Title:
CONSTRUCTION MACHINE, BOOM MOUNTING METHOD, AND BOOM DEMOUNTING METHOD
Document Type and Number:
Japanese Patent JP2015124491
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a construction machine in which a boom can be mounted/demounted on/from a revolving superstructure without using a crane.SOLUTION: In an earth drill 1, a telescopic boom 30 is mounted on a revolving superstructure 10 in a rising/falling manner with boom foot pins 40R, 40L inserted through insertion holes 38a1, 38b1, 39a1, 39b1 of boom feet 38a, 38b, 39a, 39b, and in the state that the telescopic boom 30 falls down, a front frame 34 mounted on the telescopic boom 30 extends obliquely downward to the front side. A boom support 100 is provided extending in the vertical direction in the state that the telescopic boom 30 falls down, an upper end 100a of the boom support 100 is mounted to a base end 34a of the front frame 34, and a lower end 34b of the front frame 34 and a lower end 100b (a leg member 101) of the boom support 100 are placed on a loading space 220 of a trailer 200. Thus, the falling-down telescopic boom 30 is supported by the trailer 200.
Inventors:
MURATE TOKUO
TAKAYAMA KOJI
TAKAYAMA KOJI
Application Number:
JP2013267974A
Publication Date:
July 06, 2015
Filing Date:
December 25, 2013
Export Citation:
Assignee:
NIPPON SHARYO SEIZO KK
International Classes:
E21B11/00
Domestic Patent References:
| JP2003035085A | 2003-02-07 | |||
| JPH07305585A | 1995-11-21 | |||
| JPS57138885U | 1982-08-30 | |||
| JP2004316168A | 2004-11-11 | |||
| JP2003035085A | 2003-02-07 | |||
| JPH07305585A | 1995-11-21 | |||
| JPS57138885U | 1982-08-30 | |||
| JP2004316168A | 2004-11-11 |
Attorney, Agent or Firm:
Patent Business Corporation Cosmos Patent Office