Work machine
AssigneeTadano Ltd.
InventorsTsukasa Fujimoto, Kenichi Nagakane
Life of this patent
Estimating the term…
Abstract
This work machine comprises: a plurality of booms that extend and retract with the power of an actuator; a first pin that is moved by a first spring to connect adjacent booms and is moved by power of a motor to release a connection of the adjacent booms; a second pin that is moved by a second spring to connect the boom and the actuator and is moved by power of the motor to release a connection of the boom and the actuator; and a circuit that is configured so that when the first pin is moved by the first spring or when the second pin is moved by the second spring, a current based on motor idling caused by the movement of the first pin or second pin is not generated.
Claims6
A work machine, comprising:
- a plurality of booms that extend and retract by power of an actuator;
- a first pin that is moved by a first spring to connect adjacent booms, and is moved by power of a motor to release a connection of the adjacent booms;
- a second pin that is moved by a second spring to connect the boom and the actuator, and is moved by power of the motor to release a connection of the boom and the actuator;
- and
- a circuit that is configured so that when the first pin is moved by the first spring or the second pin is moved by the second spring, no current flows through the motor when the motor idles due to the movement of the first pin or the second pin.
Dependencies are inferred from the claim text.