JPS6165718A - Method of severing water pipe or the like by use of cutting saw having flexible shaft - Google Patents

Abstract

PURPOSE:To make it possible to sever an embedded water pipe or the like which is difficult to be rotated, by winding a roller chain around the outer periphery of the pipe with the use of a rotary screw rod and by pressing a saw blade against the pipe with the use of a chain shaft and push-out rods locked to a saw casing while the saw blade is rotated through a flexible wire. CONSTITUTION:A roller chain C provided to a saw A is wound around a pipe 9 and then a motor 2 is driven to rotate the saw A through a flexible wire 3 so that the saw A goes around the pipe 9 together with the chain C while it saws the pipe 9, thereby the latter is easily severed. That is, a metal support plate 8 is locked to a roll shaft at the wind end of a predetermined pipe and then a rotary screw rod 7 is rotated so that the chain C is firmly wound around the pipe 9. Therefore, a part of tooth section of the saw A is made abut against the outer surface of the pipe 9. Accordingly, when push-out rods 10, 10 are operated, the pipe 9 may be pressed against the saw blade. Thus, after the chain C makes one rotation around the pipe 9 together with the saw A, the pipe 9 such as, for example, water pipe, gas pipe, Hume pipe, steel pipe, etc. which is embedded and secured underground may be easily severed.

Description

Detailed Description of the Invention A. Purpose of the Invention The present invention is useful for cutting pipes with large diameters and spacing in rotation, water pipes and sewer pipes that are placed underground. pipe F
The purpose is to rotate #41m to facilitate cutting.

#'1'i of Mizodai book 1'J of mouth 0 invention! To explain this from the perspective of the river,
Connect the tip of the flexible wire 30 rotated by the motor 2 to the Jυ axis 1 in the IAAD, and extend the shaft AO 7 * part 0-at- to the opening 6 of the case 4 equipped on the saw A axis 1. 40 Open 0% 5O IQ
At the O tip 4, attach the S pane and the dipping gR of the a-gicheno C and integrate them together, and at the same time, weld the base end of the q shunji rod γ in the lateral direction on the roll 1!116 of the base. , it is related to the structure in which the support plate 8 which is screwed into the rotational screw thread is freely adjustable to the roll axis of the RFR of the low 2 chain C. Pottery,
Case 4 opening f! 115K compatible roller chain/
The roller shaft of C is removed for the operation of the S beak. 9 indicates the tube, and since the present invention has one seat as shown in F, the motor 2 is wound around the chain 9, which is attached to the hem AK. When driven, the sawman rotates from the flexible pull wire 3IC and cuts f9.
Attach a rotary screw γ in the vertical direction 6 to the roll shaft at the base end of the roller chain/C joint. Then, screw the supporting plate 8 onto this rotary screw leaf at #. When the plate 8 is connected to the cool shaft at the end of the winding of the required pipe and the regenerative screw Fl-7 is rotated, the roller chain C is moved to fQK'! ＜It can be easily wrapped.

Therefore, the swamp A7) exposed from the opening 5 of 1 case 4
A part of the IgD comes into contact with the surface of the extrusion tube 90, so the extrusion f
f1o, Lot-When activated, W9 is moved through roller chain/C to i! ! Ministry! (I can push it. And roller chain/
Since C is integrated with the saw hJ, the roller chain C and the integrated saw A should be placed around the pipe 9 once in the center. ? ! !
It is possible to easily cut Hiem's fence, steel pipes, etc. inserted into equal lengths. In addition, since the saw A can maintain the required distance from the motor 2 by using the flexible wire 3, the motor will not be damaged by the water coming out from the cut while cutting the water 11, etc., which is a useful invention. Q: The present invention can be used in conjunction with a plurality of devices as shown in the third example.

[Brief explanation of the drawing]

Figure 1 is an iI+ side view of the actual state, Figure 2 is an enlarged slope 1 of the fixed part of the tube, and Figure 3 is a view of the Etsu'zuki-゛P side for the double series l. A; #, a; I#4, C; a-ra chain, 1; serrated center post, 2: motor, 3; flexible wire, number;
Ring case, 5: opening, 6: roll shaft, 1: rotating screw,
8; Support plate, 9; 2.1o; Ml output FF. Figure 2 Figure 3 Figure 1

Claims (1)

[Claims] The tip of a flexible wire rotated by a motor is connected to the central shaft of the saw, and a part of the teeth of the saw is exposed through the opening of a case equipped to the shaft of the saw. Equipped with extrusion rods operated by gears on both sides of the end of the opening, attaching both sides of the base end of the roller chain to the tip of the extrusion rod to integrate them, and rotating the roller chain vertically around the roll shaft at the base end. A method for cutting water pipes, etc. using a cutting saw with a flexible shaft in which the base end of a moving screw rod is welded and a base plate screwed onto the rotating screw rod can be freely locked to a required roll shaft of a roller chain.