JPH0910021A - Intermediate fastener of band and its manufacture - Google Patents
Intermediate fastener of band and its manufactureInfo
- Publication number
- JPH0910021A JPH0910021A JP16055195A JP16055195A JPH0910021A JP H0910021 A JPH0910021 A JP H0910021A JP 16055195 A JP16055195 A JP 16055195A JP 16055195 A JP16055195 A JP 16055195A JP H0910021 A JPH0910021 A JP H0910021A
- Authority
- JP
- Japan
- Prior art keywords
- clasp
- opening
- operating member
- band
- elastic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Adornments (AREA)
Abstract
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明はバンドの中留具及びその
製造方法に係り、特に腕時計等のバンドに好適な、バン
ドの係合を解放するための操作部材を備えた中留具の構
造及びこれに適した製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clasp of a band and a method for manufacturing the clasp, and more particularly to a structure of a clasp having an operating member for releasing engagement of the band, which is suitable for a band of a wristwatch or the like. And a manufacturing method suitable therefor.
【０００２】[0002]
【従来の技術】従来、時計バンドの中留具の構造として
は、実開平４−１１８０１０号公報、実開平６−１２４
号公報等に記載されているように、一方の時計バンドの
端部に中留本体を取付けるとともに他方の時計バンドの
端部に枠金具を取付け、中留本体に回動自在に取付けら
れた開閉部材を設けて、枠金具を中留本体と開閉部材と
の間に収容して開閉部材を閉鎖することにより、時計バ
ンドを接続するものが知られている。2. Description of the Related Art Conventionally, the structure of a center clasp of a watch band has been disclosed in Japanese Utility Model Publication No. 4-118010 and Japanese Utility Model Publication No. 6-124.
As described in the publication, etc., the clasp body is attached to the end of one watch band and the frame fitting is attached to the end of the other watch band, and the opening and closing is rotatably attached to the clasp body. It is known that a watch band is connected by providing a member, housing the frame fitting between the clasp body and the opening / closing member, and closing the opening / closing member.
【０００３】これらの構造においては、操作ボタンが中
留本体に対して出没自在に取付けられ、内部に収容され
たバネによって突出方向に付勢されている。この状態で
開閉部材を閉鎖すると、中留本体内の操作ボタン若しく
はこれと連動して動作する部材に開閉部材が係合し、そ
の閉鎖状態が保持されるようになっている。操作ボタン
を押圧すると、中留本体に係合していた開閉部材は解放
され、時計バンドの接続を解くことができる。In these structures, the operation button is attached to the clasp main body so as to be retractable, and is biased in the protruding direction by a spring housed inside. When the opening / closing member is closed in this state, the opening / closing member is engaged with the operation button in the clasp body or the member that operates in conjunction with the operation button, and the closed state is maintained. When the operation button is pressed, the opening / closing member engaged with the clasp body is released, and the watch band can be disconnected.
【０００４】[0004]
【発明が解決しようとする課題】従来の操作ボタンを備
えた中留具は、操作ボタン、バネ、係合部等を中留本体
のケース枠に収容し、中留本体を組み立てることによっ
て形成されているので、これらの部品の組立構成により
構造が複雑になるため小型化が困難であり、操作ボタン
を備えていない通常の中留具に比して中留本体の体積が
増大するという問題点がある。このような複雑な構造の
ままで無理に小型化を図ろうとすると、組立作業がさら
に困難なものとなる。A conventional clasp with an operating button is formed by assembling the clasp main body by accommodating the manipulation button, the spring, the engaging portion and the like in a case frame of the clasp main body. Therefore, it is difficult to miniaturize because the structure is complicated due to the assembly configuration of these parts, and the volume of the clasp main body increases compared to the ordinary clasp that does not have operation buttons. There is. If it is forcibly attempted to reduce the size with such a complicated structure, the assembling work becomes more difficult.
【０００５】また、上記時計バンドの中留具において
は、バネによって突出方向に付勢された操作ボタンを外
部に出ないように保持する必要がある。このため、従来
は中留本体を組み立てる前に操作ボタンを組み込み、そ
の後中留本体を組み立てることにより操作ボタンを中留
本体内に保持ことによって操作ボタンの脱出を防止する
ようにしていた。したがって、操作ボタンを有する中留
具においては、その組立に複雑な作業が必要になるとと
もに、部品が複雑な形状になり、しかも部品点数が多く
なるため、部品の加工工程や組立工程が増加するという
問題点があり、製造コストの増大を招いていた。Further, in the above-mentioned clasp of the timepiece band, it is necessary to hold the operation button urged by the spring in the protruding direction so as not to come out. For this reason, conventionally, an operation button is incorporated before assembling the clasp body, and then the clasp body is assembled to hold the manipulation button in the clasp body to prevent the manipulation button from escaping. Therefore, in a middle clasp having an operation button, a complicated work is required for its assembly, the parts have a complicated shape, and the number of parts is large, so that the number of parts processing steps and assembling steps are increased. There is a problem that the manufacturing cost is increased.
【０００６】そこで本発明は上記問題点を解決するもの
であり、その課題は、中留本体の全体構造、特に操作ボ
タンの保持構造或いは付勢構造を改善することにより、
操作ボタンを有する中留具であっても部品点数が少な
く、組立の容易な新規の中留具を実現することにある。Therefore, the present invention solves the above-mentioned problems, and an object thereof is to improve the overall structure of the clasp body, in particular, the operation button holding structure or the urging structure.
Even if it is a middle clasp which has an operation button, there is a small number of parts, and there exists in realizing a new middle clasp which is easy to assemble.
【０００７】[0007]
【課題を解決するための手段】上記課題を解決するため
に本発明が講じた手段は、一方のバンドの端部に取付け
られた中留本体に開閉部材を回動可能に取付けるととも
に、該中留本体に対して出没可能に取付けられた操作部
材を設け、他方のバンドの端部に取付けられた接続部を
前記中留本体と前記開閉部材との間に配置して前記開閉
部材を前記中留本体に係合できるように構成し、前記操
作部材を押圧することにより前記開閉部材を前記中留本
体から解放するように構成したバンドの中留具におい
て、前記中留本体には前記操作部材を挿入可能な収容部
と、該収容部に連通する開口部とを形成し、前記収容部
の奥部に弾性部材を収容した状態で前記操作部材を挿入
し、前記収容部の内面と前記操作部材の外面とに前記操
作部材の挿入後に相互に係止される係止構造を設けて前
記操作部材の前記収容部からの脱出を防止するととも
に、前記操作部材に前記開口部を通して前記開閉部材に
係合する係合構造を設けるものである。Means for Solving the Problems The means taken by the present invention to solve the above-mentioned problems are as follows: an opening / closing member is rotatably attached to a clasp body attached to the end of one of the bands. An operation member attached to the clasp main body so as to be retractable is provided, and a connecting portion attached to the end of the other band is arranged between the clasp main body and the opening / closing member to open the opening / closing member. A middle clasp of a band configured to be engageable with a clasp body and configured to release the opening / closing member from the clasp body by pressing the manipulation member, wherein the clasp body has the manipulation member. Is formed into an accommodating portion into which the elastic member can be inserted, and an opening communicating with the accommodating portion is formed. After inserting the operating member into the outer surface of the member, Thereby preventing the escape from the receiving portion of the operating member the locking structure is provided to be engaged in are those providing the engagement structure for engaging the closing member through the opening in the operating member.
【０００８】ここで、前記操作部材には、前記収容部の
内面に対して出没方向に変形する弾性部と該弾性部の表
面上に形成された係合部とを設け、前記収容部の内面に
は、前記操作部材の没入方向には係合せず前記操作部材
の突出方向には係合する被係合部を設けることが好まし
い。Here, the operating member is provided with an elastic portion that deforms in the retracting direction with respect to the inner surface of the accommodating portion and an engaging portion formed on the surface of the elastic portion, and the inner surface of the accommodating portion is formed. It is preferable to provide an engaged portion that does not engage in the retracting direction of the operating member but engages in the protruding direction of the operating member.
【０００９】また、前記収容部には、円弧状の突当り面
を有する奥部を形成し、該奥部に軸状弾性体で構成され
る前記弾性部材を前記突当り面に沿って湾曲状態に収容
し、前記弾性部材の両端部を前記操作部材に作用させて
付勢することが好ましい。Further, the accommodation portion is formed with a rear portion having an arcuate abutting surface, and the elastic member constituted by an axial elastic body is accommodated in a curved state along the abutment surface in the rear portion. However, it is preferable that both ends of the elastic member act on the operating member to urge the operating member.
【００１０】さらに、前記中留本体を、金属粉末に有機
バインダを混入して金型内に射出成形して形成した成形
体に前記有機バインダを除去する脱脂処置を施した後に
焼結して形成することが好ましい。Further, the middle distilling body is formed by mixing a metal powder with an organic binder and subjecting the molded body to injection molding in a mold and subjecting the molded body to degreasing to remove the organic binder, followed by sintering. Preferably.
【００１１】[0011]
【作用】請求項１によれば、中留本体に形成された収容
部に弾性部材を収容し、続いて操作部材を挿入して、係
止構造により操作部材を収容部内に係止した構造とする
だけで完成するため、部品点数が少なく、きわめて容易
に組立を行うことができる中留具を得ることができると
ともに製造コストを抑制できる。According to the present invention, the elastic member is accommodated in the accommodating portion formed in the clasp main body, the operating member is subsequently inserted, and the operating member is locked in the accommodating portion by the locking structure. Since it is completed only by doing, it is possible to obtain a middle clasp with a small number of parts and which can be assembled very easily, and to suppress the manufacturing cost.
【００１２】請求項２によれば、操作部材に設けられた
弾性部及び係合部により、操作部材の収容部への挿入時
には弾性部の変形により挿入可能であり、一旦操作部材
が収容部内に挿入されると、弾性部の弾性により係合部
の位置が復帰し、被係合部との係合により操作部材を収
容部内に保持することができるので、操作部材の保持の
ための他部品や取付作業を何ら必要としないため、部品
点数をさらに削減でき、きわめて容易に組立を行うこと
ができるとともに製造コストを抑制できる。According to the second aspect, the elastic portion and the engaging portion provided on the operation member allow the operation member to be inserted by deformation of the elastic portion when the operation member is inserted into the accommodation portion. When inserted, the position of the engaging portion returns due to the elasticity of the elastic portion, and the operating member can be retained in the accommodating portion by the engagement with the engaged portion. Since no mounting work is required, the number of parts can be further reduced, assembly can be performed very easily, and manufacturing cost can be suppressed.
【００１３】請求項３によれば、収容部の奥部に円弧状
の突当り面を形成し、この突当り面に沿って軸状弾性体
で構成される弾性部材を湾曲状態に収容し、この弾性部
材の両端面で操作部材を付勢するように構成したことに
より、弾性力を低下させることなく付勢構造をコンパク
トに収容することができ、しかも組立作業が容易になる
ため、中留本体の小型化を図ることができるとともに、
その製造コストを低減することができる。According to the third aspect of the present invention, an arcuate abutting surface is formed in the inner part of the accommodating portion, and the elastic member constituted by the axial elastic body is accommodated in a curved state along the abutting surface, and the elastic member is bent. Since the operation member is configured to be urged by both end surfaces of the member, the urging structure can be compactly housed without lowering the elastic force, and the assembling work is facilitated. It can be downsized and
The manufacturing cost can be reduced.
【００１４】請求項４によれば、上記請求項１の効果に
加えて、中留本体を金属粉末に有機バインダを混合して
射出成形した後に焼結することにより、収容部と開口部
とを一体的に備えた中留本体を容易に、高精度かつ均質
に形成することができる。According to a fourth aspect, in addition to the effect of the first aspect, the accommodating portion and the opening are formed by mixing the clasp body with an organic binder in a metal powder, injection molding the mixture, and sintering the mixture. The clasp body integrally provided can be easily and highly accurately and uniformly formed.
【００１５】[0015]
【実施例】次に、添付図面を参照して本発明に係るバン
ドの中留具の実施例を説明する。 〔第１実施例〕この実施例は腕時計のバンドに取付ける
ように構成されたものであり、図１にその平面図を、図
２に側面図を示す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the middle clasp of the present invention will be described below with reference to the accompanying drawings. [First Embodiment] This embodiment is constructed so as to be attached to a wristwatch band, and FIG. 1 is a plan view thereof and FIG. 2 is a side view thereof.
【００１６】本実施例は、一方の時計バンド８の一端に
取付けられる中留本体１０と、この中留本体１０に対し
て回動自在に取付けられた開閉部材２０とからなる。中
留本体１０と開閉部材２０の間に、図示しない他方の時
計バンドの端部に取付けられた枠金具３０の接続軸３１
を収容し、この状態で開閉部材２０を中留本体１０の上
から閉鎖することにより２つの時計バンドが接続される
ようになっている。This embodiment comprises a clasp main body 10 attached to one end of one watch band 8 and an opening / closing member 20 rotatably attached to the clasp main body 10. Between the clasp body 10 and the opening / closing member 20, the connecting shaft 31 of the frame fitting 30 attached to the end of the other watch band (not shown).
The watch band is connected by closing the opening / closing member 20 from the top of the clasp main body 10 in this state.
【００１７】中留本体１０には、中央上面に円形の係合
穴１２が穿設され、この係合穴１２は、側面から穿設さ
れた断面矩形の収容部１３に繋がっている。収容部１３
は、その奥部１３ａに水平面と円弧で交差するように円
弧状に形成された突当り面１３ｂを備えている。奥部１
３ａには、コイルスプリング１４が突当り面１３ｂに沿
って湾曲状態に収容され、その端部１４ａ，１４ｂを収
容部１３の開口部に向けている。A circular engagement hole 12 is formed in the central upper surface of the clasp main body 10, and the engagement hole 12 is connected to an accommodating portion 13 having a rectangular cross section formed from the side surface. Housing 13
Has an abutting surface 13b formed in an arc shape so as to intersect with a horizontal plane in an arc at the inner portion 13a. Back part 1
The coil spring 14 is accommodated in the curved surface 3a along the abutment surface 13b, and the ends 14a and 14b thereof are directed to the opening of the accommodating portion 13.
【００１８】収容部１３には断面矩形の操作部材１５が
挿入されており、この操作部材１５の先端部の中央には
やや突出した凸部１５ａが形成され、凸部１５ａの両側
には、コイルスプリング１４の端部１４ａ，１４ｂに当
接する座面１５ｂ，１５ｃが形成されている。操作部材
１５の後端部は、中留本体１０から外部に僅かに突出て
おり、操作面１５ｄとなっている。An operating member 15 having a rectangular cross section is inserted into the accommodating portion 13, a slightly projecting convex portion 15a is formed at the center of the tip of the operating member 15, and a coil is provided on both sides of the convex portion 15a. Seating surfaces 15b and 15c that abut the ends 14a and 14b of the spring 14 are formed. The rear end portion of the operation member 15 slightly protrudes from the clasp main body 10 to the outside and serves as an operation surface 15d.
【００１９】操作部材１５の中央には、先端側の半円と
後端側の長方形とを合体させた平面形状を持つ切欠部１
６が形成され、この切欠部１６の後端側から、弾性腕部
１７が突出形成されている。弾性腕部１７の先端には、
上方に突出した係合部１８が形成されている。切欠部１
６の奥部１３ａ側の半円状の縁部には、上方に向いたテ
ーパ面１９が形成されている。In the center of the operating member 15, a notch 1 having a planar shape in which a semicircle on the front end side and a rectangle on the rear end side are united.
6 is formed, and the elastic arm portion 17 is formed so as to project from the rear end side of the cutout portion 16. At the tip of the elastic arm 17,
An engaging portion 18 protruding upward is formed. Notch 1
A taper surface 19 facing upward is formed on the semi-circular edge portion of 6 on the inner side 13a side.
【００２０】中留本体からは取付板部４１が突出形成さ
れており、この取付板部４１の先端に軸受部４２が形成
されている。この軸受部４２の両側には、開閉部材２０
の一端に一対設けられた軸支部２１，２１が配置され、
キー２２ａを備えた回動軸２２が軸受部４２及び軸支部
２１を挿通することによって、開閉部材２０が回動自在
に取りつけられている。A mounting plate portion 41 is formed so as to project from the clasp body, and a bearing portion 42 is formed at the tip of this mounting plate portion 41. The opening / closing member 20 is provided on both sides of the bearing portion 42.
A pair of shaft support portions 21 and 21 are arranged at one end of
The opening / closing member 20 is rotatably attached by inserting the rotary shaft 22 including the key 22a into the bearing portion 42 and the shaft support portion 21.
【００２１】なお、中留本体１０には、時計バンド８の
端部に接続するための接続軸を圧入するための取付孔１
１ａを備えた取付部１１が形成されている。The clasp body 10 has a mounting hole 1 for press-fitting a connecting shaft for connecting to the end of the watch band 8.
A mounting portion 11 having 1a is formed.
【００２２】図３には、図２のIII −III 線に沿って切
断した状態を示す。開閉部材２０には下方に突出する係
合突起２３が設けられ、この係合突起２３には、操作部
材１５の操作面１５ｄ側に形成された凹部２３ａと、奥
部１３ａ側に設けられた保持溝２３ｂとが形成されてい
る。操作部材１５の弾性腕部１７の先端に設けられた係
合部１８は、ちょうど凹部２３ａによって形成された空
間内に配置され、中留本体１０の係合穴１２の内周面１
２ａに係合している。FIG. 3 shows a state cut along the line III-III in FIG. The opening / closing member 20 is provided with an engaging projection 23 protruding downward, and the engaging projection 23 has a recess 23a formed on the operation surface 15d side of the operating member 15 and a holding part provided on the inner side 13a side. The groove 23b is formed. The engaging portion 18 provided at the tip of the elastic arm portion 17 of the operating member 15 is disposed in the space formed by the concave portion 23a, and the inner peripheral surface 1 of the engaging hole 12 of the clasp body 10 is disposed.
2a is engaged.
【００２３】操作部材１５は奥部１３ａに収容されたコ
イルスプリング１４の弾性によって常時突出方向に付勢
されており、この圧力により切欠部１６における奥部１
３ａ側の縁部１５ｅは保持溝２３ｂに押し付けられて嵌
合し、開閉部材２０を閉鎖状態に保持している。The operating member 15 is constantly urged in the projecting direction by the elasticity of the coil spring 14 housed in the inner portion 13a, and this pressure causes the inner portion 1 of the notch 16 to be extended.
The edge portion 15e on the 3a side is pressed and fitted into the holding groove 23b to hold the opening / closing member 20 in a closed state.
【００２４】操作部材１５は、収容部１３内にコイルス
プリング１４を収容した後、係合部１８を軽く押し下げ
るようにして挿入することにより容易に挿入される。操
作部材１５は、係合部１８が収容部１３の内面に押され
て弾性腕部１７が下方へ湾曲した状態で挿入される。図
３の状態まで操作部材１５が挿入されると、係合部１８
はその弾性により上方へ復帰し、係合穴１２の内周面１
２ａに係合する。このようにして一旦操作部材１５が装
着されると、操作部材１５は収容部１３内に保持され
る。The operating member 15 can be easily inserted by inserting the coil spring 14 into the accommodating portion 13 and then by pushing down the engaging portion 18 lightly. The operation member 15 is inserted in a state where the engaging portion 18 is pushed by the inner surface of the housing portion 13 and the elastic arm portion 17 is curved downward. When the operating member 15 is inserted to the state shown in FIG. 3, the engaging portion 18
Returns upward due to its elasticity, and the inner peripheral surface 1 of the engaging hole 12
2a. Once the operating member 15 is mounted in this manner, the operating member 15 is held in the housing portion 13.
【００２５】操作部材１５の操作面１５ｄを指等で押圧
すると、コイルスプリング１４の弾性に逆らって操作部
材１５は収容部１３の奥部１３ａ側へ移動し、縁部１５
ｅは保持溝２３ｂから脱出し、開閉部材２０を開放す
る。開閉部材２０を上方へ回動させると接続軸３１は解
放され、枠金具３０を取り外すことが可能になる。逆に
開閉部材２０を閉鎖する場合には、中留本体１０の係合
穴１２に係合突起２３を突入させ、係合突起２３の先端
部でテーパ面１９を押し下げることにより、操作部材１
５をコイルスプリング１４の弾性に逆らって奥部１３ａ
側に移動させることができ、操作部材１５の移動ととも
に開閉部材２０の係合突起２３を挿入し、縁部１５ｅを
保持溝２３ｂに係合させる。When the operating surface 15d of the operating member 15 is pressed with a finger or the like, the operating member 15 moves to the inner portion 13a side of the accommodating portion 13 against the elasticity of the coil spring 14, and the edge portion 15 is pressed.
e escapes from the holding groove 23b and opens the opening / closing member 20. When the opening / closing member 20 is rotated upward, the connection shaft 31 is released, and the frame fitting 30 can be removed. On the contrary, when the opening / closing member 20 is closed, the engaging projection 23 is inserted into the engaging hole 12 of the clasp main body 10, and the tapered surface 19 is pushed down by the tip of the engaging projection 23.
5 against the elasticity of the coil spring 14
When the operating member 15 is moved, the engaging projection 23 of the opening / closing member 20 is inserted and the edge portion 15e is engaged with the holding groove 23b.
【００２６】なお、一旦装着した操作部材１５は、上記
構造により収容部１３から飛び出ないように保持されて
いるが、修理等の必要性から操作部材１５を取り外す場
合には、係合穴１２を通してピン等の軸材の先端を係合
部１８に押し当て、係合部１８を下方へ押し下げること
により、係合部１８と係合穴１２の内周面１２ａとの係
合を解き、操作部材１５を再び引き出すことができる。The operating member 15 once attached is held by the above structure so as not to pop out from the accommodating portion 13. However, when the operating member 15 is removed for repair or the like, it is inserted through the engaging hole 12. The tip of a shaft member such as a pin is pressed against the engaging portion 18, and the engaging portion 18 is pushed downward to release the engagement between the engaging portion 18 and the inner peripheral surface 12a of the engaging hole 12, thereby operating the operating member. 15 can be withdrawn again.
【００２７】この実施例においては、中留本体、操作部
材及び開閉部材から構成され、中留本体に挿入された操
作部材と開閉部材とが係合するように構成したので、簡
易な構成にも拘わらず、確実なバンド接続が可能であ
り、組立も容易になる。これらの中留具の各部品は、ス
テンレス鋼、チタン合金等の耐蝕性のある金属材料や合
成樹脂により形成することが好ましい。合成樹脂を用い
る場合には射出成形法を使用する。In this embodiment, the clasp main body, the operating member and the opening / closing member are constituted, and the operating member inserted into the clasp main body and the opening / closing member are engaged with each other. Regardless, reliable band connection is possible and assembly is easy. It is preferable that each component of these middle clasps is made of a corrosion-resistant metal material such as stainless steel or titanium alloy, or a synthetic resin. When using a synthetic resin, an injection molding method is used.
【００２８】ここで、特に中留本体を金属材料で形成す
る場合には、ステンレス鋼、チタン合金等の金属粉末に
有機バインダを混合してコンパウンドを形成し、これを
金型内に射出成形することにより所望の成形体を形成
し、この成形体に脱脂処理を施した後に、焼結する方法
により形成する金属射出成形法（METAL INJECTION MOLD
ING PROCESS)を用いることが好ましい。この方法では、
特に金属粉末の平均粒径を４４μｍ以下の微粉末とし、
有機バインダの配合量を４０〜５０ｖｏｌ％とすること
が成形性及び保形性の観点から見て望ましい。また、脱
脂処理は還元雰囲気、不活性雰囲気若しくは真空中で有
機バインダを気化又は分解して除去可能な温度に加熱す
ることにより行い、焼結は還元雰囲気、不活性雰囲気若
しくは真空中で金属粉末の焼結に必要な温度まで昇温し
て行う。Here, particularly when the clasp body is made of a metal material, a metal powder such as stainless steel or titanium alloy is mixed with an organic binder to form a compound, which is injection-molded in a mold. To form a desired molded body, degreasing the molded body, and then sintering it to form a metal injection molding method (METAL INJECTION MOLD).
ING PROCESS) is preferably used. in this way,
In particular, fine powder having an average particle size of the metal powder of 44 μm or less,
From the viewpoint of moldability and shape retention, it is desirable that the compounding amount of the organic binder be 40 to 50 vol%. The degreasing treatment is performed by heating the organic binder in a reducing atmosphere, an inert atmosphere or a vacuum to a temperature at which it can be vaporized or decomposed and removed, and the sintering is performed in a reducing atmosphere, an inert atmosphere or a vacuum to remove the metal powder. The temperature is raised to the temperature required for sintering.
【００２９】このように、金属射出成形法により中留本
体を形成することにより、収容部や開口部を有する複雑
な構造を一体のものとして容易に、また高い寸法精度で
均質に製造することができ、しかも製造コストを低減す
ることが可能になる。この場合、操作部材や開閉部材に
ついても同様の方法で成形することができる。As described above, by forming the clasp body by the metal injection molding method, it is possible to easily manufacture a complex structure having a housing portion and an opening as an integrated body and to manufacture it uniformly with high dimensional accuracy. In addition, the manufacturing cost can be reduced. In this case, the operating member and the opening / closing member can be molded by the same method.
【００３０】本実施例では、操作部材に弾性腕部を設け
て、その先端に係合部を形成したので、操作部材を中留
本体の収容部に挿入するだけで組立が完了し、他の接続
部品も必要としないから、部品点数が少なく、組立コス
トも低減できる。In this embodiment, the operating member is provided with the elastic arm portion and the engaging portion is formed at the tip thereof, so that the assembly is completed only by inserting the operating member into the accommodating portion of the clasp body. Since no connecting parts are required, the number of parts is small and the assembly cost can be reduced.
【００３１】さらに、中留本体の収容部の奥部に円弧状
の突当り面を形成し、ここにコイルスプリングを湾曲状
態に収容し、コイルスプリングの両端部で操作部材を付
勢するようにしたため、スプリングの占有体積を削減で
きるとともに大きな弾性力を得ることができるから、中
留本体の小型化を図りつつ、確実な操作性を得ることが
可能になる。Further, since the arcuate abutting surface is formed in the inner part of the accommodating portion of the clasp main body, the coil spring is accommodated in a curved state, and the operating member is urged by both ends of the coil spring. Since the volume occupied by the spring can be reduced and a large elastic force can be obtained, it is possible to obtain a reliable operability while reducing the size of the clasp body.
【００３２】〔第２実施例〕本発明に係る第２実施例の
平面図を図４に、縦断面図を図５に示す。この実施例は
上記第１実施例とはほぼ同様の構造を有するが、操作部
材の構造が異なる。この実施例の操作部材４５には平面
円形の切欠部４６が設けられ、この切欠部４６の縁部４
６ａの周囲には上方に向いたテーパ面４７が形成されて
いる。操作部材４５の側面には凹部４８が形成されてお
り、この凹部４８に対応した位置に、中留本体の底面か
ら止めネジ４９が螺入されている。止めネジ４９は収容
部１３の底面から内部に突出し、凹部４８内に進入して
いる。[Second Embodiment] A plan view of a second embodiment according to the present invention is shown in FIG. 4, and a longitudinal sectional view thereof is shown in FIG. This embodiment has almost the same structure as the first embodiment, but the structure of the operating member is different. The operating member 45 of this embodiment is provided with a cutout portion 46 having a circular plane shape, and the edge portion 4 of the cutout portion 46 is provided.
A tapered surface 47 facing upward is formed around 6a. A recess 48 is formed on the side surface of the operating member 45, and a set screw 49 is screwed into the position corresponding to the recess 48 from the bottom surface of the clasp body. The set screw 49 projects inward from the bottom surface of the housing portion 13 and enters the recess 48.
【００３３】この実施例でも上記第１実施例と同様に、
操作部材４５を押すと縁部４６ａが保持溝２３ｂから脱
出し、開閉部材２０を解放する。この実施例では中留本
体１０の収容部１３内にコイルスプリング１４を収容
し、操作部材１５を挿入してから、止めネジ４９を装着
するだけで組立は完了する。Also in this embodiment, as in the first embodiment,
When the operating member 45 is pushed, the edge portion 46a comes out of the holding groove 23b, and the opening / closing member 20 is released. In this embodiment, the coil spring 14 is accommodated in the accommodating portion 13 of the clasp main body 10, the operating member 15 is inserted, and then the setscrew 49 is attached to complete the assembly.
【００３４】この実施例では、操作部材４５の挿入後に
中留本体の底面に止めネジ４９を装着する必要はあるも
のの、操作部材４５には凹部４８を設けるだけでよく、
操作部材の加工が容易になるとともに、中留本体の分解
も容易である。In this embodiment, although it is necessary to mount the set screw 49 on the bottom surface of the clasp main body after inserting the operating member 45, it is only necessary to provide the operating member 45 with the recess 48.
The operation member can be easily processed, and the clasp body can be easily disassembled.
【００３５】〔第３実施例〕図６は、本発明に係る第３
実施例の構造を示す平面図である。この実施例では操作
部材及び収容部の係合構造以外は上記第１実施例と同様
であるので、同一部分には同一符号を付し、その説明は
省略する。[Third Embodiment] FIG. 6 shows a third embodiment of the present invention.
It is a top view which shows the structure of an Example. Since this embodiment is the same as the first embodiment except for the engaging structure of the operating member and the accommodating portion, the same parts are designated by the same reference numerals and the description thereof will be omitted.
【００３６】本実施例では、操作部材５５の側面部に弾
性腕部５６が設けられ、この弾性腕部５６の先端に側方
に突出する係合部５７が形成されている。収容部５３の
側面には凹部５３ｃが形成され、操作部材５５が深く挿
入されると、係合部５７が凹部５３ｃに係合し、操作部
材５５が保持されるようになっている。In this embodiment, an elastic arm portion 56 is provided on the side surface portion of the operating member 55, and an engaging portion 57 protruding laterally is formed at the tip of this elastic arm portion 56. A concave portion 53c is formed on the side surface of the housing portion 53, and when the operating member 55 is inserted deeply, the engaging portion 57 engages with the concave portion 53c, and the operating member 55 is held.
【００３７】この実施例も第１実施例と同様に弾性腕部
の先端に係合部を設け、操作部材の脱出を規制してい
る。ここで、例えば中留本体１０における凹部５３ｃの
底面側若しくは接続部１１側に開口を形成し、この開口
を通してピン等により係合部５７の係合を解くことがで
きるように構成してもよい。Also in this embodiment, similarly to the first embodiment, an engaging portion is provided at the tip of the elastic arm portion to regulate the escape of the operating member. Here, for example, an opening may be formed on the bottom surface side of the recess 53c of the clasp body 10 or on the connection portion 11 side, and the engagement portion 57 may be disengaged by a pin or the like through this opening. .
【００３８】〔第４実施例〕図７は、本発明に係る第４
実施例の構造を示す断面図である。この実施例では操作
部材６５の上面に凹溝６５ｅが形成され、この凹溝６５
ｅに臨む弾性腕部６６が形成されている。また、この弾
性腕部６６の先端寄りには係合部６７が形成されてい
る。一方、中留本体１０の収容部６３には、弾性腕部６
６上の凹溝６５ａ内に突出する係合凸部６３ｃが設けら
れている。[Fourth Embodiment] FIG. 7 shows a fourth embodiment according to the present invention.
It is sectional drawing which shows the structure of an Example. In this embodiment, a concave groove 65e is formed on the upper surface of the operating member 65, and the concave groove 65e is formed.
An elastic arm portion 66 that faces e is formed. An engaging portion 67 is formed near the tip of the elastic arm portion 66. On the other hand, the accommodating portion 63 of the clasp main body 10 includes the elastic arm portion 6
An engaging convex portion 63c that projects into the concave groove 65a on the upper portion 6 is provided.
【００３９】この実施例では、収容部６３から突出する
係合凸部６３ｃに係合部６７が当接することにより、操
作部材６５が保持される。In this embodiment, the operating member 65 is held by the engaging projection 67c that abuts the receiving projection 63c.
【００４０】[0040]
【発明の効果】以上説明したように本発明は以下の効果
を奏する。As described above, the present invention has the following effects.
【００４１】請求項１によれば、中留本体に形成された
収容部に弾性部材を収容し、続いて操作部材を挿入し
て、係止構造により操作部材を収容部内に係止した構造
とするだけで完成するため、部品点数が少なく、きわめ
て容易に組立を行うことができる中留具を得ることがで
きるとともに製造コストを抑制できる。According to the first aspect, the elastic member is accommodated in the accommodating portion formed in the clasp main body, the operating member is subsequently inserted, and the operating member is locked in the accommodating portion by the locking structure. Since it is completed only by doing, it is possible to obtain a middle clasp with a small number of parts and which can be assembled very easily, and to suppress the manufacturing cost.
【００４２】請求項２によれば、操作部材に設けられた
弾性部及び係合部により、操作部材の収容部への挿入時
には弾性部の変形により挿入可能であり、一旦操作部材
が収容部内に挿入されると、弾性部の弾性により係合部
の位置が復帰し、被係合部との係合により操作部材を収
容部内に保持することができるので、操作部材の保持の
ための他部品や取付作業を何ら必要としないため、部品
点数をさらに削減でき、きわめて容易に組立を行うこと
ができるとともに製造コストを抑制できる。According to the second aspect, the elastic portion and the engaging portion provided on the operating member allow the operating member to be inserted by deformation of the elastic portion when the operating member is inserted into the accommodating portion, and the operating member is once inserted into the accommodating portion. When inserted, the position of the engaging portion returns due to the elasticity of the elastic portion, and the operating member can be retained in the accommodating portion by the engagement with the engaged portion. Since no mounting work is required, the number of parts can be further reduced, assembly can be performed very easily, and manufacturing cost can be suppressed.
【００４３】請求項３によれば、収容部の奥部に円弧状
の突当り面を形成し、この突当り面に沿って軸状弾性体
で構成される弾性部材を湾曲状態に収容し、この弾性部
材の両端面で操作部材を付勢するように構成したことに
より、弾性力を低下させることなく付勢構造をコンパク
トに収容することができ、しかも組立作業が容易になる
ため、中留本体の小型化を図ることができるとともに、
その製造コストを低減することができる。According to the third aspect, an arcuate abutting surface is formed in the inner part of the accommodating portion, and the elastic member constituted by the axial elastic body is accommodated in a curved state along the abutting surface, and this elastic Since the operation member is configured to be urged by both end surfaces of the member, the urging structure can be compactly housed without lowering the elastic force, and the assembling work is facilitated. It can be downsized and
The manufacturing cost can be reduced.
【００４４】請求項４によれば、中留本体に形成された
収容部に弾性部材を収容し、続いて操作部材を挿入し
て、係止構造により操作部材を収容部内に係止した構造
とするだけで完成するため、部品点数が少なく、きわめ
て容易に組立を行うことができる中留具を得ることがで
きるとともに製造コストを抑制できる。また、中留本体
を金属粉末に有機バインダを混合して射出成形した後に
焼結することにより、収容部と開口部とを一体的に備え
た中留本体を容易に、高精度かつ均質に形成することが
できる。According to the fourth aspect, the elastic member is accommodated in the accommodating portion formed in the clasp main body, the operating member is subsequently inserted, and the operating member is locked in the accommodating portion by the locking structure. Since it is completed only by doing, it is possible to obtain a middle clasp with a small number of parts and which can be assembled very easily, and to suppress the manufacturing cost. In addition, the middle clasp main body with the accommodating portion and the opening integrally formed can be easily and accurately and homogeneously formed by mixing the clasp main body with the metal powder and the organic binder, and then sintering the mixture. can do.
【図１】本発明に係るバンドの中留具の第１実施例の構
造を示す平面図である。FIG. 1 is a plan view showing the structure of a first embodiment of a center clasp of the band according to the present invention.
【図２】第１実施例の側面図である。FIG. 2 is a side view of the first embodiment.
【図３】図２に示すIII −III 線に沿って切断した状態
を示す第１実施例の縦断面図である。FIG. 3 is a vertical sectional view of the first embodiment showing a state of being cut along the line III-III shown in FIG.
【図４】本発明に係るバンドの中留具の第２実施例の構
造を示す平面図である。FIG. 4 is a plan view showing the structure of a second embodiment of the center clasp of the band according to the present invention.
【図５】第２実施例の縦断面図である。FIG. 5 is a longitudinal sectional view of a second embodiment.
【図６】本発明に係るバンドの中留具の第３実施例の構
造を示す平面図である。FIG. 6 is a plan view showing the structure of a third embodiment of the middle clasp of the band according to the present invention.
【図７】本発明に係るバンドの中留具の第４実施例の構
造を示す縦断面図である。FIG. 7 is a vertical cross-sectional view showing the structure of a fourth embodiment of the center clasp of the band according to the present invention.
１０ 中留本体 １３ 収容部 １３ａ 奥部 １３ｂ 突当り面 １４ コイルスプリング １５ 操作部材 １７ 弾性腕部 １８ 係合部 ２０ 開閉部材 ３０ 枠金具 10 Nakadome Main Body 13 Housing 13a Back 13b Collision Surface 14 Coil Spring 15 Operating Member 17 Elastic Arm 18 Engagement Part 20 Opening / Closing Member 30 Frame Metal Fitting
Claims (4)
本体に開閉部材を回動可能に取付けるとともに、該中留
本体に対して出没可能に取付けられた操作部材を設け、
他方のバンドの端部に取付けられた接続部を前記中留本
体と前記開閉部材との間に配置して前記開閉部材を前記
中留本体に係合できるように構成し、前記操作部材を押
圧することにより前記開閉部材を前記中留本体から解放
するように構成したバンドの中留具において、 前記中留本体には前記操作部材を挿入可能な収容部と、
該収容部に連通する開口部とを形成し、前記収容部の奥
部に弾性部材を収容した状態で前記操作部材を挿入し、
前記収容部の内面と前記操作部材の外面とに前記操作部
材の挿入後に相互に係止される係止構造を設けて前記操
作部材の前記収容部からの脱出を防止するとともに、前
記操作部材に前記開口部を通して前記開閉部材に係合す
る係合構造を設けたことを特徴とするバンドの中留具。1. An opening / closing member is rotatably attached to a clasp body attached to an end of one of the bands, and an operating member is provided so as to be retractable from the clasp body.
A connecting portion attached to the end of the other band is arranged between the clasp body and the opening / closing member so that the opening / closing member can be engaged with the clasp body and presses the operating member. In the clasp tool of the band configured to release the opening / closing member from the clasp body by doing, a housing portion into which the operation member can be inserted in the clasp body,
An opening communicating with the housing is formed, and the operation member is inserted with the elastic member housed in the inner part of the housing,
A locking structure is provided on the inner surface of the accommodating portion and the outer surface of the operating member so as to be mutually locked after the operation member is inserted to prevent the operating member from escaping from the accommodating portion, and to the operating member. An inner retaining device for a band, characterized in that an engaging structure for engaging with the opening / closing member through the opening is provided.
前記収容部の内面に対して出没方向に変形する弾性部と
該弾性部の表面上に形成された係合部とを設け、前記収
容部の内面には、前記操作部材の没入方向には係合せず
前記操作部材の突出方向には係合する被係合部を設けた
ことを特徴とするバンドの中留具。2. The operating member according to claim 1, wherein
An elastic portion that deforms in the retracting direction with respect to the inner surface of the accommodating portion and an engaging portion formed on the surface of the elastic portion are provided, and the inner surface of the accommodating portion is engaged in the retracting direction of the operation member. A middle clasp of a band, characterized in that an engaged portion is provided which is engaged with the operating member in the protruding direction thereof.
弧状の突当り面を有する奥部を形成し、該奥部に軸状弾
性体で構成される前記弾性部材を前記突当り面に沿って
湾曲状態に収容し、前記弾性部材の両端部を前記操作部
材に作用させて付勢したことを特徴とするバンドの中留
具。3. The housing according to claim 1, wherein a rear portion having an arc-shaped abutting surface is formed in the accommodation portion, and the elastic member formed of a shaft-like elastic body is provided in the rear portion along the abutting surface. The inner fastener of the band is characterized in that the elastic member is housed in a curved state, and both ends of the elastic member are urged by acting on the operating member.
本体に開閉部材を回動可能に取付けるとともに、該中留
本体に対して出没可能に取付けられた操作部材を設け、
他方のバンドの端部に取付けられた接続部を前記中留本
体と前記開閉部材との間に配置して前記開閉部材を前記
中留本体に係合できるように構成し、前記操作部材を押
圧することにより前記開閉部材を前記中留本体から解放
するように構成したバンドの中留具の製造方法におい
て、 前記操作部材の挿入可能な収容部と、該収容部に連通す
る開口部とを設けた前記中留本体を、金属粉末に有機バ
インダを混入して金型内に射出成形して形成した成形体
に前記有機バインダを除去する脱脂処置を施した後に焼
結して形成し、前記収容部の奥部に弾性部材を収容した
状態で、前記開口部を通して前記開閉部材に係合する係
合構造を設けた前記操作部材を挿入し、前記収容部の内
面と前記操作部材の外面とに形成された係止構造により
前記操作部材の挿入後に相互に係止させて前記操作部材
の前記収容部からの脱出を防止することを特徴とするバ
ンドの中留具の製造方法。4. An opening / closing member is rotatably attached to a clasp body attached to an end of one of the bands, and an operating member is provided so as to be retractable from the clasp body.
A connecting portion attached to the end of the other band is arranged between the clasp body and the opening / closing member so that the opening / closing member can be engaged with the clasp body and presses the operating member. In the method of manufacturing the clasp of the band configured to release the opening / closing member from the clasp main body by providing the accommodating portion into which the operation member can be inserted, and the opening communicating with the accommodating portion are provided. The middle clasp body is formed by mixing a metal powder with an organic binder and injection-molding the molded body into a mold, performing degreasing treatment to remove the organic binder, and then sintering the molded body. With the elastic member accommodated in the inner part of the portion, the operation member provided with an engagement structure that engages with the opening / closing member is inserted through the opening, and is inserted into the inner surface of the accommodation part and the outer surface of the operation member. Due to the formed locking structure of the operating member A method of manufacturing a middle clasp of a band, wherein the operation members are locked to each other after insertion to prevent the operation members from coming out of the accommodation portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16055195A JPH0910021A (en) | 1995-06-27 | 1995-06-27 | Intermediate fastener of band and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16055195A JPH0910021A (en) | 1995-06-27 | 1995-06-27 | Intermediate fastener of band and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0910021A true JPH0910021A (en) | 1997-01-14 |
Family
ID=15717442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16055195A Pending JPH0910021A (en) | 1995-06-27 | 1995-06-27 | Intermediate fastener of band and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0910021A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100339446C (en) * | 2002-04-15 | 2007-09-26 | 日本瑞翁株式会社 | Varnish, shaped item, electrical insulating film, laminate, flame retardant slurry and process for producing flame retardant particle and varnish |
-
1995
- 1995-06-27 JP JP16055195A patent/JPH0910021A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100339446C (en) * | 2002-04-15 | 2007-09-26 | 日本瑞翁株式会社 | Varnish, shaped item, electrical insulating film, laminate, flame retardant slurry and process for producing flame retardant particle and varnish |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20040803 |