Title:
CONSTRUCTION MACHINERY
Document Type and Number:
Japanese Patent JP3030241
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To make it possible to drive a hydraulic pump without using any engine causing environmental trouble such as noises, exhaust gas, etc., and with batteries instead of using an outside power supply system having many restrictions thereon.
SOLUTION: A construction machinery is so constituted that an operation machine 17 is loaded to a machine main body 14 equipped with a traveling device. A battery box 22 incorporating a large number of batteries 22b therein is mounted to the machine main body 14 in a detachable manner. A DC motor 23 operated with the batteries 22b incorporated in the battery box 22 and a hydraulic pump 24 driven with the DC motor 23 are provided to the inside of the rear hood 26. The operation machine 17 is operated with a hydraulic actuator having operating fluid supplied from a hydraulic tank 27 with the hydraulic pump 24. A hydraulic valve 28 is controlled with commanding signals inputted from an outside radio controller or wire controller to control operating fluid supplied to the hydraulic actuator.
Inventors:
Seiro Sasaki
Shinya Hirose
Tatsuya Murase
Shinya Hirose
Tatsuya Murase
Application Number:
JP30948195A
Publication Date:
April 10, 2000
Filing Date:
November 28, 1995
Export Citation:
Assignee:
New Caterpillar Mitsubishi Corporation
International Classes:
E02F9/20; E02F9/00; E02F9/18; (IPC1-7): E02F9/00; E02F9/20
Domestic Patent References:
| JP7166583A | ||||
| JP62138761U | ||||
| JP55133002U |
Attorney, Agent or Firm:
Kabazawa Xiang (2 people outside)