Title:
BORING MACHINE
Document Type and Number:
Japanese Patent JP2020163504
Kind Code:
A
Abstract:
To provide a boring machine in which positional deviation can be prevented with a simple configuration and a punching blade can surely be positioned.SOLUTION: A boring machine 1A includes: a punching blade 10; a motor which rotates the punching blade 10; a cable which connects the motor to the punching blade 10; and a fixing member 30 which is provided on a tip side of the cable and fixes the cable 15 and the punching blade 10 at a prescribed position in a pipe. The boring machine 1A forms a hole for communicating a regenerated pipe buried in the ground with a branch pipe B mounted in the regenerated pipe M. An insertion hole through which the cable 15 and the punching blade 10 are passed is formed in the fixing member 30. One or more sections 33a to be locked viewed from an axial line L direction of the insertion hole are formed on an inner peripheral surface 31a of the fixing member 30. A positioning member 20 which is movable to the tip side while pressing the punching blade 10 and has a locking section 23 locking the section 33a to be locked at a prescribed position in the insertion hole is provided on a rear end side of the punching blade 10. The fixing member 30 and the positioning member 20 advance the punching blade 10 in a stepwise manner toward the regenerated pipe M.SELECTED DRAWING: Figure 3
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Inventors:
KONO NAOYA
YAMANE AYUMI
YAMANE AYUMI
Application Number:
JP2019065030A
Publication Date:
October 08, 2020
Filing Date:
March 28, 2019
Export Citation:
Assignee:
NIPPON NO DIG TECH LTD
International Classes:
B26F1/16; B23B39/14; B23B41/00; B23B47/18; B23B49/00; E03F3/04; E03F7/00; F16L55/32
Attorney, Agent or Firm:
Toyoyama Ogi