Rotor with wear-resistant core for a power abrading or polishing tool
AssigneeHutchins Manufacturing Company
InventorDonald H. Hutchins
Life of this patent
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Abstract
A power driven abrading or polishing tool is provided that includes a motor having a rotor; a carrier part having a shaft and a key extending from the shaft; and an abrading or polishing head attached to the carrier part. The rotor includes an outer body of a first material and a core of a second material having a resistance to wear greater than the first material. The core includes an inner passage with a keyway which receives the key on the shaft of the carrier part such that a rotation of the rotor is transmitted to the carrier part and the head.
Claims24
A power driven abrading or polishing tool comprising:
- a motor having a rotor;
- a carrier part having a shaft and a key extending from the shaft;
- and
- an abrading or polishing head attached to the carrier part;
- wherein the rotor comprises an outer body comprised of a first material and a core of a second material having a resistance to wear greater than the first material, and wherein the core comprises an inner passage with a keyway which receives the key on the shaft of the carrier part such that a rotation of the rotor is transmitted to the carrier part and the head.
A power driven orbital abrading or polishing tool comprising:
- a motor having a rotor;
- a carrier part having a shaft and a key extending from the shaft;
- and
- an abrading or polishing head attached to the carrier part;
- wherein the rotor further comprises:
- a metallic core and having an inner passage with a keyway that receives the key on the shaft of the carrier part such that a rotation of the rotor is transmitted to the carrier part and the head, and
- a generally cylindrically-shaped outer body disposed in surrounding relation to the core and comprised of a material having a resistance to wear lower than the metallic core.
Dependencies are inferred from the claim text.