发明名称 System for raising and lowering communications equipment
摘要 A system for lowering and raising telecommunications equipment along a mast pole. The system comprises a mast pole, a platform means, a frame means, a plurality of lift cables, a hoisting means and a transition means. The platform means surrounds the external surface of the mast pole and is moveable along the length thereof. The platform means is arranged for mounting of telecommunications equipment thereon. The frame means is attached at the open upper end of the mast pole shaft and comprises pulley means, means for guiding at least one lift cable and means for guiding at least one telecommunications cable, i.e., signal cable or power cable. Each lift cable has a first end connected to the platform means and extends through the guiding means and through the passageway of the mast pole. The hoisting means is secured to the lower end of the mast pole and is provided for selectively raising and lowering the platform means. The pulley means includes a winch cable having a free end. The transition means is located within the passageway of the mast pole and is provided to couple the second end of the lift cables to the free end of the winch cable. The transition means also provides a means for retaining at least one telecommunications cable therein.
申请公布号 US5570546(A) 申请公布日期 1996.11.05
申请号 US19950509311 申请日期 1995.07.31
申请人 AMERICAN HIGH MAST SYSTEMS, INC. 发明人 BUTTERWORTH, ROBERT S.;O'BRIEN, DAVID
分类号 E04H12/34;F21V21/38;H01Q1/12;(IPC1-7):E04H12/34 主分类号 E04H12/34
代理机构 代理人
主权项
地址