JPH0410978Y2

JPH0410978Y2 -

Info

Publication number: JPH0410978Y2
Application number: JP17111686U
Authority: JP
Priority date: 1986-11-07
Filing date: 1986-11-07
Publication date: 1992-03-18
Also published as: JPS6376416U

Description

【考案の詳細な説明】（産業上の利用分野）本考案は、平行波付金属パイプ、主として同軸
ケーブル、通信ケーブル、各種輸送パイプ等の外
部保護被覆である平行波付金属パイプの切断に用
いるカツタの改良に関する。[Detailed description of the invention] (Field of industrial application) This invention is used for cutting parallel corrugated metal pipes, which are mainly external protective coatings for coaxial cables, communication cables, various transportation pipes, etc. Concerning improvement of katsuta.

（従来技術）近年パイプ類の市場では、端末加工の容易でか
つ加工時のばらつきが少ない平行波付金属の需要
が高まつてきている。このような平行波付金属パ
イプを切断する場合には、継手等との接続構造上
パイプ山部を切断する必要がある。このようなカ
ツタには、例えば実開昭59−105314号公報に記載
されたような考案が存在する。前記の考案は、ガ
イドロール（本考案においてはパイプ受部と称す
る）によるガイド機能の安全性を向上させ、平行
波付金属パイプの山部を精度よく切断できるよう
にし、またガイドローラ自体をコンパクトにでき
るようにしてあり、その要旨は、カツタ本体に、
平行波付金属パイプの外周を本体と共に周動する
複数のガイドロールと、切開刃とを備えた平行波
付金属パイプ用カツタにおいて、パイプ山部の形
状に沿う断面形状を有し、２ピツチ以上離れた各
山部にそれぞれ軸方向移動不能に当接する一対の
ガイド部（本考案においては受ロールと称する）
と、この一対のガイド部をカツタ本体に回動自在
に支持する軸部（本考案においては固定軸と称す
る）とによりガイドローラを構成し、切開刃をパ
イプ山部頂点又は頂点近傍に当接するように設け
たものである。(Prior Art) In recent years, in the pipe market, there has been an increasing demand for parallel corrugated metals that are easy to process at the end and have little variation during processing. When cutting such a parallel corrugated metal pipe, it is necessary to cut the crest of the pipe due to the connection structure with a joint or the like. There is a device for such a cutter, for example, as described in Japanese Utility Model Application Publication No. 105314/1983. The above-mentioned invention improves the safety of the guiding function of the guide roll (referred to as the pipe receiving part in this invention), makes it possible to cut the peaks of parallel corrugated metal pipes with high precision, and makes the guide roller itself more compact. The gist is that the katsuta itself has a
A cutter for a parallel corrugated metal pipe, which is equipped with a plurality of guide rolls that rotate along the outer periphery of the parallel corrugated metal pipe along with the main body, and a cutting blade, which has a cross-sectional shape that follows the shape of the pipe peak, and has a cutter of 2 or more pitches. A pair of guide parts (referred to as receiving rolls in the present invention) that contact each of the separated peaks without being able to move in the axial direction.
and a shaft part (referred to as a fixed shaft in the present invention) that rotatably supports the pair of guide parts on the cutter body, forming a guide roller, and the cutting blade is brought into contact with the apex of the pipe crest or near the apex. It was set up like this.

（考案が解決しようとする問題点）しかし、上述のカツタでは、受ロールが軸方向
に移動不能になつているため、例えば同軸ケーブ
ル等でサイズが複数種類ある場合、サイズごとに
波付ピツチが異なるために、各波付ピツチごとの
カツタが必要であり、すなわち複数種類のカツタ
が必要であるという問題があつた。(Problem that the invention aims to solve) However, in the above-mentioned cutter, the receiving roll cannot move in the axial direction, so when there are multiple sizes of coaxial cables, for example, the corrugated pitch is different for each size. Because of the difference, a problem arises in that a cutter is required for each corrugated pitch, that is, a plurality of types of cutters are required.

（問題を解決するための手段）本考案は上述の問題点を解決するためになされ
たものであり、パイプ受部の受ロールを軸方向に
移動可能とし、波付ピツチの異なる複数種類の平
行波付金属パイプであつても、一個のカツタで切
断することのできる平行波付金属パイプ用カツタ
を提供するものであり、その要旨は、所定間隔を
置いて配した一対のパイプ受部と、該一対のパイ
プ受部の中間方向に進退自在とし先端に切開刃を
設けたカツタ部と、該パイプ受部とカツタ部とを
つなぐ略Ｃ字状のカツタ本体部とからなり、前記
パイプ受部は、切開すべき平行波付金属パイプの
軸方向と平行に配し、カツタ本体に固定した固定
軸と、該固定軸に回転自在に外嵌し軸方向には移
動を規制されたスリーブ体と、該スリーブ体に固
定自在に外嵌し、パイプ山部に沿う断面外形であ
る一対の受ロールとを有する平行波付金属パイプ
用カツタである。(Means for Solving the Problem) The present invention was made to solve the above-mentioned problem, and it enables the receiving roll of the pipe receiving part to be moved in the axial direction, and allows multiple types of parallel pipes with different wave pitches to be moved. The present invention provides a cutter for parallel corrugated metal pipes that can cut even corrugated metal pipes with a single cutter. The pipe receiving part is made up of a cutter part that can move forward and backward in the middle direction of the pair of pipe receiving parts and has a cutting blade at its tip, and a substantially C-shaped cutter main body part that connects the pipe receiving part and the cutter part. consists of a fixed shaft arranged parallel to the axial direction of the parallel corrugated metal pipe to be cut and fixed to the cutter body, and a sleeve body fitted externally to the fixed shaft so as to be rotatable and whose movement in the axial direction is restricted. , a parallel corrugated metal pipe cutter having a pair of receiving rolls fixedly fitted onto the sleeve body and having a cross-sectional outline along the pipe crest.

（実施例）以下、図面を参照して本考案を詳細に説明す
る。第１図は本考案に係るカツタのパイプ受部の
一部断面拡大図、第２図は本考案に係るカツタの
一部縦断側面図を示す。(Example) Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is an enlarged partial cross-sectional view of a pipe receiving portion of a cutter according to the present invention, and FIG. 2 is a partial longitudinal side view of the cutter according to the present invention.

第２図において、１１は概ねｃ形のカツタ本体
であつて、一端部に筒状の柄部１２を有してい
る。柄部１２のパイプＰ側の内周面１３は断面形
状４辺形に形成されており、４辺形内周面１３に
は切開刃支持ロツド１５が柄部１２の長さ方向移
動自在かつ回転不能に挿入されている。ロツド１
５パイプＰ側端部にはピン１６を介して円板状切
開刃１７が回転自在に支承されている。ロツド１
５の反切開刃側部分にはめねじ孔１９が形成さ
れ、このめねじ孔１９には切開刃移動用（押付
用）ボルト２０が螺挿されている。ボルト２０は
柄部１２の外方まで延びており、先端には取手２
１がセツトボルト２２により固着されている。ボ
ルト先端側部２０ａはストツパ用筒状金具２３に
よつて回転自在に支承されており、金具２３は柄
部１２の反パイプＰ側端部に螺着されている。ま
たボルト２０の柄部１２内の部分にはフランジ状
ストツパ部２０ｂが形成されており、ストツパ部
２０ｂは金具２３のパイプＰ側の端面に当接して
いる。即ち金具２３により切開刃移動用ボルト２
０を回転自在かつ軸方向移動不能に支持してい
る。従つて取手２１をいずれか一方向へ回転する
ことにより切開刃１７はパイプ中心Ｏ側へ移動
し、他方向へ回転することにより反パイプ中心Ｏ
側へ移動する。 In FIG. 2, reference numeral 11 denotes a cutter body having a generally C shape, and has a cylindrical handle 12 at one end. The inner circumferential surface 13 of the handle 12 on the pipe P side is formed to have a quadrilateral cross-sectional shape, and the cutting blade support rod 15 is mounted on the quadrilateral inner circumferential surface 13 so as to be movable in the length direction of the handle 12 and rotatable. It is inserted without being able to do so. Rod 1
A disc-shaped cutting blade 17 is rotatably supported at the P-side end of the 5-pipe via a pin 16. Rod 1
A female threaded hole 19 is formed in the opposite side of the cutting blade 5, and a cutting blade moving (pressing) bolt 20 is screwed into this female threaded hole 19. The bolt 20 extends to the outside of the handle 12, and has a handle 2 at the tip.
1 is fixed by a set bolt 22. The bolt end side portion 20a is rotatably supported by a stopper cylindrical metal fitting 23, and the metal fitting 23 is screwed onto the end of the handle portion 12 on the side opposite to the pipe P. Further, a flange-shaped stopper portion 20b is formed in a portion inside the handle portion 12 of the bolt 20, and the stopper portion 20b is in contact with the end surface of the metal fitting 23 on the pipe P side. That is, the bolt 2 for moving the cutting blade is connected by the metal fitting 23.
0 is supported rotatably but immovably in the axial direction. Therefore, by rotating the handle 21 in one direction, the cutting blade 17 moves toward the pipe center O, and by rotating the handle 21 in the other direction, it moves away from the pipe center O.
Move to the side.

本体１１の反柄部１２側の端部には２股状のホ
ルダ２５が設けられており、ホルダ２５の各先端
にはボス部２６が形成され、各ボス部２６にはパ
イプ受部２７が回転自在に支承されている。両パ
イプ受部２７，２７はその中心線がパイプ中心線
Ｏと平行に配置されると共に、パイプＰの円周方
向に間隔を隔てて配置されている。両パイプ受部
２７，２７と切開刃１７は概ね正三角形の各頂点
に位置する。 A bifurcated holder 25 is provided at the end of the main body 11 on the side opposite to the handle 12. A boss portion 26 is formed at each tip of the holder 25, and a pipe receiving portion 27 is formed in each boss portion 26. It is rotatably supported. Both pipe receiving parts 27, 27 are arranged so that their center lines are parallel to the pipe center line O, and are arranged at intervals in the circumferential direction of the pipe P. The pipe receiving parts 27, 27 and the cutting blade 17 are located at approximately each vertex of an equilateral triangle.

第１図は本考案に係るカツタのパイプ受部であ
り、第２図の−断面拡大図であるが、パイプ
受部２７は、切開すべき平行波付金属パイプＰの
軸方向と平行に配し、ボス部２６を通じてカツタ
本体に固定した固定軸２８と、該固定軸２８に回
転自在に外嵌し軸方向には移動を規制されたスリ
ーブ体３０と、該スリーブ体３０にボルト３１，
３１によつて固定自在に外嵌し、パイプ山部
（Q₁，Q₃等）に沿う断面外形である一対の受ロー
ル２９，２９とを有している。 FIG. 1 shows a pipe receiving part of the cutter according to the present invention, and is an enlarged cross-sectional view of FIG. A fixed shaft 28 is fixed to the cutter body through the boss portion 26, a sleeve body 30 is rotatably fitted onto the fixed shaft 28 and is restricted from moving in the axial direction, and a bolt 31 is attached to the sleeve body 30.
31, and has a pair of receiving rolls 29, 29 which are fixedly fitted onto the outside and have a cross-sectional outer shape along the pipe peaks ( _Q1 , Q3 _, etc.).

切断しようとする平行波付金属パイプのサイズ
を変更しようとする場合、ボルト３１，３１をゆ
るめ、受ロール２９，２９を所定の位置に移動さ
せ、再びボルト３１，３１で受ロール２９，２９
を固定すればよい。例えば、同軸ケーブルの場合
波付ピツチは定められた値であるため、波付ピツ
チごとに受ロールのあわせる位置を、あらかじめ
スリーブ体上にけがき線等でしるしをつけておけ
ば、位置あわせは簡単にできる。 When changing the size of the parallel corrugated metal pipe to be cut, loosen the bolts 31, 31, move the receiving rolls 29, 29 to a predetermined position, and tighten the bolts 31, 31 again to remove the receiving rolls 29, 29.
Just fix it. For example, in the case of a coaxial cable, the corrugation pitch is a predetermined value, so if you mark the position of the receiving roll for each corrugation pitch with a marking line on the sleeve body in advance, the alignment will be easier. It's easy to do.

以上の構成によるカツタにより、平行波付金属
パイプＰを切断する場合には、まず取手２１を回
すことによりパイプ受部２７と切開刃１７との間
隔を広げておき、パイプＰの切断しようとする筒
所をパイプ受部２７と切開刃１７間に挿入する。
そして両受ロール２９，２９をそれぞれ２ピツチ
はなれた山部Q₁，Q₃に当接し、取手２１を回す
ことにより切開刃１７を両受ロール２９，２９間
の山部Q₂の頂点に食い込む程度に押し付ける。
しかる後にカツタ本体１１をパイプＰの中心Ｏ回
りに第２図の矢印Ａ（又は反矢印Ａ）方向へ回転
させると共に、取手２１の回動調節により徐々に
食込量を増やし、パイプＰを切断する。 When cutting a parallel corrugated metal pipe P with the cutter having the above configuration, first widen the distance between the pipe receiving part 27 and the cutting blade 17 by turning the handle 21, and then try to cut the pipe P. Insert the tube between the pipe receiving part 27 and the cutting blade 17.
Then, the receiving rolls 29 and 29 are brought into contact with the peaks Q ₁ and Q ₃ separated by two pitches, respectively, and by turning the handle 21, the cutting blade 17 bites into the top of the peak Q ₂ between the receiving rolls 29 and 29. Press to a certain extent.
After that, the cutter body 11 is rotated around the center O of the pipe P in the direction of arrow A (or opposite arrow A) in FIG. do.

本実施では、受ロール２９，２９が、パイプ山
部Q₁，Q₃の内側（Q₂側）に沿う形状の場合を例
示したが、パイプ山部の外側に沿う形状であつて
もよい。 In this embodiment, the case where the receiving rolls 29, 29 have a shape along the inside ( _Q2 side) of the pipe crests _Q1 , _Q3 is illustrated, but they may have a shape that follows the outside of the pipe crests.

また受ロール２９，２９をスリーブ体３０上に
固定するボルト３１，３１は各受ロールについて
１個の場合を例示したが、各受ロールの円周方向
に複数個設ける構造であつてもよい。 Moreover, although the case where one bolt 31, 31 for fixing the receiving rolls 29, 29 on the sleeve body 30 is provided for each receiving roll is illustrated, a plurality of bolts 31, 31 may be provided in the circumferential direction of each receiving roll.

（効果）本考案に係る平行波付金属パイプ用カツタは、
パイプ受部の受ロールが軸方向に移動可能である
ため、波付ピツチの異なる複数種類の平行波付金
属パイプを１種類のカツタで切断することがで
き、波付ピツチごとのカツタを準備する必要がな
いため、価格面で非常に有利となり、また工事現
場等へ持ち運びも便利となる。(Effects) The parallel corrugated metal pipe cutter according to the present invention has
Since the receiving roll of the pipe receiving part is movable in the axial direction, multiple types of parallel corrugated metal pipes with different corrugated pitches can be cut with one type of cutter, and a cutter for each corrugated pitch can be prepared. Since it is not necessary, it is very advantageous in terms of price, and it is also convenient to carry to construction sites, etc.

[Brief explanation of the drawing]

第１図は、本考案に係るカツタのパイプ受部の
断面拡大図、第２図は本考案に係るカツタの一部
縦断側面図を示す。１１……カツタ本体、１７……切開刃、２７…
…パイプ受部、２８……固定軸、２９……受ロー
ル、３０……スリーブ体、３１……ボルト、Ｐ…
…パイプ。 FIG. 1 is an enlarged cross-sectional view of a pipe receiving portion of a cutter according to the present invention, and FIG. 2 is a partially longitudinal side view of the cutter according to the present invention. 11...Katsuta body, 17...Incision blade, 27...
... Pipe receiving part, 28 ... Fixed shaft, 29 ... Reception roll, 30 ... Sleeve body, 31 ... Bolt, P ...
…pipe.

Claims

[Scope of claim for utility model registration] A pair of pipe receivers arranged at a predetermined interval,
It consists of a cutter part that can move forward and backward in the middle direction of the pair of pipe receivers and has a cutting blade at its tip, and a substantially C-shaped cutter main body that connects the pipe receiver and the cutter part, the pipe receiver part consists of a fixed shaft arranged parallel to the axial direction of the parallel corrugated metal pipe to be cut and fixed to the cutter body, and a sleeve body fitted externally to the fixed shaft so as to be rotatable and whose movement in the axial direction is restricted. A cutter for a metal pipe with parallel corrugations, characterized in that it has a pair of receiving rolls which are fixedly fitted onto the sleeve body and have a cross-sectional outer shape along the crest of the pipe.