Pivot Arm Trigger Assembly
OwnerArthur J. Elftmann, JR.inventor
Life of this patent
Estimating the term…
Abstract
Adjustability of trigger pull force is enable by the use of a spring interfacing with a trigger shoe counterweight. The spring force is adjustable by use of a set screw interfacing with the spring. A pivot arm member acts between a trigger shoe counterweight and a firing pin release arm to fix the ratio of trigger shoe pull force and firing pin release arm force.
Claims18
1-7. (canceled)
A trigger for use in a weapon comprising;
- a firing pin release arm configured to cause the weapon to fire when released, wherein the firing pin release arm includes a downward projection;
- a pivot arm that is configured to rotate within a housing and acts as an interface between a trigger shoe and the firing pin release arm, the pivot arm including (1) a top projection in contact with the downward projection of the firing pin release arm before the trigger shoe is pulled and (2) a bottom projection in contact with a firing sear of the trigger shoe before the trigger shoe is pulled;
- wherein the trigger shoe is configured to release, when pulled, the bottom projection from its position in contact with the firing sear, thereby causing the pivot arm to rotate, disengage the top projection from the downward projection of the firing pin release arm, and release the firing pin release arm.
A method of firing a weapon with a trigger that includes (1) a firing pin release arm configured to cause the weapon to fire when released, wherein the firing pin release arm includes a downward projection, and (2) a pivot arm that is configured to rotate within a housing and acts as an interface between a trigger shoe and the firing pin release arm, the pivot arm including (i) a top projection in contact with the downward projection of the firing pin release arm before the trigger shoe is pulled and (ii) a bottom projection in contact with a firing sear of the trigger shoe before the trigger shoe is pulled, the method comprising:
- pulling the trigger to release the bottom projection from its position in contact with the firing sear, thereby causing the pivot arm to rotate, disengage the top projection from the downward projection of the firing pin release arm, and release the firing pin release arm to fire the weapon.
Dependencies are inferred from the claim text.