Loading type truck crane
AssigneeTadano Ltd.
InventorTomokazu Goto
Life of this patent
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Abstract
There is provided a loading type truck crane that includes an outrigger device including a right outrigger and a left outrigger that are mounted on a vehicle and are capable of extending and retracting in a vehicle width direction of the vehicle, and a crane device that includes a turnable boom and is mounted on the vehicle. A control device that is provided in the truck crane calculates a critical working radius of the crane device on a basis of a ground-contact reaction force of the outrigger device, and implements safety control related to at least one of a lowering operation and an extension operation of the boom by the crane device on a basis of the calculated critical working radius.
Claims6
A loading type truck crane comprising:
- an outrigger device including a right outrigger and a left outrigger that are mounted on a vehicle and are capable of extending and retracting in a vehicle width direction of the vehicle;
- a crane device that includes a turnable boom and is mounted on the vehicle;
- and
- a control device that calculates a critical working radius of the crane device on a basis of a ground-contact reaction force of the outrigger device, and implements safety control related to at least one of a lowering operation and an extension operation of the boom by the crane device on a basis of the calculated critical working radius,
- wherein the safety control includes regulation control for regulating a lowering operation and an extension operation of the crane device.
Dependencies are inferred from the claim text.