| 摘要 |
An abrasive tool assembly (10) for treating a surface can include a universally pivoting pad assembly (12), an adaptor assembly (14) and/or a rotational device (16). The adaptor assembly (14) transfers a rotational force of the rotational device (16) to the pad assembly (12) includes a shaft section (32), a threaded section (34) and one or more tighteners (36). The shaft section (32) is secured to the rotational device (16). The threaded section (34) is secured to the pad assembly (12). Each tightener (36) moves between a loosened position and a tightened position wherein the tightener frictionally secures the pad assembly (12) against the threaded section (34) of the adaptor assembly (14). In one embodiment, the threaded section (34) is externally threaded. In another embodiment, the threaded section (34) is internally threaded. The shaft section (32) has a longitudinal axis (47). In one embodiment, the tightener (36) moves between the loosened position and the tightened position in a direction that is non-perpendicular to the longitudinal axis (47) of the shaft section (32). In another embodiment the tightener (36) moves in a direction that is substantially parallel to the longitudinal axis (47).
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