Street sweeper

Details Street sweeper Street sweeper

E - Fixed Constructions

01

H

15/79

E01H 1/00 (2006.01)

Patent

CA 1335233

A street sweeper utilizes a vertically extendable mast for elevating its hopper for dumping purposes. Additionally air springs are provided to the wheel suspension system so that the air springs, when inflated, elevate the chassis and street sweeping system for road travel. When deflated, the chassis is lowered into solid support on the suspension system to provide a more rigid suspension for improved street sweeping and hopper dumping operation. Also, the street sweeper has a conveyor for conveying the dirt from dirt collection means upwardly into the hopper. A second air spring having resilient chamber walls is provided to support the conveyor means in movable relation so that it may be rotated upwardly in travelling position by inflation of the air spring and lowered into operating position by deflation thereof. The conveyor is preferably suspended from the chassis by pivotally hanging links to permit the conveyor to move between raised and lowered positions. Also, the street sweeping system includes a rotary broom which is pivotally carried, and third adjustable air springs are provided to control the vertical position of the broom and its pressure against the ground by the air pressure in the resilient- walled third air springs.

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