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Firearm trigger mechanism

  • US 4,505,182 A
  • Filed: 06/25/1984
  • Issued: 03/19/1985
  • Est. Priority Date: 12/11/1980
  • Status: Expired due to Fees
First Claim
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1. A gun including a trigger mechanism, a reciprocal bolt means, and a lug on said bolt means, said trigger mechanism comprising a pivotally mounted trigger, a pivotal sear connected to be rotated by said trigger, said sear having a rear part which is provided to selectively engage said lug, and a notch in an upper surface of the sear (adjacent said bolt means, said notch being arranged to cooperate and engage) for engaging with said lug when said lug is not engaged with said sear rear part, an axis of said trigger about which said trigger is rotatable, and mounted on said axis a member arranged to cooperate with a portion of the sear, spring bias means for said member so that said member moves with said trigger, (whereby) the trigger mechanism being arranged such that when the trigger is pulled to rotate the sear in the first direction out of engagement with said lug the member is initially prevented from moving with the trigger by the sear portion and when the lug is released by the sear the sear is further rotated in said first direction by the lug contacting the sear upper surface to free the member to move toward the trigger and under the sear portion, thereby preventing the sear from rotating in a direction counter to said first direction until the trigger is released.

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