| 摘要 |
One or more auxiliary brushes are floatingly mounted for sweeping litter from either a carpeted or smooth floor into the path of the main transverse sweeper brush means. The drive for the auxiliary brushes is internal and does not depend upon rotation of the sweeper's main drive mechanism. A caster device drives the auxiliary brushes through a non-circular connection having substantial play therein so that the brushes will readily position themselves to conform to the contour of the surface being swept. Means are provided to limit deformation of the brush bristles against the floor. |
