Title:
GRAVITY CENTER VARIABLE DEVICE
Document Type and Number:
Japanese Patent JP2015059381
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a gravity center variable device for an excavator that can effectively enhance excavating force.SOLUTION: A gravity center variable device 100 is mounted to an excavator. The excavator includes: a self-propelled traveling body 6; a revolving body 7 installed on the traveling body 6, revolving relative to the traveling body 6 and having a counter weight 21 on the rear side; and an excavating body 10, installed on the front side of the revolving body 7, for performing an excavating operation. The gravity center variable device 100 includes: a movable weight 40 installed in the counter weight 21 and moving forwards/backwards relative to the counter weight 21; an acceleration sensor 76 (excavating operation detection section) for detecting whether or not the excavating operation is being performed by the excavating body 10; and a controller 70 for controlling the movement of the movable weight 40 when the excavating operation is detected by the acceleration sensor 76.
Inventors:
OMOTE MASAYA
Application Number:
JP2013195199A
Publication Date:
March 30, 2015
Filing Date:
September 20, 2013
Export Citation:
Assignee:
KAYABA INDUSTRY CO LTD
International Classes:
E02F9/18; B66C23/78
Attorney, Agent or Firm:
Masaki Goto
Masaaki Iida
Jun Sudo
Masaaki Iida
Jun Sudo