Title:
PERFORATING DEVICE
Document Type and Number:
Japanese Patent JP2006326722
Kind Code:
A
Abstract:
To provide a perforating device capable of perforating a hole on a wall of a circular hole without worker's entering the circular hole.
This perforating device comprises a perforating tool 2 with a drill 2a, a supporting part 3 supporting the perforating tool 2 under a condition that the tip of the drill 2a is opposed to a wall 97 of a circular hole 91, and a posture changing mechanism 4 supporting the supporting part 3 and changing the posture of the changing part 3 to make it possible to the position and the angle of the hole formed on the wall 97 by the drill 2a. The posture changing mechanism 4 is provided outside an opening end of the circular hole 91 to be operable from the outside of the circular hole 91.
Inventors:
MURAO MASATSUGU
MURAO KOICHI
FUJII MASAO
MITANI TETSUYA
MURAO KOICHI
FUJII MASAO
MITANI TETSUYA
Application Number:
JP2005151210A
Publication Date:
December 07, 2006
Filing Date:
May 24, 2005
Export Citation:
Assignee:
NAMITEI KK
COMMUTURE CORP
COMMUTURE CORP
International Classes:
B23B45/14; B28D1/14; E02D29/12
Attorney, Agent or Firm:
Toshio Yasuda
Mikio Yasuda
Mikio Yasuda