| 摘要 |
A retractable caster adapted to be secured, for example, to the legs of a power tool support stand so that with the casters in their lowered positions, the stand is rollingly supported on the casters, and with the casters raised, the support stand rests firmly and solidly on the floor. The retractable caster includes a rod which extends outwardly from the caster, the rod being engageable by the operator's foot to lower the caster into engagement with the floor, to lift the support stand clear of the floor, and to lock the caster in its lowered position with the stand rollingly supported on the caster.
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