Chuck with gripping mechanism stop

  • US 5,913,524 A
  • Filed: 10/08/1997
  • Issued: 06/22/1999
  • Est. Priority Date: 10/08/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. A chuck for use with a manual or powered driver having a drive shaft, said chuck comprising:

  • a generally cylindrical body, said body having a forward section and a rearward section, said rearward section adapted to mate with said drive shaft of said driver;

    a gripping mechanism actuatable to a closed position in which said gripping mechanism axially and rotationally retains a tool with respect to said body and to an open position in which said gripping mechanism does not so retain a tool; and

    an annular nut disposed about said body and having a threaded portion in threaded engagement with said gripping mechanism so that rotation of said nut about said body in a closing direction actuates said gripping mechanism to said closed position and rotation of said nut in an opening direction, opposite said closing direction, actuates said gripping mechanism to said open position,wherein one of said nut and said gripping mechanism includes a rotational stop which, when said gripping mechanism reaches a predetermined position while being actuated by rotation of said nut in said opening direction, abuts the other of said nut and said gripping mechanism in a rotational direction with respect to the axis of said body to oppose further rotation of nut in said opening direction.

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