner tubular section and the outer tubular section since the groove is formed becomes the outer tubular section of the tubular portion is easily elastically deformed radially, so that satisfactorily perform a snap-action (fitting and the fitting disengagement of male and female snap).
[0011]
As in the second aspect of the present invention, the cylindrical portion includes an inner cylindrical portion, an outer cylindrical portion, an annular top plate portion positioned between the upper ends of both, and an inner cylindrical portion and an outer cylindrical portion. If the formed downward opening groove is provided with a radial rib that divides the groove at a position corresponding to the gap of the bulging portion, the outer cylindrical portion of the cylindrical portion is elastically deformed in the radial direction at the position of the bulging portion. However, in the position corresponding to the gap of the bulging portion, the elastic deformation in the radial direction is suppressed by the rib. Therefore, excessive deformation of the outer cylinder portion is prevented, and a stable snap action is possible without being affected by the thickness of the fabric.
[0012]
When the slit which communicates with the groove is formed in the annular top plate portion as in the invention described in claim 3 , the outer cylindrical portion of the cylindrical portion is further increased in the radial direction at the position of the bulging portion. It becomes easy to elastically deform, and a snap action can be performed with a slight operating force.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows an example of a synthetic resin male fitting member 1 according to the present invention, and FIG. 2 shows a snap fastener constructed using the synthetic resin male fitting member 1A. This snap fastener is composed of a male snap A and a female snap B, and the male snap A is a synthetic resin male fitting member 1A and a synthetic material for fastening it to a base fabric (for example, a cloth for clothing) C. The female snap B is composed of a synthetic resin female fitting member 1B and a synthetic resin rivet-shaped member 2B for fastening it to the base cloth C. Yes. 3a and 3b are protrusions of the rivet-like members 2A and 2B, and 4a and 4b are heads of the rivet-like members 2A and 2B.
[0014]
A synthetic resin male fitting member 1A has a circular plate portion 6 in which a through hole 5 for inserting a projection 3a of a rivet-like member 2A is formed in the center, and rises upward from the outer peripheral portion and swells at the outer periphery of the upper end It is comprised from the cylindrical part (cylindrical part for fitting in the recessed part 9 of the female snap B) 8 in which the protrusion part 7 was formed, and a level | step difference between the bottom face of the cylindrical part 8 and the bottom face of the circular board part 6 H ₂ is attached. H ₁ is a fitting depth of the cylindrical portion 8 with respect to the concave portion 9 of the female snap B. The bulging portion 7 has an undercut portion for mechanically engaging with an edge portion of the concave portion 9 when the cylindrical portion 8 is fitted into the concave portion (formed to the back) 9 of the female snap B. To form.
[0015]
In the above embodiment, the bulging portion 7 is continuous in the circumferential direction and is circular in plan view. However, the bulging portion 7 may be partitioned into a plurality of arcs with a gap in the circumferential direction. Good. The illustrated cylindrical portion 8 has a solid cross section, but a circular groove concentric with the through-hole 5 and opened downward is formed on the bottom surface of the cylindrical portion 8 so as to form the cylindrical portion 8. You may comprise from an inner side cylinder part, an outer side cylinder part, and the cyclic | annular top plate part located between both upper ends.
[0016]
According to said structure, 1 A of synthetic resin male type | mold fitting members are comprised from the circular board part 6 and the cylindrical part 8, and are equivalent to the board | substrate part in the conventional synthetic resin male type fitting member. Since there is no portion, the thickness of the synthetic resin male fitting member 1A is reduced, and the thickness of the male snap A can be reduced.
[0017]
Further, the protrusion 3a of the rivet member 2A is pierced through the base cloth C and inserted into the central through hole 5 of the circular plate portion 6, and the protrusion 3a is deformed by striking the diameter to be swaged to form a male snap A. In this state, since the base fabric C is strongly sandwiched between the circular plate portion 6 and the back surface near the protrusion of the rivet member head 3b, even if the shape corresponding to the substrate portion is removed, it is practical. There is no hindrance.
[0018]
3 to 7 show another embodiment. In this embodiment, the synthetic resin male fitting member 1A has a circular plate portion 6 in which a through hole 5 for inserting a projection 3a of a rivet-like member 2A is formed at the center, and an upper portion from the outer peripheral portion thereof. The bulging portion 7 is formed with a cylindrical portion (cylindrical portion for fitting into the concave portion 9 of the female snap B) 8 that rises and has a bulging portion 7 formed on the outer periphery of the upper end. In a plan view, the shape is divided into a plurality of arcs with a recessed portion 11 recessed inward in the radial direction.
[0019]
A groove 10 that is concentric with the through-hole 5 and opens downward is formed on the bottom surface of the tubular portion 8, and a radial rib 12 is provided in the groove 10, so that the tubular portion 8 is disposed on the inner side. A cylindrical portion 8a, an outer cylindrical portion 8b, an annular top plate portion 8c positioned between the upper ends of both the cylindrical portions 8a and 8b, and a groove 10 formed between the inner cylindrical portion 8a and the outer cylindrical portion 8b 7 and a radial rib 12 partitioned at a position corresponding to the gap 7.
[0020]
In the illustrated embodiment, the outer cylindrical portion 8b of the cylindrical portion 8 is easily elastically deformed in the radial direction at the position of the bulging portion 7, so that the snap action can be performed with a slight operating force. A slit 13 communicating with the groove 10 is formed in the portion 8c, but the slit 13 may be omitted. H ₁ is a fitting depth of the cylindrical portion 8 with respect to the recess 9 of the female snap B, and H ₂ is a step provided between the bottom surface of the cylindrical portion 8 and the bottom surface of the circular plate portion 6.
[0021]
According to the above configuration, since the thickness of the synthetic resin male fitting member 1A is reduced as in the previous embodiment, the thickness of the male snap A can be reduced, and the cylindrical portion 8 is further reduced. Has an inner cylinder part 8a, an outer cylinder part 8b, an annular top plate part 8c positioned between the upper ends of the two cylinders 8a and 8b, and a downward opening formed between the inner cylinder part 8a and the outer cylinder part 8b. Since the groove 10 is provided with a radial rib 12 that divides the groove 10 at a position corresponding to the gap of the bulging portion 7, the outer cylindrical portion 8 b of the cylindrical portion 8 is radially formed at the position of the bulging portion 7. It becomes easy to be elastically deformed, and the snap action (mating and unmating of male and female snaps) can be performed satisfactorily, yet elastic deformation in the radial direction is suppressed by the ribs 12 at a position corresponding to the gap of the bulging portion 7. Therefore, excessive deformation of the outer cylindrical portion 8b is prevented. Will, without being affected by the thickness of the base fabric C, thereby enabling stable snap-action.
[0022]
【The invention's effect】
The present invention has the above-described configuration and is effective in reducing the thickness of male and female snaps.
[Brief description of the drawings]
FIG. 1 is a sectional view of a synthetic resin male fitting member for a snap fastener.
FIG. 2 is a cross-sectional view of a snap fastener including a male snap and a female snap.
FIG. 3 is a plan view of a synthetic resin male fitting member showing another embodiment.
FIG. 4 is a side view of a synthetic resin male fitting member.
FIG. 5 is a bottom view of the synthetic resin male fitting member.
6 is a cross-sectional view taken along line AA in FIG.
FIG. 7 is a cross-sectional view of a snap fastener including a male snap and a female snap.
FIG. 8 is an explanatory diagram of a conventional example.
[Explanation of symbols]
1A ... synthetic resin male engaging member, 2A ... rivet-like member, 3a ... projection, 5 ... through hole, 6 ... circular plate portion, 7 ... protruding portion, 8 ... cylindrical portion, H ₂ ... step.

Claims

A circular plate part in which a through-hole for inserting a projection of a rivet-like member is formed in the center, and a female snap recessed part that rises upward from the outer peripheral part and has a bulging part on the outer periphery of the upper end. A snap that is formed of a cylindrical portion, has a step between the bottom surface of the cylindrical portion and the bottom surface of the circular plate portion , and the bulging portion is partitioned into a plurality of arcs with a gap in the circumferential direction A synthetic resin male fitting member for a fastener, wherein the cylindrical portion includes an inner cylindrical portion, an outer cylindrical portion, and an annular top plate portion positioned between the upper ends of the inner cylindrical portion, A synthetic resin male fitting member for a snap fastener, characterized in that a groove opened downward is formed between the outer cylinder portion and the outer cylinder portion .

The cylindrical portion bulges the inner cylindrical portion, the outer cylindrical portion, the annular top plate portion positioned between the upper ends of the inner cylindrical portion, and the downwardly opened groove formed between the inner cylindrical portion and the outer cylindrical portion. The synthetic resin male fitting member for a snap fastener according to claim 1, further comprising radial ribs partitioned at positions corresponding to the gaps between the portions .

The synthetic resin male fitting member for a snap fastener according to claim 2 , wherein a slit communicating with the groove is formed in the annular top plate portion .