Patent ID: 11866309
Assignee: MANITOWOC CRANE GROUP FRANCE
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 17:
18. The lifting method according to claim 17, wherein:
in the connection phase, the lower reeve block is raised for a relative approach between the two reeve blocks until the upper reeve block reaches the high stop on the jib and the bolt abuts against the catch in order to make the bolt slide in the first sliding direction and make it pivot concomitantly into the first rotation of the bolt, and then said lower reeve block is lowered so that said bolt slides in the second sliding direction urged by the elastic biasing element and concomitantly pivots into the concomitant second rotation of the bolt, thereby setting the bolt in the locking state; and
in the disconnection phase, the lower reeve block is raised until the upper reeve block reaches the high stop on the jib and the bolt abuts against the catch in order to make the bolt slide in the first sliding direction and make it pivot concomitantly into the concomitant first rotation of the bolt, and then said lower reeve block is lowered so that said bolt slides in the second sliding direction urged by the elastic biasing element and concomitantly pivots into the second rotation of the bolt, thereby setting the bolt in the unlocking state.