公开(公告)号：US5570546A

公开(公告)日：1996-11-05

申请号：US509311

申请日：1995-07-31

申请人： Robert S. Butterworth ,  David O'Brien

发明人： Robert S. Butterworth ,  David O'Brien

IPC分类号： E04H12/34 ,  F21V21/38 ,  H01Q1/12

CPC分类号： F21V21/38 ,  E04H12/34 ,  H01Q1/1242

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.

摘要翻译： 沿着桅杆降低和提高电信设备的系统。 该系统包括桅杆杆，平台装置，框架装置，多个提升缆索，提升装置和过渡装置。 平台装置围绕桅杆杆的外表面并且可沿其长度移动。 平台装置被安排用于在其上安装电信设备。 框架装置附接在桅杆杆杆的开放的上端，并且包括滑轮装置，用于引导至少一个提升缆索的装置和用于引导至少一个电信电缆，即信号电缆或电力电缆的装置。 每个提升缆索具有连接到平台装置的第一端并且延伸穿过引导装置并且穿过桅杆杆的通道。 提升装置被固定到桅杆杆的下端，并且被提供用于选择性地升高和降低平台装置。 滑轮装置包括具有自由端的绞盘电缆。 过渡装置位于桅杆杆的通道内，并被提供以将升降缆索的第二端连接到绞盘缆索的自由端。 过渡装置还提供用于在其中保留至少一根电信电缆的装置。