JPH024796U

JPH024796U -

Info

Publication number: JPH024796U
Application number: JP8070788U
Authority: JP
Priority date: 1988-06-18
Filing date: 1988-06-18
Publication date: 1990-01-12

Description

[Brief explanation of the drawing]

図面はこの考案の実施例を示すもので、第１図
は正面図、第２図は切断しようとするパイプに切
断機を載せた場合を示す正面図、第３図はパイプ
を切断するために前記補助フレームを把手によつ
て押下げた場合を示す正面図である。１……案内ロール、２……軸受、３……主フレ
ーム、４……第１ピン、５……ばね、６……第１
ストツパー、７……補助フレーム、８……把手、
９……第２ピン、１０……第２ストツパー、１１
……第３ストツパー、１２……電動丸歯鋸、１３
……歯、１４……安全スイツチ、１５……リミツ
トスイツチ、１６……切断しようとするパイプ材
。 The drawings show an embodiment of this invention; Fig. 1 is a front view, Fig. 2 is a front view showing the case where the cutting machine is placed on the pipe to be cut, and Fig. 3 is a front view showing the case where the cutting machine is placed on the pipe to be cut. It is a front view which shows the case where the said auxiliary frame is pushed down by a handle. 1... Guide roll, 2... Bearing, 3... Main frame, 4... First pin, 5... Spring, 6... First
Stopper, 7...Auxiliary frame, 8...Handle,
9...Second pin, 10...Second stopper, 11
...Third stopper, 12...Electric circular tooth saw, 13
... Teeth, 14 ... Safety switch, 15 ... Limit switch, 16 ... Pipe material to be cut.

Claims

[Claims for Utility Model Registration] 1. Two horizontally placed guide rolls and a main frame that holds the axes of the two guide rolls parallel to each other at a fixed or variable interval and capable of rolling. is supported by a first pin provided at one end of the main frame parallel to the axis of the guide roll, and rotates within a certain angle range above the guide roll about the first pin. or by sliding on a rail mounted on said frame at right angles to said guide roll, thereby also enabling said frame to move up and down above said guide roll, and in each case said The auxiliary frame is biased by a spring and lifted upward until it hits a stopper provided on the main frame. The pipe cutting machine, which consists of an electric circular saw mounted parallel to the guide roll and an attached switch, indirectly cuts the pipe through a second pin provided at one point. Place the two guide rolls on the pipe rod to be cut so that their axes are parallel to the pipe material, and press the spring until the teeth of the electric circular saw come into contact with the outer periphery of the pipe material to be cut. At the same time as the handle is pushed down against the force, the attached switch is operated to rotate the electric circular tooth saw, and the handle is further pushed down to cut the wall thickness of the pipe material while cutting the outer periphery of the pipe material. The structure of the pipe cutting machine is such that the pipe material is sequentially cut along the outer periphery of the pipe material by rolling the guide roll along the pipe material. 2. The handle and the electric circular tooth saw are indirectly connected by the second pin, and the electric circular tooth saw is normally positioned below the handle under the force of gravity or a spring. However, in order to cut the pipe material, the handle is pushed down, or the guide roll is rolled along the outer periphery of the pipe material while being pushed down, so that the teeth of the electric circular saw cut the pipe material. By applying an external force perpendicular to the axis of the teeth of the electric circular saw in contact with the pipe material, the electric circular saw resists the force of gravity or the spring around the second pin. The pipe cutting machine is configured to move the electric circular tooth saw slightly upwardly with respect to the auxiliary frame, and automatically rotate or stop the electric circular tooth saw as necessary according to the action of a limit switch activated by the movement of the pipe cutting machine. structure.