JP3616137B2

JP3616137B2 - Snap button structure

Info

Publication number: JP3616137B2
Application number: JP18684994A
Authority: JP
Inventors: 建二長谷川
Original assignee: YKK Snap Fasteners Japan Co Ltd
Current assignee: YKK Snap Fasteners Japan Co Ltd
Priority date: 1994-07-18
Filing date: 1994-07-18
Publication date: 2005-02-02
Anticipated expiration: 2020-02-02
Also published as: JPH0824011A

Description

【０００１】
【産業上の利用分野】
本発明はスナップ釦の構造、特に雌釦部材の構造に関する。
【０００２】
【従来技術】
従来から、図３及び４に示されるような、雌釦部材（１０）が使用されている。この形式の雌釦部材（１０）はその内孔（１２）の上部開口（１４）に隣り合って且つ開口の直径方向に対向する位置に２本のばね部材（１６）を配設し、その一部分を、内孔（１２）の円周方向に沿って設けた四角形状の切欠き（１８）を通して内孔（１２）の内部に露呈させている。
しかしながら、この形式の雌釦部材では、雄釦部材（図示せず）との弾発係合に際し各ばね部材（１６）は先ず、雄釦部材のスタッドにより切欠きの短辺に沿ってその下方長辺に当接するまで垂直に押し下げられ、次いでこの下方の長辺に沿って水平方向に相互に押し広げられるという２段の動作を経ることになるのでスナップ係合時のアクションが強くなってしまう。
一方、図５に示すように、この雌釦部材（１０）に生地（２０）を挟んでアイレット（２２）を合着しようとする場合には、上型２４を内孔（１２）に挿通する必要がある。しかしながら上記２段の動作を示すばね部材をうまくかわさないとばね部材そのものを損傷する恐れがあるために、上型の先端部付近にくびれ部（２６）を設ける等の工夫をする必要があった。
【０００３】
【発明が解決しようとする課題】
スナップ係合時のアクションの小さい雌部材を提供することであり、ばね部材をかわすための工夫を上型に特に設ける必要のない雌部材を提供することである。
【０００４】
【課題を解決するための手段】
本発明に従えば、弾発係合用の２本の平行ばね部材（１００）をその内孔（２００）の上部開口（３００）に隣り合い且つ上部開口の直径方向に対向する位置に配設し、内孔（２００）の円周方向に沿って形成した２か所の細長四角形状の切欠き（４００）にして、上方の長辺（４２０）、下方の長辺（４１０）、相対する短辺（６００、６００）より成る細長四角形状の切欠き（４００）の夫々を通し各ばね部材の一部を内孔の内部に露呈させてなる形式の雌釦部材（５００）であって、
各切欠き部分の、前記上方の長辺（４２０）及び下方の長辺（４１０）と共に前記細長四角形状を成す状態において相対する短辺（６００、６００）どうしを、該各短辺が内孔（２００）の下方に向かうに従い、前記細長四角形状が水平方向から見て逆台形形状を呈するように相互に接近するよう傾斜付けしたことを特徴とする雌釦部材が提供される。
【０００５】
【実施例】
図１及び２を参照して本発明を詳しく説明する。図１には本願発明のスナップ釦の雌部材（５００）の断面図が示される。雌部材（５００）は従来製品と同様に、内孔（２００）の上部開口（３００）に連続する部分が所定の半径方向距離外側に伸延され、次いで折り返されてなるフランジ（２１０）を有し、このフランジ（２１０）の内部には図４に示した従来例に使用されると同様の２本のばね部材（１００）が平行に配設されている。一方、内孔（２００）の円周方向に沿った２か所には従来製品と同様に細長四角形（水平方向から見た場合に）の切欠き（４００）が形成され、この切欠き（４００）の夫々を通して各ばね部材の一部が内孔の内部に露呈される。これらのばね部材（１００）は、上部開口（３００）の直径方向に対向して位置決めされ、図２にその一部分を示す雄部材のスタッド（７００）と弾発係合する。
【０００６】
各前記切欠き（４００）の相対する短辺（６００）は図２に最も良く示すように、内孔（２００）の下方に向かうに従い相互に接近するよう傾斜付けされる。これにより切欠き（４００）は、仮にこれを水平方向から見た場合には逆台形形状を呈することになる。各ばね部材（１００）は従来と同様、切欠き（４００）の各長辺（４１０）及び（４２０）間の垂直方向距離よりも若干小さい断面直径寸法を有し且つ雄部材のスタッド（７００）の最大直径寸法よりも若干小さい距離相互に水平方向に離間する状態で平行に位置付けされる。
【０００７】
スナップ作動に際し、図２に示すように雄部材のスタッド（７００）を雌部材（５００）の内孔（２００）に挿通すると、各ばね部材はスタッド（７００）と当接し、引き続きスタッド（７００）を内孔に押し込むに従い切欠き（４００）の各短辺（６００）に沿って下方に移動する。従来製品では先に説明した如く、この後、ばね部材が切欠きの下方の長辺（４１０）に当接した後に横方向に押し広げられるという２段動作となるが、本願発明に於ては細長四角形状の切欠き（４００）の相対する短辺（６００）に前述の如き傾斜を付けたことにより各ばね部材の動作形態は、先ずスタッド（７００）の押圧力により押し下げられつつ、短辺（６００）に沿って徐々に横方向に押し広げられ、次いでスタッドの最大直径部分を越えた瞬間に上方の長辺（４２０）に弾発的に戻ると言うスムーズなものとなり、そうした２段動作の発生が回避される。
【０００８】
【発明の効果】
１）スナップ係合時のアクションの小さい雌釦部材が提供される。
２）スナップ釦の脱係合に際しての抵抗力が強くなり、外力等による不測の外れに対する抵抗力が高められる。更には、
３）切欠の短辺に傾斜を付けることで、従来の、ばね部材が上方からの押し込み力によって垂直に押し下げられ、切欠の短辺に沿って移動した後、切欠の下方長辺に衝突するという動作が無くなることにより、特に、アイレット合着工程に際してのばね部材そのものの、上型による損傷の恐れが低減される。
４）切り欠きの短辺に傾斜を付けることで、ばね部材が上方からの押し込み力によって自然に横方向に広がるようにしたことから、雌釦部材へのアイレット取付に際し雌釦部材の内孔に挿通する上型に、ばね部材ををかわすための工夫を特に設ける必要が無くなることである。
【図面の簡単な説明】
【図１】本発明に従う雌部材の断面図である。
【図２】本発明に従う雌部材のばね部材の、スタッド部材の垂直方向移動に伴う移動状況を矢印で例示する部分拡大断面図である。
【図３】従来製品の断面図である。
【図４】図３の従来製品の、平行ばね部材を仮想線で示してなる平面図である。
【図５】従来の雌釦部材を生地を挟んでアイレット部材と合着する様子を例示する断面図である。
【符号の説明】
１００ばね部材
２００内孔
２１０フランジ
３００上部開口
４００切欠き
５００雌部材
６００短辺
７００スタッド[0001]
[Industrial application fields]
The present invention relates to a snap button structure, and more particularly to a female button member structure.
[0002]
[Prior art]
Conventionally, a female button member (10) as shown in FIGS. 3 and 4 has been used. This type of female button member (10) is provided with two spring members (16) at positions adjacent to the upper opening (14) of the inner hole (12) and facing the diametrical direction of the opening. A part is exposed to the inside of the inner hole (12) through a rectangular notch (18) provided along the circumferential direction of the inner hole (12).
However, in this type of female button member, each spring member (16) is first moved downward along the short side of the notch by the stud of the male button member in the elastic engagement with the male button member (not shown). The action of snap engagement becomes stronger because it is pushed down vertically until it comes into contact with the long side and then spreads along the lower long side in the horizontal direction. .
On the other hand, as shown in FIG. 5, when the eyelet (22) is to be fitted to the female button member (10) with the fabric (20) sandwiched, the upper mold 24 is inserted into the inner hole (12). There is a need. However, since the spring member itself may be damaged if the spring member showing the two-stage operation is not properly replaced, it has been necessary to devise measures such as providing a constricted portion (26) near the tip of the upper mold. .
[0003]
[Problems to be solved by the invention]
It is to provide a female member having a small action at the time of snap engagement, and to provide a female member that does not need to provide a device for dodging the spring member in the upper mold.
[0004]
[Means for Solving the Problems]
According to the present invention, the two parallel spring members (100) for elastic engagement are disposed at positions adjacent to the upper opening (300) of the inner hole (200) and opposed to the diameter direction of the upper opening. The two long rectangular cutouts (400) formed along the circumferential direction of the inner hole (200) , the upper long side (420), the lower long side (410), the opposing short A female button member (500) of a type in which a part of each spring member is exposed to the inside of the inner hole through each of the elongated rectangular cutouts (400) consisting of sides (600, 600) ,
The short sides (600 , 600) facing each other in the state of forming the elongated rectangular shape together with the upper long side (420) and the lower long side (410) of each notch portion, each short side is an inner hole. A female button member is provided in which the elongated rectangular shape is inclined so as to approach each other so as to have an inverted trapezoidal shape when viewed from the horizontal direction as it goes downward (200) .
[0005]
【Example】
The present invention will be described in detail with reference to FIGS. FIG. 1 shows a cross-sectional view of the female member (500) of the snap button of the present invention. Similar to the conventional product, the female member (500) has a flange (210) in which a portion of the inner hole (200) continuous with the upper opening (300) is extended outward by a predetermined radial distance and then folded back. In the flange (210), two spring members (100) similar to those used in the conventional example shown in FIG. 4 are arranged in parallel. On the other hand, an elongated rectangular (when viewed from the horizontal direction) notch (400) is formed at two locations along the circumferential direction of the inner hole (200), and this notch (400 ), A part of each spring member is exposed inside the inner hole. These spring members (100) are positioned diametrically opposite the upper opening (300) and resiliently engage a male stud (700), a portion of which is shown in FIG.
[0006]
The opposing short sides (600) of each notch (400) are beveled closer to each other as they go down the inner bore (200), as best shown in FIG. Thus, the notch (400) assumes an inverted trapezoidal shape when viewed from the horizontal direction. Each spring member (100) has a cross-sectional diameter dimension that is slightly smaller than the vertical distance between the respective long sides (410) and (420) of the notch (400) and is a male stud (700), as is conventional. Are positioned parallel to each other with a distance slightly smaller than the maximum diameter dimension thereof being horizontally spaced from each other.
[0007]
In the snap operation, as shown in FIG. 2, when the male stud (700) is inserted into the inner hole (200) of the female member (500), each spring member comes into contact with the stud (700) and continues to the stud (700). Is pushed downward along each short side (600) of the notch (400). In the conventional product, as described above, after this, the spring member becomes a two-stage operation in which the spring member is pushed laterally after contacting the long side (410) below the notch, but in the present invention, By attaching the slopes as described above to the opposing short sides (600) of the elongated rectangular cutout (400), the operation form of each spring member is first pushed down by the pressing force of the stud (700), while the short sides (600) is gradually spread laterally along, and then smoothly returns to the upper long side (420) at the moment when the maximum diameter portion of the stud is exceeded, such a two-stage operation. Is avoided.
[0008]
【The invention's effect】
1) Small female button member of actions during the snap engagement is provided.
2) The resistance force when the snap button is disengaged is increased, and the resistance force against unexpected disconnection due to an external force or the like is increased. Furthermore,
3) By inclining the short side of the notch, the conventional spring member is pushed down vertically by the pushing force from above , moves along the short side of the notch, and then collides with the lower long side of the notch. By eliminating the operation, the risk of damage by the upper die of the spring member itself during the eyelet attaching process is reduced.
4) By beveled the short side of the cutout which, since the spring member is to spread laterally naturally by pushing force from above, the inner hole of the female button member upon eyelet attached to the female button member It is not necessary to provide a device for dodging the spring member in the upper mold to be inserted.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a female member according to the present invention.
FIG. 2 is a partially enlarged cross-sectional view illustrating, with arrows, the movement of the spring member of the female member according to the present invention as the stud member moves in the vertical direction.
FIG. 3 is a cross-sectional view of a conventional product.
4 is a plan view showing the parallel spring member of the conventional product of FIG. 3 indicated by phantom lines.
FIG. 5 is a cross-sectional view illustrating a state in which a conventional female button member is attached to an eyelet member with a cloth interposed therebetween.
[Explanation of symbols]
100 Spring member 200 Inner hole 210 Flange 300 Upper opening 400 Notch 500 Female member 600 Short side 700 Stud

Claims

Two parallel spring members (100) for elastic engagement are arranged at positions adjacent to the upper opening (300) of the inner hole (200) and opposed in the diametrical direction of the upper opening (200). Two elongated rectangular cutouts (400) formed along the circumferential direction of the upper long side (420), the lower long side (410), and the opposing short sides (600, 600) A female button member (500) of a type in which a part of each spring member is exposed to the inside of the inner hole through each of the elongated rectangular cutouts (400) .
The short sides (600 , 600) facing each other in the state of forming the elongated rectangular shape together with the upper long side (420) and the lower long side (410) of each notch portion, each short side is an inner hole. A female button member characterized by being inclined so as to approach each other so that the elongated rectangular shape exhibits an inverted trapezoidal shape when viewed from the horizontal direction as it goes downward (200).