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1. (WO2017189439) CRANE WITH ROTARY LOCKING MECHANISM

Pub. No.:    WO/2017/189439    International Application No.:    PCT/US2017/029149
Publication Date: Fri Nov 03 00:59:59 CET 2017 International Filing Date: Tue Apr 25 01:59:59 CEST 2017
IPC: B66C 23/70
Applicants: MANITOWOC CRANE COMPANIES, LLC
Inventors: SCHOONMAKER, Stephen, J.
Title: CRANE WITH ROTARY LOCKING MECHANISM
Abstract:
A telescoping crane boom (12) having a rotary locking mechanism. A motor (44) drives a rotating element (46) about an axis parallel to the axis of the crane boom. The rotation of the rotating member causes a pin (52) to selectively lock and unlock sections of the telescoping crane boom.