JP4363585B2

JP4363585B2 - Wheel

Info

Publication number: JP4363585B2
Application number: JP2000007043A
Authority: JP
Inventors: 栄治大月; 敏雄鈴木
Original assignee: Cosmo Koki Co Ltd
Current assignee: Cosmo Koki Co Ltd
Priority date: 2000-01-14
Filing date: 2000-01-14
Publication date: 2009-11-11
Anticipated expiration: 2020-01-14
Also published as: JP2001200965A

Description

【０００１】
【発明の属する技術分野】
本発明は、水道管やガス管等の一方の流体管の端部外周に外嵌し、対向する他方の流体管に取り付けて流体管同士を接続するのに用いられる押輪に関する。
【０００２】
【従来の技術】
従来、対向する流体管を結合するのに用いられる押輪としては、例えば、図１０、図１１に示すものが知られている。
【０００３】
これは、流体管Ｐの端部外周に円環状押輪本体Ａを外嵌し、押輪本体Ａと対向する流体管Ｐ’のフランジＤをボルトＥおよびナットＦで結合して、この押輪本体Ａに設けられたボルトＢの押圧により弓形爪Ｃを流体管Ｐの外周に係着するものである。
【０００４】
押輪本体Ａおよび弓形爪Ｃで構成された押輪を搬送する際、弓形爪Ｃが運搬中等に振動等によりこの押輪本体Ａから抜け落ちてしまうことがないように、押輪本体Ａの隔壁Ｇと弓形爪Ｃの端部との間に爪固定ゴムＨが押し潰されるように押し込まれている。
【０００５】
この押輪を用いて接合された流体管Ｐ、Ｐ’が抜け出す方向に相対移動した場合には、図１０に示すように押輪本体Ａの右側に傾斜していた弓形爪ＣがボルトＢとの接点を支点として時計回りに回転することにより弓形爪Ｃの先端が流体管Ｐの外周に食い込み、流体管Ｐ、Ｐ’の離脱が防止されている
【０００６】
【発明が解決しようとする課題】
しかしながら、上記従来の技術にあっては、流体管Ｐ、Ｐ’を接合するためにボルトＢを押し込んだ際に、一部の弓形爪Ｃが押輪本体Ａの左側に傾斜してしまうことがあり、流体管Ｐ、Ｐ’が抜け出す方向に相対移動した場合にボルトＢとの接点を支点として時計回りに回転することにより弓形爪Ｃの先端が流体管Ｐの外周より外れてしまい離脱防止性能が低下してしまうという問題があった。
【０００７】
本発明は、上記問題に着目してなされたもので、流体管の端部外周に外嵌され、対向する流体管を結合するのに用いられる押輪において、弓形爪の逆傾斜を防止することを課題とする。
【０００８】
【課題を解決するための手段】
上記課題を解決するために、本発明の押輪は、一方の流体管の端部外周に外嵌され、他方の流体管の端部に前記一方の流体管を接続するための押輪であって、
隔壁により複数に分割されている内周溝が径方向内周に形成された円環状押輪本体と、押輪本体の環中心方向への移動と傾動が可能な状態で前記内周溝内に嵌入収納された弓形爪と、円筒の一方の先端が絞られて尖がる砲弾状に形成され、前記内周溝の側壁と弓形爪の側面との間に弾性的に装着された支持部材と、で構成されており、
前記弓形爪の側面には取付凹部が形成され、該取付凹部に対向し、かつ前記流体管に外嵌される側の前記内周溝の側壁両端部には支持凹部が形成され、該支持凹部の円環状押輪本体の中心方向端部に係止突部が形成されており、前記取付凹部と支持凹部で形成される空間に前記支持部材を押し込み、該支持部材の下部を前記係止突部に係止させることを特徴としている。
本発明によれば、弓形爪は円環状押輪本体の内周溝に環中心方向への移動と傾動が可能な状態で収納され、しかも、内周溝の側壁と弓形爪の側面との間隙に支持部材が弾性的に装着されているため、弓形爪が内周溝内で所定の傾斜姿勢で設置され、ボルトを押し込んだ際に弓形爪が不適切な方向に傾斜することがない。
【０００９】
また、支持部材が嵌入される取付凹部が弓形爪の側面に形成されているので、常に一定の位置に支持部材を設置するすることができ、安定した性能を発揮することができる。
【００１０】
また、取付凹部に対向し、かつ流体管に外嵌される側の内周溝の側壁両端部には支持凹部が形成され、該支持凹部の円環状押輪本体の中心方向端部に係止突部が形成されているので、支持凹部に設置された支持部材が係止突部に係止され内周溝からの脱落が防止され、弓形爪を確実に支持することができる。
【００１１】
さらに、支持部材が先端が尖っている砲弾状に形成されているので、内周溝と弓形爪との間に挿入する作業が容易となる。
【００１２】
【発明の実施の形態】
以下、本発明の実施例を図面に基づいて説明する。
【００１３】
本発明の押輪１は、図１に示されるように、流体管の端部外周に取付けられ、対向する流体管を結合するのに用いられるものであり、押輪本体２と押ボルト３、弓形爪４（図５参照）とで構成される。
【００１４】
押輪本体２は円環状に形成されており、この押輪本体２内には周方向に所定間隔おいて、半径方向内方に複数の隔壁５が突設しており、隣り合う隔壁５，５間には弓形爪４を収納するための内周溝６が形成されている。
【００１５】
また、押輪本体２には弓形爪４が内周溝６内に収納された際、弓形爪４を押圧して流体管に係着するための押ボルト３が周方向に複数個設けられている。なお、７は流体管に取付けられた押輪１を対向する流体管のフランジに結合するために用いられるボルトのボルト挿通穴である。
【００１６】
流体管に外嵌された側（図２の左側）の各内周溝６の側壁１１両端部には、支持部材１０が収容される支持凹部８が掘り込まれており、支持凹部８の押輪本体２中心方向には係止突部９が形成されている。
【００１７】
弓形爪４は、図５に示されるように、流体管の外径に合せた円弧状の爪部４ｃが先端に設けられ、側面４ｂの両端部には支持部材１０が挿し込まれる取付凹部４ａ、４ａが形成されている。
【００１８】
支持部材１０は、円筒形に形成された変形可能の弾性体で、合成ゴムや軟質のプラスチック等で製作され、一方の端部は絞り込まれて尖っており、全体として砲弾状をしている(図６参照)。
【００１９】
このように構成された実施例の押輪１にあっては、まず、弓形爪４の爪部４ｃを押輪本体２の中心方向にむけて、内周溝６に挿入し、弓形爪４の側面４ｂに設けられた取付凹部４ａと、内周溝６の側壁１１に設けられた支持凹部８とにより形成された空間に支持部材１０を押し込み、係止突部９に支持部材１０の下部を係合させる。
【００２０】
したがって、支持部材１０は、係止突部９により押輪本体２から抜け落ちるのを防止しながら、弓形爪４の取付凹部４ａ内に入り込みその弾性により内周溝６の側壁に弓形爪４を押し付ける作用をするため、弓形爪４が押輪本体２から抜け落ちることがない。
【００２１】
また、押輪１を外嵌した流体管側の内周溝の側壁側と、弓形爪４の側面とに支持部材１０が挿入されて図８に示すように弓形爪４が右側に傾いて設置されるので、押ボルト３を螺入したときに弓形爪４が逆に傾くことが防止される。
【００２２】
流体管に弓形爪４を係着させるには、押ボルト３の螺入により弓形爪４を押圧し、弓形爪４を流体管に食込ませることにより、押輪１を流体管に固定させる(図９参照)。なお、押輪１をボルト挿通穴７を介してボルトを挿通することにより、流体管とそれに対向する流体管のフランジとを連結した後、前記弓形爪４を流体管に食い込ませる。
【００２３】
以上、本発明の実施例を図面により説明してきたが、本発明の具体的な構成はこれに限定されるものではない。
【００２４】
例えば、実施例では、支持部材１０は図６に示されるように、先細りの円柱形であるが、厚肉の板状体であってもよく、弾性で弓形爪４を支持できるものであればこれに限定されるものではない。
【００２５】
【発明の効果】
本発明によれば、弓形爪は円環状押輪本体の内周溝に環中心方向への移動と傾動が可能な状態で収納され、しかも、内周溝の側壁と弓形爪の側面との間隙に支持部材が弾性的に装着されているため、弓形爪が内周溝内で所定の傾斜姿勢で設置され、ボルトを押し込んだ際に弓形爪が不適切な方向に傾斜することがない。
【００２６】
また、支持部材が嵌入される取付凹部が弓形爪の側面に形成されているので、常に一定の位置に支持部材を設置するすることができ、安定した性能を発揮することができる。
【００２７】
また、取付凹部に対向し、かつ流体管に外嵌される側の内周溝の側壁両端部には支持凹部が形成され、該支持凹部の円環状押輪本体の中心方向端部に係止突部が形成されているので、支持凹部に設置された支持部材が係止突部に係止され内周溝からの脱落が防止され、弓形爪を確実に支持することができる。
【００２８】
さらに、支持部材が先端が尖っている砲弾状に形成されているので、内周溝と弓形爪との間に挿入する作業が容易となる。
【図面の簡単な説明】
【図１】本発明の実施例の押輪における押輪本体の部分切欠き平面図である。
【図２】同じく、１−１断面図である。
【図３】同じく、２−２断面図である。
【図４】同じく、３−３断面図である。
【図５】本発明の実施例における弓形爪の（ａ）は平面図、（ｂ）は正面図、（ｃ）は側面図ある。
【図６】本発明の実施例における支持部材の斜視図である。
【図７】本発明の実施例における押輪本体に弓形爪を装着した状態の断面図である。
【図８】同じく、４−４断面図である。
【図９】同じく、５−５断面図である。
【図１０】従来の押輪を流体管に取り付けた状態を示す要部断面図である。
【図１１】同じく、一部切欠き正面図である。
【符号の説明】
１押輪
２押輪本体
３押ボルト
４弓形爪
４ａ取付凹部
４ｂ側面
４ｃ爪部
５隔壁
６内周溝
７ボルト挿通穴
８支持凹部
９係止突部
１０支持部材
１１側壁[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a press ring that is externally fitted to the outer periphery of one end of a fluid pipe such as a water pipe or a gas pipe, and is attached to the opposite fluid pipe to connect the fluid pipes.
[0002]
[Prior art]
Conventionally, as shown in FIG. 10 and FIG. 11, for example, as a push wheel used for coupling opposing fluid pipes, are known.
[0003]
This is because an annular push ring body A is fitted on the outer periphery of the end of the fluid pipe P, and a flange D of the fluid pipe P ′ facing the push ring body A is coupled by a bolt E and a nut F. The arcuate claw C is engaged with the outer periphery of the fluid pipe P by pressing the provided bolt B.
[0004]
When transporting the press ring composed of the press ring main body A and the arcuate claw C, the partition wall G of the press ring main body A and the arcuate claw are prevented so that the arcuate claw C does not fall out of the press ring main body A due to vibration or the like during transportation. The claw-fixing rubber H is pushed between the end portions of C so as to be crushed.
[0005]
When the fluid pipes P and P ′ joined by using the pusher wheel are moved relative to each other in the direction in which the pusher wheel is pulled out, the arcuate claw C inclined to the right side of the pusher wheel body A as shown in FIG. The tip of the arcuate claw C bites into the outer periphery of the fluid pipe P by rotating it clockwise around the fulcrum, thereby preventing the fluid pipes P and P ′ from being detached.
[Problems to be solved by the invention]
However, in the above-described conventional technology, when the bolt B is pushed in to join the fluid pipes P and P ′, some of the arcuate claws C may be inclined to the left side of the presser wheel body A. When the fluid pipes P and P ′ move relative to each other in the direction in which they come out, the tip of the arcuate claw C is detached from the outer circumference of the fluid pipe P by rotating clockwise with the contact point with the bolt B as a fulcrum. There was a problem of being lowered.
[0007]
The present invention has been made paying attention to the above-mentioned problem, and is intended to prevent reverse inclination of an arcuate claw in a press ring that is externally fitted to the outer periphery of an end portion of a fluid pipe and is used to connect opposing fluid pipes. Let it be an issue.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, a push ring of the present invention is a push ring that is fitted on the outer periphery of an end of one fluid pipe and connects the one fluid pipe to the end of the other fluid pipe,
An annular push ring body in which an inner circumferential groove divided into a plurality of partitions by a partition wall is formed on the inner circumference in the radial direction, and the inner circumferential groove is fitted and stored in a state in which the push ring body can be moved and tilted toward the center of the ring. And a support member elastically mounted between the side wall of the inner circumferential groove and the side surface of the arcuate claw, which is formed into a bullet shape in which one tip of the cylinder is squeezed and sharpened. Configured ,
A mounting recess is formed on a side surface of the arcuate claw, and a support recess is formed at both end portions of the side wall of the inner circumferential groove facing the mounting recess and fitted on the fluid pipe. A locking projection is formed at the center end of the annular push ring body, and the support member is pushed into a space formed by the mounting recess and the support recess, and the lower portion of the support member is inserted into the locking projection. It is characterized by being locked to .
According to the present invention, the arcuate claw is accommodated in the inner circumferential groove of the annular push ring body so as to be capable of moving and tilting toward the center of the ring, and in the gap between the side wall of the inner circumferential groove and the side surface of the arcuate claw. Since the support member is elastically mounted, the arcuate claw is installed in a predetermined inclination posture in the inner circumferential groove, and the arcuate claw is not inclined in an inappropriate direction when the bolt is pushed.
[0009]
In addition, since the mounting recess into which the support member is inserted is formed on the side surface of the arcuate claw , the support member can always be installed at a fixed position, and stable performance can be exhibited.
[0010]
Support recesses are formed at both ends of the side wall of the inner circumferential groove facing the mounting recess and fitted to the fluid pipe, and a locking projection is formed at the center end of the annular press ring body of the support recess. Since the portion is formed, the support member installed in the support recess is locked to the locking protrusion, and is prevented from falling off from the inner circumferential groove, so that the arcuate claw can be reliably supported.
[0011]
Furthermore, since the support member is formed in a cannonball shape with a sharp tip, the work of inserting between the inner peripheral groove and the arcuate claw becomes easy.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0013]
As shown in FIG. 1, a push ring 1 of the present invention is attached to the outer periphery of an end of a fluid pipe, and is used to connect opposing fluid pipes. A push ring body 2, a push bolt 3, an arcuate claw 4 (see FIG. 5).
[0014]
The press ring main body 2 is formed in an annular shape, and a plurality of partition walls 5 project from the press ring main body 2 in the radial direction at predetermined intervals in the circumferential direction. Is formed with an inner circumferential groove 6 for accommodating the arcuate claw 4.
[0015]
The push ring body 2 is provided with a plurality of push bolts 3 in the circumferential direction for pressing the arcuate claw 4 and engaging it with the fluid pipe when the arcuate claw 4 is housed in the inner circumferential groove 6. . Reference numeral 7 denotes a bolt insertion hole for a bolt used for coupling the pusher wheel 1 attached to the fluid pipe to the flange of the opposing fluid pipe.
[0016]
A support recess 8 in which the support member 10 is accommodated is dug into both ends of the side wall 11 of each inner circumferential groove 6 on the side (the left side in FIG. 2) that is externally fitted to the fluid pipe. A locking projection 9 is formed in the central direction of the main body 2.
[0017]
As shown in FIG. 5, the arcuate claw 4 is provided with an arcuate claw portion 4c matching the outer diameter of the fluid pipe at the tip, and mounting recesses 4a into which the support member 10 is inserted at both ends of the side surface 4b. 4a is formed.
[0018]
The support member 10 is a deformable elastic body formed in a cylindrical shape, and is made of synthetic rubber, soft plastic, or the like. One end portion is narrowed and pointed, and has a bullet-like shape as a whole ( (See FIG. 6).
[0019]
In the push ring 1 of the embodiment configured as described above, first, the claw portion 4c of the arcuate claw 4 is directed toward the center of the press ring body 2 and is inserted into the inner circumferential groove 6, and the side surface 4b of the arcuate claw 4 is then inserted. The support member 10 is pushed into the space formed by the mounting recess 4 a provided in the inner wall and the support recess 8 provided in the side wall 11 of the inner circumferential groove 6, and the lower portion of the support member 10 is engaged with the locking projection 9. Let
[0020]
Accordingly, the support member 10 enters the mounting recess 4a of the arcuate claw 4 while preventing the locking projection 9 from falling off from the push wheel body 2, and presses the arcuate claw 4 against the side wall of the inner circumferential groove 6 by its elasticity. Therefore, the arcuate claw 4 does not fall out of the press ring body 2.
[0021]
Further, the support member 10 is inserted into the side wall side of the inner circumferential groove on the fluid pipe side on which the press ring 1 is fitted and the side surface of the arcuate claw 4 so that the arcuate claw 4 is inclined to the right as shown in FIG. Therefore, when the push bolt 3 is screwed in, the arcuate claw 4 is prevented from tilting in the reverse direction.
[0022]
In order to engage the arcuate claw 4 with the fluid pipe, the presser wheel 3 is pressed by screwing the push bolt 3 and the arcuate claw 4 is bitten into the fluid pipe, thereby fixing the press ring 1 to the fluid pipe (see FIG. 9). In addition, by inserting the bolt through the push wheel 1 through the bolt insertion hole 7, the fluid pipe and the flange of the fluid pipe opposed thereto are connected, and then the arcuate claw 4 is bitten into the fluid pipe.
[0023]
While the embodiments of the present invention have been described with reference to the drawings, the specific configuration of the present invention is not limited to this.
[0024]
For example, in the embodiment, the support member 10 is a tapered columnar shape as shown in FIG. 6, but it may be a thick plate-like body as long as it can support the arcuate claw 4 elastically. It is not limited to this.
[0025]
【The invention's effect】
According to the present invention, the arcuate claw is accommodated in the inner circumferential groove of the annular push ring body so as to be capable of moving and tilting toward the center of the ring, and in the gap between the side wall of the inner circumferential groove and the side surface of the arcuate claw. Since the support member is elastically mounted, the arcuate claw is installed in a predetermined inclination posture in the inner circumferential groove, and the arcuate claw is not inclined in an inappropriate direction when the bolt is pushed.
[0026]
In addition, since the mounting recess into which the support member is inserted is formed on the side surface of the arcuate claw , the support member can always be installed at a fixed position, and stable performance can be exhibited.
[0027]
Support recesses are formed at both ends of the side wall of the inner circumferential groove facing the mounting recess and fitted to the fluid pipe, and a locking projection is formed at the center end of the annular press ring body of the support recess. Since the portion is formed, the support member installed in the support recess is locked to the locking protrusion, and is prevented from falling off from the inner circumferential groove, so that the arcuate claw can be reliably supported.
[0028]
Furthermore, since the support member is formed in a cannonball shape with a sharp tip, the work of inserting between the inner peripheral groove and the arcuate claw becomes easy.
[Brief description of the drawings]
FIG. 1 is a partially cutaway plan view of a pusher wheel body in a pusher according to an embodiment of the present invention.
FIG. 2 is a sectional view taken along the line 1-1.
FIG. 3 is also a 2-2 cross-sectional view.
FIG. 4 is a cross-sectional view taken along the line 3-3.
5A is a plan view, FIG. 5B is a front view, and FIG. 5C is a side view of an arcuate claw in an embodiment of the present invention.
FIG. 6 is a perspective view of a support member in an embodiment of the present invention.
FIG. 7 is a cross-sectional view showing a state in which an arcuate claw is attached to the presser wheel body in the embodiment of the present invention.
FIG. 8 is a cross-sectional view taken along the line 4-4.
FIG. 9 is a sectional view taken along the line 5-5.
FIG. 10 is a cross-sectional view of a principal part showing a state in which a conventional push ring is attached to a fluid pipe.
FIG. 11 is also a partially cutaway front view.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Push ring 2 Push ring main body 3 Push bolt 4 Bow-shaped nail | claw 4a Mounting recessed part 4b Side surface 4c Claw part 5 Bulkhead 6 Inner peripheral groove 7 Bolt insertion hole 8 Support recessed part 9 Locking protrusion 10 Support member 11 Side wall

Claims

A push ring that is fitted around the outer periphery of the end of one fluid pipe and connects the one fluid pipe to the end of the other fluid pipe,
An annular push ring body in which an inner circumferential groove divided into a plurality of partitions by a partition wall is formed on the inner circumference in the radial direction, and the inner circumferential groove is fitted and stored in a state in which the push ring body can be moved and tilted toward the center of the ring. And a support member elastically mounted between the side wall of the inner circumferential groove and the side surface of the arcuate claw, which is formed into a bullet shape in which one tip of the cylinder is squeezed and sharpened. Configured ,
A mounting recess is formed on a side surface of the arcuate claw, and a support recess is formed at both end portions of the side wall of the inner circumferential groove facing the mounting recess and fitted on the fluid pipe. A locking projection is formed at the center end of the annular push ring body, and the support member is pushed into a space formed by the mounting recess and the support recess, and the lower portion of the support member is inserted into the locking projection. A push ring characterized by being locked to the ring.