US20190154369A1 - Frame for polymeric pistol with metal rail - Google Patents

Frame for polymeric pistol with metal rail Download PDF

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Publication number
US20190154369A1
US20190154369A1 US15/942,551 US201815942551A US2019154369A1 US 20190154369 A1 US20190154369 A1 US 20190154369A1 US 201815942551 A US201815942551 A US 201815942551A US 2019154369 A1 US2019154369 A1 US 2019154369A1
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US
United States
Prior art keywords
frame
upper frame
support
pistol
rail
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
US15/942,551
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English (en)
Inventor
Byung Hak Kim
Kwang Young HAN
Jong Bum Kim
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.)
Dasan Machineries Co Ltd
Original Assignee
Dasan Machineries 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 Dasan Machineries Co Ltd filed Critical Dasan Machineries Co Ltd
Assigned to DASAN MACHINERIES CO., LTD reassignment DASAN MACHINERIES CO., LTD ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HAN, KWANG YOUNG, KIM, BYUNG HAK, KIM, JONG BUM
Publication of US20190154369A1 publication Critical patent/US20190154369A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
    • F41C3/00—Pistols, e.g. revolvers
    • 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
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/64—Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
    • F41A3/66—Breech housings or frames; Receivers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
    • F41C23/00—Butts; Butt plates; Stocks
    • F41C23/10—Stocks or grips for pistols, e.g. revolvers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
    • F41C23/00—Butts; Butt plates; Stocks
    • F41C23/18—Butts; Butt plates; Stocks characterised by the material used
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
    • F41C27/00—Accessories; Details or attachments not otherwise provided for

Definitions

  • the present invention relates to a frame for a polymeric pistol with a metal rail, and more particularly, to a frame for a polymeric pistol with a metal rail, which includes a rail made of metal to couple the frame made of a reinforced plastic material to a slide.
  • the components thereof such as a slide, a lower gun body, and a magazine etc., which are not directly associated with the discharge of bullets, are made of light reinforced synthetic plastic materials having a stiffness similar to a metal, so that it reduces the weight of the pistol and is easy to carry.
  • the thermal deformation of the lower gun body made of plastic materials causes malfunctions and functionality failures between various components assembled to the lower gun body. As a result, it can deteriorate the shooting accuracy of the gun and the operation reliability thereof. Also, since it can cause the shooting accident etc. owing to the unnecessary gaps between the components, the safety of using the gun can be also deteriorated.
  • the metal insert disclosed in the above patent literatures is manufactured by pressing and bending a thin sheet, it is not easy to manufacture the component having a fine machining tolerance owing to the manufacturing characteristic thereof. Therefore, since the gap between the lower gun body (gun body frame) and the metal insert is generated, the vibration and the noise are generated during firing of the bullet, thereby deteriorating the shooting accuracy thereof due to the vibration.
  • the entire lower gun body is made of the metallic materials.
  • the entire lower gun body is made of the metallic materials.
  • the frame for a polymeric pistol capable of securing the structural soundness of firearms to secure an accuracy rate of bullet even in high-temperature environments, maintaining performance thereof for a long time without the deformation of the components, 0 preventing the high-temperature heat generated in a barrel or the like from being transferred, as it is, to a handle of the frame, and disassembling and replacing components as occasion demands.
  • Patent Literature 1 U.S. Pat. No. 5,655,326 B1 (Aug. 12, 1997)
  • Patent Literature 2 U.S. Pat. No. 6,993,864 B1 (Feb. 7, 2006)
  • Patent Literature 3 U.S. Pat. No. 8,156,677 B1 (Apr. 17, 2012)
  • Patent Literature 4 US 2014-0007479 A1 (Jan. 9, 2014)
  • Patent Literature 5 US 2009-0071053 A1 (Mar. 19, 2009)
  • the present invention has been made in view of the problem of the above-mentioned conventional plastic pistol, and an object thereof is to provide a frame for a polymeric pistol with a metal rail, capable of securing the structural soundness of firearms to secure an accuracy rate of bullet even in high-temperature environments, preventing the high-temperature heat generated in a barrel or the like from being transferred, as it is, to a handle of the frame, and disassembling and replacing components as occasion demands.
  • a frame for a polymeric pistol with a metal rail a pistol having a slide
  • the frame including: a lower frame made of a reinforced plastic material and having a handle formed at its lower portion; and an upper frame assembled onto the lower frame while being assembled to the slide and made of a metal material
  • the lower frame includes a first support positioned in front of the handle to support a bottom surface of the upper frame, and a second support positioned behind the handle to support a rear surface of the upper frame
  • the upper frame is assembled to the lower frame such that the bottom and rear surfaces of the upper frame are supported by the first and second supports
  • the upper frame has a front rail and a rear rail that are integrally formed on its upper surface, the front and rear rails being assembled to the slide.
  • the upper frame has a recoil spring installation part formed in front of the front rail and a trigger mechanism housing installation part formed inside the rear rail.
  • the first support of the lower frame has an insertion hole that is formed at one side thereof to have a predetermined depth and has a fastening hole formed through the side surface thereof and the second support includes a seating portion that has a horizontal plane to support the bottom surface of the upper frame; and the upper frame has a front fixed part formed at the bottom surface thereof such that the front fixed part is inserted into the insertion hole and a rear fixed part protruded from the bottom surface thereof and seated to the seating portion while being inserted into the second support.
  • a pair of side fixing grooves is formed to face each other along both sides of the lower frame between the first support and the second support of the lower frame, and each of the side fixing grooves has a length in forward and backward directions; and a pair of insertion protrusions protrudes downward from the bottom surface of the upper frame so that the insertion protrusions are inserted into the side fixing grooves.
  • fitting protrusions protrude from one ends of the pair of side fixing grooves, respectively; and fitting grooves formed at the bottom surface of the upper frame such that the fitting protrusions are inserted into the fitting grooves.
  • a side guide is further formed at a selected one of the pair of side fixing grooves, protrudes upward to be pressed against the outer surface of the upper frame, and serves to guide the position of the upper frame.
  • FIG. 1 is a perspective view illustrating an example of a frame for a polymeric pistol with a metal rail according to an embodiment of the present invention
  • FIG. 2 is an exploded perspective view illustrating an example in which the lower and upper frames of FIG. 1 are separated from each other;
  • FIG. 3 is a side view of FIG. 1 ;
  • FIG. 4 is a perspective view illustrating an example of the lower frame according to an embodiment of the present invention.
  • FIG. 5 is a side view of FIG. 4 ;
  • FIG. 6 is a plan view of FIG. 4 ;
  • FIG. 7 is a perspective view illustrating an example of the upper frame according to an embodiment of the present invention.
  • FIG. 8 is a side view of FIG. 7 ;
  • FIG. 9 is a bottom view of FIG. 7 ;
  • FIG. 10 is a top view of FIG. 7 ;
  • FIG. 11 is a cross-sectional view illustrating an example in which the lower frame is assembled to the upper frame in the frame for a polymeric pistol with a metal rail according to an embodiment of the present invention.
  • FIG. 12 is a view illustrating a state of use in an example in which a slide is assembled to the frame for a polymeric pistol with a metal rail according to an embodiment of the present invention.
  • the present invention is to provide a frame for a polymeric pistol with a metal rail, capable of securing the structural soundness of firearms to secure an accuracy rate of bullet even in high-temperature environments, preventing the high-temperature heat generated in a barrel or the like from being transferred, as it is, to a handle of the frame, and disassembling and replacing components as occasion demands.
  • a frame ( 2 ) according to an embodiment of the present invention includes a lower frame ( 10 ) and an upper frame ( 20 ).
  • the lower frame ( 10 ) is made of a reinforced plastic material by injection molding. As illustrated in FIGS. 3 and 4 , the lower frame ( 10 ) has a handle ( 11 ) that allows a user to grip a pistol, and a magazine insertion hole (with no reference numeral) into which a magazine is inserted through the inside of the handle ( 11 ).
  • the handle ( 11 ) has a magazine catch installation hole ( 11 A) formed on the side surface thereof, and a magazine catch (not shown) is installed in the magazine catch installation hole ( 11 A) so that the magazine inserted into the magazine insertion hole is restricted or the restriction thereof is released.
  • the lower frame ( 10 ) includes a first support ( 12 ) that is formed above and in front of the handle ( 11 ) to support the bottom surface of the upper frame ( 20 ) which will be described later.
  • the first support ( 12 ) has an insertion hole ( 12 A) that is formed at one side thereof to have a predetermined depth, and the insertion hole ( 12 A) has a fastening hole ( 12 A′) formed through the side surface thereof.
  • the first support ( 12 ) has a trigger installation hole ( 12 B), which is formed at the other side thereof to vertically pass therethrough, so that a trigger (not shown) is inserted and installed in the trigger installation hole ( 12 B).
  • the lower frame ( 10 ) includes a second support ( 13 ) that is formed above and behind the handle ( 11 ) to support the rear surface of the upper frame ( 20 ).
  • the second support ( 13 ) includes a seating portion ( 13 A) that has a horizontal plane to support the bottom surface of the upper frame ( 20 ).
  • the second support ( 13 ) has a pin coupling hole ( 13 B) formed through the side surface thereof, and a fixing pin (P) is inserted into the pin coupling hole ( 13 B) to fix a rear fixed part ( 24 ) of the upper frame ( 20 ) which will be described later.
  • a pair of side fixing grooves ( 14 ) is formed to face each other along both sides of the lower frame ( 10 ) between the first support ( 12 ) and the second support ( 13 ), and each of the side fixing grooves ( 14 ) has a length in forward and backward directions. As illustrated in FIGS. 4 and 6 , fitting protrusions ( 14 A) protrude from one ends of the pair of side fixing grooves ( 14 ), respectively, and they face each other.
  • a side guide ( 14 B) is formed at a selected one of the pair of side fixing grooves ( 14 ), and the side guide ( 14 B) protrudes upward to be pressed against the outer surface of the upper frame ( 20 ) and serves to guide the position of the upper frame ( 20 ) while supporting the upper frame ( 20 ), as illustrated in FIG. 5 .
  • the upper frame ( 20 ) is seated on the lower frame ( 10 ) having the above structure using the first support ( 12 ) and the second support ( 13 ), an assembly screw (B) is assembled to a nut (N) by passing through the fastening hole ( 12 A′) of the first support ( 12 ), and the fixing pin (P) is inserted through the pin coupling hole ( 13 B) of the second support ( 13 ).
  • the lower frame ( 10 ) is strongly coupled to the upper frame ( 20 ).
  • the lower frame ( 10 ) is made of a reinforced plastic material, it is possible to prevent the high-temperature heat generated in the process of discharging bullets from being transferred, as it is, to the lower frame ( 10 ) through the upper frame ( 20 ).
  • the upper frame ( 20 ) made of a metal material is assembled onto the lower frame ( 10 ), thereby preventing the easy deformation of the lower frame ( 10 ) due to high-temperature heat by the upper frame ( 20 ) while the assembly between a plurality of components in the lower frame is maintained as it is. As a result, it is possible to improve the accuracy rate and reliability of operation of the pistol.
  • the upper frame ( 20 ) is manufactured by cutting a metal material in the form of a rectangular block having a length of the lower frame ( 10 ) in the forward and backward directions thereof.
  • the upper frame ( 20 ) has a front rail ( 21 ) and a rear rail ( 22 ) that are integrally formed at the upper portion thereof, and the front and rear rails ( 21 ) and ( 22 ) are assembled to a slide ( 1 ) and spaced at a predetermined distance from each other.
  • the upper frame ( 20 ) has a front fixed part ( 23 ) protruding downward from the bottom surface thereof by a predetermined length such that the front fixed part ( 23 ) is inserted into the insertion hole ( 12 A) of the first support ( 12 ).
  • the front fixed part ( 23 ) has a through-hole ( 23 A) formed through the side surface thereof, and the through-hole ( 23 A) communicates with the fastening hole ( 12 A′) of the insertion hole ( 12 A).
  • the upper frame ( 20 ) has a rear fixed part ( 24 ) protruding downward from the bottom rear thereof such that the rear fixed part ( 24 ) is supported by the second support ( 13 ) of the lower frame ( 10 ) while being inserted into the lower frame ( 10 ) by a predetermined depth.
  • the rear fixed part ( 24 ) includes, when it is assembled to the lower frame ( 10 ), a first contact portion ( 24 A), which is inclined to form a continuous plane with the inner surface of the magazine insertion hole in the handle ( 11 ), and a second contact portion ( 24 B), the other surface of which has a vertical length so that the second contact portion ( 24 B) is supported by coming into contact with the inner surface of the second support ( 13 ).
  • the rear fixed part ( 24 ) has a pin coupling hole ( 24 C) formed through the side surface thereof, and a third contact portion ( 24 D) is formed at the bottom surface of the upper frame ( 20 ), which is adjacent to the rear fixed part 24 , so that the third contact portion ( 24 D) is seated to the seating portion ( 13 A) of the second support ( 13 ).
  • the upper frame ( 20 ) has a pair of insertion protrusions ( 25 ) protruding downward from the bottom surface thereof so that the insertion protrusions ( 25 ) are inserted into the side fixing grooves ( 14 ) of the lower frame ( 10 ), as illustrated in FIGS. 7 and 9 .
  • the pair of insertion protrusions ( 25 ) are formed with fitting grooves ( 25 A) into which the fitting protrusions ( 14 A) of the lower frame ( 10 ) are inserted.
  • the upper frame ( 20 ) has a recoil spring installation part ( 26 ) formed at the upper portion thereof, and the recoil spring installation part ( 26 ) has a concave groove having a predetermined depth for installation of a recoil spring assembly in front of the front rail ( 21 ).
  • the upper frame ( 20 ) has a trigger mechanism housing installation part ( 27 ) formed by vertically penetrating the rear rail ( 22 ) and the rear fixed part ( 24 ).
  • a slide lock installation hole ( 28 ) is formed through both sides of the upper frame between the front rail ( 21 ) and the rear rail ( 22 ), and a slide lock (not shown) is installed in the slide lock installation hole ( 28 ) so as to be elastically supported by springs.
  • the upper frame ( 20 ) having the above structure is manufactured such that the components such as the front rail ( 21 ), the rear rail ( 22 ), the front fixed part ( 23 ), the rear fixed part ( 24 ), the recoil spring installation part ( 26 ), and the trigger mechanism housing installation part ( 27 ) are integrally formed by precisely cutting one metal material. Therefore, it is possible to relatively significantly reduce the gap between assembly components, compared to separately forming these components.
  • the upper frame ( 20 ) made of a metal material is not easily deformed even due to high-temperature heat, thereby preventing the gap assembly components from occurring due to heat even in high-temperature environments or at the time of continuous discharge of bullets. As a result, it is possible to significantly reduce the malfunction or functional failure rate of the pistol.
  • the fitting protrusions ( 14 A) of the side fixing grooves ( 14 ) are fitted into the fitting grooves ( 25 A) of the upper frame ( 20 ) while the pair of the insertion protrusions ( 25 ) formed on the bottom surface of the upper frame ( 20 ) are inserted into the side fixing grooves ( 14 ).
  • the lower frame ( 10 ) is assembled to the upper frame ( 20 ) while the side surface of the upper frame ( 20 ) is tightly supported by the side guide ( 14 B), thereby allowing the position therebetween to be accurately fixed.
  • a frame is configured by assembling a lower frame made of a reinforced plastic material to an upper frame made of a metal material, thereby preventing the deformation of front and rear rails due to the high-temperature heat generated in the trigger mechanism, barrier, and the like of a pistol even in high-temperature environments.
  • the present invention is advantageous in that, when it is necessary to replace one of the components of the lower and upper frames, it is possible to separately replace only the corresponding component.
  • front and rear rails are integrally formed in the upper frame by precisely cutting one metal material in the present invention, it is possible to relatively significantly reduce the gap between the rail and a slide when they are assembled to each other, compared to an existing rail formed by pressing or bending. As a result, it is possible to improve the accuracy rate of the pistol by reducing unnecessary rocking when the slide slides.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
US15/942,551 2017-11-20 2018-04-01 Frame for polymeric pistol with metal rail Abandoned US20190154369A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020170154824A KR101845051B1 (ko) 2017-11-20 2017-11-20 금속 레일이 구비된 강화 플라스틱 권총용 아래 총몸
KR10-2017-0154824 2017-11-20

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190107349A1 (en) * 2017-08-16 2019-04-11 Zrodelta, Llc Pistol
USD869593S1 (en) * 2018-01-18 2019-12-10 Paul T. Noonan Backstrap
US11143473B1 (en) * 2020-09-22 2021-10-12 Dasan Machineries Co., Ltd. Frame assembly for pistol
US11187492B2 (en) * 2020-04-18 2021-11-30 Henry Hanson Mumford Modular compact firearm system
US11543197B2 (en) * 2018-01-18 2023-01-03 Paul T. Noonan Handgun having metallic rails within a polymeric frame
US20230138874A1 (en) * 2020-04-08 2023-05-04 Glock Technology Gmbh Recoil spring abutment for a slide of a modular handgun
USD1049292S1 (en) * 2021-04-06 2024-10-29 Springfield, Inc. Pistol

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018120040A1 (de) * 2018-08-17 2020-02-20 SIG SAUER GmbH & Co. KG Pistolengriffstück
US11624571B1 (en) 2022-03-17 2023-04-11 Dasan Machineries Co., Ltd Frame assembly for pistol with lock lever

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5669169A (en) * 1996-04-16 1997-09-23 Fn Manufacturing, Inc. Handgun having metallic rails within a polymeric frame
US6234059B1 (en) * 1999-02-23 2001-05-22 Sig Arms International Ag Pistol including a removable structural unit
US6401379B1 (en) * 2000-11-28 2002-06-11 Kook-Jin Moon Handgun having a polymer frame
US20080060247A1 (en) * 2006-06-23 2008-03-13 Adrian Thomele Grip for a handgun
US7472507B2 (en) * 2004-12-22 2009-01-06 Smith & Wesson Corp. Firearm with modular sear and trigger mechanism housings
US8528243B1 (en) * 2012-07-10 2013-09-10 Gaston Glock Pistols and methods of manufacture
US8695262B2 (en) * 2011-01-03 2014-04-15 Smith & Wesson Corp. Unitary sear housing block
US8935871B2 (en) * 2011-08-09 2015-01-20 Ufb Technologies Ltd. Hand gun
US20170321980A1 (en) * 2016-01-18 2017-11-09 ZEV Technologies, Inc. Modular handgun
US20170350665A1 (en) * 2016-06-07 2017-12-07 Polymer 80 Unfinishied firearm frame and jig

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5669169A (en) * 1996-04-16 1997-09-23 Fn Manufacturing, Inc. Handgun having metallic rails within a polymeric frame
US6234059B1 (en) * 1999-02-23 2001-05-22 Sig Arms International Ag Pistol including a removable structural unit
US6401379B1 (en) * 2000-11-28 2002-06-11 Kook-Jin Moon Handgun having a polymer frame
US7472507B2 (en) * 2004-12-22 2009-01-06 Smith & Wesson Corp. Firearm with modular sear and trigger mechanism housings
US20080060247A1 (en) * 2006-06-23 2008-03-13 Adrian Thomele Grip for a handgun
US8695262B2 (en) * 2011-01-03 2014-04-15 Smith & Wesson Corp. Unitary sear housing block
US8935871B2 (en) * 2011-08-09 2015-01-20 Ufb Technologies Ltd. Hand gun
US8528243B1 (en) * 2012-07-10 2013-09-10 Gaston Glock Pistols and methods of manufacture
US20170321980A1 (en) * 2016-01-18 2017-11-09 ZEV Technologies, Inc. Modular handgun
US20170350665A1 (en) * 2016-06-07 2017-12-07 Polymer 80 Unfinishied firearm frame and jig

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190107349A1 (en) * 2017-08-16 2019-04-11 Zrodelta, Llc Pistol
US10955204B2 (en) * 2017-08-16 2021-03-23 Zrodelta, Llc Pistol
USD869593S1 (en) * 2018-01-18 2019-12-10 Paul T. Noonan Backstrap
US11543197B2 (en) * 2018-01-18 2023-01-03 Paul T. Noonan Handgun having metallic rails within a polymeric frame
US20230138874A1 (en) * 2020-04-08 2023-05-04 Glock Technology Gmbh Recoil spring abutment for a slide of a modular handgun
US11187492B2 (en) * 2020-04-18 2021-11-30 Henry Hanson Mumford Modular compact firearm system
US11143473B1 (en) * 2020-09-22 2021-10-12 Dasan Machineries Co., Ltd. Frame assembly for pistol
EP3971513A1 (en) * 2020-09-22 2022-03-23 Dasan Machineries Co., Ltd Frame assembly for pistol
USD1049292S1 (en) * 2021-04-06 2024-10-29 Springfield, Inc. Pistol

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