| 摘要 |
A telescoping boom is disclosed in combination with a pumper truck. The boom sections are hollow tubular members, and floating guide shoes mount the outer boom section for movement relative to the inner boom section. A nozzle is provided at the end of the outer boom section, and telescoping conduit sections are secured in external relationship to be boom for conveying water to the nozzle. Primary control means is provided at the rear of the truck for remotely controlling the boom and nozzle. Hydraulically actuated cable means are connected between the boom sections for extension and retraction of the outer boom section. Secondary control means is provided adjacent the end of the outer boom section for the nozzle, and a telescoping ladder is associated with the boom to provide access to the secondary control means. The telescoping ladder also enables a fireman to carry out normal fire fighting and rescue activities in elevated and difficult to reach positions. A flexible electrical cable and flexible hydraulic conduits are mounted within the boom structure for providing power to the control means at the end of the outer boom section, and the cable and conduits are movable as the outer boom section is extended. |
