structure of rotary brush for car wash installations, with groups of bristles of different lengths and arranged in a fashion to operate on the bodywork of a motor vehicle.according to a movement formally sinusoiale.

摘要

A rotary brush for a motor vehicle washing installation has a plurality of tufts of fibres (5,7,8) arranged in two sets of groups, namely a first set of groups of longer fibres (7) and a second set of groups of shorter fibres (8). The groups are effectively continuous endless rows of fibres extending circumferentially around a central core (9), adjacent rows (7,8) being of different length fibres. and the rows themselves being inclined to the plane perpendicular to the axis of the core so that as the brush is rotated the rows appear to perform an undulating movement axially of the brush. The fibres (5,7,8) are carried on rectangular strip-like flexible elements (2) which are wrapped around the core (9) in longitudinally adjacent positions, and on the strip-like elements the fibres of different lengths are arranged in triangular areas.