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US 12,384,662 B2Granted
Crane
AssigneeSumitomo Heavy Industries Construction Cranes Co., Ltd.
InventorTadashi Miyazaki
Life of this patent
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Abstract
Provides is a crane in which the manipulation according to an operator's intention is more easily performed. The crane includes a manipulating member capable of performing at least one of an accelerator manipulation for increasing or decreasing a rotational speed of an engine and a turning manipulation of a turning body. A predetermined operation is stopped in a case where an operator is not touching the manipulating member and the predetermined operation (turning operation, traveling operation, or the like) of the crane is performed.
Claims18
A crane comprising:
- an undercarriage;
- a turning body turnably provided on the undercarriage;
- a boom pivotably supported by the turning body;
- a first manipulating lever configured to perform both an accelerator manipulation for increasing or decreasing a rotational speed of an engine and a turning manipulation of the turning body;
- and
- a second manipulating lever that is separate from the first manipulating lever and configured to perform a manipulation different from the accelerator manipulation and the turning manipulation of the turning body,
- wherein in a case where an operator is not touching the first manipulating lever, and a predetermined operation of the crane using the second manipulating lever is being performed, the predetermined operation using the second manipulating lever is stopped.
4 more elements
Dependencies are inferred from the claim text.