Abstract: A rotating brush assembly for a street sweeper utilizes a hub to connect a hydraulic pump to a rotatable brush plate. A collar on the hub extends upwardly from a base flange and a tapered bore extends through the collar and the base flange and receives a mating tapered portion of a rotatable shaft of the pump. A downwardly extending rim on the bottom of the base flange locates the hub relative to a central aperture in the brush plate. The bottom of the base flange includes a recess which extends upwardly from the rim. The tapered bore communicates with the recess. The recess receives a threaded bottom portion of the rotatable shaft of the pump and a nut which is disposed on the threaded portion of the pump shaft.

Abstract: A plate for a brush apparatus for a street sweeper has an alignment hole which is used to align a brush segment for securing the brush segment to the plate. A clamp assembly moves downwardly to allow a used brush segment to be removed and moves upwardly to secure a brush segment to the plate. Rotation of a bolt, the head of which is on the top of the plate, moves the clamp assembly upwardly and downwardly. An alignment hole in the brush segment is aligned with the alignment hole in the plate. A pin on the clamp assembly extends into the alignment hole in the brush segment. Shelf elements on the bottom of the plate help hold brush segments.

Abstract: Rotary brush apparatus usable in the environment of a street sweeper includes a generally circular plate to which are secured brush segments. The brush segments are secured to the plate by pins and lock plates movable vertically upwardly in response to rotation of a bolt. The use of the pin and bolt elements allow for the quick change of the brush segments. The lock plates move vertically upwardly and downwardly and are locked in place to keep from rotating by guide elements used for alignment purposes. Apertures in the plate allow for the visual alignment of the brush segments. Pins extend through apertures in the brush segments. The pins may be secured to the lock plates or may be free pins insertable through both the brush segments and apertures in the lock plates.

Abstract: Rotary brush apparatus usable in the environment of a street sweeper includes a generally circular plate to which are secured brush segments. The brush segments are secured to the plate by pins on plates movable vertically upwardly in response to rotation of a bolt. The use of the pin and bolt elements allow for the quick change of the brush segments. The pins move vertically upwardly and downwardly and are locked in place to keep from rotating by guide elements used for alignment purposes. Apertures in the plate allow for the visual alignment of the brush segments.