JP2017035763A - Crimp tool for crimping type pipe joint - Google Patents

Crimp tool for crimping type pipe joint Download PDF

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JP2017035763A
JP2017035763A JP2015159181A JP2015159181A JP2017035763A JP 2017035763 A JP2017035763 A JP 2017035763A JP 2015159181 A JP2015159181 A JP 2015159181A JP 2015159181 A JP2015159181 A JP 2015159181A JP 2017035763 A JP2017035763 A JP 2017035763A
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slide block
pipe
joint
support
crimping
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JP6600191B2 (en
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苅部 郁生
Ikuo Karibe
郁生 苅部
基信 北岡
Motonobu Kitaoka
基信 北岡
憲成 箕輪
Norimasa Minowa
憲成 箕輪
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Sanki Engineering Co Ltd
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Sanki Engineering Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a crimp tool for a crimping type pipe joint capable of eliminating a work for exchanging a first support tool and a second support tool to be suitable to a pipe diameter for the crimp tool so that a work efficiency can be enhanced, as well as significantly reducing a burden of an operator during handling of the first and second support tools.SOLUTION: A crimp tool for a crimping type pipe joint comprises: a first support tool 8, which includes a first slide block mechanism 10 for freely supporting a plurality of pipes 1 by holding the pipes in such a manner as to allow the pipes 1 to have different diameters and to approach to or to separate from each other in a radial direction; and a second support tool 9, which includes a second slide block mechanism 11 for freely supporting a plurality of pipes 1 by holding the pipes in such a manner as to allow the pipes 1 to have different diameters and to approach to or to separate from each other in a radial direction.SELECTED DRAWING: Figure 1

Description

本発明は、金属製の配管同士を連結するかしめ継手である圧着式管継手を圧着するための圧着式管継手用圧着工具に関するものである。   The present invention relates to a crimping tool for a crimping-type pipe joint for crimping a crimping-type pipe joint that is a caulking joint that connects metal pipes.

配管同士の連結に用いられる管継手には、ねじ込み式のものや、溶接式のもの、形状記憶合金を利用したもの等、種々の形式があり、用途に応じて使い分けられている。   There are various types of pipe joints used for connecting pipes, such as a screw-in type, a welded type, a type using a shape memory alloy, and the like.

空調設備において、パッケージ型空調機等、冷凍サイクルを構成する蒸発器や凝縮器を空調空気との熱交換器に利用する場合は、冷凍サイクル構成機器同士を配管で連結して該配管内部にフルオロカーボン系冷媒等の冷媒が循環流通するサイクルを形成し、該サイクル内において冷媒を気液間で相転移させ、熱交換を行う。こうした空調設備に用いられる配管(冷媒配管)には、完全な気密性が要求されることは勿論、耐腐食性、耐圧性、加工の容易性といった化学的、物理的性質、冷媒の圧力損失を可能な限り小さくし得る機械的形状等、種々の特性が求められる。こういった特性を満足し得る素材として、従来、主に銅(特に、純度の高いリン脱酸銅)が用いられており、銅管と管継手(或いは銅管同士)の接続は、ろう材を溶かして金属同士を接合するろう付け(ろう接)によって行われることが一般的である。しかし、近年では銅管の原料である銅の価格の高騰を受け、銅の代わりにより安価な素材であるアルミを採用することが検討されつつある。又、ろう接は高度な技術を要する職人的な作業であり、熟練した職人による施工人件費が高くつくことから、より簡易な接続方法を用いて接続の作業を省力化することもあわせて要望されている。   When using an evaporator or condenser that constitutes a refrigeration cycle, such as a packaged air conditioner, as a heat exchanger for conditioned air in an air conditioning facility, the refrigeration cycle components are connected to each other by piping and fluorocarbon is contained inside the piping. A cycle in which a refrigerant such as a system refrigerant is circulated and circulated is formed, and in the cycle, the refrigerant undergoes a phase transition between gas and liquid to perform heat exchange. Pipes (refrigerant pipes) used for such air conditioning equipment are required to have perfect airtightness, as well as chemical and physical properties such as corrosion resistance, pressure resistance and ease of processing, and refrigerant pressure loss. Various characteristics such as a mechanical shape that can be made as small as possible are required. Conventionally, copper (especially high-purity phosphorous deoxidized copper) has been mainly used as a material that can satisfy these characteristics, and the connection between copper pipes and pipe joints (or copper pipes) is brazing. Generally, this is performed by brazing (metal brazing) in which metal is melted to join metals together. However, in recent years, in response to soaring price of copper, which is a raw material for copper pipes, it has been studied to adopt aluminum, which is a cheaper material, instead of copper. In addition, brazing is a craftsmanship that requires advanced technology, and the labor cost of construction by skilled craftsmen is high. Therefore, it is also requested that labor should be saved by using a simpler connection method. Has been.

ここで、銅管をろう接する場合には、銅の融点が1085℃と比較的高く、溶加材として600℃〜800℃前後の融点を有するりん銅ろうや銀ろうを用いることが接合部の隙間への浸透性や欠陥であるボイドの発生防止や耐食性のために最適なのだが、ろう接の際、管継手と管との間に溶加材を十分に浸透させるためには、溶加材の温度を融点よりある程度高めに保つ必要があるところ、上記の通り、りん銅ろうや銀ろうの融点は銅の融点に対して十分に低い。このため、ろう接温度を760℃〜850℃と、融点以上に高く保っても、母材である銅の溶融が起きる心配はない。一方、配管の材料にアルミを用いる場合には、母材であるアルミの融点が660℃と低く、これに対し溶加材として用いるアルミろうの融点は590℃前後と、両者の融点が近い。このため、溶融したアルミろうを浸透させるべく温度を上げると母材も一緒に溶融しかねず、管に孔が開かないようにろう接することが難しい。このような問題は、接続にろう接を必要としない乾式の圧着式管継手を用いることで回避できる。   Here, when soldering a copper tube, the melting point of copper is relatively high at 1085 ° C., and it is preferable to use a phosphor copper solder or a silver solder having a melting point of about 600 ° C. to 800 ° C. as a filler material. It is ideal for the penetration of gaps and the prevention of voids, which are defects, and corrosion resistance, but in order to allow the filler material to sufficiently penetrate between the pipe joint and the pipe during brazing, the filler material However, as described above, the melting point of the phosphor copper solder and the silver solder is sufficiently lower than the melting point of copper. For this reason, even if the brazing temperature is kept at 760 ° C. to 850 ° C., which is higher than the melting point, there is no concern that the base material copper melts. On the other hand, when aluminum is used as the material of the piping, the melting point of aluminum as a base material is as low as 660 ° C., whereas the melting point of aluminum brazing used as a filler material is around 590 ° C., which is close to both. For this reason, if the temperature is raised so as to penetrate the molten aluminum brazing, the base material may be melted together, and it is difficult to braze so that the hole does not open in the tube. Such a problem can be avoided by using a dry-type crimp fitting that does not require brazing.

空調設備として、冷媒配管ではない、例えば水(冷水)を熱媒として利用するタイプの空調設備においては、金属に圧力を加えて変形させる(かしめる)ことにより配管に圧着する、かしめ継手とも呼ばれるタイプの圧着式管継手装置を管継手に用いることができ、水を搬送する水配管の連結等に一部利用されている。   In air conditioning equipment that is not a refrigerant pipe, for example, a type that uses water (cold water) as a heat medium, the air conditioning equipment is also called a caulking joint that crimps the pipe by applying pressure to the metal to deform (caulking). A type of crimp-type pipe joint device can be used for a pipe joint, and is partially used for connection of a water pipe for carrying water.

そのような水配管と比べると、上記した冷媒配管に対して継手を利用しようとする場合には、継手により高い性能が要求される。即ち、5〜10MPaという高い圧力下で完全な気密性を実現することが求められるため、管と管継手の間をより強い力(かしめ力)で接続する必要がある。こうした要求に応え得る圧着式管継手装置として、管を裏打ちするインサート部材を管内部に挿入し、該インサート部材により管を内側から支持して強いかしめ力に対応するタイプのかしめ継手がある。   Compared to such a water pipe, when a joint is to be used for the above-described refrigerant pipe, a higher performance is required for the joint. That is, since it is required to realize complete hermeticity under a high pressure of 5 to 10 MPa, it is necessary to connect the pipe and the pipe joint with a stronger force (caulking force). As a crimping type pipe joint device that can meet such demands, there is a type of caulking joint that inserts an insert member for lining the pipe into the pipe and supports the pipe from the inside by the insert member to cope with a strong caulking force.

前記圧着式管継手装置(かしめ継手)は、図5に示される如く、管1の接合端部内面に挿入されるインサート部材2と、前記管1の接合端部外面に嵌装されるジョイント部材3と、該ジョイント部材3の端部外面に嵌着されるナット4とを備えている。   As shown in FIG. 5, the crimp type pipe joint device (caulking joint) includes an insert member 2 inserted into the inner surface of the joint end of the pipe 1 and a joint member fitted into the outer surface of the joint end of the pipe 1. 3 and a nut 4 fitted to the outer surface of the end portion of the joint member 3.

前記インサート部材2は、均等な円断面を有する略円筒形の本体部と、該本体部の外周の一端部に張り出した鍔部2aを備えてなる金属製の部材であり、管1の内径に本体部の外径が略一致するサイズのものを用いる。インサート部材2の素材としては、例えば高強度鋼が用いられる。   The insert member 2 is a metal member including a substantially cylindrical main body portion having a uniform circular cross section and a flange portion 2a projecting from one end portion of the outer periphery of the main body portion. The main body part has a size that substantially matches the outer diameter. As a material of the insert member 2, for example, high strength steel is used.

前記ジョイント部材3は、両端部にそれぞれ管1の接合端部が挿入されるスリーブ3aと、該スリーブ3aの軸線方向中央部外周面に、その軸線方向へ所要間隔をあけて突設されるフランジ形状の二つの支点部3bと、該支点部3b間に前記スリーブ3aの外径より小径となるよう形成される環状溝部3cとを備えている。即ち、前記ジョイント部材3は、両端部にそれぞれ管1の接合端部を挿入して自身を介して連通する二つの管1の間を連結する環状溝部3cの両端に、二つのそれぞれの管1の接合端部を挿入して接続するためのスリーブ3aを、該スリーブ3aの基部側で前記環状溝部3c側方外側に張り出した支点部3bとを備えてなる金属製の部材である。スリーブ3aは、管1に外嵌する略円筒形をしており、前記環状溝部3cの内面のそれぞれの端部側には、該スリーブ3aの内周に張り出すように段差部3i(図8参照)が備えられている。前記スリーブ3aの外周面は、基部から所定距離だけ端部に向かったところを起点に、基部から端部に向かって外径が漸次小さくなるテーパ形状をなしている。このスリーブ3aと、支点部3b、環状溝部3cとで、ジョイント部材3を形成している。図5には、環状溝部3cの一端に、基部外面に支点部3bを突出させるスリーブ3aを備え、環状溝部3cの他端に、基部外面に支点部3bを突出させるスリーブ3aを備えた直管ニップル形状のジョイント部材3を例示している。ジョイント部材3の素材としては、特にそのスリーブ3a部分は、例えば、ある程度の展性を有する鋼鉄が用いられる。尚、前記ジョイント部材3としては、同一径の管1の接合に用いられるものに限らず、異径の管1の接合に用いられるレジューサタイプのもの、T字型やY字型の管体部に三つの管接続部を備えたもの、L字型の管体部に二つの管接続部を備えたもの、二つの管接続部をフレキシブル管の管体部で繋いだもの等、各種の形状のものを使用することができる。   The joint member 3 includes a sleeve 3a into which both ends of the joint 1 of the tube 1 are inserted, and a flange projecting from the outer peripheral surface of the central portion in the axial direction of the sleeve 3a at a predetermined interval in the axial direction. Two fulcrum parts 3b having a shape and an annular groove part 3c formed between the fulcrum parts 3b so as to have a smaller diameter than the outer diameter of the sleeve 3a are provided. That is, the joint member 3 has two pipes 1 at both ends of an annular groove 3c that connects between two pipes 1 that are connected to each other by inserting joint ends of the pipes 1 at both ends. This is a metal member comprising a sleeve 3a for inserting and connecting a joint end portion thereof and a fulcrum portion 3b projecting outward from the annular groove portion 3c on the base side of the sleeve 3a. The sleeve 3a has a substantially cylindrical shape that is externally fitted to the tube 1, and a stepped portion 3i (see FIG. 8) is formed on each inner end of the annular groove 3c so as to project to the inner periphery of the sleeve 3a. See). The outer peripheral surface of the sleeve 3a has a tapered shape in which the outer diameter gradually decreases from the base portion toward the end portion, starting from the base portion toward the end portion by a predetermined distance. The sleeve 3a, the fulcrum portion 3b, and the annular groove portion 3c form a joint member 3. 5 shows, on one end of the annular groove 3c, comprises a sleeve 3a projecting the fulcrum portion 3b to the base outer surface, the other end of the annular groove portion 3c, including a sleeve 3a projecting the fulcrum portion 3b to the base outer surface straight pipe A nipple-shaped joint member 3 is illustrated. As the material of the joint member 3, for example, steel having a certain degree of malleability is used for the sleeve 3a portion. The joint member 3 is not limited to the one used for joining the pipes 1 having the same diameter, but is a reducer type used for joining the pipes 1 having different diameters, or a T-shaped or Y-shaped tubular body part. Various shapes such as one with three pipe connection parts, one with two pipe connection parts in an L-shaped pipe part, two pipe connection parts connected by a flexible pipe pipe part, etc. Can be used.

ナット4は、略円筒形の金属部材であり、その内周面は、内径が一端から他端に向かって一端から所定の距離まで漸次小さくなるテーパ形状をなしている。接続にあたっては、内周面のうち少なくとも一部の内径が、ジョイント部材3のスリーブ3aの外周面のうち少なくとも一部の外径よりも小さいサイズのものを用いる。より具体的には、径が大きい側(一端)の内径がジョイント部材3のスリーブ3aの径が大きい側(基部)の外径より僅かに小さく、径が小さい側(他端)の内径がジョイント部材3のスリーブ3aの径が小さい側(先端)の外径より僅かに小さいサイズのものを用いることが望ましく、更に、ナット4の径が大きい側(一端)の内径が、スリーブ3aの径が小さい側(先端)の外径より僅かに大きいことがより望ましい。ナット4の素材としては、例えば高強度鋼が用いられる。   The nut 4 is a substantially cylindrical metal member, and an inner peripheral surface thereof has a tapered shape in which an inner diameter gradually decreases from one end to a predetermined distance from one end to the other end. In connection, the inner diameter of at least a part of the inner peripheral surface is smaller than the outer diameter of at least a part of the outer peripheral surface of the sleeve 3a of the joint member 3. More specifically, the inner diameter on the larger diameter side (one end) is slightly smaller than the outer diameter on the larger diameter side (base) of the sleeve 3a of the joint member 3, and the inner diameter on the smaller diameter side (the other end) is the joint. It is desirable to use the member 3 having a size slightly smaller than the outer diameter of the sleeve 3a on the small diameter side (tip), and the inner diameter of the nut 4 on the large diameter side (one end) is larger than the diameter of the sleeve 3a. More desirably, it is slightly larger than the outer diameter of the small side (tip). As a material of the nut 4, for example, high strength steel is used.

前記かしめ継手である圧着式管継手を用いて管1の接合作業を行う際には、先ず、前記管1の接合端部内面に、図6に示される如く、インサート部材2の本体部を、その鍔部2aが管1の端面に突き当たるまで挿入する。上記したように、本体部の外径は管1の内径に略一致し、且つ本体部の外周の一端側には鍔部2aが張り出しているため、この鍔部2aが位置決めとなって、インサート部材2は本体部を鍔部2aの位置まで挿入したところで止まる。尚、管1の端部には、該管1を切断した際にバリが形成されていることが多く、インサート部材2を挿入する前にリーマ等によりバリ取りを行うと良い。続いて、該インサート部材2が挿入された管1の接合端部外面に、図7に示される如く、ナット4を嵌装すると共に、図示していない金属同士の接合を助ける濡れ性接着剤を塗布する。管1の端部をジョイント部材3のスリーブ3aに挿入する際、ナット4は、内径が大きい側の端部(一端側)がジョイント部材3側に向くようにして管1に通される。この後、図8に示される如く、前記管1の接合端部外面にジョイント部材3を嵌装し、かしめ継手である圧着式管継手用の圧着工具5(図10及び図11参照)によりナット4を、図9に示される如く、管1の軸線方向へ移動させる。ナット4の内周面はテーパ形状をなしており、大きい側の内径は、スリーブ3aの先端の外径より大きく基部の外径より小さいサイズのものを使用するので、ナット4の一端側は、スリーブ3aに一部が外嵌し、そこで一旦止まる。その後更に圧着工具5によりナット4を移動させると、展性のある金属素材で構成されたジョイント部材3のスリーブ3aは、高い強度を有するナット4に対して軸線方向に強い力で押し付けられ、その結果、ナット4の内周面から径方向内側に向かう力を受けて圧縮されるように変形し(かしめられ)ながら、ナット4の内側に潜り込んで行く。スリーブ3aがナット4に深く潜り込むに従い、スリーブ3aの変形が大きくなり、変形に対する反発力としてのかしめ力が増大し、この反発力は圧着工具5の万力部にトルクとなって伝わる。そしてジョイント部材3外面にナット4が嵌着し、前記管1の接合端部にジョイント部材3を気密接合するようになっている。   When performing the joining work of the pipe 1 using the crimping-type pipe joint that is the caulking joint, first, as shown in FIG. 6, the main body part of the insert member 2 is formed on the inner surface of the joining end part of the pipe 1. Insert until the flange 2a hits the end face of the tube 1. As described above, the outer diameter of the main body portion substantially coincides with the inner diameter of the tube 1 and the flange portion 2a projects from one end of the outer periphery of the main body portion. The member 2 stops when the main body is inserted to the position of the flange 2a. It should be noted that burrs are often formed at the end of the tube 1 when the tube 1 is cut, and deburring with a reamer or the like is preferable before inserting the insert member 2. Subsequently, as shown in FIG. 7, a nut 4 is fitted on the outer surface of the joint end of the tube 1 in which the insert member 2 is inserted, and a wettability adhesive that assists the joining of metals (not shown). Apply. When the end portion of the tube 1 is inserted into the sleeve 3a of the joint member 3, the nut 4 is passed through the tube 1 so that the end portion (one end side) having the larger inner diameter faces the joint member 3 side. Thereafter, as shown in FIG. 8, the joint member 3 is fitted on the outer surface of the joint end of the pipe 1, and the crimping tool 5 (see FIGS. 10 and 11) for a crimping-type pipe joint which is a caulking joint. 4 is moved in the axial direction of the tube 1 as shown in FIG. The inner peripheral surface of the nut 4 has a tapered shape, and the inner diameter of the larger side is larger than the outer diameter of the distal end of the sleeve 3a and smaller than the outer diameter of the base portion. A part of the sleeve 3a is externally fitted and temporarily stops there. Thereafter, when the nut 4 is further moved by the crimping tool 5, the sleeve 3a of the joint member 3 made of malleable metal material is pressed against the nut 4 having high strength with a strong force in the axial direction, As a result, the nut 4 enters the inside of the nut 4 while being deformed (crimped) so as to be compressed by receiving a force directed radially inward from the inner peripheral surface of the nut 4. As the sleeve 3a goes deeply into the nut 4, the deformation of the sleeve 3a increases, and the caulking force as a repulsive force against the deformation increases, and this repulsive force is transmitted to the vise portion of the crimping tool 5 as torque. A nut 4 is fitted on the outer surface of the joint member 3, and the joint member 3 is hermetically joined to the joining end portion of the pipe 1.

前記圧着工具5は、図10及び図11に示される如く、トリガースイッチ6aが取り付けられたグリップ型工具本体6の上部に、水平方向へ延びる電動油圧シリンダからなる圧着ユニット7を備え、該圧着ユニット7のシリンダ本体7aと、該シリンダ本体7aから軸線方向へ伸縮自在に延びるロッド部7bとにそれぞれ、前記管1及びジョイント部材3を支えるための第一支持具8及び第二支持具9が着脱自在に取り付けられるようになっている。   As shown in FIGS. 10 and 11, the crimping tool 5 includes a crimping unit 7 composed of an electrohydraulic cylinder extending in the horizontal direction at the upper part of the grip-type tool body 6 to which the trigger switch 6a is attached. A first support 8 and a second support 9 for supporting the tube 1 and the joint member 3 are attached to and detached from a cylinder body 7a of the cylinder 7 and a rod portion 7b extending from the cylinder body 7a so as to be extendable in the axial direction. It can be attached freely.

前記第一支持具8は、図10〜図12に示される如く、前記シリンダ本体7aの先端部に着脱自在に装着される第一脚部8aと、該第一脚部8a上に一体に設けられる第一台座部8bとを備え、該第一台座部8bのシリンダ本体7a軸線方向における一端部には、前記管1を支えるU字状の第一切欠部8cが形成されている。   As shown in FIGS. 10 to 12, the first support 8 is integrally provided on the first leg 8a and a first leg 8a that is detachably attached to the tip of the cylinder body 7a. And a U-shaped first notch 8c that supports the tube 1 is formed at one end of the first pedestal 8b in the axial direction of the cylinder body 7a.

又、前記第二支持具9は、図10〜図12に示される如く、前記ロッド部7bの先端部に着脱自在に装着される第二脚部9aと、該第二脚部9a上に一体に設けられる第二台座部9bとを備え、該第二台座部9bのロッド部7b軸線方向における一端部には、前記ジョイント部材3の環状溝部3cを支えるU字状の第二切欠部9cが形成されている。   Further, as shown in FIGS. 10 to 12, the second support 9 is integrated with a second leg portion 9a that is detachably attached to the distal end portion of the rod portion 7b, and the second leg portion 9a. And a second U-shaped second notch 9c that supports the annular groove 3c of the joint member 3 at one end in the axial direction of the rod 7b of the second pedestal 9b. Is formed.

因みに、前記第一支持具8及び第二支持具9は、管径に対応させて第一切欠部8c及び第二切欠部9cの大きさを変化させたものが複数組用意され、複数種類の外径の管1に対応し得るようになっている。   Incidentally, a plurality of types of the first support 8 and the second support 9 are prepared in which the sizes of the first notch 8c and the second notch 9c are changed according to the pipe diameter. It is possible to correspond to a tube 1 having an outer diameter of.

前記圧着工具5を使用する際には、先ず、図10(a)に示される如く、接合すべき管1の径に対応する第一支持具8及び第二支持具9を選定し、図10(b)に示される如く、前記シリンダ本体7aの先端部に第一支持具8の第一脚部8aを装着すると共に、前記ロッド部7bの先端部に第二支持具9の第二脚部9aを装着する。続いて、図10(c)に示される如く、前記第一支持具8の第一台座部8bの第一切欠部8cに管1をセットすると共に、前記第二支持具9の第二台座部9bの第二切欠部9cにジョイント部材3の環状溝部3cをセットする。この状態から、前記トリガースイッチ6aを押すと、前記圧着ユニット7のロッド部7bがシリンダ本体7aに引き込まれる方向へ収縮し、この動きが前記管1を支持する万力部に伝わる。これにより、ナット4が管1の軸線方向へ相対的に移動し、展性のある金属素材で構成されたジョイント部材3のスリーブ3aは、高い強度を有するナット4に対して軸線方向に強い力で押し付けられ、その結果、ナット4の内周面から径方向内側に向かう力を受けて圧縮されるように変形し(かしめられ)ながら、ナット4の内側に潜り込んで行くことで、ナット4が管1の軸線方向へ相対的に移動してジョイント部材3外面に嵌着され、前記管1の接合端部にジョイント部材3が気密接合されるようになっている(図9参照)。   When using the crimping tool 5, first, as shown in FIG. 10A, the first support 8 and the second support 9 corresponding to the diameter of the pipe 1 to be joined are selected. As shown in (b), the first leg 8a of the first support 8 is attached to the tip of the cylinder body 7a, and the second leg of the second support 9 is attached to the tip of the rod 7b. Wear 9a. Subsequently, as shown in FIG. 10 (c), the tube 1 is set in the first notch 8 c of the first pedestal portion 8 b of the first support 8 and the second pedestal of the second support 9. The annular groove 3c of the joint member 3 is set in the second notch 9c of the part 9b. When the trigger switch 6a is pressed from this state, the rod portion 7b of the crimping unit 7 contracts in the direction of being drawn into the cylinder body 7a, and this movement is transmitted to the vise portion that supports the tube 1. As a result, the nut 4 moves relatively in the axial direction of the tube 1, and the sleeve 3 a of the joint member 3 made of a malleable metal material has a strong force in the axial direction against the nut 4 having high strength. As a result, the nut 4 is submerged inside the nut 4 while being deformed (crimped) so as to be compressed by receiving a force directed radially inward from the inner circumferential surface of the nut 4. The tube 1 moves relatively in the axial direction and is fitted to the outer surface of the joint member 3, and the joint member 3 is hermetically joined to the joint end of the tube 1 (see FIG. 9).

尚、前記圧着式管継手(かしめ継手)用の圧着工具と関連する一般的技術水準を示すものとしては、例えば、特許文献1がある。   For example, Patent Document 1 shows a general technical level related to the crimping tool for the crimping type pipe joint (caulking joint).

特開平6−249374号公報JP-A-6-249374

しかしながら、従来の圧着工具5のように、複数種類の外径の管1に対応すべく、第一切欠部8c及び第二切欠部9cの大きさを変化させた第一支持具8及び第二支持具9を複数組用意するのでは、現場において、前記圧着工具5に対し第一支持具8及び第二支持具9を管径に応じてその都度着脱しなければならず、交換作業に手間と時間が掛かっており、改善が望まれていた。   However, like the conventional crimping tool 5, the first support member 8 and the second support member 8 in which the sizes of the first notch portion 8c and the second notch portion 9c are changed to correspond to the pipes 1 having a plurality of types of outer diameters. In preparing a plurality of sets of two support tools 9, the first support tool 8 and the second support tool 9 must be attached to and detached from the crimping tool 5 each time depending on the pipe diameter. It took time and effort, and improvements were desired.

又、前記第一支持具8及び第二支持具9はそれぞれ、一個当たりの重量がおよそ1.2kg程度あるため、例えば、五種類の外径の管1が存在している場合には、前記第一支持具8及び第二支持具9を合計十個用意しなければならず、その重量はおよそ12kgとなり、持ち運ぶだけでも作業者の負担が非常に大きくなっていた。   The first support 8 and the second support 9 each have a weight of about 1.2 kg. For example, when there are five types of outer diameter pipes 1, A total of ten first support tools 8 and second support tools 9 had to be prepared, and the weight thereof was approximately 12 kg, and the burden on the operator was very heavy just by carrying.

本発明は、上記従来の問題点に鑑みてなしたもので、圧着工具に対する管径に応じた第一支持具及び第二支持具の交換を不要とし得、作業効率向上を図り得ると共に、第一支持具及び第二支持具の運搬時における作業者の負担を大幅に軽減し得る圧着式管継手用圧着工具を提供しようとするものである。   The present invention has been made in view of the above-mentioned conventional problems, and it is possible to eliminate the need to replace the first support tool and the second support tool in accordance with the pipe diameter of the crimping tool, and to improve the working efficiency. An object of the present invention is to provide a crimping tool for a crimping-type pipe joint that can significantly reduce the burden on an operator during transportation of one support tool and a second support tool.

本発明は、展性のある金属素材で構成された管の接合端部内面に挿入される高強度鋼であるインサート部材と、前記管の接合端部外面に嵌装される展性のある金属素材で構成されたジョイント部材と、該ジョイント部材の端部外面に対して内周面から径方向内側に向かう力を管軸方向に移動することで圧縮力を内部の前記ジョイント部材端部外面に働かせ、前記ジョイント部材端部外面を変形させながら、自身の内側に潜り込ませる高強度鋼であるナットとを備え、
前記ジョイント部材は、二本の前記管の接合端部を対向させ自身を介して二本の管の間を連通連結する環状溝部の両端に、二つの管の接合端部をそれぞれ挿入して接続するためのスリーブを有し、該スリーブの基部側に前記環状溝部があり、環状溝部の両側の外側に張り出した支点部とを備え、前記スリーブは、管に外嵌する円筒形をしており、前記環状溝部内面のそれぞれの端部側には、該スリーブの内周に張り出すように段差部を有し、前記スリーブの外周面は、基部から所定距離だけ端部に向かったところを起点に、基部から端部に向かって外径が漸次小さくなるテーパ形状をなす部位を有してなる金属製の部材であり、
前記ナットの内周面は、内径が一端から他端に向かって一端から所定の距離まで漸次小さくなるテーパ形状をなす、かしめ継手である圧着式管継手を圧着する工具であり、
グリップ型工具本体の端部に該グリップ型工具本体と交差する方向へ延びるよう伸縮自在に設置された圧着ユニットと、該圧着ユニットの伸縮部に互いに近接・離反自在に且つそれぞれ着脱自在に取り付けられる第一支持具及び第二支持具とを備え、
インサート部材が挿入された管の接合端部外面にナット及びジョイント部材を嵌装し、該ナット及びジョイント部材を前記第一支持具及び第二支持具間にセットしつつ該第一支持具及び第二支持具で管を支えた状態で、前記圧着ユニットを収縮させることによりナットを管軸線方向へ移動させてジョイント部材外面に嵌着し、前記管の接合端部にジョイント部材を気密接合する圧着式管継手用圧着工具において、
前記第一支持具は、前記管の半径方向へ互いに近接・離反自在で且つ径が異なる複数の管を挟持するよう支持自在な第一スライドブロック機構を備え、
前記第二支持具は、前記管の半径方向へ互いに近接・離反自在で且つ径が異なる複数の管を挟持するよう支持自在な第二スライドブロック機構を備えたことを特徴とする圧着式管継手用圧着工具にかかるものである。
The present invention relates to an insert member that is a high-strength steel inserted into the inner surface of the joint end of a tube made of a malleable metal material, and the malleable metal that is fitted to the outer surface of the joint end of the tube. A joint member made of a material and a force directed radially inward from the inner peripheral surface with respect to the outer surface of the end portion of the joint member are moved in the tube axis direction so that a compressive force is applied to the outer surface of the joint member end portion inside. A nut that is a high-strength steel that is allowed to work and deforms the outer surface of the end portion of the joint member while being submerged inside itself,
The joint member is connected by inserting joint ends of two pipes at both ends of an annular groove portion that connects the two pipes in communication with each other with the joint ends of the two pipes facing each other. The sleeve has a circular groove portion on the base side of the sleeve, and includes fulcrum portions projecting outward on both sides of the annular groove portion, and the sleeve has a cylindrical shape that is externally fitted to the pipe. The inner surface of each of the annular groove portions has a stepped portion projecting from the inner periphery of the sleeve, and the outer peripheral surface of the sleeve starts from the base portion toward the end by a predetermined distance. In addition, a metal member having a portion having a tapered shape in which the outer diameter gradually decreases from the base portion toward the end portion,
The inner peripheral surface of the nut is a tool for crimping a crimped pipe joint, which is a caulking joint, in which the inner diameter gradually decreases from one end to a predetermined distance from one end to the other end,
A crimping unit that is telescopically installed at the end of the grip type tool main body so as to extend in a direction intersecting the grip type tool main body, and a telescopic part of the crimping unit are attached to and removable from each other so as to be close to and away from each other. A first support and a second support;
A nut and a joint member are fitted on the outer surface of the joint end portion of the pipe into which the insert member is inserted, and the first support tool and the first support tool are set while the nut and the joint member are set between the first support tool and the second support tool. With the pipe supported by the two support tools, the crimping unit is contracted to move the nut in the pipe axis direction and fit onto the outer surface of the joint member, and the joint member is hermetically joined to the joint end of the pipe. In type crimping tool
The first support includes a first slide block mechanism that is capable of supporting a plurality of tubes that are close to and away from each other in the radial direction of the tube and that have different diameters.
The second support tool includes a second slide block mechanism that is capable of supporting a plurality of pipes that are close to and away from each other in the radial direction of the pipe and that have different diameters. It is applied to a crimping tool for use.

前記圧着式管継手用圧着工具において、前記圧着ユニットは、前記グリップ型工具本体の上部に水平方向へ延びるよう設置されたシリンダ本体と、該シリンダ本体から軸線方向へ伸縮自在に延びるロッド部とからなる電動油圧シリンダであることが好ましい。   In the crimping tool for crimping-type pipe fittings, the crimping unit includes a cylinder body installed on the upper part of the grip-type tool body so as to extend in the horizontal direction, and a rod portion that extends from the cylinder body so as to expand and contract in the axial direction. An electric hydraulic cylinder is preferable.

前記圧着式管継手用圧着工具において、前記第一支持具は、前記シリンダ本体の先端部に着脱自在に装着される第一脚部と、該第一脚部上に一体に設けられる第一台座部と、該第一台座部上に配設される前記第一スライドブロック機構とを備え、
該第一スライドブロック機構は、前記第一台座部上に管の半径方向へ延びるよう敷設される第一ガイドレールと、該第一ガイドレールに沿って互いに近接・離反自在に配設され且つ内面側に前記ナット或いはジョイント部材が収まる第一スライドブロックと、該第一スライドブロックの内面側に突設され且つ前記ナットの端面或いは前記ジョイント部材外周に張り出す支点部間に形成される環状溝部に係合する第一突条とを備えることが好ましい。
In the crimping tool for a crimping-type pipe joint, the first support is a first leg that is detachably attached to a distal end portion of the cylinder body, and a first pedestal that is integrally provided on the first leg. And the first slide block mechanism disposed on the first pedestal portion,
The first slide block mechanism includes a first guide rail laid on the first pedestal portion so as to extend in a radial direction of the pipe, and a first guide rail that is disposed so as to be close to and away from each other along the first guide rail. A first slide block in which the nut or the joint member is accommodated on the side, and an annular groove formed between an end surface of the nut and a fulcrum projecting to the outer periphery of the joint member and projecting on the inner surface side of the first slide block It is preferable to provide the 1st protrusion to engage.

前記圧着式管継手用圧着工具において、前記第二支持具は、前記ロッド部の先端部に着脱自在に装着される第二脚部と、該第二脚部上に一体に設けられる第二台座部と、該第二台座部上に配設される前記第二スライドブロック機構とを備え、
該第二スライドブロック機構は、前記第二台座部上に管の半径方向へ延びるよう敷設される第二ガイドレールと、該第二ガイドレールに沿って互いに近接・離反自在に配設され且つ内面側に前記ナット或いはジョイント部材が収まる第二スライドブロックと、該第二スライドブロックの内面側に突設され且つ前記ナットの端面或いは前記ジョイント部材外周に張り出す支点部間に形成される環状溝部に係合する第二突条とを備えることが好ましい。
In the crimping tool for a crimping type pipe joint, the second support is a second leg portion that is detachably attached to a tip portion of the rod portion, and a second base that is integrally provided on the second leg portion. Part and the second slide block mechanism disposed on the second pedestal part,
The second slide block mechanism includes a second guide rail laid on the second pedestal portion so as to extend in the radial direction of the pipe, and an inner surface that is disposed so as to be close to and away from each other along the second guide rail. A second slide block in which the nut or the joint member is accommodated on the side, and an annular groove formed between an end surface of the nut or a fulcrum projecting to the outer periphery of the joint member and projecting on the inner surface side of the second slide block It is preferable to provide the 2nd protrusion to engage.

前記圧着式管継手用圧着工具において、前記第一スライドブロック機構は、径が異なる複数の管に対応させて前記第一スライドブロックの近接・離反方向における停止位置を段階的に規定する第一ストッパを備え、
前記第二スライドブロック機構は、径が異なる複数の管に対応させて前記第二スライドブロックの近接・離反方向における停止位置を段階的に規定する第二ストッパを備えることが好ましい。
In the crimping tool for crimping-type pipe joints, the first slide block mechanism includes a first stopper that gradually defines a stop position in the approaching / separating direction of the first slide block corresponding to a plurality of pipes having different diameters. With
The second slide block mechanism preferably includes a second stopper that defines a stop position in the approaching / separating direction of the second slide block in a stepwise manner corresponding to a plurality of tubes having different diameters.

本発明の圧着式管継手用圧着工具によれば、圧着工具に対する管径に応じた第一支持具及び第二支持具の交換を不要とし得、作業効率向上を図り得ると共に、第一支持具及び第二支持具の運搬時における作業者の負担を大幅に軽減し得るという優れた効果を奏し得る。   According to the crimping tool for crimping-type pipe joints of the present invention, it is possible to eliminate the need to replace the first support and the second support according to the pipe diameter of the crimping tool, and to improve the working efficiency. And the outstanding effect that the burden of the operator at the time of conveyance of a 2nd support tool can be reduced significantly can be show | played.

本発明の圧着式管継手用圧着工具の実施例を示す正面図である。It is a front view which shows the Example of the crimping | compression-bonding tool for crimping type pipe joints of this invention. 本発明の圧着式管継手用圧着工具の実施例を示す平面図であって、(a)は支持具の間隔を図3の間隔より拡張させた状態を示す図、(b)は管をセットした状態を示す図である。It is a top view which shows the Example of the crimping | compression-bonding tool for crimp type | mold pipe joints of this invention, Comprising: (a) is a figure which shows the state which expanded the space | interval of the support tool from the space | interval of FIG. 3, (b) sets a pipe | tube. It is a figure which shows the state which carried out. 本発明の圧着式管継手用圧着工具の実施例を示す平面図であって、(a)は支持具の間隔を図2の間隔より縮小させた状態を示す図、(b)は管をセットした状態を示す図である。It is a top view which shows the Example of the crimping | compression-bonding tool for crimping | compression-bonding type pipe joints of this invention, Comprising: (a) is a figure which shows the state which reduced the space | interval of the support tool from the space of FIG. It is a figure which shows the state which carried out. 本発明の圧着式管継手用圧着工具の実施例におけるストッパ機構を示す断面図である。It is sectional drawing which shows the stopper mechanism in the Example of the crimping | compression-bonding tool for crimping type pipe joints of this invention. 従来のかしめ継手である圧着式管継手の一例を示す側面図であって、組付け前の状態を示す図である。It is a side view which shows an example of the crimping type pipe joint which is a conventional caulking joint, Comprising: It is a figure which shows the state before an assembly | attachment. 従来のかしめ継手である圧着式管継手の一例を示す側面図であって、管の接合端部内面にインサート部材を挿入した状態を示す図である。It is a side view which shows an example of the crimping type pipe joint which is a conventional caulking joint, Comprising: It is a figure which shows the state which inserted the insert member in the joining end part inner surface of a pipe | tube. 従来のかしめ継手である圧着式管継手の一例を示す側面図であって、インサート部材が挿入された管の接合端部外面にナットを嵌装した状態を示す図である。It is a side view which shows an example of the crimping type pipe joint which is the conventional crimp joint, Comprising: It is a figure which shows the state which fitted the nut to the joining end part outer surface of the pipe | tube in which the insert member was inserted. 従来のかしめ継手である圧着式管継手の一例を示す側面図であって、インサート部材が挿入された管の接合端部外面にジョイント部材を嵌装した状態を示す図である。It is a side view which shows an example of the crimping type pipe joint which is a conventional caulking joint, Comprising: It is a figure which shows the state which fitted the joint member to the joining end part outer surface of the pipe | tube in which the insert member was inserted. 従来のかしめ継手である圧着式管継手の一例を示す側面図であって、ナットをジョイント部材外面に嵌着して管の接合端部にジョイント部材を気密接合した状態を示す図である。It is a side view which shows an example of the crimping type pipe joint which is a conventional caulking joint, Comprising: It is a figure which shows the state which fitted the nut to the joint member outer surface and airtightly joined the joint member to the joining edge part of the pipe. 従来の圧着式管継手用圧着工具の一例を示す側面図であって、(a)は管径に対応した第一支持具及び第二支持具を装着する状態を示す図、(b)は第一支持具及び第二支持具を装着した状態を示す図、(c)は第一支持具及び第二支持具に管をセットした状態を示す図である。It is a side view which shows an example of the conventional crimping | compression-bonding tool for crimp type pipe fittings, Comprising: (a) is a figure which shows the state which mounts the 1st support tool and 2nd support tool corresponding to a pipe diameter, (b) is the 1st. The figure which shows the state which mounted | wore the 1st support tool and the 2nd support tool, (c) is a figure which shows the state which set the pipe | tube to the 1st support tool and the 2nd support tool. 従来の圧着式管継手用圧着工具の一例を示す平面図である。It is a top view which shows an example of the conventional crimping tool for crimp type pipe joints. 従来の圧着式管継手用圧着工具の一例における第一支持具及び第二支持具を示す正面図である。It is a front view which shows the 1st support tool and the 2nd support tool in an example of the conventional crimping | compression-bonding tool for crimp type pipe joints.

以下、本発明の実施の形態を添付図面を参照して説明する。   Embodiments of the present invention will be described below with reference to the accompanying drawings.

図1〜図4は本発明の圧着式管継手用圧着工具の実施例であって、図中、図5〜図12と同一の符号を付した部分は同一物を表わしており、基本的な構成は図5〜図12に示す従来のものと同様であるが、本実施例の特徴とするところは、図1〜図4に示す如く、第一支持具8が、管1の半径方向へ互いに近接・離反自在で且つ径が異なる複数の管1を挟持するよう支持自在な第一スライドブロック機構10を備え、第二支持具9が、前記管1の半径方向へ互いに近接・離反自在で且つ径が異なる複数の管1を挟持するよう支持自在な第二スライドブロック機構11を備えた点にある。   1-4 is an Example of the crimping | compression-bonding tool for crimping-type pipe joints of this invention, Comprising: The part which attached | subjected the code | symbol same as FIGS. 5-12 represents the same thing, and is fundamental. Although the structure is the same as that of the conventional one shown in FIGS. 5 to 12, the feature of this embodiment is that the first support 8 is arranged in the radial direction of the tube 1 as shown in FIGS. A first slide block mechanism 10 is provided that can be moved close to and away from each other and that can support a plurality of tubes 1 having different diameters, and a second support 9 can be moved toward and away from each other in the radial direction of the tube 1. In addition, a second slide block mechanism 11 that can be supported so as to sandwich a plurality of tubes 1 having different diameters is provided.

本実施例の場合、図1、図2及び図3に示す如く、前記第一支持具8は、電動油圧シリンダで構成された圧着ユニット7のシリンダ本体7aの先端部に着脱自在に装着される第一脚部8aと、該第一脚部8a上に一体に設けられる第一台座部8bと、該第一台座部8b上に配設される前記第一スライドブロック機構10とを備えている。   In the case of the present embodiment, as shown in FIGS. 1, 2 and 3, the first support 8 is detachably attached to the distal end portion of the cylinder body 7a of the crimping unit 7 constituted by an electric hydraulic cylinder. The first leg portion 8a, the first pedestal portion 8b provided integrally on the first leg portion 8a, and the first slide block mechanism 10 disposed on the first pedestal portion 8b are provided. .

前記第一スライドブロック機構10は、前記第一台座部8b上に管1の半径方向へ延びるよう敷設される第一ガイドレール10aと、該第一ガイドレール10aに沿って互いに近接・離反自在に配設され且つ内面側に前記ナット4或いはジョイント部材3が収まる第一スライドブロック10bと、該第一スライドブロック10bの内面側に突設され且つ前記ナット4の端面或いは前記ジョイント部材3外周に張り出す支点部3b間に形成される環状溝部3cに係合する第一突条10cとを備えている。   The first slide block mechanism 10 includes a first guide rail 10a laid on the first pedestal portion 8b so as to extend in the radial direction of the pipe 1, and can be moved toward and away from each other along the first guide rail 10a. A first slide block 10b in which the nut 4 or the joint member 3 is disposed on the inner surface side, and a projecting projecting surface on the inner surface side of the first slide block 10b and extending on the end surface of the nut 4 or the outer periphery of the joint member 3 And a first protrusion 10c that engages with an annular groove 3c formed between the supporting fulcrum portions 3b.

前記第一スライドブロック10bは、正面形状(図1参照)と平面形状(図2及び図3参照)がそれぞれL字状となる部材であって、二つの第一スライドブロック10bを平面的に見て矩形形状となるよう組合せて配設してある。その際、一方の第一スライドブロック10bの第一ガイドレール10aと平行に延びる部分の先端部の上に、他方の第一スライドブロック10bの第一ガイドレール10aと直角に延びる部分の先端部が載置されると共に、他方の第一スライドブロック10bの第一ガイドレール10aと平行に延びる部分の先端部の上に、一方の第一スライドブロック10bの第一ガイドレール10aと直角に延びる部分の先端部が載置されるようにしてある。前記一方の第一スライドブロック10bの内面側に突設される第一突条10cは、図1に示す如く、上下方向と水平方向へ延びるL字状に形成され、前記他方の第一スライドブロック10bの内面側に突設される第一突条10cは、図1に示す如く、上下方向へのみ延びるI字状に形成されて前記一方の第一スライドブロック10bの内面側に突設される第一突条10cの上に載置され、凹形状の突条が形成されるようになっている。   The first slide block 10b is a member having a front shape (see FIG. 1) and a planar shape (see FIGS. 2 and 3) each having an L shape, and the two first slide blocks 10b are viewed in plan view. In combination, they are arranged in a rectangular shape. At that time, the tip of the portion of one of the first slide blocks 10b that extends at right angles to the first guide rail 10a of the other first slide block 10b is on the tip of the portion of the other first slide block 10b that extends in parallel with the first guide rail 10a. A portion of the first slide block 10b that extends perpendicularly to the first guide rail 10a of the other first slide block 10b and that extends parallel to the first guide rail 10a of the other first slide block 10b. The tip is placed. As shown in FIG. 1, the first ridge 10c protruding from the inner surface of the first slide block 10b is formed in an L shape extending in the vertical direction and the horizontal direction, and the other first slide block. As shown in FIG. 1, the first protrusion 10c protruding from the inner surface side of 10b is formed in an I shape extending only in the vertical direction and protrudes from the inner surface side of the one first slide block 10b. It is mounted on the first protrusion 10c, and a concave protrusion is formed.

又、前記二つの第一スライドブロック10bの第一ガイドレール10aと平行に延びる部分の対向面に第一ラック10dを取り付けると共に、前記第一台座部8bの上面中央部に、前記第一ラック10dに噛合する第一ピニオン10eを上下方向へ延びる第一軸10fを中心として回転自在に配置してある。これにより、一方の第一スライドブロック10bを第一ガイドレール10aに沿って移動させると、前記第一ラック10dに噛合する第一ピニオン10eが回転して、他方の第一スライドブロック10bが一方の第一スライドブロック10bとは反対方向へ移動し、前記管1の半径方向へ二つの第一スライドブロック10bが互いに近接・離反するようになっている。   The first rack 10d is attached to the opposing surface of the portion extending in parallel with the first guide rail 10a of the two first slide blocks 10b, and the first rack 10d is provided at the center of the upper surface of the first pedestal portion 8b. The first pinion 10e meshing with the first pinion 10e is arranged so as to be rotatable about a first shaft 10f extending in the vertical direction. Thereby, when one first slide block 10b is moved along the first guide rail 10a, the first pinion 10e meshing with the first rack 10d is rotated, and the other first slide block 10b is moved to one of the first slide blocks 10b. The first slide block 10b moves in a direction opposite to that of the first slide block 10b, and the two first slide blocks 10b approach and separate from each other in the radial direction of the tube 1.

一方、前記第二支持具9は、図1、図2及び図3に示す如く、前記圧着ユニット7のロッド部7bの先端部に着脱自在に装着される第二脚部9aと、該第二脚部9a上に一体に設けられる第二台座部9bとを備え、該第二台座部9b上に配設される前記第二スライドブロック機構11とを備えている。   On the other hand, as shown in FIGS. 1, 2, and 3, the second support 9 includes a second leg portion 9 a that is detachably attached to a distal end portion of the rod portion 7 b of the crimping unit 7, and the second leg portion 9 a. A second pedestal portion 9b provided integrally on the leg portion 9a, and the second slide block mechanism 11 disposed on the second pedestal portion 9b.

前記第二スライドブロック機構11は、前記第二台座部9b上に管1の半径方向へ延びるよう敷設される第二ガイドレール11aと、該第二ガイドレール11aに沿って互いに近接・離反自在に配設され且つ内面側に前記ナット4或いはジョイント部材3が収まる第二スライドブロック11bと、該第二スライドブロック11bの内面側に突設され且つ前記ナット4の端面或いは前記ジョイント部材3外周に張り出す支点部3b間に形成される環状溝部3cに係合する第二突条11cとを備えている。   The second slide block mechanism 11 includes a second guide rail 11a laid on the second pedestal portion 9b so as to extend in the radial direction of the tube 1, and can be moved toward and away from each other along the second guide rail 11a. A second slide block 11b disposed on the inner surface side in which the nut 4 or the joint member 3 is accommodated, and projecting on the inner surface side of the second slide block 11b and extending on the end surface of the nut 4 or on the outer periphery of the joint member 3 And a second protrusion 11c that engages with an annular groove 3c formed between the supporting fulcrum portions 3b.

前記第二スライドブロック11bは、正面形状(図1参照)と平面形状(図2及び図3参照)がそれぞれL字状となる部材であって、二つの第二スライドブロック11bを平面的に見て矩形形状となるよう組合せて配設してある。その際、一方の第二スライドブロック11bの第二ガイドレール11aと平行に延びる部分の先端部の上に、他方の第二スライドブロック11bの第二ガイドレール11aと直角に延びる部分の先端部が載置されると共に、他方の第二スライドブロック11bの第二ガイドレール11aと平行に延びる部分の先端部の上に、一方の第二スライドブロック11bの第二ガイドレール11aと直角に延びる部分の先端部が載置されるようにしてある。前記一方の第二スライドブロック11bの内面側に突設される第二突条11cは、図1に示す如く、上下方向と水平方向へ延びるL字状に形成され、前記他方の第二スライドブロック11bの内面側に突設される第二突条11cは、図1に示す如く、上下方向へのみ延びるI字状に形成されて前記一方の第二スライドブロック11bの内面側に突設される第二突条11cの上に載置され、凹形状の突条が形成されるようになっている。   The second slide block 11b is a member having a front shape (see FIG. 1) and a planar shape (see FIGS. 2 and 3) each having an L shape, and the two second slide blocks 11b are viewed in plan view. In combination, they are arranged in a rectangular shape. At this time, the tip of the portion of the other second slide block 11b that extends perpendicularly to the second guide rail 11a is on the tip of the portion that extends in parallel with the second guide rail 11a of the second slide block 11b. A portion of the second slide block 11b that extends perpendicularly to the second guide rail 11a of the second slide block 11b on the tip of the portion of the other second slide block 11b that extends parallel to the second guide rail 11a. The tip is placed. As shown in FIG. 1, the second ridge 11c protruding from the inner surface of the one second slide block 11b is formed in an L shape extending in the vertical direction and the horizontal direction, and the other second slide block As shown in FIG. 1, the second ridge 11c protruding from the inner surface of 11b is formed in an I-shape that extends only in the vertical direction and protrudes from the inner surface of the one second slide block 11b. It is mounted on the second ridge 11c, and a concave ridge is formed.

又、前記二つの第二スライドブロック11bの第二ガイドレール11aと平行に延びる部分の対向面に第二ラック11dを取り付けると共に、前記第二台座部9bの上面中央部に、前記第二ラック11dに噛合する第二ピニオン11eを上下方向へ延びる第二軸11fを中心として回転自在に配置してある。これにより、一方の第二スライドブロック11bを第二ガイドレール11aに沿って移動させると、前記第二ラック11dに噛合する第二ピニオン11eが回転して、他方の第二スライドブロック11bが一方の第二スライドブロック11bとは反対方向へ移動し、前記管1の半径方向へ二つの第二スライドブロック11bが互いに近接・離反するようになっている。   A second rack 11d is attached to the opposing surface of a portion extending in parallel with the second guide rail 11a of the two second slide blocks 11b, and the second rack 11d is provided at the center of the upper surface of the second pedestal portion 9b. The second pinion 11e meshing with the second pinion 11e is arranged so as to be rotatable about a second shaft 11f extending in the vertical direction. Thereby, when one second slide block 11b is moved along the second guide rail 11a, the second pinion 11e meshing with the second rack 11d rotates, and the other second slide block 11b The second slide block 11b moves in a direction opposite to that of the second slide block 11b, and the two second slide blocks 11b approach and separate from each other in the radial direction of the tube 1.

更に、前記第一スライドブロック機構10は、径が異なる複数の管1(図1参照)に対応させて前記第一スライドブロック10bの近接・離反方向における停止位置を段階的に規定する第一ストッパ12を第一ガイドレール10aに沿って延設して備え、前記第二スライドブロック機構11は、径が異なる複数の管1に対応させて前記第二スライドブロック11bの近接・離反方向における停止位置を段階的に規定する第二ストッパ13を第二ガイドレール11aに沿って延設して備えている。   Further, the first slide block mechanism 10 includes a first stopper that defines stepwise stopping positions in the approaching / separating direction of the first slide block 10b in correspondence with a plurality of pipes 1 (see FIG. 1) having different diameters. 12 extends along the first guide rail 10a, and the second slide block mechanism 11 has a stop position in the approaching / separating direction of the second slide block 11b corresponding to a plurality of pipes 1 having different diameters. The second stopper 13 is provided to extend along the second guide rail 11a.

前記第一ストッパ12は、図4に示す如く、第一台座部8bに複数個の第一穴12aを、径が異なる複数の管1に対応するよう第一スライドブロック10bの近接・離反方向へ所要間隔をあけて設け、前記第一穴12aの内部に、第一ボール12bをその上面部のみが部分的に突出し且つ必要に応じて埋没自在となるよう装填すると共に、前記第一ボール12bを突出方向へ付勢する第一圧縮バネ12cを充填し、前記第一スライドブロック10bの底面に、前記第一ボール12bの突出部分が係合する円弧断面を有する第一係止溝12dを凹設することにより構成してある。因みに、前記第一係止溝12dが第一穴12aの直上に来ない場合は、前記第一圧縮バネ12cの付勢力に抗して前記第一ボール12bが第一係止溝12d内に埋没し、前記第一スライドブロック10bの移動を妨げる心配はない。尚、図4の例では、前記第一係止溝12dを前記第一ボール12bに対応させて複数形成しているが、該第一係止溝12dは、所要箇所に一個のみ、或いは第一スライドブロック10bの近接・離反方向と直交する方向へ一条のみ凹設するようにしても良い。又、図4の例では、前記第一穴12aに装填されて第一圧縮バネ12cにより付勢される第一ボール12bを複数個設けているが、該第一ボール12bを一個のみとし、径が異なる複数の管1に対応するよう第一スライドブロック10bの近接・離反方向へ所要間隔をあけて前記第一係止溝12dを複数設けるようにしても良い。この場合、複数の第一係止溝12dをそれぞれ第一スライドブロック10bの近接・離反方向と直交する方向へ延びる溝とし、前記第一ボール12b及び該第一ボール12bが装填される第一穴12aを、第一スライドブロック10bの近接・離反方向と直交する方向へ複数配設するようにしても良い。   As shown in FIG. 4, the first stopper 12 has a plurality of first holes 12a in the first pedestal portion 8b in the approaching / separating direction of the first slide block 10b so as to correspond to the plurality of tubes 1 having different diameters. The first ball 12b is loaded in the first hole 12a so that only the upper surface portion thereof partially protrudes and can be embedded as necessary. A first compression spring 12c that is biased in the protruding direction is filled, and a first locking groove 12d having an arc cross section with which the protruding portion of the first ball 12b engages is provided in the bottom surface of the first slide block 10b. It is comprised by doing. Incidentally, when the first locking groove 12d does not come directly above the first hole 12a, the first ball 12b is buried in the first locking groove 12d against the urging force of the first compression spring 12c. However, there is no concern that the movement of the first slide block 10b will be hindered. In the example of FIG. 4, a plurality of the first locking grooves 12d are formed corresponding to the first balls 12b. Only one line may be provided in the direction perpendicular to the approaching / separating direction of the slide block 10b. Further, in the example of FIG. 4, a plurality of first balls 12b loaded in the first hole 12a and urged by the first compression spring 12c are provided. A plurality of the first locking grooves 12d may be provided at predetermined intervals in the approaching / separating direction of the first slide block 10b so as to correspond to a plurality of pipes 1 having different diameters. In this case, the plurality of first locking grooves 12d are grooves extending in a direction perpendicular to the approaching / separating direction of the first slide block 10b, and the first hole into which the first ball 12b and the first ball 12b are loaded. A plurality of 12a may be arranged in a direction orthogonal to the approaching / separating direction of the first slide block 10b.

前記第二ストッパ13も前記第一ストッパ12と同様の構造を有し、図4に示す如く、第二台座部9bに複数個の第二穴13aを、径が異なる複数の管1に対応するよう第二スライドブロック11bの近接・離反方向へ所要間隔をあけて設け、前記第二穴13aの内部に、第二ボール13bをその上面部のみが部分的に突出し且つ必要に応じて埋没自在となるよう装填すると共に、前記第二ボール13bを突出方向へ付勢する第二圧縮バネ13cを充填し、前記第二スライドブロック11bの底面に、前記第二ボール13bの突出部分が係合する円弧断面を有する第二係止溝13dを凹設することにより構成してある。因みに、前記第二係止溝13dが第二穴13aの直上に来ない場合は、前記第二圧縮バネ13cの付勢力に抗して前記第二ボール13bが第二係止溝13d内に埋没し、前記第二スライドブロック11bの移動を妨げる心配はない。尚、図4の例では、前記第二係止溝13dを前記第二ボール13bに対応させて複数形成しているが、該第二係止溝13dは、所要箇所に一個のみ、或いは第二スライドブロック11bの近接・離反方向と直交する方向へ一条のみ凹設するようにしても良い。又、図4の例では、前記第二穴13aに装填されて第二圧縮バネ13cにより付勢される第二ボール13bを複数個設けているが、該第二ボール13bを一個のみとし、径が異なる複数の管1に対応するよう第二スライドブロック11bの近接・離反方向へ所要間隔をあけて前記第二係止溝13dを複数設けるようにしても良い。この場合、複数の第二係止溝13dをそれぞれ第二スライドブロック11bの近接・離反方向と直交する方向へ延びる溝とし、前記第二ボール13b及び該第二ボール13bが装填される第二穴13aを、第二スライドブロック11bの近接・離反方向と直交する方向へ複数配設するようにしても良い。   The second stopper 13 also has the same structure as the first stopper 12, and as shown in FIG. 4, a plurality of second holes 13a are formed in the second pedestal portion 9b and correspond to a plurality of pipes 1 having different diameters. The second slide block 11b is provided with a required interval in the approaching / separating direction so that the second ball 13b protrudes only partially inside the second hole 13a and can be embedded as necessary. The arc is such that the second ball 13b is filled with a second compression spring 13c that urges the second ball 13b in the protruding direction, and the protruding portion of the second ball 13b engages with the bottom surface of the second slide block 11b. The second locking groove 13d having a cross section is formed by being recessed. Incidentally, when the second locking groove 13d does not come directly above the second hole 13a, the second ball 13b is buried in the second locking groove 13d against the urging force of the second compression spring 13c. However, there is no concern that the movement of the second slide block 11b will be hindered. In the example of FIG. 4, a plurality of the second locking grooves 13d are formed corresponding to the second balls 13b. Only one line may be provided in the direction perpendicular to the approaching / separating direction of the slide block 11b. In the example of FIG. 4, a plurality of second balls 13b are provided which are loaded into the second holes 13a and are urged by the second compression springs 13c. A plurality of the second locking grooves 13d may be provided at a necessary interval in the approaching / separating direction of the second slide block 11b so as to correspond to a plurality of pipes 1 having different diameters. In this case, each of the plurality of second locking grooves 13d is a groove extending in a direction orthogonal to the approaching / separating direction of the second slide block 11b, and the second hole into which the second ball 13b and the second ball 13b are loaded. A plurality of 13a may be arranged in a direction orthogonal to the approaching / separating direction of the second slide block 11b.

次に、上記実施例の作用を説明する。   Next, the operation of the above embodiment will be described.

圧着工具5を使用する際には、先ず、圧着ユニット7のシリンダ本体7aの先端部に図1に示す第一支持具8の第一脚部8aを装着すると共に、圧着ユニット7のロッド部7bの先端部に図1に示す第二支持具9の第二脚部9aを装着する。続いて、前記第一支持具8の第一台座部8b上に配設された第一スライドブロック機構10に管1をセットすると共に、前記第二支持具9の第二台座部9b上に配設された第二スライドブロック機構11にジョイント部材3の環状溝部3cをセットする。   When using the crimping tool 5, first, the first leg 8 a of the first support 8 shown in FIG. 1 is attached to the tip of the cylinder body 7 a of the crimping unit 7, and the rod portion 7 b of the crimping unit 7. The second leg 9a of the second support 9 shown in FIG. Subsequently, the tube 1 is set on the first slide block mechanism 10 disposed on the first pedestal portion 8 b of the first support tool 8, and is disposed on the second pedestal portion 9 b of the second support tool 9. The annular groove 3c of the joint member 3 is set on the second slide block mechanism 11 provided.

この時、大径の管1の場合には、図2(a)に示す如く、二つの第一スライドブロック10bを管1の半径方向へ互いに離反させてその間隔を拡張させておくと、図1に示すL字状の第一突条10cとI字状の第一突条10cとの間における空間に、図2(b)に示す如く、大径の管1が落とし込まれるようにセットされると共に、図2(a)に示す如く、二つの第二スライドブロック11bを管1の半径方向へ互いに離反させてその間隔を拡張させておくと、図1に示すL字状の第二突条11cとI字状の第二突条11cとの間における空間に、図2(b)に示す如く、大径のジョイント部材3の二つの支点部3bに挟まれる環状溝部3cが落とし込まれるようにセットされる形となる。その際、前記L字状の第二突条11cの一側面及び底面とI字状の第二突条11cの反対の側面とに、前記環状溝部3cが軽く接触して保持され、大径のジョイント部材3の二つの支点部3bの円弧の一部が、前記L字状とI字状の二つの第二突条11cで形成される凹形状の突条の底面及び両側面の三点に接触する形となる。   At this time, in the case of the large-diameter pipe 1, as shown in FIG. 2 (a), if the two first slide blocks 10b are separated from each other in the radial direction of the pipe 1 and the interval between them is expanded, As shown in FIG. 2B, the large-diameter pipe 1 is set into the space between the L-shaped first ridge 10c and the I-shaped first ridge 10c shown in FIG. At the same time, as shown in FIG. 2 (a), when the two second slide blocks 11b are separated from each other in the radial direction of the tube 1 and the distance between them is expanded, the second L-shaped block shown in FIG. As shown in FIG. 2B, the annular groove 3c sandwiched between the two fulcrum portions 3b of the large-diameter joint member 3 is dropped into the space between the protrusion 11c and the I-shaped second protrusion 11c. It will be set to be set. At that time, the annular groove portion 3c is held in light contact with one side surface and the bottom surface of the L-shaped second ridge 11c and the opposite side surface of the I-shaped second ridge 11c. Part of the arc of the two fulcrum portions 3b of the joint member 3 is at three points on the bottom surface and both side surfaces of the concave protrusion formed by the two L-shaped and I-shaped second protrusions 11c. It comes in contact.

又、小径の管1の場合には、図3(a)に示す如く、二つの第一スライドブロック10bを管1の半径方向へ互いに近接させてその間隔を縮小させておくと、図1に示すL字状の第一突条10cとI字状の第一突条10cとの間における空間に、図3(b)に示す如く、小径の管1が落とし込まれるようにセットされると共に、図3(a)に示す如く、二つの第二スライドブロック11bを管1の半径方向へ互いに近接させてその間隔を縮小させておくと、図1に示すL字状の第二突条11cとI字状の第二突条11cとの間における空間に、図3(b)に示す如く、小径のジョイント部材3の二つの支点部3bに挟まれる環状溝部3cが落とし込まれるようにセットされる形となる。その際、前記L字状の第二突条11cの一側面及び底面とI字状の第二突条11cの反対の側面とに、前記環状溝部3cが軽く接触して保持され、小径のジョイント部材3の二つの支点部3bの円弧の一部が、前記L字状とI字状の二つの第二突条11cで形成される凹形状の突条の底面及び両側面の三点に接触する形となる。   In the case of the small-diameter pipe 1, as shown in FIG. 3 (a), if the two first slide blocks 10b are brought close to each other in the radial direction of the pipe 1 and the distance between them is reduced, FIG. As shown in FIG. 3B, the small-diameter pipe 1 is set to be dropped into the space between the L-shaped first ridge 10c and the I-shaped first ridge 10c. As shown in FIG. 3A, when the two second slide blocks 11b are brought close to each other in the radial direction of the tube 1 and the distance between them is reduced, the L-shaped second protrusion 11c shown in FIG. As shown in FIG. 3B, the annular groove portion 3c sandwiched between the two fulcrum portions 3b of the small-diameter joint member 3 is dropped into the space between the I-shaped second protrusion 11c. Will be in the form. At that time, the annular groove 3c is held in light contact with one side surface and the bottom surface of the L-shaped second ridge 11c and the opposite side surface of the I-shaped second ridge 11c. Part of the arc of the two fulcrum portions 3b of the member 3 contacts the three points of the bottom surface and both side surfaces of the concave ridge formed by the two L-shaped and I-shaped second ridges 11c. It becomes the form to do.

前記大径と小径の中間の径を有する管1の場合には、該管1の径に対応させて前記第一スライドブロック10bの間隔を適合させることにより、前記L字状の第二突条11cとI字状の第二突条11cとの間における空間に管1が落とし込まれるようにセットされると共に、前記管1の径に対応させて前記第二スライドブロック11bの間隔を適合させることにより、前記L字状の第二突条11cとI字状の第二突条11cとの間における空間にジョイント部材3の二つの支点部3bに挟まれる環状溝部3cが落とし込まれるようにセットされる形となる。その際、前記L字状の第二突条11cの一側面及び底面とI字状の第二突条11cの反対の側面とに前記環状溝部3cが軽く接触して保持され、中間の径のジョイント部材3の二つの支点部3bの円弧の一部が、前記L字状とI字状の二つの第二突条11cで形成される凹形状の突条の底面及び両側面の三点に接触する形となる。   In the case of the pipe 1 having an intermediate diameter between the large diameter and the small diameter, the interval between the first slide blocks 10b is adapted to correspond to the diameter of the pipe 1 so that the L-shaped second ridge is formed. The tube 1 is set so as to be dropped into the space between the 11c and the I-shaped second protrusion 11c, and the interval between the second slide blocks 11b is adapted to correspond to the diameter of the tube 1. Thus, the annular groove 3c sandwiched between the two fulcrum portions 3b of the joint member 3 is dropped into the space between the L-shaped second ridge 11c and the I-shaped second ridge 11c. It becomes a set shape. At that time, the annular groove 3c is held in light contact with one side surface and the bottom surface of the L-shaped second ridge 11c and the opposite side surface of the I-shaped second ridge 11c, and has an intermediate diameter. Part of the arc of the two fulcrum portions 3b of the joint member 3 is at three points on the bottom surface and both side surfaces of the concave protrusion formed by the two L-shaped and I-shaped second protrusions 11c. It comes in contact.

ここで、管1の径に対応させて前記第一スライドブロック10bの間隔を調節する際には、第一ストッパ12の第一圧縮バネ12cによって突出方向へ付勢される第一ボール12bが第一係止溝12dに係合するため、前記第一スライドブロック10bの近接・離反方向における停止位置を段階的に規定することが可能となり、前記第一スライドブロック10bの間隔調節作業が的確に行われる。尚、前記第一スライドブロック10bをスライドさせる際、前記第一ボール12bは第一圧縮バネ12cの付勢力に抗して第一穴12aの内部に埋没するため、前記第一スライドブロック10bの動作を阻害する心配はない。同様に、管1の径に対応させて前記第二スライドブロック11bの間隔を調節する際には、第二ストッパ13の第二圧縮バネ13cによって突出方向へ付勢される第二ボール13bが第二係止溝13dに係合するため、前記第二スライドブロック11bの近接・離反方向における停止位置を段階的に規定することが可能となり、前記第二スライドブロック11bの間隔調節作業が的確に行われる。尚、前記第二スライドブロック11bをスライドさせる際、前記第二ボール13bは第二圧縮バネ13cの付勢力に抗して第二穴13aの内部に埋没するため、前記第二スライドブロック11bの動作を阻害する心配はない。   Here, when the distance between the first slide blocks 10b is adjusted according to the diameter of the tube 1, the first ball 12b urged in the protruding direction by the first compression spring 12c of the first stopper 12 is the first ball 12b. Since it engages with one locking groove 12d, it is possible to define the stop position in the approaching / separating direction of the first slide block 10b in a stepwise manner, and the interval adjustment work of the first slide block 10b can be performed accurately. Is called. When the first slide block 10b is slid, the first ball 12b is buried in the first hole 12a against the urging force of the first compression spring 12c. There is no worry of disturbing. Similarly, when the distance between the second slide blocks 11b is adjusted in accordance with the diameter of the tube 1, the second ball 13b urged in the protruding direction by the second compression spring 13c of the second stopper 13 is the first ball 13b. Since it engages with the two locking grooves 13d, the stop position of the second slide block 11b in the approaching / separating direction can be defined in a stepwise manner, and the interval adjustment work of the second slide block 11b can be performed accurately. Is called. When the second slide block 11b is slid, the second ball 13b is buried in the second hole 13a against the urging force of the second compression spring 13c. There is no worry of disturbing.

前記第一スライドブロック10bに管1をセットすると共に、前記第二スライドブロック11bにジョイント部材3の環状溝部3cをセットした状態から、前記圧着工具5のグリップ型工具本体6のトリガースイッチ6a(図10参照)を押すと、前記圧着ユニット7のロッド部7bがシリンダ本体7aに引き込まれる方向へ収縮するが、前記第二スライドブロック11bの第二突条11cにジョイント部材3の環状溝部3cが係合しており、ジョイント部材3の二つの支点部3bのうちナット4側の支持部3bの側面と、凹形状の第二突条11cの底面及び両側面の三点の周囲とががっちり面接触して力を受け止めるので、ナット4の端面が第一突条10cによって押される形で該ナット4が管1の軸線方向へ相対的に移動してジョイント部材3外面に嵌着され、前記管1の接合端部にジョイント部材3が気密接合される(図9参照)。   From the state in which the tube 1 is set on the first slide block 10b and the annular groove 3c of the joint member 3 is set on the second slide block 11b, the trigger switch 6a (see FIG. 10), the rod portion 7b of the crimping unit 7 contracts in the direction of being drawn into the cylinder body 7a, but the annular groove 3c of the joint member 3 is engaged with the second protrusion 11c of the second slide block 11b. Of the two fulcrum portions 3b of the joint member 3 and the side surface of the support portion 3b on the nut 4 side and the periphery of the three points of the bottom surface and both side surfaces of the concave second protrusion 11c Since the force is received, the end surface of the nut 4 is pushed by the first protrusion 10c so that the nut 4 moves relatively in the axial direction of the pipe 1 and the joint. Is fitted to the timber 3 the outer surface, the joint member 3 is hermetically bonded to the joining end portion of the tube 1 (see FIG. 9).

図2(b)に示す如く、前記ジョイント部材3の二つの支点部3bに挟まれる環状溝部3cが、L字状の第二突条11cの一側面及び底面と、I字状の第二突条11cの反対の側面とに軽く接触して保持され、ジョイント部材3の二つの支持部3bの円弧の一部が二つの第二突条11cで形成される凹形状の突条の底面及び両側面の三点に接触するよう、前記ジョイント部材3が落とし込まれてセットされているので、前記第二スライドブロック11bのスライドレール11aに対しきちんと平行に面出しされている第二突条11cの側面と、同じくジョイント部材3の軸方向に対し直交する方向に面出しができている支点部3bとが面で接触することとなり、前記圧着工具5のロッド部7bがシリンダ本体7aに引き込まれる強力な力が働いても、前記第二スライドブロック11bにはスライドレール11a方向への分力は働かず、径が異なる複数の管1に対応するようにした第二スライドブロック11bの近接・離反方向へ該第二スライドブロック11bが移動することはない。   As shown in FIG. 2 (b), the annular groove 3c sandwiched between the two fulcrum portions 3b of the joint member 3 has one side surface and a bottom surface of the L-shaped second protrusion 11c, and the I-shaped second protrusion. The bottom surface and both sides of the concave ridge that is held in light contact with the opposite side surface of the ridge 11c and in which part of the arc of the two support portions 3b of the joint member 3 is formed by the two second ridges 11c. Since the joint member 3 is dropped and set so as to come into contact with the three points of the surface, the second protrusion 11c that is properly surfaced parallel to the slide rail 11a of the second slide block 11b. The side surface and the fulcrum portion 3b that is chamfered in the direction orthogonal to the axial direction of the joint member 3 come into contact with each other, and the rod portion 7b of the crimping tool 5 is pulled into the cylinder body 7a. Power However, no component force in the direction of the slide rail 11a acts on the second slide block 11b, and the second slide block 11b adapted to correspond to a plurality of pipes 1 having different diameters moves toward and away from the second slide block 11b. The slide block 11b does not move.

この結果、従来の圧着工具5のように、複数種類の外径の管1に対応すべく、第一切欠部8c及び第二切欠部9cの大きさを変化させた第一支持具8及び第二支持具9を複数組用意するのとは異なり、現場において、前記圧着工具5に対し第一支持具8及び第二支持具9を管径に応じてその都度着脱しなくて済み、交換作業に手間と時間が掛からなくなる。   As a result, like the conventional crimping tool 5, the first support member 8 in which the sizes of the first notch portion 8c and the second notch portion 9c are changed in order to correspond to a plurality of types of outer diameter pipes 1 and Unlike the case where a plurality of sets of second support tools 9 are prepared, the first support tool 8 and the second support tool 9 do not need to be attached to and detached from the crimping tool 5 according to the pipe diameter at the site. It takes less time and effort to work.

又、前記第一支持具8及び第二支持具9はそれぞれ、一個当たりの重量がおよそ1.2kg程度あるが、例えば、五種類の外径の管1が存在している場合であっても、前記第一支持具8及び第二支持具9を合計二個用意すれば良く、その重量はおよそ2.4kg程度に抑えられるため、作業者は第一支持具8及び第二支持具9を容易に持ち運ぶことが可能となり、作業者の負担が非常に軽くなる。   Each of the first support 8 and the second support 9 has a weight of about 1.2 kg. For example, even when there are five types of outer diameter pipes 1, The first support tool 8 and the second support tool 9 may be prepared in total, and the weight of the first support tool 8 and the second support tool 9 can be suppressed to about 2.4 kg. It can be easily carried and the burden on the operator is very light.

こうして、圧着工具5に対する管1の径に応じた第一支持具8及び第二支持具9の交換を不要とし得、作業効率向上を図り得ると共に、第一支持具8及び第二支持具9の運搬時における作業者の負担を大幅に軽減し得る。   Thus, the replacement of the first support 8 and the second support 9 according to the diameter of the tube 1 with respect to the crimping tool 5 can be eliminated, the work efficiency can be improved, and the first support 8 and the second support 9 The burden on the operator during transportation can be greatly reduced.

そして、前記圧着ユニット7は、前記グリップ型工具本体6の上部に水平方向へ延びるよう設置されたシリンダ本体7aと、該シリンダ本体7aから軸線方向へ伸縮自在に延びるロッド部7bとからなる電動油圧シリンダであるため、手動の工具に比べより大きな圧縮力をジョイント部材3とナット4との間に効率良く作用させることが可能となり、管1の接合端部にジョイント部材3を気密接合する際の信頼性を高める上で有効となる。   The crimping unit 7 includes an electric hydraulic pressure composed of a cylinder main body 7a installed on the upper part of the grip-type tool main body 6 so as to extend in the horizontal direction and a rod portion 7b extending from the cylinder main body 7a so as to expand and contract in the axial direction. Since it is a cylinder, a larger compressive force than that of a manual tool can be efficiently applied between the joint member 3 and the nut 4, and when the joint member 3 is hermetically joined to the joint end of the pipe 1. This is effective in improving reliability.

又、前記第一支持具8は、前記シリンダ本体7aの先端部に着脱自在に装着される第一脚部8aと、該第一脚部8a上に一体に設けられる第一台座部8bと、該第一台座部8b上に配設される前記第一スライドブロック機構10とを備え、前記第一スライドブロック機構10は、前記第一台座部8b上に管1の半径方向へ延びるよう敷設される第一ガイドレール10aと、該第一ガイドレール10aに沿って互いに近接・離反自在に配設され且つ内面側に前記ナット4或いはジョイント部材3が収まる第一スライドブロック10bと、該第一スライドブロック10bの内面側に突設され且つ前記ナット4の端面或いは前記ジョイント部材3外周に張り出す支点部3b間に形成される環状溝部3cに係合する第一突条10cとを備えているため、前記第一スライドブロック10bによりナット4或いはジョイント部材3を支えつつ、前記管1の接合作業を安定して行うことができる。   The first support 8 includes a first leg portion 8a that is detachably attached to a distal end portion of the cylinder body 7a, a first pedestal portion 8b that is integrally provided on the first leg portion 8a, And the first slide block mechanism 10 disposed on the first pedestal portion 8b. The first slide block mechanism 10 is laid on the first pedestal portion 8b so as to extend in the radial direction of the pipe 1. A first guide rail 10a, a first slide block 10b which is disposed along the first guide rail 10a so as to be close to and away from each other and in which the nut 4 or the joint member 3 is accommodated on the inner surface side, and the first slide A first protrusion 10c that protrudes on the inner surface side of the block 10b and engages with an annular groove 3c formed between the end face of the nut 4 or the fulcrum part 3b projecting to the outer periphery of the joint member 3; While supporting the nut 4 or the joint member 3 by the first slide block 10b, and the joining operation of the pipe 1 can be stably performed.

更に又、前記第二支持具9は、前記ロッド部7bの先端部に着脱自在に装着される第二脚部9aと、該第二脚部9a上に一体に設けられる第二台座部9bとを備え、前記第二スライドブロック機構11は、前記第二台座部9b上に管1の半径方向へ延びるよう敷設される第二ガイドレール11aと、該第二ガイドレール11aに沿って互いに近接・離反自在に配設され且つ内面側に前記ナット4或いはジョイント部材3が収まる第二スライドブロック11bと、該第二スライドブロック11bの内面側に突設され且つ前記ナット4の端面或いは前記ジョイント部材3外周に張り出す支点部3b間に形成される環状溝部3cに係合する第二突条11cとを備えているため、前記第二スライドブロック11bによりナット4或いはジョイント部材3を支えつつ、前記管1の接合作業をより安定して行うことができる。   Furthermore, the second support 9 includes a second leg portion 9a that is detachably attached to the distal end portion of the rod portion 7b, and a second pedestal portion 9b that is integrally provided on the second leg portion 9a. The second slide block mechanism 11 includes a second guide rail 11a laid on the second pedestal portion 9b so as to extend in the radial direction of the tube 1, and a second guide rail 11a adjacent to each other along the second guide rail 11a. A second slide block 11b which is disposed so as to be separated and in which the nut 4 or the joint member 3 is accommodated on the inner surface side, and protrudes from the inner surface side of the second slide block 11b and which is an end surface of the nut 4 or the joint member 3 And a second protrusion 11c that engages with the annular groove 3c formed between the fulcrum portions 3b projecting to the outer periphery, so that the nut 4 or the joint member is formed by the second slide block 11b. While supporting the can perform the bonding operation of the tube 1 more stably.

更に、前記第一スライドブロック機構10は、径が異なる複数の管1(図1参照)に対応させて前記第一スライドブロック10bの近接・離反方向における停止位置を段階的に規定する第一ストッパ12を備え、前記第二スライドブロック機構11は、径が異なる複数の管1に対応させて前記第二スライドブロック11bの近接・離反方向における停止位置を段階的に規定する第二ストッパ13を備えているため、第一スライドブロック10b及び第二スライドブロック11bの間隔調節作業を的確に行うことができる。   Further, the first slide block mechanism 10 includes a first stopper that defines stepwise stopping positions in the approaching / separating direction of the first slide block 10b in correspondence with a plurality of pipes 1 (see FIG. 1) having different diameters. The second slide block mechanism 11 includes a second stopper 13 that defines the stop position in the approaching / separating direction of the second slide block 11b in a stepwise manner corresponding to a plurality of pipes 1 having different diameters. Therefore, the interval adjustment work between the first slide block 10b and the second slide block 11b can be accurately performed.

因みに、前記第一ストッパ12や第二ストッパ13を設ける代わりに、図示は省略しているが、二つの第一スライドブロック10b或いは二つの第二スライドブロック11bをそれぞれ互いに近接させる方向へ付勢するスプリングを設け、管1を半径方向両側から挟み付けるような構造を採用することにより、径が異なる複数の管1に対応させることも可能である。   Incidentally, instead of providing the first stopper 12 and the second stopper 13, although not shown, the two first slide blocks 10 b or the two second slide blocks 11 b are urged in directions to approach each other. By adopting a structure in which a spring is provided and the tube 1 is sandwiched from both sides in the radial direction, it is possible to correspond to a plurality of tubes 1 having different diameters.

尚、本発明の圧着式管継手用圧着工具は、上述の実施例にのみ限定されるものではなく、本発明の要旨を逸脱しない範囲内において種々変更を加え得ることは勿論である。   In addition, the crimping | compression-bonding tool for crimp type pipe joints of this invention is not limited only to the above-mentioned Example, Of course, various changes can be added within the range which does not deviate from the summary of this invention.

1 管
2 インサート部材
3 ジョイント部材
3b 支点部
3c 環状溝部
3i 段差部
4 ナット
5 圧着工具
6 グリップ型工具本体
6a トリガースイッチ
7 圧着ユニット
7a シリンダ本体
7b ロッド部
8 第一支持具
8a 第一脚部
8b 第一台座部
9 第二支持具
9a 第二脚部
9b 第二台座部
10 第一スライドブロック機構
10a 第一ガイドレール
10b 第一スライドブロック
10c 第一突条
11 第二スライドブロック機構
11a 第二ガイドレール
11b 第二スライドブロック
11c 第二突条
12 第一ストッパ
13 第二ストッパ
1 pipe 2 insert member 3 joint member 3b fulcrum part 3c annular groove part 3i step part 4 nut 5 crimping tool 6 grip-type tool body 6a trigger switch 7 crimping unit 7a cylinder body 7b rod part 8 first support 8a first leg part 8b First pedestal portion 9 Second support 9a Second leg portion 9b Second pedestal portion 10 First slide block mechanism 10a First guide rail 10b First slide block 10c First protrusion 11 Second slide block mechanism 11a Second guide Rail 11b Second slide block 11c Second protrusion 12 First stopper 13 Second stopper

Claims (5)

展性のある金属素材で構成された管の接合端部内面に挿入される高強度鋼であるインサート部材と、前記管の接合端部外面に嵌装される展性のある金属素材で構成されたジョイント部材と、該ジョイント部材の端部外面に対して内周面から径方向内側に向かう力を管軸方向に移動することで圧縮力を内部の前記ジョイント部材端部外面に働かせ、前記ジョイント部材端部外面を変形させながら、自身の内側に潜り込ませる高強度鋼であるナットとを備え、
前記ジョイント部材は、二本の前記管の接合端部を対向させ自身を介して二本の管の間を連通連結する環状溝部の両端に、二つの管の接合端部をそれぞれ挿入して接続するためのスリーブを有し、該スリーブの基部側に前記環状溝部があり、環状溝部の両側の外側に張り出した支点部とを備え、前記スリーブは、管に外嵌する円筒形をしており、前記環状溝部内面のそれぞれの端部側には、該スリーブの内周に張り出すように段差部を有し、前記スリーブの外周面は、基部から所定距離だけ端部に向かったところを起点に、基部から端部に向かって外径が漸次小さくなるテーパ形状をなす部位を有してなる金属製の部材であり、
前記ナットの内周面は、内径が一端から他端に向かって一端から所定の距離まで漸次小さくなるテーパ形状をなす、かしめ継手である圧着式管継手を圧着する工具であり、
グリップ型工具本体の端部に該グリップ型工具本体と交差する方向へ延びるよう伸縮自在に設置された圧着ユニットと、該圧着ユニットの伸縮部に互いに近接・離反自在に且つそれぞれ着脱自在に取り付けられる第一支持具及び第二支持具とを備え、
インサート部材が挿入された管の接合端部外面にナット及びジョイント部材を嵌装し、該ナット及びジョイント部材を前記第一支持具及び第二支持具間にセットしつつ該第一支持具及び第二支持具で管を支えた状態で、前記圧着ユニットを収縮させることによりナットを管軸線方向へ移動させてジョイント部材外面に嵌着し、前記管の接合端部にジョイント部材を気密接合する圧着式管継手用圧着工具において、
前記第一支持具は、前記管の半径方向へ互いに近接・離反自在で且つ径が異なる複数の管を挟持するよう支持自在な第一スライドブロック機構を備え、
前記第二支持具は、前記管の半径方向へ互いに近接・離反自在で且つ径が異なる複数の管を挟持するよう支持自在な第二スライドブロック機構を備えたことを特徴とする圧着式管継手用圧着工具。
An insert member made of high-strength steel that is inserted into the inner surface of the joint end portion of a pipe made of a malleable metal material, and a malleable metal material that is fitted to the outer surface of the joint end portion of the pipe. The joint member and a force directed radially inward from the inner circumferential surface to the outer surface of the end portion of the joint member are moved in the tube axis direction to cause a compressive force to act on the outer surface of the end portion of the joint member. With a nut that is a high-strength steel that is embedded inside itself while deforming the outer surface of the member end,
The joint member is connected by inserting joint ends of two pipes at both ends of an annular groove portion that connects the two pipes in communication with each other with the joint ends of the two pipes facing each other. The sleeve has a circular groove portion on the base side of the sleeve, and includes fulcrum portions projecting outward on both sides of the annular groove portion, and the sleeve has a cylindrical shape that is externally fitted to the pipe. The inner surface of each of the annular groove portions has a stepped portion projecting from the inner periphery of the sleeve, and the outer peripheral surface of the sleeve starts from the base portion toward the end by a predetermined distance. In addition, a metal member having a portion having a tapered shape in which the outer diameter gradually decreases from the base portion toward the end portion,
The inner peripheral surface of the nut is a tool for crimping a crimped pipe joint, which is a caulking joint, in which the inner diameter gradually decreases from one end to a predetermined distance from one end to the other end,
A crimping unit that is telescopically installed at the end of the grip type tool main body so as to extend in a direction intersecting the grip type tool main body, and a telescopic part of the crimping unit are attached to and removable from each other so as to be close to and away from each other. A first support and a second support;
A nut and a joint member are fitted on the outer surface of the joint end of the pipe into which the insert member is inserted, and the nut and the joint member are set between the first support and the second support while the first support and the first support With the pipe supported by the two support tools, the crimping unit is contracted to move the nut in the pipe axis direction and fit onto the outer surface of the joint member, and the joint member is hermetically joined to the joint end of the pipe. In type crimping tool
The first support includes a first slide block mechanism that is capable of supporting a plurality of tubes that are close to and away from each other in the radial direction of the tube and that have different diameters.
The second support tool includes a second slide block mechanism that is capable of supporting a plurality of pipes that are close to and away from each other in the radial direction of the pipe and that have different diameters. Crimping tool.
前記圧着ユニットは、前記グリップ型工具本体の上部に水平方向へ延びるよう設置されたシリンダ本体と、該シリンダ本体から軸線方向へ伸縮自在に延びるロッド部とからなる電動油圧シリンダである請求項1記載の圧着式管継手用圧着工具。   2. The electro-hydraulic cylinder, wherein the crimping unit is composed of a cylinder main body installed to extend in the horizontal direction above the grip-type tool main body, and a rod portion that extends from the cylinder main body in an axial direction. Crimping tool for crimping pipe fittings. 前記第一支持具は、前記シリンダ本体の先端部に着脱自在に装着される第一脚部と、該第一脚部上に一体に設けられる第一台座部と、該第一台座部上に配設される前記第一スライドブロック機構とを備え、
該第一スライドブロック機構は、前記第一台座部上に管の半径方向へ延びるよう敷設される第一ガイドレールと、該第一ガイドレールに沿って互いに近接・離反自在に配設され且つ内面側に前記ナット或いはジョイント部材が収まる第一スライドブロックと、該第一スライドブロックの内面側に突設され且つ前記ナットの端面或いは前記ジョイント部材外周に張り出す支点部間に形成される環状溝部に係合する第一突条とを備えた請求項2記載の圧着式管継手用圧着工具。
The first support member includes a first leg portion that is detachably attached to a distal end portion of the cylinder body, a first pedestal portion that is integrally provided on the first leg portion, and a first pedestal portion on the first pedestal portion. The first slide block mechanism disposed,
The first slide block mechanism includes a first guide rail laid on the first pedestal portion so as to extend in a radial direction of the pipe, and a first guide rail that is disposed so as to be close to and away from each other along the first guide rail. A first slide block in which the nut or the joint member is accommodated on the side, and an annular groove formed between an end surface of the nut and a fulcrum projecting to the outer periphery of the joint member and projecting on the inner surface side of the first slide block The crimping tool for crimping type pipe joints according to claim 2, further comprising a first protrusion to be engaged.
前記第二支持具は、前記ロッド部の先端部に着脱自在に装着される第二脚部と、該第二脚部上に一体に設けられる第二台座部と、該第二台座部上に配設される前記第二スライドブロック機構とを備え、
該第二スライドブロック機構は、前記第二台座部上に管の半径方向へ延びるよう敷設される第二ガイドレールと、該第二ガイドレールに沿って互いに近接・離反自在に配設され且つ内面側に前記ナット或いはジョイント部材が収まる第二スライドブロックと、該第二スライドブロックの内面側に突設され且つ前記ナットの端面或いは前記ジョイント部材外周に張り出す支点部間に形成される環状溝部に係合する第二突条とを備えた請求項2又は3記載の圧着式管継手用圧着工具。
The second support member includes a second leg portion that is detachably attached to a tip end portion of the rod portion, a second pedestal portion that is integrally provided on the second leg portion, and a second pedestal portion. The second slide block mechanism disposed,
The second slide block mechanism includes a second guide rail laid on the second pedestal portion so as to extend in the radial direction of the pipe, and an inner surface that is disposed so as to be close to and away from each other along the second guide rail. A second slide block in which the nut or the joint member is accommodated on the side, and an annular groove formed between an end surface of the nut or a fulcrum projecting to the outer periphery of the joint member and projecting on the inner surface side of the second slide block The crimping tool for crimp type pipe joints according to claim 2 or 3, further comprising a second protrusion to be engaged.
前記第一スライドブロック機構は、径が異なる複数の管に対応させて前記第一スライドブロックの近接・離反方向における停止位置を段階的に規定する第一ストッパを備え、
前記第二スライドブロック機構は、径が異なる複数の管に対応させて前記第二スライドブロックの近接・離反方向における停止位置を段階的に規定する第二ストッパを備えた請求項3又は4記載の圧着式管継手用圧着工具。
The first slide block mechanism includes a first stopper that gradually defines a stop position in the approach / separation direction of the first slide block corresponding to a plurality of pipes having different diameters,
The said 2nd slide block mechanism was equipped with the 2nd stopper which prescribes | regulates the stop position in the approach / separation direction of the said 2nd slide block corresponding to several pipes from which a diameter differs. Crimping tool for crimping fittings.
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Publication number Priority date Publication date Assignee Title
CN107952895A (en) * 2017-12-05 2018-04-24 罗有志 A kind of pipeline joint crimping tool
CN114406112A (en) * 2021-12-15 2022-04-29 江苏博凡科精密五金科技有限公司 Automatic hardware fitting machining device
CN116749545A (en) * 2023-08-21 2023-09-15 湖南迈途机电设备有限公司 Rubber tube buckling device and buckling process

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CN107952895A (en) * 2017-12-05 2018-04-24 罗有志 A kind of pipeline joint crimping tool
CN114406112A (en) * 2021-12-15 2022-04-29 江苏博凡科精密五金科技有限公司 Automatic hardware fitting machining device
CN114406112B (en) * 2021-12-15 2024-02-20 江苏博凡科精密五金科技有限公司 Automatic processing device for hardware fittings
CN116749545A (en) * 2023-08-21 2023-09-15 湖南迈途机电设备有限公司 Rubber tube buckling device and buckling process
CN116749545B (en) * 2023-08-21 2023-11-03 湖南迈途机电设备有限公司 Rubber tube buckling device and buckling process

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