| 摘要 |
A fire truck having a flat bed includes a conveyor system for loading a number of interchangeable firefighting modules onto the bed. The conveyor system comprises a frame carrying a number of rollers or casters which allow the units to be easily slid on and off the bed. A pneumatic, hydraulic, electric, or mechanical mechanism is provided for raising and lowering the roller frame to engage or disengage the flat bottoms of the firefighting modules. Among the various modules disclosed are a hose module having fold-down chutes which lay the hose out alongside the truck as the truck moves ahead, and a tank module, which is coupled by quick-connect hoses to the intake and discharge lines of a pump carried in the truck bed. The intake and discharge lines of the pump may double as chassis rails for the truck. Also disclosed is a ladder carrier device which pivots downwardly and rearwardly to let the ladder slide down under its own weight after a sufficient length of the ladder has been pulled.
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