Title:
CRUSHING DEVICE AND CRUSHING METHOD
Document Type and Number:
Japanese Patent JP2015165081
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To enhance efficiency of crushing operation performed by a wedge type chisel by restraining the wedge type chisel from being engaged in a drilled hole.SOLUTION: A crushing device includes a main body part held by a work machine, a vibration part vibrated in a vibration direction parallel to a direction in which a drilled hole is formed on a crushed object side of the main body part, a supporting part for supporting the vibration part with respect to the main body part to be freely vibrated in the vibration direction, and a chisel holding part attached to the vibration part and holding a rear end of a wedge type chisel. The crushed object is crushed by pushing a distal end of the wedge type chisel by pressing force imparted from its own weight or the work machine while imparting the vibration in the vibration direction generated in the vibration part to the wedge type chisel while holding the rear end of the wedge type chisel in the chisel holding part in a state that the distal end of the wedge type chisel is inserted in the drilled hole.
Inventors:
KAMISHIMA AKIO
KAMISHIMA MITSUKO
KAMISHIMA MITSUKO
Application Number:
JP2014078747A
Publication Date:
September 17, 2015
Filing Date:
April 07, 2014
Export Citation:
Assignee:
KAMISHIMAGUMI CO LTD
International Classes:
E21B10/36; E21C37/02; E21C37/04
Attorney, Agent or Firm:
Kakusho Shoichi
Ryose Uji
Ryose Uji