JP2001277038A - Tube cutting device - Google Patents
Tube cutting deviceInfo
- Publication number
- JP2001277038A JP2001277038A JP2000088936A JP2000088936A JP2001277038A JP 2001277038 A JP2001277038 A JP 2001277038A JP 2000088936 A JP2000088936 A JP 2000088936A JP 2000088936 A JP2000088936 A JP 2000088936A JP 2001277038 A JP2001277038 A JP 2001277038A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- cutting
- along
- longitudinal direction
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Sawing (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、老朽化した既設の
ねずみ鋳鉄管などにＰＥ管（ポリエチレン管）などを挿
入する入替工法において、施工後にＰＥ管の分岐工事が
必要な場合に、その分岐箇所の鋳鉄管を切削するための
管切断装置に関する。BACKGROUND OF THE INVENTION The present invention relates to a replacement method for inserting a PE pipe (polyethylene pipe) or the like into an aged gray cast iron pipe or the like. The present invention relates to a pipe cutting device for cutting a cast iron pipe at a location.
【０００２】[0002]
【従来の技術】従来、この種の管切断装置としては、鋳
鉄管の周りを回転させ、鋳鉄管を周方向に沿って切削す
る管切断具を設けたものがあった。2. Description of the Related Art Conventionally, as a pipe cutting apparatus of this type, there has been provided a pipe cutting tool which rotates around a cast iron pipe and cuts the cast iron pipe along a circumferential direction.
【０００３】[0003]
【発明が解決しようとする課題】分岐箇所の鋳鉄管を切
削してその破片を除去するためには、図１１に示すよう
に、鋳鉄管を管周方向４だけでなく管長手方向３に沿っ
て切削する必要があるが、上述した従来の管切断装置に
よれば、鋳鉄管を管周方向４に切削する機能しか有して
いないため、管長手方向３に沿った切削作業には市販の
グラインダーやエアーカッターなどの管切断具を手に持
った作業員による手持ち作業での切削に頼らざるを得な
かった。しかしながら、作業員による手持ち作業による
と、手ブレなどにより切削面が蛇行し易くなるため、管
切断具の切削刃の耐久性が落ち易くなるといった問題
と、切削長さが長い場合、作業時間が長くなるため、管
切断具の重量を支えたまま安定した切削作業、例えば、
上記の手ブレに加えて、切削深さを一定に保ちつつ切削
するなどといったことが困難になるだけでなく、疲労に
よる危険がともない易いものとなっていた。As shown in FIG. 11, in order to cut the cast iron pipe at the branch point and remove its debris, the cast iron pipe must be cut not only along the pipe circumferential direction 4 but also along the pipe longitudinal direction 3. However, according to the above-described conventional pipe cutting device, only the function of cutting the cast iron pipe in the pipe circumferential direction 4 is used. Workers holding pipe cutting tools such as grinders and air cutters had to rely on hand-held cutting. However, according to the hand-held work by the operator, the cutting surface tends to meander due to camera shake, etc., so that the durability of the cutting blade of the pipe cutting tool tends to decrease, and when the cutting length is long, the working time is For longer, stable cutting work while supporting the weight of the pipe cutting tool, for example,
In addition to the above-mentioned camera shake, not only is it difficult to perform cutting while keeping the cutting depth constant, but also there is a danger of fatigue.
【０００４】従って、本発明の目的は、上記問題点を解
消し、作業員による手持ち作業によらず、鋳鉄管の長手
方向に沿ってスライドさせて、鋳鉄管を管長手方向に沿
って切削する管切断具を設けた管切断装置を提供すると
ころにある。Accordingly, an object of the present invention is to solve the above-mentioned problems, and to cut the cast iron pipe along the longitudinal direction of the cast iron pipe by sliding along the longitudinal direction of the cast iron pipe without using a hand-held operation by an operator. An object of the present invention is to provide a pipe cutting device provided with a pipe cutting tool.
【０００５】[0005]
【課題を解決するための手段】〔構成〕請求項１の発明
の特徴構成は図１〜４に例示するごとく、管壁を管長手
方向３に沿って切削可能な円盤状切削刃５を駆動回転自
在に備えた管切断具７と、前記管切断具７が、前記切削
刃５で前記管壁を管長手方向３に沿って切削しながら、
管長手方向３に沿って移動するように案内する案内具８
と、前記案内具８を管２に着脱自在に固定する固定具９
とを設けてあるところにある。[Structure] As shown in FIGS. 1 to 4, a disc-shaped cutting blade 5 capable of cutting a pipe wall along a pipe longitudinal direction 3 is provided. A pipe cutting tool 7 rotatably provided, while the pipe cutting tool 7 cuts the pipe wall along the pipe longitudinal direction 3 with the cutting blade 5,
A guide 8 for guiding the tube to move along the longitudinal direction 3 of the tube
And a fixture 9 for detachably fixing the guide 8 to the pipe 2.
Is provided.
【０００６】請求項２の発明の特徴構成は図１〜４，１
０に例示するごとく、前記切削刃５の前記管壁に対する
切削深さを規制する規制具１０を設けてあるところにあ
る。[0006] The characteristic structure of the invention of claim 2 is shown in Figs.
As exemplified in FIG. 0, a restricting tool 10 for restricting a cutting depth of the cutting blade 5 with respect to the pipe wall is provided.
【０００７】請求項３の発明の特徴構成は図５，６に例
示するごとく、前記案内具８を、前記管２の外周面に沿
って管長手方向３に転動自在な複数の車輪１１を設けて
構成し、前記固定具９を、前記複数の車輪１１で前記管
２の外周面を径方向から挟み込むように、それらの車輪
１１の車輪支持部１２を管周方向４に間隔を隔てて固定
する枠体１３を設けて構成し、前記管切断具７を前記枠
体１３に支持してあるところにある。As shown in FIGS. 5 and 6, the guide 8 is provided with a plurality of wheels 11 which can roll in the longitudinal direction 3 of the tube 2 along the outer peripheral surface of the tube 2. The fixing device 9 is provided so that the wheel supporting portions 12 of the wheels 11 are spaced apart in the tube circumferential direction 4 so that the outer peripheral surface of the tube 2 is sandwiched between the plurality of wheels 11 in the radial direction. A frame 13 to be fixed is provided, and the pipe cutting tool 7 is supported by the frame 13.
【０００８】請求項４の発明の特徴構成は図５に例示す
るごとく、前記車輪支持部１２を、管周方向４で隣り合
う車輪１１どうしの位置が管長手方向３に沿ってずれる
ように固定してあるところにある。As shown in FIG. 5, the wheel support portion 12 is fixed so that the positions of wheels 11 adjacent to each other in the circumferential direction 4 of the wheel are shifted along the longitudinal direction 3 of the tube. It is where it is.
【０００９】請求項５の発明の特徴構成は図５，６，
８，９に例示するごとく、前記複数の車輪１１を、管長
手方向３に沿って転動する状態と、管周方向４に沿って
転動する状態とに姿勢変更自在に設け、前記切削刃５
を、管長手方向２に沿って切削する状態と、管周方向４
に沿って切削する状態とに姿勢変更自在に設けてあると
ころにある。The feature of the invention according to claim 5 is shown in FIGS.
As illustrated in FIGS. 8 and 9, the plurality of wheels 11 are provided so as to be freely changeable in attitude between a state of rolling along the pipe longitudinal direction 3 and a state of rolling along the pipe circumferential direction 4, and the cutting blade is provided. 5
Is cut along the pipe longitudinal direction 2 and the pipe circumferential direction 4
In a state in which the posture can be freely changed to a state in which cutting is performed along the line.
【００１０】尚、上述のように、図面との対照を便利に
するために符号を記したが、該記入により本発明は添付
図面の構成に限定されるものではない。[0010] As described above, the reference numerals are used for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.
【００１１】〔作用及び効果〕請求項１の発明により、
管壁を管長手方向に沿って切削可能な円盤状切削刃を駆
動回転自在に備えた管切断具と、前記管切断具が、前記
切削刃で前記管壁を管長手方向に沿って切削しながら、
管長手方向に沿って移動するように案内する案内具と、
前記案内具を管に着脱自在に固定する固定具とを設けて
あるから、安全且つ、容易に管軸方向に沿った管の切削
作業が可能となる。つまり、前記固定具によって管の切
削作業が必要な箇所に前記案内具を固定し、その案内具
により前記管切断具を管長手方向に沿って移動させるこ
とができるから、従来の作業員による手持ちでの切削作
業に比して、安定した切削作業を行うことができ、切削
面が蛇行するのを防止することができる。その結果、管
長手方向に沿った管の切削作業にともなう切削刃の耐久
性を向上させることができると共に、管の切削作業を安
全に行うことができるため、切削作業の作業性を向上さ
せることができるようになった。[Operation and Effect] According to the first aspect of the present invention,
A pipe cutting tool provided with a disk-shaped cutting blade capable of driving and rotating a disc-shaped cutting blade capable of cutting a pipe wall along the pipe longitudinal direction, and the pipe cutting tool cuts the pipe wall along the pipe longitudinal direction with the cutting blade. While
A guide that guides the user to move along the longitudinal direction of the pipe,
Since the fixture for detachably fixing the guide to the pipe is provided, the pipe can be cut safely and easily along the pipe axis direction. That is, since the guide is fixed to a place where a pipe cutting operation is required by the fixture, and the guide can be used to move the pipe cutting tool along the longitudinal direction of the pipe, a conventional operator can hold the pipe cutter. As compared with the cutting operation in the above, a stable cutting operation can be performed, and the cutting surface can be prevented from meandering. As a result, it is possible to improve the durability of the cutting blade associated with the pipe cutting operation along the pipe longitudinal direction, and to perform the pipe cutting operation safely, thereby improving the workability of the cutting operation. Is now available.
【００１２】請求項２の発明によれば、請求項１の発明
による作用効果を叶えることができるのに加えて、前記
切削刃の前記管壁に対する切削深さを規制する規制具を
設けてあるから、切削深さを一定に保つことが容易とな
る。つまり、従来のごとく作業員による手持ちでの切削
作業によるものだと、管切断具の重量を支えた作業にな
るため、特に、切削長さが長い場合において、切削深さ
を一定に保つことは非常に困難なものであり、例えば、
鋳鉄管を切削して前記鋳鉄管内に挿入したＰＥ管を露出
させようとしたときに、管切断具の重量を支えきれずに
深く切削しすぎて前記ＰＥ管をキズつけてしまう可能性
があり、前記ＰＥ管の補修作業が新たに発生するといっ
た虞を生じる場合があるが、本件のものだと前記規制具
により管切断具の切削深さが規制されているため、切削
長さが長い場合においても切削深さを一定に保つことが
できるから、深く切削し過ぎるといったことがなく、鋳
鉄管内に挿入したＰＥ管を露出させようとした場合にお
いても、前記ＰＥ管をキズつけてしまうといったことが
防止される。その結果、深く切削し過ぎて補修作業が発
生するといったことはなく、管壁を所望の切削深さに正
確、且つ、安全に切削することができるため、切削作業
の作業性を向上させることができるようになった。According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, the restricting tool for restricting the cutting depth of the cutting blade with respect to the pipe wall is provided. Therefore, it is easy to keep the cutting depth constant. In other words, the conventional hand-held cutting work by the operator is a work that supports the weight of the pipe cutting tool, so it is difficult to keep the cutting depth constant, especially when the cutting length is long. It is very difficult, for example,
When trying to expose the PE pipe inserted into the cast iron pipe by cutting the cast iron pipe, there is a possibility that the PE pipe may be scratched by cutting too deeply because the weight of the pipe cutting tool cannot be supported. However, there is a possibility that the repair work of the PE pipe may newly occur, but in the case of this case, since the cutting depth of the pipe cutting tool is regulated by the regulating tool, the cutting length is long. Since the cutting depth can be kept constant even in the case, the PE pipe is not cut too deeply, and even when the PE pipe inserted into the cast iron pipe is to be exposed, the PE pipe is scratched. Is prevented. As a result, the repair work does not occur due to excessively deep cutting, and the pipe wall can be accurately and safely cut to a desired cutting depth, thereby improving the workability of the cutting work. Now you can.
【００１３】請求項３の発明によれば、請求項１又は２
の発明による作用効果を叶えることができるのに加え
て、前記案内具を、前記管の外周面に沿って管長手方向
に転動自在な複数の車輪を設けて構成し、前記固定具
を、前記複数の車輪で前記管の外周面を径方向から挟み
込むように、それらの車輪の車輪支持部を管周方向に間
隔を隔てて固定する枠体を設けて構成し、前記管切断具
を前記枠体に支持してあるから、前記管切断具を、固定
具ごと管長手方向に沿って移動案内することができる。
つまり、前記複数の車輪で管の外周面を挟み込む状態に
支持した枠体を設けて構成した固定具に管切断具が支持
されているので、前記枠体を管長手方向に沿って移動さ
せると、前記複数の車輪が転動することによって、前記
管切断具が固定具に支持されたまま管の長手方向に沿っ
て案内されることになり、管長手方向に沿った切削を行
うことができる。また、例えば、固定具によって管の切
削作業が必要な箇所に案内具を固定し、その案内具によ
り管切断具を管長手方向に沿って移動させる構成のもの
だと、切削長さが長くなった場合、固定具を取付け直す
必要が生じると共に、案内具と固定具とが別部材で形成
されているため部品コストが高くなるが、本件のものだ
と、管に対して前記固定具を一度セッテイングするだけ
で、管長手方向における切削長さに関係なく管長手方向
への移動案内が可能となるだけでなく、案内具と固定具
における部品の一部共有化を行うことができる。その結
果、部品コストを下げることができると共に、固定具の
取付け位置の変更に伴う固定具の付け替え作業が不要と
なるため、容易、且つ、安全に管の長手方向に沿った管
の切削作業を行うことができ、切削作業の作業性を向上
させることができるようになった。According to the invention of claim 3, claim 1 or 2
In addition to being able to achieve the function and effect of the invention, the guide is provided by providing a plurality of wheels that can roll in the pipe longitudinal direction along the outer peripheral surface of the pipe, and the fixing tool is provided. In order to sandwich the outer peripheral surface of the pipe from the radial direction with the plurality of wheels, a frame body for fixing the wheel support portions of the wheels at intervals in the pipe circumferential direction is provided, and the pipe cutting tool is provided. Since the pipe cutting tool is supported by the frame, the pipe cutting tool together with the fixing tool can be moved and guided along the pipe longitudinal direction.
That is, since the pipe cutting tool is supported by a fixture configured by providing a frame supporting the outer peripheral surface of the pipe between the plurality of wheels, the frame is moved along the pipe longitudinal direction. Since the plurality of wheels roll, the pipe cutting tool is guided along the longitudinal direction of the pipe while being supported by the fixing tool, so that cutting along the pipe longitudinal direction can be performed. . In addition, for example, if a guide is fixed to a place where a pipe cutting operation is required by a fixing tool, and the pipe cutting tool is moved along the pipe longitudinal direction by the guide, the cutting length becomes longer. In this case, it is necessary to re-attach the fixture, and since the guide and the fixture are formed as separate members, the cost of parts increases, but in the case of the present case, the fixture is once attached to the pipe. Just by setting, not only the moving guide in the longitudinal direction of the pipe can be performed irrespective of the cutting length in the longitudinal direction of the pipe, but also a part of parts of the guide and the fixture can be partially shared. As a result, it is possible to reduce the cost of parts and to eliminate the necessity of replacing the fixing device with the change of the mounting position of the fixing device, thereby easily and safely cutting the tube along the longitudinal direction of the tube. Can be performed, and the workability of the cutting operation can be improved.
【００１４】請求項４の発明によれば、請求項３の発明
による作用効果を叶えることができるのに加えて、前記
車輪支持部を、管周方向で隣り合う車輪どうしの位置が
管長手方向に沿ってずれるように固定してあるから、前
記管切断具を、管周方向及び管長手方向に沿って安定移
動させることができる。つまり、例えば、前記複数の車
輪支持部を、管周方向で隣り合う車輪どうしの位置が管
長手方向に沿ってずれることなく一列に配置されたもの
だと、管と車輪の接点を中心にした管長手方向への揺動
がおこり易くなるため、前記固定具に取付けた前記管切
断具の支持姿勢が不安定なものとなって、前記管切断具
を管周方向及び管長手方向に沿って安定移動させること
ができなくなるが、本件のものだと管周方向で隣り合う
車輪どうしの位置が管の長手方向に沿ってずれるように
固定してあるから、管長手方向に巾を有した支持となる
ため、管長手方向への揺動が抑制され易くなり、枠体に
取付けた前記管切断具の支持姿勢を安定させることがで
きる。その結果、前記管切断具を管周方向及び管長手方
向に沿って安定移動させることができるため、切削作業
の作業性を向上させることができるようになった。According to the fourth aspect of the present invention, in addition to the effect of the third aspect of the present invention, the wheel supporting portion may be arranged such that the positions of adjacent wheels in the pipe circumferential direction are in the pipe longitudinal direction. , The pipe cutting tool can be stably moved along the pipe circumferential direction and the pipe longitudinal direction. That is, for example, when the plurality of wheel support portions are arranged in a line without shifting the positions of adjacent wheels in the pipe circumferential direction along the pipe longitudinal direction, the contact point between the pipe and the wheel is centered. Since the swing in the longitudinal direction of the pipe is likely to occur, the supporting posture of the pipe cutting tool attached to the fixture becomes unstable, and the pipe cutting tool is moved along the pipe circumferential direction and the pipe longitudinal direction. Although it cannot be moved stably, in the case of the present case, since the positions of wheels adjacent to each other in the circumferential direction of the pipe are fixed so as to be shifted along the longitudinal direction of the pipe, a support having a width in the longitudinal direction of the pipe. Therefore, the swing in the longitudinal direction of the pipe is easily suppressed, and the supporting posture of the pipe cutting tool attached to the frame can be stabilized. As a result, the pipe cutting tool can be stably moved along the pipe circumferential direction and the pipe longitudinal direction, so that the workability of the cutting operation can be improved.
【００１５】請求項５の発明によれば、請求項３又は４
の発明による作用効果を叶えることができるのに加え
て、前記複数の車輪を、管長手方向に沿って転動する状
態と、管周方向に沿って転動する状態とに姿勢変更自在
に設け、前記切削刃を、管長手方向に沿って切削する状
態と、管周方向に沿って切削する状態とに姿勢変更自在
に設けてあるから、管長手方向に沿った切削作業と管周
方向に沿った切削作業とを一つの装置で兼用化できると
共に、切削作業の向き変更が容易となる。つまり、例え
ば、管長手方向沿って移動させて切削する管切断装置と
管周方向に沿って移動させて切削する管切断装置を別々
に設けたものだと、次の切削作業に移る前に先の管切断
装置を取り外してから別の管切断装置を取付けて別方向
の切削作業を行う必要があるため、作業に手間がかかる
ものであるが、前記切削刃を、管長手方向に沿って切削
する状態に姿勢変更すると共に、前記複数の車輪を、管
長手方向に沿って転動する状態に姿勢変更すると、管長
手方向に沿って前記切削刃を移動案内することができる
ようになる。また、前記切削刃を、管周方向に沿って切
削する状態に姿勢変更すると共に、前記複数の車輪を、
管周方向に沿って転動する状態に姿勢変更すると、管周
方向に沿って前記切削刃を移動案内することができるよ
うになるため、切削作業の向き変更が容易となると共
に、管長手方向に沿って移動させて切削する管切断装置
と管周方向に沿って移動させて切削する管切断装置を一
つの装置で兼用することができる。その結果、車輪や切
削刃の向きを変えるだけの操作で切削作業の方向を変え
ることができるため、切削作業の作業性を向上させるこ
とができるようになった。また、部品を一部兼用化でき
るため切断装置の部品コストを抑制することができると
共に、部品交換に伴うメンテナンスが容易となった。According to the invention of claim 5, according to claim 3 or 4,
In addition to being able to achieve the function and effect of the invention, the plurality of wheels are provided to be freely changeable in attitude between a state of rolling along the pipe longitudinal direction and a state of rolling along the pipe circumferential direction. The cutting blade is provided so that the posture can be freely changed between a state of cutting along the pipe longitudinal direction and a state of cutting along the pipe circumferential direction, so that the cutting operation along the pipe longitudinal direction and the pipe circumferential direction can be performed. Along with the cutting operation, the same device can be shared, and the direction of the cutting operation can be easily changed. In other words, for example, if a pipe cutting device that moves and cuts along the pipe longitudinal direction and a pipe cutting device that moves and cuts along the pipe circumferential direction are provided separately, for example, before moving on to the next cutting operation, Since it is necessary to remove another pipe cutting device and then attach another pipe cutting device to perform a cutting operation in another direction, it takes time and effort, but the cutting blade is cut along the pipe longitudinal direction. When the posture is changed to a state in which the cutting wheels are rolled along with the longitudinal direction of the pipe, the cutting blade can be moved and guided along the longitudinal direction of the pipe. Further, while changing the posture of the cutting blade to a state of cutting along the pipe circumferential direction, the plurality of wheels,
When the posture is changed to a state of rolling along the circumferential direction of the pipe, the cutting blade can be moved and guided along the circumferential direction of the pipe. A pipe cutting device for cutting by moving along the pipe and a pipe cutting device for moving and cutting along the circumferential direction of the pipe can be shared by one device. As a result, the direction of the cutting operation can be changed only by changing the directions of the wheels and the cutting blade, so that the workability of the cutting operation can be improved. In addition, since the parts can be partially used, the cost of the parts of the cutting device can be reduced, and the maintenance accompanying the replacement of the parts is facilitated.
【００１６】[0016]
【発明の実施の形態】以下に本発明の管切断装置の一実
施形態を図面に基づいて説明する。本発明における管切
断装置１は、例えば、老朽化した既設のねずみ鋳鉄管２
などにＰＥ管（ポリエチレン管）Ｐなどを挿入する入替
工法において、施工後にＰＥ管Ｐの分岐工事が必要な場
合に、その分岐箇所の鋳鉄管２を切削する切削作業等に
使用される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a pipe cutting device according to the present invention will be described below with reference to the drawings. The pipe cutting apparatus 1 according to the present invention is, for example, an old gray cast iron pipe 2
In a replacement method of inserting a PE pipe (polyethylene pipe) P or the like into a pipe or the like, when branching work of the PE pipe P is required after construction, it is used for a cutting operation or the like for cutting the cast iron pipe 2 at the branch point.
【００１７】本発明にかかる管切断装置１は、管壁を管
長手方向３に沿って切削可能な円盤状切削刃５を駆動回
転自在に備えた管切断具７と、管切断具７が、切削刃５
で管壁を管長手方向３に沿って切削しながら、管長手方
向３に沿って移動するように案内する案内具８と、案内
具８を管２に着脱自在に固定する固定具９とを設けて構
成されている。The pipe cutting device 1 according to the present invention comprises: a pipe cutting tool 7 having a disk-shaped cutting blade 5 capable of cutting a pipe wall along the pipe longitudinal direction 3 so as to be driven and rotatable; Cutting blade 5
The guide 8 guides the pipe wall to move along the pipe longitudinal direction 3 while cutting the pipe wall along the pipe longitudinal direction 3, and the fixing tool 9 for detachably fixing the guide 8 to the pipe 2. It is provided and configured.
【００１８】〔第１実施形態〕第１実施形態の管切断装
置１における管切断具７は、図１〜３に示すように、回
転カッター刃６（円盤状切削刃５の一例）を取付けた電
動モーター１６と、その電動モーター１６を着脱自在に
取付け可能な基板１７とからなり、基板１７の略中央部
には回転カッター刃６を基板１７よりも下方に突出させ
るための開口部１８が形成されていると共に、基板１７
下面の四隅にはスライドロッド２８を貫通させてスライ
ド移動自在に形成してある貫通孔１９を設けた基板支持
部２０が設けられている。[First Embodiment] As shown in FIGS. 1 to 3, a pipe cutting tool 7 in a pipe cutting apparatus 1 according to a first embodiment has a rotary cutter blade 6 (an example of a disc-shaped cutting blade 5) attached thereto. An electric motor 16 and a substrate 17 to which the electric motor 16 can be removably attached are provided. An opening 18 is formed at a substantially central portion of the substrate 17 for projecting the rotary cutter blade 6 below the substrate 17. And the substrate 17
At four corners of the lower surface, there are provided substrate support portions 20 having through holes 19 formed so as to be slidable through a slide rod 28.
【００１９】前記固定具９は、固定体２１と、端部にチ
ェーン２２を取付けた第１アジャストボルト２４と、端
部にチェーン２２を引っかけて係止できる係止片２６を
有した第２アジャストボルト２５とを備えて形成（固定
具９の一例）されており、この固定具９を使用する際に
は二つの固定具９をセットにして使用する。また、固定
体２１の上面には、固定体２１の長手方向に沿って上下
に貫通するアジャストボルト挿通用の長穴２７が夫々の
固定体２１に形成されている。The fixture 9 has a fixed body 21, a first adjusting bolt 24 having a chain 22 attached to an end thereof, and a second adjusting piece 26 having an end capable of hooking the chain 22 to be engaged therewith. It is formed with a bolt 25 (an example of the fixing tool 9). When using the fixing tool 9, two fixing tools 9 are used as a set. On the upper surface of the fixed bodies 21, long holes 27 for adjusting bolt insertion penetrating vertically along the longitudinal direction of the fixed bodies 21 are formed in each of the fixed bodies 21.
【００２０】前記案内具８は、鋳鉄管２上に二つの固定
体２１を間隔を開けて、管長手方向３に対して固定体２
１の長手方向を直交するように載置したときに二つの固
定体２１の対向面どうしにわたって接続した二本のスラ
イドロッド２８（案内具８の一例）により形成されてお
り、このスライドロッド２８を基板支持部２０のスライ
ドロッド貫通孔１９に挿通させて基板１７をスライドロ
ッド２８に沿って案内可能に構成してある。The guide 8 has two fixed bodies 21 spaced apart from each other on the cast iron pipe 2 so that the fixed bodies 2
1 is formed by two slide rods 28 (an example of the guide tool 8) connected across the opposing surfaces of the two fixed bodies 21 when they are placed so that their longitudinal directions are orthogonal to each other. The substrate 17 can be guided along the slide rod 28 by being inserted into the slide rod through hole 19 of the substrate support 20.
【００２１】次に第１実施形態の管切断装置１による鋳
鉄管２を長手方向に沿って切削する切削作業について、
その流れに沿って説明する。 １）管切断装置１に設けた一対の固定具９間に、鋳鉄管
２の長手方向に沿って切削したい箇所がくるように固定
具９を鋳鉄管２上に載置し、両固定具９共に、アジャス
トボルト挿通用の長穴２７に挿通させてナット２３で抜
け止め支持してある第１、第２アジャストボルト２４，
２５のうち、第１アジャストボルト２４に設けたチェー
ン２２を、鋳鉄管２の外方に巻き付けた後に第２アジャ
ストボルト２５に形成の係止片２６に引っかけてナット
２３を締め付けて鋳鉄管２に対して固定具９を位置固定
する（図３，４参照）。このアジャストボルト挿通用の
長穴２７は、図３，４に示すように、各種の管径に応じ
て第１、第２アジャストボルト２４，２５の位置を変更
できるように構成されたものである。 ２）次に、一対の固定体２１間に設けた二本のスライド
ロッド２８によりスライド移動自在に設けた管切断具７
を、鋳鉄管２上の切削箇所端部位置に位置させ、基板１
７上に取付けた電動モーター１６を駆動回転させて、電
動モーター１６に備えた回転カッター刃６を上下調節機
構２９により下降させて、切削を開始する。そして、設
定深さに達した後、作業者による手動操作で管切断具７
を管長手方向３に沿ったスライド移動により、鋳鉄管２
を管長手方向３に沿って切削する。このとき、設定深さ
に達した回転カッター刃６の位置を上下調節機構２９に
より固定することによって、切削深さを規制する規制具
１０として利用できる（図１，２参照）。切削作業終了
後、両固定具９の固定を解除して管切断装置１を鋳鉄管
２から撤去する。Next, a cutting operation for cutting the cast iron pipe 2 along the longitudinal direction by the pipe cutting device 1 of the first embodiment will be described.
Explanation will be given along the flow. 1) The fixture 9 is placed on the cast iron pipe 2 so that a portion to be cut along the longitudinal direction of the cast iron pipe 2 is located between the pair of fixtures 9 provided in the pipe cutting device 1. Both of the first and second adjustment bolts 24, which are inserted into the elongated holes 27 for inserting adjustment bolts and are supported by the nuts 23 so as not to come off.
25, the chain 22 provided on the first adjust bolt 24 is wound around the outside of the cast iron tube 2 and then hooked on a locking piece 26 formed on the second adjust bolt 25 to tighten the nut 23 to form the cast iron tube 2. On the other hand, the position of the fixing tool 9 is fixed (see FIGS. 3 and 4). As shown in FIGS. 3 and 4, the elongated holes 27 for inserting the adjustment bolts are configured so that the positions of the first and second adjustment bolts 24 and 25 can be changed according to various pipe diameters. . 2) Next, a pipe cutting tool 7 slidably provided by two slide rods 28 provided between a pair of fixed bodies 21.
Is positioned at the end of the cutting location on the cast iron pipe 2 and the substrate 1
The electric motor 16 mounted on the motor 7 is driven to rotate, and the rotary cutter blade 6 provided on the electric motor 16 is lowered by the vertical adjustment mechanism 29 to start cutting. After reaching the set depth, the pipe cutting tool 7 is manually operated by an operator.
Of the cast iron pipe 2 by sliding movement along the pipe longitudinal direction 3.
Is cut along the pipe longitudinal direction 3. At this time, by fixing the position of the rotary cutter blade 6 that has reached the set depth by the vertical adjustment mechanism 29, the rotary cutter blade 6 can be used as a restricting tool 10 that regulates the cutting depth (see FIGS. 1 and 2). After the cutting operation is completed, the fixing of the two fixtures 9 is released, and the pipe cutting device 1 is removed from the cast iron pipe 2.
【００２２】〔第２実施形態〕第２実施形態における管
切断装置１は、図５，６に示すように、案内具８を、管
２の外周面に沿って管長手方向３に転動自在な複数の車
輪１１を設けて構成し、固定具９を、複数の車輪１１で
管２の外周面を径方向から挟み込むように、それらの車
輪１１の車輪支持部１２を管周方向４に間隔を隔てて固
定する枠体１３を設けて構成し、管切断具７を枠体１３
に支持してある。[Second Embodiment] In a pipe cutting device 1 according to a second embodiment, as shown in FIGS. 5 and 6, a guide 8 can be rolled in the pipe longitudinal direction 3 along the outer peripheral surface of the pipe 2. A plurality of wheels 11 are provided, and the fixture 9 is spaced from the wheel supporting portions 12 in the pipe circumferential direction 4 such that the outer peripheral surface of the pipe 2 is sandwiched between the plurality of wheels 11 in the radial direction. The pipe cutting tool 7 is provided with a frame 13 that is fixed with the frame 13 therebetween.
It is supported by.
【００２３】前記管切断具７は、図５，６，８，９に示
すように、回転カッター刃６を取付けた電動モーター１
６と、その電動モーター１６を、着脱自在、且つ、管長
手方向３に沿って切削する状態と、管周方向４に沿って
切削する状態とに９０°向き変更自在に取付け可能な基
板３０とからなり、基板３０には回転カッター刃６を基
板３０よりも下方に突出させるための開口部が形成され
ており、その基板３０の一端部４１は枠体１３に対して
連結されていると共に、他端部４２には車輪支持部１２
を介して車輪１１が取付けられている。尚、図中３２は
基板３０に取付けられたラインゲージであり、管２上の
管長手方向３に引かれた切削予定ラインにラインゲージ
３２を合わせながら切削することによって正確に切削作
業を行うことができる。As shown in FIGS. 5, 6, 8 and 9, the pipe cutting tool 7 is an electric motor 1 having a rotary cutter blade 6 mounted thereon.
6 and a substrate 30 that can be detachably attached to the electric motor 16 such that the electric motor 16 can be removably attached by 90 ° in a state of cutting along the pipe longitudinal direction 3 and a state of cutting along the pipe circumferential direction 4. An opening is formed in the substrate 30 to allow the rotary cutter blade 6 to project below the substrate 30, and one end 41 of the substrate 30 is connected to the frame 13, The other end 42 has the wheel support 12
The wheel 11 is attached via the. In the drawing, reference numeral 32 denotes a line gauge attached to the substrate 30. The cutting is performed accurately by performing cutting while aligning the line gauge 32 with a line to be cut drawn in the pipe longitudinal direction 3 on the pipe 2. Can be.
【００２４】前記枠体１３は、図６に示すように、６本
の角パイプ３３（フレームの一例）の端部どうしをボル
ト３４で連結して管２を管周方向４に沿って環状に囲む
状態で着脱自在に連結した管軸方向視６角形を形成して
なり、各々の角パイプ３３の長手方向両端部に形成した
他の角パイプ３３とボルト３４で連結するための複数の
ボルト穴３５に対して、ボルト３４で連結する位置を選
択することによって各種の管径に対応した枠体１３を形
成することができる （図９参照）。このとき、角パイ
プ３３の側面にゴム板（図示しない）を張付けると枠体
１３の振動防止とボルト３４のゆるみ止めになる。As shown in FIG. 6, the frame 13 is formed by connecting the ends of six square pipes 33 (an example of a frame) with bolts 34 to form the pipe 2 in an annular shape along the pipe circumferential direction 4. A plurality of bolt holes for connecting with other square pipes 33 formed at both longitudinal ends of each square pipe 33 by bolts 34 so as to form a hexagonal shape which is detachably connected to the surrounding pipe in a tube axis direction. The frame 13 corresponding to various pipe diameters can be formed by selecting the position to be connected with the bolt 35 with the bolt 34 (see FIG. 9). At this time, when a rubber plate (not shown) is attached to the side surface of the square pipe 33, the vibration of the frame 13 is prevented and the bolt 34 is prevented from loosening.
【００２５】角パイプ側面の長手方向略中央部には、図
７に示すように、ボルト軸３６が設けられており、この
ボルト軸３６に対して車輪支持部１２のボルト挿通孔３
７を挿通させて蝶ナット３８を締め付けることにより、
各角パイプ３３に対して車輪１１が取付け固定されてい
る。車輪支持部１２には、ボルト軸３６を挿通させるた
めのボルト挿通孔３７が、９０°その位置を異ならせて
設けられており、蝶ナット３８を外して車輪支持部１２
をボルト軸３６から外し、９０°向きを変えて取付け直
すことにより車輪１１の向きを管周方向４に沿って転動
する状態（図７（イ）参照）と、管長手方向３に沿って
転動する状態（図７（ロ）参照）とに姿勢変更自在に構
成されている。As shown in FIG. 7, a bolt shaft 36 is provided at a substantially central portion in the longitudinal direction of the side surface of the square pipe.
By inserting 7 and tightening the wing nut 38,
The wheels 11 are mounted and fixed to each square pipe 33. A bolt insertion hole 37 for inserting a bolt shaft 36 is provided in the wheel support portion 12 at a different position by 90 °, and the wing nut 38 is removed to remove the wheel support portion 12.
Is removed from the bolt shaft 36, and the wheel 11 is rolled along the pipe circumferential direction 4 by changing the direction by 90 ° and reattaching (see FIG. 7A), and along the pipe longitudinal direction 3. The posture can be freely changed between a rolling state (see FIG. 7B).
【００２６】また、車輪支持部１２には、図５〜９に示
すように、車輪１１の相対位置を管径方向に沿って変更
自在に、鋳鉄管２に対して突出付勢させるスプリング３
９が設けられているため、枠体１３に製作誤差及び組み
付け誤差等を生じていたとしても、誤差を有した部分に
ある車輪１１の相対位置が変更されて枠体１３の中心軸
を管２の軸芯に合わせることができるから、管周方向４
の切削作業におけるその切削深さを管周方向４において
同じ深さに切削することができる。As shown in FIGS. 5 to 9, a spring 3 for projecting and biasing the cast iron pipe 2 so that the relative position of the wheel 11 can be changed along the pipe diameter direction, as shown in FIGS.
9, the relative position of the wheel 11 in the portion having the error is changed and the center axis of the frame 13 is connected to the tube 2 even if a manufacturing error and an assembly error occur in the frame 13. Can be aligned with the axis of
Can be cut to the same depth in the circumferential direction 4 of the pipe in the cutting operation.
【００２７】前記固定具９は、図６，９に示すように、
複数の角パイプ３３で形成された枠体１３と、各角パイ
プ３３夫々に設けた複数の車輪１１とで形成されてお
り、複数の車輪１１で管２の外周面を径方向から挟み込
んで枠体１３を管２に対して位置固定する働きを有して
いる。また、上記複数の車輪１１は、枠体１３を、管２
の外周面に沿った管長手方向３及び管周方向４に転動案
内する案内具８の働きも有している。このとき、枠体１
３には管切断具７の一端部４１が連結されているため、
その姿勢が固定具９により安定すると共に、案内具８に
よってその姿勢が安定状態のまま管２の外周面に沿った
管周方向４及び管長手方向３に案内される。The fixture 9 is, as shown in FIGS.
The frame 13 is formed by a frame body 13 formed by a plurality of square pipes 33 and a plurality of wheels 11 provided on each of the square pipes 33. It has a function of fixing the position of the body 13 with respect to the tube 2. In addition, the plurality of wheels 11 divide the frame 13 into the pipe 2
It also has the function of a guide 8 for rolling and guiding in the pipe longitudinal direction 3 and the pipe circumferential direction 4 along the outer peripheral surface of the pipe. At this time, frame 1
3 is connected to one end 41 of the pipe cutting tool 7,
The posture is stabilized by the fixture 9, and the guide 8 guides the posture in the tube circumferential direction 4 and the tube longitudinal direction 3 along the outer peripheral surface of the tube 2 while the posture is stable.
【００２８】また、図５，８に示すように、車輪支持部
１２を、管周方向４で隣り合う車輪１１どうしの位置が
管長手方向３に沿ってずれるように取付け固定してある
から、管長手方向３に巾を有した枠体１３の支持となる
ため、管長手方向３への枠体１３の揺動が抑制され易く
なって、枠体１３に取り付けた管切断具７の支持姿勢を
より安定させることができると共に、管２の外周面に沿
った管周方向４及び管長手方向３へ移動案内を安定状態
のまま行うことができる。As shown in FIGS. 5 and 8, the wheel supporting portions 12 are attached and fixed such that the positions of the wheels 11 adjacent to each other in the pipe circumferential direction 4 are shifted along the pipe longitudinal direction 3. Since the frame 13 having a width in the pipe longitudinal direction 3 is supported, the swing of the frame 13 in the pipe longitudinal direction 3 is easily suppressed, and the supporting posture of the pipe cutting tool 7 attached to the frame 13. Can be further stabilized, and the movement guide in the pipe circumferential direction 4 and the pipe longitudinal direction 3 along the outer peripheral surface of the pipe 2 can be performed in a stable state.
【００２９】図５〜９に示すように、前記車輪支持部１
２には、車輪１１の転動に伴って、その車輪１１の外周
面に付着している付着物を掻き取る板スプリング４０
（スクレーパ１５の一例）が設けられているので、車輪
１１と車輪支持部１２との間に土や泥が噛むといったこ
とが防止され、車輪１１の転動が阻止されることがなく
なる。As shown in FIG. 5 to FIG.
2 includes a plate spring 40 for scraping off the attached matter on the outer peripheral surface of the wheel 11 as the wheel 11 rolls.
Since (an example of the scraper 15) is provided, it is possible to prevent the earth and mud from being bitten between the wheel 11 and the wheel supporting portion 12, and the rolling of the wheel 11 is not prevented.
【００３０】次に第２実施形態の管切断装置１による鋳
鉄管２を管長手方向３及び管周方向４に沿って切削する
切削作業について、その流れに沿って説明する。 １）各角パイプ３３の長手方向両端部に形成した複数の
ボルト穴３５のうち、これから切削作業を行おうとして
いる管径になるボルト穴３５を介して角パイプ３３どう
しをボルト３４で連結して鋳鉄管２の周りに枠体１３を
形成し（図６参照）、各角パイプ３３側面の長手方向略
中央部に設けたボルト軸３６に対して車輪支持部１２の
ボルト挿通孔３７を挿通させて蝶ナット３８を締め付け
て枠体１３に対して車輪１１を取付け固定する（図７参
照）。このとき、鋳鉄管２の長手方向に沿って切削した
い場合には、枠体１３を形成する１本の角パイプ３３の
側面に連結する電動モーター１６を取付けた基板３０
を、電動モーター１６に取付けた回転カッター刃６が、
管長手方向３に沿って切削可能な状態になるように取付
けると共に、車輪１１が管長手方向３に沿って転動する
ように取付けて、基板３０上に取付けた電動モーター１
６を駆動回転させて、電動モーター１６に備えた回転カ
ッター刃６を上下調節機構２９により下降させて、切削
を開始する（図５，６参照）。そして、設定深さに達し
た後、作業者による手動操作で管切断具７を管長手方向
３に沿ってスライド移動させ、管長手方向３に沿って切
削する。 ２）次に、鋳鉄管２の周方向に沿って切削したい場合に
は、電動モーター１６を取付けた基板３０を、電動モー
ター１６に取付けた回転カッター刃６が、管周方向４に
沿って切削可能な状態になるように取付けると共に、車
輪１１が管周方向４に沿って転動するように取付けて、
基板３０上に取付けた電動モーター１６を駆動回転させ
て、電動モーター１６に備えた回転カッター刃６を上下
調節機構２９により下降させて、切削を開始する（図
８，９参照）。そして、設定深さに達した後、作業者に
よる手動操作で管切断具７を管周方向４に沿ってスライ
ド移動させ、管周方向４に沿って切削する。Next, a cutting operation for cutting the cast iron pipe 2 along the pipe longitudinal direction 3 and the pipe circumferential direction 4 by the pipe cutting device 1 of the second embodiment will be described along the flow. 1) Among the plurality of bolt holes 35 formed at both ends in the longitudinal direction of each square pipe 33, the square pipes 33 are connected to each other with bolts 34 through the bolt holes 35 having the diameter of the pipe to be cut. A frame 13 is formed around the cast iron pipe 2 (see FIG. 6), and a bolt insertion hole 37 of the wheel support portion 12 is inserted into a bolt shaft 36 provided at a substantially central portion of the side surface of each square pipe 33 in the longitudinal direction. Then, the wing nut 38 is tightened to attach and fix the wheel 11 to the frame 13 (see FIG. 7). At this time, when it is desired to cut along the longitudinal direction of the cast iron tube 2, the substrate 30 on which the electric motor 16 connected to the side surface of one square pipe 33 forming the frame 13 is attached.
The rotary cutter blade 6 attached to the electric motor 16
The electric motor 1 mounted on the substrate 30 is mounted so that it can be cut along the pipe longitudinal direction 3 and is mounted so that the wheels 11 roll along the pipe longitudinal direction 3.
6 is driven to rotate, and the rotary cutter blade 6 provided in the electric motor 16 is lowered by the vertical adjustment mechanism 29 to start cutting (see FIGS. 5 and 6). After reaching the set depth, the pipe cutting tool 7 is slid along the pipe longitudinal direction 3 by manual operation by an operator, and cut along the pipe longitudinal direction 3. 2) Next, when it is desired to cut along the circumferential direction of the cast iron pipe 2, the substrate 30 to which the electric motor 16 is attached is cut by the rotary cutter blade 6 attached to the electric motor 16 along the pipe circumferential direction 4. Attached so that it can be in a possible state, and attached so that the wheel 11 rolls along the pipe circumferential direction 4,
The electric motor 16 mounted on the substrate 30 is driven to rotate, and the rotary cutter blade 6 provided on the electric motor 16 is lowered by the vertical adjustment mechanism 29 to start cutting (see FIGS. 8 and 9). Then, after reaching the set depth, the pipe cutting tool 7 is slid along the pipe circumferential direction 4 by a manual operation by an operator to cut along the pipe circumferential direction 4.
【００３１】〔別実施形態〕以下に他の実施形態を説明
する。 〈１〉規制具１０は先の実施形態で説明したカッター刃
６の上下調節機構２９に限るものではなく、例えば、図
１０に示すように、枠体１３に取付ける基板３０の一端
部４１を揺動自在に枢止連結すると共に、他端部４２に
車輪支持部１２を介して車輪１１を取付け、この車輪支
持部１２に高さ調節機構４３を設けて高さ調節をするこ
とによりカッター刃６の切削高さを規制するものであっ
ても良い。 〈２〉切断具のスライド移動は先の実施形態で説明した
作業者が切断具を直接移動させる構成のものに限るもの
ではなく、例えば、切断具を送りネジによる回転によっ
てスライドさせる構成のものであっても良い。送りネジ
の回転操作には電動モーターであっても、ハンドル回転
によるものであっても良い。[Another Embodiment] Another embodiment will be described below. <1> The restricting tool 10 is not limited to the vertical adjustment mechanism 29 of the cutter blade 6 described in the above embodiment. For example, as shown in FIG. 10, the one end 41 of the substrate 30 attached to the frame 13 is swung. While being movably pivotally connected, the wheel 11 is attached to the other end portion 42 via the wheel support portion 12, and a height adjusting mechanism 43 is provided on the wheel support portion 12 to adjust the height so that the cutter blade 6 The cutting height may be regulated. <2> The slide movement of the cutting tool is not limited to the configuration in which the operator directly moves the cutting tool described in the above embodiment, and for example, the configuration in which the cutting tool is slid by rotation with a feed screw. There may be. The rotation operation of the feed screw may be performed by an electric motor or by turning a handle.
【図１】本発明に係わる第１実施形態の管切断装置を示
す全体正面図FIG. 1 is an overall front view showing a pipe cutting device according to a first embodiment of the present invention.
【図２】本発明に係わる第１実施形態の管切断装置を示
す全体平面図FIG. 2 is an overall plan view showing the pipe cutting device according to the first embodiment of the present invention.
【図３】本発明に係わる第１実施形態の管切断装置を示
す部分断面全体側面図FIG. 3 is a partial cross-sectional overall side view showing a pipe cutting device according to a first embodiment of the present invention.
【図４】本発明に係わる第１実施形態の管切断装置を示
す部分断面全体側面図FIG. 4 is an overall partial cross-sectional side view showing a pipe cutting device according to a first embodiment of the present invention.
【図５】本発明に係わる第２実施形態の管切断装置を示
す全体正面図FIG. 5 is an overall front view showing a pipe cutting device according to a second embodiment of the present invention.
【図６】本発明に係わる第２実施形態の管切断装置を示
す全体側面図FIG. 6 is an overall side view showing a pipe cutting device according to a second embodiment of the present invention.
【図７】本発明に係わる第２実施形態の固定具及び案内
具を示す斜視図FIG. 7 is a perspective view showing a fixture and a guide according to a second embodiment of the present invention.
【図８】本発明に係わる第２実施形態の管切断装置を示
す全体正面図FIG. 8 is an overall front view showing a pipe cutting device according to a second embodiment of the present invention.
【図９】本発明に係わる第２実施形態の管切断装置を示
す全体側面図FIG. 9 is an overall side view showing a pipe cutting device according to a second embodiment of the present invention.
【図１０】別実施形態の規制具を示す正面図FIG. 10 is a front view showing a regulating tool according to another embodiment.
【図１１】管の切断方向を示す説明図FIG. 11 is an explanatory view showing a cutting direction of a pipe.
１ 管切断装置 ２ 管 ３ 管長手方向 ５ 円盤状切削刃 ７ 管切断具 ８ 案内具 ９ 固定具 １０ 規制具 １１ 車輪 １２ 車輪支持部 １３ 枠体 １５ スクレーパ DESCRIPTION OF SYMBOLS 1 Pipe cutting apparatus 2 Pipe 3 Pipe longitudinal direction 5 Disk-shaped cutting blade 7 Pipe cutting tool 8 Guide 9 Fixing tool 10 Restriction tool 11 Wheel 12 Wheel support 13 Frame 15 Scraper
Claims (5)
盤状切削刃を駆動回転自在に備えた管切断具と、前記管
切断具が、前記切削刃で前記管壁を管長手方向に沿って
切削しながら、管長手方向に沿って移動するように案内
する案内具と、前記案内具を管に着脱自在に固定する固
定具とを設けてある管切断装置。1. A pipe cutting tool provided with a disk-shaped cutting blade capable of driving and rotating a disk-shaped cutting blade capable of cutting a pipe wall along the pipe longitudinal direction, and wherein the pipe cutting tool cuts the pipe wall with the cutting blade in the pipe longitudinal direction. A pipe cutting device provided with a guide for guiding the pipe to move along the longitudinal direction of the pipe while cutting along the pipe, and a fixture for detachably fixing the guide to the pipe.
を規制する規制具を設けてある請求項１記載の管切断装
置。2. The pipe cutting device according to claim 1, further comprising a restricting member for restricting a cutting depth of the cutting blade with respect to the pipe wall.
管長手方向に転動自在な複数の車輪を設けて構成し、前
記固定具を、前記複数の車輪で前記管の外周面を径方向
から挟み込むように、それらの車輪の車輪支持部を管周
方向に間隔を隔てて固定する枠体を設けて構成し、前記
管切断具を前記枠体に支持してある請求項１又は２に記
載の管切断装置。3. The guide device is provided with a plurality of wheels that are rollable in the longitudinal direction of the pipe along the outer peripheral surface of the pipe, and the fixing tool is formed by the plurality of wheels on the outer peripheral surface of the pipe. 2. A frame body for fixing the wheel supporting portions of the wheels at intervals in the circumferential direction of the pipe so as to sandwich the pipe from the radial direction, and the pipe cutting tool is supported by the frame body. Or the pipe cutting device according to 2.
車輪どうしの位置が管長手方向に沿ってずれるように固
定してある請求項３記載の管切断装置。4. The pipe cutting device according to claim 3, wherein the wheel supporting portion is fixed such that positions of wheels adjacent to each other in a pipe circumferential direction are shifted along a pipe longitudinal direction.
転動する状態と、管周方向に沿って転動する状態とに姿
勢変更自在に設け、前記切削刃を、管長手方向に沿って
切削する状態と、管周方向に沿って切削する状態とに姿
勢変更自在に設けてある請求項３又は４に記載の管切断
装置。5. A plurality of wheels are provided so as to be changeable in posture between a state of rolling along a pipe longitudinal direction and a state of rolling along a pipe circumferential direction. The pipe cutting device according to claim 3, wherein a posture is freely changed between a state of cutting along a pipe and a state of cutting along a pipe circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000088936A JP4115069B2 (en) | 2000-03-28 | 2000-03-28 | Pipe cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000088936A JP4115069B2 (en) | 2000-03-28 | 2000-03-28 | Pipe cutting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001277038A true JP2001277038A (en) | 2001-10-09 |
| JP4115069B2 JP4115069B2 (en) | 2008-07-09 |
Family
ID=18604750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000088936A Expired - Lifetime JP4115069B2 (en) | 2000-03-28 | 2000-03-28 | Pipe cutting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4115069B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101094885B1 (en) | 2004-12-15 | 2011-12-15 | 한국항공우주산업 주식회사 | Cutting appuratus for removing of tap |
| GB2494307A (en) * | 2011-09-05 | 2013-03-06 | Paul Kevin Cook | An apparatus for breaking cast iron pipes |
| CN105252070A (en) * | 2015-10-10 | 2016-01-20 | 中国石油天然气集团公司 | Axial cutting device |
| JP2016136035A (en) * | 2015-01-23 | 2016-07-28 | 東邦瓦斯株式会社 | Sheathing pipe removing apparatus and sheathing pipe removing method |
| JP2017087343A (en) * | 2015-11-09 | 2017-05-25 | 京葉瓦斯株式会社 | Outer pipe cutting device |
| CN111318758A (en) * | 2020-04-02 | 2020-06-23 | 苏州珀费克特自动化科技有限公司 | Saw cutter with pressing structure |
-
2000
- 2000-03-28 JP JP2000088936A patent/JP4115069B2/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101094885B1 (en) | 2004-12-15 | 2011-12-15 | 한국항공우주산업 주식회사 | Cutting appuratus for removing of tap |
| GB2494307A (en) * | 2011-09-05 | 2013-03-06 | Paul Kevin Cook | An apparatus for breaking cast iron pipes |
| JP2016136035A (en) * | 2015-01-23 | 2016-07-28 | 東邦瓦斯株式会社 | Sheathing pipe removing apparatus and sheathing pipe removing method |
| CN105252070A (en) * | 2015-10-10 | 2016-01-20 | 中国石油天然气集团公司 | Axial cutting device |
| JP2017087343A (en) * | 2015-11-09 | 2017-05-25 | 京葉瓦斯株式会社 | Outer pipe cutting device |
| CN111318758A (en) * | 2020-04-02 | 2020-06-23 | 苏州珀费克特自动化科技有限公司 | Saw cutter with pressing structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4115069B2 (en) | 2008-07-09 |
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