Title:
IN-PIPE POLISHING MACHINE
Document Type and Number:
Japanese Patent JP2020019092
Kind Code:
A
Abstract:
To provide an in-pipe polishing machine suitable for polishing an inner peripheral surface of a bent pipe having a small caliber.SOLUTION: An in-pipe polishing machine 1 comprises: a polishing part 4 comprising a tip end head 2 for cutting an interior of a pipe and first driving means 3 for rotating the tip end head 2; an arm part 5 which supports the polishing part 4; a columnar body part 7 which has therein second driving means 6 for rotating the polishing part 4 and the arm part 5 around an axis L1; and an outrigger 8 which is connected to a rear end of the body part 7. The body part 7 has, at a tip end thereof, a rotary coupling part which connects the polishing part 4 via the arm part 5, is connected to the second driving means 6, and is rotatable around the axis L1. Third driving means 13, which has a connection part 14 to the polishing part 4 or the arm part 5, and swings both of the polishing part 4 and the arm part 5 with a base end part of the arm part 5 as a rotation point, is fitted to the rotary coupling part.SELECTED DRAWING: Figure 2
Inventors:
HAYASHI KAZUHIKO
UNO MASAMI
YAMANE AYUMI
UNO MASAMI
YAMANE AYUMI
Application Number:
JP2018144531A
Publication Date:
February 06, 2020
Filing Date:
July 31, 2018
Export Citation:
Assignee:
NIPPON NO DIG TECH LTD
International Classes:
B24B5/40
Attorney, Agent or Firm:
Toyoyama Ogi