US20140311006A1 - Trigger mechanism - Google Patents

Trigger mechanism Download PDF

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Publication number
US20140311006A1
US20140311006A1 US14/123,775 US201214123775A US2014311006A1 US 20140311006 A1 US20140311006 A1 US 20140311006A1 US 201214123775 A US201214123775 A US 201214123775A US 2014311006 A1 US2014311006 A1 US 2014311006A1
Authority
US
United States
Prior art keywords
trigger
sear
screw
adjusting
tooth
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.)
Abandoned
Application number
US14/123,775
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English (en)
Inventor
Artem Alekseevich Kott
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.)
OBSCHESTVO S OGRANICHENNOY OTVETSTVENNOSTIU "PROMTECHNOLOGIA"
Original Assignee
OBSCHESTVO S OGRANICHENNOY OTVETSTVENNOSTIU "PROMTECHNOLOGIA"
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 OBSCHESTVO S OGRANICHENNOY OTVETSTVENNOSTIU "PROMTECHNOLOGIA" filed Critical OBSCHESTVO S OGRANICHENNOY OTVETSTVENNOSTIU "PROMTECHNOLOGIA"
Assigned to OBSCHESTVO S OGRANICHENNOY OTVETSTVENNOSTIU "PROMTECHNOLOGIA" reassignment OBSCHESTVO S OGRANICHENNOY OTVETSTVENNOSTIU "PROMTECHNOLOGIA" ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KOTT, ARTEM ALEKSEEVICH
Publication of US20140311006A1 publication Critical patent/US20140311006A1/en
Abandoned legal-status Critical Current

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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
    • F41A19/16—Adjustable firing mechanisms; Trigger mechanisms with adjustable trigger pull
    • 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
    • F41A19/12—Sears; Sear mountings
    • 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
    • F41A19/17—Hair-trigger mechanisms

Definitions

  • the invention relates to weapon technology area, particularly to trigger mechanisms of arms having lengthwise sliding bolts, for example, for hunting rifles.
  • the mechanism comprises a body, a sear with a latch and a sear lever, a triggering lever, and a trigger, and also adjustment screws.
  • the prior art mechanism is complicated in design and, besides, it does not separate the striker and the sear reliably, for which reason the safety of the rifle decreases.
  • the closest related prior art of this invention is the trigger mechanism disclosed in Russian Patent No. 2219459, F41A 19/24 published on Dec. 20, 2003 that comprises a body, a spring-loaded sear, a trigger with a spring, and adjustment screws; the sear and the trigger in that mechanism have threaded holes to receive the adjustment screws.
  • the design of the claimed trigger mechanism is aimed to improve reliability of the trigger mechanism, to expand opportunities for adjusting the release triggering mode and improve the triggering quality, while simplifying the trigger mechanism construction, ensure its manufacturability, simplicity of assembling and servicing the device.
  • the trigger mechanism comprising a body, a spring-loaded sear, a trigger with a spring, and adjustment screws, including a screw for adjusting the triggering and a screw for adjusting the triggering motion, said trigger mechanism further comprising a screw for adjusting the amount of engagement of the trigger with the sear, at that all the adjustment screws are mounted in the body and are oriented vertically, the sear is provided with a tooth which can come into engagement with a tooth present on the trigger, and the trigger tooth surface which interacts with the sear tooth surface is curvilinear.
  • Vertical orientation of the screws means that the screws extend at an angle of 90° to the horizontal axis.
  • the amount of engagement of the trigger with the sear assumes a value (area) of the contact between the surfaces of sear and trigger teeth.
  • the claimed trigger mechanism may have a technological hole to provide for visual observation of the amount of engagement between the trigger and the sear.
  • the screw for adjusting the amount of engagement of the trigger and the sear and the screw for adjusting the triggering motion are mounted in the body base.
  • the curvilinear surface of the trigger tooth which interacts with the sear tooth surface at the time as the trigger mechanism is in cocked position, has a convex arcuated shape with a curvature radius (R) of 5 to 8 mm.
  • the claimed trigger mechanism makes for reliable and safe operation of the mechanism by higher quality of release triggering because of broader abilities for adjusting the triggering point.
  • the claimed trigger mechanism is easy to manufacture and simple to assemble and provide maintenance services on.
  • FIG. 1 is a longitudinal sectional view of the trigger mechanism in the cocked position.
  • FIG. 2 shows the relative position of the sear and trigger teeth in engagement in phase of cocked trigger mechanism.
  • the trigger mechanism in accordance with the preferred embodiment of the invention comprises a body 1 having an aluminum cover (not shown), a technological hole 2 , a trigger 3 , a sear 4 , a triggering spring 5 , a sear spring 6 , a screw for adjusting triggering 7 , a screw for adjusting amount of engagement of the trigger with the sear 8 , and a screw for adjusting triggering motion 9 .
  • Adjustment screws 7 , 8 , and 9 are mounted in the body base and are oriented vertically at an angle of 90° to the horizontal axis thereof.
  • the sear 4 has a tooth is provided with a tooth which can come into contact with a tooth present on the trigger 3 .
  • the trigger tooth surface which interacts with the sear tooth surface at the time of cocked trigger, is curvilinear, in particular, as shown in FIG. 2 , it is a convex arcuated surface of a curvature radius (R) between 5 and 8 mm.
  • the amount of engagement is the area of interaction of the teeth surfaces of sear 6 and trigger 3 .
  • the technological hole 2 makes possibility to observe the amount of the engagement between trigger 3 and sear 6 visually.
  • the claimed trigger mechanism is operated as follows:
  • the shooter pulls trigger 3 that turns about its axis to be disengaged from sear 4 .
  • sear 4 is pushed by the striker down and compresses sear spring 6 .
  • the striker disengages from the tooth of sear 6 and moves forcefully forward.
  • the striker returns to its previous position.
  • sear 4 is forced by the spring 6 (loading art arm of sear 4 ) to return to its initial position of engagement with the striker.
  • Trigger 3 is forced b the triggering spring 5 to return to its initial position as well.
  • Adjustment of the trigger mechanism is carried out by adjustment screws 7 , 8 , and 9 .
  • the trigger tension is adjusted by turning screw 7 that either tightens or releases the triggering spring 5 .
  • the adjustment range is between 500 and 900 grams in “varmint” gun option and, where more tight spring is used, 1,000 to 1,500 grams in the hunting gun option.
  • a hole is provided in trigger 3 for adjusting the position of screw 7 by a hexagonal wrench.
  • Trigger 3 The amount of engagement of trigger 3 is adjusted by turning screw 8 and can be observed visually through the aperture 2 . Trigger 3 by force of the triggering spring 5 set against screw 8 and is in permanent contact therewith. Screw 8 can be used to adjust the point where trigger 3 begins to turn. Trigger 3 is in engagement with sear 4 . Change in the point where trigger 3 begins to turn causes a change in the amount of engagement between trigger 3 and sear 6 .
  • Adjustment limit the triggering motion is carried out by turning screw 9 .
  • By rotating the screw 9 either decrease OF an increase in the interval move of trigger occurs after disengagement with the sear 6 .
  • Such adjustment helps to control the moment of shot more precisely and improves convenience and accuracy of shooting.
  • All the described processes of adjustment of screws position may be accomplished by hexagonal wrenches without disassembling of the rifle. It can be achieved owing to the screws are accessible from the outer surface of the body.
  • the claimed trigger mechanism reduces to a minimum the possibility of an unintended shot being fired by an insignificant pressure applied to the trigger because the release effort can he adjusted and the trigger balanced. Besides, it virtually eliminates the possibility of jamming of the sear and trigger at the time when trigger mechanism is cocked because at the same time the shutter mainspring and the sear mainspring are both operate to disengage the sear and trigger. Furthermore, the shape of the friction surfaces of the sear and trigger prevents contact between the sharp edge of the trigger tooth and the flat surface of the sear tooth.
  • the curved arcuated surface under the trigger tooth that, in accordance with this invention, has a curvature radius of 5 to 8 mm reduces friction upon contact between the surfaces of the sear and trigger teeth.
  • the insignificant force (0.8 kgf) of the sear spring has not influence on firearm cocking.
  • the trigger mechanism of this invention is simple to assemble, has a high quality, and is reliable in use.
  • the claimed trigger mechanism can be manufactured by standard modern technologies with the use of common materials and it is suitable for use in non-automatic self-loading firearms.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Springs (AREA)
US14/123,775 2011-06-08 2012-03-15 Trigger mechanism Abandoned US20140311006A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
RU2011123084 2011-06-08
RU2011123084/11A RU2470249C1 (ru) 2011-06-08 2011-06-08 Спусковой механизм
PCT/RU2012/000175 WO2012169929A1 (fr) 2011-06-08 2012-03-15 Mécanisme de détente

Publications (1)

Publication Number Publication Date
US20140311006A1 true US20140311006A1 (en) 2014-10-23

Family

ID=47296278

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/123,775 Abandoned US20140311006A1 (en) 2011-06-08 2012-03-15 Trigger mechanism

Country Status (4)

Country Link
US (1) US20140311006A1 (fr)
EP (1) EP2719989A4 (fr)
RU (1) RU2470249C1 (fr)
WO (1) WO2012169929A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015101485U1 (de) * 2015-03-24 2016-06-28 L&O Hunting Group GmbH Abzugseinrichtung einer Handfeuerwaffe
US10222160B2 (en) 2017-02-03 2019-03-05 Varangian Investments, Llc Trigger assembly apparatus
DE102017120307A1 (de) * 2017-09-04 2019-03-07 Steel Action Gmbh Abzugsmechanismus für ein Repetiergewehr
US20190107353A1 (en) * 2017-10-10 2019-04-11 Sig Sauer, Inc. Handgun sear with multiple engagement surfaces
US20200041222A1 (en) * 2018-07-31 2020-02-06 Martin Dieter Lobert Toggle Trigger
US10704853B2 (en) * 2018-08-24 2020-07-07 WHG Properties, LLC Trigger assemblies for firearms
US10724815B2 (en) 2017-02-03 2020-07-28 Varangian Investments, Llc Trigger assembly
US11359878B2 (en) * 2019-06-04 2022-06-14 Benelli Armi S.P.A. Trigger unit for a firearm

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA028126B1 (ru) * 2014-02-26 2017-10-31 Довгань, Михаил Елизарович Ударно-спусковой механизм огнестрельного оружия
ES2805315T3 (es) * 2015-06-24 2021-02-11 2360216 Ontario Inc Dispositivo de gatillo
WO2020050749A1 (fr) * 2018-09-05 2020-03-12 Сергей Михайлович ПРЕСС Mécanisme de détente à percussion pour arme à feu
RU2714476C1 (ru) * 2019-09-02 2020-02-17 Общество с ограниченной ответственностью "Модуль" Ударно-спусковой механизм спортивного пистолета
IT202100026657A1 (it) * 2021-10-18 2023-04-18 Fabbrica Darmi Pietro Beretta S P A Arma con gruppo scatto comprendente un dispositivo di regolazione

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2126076A (en) * 1936-08-03 1938-08-09 Russell A Fortier Trigger mechanism
US2249231A (en) * 1937-04-19 1941-07-15 John B Smith Trigger mechanism
US2249232A (en) * 1939-02-08 1941-07-15 John B Smith Trigger mechanism
US2514981A (en) * 1948-02-12 1950-07-11 Remington Arms Co Inc Firing mechanism for firearms
US2765562A (en) * 1953-02-20 1956-10-09 Savage Arms Corp Trigger mechanism for bolt action firearms
US3075312A (en) * 1960-02-03 1963-01-29 Remington Arms Co Inc Set trigger mechanism
US5487233A (en) * 1995-02-13 1996-01-30 Arnold W. Jewell Trigger mechanism for firearms
US6073380A (en) * 1997-08-26 2000-06-13 Sig Arms International Ag Three position safety having trigger and bolt engaging positions for a firearm
US20050188580A1 (en) * 2004-03-01 2005-09-01 Jewell Arnold W. Trigger mechanism for firearms
US7188561B1 (en) * 2005-12-08 2007-03-13 Kelbly George E Adjustable firearm trigger mechanism and method of adjustment
US20100175291A1 (en) * 2009-01-13 2010-07-15 Farley Jr James Shelton Kinetic Firearm Trigger

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3755951A (en) * 1971-04-07 1973-09-04 Firearm Dev Inc Trigger mechanism for firearms
DD111528A3 (fr) * 1972-11-01 1975-02-20
DE3740219C2 (de) * 1987-11-27 1998-07-02 Walther Carl Gmbh Abzugseinrichtung für Schußwaffen
US6772548B1 (en) * 2002-04-22 2004-08-10 Ronald Power Trigger assembly for AK47 type rifle
RU2219459C1 (ru) * 2002-07-22 2003-12-20 Низов Николай Константинович Спусковой механизм
US7047685B2 (en) * 2004-01-14 2006-05-23 Ra Brands, L.L.C. Fire control adjustment system

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2126076A (en) * 1936-08-03 1938-08-09 Russell A Fortier Trigger mechanism
US2249231A (en) * 1937-04-19 1941-07-15 John B Smith Trigger mechanism
US2249232A (en) * 1939-02-08 1941-07-15 John B Smith Trigger mechanism
US2514981A (en) * 1948-02-12 1950-07-11 Remington Arms Co Inc Firing mechanism for firearms
US2765562A (en) * 1953-02-20 1956-10-09 Savage Arms Corp Trigger mechanism for bolt action firearms
US3075312A (en) * 1960-02-03 1963-01-29 Remington Arms Co Inc Set trigger mechanism
US5487233A (en) * 1995-02-13 1996-01-30 Arnold W. Jewell Trigger mechanism for firearms
US6073380A (en) * 1997-08-26 2000-06-13 Sig Arms International Ag Three position safety having trigger and bolt engaging positions for a firearm
US20050188580A1 (en) * 2004-03-01 2005-09-01 Jewell Arnold W. Trigger mechanism for firearms
US7188561B1 (en) * 2005-12-08 2007-03-13 Kelbly George E Adjustable firearm trigger mechanism and method of adjustment
US20100175291A1 (en) * 2009-01-13 2010-07-15 Farley Jr James Shelton Kinetic Firearm Trigger

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015101485U1 (de) * 2015-03-24 2016-06-28 L&O Hunting Group GmbH Abzugseinrichtung einer Handfeuerwaffe
US10222160B2 (en) 2017-02-03 2019-03-05 Varangian Investments, Llc Trigger assembly apparatus
US10724815B2 (en) 2017-02-03 2020-07-28 Varangian Investments, Llc Trigger assembly
US11340035B2 (en) 2017-02-03 2022-05-24 Varangian Investments, Llc Trigger assembly
DE102017120307A1 (de) * 2017-09-04 2019-03-07 Steel Action Gmbh Abzugsmechanismus für ein Repetiergewehr
US20190107353A1 (en) * 2017-10-10 2019-04-11 Sig Sauer, Inc. Handgun sear with multiple engagement surfaces
US10684087B2 (en) * 2017-10-10 2020-06-16 Sig Sauer, Inc. Handgun sear with multiple engagement surfaces
US20200041222A1 (en) * 2018-07-31 2020-02-06 Martin Dieter Lobert Toggle Trigger
US10704853B2 (en) * 2018-08-24 2020-07-07 WHG Properties, LLC Trigger assemblies for firearms
US11193726B2 (en) 2018-08-24 2021-12-07 WHG Properties, LLC Trigger assemblies for firearms
US11359878B2 (en) * 2019-06-04 2022-06-14 Benelli Armi S.P.A. Trigger unit for a firearm

Also Published As

Publication number Publication date
RU2470249C1 (ru) 2012-12-20
WO2012169929A1 (fr) 2012-12-13
EP2719989A1 (fr) 2014-04-16
EP2719989A4 (fr) 2014-11-05

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Legal Events

Date Code Title Description
AS Assignment

Owner name: OBSCHESTVO S OGRANICHENNOY OTVETSTVENNOSTIU "PROMT

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KOTT, ARTEM ALEKSEEVICH;REEL/FRAME:031756/0125

Effective date: 20131211

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION