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Title:
PERFORATOR AND PERFORATION METHOD
Document Type and Number:
WIPO Patent Application WO/2017/203823
Kind Code:
A1
Abstract:
This perforator has: an operating robot 20 for loading a perforating blade 28 and moving inside a main pipe; and a light detector 40 for detecting the contours of an opening part image 34 formed on an inner surface of a pipe lining material by illumination light. A two-dimensional image corresponding to the opening part image is generated and displayed on a display device on the basis of contour points P0 to P8 detected by the light detector 40 by scanning the opening image. The amount of positional deviation between the center of the two-dimensional image on the display device and the axial center C of a rotational shaft of the perforating blade 28 is calculated, the perforating blade is moved by the amount of positional deviation thereof in a direction in which the positional deviation will be eliminated, and the pipe lining material is perforated.

Inventors:
KAMIYAMA Takao (31-27 Daikan-cho, Hiratsuka-sh, Kanagawa 07, 〒2540807, JP)
KATO Takashi (8-16-10, Jindaijihigashimachi Chofu-sh, Tokyo 12, 〒1820012, JP)
Application Number:
JP2017/012789
Publication Date:
November 30, 2017
Filing Date:
March 29, 2017
Export Citation:
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Assignee:
SHONAN GOSEI-JUSHI SEISAKUSHO K.K. (31-27, Daikan-cho Hiratsuka-sh, Kanagawa 07, 〒2540807, JP)
International Classes:
B26D5/34; B26D1/44; B26D3/00; B26D5/02; B26F1/16; E03F7/00; F16L55/26
Attorney, Agent or Firm:
HAYAKAWA Yuzi et al. (Sansui Patent Firm, 4th Floor Akasaka Wing Bldg., 6-6-15, Akasaka, Minato-k, Tokyo 52, 〒1070052, JP)
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