US3358560A - Trigger mechanism for use with automatic firearms - Google Patents

Trigger mechanism for use with automatic firearms Download PDF

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Publication number
US3358560A
US3358560A US546221A US54622166A US3358560A US 3358560 A US3358560 A US 3358560A US 546221 A US546221 A US 546221A US 54622166 A US54622166 A US 54622166A US 3358560 A US3358560 A US 3358560A
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US
United States
Prior art keywords
sear
trigger
link
firearm
abutment
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
US546221A
Other languages
English (en)
Inventor
Ruffell Leslie Ernest
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.)
STERLING ENG CO Ltd
STERLING ENGINEERING COMPANY Ltd
Original Assignee
STERLING ENG CO Ltd
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 STERLING ENG CO Ltd filed Critical STERLING ENG CO Ltd
Application granted granted Critical
Publication of US3358560A publication Critical patent/US3358560A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F41A19/25—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins
    • F41A19/27—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block
    • F41A19/29—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension
    • F41A19/30—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension in bolt-action guns
    • F41A19/33—Arrangements for the selection of automatic or semi-automatic fire
    • 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
    • F41A19/25—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins
    • F41A19/27—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block
    • F41A19/29—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension
    • F41A19/30—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension in bolt-action guns
    • F41A19/31—Sear arrangements therefor

Definitions

  • TRIGGER MECHANISM FOR USE WITH AUTOMATIC FIREARMS Filed April 29, 1966 I 1 f O I 4 Mm N United States Patent 3,358,560 TRIGGER MECHANISM FOR USE WITH AUTGMATIC FIREARMS Leslie Ernest Rutiell, Dagenham, England, assignor to Sterling Engineering Company, Limited, Dagenham, England Filed Apr. 29, 1966, Ser. No. 546,221 Claims priority, application Great Britain, May 7, 1965, 19,333/65 4 Claims. (Cl.
  • firing may be controlled by a pivoted sear movable by the operation of a trigger.
  • the sear can also be capable of longitudinal movement, by means of a pin and slot coupling, which enables the sear to be decoupled from the trigger, in a position in which firing is prevented, the sear arresting the bolt after recoil.
  • the sear 5 is mounted for pivotal movement about a pivot rod 6 and a link 27 is rotatably coupled to the sear by being also pivotally mounted on the rod 6.
  • the link 27 can also pivot about a fulcrum provided by a further pivot rod 28 on the frame 1 at a position displaced from the pivot rod 6. It will be evident that pivotal movement of the link 27 about the pivot rod 28 through a small angle causes the upper end of the link coupled to the sear 5 to perform an arcuate movement about the axis of rod 28.
  • the sear itself is moved substantially longitudinally of the firearm when the trigger frame 1 is fitted thereto.
  • the spring 8 Whilst the trigger 2 is still held, the spring 8 is under maximum compression and causes the sear 5 to rotate to a position in which it is still disconnected from the trigger but in which the part 20 lies in the path of the bolt as it flies forward after recoil.
  • the bolt is therefore arrested in its cocked position.
  • the bolt then exerts forward pressure on the sear 5 and the sear will move forwardly, by pivotation of the link 27 about the pivot rod 28, until the step 4 engages the step 3 on the trigger.
  • the sear 5 As long as the trigger is held the sear 5 is prevented from moving to its most forward position, but when the trigger is released, movement of the sear to this most forward position will take place and the firearm will be in a condition to fire another round.
  • the single link 27 can be replaced by a more complex link system, provided that at least substantially longitudinal movement of the sear 5 is permitted.
  • the invention could be embodied in mechanisms in which the sear is not directly engaged by the trigger.
  • the invention can be embodied in a variety of trigger mechanisms and the trigger mechanism shown in the drawings may be modified in a variety of ways within the scope of the invention as defined in the following claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
US546221A 1965-05-07 1966-04-29 Trigger mechanism for use with automatic firearms Expired - Lifetime US3358560A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19383/65A GB1045126A (en) 1965-05-07 1965-05-07 Improvements in or relating to automatic firearms

Publications (1)

Publication Number Publication Date
US3358560A true US3358560A (en) 1967-12-19

Family

ID=10128442

Family Applications (1)

Application Number Title Priority Date Filing Date
US546221A Expired - Lifetime US3358560A (en) 1965-05-07 1966-04-29 Trigger mechanism for use with automatic firearms

Country Status (9)

Country Link
US (1) US3358560A (el)
AT (1) AT267367B (el)
BE (1) BE680698A (el)
CH (1) CH438096A (el)
ES (1) ES326412A1 (el)
FR (1) FR1479671A (el)
GB (1) GB1045126A (el)
NL (1) NL6606243A (el)
SE (1) SE301100B (el)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5705763A (en) * 1996-07-18 1998-01-06 Leon; Jorge A. Fire selector system for selecting between automatic and semi-automatic operation of a gun

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432486A (en) * 1942-08-17 1947-12-09 Patchett George William Fire controlling mechanism for automatic firearms
US3012479A (en) * 1957-04-30 1961-12-12 Sterling Eng Co Ltd Firing mechanism for automatic firearms

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432486A (en) * 1942-08-17 1947-12-09 Patchett George William Fire controlling mechanism for automatic firearms
US3012479A (en) * 1957-04-30 1961-12-12 Sterling Eng Co Ltd Firing mechanism for automatic firearms

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5705763A (en) * 1996-07-18 1998-01-06 Leon; Jorge A. Fire selector system for selecting between automatic and semi-automatic operation of a gun

Also Published As

Publication number Publication date
GB1045126A (en) 1966-10-05
FR1479671A (fr) 1967-05-05
NL6606243A (el) 1966-11-08
SE301100B (el) 1968-05-20
ES326412A1 (es) 1967-03-01
AT267367B (de) 1968-12-27
BE680698A (el) 1966-10-17
CH438096A (de) 1967-06-15

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