The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 03, 1996
Filed:
Dec. 20, 1994
Shigeru Yamamoto, Hirakata, JP;
Shigenori Matsushita, Hirakata, JP;
Kazushi Nakata, Hirakata, JP;
Nobuhisa Kamikawa, Hirakata, JP;
Kabushiki Kaisha Komatsu Seisakusho, Tokyo, JP;
Abstract
A remote control apparatus of a construction machine in which steering control is performed by hydraulically controlling the steering clutches and the steering brakes, comprises remote operating unit for generating a first steering command for turning on or off the steering clutches of the construction machine and a second steering command for turning on or off the steering brakes of the construction machine, steering operation of the construction machine being controlled by the first and second steering commands; and a control unit provided in the construction machine, for performing a control in such a manner that when the first steering command becomes on, the steering clutches are released for a duration during which the first steering command is on, and when the second steering command becomes on in the duration during which the first steering command is on, hydraulic pressure of the steering brakes is gradually changed from a releasing side to a braking side with a predetermined gradient. With the control unit, operations can be smooth at the starting time and fine steering control can be realized.