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Operating means for a chuck

  • US 4,386,879 A
  • Filed: 04/20/1981
  • Issued: 06/07/1983
  • Est. Priority Date: 04/20/1981
  • Status: Expired due to Fees
First Claim
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1. In a hand tool having a chuck with tool gripping elements, a collar in which said elements are movably supported, and a ring gear rotatable on the collar, said ring gear having bevel teeth engageable by a toothed chuck operator to rotate said ring selectively in a forward or reverse direction to tighten or loosen the tool gripping elements on a tool spindle, an improved chuck operator comprising, in combination:

  • ring gear engaging means permanently supported on the chuck collar and movable on the collar to rotate the ring gear selectively in a forward or reverse direction;

    and means permitting manual movement of the engaging means into and out of engagement with the ring gear teeth.

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