Title:
TIMBERING CONSTRUCTING HEAVY MACHINE FOR MOUNTAIN TUNNEL
Document Type and Number:
Japanese Patent JP2000136690
Kind Code:
A
Abstract:
To provide a timbering constructing heavy machine for which a function which can simply remove slight defects at the ground is added.
A timbering erector, a concrete spray arm, and an ascending/ descending man cage 5 are mounted on a base machine 2. In this case, a rock drill 20 which can be operated manually is arranged at the front of the man cage 5, and a driving hose 25 for the rock drill 20 is connected to a hydraulic drive source of the base machine 2 along an arm 6 which hoists the man cage 5 up and down.
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Inventors:
SAITO ARISA
Application Number:
JP30911298A
Publication Date:
May 16, 2000
Filing Date:
October 29, 1998
Export Citation:
Assignee:
OHBAYASHI CORP
International Classes:
E21D9/10; E21B7/02; E21B15/00; E21B19/08; E21D11/40; (IPC1-7): E21B7/02; E21D9/10; E21D11/40
Attorney, Agent or Firm:
Kensuke Isshiki (2 outside)
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