Title:
SHAFT EXCAVATING DEVICE
Document Type and Number:
Japanese Patent JPH04237795
Kind Code:
A
Abstract:
PURPOSE: To make the work in a shaft to be unmanned and enable an excavating work to be safe in case of excavating a shaft by remotely operating a power shovel to perform excavating work in the shaft, and letting a holding frame to elevatably move the power shovel function as a strut.
CONSTITUTION: A plurality of jacks 9 are provided on the circumference of an upper step frame 2 and a lower step frame 3, an elevator device 4 to change an interval of both is provided between the upper step frame 2 and the lower step frame 3, and a power shovel 5 is movably fitted on the underside of the lower step frame 3.
Inventors:
YAMAMOTO ITSUO
HAMAZUKA SEIJI
KOBAYASHI KATSUMI
MARU TAKAHIRO
HAMAZUKA SEIJI
KOBAYASHI KATSUMI
MARU TAKAHIRO
Application Number:
JP2151091A
Publication Date:
August 26, 1992
Filing Date:
January 22, 1991
Export Citation:
Assignee:
FUJITA CORP
International Classes:
E02D17/08; E02D17/13; E02D29/045; E02F3/30; E02F5/02; E04H6/06; E21D1/03; E21D13/00; (IPC1-7): E02D17/08; E02D17/13; E02D29/04; E02F3/30; E04H6/06; E21D1/03
Domestic Patent References:
| JPS55126684A | 1980-09-30 |
Attorney, Agent or Firm:
Katsuji Maki
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