초록 ▼

A semiautomatic firing mechanism for an autoloading firearm. A generally C-shaped hammer is pivotably mounted behind a bolt, with a transversely-extending sear piece located below the rearwardly-facing open side of the hammer. The open ends of the hammer provide ledges selectively engageable with pr

A semiautomatic firing mechanism for an autoloading firearm. A generally C-shaped hammer is pivotably mounted behind a bolt, with a transversely-extending sear piece located below the rearwardly-facing open side of the hammer. The open ends of the hammer provide ledges selectively engageable with primary and secondary sear surfaces on the sear piece.

대표청구항 ▼

Firing mechanism for a firearm, comprising: hammer means movable along a path including a firing position and a cocked position; means biasing said hammer means for pivotal movement toward the firing position; said hammer means having first and second confronting surfaces defining an opening in the

Firing mechanism for a firearm, comprising: hammer means movable along a path including a firing position and a cocked position; means biasing said hammer means for pivotal movement toward the firing position; said hammer means having first and second confronting surfaces defining an opening in the hammer means, and having primary and secondary sear engaging surfaces, said primary sear engaging surface adjacent said first confronting surface, said secondary sear engaging surface adjacent said second confronting surface, said primary and secondary sear engaging surfaces positioned in mutually spaced apart relation across said opening; sear means disposed between said primary and secondary sear engaging surfaces, and selectably movable between a first position and a second position; said sear means having a primary sear surface located for engagement by said primary sear engaging surface as said hammer means is moved to the cocked position, so as to retain the hammer means in the cocked position when the sear means is in said first position; said sear means having a secondary sear surface located for engagement by said secondary sear engaging surface as said hammer means is pivoted beyond the cocked position, with said sear means moved to said second position so that the primary sear engaging surface cannot engage the sear means, thereby retaining the hammer means behind the cocked position; and said primary and secondary sear surfaces being located on said sear means so that said hammer means pivots to be retained at the cocked position by said primary sear surface when the sear means returns to the first position, thereby maintaining said hammer means ready to pivot to the firing position when said sear means next is moved to the second position.