US3167877A - Trigger mechanism for a firearm - Google Patents

Trigger mechanism for a firearm Download PDF

Info

Publication number
US3167877A
US3167877A US236351A US23635162A US3167877A US 3167877 A US3167877 A US 3167877A US 236351 A US236351 A US 236351A US 23635162 A US23635162 A US 23635162A US 3167877 A US3167877 A US 3167877A
Authority
US
United States
Prior art keywords
arm
trigger
sear
hammer
spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US236351A
Other languages
English (en)
Inventor
Friedhelm G Jungeling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STAATSBEDRIJF ARTILLERIE INRICHTINGEN
STAATSBEDRIJF ARTILLERIE INRIC
Original Assignee
STAATSBEDRIJF ARTILLERIE INRIC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by STAATSBEDRIJF ARTILLERIE INRIC filed Critical STAATSBEDRIJF ARTILLERIE INRIC
Application granted granted Critical
Publication of US3167877A publication Critical patent/US3167877A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/42—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having at least one hammer

Definitions

  • the invention relates to a trigger mechanism for a rifle or like firearm, having the trigger loaded by a spring and maintained by said spring, in an inoperative position with its arm on an abutment face, said trigger being rotatable about an axis, on which a lever or sear is rotatably supported and slidable in longitudinal direction, said lever having its one arm cooperating with a cam on the hammer loaded by a spring for locking the hammer and its other arm being adapted to engage a projection on the arm of the trigger.
  • the invention has for its object to remove said drawback and according to the invention the sear at its end remote from the hammer is provided with a projection slidable against spring pressure.
  • the projection on the trigger arm cooperating with said sear may be slidable against the pressure of a spring. Due to pressure exerted on the sear by the spring of the hammer said spring loaded projection will be displaced against the pressure of its spring until the sear contacts the axis of the trigger, so that now the pressure exerted by the hammer spring on the sear is taken up by said axis and the sear at its end engaging the trigger arm will only be subjected to the pressure of the spring loaded projection.
  • FIG. 1 is a side view of the trigger mechanism according to a first embodiment with part in section, the spring loaded slidable projection being mounted into the end of the trigger lever and the mechanism is shown with the trigger in its neutral position.
  • FIG. 2 is a plan view of the mechanism shown in FIG. 1, the hammer being omitted.
  • FIGS. 3 and 4 are similar views as FIG. 1 with the mechanism in two other positions.
  • FIG. 5 is a side view with part in section of a triggermechanism according to a second embodiment having the slidable projection constituted by a portion of a spring mounted on the trigger arm and bent from wire.
  • FIG. 6 is a plan view of the trigger shown in FIG. 5.
  • the hammer 1 is rotatably supported on a pin 2 through the intermediary of a hollow journal 3 extending on both sides of the hammer, said pin being secured in the receiver of the barrel.
  • the trigger 4 is rotatably supported on a fixed axis 5 and is in its inoperative postion shown in FIG. 1 urged downwards with its arm 8 on an abutment face 7 at the bottom of the receiver under the in- 3,167,877 Patented Feb. 2, 1965 fiuence of a spring 6 bent to a U-shape.
  • both-legs of spring 6 some coils are formed, which are placed on journals 9 extending on both sides of the trigger 4.
  • the ends 10 of both legs of spring 6 bear on the bottom of the receiver.
  • the arm 8 of the trigger contains a slidable stud 13 loaded by a spring 14 which at its other end bears against a threaded pin 15 screwed in the trigger arm 8. Stud 13 urges on a fixed projection 16 provided on the seat 12.
  • a slidable stud or plunger 18 is mounted in the arm 17 of sear 12 remote from the hammer 1 and said stud is loaded by a spring 19 tending to urge the stud outwards.
  • the displacement of stud 18 is restricted by an abutment pin 20.
  • the hammer 1 is actuated by a U-shaped spring 21 tending to rotate the hammer in anti-clockwise direction and in each leg of said spring some coils 22 are formed, said coils being placed on journals 3 extending on both sides of the hammer.
  • the legs 23 of spring 21 are each bearing on the axis 5 of the trigger.
  • the trigger is pulled the arm 8 of the trigger strikes the abutment face 24 which e.g. may be provided on a fire regulater.
  • the trigger arm 8 thereby urges the rear arm 17 of sear 12 upwards so that said sear with its other arm disengages the cam 25 on the hammer 1, whereby the stud 13 bearing on the projection 16 of sear 12 will displace said sear forwards to the dotted line position indicated in FIG. 1.
  • the hammer 1 is now released and strikes the striking pin 26 as shown in dotted lines in FIG. 1, so that the shot is fired.
  • the guide body of which part is shown at 27 in FIG.
  • the spring loaded stud 18 on the sear 12 is replaced by a leg 30 of a spring 29 bent from wire and mounted on the trigger arm 8 in such a manner that the spring embraces a pin 31 extending through the trigger arm 8, the spring with its ends engages a pin 32 also projecting from arm 8.
  • the position of the mechanism shown in FIG. 5 is the neutral position corresponding to that shown in FIG. 1.
  • the operation of said embodiment fully corresponds to that of the mechanism described With reference to FIGS. 1-4, so that after firing the shot the rearmost end of sear 12 urges against leg 30 of spring 29 and the pressure of the spring 21 of hammer 1 is taken up by the trigger axis 5.
  • a trigger mechanism for a firearm such as a rifle, comprising a trigger having a rearwardly extending arm and mounted for rotation about a pivot axle, a projection on said arm spaced rearwardly of said axle, a stationary abutment for engagement with said arm to limit rotational movement of the trigger, a spring urging said trigger to an inoperative position with its arm engaging said abutment, a sear supported on said axle for rotation and sliding movement longitudinally of said arm, a hammer, a cam on said hammer, a spring urging said hammer toward firing condition, said sear having a first arm cooperating with said cam to lock said hammer in a non-firing condition, a second 'arm on said sear having a portion engageable with said projection on the trigger arm, and a spring urging said portion of the second arm of the sear into engagement with said projection'on'the arm of the trigger, said sear when in position for engagement with the projection on the trigger arm being prevented from further longitudinal rearward movement by the trigger axle.
  • a trigger mechanism for a firearm according'to claim 1 wherein said portion of the second sear arm engageable with the trigger arm projection constitutes the rear face of said second arm and the spring urging said portion is fastened to the trigger and includes a leg engageable with the rear face of the second arm of the sear.
  • a trigger mechanism according to claim 1, wherein said portion of the second sear arm engageable with the trigger arm projection constitutes a s-lideable plunger urged to project rearwardly from the rear face of the second arm of the sear 'by said spring.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Toys (AREA)
US236351A 1961-11-22 1962-11-08 Trigger mechanism for a firearm Expired - Lifetime US3167877A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL271660 1961-11-22

Publications (1)

Publication Number Publication Date
US3167877A true US3167877A (en) 1965-02-02

Family

ID=19753426

Family Applications (1)

Application Number Title Priority Date Filing Date
US236351A Expired - Lifetime US3167877A (en) 1961-11-22 1962-11-08 Trigger mechanism for a firearm

Country Status (6)

Country Link
US (1) US3167877A (es)
BE (1) BE623806A (es)
CH (1) CH395797A (es)
ES (1) ES282340A1 (es)
GB (1) GB957558A (es)
NL (2) NL106392C (es)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3431819A (en) * 1966-05-24 1969-03-11 Z Kana Svermy Firing mechanism for firearms
US4151670A (en) * 1976-05-12 1979-05-01 Rath Hans M Firing mechanism for semi-automatic firearms
US5640794A (en) * 1995-07-07 1997-06-24 Fn Manufacturing, Inc. Fire control mechanism for an automatic pistol
US5857280A (en) * 1997-04-11 1999-01-12 Jewell; Arnold W. Low pressure trigger pull with cocked position safety for a semiautomatic firearm
US5913261A (en) * 1996-06-28 1999-06-15 Heckler & Koch Gmbh Trigger arrangement
US6131324A (en) * 1998-11-30 2000-10-17 Jewell; Arnold W. Adjustable dual stage trigger assembly
US20090178322A1 (en) * 2008-01-14 2009-07-16 Dye Jr Mark Modular fire control assembly for a handgun
US20100236120A1 (en) * 2009-03-20 2010-09-23 Stone Jeffrey W Trigger engagement link for firearm
DE202011004556U1 (de) * 2011-03-30 2012-07-04 Sig Sauer Gmbh Abzugseinrichtung für eine Handfeuerwaffe
US20130340309A1 (en) * 2012-06-21 2013-12-26 Apex Tactical Specialties, Inc. Firing mechanism for a firearm
US10030927B1 (en) 2017-02-28 2018-07-24 Apex Tactical Specialties, Inc. Sear system for a firearm
US10267585B2 (en) * 2016-01-28 2019-04-23 Fostech, Inc. Trigger having a movable sear and firearms incorporating same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3015993A (en) * 1959-08-05 1962-01-09 P Az Luigi Franchi Soc Selective fire converter and rate reducer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3015993A (en) * 1959-08-05 1962-01-09 P Az Luigi Franchi Soc Selective fire converter and rate reducer

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3431819A (en) * 1966-05-24 1969-03-11 Z Kana Svermy Firing mechanism for firearms
US4151670A (en) * 1976-05-12 1979-05-01 Rath Hans M Firing mechanism for semi-automatic firearms
US5640794A (en) * 1995-07-07 1997-06-24 Fn Manufacturing, Inc. Fire control mechanism for an automatic pistol
US5806225A (en) * 1995-07-07 1998-09-15 Fn Manufacturing Inc Fire control mechanism for an automatic pistol
US5913261A (en) * 1996-06-28 1999-06-15 Heckler & Koch Gmbh Trigger arrangement
US5857280A (en) * 1997-04-11 1999-01-12 Jewell; Arnold W. Low pressure trigger pull with cocked position safety for a semiautomatic firearm
US6131324A (en) * 1998-11-30 2000-10-17 Jewell; Arnold W. Adjustable dual stage trigger assembly
US7930848B2 (en) * 2008-01-14 2011-04-26 Dye Jr Mark Modular fire control assembly for a handgun
US20090178322A1 (en) * 2008-01-14 2009-07-16 Dye Jr Mark Modular fire control assembly for a handgun
US20100236120A1 (en) * 2009-03-20 2010-09-23 Stone Jeffrey W Trigger engagement link for firearm
US8109025B2 (en) * 2009-03-20 2012-02-07 Ra Brands, L.L.C. Trigger engagement link for firearm
DE202011004556U1 (de) * 2011-03-30 2012-07-04 Sig Sauer Gmbh Abzugseinrichtung für eine Handfeuerwaffe
US20130340309A1 (en) * 2012-06-21 2013-12-26 Apex Tactical Specialties, Inc. Firing mechanism for a firearm
US8863425B2 (en) * 2012-06-21 2014-10-21 Apex Tactical Specialties, Inc. Firing mechanism for a firearm
US9625227B2 (en) 2012-06-21 2017-04-18 Apex Tactical Specialties, Inc. Firing mechanism for a firearm
US9739557B2 (en) 2012-06-21 2017-08-22 Apex Tactical Specialities, Inc. Firing mechanism for a firearm
US10267585B2 (en) * 2016-01-28 2019-04-23 Fostech, Inc. Trigger having a movable sear and firearms incorporating same
US10030927B1 (en) 2017-02-28 2018-07-24 Apex Tactical Specialties, Inc. Sear system for a firearm
US10422602B2 (en) 2017-02-28 2019-09-24 Apex Tactical Specialties, Inc. Sear system for a firearm

Also Published As

Publication number Publication date
CH395797A (de) 1965-07-15
NL271660A (es)
NL106392C (es)
BE623806A (es)
GB957558A (en) 1964-05-06
ES282340A1 (es) 1963-02-01

Similar Documents

Publication Publication Date Title
US3167877A (en) Trigger mechanism for a firearm
US3863375A (en) Trigger system
US4058924A (en) Pretriggerable trigger mechanism for sporting rifles
US2855716A (en) Fire control mechanism
US2296998A (en) Firearm
US3029708A (en) Trigger mechanism for automatic firearms
US5000075A (en) Double action pistol
US3797154A (en) Sear-disconnector for lever-action firearms
US3662483A (en) Firearm firing mechanism with a disconnector pivotably mounted on the gear
US2436267A (en) Double trigger safety for guns
US4016669A (en) Firearm having trigger blocking mechanism
GB240880A (en) Improvements in automatic fire arms
US2360180A (en) Trigger mechanism for automatic firearms
GB1059910A (en) Improvements in or relating to air rifles and the like
US2715356A (en) Closing block with percussion safety for automatic guns
US1029469A (en) Toy gun.
US1215181A (en) Trigger mechanism for firearms.
US3060810A (en) Sear mechanism disconnected by breech block motion
US2775165A (en) Firing mechanism
US3444640A (en) Firing mechanism for double-barrelled shotguns
GB900520A (en) Improvements in and relating to a breech for an artillery device of the muzzle-loading type
US2466196A (en) Gun action
GB1058071A (en) Improvements in guns having servo-controlled firing mechanisms
US2406981A (en) Combined release fire and straight fire gun
US2917038A (en) Toy guns