Hammer release apparatus
AssigneeHeckler & Koch GmbH
InventorsManfred Guhring, Rudi Beckmann
Life of this patent
Estimating the term…
Abstract
A hammer release apparatus for a hand held firearm which reduces the force required to discharge the firearm is disclosed which includes a hammer, a pivotably mounted trigger, and a restraining lever. The restraining lever engages the cocked hammer which is biased towards a firing position by a hammer spring. The restraining lever counteracts the force of the hammer spring to reduce the pull resistance associated with the trigger of the firearm.
Claims20
For use with a firearm, a hammer release apparatus comprising:
- a pivotably mounted hammer including a stop notch, and a projection;
- a hammer spring operably connected to the hammer for generating a rotational force biasing the hammer from a cocked position toward a firing position;
- a pivotably mounted trigger having an engagement nose disposed at one end;
- a trigger spring operably coupled to the trigger for biasing the trigger to a rest position, the trigger being actuatable, against a force of the trigger spring from a rest position into a depressed position;
- a pivotably mounted trigger lever having one end disposed to engage the stop notch of the hammer, and an opposed end disposed to engage the trigger engagement nose;
- a pivotably mounted restraining apparatus having a catch disposed to restrainingly engage the projection of the hammer;
- and
- a restraining spring operably connected to the restraining apparatus and generating a force counter to the rotational force of the hammer spring.
For use with a firearm, an apparatus for reducing a pull resistance associated with the firing of the firearm comprising:
- a trigger positioned for movement between a rest position and a depressed position;
- a hammer adapted to move between a cocked position and a firing position when the trigger enters the depressed position;
- a hammer spring biasing the hammer towards the firing position, the hammer spring producing at least a portion of the pull resistence associated with pulling the trigger;
- a restraining lever operatively engaging the hammer;
- and
- a retraining spring cooperating with the restraining lever to reduce the pull resistance.
A firearm comprising:
- a trigger positioned for movement between a rest position and a depressed position;
- a hammer adapted to move between a cocked position and a firing position when the trigger enters the depressed position;
- a hammer spring biasing the hammer towards the firing position, the hammer spring producing at lease a portion of a pull resistence associated with pulling the trigger;
- a restraining lever operatively engaging the hammer;
- and
- a restraining spring cooperating with the restraining lever to reduce the pull resistance.
A method of reducing a pull resistance associated with firing a firearm comprising the steps of:
- biasing a hammer towards a fired position;
- securing the hammer in a cocked position to thereby create a pull resistence associated with a trigger operatively engaging the hammer;
- and
- applying a restraining force to the hammer to at least partially counteract the pull resistance.
Dependencies are inferred from the claim text.