Road sweeping apparatus and method of making a refuse collecting nozzle.

摘要

A self-propelled road sweeper has brush gear comprising a narrow sweep brush (26) and a wide sweep brush (28), together with an associated refuse collecting nozzle (22). Narrow sweep brush (26) is mounted on a linkage comprising pivotally connected inner and outer mounting links (36) and (38) controlled by pneumatic actuators (52, 54) and (56) whereby the position of the brush and its downward loading is controlled. The brush can be tilted by actuator (56). Link (36) is connected to the frame (18) through a resilient mounting (74) permitting the brush to yield under impact. The application also discloses details of the mounting and structure of wide sweep brush (28), and of the mounting and fabrication of nozzle (22) and of a mechanism for tilting the nozzle.