Importance

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Abstract

An abrasive throwing wheel assembly includes a runnerhead disposed within a housing and arranged to be rotatably driven about a center rotational axis. The runnerhead includes a plurality of radially extending dovetail shaped channels. In one embodiment, the channels each have a slot extending at an angle relative to a radially extending longitudinal axis of the channel. A throwing blade includes a throwing portion and a dovetail shaped base portion configured to be removably received within one of the plurality of dovetail shaped channels. In one embodiment, the base portion includes a slanted surface configured to extend at a same angle as the slot relative to the radially extending longitudinal axis of the channel when inserted within the channel. A U-shaped locking pin is configured to be received in the slot to prevent radially outward movement of the throwing blade. In another embodiment, the runnerhead channels include an L-shaped slot in a back surface thereof and the base portion of the throwing blade includes a slanted surface and a locking face, the locking face being arranged perpendicular to the slanted surface and substantially parallel to a radially extending longitudinal axis defined by the throwing portion. A substantially L-shaped locking pin is configured to be received in the slot to secure the base portion of the throwing blade within the channel.

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First Claim