JP4520655B2

JP4520655B2 - buckle

Info

Publication number: JP4520655B2
Application number: JP2001082887A
Authority: JP
Inventors: 浩幸丸岡
Original assignee: Nifco Inc
Current assignee: Nifco Inc
Priority date: 2001-03-22
Filing date: 2001-03-22
Publication date: 2010-08-11
Anticipated expiration: 2021-03-22
Also published as: CN1175773C; JP2002282015A; TW582994B; KR100448317B1; KR20020075221A; CN1376435A

Description

【０００１】
【発明の属する技術分野】
この発明は、雌部材と、この雌部材に取り外し可能にはめ付けられる雄部材とからなるバックルの改良に関する。
【０００２】
【従来の技術】
係止体と係合体（雌雄部材）とから構成され、かかる係止体に設けられた嵌合段部（掛合突部）を係合体に形成された小孔（係合窓）にはめ込んで当該係止体と係合体とを連結させるようにした止め具（バックル）が開示されている。（実用新案公報所載の実公昭５１−３２５８３参照）
【０００３】
【発明が解決しようとする課題】
かかる止め具にあっては、前記連結状態において、止め具の長さ方向に沿った向きに作用される、連結させ合わされている前記係止体と係合体とを引き離す向きの力に対して前記小孔への嵌合段部のはまり込みにより抗することができ、こうした力の作用時における前記連結状態の維持力を一応備えている。
【０００４】
しかし、かかる止め具にあっては、前記連結状態における前記小孔からの嵌合段部の予期しない抜け出しの防止を、係合体に設けた隆起突子を係止体における基端縁に押し付けさせることにより確保しているにすぎず、かかる連結状態において前記のような力が作用された場合、この基端縁に対する隆起突子の押し付け状態が低下するため、このような力が作用されている状態から係合体に前記小孔から前記嵌合段部を抜け出させる向きの移動力が併せて作用されてしまうと前記連結状態が比較的簡単に解かれてしまうものであった。
【０００５】
そこで、この発明は、この種の止め具（バックル）において、連結状態において雌雄部材に当該雌雄部材の長さ方向に沿った向きに作用される、当該雌雄部材を離れ出させる向きの力が作用された場合に、一方部材に形成された係合窓にはまり込んだ他方部材の掛合突部が当該掛合窓から抜け出す向きに当該他方部材が移動され難いようにして、かかる連結状態を安定的に確保できるようにすることを主たる目的とする。
【０００６】
【課題を解決するための手段】
前記目的を達成するために、請求項１記載の発明にあっては、バックルが以下の（１）〜（４）の構成を備えたものとした。
（１）掛合窓を備えた正面板部と一対の側面板部とを備えた雌部材と、（２）この雌部材の背面側から前記一対の側面板部間にはめ入れられる基部と前記掛合窓にはめ入れられる掛合突部とを備えた雄部材とからなると共に、（３）この雄部材の基部及び前記雌部材の側面板部のいずれか一方に、前記はめ入れに伴なう弾性変形後の弾発によって、当該雄部材の基部及び前記雌部材の側面板部の他方に設けられた被掛合突条に掛合される掛合突条が形成してあり、（４）しかも、この被掛合突条及び掛合突条が、雌雄部材の長さ方向に長く続くように形成してあると共に、この被掛合突条及び掛合突条の少なくとも一方が、突き出し端部を丸めさせた形状としてある。
【０００７】
かかる構成によれば、前記雌部材の一対の側面板部の間に、当該雌部材の背面側から前記雄部材の掛合突部及び基部を当該掛合突部が前記掛合窓に入り込み可能となる位置に向けて入れ込み操作することにより、
（１）前記雄部材の基部及び前記雌部材の側面板部のいずれか一方に形成された掛合突条をこれらの他方に形成させた被掛合突条に突き当てて当該雌部材の側面板部側若しくは雄部材の基部側又はこれらの双方を一旦弾性変形させ、
（２）かかる弾性変形によって、前記掛合突部が前記掛合窓に入り込み可能となる位置まで雌部材内に雄部材の掛合突部及び基部を進入させることができると共に、
（３）前記掛合突部が前記掛合窓に入り込み可能となる位置まで前記雄部材の掛合突部及び基部を進入させた状態から、前記掛合突条が被掛合突条を乗り越えるように、当該雄部材を背面側から押し込むことにより、
（４）前記掛合窓に前記掛合突部を雌部材の背面側から入り込ませて当該掛合窓と掛合突部とを掛合させて、かかる雌雄部材をその長さ方向において離れ出す向きに分離しないように掛合させ合わせることができると共に、
（５）前記弾性変形後の弾発によって前記被掛合突条に掛合突条を掛合させて、前記掛合窓から掛合突部を抜け出させる向きに雄部材を構成する基部が移動しないようにすることができ、かかる雌雄部材の掛合状態を確保させることができる。
【０００８】
特に、前記被掛合突条及び掛合突条は、雌雄部材の長さ方向に長く続くように形成されていることから、前記雌部材内から前記雄部材の基部を抜け出させる向きの力が加わった場合に当該雄部材はこの向きに移動され難く、また、かかる被掛合突条と掛合突条との掛合面積を広く確保させることができ、前記雌雄部材の掛合状態は安定的に確保される。
【００１０】
また、かかる構成によれば、前記被掛合突条への掛合突条の掛合操作時に当該被掛合突条を掛合突条が乗り越えやすく、また、当該被掛合突条と掛合突条との掛合解除操作時に当該被掛合突条を掛合突条が乗り越えやすくすることができ、雌雄部材の掛合操作及び掛合解除操作を円滑に行うことができる。
【００１１】
また、請求項２記載の発明にあっては、請求項１に記載のバックルにおける被掛合突条及び掛合突条のいずれか一方が、長溝によって形成されていることを特徴としている。
【００１２】
かかる構成によれば、前記雄部材の基部又は雌部材の側面板部に長溝を形成させることにより、かかる被掛合突条および掛合突条をこれら両部材に適切に形成させることができる。
【００１３】
また、請求項３記載の発明にあっては、請求項２に記載のバックルにおける長溝の溝底が、凹球面状をなすように形成してあることを特徴としている。
【００１４】
かかる構成によれば、前記長溝によって構成される被掛合突部の長溝の内側に向けられた側面がアール面となることから、このアール面によって、前記被掛合突条と掛合突条との掛合解除操作時に当該被掛合突条を掛合突条が乗り越えやすくなり、前記雌雄部材の掛合解除操作を円滑に行うことができる。
【００１５】
また、請求項４記載の発明にあっては、請求項１、請求項２又は請求項３に記載のバックルにおける雌部材の一対の側面板部間に、掛合窓側に近付くに連れて当該雌部材の正面板部の内面との間の間隔を狭める向きに傾斜した雄部材の背面の案内面を備えた案内部が設けられていることを特徴としている。
【００１６】
かかる構成によれば、前記雌部材に対し当該雌部材の背面側から入れ込まれる雄部材の掛合突部に対し、当該雄部材のおおむね背面側に前記案内部の案内面を突き当てさせることにより、当該掛合突部が徐々に前記掛合窓に入り込む位置に近付いていくように斜め向きに雄部材をスライド移動させることができ、かかる掛合窓に掛合突部が入り込む位置まで雄部材が斜めに移動された後に当該案内部の最上部を支点とした雄部材の基部側を雌部材の正面側に近づける向きの押し込み操作によってスムースに前記被掛合突条に掛合突条を前記弾性変形後の弾発によって掛合させることができる。
【００１７】
【発明の実施の形態】
以下、図１ないし図１５に基づいて、この発明の典型的な実施の形態について説明する。
【００１８】
なお、ここで図１ないし図３は、実施の形態にかかるバックルを構成する雄部材２と雌部材１とを分離させた状態でそれぞれ示しており、また、図４および図５は、かかる雌部材１のはめ込み部１３に対し雄部材２の掛合突部２１および基部２０を入れ込み始めた状態を、また、図６ないし図９は、かかる雄部材２と雌部材１との掛合状態をそれぞれ示している。また、図１０ないし図１２は、かかる雌部材１を、また、図１３ないし図１５は、かかる雄部材２を、それぞれ示している。
【００１９】
この実施の形態にかかるバックルは、雌部材１と、この雌部材１に取り外し可能にはめ付けられる雄部材２とからなり、典型的には、雌部材１に取り付けられたバンドなどの帯状体ｗと雄部材２に取り付けられたバンドなどの帯状体ｗとを当該はめ付けに伴って連結させ合わせる用途などに用いるのに適したものである。
【００２０】
かかる雌部材１は、掛合窓１０ａを備えた正面板部１０と一対の側面板部１１、１１とを備えている。また、かかる雄部材２は、かかる雌部材１の背面側ｂから前記一対の側面板部１１、１１間にはめ入れられる基部２０と前記掛合窓１０ａにはめ入れられる掛合突部２１とを備えている。
【００２１】
具体的には、かかる雌部材１は、前記一対の側面板部１１、１１間に亘って設けられた仕切板部１２を有しており、この仕切板部１２によって仕切られた一方側を前記雄部材２のはめ込み部１３としていると共に、この仕切板部１２によって仕切られた他方側を前記帯状体ｗの取付部１４としている。
【００２２】
前記正面板部１０は、かかるはめ込み部１３を構成する前記一対の側面板部１１、１１における雌部材１の正面側ｆに向けられた縁部に当該正面板部１０の縁部を一体に連接させて、当該一対の側面板部１１、１１間の空間を当該雌部材１の正面側ｆから塞ぐように設けられている。
【００２３】
また、前記掛合窓１０ａは、この実施の形態にあっては、前記雌部材１の長さ方向ｒのほぼ中程の位置に形成されていると共に、当該雌部材１の幅方向に沿って長い矩形状をなすように前記正面板部１０に透設された穴によって形成されている。
【００２４】
また、この実施の形態にあっては、前記仕切板部１２によって仕切られた他方側にある前記一対の側面板部１１、１１の間に、間隔を開けて二本の桿状体１５、１５が架設されており、前記仕切板部１２とかかる二本の桿状体１５、１５とによって形成される二カ所のスリット１６、１６を利用して雌部材１の末端に位置される桿状体１５と当該仕切板部１２との間に位置される桿状体１５に帯状体ｗを掛け回すことによって、かかる仕切板部１２によって仕切られた他方側、つまり、前記取付部１４に対し当該帯状体ｗの取り付けをなすことができるようにしてある。（図８）
【００２５】
一方、前記雄部材２は、前記雌部材１のはめ込み部１３を構成する一対の側面板部１１、１１間にはめ入れ可能な幅を備えた基部２０の一方側に前記帯状体ｗの取付部１４を備えていると共に、この基部２０の他方側に前記掛合突部２１を有している。
【００２６】
この実施の形態にあっては、かかる基部２０は、正面板部２０ａと、一対の側面板部２０ｂ、２０ｂとから構成されており、かかる側面板部２０ｂはそれぞれ、当該正面板部２０ａにおける当該雄部材２の長さ方向ｒに沿った縁部に沿って当該縁部から当該雄部材２の背面側ｂに向けて一体に突き出すように設けられている。そして、この一対の側面板部２０ｂ、２０ｂ間の間隔が前記雌部材１のはめ込み部１３を構成する一対の側面板部１１、１１間にはめ込まれる間隔となるようにしてある。
【００２７】
また、この実施の形態にあっては、前記掛合突部２１は、かかる基部２０を構成する正面板部２０ａにおける取付部２２との接合側と反対の側にある雄部材２の幅方向に沿った縁部に一つの辺部を一体に接合させたプレート体２１ａによって構成されている。かかるプレート体２１ａは、雄部材２の正面側ｆに向けられた面を前記基部２０を構成する正面板部２０ａの外面よりも当該雄部材２の背面側ｂから離れ出すレベル、つまり、当該正面板部２０ａの外面よりも上方に位置させており、これにより、当該正面板部２０ａの外面と当該プレート体２１ａの面との間に前記取付部２２側を向いた段差状の掛合面２１ｂが形成されている。また、この実施の形態にあっては、かかるプレート体２１ａは、正面視において、前記雌部材１の掛合窓１０ａの窓縁形状にほぼ倣った矩形状をなすように構成されており、後述する雄部材２の雌部材１へのはめ入れ操作に伴って当該掛合窓１０ａをほぼ塞ぐように当該掛合窓１０ａに雌部材１の背面側ｂから入り込み、前記掛合面２１ｂを当該掛合窓１０ａにおける雌部材１の仕切板部１２に向き合った窓縁に掛合させるようにしてある。（図８）
【００２８】
また、この実施の形態にあっては、前記雄部材２の背面側ｂであって前記基部２０を構成する一対の側面板部２０ｂ、２０ｂの間に、雄部材２の長さ方向ｒに沿って当該基部２０を構成する正面板部２０ａにおける前記取付部２２との連接部から前記プレート体２１ａの掛合面２１ｂと反対の側の先端縁に亘って真っ直ぐに延びるガイドリブ２３が形成してあり、後述する雌部材１の案内部１７に形成されたガイドスリット１７ｃに当該ガイドリブ２３を入れ込ませた状態で当該雌部材１に対する雄部材２のはめ付けがなされるようにしてある。
【００２９】
また、この実施の形態にあっては、前記雄部材２の取付部２２は前記基部２０の外側に張り出す一対の側部２２ａ、２２ａ間に一本の桿状体２２ｂを架設させて構成されている。そして、この桿状体２２ｂと前記基部２０における前記プレート体２１ａとの接合側と反対の側にある当該基部２０の端部との間に形成されるスリット２２ｃを利用して当該桿状体２２ｂに帯状体ｗを掛け回すことによって、かかる取付部２２に対し当該帯状体ｗの取り付けをなすことができるようにしてある。
【００３０】
また、この実施の形態にあっては、前記のように構成される雄部材２の基部２０及び前記雌部材１の側面板部１１のいずれか一方に、前記はめ入れに伴なう弾性変形後の弾発によって、当該雄部材２の基部２０及び前記雌部材１の側面板部１１の他方に設けられた被掛合突条１１ａに掛合される掛合突条２０ｃが形成してあると共に、この被掛合突条１１ａ及び掛合突条２０ｃが、雌雄部材２の長さ方向ｒに長く続くように形成してある。
【００３１】
この実施の形態にあっては、前記雄部材２の基部２０を構成する一対の側面板部２０ｂ、２０ｂの外側にそれぞれ、当該雄部材２の長さ方向ｒに沿って長く続く掛合突条２０ｃが設けてある。
【００３２】
また、前記雌部材１のはめ込み部１３を構成する一対の側面板部１１、１１の内側であって、当該側面板部１１における前記正面板部１０との接合側と反対の当該雌部材１の長さ方向ｒに沿った縁部にそれぞれ、当該縁部に沿って被掛合突条１１ａが設けてある。
【００３３】
具体的には、この実施の形態にあっては、前記雌部材１の側面板部１１の内側に、前記雄部材２の掛合突条２０ｃが納まる幅を備え、かつ、一方の溝端を当該側面板部における前記仕切板部１２との接合側と反対の端部において外方に開放させた当該雌部材１の長さ方向ｒに沿った長溝１８を形成させることにより、当該側面板部１１における前記正面板部１０との接合側と反対の当該雌部材１の長さ方向ｒに沿った縁部に、当該縁部に沿った前記被掛合突条１１ａを形成させている。
【００３４】
そして、この実施の形態にあっては、前記雄部材２の基部２０を構成する一対の側面板部２０ｂ、２０ｂに形成された掛合突条２０ｃの先端間の寸法ｘが、前記雌部材１のはめ込み部１３を構成する一対の側面板部１１、１１に設けられた前記被掛合突条１１ａの先端間の間隔ｙよりもやや大きくなるようにしてあると共に、かかる雌部材１の一対の側面板部１１、１１側が当該被掛合突条１１ａの先端間の間隔ｙを広げ出させる向きの弾性変形を生じさせることが可能なように当該雌部材１が構成されている。（図１１、図１５）
【００３５】
かかる弾性変形特性の付与は、典型的には、前記雌部材１を射出成形などのプラスチック成形により形成させることにより確保することができる。
【００３６】
この結果、この実施の形態にあっては、前記雌部材１のはめ込み部１３を構成する一対の側面板部１１、１１の間に、当該雌部材１の背面側ｂから前記雄部材２の掛合突部２１及び基部２０を当該掛合突部２１が前記掛合窓１０ａに入り込み可能となる位置に向けて入れ込み操作することにより、
（１）前記雄部材２の基部２０に形成された掛合突条２０ｃを雌部材１の側面板部１１に形成させた被掛合突条１１ａに突き当てて当該雌部材１の側面板部１１側を外向きに一旦弾性的に広げ出させ、
（２）このように雌部材１の側面板部１１を広げ出させることによって、前記掛合突部２１が前記掛合窓１０ａに入り込み可能となる位置に向けて雌部材１のはめ込み部１３に雄部材２の掛合突部２１及び基部２０を進入させることができると共に、（図５）
（３）前記掛合突部２１が前記掛合窓１０ａに入り込み可能となる位置まで前記雄部材２の掛合突部２１及び基部２０を前記はめ込み部１３に進入させた状態から、雄部材２の基部２０に設けられた掛合突条２０ｃが雌部材１の被掛合突条１１ａを乗り越えるように、当該雄部材２の基部２０を構成する前記正面板部２０ａの外面と雌部材１のはめ込み部１３を構成する正面板部１０の内面とを近接させる向きに当該雄部材２を背面側ｂから押し込むことにより、
（４）前記掛合窓１０ａに前記掛合突部２１を雌部材１の背面側ｂから入り込ませて当該掛合窓１０ａと掛合突部２１とを掛合させて、かかる雌雄部材１、２をその長さ方向ｒにおいて離れ出す向きに分離しないように掛合させ合わせることができると共に、
（５）一旦弾性的に外向きに広がり出された前記雌部材１のはめ込み部１３を構成する側面板部１１の弾発（弾性復帰）によって前記被掛合突条１１ａに掛合突条２０ｃを掛合させて、前記掛合窓１０ａから掛合突部２１を抜け出させる向きに雄部材２を構成する基部２０が移動しないようにすることができ、かかる雌雄部材１、２の掛合状態を確保させることができる。（図８）
【００３７】
特に、前記被掛合突条１１ａ及び掛合突条２０ｃは、雌雄部材１、２の長さ方向ｒに長く続くように形成されていることから、前記雌部材１のはめ込み部１３内から前記雄部材２の基部２０を抜け出させる向きの力が加わった場合に当該雄部材２はこの向きに移動され難く、また、かかる被掛合突条１１ａと掛合突条２０ｃとの掛合面積を広く確保させることができ、前記雌雄部材１、２の掛合状態は安定的に確保される。
【００３８】
また、かかる雌雄部材１、２の掛合状態から、前記雄部材２の基部２０を構成する前記正面板部２０ａの外面と雌部材１のはめ込み部１３を構成する正面板部１０の内面とを離れ出させる向きに当該雄部材２を引き出し操作することにより、
（１）前記雌部材１の側面板部２０ｂ側を外向きに再び弾性的に広げ出させて、前記雄部材２の基部２０に設けられた掛合突条２０ｃに雌部材１の被掛合突条１１ａを乗り越えさせることができると共に、
（２）かかる操作によって前記掛合窓１０ａから前記掛合突部２１を抜き出させることができ、
（３）これにより、雌部材１のはめ込み部１３から雄部材２の掛合突部２１および基部２０を抜き出させて、ワンタッチで雌雄部材１、２の掛合状態を解くことができる。
【００３９】
なお、この実施の形態にあっては、前記雌部材１の正面板部１０における前記仕切板部１２との連接側と反対の縁部側であって、その縁部のほぼ中程位置に雌部材１の正面側ｆに向けて窪み、かつ、当該縁部において外方に連通した窪み部１９が形成されており、この窪み部１９を利用してこの窪み部１９直下にある雄部材２の端部に指などをかけて当該端部を押圧しての前記引き出し操作を行いやすいようにしてある。
【００４０】
また、この実施の形態にあっては、前記掛合突条２０ｃが、その突き出し端部２０ｄを丸めさせた形状を持つように構成してある。すなわち、かかる掛合突条２０ｃがその長さ方向ｒに直交する向きの断面において弧状の外郭形状を持つように構成してある。
【００４１】
これにより、この実施の形態にあっては、前記被掛合突条１１ａへの掛合突条２０ｃの掛合操作時に当該被掛合突条１１ａを掛合突条２０ｃが乗り越えやすく、また、当該被掛合突条１１ａと掛合突条２０ｃとの掛合解除操作時に当該被掛合突条１１ａを掛合突条２０ｃが乗り越えやすくすることができ、雌雄部材１、２の掛合操作及び掛合解除操作を円滑に行うことができる。
【００４２】
なお、被掛合突条１１ａがその突き出し端部を丸めさせた形状を持つように構成しておいても良く、また、掛合突条２０ｃ及び被掛合突条１１ａの双方がその突き出し端部を丸めさせた形状を持つように構成しておいても良く、いずれの場合にも、前記被掛合突条１１ａへの掛合突条２０ｃの掛合操作時に当該被掛合突条１１ａを掛合突条２０ｃが乗り越えやすく、また、当該被掛合突条１１ａと掛合突条２０ｃとの掛合解除操作時に当該被掛合突条１１ａを掛合突条２０ｃが乗り越えやすくすることができる。
【００４３】
また、前記長溝１８の溝底を凹球面状をなすように形成しておくこともある。
このようにした場合、かかる長溝１８によって構成される被掛合突条１１ａの長溝１８の内側に向けられた側面がアール面となることから、このアール面によって、前記被掛合突条１１ａと掛合突条２０ｃとの掛合解除操作時に当該被掛合突条１１ａを掛合突条２０ｃが乗り越えやすくなり、前記雌雄部材１、２の掛合解除操作を円滑に行うことができる。
【００４４】
また、この実施の形態にあっては、前記雌部材１の一対の側面板部１１、１１間に、掛合窓１０ａ側に近付くに連れて当該雌部材１の正面板部１０の内面との間の間隔を狭める向きに傾斜した雄部材２の背面の案内面１７ａを備えた案内部１７が設けられている。
【００４５】
具体的には、この実施の形態にあっては、かかる案内部１７は、前記雌部材１のはめ込み部１３側に向けられた仕切板部１２の面より当該雌部材１における取付部１４の設けられた側と反対の側に向けて突き出すように形成されている。
【００４６】
かかる案内部１７の雌部材１の背面側ｂに向けられた面は、前記側面板部１１における当該背面側ｂに向けられた縁部面とほぼ同面をなすように形成されている。また、かかる案内部１７の雌部材１の正面側ｆ、すなわち、前記正面板部１０の内面に向けられた面は、当該案内部１７の突き出し端から前記掛合窓１０ａ側に近付くに連れて当該雌部材１の正面板部１０の内面との間の間隔を狭める向きに傾斜しており、この面が前記案内面１７ａとなるようにしてある。また、かかる案内部１７は、前記案内面１７ａの最上部に続く平坦面１７ｂを前記掛合窓１０ａにおける前記仕切板部１２側に向けられた窓縁側に有しており、当該掛合窓１０ａに掛合突部２１がはめ込まれた状態において、この平坦面１７ｂの上方に当該掛合突部２１を構成する前記プレート体２１ａの先端部が位置されるようにしてある。（図８）
【００４７】
また、この実施の形態にあっては、かかる案内部１７は、当該案内部１７の突き出し端からその基部２０に亘るガイドスリット１７ｃにより左右に区分されており、このガイドスリット１７ｃに前記雄部材２の背面側ｂに形成されたガイドリブ２３を入れ込ませた状態で当該雌部材１のはめ込み部１３に対する雄部材２のはめ付け操作がなされるようにしてある。
【００４８】
これにより、この実施の形態にあっては、前記雌部材１のはめ込み部１３に対し当該雌部材１の背面側ｂから入れ込まれる雄部材２の掛合突部２１に対し、当該掛合突部２１のおおむね背面側ｂに前記案内部１７の案内面１７ａを突き当てさせることにより、当該掛合突部２１が徐々に前記掛合窓１０ａに入り込む位置に近付いていくように斜め向きに雄部材２をスライド移動させることができ、（図５）かかる掛合窓１０ａに掛合突部２１が入り込む位置まで雄部材２が斜めに移動された後に当該案内部１７の最上部を支点とした雄部材２の基部２０側を雌部材１の正面側ｆに近づける向きの押し込み操作によってスムースに前記被掛合突条１１ａに掛合突条２０ｃを前記弾性変形後の弾発によって掛合させることができる。
【００４９】
なお、この実施の形態にあっては、このように前記案内部１７によって斜め向きにスライド移動される雄部材２の当該基部２０に設けられた掛合突条２０ｃは、前記被掛合突条１１ａに対し前記掛合突部２１側に向けられた端部側から突き当てられることから、かかる掛合突条２０ｃの端部が当該被掛合突条１１ａを乗り越えやすいように当該端部には面取り部２０ｅが形成されている。
【００５０】
【発明の効果】
この発明にかかるバックルにあっては、連結状態において雌雄部材に当該雌雄部材の長さ方向に沿った向きに作用される、当該雌雄部材を離れ出させる向きの力が作用された場合に、雌部材に形成された係合窓にはまり込んだ雄部材の掛合突部が当該掛合窓より抜け出す向きに当該雄部材２が移動され難いようにすることができ、かかる連結状態を安定的に確保することができる。
【図面の簡単な説明】
【図１】雄部材２と雌部材１の分離正面図
【図２】同背面図
【図３】同断面図
【図４】雌部材１のはめ込み部１３に雄部材２の掛合突部２１及び基部２０を入れ込み始めた状態を示す背面図
【図５】同断面図
【図６】雄部材２と雌部材１の掛合状態を示す正面図
【図７】同背面図
【図８】同断面図
【図９】図８の断面方向と直交する向きで掛合状態にある雄部材２と雌部材１とを断面にした断面図
【図１０】雌部材１の側面図
【図１１】図１０の左側から雌部材１を見て示した側面図
【図１２】図１０の右側から雌部材１を見て示した側面図
【図１３】雄部材２の側面図
【図１４】図１３の左側から雄部材２を見て示した側面図
【図１５】図１３の右側から雄部材２を見て示した側面図
【符号の説明】
１雌部材
１０正面板部
１０ａ掛合窓
１１側面板部
１１ａ被掛合突条
２雄部材
２０基部
２０ｃ掛合突条
２１掛合突部
ｒ長さ方向[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement in a buckle comprising a female member and a male member that is detachably fitted to the female member.
[0002]
[Prior art]
It is composed of a locking body and engaging bodies (male and female members), and a fitting step (engaging projection) provided on the locking body is fitted into a small hole (engaging window) formed in the engaging body. A stopper (buckle) is disclosed that connects a locking body and an engagement body. (See Japanese Utility Model Publication No. 51-32583 in the Utility Model Gazette)
[0003]
[Problems to be solved by the invention]
In such a stopper, in the connected state, the force is applied in a direction along the length direction of the stopper, and the force is applied to the force in the direction of separating the engaging body and the engaging body that are connected together. This can be countered by the fitting step portion being fitted into the small hole, and is provided with the maintenance force of the connected state when such force is applied.
[0004]
However, in such a stopper, the protruding protrusion provided on the engagement body is pressed against the base end edge of the engagement body to prevent the fitting step portion from unexpectedly coming out of the small hole in the connected state. However, when the force as described above is applied in such a connected state, the pressing state of the raised protrusion against the base end edge is lowered, and such a force is applied. If the moving force in the direction for pulling out the fitting step portion from the small hole is applied to the engaging body from the state, the connected state can be released relatively easily.
[0005]
Therefore, according to the present invention, in this type of stopper (buckle), in the connected state, a force is applied to the male and female members in the direction along the length direction of the male and female members, and the force to move the male and female members apart. In this case, it is difficult to move the other member in a direction in which the engagement protrusion of the other member fitted into the engagement window formed on the one member comes out of the engagement window, so that the connection state is stably maintained. The main purpose is to ensure it.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, in the invention according to claim 1, the buckle has the following configurations (1) to (4).
(1) A female member having a front plate portion having a hooking window and a pair of side plate portions, and (2) a base portion fitted between the pair of side plate portions from the back side of the female member and the hooking. And (3) elastic deformation accompanying the fitting into either one of the base of the male member and the side plate of the female member. By the subsequent bullet, a hooking ridge that is hooked to the hooking ridge provided on the other of the base portion of the male member and the side plate portion of the female member is formed, and (4) The protrusions and hooking protrusions are formed so as to continue long in the length direction of the male and female members, and at least one of the hooking protrusions and the hooking protrusions has a shape in which the protruding end portion is rounded .
[0007]
According to this configuration, between the pair of side plate portions of the female member, the engaging protrusion and the base portion of the male member can be inserted into the engaging window from the back side of the female member. By inserting into the
(1) The side plate portion of the female member is abutted against the hooked projection formed on one of the base portion of the male member and the side plate portion of the female member. Side or the base side of the male member or both of them are elastically deformed once,
(2) With such elastic deformation, the engaging protrusion and base of the male member can be advanced into the female member to a position where the engaging protrusion can enter the engaging window, and
(3) From the state in which the engaging protrusion and the base of the male member are advanced to a position where the engaging protrusion can enter the engaging window, the male protrusion is moved over the engaged protrusion. By pushing the member from the back side,
(4) The engaging projection is inserted into the engaging window from the back side of the female member so that the engaging window and the engaging protrusion are engaged with each other so that the male and female members are not separated in the direction in which they are separated in the length direction. Can be hooked to each other and
(5) Engage the hooked protrusion with the hooked protrusion by the elastic deformation, and prevent the base portion constituting the male member from moving in the direction in which the hooking protrusion is pulled out from the hooking window. And the engaged state of the male and female members can be ensured.
[0008]
In particular, since the hooked protrusion and the hooking protrusion are formed so as to continue long in the length direction of the male and female members, a force is applied in a direction to cause the base of the male member to come out from the female member. In this case, the male member is not easily moved in this direction, and the engagement area between the hooked protrusion and the hooking protrusion can be secured widely, and the engagement state of the male and female members is stably ensured.
[0010]
In addition, according to such a configuration, the hooked ridge can easily get over the hooked ridge during the operation of hooking the hooked ridge on the hooked ridge, and the hook is released from the hooked ridge. During operation, the hooked ridge can easily get over the hooked ridge, and the male and female members can be smoothly engaged and released.
[0011]
The invention according to claim 2 is characterized in that either one of the hooked protrusion and the hooking protrusion in the buckle according to claim 1 is formed by a long groove.
[0012]
According to this configuration, by forming the long groove in the base portion of the male member or the side plate portion of the female member, the hooked protrusion and the hooking protrusion can be appropriately formed in both the members.
[0013]
The invention according to claim 3 is characterized in that the groove bottom of the long groove in the buckle according to claim 2 is formed to have a concave spherical shape.
[0014]
According to such a configuration, since the side surface directed to the inside of the long groove of the hooked protrusion formed by the long groove becomes a rounded surface, the hooked protrusion and the hooked protrusion are engaged by the rounded surface. At the time of the release operation, the hooked ridge can easily get over the hooked ridge, and the engagement release operation of the male and female members can be performed smoothly.
[0015]
Further, in the invention according to claim 4, the female member as it approaches the engaging window side between the pair of side plate portions of the female member in the buckle according to claim 1, claim 2 or claim 3. The guide part provided with the guide surface of the back surface of the male member inclined in the direction which narrows the space | interval between the inner surface of this front board part is characterized.
[0016]
According to such a configuration, the guide surface of the guide portion is caused to abut on the back surface side of the male member with respect to the engaging protrusion portion of the male member that is inserted into the female member from the back side of the female member. The male member can be slid obliquely so that the engaging protrusion gradually approaches the position where the engaging protrusion enters the engaging window, and the male member moves obliquely to the position where the engaging protrusion enters the engaging window. After the elastic member is elastically deformed, the hooked ridge is smoothly pushed into the hooked ridge by a pushing operation in which the base side of the male member is brought close to the front side of the female member with the uppermost portion of the guide portion as a fulcrum. Can be engaged.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, typical embodiments of the present invention will be described with reference to FIGS.
[0018]
1 to 3 show the male member 2 and the female member 1 constituting the buckle according to the embodiment in a separated state, and FIGS. 4 and 5 show such a female member. FIG. 6 to FIG. 9 show a state where the male member 2 and the female member 1 are engaged, respectively, in a state in which the engaging protrusion 21 and the base 20 of the male member 2 have started to be inserted into the fitting portion 13 of the member 1. ing. 10 to 12 show the female member 1 and FIGS. 13 to 15 show the male member 2, respectively.
[0019]
The buckle according to this embodiment includes a female member 1 and a male member 2 that is detachably fitted to the female member 1. Typically, a belt-like body w such as a band attached to the female member 1 is used. And a band-like body w such as a band attached to the male member 2 is suitable for use in connection with the fitting.
[0020]
The female member 1 includes a front plate portion 10 provided with a latching window 10a and a pair of side plate portions 11 and 11. In addition, the male member 2 includes a base portion 20 that is fitted between the pair of side surface plate portions 11 and 11 from the back side b of the female member 1 and a hooking protrusion 21 that is fitted into the hooking window 10a. Yes.
[0021]
Specifically, the female member 1 has a partition plate portion 12 provided between the pair of side surface plate portions 11, 11, and one side partitioned by the partition plate portion 12 is While it is set as the fitting part 13 of the male member 2, the other side partitioned by this partition plate part 12 is used as the attachment part 14 of the strip-like body w.
[0022]
The front plate portion 10 is integrally connected to the edge portion of the pair of side plate portions 11, 11 constituting the fitting portion 13 facing the front side f of the female member 1. Thus, the space between the pair of side plate portions 11, 11 is provided so as to close from the front side f of the female member 1.
[0023]
Further, in this embodiment, the engaging window 10 a is formed at a substantially middle position in the length direction r of the female member 1 and is long along the width direction of the female member 1. It is formed by a hole formed through the front plate 10 so as to form a rectangular shape.
[0024]
Further, in this embodiment, the two bowl-shaped bodies 15, 15 are provided with a gap between the pair of side surface plate parts 11, 11 on the other side partitioned by the partition plate part 12. A hook-like body 15 positioned at the end of the female member 1 using two slits 16, 16 formed by the partition plate portion 12 and the two hook-like bodies 15, 15 By attaching the belt-like body w around the flange-like body 15 positioned between the partition plate portion 12 and attaching the belt-like body w to the other side partitioned by the partition plate portion 12, that is, the attachment portion 14. Can be made. (Fig. 8)
[0025]
On the other hand, the male member 2 has an attachment portion for the band-like body w on one side of a base portion 20 having a width that can be fitted between the pair of side surface plate portions 11 and 11 constituting the fitting portion 13 of the female member 1. 14 and the hooking protrusion 21 on the other side of the base 20.
[0026]
In this embodiment, the base portion 20 is composed of a front plate portion 20a and a pair of side plate portions 20b, 20b, and each of the side plate portions 20b corresponds to the front plate portion 20a. It is provided so as to project integrally from the edge portion toward the back side b of the male member 2 along the edge portion along the length direction r of the male member 2. The distance between the pair of side surface plate portions 20 b and 20 b is set to be the distance between the pair of side surface plate portions 11 and 11 constituting the fitting portion 13 of the female member 1.
[0027]
Moreover, in this embodiment, the said hooking protrusion 21 is along the width direction of the male member 2 in the opposite side to the joining side with the attaching part 22 in the front board part 20a which comprises this base 20. It is comprised by the plate body 21a which joined one edge part to the edge part integrally. The plate body 21a has a level at which the surface facing the front side f of the male member 2 is farther from the rear side b of the male member 2 than the outer surface of the front plate portion 20a constituting the base portion 20, that is, the normal member It is located above the outer surface of the face plate portion 20a, so that a stepped engagement surface 21b facing the mounting portion 22 is provided between the outer surface of the front plate portion 20a and the surface of the plate body 21a. Is formed. Further, in this embodiment, the plate body 21a is configured to have a rectangular shape substantially following the window edge shape of the engaging window 10a of the female member 1 in a front view, which will be described later. As the male member 2 is fitted into the female member 1, the engaging window 10a is inserted into the engaging window 10a from the rear side b of the female member 1 so as to substantially close the engaging window 10a, and the engaging surface 21b is inserted into the female in the engaging window 10a. It is made to engage with the window edge facing the partition plate portion 12 of the member 1. (Fig. 8)
[0028]
Moreover, in this embodiment, it is along the length direction r of the male member 2 between the pair of side surface plate portions 20b and 20b that constitute the base portion 20 on the back side b of the male member 2. And a guide rib 23 extending straight from the connecting portion of the front plate portion 20a constituting the base portion 20 to the mounting portion 22 to the tip edge on the side opposite to the engaging surface 21b of the plate body 21a is formed. The male member 2 is fitted to the female member 1 in a state where the guide rib 23 is inserted into a guide slit 17c formed in the guide portion 17 of the female member 1 described later.
[0029]
Further, in this embodiment, the attachment portion 22 of the male member 2 is constructed by laying a single hook-like body 22b between a pair of side portions 22a, 22a that protrudes outside the base portion 20. Yes. A band-like shape is formed on the rod-shaped body 22b by using a slit 22c formed between the flange-shaped body 22b and the end portion of the base portion 20 on the side opposite to the joint side of the base body 20 with the plate body 21a. The belt-like body w can be attached to the attachment portion 22 by hanging the body w.
[0030]
In this embodiment, either one of the base 20 of the male member 2 configured as described above and the side plate 11 of the female member 1 is subjected to the elastic deformation accompanying the insertion. The projecting protrusion 20c is formed on the other end of the base part 20 of the male member 2 and the side plate part 11 of the female member 1 to be hooked. The engaging protrusion 11 a and the engaging protrusion 20 c are formed so as to continue long in the length direction r of the male and female member 2.
[0031]
In this embodiment, the engaging protrusion 20c that continues long along the length direction r of the male member 2 on the outside of the pair of side surface plate portions 20b and 20b constituting the base portion 20 of the male member 2, respectively. Is provided.
[0032]
Further, the inner side of the pair of side surface plate portions 11, 11 constituting the fitting portion 13 of the female member 1, which is opposite to the joint side of the side surface plate portion 11 with the front plate portion 10. Each of the edge portions along the length direction r is provided with a hooked protrusion 11a along the edge portion.
[0033]
Specifically, in this embodiment, the width of the engaging protrusion 20c of the male member 2 is accommodated inside the side surface plate portion 11 of the female member 1, and one end of the groove is disposed on the side. By forming the long groove 18 along the length direction r of the female member 1 opened outward at the end of the face plate portion opposite to the joining side with the partition plate portion 12, the side plate portion 11 The hooked protrusion 11a along the edge is formed on the edge along the length direction r of the female member 1 opposite to the side joined to the front plate 10.
[0034]
And in this embodiment, the dimension x between the tips of the engaging protrusions 20c formed on the pair of side surface plate portions 20b, 20b constituting the base portion 20 of the male member 2 is the same as that of the female member 1. The pair of side plates of the female member 1 is configured to be slightly larger than the interval y between the tips of the hooked protrusions 11a provided on the pair of side plate portions 11, 11 constituting the fitting portion 13. The female member 1 is configured such that the portions 11 and 11 can cause elastic deformation in a direction in which the interval y between the tips of the hooked protrusions 11a is widened. (FIGS. 11 and 15)
[0035]
Such elastic deformation characteristics can be typically secured by forming the female member 1 by plastic molding such as injection molding.
[0036]
As a result, in this embodiment, the male member 2 is engaged from the back side b of the female member 1 between the pair of side surface plate portions 11, 11 constituting the fitting portion 13 of the female member 1. By inserting the protrusion 21 and the base 20 toward the position where the engagement protrusion 21 can enter the engagement window 10a,
(1) The hooking protrusion 20c formed on the base 20 of the male member 2 is abutted against the hooked protrusion 11a formed on the side plate 11 of the female member 1, and the side plate 11 side of the female member 1 is provided. Once elastically spread outward,
(2) By extending the side plate portion 11 of the female member 1 in this way, the male member is inserted into the fitting portion 13 of the female member 1 toward the position where the engaging protrusion 21 can enter the engaging window 10a. The two hooking protrusions 21 and the base 20 can be advanced, and (FIG. 5)
(3) The base 20 of the male member 2 from the state in which the hooking protrusion 21 and the base 20 of the male member 2 are advanced into the fitting portion 13 until the hooking protrusion 21 can enter the hooking window 10a. The engaging plate 13 of the female member 1 and the outer surface of the front plate portion 20a constituting the base portion 20 of the male member 2 are configured so that the engaging protrusion 20c provided on the female member 1 gets over the hooked protrusion 11a of the female member 1. By pushing the male member 2 from the back side b in a direction to bring the inner surface of the front plate portion 10 close to the
(4) The engaging projection 21 is inserted into the engaging window 10a from the back side b of the female member 1 so that the engaging window 10a and the engaging protrusion 21 are engaged with each other, and the male and female members 1 and 2 have their lengths. In the direction r, it can be hooked so as not to separate in the direction of leaving, and
(5) The hooking protrusion 20c is hooked on the hooked protrusion 11a by the elasticity (elastic return) of the side surface plate part 11 constituting the fitting part 13 of the female member 1 once elastically extended outward. Thus, it is possible to prevent the base 20 constituting the male member 2 from moving in the direction in which the engaging protrusion 21 is pulled out from the engaging window 10a, and the engaging state of the male and female members 1 and 2 can be ensured. . (Fig. 8)
[0037]
In particular, the hooked protrusions 11a and the hooking protrusions 20c are formed so as to continue long in the length direction r of the male and female members 1 and 2, so that the male member is inserted from the fitting portion 13 of the female member 1. When a force in a direction that causes the base portion 20 of 2 to be pulled out is applied, the male member 2 is not easily moved in this direction, and it is possible to secure a wide engagement area between the hooked protrusion 11a and the hooking protrusion 20c. The engagement state of the male and female members 1 and 2 is ensured stably.
[0038]
Further, from the engaged state of the male and female members 1 and 2, the outer surface of the front plate portion 20 a constituting the base portion 20 of the male member 2 and the inner surface of the front plate portion 10 constituting the fitting portion 13 of the female member 1 are separated. By pulling out the male member 2 in the direction to be taken out,
(1) The side plate 20b side of the female member 1 is elastically expanded again outward, and the hooked protrusion of the female member 1 is engaged with the hooking protrusion 20c provided on the base 20 of the male member 2. 11a can be overcome,
(2) By this operation, the hooking projection 21 can be extracted from the hooking window 10a.
(3) Thereby, the engaging protrusion 21 and the base part 20 of the male member 2 can be extracted from the fitting part 13 of the female member 1, and the engaging state of the male and female members 1 and 2 can be released by one touch.
[0039]
In this embodiment, the front plate portion 10 of the female member 1 is on the edge side opposite to the connecting side with the partition plate portion 12, and the female portion 1 is substantially in the middle of the edge portion. A hollow portion 19 is formed which is recessed toward the front side f of the member 1 and communicates outward at the edge portion, and the male member 2 directly below the hollow portion 19 is formed using the hollow portion 19. It is easy to perform the pull-out operation by placing a finger or the like on the end and pressing the end.
[0040]
Further, in this embodiment, the engaging protrusion 20c is configured to have a shape obtained by rounding the protruding end 20d. That is, the hooking protrusion 20c is configured to have an arcuate outer shape in a cross section in a direction perpendicular to the length direction r.
[0041]
Thereby, in this embodiment, the hooking protrusion 20c can easily get over the hooking protrusion 11a when the hooking protrusion 20c is engaged with the hooking protrusion 11a. At the time of the unlocking operation between the hook 11a and the hooking protrusion 20c, the hooking protrusion 20c can easily get over the hooked protrusion 11a, and the hooking operation and the hook releasing operation of the male and female members 1 and 2 can be performed smoothly. .
[0042]
In addition, you may comprise so that the to-be-engaged protrusion 11a may have the shape which rounded the protrusion end, and both the engagement protrusion 20c and the to-be-engaged protrusion 11a rounded the protrusion end. In any case, the hooking protrusion 20c gets over the hooked protrusion 11a when the hooking protrusion 20c is engaged with the hooking protrusion 11a. In addition, it is possible to make it easier for the hooking protrusion 20c to get over the hooked protrusion 11a when the hooking protrusion 11a and the hooking protrusion 20c are unlocked.
[0043]
Further, the bottom of the long groove 18 may be formed to have a concave spherical shape.
In this case, since the side surface directed to the inside of the long groove 18 of the hooked protrusion 11a constituted by the long groove 18 is a rounded surface, the hooked protrusion 11a and the hooking protrusion are formed by the rounded surface. At the time of the latch release operation with the strip 20c, the latch projection 20c can easily get over the hooked projection 11a, and the latch release operation of the male and female members 1 and 2 can be performed smoothly.
[0044]
Moreover, in this embodiment, between the pair of side surface plate portions 11, 11 of the female member 1 and the inner surface of the front plate portion 10 of the female member 1 as it approaches the engagement window 10 a side. The guide part 17 provided with the guide surface 17a of the back surface of the male member 2 inclined in the direction which narrows the space | interval of is provided.
[0045]
Specifically, in this embodiment, the guide portion 17 is provided with the mounting portion 14 in the female member 1 from the surface of the partition plate portion 12 directed to the fitting portion 13 side of the female member 1. It is formed so as to protrude toward the side opposite to the formed side.
[0046]
The surface of the guide portion 17 facing the back side b of the female member 1 is formed so as to be substantially flush with the edge surface of the side plate portion 11 facing the back side b. Further, the front side f of the female member 1 of the guide portion 17, that is, the surface directed to the inner surface of the front plate portion 10, as it approaches the engagement window 10 a side from the protruding end of the guide portion 17. The female member 1 is inclined so as to narrow the space between the inner surface of the front plate portion 10 of the female member 1 and this surface is the guide surface 17a. Further, the guide portion 17 has a flat surface 17b following the uppermost portion of the guide surface 17a on the window edge side facing the partition plate portion 12 side in the engagement window 10a, and engages with the engagement window 10a. In the state where the protrusion 21 is fitted, the tip end portion of the plate body 21a constituting the engaging protrusion 21 is positioned above the flat surface 17b. (Fig. 8)
[0047]
Further, in this embodiment, the guide portion 17 is divided into left and right by a guide slit 17c extending from the protruding end of the guide portion 17 to the base portion 20, and the male member 2 is separated from the guide slit 17c. The fitting operation of the male member 2 to the fitting portion 13 of the female member 1 is performed in a state in which the guide rib 23 formed on the back side b of the female member 1 is inserted.
[0048]
Thereby, in this embodiment, the engaging protrusion 21 of the male member 2 is inserted into the engaging portion 13 of the female member 1 from the back side b of the female member 1. The male member 2 is slid obliquely so that the engagement protrusion 21 gradually approaches the position where the engagement protrusion 21 gradually enters the engagement window 10a by causing the guide surface 17a of the guide portion 17 to abut the back surface b. The base 20 of the male member 2 with the uppermost portion of the guide portion 17 as a fulcrum after the male member 2 is moved obliquely to the position where the engaging projection 21 enters the engaging window 10a (FIG. 5). The hooking protrusion 20c can be smoothly engaged with the hooked protrusion 11a by the elastic deformation after the pushing operation in a direction in which the side is brought closer to the front side f of the female member 1.
[0049]
In this embodiment, the hooking ridge 20c provided on the base 20 of the male member 2 that is slid and moved obliquely by the guide portion 17 is formed on the hooked ridge 11a. On the other hand, since it is abutted from the end side directed toward the hooking protrusion 21, a chamfered portion 20 e is provided at the end so that the end of the hooking protrusion 20 c easily gets over the hooked protrusion 11 a. Is formed.
[0050]
【The invention's effect】
In the buckle according to the present invention, when a force is applied to the male and female members in the direction along the length direction of the male and female members in the connected state, and the direction to move the male and female members apart is applied. It is possible to prevent the male member 2 from moving in a direction in which the engaging protrusion of the male member fitted into the engaging window formed on the member is pulled out from the engaging window, and to ensure such a connected state stably. be able to.
[Brief description of the drawings]
1 is a separated front view of a male member 2 and a female member 1. FIG. 2 is a rear view of the male member. FIG. 4 is a cross-sectional view of the female member. FIG. 5 is a cross-sectional view showing the state in which the base portion 20 is started to be inserted. FIG. 6 is a front view showing a state where the male member 2 and the female member 1 are engaged. FIG. 7 is a rear view. 9 is a cross-sectional view in which the male member 2 and the female member 1 are engaged in a direction orthogonal to the cross-sectional direction of FIG. 8. FIG. 10 is a side view of the female member 1. FIG. FIG. 12 is a side view of the female member 1 viewed from the right side of FIG. 10. FIG. 13 is a side view of the female member 1 viewed from the right side of FIG. Side view showing the member 2 [FIG. 15] Side view showing the male member 2 from the right side of FIG.
DESCRIPTION OF SYMBOLS 1 Female member 10 Front plate part 10a Engagement window 11 Side plate part 11a Engagement protrusion 2 Male member 20 Base 20c Engagement protrusion 21 Engagement protrusion r Length direction

Claims

A female member having a front plate portion and a pair of side plate portions provided with a latching window;
The male member includes a base member fitted between the pair of side plate portions from the back side of the female member and a male member provided with a hooking protrusion fitted into the hooking window.
By either the base of the male member or the side plate of the female member, the elastic member undergoes elastic deformation accompanying the insertion, and the other of the base of the male member and the side plate of the female member A hooked ridge that is hooked to the hooked ridge provided is formed,
In addition, the hooking protrusion and the hooking protrusion are formed so as to continue long in the length direction of the male and female members, and at least one of the hooking protrusion and the hooking protrusion rounds the protruding end. A buckle characterized by its shape .

The buckle according to claim 1, wherein one of the hooked protrusion and the hooking protrusion is formed by a long groove.

The buckle according to claim 2, wherein a groove bottom of the long groove is formed to have a concave spherical shape.

A guide portion provided between the pair of side surface plate portions of the female member and a guide surface on the back surface of the male member that is inclined to narrow the distance between the inner surface of the front plate portion of the female member as it approaches the engagement window side. The buckle according to claim 1, wherein the buckle is provided.