Bulldozer
AssigneeKomatsu Ltd.
InventorsSatoru Shintani, Tomohiro Nakagawa, Ryouichi Nagasaka
Life of this patent
Estimating the term…
Abstract
A bulldozer includes a body, a drive unit, a ripper, an operating lever, a steering lever, and a controller. The ripper is attached to a rear part of the body and performs ripping work. The operating lever is for operating the ripper. The steering lever is for controlling a travel operation by the drive unit. The controller executes a first control of pulling the ripper up out of the ground and a second control of tilting back the ripper, when it is detected that the ripping work has been ended by operation of the operating lever and the steering lever.
Claims8
A bulldozer comprising:
- a body;
- a drive unit;
- a ripper that is attached to a rear part of the body and performs ripping work;
- an operating lever for operating the ripper;
- a steering lever for controlling a travel operation by the drive unit;
- and
- a controller that executes a first control of pulling the ripper up out of the ground and a second control of tilting back the ripper, when it is detected that the ripping work has been ended by operation of the operating lever and the steering lever.
A control method for driving a ripper, in which movement of a ripper attached to a rear of a body of a bulldozer is controlled, the method comprising:
- a first step in which the ripper is operated while the bulldozer is moving forward or is stopped;
- a second step in which the bulldozer is reversed and the ripper is raised;
- and
- a third step in which the ripper is automatically raised.
Dependencies are inferred from the claim text.