WO2005043068A1 - Interface de gachette/chien a rouleau destinee a des armes a feu - Google Patents

Interface de gachette/chien a rouleau destinee a des armes a feu Download PDF

Info

Publication number
WO2005043068A1
WO2005043068A1 PCT/US2004/037987 US2004037987W WO2005043068A1 WO 2005043068 A1 WO2005043068 A1 WO 2005043068A1 US 2004037987 W US2004037987 W US 2004037987W WO 2005043068 A1 WO2005043068 A1 WO 2005043068A1
Authority
WO
WIPO (PCT)
Prior art keywords
hammer
sear
trigger
roller
notch
Prior art date
Application number
PCT/US2004/037987
Other languages
English (en)
Inventor
Michael D. Keeney
Original Assignee
Ra Brands, L.L.C.
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
Priority claimed from US10/973,679 external-priority patent/US7181880B2/en
Application filed by Ra Brands, L.L.C. filed Critical Ra Brands, L.L.C.
Priority to ES04796919T priority Critical patent/ES2382191T3/es
Priority to BRPI0415909-8A priority patent/BRPI0415909A/pt
Priority to AU2004286353A priority patent/AU2004286353B2/en
Priority to CA2543727A priority patent/CA2543727C/fr
Priority to JP2006538557A priority patent/JP2007510129A/ja
Priority to EP04796919A priority patent/EP1678458B1/fr
Priority to AT04796919T priority patent/ATE545000T1/de
Publication of WO2005043068A1 publication Critical patent/WO2005043068A1/fr
Priority to IL175161A priority patent/IL175161A/en

Links

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
    • F41A19/43—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having at least one hammer in bolt-action guns
    • F41A19/44—Sear arrangements therefor
    • 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

Definitions

  • the present invention generally relates to hammer driven firearm trigger assemblies, and in particular to a hammer/sear interface for hammer driven firearm trigger assemblies.
  • the hammer of the firearm In hammer driven firearm trigger assemblies or fire control systems, such as for handguns, shotguns and various other types of long guns including lever action and semiautomatic rifles, the hammer of the firearm generally is held in a cocked position by a mechanical interface with a sear. The sear is connected either directly or through mechanical linkages to the trigger of the firearm. When the trigger is squeezed or moved rearward to fire a round of ammunition, the sear generally is moved out of locking engagement with the hammer so as to release the hammer. The hammer then is pivoted into contact with a firing pin of the firearm by a hammer spring. The engagement of the firing pin by the hammer causes the firing pin to strike a round of ammunition in the chamber of the firearm to initiate the firing of a round of ammunition.
  • Fig. 1 generally illustrates a conventional hammer sear interface in which the sear 2 includes a notched, hooked portion 6 that engages a corresponding notch or hook 8 formed in the rear hammer 4. Due to the sliding nature of this mechanical interface, the sear 2 and hammer 4 generally must be precisely machined so as to provide and ensure smooth and even surfaces on both the hammer and sear, so as to provide a smooth and crisp trigger feel during shooting to avoid catching or hesitation during firing, which can lead to misfires and affect the aim of the shooter.
  • the present invention is directed to a roller sear/hammer interface for a firearm.
  • the sear has a roller rotatably mounted between two side plates forming a portion of the sear body.
  • a linkage connecting the trigger and sear causes the sear to pivot rearward such that the roller rolls along a notched surface formed in the hammer.
  • This rolling action releases the hammer to strike a firing pin to fire a round of ammunition.
  • the hammer is returned to the fully cocked position, after which the sear roller rolls downward into an engaged and locked position within the notch formed in the hammer.
  • a sear mechanism for use in a hammer- driven firearm trigger assembly.
  • the sear mechanism includes a body portion including a pair of opposed side plates; and a roller mounted between the side plates at an upper end of the side plates. The surface of the roller rolls along a notched surface formed in the hammer when a trigger is moved to release the hammer and strike the firing pin. The surface of the roller rolls along the notched surface in the opposite direction when the trigger is released.
  • a sear-hammer interface is provided for a firearm trigger assembly.
  • the sear-hammer interface includes a hammer having a roller receiving notch formed along a rear surface; and a sear connected to the trigger assembly so as to pivot rearward in response to movement of a trigger.
  • the sear has a roller mounted between a pair of opposed side plates. The roller rolls along an engaging surface of the notch formed in the hammer when the trigger is moved to release the hammer.
  • FIG. 1 is a side elevation view of a conventional hammer/sear interface.
  • FIG. 2 is a perspective illustration of the roller sear/hammer interface of the present invention.
  • Fig. 3 is a side elevation view of the roller sear/hammer interface of the present invention with portions broken away for clarity.
  • Fig. 4 is a schematic illustration of a hammer driven fire control or trigger assembly utilizing the roller sear/hammer interface of the present invention.
  • Fig. 5 is a side elevation view illustrating an example of the fire control trigger assembly utilizing the roller sear/hammer interface of the present invention mounted in a firearm.
  • the present invention generally is directed to an improved hammer/sear interface 10 (Figs. 2 and 3) for hammer driven trigger assemblies or fire control systems T (Figs. 4 and 5) of firearms F (Fig. 5) such as various types of long guns, including shotguns and rifles, handguns, and other types of firearms utilizing hammer driven trigger assemblies or fire control systems for firing rounds of ammunition therefrom.
  • the present invention is further directed to providing a smoother and crisper trigger feel during operation of the hammer driven trigger assembly without requiring extensive surface finishing and precision milling or forming operations of the sear and hammer and the interface therebetween as is typically required with conventional hammer/sear interfaces for conventional hammer driven firearm trigger assemblies or fire control systems.
  • the improved hammer/sear interface 10 of the present invention generally includes a sear 11 connected via a mechanical linkage 12 (Figs. 4 and 5) to a trigger 13 of a firearm trigger assembly or fire control.
  • the roller sear 11 of the present invention generally includes a body portion 14, having a pair of opposed side plates 16, each typically formed from a metal such as steel or other durable, high strength materials and attached together via fasteners such as rivets, bolts or other similar fastening mechanisms.
  • the body 14 can be stamped, milled, metal injection molded, or otherwise formed as a single, unitary piece or component.
  • a roller or linear bearing 17 is rotatably mounted between the side plates at the upper ends 18 thereof so as to rotate upon movement of the sear 11 in response to movement of the trigger 13 of the firearm as indicated in Figs. 4 and 5. As further shown in Figs. 2 and 3, the roller or linear bearing 17 engages and rests in a notch 19 formed in a rear portion of a hammer 21 so as to engage and lock the hammer 21 in a cocked or ready position.
  • the hammer As the hammer is released, it will be urged forwardly by a hammer spring (not shown) and will strike the rearward end 23 of the firing pin 24 of the firearm, causing the firing pin to be moved forwardly and strike the primer of a round of ammunition (not shown) loaded within the chamber of the firearm to fire the round. Thereafter, as the hammer is moved back to its cocked, ready to fire position, upon release of the trigger, the roller 17 of the sear 11 again will be engaged by and roll downwardly into a fully engaged and locked position within the notch 19 of the hammer 21.
  • the roller sear/hammer interface of the present invention enables/allows greater tolerances in the machining of the hammer and sear, and the surface finishes thereof, than generally are required to form conventional sear and hammer components for a hammer driven trigger assembly or fire control system for firearms.
  • the roller action of the present invention further generally will ensure a smooth rolling engagement as opposed to the frictional sliding engagement of conventional hammer/sear interfaces.
  • the roller design of the present invention also generally will regain its engaged and locked position with the hammer with less hesitancy, due to the reduced frictional aspects of the roller sear/hammer interface of the present invention.

Landscapes

  • General Engineering & Computer Science (AREA)
  • Engineering & Computer Science (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Toys (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Feeding And Guiding Record Carriers (AREA)
  • Adjustment And Processing Of Grains (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

L'invention concerne une interface de gâchette/chien à rouleau destinée à une arme à feu. La gâchette (11) comprend un rouleau (17) monté rotatif entre deux plaques latérales (16) formant une partie du corps (14) de la gâchette. Au moment du déplacement de la détente (13), un lien (12) reliant la détente (13) et la gâchette (11) entraîne le pivotement de celle-ci (11) en arrière, de manière que le rouleau (17) vient en prise avec une surface à encoche (22) formée dans le chien (21). Cette action de roulement libère le chien (21) de manière à actionner un percuteur (24), aux fins de mise à feu d'une cartouche de munitions. Quand la détente (13) est libérée, le rouleau (17) de la gâchette roule vers le bas dans une position de prise et verrouillée à l'intérieur de l'encoche (22) formée dans le chien (21).
PCT/US2004/037987 2003-10-31 2004-10-29 Interface de gachette/chien a rouleau destinee a des armes a feu WO2005043068A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
ES04796919T ES2382191T3 (es) 2003-10-31 2004-10-29 Interfaz fiador de rodillo/martillo para armas de fuego
BRPI0415909-8A BRPI0415909A (pt) 2003-10-31 2004-10-29 arma de fogo, mecanismo de armadilha para uso em um conjunto de gatilho de arma de fogo acinado por percutor e interface de armadilha/ percutor para um conjunto de gatilho de arma de fogo
AU2004286353A AU2004286353B2 (en) 2003-10-31 2004-10-29 Roller sear/hammer interface for firearms
CA2543727A CA2543727C (fr) 2003-10-31 2004-10-29 Interface de gachette/chien a rouleau destinee a des armes a feu
JP2006538557A JP2007510129A (ja) 2003-10-31 2004-10-29 小火器のためのローラー逆鉤／撃鉄インターフェース
EP04796919A EP1678458B1 (fr) 2003-10-31 2004-10-29 Interface a rouleau entre gachette et chien pour armes a feu
AT04796919T ATE545000T1 (de) 2003-10-31 2004-10-29 Kopplung zwischen schlaghammer und abzugshebel mittels eines rollers
IL175161A IL175161A (en) 2003-10-31 2006-04-25 Roller sear/hammer interface for firearms

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US51644303P 2003-10-31 2003-10-31
US60/516,443 2003-10-31
US10/973,679 2004-10-26
US10/973,679 US7181880B2 (en) 2003-10-31 2004-10-26 Roller sear/hammer interface for firearms

Publications (1)

Publication Number Publication Date
WO2005043068A1 true WO2005043068A1 (fr) 2005-05-12

Family

ID=34556162

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/037987 WO2005043068A1 (fr) 2003-10-31 2004-10-29 Interface de gachette/chien a rouleau destinee a des armes a feu

Country Status (10)

Country Link
EP (1) EP1678458B1 (fr)
JP (1) JP2007510129A (fr)
AT (1) ATE545000T1 (fr)
AU (1) AU2004286353B2 (fr)
BR (1) BRPI0415909A (fr)
CA (1) CA2543727C (fr)
ES (1) ES2382191T3 (fr)
IL (1) IL175161A (fr)
RU (1) RU2372574C2 (fr)
WO (1) WO2005043068A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010108066A1 (fr) * 2009-03-20 2010-09-23 Ra Brands, L.L.C. Maillon d'engagement de détente pour arme à feu
WO2013138918A1 (fr) * 2012-03-23 2013-09-26 2360216 Ontario Inc. Ensemble détente
US9404701B2 (en) 2012-03-23 2016-08-02 Mats Lipowski Trigger assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230132953A1 (en) 2022-01-10 2023-05-04 Ethicon, Inc. Plug for lung tissue tract sealing

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE524187A (fr) *
US2189202A (en) * 1938-10-05 1940-02-06 Edward E Garland Automatic firearm
US4908970A (en) * 1988-06-21 1990-03-20 Bell Dennis L Gun trigger
DE4125148A1 (de) * 1991-07-30 1993-02-04 Gerold Domhan Abzugseinrichtung fuer schusswaffen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3726040A (en) * 1970-06-10 1973-04-10 Rolamite Inc Gun trigger mechanism

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE524187A (fr) *
US2189202A (en) * 1938-10-05 1940-02-06 Edward E Garland Automatic firearm
US4908970A (en) * 1988-06-21 1990-03-20 Bell Dennis L Gun trigger
DE4125148A1 (de) * 1991-07-30 1993-02-04 Gerold Domhan Abzugseinrichtung fuer schusswaffen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010108066A1 (fr) * 2009-03-20 2010-09-23 Ra Brands, L.L.C. Maillon d'engagement de détente pour arme à feu
WO2013138918A1 (fr) * 2012-03-23 2013-09-26 2360216 Ontario Inc. Ensemble détente
US9097485B2 (en) 2012-03-23 2015-08-04 2360216 Ontario Inc. Trigger assembly
US9404701B2 (en) 2012-03-23 2016-08-02 Mats Lipowski Trigger assembly

Also Published As

Publication number Publication date
EP1678458A1 (fr) 2006-07-12
AU2004286353B2 (en) 2011-11-24
JP2007510129A (ja) 2007-04-19
IL175161A (en) 2011-03-31
EP1678458B1 (fr) 2012-02-08
BRPI0415909A (pt) 2007-01-16
IL175161A0 (en) 2006-09-05
CA2543727A1 (fr) 2005-05-12
ATE545000T1 (de) 2012-02-15
ES2382191T3 (es) 2012-06-06
RU2372574C2 (ru) 2009-11-10
CA2543727C (fr) 2010-08-17
AU2004286353A1 (en) 2005-05-12
RU2006118809A (ru) 2007-12-10

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