Erroneous operation prevention device for hook storage device of crane

摘要

(57) Abstract Objective In the hook enclosure of the crane, the hookWhen storing job other than solenoid valve for winch hoistError manipulating the solenoid valve for machine manipulation, it does not operate,The sea urchin it does. Constitution In over-load cutout device 1 at the time of hook storage modosuiTo provide tsuchi 12, and the solenoid val for the winch hoistSolenoid valve for job machine manipulation other than bu 3 and prevention of overloadIn circuit with devices 1, at the time of hook storage prevention of job operationIt features that relay is provided.