JP7233093B2 - band clasp - Google Patents

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JP7233093B2
JP7233093B2 JP2019110231A JP2019110231A JP7233093B2 JP 7233093 B2 JP7233093 B2 JP 7233093B2 JP 2019110231 A JP2019110231 A JP 2019110231A JP 2019110231 A JP2019110231 A JP 2019110231A JP 7233093 B2 JP7233093 B2 JP 7233093B2
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engaging
box
band
piece
upper member
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JP2020199207A (en
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勝也 篠木
武 平岡
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株式会社和久元
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Description

本発明は、装身具の本体の一端側に取り付けられた一方のバンドと本体の他端側に取り付けられた他方のバンドとを接続するバンド用留め具に関する。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a band fastener that connects one band attached to one end of a body of an accessory and the other band attached to the other end of the body.

身体の一部(例えば、腕や足首や首回り)に巻回されて装着される装身具では、その装身具の本体に装身用の一対のバンドが取り付けられており、この一対のバンドの一方のバンドと他方のバンドとはバンド用留め具によって接続されている。この種の装身具の本体としてはアナログ式やデジタル式の時計本体が一般的に知られているが、近年では、電話、歩数計、位置情報モニタ(GPS本体)、デジタル音楽プレーヤ、心拍数モニタといった各種のウェラブル情報端末も知られている。 An accessory that is wrapped around a part of the body (for example, an arm, an ankle, or around the neck) has a pair of bands attached to the main body of the accessory. The band and the other band are connected by a band fastener. Analog and digital watch bodies are generally known as the body of this type of accessory, but in recent years, telephones, pedometers, location information monitors (GPS bodies), digital music players, and heart rate monitors have been used. Various wearable information terminals are also known.

この種の装身具のバンド用留め具の一例として、例えば特許文献1に記載された中留構造10(以下では、バンド用留め具という)が知られている。このバンド用留め具は、時計用のバンドに用いられ、下板20と中板30と中箱40と上箱50を有している。下板20は一方の皮革バンド80に接続し、上箱50は他方の皮革バンド81に接続し、中板30は下板20と上箱50とを接続し、下板20、中板30及び上箱50はこの順で折り畳み可能に形成されている。中板30と上箱50が折り畳まれた状態で、中箱40は中板30と上箱50との間に位置している。また、下板20には、中箱40との係止用の係止用突起部21が突設されており、中箱40内には、係止用突起部21に係止可能な係合部を有する一対の係止片(以下では、一対の係合部材という)が設けられている。この一対の係合部材のそれぞれの一端部に係合部が形成され、一対の係合部材のそれぞれの他端部には中箱40の外方から押圧されるプッシュボタン41,41(以下では、一対の押圧片という)が係合部材と一体的に形成されている。また、一対の係合部材の一端部側の部位は中箱40内で摺動可能にガイドされていると共に薄板状に形成されている。そして、一対の係合部材は、一対の押圧片が押圧されることにより、係止用突起部21と係合部との係合が解除されるように構成されている。また、一対の係合部材の一端部は、具体的には特許文献2に開示されているようにそれぞれ鉤状に屈曲するように形成されている。そして、特許文献1に記載された他方の皮革バンド81には複数の尾錠孔82が形成されており、上箱50には他方の皮革バンド81を挿通可能な挿通口と尾錠孔82に挿入(係合)可能なツク棒51とが形成されている。つまり、特許文献1に記載されたバンド用留め具は、いわゆる尾錠タイプのバンドに用いられるものである。係止用突起部21が一対の係合部材の係合部に係合し、他方の皮革バンド81が上箱50の挿通口に挿通され、且つ、上箱50のツク棒51が他方の皮革バンド81のいずれかの尾錠孔82に挿入されることによって、手首への装身具の装着が完了する。ここで、装身具の装着完了後、一対の押圧片41,41が指等により押圧操作されると、係止用突起部21と係合部との係合が解除される。そして、この状態でそのまま中箱40がつまみ上げられると、中板30が展開される。これにより、皮革バンド81,81の手首への締め付けが緩むと共に皮革バンド81,81とバンド用留め具により形成される環状体が拡径され、手首を環状体内から抜き出すことができる。 As an example of a band fastener for this type of accessory, for example, a clasp structure 10 (hereinafter referred to as a band fastener) described in Patent Document 1 is known. This band fastener is used for a watch band and has a lower plate 20, an intermediate plate 30, an inner case 40 and an upper case 50. - 特許庁The lower plate 20 connects to one leather band 80, the upper case 50 connects to the other leather band 81, the middle plate 30 connects the lower plate 20 and the upper case 50, the lower plate 20, the middle plate 30 and The upper box 50 is formed so as to be foldable in this order. The middle box 40 is positioned between the middle plate 30 and the top box 50 in a state where the middle plate 30 and the top box 50 are folded. Further, the lower plate 20 is provided with a locking protrusion 21 for locking with the inner box 40 . A pair of locking pieces (hereinafter referred to as a pair of engaging members) having portions are provided. An engaging portion is formed at one end of each of the pair of engaging members, and push buttons 41, 41 (hereinafter referred to as push buttons 41) which are pressed from the outside of the inner box 40 are provided at the other end of each of the pair of engaging members. , a pair of pressing pieces) are integrally formed with the engaging member. Also, the portions on the one end side of the pair of engaging members are slidably guided within the inner box 40 and formed in the shape of a thin plate. The pair of engaging members is configured such that the engagement between the locking protrusion 21 and the engaging portion is released by pressing the pair of pressing pieces. Further, one ends of the pair of engaging members are each formed to be bent like a hook as specifically disclosed in Patent Document 2. A plurality of buckle holes 82 are formed in the other leather band 81 described in Patent Document 1, and the other leather band 81 is inserted into the insertion opening through which the other leather band 81 can be inserted and the buckle hole 82 in the upper case 50 ( An engageable hook 51 is formed. That is, the band fastener described in Patent Document 1 is used for a so-called buckle type band. The locking protrusion 21 is engaged with the engaging portions of the pair of engaging members, the other leather band 81 is inserted through the insertion opening of the upper case 50, and the hook 51 of the upper case 50 is engaged with the other leather. By inserting the accessory into one of the buckle holes 82 of the band 81, attachment of the accessory to the wrist is completed. Here, when the pair of pressing pieces 41, 41 are pressed by a finger or the like after the attachment of the accessory is completed, the engagement between the locking protrusion 21 and the engaging portion is released. When the inner box 40 is picked up in this state, the inner plate 30 is unfolded. As a result, the tightening of the leather bands 81, 81 to the wrist is loosened, and the annular body formed by the leather bands 81, 81 and the band fastener is expanded in diameter, allowing the wrist to be extracted from the annular body.

特開2008-061842号公報JP 2008-061842 A 特開2008-183213号公報JP 2008-183213 A

ここで、係止用突起部21と係合部との係合解除後、上箱50のツク棒51が他方の皮革バンド81の尾錠孔82に挿入されている状態において、手首を前述の環状体内に挿入し、装身具を手首に再装着する場合がある。この場合、一対の押圧片41,41を押圧するのではなく、上箱50を中箱40側に強く押圧することにより、ツク棒51と係合部とを係合させようと操作することが想定される。つまり、上箱50を強く押圧して中箱40内の係合部をツク棒51に強く押し付けることによって、一対の係合部材を係合解除方向(開方向)に移動させようと操作することが想定される。このように上箱50が押圧操作されると、上箱50が一対の係合部材の押圧片41,41に直接的に当接し、一対の係合部材の動きが鈍くなり、ツク棒51と係合部との係合が上手くできないおそれがあり、その工夫が求められている。 Here, after the locking projection 21 and the engagement portion are disengaged, the hook 51 of the upper case 50 is inserted into the buckle hole 82 of the leather band 81 on the other side, and the wrist is held in the above-mentioned annular loop. It may be inserted into the body and reattached to the wrist. In this case, instead of pressing the pair of pressing pieces 41, 41, the upper box 50 can be strongly pressed toward the inner box 40 to engage the hook 51 with the engaging portion. is assumed. In other words, by strongly pressing the upper case 50 and strongly pressing the engaging portion in the inner case 40 against the pick rod 51, the pair of engaging members are operated to move in the disengagement direction (opening direction). is assumed. When the upper case 50 is pressed in this manner, the upper case 50 directly abuts against the pressing pieces 41, 41 of the pair of engaging members, slowing the movement of the pair of engaging members. There is a possibility that the engagement with the engaging portion may not be successful, and a device for this is required.

そこで、本発明は、再装着時の操作性を向上させることができるバンド用留め具を提供することを目的とする。 SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a band fastener capable of improving operability at the time of reattachment.

本発明の一側面によると、装身具の本体の一端側に取り付けられた一方のバンドと本体の他端側に取り付けられた他方のバンドとを接続するバンド用留め具が提供される。バンド用留め具は、留め具本体と箱体と係合機構とを含む。留め具本体は、一方のバンドに接続する下部材と、他方のバンドに接続する上部材と、下部材と上部材とを接続する中部材とを有し、下部材、中部材及び上部材の順で折り畳み可能に形成される。箱体は、中部材と上部材が折り畳まれた状態で中部材と上部材との間に位置するように配置されており、そのバンドの幅方向の両端部にそれぞれ開口部が形成される。係合機構は、突起部と一対の係合部材とを有する。突起部は、下部材における一方のバンド側の所定部位に突設されると共に下部材と中部材が折り畳まれた状態で箱体内に貫入可能な頭部を有する。一対の係合部材は、箱体内にて頭部に係脱自在に係合可能な係合部を協働して形成する。係合機構は、一対の係合部材が押圧操作されると係合部と頭部との係合を解除可能に構成されている。一対の係合部材の一方は、箱体の一方の開口部側にて外方に位置して押圧操作される第1押圧片を有する。一対の係合部材の他方は、箱体の他方の開口部側にて外方に位置して押圧操作される第2押圧片を有する。箱体における長手方向の一端部は中部材における上部材側の端部に回動可能に接続されると共に、箱体の一端部における幅方向の長さが上部材の挿通口部の内側の幅より小さく設定されている。第1押圧片及び第2押圧片は、箱体における長手方向の他端部側に寄せて配置されている。箱体の幅方向の両端部の他端部側における箱体の回動方向についての上部材側の各部位には、それぞれ幅方向の外方に張り出す張出部が形成されている。 According to one aspect of the present invention, there is provided a band fastener that connects one band attached to one end of a body of an accessory and the other band attached to the other end of the body. The band fastener includes a fastener body, a box and an engagement mechanism. The fastener main body has a lower member connected to one band, an upper member connected to the other band, and an intermediate member connecting the lower member and the upper member. in order to be foldable. The box body is arranged so as to be positioned between the middle member and the upper member in a state in which the middle member and the upper member are folded, and openings are formed at both ends in the width direction of the band. The engagement mechanism has a protrusion and a pair of engagement members. The projection has a head that protrudes from a predetermined portion on one band side of the lower member and can be inserted into the box body in a state in which the lower member and the intermediate member are folded. The pair of engaging members cooperate to form an engaging portion removably engageable with the head within the box. The engaging mechanism is configured to be able to release the engagement between the engaging portion and the head when the pair of engaging members are pressed. One of the pair of engaging members has a first pressing piece that is positioned outward on one opening side of the box and is pressed. The other of the pair of engaging members has a second pressing piece that is positioned outward on the other opening side of the box and is pressed. One end of the box in the longitudinal direction is rotatably connected to the end of the middle member on the side of the upper member, and the length of the one end of the box in the width direction is the width of the inner side of the insertion opening of the upper member. set smaller. The first pressing piece and the second pressing piece are arranged closer to the other end in the longitudinal direction of the box. Protruding portions protruding outward in the width direction are formed at respective portions on the side of the upper member in the rotating direction of the box on the other end side of both ends in the width direction of the box.

本発明の一側面によるバンド用の留め具によれば、箱体の幅方向の両端部の他端部側における箱体の回動方向についての上部材側の各部位には、それぞれ幅方向の外方に張り出す張出部が形成されている。これにより、仮に上部材を強く押圧することによって係合部と突起部とを係合させようと操作されたとしても、上部材は第1押圧片及び第2押圧片ではなく、張出部に当接(接触)することになり、第1押圧片及び第2押圧片への上部材の当接が防止される。その結果、箱体内の係合部が突起部に押し付けられているときにおいて、一対の係合部材の係合の解除方向(開方向)へ移動がスムーズになり、係合部と突起部との係合がスムーズに行われる。このようにして、再装着時における操作性を向上させることができるバンド用留め具を提供することができる。 According to a fastener for a band according to one aspect of the present invention, each part on the side of the upper member in the rotating direction of the box on the other end side of both ends in the width direction of the box has widthwise directions. An outward projecting portion is formed. As a result, even if the upper member is strongly pressed to engage the engaging portion with the protrusion, the upper member is not pressed by the first pressing piece and the second pressing piece, but by the protruding portion. The upper member is prevented from contacting the first pressing piece and the second pressing piece. As a result, when the engaging portion in the box is pressed against the protrusion, the pair of engaging members can be smoothly moved in the disengagement direction (opening direction), so that the engaging portion and the protrusion are separated. Engagement is smooth. In this way, it is possible to provide a band fastener that can improve operability when reattached.

本発明の一実施形態におけるバンド用留め具の側面図である。1 is a side view of a band clasp in one embodiment of the invention; FIG. 留め具本体が展開された状態のバンド用留め具の側面図を示す。FIG. 10B shows a side view of the band fastener with the fastener body deployed. バンド留め具を内側(身体側)から視た図である。It is the figure which looked the band fastener from the inside (body side). 留め具本体の上部材の裏面図である。It is a back view of the upper member of a fastener main body. バンド用留め具の箱体と係合機構の一部の組立体の裏面図である。FIG. 11 is a rear view of the assembly of a portion of the box of the band fastener and the engagement mechanism; 図5に示すA方向から視た組立体の側面図である。FIG. 6 is a side view of the assembly viewed from direction A shown in FIG. 5; 箱体の裏面図である。It is a back view of a box. 図7に示すB方向から視た箱体の側面図である。FIG. 8 is a side view of the box viewed from the B direction shown in FIG. 7; 図7に示すC方向から視た箱体の側面図である。FIG. 8 is a side view of the box viewed from direction C shown in FIG. 7 ; 係合機構の第1係合部材(一対の係合部材の一方)の平面図である。4 is a plan view of a first engaging member (one of a pair of engaging members) of the engaging mechanism; FIG. 図10に示すD方向から視た第1係合部材の側面図である。FIG. 11 is a side view of the first engaging member viewed from direction D shown in FIG. 10; 係合機構の第2係合部材(一対の係合部材の他方)の平面図である。FIG. 4 is a plan view of a second engaging member (the other of the pair of engaging members) of the engaging mechanism; 図12に示すF方向から視た第2係合部材の側面図である。FIG. 13 is a side view of the second engaging member viewed from direction F shown in FIG. 12; 図10に示すE-E矢視及び図12に示すG-G矢視の部分断面図である。FIG. 13 is a partial cross-sectional view taken along the line EE shown in FIG. 10 and along the line GG shown in FIG. 12; バンド用留め具の着脱時の動作の一例を説明するための概念図である。FIG. 4 is a conceptual diagram for explaining an example of the operation when attaching and detaching the band fastener; 図15に続く動作の一例を説明するための概念図である。FIG. 16 is a conceptual diagram for explaining an example of the operation following FIG. 15; 張出部を有さない別のバンド用留め具における再装着時の動作の一例を説明するための概念図である。FIG. 11 is a conceptual diagram for explaining an example of the operation at the time of reattaching another band fastener that does not have an overhang.

以下、本発明に係るバンド用留め具の実施形態について、添付図面を参照して説明する。
本発明に係るバンド用留め具は、腕や足首といった身体の一部に巻回されて装着される装身具に用いられるものであり、装身具の本体に取り付けられた一対のバンドの留め具である。装身具の本体としては、腕時計の時計本体や、電話、歩数計といった各種のウェラブル情報端末が挙げられるが、以下では、腕時計の時計本体に適用する場合を一例に挙げて説明する。
BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a band fastener according to the present invention will be described below with reference to the accompanying drawings.
INDUSTRIAL APPLICABILITY A band fastener according to the present invention is used for an accessory that is worn around a part of the body such as an arm or an ankle, and is a pair of band fasteners attached to the main body of the accessory. Examples of the body of the accessory include a watch body of a wristwatch, and various wearable information terminals such as a telephone and a pedometer. Below, an example of application to a watch body of a wristwatch will be described.

図1~図3は本実施形態におけるバンド用留め具1の概略構成を説明するための図である。図1はバンド用留め具1の側面図であり、その留め具本体2が折り畳まれる途中の状態の一例が示されており、図2は留め具本体2が展開された状態の一例を示しており、図3はバンド用留め具1を内側(身体側)から視た図であり、留め具本体2が完全に展開された状態が示されている。バンド用留め具1は、装身具としての腕時計の本体である時計本体(図示省略)に取り付けられたバンドX用の留め金具である。バンドXは時計本体の一端側に取り付けられた一方のバンドと時計本体の他端側に取り付けられた他方のバンドとからなり、バンド用留め具1は一方のバンドと他方のバンドとを接続するための留め金具である。以下では、一方のバンドを第1バンドX1と呼び、他方のバンドを第2バンドX2と呼ぶ。 1 to 3 are diagrams for explaining a schematic configuration of a band fastener 1 according to this embodiment. FIG. 1 is a side view of the band fastener 1, showing an example of a state in which the fastener body 2 is being folded, and FIG. 2 shows an example of a state in which the fastener body 2 is unfolded. FIG. 3 is a view of the band fastener 1 as seen from the inside (body side), showing a state in which the fastener main body 2 is completely unfolded. The band fastener 1 is a fastener for a band X attached to a watch main body (not shown), which is a main body of a wristwatch as an accessory. The band X consists of one band attached to one end side of the watch body and the other band attached to the other end side of the watch body, and a band fastener 1 connects one band and the other band. It is a fastener for One band is hereinafter referred to as the first band X1, and the other band is referred to as the second band X2.

[バンド]
図1~図3に示すように、本実施形態では、第1バンドX1及び第2バンドX2からなるバンドXは皮革製の部材により、所定の幅を有して帯状に形成されている。本実施形態では、バンドXは、バンド用留め具1により、第1バンドX1における時計本体と反対側の一端部と第2バンドX2における時計本体と反対側の一端部との間を着脱自在に接続されると共に、これらの端部間の長さを調整可能に構成されたいわゆる尾錠タイプのバンドである。第1バンドX1の一端部は留め具本体2の一端部に回動可能に接続されており、第2バンドX2の一端部は留め具本体2の他端部に着脱自在に接続される。第2バンドX2の一端部には、その長手方向Lに間隔を空けて複数の孔X2aが形成されている。複数の孔X2aのいずれかに後述する上部材22に形成される係合ピン22bが挿入されて係合することにより、第2バンドX2の一端部が留め具本体2の他端部に第1バンドX1の一端部との間の長さを調整可能に接続される。
[band]
As shown in FIGS. 1 to 3, in this embodiment, the band X consisting of the first band X1 and the second band X2 is formed in a belt shape with a predetermined width by a member made of leather. In this embodiment, the band X is detachable between one end of the first band X1 on the side opposite to the watch body and one end of the second band X2 on the side opposite to the watch body by the band fastener 1. It is a so-called buckle-type band that is connected and configured so that the length between these ends can be adjusted. One end of the first band X1 is rotatably connected to one end of the fastener body 2, and one end of the second band X2 is detachably connected to the other end of the fastener body 2. A plurality of holes X2a are formed at intervals in the longitudinal direction L at one end of the second band X2. An engagement pin 22b formed on the upper member 22, which will be described later, is inserted into one of the plurality of holes X2a and engaged with it, so that one end of the second band X2 is connected to the other end of the fastener body 2 as the first first band X2. It is connected to one end of the band X1 so that the length can be adjusted.

[バンド用留め具]
図1~図3に示すように、本実施形態では、バンド用留め具1は、第1バンドX1の一端部と第2バンドX2の一端部との間に配置され、これら端部間を着脱自在に接続するものであり、留め具本体2と箱体3と係合機構4と回転防止機構5とを含んで構成されており、それぞれ金属製の部材で形成されている。
[Band fastener]
As shown in FIGS. 1 to 3, in this embodiment, the band fastener 1 is arranged between one end of the first band X1 and one end of the second band X2. It is freely connected, and includes a fastener main body 2, a box body 3, an engaging mechanism 4, and a rotation preventing mechanism 5, each of which is formed of a metal member.

留め具本体2は、バンド用留め具1の本体であり、第1バンドX1に接続する下部材21と、第2バンドX2に接続する上部材22と、下部材21と上部材22とを接続する中部材23とを有し、下部材21、中部材23及び上部材22の順で折り畳み可能に形成されている。 The fastener main body 2 is the main body of the band fastener 1, and connects the lower member 21 connected to the first band X1, the upper member 22 connected to the second band X2, and the lower member 21 and the upper member 22. The lower member 21, the intermediate member 23, and the upper member 22 are formed to be foldable in this order.

下部材21は、金属製の薄板材により薄板状に形成されており、その一端部が第1接続ピン24を介して第1バンドX1の一端部に回動可能に接続している。これにより留め具本体2の一端部が第1バンドX1の一端部に接続している。具体的には、下部材21は、手首の曲率に概ね合うように湾曲すると共に所定の幅を有して形成された下湾曲部21aと、下湾曲部21aの一端部に取り付けられると共に二股に分かれてコの字状に形成された蟹足部21bとを有している。蟹足部21bが第1接続ピン24を介して第1バンドX1の一端部に回動可能に接続する。 The lower member 21 is formed in a thin plate shape from a thin metal plate material, and one end thereof is rotatably connected to one end of the first band X1 via a first connection pin 24 . As a result, one end of the fastener body 2 is connected to one end of the first band X1. Specifically, the lower member 21 includes a lower curved portion 21a that is curved to approximately match the curvature of the wrist and has a predetermined width, and a lower curved portion 21a that is attached to one end of the lower curved portion 21a and bifurcated. It has a crab leg portion 21b which is divided and formed in a U-shape. The crab leg portion 21b is rotatably connected to one end of the first band X1 through the first connection pin 24. As shown in FIG.

上部材22は、金属製の部材からなり、第2バンドX2の一端部に接続する。これにより留め具本体2の他端部が第2バンドX2の一端部に接続する。 The upper member 22 is made of metal and is connected to one end of the second band X2. As a result, the other end of the fastener body 2 is connected to one end of the second band X2.

図4は、上部材22の裏面図である。本実施形態では、上部材22は、図1~図4に示すように、第2バンドX2を挿通可能な挿通口部22a(図4参照)と、第2バンドX2に形成された複数の孔X2aのいずれかに係合する係合ピン22bとを有している。上部材22は、挿通口部22aにおける長手方向Lに延びると共に互いに対向する第1側部22c及び第2側部22dと、第1側部22cの一端部と第2側部22dの一端部との間を接続しバンドXの幅方向Wに延びる接続部22eとからなり、全体として概ね門型状に形成されている。係合ピン22bは接続部22eに突設されており、上部材22は、挿通口部22aに第2バンドX2を挿通させた状態で係合ピン22bを複数の孔X2aのいずれかに挿入させて係合させることによって、第2バンドX2の一端部に着脱自在に接続する。つまり、上部材22の接続部22eが留め具本体2の他端部を構成する。なお、本実施形態において第1側部22c及び第2側部22dがそれぞれ本発明に係る「長手方向に延びる側部」に相当する。 4 is a back view of the upper member 22. FIG. In this embodiment, as shown in FIGS. 1 to 4, the upper member 22 includes an insertion opening 22a (see FIG. 4) through which the second band X2 can be inserted, and a plurality of holes formed in the second band X2. and an engagement pin 22b that engages with one of X2a. The upper member 22 includes a first side portion 22c and a second side portion 22d that extend in the longitudinal direction L of the insertion opening portion 22a and face each other, and one end portion of the first side portion 22c and one end portion of the second side portion 22d. and a connecting portion 22e extending in the width direction W of the band X to connect between them, and is generally formed in a gate shape as a whole. The engagement pin 22b protrudes from the connection portion 22e, and the upper member 22 allows the engagement pin 22b to be inserted into one of the plurality of holes X2a while the second band X2 is inserted through the insertion port portion 22a. It is detachably connected to one end of the second band X2 by engaging with it. That is, the connecting portion 22e of the upper member 22 constitutes the other end portion of the fastener body 2. As shown in FIG. In addition, in the present embodiment, the first side portion 22c and the second side portion 22d respectively correspond to the "side portion extending in the longitudinal direction" according to the present invention.

図1~図3に示すように、中部材23は、金属製の薄板材により薄板状に形成されており、その一端部が第2接続ピン25を介して下部材21の他端部に回動可能に接続しており、その他端部が第3接続ピン26を介して上部材22の第1側部22cの他端部及び第2側部22dの他端部に回動可能に接続している。中部材23は、第2接続ピン25を介して下部材21側に向って回動したときに、下部材21の一端部を除く部位を間に挟むと共に下部材21の曲率と合わせた曲率で湾曲する一対の中湾曲部23a,23aを有しており、この一対の中湾曲部23a,23aの一端部にはそれぞれ第2接続ピン25用の嵌合孔が形成されている。このようにして、中部材23は下部材21に対して折り畳み可能に形成されている。また、一対の中湾曲部23a,23aの他端部は、曲率半径の中心と反対側、つまり、図1に示すように、折り畳まれた状態で外側に向かって屈曲している。この屈曲した他端部の間は、図3に示すように、接続片23bにより接続されている。そして、この接続片23bに、第3接続ピン26用の嵌合孔が形成されている。上部材22は、第3接続ピン26を介して中部材23側に向って回動し、中部材23に対して折り畳み可能に構成されている。 As shown in FIGS. 1 to 3, the middle member 23 is formed in a thin plate shape from a thin metal plate material, and one end of the middle member 23 is connected to the other end of the lower member 21 via a second connection pin 25 . The other end is rotatably connected to the other end of the first side portion 22c and the other end of the second side portion 22d of the upper member 22 via the third connection pin 26. ing. When the intermediate member 23 rotates toward the lower member 21 via the second connection pin 25, the intermediate member 23 sandwiches the portion excluding one end of the lower member 21 and has a curvature that matches the curvature of the lower member 21. It has a pair of curved middle curved portions 23a, 23a, and fitting holes for the second connection pins 25 are formed at one ends of the pair of middle curved portions 23a, 23a, respectively. Thus, the middle member 23 is formed foldable with respect to the lower member 21 . The other ends of the pair of middle curved portions 23a, 23a are bent outward in the folded state as shown in FIG. As shown in FIG. 3, the bent other ends are connected by a connecting piece 23b. A fitting hole for the third connection pin 26 is formed in the connection piece 23b. The upper member 22 rotates toward the middle member 23 via the third connection pin 26 and is configured to be foldable with respect to the middle member 23 .

図5及び図6は箱体3と係合機構4の一部の組立体を説明するための図であり、図5は裏面図であり、図6は図5に示すA方向から視た側面図である。 5 and 6 are diagrams for explaining a part of the assembly of the box 3 and the engaging mechanism 4, FIG. 5 is a rear view, and FIG. 6 is a side view seen from direction A shown in FIG. It is a diagram.

箱体3は、係合機構4の一部を収容する収容室31を形成するものであり、中部材23と上部材22が折り畳まれた状態で中部材23と上部材22との間に位置するように配置されている。箱体3は全体としてバンドXの幅方向Wに延びる概ね矩形筒状に形成されており、この筒体内の空間が収容室31を構成している。箱体3の幅方向Wの両端部32,33には、それぞれ開口部32a,33aが形成されており、各開口部32a,33aは収容室31に開口している。 The box body 3 forms an accommodation chamber 31 that accommodates a part of the engagement mechanism 4, and is positioned between the intermediate member 23 and the upper member 22 when the intermediate member 23 and the upper member 22 are folded. are arranged to The box body 3 as a whole is formed in a substantially rectangular tubular shape extending in the width direction W of the band X, and the space inside this tubular body constitutes a storage chamber 31 . Openings 32 a and 33 a are formed at both ends 32 and 33 in the width direction W of the box 3 , respectively, and each opening 32 a and 33 a opens into the housing chamber 31 .

箱体3における長手方向Lの一端部は、中部材23の他端部(つまり、中部材23における上部材22側の端部)に、第3接続ピン26を介して上部材22と伴に回動可能に接続されている。そして、箱体3の一端部における幅方向Wの長さが上部材22の挿通口部22aの内側の幅より小さく設定されている。具体的には、箱体3における長手方向Lの一端部の幅方向Wの中央部には、凹部34が凹設されており、この凹部34に中部材23の接続片23bが嵌合されている。そして、箱体3の一端部には、第3接続ピン26用の嵌合孔が形成されている。中部材23と上部材22が折り畳まれた状態で、箱体3は上部材22の第1側部22cと第2側部22dとの間に挟まれている。なお、箱体3のより詳しい構造については、後に詳述する。 One end of the box 3 in the longitudinal direction L is connected to the other end of the middle member 23 (that is, the end of the middle member 23 on the upper member 22 side) together with the upper member 22 via the third connection pin 26 . rotatably connected. The length in the width direction W at one end of the box 3 is set smaller than the inner width of the insertion opening 22 a of the upper member 22 . Specifically, a recess 34 is formed in the center of the width direction W of one end of the box 3 in the longitudinal direction L, and the connection piece 23b of the intermediate member 23 is fitted into the recess 34. there is A fitting hole for the third connection pin 26 is formed at one end of the box 3 . The box body 3 is sandwiched between the first side portion 22c and the second side portion 22d of the upper member 22 with the middle member 23 and the upper member 22 folded. A more detailed structure of the box 3 will be described later.

係合機構4は、下部材21に設けられる突起部6と、箱体3に組み込まれる一対の係合部材7,8と、一対の係合部材7,8を付勢する弾性部材9とを有し、留め具本体2を折り畳んだ状態で係合するための機構である。 The engagement mechanism 4 includes a protrusion 6 provided on the lower member 21, a pair of engagement members 7 and 8 incorporated in the box 3, and an elastic member 9 that biases the pair of engagement members 7 and 8. It is a mechanism for engaging the fastener main body 2 in a folded state.

突起部6は、下部材21における第1バンドX1側の所定部位に突設され、軸状の軸部6aと頭部6bとを有する。頭部6bは、軸部6aの端部に軸部6aよりも大径の半球体状に形成されており、下部材21と中部材23が折り畳まれた状態で箱体3内に貫入可能に構成されている。 The projecting portion 6 projects from a predetermined portion of the lower member 21 on the side of the first band X1, and has a shaft-shaped shaft portion 6a and a head portion 6b. The head portion 6b is formed at the end of the shaft portion 6a in a hemispherical shape having a diameter larger than that of the shaft portion 6a, and can penetrate into the box body 3 in a state where the lower member 21 and the middle member 23 are folded. It is configured.

一対の係合部材7,8は、箱体3内にて頭部6bに係脱自在に係合可能な係合部10(図5参照)を協働して形成するものである。なお、一対の係合部材7,8の形状については、後に詳述する。 The pair of engaging members 7 and 8 cooperate to form an engaging portion 10 (see FIG. 5) that can be detachably engaged with the head portion 6b inside the box 3. As shown in FIG. The shape of the pair of engaging members 7 and 8 will be detailed later.

弾性部材9は、一対の係合部材7,8を互いに引き離す方向に付勢する部材であり、例えば、圧縮ばねからなる。弾性部材9は、一対の係合部材7,8の一方の先端部と一対の係合部材7,8の他方の所定部位(詳しくは、後述する第2弾性部材支持片83)との間と、一対の係合部材7,8の他方の先端部と一対の係合部材7,8の一方の所定部位(詳しくは、後述する第1弾性部材支持片73)との間とにそれぞれ設けられている。弾性部材9により、一対の係合部材7,8が互いに引き離される方向に付勢されることによって、係合部10を構成する後述する第1縁部76aと第2縁部86aとが互いに近づいて突起部6に係合する方向(閉方向)に移動する。そして、係合機構4は、一対の係合部材7,8が押圧操作されると係合部10と頭部6bとの係合を解除可能に構成されている。 The elastic member 9 is a member that biases the pair of engaging members 7 and 8 in a direction to separate them from each other, and is made of, for example, a compression spring. The elastic member 9 is provided between the distal end portion of one of the pair of engaging members 7 and 8 and the predetermined portion of the other of the pair of engaging members 7 and 8 (specifically, a second elastic member support piece 83 described later). , between the other end of the pair of engaging members 7 and 8 and a predetermined portion of one of the pair of engaging members 7 and 8 (more specifically, a first elastic member support piece 73 to be described later). ing. The elastic member 9 urges the pair of engaging members 7 and 8 in a direction in which they are separated from each other, whereby a first edge portion 76a and a second edge portion 86a, which constitute the engaging portion 10 and will be described later, approach each other. to move in the direction of engaging with the protrusion 6 (close direction). The engaging mechanism 4 is configured to be able to release the engagement between the engaging portion 10 and the head portion 6b when the pair of engaging members 7 and 8 are pressed.

回転防止機構5は、一対の係合部材7,8のそれぞれに一体に形成されると共に、上部材22の第1側部22c及び第2側部22dに係合して上部材22の回動を防止する機構である。なお、回転防止機構5の構造についても、後に詳述する。また、以下では、一対の係合部材7,8の一方を第1係合部材7と呼び、一対の係合部材7,8の他方を第2係合部材8と呼ぶ。 The anti-rotation mechanism 5 is formed integrally with each of the pair of engaging members 7 and 8, and is engaged with the first side portion 22c and the second side portion 22d of the upper member 22 to prevent the upper member 22 from rotating. It is a mechanism to prevent The structure of the anti-rotation mechanism 5 will also be detailed later. Moreover, below, one of the pair of engaging members 7 and 8 is called the first engaging member 7 and the other of the pair of engaging members 7 and 8 is called the second engaging member 8 .

[詳細構造]
次に、箱体3、係合機構4及び回転防止機構5の詳細形状及び構造について説明する。図7~図9は箱体3単体を説明するための図であり、図7は箱体3の裏面図、図8は図7に示すB方向から視た側面図、図9は図7に示すC方向から視た側面図である。そして、図10~図14は、第1係合部材7及び第2係合部材8を説明するための図であり、図10は第1係合部材7の平面図であり、図11は図10に示すD方向から視た第1係合部材7の側面図であり、図12は第2係合部材8の平面図であり、図13は図12に示すF方向から視た第2係合部材8の側面図である。図14は図10に示すE-E矢視の部分断面図であると共に、図13に示すG-G矢視の部分断面図でもある。
[Detailed structure]
Next, detailed shapes and structures of the box 3, the engaging mechanism 4, and the anti-rotation mechanism 5 will be described. 7 to 9 are diagrams for explaining the box 3 alone, FIG. 7 is a rear view of the box 3, FIG. 8 is a side view seen from direction B shown in FIG. 7, and FIG. It is the side view seen from the C direction shown. 10 to 14 are diagrams for explaining the first engaging member 7 and the second engaging member 8, FIG. 10 is a plan view of the first engaging member 7, and FIG. 10 is a side view of the first engaging member 7 viewed from direction D shown in FIG. 10, FIG. 12 is a plan view of the second engaging member 8, and FIG. 13 is a second engaging member viewed from direction F shown in FIG. 3 is a side view of a joining member 8; FIG. 14 is a partial cross-sectional view taken along the line EE shown in FIG. 10, and is also a partial cross-sectional view taken along the line GG shown in FIG.

[箱体の詳細構造]
図7~図9に示すように、箱体3は、例えば、箱体本体3aと溝蓋3bとからなる。箱体本体3aは、平面視(図7参照)で概ね矩形状に形成されている。箱体本体3aにおけるバンドXの長手方向Lの一端部に、凹部34が形成されている。箱体本体3aには、幅方向Wの全体に亘って所定幅を有し延びる溝部が形成されている。溝蓋3bは平面視(図7参照)で矩形状の薄板からなり、箱体本体3aの前記溝部の上部開口を覆うように箱体本体3aに取り付けられると共に箱体本体3aに溶着されている。これにより、四角柱状の空間としての収容室31が形成されている。つまり、溝蓋3bと箱体本体3aにおける前記溝部の底壁3a1と両側壁3a2,3a3とにより収容室31が形成されている。また、溝蓋3bは箱体3の裏面側の部位を構成する。つまり、箱体3が中部材23の他端部に回動可能に接続された状態において、溝蓋3bは中部材23側に面している。この溝蓋3bには、下部材21に突設された突起部6の頭部6bを貫入可能な第1貫通孔3b1が開口されている。そして、溝蓋3bに対面する箱体本体3aの底壁3a1には、頭部6bより大径の第2貫通孔3a4が開口されている。また、箱体本体3aの両側壁3a2,3a3における幅方向Wの中央部には、それぞれ、所定幅で切り欠かれた切り欠き部3a5がそれぞれ形成されている。切り欠き部3a5には、図7~図9に示すように、突起片3a6が切り欠き部3a5の幅より小さい幅を有して各側壁3a2,3a3と平行に起立するように各側壁3a2,3a3と一体的に形成されている。この突起片3a6は、第1係合部材7及び第2係合部材8が箱体3に組み付けられた後に、図8に実線矢印で示す方向に折り曲げられ、図5及び図6に示すように第1係合部材7及び第2係合部材8のスライド移動(摺動)の移動端を定める移動規制片3a6’を構成している。そして、箱体3には、上部材22が当接(接触)する部位が形成されている。具体的には、図7~図9に示すように、箱体3の幅方向Wの両端部32,33の他端部側(つまり側壁3a2側)における箱体3の回動方向についての上部材側の各部位には、それぞれ幅方向Wの外方に張り出す張出部32b,33bが形成されている。本実施形態では、張出部32b,33bは、箱体本体3aに形成されている。張出部32b,33bは、換言すると、中部材23と上部材22が折り畳まれた状態で、箱体3の幅方向Wの両端部32,33の他端部側における上部材22側の部位に突設されている。より具体的には、本実施形態では、図5及び図6に示すように、張出部32b,33bにおける箱体3の一端部側(つまり側壁3a3側)の端面32b1,33b1は、第1押圧片72及び第2押圧片82における箱体3の一端部側(側壁3a3側)の端面72a,82aより箱体3の他端部側(側壁3a2側)に位置している。
[Detailed structure of box]
As shown in FIGS. 7 to 9, the box 3 is composed of, for example, a box body 3a and a groove lid 3b. The box main body 3a is formed in a generally rectangular shape in plan view (see FIG. 7). A recess 34 is formed at one end of the band X in the longitudinal direction L of the box body 3a. The box main body 3a is formed with a groove extending over the entire width direction W with a predetermined width. The groove cover 3b is made of a rectangular thin plate in plan view (see FIG. 7), and is attached to the box body 3a so as to cover the upper opening of the groove of the box body 3a and is welded to the box body 3a. . As a result, a storage chamber 31 is formed as a square prism-shaped space. In other words, a storage chamber 31 is formed by the groove lid 3b, the bottom wall 3a1 of the groove in the box body 3a, and the side walls 3a2 and 3a3. Further, the groove lid 3b constitutes a portion on the back side of the box 3. As shown in FIG. That is, in a state where the box 3 is rotatably connected to the other end of the middle member 23, the groove lid 3b faces the middle member 23 side. The groove lid 3b has a first through hole 3b1 into which the head 6b of the protrusion 6 protruding from the lower member 21 can be inserted. A second through hole 3a4 having a diameter larger than that of the head portion 6b is opened in the bottom wall 3a1 of the box body 3a facing the groove lid 3b. A notch portion 3a5 having a predetermined width is formed in each of the side walls 3a2 and 3a3 of the box main body 3a at the central portion in the width direction W. As shown in FIG. As shown in FIGS. 7 to 9, each of the side walls 3a2 and 3a3 has a protruding piece 3a6 which has a width smaller than that of the notch 3a5 and which stands parallel to the side walls 3a2 and 3a3. It is integrally formed with 3a3. After the first engaging member 7 and the second engaging member 8 are assembled to the box 3, the projecting piece 3a6 is bent in the direction indicated by the solid line arrow in FIG. A movement restricting piece 3a6' that defines the end of the sliding movement (sliding) of the first engaging member 7 and the second engaging member 8 is formed. A portion with which the upper member 22 abuts (contacts) is formed in the box 3 . Specifically, as shown in FIGS. 7 to 9, the other end side (that is, the side wall 3a2 side) of both ends 32 and 33 in the width direction W of the box 3 is upwardly rotated in the rotation direction of the box 3. Protruding portions 32b and 33b protruding outward in the width direction W are formed at respective parts on the member side. In this embodiment, the projecting portions 32b and 33b are formed on the box body 3a. In other words, when the middle member 23 and the upper member 22 are folded, the overhanging portions 32b and 33b are located on the other end side of the both ends 32 and 33 in the width direction W of the box body 3 and on the side of the upper member 22. protruding from the More specifically, in the present embodiment, as shown in FIGS. 5 and 6, the end surfaces 32b1 and 33b1 of the overhanging portions 32b and 33b on the one end side (that is, the side wall 3a3 side) of the box 3 are the first The pressing piece 72 and the second pressing piece 82 are positioned closer to the other end side (side wall 3a2) of the box 3 than the end faces 72a, 82a of the box 3 on the one end side (side wall 3a3).

[係合機構の詳細構造]
本実施形態では、図10~図13に示すように、一対の係合部材7,8の一方である第1係合部材7は第1係合片71と、第1押圧片72と、第1弾性部材支持片73とを有し(図10及び図11参照)、一対の係合部材7,8の他方である第2係合部材8は第2係合片81と、第2押圧片82と、第2弾性部材支持片83とを有する(図12及び図13参照)。第1係合片71及び第2係合片81は箱体3の収容室31内に収まる程度に収容室31の高さより僅かに小さい厚みを有している。
[Detailed structure of engagement mechanism]
In this embodiment, as shown in FIGS. 10 to 13, the first engaging member 7, which is one of the pair of engaging members 7 and 8, includes a first engaging piece 71, a first pressing piece 72, and a first pressing piece 72. The second engaging member 8, which is the other of the pair of engaging members 7 and 8, has a second engaging piece 81 and a second pressing piece (see FIGS. 10 and 11). 82 and a second elastic member supporting piece 83 (see FIGS. 12 and 13). The first engagement piece 71 and the second engagement piece 81 have a thickness slightly smaller than the height of the housing chamber 31 to the extent that they can be accommodated in the housing chamber 31 of the box 3 .

第1係合片71は、突起部6の頭部6bと係合可能な係合部10の一部を形成する部位であり、箱体3内における幅方向Wに延びる一方の内側面31aに沿って摺動可能にガイドされて直線状に延びている。本実施形態では、箱体3内の一方の内側面31aとは、図5及び図6に示すように、箱体3おける長手方向Lの他端部側(換言すると、箱体本体3aの両側壁3a2,3a3のうちの凹部34と反対側)の側壁3a2の内側面であり、箱体3内の他方の内側面31bとは、箱体3おける長手方向Lの一端部側(換言すると、箱体本体3aの両側壁3a2,3a3のうちの凹部34側)の側壁3a3の内側面である。第1係合片71は、第2係合片81と同じ厚みで形成されており、後述するように第2係合片81と並んで配置されている。つまり、第1係合片71は側壁3a2と第2係合片81との間に配置されている。そして、第1係合片71の幅と第2係合片81の幅とを加えて得た全体の幅は箱体3の収容室31内の長手方向Lについての長さより若干短くなるように設定されている。特に限定するものでないが、第2係合片81の幅は第1係合片71の幅に合わせられている。 The first engaging piece 71 is a portion forming part of the engaging portion 10 that can be engaged with the head portion 6b of the protrusion 6, and is provided on one inner side surface 31a extending in the width direction W inside the box 3. It extends linearly while being slidably guided along. In the present embodiment, one inner side surface 31a in the box 3 is, as shown in FIGS. The inner surface of the side wall 3a2 of the walls 3a2 and 3a3 on the opposite side of the recess 34), and the other inner surface 31b in the box 3 is one end side of the box 3 in the longitudinal direction L (in other words, It is the inner surface of the side wall 3a3 of the side walls 3a2 and 3a3 of the box main body 3a on the side of the recess 34). The first engaging piece 71 has the same thickness as the second engaging piece 81, and is arranged side by side with the second engaging piece 81 as described later. That is, the first engaging piece 71 is arranged between the side wall 3a2 and the second engaging piece 81. As shown in FIG. The total width obtained by adding the width of the first engaging piece 71 and the width of the second engaging piece 81 is slightly shorter than the length of the housing chamber 31 of the box 3 in the longitudinal direction L. is set. Although not particularly limited, the width of the second engaging piece 81 is matched with the width of the first engaging piece 71 .

第1押圧片72は、第1係合片71と一体的に形成されると共に箱体3の一方の開口部32a側にて外方に位置して押圧操作される部位である。換言すると、第1係合片71は第1押圧片72と一体的に形成されている。第1押圧片72は、第1係合片71の延伸方向(図では幅方向W)の端部から連続して延伸しており、第1係合片71の厚み方向について片側(張出部32bと反対側)に寄せて一体的に形成されている。第1押圧片72は第1係合片71より肉厚の厚みを有している。第1押圧片72は、図5に示すように、箱体3おける長手方向Lの他端部側(側壁3a2側)に寄せて配置されており、第1係合片71及び第1押圧片72が一列に連続して配置されている。 The first pressing piece 72 is formed integrally with the first engaging piece 71 and positioned outward on one opening 32a side of the box 3 to be pressed. In other words, the first engaging piece 71 is formed integrally with the first pressing piece 72 . The first pressing piece 72 extends continuously from an end portion of the first engaging piece 71 in the extending direction (the width direction W in the figure), and extends from one side (projection portion) of the first engaging piece 71 in the thickness direction. 32b and the opposite side). The first pressing piece 72 is thicker than the first engaging piece 71 . As shown in FIG. 5, the first pressing piece 72 is arranged closer to the other end side (the side wall 3a2 side) in the longitudinal direction L of the box 3, and the first engaging piece 71 and the first pressing piece 72 are arranged continuously in a row.

第1弾性部材支持片73は、第1係合片71における第2係合片81側の第1側面71aに突設されている。第1弾性部材支持片73は、第1側面71aにおける第1押圧片72側の部位から側壁3a3に向かって延びる部位であり、一方の弾性部材9の一端部を受け入れて支持する第1受部74を有する。第1弾性部材支持片73は第1係合片71と同じ厚みを有して第1係合片71と一体的に形成されており、第1係合片71及び第1弾性部材支持片73は全体として平面視で概ねL字状に形成されている。図5に示すように、このL字状の第1係合片71及び第1弾性部材支持片73の内側に、第2係合片81が配置されている。第1受部74は第1弾性部材支持片73における第2係合片81の先端部に対向する側部に凹状に凹設されている。また、一方の弾性部材9の他端部は、第2係合片81の先端部に凹状に凹設された第2受部84に受け入れられて支持されている。 The first elastic member supporting piece 73 protrudes from the first side surface 71a of the first engaging piece 71 on the second engaging piece 81 side. The first elastic member support piece 73 is a portion extending from a portion of the first side surface 71a on the side of the first pressing piece 72 toward the side wall 3a3, and is a first receiving portion that receives and supports one end portion of the one elastic member 9. 74. The first elastic member support piece 73 has the same thickness as the first engagement piece 71 and is integrally formed with the first engagement piece 71 . is generally L-shaped in plan view. As shown in FIG. 5 , the second engaging piece 81 is arranged inside the L-shaped first engaging piece 71 and the first elastic member supporting piece 73 . The first receiving portion 74 is recessed in a side portion of the first elastic member supporting piece 73 facing the tip portion of the second engaging piece 81 . The other end of one elastic member 9 is received and supported by a second receiving portion 84 which is recessed at the tip of the second engaging piece 81 .

第2係合片81は、第1係合片71と協働して係合部10を形成する部位であり、箱体3内における幅方向Wに延びる他方の内側面31b(つまり、側壁3a3の内側面)と第1係合片71との間において側壁3a3の内側面に沿って摺動可能にガイドされて直線状に延びている。第2係合片81は、第1係合片71と並んで配置されている。つまり、第2係合片81は側壁3a3と第1係合片71との間に配置されており、第2係合片81における第1係合片71側の第2側面81aは第1係合片71における第1側面71aと摺動可能に構成されている。 The second engaging piece 81 is a part that cooperates with the first engaging piece 71 to form the engaging portion 10, and is the other inner side surface 31b extending in the width direction W inside the box 3 (that is, the side wall 3a3). ) and the first engaging piece 71, and is slidably guided along the inner surface of the side wall 3a3 and extends linearly. The second engaging piece 81 is arranged side by side with the first engaging piece 71 . That is, the second engaging piece 81 is arranged between the side wall 3a3 and the first engaging piece 71, and the second side surface 81a of the second engaging piece 81 on the first engaging piece 71 side is the first engaging piece. It is configured to be slidable with the first side surface 71 a of the joining piece 71 .

第2押圧片82は、第2係合片81と一体的に形成されると共に箱体3の他方の開口部33a側にて外方に位置して押圧操作される部位である。換言すると、第2係合片81は第2押圧片82と一体的に形成されている。第2押圧片82は、第2係合片81の延伸方向(図では幅方向W)の端部から第2弾性部材支持片83を介して連続して延伸しており、第2係合片81の厚み方向について片側(張出部33bと反対側)に寄せて一体的に形成されている。第2押圧片82は第2係合片81より肉厚の厚みを有している。第2押圧片82は、図5に示すように、第1押圧片72と同様に、箱体3おける長手方向Lの他端部側(側壁3a2側)に寄せて配置されている。第2押圧片82は、第2係合片81に対して長手方向Lにずらして配置されている。 The second pressing piece 82 is formed integrally with the second engaging piece 81 and is positioned outward on the other opening 33a side of the box 3 to be pressed. In other words, the second engaging piece 81 is integrally formed with the second pressing piece 82 . The second pressing piece 82 extends continuously from the end of the second engaging piece 81 in the extending direction (the width direction W in the drawing) via the second elastic member supporting piece 83 . In the thickness direction of 81, it is integrally formed so as to be shifted to one side (opposite side to projecting portion 33b). The second pressing piece 82 is thicker than the second engaging piece 81 . As shown in FIG. 5, the second pressing piece 82 is arranged closer to the other end side (the side wall 3a2) of the box 3 in the longitudinal direction L in the same manner as the first pressing piece 72. As shown in FIG. The second pressing piece 82 is arranged to be shifted in the longitudinal direction L with respect to the second engaging piece 81 .

第2弾性部材支持片83は、第2係合片81における第2側面81aに突設されている。第2弾性部材支持片83は、第2側面81aにおける第2押圧片82側の部位から側壁3a2に向かって延びる部位であり、他方の弾性部材9の一端部を受け入れて支持する第3受部85を有する。第2弾性部材支持片83は第2係合片81と同じ厚みを有して第2係合片81と一体的に形成されており、第2係合片81及び第2弾性部材支持片83は全体として平面視で概ねL字状に形成されている。図5に示すように、このL字状の第2係合片81及び第2弾性部材支持片83の内側に、第1係合片71が配置されている。第3受部85は第2弾性部材支持片83における第1係合片71の先端部に対向する側部に凹状に凹設されている。また、他方の弾性部材9の他端部は、第1係合片71の先端部に凹状に凹設された第4受部75に受け入れられて支持されている。 The second elastic member supporting piece 83 protrudes from the second side surface 81 a of the second engaging piece 81 . The second elastic member support piece 83 is a portion extending from a portion of the second side surface 81a on the side of the second pressing piece 82 toward the side wall 3a2, and is a third receiving portion that receives and supports one end portion of the other elastic member 9. 85. The second elastic member supporting piece 83 has the same thickness as the second engaging piece 81 and is integrally formed with the second engaging piece 81 . is generally L-shaped in plan view. As shown in FIG. 5 , the first engaging piece 71 is arranged inside the L-shaped second engaging piece 81 and the second elastic member supporting piece 83 . The third receiving portion 85 is recessed in a side portion of the second elastic member supporting piece 83 facing the tip portion of the first engaging piece 71 . The other end portion of the other elastic member 9 is received and supported by a fourth receiving portion 75 which is recessed at the tip portion of the first engaging piece 71 .

本実施形態では、第1係合片71における第1側面71aには、第1凹部76が凹設されていると共に、第2係合片81における第1側面71aと対向する第2側面81aには第2凹部86が凹設されている。第1凹部76及び第2凹部86は、例えば、図10及び図12に示すようにそれぞれ平面視で台形状に切り欠かれており、台形の下底側が開口端をなしている。また、第1係合片71における第1側面71aと反対側の側面である第3側面71bには、第3凹部77が凹設されていると共に、第2係合片81における第2側面81aと反対側の側面である第4側面81bには、第4凹部87が凹設されている。第3凹部77及び第4凹部87内には、図5に示すように、移動規制片3a6’の先端部がそれぞれ位置している。 In the present embodiment, the first side surface 71a of the first engaging piece 71 is provided with a first concave portion 76, and the second side surface 81a of the second engaging piece 81 facing the first side surface 71a is provided with a second recess 86 . For example, as shown in FIGS. 10 and 12, the first concave portion 76 and the second concave portion 86 are notched in a trapezoidal shape in plan view, and the bottom side of the trapezoid forms an open end. A third side surface 71b of the first engaging piece 71 opposite to the first side surface 71a is provided with a third concave portion 77, and a second side surface 81a of the second engaging piece 81 is provided. A fourth recess 87 is provided on the fourth side surface 81b opposite to the side surface. As shown in FIG. 5, the tip portions of the movement restricting pieces 3a6' are located in the third recess 77 and the fourth recess 87, respectively.

本実施形態では、係合部10は、第1凹部76における他方の開口部33a側(図10では左側)の第1縁部76aと、第2凹部86における一方の開口部32a側(図12では右側)の第2縁部86aとにより形成されている。第1縁部76aは、第1凹部76の底部76bから離れるにしたがって他方の開口部33aに近づくように傾斜している。第2縁部86aは、第2凹部86の底部86bから離れるにしたがって一方の開口部32aに近づくように傾斜している。 In this embodiment, the engaging portion 10 includes a first edge portion 76a on the side of the other opening 33a of the first recess 76 (left side in FIG. 10) and a side of the opening 32a on the one side of the second recess 86 (FIG. 12). the second edge portion 86a on the right side). The first edge portion 76a is inclined so as to approach the other opening portion 33a as it separates from the bottom portion 76b of the first recess portion 76 . The second edge portion 86a is inclined so as to approach one opening portion 32a as it separates from the bottom portion 86b of the second recessed portion 86 .

図14は図10に示すE-E矢視の部分断面図であると共に、図12に示すG-G矢視の部分断面図でもある。第1縁部76aは厚み方向内側に向かって傾斜する第1傾斜面76a1を有し、第2縁部86aも厚み方向内側に向かって傾斜する第2傾斜面86a1を有している。具体的には、第1係合片71における厚み方向の一端面(図11では上側端面)と第1縁部76aの端面との角部が斜めに面取り加工されると共に、第2係合片81における厚み方向の一端面(図13では上側端面)と第2縁部86aの端面との角部が斜めに面取り加工されており、これにより平坦な面からなる第1傾斜面76a1及び第2傾斜面86a1が形成される。また、第1縁部76a及び第2縁部86aの先端部は斜め直線状に延びている。突起部6の頭部6bは第1係合片71及び第2係合片81の厚み方向の前記一端面側から挿入される。また、本実施形態では、第1押圧片72及び第2押圧片82は図11及び図13に示すようにそれぞれ第1係合片71及び第2係合片81の厚み方向の前記一端面側に寄せて形成されている。また、突起部6の頭部6bが箱体3内に貫入した状態で、突起部6の軸方向の中心は長手方向Lについて第1係合片71と第2係合片81との間の境界位置に合わせられると共に幅方向Wについて第1縁部76aと第2縁部86aとの中間位置に合わせられている。 14 is a partial cross-sectional view taken along the line EE shown in FIG. 10, and is also a partial cross-sectional view taken along the line GG shown in FIG. The first edge portion 76a has a first inclined surface 76a1 inclined inward in the thickness direction, and the second edge portion 86a also has a second inclined surface 86a1 inclined inward in the thickness direction. Specifically, the corner between one end face in the thickness direction of the first engaging piece 71 (the upper end face in FIG. 11) and the end face of the first edge portion 76a is obliquely chamfered, and the second engaging piece The corner between one end face (the upper end face in FIG. 13) in the thickness direction of 81 and the end face of the second edge portion 86a is chamfered obliquely. An inclined surface 86a1 is formed. Further, the tip portions of the first edge portion 76a and the second edge portion 86a extend obliquely in a straight line. The head portion 6b of the protrusion 6 is inserted from the one end face side in the thickness direction of the first engaging piece 71 and the second engaging piece 81 . In the present embodiment, the first pressing piece 72 and the second pressing piece 82 are, as shown in FIGS. It is formed in line with Further, when the head portion 6b of the protrusion 6 is inserted into the box 3, the center of the protrusion 6 in the axial direction is between the first engaging piece 71 and the second engaging piece 81 in the longitudinal direction L. It is aligned with the boundary position and is aligned with an intermediate position in the width direction W between the first edge portion 76a and the second edge portion 86a.

第1係合片71の厚み方向の他端面(図11では下側端面)における第1縁部76aに対応する部位には、第1縁部76aにおける幅方向Wについての幅と合せた幅を有する第1溝部78が長手方向Lに延びるように形成されている。同様に、第2係合片81の厚み方向の他端面(図13では下側端面)における第2縁部86aに対応する部位には、第2縁部86aにおける幅方向Wについての幅と合せた幅を有する第2溝部88が長手方向Lに延びるように形成されている。第1縁部76aにおける第1傾斜面76a1と反対側の面は第1溝部78の底面の一部を構成し、第2縁部86aにおける第2傾斜面86a1と反対側の面は第2溝部88の底面の一部を構成している。 A portion corresponding to the first edge portion 76a on the other end surface in the thickness direction of the first engaging piece 71 (lower end surface in FIG. 11) has a width combined with the width in the width direction W of the first edge portion 76a. A first groove portion 78 is formed to extend in the longitudinal direction L. Similarly, a portion corresponding to the second edge portion 86a on the other end surface in the thickness direction of the second engaging piece 81 (the lower end surface in FIG. 13) has a width matching the width of the second edge portion 86a in the width direction W. A second groove portion 88 having a wider width is formed to extend in the longitudinal direction L. As shown in FIG. The surface of the first edge portion 76a opposite to the first inclined surface 76a1 forms part of the bottom surface of the first groove portion 78, and the surface of the second edge portion 86a opposite to the second inclined surface 86a1 constitutes the second groove portion. It constitutes a part of the bottom surface of 88.

[回転防止機構の詳細構造]
本実施形態では、回転防止機構5は、箱体3の一方の開口部32a側にて箱体3における長手方向Lの一端部側(側壁3a3側)に寄せて配置され上部材22の第1側部22cに係脱自在に係合可能な第1回転防止片5aと、箱体3の他方の開口部33a側にて箱体3における一端部側(側壁3a3側)に寄せて配置され上部材22の第2側部22dに係脱自在に係合可能な第2回転防止片5bとからなる。具体的には、第1回転防止片5aは第1弾性部材支持片73における第1受部74と反対側の側部に第1弾性部材支持片73と同じ厚みで幅方向Wの外方に向かって突設されており、先細りの概ね台形状に形成されている。第2回転防止片5bは第2係合片81の基端部(図12では左側端部)に第2係合片81と同じ厚みで幅方向Wの外方に向かって突設されており、先細りの概ね台形状に形成されている。第1回転防止片5aは係合部10が閉状態(図5に示す状態)において箱体3の一方の開口部32aから外方に突出しており、開状態(図示省略)において箱体3の収容室31内に位置しており、箱体3の内外に進退可能に構成されている。第2回転防止片5bは係合部10が閉状態(図5に示す状態)において箱体3の他方の開口部33aから外方に突出しており、開状態(図示省略)において箱体3の収容室31内に位置しており、箱体3の内外に進退可能に構成されている。上部材22の第1側部22cの他端部における第1回転防止片5aに対応する位置と、上部材22の第2側部22dの他端部における第2回転防止片5bに対応する位置には、それぞれ係合孔22fが開口されている。上部材22が箱体3側に回動して閉じた状態において、第1回転防止片5aが第1側部22cの係合孔22fに貫入して係止されると共に第2回転防止片5bが第2側部22dの係合孔22fに貫入して係止されることにより、上部材22の箱体3に対する回転が防止される。
[Detailed structure of anti-rotation mechanism]
In this embodiment, the anti-rotation mechanism 5 is disposed near one end of the longitudinal direction L of the box 3 (side wall 3 a 3 side) on one opening 32 a side of the box 3 , and is arranged at the first opening 32 a of the upper member 22 . A first anti-rotation piece 5a releasably engageable with the side portion 22c and a first anti-rotation piece 5a which is disposed near one end (side wall 3a3) of the box 3 on the side of the other opening 33a of the box 3. It comprises a second anti-rotation piece 5b that can be removably engaged with the second side portion 22d of the member 22. As shown in FIG. Specifically, the first anti-rotation piece 5 a has the same thickness as the first elastic member support piece 73 and extends outward in the width direction W on the side of the first elastic member support piece 73 opposite to the first receiving portion 74 . It protrudes toward and is formed in a tapered, generally trapezoidal shape. The second anti-rotation piece 5b has the same thickness as the second engaging piece 81 and protrudes outward in the width direction W from the base end portion (the left end portion in FIG. 12) of the second engaging piece 81. , tapering to form a generally trapezoidal shape. The first anti-rotation piece 5a protrudes outward from one opening 32a of the box 3 when the engaging portion 10 is in the closed state (the state shown in FIG. 5). It is located inside the housing chamber 31 and is configured to be able to advance and retreat inside and outside the box 3 . The second anti-rotation piece 5b protrudes outward from the other opening 33a of the box 3 when the engaging portion 10 is in the closed state (shown in FIG. 5), and the opening 33a of the box 3 in the open state (not shown). It is located inside the housing chamber 31 and is configured to be able to advance and retreat inside and outside the box 3 . A position corresponding to the first rotation prevention piece 5a at the other end of the first side portion 22c of the upper member 22 and a position corresponding to the second rotation prevention piece 5b at the other end of the second side portion 22d of the upper member 22. are formed with engagement holes 22f. When the upper member 22 is rotated toward the box body 3 and closed, the first anti-rotation piece 5a is inserted into the engagement hole 22f of the first side portion 22c to be locked, and the second anti-rotation piece 5b is engaged. is inserted into the engagement hole 22f of the second side portion 22d and locked, the rotation of the upper member 22 with respect to the box 3 is prevented.

[係合部材の組み付け]
本実施形態では、前述したように、箱体3は箱体本体3aと溝蓋3bとにより構成され、箱体本体3aに溝蓋3bを溶着することにより箱体3が形成されている。ここで、溝蓋3bを箱体本体3aに溶着する前に、第1係合部材7及び第2係合部材8を箱体本体3aの溝部内に組み付け、その後、溝蓋3bを箱体本体3aに溶着すると、溶着時に発生する熱により、薄板材からなる第1係合部材7及び第2係合部材8が変形することになる。このような変形を防止するため、溝蓋3bを箱体本体3aにビス止めすることも考えられるが部品点数の増加を招いてしまうため、箱体本体3aへの溝蓋3bの取り付けは溶着が望ましい。その結果、第1係合部材7及び第2係合部材8の箱体3への組み付けは、溝蓋3bを箱体本体3aに溶着した後に行わざるを得ない。そのため、第1係合部材7及び第2係合部材8の箱体3への組み付けは、以下の手順で行われる。
[Assembly of engagement member]
In this embodiment, as described above, the box body 3 is composed of the box body 3a and the groove lid 3b, and the box body 3 is formed by welding the groove lid 3b to the box body 3a. Here, before welding the groove lid 3b to the box body 3a, the first engaging member 7 and the second engaging member 8 are assembled in the groove of the box body 3a, and then the groove lid 3b is attached to the box body. When it is welded to 3a, the first engaging member 7 and the second engaging member 8 made of thin plate material are deformed by the heat generated at the time of welding. In order to prevent such deformation, it is conceivable to screw the groove lid 3b to the box body 3a. desirable. As a result, the first engaging member 7 and the second engaging member 8 must be assembled to the box 3 after the groove lid 3b is welded to the box body 3a. Therefore, the assembly of the first engaging member 7 and the second engaging member 8 to the box 3 is performed in the following procedure.

箱体本体3aと溝蓋3bの溶着後、例えば、第1係合片71が箱体3の側壁3a2の内側面に寄せられた状態で箱体3の一方の開口部32aから箱体3内に挿入される。この第1係合片71は、第3凹部77が切り欠き部3a5に対応する位置に到達するまで箱体3内をスライド移動され、その後、突起片3a6が折り曲げられる。次に、箱体3の他方の開口部33aを介して、一方の弾性部材9が第1係合片71の第1受部74に組み込まれると共に、他方の弾性部材9が第1係合片71の第4受部75に組み込まれる。この状態で、第2係合片81が他方の開口部33aを介して箱体3の側壁3a3と第1係合片71との間に挿入される。この第2係合片81は、第4凹部87が切り欠き部3a5に対応する位置に到達するまで箱体3内をスライド移動され、その後、突起片3a6が折り曲げられる。これにより、図5に示すように、第1係合部材7及び第2係合部材8が箱体3へ組み付けられる。この状態で、第1係合部材7と第2係合部材8は弾性部材9によりそれぞれ幅方向Wの外方に付勢されると共に、それぞれの移動が移動規制片3a6’により規制されている。 After the box main body 3a and the groove cover 3b are welded together, for example, the first engaging piece 71 is moved into the box 3 from one opening 32a of the box 3 while being brought close to the inner surface of the side wall 3a2 of the box 3. is inserted into The first engagement piece 71 is slid in the box 3 until the third concave portion 77 reaches a position corresponding to the notch portion 3a5, after which the projecting piece 3a6 is bent. Next, one elastic member 9 is incorporated into the first receiving portion 74 of the first engagement piece 71 through the other opening 33a of the box 3, and the other elastic member 9 is connected to the first engagement piece. It is incorporated in the fourth receiving portion 75 of 71 . In this state, the second engaging piece 81 is inserted between the side wall 3a3 of the box 3 and the first engaging piece 71 through the other opening 33a. The second engagement piece 81 is slid in the box 3 until the fourth recess 87 reaches a position corresponding to the notch portion 3a5, after which the projecting piece 3a6 is bent. Thereby, the first engaging member 7 and the second engaging member 8 are assembled to the box 3 as shown in FIG. In this state, the first engaging member 7 and the second engaging member 8 are each urged outward in the width direction W by the elastic member 9, and their movements are restricted by the movement restricting pieces 3a6'. .

[バンド用留め具の動作]
次に、バンド用留め具1により腕時計を手首へ装着する際の張出部32b,33bを有するバンド用留め具1の動作の一例を、主に図1、図2及び図15等を参照して説明する。図15は図1に示す状態に続く状態を示しており、図15(a)~図15(c)は手首への装着まで動作を示しており、図15(d)は係合部10の係合が解除された状態を示している。図16は図15(d)に続く動作の一例を説明するための概念図であり、図17は張出部32b,33bを有さない別のバンド用留め具1における再装着時の動作の一例を説明するための概念図である。なお、別のバンド用留め具1’は張出部32b,33bを有していないこと以外については本実施形態におけるバンド用留め具1と同じ構造を有している。
[Operation of the band fastener]
Next, referring mainly to FIGS. 1, 2 and 15, etc., an example of the operation of the band clasp 1 having the projecting portions 32b and 33b when the wristwatch is worn on the wrist by the band clasp 1 will be described. to explain. FIG. 15 shows the state following the state shown in FIG. 1, FIGS. 15(a) to 15(c) show the operation up to attachment to the wrist, and FIG. 15(d) shows the engagement portion 10. The disengaged state is shown. FIG. 16 is a conceptual diagram for explaining an example of the operation following FIG. 15(d), and FIG. 17 shows the operation when reattaching another band fastener 1 that does not have overhangs 32b and 33b. It is a conceptual diagram for explaining an example. Another band fastener 1' has the same structure as the band fastener 1 of the present embodiment except that it does not have the projecting portions 32b and 33b.

まず、図2に示すように、バンド用留め具1は大きく展開される。この状態で、第2バンドX2の端部が挿通口部22aに挿入されると共に、手首がバンドXとバンド用留め具1により形成される環状体内に挿入される。その後、図1に示すように、中部材23が下部材21側に回動される。図15(a)では、中部材23が下部材21側に更に回動されて下部材21側に折り畳まれている。この状態で突起部6の頭部6bの一部が箱体3の第1貫通孔3b1を介して箱体3内に貫入する。このとき、係合部10は図5に示すように第1縁部76aと第2縁部86aとが弾性部材9の付勢力により互いに近づいた状態(つまり、係合部10が最小に閉じた状態)になっており、頭部6bは第1縁部76aの第1傾斜面76a1(図10参照)及び第2縁部86aの第2傾斜面86a1(図12参照)に当接する。その結果、箱体3は突起部6の頭部6bに押し上げられ、図15(a)に示すように折り畳まれた下部材21及び中部材23から離れる方向に回動する。この状態で、例えば、第1押圧片72及び第2押圧片82が弾性部材9の付勢力に抗してそれぞれ内側に向かって押圧操作されると、第1縁部76aと第2縁部86aとが互いに離れる方向に移動して、係合部10が開く。その結果、図15(b)に示すように、頭部6bが第1縁部76aと第2縁部86aとの間をすり抜けると共に、箱体3が回動して下部材21及び中部材23に当接する。その後、押圧操作を解除すると、第1縁部76aと第2縁部86aが弾性部材9の付勢力により互いに近づく方向に移動し、突起部6の軸部6aが第1縁部76aと第2縁部86aとの間に挟まれる。このとき、頭部6bの軸部6a側の端面は、第1係合片71の第1溝部78の底面(図11参照)及び第2係合片81の第2溝部88の底面(図13参照)に当接する。これにより、下部材21と中部材23と箱体3が折り畳まれた状態で維持されて互いに係合する。また、図15(a)の状態で、単に箱体3を指等により中部材23側に押し付けることにより、第1縁部76aと第2縁部86aを弾性部材9の付勢力に抗して互いに離れる方向に移動させ、頭部6bを第1縁部76aと第2縁部86aとの間をすり抜けさせることもできる。つまり、第1押圧片72及び第2押圧片82の押圧操作又は箱体3自体への押圧によって、下部材21と中部材23と箱体3を折り畳まれた状態で互いに係合させる。その後、図15(c)に示すように、第2バンドX2の長さが調整されつつ、上部材22が指等により回動操作され、複数の孔X2aのいずれかに上部材22の係合ピン22bが挿入され、第2バンドX2の一端部が留め具本体2の他端部に接続される。このとき、上部材22の第1側部22cの基端部が第1回転防止片5aにおける側壁3a3側の傾斜部5a1(図5及び図10参照)に当接すると共に、上部材22の第2側部22dの基端部が第2回転防止片5bにおける側壁3a3側の傾斜部5b1(図5及び図12参照)に当接する。その結果、第1回転防止片5a及び第2回転防止片5bが上部材22の回動に連動して弾性部材9の付勢力に抗してそれぞれ箱体3内に移動する。その後、更に上部材22が箱体3側に向って回動され、係合孔22fと第1回転防止片5a及び第2回転防止片5bとが一致すると、図15(c)に示すように、第1回転防止片5aが弾性部材9の付勢力により箱体3内から飛び出し第1側部22cの係合孔22fに係合すると共に、第1回転防止片5aが弾性部材9の付勢力により箱体3内から飛び出し第1側部22cの係合孔22fに係合する。これにより、上部材22の回動が防止され、上部材22がぶらつくことなく折り畳まれた状態が維持され、腕時計の手首への装着が完了する。 First, as shown in FIG. 2, the band fastener 1 is largely unfolded. In this state, the end of the second band X2 is inserted into the insertion opening 22a, and the wrist is inserted into the annular body formed by the band X and the band fastener 1. As shown in FIG. After that, as shown in FIG. 1, the middle member 23 is rotated toward the lower member 21 side. In FIG. 15(a), the middle member 23 is further rotated toward the lower member 21 and folded toward the lower member 21. In FIG. In this state, a portion of the head portion 6b of the protrusion 6 penetrates into the box 3 through the first through hole 3b1 of the box 3. As shown in FIG. At this time, as shown in FIG. 5, the engaging portion 10 is in a state where the first edge portion 76a and the second edge portion 86a approach each other due to the biasing force of the elastic member 9 (that is, the engaging portion 10 is closed to a minimum). state), and the head 6b contacts the first inclined surface 76a1 (see FIG. 10) of the first edge portion 76a and the second inclined surface 86a1 (see FIG. 12) of the second edge portion 86a. As a result, the box 3 is pushed up by the head 6b of the protrusion 6, and is rotated away from the folded lower member 21 and middle member 23 as shown in FIG. 15(a). In this state, for example, when the first pressing piece 72 and the second pressing piece 82 are pressed inwardly against the biasing force of the elastic member 9, the first edge portion 76a and the second edge portion 86a are pushed. move away from each other to open the engaging portion 10 . As a result, as shown in FIG. 15(b), the head portion 6b passes through between the first edge portion 76a and the second edge portion 86a, and the box body 3 rotates to move the lower member 21 and the middle member 23. abut on. After that, when the pressing operation is released, the first edge portion 76a and the second edge portion 86a move toward each other due to the biasing force of the elastic member 9, and the shaft portion 6a of the projection portion 6 moves between the first edge portion 76a and the second edge portion 86a. It is sandwiched between the edge 86a. At this time, the end surface of the head portion 6b on the shaft portion 6a side is the bottom surface of the first groove portion 78 of the first engaging piece 71 (see FIG. 11) and the bottom surface of the second groove portion 88 of the second engaging piece 81 (see FIG. 13). ). Thereby, the lower member 21, the middle member 23 and the box body 3 are maintained in a folded state and engaged with each other. 15(a), the first edge 76a and the second edge 86a are pushed against the biasing force of the elastic member 9 by simply pressing the box 3 against the middle member 23 with a finger or the like. They can also be moved away from each other to allow the head 6b to slip between the first edge 76a and the second edge 86a. That is, by pressing the first pressing piece 72 and the second pressing piece 82 or pressing the box 3 itself, the lower member 21, the middle member 23 and the box 3 are engaged with each other in a folded state. Thereafter, as shown in FIG. 15(c), while the length of the second band X2 is being adjusted, the upper member 22 is rotated by a finger or the like so that the upper member 22 is engaged with one of the plurality of holes X2a. The pin 22b is inserted, and one end of the second band X2 is connected to the other end of the fastener body 2. As shown in FIG. At this time, the base end portion of the first side portion 22c of the upper member 22 abuts on the inclined portion 5a1 (see FIGS. 5 and 10) on the side wall 3a3 of the first anti-rotation piece 5a, and The base end of the side portion 22d abuts on the inclined portion 5b1 (see FIGS. 5 and 12) on the side wall 3a3 of the second anti-rotation piece 5b. As a result, the first anti-rotation piece 5a and the second anti-rotation piece 5b are interlocked with the rotation of the upper member 22 and move into the box 3 against the urging force of the elastic member 9 respectively. After that, the upper member 22 is further rotated toward the box 3 side, and when the engaging hole 22f is aligned with the first anti-rotation piece 5a and the second anti-rotation piece 5b, as shown in FIG. 15(c). , the first anti-rotation piece 5a protrudes from the inside of the box 3 by the biasing force of the elastic member 9 and engages with the engagement hole 22f of the first side portion 22c. , it jumps out of the box 3 and engages with the engagement hole 22f of the first side portion 22c. As a result, the upper member 22 is prevented from rotating, and the folded state is maintained without the upper member 22 dangling, thus completing the attachment of the wristwatch to the wrist.

装着完了後、第1押圧片72及び第2押圧片82が指等により押圧操作されると、突起部6と係合部10との係合が解除される。そして、この状態でそのまま箱体3が下部材21から引き離す方向につまみ上げられると、図15(d)に示すように中部材23が展開される。これにより、バンドXの手首への締め付けが緩むと共にバンドXとバンド用留め具1により形成される環状体が拡径され、手首を環状体内から抜き出すことができる。 After the mounting is completed, when the first pressing piece 72 and the second pressing piece 82 are pressed by a finger or the like, the engagement between the projecting portion 6 and the engaging portion 10 is released. In this state, when the box 3 is picked up in the direction of pulling away from the lower member 21, the middle member 23 is unfolded as shown in FIG. 15(d). As a result, the tightening of the band X to the wrist is loosened, and the annular body formed by the band X and the band fastener 1 is expanded in diameter, so that the wrist can be pulled out of the annular body.

ここで、図16は図15(d)に続く動作の一例を説明するための概念図であり、係合解除後、手首へ再装着する場合の状態の一例が示されている。図15(d)に示すように、第1側部22cの係合孔22fに第1回転防止片5aが貫入すると共に第2側部22dの係合孔22fに第2回転防止片5bが貫入している状態で、腕時計を手首に再装着する場合に、上部材22の接続部22eが軽く押圧されると、図16に示すように中部材23が下部材21に対して折り畳まれる。このとき、箱体3は図16に示すように突起部6の頭部6bにより押上げられる。この状態で、第1押圧片72及び第2押圧片82が押圧操作された後、その押圧が解除されると、係合部10と突起部6とが係合し図15(c)に示す状態となり再装着が完了する。しかし、図16に示す状態で、第1押圧片72及び第2押圧片82ではなく、上部材22の接続部22eを図中白抜き矢印方向に強く押圧することにより、係合部10と突起部6とを係合させようと操作する場合が想定される。このような操作をされることが予測される状況において、仮に、バンド用留め具1において張出部32b,33bが形成されていなかった場合、この張出部32b,33bを有さない別のバンド用留め具1’では、図17(a)に示すように、各回転防止片5a,5bと係合孔22fとの隙間分だけ上部材22の回動が許容されているため、上部材22の第1側部22cが第1押圧片72の角部に当接すると共に、上部材22の第2側部22dが第2押圧片82の角部に当接する。その結果、第1係合部材7及び第2係合部材8が動きにくくなって係合部10の開方向への動きが鈍くなり、係合部10と突起部6との係合が上手くできない場合が想定される。また、このとき、上部材22には、第1押圧片72の角部及び第2押圧片82の角部を中心(支点)Y’とする回転モーメントが作用する。その結果、図17(a)に実線矢印で示すように、上部材22の接続部22eと反対側の端部が下部材21から離れる方向の力が発生し、その後、更に上部材22の接続部22eが押圧されると、図17(b)に示すように、上部材22に第3接続ピン26を介して接続された中部材23が箱体3と伴に下部材21から離れる方向に移動してしまい、係合部10と突起部6との係合が上手くできない場合が想定され得る。 Here, FIG. 16 is a conceptual diagram for explaining an example of the operation following FIG. 15(d), showing an example of a state in which the wrist is re-attached after disengagement. As shown in FIG. 15(d), the first anti-rotation piece 5a is inserted into the engagement hole 22f of the first side portion 22c, and the second anti-rotation piece 5b is inserted into the engagement hole 22f of the second side portion 22d. In this state, when the wristwatch is put on the wrist again, when the connecting portion 22e of the upper member 22 is lightly pressed, the intermediate member 23 is folded against the lower member 21 as shown in FIG. At this time, the box 3 is pushed up by the head 6b of the protrusion 6 as shown in FIG. In this state, after the first pressing piece 72 and the second pressing piece 82 are pressed, when the pressing is released, the engaging portion 10 and the protrusion 6 are engaged with each other as shown in FIG. 15(c). state and re-mounting is completed. However, in the state shown in FIG. 16, the connecting portion 22e of the upper member 22, rather than the first pressing piece 72 and the second pressing piece 82, is strongly pressed in the direction of the hollow arrow in the figure, thereby causing the engagement portion 10 and the protrusion to move. It is assumed that the operation is performed to engage the portion 6 . In a situation where such an operation is expected, if the overhanging portions 32b and 33b were not formed in the band fastener 1, another device without the overhanging portions 32b and 33b would be In the band fastener 1', as shown in FIG. 17(a), the upper member 22 is allowed to rotate by the gap between the anti-rotation pieces 5a and 5b and the engagement hole 22f. The first side portion 22 c of the upper member 22 abuts on the corner of the first pressing piece 72 , and the second side portion 22 d of the upper member 22 abuts on the corner of the second pressing piece 82 . As a result, the first engaging member 7 and the second engaging member 8 become difficult to move, the movement of the engaging portion 10 in the opening direction slows down, and the engagement between the engaging portion 10 and the projecting portion 6 cannot be performed well. is assumed. At this time, the upper member 22 is subjected to a rotational moment centered (fulcrum) Y′ on the corners of the first pressing piece 72 and the second pressing piece 82 . As a result, as indicated by solid arrows in FIG. 17(a), a force is generated in the direction in which the end of the upper member 22 opposite to the connecting portion 22e separates from the lower member 21. After that, the upper member 22 is further connected. When the portion 22e is pressed, as shown in FIG. 17(b), the middle member 23 connected to the upper member 22 via the third connecting pin 26 moves away from the lower member 21 together with the box 3. It is conceivable that the engaging portion 10 and the projecting portion 6 may not be properly engaged due to movement.

一方、張出部32b,33bを有するバンド用留め具1では、図16(a)に示すように、再装着時に上部材22が強く押圧操作されたとしても、上部材22は、第1押圧片72及び第2押圧片82には当接せず、張出部32b,33bに当接している。したがって、バンド用留め具1では、上部材22が第1押圧片72及び第2押圧片82に当接することを防止することができる。したがって、上部材22が押圧操作されることによって、第1係合部材7及び第2係合部材8が開方向へスムーズにスライド移動し、係合部10と突起部6との係合がスムーズに行われ、図15(c)に示す状態となり再装着が完了する。より具体的には、本実施形態では、前述したように、張出部32b,33bにおける箱体3の一端部側(つまり側壁3a3側)の端面32b1,33b1は、第1押圧片72及び第2押圧片82における箱体3の一端部側(側壁3a3側)の端面72a,82aより箱体3の他端部側(側壁3a2側)に位置するように構成されている。これにより、上部材22の接続部22eを押圧すると、図16に示すように、上部材22の第1側部22cが張出部32bの角部に当接すると共に、上部材22の第2側部22dが張出部33bの角部に当接する。このとき、上部材22には、各張出部32b,33bの角部を中心(支点)Yとする回転モーメントが作用する。しかし、この中心Yは各押圧片72,82の角部である中心Y’よりも力点P側(つまり接続部22e側)に位置している。その結果、図17に示した場合と比較して、上部材22に作用する回転モーメントが小さくなるため、この回転モーメントにより中部材23が箱体3と伴に下部材21から離れる方向に移動することを抑制することができ、ひいては、係合部10と突起部6との係合がよりスムーズに行われる。 On the other hand, in the band fastener 1 having the overhanging portions 32b and 33b, as shown in FIG. 16(a), even if the upper member 22 is strongly pressed at the time of reattachment, the upper member 22 is not pressed by the first pressure. It is not in contact with the piece 72 and the second pressing piece 82, but is in contact with the projecting portions 32b and 33b. Therefore, in the band fastener 1 , the upper member 22 can be prevented from contacting the first pressing piece 72 and the second pressing piece 82 . Therefore, by pressing the upper member 22, the first engaging member 7 and the second engaging member 8 slide smoothly in the opening direction, and the engagement between the engaging portion 10 and the protrusion 6 is smooth. 15(c) and the remounting is completed. More specifically, in the present embodiment, as described above, the end surfaces 32b1 and 33b1 of the overhanging portions 32b and 33b on the one end side (that is, the side wall 3a3 side) of the box 3 are the first pressing piece 72 and the second pressing piece 72. The second pressing piece 82 is positioned closer to the other end (side wall 3a2) of the box 3 than the end faces 72a, 82a of the box 3 (side wall 3a3). As a result, when the connecting portion 22e of the upper member 22 is pressed, as shown in FIG. The portion 22d abuts on the corner of the projecting portion 33b. At this time, the upper member 22 is subjected to a rotational moment centered (fulcrum) Y at the corners of the projecting portions 32b and 33b. However, the center Y is located on the power point P side (that is, the connecting portion 22e side) from the center Y', which is the corner of each of the pressing pieces 72 and 82. As shown in FIG. As a result, the rotational moment acting on the upper member 22 is smaller than in the case shown in FIG. Therefore, the engagement between the engaging portion 10 and the protrusion 6 can be performed more smoothly.

本実施形態によるバンド用留め具1によれば、箱体3の幅方向Wの両端部の他端部側における箱体3の回動方向についての上部材22側の各部位には、それぞれ幅方向Wの外方に張り出す張出部32b,33bが形成されている。これにより、仮に上部材22を強く押圧することによって係合部10と突起部6とを係合させようと操作されたとしても、上部材22は第1押圧片72及び第2押圧片82ではなく、張出部32b,33bに当接(接触)することになり、第1押圧片72及び第2押圧片82への上部材22の当接が防止される。その結果、箱体3内の係合部10が突起部6に押し付けられているときにおいて、第1係合部材7及び第2係合部材8の係合の解除方向(開方向)へ移動がスムーズになり、係合部10と突起部6との係合がスムーズに行われる。このようにして、再装着時における操作性を向上させることができるバンド用留め具1を提供することができる。 According to the band fastener 1 according to this embodiment, width Protruding portions 32b and 33b protruding outward in the direction W are formed. As a result, even if the upper member 22 is strongly pressed to engage the engaging portion 10 and the protrusion 6, the upper member 22 is not pressed by the first pressing piece 72 and the second pressing piece 82. Therefore, the upper member 22 is prevented from contacting the first pressing piece 72 and the second pressing piece 82 . As a result, when the engaging portion 10 in the box 3 is pressed against the projecting portion 6, the movement of the first engaging member 7 and the second engaging member 8 in the disengagement direction (opening direction) is prevented. The engagement between the engaging portion 10 and the projecting portion 6 is smoothly performed. In this way, it is possible to provide the band fastener 1 that can improve the operability at the time of reattachment.

本実施形態では、第1係合片71は箱体3内における幅方向Wに延びる一方の内側面31a(側壁3a2の内側面)に沿って摺動可能にガイドされて直線状に延びており、第2係合片81は箱体3内における幅方向Wに延びる他方の内側面31b(側壁3a3の内側面)と第1係合片71との間において他方の内側面31bに沿って摺動可能にガイドされて直線状に延びている。つまり、組み付けの際に箱体3内に挿入される部位である第1係合片71及び第2係合片81はいずれも直線状に形成されていると共に箱体内において互いの干渉(係合)を回避するように配置されている。したがって、箱体3内への組み付けの際に、事前に第1係合部材7の一端部と第2係合部材8の一端部を互いに係合させる必要はなく、組み付けの作業者等は、第1係合部材7の第1係合片71を箱体3の一方の開口部32a側から挿入すると共に、第2係合部材8の第2係合片81を箱体3の他方の開口部33a側から挿入して、箱体3内に組み付けることができる。このように、第1係合部材7及び第2係合部材8は、それぞれの係合片(第1係合片71、第2係合片81)を単独で箱体3内へ組み付け可能な構造を有しているため、例えば、第1押圧片72を第1係合片71の厚さより厚い板厚を有して形成することができると共に、第2押圧片82を第2係合片81の厚さより厚い板厚を有して形成することができる。その結果、第1押圧片72及び第2押圧片82の押圧操作の操作性を、従来の薄板状の一対の押圧片(特許文献1のプッシュボタン41,41)と比較して向上させることができ、ひいては、係合解除用の押圧操作の操作性を向上させることができるバンド用留め具1を提供することができる。 In this embodiment, the first engaging piece 71 extends linearly while being slidably guided along one inner side surface 31a (inner side surface of the side wall 3a2) extending in the width direction W inside the box 3. The second engaging piece 81 slides along the other inner side surface 31b between the other inner side surface 31b (the inner side surface of the side wall 3a3) extending in the width direction W inside the box 3 and the first engaging piece 71. It is movably guided and extends linearly. In other words, both the first engaging piece 71 and the second engaging piece 81, which are portions to be inserted into the box 3 during assembly, are formed in a straight line and interfere with each other (engagement) in the box. ) are arranged to avoid Therefore, when assembling into the box 3, it is not necessary to engage one end of the first engaging member 7 and one end of the second engaging member 8 in advance. The first engaging piece 71 of the first engaging member 7 is inserted from one opening 32 a of the box 3 , and the second engaging piece 81 of the second engaging member 8 is inserted into the other opening of the box 3 . It can be assembled in the box 3 by inserting from the portion 33a side. In this way, the first engaging member 7 and the second engaging member 8 can be individually assembled into the box body 3 with the respective engaging pieces (the first engaging piece 71 and the second engaging piece 81). Because of this structure, for example, the first pressing piece 72 can be formed to have a thickness greater than that of the first engaging piece 71, and the second pressing piece 82 can be formed as the second engaging piece. It can be formed with a thickness greater than the thickness of 81 . As a result, the operability of the pressing operation of the first pressing piece 72 and the second pressing piece 82 can be improved as compared with a conventional pair of thin plate-like pressing pieces (push buttons 41, 41 of Patent Document 1). In addition, it is possible to provide the band fastener 1 capable of improving the operability of the pressing operation for releasing the engagement.

また、本実施形態では、係合部10は、第1凹部76における他方の開口部33a側(図10では左側)の第1縁部76aと、第2凹部86における一方の開口部32a側(図12では右側)の第2縁部86aとにより形成されている。そして、第1縁部76aは第1凹部76の底部76bから離れるにしたがって他方の開口部33aに近づくように傾斜しており、第2縁部86aは第2凹部86の底部86bから離れるにしたがって一方の開口部32aに近づくように傾斜している。これにより、係合最中における突起部6の頭部6bの表面と第1縁部76a及び第2縁部86aとの当接面積、並びに、係合後における頭部6bの軸部6a側の端面と第1溝部78(図11参照)の底面及び第2溝部88(図13参照)の底面との当接面積が例えば第1縁部76a及び第2縁部86aが長手方向Lに沿って平行に延びている場合よりも多く確保することができる。その結果、頭部6bの箱体3内への貫入の際に第1係合部材7及び第2係合部材8がスムーズにスライド移動すると共に、係合後には安定した係合を維持することができる。 In the present embodiment, the engaging portion 10 includes a first edge portion 76a on the side of the other opening 33a of the first recess 76 (the left side in FIG. 10) and a side of the opening 32a on the one side of the second recess 86 ( 12 (right side in FIG. 12). The first edge portion 76a is inclined so as to approach the other opening portion 33a as it moves away from the bottom portion 76b of the first recess portion 76, and the second edge portion 86a slopes toward the other opening portion 33a as it moves away from the bottom portion 86b of the second recess portion 86. It inclines so that it may approach one opening 32a. As a result, the contact area between the surface of the head portion 6b of the protrusion 6 and the first edge portion 76a and the second edge portion 86a during engagement, and the contact area of the head portion 6b on the shaft portion 6a side after engagement. The contact area between the end surface and the bottom surface of the first groove portion 78 (see FIG. 11) and the bottom surface of the second groove portion 88 (see FIG. 13) is, for example, the first edge portion 76a and the second edge portion 86a along the longitudinal direction L More can be secured than if they extend in parallel. As a result, the first engaging member 7 and the second engaging member 8 slide smoothly when the head 6b is inserted into the box 3, and maintain stable engagement after the engagement. can be done.

本実施形態では、バンド用留め具1は、上部材22の側部(第1側部22c、第2側部22d)に係合して上部材22の回動を防止する回転防止機構5を更に備えている。これにより、上部材22の回動が防止され、上部材22と第2バンドX2との接続が意図せず解除されることを防止することができる。また、回転防止機構5は第1係合部材7、第2係合部材8のそれぞれに一体に形成されている。これにより、回転防止機構5を第1押圧片72及び第2押圧片82の押圧操作に連動して操作することができる。 In this embodiment, the band fastener 1 includes a rotation prevention mechanism 5 that engages with the side portions (first side portion 22c, second side portion 22d) of the upper member 22 to prevent rotation of the upper member 22. more ready. As a result, rotation of the upper member 22 is prevented, and unintentional disconnection between the upper member 22 and the second band X2 can be prevented. Moreover, the anti-rotation mechanism 5 is integrally formed with each of the first engaging member 7 and the second engaging member 8 . Thereby, the anti-rotation mechanism 5 can be operated in conjunction with the pressing operation of the first pressing piece 72 and the second pressing piece 82 .

本実施形態では、回転防止機構5は第1係合部材7に一体的に形成された第1回転防止片5aと第2係合部材8に一体的に形成された第2回転防止片5bとからなり、第1回転防止片5a及び第1押圧片72は箱体3の一方の開口部32aを介して外方に位置し、第2回転防止片5b及び第2押圧片82は箱体3の他方の開口部33aを介して外方に位置している。そして、第1押圧片72及び第2押圧片82は箱体3における長手方向Lの他端部側(側壁3a2側)に寄せて配置され、第1回転防止片5a及び第2回転防止片5bは箱体3における長手方向Lの一端部側(側壁3a3側)に寄せて配置されている。これにより、第1押圧片72及び第2押圧片82の押圧操作が容易になる。さらに、上部材22の基端部に第1回転防止片5a及び第2回転防止片5bを当接させて、第1回転防止片5a及び第2回転防止片5bを進退移動させることができるため、上部材22の回転操作に連動して回転防止機構5を操作することができる。 In this embodiment, the anti-rotation mechanism 5 includes a first anti-rotation piece 5a integrally formed with the first engaging member 7 and a second anti-rotation piece 5b integrally formed with the second engaging member 8. The first anti-rotation piece 5a and the first pressing piece 72 are located outside through one opening 32a of the box 3, and the second anti-rotation piece 5b and the second pressing piece 82 are located outside the box 3. is positioned outward through the other opening 33a. The first pressing piece 72 and the second pressing piece 82 are arranged near the other end of the box 3 in the longitudinal direction L (side wall 3a2), and the first rotation preventing piece 5a and the second rotation preventing piece 5b are arranged. are arranged near one end of the box 3 in the longitudinal direction L (side wall 3a3). This facilitates the pressing operation of the first pressing piece 72 and the second pressing piece 82 . Furthermore, since the first anti-rotation piece 5a and the second anti-rotation piece 5b are brought into contact with the base end of the upper member 22, the first anti-rotation piece 5a and the second anti-rotation piece 5b can be moved back and forth. , the anti-rotation mechanism 5 can be operated in conjunction with the rotation operation of the upper member 22 .

[変形例]
なお、係合部10を構成する第1縁部76a及び第2縁部86aの先端部は平面視(図10及び図12に示す平面視)で斜め直線状に延びるものとしたが、これに限らず、例えば、突起部6の頭部6bの形状に合わせたR形状に形成されていてもよい。これにより、より安定した係合を図ることができる。また、係合部10を構成する第1縁部76a及び第2縁部86aは第1係合部材7及び第2係合部材8のスライド移動方向(図では幅方向W)に対して斜めに傾斜しているものとしたが、これに限らず、スライド移動方向と直交(つまり、長手方向Lに沿って平行)する方向に延びていてもよい。また、本実施形態では、組み付けの際に箱体3内に挿入される部位である第1係合片71及び第2係合片81はいずれも直線状に形成されているものとしたが、これに限らず、従来と同様に、鉤状に屈曲するように形成されていてもよいし、適宜の形状を適用することができる。
[Modification]
Note that the tip portions of the first edge portion 76a and the second edge portion 86a that constitute the engaging portion 10 are assumed to extend obliquely in a straight line in plan view (the plan view shown in FIGS. 10 and 12). For example, it may be formed in an R shape that matches the shape of the head portion 6b of the protrusion 6. As shown in FIG. Thereby, more stable engagement can be achieved. Further, the first edge portion 76a and the second edge portion 86a forming the engaging portion 10 are inclined with respect to the sliding movement direction (the width direction W in the drawing) of the first engaging member 7 and the second engaging member 8. Although it is assumed to be inclined, it is not limited to this, and may extend in a direction orthogonal to the slide movement direction (that is, parallel along the longitudinal direction L). In addition, in the present embodiment, both the first engagement piece 71 and the second engagement piece 81, which are portions to be inserted into the box 3 during assembly, are formed linearly. Not limited to this, it may be formed so as to be bent like a hook as in the conventional art, or an appropriate shape can be applied.

また、バンドXは皮革製の部材からなるものとしたが、これに限らず、樹脂製や布製や金属製であってもよい。金属製のバンドXの場合、例えば、金属材からなる複数の細線を編み込んだメッシュ状のメタルバンドに尾錠用の孔X2aを形成すればよい。また、装身具の本体としては、腕時計の時計本体の場合を一例に挙げて説明したが、電話、歩数計、位置情報モニタ(GPS本体)、デジタル音楽プレーヤ、心拍数モニタといった各種のウェラブル情報端末であってもよい。また、装着部位は手首に限らず首回りや足首であってもよい。 Further, although the band X is made of a leather member, it is not limited to this, and may be made of resin, cloth, or metal. In the case of the band X made of metal, for example, holes X2a for the buckle may be formed in a mesh-shaped metal band in which a plurality of fine wires made of a metal material are woven. In addition, as the main body of the accessory, the case of the watch body of a wrist watch has been described as an example, but various wearable information terminals such as telephones, pedometers, position information monitors (GPS main body), digital music players, and heart rate monitors can be used. There may be. Also, the attachment site is not limited to the wrist, and may be around the neck or the ankle.

以上、本発明の好ましい実施形態及びその変形例について幾つか説明したが、本発明は上記実施形態及び上記変形例に制限されるものではなく、本発明の技術的思想に基づいて種々の変形及び変更が可能である。 Although some preferred embodiments and modifications thereof of the present invention have been described above, the present invention is not limited to the above embodiments and modifications, and various modifications and variations can be made based on the technical idea of the present invention. Change is possible.

1…バンド用留め具、2…留め具本体、3…箱体、4…係合機構、5…回転防止機構、5a…第1回転防止片、5b…第2回転防止片、6…突起部、6b…頭部、7,8…一対の係合部材、7…第1係合部材(一対の係合部材の一方)、8…第2係合部材(一対の係合部材の他方)、10…係合部、21…下部材、22…上部材、22a…挿通口部、22b…係合ピン、22c…第1側部(側部)、22d…第2側部(側部)、23…中部材、31a…一方の内側面、31b…他方の内側面、32,33…両端部、32a…一方の開口部、32b…張出部、33a…他方の開口部、33b…張出部、71…第1係合片、71a…第1側面、72…第1押圧片、76…第1凹部、76a…第1縁部、76b…第1凹部の底部、81…第2係合片、81a…第2側面、82…第2押圧片、86…第2凹部、86a…第2縁部、86b…第2凹部の底部、L…バンドの長手方向、X…バンド、X1…第1バンド(一方のバンド)、X2…第2バンド(他方のバンド)、X2a…孔、W…バンドの幅方向 DESCRIPTION OF SYMBOLS 1... Band fastener 2... Fastener main body 3... Box body 4... Engagement mechanism 5... Anti-rotation mechanism 5a... First anti-rotation piece 5b... Second anti-rotation piece 6... Projection , 6b... head, 7, 8... pair of engaging members, 7... first engaging member (one of the pair of engaging members), 8... second engaging member (other of the pair of engaging members), DESCRIPTION OF SYMBOLS 10... Engagement part 21... Lower member 22... Upper member 22a... Insertion opening part 22b... Engagement pin 22c... First side part (side part) 22d... Second side part (side part), 23 Middle member 31a One inner surface 31b The other inner surface 32, 33 Both ends 32a One opening 32b Overhang 33a The other opening 33b Overhang Parts 71... First engagement piece 71a... First side surface 72... First pressing piece 76... First recess 76a... First edge 76b... Bottom of first recess 81... Second engagement Piece 81a Second side surface 82 Second pressing piece 86 Second recess 86a Second edge 86b Bottom of second recess L Longitudinal direction of band X Band X1 Third 1 band (one band), X2... second band (the other band), X2a... hole, W... width direction of band

Claims (5)

装身具の本体の一端側に取り付けられた一方のバンドと前記本体の他端側に取り付けられた他方のバンドとを接続するバンド用留め具であって、
前記一方のバンドに接続する下部材と、前記他方のバンドに接続する上部材と、前記下部材と前記上部材とを接続する中部材とを有し、前記下部材、前記中部材及び前記上部材の順で折り畳み可能に形成される留め具本体と、
前記中部材と前記上部材が折り畳まれた状態で前記中部材と前記上部材との間に位置するように配置される箱体であって、その前記バンドの幅方向の両端部にそれぞれ開口部が形成される前記箱体と、
前記下部材における前記一方のバンド側の所定部位に突設されると共に前記下部材と前記中部材が折り畳まれた状態で前記箱体内に貫入可能な頭部を有する突起部と、前記箱体内にて前記頭部に係脱自在に係合可能な係合部を協働して形成する一対の係合部材とを有し、前記一対の係合部材が押圧操作されると前記係合部と前記頭部との係合を解除可能に構成された係合機構と、
を含み、
前記他方のバンドには、その長手方向に間隔を空けて複数の孔が形成されており、
前記上部材は、前記他方のバンドを挿通可能な挿通口部と、前記複数の孔のいずれかに係合する係合ピンとを有し、
前記上部材は前記係合ピンを前記孔に係合させることによって前記他方のバンドに接続し、
前記一対の係合部材の一方は、前記箱体の一方の前記開口部側にて外方に位置して押圧操作される第1押圧片を有し、
前記一対の係合部材の他方は、前記箱体の他方の前記開口部側にて外方に位置して押圧操作される第2押圧片を有し、
前記箱体における前記長手方向の一端部は前記中部材における前記上部材側の端部に回動可能に接続されると共に、前記箱体の前記一端部における前記幅方向の長さが前記上部材の前記挿通口部の内側の幅より小さく設定され、
前記第1押圧片及び前記第2押圧片は、前記箱体における前記長手方向の他端部側に寄せて配置され、
前記箱体の前記両端部の前記他端部側における前記箱体の回動方向についての前記上部材側の各部位には、それぞれ前記幅方向の外方に張り出す張出部が形成されている、バンド用留め具。
A band fastener for connecting one band attached to one end side of a body of an accessory and the other band attached to the other end side of the body,
A lower member connected to the one band, an upper member connected to the other band, and a middle member connecting the lower member and the upper member, wherein the lower member, the middle member, and the upper member a fastener body that is foldable in order of members;
A box body arranged so as to be positioned between the middle member and the upper member in a state in which the middle member and the upper member are folded, and openings at both ends in the width direction of the band. the box body formed with
a protrusion projecting from a predetermined portion of the lower member on the side of the one band and having a head portion that can be inserted into the box body in a state in which the lower member and the intermediate member are folded; and a pair of engaging members cooperating to form an engaging portion releasably engageable with the head, and when the pair of engaging members are pressed, the engaging portion and the engaging portion are formed. an engagement mechanism configured to be disengaged from the head;
including
The other band has a plurality of holes spaced apart in its longitudinal direction,
The upper member has an insertion opening through which the other band can be inserted, and an engagement pin that engages with one of the plurality of holes,
said upper member is connected to said other band by engaging said engagement pin with said hole;
one of the pair of engaging members has a first pressing piece that is positioned outward on the one opening side of the box and is pressed;
The other of the pair of engaging members has a second pressing piece that is positioned outward on the opening side of the other of the box and is pressed,
One end of the box in the longitudinal direction is rotatably connected to an end of the middle member on the side of the upper member, and the length of the one end of the box in the width direction is the length of the upper member. is set smaller than the inner width of the insertion opening of
The first pressing piece and the second pressing piece are arranged closer to the other end in the longitudinal direction of the box,
Projecting portions projecting outward in the width direction are formed at respective portions on the side of the upper member in the rotating direction of the box on the other end side of the both ends of the box. There is a clasp for the band.
前記一対の係合部材のそれぞれに一体に形成されると共に、前記上部材の前記挿通口部における長手方向Lに延びる側部に係合して前記上部材の回動を防止する回転防止機構を更に含む、請求項1に記載のバンド用留め具。 a rotation prevention mechanism formed integrally with each of the pair of engaging members and engaged with a side portion extending in the longitudinal direction L of the insertion opening of the upper member to prevent rotation of the upper member; 10. The band clasp of claim 1, further comprising. 前記回転防止機構は、前記箱体の一方の前記開口部側にて前記箱体における前記一端部側に寄せて配置され前記上部材の前記側部に係脱自在に係合可能な第1回転防止片と、前記箱体の他方の前記開口部側にて前記箱体における前記一端部側に寄せて配置され前記上部材の前記側部に係脱自在に係合可能な第2回転防止片とからなる請求項2に記載のバンド用留め具。 The anti-rotation mechanism is arranged near the one end of the box on the one opening side of the box and is detachably engageable with the side of the upper member. a prevention piece, and a second anti-rotation piece that is arranged closer to the one end of the box on the other opening side of the box and is detachably engageable with the side of the upper member. 3. The band fastener according to claim 2, comprising: 前記一対の係合部材の一方は、前記第1押圧片と一体的に形成されると共に前記係合部の一部を形成する第1係合片であって、前記箱体内における前記幅方向に延びる一方の内側面に沿って摺動可能にガイドされて直線状に延びている前記第1係合片を有し、
前記一対の係合部材の他方は、前記第2押圧片と一体的に形成されると共に前記第1係合片と協働して前記係合部を形成する第2係合片であって、前記箱体内における前記幅方向に延びる他方の内側面と前記第1係合片との間において前記他方の内側面に沿って摺動可能にガイドされて直線状に延びている前記第2係合片を有する、請求項1~3のいずれか一つに記載のバンド用留め具。
One of the pair of engaging members is a first engaging piece integrally formed with the first pressing piece and forming a part of the engaging portion, and Having the first engaging piece linearly extending while being slidably guided along one extending inner surface;
The other of the pair of engaging members is a second engaging piece that is integrally formed with the second pressing piece and that cooperates with the first engaging piece to form the engaging portion, The second engagement linearly extending while being slidably guided along the other inner side surface between the other inner side surface extending in the width direction of the box and the first engaging piece. A band fastener according to any one of claims 1 to 3, comprising a strip.
前記第1係合片における前記第2係合片側の第1側面には第1凹部が凹設されていると共に、前記第2係合片における前記第1側面と対向する第2側面には第2凹部が凹設されており、
前記係合部は、前記第1凹部における前記他方の開口部側の第1縁部と、前記第2凹部における前記一方の開口部側の第2縁部とにより形成され、
前記第1縁部は、前記第1凹部の底部から離れるにしたがって前記他方の開口部に近づくように傾斜しており、
前記第2縁部は、前記第2凹部の底部から離れるにしたがって前記一方の開口部に近づくように傾斜している、請求項4に記載のバンド用留め具。
A first concave portion is provided in a first side surface of the first engaging piece on the side of the second engaging piece, and a second side surface of the second engaging piece opposite to the first side surface has a second concave portion. 2 recesses are provided,
The engaging portion is formed by a first edge on the other opening side of the first recess and a second edge on the one opening side of the second recess,
The first edge is inclined so as to approach the other opening as it moves away from the bottom of the first recess,
5. The clasp for a band according to claim 4, wherein said second edge is slanted so as to approach said one opening with distance from the bottom of said second recess.
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Citations (4)

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Publication number Priority date Publication date Assignee Title
JP3090018U (en) 2002-04-30 2002-11-22 株式会社バンビ Pushbutton cap and push-type clasp structure provided with the cap
JP2006115992A (en) 2004-10-20 2006-05-11 Citizen Watch Co Ltd Clasp structure for accessory
JP2014004197A (en) 2012-06-26 2014-01-16 Nihon Seimitsu Co Ltd Clasp
JP3209929U (en) 2017-02-02 2017-04-13 株式会社バンビ Snap ring structure for watch band and watch band and wristwatch provided with the same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3939843B2 (en) * 1997-03-31 2007-07-04 シチズンホールディングス株式会社 Locking device for jewelry

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3090018U (en) 2002-04-30 2002-11-22 株式会社バンビ Pushbutton cap and push-type clasp structure provided with the cap
JP2006115992A (en) 2004-10-20 2006-05-11 Citizen Watch Co Ltd Clasp structure for accessory
JP2014004197A (en) 2012-06-26 2014-01-16 Nihon Seimitsu Co Ltd Clasp
JP3209929U (en) 2017-02-02 2017-04-13 株式会社バンビ Snap ring structure for watch band and watch band and wristwatch provided with the same

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