Trigger mechanism for a firearm
A trigger mechanism according to various aspects of the present technology is configured to provide a more effective method of securing a hammer after a firearm is fired. Various embodiments of the trigger mechanism comprise a main sear and a sear link that are used to mechanically link a trigger body to the hammer. The main sear maintains engagement with the hammer throughout an actuation cycle and is configured to catch the hammer as it rotates after striking a round of ammunition.
1. A trigger mechanism, comprising:
a trigger body, comprising:
a downwardly extending trigger section;
a first receiving section positioned in a forward portion of the trigger body; and
a second receiving section disposed between the trigger section and the first receiving section in the forward portion of the trigger body;
a main sear, comprising:
an insertion end configured to be positioned within the first receiving section;
a catch point opposite the insertion end; and
a downwardly extending link point;
a sear link, comprising:
a first end portion configured to be positioned within the second receiving section; and
a second end portion configured to engage the link point; and
a hammer comprising a recess disposed along an outer surface of the hammer and configured to engage the catch point.
2. A trigger mechanism according to claim 1 , further comprising a housing wherein:
the housing is coupled to a pivot point of the trigger body by a first sleeve; and
the housing is coupled to an end portion of the hammer by a second sleeve.
3. A trigger mechanism according to claim 2 , further comprising a main sear spring disposed within a forward portion of the housing and configured to act upon a lower surface of the main sear.
4. A trigger mechanism according to claim 2 , wherein the housing comprises a trigger stop positioned within a rear portion of the housing and configured to engage an upper surface of the trigger body after the trigger is pulled.
5. A trigger mechanism according to claim 2 , further comprising a hammer spring coupled around the second sleeve between the housing and the hammer.
6. A trigger mechanism according to claim 5 , further comprising a second hammer spring coupled around the second sleeve between the housing and the hammer immediately adjacent to the first hammer spring.
7. A trigger mechanism according to claim 1 , further comprising a set spring disposed within the trigger body and configured to act upon an upper surface of the sear link.
8. A trigger mechanism according to claim 7 , further comprising a main sear spring disposed within the trigger body, wherein:
the main sear spring comprises a larger diameter than the set spring and is positioned over the set spring and is configured to act upon an upper surface of the main sear; and
the main sear comprises a through hole to allow the set spring to pass through to engage the sear link.
9. A trigger mechanism, comprising:
a trigger body having a pivot point;
a main sear coupled to the trigger body, comprising:
a catch point; and
a downwardly extending link point;
a sear link coupled to the trigger body below the main sear, comprising an end portion configured to engage the link point;
a hammer comprising a recessed section configured to engage the catch point; and
housing configured to:
receive the trigger body and be coupled to the pivot point by a first sleeve; and
receive and be coupled to an end portion of the hammer by a second sleeve.
10. A trigger mechanism according to claim 9 , further comprising a main sear spring disposed within a forward portion of the housing and configured to act upon a lower surface of the main sear.
11. A trigger mechanism according to claim 9 , wherein the housing comprises a trigger stop positioned within a rear portion of the housing and configured to engage an upper surface of the trigger body after the trigger is pulled.
12. A trigger mechanism according to claim 9 , further comprising a hammer spring coupled around the second sleeve between the housing and the hammer.
13. A trigger mechanism according to claim 12 , further comprising a second hammer spring coupled around the second sleeve between the housing and the hammer immediately adjacent to the first hammer spring.
14. A trigger mechanism according to claim 9 , further comprising a set spring disposed within the trigger body and configured to act upon an upper surface of the sear link.
15. A trigger mechanism according to claim 14 further comprising a main sear spring disposed within the trigger body, wherein:
the main sear spring comprises a larger diameter than the set spring and is positioned over the set spring and acts upon an upper surface of the main sear; and
the main sear comprises a through hole to allow the set spring to pass through to engage the sear link.