Brush mounting means

Claim 1

For street sweeping applications, a mounting plate for rotatable mounting on a street-sweeping machine having a groove defined by converging surfaces extending peripherally about said plate and converging inward in cross section along a plane including the rotational axis location, a plurality of bristlemounting members including converging surfaces shaped to be substantially complementary to the converging surfaces of said groove, said converging surfaces forming an extent of the periphery of said groove; said bristle-mounting members being dimensioned so that they may be wedged with a movement toward said rotation axis into a position where said bristle-mounting member converging surfaces are pressing against said groove-defining converging surfaces; said bristle-mounting members being dimensioned so that a predetemmined number of such members may be combined to extend around said peripheral groove; means for clamping said bristle-mounting members into position with said bristle-mounting member converging surfaces pressing against said groove-defining converging surfaces; said clamping means comprising at least one rod corresponding to each bristle mounting member, said rod being mounted on said mounting plate to be slidable toward and away from said rotational axis, such rod having at its outer end means for coupling to a bristle-mounting member, said coupling means being designed and constructed so that movement of said rod toward said rotation axis draws the corresponding bristle mounting member into said wedged position, said rod adjacent its inner end being pivotally connected to a cam member, said cam member being designed to bear on a surface connected to said bristle mounting member, said cam being designed to move between a first position and a second position relative to said bristle mounting member while bearing on said surface and being designed in movement from said first to said second position to move said rod toward said rotation axis to draw said bristle mounted member into said wedged position; said birstle-mounting members carrying bristles oriented and mounted for sweeping when said mounting members are so clamped and said mounting plate is mounted on a street-sweeping machine.