JP3905637B2 - Snap fastener - Google Patents

Snap fastener Download PDF

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Publication number
JP3905637B2
JP3905637B2 JP14644298A JP14644298A JP3905637B2 JP 3905637 B2 JP3905637 B2 JP 3905637B2 JP 14644298 A JP14644298 A JP 14644298A JP 14644298 A JP14644298 A JP 14644298A JP 3905637 B2 JP3905637 B2 JP 3905637B2
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Japan
Prior art keywords
sheet
snap
male
female
protrusion
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JP14644298A
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JPH11332614A (en
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精 武田
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武田精機株式会社
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Description

【0001】
【発明の属する技術分野】
本発明は、雌雄のスナップから成る合成樹脂製のスナップファスナーに関する。
【0002】
【従来の技術】
上記スナップファスナーの例えば雄スナップは、図6に示すように、可撓性のシート(例えば、衣服の生地)7に刺し通す突起10を円形基板8の中央部に突出したリベット部材3と、図示しない雌型嵌合部に係止する雄型嵌合部15を円形基板14の中央部に備えた雄型嵌合体4との組み合わせから成り、かつ、前記雄型嵌合体4の円形基板14の中央部には、前記リベット部材3の突起10を貫通させるための貫通孔13を形成している。
【0003】
上記の可撓性シート7に対する雄スナップ1の取り付けに際しては、例えばリベット部材3を固定ダイスにセットし、雄型嵌合体4を昇降ダイスにセットして、リベット部材3の突起10を可撓性のシート7に刺し通すように、雄型嵌合体4を打ち降ろし、実質的にリベット部材3の突起10をシート7の片側から打ち込んで、この突起10を雄型嵌合体4の貫通孔13に挿通させ、かつ、突起10の突出先端部を打撃によりカシメて、突起先端を拡開変形させるのである。
【0004】
これによって、雄スナップ1の円形基板8,14が、その周部と突起10まわりとでシート7を挟着することで、雄スナップ1が可撓性のシート7に取り付けられるのである。
【0005】
図示はしないが、雌スナップも、可撓性のシートに刺し通す突起を円形基板の中央部に突出したリベット部材と、環状基板の中央部に雌型嵌合部を連設した雌型嵌合体との組み合わせから成り、かつ、雌型嵌合部の底壁中央部には、突起挿通用の貫通孔が形成されていて、上記した雄スナップと同様の手段でシートに取り付けられるようになっている。
【0006】
【発明が解決しようとする課題】
ところで、上記シートに取り付けられたスナップは、これに何らかの拍子で回転力が加わった際に、突起まわりで簡単に回転してしまうことがあり、例えば衣服のデザインやファッション性をアップさせることを意図して、スナップ表面に装飾を施した場合、その装飾に意図した方向性を維持させたいにも拘らず、スナップが回転してしまうことで見栄えが悪くなり、却って衣服のデザイン性やファッション性を損なうことがあった。
【0007】
また、雌雄のスナップを嵌合させた状態で、このスナップを取り付けたシートを引き離すように引っ張った際には、スナップがシートの面方向に位置ずれすることもあった。
【0008】
本発明者は、この原因について追求したところ、スナップによるシートの挟着力が、スナップの周部と中央部とでは大きく異なっていることを知るに至ったのである。
【0009】
即ち、前記シート7に対する雄スナップ1の取り付けに際して、前記貫通孔13に対する突起10の挿通状況について考察したところ、シート(生地)7によっては、突起10がシート7を貫通する際、突起10によってシート7の一部が切り取られて貫通孔13外に押し出されるケースと、突起10がシート7の繊維間隙を押し拡げるようにしてシート7を貫通するケースとがあり、後者の場合、図5に示すように、突起10によって押し拡げられたシート7が緻密になりながら、突起10まわりで厚みを増すように膨らみ変形し、突起先端をカシメた際には、図6に示すように、円形基板8,14による突起10まわりのシート部分7aが、円形基板8,14の周部によるシート部分7bに比べて、膨らみ変形した分、強く押し潰されて、シート部分7aの挟着力が非常に強くなり、スナップの周部と中央部とでは、シート挟着力がアンバランスになっていることを知見したのである。
【0010】
このように、スナップ周部でのシートの挟着力が弱いと、スナップ中央部でのシート挟着力が幾ら強くても、スナップ周部に回転力が加わった際には、これが軽い回転力であっても回転モーメントが大きくなることから、スナップが簡単に回転してしまうことが判明したのである。
【0011】
また、スナップ周部でのシートの挟着力が弱いことから、雌雄のスナップを嵌合させた状態で、シート7を面方向に引っ張った際には、引っ張り側のシート部分7bが円形基板8,14の周部から引き抜けるようになり、この結果、スナップがシートの面方向に位置ずれすることが判明したのである。
【0012】
本発明は、かゝる実情に鑑みて成されたものであって、極めて簡単な改良技術によって、シートをスナップの周部と中央部とでバランスよく挟着できるようにし、上記の不都合を解消することを目的としている。
【0013】
【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、本発明では、上記したスナップファスナーの雌雄のスナップにおいて、前記リベット部材の突起の突出基部まわりの面部と、前記雌雄の嵌合体の突起基部まわりに相対峙する面部の少なくとも一方に、突起によって押し拡げられたシートが入り込む環状の凹溝を形成した点に特徴がある。
【0014】
上記の構成によれば、可撓性のシートに対するスナップの取り付けに際して、突起の先端がカシメられる前に、この突起の刺し通しによって押し拡げられて緻密に膨らみ変形したシート部分が、環状の凹溝に入り込むことから、シートがスナップの中央部で局部的に強く挟着されなくなり、シートはスナップの周部と中央部とでバランス良く挟着されることになる。
【0015】
従って、スナップ周部でのシート挟着力が強くなることから、強い回転力が加わっても、スナップは簡単には回転しなくなり、かつ、スナップ周部からのシートの引き抜けも生じ難くなることで、位置ずれも生じ難くなるのである。
【0016】
【発明の実施の形態】
以下、本発明の実施の形態を図面に基づいて説明する。図1は雄スナップ1と雌スナップ2との組み合わせによるスナップファスナーを示し、これら雌雄のスナップ1,2は、例えばポリアセタールなどの合成樹脂によって射出成形されるもので、図2にも示すように、雄スナップ1は、リベット部材3と雄型嵌合体4とから成り、雌スナップ2は、リベット部材5と雌型嵌合体6とから成り、それぞれ可撓性のシート(例えば衣服の生地)7に取り付けられる。
【0017】
前記リベット部材3,5のそれぞれは、周縁の外肩部が丸みを帯びた皿状円形基板8,9のシート7側の中央部に、打撃によって先端部が拡径変形される断面円形の尖鋭な突起10,11を突出させ、この突起10,11の突出基部まわりの面部に環状凹溝12を形成して成る。
【0018】
また、前記雄型嵌合体4は、前記リベット部材3の突起10を挿通させる貫通孔13を、皿状の円形基板14の中央部に形成すると共に、この円形基板14の雌スナップ側(可撓性のシート7とは反対側)に、筒状の雄型嵌合部15を、前記貫通孔13と同芯状に連設し、かつ、この雄型嵌合部15の端部外面に、雄型係止部aを膨出させると共に、前記円形基板14のシート側の面部に、放射状のリブbとスパイクcとを突出させて成る。
【0019】
一方、前記雌型嵌合体6は、透孔dが形成された環状基板16の周縁部に、シート挟着用の周壁17を連設すると共に、この環状基板16の中央部に、シート7側に凹入する遊底筒状の雌型嵌合部18を連設し、かつ、この雌型嵌合部18の端部内面に、前記雄型嵌合部15の係止部aを係止させる複数個の***部eを膨出させる一方、雌型嵌合部18の底壁18aの中央部に、前記リベット部材5の突起11を挿入する貫通孔19を形成し、更に、前記底壁18aの周部にスパイクfを突出させると共に、前記環状基板16と周壁17および雌型嵌合部18の三者にわたっても補強用のリブhを放射状に設けて成る。
【0020】
これら雌雄のスナップ1,2の何れにおいても、前記リベット部材3,5の突起10,11を可撓性のシート7の片側から打ち込んで、突起10,11をシート7に刺し通し、かつ、この突起10,11を雌雄の嵌合体4,6の貫通孔13,19に挿通させて、突起先端を拡開変形させるように、この突起10,11の突出先端部を打撃によりカシメるのである。
【0021】
これによって、雄スナップ1にあっては、それの円形基板8,14が、その周部と突起10まわりとでシート7を挟着することで、この雄スナップ1が可撓性のシート7に取り付けられるのであり、雌スナップ2にあっては、それの円形基板9の周部と周壁17とがシート7を挟着し、かつ、前記円形基板9と雌型嵌合部18の底壁18aとが、突起11まわりでシート7を挟着することで、この雌スナップ2が可撓性のシート7に取り付けられるのである。
【0022】
ここで、可撓性シート7に対する雌雄のスナップ1,2の取り付けに際して、可撓性シート7の種類によっては、前記突起10,11が可撓性のシート7に刺し通された際、突起10,11まわりのシート部分が膨らみ変形し、スナップ周部と中央部とでは、シート挟着力がアンバランスになって、シート挟着力がスナップ周部で弱くなることがあり、そのために、スナップが回転したり位置ずれしたりすることは既述した通りである。
【0023】
しかし、本発明では、前記リベット部材3,5のそれぞれにおいて、それの突起10,11の突出基部まわりの面部に環状凹溝12を形成して、上記の膨らみ変形したシート部分を、この環状凹溝12に入り込ませるようにしているので、スナップ1,2の周部と中央部とにおいて、シート7をバランス良く挟着することができる。
【0024】
従って、スナップ周部でのシート挟着力が強くなることから、強い回転力が加わっても、スナップ1,2は簡単には回転しなくなり、かつ、スナップ周部からのシート7の引き抜けも生じ難くなることで、スナップ1,2の位置ずれも確実に防止されることになる。
【0025】
尚、上記の実施の形態では、環状凹溝12をリベット部材3,5に形成しているが、図3に示すように、雌雄の嵌合体4,6に対して、それの突起基部まわりに相対峙する面部に環状凹溝12を形成して、上記の膨らみ変形したシート部分を、この環状凹溝12に入り込ませるようにしてもよいのであり、この際、図示はしないが、一方の例えば雄スナップ1のリベット部材3と、他方の雌スナップ2の雌型嵌合体6とに、環状凹溝12を形成してもよいのである。
【0026】
また、図4に示すように、雌雄のスナップ1,2のそれぞれにおいて、リベット部材3,5の突起10,11の突出基部まわりの面部と、雌雄の嵌合体4,6の突起基部まわりに相対峙する面部の両者に、環状凹溝12,12を浅く形成して、膨らみ変形したシート部分を、この環状凹溝12,12に半分ずつ入り込ませるようにしてもよいのである。
【0027】
【発明の効果】
以上説明したように本発明は、可撓性のシートに対する突起の刺し通しによって、この突起まわりのシート部分が膨らみ変形し、この膨らみ変形したシート部分を挟着することが、スナップ周部でのシート挟着力を弱くしている点に着目して成されたものであって、リベット部材と雌雄の嵌合体の少なくとも一方に環状凹溝を形成して、この環状凹溝に上記のシート部分を入り込ませることで、シー
トをスナップ周部と中央部とでバランス良く挟着できるようにしたのであり、延いては、スナップ周部でのシート挟着力を強くできるようにしたのである。
【0028】
これによってスナップは、強い回転力が加わっても簡単には回転しなくなり、かつ、スナップ周部からのシートの引き抜けも生じ難くなることから、位置ずれも生じ難くなり、特に、スナップ表面に装飾を施した場合、その装飾に意図した方向性を維持させ得ることから見栄えが良くなり、衣服のデザイン性やファッション性をアップさせることができる。
【図面の簡単な説明】
【図1】 雌雄のスナップによるスナップファスナーの断面図である。
【図2】 突起先端部をカシメる前の雌雄のスナップの断面図である。
【図3】 別の実施の形態によるスナップファスナーの断面図である。
【図4】 更に別の実施の形態によるスナップファスナーの断面図である。
【図5】 従来例の雄スナップの可撓性シートに対する突起の挿通状況を示す断面図である。
【図6】 従来例の雄スナップの断面図である。
【符号の説明】
1…雄スナップ、2…雌スナップ、3,5…リベット部材、4…雄型嵌合体、6…雌型嵌合体、7…可撓性のシート、8,9…リベット部材の円形基板、10,11…突起、12…環状凹溝、13,19…貫通孔、14…雄型嵌合体の円形基板、15…雄型嵌合部、16…環状基板、18…雌型嵌合部。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a synthetic resin snap fastener made of male and female snaps.
[0002]
[Prior art]
For example, the male snap of the above-mentioned snap fastener includes a rivet member 3 in which a protrusion 10 that pierces a flexible sheet (for example, cloth for clothing) 7 protrudes from the central portion of the circular substrate 8, as shown in FIG. The male fitting portion 15 that is engaged with the female fitting portion that is not formed is composed of a combination with the male fitting member 4 provided at the center of the circular substrate 14, and the circular fitting 14 of the male fitting member 4 A through hole 13 for penetrating the protrusion 10 of the rivet member 3 is formed in the central portion.
[0003]
When attaching the male snap 1 to the flexible sheet 7, for example, the rivet member 3 is set on a fixed die, the male fitting body 4 is set on a lifting die, and the protrusion 10 of the rivet member 3 is flexible. The male fitting body 4 is lowered so as to pierce the sheet 7, the protrusion 10 of the rivet member 3 is substantially driven from one side of the sheet 7, and the protrusion 10 is inserted into the through hole 13 of the male fitting body 4. The protrusion tip of the protrusion 10 is squeezed by striking and the protrusion tip is expanded and deformed.
[0004]
Thus, the male snap 1 is attached to the flexible sheet 7 by the circular substrates 8 and 14 of the male snap 1 sandwiching the sheet 7 between its peripheral portion and the periphery of the protrusion 10.
[0005]
Although not shown, the female snap is also a female fitting body in which a protrusion that pierces the flexible sheet protrudes from the central portion of the circular substrate, and a female fitting portion that is connected to the central portion of the annular substrate. And a through hole for inserting a protrusion is formed in the center of the bottom wall of the female fitting portion, and can be attached to the seat by the same means as the male snap described above. Yes.
[0006]
[Problems to be solved by the invention]
By the way, the snap attached to the above-mentioned seat may be easily rotated around the protrusion when a rotational force is applied to it with some time signature. For example, it is intended to improve the design and fashionability of clothes. If the decoration is applied to the surface of the snap, it will not look good due to rotation of the snap even though you want to maintain the intended direction of the decoration. There was a loss.
[0007]
In addition, when the male and female snaps are fitted to each other and the sheet with the snaps attached is pulled apart, the snaps may be displaced in the sheet surface direction.
[0008]
As a result of pursuing this cause, the present inventor has come to know that the sheet clamping force by the snap is greatly different between the peripheral portion and the central portion of the snap.
[0009]
That is, when the male snap 1 is attached to the sheet 7, the insertion state of the protrusion 10 into the through hole 13 is considered. Depending on the sheet (fabric) 7, when the protrusion 10 penetrates the sheet 7, the protrusion 10 7 is cut out and pushed out of the through-hole 13, and there are cases where the protrusion 10 penetrates the sheet 7 so as to expand the fiber gap of the sheet 7, and the latter case is shown in FIG. Thus, when the sheet 7 pushed and expanded by the protrusions 10 becomes dense and swells and deforms so as to increase the thickness around the protrusions 10 and the protrusion tips are crimped, as shown in FIG. , 14 and the sheet portion 7a around the protrusion 10 is swelled and deformed more strongly than the sheet portion 7b formed by the peripheral portions of the circular substrates 8, 14, and is strongly crushed. Clamping force of the seat portion 7a becomes very strong, and the peripheral portion and the central portion of the snap is the sheet clamping force is finding that it is unbalanced.
[0010]
Thus, if the sheet clamping force at the snap periphery is weak, even if the sheet clamping force at the snap center is somewhat strong, this is a light torque when a rotational force is applied to the snap periphery. However, it became clear that the snap would easily rotate because the rotational moment increased.
[0011]
Further, since the clamping force of the sheet at the snap peripheral portion is weak, when the sheet 7 is pulled in the surface direction with the male and female snaps fitted, the pull-side sheet portion 7b becomes the circular substrate 8, As a result, it has been found that the snap is displaced in the sheet surface direction.
[0012]
The present invention has been made in view of such circumstances, and enables the sheet to be clamped in a balanced manner between the peripheral portion and the central portion of the snap by an extremely simple improvement technique, thereby eliminating the above disadvantages. The purpose is to do.
[0013]
[Means for Solving the Problems]
In order to solve the above-described problems, in the present invention, in the male and female snaps of the snap fastener described above, the surface portion around the protruding base portion of the protrusion of the rivet member and the surface portion facing the periphery of the protruding base portion of the fitting body of the male and female At least one of the above is characterized in that an annular concave groove into which the sheet pushed and expanded by the protrusion enters is formed.
[0014]
According to the above configuration, when the snap attachment of the relative flexibility of the sheet, before the tip of the projection is caulked, dense bulge deformed sheet portion pushed open by the piercing of the projection, an annular groove Therefore, the sheet is not strongly pinched locally at the central portion of the snap, and the sheet is pinched with good balance between the peripheral portion and the central portion of the snap.
[0015]
Therefore, since the sheet clamping force at the snap peripheral part becomes strong, even if a strong rotational force is applied, the snap does not easily rotate, and the sheet does not easily pull out from the snap peripheral part. Therefore, it is difficult for positional deviation to occur.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a snap fastener by a combination of a male snap 1 and a female snap 2. These male and female snaps 1, 2 are injection-molded by a synthetic resin such as polyacetal, for example, as shown in FIG. The male snap 1 is composed of a rivet member 3 and a male fitting body 4, and the female snap 2 is composed of a rivet member 5 and a female fitting body 6, each of which is formed on a flexible sheet (for example, a cloth for clothing) 7. It is attached.
[0017]
Each of the rivet members 3 and 5 has a sharp point with a circular cross section whose tip is enlarged and deformed by striking the central portion on the sheet 7 side of the dish-like circular substrates 8 and 9 whose outer shoulders are rounded at the periphery. The projections 10 and 11 are projected, and an annular groove 12 is formed on the surface of the projections 10 and 11 around the protruding base.
[0018]
The male fitting body 4 has a through-hole 13 through which the projection 10 of the rivet member 3 is inserted in the center of the dish-like circular substrate 14 and the female snap side (flexible) of the circular substrate 14. The cylindrical male fitting portion 15 is connected to the through hole 13 in a concentric manner on the opposite side of the conductive sheet 7, and on the outer surface of the end of the male fitting portion 15. The male locking portion a is bulged, and radial ribs b and spikes c are projected from the sheet side surface of the circular substrate 14.
[0019]
On the other hand, the female fitting body 6 is provided with a peripheral wall 17 for sandwiching a sheet at the peripheral portion of the annular substrate 16 in which the through holes d are formed, and at the center of the annular substrate 16 on the seat 7 side. A plurality of concave bottom cylindrical female fitting portions 18 are provided in series, and a locking portion a of the male fitting portion 15 is locked to an inner surface of an end portion of the female fitting portion 18. While the protruding portions e are bulged, a through hole 19 for inserting the projection 11 of the rivet member 5 is formed in the center of the bottom wall 18a of the female fitting portion 18, and further, the bottom wall 18a The spike f is protruded from the peripheral portion, and reinforcing ribs h are provided radially over the three parts of the annular substrate 16, the peripheral wall 17, and the female fitting portion 18.
[0020]
In either of the male and female snaps 1 and 2, the protrusions 10 and 11 of the rivet members 3 and 5 are driven from one side of the flexible sheet 7, the protrusions 10 and 11 are pierced into the sheet 7, and this The protrusions 10 and 11 are squeezed by striking the protrusions 10 and 11 so that the protrusions 10 and 11 are inserted into the through holes 13 and 19 of the male and female fittings 4 and 6 and the protrusions are expanded and deformed.
[0021]
As a result, in the male snap 1, the circular substrates 8 and 14 of the male snap 1 sandwich the sheet 7 between the peripheral portion and the protrusion 10 so that the male snap 1 is attached to the flexible sheet 7. In the female snap 2, the peripheral portion of the circular substrate 9 and the peripheral wall 17 sandwich the sheet 7, and the bottom wall 18 a of the circular substrate 9 and the female fitting portion 18. The female snap 2 is attached to the flexible sheet 7 by sandwiching the sheet 7 around the protrusion 11.
[0022]
Here, when the male and female snaps 1 and 2 are attached to the flexible sheet 7, depending on the type of the flexible sheet 7, when the protrusions 10 and 11 are inserted into the flexible sheet 7, the protrusion 10 The sheet portion around 11 swells and deforms, and the sheet clamping force may become unbalanced at the snap peripheral part and the central part, and the sheet clamping force may be weakened at the snap peripheral part, so that the snap rotates. As described above, the position and the position shift.
[0023]
However, in the present invention, in each of the rivet members 3 and 5, an annular groove 12 is formed in the surface around the protruding base of the projections 10 and 11, and the bulging and deformed sheet portion is formed into the annular recess. Since the groove 12 is made to enter, the sheet 7 can be sandwiched between the peripheral portion and the central portion of the snaps 1 and 2 in a balanced manner.
[0024]
Therefore, since the sheet clamping force at the snap peripheral portion becomes strong, even if a strong rotational force is applied, the snaps 1 and 2 do not easily rotate, and the sheet 7 is pulled out from the snap peripheral portion. Since it becomes difficult, the position shift of the snaps 1 and 2 is surely prevented.
[0025]
In the above embodiment, the annular groove 12 is formed in the rivet members 3 and 5, but as shown in FIG. An annular groove 12 may be formed on the surface portion facing each other, and the bulging and deformed sheet portion may be inserted into the annular groove 12. An annular groove 12 may be formed in the rivet member 3 of the male snap 1 and the female fitting body 6 of the other female snap 2.
[0026]
In addition, as shown in FIG. 4, in each of the male and female snaps 1 and 2, the surface portions around the protruding bases of the projections 10 and 11 of the rivet members 3 and 5 and the protruding bases of the fitting bodies 4 and 6 of the male and female are aligned. Alternatively, the annular concave grooves 12 and 12 may be shallowly formed on both opposing surface portions, and the bulging and deformed sheet portion may be half inserted into the annular concave grooves 12 and 12.
[0027]
【The invention's effect】
As described above, according to the present invention, it is possible to swell and deform the sheet portion around the protrusion by the piercing of the protrusion to the flexible sheet, and to sandwich the bulged and deformed sheet portion. It is made by paying attention to the point that the sheet clamping force is weakened, and an annular groove is formed in at least one of the rivet member and the male / female fitting body, and the above-mentioned sheet portion is formed in the annular groove. By inserting the sheet, the sheet can be clamped between the snap peripheral part and the central part with good balance, and as a result, the sheet clamping force at the snap peripheral part can be increased.
[0028]
As a result, the snap does not rotate easily even when a strong rotational force is applied, and it is difficult for the sheet to be pulled out from the periphery of the snap. When it is applied, it is possible to maintain the intended direction of the decoration, so that the appearance is improved, and the design and fashionability of the clothes can be improved.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a snap fastener with male and female snaps.
FIG. 2 is a cross-sectional view of the male and female snaps before crimping the protrusion tip.
FIG. 3 is a cross-sectional view of a snap fastener according to another embodiment.
FIG. 4 is a cross-sectional view of a snap fastener according to still another embodiment.
FIG. 5 is a cross-sectional view showing how a protrusion is inserted into a flexible sheet of a male snap of a conventional example.
FIG. 6 is a cross-sectional view of a conventional male snap.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Male snap, 2 ... Female snap, 3, 5 ... Rivet member, 4 ... Male type fitting body, 6 ... Female type fitting body, 7 ... Flexible sheet | seat, 8, 9 ... Circular substrate of rivet member, 10 , 11 ... projection, 12 ... annular groove, 13, 19 ... through hole, 14 ... circular substrate of male fitting body, 15 ... male fitting portion, 16 ... annular substrate, 18 ... female fitting portion.

Claims (1)

可撓性のシートに刺し通す断面円形の先鋭な突起を円形基板の中央部に突出した合成樹脂製のリベット部材と、雌型嵌合部を環状基板の中央部に備えた合成樹脂製の雌型嵌合体とによる雌スナップと、可撓性のシートに刺し通す断面円形の先鋭な突起を円形基板の中央部に突出した合成樹脂製のリベット部材と、前記雌型嵌合部に係止する雄型嵌合部を円形基板の中央部に備えた合成樹脂製の雄型嵌合体とによる雄スナップとから成り、かつ、前記雌雄の嵌合体の中央部に、前記シートに刺し通した突起を貫通させてカシメ止めするための貫通孔を形成する一方、前記リベット部材の突起の突出基部まわりの面部と、前記雌雄の嵌合体の突起基部まわりに相対峙する面部の少なくとも一方に、突起によって押し拡げられたシートが入り込む環状の凹溝を形成して成ることを特徴とするスナップファスナー。The circular cross section of the pointed projection piercing the flexible sheet and the rivet member made of a synthetic resin that protrudes in the center of the circular substrate, the female a female fitting portion of the synthetic resin with the center of the annular substrate A female snap by a mold fitting body, a synthetic resin rivet member protruding from a central portion of a circular substrate with a sharp projection having a circular cross section penetrating a flexible sheet, and locked to the female mold fitting portion A male snap formed by a male fitting made of a synthetic resin having a male fitting portion at the center of a circular substrate, and a protrusion pierced through the sheet at the center of the fitting body of the male and female While forming a through-hole for penetrating and crimping, at least one of the surface portion around the protruding base portion of the protrusion of the rivet member and the surface portion facing the protrusion base portion of the fitting body of the male and female is pushed by the protrusion. ring that spread the sheet-enters Snap fasteners, characterized in that formed by the groove formation.
JP14644298A 1998-05-28 1998-05-28 Snap fastener Expired - Fee Related JP3905637B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14644298A JP3905637B2 (en) 1998-05-28 1998-05-28 Snap fastener

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14644298A JP3905637B2 (en) 1998-05-28 1998-05-28 Snap fastener

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Publication Number Publication Date
JPH11332614A JPH11332614A (en) 1999-12-07
JP3905637B2 true JP3905637B2 (en) 2007-04-18

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JP14644298A Expired - Fee Related JP3905637B2 (en) 1998-05-28 1998-05-28 Snap fastener

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Country Link
JP (1) JP3905637B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4725738B2 (en) * 2006-12-12 2011-07-13 武田精機株式会社 Plastic snap fastener
WO2012066639A1 (en) * 2010-11-16 2012-05-24 Ykk株式会社 Button production method and male snap button

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