[특허]Trigger mechanism and a firearm containing the same

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Trigger mechanism and a firearm containing the same

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F41A-003/00
미국특허분류(USC)	042/069.02; 042/016; 042/025
출원번호	UP-0244585 (2005-10-06)
등록번호	US-7743543 (2010-07-19)
발명자 / 주소	Karagias, Theodore
대리인 / 주소	Seed Intellectual Property Law Group PLLC
인용정보	피인용 횟수 : 13 인용 특허 : 329

초록

A firearm having a small trigger pull force, small trigger pull distance, and a large sear engagement is provided. The firearm of the present invention provides a safe firearm having a light and crisp trigger pull. Certain embodiments of the present invention may provide a firearm having a ratio of sear engagement to trigger pull distance that is greater than or equal to 1.0.

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What is claimed is: 1. A firearm comprising: a sear assembly comprising a sear and a sear roller; a trigger assembly comprising a trigger; a firing pin assembly comprising a cocking piece, wherein said sear assembly, said trigger assembly, and said firing pin assembly are operably connected to each other so that said sear roller obstructs the movement of said cocking piece until said trigger is pulled to a firing position; and a bolt assembly comprising an extractor collar and a bolt having a firing pin cam integrally incorporated into said bolt; wherein said firing pin assembly comprises a firing pin; said firing pin cam is surrounded by said extractor collar to be hidden from visual observation; and said bolt assembly is capable of resetting said firearm after said firearm has been discharged. 2. The firearm as claimed in claim 1, further comprising a receiver; said sear being connected to said receiver by a sear pin, said sear catch being connected to said receiver by a sear catch pin, and said trigger being connected to said sear catch by a trigger pin. 3. The firearm as claimed in claim 2, further comprising: a safety assembly which comprises a safety, a ball, and a detent spring; said ball and said detent spring being contained within said safety; wherein said safety assembly is operably connected to said sear assembly so that said safety assembly can be adjusted to prevent accidental discharge of said firearm. 4. The firearm as claimed in claim 3, wherein said receiver comprises detents capable of providing tactile feedback to a user through said safety assembly. 5. The firearm as claimed in claim 1, further comprising a receiver, wherein said sear is rotatably coupled to said receiver, a sear catch of the sear assembly is rotatably coupled to said receiver, and said trigger assembly moves with respect to said sear catch as said sear catch moves with respect to said sear. 6. The firearm as claimed in claim 1, wherein said trigger is movable between a set position and the firing position, the trigger is rotatably coupled to a sear catch of the sear assembly and restrained by a receiver of said firearm such that said sear catch slides along and disengages a surface of said sear when said trigger is moved between said set position and said firing position. 7. The firearm as claimed in claim 6, wherein said trigger assembly includes a trigger roller configured to travel along said receiver as said trigger moves between said set position and said firing position. 8. The firearm of claim 1, wherein a surface of the sear generally overlaps the sear engaging surface. 9. A firearm comprising: a sear assembly comprising a sear and a sear catch; a trigger assembly comprising a trigger, said sear assembly and said trigger assembly are operably connected to each other to provide a ratio of a sear engagement to a trigger pull distance that is greater than or equal to 0.5 and less than or equal to 10, said sear engagement being a length of a contact path along a sear engaging surface of said sear catch contacted by said sear so as to disengage said sear from said sear catch, said trigger pull distance being a distance traveled by said trigger from a set position to a position which causes said sear and said sear catch to be disengaged from each other; a receiver; wherein said trigger assembly further comprises a trigger roller; and said sear is connected to said receiver by a sear pin, said sear catch is connected to said receiver by a sear catch pin, said trigger is connected to said sear catch by a trigger pin, and said trigger roller is in contact with said receiver. 10. The firearm as claimed in claim 9, wherein the ratio of said sear engagement to said trigger pull distance is greater than or equal to 1.0 and less than or equal to 7.5. 11. The firearm as claimed in claim 9, wherein the ratio of said sear engagement to said trigger pull distance is greater than or equal to 2.0 and less than or equal to 5.0. 12. The firearm as claimed in claim 9, wherein the ratio of said sear engagement to said trigger pull distance is greater than or equal to 3.0 and less than or equal to 4.0. 13. The firearm as claimed in claim 9, said firearm further comprising: a firing pin assembly which comprises a cocking piece; wherein an element obstructs the movement of said cocking piece until said trigger is pulled to a position which causes said sear and said sear catch to be disengaged from each other. 14. The firearm as claimed in claim 13, wherein said element is a sear roller. 15. The firearm as claimed in claim 13, wherein said element is a fixed element having a surface in contact with said cocking piece, said surface having a coefficient of friction less than or equal to 0.3. 16. The firearm as claimed in claim 13, wherein said element is a fixed element having a surface in contact with said cocking piece, said surface has a coefficient of friction less than or equal to 0.1. 17. A firearm comprising: a receiver; a sear assembly comprising a sear and a sear catch; a trigger assembly comprising a trigger and a trigger roller; and wherein said sear is connected to said receiver by a sear pin, said sear catch is connected to said receiver by a sear catch pin, said trigger is connected to said sear catch by a trigger pin, and said trigger roller is in contact with said receiver. 18. The firearm of claim 17, wherein said sear assembly and said trigger assembly are operably connected to each other to provide a ratio of a sear engagement to a trigger pull distance that is greater than or equal to 0.5 and less than or equal to 10.0; said sear engagement is a distance traveled by a sear engaging surface of said sear catch with respect to an opposing surface of said sear to disengage said sear from said sear catch; and said trigger pull distance being a distance traveled by a central region of said finger engagement portion of said trigger from a set position to a position which causes said sear and said sear catch to be disengaged from each other. 19. The firearm as claimed in claim 18, wherein the ratio of said sear engagement to said trigger pull distance is greater than or equal to 1.0 and less than or equal to 7.5. 20. The firearm as claimed in claim 18, wherein the ratio of said sear engagement to said trigger pull distance is greater than or equal to 2.0 and less than or equal to 5.0. 21. The firearm as claimed in claim 18, wherein the ratio of said sear engagement to said trigger pull distance is greater than or equal to 3.0 and less than or equal to 4.0. 22. The firearm as claimed in claim 18, further comprising: a firing pin assembly comprising a cocking piece; wherein an element obstructs the movement of said cocking piece until said trigger is pulled to a position which causes said sear and said sear catch to be disengaged from each other. 23. The firearm as claimed in claim 22, wherein said element is a sear roller. 24. The firearm as claimed in claim 22, wherein said element is a fixed element having a surface in contact with said cocking piece, said surface having a coefficient of friction that is less than or equal to 0.3. 25. The firearm as claimed in claim 22, wherein said element is a fixed element having a surface in contact with said cocking piece, said surface having a coefficient of friction that is less than or equal to 0.1. 26. The firearm of claim 17, further comprising: a firing pin assembly including a cocking piece; wherein said sear assembly further comprises a sear roller, and said sear assembly, said trigger assembly, and said firing pin assembly are operably connected to each other so that said sear roller obstructs the movement of said cocking piece until said trigger is moved to a firing position. 27. A firearm comprising: a receiver; a sear assembly comprising a sear and a sear catch; a trigger assembly comprising a trigger and receiver-engaging means for movably engaging said receiver, said receiver-engaging means including a trigger roller; and said sear is connected to said receiver by a sear pin, said sear catch is connected to said receiver by a sear catch pin, and said trigger is connected to said sear catch by a trigger pin.

이 특허에 인용된 특허 (329)

이 특허를 인용한 특허 피인용횟수: 13

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특허 상세정보

Trigger mechanism and a firearm containing the same

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Trigger mechanism and a firearm containing the same

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이 특허에 인용된 특허 (329)

이 특허를 인용한 특허 피인용횟수: 13

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