JP2003090474A

JP2003090474A - Hose clamp

Info

Publication number: JP2003090474A
Application number: JP2002070848A
Authority: JP
Inventors: Mineo Muto; 峰雄武藤; Yuji Nakamura; 裕司中村
Original assignee: Togo Seisakusho Corp
Current assignee: Togo Seisakusho Corp
Priority date: 2001-07-11
Filing date: 2002-03-14
Publication date: 2003-03-28
Anticipated expiration: 2022-03-14
Also published as: JP3851578B2

Abstract

PROBLEM TO BE SOLVED: To easily deform a hose clamp from a diameter-enlarged condition into a diameter reduced condition. SOLUTION: A first pick-up piece 13 is formed on one side of a hose clamp 10, and a second pick-up piece 17 is formed on the other side. An operation part 14, to which a lock hole 15 is opened, is formed at the tip of the first pick-up piece 13, and a lock pawl 18 is installed to the second pick-up piece 17. The lock pawl 18 and the lock hole 15 are locked while both of the pick-up pieces 13 and 17 are offset in a radial direction under a diameter-enlarged condition. Therefore, when it is returned to the diameter-reduced condition, locking can be released by only a pick-up operation in a direction such that both of the pick-up pieces 13 and 17 approach each other, so that the clamp hose can be easily deformed to the diameter-reduced condition.

Description

Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は、ホースクランプに
関する。TECHNICAL FIELD The present invention relates to a hose clamp.

【０００２】[0002]

【従来の技術】自らの弾性力を利用してホースを緊締す
るホースクランプでは、現場作業を考慮して予め拡径状
態に保持して搬入できることが望ましい。この拡径状態
の保持方法としては、ホースクランプとは別体のホルダ
により両摘み片を把持するホルダタイプが知られてい
る。しかしこの方法では拡径解除時にホルダを抜くと、
ホースクランプの弾性力のためにホルダが弾き飛ばされ
て現場に散乱するという問題があった。そこで、ホース
クランプ自体に拡径状態を保持可能な機能を備えたホル
ダレスタイプのものが普及しつつある。2. Description of the Related Art In a hose clamp for tightening a hose by utilizing its own elastic force, it is desirable that the hose clamp can be carried in with the diameter expanded in advance in consideration of site work. As a method for holding the expanded diameter state, a holder type is known in which both grips are held by a holder separate from the hose clamp. However, with this method, if you remove the holder when releasing the expansion,
Due to the elastic force of the hose clamp, the holder was thrown off and scattered at the site. Therefore, holder-less type hose clamps having a function capable of holding the expanded diameter state are becoming popular.

【０００３】その一例として実開平６−６９５８１号公
報に開示されているものが知られている。図２９に示す
ホースクランプ１は帯状の板ばね材を円環状に回曲した
ものであり、自由状態にて縮径状態を保っている。ま
た、その周方向において拡径状態への変形が可能となっ
ており、対向する両摘み片２，４を近接させ係止爪５が
保持爪３に摺接すると両摘み片２，４は相対的に軸方向
へずれ、係止爪５が保持爪３を乗り越えた後弾性復帰す
ることにより係止され拡径状態に保持できるようになっ
ている。この拡径状態を解除するためには両摘み片２，
４をホースクランプ１の軸方向へ相対移動させることで
保持爪３と係止爪５との係止が強制的に解除され、ホー
スクランプ１は自らの弾性力により縮径状態へ変形し、
ホースを緊締可能となっている。As one example thereof, the one disclosed in Japanese Utility Model Laid-Open No. 6-69581 is known. The hose clamp 1 shown in FIG. 29 is formed by bending a strip-shaped leaf spring material into an annular shape, and keeps a reduced diameter in a free state. In addition, it is possible to deform to a radially expanded state in the circumferential direction, and when both opposing gripping pieces 2 and 4 are brought close to each other and the locking claw 5 is brought into sliding contact with the holding claw 3, both gripping pieces 2 and 4 are relatively moved. When the locking claw 5 moves over the holding claw 3 and elastically returns after the locking claw 5 has passed over the holding claw 3, the locking claw 5 can be locked and held in the expanded diameter state. To release this expanded state, both knobs 2,
By relatively moving 4 in the axial direction of the hose clamp 1, the locking between the holding claw 3 and the locking claw 5 is forcibly released, and the hose clamp 1 is deformed to a reduced diameter state by its own elastic force.
The hose can be tightened.

【０００４】[0004]

【発明が解決しようとする課題】ところで、上記したよ
うに拡径状態から縮径状態に変形させるには、保持爪３
と係止爪５との係止を解除する必要があるためホースク
ランプ１の軸方向への操作を行わなければならない。こ
れは両摘み片２，４の幅方向の端面に工具６などを当接
させて挟みつけるという操作になる。しかし、この端面
はホースクランプ１の板厚分でしかなく工具６との接触
面積が少ない上に、両摘み片２，４は周方向において近
接しているため市販されている工具６では挟みにくく力
も加え難い。By the way, as described above, in order to deform the expanded state from the expanded state, the holding claw 3
Since it is necessary to release the locking between the locking claw 5 and the locking claw 5, the hose clamp 1 must be operated in the axial direction. This is an operation in which a tool 6 or the like is brought into contact with and sandwiched by the end faces in the width direction of the two gripping pieces 2, 4. However, since this end face is only the plate thickness of the hose clamp 1 and has a small contact area with the tool 6, and both gripping pieces 2 and 4 are close to each other in the circumferential direction, it is difficult to pinch with a commercially available tool 6. It is difficult to add force.

【０００５】本発明は上記のような事情に基づいて完成
されたものであって、拡径状態から縮径状態への変形を
容易に行うことができるホースクランプを提供すること
を目的とする。The present invention was completed in view of the above circumstances, and an object of the present invention is to provide a hose clamp which can be easily deformed from an expanded state to a reduced state.

【０００６】[0006]

【課題を解決するための手段】請求項１の発明は、板ば
ね材を円環状に回曲してなるクランプ本体と、このクラ
ンプ本体の一端側で径方向外方にアーチ状に起立した第
１摘み片と、他端側で径方向外方に起立し前記第１摘み
片のアーチ部分を通過して前記第１摘み片と対向する第
２摘み片と、前記両摘み片に設けられ相互に係止し合う
ことで前記クランプ本体を拡径状態に保持する係止手段
とを備えたホースクランプであって、前記係止手段は、
前記両摘み片が正対する中立状態から前記両摘み片をク
ランプ本体の周方向と直交する方向へずれたオフセット
状態で係止して前記拡径状態を保持可能となっているこ
とを特徴とするものである。According to a first aspect of the present invention, there is provided a clamp main body formed by bending a leaf spring material in an annular shape, and a first end of the clamp main body that is erected radially outward in an arch shape. One knob and a second knob that stands radially outward at the other end and passes through the arch portion of the first knob to oppose the first knob, and are provided on both knobs. A hose clamp having locking means for holding the clamp body in a diameter-expanded state by locking the locking body to each other, wherein the locking means comprises:
It is possible to hold the expanded diameter state by locking the two knobs in an offset state that is offset from a neutral state where the two knobs face each other in a direction orthogonal to the circumferential direction of the clamp body. It is a thing.

【０００７】請求項２の発明は、板ばね材を円環状に回
曲してなるクランプ本体と、このクランプ本体の一端側
で径方向外方にアーチ状に起立した第１摘み片と、他端
側で径方向外方に起立し前記第１摘み片のアーチ部分を
通過して前記第１摘み片と対向する第２摘み片と、前記
両摘み片に設けられ相互に係止し合うことで前記クラン
プ本体を拡径状態に保持する係止手段とを備えたホース
クランプであって、前記両摘み片のいずれか一方には傾
斜面を有する誘導部が設けられ、前記両摘み片を前記ク
ランプ本体の周方向に沿って接近させる方向に摘み操作
したときに、前記傾斜面が他方の摘み片側に摺接するこ
とで、前記係止手段の係止が解除される方向へ前記両摘
み片を相対的に変位可能としていることを特徴とするも
のである。According to a second aspect of the present invention, a clamp body is formed by bending a leaf spring material into an annular shape, a first knob that is erected radially outward on one end side of the clamp body, and the like. A second knob that stands radially outward on the end side, passes through the arch portion of the first knob, and opposes the first knob; and a second knob provided on the both knobs and locked to each other. And a locking means for holding the clamp body in a diameter-expanded state, wherein a guide portion having an inclined surface is provided on one of the two knobs, and the two knobs are When the picking operation is performed in the direction of approaching along the circumferential direction of the clamp body, the slanted surface is brought into sliding contact with the side of the other picking piece, so that the both gripping pieces are released in the direction in which the locking of the locking means is released. It is characterized in that it is relatively displaceable.

【０００８】また、請求項３の発明では、請求項１記載
のものにおいて、前記係止手段が、前記両摘み片が正対
する中立状態から前記両摘み片をクランプ本体の径方向
外方へオフセットさせた状態で係止して前記拡径状態を
保持可能としているものにおいて、前記係止手段は、前
記第２摘み片において径方向外方へ突出して設けられた
係止部と、前記第１摘み片のアーチ部分に設けられ前記
係止部と係止可能な受け部とからなり、かつ前記係止部
は拡径状態では前記受け部に係止し両摘み片を摘んで縮
径状態へ移行させるときは、前記第２摘み片が前記第１
摘み片に対して径方向内向きに相対的に変位することに
伴って前記第１摘み片のアーチ部分をくぐり抜けて通過
可能となっており、しかも前記係止部の上面には案内面
が形成されて前記第１摘み片のアーチ部分をくぐり抜け
る際に前記案内面が前記アーチ部分の内縁部と摺接する
ことで、前記第２摘み片を前記第１摘み片に対して相対
的に径方向内向きに変位させて前記くぐり抜け動作を案
内可能としていることを特徴とするものである。According to a third aspect of the invention, in the first aspect of the invention, the locking means offsets the two gripping pieces radially outward of the clamp body from a neutral state in which the two gripping pieces face each other. In a state in which the expanded diameter state can be maintained by locking in the locked state, the locking means includes a locking portion provided in the second knob piece so as to project radially outward, and the first locking piece. In the arched portion of the knob, it comprises a receiving portion that can be locked with the locking portion, and the locking portion is locked to the receiving portion when the diameter is expanded, and both knobs are pinched to a reduced diameter state. When transferring, the second tab is the first
It is possible to pass through the arch portion of the first knob by passing relative to the knob inward in the radial direction, and a guide surface is formed on the upper surface of the locking portion. The guide surface is brought into sliding contact with the inner edge portion of the arch portion when passing through the arch portion of the first knob, so that the second knob is relatively radially inward with respect to the first knob. It is characterized in that it can be guided in the slip-through movement by displacing it in the direction.

【０００９】さらに請求項４の発明は、請求項１又は２
記載のものにおいて、前記係止手段が、前記中立状態か
ら前記両摘み片をクランプ本体の軸方向へオフセットさ
せた状態で係止して前記拡径状態を保持可能としている
ものにおいて、前記係止手段は、前記第２摘み片におい
て径方向外方へ突出して設けられた係止部と、前記第１
摘み片のアーチ部分に設けられ前記係止部と係止可能な
受け部とからなり、且つ前記係止部は拡径状態では前記
受け部に係止し、前記両摘み片を摘んで縮径状態へ移行
させるときには、前記第２摘み片が前記第１摘み片に対
して軸方向へ相対的に変位することに伴って前記受け部
の側方に隣接した位置に配された通過凹部へ移動してこ
こを通過可能となっており、しかも前記係止部には前記
通過凹部側へ屈曲した案内面が形成され、前記係止爪が
前記通過凹部を通過する際には前記案内面が前記通過凹
部の内縁と摺接することで、前記第２摘み片を前記第１
摘み片に対して前記クランプ本体の軸方向へ相対的に変
位させて前記通過動作を案内可能としていることを特徴
とするものである。Further, the invention of claim 4 is the invention of claim 1 or 2.
The locking means described in the above, wherein the locking means is capable of holding the expanded state by locking both of the knob pieces in the axial direction of the clamp body from the neutral state. The means includes a locking portion provided to project outward in the radial direction in the second knob, and the first portion.
The knob is provided on the arch portion of the knob and includes a receiving portion that can be locked with the locking portion, and the locking portion is locked to the receiving portion in a diameter expanded state, and both the knobs are pinched to reduce the diameter. At the time of shifting to the state, the second knob moves to the passage concave portion arranged at a position adjacent to the side of the receiving portion as the second knob relatively moves in the axial direction with respect to the first knob. Further, the engaging portion is formed with a guide surface bent toward the passage concave portion, and the guide surface is formed when the engaging pawl passes through the passage concave portion. The second knob piece is slidably contacted with the inner edge of the passage recess, so that
It is characterized in that the passage operation can be guided by relatively displacing the clamp body in the axial direction with respect to the knob.

【００１０】請求項５の発明は、請求項２記載のものに
おいて、前記受け部あるいは前記係止部が、前記誘導部
を兼用して形成されていることを特徴とするものであ
る。According to a fifth aspect of the present invention, in the second aspect, the receiving portion or the locking portion is formed also as the guiding portion.

【００１１】また請求項６の発明は、請求項５記載のも
のにおいて、前記係止手段は、前記係止部あるいは前記
受け部が、これらが設けられている側の摘み片と対向す
る側の摘み片に向けて突出するとともに、この係止手段
は前記両摘み片が正対する中立状態にあるときに相互に
引っ掛かり合うことで前記拡径状態を保持可能となって
おり、前記係止部は、前記両摘み片に対する前記クラン
プ本体の周方向に沿った摘み操作を行って前記傾斜面に
より前記両摘み片同士が正対する中立状態から前記クラ
ンプ本体を軸方向へずれたオフセット位置へ誘導された
ときに前記傾斜面を乗り越えて前記受け部との係止が解
離されるようになっているとともに、その後このオフセ
ット位置への移動に伴って蓄勢された弾性反力により、
前記受け部の裏側に回り込みつつ前記中立状態へ向けて
復帰するようになっており、かつ、前記係止部の上面に
は逃がし面が形成されて、前記クランプ本体が縮径状態
へ移行するときには前記受け部と摺接して両摘み片を径
方向へ相対的に変位させることで、前記係止部が前記受
け部の下側へ相対的に潜り込む動作を案内し、その後に
弾性復帰させつつ前記クランプ本体を縮径状態へ移行可
能とする構成であることを特徴とするものである。According to a sixth aspect of the present invention, in the fifth aspect, the locking means has a structure in which the locking portion or the receiving portion is provided on the side facing the knob on the side where the locking portion or the receiving portion is provided. While protruding toward the knob, the locking means can hold the expanded state by catching each other when the knobs are in a neutral state where they face each other. , A gripping operation is performed on the two gripping pieces along the circumferential direction of the clamp body, and the clamp body is guided to an offset position axially displaced from the neutral state where the two gripping pieces face each other by the inclined surface. At the same time, the engagement with the receiving portion is disengaged by overcoming the inclined surface, and thereafter, due to the elastic reaction force accumulated with the movement to the offset position,
When returning to the neutral state while wrapping around on the back side of the receiving portion, and a relief surface is formed on the upper surface of the locking portion, when the clamp body shifts to a reduced diameter state. By slidingly contacting the receiving portion and relatively displacing the two gripping pieces in the radial direction, the engaging portion guides the relative diving operation to the lower side of the receiving portion, and then elastically returns while the elastic member is returned. The present invention is characterized in that the clamp body can be moved to a reduced diameter state.

【００１２】[0012]

【発明の作用及び効果】請求項１の発明では、ホースク
ランプは係止手段が係止し合うことで拡径状態に保持さ
れている。この拡径状態から縮径させる場合には、まず
両摘み片を周方向に沿って相互に近接させる方向へ摘み
操作を行う。すると、両摘み片はホースクランプの縮径
状態への戻り方向とは反対方向へ変位するため、各々に
設けられた係止手段は離間して係止状態が一旦解除され
る。この拡径状態では、両摘み片が予め周方向と直交す
る方向へずれたオフセット状態となっていることから、
係止手段の係止解除後に両摘み片に対する摘み操作が緩
められるとクランプ本体の両摘み片は自らの弾性復元力
によってオフセット状態を解除する方向へ復帰変形す
る。係止手段もこの間に係止し合う位置から位置ずれし
ているため、係止手段が再度係止することなく、そのま
まホースクランプは縮径状態へ至りホース等を緊締可能
となる。According to the invention of claim 1, the hose clamp is held in the expanded diameter state by the engagement of the engagement means. When reducing the diameter from the expanded state, first, the picking operation is performed in a direction in which the two gripping pieces come close to each other along the circumferential direction. Then, since both knobs are displaced in the direction opposite to the return direction of the hose clamp to the reduced diameter state, the locking means provided on each of them is separated and the locked state is temporarily released. In this expanded state, since both knob pieces are in an offset state that is displaced in the direction orthogonal to the circumferential direction in advance,
When the gripping operation on both the tabs is loosened after the locking means is unlocked, the tabs on the clamp body are restored and deformed in the direction of releasing the offset state by their elastic restoring force. Since the locking means is also displaced from the position where they are locked during this time, the hose clamp can reach the reduced diameter state and tighten the hose or the like without the locking means being locked again.

【００１３】このように、請求項１の発明によれば、拡
径状態では両摘み片はすでにずれた状態であるため、両
摘み片を周方向へ摘み、係止手段の係止を一旦解除する
だけで、後はばね力により周方向と直交する方向へのず
れが自然に戻され、ホースクランプの拡径状態から縮径
状態への変形操作を容易に行うことができる。As described above, according to the first aspect of the invention, since the two gripping pieces are already displaced in the expanded state, the gripping pieces are gripped in the circumferential direction and the locking of the locking means is temporarily released. Only by doing so, the displacement in the direction orthogonal to the circumferential direction is naturally returned by the spring force, and the deforming operation of the hose clamp from the expanded state to the contracted state can be easily performed.

【００１４】請求項２の発明では、拡径状態に保持され
ているホースクランプを縮径状態へと移行させるには、
まず両摘み片を周方向に沿って接近させる方向に摘む。
すると、誘導部の傾斜面が他方の摘み片側に摺接するこ
とで、ホースクランプを拡径状態に保持している係止手
段の係止を解除する方向へ、両摘み片を相対的に変位さ
せることができる。したがって、誘導部でもって係止解
除方向へ両摘み片を強制的に誘導することができるた
め、確実に係止を解除可能となる。According to the second aspect of the invention, in order to shift the hose clamp held in the expanded diameter state to the reduced diameter state,
First, both picking pieces are picked in a direction in which they approach each other along the circumferential direction.
Then, the slanted surface of the guide portion slides in contact with the side of the other knob to relatively displace both the knobs in the direction in which the locking means holding the hose clamp in the expanded state is unlocked. be able to. Therefore, the guide portions can forcibly guide the two gripping pieces in the unlocking direction, so that the locking can be reliably released.

【００１５】請求項３の発明において、ホースクランプ
は、係止部と受け部とが係止することにより拡径状態に
保持されている。この拡径状態から縮径状態へと移行さ
せる場合には、両摘み片を摘んで周方向に沿って接近さ
せると、係止部と受け部とが周方向に互いに離れる方向
に移動するため、係止が一旦解除される。これと共に、
拡径状態では、両摘み片は径方向にオフセットされた状
態であるため、クランプ本体の弾性復元力によりオフセ
ット状態を解除する方向へ両摘み片が相対的に変位す
る。即ち、第２摘み片が第１摘み片に対して径方向内向
きに相対的に変位する。そして、係止部が第１摘み片の
アーチ部分をくぐり抜けてこれを通過して、ホースクラ
ンプは縮径状態へと至る。この係止部がアーチ部分を通
過する際には、案内面がアーチ部分の内縁部と摺接可能
としたため、係止部がアーチ部分を通過するときの引っ
掛かりを解除できる。In the third aspect of the invention, the hose clamp is held in the expanded diameter state by the engagement of the engagement portion and the receiving portion. When shifting from the expanded diameter state to the reduced diameter state, when both gripping pieces are gripped and brought close to each other in the circumferential direction, the locking portion and the receiving portion move in the direction away from each other in the circumferential direction, The lock is released once. With this,
In the expanded state, since both knobs are offset in the radial direction, both knobs are relatively displaced in the direction of releasing the offset state due to the elastic restoring force of the clamp body. That is, the second knob is displaced inward in the radial direction relative to the first knob. Then, the locking portion passes through the arch portion of the first knob and passes through it, and the hose clamp reaches a reduced diameter state. When the locking portion passes through the arch portion, the guide surface can be slidably contacted with the inner edge portion of the arch portion, so that the catch when the locking portion passes through the arch portion can be released.

【００１６】つまり、拡径状態の係止を解除する際にお
いて、両摘み片に対する摘み操作が不足していると、係
止部がアーチ部分の内縁部の下方にまで完全に到達して
いない状態となりうる。しかし、この状態で両摘み片を
摘む力を解放しても、係止部の案内面がアーチ部分の内
縁部と摺接することで、第２摘み片を第１摘み片に対し
て径方向内向きに相対的に変位させることができるた
め、係止部はアーチ部分に引っ掛かり合うことなく円滑
に通過することができる。That is, when the locking operation in the expanded state is released and the gripping operation on both the gripping pieces is insufficient, the locking part does not completely reach below the inner edge of the arch portion. Can be. However, even if the force for pinching both the knobs is released in this state, the guide surface of the locking portion makes sliding contact with the inner edge of the arch portion, so that the second knob is radially inward with respect to the first knob. Since it can be relatively displaced in the direction, the locking portion can smoothly pass without catching on the arch portion.

【００１７】請求項４の発明によれば、拡径状態から縮
径状態へと移行させる場合には、両摘み片を摘んで周方
向に沿って接近させると、係止部と受け部とが周方向に
互いに離れるため、係止が一旦解除される。そして拡径
状態では、両摘み片は軸方向へオフセットされているた
め、上記の係止解除と共にクランプ本体の弾性復元力に
よりオフセット状態を解除する方向へ両摘み片が相対的
に変位する。すると、係止部は受け部の側方にある通過
凹部へと移動するため、以後は両摘み片を解放してやれ
ば、係止部は通過凹部を通過してホースクリップ全体は
縮径状態へと至る。According to the fourth aspect of the present invention, in the case of shifting from the expanded diameter state to the reduced diameter state, when the two gripping pieces are gripped and brought close to each other in the circumferential direction, the locking portion and the receiving portion are separated from each other. Since they are separated from each other in the circumferential direction, the locking is temporarily released. In the expanded diameter state, since both knobs are offset in the axial direction, both knobs are relatively displaced in the direction of releasing the offset state by the elastic restoring force of the clamp body when the locking is released. Then, the locking part moves to the passage recess on the side of the receiving part, so if both grips are released thereafter, the locking part will pass through the passage recess and the entire hose clip will be in a reduced diameter state. Reach

【００１８】係止部が通過凹部へ至る際に、両摘み操作
が不十分であると、係止部が通過凹部に完全に適合する
位置にまで到達していないことがありうる。しかし、そ
の場合にも、係止部の案内面が通過凹部の内縁と摺接す
ることで、第２摘み片を第１摘み片に対して軸方向へ相
対的に変位させ、係止部を通過凹部を通過可能な位置に
導く。したがって、係止部は通過凹部へ引っかかること
なくスムーズにここを通過可能となる。If the two gripping operations are insufficient when the locking portion reaches the passage recess, the locking portion may not reach a position that completely fits the passage recess. However, even in that case, the guide surface of the locking portion slides in contact with the inner edge of the passage recess to displace the second knob in the axial direction relative to the first knob and pass through the locking portion. Guide it to a position where it can pass through the recess. Therefore, the locking portion can smoothly pass therethrough without being caught in the passage recess.

【００１９】請求項５の発明によれば、受け部あるいは
係止部が誘導部を兼ねる構成であるため、ホースクリッ
プ全体の構成を簡素化することができる。According to the fifth aspect of the present invention, since the receiving portion or the locking portion also serves as the guiding portion, the overall structure of the hose clip can be simplified.

【００２０】請求項６の発明によれば、係止手段は両摘
み片が正対し合う中立状態で係止している。この状態で
両摘み片を周方向に沿って摘むと、傾斜面が係止部と摺
接する。この過程で、係止部は傾斜面を通過すると、そ
の後はクランプ本体の弾性反力にて受け部の裏側に回り
込み、中立状態へと復帰する。このときには、係止手段
の係止状態は解除されているものの、クランプ本体は未
だ拡径状態にあるため、以後はクランプ本体の弾性反力
によって両摘み片は縮径状態へ向けて離間する。このと
き、逃がし面と受け部とが摺接し係止部を受け部の下側
へ円滑に潜り込ませる。かくして、円滑に縮径状態への
移行が可能となる。According to the sixth aspect of the invention, the locking means is locked in a neutral state in which the two gripping pieces face each other. When both grips are gripped in the circumferential direction in this state, the inclined surface comes into sliding contact with the locking portion. In this process, when the locking portion passes through the inclined surface, it then wraps around the back side of the receiving portion by the elastic reaction force of the clamp body and returns to the neutral state. At this time, although the locking state of the locking means is released, since the clamp body is still in the expanded state, the elastic reaction force of the clamp body causes the two gripping pieces to separate from each other toward the reduced diameter state. At this time, the relief surface and the receiving portion are brought into sliding contact with each other so that the locking portion smoothly slips under the receiving portion. Thus, the transition to the reduced diameter state can be smoothly performed.

【００２１】[0021]

【発明の実施の形態】以下、本発明の実施形態を添付図
面に基づいて説明する。＜第１実施形態＞本発明の第１実施形態を図１ないし図
４によって説明する。これらの図に示すホースクランプ
１０は帯状の板ばね材を円環状に回曲して形成され、ク
ランプ本体１０Ａの周面には三角窓１１が２ヶ所開口し
て図示しないホースの全周に均一な締付力を作用できる
ようになっている。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings. <First Embodiment> A first embodiment of the present invention will be described with reference to FIGS. The hose clamp 10 shown in these figures is formed by bending a strip-shaped leaf spring material in an annular shape, and two triangular windows 11 are opened on the peripheral surface of the clamp body 10A so as to be uniform over the entire circumference of the hose (not shown). It is possible to apply various tightening forces.

【００２２】ホースクランプ１０の一端側には所定の長
さ範囲に渡り溝部１２が貫通形成されており、またこの
側の端部は溝部１２の一部分を含めて径方向へ起立し、
アーチ状に形成された第１摘み片１３となっている。さ
らに第１摘み片１３の先端部分は図２ないし図４に示す
左側へ周面に沿って屈曲した操作部１４となっている。
この操作部１４は後述する係止爪１８の形成位置よりも
周方向に長く設けられている。また操作部１４の幅方向
における一方寄りには係止孔１５（受け部）が開口して
いる。On one end side of the hose clamp 10, a groove portion 12 is formed so as to extend over a predetermined length range, and the end portion on this side, including a part of the groove portion 12, stands upright in the radial direction,
It is the first knob 13 formed in an arch shape. Further, the tip end portion of the first knob 13 is an operation portion 14 which is bent to the left side along the peripheral surface shown in FIGS. 2 to 4.
The operation portion 14 is provided longer in the circumferential direction than the formation position of the locking claw 18 described later. Further, a locking hole 15 (receiving portion) is opened at one side of the operation portion 14 in the width direction.

【００２３】ホースクランプ１０の他端側は先細りの幅
挟部１６が形成され、溝部１２内をくぐり抜けて溝部１
２の両側縁との間に所定の隙間を保有しつつこの両側縁
とほぼ同一周面を形成するように入り込んでいる。幅挟
部１６の先端部分は第２摘み片１７となっており、径方
向外方へ起立し、かつその先端は図２ないし図４におけ
る右側へ周面に沿って屈曲している。On the other end side of the hose clamp 10, a tapered width sandwiching portion 16 is formed, which passes through the inside of the groove portion 12 and passes through the groove portion 1.
While holding a predetermined gap between the two side edges, they are formed so as to form substantially the same peripheral surface as the both side edges. The tip end portion of the width sandwiching portion 16 is a second knob 17, which stands up radially outward, and its tip is bent to the right side in FIGS. 2 to 4 along the circumferential surface.

【００２４】第２摘み片１７の根元付近には前記係止孔
１５と係止可能な係止爪１８（係止部）が係止孔１５と
周方向において同軸上に設けられている。係止爪１８は
幅挟部１６の一方側の幅方向端縁から径方向外方へほぼ
直角に屈曲して形成されている。上端部には引っ掛かり
部１９が設けられ第２摘み片１７と対向する側へ突出し
て形成され、係止孔１５と係止しホースクランプ１０全
体を拡径状態に保持できるようになっている。係止孔１
５と係止爪１８とは、両摘み片１３，１７が中立状態に
あるときには径方向にずれて位置している。そのため拡
径状態では、両摘み片１３，１７を径方向にずらすこと
により係止爪１８と係止孔１５とが係止可能となり、両
摘み片１３，１７は径方向にずれた状態（以下、この状
態をオフセットされた状態とする）のままで保持されて
いる。A locking claw 18 (locking portion) capable of locking the locking hole 15 is provided in the vicinity of the base of the second knob 17 coaxially with the locking hole 15 in the circumferential direction. The locking claw 18 is formed by bending a widthwise end edge on one side of the width sandwiching portion 16 radially outwardly at a substantially right angle. A hooking portion 19 is provided on the upper end portion and is formed so as to project toward the side facing the second knob piece 17, and is engaged with the engaging hole 15 so that the hose clamp 10 as a whole can be held in an expanded state. Locking hole 1
5 and the locking claw 18 are displaced from each other in the radial direction when the knobs 13 and 17 are in the neutral state. Therefore, in the expanded state, the locking claws 18 and the locking holes 15 can be locked by shifting both the gripping pieces 13 and 17 in the radial direction, and the two gripping pieces 13 and 17 are displaced in the radial direction (hereinafter , This state is regarded as an offset state).

【００２５】前記した係止爪１８の背側の端面は上端部
から付け根にかけて下り勾配の斜面となった案内面２０
が形成されている。この案内面２０はホースクランプ１
０を拡径状態から縮径状態へと変形させる際に操作部１
４の下縁に案内面２０を摺接させることで両摘み片１
３，１７の縮径方向への変形を行いやすくさせる役目を
果たしている。さらに、この案内面２０は、前記した両
摘み片１３，１７のオフセット解除動作時において、操
作部１４の下縁と摺接することで、このオフセット解除
動作の補助が可能となっている。つまり、両摘み片１
３，１７を摘み操作する際に若干の摘み不足があって、
係止爪１８の先端が操作部１４の下縁に完全に到達して
いない場合においても、案内面２０が操作部１４の下縁
と摺接することで、係止爪１８を確実に操作部１４の下
方を通過させることができる。The dorsal end surface of the locking claw 18 described above is a guide surface 20 which is a downward slope from the upper end to the root.
Are formed. This guide surface 20 is a hose clamp 1
When deforming 0 from the expanded state to the reduced state, the operation unit 1
The guide surface 20 is slidably contacted with the lower edge of the both grips 1
It plays the role of facilitating the deformation of 3, 17 in the diameter reducing direction. Further, the guide surface 20 is capable of assisting the offset releasing operation by slidingly contacting the lower edge of the operating portion 14 during the offset releasing operation of the both knob pieces 13 and 17. In other words, both picks 1
There was a slight shortage when picking 3, 17
Even when the tip of the locking claw 18 does not completely reach the lower edge of the operating portion 14, the guide surface 20 is in sliding contact with the lower edge of the operating portion 14 so that the locking claw 18 can be reliably moved. Can be passed under.

【００２６】次に上記した第１実施形態における作用効
果を説明する。本発明のホースクランプ１０は、図２に
示す拡径状態で作業現場に搬入される。この拡径状態
は、両摘み片１３，１７が径方向へオフセットされた状
態で係止爪１８の引っ掛かり部１９と係止孔１５とが係
止した状態となっている。このように拡径したホースク
ランプ１０を緊締すべきホース等に嵌めておき相手側の
接続パイプ等にホースを差込み、ホースクランプ１０を
所定の位置へずらしてから拡径状態を解除する。Next, the function and effect of the above-described first embodiment will be described. The hose clamp 10 of the present invention is carried into the work site in the expanded state shown in FIG. In this expanded diameter state, the hooking portion 19 of the locking claw 18 and the locking hole 15 are locked while the two gripping pieces 13 and 17 are offset in the radial direction. The hose clamp 10 thus expanded in diameter is fitted to a hose or the like to be tightened, the hose is inserted into a mating connection pipe or the like, the hose clamp 10 is displaced to a predetermined position, and then the expanded diameter state is released.

【００２７】拡径状態を解除するには第１摘み片１３の
操作部１４と第２摘み片１７の先端面に工具Ｔを当接さ
せ力を加えて摘むと、両摘み片１３，１７が周方向に沿
って近接するため係止爪１８の引っ掛かり部１９が係止
孔１５の孔縁から離れ係止が一旦外れる。この時、操作
部１４は係止爪１８の設けられた位置よりも周方向に長
く形成されているため、誤って係止爪１８を工具Ｔで挟
んでしまうことが防がれる。そして、上記したように拡
径状態ではすでに両摘み片１３，１７が径方向へオフセ
ットされた状態であるため、ホースクランプ１０自らの
弾性力により両摘み片１３，１７の径方向における位置
が揃う自由状態へと戻る力が働く。そこで工具Ｔに加え
ていた力を徐々に緩めていけば第１摘み片１３が径方向
外方へ上がると共に第２摘み片１７が径方向内方へ下が
り、係止爪１８が操作部１４下方をくぐり抜けることが
可能となる（図３参照）。そこで、係止爪１８が操作部
１４の下縁を摺動するのに伴い両摘み片１３，１７はそ
れぞれ縮径方向へと急速に変形し、図４に示す縮径状態
に至るとホースが緊締される。この時、係止爪１８には
案内面２０が設けられているため、この案内面２０によ
り係止爪１８が操作部１４の下縁を摺動して縮径状態へ
の変形が案内され、縮径変形動作がスムーズに行われる
ようになっている。To release the expanded state, the tool T is brought into contact with the tip end surfaces of the operating portion 14 of the first knob 13 and the second knob 17 to apply force, and the knobs 13 and 17 are separated. Since they are close to each other in the circumferential direction, the catching portion 19 of the locking claw 18 is separated from the hole edge of the locking hole 15 and the locking is temporarily released. At this time, since the operating portion 14 is formed longer in the circumferential direction than the position where the locking claw 18 is provided, it is possible to prevent the locking claw 18 from being accidentally pinched by the tool T. Further, as described above, since the two gripping pieces 13 and 17 are already offset in the radial direction in the expanded state, the positions of the gripping pieces 13 and 17 in the radial direction are aligned by the elastic force of the hose clamp 10 itself. The power to return to the free state works. Therefore, if the force applied to the tool T is gradually relaxed, the first knob 13 rises radially outward, the second knob 17 descends radially inward, and the locking claw 18 lowers the operating portion 14. It is possible to pass through (see Fig. 3). Therefore, as the locking claw 18 slides on the lower edge of the operating portion 14, both the knob pieces 13 and 17 are rapidly deformed in the diameter reducing direction, and when the diameter reducing state shown in FIG. Tightened. At this time, since the guide surface 20 is provided on the locking claw 18, the locking surface 18 slides on the lower edge of the operating portion 14 by the guide surface 20 to guide the deformation to the reduced diameter state. The diameter reducing deformation operation is performed smoothly.

【００２８】このように拡径状態では、両摘み片１３，
１７はすでに径方向へ相対的にオフセットされた状態で
係止されているため、周方向への摘み操作を行うだけで
拡径状態から縮径状態への変形が可能となる。したがっ
て、従来のようにオフセット状態を経由させるために無
理な操作を行わなくても容易に変形させることができ
る。また、両摘み片１３，１７の先端部分をそれぞれ周
方向へ屈曲して形成したことにより工具Ｔでこれらを摘
む際に工具Ｔの摘み操作部分の開き角度が大きくなるた
め力を加えやすい。よって拡径状態から縮径状態への変
形操作を容易に行うことができる。In this way, in the expanded state, both the knob pieces 13,
Since 17 is already locked in a state of being relatively offset in the radial direction, it is possible to deform from the expanded diameter state to the reduced diameter state simply by performing a pinching operation in the circumferential direction. Therefore, it is possible to easily deform without performing an unreasonable operation to go through the offset state as in the conventional case. Further, since the tip portions of the two gripping pieces 13 and 17 are formed by being bent in the circumferential direction, the opening angle of the gripping operation portion of the tool T becomes large when gripping them with the tool T, so that a force can be easily applied. Therefore, the deformation operation from the expanded diameter state to the reduced diameter state can be easily performed.

【００２９】また、拡径状態を解除する際に、両摘み片
１３，１７の摘み具合が不足していた場合には、係止爪
１８の先端が操作部１４の下縁まで到達しきっていない
状態となる。しかし、この状態で工具Ｔの摘み力を開放
しても、案内面２０が操作部１４の下縁と摺接してオフ
セット解除の不足分を補うため、係止爪１８は操作部１
４を確実に通過することができる。したがって、係止解
除操作のための両摘み片１３，１７の摘み操作に厳格性
が要求されないため、これらの操作に熟練性が要らな
い。Further, when releasing the expanded state, when the gripping condition of both the gripping pieces 13, 17 is insufficient, the tip of the locking claw 18 does not reach the lower edge of the operating portion 14. It becomes a state. However, even if the pinching force of the tool T is released in this state, the guide surface 20 makes sliding contact with the lower edge of the operating portion 14 to make up for the lack of offset cancellation, so that the locking claw 18 is operated by the operating portion 1.
4 can be reliably passed. Therefore, since strictness is not required for the pinching operation of both the tabs 13 and 17 for the unlocking operation, no skill is required for these operations.

【００３０】＜第２実施形態＞次に、本発明の第２実施
形態を図５ないし図８によって説明する。第１実施形態
との相違点は第１摘み片１３と第２摘み片１７とを係止
解除方向へ相対的に変位させるための補助構造が付加さ
れている点である。以下には第１実施形態と異なる部分
を中心に説明し、重複した構成については同一符合を付
し、これに関する構造、作用及び効果の説明は省略す
る。<Second Embodiment> Next, a second embodiment of the present invention will be described with reference to FIGS. The difference from the first embodiment is that an auxiliary structure for relatively displacing the first knob 13 and the second knob 17 in the unlocking direction is added. The following description will be focused on the parts different from the first embodiment, and the same reference numerals will be given to the overlapping configurations, and the description of the structure, action, and effect related thereto will be omitted.

【００３１】第１摘み片１３の操作部１４の下縁には、
撓み性に乏しい補助片２１（誘導部）が形成されてい
る。この補助片２１は操作部１４の下縁から第２摘み片
１７に向けて延出されている。At the lower edge of the operating portion 14 of the first knob 13,
An auxiliary piece 21 (guide portion) having poor flexibility is formed. The auxiliary piece 21 extends from the lower edge of the operation portion 14 toward the second knob piece 17.

【００３２】よって拡径状態を解除する際には、工具Ｔ
で両摘み片１３，１７を近接する方向へ摘み操作すると
補助片２１の下面が第２摘み片１７の上面に当接し、こ
の摘み操作に伴い補助片２１と第２摘み片１７とが相互
に押し合う。するとこれらが径方向に押し合うことによ
り両摘み片１３，１７が相対的に径方向、即ちオフセッ
ト状態を解除する方向へずれるため、より確実にオフセ
ット状態を解除可能となる。Therefore, when releasing the expanded state, the tool T
When the knobs 13 and 17 are operated to be picked up in the direction of approaching each other, the lower surface of the auxiliary piece 21 comes into contact with the upper surface of the second knob 17, and the auxiliary piece 21 and the second knob 17 are moved to each other with this picking operation. Push each other. Then, when these are pressed in the radial direction, the two gripping pieces 13 and 17 are relatively displaced in the radial direction, that is, the direction in which the offset state is released, so that the offset state can be released more reliably.

【００３３】また、作業者が必要以上に両摘み片１３，
１７を摘む操作をしても補助片２１の先端下面が規制部
２２となり第２摘み片１７の上面に当接するためその摘
み操作が規制される。よって、両摘み片１３，１７が過
度に摘まれることによりホースクランプ１０が弾性限界
を超えて復帰変形できなくなることが防がれると共に作
業者の負担も軽減される。Further, the operator may unnecessarily use both the picking pieces 13,
Even if the operation of picking 17 is performed, the lower surface of the tip of the auxiliary piece 21 serves as the restricting portion 22 and contacts the upper surface of the second picking piece 17, so that the picking operation is restricted. Therefore, it is possible to prevent the hose clamp 10 from exceeding the elastic limit and being unable to return and deform due to excessive pinching of the two gripping pieces 13 and 17, and the burden on the operator is also reduced.

【００３４】＜第３実施形態＞上記した実施形態では、
両摘み片１３，１７を径方向にオフセットさせたまま拡
径状態に保持したが、例えば図９に示す第３実施形態の
ように中立状態では係止爪１８（係止部）と係止孔１５
（受け部）とが軸方向の片側へずれた位置に形成し、拡
径状態で両摘み片１３，１７を軸方向、つまり周方向に
直交する方向にオフセットさせた状態で保持しても良
い。よって上記した実施形態と同様な効果が得られ、重
複した構成については同一符合を付し、これに関する構
造、作用及び効果の説明は省略する。<Third Embodiment> In the above embodiment,
The two gripping pieces 13 and 17 are held in the expanded state while being offset in the radial direction. For example, in the neutral state as in the third embodiment shown in FIG. 9, the locking claw 18 (locking portion) and the locking hole are provided. 15
(Reception part) may be formed at a position displaced to one side in the axial direction, and both gripping pieces 13 and 17 may be held in a state of being expanded in a state of being offset in the axial direction, that is, a direction orthogonal to the circumferential direction. . Therefore, the same effect as that of the above-described embodiment can be obtained, the same reference numerals are given to the overlapping configurations, and the description of the structure, action, and effect related thereto will be omitted.

【００３５】＜第４，第５実施形態＞上記した第２実施
形態では第１摘み片１３側に規制部２２を設けたが、第
２摘み片１７側に設けても良い。即ち図１０に示す第４
実施形態であれば、第２摘み片１７の先端が第１摘み片
１３に向けて直角に屈曲したものであり、図１１に示す
第５実施形態であれば、第２摘み片１７の一方側周縁か
ら径方向外方へ起立形成したものであっても良い。よっ
て上記した第２実施形態と同様な効果が得られ、重複し
た構成については同一符合を付し、これに関する構造、
作用及び効果の説明は省略する。<Fourth and Fifth Embodiments> In the above-described second embodiment, the regulating portion 22 is provided on the first knob 13 side, but it may be provided on the second knob 17 side. That is, the fourth shown in FIG.
In the case of the embodiment, the tip of the second knob 17 is bent at a right angle toward the first knob 13, and in the case of the fifth embodiment shown in FIG. 11, one side of the second knob 17 is used. It may be formed so as to stand radially outward from the peripheral edge. Therefore, the same effects as those of the above-described second embodiment can be obtained, and the same reference numerals are given to the duplicated structures,
The description of the action and effect is omitted.

【００３６】＜第６実施形態＞本発明の第６実施形態を
図１２ないし図１９によって説明する。これらの図に示
すホースクランプ１０は、上記した実施形態と同様に帯
状の板ばね材を円環状に回曲させて形成されている。ク
ランプ本体１０Ａの一端側には、溝部１２が貫通形成さ
れている。また、この一端側は、溝部１２を含むように
径方向外側へ起立して折り曲げられた第１摘み片１３と
なっている。第１摘み片１３の先端部分は操作部１４と
なり、この操作部１４の下端には、通過凹部３１が径方
向外側に凹設され、後述する係止爪３９を通過可能な空
間を形成している。また、通過凹部３１に隣接する位置
で、かつ第１摘み片１３の幅方向中央部分には、係止凹
部３０（受け部）が方形状に凹み形成されている。<Sixth Embodiment> A sixth embodiment of the present invention will be described with reference to FIGS. The hose clamp 10 shown in these figures is formed by bending a strip-shaped leaf spring material into an annular shape as in the above-described embodiment. A groove portion 12 is formed through at one end of the clamp body 10A. In addition, the one end side is a first knob 13 that is erected and bent outward in the radial direction so as to include the groove 12. The distal end portion of the first knob 13 serves as an operating portion 14, and a passage concave portion 31 is provided on the lower end of the operating portion 14 so as to be radially outward and forms a space through which a locking claw 39 described later can pass. There is. Further, a locking recess 30 (reception part) is formed in a rectangular shape at a position adjacent to the passage recess 31 and in the widthwise central portion of the first knob 13.

【００３７】図１２に示すように、クランプ本体１０Ａ
の他端側には、先細りとなった幅狭部１６が設けられて
いる。この幅挟部１６は、上記したようにクランプ本体
１０Ａを円環状に回曲させる際に、溝部１２の両内側縁
との間に所定の隙間を保有しつつ溝部１２をくぐり抜け
る。この幅挟部１６の端部は、第２摘み片１７となって
いる。この第２摘み片１７には、操作部３８と、段差部
３６と、係止爪３９（係止部）とが設けられている。As shown in FIG. 12, the clamp body 10A
On the other end side, a tapered narrow portion 16 is provided. When the clamp main body 10A is bent in an annular shape as described above, the width sandwiching portion 16 passes through the groove portion 12 while holding a predetermined gap between the clamp body 10A and both inner edges of the groove portion 12. The end portion of the width sandwiching portion 16 serves as a second knob piece 17. The second knob piece 17 is provided with an operation portion 38, a step portion 36, and a locking claw 39 (locking portion).

【００３８】まず、係止爪３９は、図１３ないし図１５
に示すように、第２摘み片１７の根元部分の一方側の側
縁から径方向外側へ起立して形成されている。係止爪３
９の先端には、第１摘み片１３の操作部１４と対向する
方向へ突出した引っ掛かり部４２が設けられており、係
止凹部３０に引っ掛かり部４２が引っ掛かることでホー
スクランプ１０を拡径状態に保持することができる。ま
た、ホースクランプ１０が中立状態にあるときには、こ
の係止凹部３０と引っ掛かり部４２との位置関係は、ホ
ースクランプ１０の軸方向に関してずれた関係となって
おり、逆にいえば、係止凹部３０と引っ掛かり部４２と
が係止し合っている拡径状態においては、クランプ本体
１０Ａ全体が軸方向にねじれたオフセット状態となって
いる。なお、前記したように、係止凹部３０は第１摘み
片１３の幅方向中央部付近に設けられているため、拡径
状態では、係止爪３９は第１摘み片１３の略中心軸上付
近に位置している（図１６参照）。First, the locking claw 39 is shown in FIGS.
As shown in, the second knob 17 is formed so as to stand radially outward from a side edge on one side of the root portion of the second knob piece 17. Locking claw 3
A hooking portion 42 protruding in a direction facing the operation portion 14 of the first knob 13 is provided at the tip of the hose 9, and the hooking portion 42 is hooked in the locking recess 30 to expand the hose clamp 10. Can be held at. Further, when the hose clamp 10 is in the neutral state, the positional relationship between the locking recess 30 and the catching portion 42 is shifted with respect to the axial direction of the hose clamp 10, and conversely, the locking recess is formed. In the expanded state in which 30 and the catching portion 42 are engaged with each other, the entire clamp body 10A is in an offset state in which it is twisted in the axial direction. As described above, since the locking recess 30 is provided in the vicinity of the central portion of the first knob 13 in the width direction, the locking claw 39 is substantially on the central axis of the first knob 13 in the expanded state. It is located in the vicinity (see FIG. 16).

【００３９】係止爪３９の背側の端縁は、先端から付け
根にかけて緩やかな下り勾配の被押圧面４０となってい
る。これは、工具Ｔで両摘み片１３，１７を摘む際に、
誤って第１摘み片１３ではなく係止爪３９の背側を摘ん
でしまっても、被押圧面４０に工具Ｔが案内されて第１
摘み片４０を摘むことができるようになっている。さら
に、この被押圧面４０は、ホースクランプ１０が縮径状
態から拡径状態へと変形する過程で、係止爪３９が第１
摘み片１３の下方をくぐり抜ける時に、第１摘み片１３
の下端縁に当たることを配慮したものとなっている。The back edge of the locking claw 39 is a pressed surface 40 having a gentle downward slope from the tip to the base. This is when picking both picking pieces 13, 17 with the tool T,
Even if the back side of the locking claw 39 is accidentally picked up instead of the first knob 13, the tool T is guided by the pressed surface 40 and
The pick piece 40 can be picked. Further, the pressing surface 40 has the locking claw 39 which is the first one when the hose clamp 10 is deformed from the reduced diameter state to the enlarged diameter state.
When passing under the knob 13, the first knob 13
It is designed to hit the bottom edge of the.

【００４０】操作部３８は、第２摘み片１７の先端部分
に設けられ、径方向外側に起立して、第１摘み片１３の
操作部１４と対向する位置関係となっている。操作部３
８と係止爪３９との間には、第１摘み片１３側の周面よ
り一段径方向外側へずれた段差となっている段差部３６
が設けられている。拡径状態では、この段差部３６と操
作部３８は、第１摘み片１３の操作部１４をくぐり抜け
た位置に配されるようになっている。The operating portion 38 is provided at the tip portion of the second knob 17 and stands up radially outward so as to face the operating portion 14 of the first knob 13. Operation part 3
8 and the locking claw 39, which is a stepped portion 36 that is a step shifted radially outward by one step from the peripheral surface on the first knob 13 side.
Is provided. In the expanded state, the step portion 36 and the operating portion 38 are arranged at a position where they pass through the operating portion 14 of the first knob 13.

【００４１】段差部３６の側縁のうち、係止爪３９が形
成されていない側の側縁は、操作部３８に近づくにつれ
て幅が広くなるようなテーパ部３７（誘導部）となって
いる。両摘み片１３、１７を周方向に近接させるように
摘むと、テーパ部３７が第１摘み片１３の内側縁である
摺接部３２と摺接することで、オフセット状態を解除す
る方向へ両摘み片１３、１７を強制的に誘導することが
可能となっている。また、このテーパ部３７の長さは、
係止爪３９が通過凹部３１の一方側の側縁に掛かる位置
から、この通過凹部３１を通過可能な位置まで変位させ
るのに充分な長さに設定してある。Of the side edges of the step portion 36, the side edge on the side where the locking claw 39 is not formed is a taper portion 37 (guide portion) which becomes wider as it approaches the operation portion 38. . When the knobs 13 and 17 are picked so as to be close to each other in the circumferential direction, the taper portion 37 is brought into sliding contact with the sliding contact portion 32 which is the inner edge of the first knob 13, so that both knobs are released in the direction in which the offset state is released. The pieces 13 and 17 can be forcibly guided. The length of the tapered portion 37 is
The length is set to be sufficient for displacing the locking claw 39 from the position where one side edge of the passage recess 31 is hooked to the position where the passage recess 31 can pass.

【００４２】また、係止爪３９の先端は、図１６から図
１８に示すように第２摘み片１７から離れる側へ屈曲し
ており、その内面は案内面４１となっている。案内面４
１は、前記した両摘み片１３，１７のオフセット解除動
作時において、通過凹部３１の一方側の側縁と摺接可能
とすることで、このオフセット解除動作の補助が可能と
なっている。したがって、両摘み片１３，１７を摘み操
作する際に、若干の摘み不足があって、係止爪３９が通
過凹部３１内に完全に到達していない場合においても、
案内面４１が通過凹部３１の一方側の側縁と摺接するた
め、係止爪３９を通過凹部３１を通過させることができ
る。Further, as shown in FIGS. 16 to 18, the tip of the locking claw 39 is bent toward the side away from the second knob 17, and the inner surface thereof is a guide surface 41. Guide surface 4
1 is capable of assisting the offset releasing operation by allowing sliding contact with one side edge of the passage recess 31 during the offset releasing operation of the both knob pieces 13 and 17. Therefore, even when the knobs 13 and 17 are slightly pinched when the pinching operation is performed and the locking claw 39 does not completely reach the passage recess 31,
Since the guide surface 41 is in sliding contact with the one side edge of the passage recess 31, the locking claw 39 can be passed through the passage recess 31.

【００４３】次に、上記した第６実施形態における作用
効果を説明する。このホースクランプ１０は、図１３、
１４における拡径状態に保持した状態で作業現場に搬入
される。拡径状態では、両摘み片１３、１７は軸方向に
オフセットされて、係止爪３９と係止凹部３０とが係止
してオフセット状態に保持された状態となっている。ホ
ースを所定の管に接続する際には、まずこの拡径状態の
ホースクランプ１０をホースの所定の位置まで差し込ん
でから、管にホースを嵌合する。この嵌合部分にホース
クランプ１０を移動してこの拡径状態の解除がなされ
る。Next, the function and effect of the above-described sixth embodiment will be described. This hose clamp 10 is shown in FIG.
14 is carried in to the work site while being held in the expanded diameter state. In the expanded diameter state, the two gripping pieces 13 and 17 are offset in the axial direction so that the locking claw 39 and the locking recess 30 are locked and held in the offset state. When connecting the hose to a predetermined pipe, first, the hose clamp 10 in the expanded state is inserted to a predetermined position of the hose, and then the hose is fitted to the pipe. The hose clamp 10 is moved to this fitting portion to release the expanded diameter state.

【００４４】即ち、拡径状態から縮径状態へと変形させ
る場合には、図１３に示すように、まず両操作部１４、
３８をプライヤーなどの一般工具Ｔで摘んで、両操作部
１４、３８を周方向に沿って近接させる。すると、係止
爪３９の先端が係止凹部３０から抜け出るため、係止状
態が一旦解除される。係止が解除されると、両摘み片１
３、１７は、拡径状態で軸方向にオフセットされた状態
で保持されているため、これ自身が有するばね力によ
り、両摘み片１３、１７は軸方向に揃う位置まで戻ろう
とする。ここで、上述した両摘み片１３、１７の摘み操
作時には、テーパ部３７が摺動部３２に当接し、両操作
部１４、３８の摘み操作に伴って、テーパ部３７と摺動
部３２とが摺動するため、両摘み片１３、１７はオフセ
ット解除方向へ強制的に誘導される（図１７参照）。That is, when deforming from the expanded diameter state to the reduced diameter state, first, as shown in FIG.
By picking 38 with a general tool T such as pliers, both operation parts 14 and 38 are brought close to each other in the circumferential direction. Then, the tip of the locking claw 39 comes out of the locking recess 30, so that the locked state is once released. When the lock is released, both knobs 1
Since 3 and 17 are held in a state of being axially offset in the expanded state, the two gripping pieces 13 and 17 try to return to a position where they are aligned in the axial direction due to the spring force of themselves. Here, at the time of the picking operation of both the knob pieces 13 and 17, the taper portion 37 abuts on the sliding portion 32, and along with the picking operation of the operation portions 14 and 38, the taper portion 37 and the sliding portion 32 are Slides, the two gripping pieces 13 and 17 are forcibly guided in the offset canceling direction (see FIG. 17).

【００４５】そして、係止爪３９の先端が通過凹部３１
まで到達した時点で両摘み片１３、１７に加えていた力
を開放すると、係止爪３９が通過凹部３１の下方を通過
するため、クランプ本体１０Ａが縮径方向へ急速に復帰
して、両摘み片１３、１７が図１９に示す縮径状態に至
ると、ホースが緊締される。Then, the tip of the locking claw 39 has the passage recess 31.
When the force applied to both the gripping pieces 13 and 17 is released at the time of reaching, the locking claw 39 passes below the passage recess 31, so that the clamp body 10A rapidly returns in the diameter reducing direction, When the tabs 13 and 17 reach the reduced diameter state shown in FIG. 19, the hose is tightened.

【００４６】以上のように、この実施形態では次のよう
な作用効果が現れる。仮に係止爪３９にテーパ面３７を
設けず、単にクランプ本体１０Ａの有する弾性復元力で
もってオフセット状態を解除させる構造のものでは、工
具Ｔの摘み状況によってはクランプ本体１０Ａがオフセ
ット状態を解除して中立状態へと復帰する動作を阻害す
る場合もありえる。そのような場合には、工具Ｔの摘み
操作を緩めると、再び係止爪３９が係止凹部３０に嵌り
込んでしまうような係止状態へと復帰してしまう虞があ
る。しかるに、この実施形態では、両摘み片１３，１７
を強制的にオフセット解除方向へ誘導するようにしてい
るため、再び係止状態へ復帰することなく、確実に両摘
み片１３，１７のオフセット状態を解除できる。As described above, in this embodiment, the following operational effects will appear. If the locking claw 39 is not provided with the tapered surface 37 and the offset state is simply released by the elastic restoring force of the clamp body 10A, the clamp body 10A may release the offset state depending on the picking state of the tool T. In some cases, the operation of returning to the neutral state may be hindered. In such a case, if the picking operation of the tool T is loosened, there is a possibility that the locking claw 39 may return to the locked state in which the locking claw 39 is fitted into the locking recess 30 again. However, in this embodiment, both the pick pieces 13, 17 are
Since the lever is forcibly guided in the offset releasing direction, the offset state of both the gripping pieces 13 and 17 can be reliably released without returning to the locked state again.

【００４７】また、拡径状態を解除する際に、両摘み片
１３，１７の摘み不足となっていた場合には、係止爪３
９が通過凹部３１と正対するまでには至らない。しか
し、この状態で工具Ｔの摘み力を開放しても、案内面４
１が通過凹部３１の一方側の側縁と摺接してオフセット
解除の不足分を補うため、係止爪３９は通過凹部３１を
確実に通過することができる（図１７参照）。Further, when releasing the expanded state, when the both gripping pieces 13 and 17 are insufficiently gripped, the locking claw 3
9 does not reach the passage recess 31 directly. However, even if the pinching force of the tool T is released in this state, the guide surface 4
Since the sliding contact of 1 with one side edge of the passage recess 31 compensates for the lack of offset cancellation, the locking claw 39 can reliably pass through the passage recess 31 (see FIG. 17).

【００４８】したがって、係止解除操作のための両摘み
片１３，１７の摘み操作に厳格性が要求されないため、
これらの操作に熟練性が要らない。Therefore, since strictness is not required for the picking operation of both the picking pieces 13 and 17 for the unlocking operation,
No skill is required for these operations.

【００４９】＜第７実施形態＞次に、本発明の第７実施
形態を図２０及び図２１によって説明する。以下には、
第６実施形態と異なる部分を中心に説明し、第６実施形
態と重複した構造については同一符号を付し、これに関
する作用及び効果は省略する。<Seventh Embodiment> Next, a seventh embodiment of the present invention will be described with reference to FIGS. Below,
The description will be centered on the parts different from the sixth embodiment, and the same structures as those in the sixth embodiment will be designated by the same reference numerals and the operations and effects related thereto will be omitted.

【００５０】第１摘み片１３の操作部１４の下端縁に
は、鈎状の係止爪４５（受け部）が設けられている。係
止爪４５は操作部１４との連結部分付近から周方向に沿
って第２摘み片１７側に向けて折り曲げ形成されてい
る。係止爪４５の先端部分は、軸方向の一方側へ向けて
突出している。また、この先端部分の側縁は、テーパ部
４６（誘導部）となっている（図２０参照）。先端部分
の端縁からは、引っ掛かり部４７が周方向へ突出して設
けられている。A hook-shaped locking claw 45 (receiving portion) is provided on the lower end edge of the operating portion 14 of the first knob 13. The locking claw 45 is formed by bending from the vicinity of the connecting portion with the operating portion 14 toward the second knob 17 side along the circumferential direction. The tip portion of the locking claw 45 projects toward one side in the axial direction. Further, the side edge of this tip portion is a taper portion 46 (guide portion) (see FIG. 20). A catch 47 is provided so as to project in the circumferential direction from the edge of the tip portion.

【００５１】幅挟部１６における第２摘み片１７は、幅
挟部１６の端部を径方向外側に略直角に折り曲げて形成
され、第１摘み片１３と対向可能となっている。第２摘
み片１７の根元付近の一方側の側縁からは、係合部４８
（係止部）が径方向外側に略直角に起立して形成されて
いる。係合部４８は鈎状に形成され、その先端は下向き
に屈曲した外れ止め４４が形成されている。この外れ止
め４４は、係止爪４５の引っ掛かり部４７の内側に引っ
掛かることで、両摘み片１３，１７をオフセット状態に
保持している。また、引っ掛かり部４７と外れ止め４４
が引っ掛かっている状態では、係合部４８の起立した面
となっている摺動部４９が、係止爪４５のテーパ部４６
と当接するようになっている。The second gripping piece 17 in the width sandwiching portion 16 is formed by bending the end portion of the width sandwiching portion 16 outward in the radial direction at a substantially right angle, and can face the first gripping piece 13. From the side edge on one side near the base of the second knob 17, the engaging portion 48
The (locking portion) is formed so as to stand on the outer side in the radial direction at a substantially right angle. The engaging portion 48 is formed in a hook shape, and a tip of the engaging portion 48 is formed with a stopper 44 that is bent downward. The disengagement stopper 44 holds both the gripping pieces 13 and 17 in an offset state by being hooked inside the hooking portion 47 of the locking claw 45. In addition, the catch 47 and the stopper 44
In the state in which the engaging portion 48 is hooked, the sliding portion 49, which is the upright surface of the engaging portion 48, becomes the tapered portion 46 of the locking claw 45.
It comes to abut.

【００５２】したがって、この第７実施形態によれば、
図に示す拡径状態から縮径状態へ変形させる際に、両摘
み片１３、１７を摘んで相互に接近させると、外れ止め
４４が引っ掛かり部４７の内側から抜け出ると共に、摺
動部４９とテーパ部４６とが摺接して両摘み片１３，１
７を強制的にオフセット解除方向へ案内する（図２１参
照）。よって、以後は、第６実施形態と同様にしてホー
スクランプ１０が縮径状態へと移行する。Therefore, according to the seventh embodiment,
When the gripping pieces 13 and 17 are grasped and brought close to each other when deformed from the expanded diameter state to the contracted diameter state shown in the figure, the disengagement stopper 44 comes out from the inside of the catch portion 47, and the sliding portion 49 and the taper portion 49 are tapered. Sliding contact with the part 46, both picking pieces 13, 1
7 is forcibly guided in the offset releasing direction (see FIG. 21). Therefore, thereafter, the hose clamp 10 shifts to the reduced diameter state in the same manner as in the sixth embodiment.

【００５３】なお、拡径状態において両摘み片１３、１
７に対する過度摘み操作がなされた場合には、係止爪４
５と第２摘み片１７とが当たり合うことで、それ以上の
摘み操作ができないように規制可能となっている。これ
により、クランプ本体１０Ａが弾性限度を超えて摘まれ
るのを規制でき、クランプ本体１０Ａの真円性が保持さ
れる。なお、クランプ本来１０Ａの弾性限度内であれ
ば、第７実施形態のような係止爪４５としなくても、両
摘み片１３，１７同士を当たり合わせることによる、過
度の摘み規制を行うようにすることもありうる。In the expanded state, both knobs 13, 1
When an excessive picking operation is performed on 7, the locking claw 4
5 and the second picking piece 17 are in contact with each other, it is possible to regulate so that further picking operation cannot be performed. As a result, the clamp body 10A can be restricted from being pinched beyond the elastic limit, and the circularity of the clamp body 10A is maintained. It should be noted that if the clamp is originally within the elastic limit of 10 A, it is possible to perform excessive gripping regulation by bringing both gripping pieces 13 and 17 into contact with each other without using the locking claw 45 as in the seventh embodiment. It is possible to do it.

【００５４】＜第８，第９実施形態＞上記した第７実施
形態では、係合部４８を鈎状に形成したが、違う形状で
あってもよい。<Eighth and Ninth Embodiments> In the seventh embodiment described above, the engaging portion 48 is formed in a hook shape, but may have a different shape.

【００５５】即ち、第８実施形態であれば、図２２に示
すように、第２摘み片１７の一方側の側縁から、略方形
状の２つの突片５０，５１を設け、一方側の突片５０
（係止部）を引っ掛かり部４７と引っ掛かり合わせるこ
とにより両摘み片１３，１７をオフセット状態に保持さ
せ、他方側の突片５１の一側縁をテーパ部４６（誘導
部）と摺動させるようにしてもよい。That is, in the case of the eighth embodiment, as shown in FIG. 22, two substantially rectangular protrusions 50 and 51 are provided from the side edge on one side of the second knob 17, and one side is provided. Protrusion 50
By engaging the (locking part) with the catching part 47, the two gripping pieces 13 and 17 are held in an offset state, and one side edge of the projecting piece 51 on the other side is slid with the taper part 46 (guide part). You may

【００５６】また、第９実施形態では、図２３に示すよ
うに、係合部５２を起立形成ではなく、幅挟部１６の側
方を周方向に切り欠き、自由端側を径方向外側へ向けて
起こすことにより、係止爪４５と係止させるようにして
もよい。Further, in the ninth embodiment, as shown in FIG. 23, the engaging portion 52 is not formed upright, but the side of the width sandwiching portion 16 is notched in the circumferential direction, and the free end side is radially outward. You may make it engage with the locking claw 45 by raising toward.

【００５７】＜第１０実施形態＞本発明の第１０実施形
態を、図２４ないし図２６によって説明する。上記した
第１実施形態から第９実施形態では、いずれもホースク
ランプ１０を拡径状態で軸方向あるいは径方向にオフセ
ットした状態で保持されているものを示したが、以下の
実施形態では、中立状態で拡径状態に保持したものとな
っている。<Tenth Embodiment> A tenth embodiment of the present invention will be described with reference to FIGS. In each of the above-described first to ninth embodiments, the hose clamp 10 is held in the expanded state in the state of being axially or radially offset, but in the following embodiments, it is neutral. In this state, the diameter is kept expanded.

【００５８】ここで示す第１０実施形態は、オフセット
の有無を除き、基本構造は第７実施形態と同様な構造と
なっている。したがって、以下には、第７実施形態と異
なる部分を中心に説明し、第７実施形態と重複した構造
については同一符号を付し、これに関する作用及び効果
は省略する。The tenth embodiment shown here has the same basic structure as the seventh embodiment except for the presence or absence of an offset. Therefore, the following description will be focused on the parts different from the seventh embodiment, and the same reference numerals will be given to the structures overlapping with the seventh embodiment, and the operations and effects related thereto will be omitted.

【００５９】図２４に示す拡径状態では、両摘み片１
３、１７は軸方向にずれていない中立状態で係止爪５３
（受け部）と係合部４８（係止部）により保持されてい
る。拡径状態に保持するためには、両摘み片１３、１７
を一旦軸方向へオフセットさせてから係止爪５３と係合
部４８とを係止させるようになっている。In the expanded state shown in FIG. 24, both knob pieces 1
3, 17 are the locking claws 53 in a neutral state where they are not displaced in the axial direction.
It is held by the (receiving portion) and the engaging portion 48 (locking portion). In order to keep the expanded state, both knobs 13, 17
Is temporarily offset in the axial direction, and then the locking claw 53 and the engaging portion 48 are locked.

【００６０】この拡径状態から縮径状態へと変形させる
には、両摘み片１３、１７を摘み、力を加えて両摘み片
１３、１７を周方向に沿って近接させると、係止爪５３
と係合部４８との係止が解除されると共に、テーパ部５
４（誘導部）と摺動部４９とが摺動しあって両摘み片１
３、１７が軸方向へ相互に離れる方向へ徐々にオフセッ
トされる（図２５参照）。そのまま摘み操作を続け、テ
ーパ部５４の先端に係合部４８が到達すると、オフセッ
ト方向への誘導手段がなくなるため、係止爪５３が係合
部４８を乗り越えると、両摘み片１３、１７の弾性復元
力により係合部４８が係止爪５３の裏側に廻り込んで、
係合部４８の背面が係止爪５３の内面に当接する（図２
６参照）。すると、係合部４８の背面は、所定の勾配を
持った逃がし面４８Ａとなっているため、クランプ本体
１０Ａの弾性復元力により、係止爪５３が逃がし面４８
Ａに案内されながら、相対的に係合部４８が係止爪５３
の下に潜り込んで通過すると、両摘み片１３，１７の径
方向への変位が戻り、クランプ本体１０Ａが縮径状態へ
と移行する。In order to deform the expanded state from the expanded state, the two gripping pieces 13 and 17 are gripped, and a force is applied to bring the two gripping pieces 13 and 17 close to each other in the circumferential direction. 53
The engagement between the engagement portion 48 and the engagement portion 48 is released, and the taper portion 5
4 (guide part) and sliding part 49 slide against each other
3, 17 are gradually offset in a direction away from each other in the axial direction (see FIG. 25). When the engaging portion 48 reaches the tip of the taper portion 54 and the engaging portion 48 reaches the tip of the taper portion 54, the guiding means in the offset direction is lost. The elastic restoring force causes the engaging portion 48 to wrap around to the back side of the locking claw 53,
The back surface of the engaging portion 48 contacts the inner surface of the locking claw 53 (see FIG. 2).
6). Then, since the back surface of the engaging portion 48 is a relief surface 48A having a predetermined gradient, the locking claw 53 is released by the elastic restoring force of the clamp body 10A.
While being guided by A, the engaging portion 48 is relatively engaged with the locking claw 53.
When it sneaks under and passes, the radial displacement of both the gripping pieces 13 and 17 returns, and the clamp body 10A shifts to a reduced diameter state.

【００６１】したがって、拡径状態の係止解除操作は周
方向に両摘み片１３，１７を摘み操作するだけであるた
め、操作が容易に行える。加えて、この第１０実施形態
では、拡径状態では、クランプ本体１０Ａはオフセット
状態ではなく中立状態で保持されているため、オフセッ
トに伴うクランプ本体１０Ａの弾性反力が作用していな
いため、クランプ本体１０Ａの形状保持に有効である。Therefore, since the unlocking operation in the expanded state is performed only by pinching both the tabs 13 and 17 in the circumferential direction, the operation can be easily performed. In addition, in the tenth embodiment, in the expanded state, the clamp body 10A is held in the neutral state, not in the offset state. Therefore, the elastic reaction force of the clamp body 10A associated with the offset does not act, and thus the clamp body 10A is not clamped. This is effective for maintaining the shape of the main body 10A.

【００６２】＜第１１実施形態＞上記した第１０実施形
態では、係止爪５３を第１摘み片１３に設け、係合部４
８を第２摘み片１７に設けたが、図２７に示すように、
逆配列、つまり係止爪５３Ａを第２摘み片１７に設け、
係合部４８Ｂを第１摘み片１３に設けてもよい。したが
って、第１０実施形態と同様にホースクランプ１０を拡
径状態から縮径状態への変形を可能とし、これと同様の
効果が得られる。<Eleventh Embodiment> In the tenth embodiment described above, the engaging claw 53 is provided on the first knob 13, and the engaging portion 4 is provided.
8 is provided on the second knob 17, but as shown in FIG.
The reverse arrangement, that is, the locking claw 53A is provided on the second knob 17,
The engaging portion 48B may be provided on the first knob 13. Therefore, similarly to the tenth embodiment, the hose clamp 10 can be deformed from the expanded diameter state to the reduced diameter state, and the same effect can be obtained.

【００６３】＜第１２実施形態＞上記した第１０実施形
態では、係合部４８を鈎状に形成したが、図２８に示す
ように、第２摘み片１７の一方側の側縁から方形状の係
合部５５（係止部）を径方向に起立して形成して係止爪
５３（受け部）と係止可能とし、摺動部５６を係合部５
５から第２摘み片１７の先端側へ所定間隔ずらした位置
に周方向への切り起こしによって形成し、テーパ部５４
（誘導部）と摺接可能としても良い。係合部５５が係止
爪５３と引っ掛かり合うことでクランプ本体１０Ａを拡
径状態に保持し、両摘み片１３，１７を摘んで周方向に
接近させると、係合部５５と係止爪５３との係止が解除
されると共にテーパ部５４と摺動部５６とが摺接し合っ
て両摘み片１３、１７がオフセットされる。以後、第１
０，１１実施形態と同様にしてホースクランプ１０は縮
径状態へと移行する。<Twelfth Embodiment> In the tenth embodiment described above, the engaging portion 48 is formed in a hook shape. However, as shown in FIG. 28, a square shape is formed from one side edge of the second knob 17. The engaging portion 55 (locking portion) of the above is formed so as to stand in the radial direction so as to be able to be locked with the locking claw 53 (receiving portion), and the sliding portion 56 is connected to the engaging portion
5 is formed by cutting and raising in the circumferential direction at a position displaced by a predetermined distance from the tip end side of the second knob 17 to the tapered portion 54.
It may be slidable with the (guide portion). The clamp body 10A is held in the expanded state by the engagement portion 55 catching with the locking claw 53, and when both the gripping pieces 13 and 17 are gripped to approach in the circumferential direction, the engagement portion 55 and the locking claw 53 are held. At the same time that the lock of the knobs 13 and 17 is released, the taper portion 54 and the sliding portion 56 are brought into sliding contact with each other, and the knobs 13 and 17 are offset. After that, the first
The hose clamp 10 shifts to a reduced diameter state in the same manner as the 0, 11 embodiment.

【００６４】＜他の実施形態＞本発明は上記記述及び図
面によって説明した実施形態に限定されるものではな
く、例えば次のような実施形態も本発明の技術的範囲に
含まれ、さらに、下記以外にも要旨を逸脱しない範囲内
で種々変更して実施することができる。<Other Embodiments> The present invention is not limited to the embodiments described above and illustrated in the drawings. For example, the following embodiments are also included in the technical scope of the present invention. In addition to the above, various modifications can be made without departing from the scope of the invention.

【００６５】（１）上記した第１から第５実施形態で
は、操作部１４に孔を開口して形成した係止孔１５にて
係止爪１８との係止を行っているが、例えば操作部１４
を凹設して係止爪１８との係止部分を設けても良い。（２）上記した第２実施形態において、第１摘み片１３
に補助片２１を設けたが、係止孔１５の孔縁に両摘み片
１３，１７を近接させる操作に伴い案内面２０と相互に
押し合うことが可能な補助面を設けても良い。(1) In the above-mentioned first to fifth embodiments, the locking claw 18 is locked by the locking hole 15 formed by opening a hole in the operation portion 14, but for example, the operation is performed. Part 14
May be recessed to provide an engaging portion with the engaging claw 18. (2) In the second embodiment described above, the first knob 13
Although the auxiliary piece 21 is provided in the above, an auxiliary surface that can press each other with the guide surface 20 in accordance with the operation of bringing both the knob pieces 13 and 17 close to the hole edge of the locking hole 15 may be provided.

【００６６】（３）上記した第２実施形態では、補助片
２１により両摘み片１３，１７を近接させる摘み操作の
規制も兼ねたが、例えばこの補助片２１の先端部分に第
２摘み片１７に当接する規制部を新たに設けて規制効果
を向上させても良い。(3) In the above-described second embodiment, the auxiliary piece 21 also serves as the restriction of the picking operation for bringing the two gripping pieces 13 and 17 close to each other. For example, the second gripping piece 17 is provided at the tip of the auxiliary piece 21. It is also possible to newly provide a restricting portion that abuts against to improve the restricting effect.

【００６７】（４）また係止孔１５の孔縁に係止爪１８
の案内面２０を当接させることで規制部としても良い。（５）上記した第６実施形態では、操作部１４に凹み形
成された係止凹部３０に係止爪３９を引っ掛けてホース
クランプ１０を拡径状態に保持したが、貫通した孔状の
ものに係止爪３９を嵌め入れても保持してもよく、ま
た、凹みも孔もない操作部の面上に係止爪３９を当接さ
せてこれらの間に働く摩擦力によってホースクランプ１
０を拡径状態に保持しても良い。(4) Further, the locking claw 18 is provided on the edge of the locking hole 15.
The regulating portion may be formed by contacting the guide surface 20 of. (5) In the sixth embodiment described above, the locking claw 39 is hooked on the locking recess 30 formed in the operation portion 14 to hold the hose clamp 10 in the expanded state, but it is possible to use a hole having a penetrating hole. The locking claw 39 may be fitted in or held, and the hose clamp 1 may be brought into contact with the locking claw 39 on the surface of the operating portion having no recess or hole and the frictional force acting between them.
0 may be held in the expanded state.

[Brief description of drawings]

【図１】本発明の第１実施形態におけるホースクランプ
の展開図FIG. 1 is a development view of a hose clamp according to a first embodiment of the present invention.

【図２】ホースクランプが拡径状態に保持された状態を
示す部分断面図FIG. 2 is a partial cross-sectional view showing a state where the hose clamp is held in a diameter-expanded state.

【図３】拡径状態の係止を解除した様子を示す部分断面
図FIG. 3 is a partial cross-sectional view showing a state where the locking in the expanded state is released.

【図４】縮径状態を示す正面図FIG. 4 is a front view showing a reduced diameter state.

【図５】本発明の第２実施形態におけるホースクランプ
の展開図FIG. 5 is a development view of a hose clamp according to a second embodiment of the present invention.

【図６】ホースクランプが拡径状態に保持された状態を
示す部分断面図FIG. 6 is a partial cross-sectional view showing a state in which the hose clamp is held in an expanded state.

【図７】拡径状態の係止を解除した様子を示す部分断面
図FIG. 7 is a partial cross-sectional view showing the unlocked state in the expanded state.

【図８】縮径状態を示す正面図FIG. 8 is a front view showing a reduced diameter state.

【図９】本発明の第３実施形態におけるホースクランプ
の斜視図FIG. 9 is a perspective view of a hose clamp according to a third embodiment of the present invention.

【図１０】本発明の第４実施形態におけるホースクラン
プの斜視図FIG. 10 is a perspective view of a hose clamp according to a fourth embodiment of the present invention.

【図１１】本発明の第５実施形態におけるホースクラン
プの部分断面図FIG. 11 is a partial sectional view of a hose clamp according to a fifth embodiment of the present invention.

【図１２】本発明の第６実施形態におけるホースクラン
プの展開図FIG. 12 is a development view of a hose clamp according to a sixth embodiment of the present invention.

【図１３】ホースクランプが拡径状態に保持された状態
を示す正面図FIG. 13 is a front view showing a state in which the hose clamp is held in an expanded state.

【図１４】ホースクランプが拡径状態に保持された状態
を示す斜視図FIG. 14 is a perspective view showing a state where the hose clamp is held in the expanded state.

【図１５】両摘み片がオフセット解除方向へ誘導された
様子を示す斜視図FIG. 15 is a perspective view showing a state in which both knobs are guided in an offset releasing direction.

【図１６】両摘み片が拡径状態に保持された様子を示す
部分上面図FIG. 16 is a partial top view showing a state in which both knob pieces are held in a diameter-expanded state.

【図１７】拡径状態を保持している係止が解除される途
中の状態を示す部分上面図FIG. 17 is a partial top view showing a state where the lock holding the expanded diameter state is being released.

【図１８】拡径状態が解除された様子を示す部分上面図FIG. 18 is a partial top view showing a state where the expanded diameter state has been released.

【図１９】縮径状態のホースクランプの正面図FIG. 19 is a front view of the hose clamp in a reduced diameter state.

【図２０】本発明の第７実施形態におけるホースクラン
プの斜視図FIG. 20 is a perspective view of a hose clamp according to a seventh embodiment of the present invention.

【図２１】（ａ）拡径状態で保持されている様子を示す
概念図（ｂ）拡径状態が解除される様子を示す概念図FIG. 21 (a) is a conceptual diagram showing a state in which the expanded state is held, and (b) is a conceptual diagram showing a state in which the expanded state is released.

【図２２】本発明の第８実施形態におけるホースクラン
プの斜視図FIG. 22 is a perspective view of a hose clamp according to an eighth embodiment of the present invention.

【図２３】本発明の第９実施形態におけるホースクラン
プの斜視図FIG. 23 is a perspective view of a hose clamp according to a ninth embodiment of the present invention.

【図２４】本発明の第１０実施形態におけるホースクラ
ンプが拡径状態に保持された状態を示す斜視図FIG. 24 is a perspective view showing a state in which a hose clamp according to a tenth embodiment of the present invention is held in a diameter-expanded state.

【図２５】テーパ部と摺動部が摺動しオフセット方向へ
両摘み片を誘導する様子を示す斜視図FIG. 25 is a perspective view showing a state where the taper portion and the sliding portion slide to guide the two gripping pieces in the offset direction.

【図２６】係止爪が係合部を乗り越える様子を示す斜視
図FIG. 26 is a perspective view showing how the locking claws pass over the engaging portion.

【図２７】本発明の第１１実施形態におけるホースクラ
ンプの拡径状態を示す斜視図FIG. 27 is a perspective view showing the expanded diameter state of the hose clamp according to the eleventh embodiment of the present invention.

【図２８】本発明の第１２実施形態におけるホースクラ
ンプの拡径状態を示す斜視図FIG. 28 is a perspective view showing the expanded diameter state of the hose clamp according to the twelfth embodiment of the present invention.

【図２９】従来例における拡径状態の係止を解除する様
子を示す斜視図FIG. 29 is a perspective view showing a state in which the locking of the expanded state in the conventional example is released.

[Explanation of symbols]

１０…ホースクランプ１０Ａ…クランプ本体１３…第１摘み片１５…係止孔（係合部）１７…第２摘み片１８，３９…係止爪（係止部）２０，４１…案内面２１…補助片（誘導部）３０…係止凹部（受け部）３１…通過凹部３７，４６，５４…テーパ部（誘導部）４５，５３，４８Ｂ…係止爪（受け部）４８，５０，５２，５３Ａ，５５……係合部（係止部）４８Ａ……逃がし面 10 ... Hose clamp 10A ... Clamp body 13 ... 1st pick 15 ... Locking hole (engaging part) 17 ... Second pick 18, 39 ... Locking claw (locking part) 20, 41 ... Guideway 21 ... Auxiliary piece (guidance part) 30 ... Locking recess (receiving part) 31 ... Passage recess 37, 46, 54 ... Tapered part (guide part) 45, 53, 48B ... Locking claw (receiving part) 48, 50, 52, 53A, 55 ... Engaging part (locking part) 48A: Relief surface

Claims

[Claims]

1. A clamp main body formed by bending a leaf spring material in an annular shape, a first knob piece that is erected radially outward on one end side of the clamp main body, and a radial direction on the other end side. Standing outward and passing through the arch portion of the first knob, the first
A hose clamp comprising: a second gripping piece that faces the gripping piece; and a locking means that is provided on both of the gripping pieces and holds the clamp body in the expanded state by locking each other. The locking means is capable of holding the expanded diameter state by locking the two gripping pieces in an offset state that is offset in a direction orthogonal to the circumferential direction of the clamp body from a neutral state in which the two gripping pieces face each other. A hose clamp characterized by that.

2. A clamp body formed by bending a leaf spring material into an annular shape, a first knob piece that is erected radially outward on one end side of the clamp body, and a radial direction on the other end side. Standing outward and passing through the arch portion of the first knob, the first
A hose clamp comprising: a second gripping piece that faces the gripping piece; and a locking means that is provided on both of the gripping pieces and holds the clamp body in the expanded state by locking each other. A guide portion having an inclined surface is provided on either one of the two knobs, and when the two knobs are operated in a direction in which they approach each other along the circumferential direction of the clamp main body, the other inclined surface is the knob. A hose clamp characterized in that the two gripping pieces can be relatively displaced in a direction in which the locking of the locking means is released by slidingly contacting one side.

3. The expanded state can be retained by the locking means by locking the knobs in a state in which the knobs are offset radially outward of the clamp body from a neutral state in which the knobs face each other. In the above, the locking means includes a locking portion that is provided to project radially outward in the second knob, and a locking portion that is provided in an arch portion of the first knob. When the locking portion is locked to the receiving portion in a diameter-expanded state and both gripping pieces are gripped to shift to a diameter-reducing state, the second gripping piece is moved to the first gripping portion. With the relative displacement inward in the radial direction with respect to the piece, it is possible to pass through the arch portion of the first knob piece and to pass therethrough, and a guide surface is formed on the upper surface of the locking portion. The guide surface when passing through the arch portion of the first knob Serial By contacting inner edge in sliding of the arch portion, the said second knob piece first
2. The hose clamp according to claim 1, wherein the hose clamp can be guided in the slip-through movement by being displaced radially inward relative to the knob.

4. The locking means is capable of holding the expanded diameter state by locking both of the knob pieces in an axial direction of the clamp body from the neutral state, and holding the expanded state. The means includes a locking portion that projects radially outward in the second knob, and a receiving portion that is provided in an arch portion of the first knob and that can lock with the locking portion. Further, the locking portion is locked to the receiving portion in the expanded state, and when the both gripping pieces are gripped to move to the shrinking status, the second gripping piece is axially moved with respect to the first gripping piece. Along with the relative displacement, it moves to and can pass through the passage recess located in a position adjacent to the side of the receiving portion, and further, the locking portion moves toward the passage recess. A bent guide surface is formed, and the locking claw passes through the passage recess. The guide surface is slidably in contact with the inner edge of the passage recess, so that the second gripping piece can be displaced relative to the first gripping piece in the axial direction of the clamp body to guide the passing operation. The hose clamp according to claim 1 or 2, characterized in that.

5. The hose clamp according to claim 2, wherein the receiving portion or the locking portion is formed also as the guiding portion.

6. The locking means according to claim 5, wherein the locking part or the receiving part projects toward a knob on a side opposite to a knob on a side where the locking part or the receiving part is provided. At the same time, the locking means can hold the expanded state by engaging with each other when the knobs are in a neutral state in which they face each other, and the locking portion holds the two knobs with respect to each other. When the clamp body is guided along the circumferential direction to guide the clamp body from the neutral state in which the two gripping pieces face each other by the inclined surface to the offset position axially displaced from each other, the inclined surface is moved. The engagement with the receiving portion is disengaged by overcoming, and the elastic reaction force accumulated with the movement to the offset position thereafter wraps around to the back side of the receiving portion while When the clamp main body shifts to a reduced diameter state, both catching pieces are slidably contacted with each other when the clamp body shifts to a reduced diameter state. Is relatively displaced in the radial direction to guide the relative movement of the locking portion to the lower side of the receiving portion, and after that, the clamp body can be shifted to the reduced diameter state while elastically returning. The hose clamp according to claim 5, wherein the hose clamp has the following configuration.