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Locking mechanism for a rotary power machine

  • US 4,467,896 A
  • Filed: 06/17/1983
  • Issued: 08/28/1984
  • Est. Priority Date: 06/17/1983
  • Status: Expired due to Term
First Claim
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1. A rotary power tool having a locking mechanism for selectively locking rotatable power transmitting components of the tool, said tool including a source of rotary power and an output spindle contained within a housing, said rotary power tool comprising:

  • at least one 1-piece rotatable power transmitting component connected between the source of rotary power and the output spindle, said power transmitted component having at least one lock pin-receiving bore therein;

    a locking pin means mounted on the tool housing for movement between a retracted, non-locking position and an extended, locking position in which said locking pin is receivable within said lock pin-receiving bore to thereby lock the power transmitting components from motion; and

    ramp means formed as part of said power transmitting component and positioned adjacent to said lock pin-receiving bore for engagement with an extended lock pin during rotation of said power transmitting component in a first direction and for moving said lock pin toward its non-locking position.

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