JP2017136285A

JP2017136285A - buckle

Info

Publication number: JP2017136285A
Application number: JP2016020538A
Authority: JP
Inventors: 円香南部; Madoka Nambu; 金子　仁; Hitoshi Kaneko; 仁金子
Original assignee: YKK Corp
Current assignee: YKK Corp
Priority date: 2016-02-05
Filing date: 2016-02-05
Publication date: 2017-08-10
Anticipated expiration: 2036-02-05
Also published as: DE102017000947A1; JP6761639B2; DE102017000947B4; TWI619444B; CN107041606A; TW201728280A

Abstract

PROBLEM TO BE SOLVED: To provide a buckle in which the engagement of a plug can easily be performed even when foreign matter is present in a socket, and the disengagement is also possible reliably.SOLUTION: A buckle comprises a plug 12 and a socket 14 that can be connected with each other. The plug 12 has engagement parts in a pair of legs 20, respectively. The socket 14 is configured such that an upper surface part 45 and a lower surface part face each other with a space therebetween, an insertion port 40a enabling the plug 12 to be inserted is provided, and a fitting part 40 continued from the insertion port 40a is included. A pair of engaged parts with the engagement parts engaged therewith is included at least in one of an inside surface of the upper surface part 45 and the inside surface of the lower surface part. An opening 62 is provided between the upper surface part 45 and the lower surface part of the attaching part 42 side of the socket 14. An opening recess 58 coming into communication with the opening 62 and being penetrated in the front-back direction is provided at least in one attaching part 42 side of the upper surface part 45 and the lower surface part and in the lateral direction central part. The horizontal width of the opening recess 58 is narrower than the lateral direction interval between the sides opposed to each other of the pair of legs 20.SELECTED DRAWING: Figure 1

Description

この発明は、互いに係合及び係合解除可能なプラグとソケットとを備え、テープやベルト、その他の部材の別々の部分同士を連結状態から分離するバックルに関する。 The present invention relates to a buckle that includes a plug and a socket that can be engaged and disengaged from each other and separates separate portions of a tape, a belt, and other members from a connected state.

従来、二つの連結対象物を着脱自在に連結するバックルとして、例えば特許文献１に開示されているバックルがあった。このバックルは、プラグとソケットから成り、プラグは、テープ等が挿通され連結されるテープ挿通孔が設けられた取付部であるテープ通し部と、テープ通し部の幅方向両端部から互いに平行に延びる一対の脚部とを有する。各脚部は、弾性変形可能に設けられ、先端部に、表裏方向に突出して形成された一対の係合突部が設けられている。プラグが嵌合するソケットにも、テープ挿通孔が設けられたテープ通し部が設けられ、テープ通し部の一方の端部から中空のプラグ嵌合部が一体に設けられている。プラグ嵌合部は、先端部が開口した上板と下板とから成り、上板及び下板の幅方向両側縁には、操作開口部が形成されている。操作開口部の基端部側には、プラグ嵌合部に挿入された一対の脚部の一対の係合突部とそれぞれ係合可能な被係合部が形成されている。そして、ソケットの下板のテープ通し部側の端部には、テープ通し部の長手方向に平行に延びた孔部が形成され、この孔部の周縁部からソケット内に突部が設けられ、プラグの係合突起が係合可能に設けられている。従って、プラグとソケットの係合状体で、孔部からはプラグの係合突起が露出している。 Conventionally, there has been a buckle disclosed in Patent Document 1, for example, as a buckle for detachably connecting two objects to be connected. This buckle is composed of a plug and a socket, and the plug extends in parallel with each other from a tape passing portion which is an attachment portion provided with a tape insertion hole through which a tape or the like is inserted and connected, and from both ends in the width direction of the tape passing portion. A pair of legs. Each leg portion is provided so as to be elastically deformable, and a pair of engaging projections formed so as to protrude in the front and back direction are provided at the tip portion. The socket into which the plug is fitted is also provided with a tape threading portion provided with a tape insertion hole, and a hollow plug fitting portion is integrally provided from one end of the tape threading portion. The plug fitting portion is composed of an upper plate and a lower plate whose front end portions are open, and operation openings are formed on both side edges of the upper plate and the lower plate in the width direction. Engaged portions that can be engaged with a pair of engaging protrusions of a pair of leg portions inserted into the plug fitting portion are formed on the base end side of the operation opening. And the hole part extended in parallel with the longitudinal direction of the tape threading part is formed in the edge part by the side of the tape threading part of the lower board of a socket, and a projection is provided in the socket from the peripheral part of this hole part, An engagement protrusion of the plug is provided to be engageable. Therefore, the engagement protrusion of the plug is exposed from the hole in the engagement body of the plug and the socket.

また、特許文献２に開示されたバックルも上記特許文献１と同様の基本的構成を備えているが、ソケットのテープ通し部側には、開口した解放口が設けられているとともに、この開放口から、ソケットの下板にプラグの挿入口側に向かって凹状に形成された開口縁が連続して設けられている。これにより、この解放口には、プラグの係合突部の先端面と裏面が露出している。 Further, the buckle disclosed in Patent Document 2 has the same basic configuration as that of Patent Document 1, but an opening is provided on the tape passing portion side of the socket. From the bottom of the socket, an opening edge formed in a concave shape toward the insertion port side of the plug is continuously provided. Thereby, the front end surface and the back surface of the engagement protrusion of the plug are exposed at the release port.

特開２００４−１６０１６６号公報JP 2004-160166 A 特開２０１１−２５４９２９号公報JP 2011-254929 A

上記特許文献１に開示されたバックルは、ソケットに形成された孔部が、プラグの挿入方向と直交する面に設けられているため、ソケット内にゴミや雪等の異物が詰まっていた場合、その異物が孔部から排出されずソケット内に詰まり、ソケットの挿入や、係合突部の係合ができない場合があった。 The buckle disclosed in Patent Document 1 is provided with a hole formed in the socket on a surface perpendicular to the insertion direction of the plug, so that foreign matter such as dust or snow is clogged in the socket. In some cases, the foreign matter is not discharged from the hole portion and is clogged in the socket, and the socket cannot be inserted or the engaging protrusion cannot be engaged.

また、特許文献２に開示されたバックルの場合、ソケットのテープ通し部側に解放口が形成されているので、ソケット内に多少の異物があっても、プラグの挿入時に、異物がソケットのテープ通し部側の解放口から排出される。しかし、解放口が大きく、かえってソケット内に異物が入りやすいという問題があった。さらに、プラグとソケットの係合状態で、解放口の凹状の開口縁から異物が入り、一対の脚部間に挟み込んだ場合、異物によりプラグの係合突部が互いに近づく方向に揺動できず、係合状態から解除できない場合があった。 Further, in the case of the buckle disclosed in Patent Document 2, since a release port is formed on the tape threading portion side of the socket, even if there is some foreign matter in the socket, the foreign matter is inserted into the socket tape when the plug is inserted. It is discharged from the opening on the passage side. However, there is a problem in that the release port is large and foreign matter tends to enter the socket. In addition, when the plug and socket are engaged, foreign matter enters from the concave opening edge of the release port and is sandwiched between a pair of legs, the plug's engaging projections cannot swing in a direction approaching each other. In some cases, the engaged state could not be released.

この発明は、上記背景技術の問題点に鑑みて成されたもので、ソケット内に異物があってもプラグの係合を容易に行うことができ、係合解除も確実に可能なバックルを提供することを目的とする。 The present invention has been made in view of the above-described problems of the background art, and provides a buckle that can easily engage with a plug even if there is a foreign object in the socket and can reliably disengage the plug. The purpose is to do.

この発明は、互いに連結可能で、各々所定の部材に取り付けられる取付部を有するプラグとソケットから成り、前記プラグは、一対の脚部を備え、前記一対の脚部の先端部寄りの位置に各々係合部が形成され、前記ソケットは、上面部と下面部が互いに間隔を空けて対面するとともに、前記上面部と前記下面部の端部に前記プラグが挿入可能な挿入口を有し、前記上面部と前記下面部間の空間により前記挿入口から連続する嵌合部が形成され、前記嵌合部を形成した前記上面部の内面と前記下面部の内面の少なくとも一方に、前記係合部が係合する一対の被係合部を備え、前記ソケットの前記取付部側の、前記上面部と前記下面部間に、前記嵌合部に連通し前記挿入口に対向する開口部が形成され、前記上面部と前記下面部の少なくとも一方の前記取付部側で、かつ左右方向の中央部に、前記開口部に連通するとともに表裏方向に貫通した開口凹部が形成され、前記開口凹部の左右方向の幅は、前記一対の脚部の互いに対向する側面間の左右方向の間隔よりも狭く形成されているバックルである。 The present invention includes a plug and a socket that are connectable to each other and each have a mounting portion that is attached to a predetermined member, and the plug includes a pair of leg portions, each at a position near the tip end portion of the pair of leg portions. An engaging portion is formed, and the socket has an insertion port into which the upper surface portion and the lower surface portion face each other with a space therebetween, and the plug can be inserted into end portions of the upper surface portion and the lower surface portion, A fitting portion that is continuous from the insertion port is formed by a space between the upper surface portion and the lower surface portion, and the engagement portion is provided on at least one of the inner surface of the upper surface portion and the inner surface of the lower surface portion that forms the fitting portion. A pair of engaged portions that engage with each other, and an opening portion that communicates with the fitting portion and faces the insertion port is formed between the upper surface portion and the lower surface portion on the mounting portion side of the socket. , At least one of the upper surface portion and the lower surface portion An opening recess that communicates with the opening and penetrates in the front and back direction is formed on the attachment portion side and in the center in the left-right direction, and the width of the opening recess in the left-right direction is opposite to the pair of leg portions. It is a buckle formed narrower than the distance in the left-right direction between the side surfaces.

前記ソケットは、前記上面部および前記下面部の少なくとも一方に、表裏方向に開口し一対の前記被係合部から各々連続した一対の透孔を備え、前記開口凹部は、一対の前記透孔の間に形成され、前記透孔と前記開口凹部の間に、前記上面部または前記下面部の一部で形成された側縁部が設けられたものである。 The socket includes a pair of through holes that open in the front and back direction and are continuous from the pair of engaged portions, at least one of the upper surface portion and the lower surface portion, and the opening recess includes a pair of the through holes. A side edge portion formed by a part of the upper surface portion or the lower surface portion is provided between the through hole and the opening recess.

前記開口凹部は、前記上面部と前記下面部の一方に形成され、前記上面部と前記下面部の他方の、前記取付部側の端部により、前記開口凹部が覆われているものである。 The opening recess is formed in one of the upper surface portion and the lower surface portion, and the opening recess is covered with an end of the other of the upper surface portion and the lower surface portion on the attachment portion side.

前記嵌合部の前記取付部側の端面に端面壁部が設けられ、前記開口部は前記端面壁部に形成されているものである。前記開口部は、左右方向の幅が前記一対の透孔の前記開口凹部側の側縁間の間隔より狭く形成されている。または、前記開口部は、左右方向の幅が前記一対の透孔の前記開口凹部側の側縁間の間隔より広く形成されているものでも良い。 An end surface wall portion is provided on an end surface of the fitting portion on the attachment portion side, and the opening is formed in the end surface wall portion. The opening has a width in the left-right direction that is narrower than a distance between side edges of the pair of through holes on the opening recess side. Alternatively, the opening may be formed such that the width in the left-right direction is wider than the distance between the side edges of the pair of through holes on the opening recess side.

前記プラグは、一対の脚部の間に前後方向に突出したガイド部を有し、前記プラグと前記ソケットが係合した状態で、前記ガイド部の先端は、前記開口凹部の前記挿入口側の端縁に位置するものでも良い。 The plug has a guide portion that protrudes in the front-rear direction between a pair of leg portions, and in a state where the plug and the socket are engaged, the tip of the guide portion is located on the insertion opening side of the opening recess. It may be located at the edge.

前記端面壁部は、前記側縁部の前記取付部側の端縁にて、前記上面部および前記下面部を連結して形成されている。また、前記開口部は、前記嵌合部の表裏面間の幅全体にわたって開口しているものである。 The end surface wall portion is formed by connecting the upper surface portion and the lower surface portion at an end edge of the side edge portion on the attachment portion side. Moreover, the said opening part is opened over the whole width between the front and back of the said fitting part.

この発明のバックルは、ソケット内に異物があってもプラグの係合を容易に行うことができ、係合解除も確実に可能なものである。これにより、操作性が良く、係合及び係合解除が確実に行われ、信頼性や安全性の高いバックルを提供することができる。 According to the buckle of the present invention, the plug can be easily engaged even if there is a foreign substance in the socket, and the engagement can be reliably released. Thereby, operability is good, engagement and disengagement are performed reliably, and a buckle with high reliability and safety can be provided.

この発明の第一実施形態のバックルのプラグとソケットの係合状態を示す斜視図である。It is a perspective view which shows the engagement state of the plug and socket of the buckle of 1st embodiment of this invention. 第一実施形態のバックルのプラグとソケットの係合状態を示す背面図である。It is a rear view which shows the engagement state of the plug and socket of the buckle of 1st embodiment. 第一実施形態のバックルのプラグとソケットの係合状態を示す底面図である。It is a bottom view which shows the engagement state of the plug and socket of the buckle of 1st embodiment. 第一実施形態のバックルのソケットの斜視図である。It is a perspective view of the socket of the buckle of 1st embodiment. 第一実施形態のバックルのソケットの正面図である。It is a front view of the socket of the buckle of a first embodiment. 第一実施形態のバックルのソケットの背面図である。It is a rear view of the socket of the buckle of 1st embodiment. 第一実施形態のバックルのソケットの右側面図である。It is a right view of the socket of the buckle of 1st embodiment. 第一実施形態のバックルソケットの底面図である。It is a bottom view of the buckle socket of 1st embodiment. 図５のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 図７のＢ−Ｂ断面図である。It is BB sectional drawing of FIG. 第一実施形態のバックルのプラグを示す斜視図である。It is a perspective view which shows the plug of the buckle of 1st embodiment. 第一実施形態のバックルのプラグの正面図である。It is a front view of the plug of the buckle of 1st embodiment. 第一実施形態のバックルのプラグの背面図である。It is a rear view of the plug of the buckle of the first embodiment. この発明の第二実施形態のバックルを示す斜視図である。It is a perspective view which shows the buckle of 2nd embodiment of this invention. 第二実施形態のバックルのソケットの背面図である。It is a rear view of the socket of the buckle of 2nd embodiment. 第二実施形態のバックルのソケットを示す斜視図である。It is a perspective view which shows the socket of the buckle of 2nd embodiment. この発明の第三実施形態のバックルを示す斜視図である。It is a perspective view which shows the buckle of 3rd embodiment of this invention. 第三実施形態のバックルのソケットの背面図である。It is a rear view of the socket of the buckle of 3rd embodiment. 第三実施形態のバックルのソケットを示す斜視図である。It is a perspective view which shows the socket of the buckle of 3rd embodiment. この発明の第四実施形態のバックルを示す斜視図である。It is a perspective view which shows the buckle of 4th embodiment of this invention. 第四実施形態のバックルのソケットの背面図である。It is a rear view of the socket of the buckle of 4th embodiment. 第四実施形態のバックルのソケットを示す斜視図である。It is a perspective view which shows the socket of the buckle of 4th embodiment.

以下、この発明の第一実施形態のバックル１０について、図１〜図１３を基にして説明する。このバックル１０は、図１〜図３に示すように、プラグ１２と、プラグ１２が嵌合して係止されるソケット１４とから成るもので、テープやベルト、その他の一対の部材に各々取り付けられ、互いに連結及び連結解除を任意に可能にする。以後の説明において、プラグ１２をソケット１４に挿入または離脱する方向を前後方向とし、プラグ１２をソケット１４に挿入する方向を前方向、連結状態にあるプラグ１２をソケット１４から離脱する方向を後ろ方向とし、前後方向とは、図２の紙面において上下方向でもある。ソケット１４の後述する一対の操作孔５０が対向する方向であって、プラグ１２の一対の脚部２０が対向する方向を左右方向とし、左右方向とは、図２の紙面において左右方向でもある。左右方向及び前後方向に直交する方向を表裏方向また厚み方向という。 Hereinafter, the buckle 10 of 1st Embodiment of this invention is demonstrated based on FIGS. As shown in FIGS. 1 to 3, the buckle 10 is composed of a plug 12 and a socket 14 to which the plug 12 is fitted and locked, and is attached to a tape, a belt, or another pair of members. Optionally allowing connection and disconnection to each other. In the following description, the direction in which the plug 12 is inserted into or removed from the socket 14 is referred to as the front-rear direction, the direction in which the plug 12 is inserted into the socket 14 is the forward direction, and the direction in which the plug 12 is in the connected state is removed from the socket 14 The front-rear direction is also the vertical direction on the paper surface of FIG. A direction in which a pair of operation holes 50 to be described later of the socket 14 face each other and a direction in which a pair of leg portions 20 of the plug 12 face each other is a left-right direction, and the left-right direction is also a left-right direction on the paper surface of FIG. The direction orthogonal to the left-right direction and the front-rear direction is referred to as the front-back direction or thickness direction.

プラグ１２は、例えばポリアセタール、ポリアミド、ポリプロピレンなどの合成樹脂で一体成形により形成されている。プラグ１２は、図１１〜図１３に示すように、ソケット１４に挿入される脚部２０と、脚部２０の先端部２０ａに位置した先端連結部２３、及び先端連結部２３のさらに先端寄りの位置に一体に設けられた係合部である係合突起２２を備えている。係合突起２２とは反対側には、一対の脚部２０の基端部２０ｂに一体に設けられた取付部２４が設けられている。取付部２４は、テープやベルト、その他の所定の部材を挿通し連結する部分として機能する。 The plug 12 is formed by integral molding with a synthetic resin such as polyacetal, polyamide, or polypropylene. As shown in FIGS. 11 to 13, the plug 12 includes a leg portion 20 to be inserted into the socket 14, a tip connecting portion 23 positioned at the tip portion 20 a of the leg portion 20, and a tip portion closer to the tip of the tip connecting portion 23. An engagement protrusion 22 is provided as an engagement portion provided integrally with the position. On the side opposite to the engagement protrusion 22, an attachment portion 24 provided integrally with the base end portion 20 b of the pair of leg portions 20 is provided. The attachment portion 24 functions as a portion that inserts and connects a tape, a belt, and other predetermined members.

一対の脚部２０は、互いに対称に取付部２４から突出し、各脚部２０は、外側脚片２５と内側脚片２７を備え、外側脚片２５と内側脚片２７の突出方向先端に、先端連結部２３が一体に設けられ、外側脚片２５と内側脚片２７の先端が互いに連結されている。外側脚片２５は、突出方向の中央部が左右方向の外側に膨出し、膨らんだ部分がプラグ１２の係合を解除する操作部２６になる。内側脚片２７は、外側脚片２５の左右方向の内側に位置し、外側脚片２５よりも左右方向の厚みが薄く形成されている。さらに内側脚片２７は、外側脚片２５よりも大きな曲率で左右方向の外側に湾曲した形状に形成されている。 The pair of leg portions 20 project symmetrically from the attachment portion 24, and each leg portion 20 includes an outer leg piece 25 and an inner leg piece 27, and a distal end is provided at the distal end in the projecting direction of the outer leg piece 25 and the inner leg piece 27. The connection part 23 is provided integrally, and the tips of the outer leg piece 25 and the inner leg piece 27 are connected to each other. In the outer leg piece 25, the central portion in the protruding direction bulges outward in the left-right direction, and the bulged portion becomes the operation portion 26 that releases the engagement of the plug 12. The inner leg piece 27 is positioned on the inner side in the left-right direction of the outer leg piece 25, and is formed with a thickness in the left-right direction thinner than that of the outer leg piece 25. Further, the inner leg piece 27 is formed in a shape curved outward in the left-right direction with a larger curvature than the outer leg piece 25.

脚部２０の先端部２０ａに設けられた先端連結部２３は、操作部２６よりも表裏方向の厚みが薄く形成され、外側脚片２５と内側脚片２７の厚み方向の中央部に位置して前後方向に延出している。係合突起２２は、先端連結部２３の先端に位置して表裏方向の両方に突出して各々設けられている。係合突起２２には、脚部２０の基端部２０ｂ側に面して、係止段部２２ａ設けられ、係止段部２２ａは、後述するソケット１４の被係合部５２の被係止段部５２ａに係合可能に形成されている。 The distal end connecting portion 23 provided at the distal end portion 20 a of the leg portion 20 is formed to be thinner in the front and back direction than the operation portion 26, and is located at the center portion in the thickness direction of the outer leg piece 25 and the inner leg piece 27. It extends in the front-rear direction. The engaging protrusions 22 are provided at the front end of the front end connecting portion 23 so as to protrude in both the front and back directions. The engaging protrusion 22 is provided with a locking step portion 22a facing the base end portion 20b side of the leg portion 20, and the locking step portion 22a is locked to a to-be-engaged portion 52 of the socket 14 described later. It is formed to be engageable with the stepped portion 52a.

一対の脚部２０の基端部２０ｂ側では、外側脚片２５と内側脚片２７の基端が、取付部２４の両端から一体に延出したアーム部２８により、各々連結されている。これにより、各脚部２０は、各々外側脚片２５と内側脚片２７及び先端連結部２３とアーム部２８により囲まれた空間２９を有して形成されている。各アーム部２８は、取付部２４の両端であって、一対の脚部２０の基端部２０ｂに位置し、左右方向の中央部に向かって脚部２０の突出方向に傾斜した直線状に形成され、略Ｖ字状に設けられている。中央部の互いに対向したアーム先端部２８ａ同士は一定の隙間を有し、後述するガイド部３０のスリット３２の端部として対向している。 On the base end portion 20 b side of the pair of leg portions 20, the base ends of the outer leg piece 25 and the inner leg piece 27 are connected by arm portions 28 that integrally extend from both ends of the attachment portion 24. Thereby, each leg part 20 is formed to have a space 29 surrounded by the outer leg piece 25, the inner leg piece 27, the tip connecting part 23, and the arm part 28. Each arm portion 28 is located at both ends of the attachment portion 24 and is located at the base end portion 20b of the pair of leg portions 20, and is formed in a straight line inclined in the protruding direction of the leg portion 20 toward the central portion in the left-right direction. It is provided in a substantially V shape. The arm tip portions 28a opposed to each other in the center portion have a certain gap and are opposed to each other as an end portion of a slit 32 of the guide portion 30 described later.

各アーム部２８のアーム先端部２８ａが対向した左右方向中央部には、プラグ１２のソケット１４への挿入動作をガイドするガイド部３０が、脚部２０の突出方向と平行に設けられている。ガイド部３０は、アーム先端部２８ａから互いに平行に左右方向に対向して、一体に前後方向に延出し細長いＵ字状に形成されている。ガイド部３０の先端部３０ａは、脚部２０の先端連結部２３付近で互いに連結され、ガイド部３０のＵ字状の間の空間がスリット３２として形成されている。先端部３０ａの位置は、脚部２０の先端連結部２３の先端よりも僅かに前後方向の基端部２０ｂ寄りに位置している。 A guide portion 30 that guides the insertion operation of the plug 12 into the socket 14 is provided in parallel with the protruding direction of the leg portion 20 at the central portion in the left-right direction facing the arm tip portion 28a of each arm portion 28. The guide portion 30 is formed in an elongated U-shape extending in the front-rear direction integrally with the arm tip portion 28a in parallel with each other in the left-right direction. The distal end portion 30 a of the guide portion 30 is coupled to each other in the vicinity of the distal end coupling portion 23 of the leg portion 20, and a space between the U-shapes of the guide portion 30 is formed as a slit 32. The position of the distal end portion 30 a is located slightly closer to the proximal end portion 20 b in the front-rear direction than the distal end of the distal end connecting portion 23 of the leg portion 20.

取付部２４は、プラグ１２の端部の第１のバー３３と、一対の脚部２０の基端部２０ｂを連結した第２のバー３４とが左右方向に平行に設けられ、その間にテープ挿通孔２４ａが形成され一体に設けられている。さらに、第２のバー３４とアーム部２８で囲まれる部分も空間が設けられ、テープ挿通孔２４ｂを形成している。第１のバー３３は、取付部２４の表裏方向の幅と等しく形成され、第２のバー３４は、取付部２４の表裏方向の表面側に位置して、表裏方向に第１のバー３３よりも薄く形成されている。いる。 The mounting portion 24 is provided with a first bar 33 at the end of the plug 12 and a second bar 34 connecting the base end portions 20b of the pair of leg portions 20 in parallel in the left-right direction, and a tape is inserted therebetween. A hole 24a is formed and provided integrally. Furthermore, a space is also provided in a portion surrounded by the second bar 34 and the arm portion 28 to form a tape insertion hole 24b. The first bar 33 is formed to be equal to the width in the front and back direction of the mounting portion 24, and the second bar 34 is located on the front side in the front and back direction of the mounting portion 24, and is closer to the front and back direction than the first bar 33. Is also formed thin. Yes.

ソケット１４も、例えばポリアセタール、ポリアミド、ポリプロピレンなどの合成樹脂で一体成形により形成されている。ソケット１４は、図４〜図１０に示すように、プラグ１２の脚部２０が挿入される中空の嵌合部４０と、嵌合部４０の挿入口４０ａとは反対側に位置した取付部４２とから成る。取付部４２には、テープやベルト、その他の所定部材を挿通するテープ挿通孔４２ａが形成され、テープ部材等を連結する連結バー４４が設けられている。 The socket 14 is also formed by integral molding with a synthetic resin such as polyacetal, polyamide, or polypropylene. As shown in FIGS. 4 to 10, the socket 14 includes a hollow fitting portion 40 into which the leg portion 20 of the plug 12 is inserted, and an attachment portion 42 located on the opposite side of the insertion portion 40 a of the fitting portion 40. It consists of. The attachment portion 42 is formed with a tape insertion hole 42a through which a tape, a belt, and other predetermined members are inserted, and a connecting bar 44 for connecting the tape member and the like is provided.

ソケット１４の嵌合部４０は、上面部４５と下面部４６が互いに所定間隔を空けて対面し、プラグ１２の挿入空間を形成している。上面部４５と下面部４６の挿入口４０ａ側の端部は、その中央部に向かって前後方向の挿入口４０ａ中央に傾斜する略Ｖ字状に形成されている。ソケット１４の左右方向の側面は、互いに対向した側壁部４８が設けられ、側壁部４８の前後方向の中央部に、脚部２０の操作部２６が各々露出する操作孔５０が各々形成されている。操作孔５０は、左右方向に互いに近づくように凹状に湾曲して形成され、操作部２６が左右方向に露出可能に形成されている。 In the fitting portion 40 of the socket 14, the upper surface portion 45 and the lower surface portion 46 face each other at a predetermined interval to form an insertion space for the plug 12. The end portions on the insertion port 40a side of the upper surface portion 45 and the lower surface portion 46 are formed in a substantially V-shape that is inclined toward the center of the insertion port 40a in the front-rear direction. Side walls 48 facing each other are provided on the side surfaces of the socket 14 in the left-right direction, and operation holes 50 through which the operation parts 26 of the leg parts 20 are respectively exposed are formed in the center part in the front-rear direction of the side walls 48. . The operation hole 50 is formed in a concave shape so as to approach each other in the left-right direction, and the operation portion 26 is formed so as to be exposed in the left-right direction.

嵌合部４０の上面部４５と下面部４６の内面には、挿入口４０ａから連続して、プラグ１２の挿入動作をガイドするガイド溝５６が各々形成されている。ガイド溝５６は、挿入口４０ａから前後方向に設けられ、挿入口４０ａ側が広くラッパ状に形成されて、ガイド部３０が嵌合して前後方向の摺動動作をガイドする。嵌合部４０の上面部４５と下面部４６内の取付部４２寄りの位置には、一対の係合突起２２が係合する一対の被係合部５２が、嵌合部４０内の空間に、互いに対向するように表裏方向に突出して設けられている。各被係合部５２は、係合突起２２の係止段部２２ａが対面して係合する被係止段部５２ａを備え、係止段部２２ａと被係止段部５２ａは、脚部２０の突出方向と直交する面を有して設けられている。各被係合部５２には、前後方向に対して傾斜し互いに取付部４２に向かって近づくように設けられた面である側面部５２ｂが形成されている。側面部５２ｂは、プラグ１２の挿入時に、係合突起２２に当接して、脚部２０を互いに近づける方向に弾性変形させる。 Guide grooves 56 that guide the insertion operation of the plug 12 are formed on the inner surfaces of the upper surface portion 45 and the lower surface portion 46 of the fitting portion 40 continuously from the insertion port 40a. The guide groove 56 is provided in the front-rear direction from the insertion port 40a, the insertion port 40a side is widely formed in a trumpet shape, and the guide portion 30 is fitted to guide the sliding operation in the front-rear direction. A pair of engaged portions 52 to which the pair of engaging protrusions 22 engage is located in a space in the fitting portion 40 at a position near the mounting portion 42 in the upper surface portion 45 and the lower surface portion 46 of the fitting portion 40. , And projecting in the front and back direction so as to face each other. Each engaged portion 52 includes a locked step portion 52a with which the locking step portion 22a of the engaging protrusion 22 faces and engages. The locking step portion 22a and the locked step portion 52a are leg portions. It has 20 surfaces orthogonal to the protruding direction. Each engaged portion 52 is formed with a side surface portion 52 b that is a surface provided so as to be inclined with respect to the front-rear direction and approach each other toward the attachment portion 42. The side surface portion 52b abuts on the engaging protrusion 22 when the plug 12 is inserted, and elastically deforms the leg portion 20 in a direction in which the leg portions 20 approach each other.

下面部４６には、テープ挿通孔４２ａに近接して表裏方向に開口した一対の透孔５４が設けられ、透孔５４の挿入口４０ａ側の縁部が、各被係合部５２の周縁部に面一に連続して設けられている。ソケット１４のテープ挿通孔４２ａ側の端面は、端面壁部６０により閉じているとともに、端面壁部６０の中央部には、テープ挿通孔４２ａと嵌合部４０内を連通した開口部６２が形成されている。開口部６２は、ソケット１４の上面部４５と下面部４６間の幅で前後方向に開口し、左右方向の幅が、一対の透孔５４の互いに対向する内側縁部の間隔より狭く形成されている。 The lower surface portion 46 is provided with a pair of through holes 54 opened in the front and back direction in the vicinity of the tape insertion hole 42 a, and the edge portion of the through hole 54 on the insertion port 40 a side is the peripheral edge portion of each engaged portion 52. Are continuously provided on the same plane. The end surface of the socket 14 on the side of the tape insertion hole 42 a is closed by the end surface wall portion 60, and an opening 62 communicating with the inside of the tape insertion hole 42 a and the fitting portion 40 is formed in the center portion of the end surface wall portion 60. Has been. The opening 62 opens in the front-rear direction with a width between the upper surface portion 45 and the lower surface portion 46 of the socket 14, and the width in the left-right direction is narrower than the interval between the inner edge portions of the pair of through holes 54 facing each other. Yes.

開口部６２には、下面部４６の取付部４２側端縁から凹状に開口凹部５８が連続して形成されている。開口凹部５８は、下面部４６にのみ設けられ、上面部４５の取付部４２側の端部により覆われている。開口凹部５８は、開口部６２の左右方向の幅と等しく形成され、透孔５４間に位置している。従って、各透孔５４と開口凹部５８の間には、下面部４６の一部である側縁部６４が形成されている。また、開口凹部５８の左右方向の幅Ｗ１は、一対の脚部２０の対向する側面間の左右方向の幅Ｗ２の左右方向の幅よりも狭く形成され、開口凹部５８の位置は、一対の脚部２０を、開口凹部５８が形成された下面部４６に投影した箇所の間に設けられている。つまり、図２の背面図に表すように、この実施形態のバックル１０は左右方向に対称に形成され、開口凹部５８は下面部４６の取付部４４側にて、左右方向の中央に形成されており、開口凹部５８の両側に一対の脚部２０が位置している。そして、各透孔５４は、係合突起２２が露出可能な位置に設けられている。なお、この実施形態のバックル１０では、開口凹部５８が下面部４６に形成されるが、開口凹部５８が上面部４５に形成される場合には、開口凹部５８は、一対の脚部２０を上面部４５に投影した箇所の間に設けられる。 An opening recess 58 is continuously formed in the opening 62 in a concave shape from the edge of the lower surface portion 46 on the side of the mounting portion 42. The opening recess 58 is provided only in the lower surface portion 46 and is covered with the end portion of the upper surface portion 45 on the attachment portion 42 side. The opening recess 58 is formed equal to the width of the opening 62 in the left-right direction, and is located between the through holes 54. Therefore, a side edge portion 64 that is a part of the lower surface portion 46 is formed between each through hole 54 and the opening recess 58. Further, the width W1 in the left-right direction of the opening recess 58 is formed to be narrower than the width in the left-right direction of the width W2 in the left-right direction between the opposing side surfaces of the pair of leg portions 20, and the position of the opening recess 58 is the position of the pair of legs. The portion 20 is provided between the portions projected on the lower surface portion 46 in which the opening recess 58 is formed. That is, as shown in the rear view of FIG. 2, the buckle 10 of this embodiment is formed symmetrically in the left-right direction, and the opening recess 58 is formed in the center in the left-right direction on the mounting portion 44 side of the lower surface portion 46. The pair of leg portions 20 are located on both sides of the opening recess 58. Each through hole 54 is provided at a position where the engagement protrusion 22 can be exposed. In the buckle 10 of this embodiment, the opening recess 58 is formed in the lower surface portion 46. However, when the opening recess 58 is formed in the upper surface portion 45, the opening recess 58 has the pair of leg portions 20 on the upper surface. It is provided between the locations projected on the unit 45.

次に、この実施形態のバックル１０の係合動作及び使用方法について以下に説明する。まず、このバックル１０のプラグ１２にテープ部材等を取り付けるには、プラグ１２の取付部２４のテープ挿通孔２４ｂの裏面側から連結用の図示しないテープ部材の端部を挿入し、第２のバー３４の外周を経て、プラグ１２の表面側からテープ挿通孔２４ａに挿入し、テープ挿通孔２４ａの裏面側で自身のテープ部材に重ねられ、長さ調節自在に引き出される。一方、ソケット１４に取り付けられる図示しないテープ部材等は、１本の連結バー４４に調節不能に連結される。 Next, the engaging operation and usage method of the buckle 10 of this embodiment will be described below. First, in order to attach a tape member or the like to the plug 12 of the buckle 10, an end portion of a tape member (not shown) for connection is inserted from the back side of the tape insertion hole 24b of the attachment portion 24 of the plug 12, and the second bar After passing through the outer periphery of 34, it is inserted into the tape insertion hole 24a from the front surface side of the plug 12, overlapped with its own tape member on the back surface side of the tape insertion hole 24a, and pulled out with adjustable length. On the other hand, a tape member (not shown) attached to the socket 14 is non-adjustably connected to one connecting bar 44.

プラグ１２とソケット１４の係合は、図１、図２に示すように、プラグ１２の脚部２０をソケット１４の嵌合部４０の挿入口４０ａに対向させて、プラグ１２をソケット１４内へ押し込む。脚部２０が嵌合部４０内に挿入されると、脚部２０の係合突起２２の外側面が被係合部５２の側面部５２ｂに当接して、一旦脚部２０が互いに近づく方向に弾性変形しながら挿入される。さらにプラグ１２を押し込むと、側面部５２ｂから係合突起２２が離れて弾性変形した一対の脚部２０が元に戻り、一対の脚部２０の係合突起２２の係止段部２２ａが、各々被係合部５２の被係止段部５２ａに対面して、係合突起２２と被係合部５２が互いに係合する。 As shown in FIGS. 1 and 2, the plug 12 and the socket 14 are engaged with each other with the leg portion 20 of the plug 12 facing the insertion port 40 a of the fitting portion 40 of the socket 14, and the plug 12 is moved into the socket 14. Push in. When the leg portion 20 is inserted into the fitting portion 40, the outer surface of the engaging protrusion 22 of the leg portion 20 comes into contact with the side surface portion 52b of the engaged portion 52, and the leg portions 20 once approach each other. Inserted while elastically deforming. When the plug 12 is further pushed in, the pair of leg portions 20 which are elastically deformed by separating the engagement projections 22 from the side surface portions 52b return to the original, and the locking step portions 22a of the engagement projections 22 of the pair of leg portions 20 are respectively The engaging protrusion 22 and the engaged portion 52 engage with each other so as to face the locked stepped portion 52 a of the engaged portion 52.

プラグ１２のソケット１４への挿入時に、ソケット１４内にゴミや雪等の異物が入っていた場合も、プラグ１２の挿入動作に伴ってソケット１４内の異物が、テープ挿通孔４２ａに連通した開口凹部５８及び開口部６２から排出される。 Even when foreign matter such as dust or snow is contained in the socket 14 when the plug 12 is inserted into the socket 14, the foreign matter in the socket 14 is communicated with the tape insertion hole 42a as the plug 12 is inserted. It is discharged from the recess 58 and the opening 62.

プラグ１２とソケット１４との連結を解除するには、一対の操作部２６を外側方から押圧して、プラグ１２の係合突起２２をソケット１４の被係合部５２と対面しない位置に弾性変形させる。この状態で、プラグ１２とソケット１４が互いに離れる方向に僅かに相対的に移動させると、脚部２０の弾性力により、係合突起２２が被係合部５２の側面部５２ｂに沿って係合位置から押し出されるように離れる。これにより、容易に係合が解除される。 In order to release the connection between the plug 12 and the socket 14, the pair of operation portions 26 are pressed from the outside, and the engagement protrusion 22 of the plug 12 is elastically deformed to a position not facing the engaged portion 52 of the socket 14. Let In this state, when the plug 12 and the socket 14 are slightly moved in a direction away from each other, the engagement protrusion 22 is engaged along the side surface portion 52 b of the engaged portion 52 by the elastic force of the leg portion 20. Leave to be pushed out of position. As a result, the engagement is easily released.

さらに、プラグ１２とソケット１４の係合状態で、開口凹部５８や開口部６２から雪等の異物が入る場合も、プラグ１２の一対の脚部２０の係合突起２２は、開口凹部５８から側縁部６４を挟んで形成されているので、雪等の異物は側縁部６４の幅だけ係合突起２２間に入る量が減る。これにより、プラグ１２の係合解除操作に際して、脚部２０が互いに近づく方向への揺動が、側縁部６４の幅の分だけ容易に可能であり、係合解除動作を確実に行うことができる。 Furthermore, even when foreign matter such as snow enters from the opening recess 58 or the opening 62 in the engaged state of the plug 12 and the socket 14, the engagement protrusions 22 of the pair of leg portions 20 of the plug 12 are on the side from the opening recess 58. Since the edges 64 are formed, the amount of foreign matters such as snow entering between the engaging protrusions 22 is reduced by the width of the side edges 64. As a result, when the plug 12 is disengaged, the legs 20 can be easily swung in the direction in which the legs 20 approach each other, and the disengagement operation can be reliably performed. it can.

この実施形態のバックル１０によれば、テープ挿通孔４２ａに連通した開口凹部５８及び開口部６２がソケット１４に設けられているので、プラグ１２の挿入時に、ソケット１４内に入り込んでいた雪やゴミ等の異物が容易に排出され、プラグ１２とソケット１４の係合動作を確実に行うことができる。さらに、プラグ１２とソケット１４の係合状態で、開口凹部５８や開口部６２から雪等の異物が侵入した場合も、プラグ１２の一対の脚部２０の係合突起２２間は、側縁部６４の幅の分だけ異物が入り難く、プラグ２０の揺動スペースが形成され、係合解除動作も確実に行うことができる。 According to the buckle 10 of this embodiment, since the opening recess 58 and the opening 62 communicating with the tape insertion hole 42 a are provided in the socket 14, snow and dust that have entered the socket 14 when the plug 12 is inserted. Thus, the plug 12 and the socket 14 can be reliably engaged with each other. Further, even when foreign matter such as snow enters from the opening recess 58 or the opening 62 in the engaged state of the plug 12 and the socket 14, the gap between the engagement protrusions 22 of the pair of leg portions 20 of the plug 12 is not limited to the side edge portion. Foreign matter is less likely to enter by the width of 64, a rocking space for the plug 20 is formed, and the engagement releasing operation can be performed reliably.

次に、この発明の第二実施形態について図１４〜図１６に基づいて説明する。なお、ここで、上記実施形態と同様の部材は同様の符号を付して説明を省略する。この実施形態のバックル７０は、テープ挿通孔４２ａに連通した開口凹部７２が、下面部４６の前後方向の中央部よりも挿入口４０ａ側に延びて形成されたものである。開口凹部７２は、テープ挿通孔４２ａに向かって僅かに広がるように台形状の形状に設けられ、台形の下底部分が、ソケット１４の端面の開口部６２に連通している。 Next, a second embodiment of the present invention will be described with reference to FIGS. Here, the same members as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted. In the buckle 70 of this embodiment, an opening recess 72 communicating with the tape insertion hole 42a is formed so as to extend to the insertion port 40a side from the center portion of the lower surface portion 46 in the front-rear direction. The opening recess 72 is provided in a trapezoidal shape so as to slightly expand toward the tape insertion hole 42 a, and the lower bottom portion of the trapezoid communicates with the opening 62 on the end surface of the socket 14.

この発明のバックル７０によれば、上記実施形態と同様の作用効果を有し、ソケット１４内に雪等の異物がある場合もプラグ１２の挿入がより容易であり、プラグ１２の係合解除動作も確実に行うことができる。 According to the buckle 70 of the present invention, the plug 12 can be easily inserted even when there is foreign matter such as snow in the socket 14, and the plug 12 can be disengaged. Can also be done reliably.

次に、この発明の第三実施形態について図１７〜図１９に基づいて説明する。なお、ここで、上記実施形態と同様の部材は同様の符号を付して説明を省略する。この実施形態のバックル７４は、ソケット１４のテープ挿通孔４２ａ側の端面全面がテープ挿通孔４２ａに開口し、開口部７８が形成され、開口部７８の側端縁から凹状に開口凹部７６が連続して形成されている。開口部７８は、左右方向の両端縁部７８ａを残して、ソケット１４のテープ挿通孔４２ａ側のほぼ端面全面に開口しているので、ソケット１４内の脚部２０の係合突起２２の先端が、開口部７８に露出している。開口部７８の左右方向の幅は、一対の透孔５４の開口凹部７６側の側縁間の間隔より広く形成されている。 Next, a third embodiment of the present invention will be described with reference to FIGS. Here, the same members as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted. In the buckle 74 of this embodiment, the entire end surface of the socket 14 on the side of the tape insertion hole 42 a is opened to the tape insertion hole 42 a, an opening 78 is formed, and the opening recess 76 is continuously concaved from the side edge of the opening 78. Is formed. Since the opening 78 opens to substantially the entire end surface of the socket 14 on the tape insertion hole 42a side, leaving both edge portions 78a in the left-right direction, the tip of the engagement protrusion 22 of the leg portion 20 in the socket 14 is formed. , Exposed to the opening 78. The width of the opening 78 in the left-right direction is wider than the distance between the side edges of the pair of through-holes 54 on the opening recess 76 side.

この発明のバックル７４によれば、上記実施形態と同様の作用効果を有し、ソケット１４のテープ挿通孔４２ａ側の端面全面がテープ挿通孔４２ａに開口して開口部７８が形成されているので、ソケット１４内に雪等の異物がある場合もプラグ１２の挿入がより容易であり、プラグ１２の係合解除動作も確実に行うことができる。 According to the buckle 74 of the present invention, the same effect as the above embodiment is obtained, and the entire end surface of the socket 14 on the tape insertion hole 42a side is opened to the tape insertion hole 42a, so that the opening 78 is formed. Even when there is foreign matter such as snow in the socket 14, the plug 12 can be inserted more easily, and the engagement release operation of the plug 12 can be performed reliably.

次に、この発明の第四実施形態について図２０〜図２２に基づいて説明する。なお、ここで、上記実施形態と同様の部材は同様の符号を付して説明を省略する。この実施形態のバックル８０は、テープ挿通孔４２ａに連通した開口凹部８２が、下面部４６の前後方向の中央部よりも挿入口４０ａ側に延びて形成されたものである。開口凹部８２は、テープ挿通孔４２ａに向かって長方形状に設けられ、長方形の短辺部分が、ソケット１４の端面の開口部６２に連通している。 Next, a fourth embodiment of the present invention will be described with reference to FIGS. Here, the same members as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted. In the buckle 80 of this embodiment, an opening recess 82 communicating with the tape insertion hole 42a is formed so as to extend to the insertion port 40a side from the center portion of the lower surface portion 46 in the front-rear direction. The opening recess 82 is provided in a rectangular shape toward the tape insertion hole 42 a, and a short side portion of the rectangle communicates with the opening 62 on the end surface of the socket 14.

この発明のバックル８０によれば、上記実施形態と同様の作用効果を有し、ソケット１４内に雪等の異物がある場合もプラグ１２の挿入がより容易であり、プラグ１２の係合解除動作も確実に行うことができる。 According to the buckle 80 of the present invention, the plug 12 can be easily inserted even when there is foreign matter such as snow in the socket 14, and the plug 12 can be disengaged. Can also be done reliably.

なお、この発明のバックルは、上記各実施形態に限定されるものではなく、ソケットのテープ挿通孔側の端面に形成された開口部や凹状の開口凹部は、ソケットの下面部以外に上面部に形成されていても良く、両方に設けられていても良い。開口部や開口凹部の大きさや形状も適宜設定可能なものであり、ソケットの端面部分と下面部等で連通して、開口部と開口凹部が形成されていれば良い。一対の透孔も、上面部に形成されていても良く、下面部と上面部の両方に形成されていても良い。さらに、一対の透孔は、開口凹部と各々所定幅の側縁部を挟んで形成されていれば良く、側縁部の幅も適宜設定し得るものである。また、脚部に設けられた係合部は、脚部の先端部以外の基端側に設けられ、ソケットの被係合部が、側壁部の内側に設けられたバックルにも適用可能である。 The buckle of the present invention is not limited to the above embodiments, and the opening and the concave opening recess formed on the end surface of the socket on the tape insertion hole side are on the upper surface portion other than the lower surface portion of the socket. It may be formed, and may be provided in both. The size and shape of the opening and the opening recess can also be set as appropriate, and it is only necessary that the opening and the opening recess are formed by communicating with the end surface portion and the lower surface of the socket. The pair of through holes may also be formed in the upper surface part, or may be formed in both the lower surface part and the upper surface part. Further, the pair of through holes may be formed so as to sandwich the opening concave portion and the side edge portions each having a predetermined width, and the width of the side edge portion can be set as appropriate. Moreover, the engaging part provided in the leg part is provided in the base end side other than the front-end | tip part of a leg part, and the to-be-engaged part of a socket is applicable also to the buckle provided in the inner side of the side wall part. .

１０，７０，７４，８０バックル
１２プラグ
１４ソケット
２０脚部
２２係合突起
２４，４２取付部
２４ａ，２４ｂ，４２ａテープ挿通孔
４０嵌合部
４０ａ挿入口
４４連結バー
４５上面部
４６下面部
５０操作孔
５２被係合部
５４透孔
５８，７２，７６，８２開口凹部
６０端面壁部
６２，７８開口部
６４側縁部 10, 70, 74, 80 Buckle 12 Plug 14 Socket 20 Leg portion 22 Engagement protrusions 24, 42 Mounting portions 24a, 24b, 42a Tape insertion hole 40 Fitting portion 40a Insertion port 44 Connecting bar 45 Upper surface portion 46 Lower surface portion 50 Operation Hole 52 Engaged portion 54 Through hole 58, 72, 76, 82 Opening recess 60 End surface wall portion 62, 78 Opening 64 Side edge

Claims

互いに連結可能で、各々所定の部材に取り付けられる取付部（２４、４２）を有するプラグ（１２）とソケット（１４）から成り、
前記プラグ（１２）は、一対の脚部（２０）を備え、前記一対の脚部（２０）の先端部（２０ａ）寄りの位置に各々係合部（２２）が形成され、
前記ソケット（１４）は、上面部（４５）と下面部（４６）が互いに間隔を空けて対面するとともに、前記上面部（４５）と前記下面部（４６）の端部に前記プラグ（１２）が挿入可能な挿入口（４０ａ）を有し、前記上面部（４５）と前記下面部（４６）間の空間により前記挿入口（４０ａ）から連続する嵌合部（４０）が形成され、前記嵌合部（４０）を形成した前記上面部（４５）の内面と前記下面部（４６）の内面の少なくとも一方に、前記係合部（２２）が係合する一対の被係合部（５２）を備え、
前記ソケット（１４）の前記取付部（４２）側の、前記上面部（４５）と前記下面部（４６）間に、前記嵌合部（４０）に連通し前記挿入口（４０ａ）に対向する開口部（６２，７８）が形成され、
前記上面部（４５）と前記下面部（４６）の少なくとも一方の前記取付部（４２）側で、かつ左右方向の中央部に、前記開口部（６２，７８）に連通するとともに表裏方向に貫通した開口凹部（５８，７２，７６，８２）が形成され、
前記開口凹部（５８，７２，７６，８２）の左右方向の幅は、前記一対の脚部（２０）の互いに対向する側面間の左右方向の間隔よりも狭く形成されていることを特徴とするバックル。 It consists of a plug (12) and a socket (14) that can be connected to each other and each have a mounting portion (24, 42) attached to a predetermined member,
The plug (12) includes a pair of leg portions (20), and engaging portions (22) are formed at positions close to the distal end portions (20a) of the pair of leg portions (20),
The socket (14) has an upper surface portion (45) and a lower surface portion (46) facing each other with a space therebetween, and the plug (12) at the end of the upper surface portion (45) and the lower surface portion (46). Has an insertion port (40a) into which a fitting portion (40) continuous from the insertion port (40a) is formed by a space between the upper surface portion (45) and the lower surface portion (46), A pair of engaged parts (52) with which the engaging part (22) engages with at least one of the inner surface of the upper surface part (45) and the inner surface of the lower surface part (46) forming the fitting part (40). )
Between the upper surface part (45) and the lower surface part (46) on the mounting part (42) side of the socket (14), it communicates with the fitting part (40) and faces the insertion port (40a). Openings (62, 78) are formed;
At least one of the upper surface portion (45) and the lower surface portion (46) on the attachment portion (42) side and in the center in the left-right direction, communicates with the opening portions (62, 78) and penetrates in the front-back direction. Open recesses (58, 72, 76, 82) formed,
The width of the opening recess (58, 72, 76, 82) in the left-right direction is narrower than the distance in the left-right direction between the opposing side surfaces of the pair of leg portions (20). buckle.

前記ソケット（１４）は、前記上面部（４５）および前記下面部（４６）の少なくとも一方に、表裏方向に開口し一対の前記被係合部（５２）から各々連続した一対の透孔（５４）を備え、
前記開口凹部（５８，７２，７６，８２）は、一対の前記透孔（５４）の間に形成され、前記透孔（５４）と前記開口凹部（５８，７２，７６，８２）の間に、前記上面部（４５）または前記下面部（４６）の一部で形成された側縁部（６４）が設けられている請求項１記載のバックル。 The socket (14) has a pair of through-holes (54) that open in the front and back direction and are continuous from the pair of engaged portions (52) in at least one of the upper surface portion (45) and the lower surface portion (46). )
The opening recess (58, 72, 76, 82) is formed between a pair of the through holes (54), and between the through hole (54) and the opening recess (58, 72, 76, 82). The buckle according to claim 1, further comprising a side edge portion (64) formed by a part of the upper surface portion (45) or the lower surface portion (46).

前記開口凹部（５８，７２，７６，８２）は、前記上面部（４５）と前記下面部（４６）の一方に形成され、前記上面部（４５）と前記下面部（４６）の他方の、前記取付部（４２）側の端部により前記開口凹部（５８，７２，７６，８２）が覆われている請求項１または２記載のバックル。 The opening recess (58, 72, 76, 82) is formed in one of the upper surface portion (45) and the lower surface portion (46), and the other of the upper surface portion (45) and the lower surface portion (46), The buckle according to claim 1 or 2, wherein the opening concave portion (58, 72, 76, 82) is covered with an end portion on the attachment portion (42) side.

前記嵌合部（４０）の前記取付部（４２）側の端面に端面壁部（６０）が設けられ、前記開口部（６２）は前記端面壁部（６０）に形成されている請求項２記載のバックル。 The end face wall (60) is provided on the end face of the fitting part (40) on the attachment part (42) side, and the opening (62) is formed in the end face wall part (60). The listed buckle.

前記開口部（６２）は、左右方向の幅が前記一対の透孔（５４）の前記開口凹部（５８）側の側縁間の間隔より狭く形成されている請求項２記載のバックル。 The buckle according to claim 2, wherein the opening (62) has a width in the left-right direction that is narrower than a distance between side edges of the pair of through holes (54) on the opening recess (58) side.

前記開口部（７８）は、左右方向の幅が前記一対の透孔（５４）の前記開口凹部（７６）側の側縁間の間隔より広く形成されている請求項２記載のバックル。 The buckle according to claim 2, wherein the opening (78) has a width in the left-right direction that is wider than a distance between side edges of the pair of through holes (54) on the opening recess (76) side.

前記プラグ（１２）は、一対の脚部（２０）の間に前後方向に突出したガイド部（３０）を有し、
前記プラグ（１２）と前記ソケット（１４）が係合した状態で、前記ガイド部（３０）の先端は、前記開口凹部（５８）の前記挿入口（４０ａ）側の端縁に位置する請求項１記載のバックル。 The plug (12) has a guide part (30) protruding in the front-rear direction between the pair of leg parts (20),
The tip of the guide part (30) is located at an edge of the opening recess (58) on the insertion port (40a) side in a state where the plug (12) and the socket (14) are engaged. The buckle according to 1.

前記端面壁部（６０）は、前記側縁部（６４）の前記取付部（４２）側の端縁にて、前記上面部（４５）および前記下面部（４６）を連結して形成されている請求項４記載のバックル。 The end surface wall portion (60) is formed by connecting the upper surface portion (45) and the lower surface portion (46) at the edge of the side edge portion (64) on the mounting portion (42) side. The buckle according to claim 4.

前記開口部（６２，７８）は、前記嵌合部（４０）の表裏面間の幅全体にわたって開口している請求項１記載のバックル。 The buckle according to claim 1, wherein the opening (62, 78) opens over the entire width between the front and back surfaces of the fitting portion (40).