JP2016138612A

JP2016138612A - Joint device

Info

Publication number: JP2016138612A
Application number: JP2015014386A
Authority: JP
Inventors: 水口　憲男; Norio Mizuguchi; 憲男水口
Original assignee: Nasco Fitting Co Ltd
Current assignee: Nasco Fitting Co Ltd
Priority date: 2015-01-28
Filing date: 2015-01-28
Publication date: 2016-08-04
Anticipated expiration: 2035-01-28
Also published as: JP5788113B1

Abstract

PROBLEM TO BE SOLVED: To provide a joint capable of improving work efficiency.SOLUTION: A joint device includes a joint body, and a fastening member 20 fastening an outer periphery of a hose externally fitted to the joint body. The fastening member 20 includes: a plurality of arcuate holders 21A and 21B; hinge means 30 for connecting the holders 21A and 21B; a supporting body 33 attached to the first holder 21A, swingable about a first supporting shaft 34A parallel to an axis, and having a through hole 35 orthogonal to the first supporting shaft 34A; a bolt 36 inserted into the through hole 35 to be supported in such a manner that only rotation is allowed; and a nut 39 attached to the second holder 21B, swingable about a second supporting shaft 34B parallel to the axis, and to which the bolt 36 can be screwed.SELECTED DRAWING: Figure 3

Description

本発明は、継手装置に関するものである。 The present invention relates to a joint device.

特許文献１には、特許文献１には、食品や飲料等の液体を流すために使用される継手装置として、円筒形のニップルの外周にホースを外嵌し、ホースの外周に一対の半割状のホルダを被せ、この一対のホルダをボルトとナットで固定する技術が開示されている。 Patent Document 1 discloses that a joint device used for flowing a liquid such as food or beverage includes a hose fitted around the outer circumference of a cylindrical nipple and a pair of halves around the outer circumference of the hose. A technique for covering a pair of holders and fixing the pair of holders with bolts and nuts is disclosed.

特開２０１１−８９５７５号公報JP 2011-89575 A

上記の継手装置は、一対のホルダとボルトとナットが、全て、分離した状態で準備されているため、ホースをニップルに接続してホルダで固定する際の作業性が良くなかった。 Since the pair of holders, the bolts, and the nuts are all prepared in a separated state, the coupling device described above has poor workability when the hose is connected to the nipple and fixed with the holder.

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、作業性の向上を図ることを目的とする。 The present invention has been completed based on the above circumstances, and an object thereof is to improve workability.

本発明は、
筒状をなし、前方からホースが外嵌される継手本体と、
前記継手本体に外嵌された前記ホースの外周を包囲して締め付ける締付部材とを備えた継手装置であって、
前記締付部材は、
円弧状をなす複数のホルダと、
前記複数のホルダを、前記継手本体の軸線と平行な連結軸を支点として相対変位可能に連結するヒンジ手段と、
前記複数のホルダのうち第１の前記ホルダに取り付けられ、前記継手本体の軸線と平行な第１支持軸を中心として揺動可能であり、前記第１支持軸と直交する貫通孔が形成された支持体と、
前記貫通孔に回転のみを可能に貫通して支持されたボルトと、
前記複数のホルダのうち第２の前記ホルダに取り付けられ、前記継手本体の軸線と平行な第２支持軸を中心として揺動可能であり、前記ボルトが螺合可能なナットとを備えて構成されているところに特徴を有する。 The present invention
A joint body that has a cylindrical shape and a hose is fitted from the front,
A joint device including a fastening member that surrounds and tightens an outer periphery of the hose fitted on the joint body;
The fastening member is
A plurality of arcuate holders;
Hinge means for connecting the plurality of holders so as to be capable of relative displacement with a connecting shaft parallel to the axis of the joint body as a fulcrum;
A through hole that is attached to the first holder among the plurality of holders, is swingable about a first support shaft parallel to the axis of the joint body, and is orthogonal to the first support shaft is formed. A support;
A bolt supported by penetrating only through the through hole, and
The nut is attached to the second holder among the plurality of holders, and is swingable about a second support shaft parallel to the axis of the joint body, and includes a nut to which the bolt can be screwed. It has the characteristics in the place.

パイプを接続する際には、継手本体にパイプを外嵌し、そのパイプの外周に複数のホルダを被せ、ボルトをナットに螺合してねじ込む。すると、このねじ込み作用により、複数のホルダが接近するように変位してパイプの外周を締め付けるので、パイプが継手本体の外周に接続される。本発明は、締付部材を構成する複数の部品が、分離しない状態で組み付けられているので、各部品が分離している場合に比べると、作業性がよい。 When connecting the pipe, the pipe is externally fitted to the joint body, a plurality of holders are put on the outer periphery of the pipe, and the bolt is screwed into the nut and screwed. Then, the screwing action displaces the plurality of holders so as to approach each other and tightens the outer periphery of the pipe, so that the pipe is connected to the outer periphery of the joint body. In the present invention, since a plurality of parts constituting the tightening member are assembled in a state where they are not separated, the workability is better than when each part is separated.

実施例１の継手装置にホースを接続した状態をあらわす断面図Sectional drawing showing the state which connected the hose to the coupling apparatus of Example 1 締付部材を締め付け状態にしたときの側面図Side view when tightening member is tightened ボルトとナットを螺合した状態をあらわす締付部材の一部切欠正面図Partially cutaway front view of a tightening member that shows the bolt and nut screwed together 締付部材を締め付け状態にしたときの平面図Top view when the tightening member is in the tightened state 離脱部材を用いてホルダをホースから離脱している様子をあらわす断面図Sectional view showing how the holder is removed from the hose using the release member ボルトとナットを離脱してホルダ同士を離間させた状態をあらわす一部切欠正面図Partially cutaway front view showing the state where the bolts and nuts are detached and the holders are separated. 実施例２の締付部材の正面図Front view of the fastening member of Example 2

（ａ）本発明は、
前記ヒンジ手段が、周方向に隣り合う前記ホルダの両方に設けた複数の連結軸を備えていてもよい。
この構成によれば、周方向に隣り合うホルダを相対変位させる際に、ホルダの可動形態の自由度が高いので、作業性に優れる。 (A) The present invention
The hinge means may include a plurality of connecting shafts provided on both of the holders adjacent in the circumferential direction.
According to this configuration, when the holders adjacent to each other in the circumferential direction are relatively displaced, the degree of freedom of the movable form of the holder is high, so that the workability is excellent.

（ｂ）本発明は、
前記継手本体の外周には、軸線と交差して後方に面する係止面と、前記係止面の外周縁から前方に向かって縮径するように延出したテーパ面とが形成され、
前記ホルダの内周には、部分的に内径寸法を小さくした小径部が形成され、
軸線方向において、前記小径部が、前記テーパ面の後端部及び前記係止面と対応するように配置されていてもよい。
この構成によれば、ホースが、継手本体の外周のうち外径寸法の大きい領域と、ホルダの内周のうち内径寸法の小さい領域との間で径方向に挟み付けられるので、シール性能に優れている。 (B) The present invention
On the outer periphery of the joint body, a locking surface that intersects the axis and faces rearward, and a tapered surface that extends so as to reduce the diameter from the outer peripheral edge of the locking surface toward the front, are formed.
On the inner periphery of the holder, a small-diameter portion with a partially reduced inner diameter is formed,
In the axial direction, the small diameter portion may be arranged to correspond to the rear end portion of the tapered surface and the locking surface.
According to this configuration, the hose is sandwiched in a radial direction between a region having a large outer diameter in the outer periphery of the joint body and a region having a small inner diameter in the inner periphery of the holder. ing.

（ｃ）本発明は、
前記ホルダには、径方向に貫通する雌ネジ孔が形成され、
前記雌ネジ孔には、前記ホルダの外周側からねじ込まれることで前記継手本体の外周に当接する離脱部材が、取り付け可能となっていてもよい。
ホースを外す際には、ボルトを緩み方向に回転することにより、第１のホルダと第２のホルダが径方向及び周方向に離間させるのであるが、このとき、一方のホルダがホースから外れても、他方のホルダの内周がホースの外周に強く食い込んだままになることが懸念される。この場合は、雌ネジ孔に離脱部材をねじ込んで継手本体の外周に押し当てれば、他方のホルダをホルダの外周から離脱させることができる。 (C) The present invention
The holder is formed with a female screw hole penetrating in the radial direction,
A release member that contacts the outer periphery of the joint body by being screwed in from the outer peripheral side of the holder may be attachable to the female screw hole.
When removing the hose, the first holder and the second holder are separated from each other in the radial direction and the circumferential direction by rotating the bolt in the loosening direction. However, there is a concern that the inner circumference of the other holder remains strongly biting into the outer circumference of the hose. In this case, the other holder can be detached from the outer periphery of the holder by screwing the release member into the female screw hole and pressing it against the outer periphery of the joint body.

（ｄ）本発明は、
前記継手本体の前端縁部には、外径寸法が軸線方向において一定寸法であり、前記ホースの内周に密着する肉薄の定径部が形成されていてもよい。
この構成によれば、継手本体の前端縁部において、継手本体の外周とホースの内周との間に隙間が生じ難くなる。 (D) The present invention
The front end edge of the joint body may be formed with a thin constant-diameter portion having an outer diameter that is constant in the axial direction and in close contact with the inner periphery of the hose.
According to this structure, it becomes difficult to produce a clearance gap between the outer periphery of a joint main body, and the inner periphery of a hose in the front-end edge part of a joint main body.

＜実施例１＞
以下、本発明を具体化した実施例１を図１〜図６を参照して説明する。本実施例の継手装置Ｊは、継手本体１０と、締付部材２０と、離脱部材４２とを備えて構成されている。継手本体１０には、その前方から円筒状のホースＨが外嵌されるようになっている。継手本体１０に外嵌したホースＨは、締付部材２０により継手本体１０から離脱しないように且つ液密状に接続されるようになっている。離脱部材４２は、一般に蝶ネジと称される汎用部品である。ホースＨを継手装置Ｊに接続する際には使用されず、ホースＨを継手装置Ｊから外す場合にのみ用いられる。 <Example 1>
A first embodiment of the present invention will be described below with reference to FIGS. The joint device J of the present embodiment includes a joint body 10, a tightening member 20, and a detaching member 42. A cylindrical hose H is fitted on the joint body 10 from the front. The hose H fitted on the joint body 10 is connected to the joint body 10 in a liquid-tight manner so as not to be detached from the joint body 10 by the fastening member 20. The detaching member 42 is a general-purpose component generally called a thumbscrew. It is not used when the hose H is connected to the joint device J, and is used only when the hose H is removed from the joint device J.

継手本体１０は、金属製の単一部品であり、その軸線と直角に切断した断面は、真円形である。継手本体１０の後端部は、図示しない機器等に取り付けるためのフランジ状の取付部１１となっている。継手本体１０の外周のうち取付部１１よりも少し前方の領域には、拡径部１２が形成されている。拡径部１２の外周には、全周に亘って連続した外周溝１３が形成されている。継手本体１０の外周のうち拡径部１２よりも前方の領域には、２つの抜止め部１４が、前後に連なるように形成されている。 The joint body 10 is a single metal part, and a cross section cut at right angles to the axis thereof is a true circle. The rear end portion of the joint body 10 is a flange-like attachment portion 11 for attachment to a device or the like (not shown). An enlarged diameter portion 12 is formed in a region slightly ahead of the attachment portion 11 in the outer periphery of the joint body 10. An outer peripheral groove 13 that is continuous over the entire periphery is formed on the outer periphery of the enlarged diameter portion 12. Two retaining portions 14 are formed on the outer periphery of the joint main body 10 in front of the enlarged diameter portion 12 so as to be continuous in the front-rear direction.

各抜止め部１４は、夫々、軸線と交差するとともに後方に面する係止面１５と、係止面１５の外周縁から前方に向かって次第に外径寸法が小さくなるように傾斜したテーパ面１６とを有している。また、継手本体１０の前端縁部には、前側のテーパ面１６の前端に滑らかに連なる定径部１７が形成されている。定径部１７は、軸線方向において所定の領域に亘って形成されており、定径部１７の外径寸法は全長に亘って一定となっている。 Each retaining portion 14 includes a locking surface 15 that intersects the axis and faces rearward, and a tapered surface 16 that is inclined so that the outer diameter dimension gradually decreases from the outer peripheral edge of the locking surface 15 toward the front. And have. A constant-diameter portion 17 that is smoothly connected to the front end of the front tapered surface 16 is formed at the front end edge of the joint body 10. The constant diameter portion 17 is formed over a predetermined region in the axial direction, and the outer diameter of the constant diameter portion 17 is constant over the entire length.

締付部材２０は、第１ホルダ２１Ａ（請求項に記載のホルダ）と、第２ホルダ２１Ｂ（請求項に記載のホルダ）と、ヒンジ手段３０と、支持体３３と、ボルト３６と、ナット３９とを備えて構成されている。締付部材２０は、別々に製造された複数の金属部品を、互いに分離しないように連結又は組み付けることにより、ユニット化したものである。 The tightening member 20 includes a first holder 21A (a holder according to claims), a second holder 21B (a holder according to claims), a hinge means 30, a support 33, a bolt 36, and a nut 39. And is configured. The fastening member 20 is formed as a unit by connecting or assembling a plurality of separately manufactured metal parts so as not to be separated from each other.

第１ホルダ２１Ａと第２ホルダ２１Ｂは、同一の形状及び寸法を有する同一種類の部品である。各ホルダ２１Ａ，２１Ｂは、夫々、略半円弧形をなす本体部２２と、前後に間隔を空けて対向する２枚の板部によって構成された連結用軸受部２７Ａ，２７Ｂと、前後に間隔を空けて対向する２枚の板部によって構成された締付用軸受部２８Ａ，２８Ｂとを備えた単一部品である。 The first holder 21A and the second holder 21B are the same type of parts having the same shape and dimensions. Each of the holders 21A and 21B includes a main body portion 22 having a substantially semicircular arc shape, and coupling bearing portions 27A and 27B formed by two plate portions opposed to each other with a space in the front and rear direction, and a space in the front and back direction. It is a single part provided with tightening bearing portions 28A and 28B formed by two plate portions facing each other with a gap therebetween.

本体部２２の内周には、その後端よりも少し前方の領域を凹ませた周方向の内周溝２３が形成されている。本体部２２の内周後端部、つまり内周溝２３よりも後方の領域は、内周溝２３の後側の内面を構成する係止リブ２４となっている。ホルダ２１Ａ，２１Ｂのうち内周溝２３と対応する領域には、ホルダ２１Ａ，２１Ｂを径方向に貫通する雌ネジ孔２５が形成されている。雌ネジ孔２５には離脱部材４２がねじ込まれるようになっている。本体部２２の内周のうち内周溝２３よりも前方の広い領域には、４つの小径部２６が、前後方向（軸線方向）に間隔を空けて形成されている。４つの小径部２６の曲率半径は全て同じ寸法であり、この寸法は、継手本体１０に接続されていない状態におけるホースＨの外周の曲率半径よりも小さい。 A circumferential inner circumferential groove 23 is formed in the inner circumference of the main body 22, with a region slightly forward of the rear end thereof being recessed. A rear end portion of the inner periphery of the main body 22, that is, a region behind the inner peripheral groove 23, is a locking rib 24 that constitutes an inner surface on the rear side of the inner peripheral groove 23. A female screw hole 25 penetrating the holders 21A and 21B in the radial direction is formed in a region corresponding to the inner circumferential groove 23 in the holders 21A and 21B. A detaching member 42 is screwed into the female screw hole 25. Four small-diameter portions 26 are formed in a wide area in front of the inner peripheral groove 23 in the inner periphery of the main body portion 22 with an interval in the front-rear direction (axial direction). The radius of curvature of the four small diameter portions 26 are all the same dimension, and this dimension is smaller than the radius of curvature of the outer periphery of the hose H when not connected to the joint body 10.

第１ホルダ２１Ａに設けた第１連結用軸受部２７Ａは、第１ホルダ２１Ａの外周から突出した形態である。第１連結用軸受部２７Ａは、第１ホルダ２１Ａの周方向における一方の端縁部に配置されている。第１ホルダ２１Ａに設けた第１締付用軸受部２８Ａは、第１ホルダ２１Ａの外周から突出した形態である。第１締付用軸受部２８Ａは、第１ホルダ２１Ａの周方向における他方（第１連結用軸受部２７Ａとは反対側）の端縁部に配置されている。 27 A of 1st connection bearing parts provided in the 1st holder 21A are the forms protruded from the outer periphery of 21 A of 1st holders. 27 A of 1st connection bearing parts are arrange | positioned at the one edge part in the circumferential direction of 21 A of 1st holders. The first tightening bearing portion 28A provided in the first holder 21A has a form protruding from the outer periphery of the first holder 21A. The first tightening bearing portion 28A is disposed at the other edge portion of the first holder 21A in the circumferential direction (the side opposite to the first coupling bearing portion 27A).

第２ホルダ２１Ｂに設けた第２連結用軸受部２７Ｂは、第２ホルダ２１Ｂの外周から突出した形態である。第２連結用軸受部２７Ｂは、第２ホルダ２１Ｂの周方向における一方の端縁部に配置されている。第２ホルダ２１Ｂに設けた第２締付用軸受部２８Ｂは、第２ホルダ２１Ｂの外周から突出した形態である。第２締付用軸受部２８Ｂは、第２ホルダ２１Ｂの周方向における他方（第２連結用軸受部２７Ｂとは反対側）の端縁部に配置されている。 The second connecting bearing portion 27B provided on the second holder 21B has a form protruding from the outer periphery of the second holder 21B. The second coupling bearing portion 27B is disposed at one end edge portion in the circumferential direction of the second holder 21B. The second tightening bearing portion 28B provided on the second holder 21B has a form protruding from the outer periphery of the second holder 21B. The second tightening bearing portion 28B is disposed at the other edge portion (the opposite side to the second coupling bearing portion 27B) in the circumferential direction of the second holder 21B.

ヒンジ手段３０は、第１連結用軸受部２７Ａと、第２連結用軸受部２７Ｂと、第１連結軸３１Ａと、第２連結軸３１Ｂと、連結部材３２とを備えて構成されている。第１連結用軸受部２７Ａには、第１連結軸３１Ａが、その軸線を継手本体１０の軸線と平行に向けて相対回転可能に取り付けられている。第２連結用軸受部２７Ｂには、第２連結軸３１Ｂが、その軸線を継手本体１０の軸線及び第１連結軸３１Ａの軸線と平行に向けて相対回転可能に取り付けられている。連結部材３２の一方の端部は、第１連結軸３１Ａに相対回転可能に支持され、連結部材３２の他方の端部は、第２連結軸３１Ｂに相対回転可能に支持されている。以上により、第１ホルダ２１Ａと第２ホルダ２１Ｂが、ヒンジ手段３０により、継手本体１０の軸線と平行な連結軸３１Ａ，３１Ｂを支点として相対変位し得るように連結されている。 The hinge means 30 includes a first connecting bearing portion 27A, a second connecting bearing portion 27B, a first connecting shaft 31A, a second connecting shaft 31B, and a connecting member 32. The first connecting shaft 31A is attached to the first connecting bearing portion 27A so that its axis is parallel to the axis of the joint body 10 and is relatively rotatable. The second connecting shaft 31B is attached to the second connecting bearing portion 27B so as to be relatively rotatable with its axis parallel to the axis of the joint body 10 and the axis of the first connecting shaft 31A. One end of the connecting member 32 is supported by the first connecting shaft 31A so as to be relatively rotatable, and the other end of the connecting member 32 is supported by the second connecting shaft 31B so as to be relatively rotatable. As described above, the first holder 21A and the second holder 21B are connected by the hinge means 30 so that they can be relatively displaced using the connecting shafts 31A and 31B parallel to the axis of the joint body 10 as fulcrums.

支持体３３は、第１締付用軸受部２８Ａを構成する２枚の板部の間に配されていて、支持体３３の両端部が第１締付用軸受部２８Ａに相対回転可能に支持されている。第１締付用軸受部２８Ａに取り付けられた支持体３３は、継手本体１０の軸線と平行な第１支持軸３４Ａを支点として相対回転し得るようになっている。支持体３３には、第１支持軸３４Ａと直交する貫通孔３５が形成されている。貫通孔３５には、ボルト３６が、貫通孔３５及びボルト３６の軸線を中心とする相対回転のみを可能に取り付けられている。ボルト３６は、支持体３３に対し貫通孔３５の軸線方向に相対移動することはない。ボルト３６のうち支持体３３から第２ホルダ２１Ｂ側へ突出した領域には、雄ネジ部３７が形成されている。また、ボルト３６のうち支持体３３から第２ホルダ２１Ｂとは反対側へ突出した領域には、操作バー３８が取り付けられている。 The support body 33 is disposed between two plate portions constituting the first tightening bearing portion 28A, and both end portions of the support body 33 are supported by the first tightening bearing portion 28A so as to be relatively rotatable. Has been. The support 33 attached to the first tightening bearing portion 28 A can be relatively rotated with a first support shaft 34 A parallel to the axis of the joint body 10 as a fulcrum. A through hole 35 perpendicular to the first support shaft 34A is formed in the support 33. Bolts 36 are attached to the through holes 35 so as to allow only relative rotation about the axes of the through holes 35 and the bolts 36. The bolt 36 does not move relative to the support 33 in the axial direction of the through hole 35. A male screw portion 37 is formed in a region of the bolt 36 that protrudes from the support 33 toward the second holder 21 B. An operation bar 38 is attached to a region of the bolt 36 that protrudes from the support 33 to the side opposite to the second holder 21B.

ナット３９は、第２締付用軸受部２８Ｂを構成する２枚の板部の間に配されていて、ナット３９の両端部が第２締付用軸受部２８Ｂに相対回転可能に支持されている。第２締付用軸受部２８Ｂに取り付けられたナット３９は、継手本体１０の軸線及び第１支持軸３４Ａと平行な第２支持軸３４Ｂを支点として相対回転し得るようになっている。ナット３９には、第２支持軸３４Ｂと直交する締付孔４０が貫通形態で形成され、締付孔４０の内周には雌ネジ部４１が形成されている。 The nut 39 is disposed between the two plate portions constituting the second tightening bearing portion 28B, and both end portions of the nut 39 are supported by the second tightening bearing portion 28B so as to be relatively rotatable. Yes. The nut 39 attached to the second tightening bearing portion 28B can rotate relative to the axis of the joint body 10 and the second support shaft 34B parallel to the first support shaft 34A. A tightening hole 40 orthogonal to the second support shaft 34 B is formed in the nut 39 in a penetrating form, and a female screw portion 41 is formed on the inner periphery of the tightening hole 40.

継手装置ＪにホースＨを接続する際には、ホースＨを前方から継手本体１０に外嵌し、ホースＨの先端を拡径部１２の前面に突き当てる。この後、ボルト３６とナット３９が離脱した状態で、２つのホルダ２１Ａ，２１ＢをホースＨの外周に被せる。このとき、ホルダ２１Ａ，２１Ｂの係止リブ２４を継手本体１０の外周溝１３に嵌入することにより、両ホルダ２１Ａ，２１Ｂが継手本体１０に対して軸線方向（前後方向）に位置決めされる。この後、ボルト３６の雄ネジ部３７をナット３９の雌ネジ部４１に螺合し、操作バー３８を操作してボルト３６を締め付ける。すると、雄ネジ部３７とナット３９（雌ネジ部４１）との螺合により、支持体３３とナット３９が強制的に接近させられる。これに伴い、両ホルダ２１Ａ，２１Ｂも、次第に接近してホースＨの外周に食い込み、ーストッパの内周を継手本体１０の外周に密着させる。以上により、ホースＨの接続作業が完了する。 When connecting the hose H to the joint device J, the hose H is externally fitted to the joint body 10 from the front, and the tip of the hose H is abutted against the front surface of the enlarged diameter portion 12. Thereafter, the two holders 21 A and 21 B are put on the outer periphery of the hose H with the bolt 36 and the nut 39 detached. At this time, the retaining ribs 24 of the holders 21 A and 21 B are fitted into the outer peripheral groove 13 of the joint body 10, whereby the both holders 21 A and 21 B are positioned in the axial direction (front-rear direction) with respect to the joint body 10. Thereafter, the male threaded portion 37 of the bolt 36 is screwed into the female threaded portion 41 of the nut 39, and the operation bar 38 is operated to tighten the bolt 36. Then, the support 33 and the nut 39 are forcibly brought close to each other by screwing the male screw portion 37 and the nut 39 (female screw portion 41). Along with this, both holders 21A and 21B gradually approach and bite into the outer periphery of the hose H, and the inner periphery of the stopper is brought into close contact with the outer periphery of the joint body 10. Thus, the connection work of the hose H is completed.

継手本体１０に両ホルダ２１Ａ，２１Ｂが位置決めされると、両ホルダ２１Ａ，２１Ｂの内周の小径部２６と、継手本体１０の外周のうち係止面１５及びテーパ面１６の後端部とが、軸線方向において同じ位置となるような対応関係となる。これにより、ホースＨは、継手本体１０の外周におけるホースＨとの接触領域のうち外径寸法が最大となる部分と、両ホルダ２１Ａ，２１Ｂの内周におけるホルダ２１Ａ，２１Ｂとの接触領域のうち曲率半径が最小となる部分との間で、径方向に挟み付けられて潰れ変形する。この潰れ変形した部分では、ホースＨの内周と継手本体１０の外周との隙間が液密状にシールされる。また、継手本体１０の前端縁部には、外径寸法が軸線方向において一定寸法であり、ホースＨの内周に密着する肉薄の定径部１７が形成されている。このような定径部１７を形成したことにより、継手本体１０の前端縁部においては、継手本体１０の外周とホースＨの内周との間に隙間が生じ難くなる。 When the holders 21A and 21B are positioned on the joint body 10, the inner diameter small-diameter portion 26 of the holders 21A and 21B and the rear end portions of the locking surface 15 and the tapered surface 16 of the outer periphery of the joint body 10 are formed. The corresponding relationship is the same position in the axial direction. Thereby, the hose H is a part of the contact area with the hose H on the outer periphery of the joint body 10 and the contact area with the holders 21A and 21B on the inner periphery of the holders 21A and 21B. It is sandwiched in the radial direction between the portion having the smallest radius of curvature and deformed. In the crushed and deformed portion, the gap between the inner periphery of the hose H and the outer periphery of the joint body 10 is sealed in a liquid-tight manner. A thin constant-diameter portion 17 that has a constant outer diameter in the axial direction and is in close contact with the inner periphery of the hose H is formed at the front end edge of the joint body 10. By forming such a constant diameter portion 17, a gap is hardly generated between the outer periphery of the joint body 10 and the inner periphery of the hose H at the front end edge portion of the joint body 10.

継手装置ＪからホースＨを外す際には、操作バー３８を操作してボルト３６を緩み方向へ回転させる。すると、雄ネジ部３７とナット３９（雌ネジ部４１）との螺合により、支持体３３とナット３９が強制的に離間させられる。これに伴い、両ホルダ２１Ａ，２１Ｂも、強制的に離間させられてホースＨの外周から外れる。この後は、ホースＨを前方へ引っ張って継手本体１０から外せばよい。以上により、ホースＨを継手装置Ｊから外す作業が完了する。 When removing the hose H from the joint device J, the operation bar 38 is operated to rotate the bolt 36 in the loosening direction. Then, the support 33 and the nut 39 are forcibly separated from each other by screwing the male screw portion 37 and the nut 39 (female screw portion 41). Along with this, both holders 21 A and 21 B are also forcibly separated and detached from the outer periphery of the hose H. Thereafter, the hose H may be pulled forward and removed from the joint body 10. Thus, the operation of removing the hose H from the joint device J is completed.

尚、ホースＨを外す際に、ボルト３６を緩み方向に回転させたときに、第１ホルダ２１Ａと第２ホルダ２１Ｂのうち例えば第１ホルダ２１ＡがホースＨから外れても、第２ホルダ２１Ｂの内周がホースＨの外周に強く食い込んだままになることが懸念される。しかし、ホルダ２１Ａ，２１Ｂには径方向に貫通する雌ネジ孔２５が形成され、この雌ネジ孔２５には、ホルダ２１Ａ，２１Ｂの外周側からねじ込まれることで継手本体１０の外周に当接する離脱部材４２が、取り付け可能となっている。したがって、離脱部材４２を雌ネジ孔２５にねじ込んで、離脱部材４２の先端部を継手本体１０の外周に押し当てれば、ホースＨに食い込んでいるホルダ２１Ａ，２１Ｂを、ホルダ２１Ａ，２１Ｂの外周から離脱させることができる。 When removing the hose H, when the bolt 36 is rotated in the loosening direction, even if, for example, the first holder 21A out of the first holder 21A and the second holder 21B is detached from the hose H, the second holder 21B There is a concern that the inner periphery remains strongly biting into the outer periphery of the hose H. However, the holder 21A, 21B is formed with a female screw hole 25 penetrating in the radial direction, and the female screw hole 25 is screwed from the outer peripheral side of the holder 21A, 21B to come into contact with the outer periphery of the joint body 10. The member 42 can be attached. Therefore, if the detaching member 42 is screwed into the female screw hole 25 and the tip of the detaching member 42 is pressed against the outer periphery of the joint body 10, the holders 21A and 21B biting into the hose H can be removed from the outer periphery of the holders 21A and 21B. Can be withdrawn.

上述のように本実施例の継手装置Ｊは、筒状をなし、前方からホースＨが外嵌される継手本体１０と、継手本体１０部に外嵌されたホースＨの外周を包囲して締め付ける締付部材２０とを備えている。締付部材２０は、円弧状をなす２つ（複数）のホルダ２１Ａ，２１Ｂと、両ホルダ２１Ａ，２１Ｂを、継手本体１０の軸線と平行な連結軸３１Ａ，３１Ｂを支点として相対変位可能に連結するヒンジ手段３０と、第１ホルダ２１Ａに取り付けられ、継手本体１０の軸線と平行な第１支持軸３４Ａを中心として揺動可能な支持体３３を有する。支持体３３には、第１支持軸３４Ａと直交する貫通孔３５が形成され、貫通孔３５には、ボルト３６が回転のみを可能に貫通して支持されている。また、締付部材２０は、第２ホルダ２１Ｂに取り付けられ、継手本体１０の軸線と平行な第２支持軸３４Ｂを中心として揺動可能なナット３９を有している。このナット３９には、ボルト３６が螺合されるようになっいる。 As described above, the coupling device J of the present embodiment has a cylindrical shape, and surrounds and tightens the outer periphery of the joint body 10 to which the hose H is fitted from the front and the hose H fitted to the joint body 10 part. The fastening member 20 is provided. The tightening member 20 connects two (a plurality) of arcuate holders 21 A and 21 B, and both holders 21 A and 21 B so that they can be relatively displaced using connection shafts 31 A and 31 B parallel to the axis of the joint body 10 Hinge means 30, and a support 33 attached to the first holder 21A and swingable about a first support shaft 34A parallel to the axis of the joint body 10. A through hole 35 perpendicular to the first support shaft 34A is formed in the support 33, and a bolt 36 is supported through the through hole 35 so as to be rotatable only. The tightening member 20 includes a nut 39 that is attached to the second holder 21 B and can swing around a second support shaft 34 B that is parallel to the axis of the joint body 10. A bolt 36 is screwed onto the nut 39.

かかる構成の継手装置Ｊにパイプを接続する際には、継手本体１０にパイプを外嵌し、そのパイプの外周に２つのホルダ２１Ａ，２１Ｂを挟むように被せ、ボルト３６をナット３９に螺合してねじ込む。すると、このねじ込み作用により、２つのホルダ２１Ａ，２１Ｂが接近するように変位してパイプの外周を締め付けるので、パイプが継手本体１０の外周に接続される。本実施例の継手装置Ｊは、締付部材２０を構成する複数の部品が、分離しない状態で組み付けられているので、各部品が分離している場合に比べると、作業性に優れている。 When connecting a pipe to the joint device J having such a configuration, the pipe is externally fitted to the joint body 10, and the two holders 21 A and 21 B are put on the outer periphery of the pipe, and the bolt 36 is screwed to the nut 39. And screw in. Then, by this screwing action, the two holders 21A and 21B are displaced so as to approach each other and tighten the outer periphery of the pipe, so that the pipe is connected to the outer periphery of the joint body 10. Since the joint device J of the present embodiment is assembled in a state in which the plurality of parts constituting the tightening member 20 are not separated, the workability is superior to the case where the parts are separated.

また、ヒンジ手段３０は、周方向に隣り合う２つのホルダ２１Ａ，２１Ｂの両方に設けた２つ（複数）の連結軸３１Ａ，３１Ｂを備えている。この構成によれば、周方向に隣り合う両ホルダ２１Ａ，２１Ｂを相対変位させる際に、両ホルダ２１Ａ，２１Ｂの可動形態の自由度が高いので、ホースＨを接続する作業やホースＨを外す作業を行う際の作業性に優れる。 In addition, the hinge means 30 includes two (plural) connecting shafts 31A and 31B provided on both of the two holders 21A and 21B adjacent in the circumferential direction. According to this configuration, when the holders 21A and 21B adjacent to each other in the circumferential direction are relatively displaced, the degree of freedom of the movable form of the holders 21A and 21B is high. Therefore, the work for connecting the hose H and the work for removing the hose H are performed. Excellent workability when performing

また、継手本体１０の外周には、軸線と交差して後方に面する係止面１５と、係止面１５の外周縁から前方に向かって縮径するように延出したテーパ面１６とが形成され、ホルダ２１Ａ，２１Ｂの内周には、部分的に内径寸法を小さくした複数の小径部２６が形成され、軸線方向において、小径部２６が、テーパ面１６の後端部及び係止面１５と対応するように配置されている。この構成によれば、ホースＨが、継手本体１０の外周のうち外径寸法の大きい領域と、ホルダ２１Ａ，２１Ｂの内周のうち内径寸法の小さい領域との間で径方向に挟み付けられるので、シール性能に優れている。 Further, on the outer periphery of the joint body 10, there are a locking surface 15 that intersects the axis and faces rearward, and a tapered surface 16 that extends from the outer peripheral edge of the locking surface 15 so as to decrease in diameter toward the front. The holders 21A and 21B are formed with a plurality of small-diameter portions 26 whose inner diameters are partially reduced on the inner periphery of the holders 21A and 21B. 15 to correspond to 15. According to this configuration, the hose H is sandwiched in the radial direction between a region having a large outer diameter size in the outer periphery of the joint body 10 and a region having a small inner diameter size in the inner periphery of the holders 21A and 21B. Excellent sealing performance.

＜実施例２＞
次に、本発明を具体化した実施例２を図７を参照して説明する。本実施例２は、締付部材５０を上記実施例１とは異なる構成としたものである。上記実施例１の締付部材２０が２つのホルダ２１Ａ，２１Ｂと１つのヒンジ手段３０で連結した形態であったのに対し、本実施例２の締付部材５０は、円弧形をなす３つのホルダ５１Ａ，５１Ｂ，５１Ｃを２つのヒンジ手段３０で連結した形態である。第１ホルダ５１Ａには、支持体３３とボルト３６が取り付けられ、第３ホルダ５１には、ナット３９が取り付けられている。その他の構成については上記実施例１と同じであるため、同じ構成については、同一符号を付し、構造、作用及び効果の説明は省略する。 <Example 2>
Next, a second embodiment of the present invention will be described with reference to FIG. In the second embodiment, the fastening member 50 is configured differently from the first embodiment. Whereas the fastening member 20 of the first embodiment is connected to the two holders 21A, 21B and one hinge means 30, the fastening member 50 of the second embodiment has an arc shape 3 Two holders 51A, 51B, 51C are connected by two hinge means 30. A support body 33 and a bolt 36 are attached to the first holder 51A, and a nut 39 is attached to the third holder 51. Since the other configuration is the same as that of the first embodiment, the same reference numeral is given to the same configuration, and the description of the structure, operation, and effect is omitted.

＜他の実施例＞
本発明は上記記述及び図面によって説明した実施例に限定されるものではなく、例えば次のような実施例も本発明の技術的範囲に含まれる。
（１）上記実施例では、２つのホルダを連結する１つのヒンジ手段が、２つの連結軸を有しているが、１つのヒンジ手段に設ける連結軸の数は、１つだけでもよく、３つ以上でもよい。
（２）上記実施例では、継手本体の外周に複数の係止面と複数のテーパ面を形成したが、係止面とテーパ面の数は、１つずつだけでもよい。
（３）上記実施例では、ホルダの内周に複数の小径部を形成したが、ホルダの内周に形成する小径部の数は、１つだけでもよい。
（４）上記実施例では、継手本体の外周に係止面とテーパ面を形成したが、継手本体の外周に係止面とテーパ面を形成しない形態としてもよい。
（５）上記実施例では、ホルダの内周に小径部を形成した、ホルダの内周に小径部を形成しない形態としてもよい。
（６）上記実施例では、離脱部材によってホルダをホースの外周から離脱させるようにしたが、このような離脱部材を用いない形態としてもよい。
（７）上記実施例では、継手本体の前端縁部に定径部を形成したが、継手本体の前端縁部の外周は、前方に向かって小径となるようなテーパ状をなしていてもよい。 <Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, one hinge means for connecting two holders has two connection shafts, but the number of connection shafts provided in one hinge means may be only one. There may be more than one.
(2) In the above embodiment, a plurality of locking surfaces and a plurality of tapered surfaces are formed on the outer periphery of the joint body. However, the number of the locking surfaces and the tapered surfaces may be only one each.
(3) In the above embodiment, a plurality of small diameter portions are formed on the inner periphery of the holder, but only one small diameter portion may be formed on the inner periphery of the holder.
(4) In the above embodiment, the engaging surface and the tapered surface are formed on the outer periphery of the joint body, but the engaging surface and the tapered surface may not be formed on the outer periphery of the joint body.
(5) In the said Example, it is good also as a form which does not form a small diameter part in the inner periphery of a holder which formed the small diameter part in the inner periphery of the holder.
(6) In the above embodiment, the holder is detached from the outer periphery of the hose by the detaching member, but such a detaching member may not be used.
(7) In the above embodiment, the constant diameter portion is formed at the front end edge portion of the joint body, but the outer periphery of the front end edge portion of the joint body may be tapered so that the diameter decreases toward the front. .

Ｊ…継手装置
Ｈ…ホース
１０…継手本体
１５…係止面
１６…テーパ面
１７…定径部
２０…締付部材
２１Ａ…第１ホルダ（第１のホルダ）
２１Ｂ…第２ホルダ（第２のホルダ）
２５…雌ネジ孔
２６…小径部
３０…ヒンジ手段
３１Ａ…第１連結軸（連結軸）
３１Ｂ…第２連結軸（連結軸）
３３…支持体
３４Ａ…第１支持軸
３４Ｂ…第２支持軸
３５…貫通孔
３６…ボルト
３９…ナット
４２…離脱部材
５０…締付部材
５１Ａ…第１ホルダ
５１Ｂ…第２ホルダ
５１Ｃ…第３ホルダ J ... Joint device H ... Hose 10 ... Joint body 15 ... Locking surface 16 ... Tapered surface 17 ... Constant diameter portion 20 ... Tightening member 21A ... First holder (first holder)
21B ... 2nd holder (2nd holder)
25 ... Female screw hole 26 ... Small diameter part 30 ... Hinge means 31A ... 1st connection shaft (connection shaft)
31B ... Second connecting shaft (connecting shaft)
33 ... support 34A ... first support shaft 34B ... second support shaft 35 ... through hole 36 ... bolt 39 ... nut 42 ... detaching member 50 ... tightening member 51A ... first holder 51B ... second holder 51C ... third holder

本発明は、
筒状をなし、前方からホースが外嵌される継手本体と、
前記継手本体に外嵌された前記ホースの外周を包囲して締め付ける締付部材とを備えた継手装置であって、
前記締付部材は、
円弧状をなす複数のホルダと、
前記複数のホルダを、前記継手本体の軸線と平行な連結軸を支点として相対変位可能に連結するヒンジ手段と、
前記複数のホルダのうち第１の前記ホルダに取り付けられ、前記継手本体の軸線と平行な第１支持軸を中心として揺動可能であり、前記第１支持軸と直交する貫通孔が形成された支持体と、
前記貫通孔に回転のみを可能に貫通して支持されたボルトと、
前記複数のホルダのうち第２の前記ホルダに取り付けられ、前記継手本体の軸線と平行な第２支持軸を中心として揺動可能であり、前記ボルトが螺合可能なナットとを備えて構成され、
前記ホルダには、径方向に貫通する雌ネジ孔が形成され、
前記雌ネジ孔には、前記ホルダの外周側からねじ込まれることで前記継手本体の外周に当接する離脱部材が、取り付け可能となっているところに特徴を有する。 The present invention
A joint body that has a cylindrical shape and a hose is fitted from the front,
A joint device including a fastening member that surrounds and tightens an outer periphery of the hose fitted on the joint body;
The fastening member is
A plurality of arcuate holders;
Hinge means for connecting the plurality of holders so as to be capable of relative displacement with a connecting shaft parallel to the axis of the joint body as a fulcrum;
A through hole that is attached to the first holder among the plurality of holders, is swingable about a first support shaft parallel to the axis of the joint body, and is orthogonal to the first support shaft is formed. A support;
A bolt supported by penetrating only through the through hole, and
Wherein among the plurality of holders mounted on the second of the holder, the coupling is swingable about a second support shaft parallel to the axis of the body, the bolt is formed and a screwable nut ,
The holder is formed with a female screw hole penetrating in the radial direction,
The female screw hole is characterized in that a detachable member that comes into contact with the outer periphery of the joint body by being screwed in from the outer peripheral side of the holder can be attached .

パイプを接続する際には、継手本体にパイプを外嵌し、そのパイプの外周に複数のホルダを被せ、ボルトをナットに螺合してねじ込む。すると、このねじ込み作用により、複数のホルダが接近するように変位してパイプの外周を締め付けるので、パイプが継手本体の外周に接続される。本発明は、締付部材を構成する複数の部品が、分離しない状態で組み付けられているので、各部品が分離している場合に比べると、作業性がよい。
また、ホースを外す際には、ボルトを緩み方向に回転することにより、第１のホルダと第２のホルダが径方向及び周方向に離間させるのであるが、このとき、一方のホルダがホースから外れても、他方のホルダの内周がホースの外周に強く食い込んだままになることが懸念される。この場合は、雌ネジ孔に離脱部材をねじ込んで継手本体の外周に押し当てれば、他方のホルダをホルダの外周から離脱させることができる。 When connecting the pipe, the pipe is externally fitted to the joint body, a plurality of holders are put on the outer periphery of the pipe, and the bolt is screwed into the nut and screwed. Then, the screwing action displaces the plurality of holders so as to approach each other and tightens the outer periphery of the pipe, so that the pipe is connected to the outer periphery of the joint body. In the present invention, since a plurality of parts constituting the tightening member are assembled in a state where they are not separated, the workability is better than when each part is separated.
Also, when removing the hose, the first holder and the second holder are separated from each other in the radial direction and the circumferential direction by rotating the bolt in the loosening direction. Even if it comes off, there is a concern that the inner circumference of the other holder remains strongly biting into the outer circumference of the hose. In this case, the other holder can be detached from the outer periphery of the holder by screwing the release member into the female screw hole and pressing it against the outer periphery of the joint body.

（ｃ）本発明は、
前記継手本体の前端縁部には、外径寸法が軸線方向において一定寸法であり、前記ホースの内周に密着する肉薄の定径部が形成されていてもよい。
この構成によれば、継手本体の前端縁部において、継手本体の外周とホースの内周との間に隙間が生じ難くなる。 (C) The present invention
The front end edge of the joint body may be formed with a thin constant-diameter portion having an outer diameter that is constant in the axial direction and in close contact with the inner periphery of the hose.
According to this structure, it becomes difficult to produce a clearance gap between the outer periphery of a joint main body, and the inner periphery of a hose in the front-end edge part of a joint main body.

＜他の実施例＞
本発明は上記記述及び図面によって説明した実施例に限定されるものではなく、例えば次のような実施例も本発明の技術的範囲に含まれる。
（１）上記実施例では、２つのホルダを連結する１つのヒンジ手段が、２つの連結軸を有しているが、１つのヒンジ手段に設ける連結軸の数は、１つだけでもよく、３つ以上でもよい。
（２）上記実施例では、継手本体の外周に複数の係止面と複数のテーパ面を形成したが、係止面とテーパ面の数は、１つずつだけでもよい。
（３）上記実施例では、ホルダの内周に複数の小径部を形成したが、ホルダの内周に形成する小径部の数は、１つだけでもよい。
（４）上記実施例では、継手本体の外周に係止面とテーパ面を形成したが、継手本体の外周に係止面とテーパ面を形成しない形態としてもよい。
（５）上記実施例では、ホルダの内周に小径部を形成した、ホルダの内周に小径部を形成しない形態としてもよい。
（６）上記実施例では、継手本体の前端縁部に定径部を形成したが、継手本体の前端縁部の外周は、前方に向かって小径となるようなテーパ状をなしていてもよい。
＜参考例＞
（１）上記実施例では、離脱部材によってホルダをホースの外周から離脱させるようにしたが、このような離脱部材を用いない形態も考えられる。 <Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, one hinge means for connecting two holders has two connection shafts, but the number of connection shafts provided in one hinge means may be only one. There may be more than one.
(2) In the above embodiment, a plurality of locking surfaces and a plurality of tapered surfaces are formed on the outer periphery of the joint body. However, the number of the locking surfaces and the tapered surfaces may be only one each.
(3) In the above embodiment, a plurality of small diameter portions are formed on the inner periphery of the holder, but only one small diameter portion may be formed on the inner periphery of the holder.
(4) In the above embodiment, the engaging surface and the tapered surface are formed on the outer periphery of the joint body, but the engaging surface and the tapered surface may not be formed on the outer periphery of the joint body.
(5) In the said Example, it is good also as a form which does not form a small diameter part in the inner periphery of a holder which formed the small diameter part in the inner periphery of the holder.
(6) In the above embodiment, the constant diameter portion is formed at the front end edge portion of the joint body. However, the outer periphery of the front end edge portion of the joint body may be tapered so that the diameter decreases toward the front. .
<Reference example>
(1) In the above embodiment, the holder is detached from the outer periphery of the hose by the detaching member. However, a form in which such a detaching member is not used is also conceivable.

Claims

A joint body that has a cylindrical shape and a hose is fitted from the front,
A joint device including a fastening member that surrounds and tightens an outer periphery of the hose fitted on the joint body;
The fastening member is
A plurality of arcuate holders;
Hinge means for connecting the plurality of holders so as to be capable of relative displacement with a connecting shaft parallel to the axis of the joint body as a fulcrum;
A through hole that is attached to the first holder among the plurality of holders, is swingable about a first support shaft parallel to the axis of the joint body, and is orthogonal to the first support shaft is formed. A support;
A bolt supported by penetrating only through the through hole, and
The nut is attached to the second holder among the plurality of holders, and is swingable about a second support shaft parallel to the axis of the joint body, and includes a nut to which the bolt can be screwed. A coupling device characterized by that.

The joint device according to claim 1, wherein the hinge means includes a plurality of connecting shafts provided on both of the holders adjacent in the circumferential direction.

On the outer periphery of the joint body, a locking surface that intersects the axis and faces rearward, and a tapered surface that extends so as to reduce the diameter from the outer peripheral edge of the locking surface toward the front, are formed.
On the inner periphery of the holder, a small-diameter portion with a partially reduced inner diameter is formed,
3. The joint device according to claim 1, wherein the small-diameter portion is arranged so as to correspond to a rear end portion of the tapered surface and the locking surface in the axial direction.

The holder is formed with a female screw hole penetrating in the radial direction,
The detachable member which contacts the outer periphery of the joint main body by being screwed into the female screw hole from the outer peripheral side of the holder can be attached. The joint device according to item 1.

2. A thin constant-diameter portion that has a constant outer diameter in the axial direction and is in close contact with the inner periphery of the hose is formed at the front end edge of the joint body. Item 5. The joint device according to any one of Items 4 to 4.