Title:
WORKING DEVICE FOR INNER WALL SURFACE OF TOWER TANK, AND INNER WALL SURFACE WORKING METHOD USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2003/095142
Kind Code:
A1
Abstract:
A suspension beam (9) is vertically movably suspended from a suspension support base (8) installed inside a tower tank (1), and a working unit (20) is vertically and/or horizontally movably attached to the suspension beam (9) through a guide mechanism (Z), it being arranged that working, such as welding, is applied to the inner wall surface (1d) of the tower tank (1) by the working unit (20). Thus, the setting of the working height position based on the working unit (20) can be easily changed by vertically moving the suspension beam (9), so that step change operation during working is greatly simplified or made unnecessary, and safety of operation and improved working efficiency can be achieved.
Inventors:
FUJIWARA REIKI (JP)
ITO MASAAKI (JP)
ITO MASAAKI (JP)
Application Number:
PCT/JP2003/005793
Publication Date:
November 20, 2003
Filing Date:
May 08, 2003
Export Citation:
Assignee:
DAIO SEISHI KK (JP)
FUJIWARA REIKI (JP)
ITO MASAAKI (JP)
FUJIWARA REIKI (JP)
ITO MASAAKI (JP)
International Classes:
D21C7/00; E04G1/20; E04G1/36; E04G3/00; B23K37/00; E04G3/24; E04G3/28; E04G3/30; (IPC1-7): B23K37/00; E04G3/00; E04G3/10; D21C7/00
Foreign References:
| JPH08145331A | 1996-06-07 | |||
| JPS61261569A | 1986-11-19 | |||
| JPH11131789A | 1999-05-18 |
Attorney, Agent or Firm:
Ishihara, Masaru (Tatsuno Nishi-tenma Bldg. 1-6, Nishi-tenma
3-chome, Kita-k, Osaka-shi Osaka, JP)
Download PDF:
Previous Patent: METHOD FOR HYBRID MULTIPLE-THICKNESS LASER-ARC WELDING WITH EDGE WELDING
Next Patent: WEIGHT-COMPENSATING DEVICE
Next Patent: WEIGHT-COMPENSATING DEVICE