Trigger mechanism for a firearm

Patent metadata

Field	Value
Publication number	US-2017191778-A1
Application number	US-201715461912-A
Country	US
Kind code	A1
Filing date	Mar 17, 2017
Priority date	Dec 19, 2014
Publication date	Jul 6, 2017
Grant date	—

Abstract

A trigger mechanism for a firearm provides modified and/or adjustable trigger pull length, reduced sear pressure, reduced reset trigger slap, and/or improved engagement of the trigger safety.

First claim

1 - 24 . (canceled)

25 . A trigger mechanism for a firearm receiver, the trigger mechanism comprising:
a bow having a forward most position and a rearward most position in the firearm receiver; a hammer; and a trigger element comprising a receiver interface, a sear arm, a trigger sear extending from the sear arm, and a hammer engagement edge.

26 . The trigger mechanism of claim 25 further comprising a disconnector comprising a disconnector sear and a second hammer engagement edge, wherein the trigger element hammer engagement edge is a first hammer engagement edge.

27 . The trigger mechanism of claim 26 , wherein the second hammer engagement edge is as high as at least a portion of the trigger sear when the bow is in the forward most position.

28 . The trigger mechanism of claim 26 , wherein the second hammer engagement edge is above at least a portion of the trigger sear when the bow is in the forward most position.

29 . The trigger mechanism of claim 26 , wherein a shortest vertical distance between the first hammer engagement edge and the second hammer engagement edge is in a range from about 0.5 mm to about 5 mm.

30 . The trigger mechanism of claim 26 , wherein a shortest vertical distance between the first hammer engagement edge and the second hammer engagement edge does not exceed 3 mm.

31 . The trigger mechanism of claim 26 , wherein the disconnector comprises a rounded forward edge.

32 . The trigger mechanism of claim 26 , wherein a hammer engagement surface extends from the second hammer engagement edge to form an underside of the disconnector sear.

33 . The trigger mechanism of claim 26 , wherein the second hammer engagement edge is a forward most edge of the hammer engagement surface when the disconnector is mounted in the firearm receiver.

34 . The trigger mechanism of claim 25 , wherein the trigger element further comprises a modified receiver interface.

35 . The trigger mechanism of claim 25 , wherein the hammer comprises a recess defined on an underneath side of the hammer, wherein the recess is configured to receive a hammer spring.

36 . A firearm comprising the trigger mechanism of claim 25 .

37 . A trigger mechanism for a firearm receiver, the trigger mechanism comprising:
a bow having a forward most position and rearward most position in the firearm receiver; a hammer; a trigger element having a receiver interface, wherein the receiver interface at least partially determines an angle between the forward most position of the bow and the rearward most position of the bow; and a safety mechanism, wherein the trigger element further includes a cavity defined by a housing, and wherein the cavity is aligned with the safety mechanism; wherein the safety mechanism includes a safety lever and a safety adjustor insert, wherein the cavity of the trigger element houses the safety adjustor insert, the safety adjustor insert extending above an upper limit of the cavity, and wherein the safety adjustor insert is configured to engage the safety lever.

38 . The trigger mechanism of claim 37 , wherein the safety adjustor insert is a pin or a screw.

39 . The trigger mechanism of claim 37 , wherein the distance by which the safety adjustor inset extends above the upper limit of the cavity is adjustable.

40 . The trigger mechanism of claim 37 , wherein the receiver interface of the trigger element is adjustable, and wherein adjusting the receiver interface changes the angle between the forward most position of the bow and the rearward most position of the bow

41 . The trigger mechanism of claim 40 , wherein the receiver interface of the trigger element prevents the angle between the forward most position and the rearward most position of the bow from exceeding about at least one of 5 degrees and 10 degrees.

42 . The trigger mechanism of claim 37 , wherein the hammer includes a trigger sear engagement surface, and wherein the trigger element also includes a sear arm and a trigger sear extending from the sear arm, the trigger sear having a second hammer engagement surface and a second hammer engagement edge at the rear of the hammer engagement surface, wherein the second hammer engagement surface is configured to engage at least a portion of the trigger sear engagement surface of the hammer.

43 . The trigger mechanism of claim 42 , wherein the hammer is configured to slide off the second hammer engagement surface of the trigger sear to fire a firearm, and wherein a distance by which the hammer slides off the second hammer engagement surface to fire the firearm does not exceed about 1.5 mm.

44 . A firearm comprising the trigger mechanism of claim 37 .

Assignees

• Whg Properties Llc

Inventors

• Geissele William H

Classifications

• F41A17/46

  Trigger safeties, i.e. means for preventing trigger movement (F41A17/02 - F41A17/40 take precedence) · CPC title

• F41A19/12

  Sears; Sear mountings · CPC title

• F41A19/16

  Adjustable firing mechanisms; Trigger mechanisms with adjustable trigger pull (F41A19/17 takes precedence) · CPC title

• F41A19/14

  Hammers, i.e. pivotably-mounted striker elements; Hammer mountings · CPC title

• F41A19/10 Primary

  Triggers; Trigger mountings · CPC title