WO2003076863A1 - Firearm with dynamic breechblock - Google Patents

Firearm with dynamic breechblock Download PDF

Info

Publication number
WO2003076863A1
WO2003076863A1 PCT/SK2003/000005 SK0300005W WO03076863A1 WO 2003076863 A1 WO2003076863 A1 WO 2003076863A1 SK 0300005 W SK0300005 W SK 0300005W WO 03076863 A1 WO03076863 A1 WO 03076863A1
Authority
WO
WIPO (PCT)
Prior art keywords
breechblock
frame
firing mechanism
mechanism housing
barrel
Prior art date
Application number
PCT/SK2003/000005
Other languages
French (fr)
Other versions
WO2003076863A8 (en
Inventor
Jan Lucansky
Peter Tvrdy
Frantisek GASPARÍK
Original Assignee
Jan Lucansky
Peter Tvrdy
Gasparik Frantisek
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 Jan Lucansky, Peter Tvrdy, Gasparik Frantisek filed Critical Jan Lucansky
Priority to AU2003214794A priority Critical patent/AU2003214794A1/en
Publication of WO2003076863A1 publication Critical patent/WO2003076863A1/en
Publication of WO2003076863A8 publication Critical patent/WO2003076863A8/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
    • F41A19/15—Modular firing mechanism units
    • 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
    • F41A11/00—Assembly or disassembly features; Modular concepts; Articulated or collapsible guns
    • 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
    • F41A3/78—Bolt buffer or recuperator means
    • F41A3/82—Coil spring buffers

Definitions

  • the invention relates to a firearm with dynamic breechblock, more particularly, to personal defense weapon, comprising a frame with pistol grip and folding stock, the frame further comprising breechblock chamber with a breechblock, a cover enclosing a barrel, wherein cocking slide lever with cocking slide is mounted, a firing mechanism, magazine catch and magazine well.
  • Known firearm assemblies with dynamic breechblock commonly have firing mechanism along with magazine well and a magazine catch united in a frame, wherein breechblock slides in slots or on guide rod, and can be reached only when the rear or top cover of the gun is removed.
  • a barrel is also connected to the frame and affixed by a bayonet lock, or by a boss at the chamber end of the barrel.
  • Disadvantages of known assemblies reside especially in that they involve large number of parts having the main bodies of complex shape. Disassembling and rearrangement of these firearms involves many steps, which, if not periodically practiced, significantly impede assembling and disassembling of the firearm. Modifying the caliber of a weapon is hindered as well, demanding the number of related parts to be changed, making it impossible to carry out en march without application of purpose- designed tools.
  • the above drawbacks are significantly reduced in present firearm with dynamic breechblock, more particularly personal defense weapon, comprising a frame with the pistol grip and folding stock, the frame further comprising a breechblock chamber with a breechblock, a cover enclosing a barrel, wherein a cocking slide lever with a cocking slide is mounted, a firing mechanism, a magazine catch and a magazine well, of the character, the breechblock is slidably mounted on a firing mechanism housing.
  • the firing mechanism housing comprises a trigger mechanism, a hammer assembly, an integrated safety/shot selector assembly, a trigger guard and magazine well with magazine catch.
  • the breechblock slides on guide rod.
  • Rear of the firing mechanism housing is lodged in the frame and its front is pinned to the frame by means of an assembly pin slidably disposed in a hole aligned in the firing mechanism housing and the frame.
  • the cover is disposed on the barrel screwed into a fixing collar, and removably fixedly attached to the frame by means of a muzzle nut screwed on the barrel.
  • breechblock bears a recess accessible through cartridge ejection port.
  • the frame and firing mechanism housing are made of plastics. Assembly of the weapon follows an idea of utmost simplicity, production easiness, user friendliness and highest reliability in every meteorological condition. Further advantages encompass versatility, instant replaceability of main parts, i. e. the barrel, breechblock and firing mechanism housing, resulting in very simple and fast assembly and disassembly of the weapon. Having the breechblock not sliding in slots provided in the frame, it is then possible to pull out the breechblock downward after firing mechanism housing is released from its lodge.
  • Fig. 1 is overall view of internal arrangement of the firearm
  • Fig. 2 exploded plan view of internal arrangement of the firearm with the firing mechanism housing and breechblock released from their positions
  • Fig. 3 side view of the firearm from the cartridge ejection port side.
  • Firearm shown in Fig. 1 comprises a frame 1 with pistol grip 35 and folding stock 38 within the frame 1_ there is dynamic breechblock 5, slidably mounted on a guide rod 11, having a recess 52 formed on and accessible through a cartridge ejection port 5_i cut in the frame 1.
  • Front end of the frame 1 houses a fixing collar la of a barrel 3 and has hole 48 drilled.
  • the barrel 3 is screwed in the fixing collar la and extends through a cover 2 removably fixedly connected to the frame 1 by means of muzzle nut 6.
  • Upper cavity of the cover 2 houses a cocking slide 16 of the breechblock 5 provided with a cocking slide lever 14 above the barrel 3.
  • a firing mechanism housing 24 comprising a trigger mechanism 27, a hammer assembly 26, an integrated safety 34/shot selector 3 . assembly, a trigger guard 47 and magazine well 4 with magazine catch 18, where a magazine 42 is inserted, is with its rear lodged in the frame ⁇ and its front is pinned to the frame 1 by means of an assembly pin 17 slidably disposed in a hole 48 aligned in the firing mechanism housing 24 and the frame I.
  • Dynamic breechblock 5 have a recess 52 formed on accessible through a cartridge ejection port 5_i cut in the frame I.
  • Firearm with dynamic breechblock in particular embodiment of Fig. 1 comprises unlocked prism shaped dynamic breechblock 5.
  • the breechblock 5 does not slide in slots provided in the frame i, but it is advantageously disposed on a guide rod !i . This allows the frame I to be made of stampings as well as of moulded plastics.
  • the weapon fires in the front position of the breechblock 5, in the rear position recoil is absorbed by a hybrid bumper 13.
  • the hammer assembly 26 and trigger mechanism 27 is housed in the firing mechanism housing 24, which may preferably be made of plastics.
  • the trigger 28 has maximum resistance of 16 N.
  • the integrated safety 34/shot selector 3JL assembly has double-sided selector lever 30, the catch 18 of a magazine 42 is positioned before the trigger guard 47 thus accessible form both sides.
  • the lever 14 of the cocking slide 16 protrudes leftward in the upper front portion of the cover 2 and when the gun is fired it stays still.
  • the barrel 3 has a bore with a standard rifling 250 mm long.
  • the barrel 3 is not parallel to the frame I but is slightly biased upwards. Such an arrangement lowers moment of recoil and reduces shift of a gun as a result of recoil.
  • Manual integrated safety 34/shot selector 3_1 assembly operated by double-sided selector lever 30 with the "safe”, “full automatic” and “semi automatic” positions.
  • Vertical box type magazine 42 carrying 10, 20 and 30 cartridges are double- column feed type. Disassembling of the firearm is very easy. It is carried in a manner that the lever 14 of the cocking slide 6 is pulled backwards and turned 90° upwards. The breechblock 5 is thus moved to cocked position. Pulling the assembly pin 17 out leftwards, the firing mechanism housing 24 is disconnected from the frame whereas the firing mechanism housing 24 opens downwards and then the breechblock 5 along with the guide rod 1_1 are released in the same direction.
  • the firearm can be assembled/disassembled en march within 15 seconds.
  • Firearm assembly allows an instant replacement of main bodies, the barrel, breechblock, firing mechanism housing , i. e. altering barrel length and caliber, with possibility to attach sound suppressor, change of the firing mechanism housing with various firing modes, with or without hammer safety.
  • the assembly further allows to use the great number of gun accessories, without application of weaver base adapters, atop the frame, e.g. "iron” sight, rifle scope or on the cover e. g. laser sighting system, lamp, fore handgrip.
  • Firearm according to present invention is usable as personal defense weapon in weaponry of army, police, special forces, and other various types of armed forces.

Abstract

Firearm with dynamic breechblock, more particularly personal defense weapon, comprising a frame with the pistol grip and folding stock, the frame further comprising a breechblock chamber with a breechblock, a cover enclosing a barrel, wherein a cocking slide lever with a cocking slide is mounted, a firing mechanism, a magazine catch and a magazine well. The breechblock~ (5) is slidably mounted on the firing mechanism housing (24), the firing mechanism housing comprising the trigger mechanism (27), the hammer assembly (26), the integrated safety (34)/shot selector (31) assembly, the trigger guard (47) and the magazine well (4) with magazine catch (18). The breechblock (5)slides on the guide rod (11). Rear of the firing mechanism housing (24) is lodged in the frame (1) and its front is pinned to the frame (1) by means of the assembly pin (17). Assembly pin (17) is slidably disposed in the hole (48) aligned in the firing mechanism housing (24) and the frame (1). The cover (2) is disposed on the barrel (3) screwed into the fixing collar (la), and removably fixedly attached to the frame (1) by means of the muzzle nut (6) screwed on the barrel (3).

Description

Firearm with dynamic breechblock
Technical Field
The invention relates to a firearm with dynamic breechblock, more particularly, to personal defense weapon, comprising a frame with pistol grip and folding stock, the frame further comprising breechblock chamber with a breechblock, a cover enclosing a barrel, wherein cocking slide lever with cocking slide is mounted, a firing mechanism, magazine catch and magazine well.
Background Art
Known firearm assemblies with dynamic breechblock commonly have firing mechanism along with magazine well and a magazine catch united in a frame, wherein breechblock slides in slots or on guide rod, and can be reached only when the rear or top cover of the gun is removed. A barrel is also connected to the frame and affixed by a bayonet lock, or by a boss at the chamber end of the barrel.
Disadvantages of known assemblies reside especially in that they involve large number of parts having the main bodies of complex shape. Disassembling and rearrangement of these firearms involves many steps, which, if not periodically practiced, significantly impede assembling and disassembling of the firearm. Modifying the caliber of a weapon is hindered as well, demanding the number of related parts to be changed, making it impossible to carry out en march without application of purpose- designed tools.
Disclosure of Invention
The above drawbacks are significantly reduced in present firearm with dynamic breechblock, more particularly personal defense weapon, comprising a frame with the pistol grip and folding stock, the frame further comprising a breechblock chamber with a breechblock, a cover enclosing a barrel, wherein a cocking slide lever with a cocking slide is mounted, a firing mechanism, a magazine catch and a magazine well, of the character, the breechblock is slidably mounted on a firing mechanism housing. The firing mechanism housing comprises a trigger mechanism, a hammer assembly, an integrated safety/shot selector assembly, a trigger guard and magazine well with magazine catch. The breechblock slides on guide rod. Rear of the firing mechanism housing is lodged in the frame and its front is pinned to the frame by means of an assembly pin slidably disposed in a hole aligned in the firing mechanism housing and the frame. The cover is disposed on the barrel screwed into a fixing collar, and removably fixedly attached to the frame by means of a muzzle nut screwed on the barrel.
Advantage is when the breechblock bears a recess accessible through cartridge ejection port.
Advantage also is, when the frame and firing mechanism housing are made of plastics. Assembly of the weapon follows an idea of utmost simplicity, production easiness, user friendliness and highest reliability in every meteorological condition. Further advantages encompass versatility, instant replaceability of main parts, i. e. the barrel, breechblock and firing mechanism housing, resulting in very simple and fast assembly and disassembly of the weapon. Having the breechblock not sliding in slots provided in the frame, it is then possible to pull out the breechblock downward after firing mechanism housing is released from its lodge.
Brief Description of Drawings
The invention is further disclosed on accompanying drawings where Fig. 1 is overall view of internal arrangement of the firearm; Fig. 2 exploded plan view of internal arrangement of the firearm with the firing mechanism housing and breechblock released from their positions; and Fig. 3 side view of the firearm from the cartridge ejection port side.
Best Mode for Carrying Out the Invention
Firearm shown in Fig. 1 comprises a frame 1 with pistol grip 35 and folding stock 38 within the frame 1_ there is dynamic breechblock 5, slidably mounted on a guide rod 11, having a recess 52 formed on and accessible through a cartridge ejection port 5_i cut in the frame 1. Front end of the frame 1 houses a fixing collar la of a barrel 3 and has hole 48 drilled. The barrel 3 is screwed in the fixing collar la and extends through a cover 2 removably fixedly connected to the frame 1 by means of muzzle nut 6. Upper cavity of the cover 2 houses a cocking slide 16 of the breechblock 5 provided with a cocking slide lever 14 above the barrel 3. A firing mechanism housing 24 comprising a trigger mechanism 27, a hammer assembly 26, an integrated safety 34/shot selector 3 . assembly, a trigger guard 47 and magazine well 4 with magazine catch 18, where a magazine 42 is inserted, is with its rear lodged in the frame \ and its front is pinned to the frame 1 by means of an assembly pin 17 slidably disposed in a hole 48 aligned in the firing mechanism housing 24 and the frame I. Dynamic breechblock 5, have a recess 52 formed on accessible through a cartridge ejection port 5_i cut in the frame I.
Firearm with dynamic breechblock in particular embodiment of Fig. 1 comprises unlocked prism shaped dynamic breechblock 5. When firing the gun, the breechblock 5 does not slide in slots provided in the frame i, but it is advantageously disposed on a guide rod !i . This allows the frame I to be made of stampings as well as of moulded plastics.
The weapon fires in the front position of the breechblock 5, in the rear position recoil is absorbed by a hybrid bumper 13. The hammer assembly 26 and trigger mechanism 27 is housed in the firing mechanism housing 24, which may preferably be made of plastics. The trigger 28 has maximum resistance of 16 N. The integrated safety 34/shot selector 3JL assembly has double-sided selector lever 30, the catch 18 of a magazine 42 is positioned before the trigger guard 47 thus accessible form both sides. The lever 14 of the cocking slide 16 protrudes leftward in the upper front portion of the cover 2 and when the gun is fired it stays still. Moving the breechblock 5 to his uncocked position, in an operation failure, allows the recess 52 formed in the breechblock 5 accessible through the cartridge ejection port 5J, cut in the frame L The breechblock 5 is then, if necessary, moved by simply pushing a finger against the recess 52. The barrel 3 has a bore with a standard rifling 250 mm long. The barrel 3 is not parallel to the frame I but is slightly biased upwards. Such an arrangement lowers moment of recoil and reduces shift of a gun as a result of recoil.
Manual integrated safety 34/shot selector 3_1 assembly operated by double-sided selector lever 30 with the "safe", "full automatic" and "semi automatic" positions. Vertical box type magazine 42 carrying 10, 20 and 30 cartridges are double- column feed type. Disassembling of the firearm is very easy. It is carried in a manner that the lever 14 of the cocking slide 6 is pulled backwards and turned 90° upwards. The breechblock 5 is thus moved to cocked position. Pulling the assembly pin 17 out leftwards, the firing mechanism housing 24 is disconnected from the frame whereas the firing mechanism housing 24 opens downwards and then the breechblock 5 along with the guide rod 1_1 are released in the same direction. The firearm can be assembled/disassembled en march within 15 seconds.
Firearm assembly according to present invention allows an instant replacement of main bodies, the barrel, breechblock, firing mechanism housing , i. e. altering barrel length and caliber, with possibility to attach sound suppressor, change of the firing mechanism housing with various firing modes, with or without hammer safety. The assembly further allows to use the great number of gun accessories, without application of weaver base adapters, atop the frame, e.g. "iron" sight, rifle scope or on the cover e. g. laser sighting system, lamp, fore handgrip.
Industrial applicability
Firearm according to present invention is usable as personal defense weapon in weaponry of army, police, special forces, and other various types of armed forces.

Claims

1. Firearm with dynamic breechblock, more particularly personal defense weapon, comprising a frame with the pistol grip and folding stock, the frame further comprising a breechblock chamber with a breechblock, a cover enclosing a barrel, wherein a cocking slide lever with a cocking slide is mounted, a firing mechanism, a magazine catch and a magazine well, characterized in that, the breechblock (5) is slidably mounted on the firing mechanism housing (24), the firing mechanism housing comprising the trigger mechanism (27), the hammer assembly (26), the integrated safety (34)/shot selector (31) assembly, the trigger guard (47) and the magazine well (4) with magazine catch (18), and the breechblock (5)slides on the guide rod (11), rear of the firing mechanism housing (24) is lodged in the frame (1) and its front is pinned to the frame (1) by means of the assembly pin (17) slidably disposed in the hole (48) aligned in the firing mechanism housing (24) and the frame (1) whereas the cover (2) is disposed on the barrel (3) screwed into the fixing collar (la), and removably fixedly attached to the frame (1) by means of the muzzle nut (6) screwed on the barrel (3).
2. Firearm according to claim 1, characterized in that, the breechblock (5) bears a recess (52) accessible through cartridge ejection port (51).
3. Firearm according to claim 1 and 2, characterized in that, the frame ( 1 ) is made of plastics .
4. Firearm according to claim 1, 2 or 3, characterized in that, the firing mechanism housing (24) is made of plastics.
PCT/SK2003/000005 2002-03-13 2003-03-07 Firearm with dynamic breechblock WO2003076863A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003214794A AU2003214794A1 (en) 2002-03-13 2003-03-07 Firearm with dynamic breechblock

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SKPP364-2002 2002-03-13
SK364-2002A SK285464B6 (en) 2002-03-13 2002-03-13 Firearm with dynamic breech

Publications (2)

Publication Number Publication Date
WO2003076863A1 true WO2003076863A1 (en) 2003-09-18
WO2003076863A8 WO2003076863A8 (en) 2004-06-10

Family

ID=27800935

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SK2003/000005 WO2003076863A1 (en) 2002-03-13 2003-03-07 Firearm with dynamic breechblock

Country Status (4)

Country Link
AU (1) AU2003214794A1 (en)
CZ (2) CZ301998B6 (en)
SK (1) SK285464B6 (en)
WO (1) WO2003076863A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007030843A1 (en) * 2005-09-14 2007-03-22 Cura Investholding Gmbh Housing for a rifle
WO2007122626A3 (en) * 2006-04-26 2007-12-21 Silver Shadow Advanced Securit Assault pistol rifle
EP2045560A2 (en) * 2007-10-04 2009-04-08 Fabbrica d'Armi Pietro Beretta S.p.A. Firearm with detachable trigger group module
US8061260B2 (en) 2009-06-22 2011-11-22 Ra Brands, L.L.C. Gas plug retention and removal device
USD661364S1 (en) 2010-06-21 2012-06-05 Ra Brands, L.L.C. Gas block
US10488134B2 (en) 2018-02-20 2019-11-26 Krl Holding Company, Inc. Two-stage, drop-in trigger assembly
US10837728B2 (en) 2018-02-20 2020-11-17 Krl Holding Company, Inc. Two-stage, drop-in trigger assembly
US20220341706A1 (en) * 2021-04-27 2022-10-27 Biofire Technologies Inc. Gun attachment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1394566A (en) * 1963-05-20 1965-04-02 Heckler & Koch Gmbh Automatic gun
US3227046A (en) * 1963-05-20 1966-01-04 Messrs Heckler & Koch G M B H Automatic pistol
US5717156A (en) * 1996-02-12 1998-02-10 Smith & Wesson Corp. Semi-automatic pistol
US5913261A (en) * 1996-06-28 1999-06-15 Heckler & Koch Gmbh Trigger arrangement

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS156725B1 (en) * 1970-06-19 1974-08-23
US3766677A (en) * 1971-09-07 1973-10-23 Innovation Resources Corp Pivotal barrel and receiver assembly having a removably mounted breech block
CS250461B1 (en) * 1985-11-27 1987-04-16 Lubomir Popelinsky Revolving closure of automatic weapon accomodated in straitened space
CZ85996A3 (en) * 1996-03-22 1997-04-16 Pavel Hubacek Breech mechanism of hand-held firearm

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1394566A (en) * 1963-05-20 1965-04-02 Heckler & Koch Gmbh Automatic gun
US3227046A (en) * 1963-05-20 1966-01-04 Messrs Heckler & Koch G M B H Automatic pistol
US5717156A (en) * 1996-02-12 1998-02-10 Smith & Wesson Corp. Semi-automatic pistol
US5913261A (en) * 1996-06-28 1999-06-15 Heckler & Koch Gmbh Trigger arrangement

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8028458B2 (en) 2005-09-14 2011-10-04 Steyr Mannlicher Holding Gmbh Housing for a rifle
WO2007030843A1 (en) * 2005-09-14 2007-03-22 Cura Investholding Gmbh Housing for a rifle
WO2007122626A3 (en) * 2006-04-26 2007-12-21 Silver Shadow Advanced Securit Assault pistol rifle
EP2045560A3 (en) * 2007-10-04 2012-11-28 FABBRICA D'ARMI PIETRO BERETTA S.p.A. Firearm with detachable trigger group module
EP2045560A2 (en) * 2007-10-04 2009-04-08 Fabbrica d'Armi Pietro Beretta S.p.A. Firearm with detachable trigger group module
US8061260B2 (en) 2009-06-22 2011-11-22 Ra Brands, L.L.C. Gas plug retention and removal device
USD661364S1 (en) 2010-06-21 2012-06-05 Ra Brands, L.L.C. Gas block
US10488134B2 (en) 2018-02-20 2019-11-26 Krl Holding Company, Inc. Two-stage, drop-in trigger assembly
US10837728B2 (en) 2018-02-20 2020-11-17 Krl Holding Company, Inc. Two-stage, drop-in trigger assembly
US11566862B2 (en) 2018-02-20 2023-01-31 Lewis Machine & Tool Co. Two-stage, drop-in trigger assembly
US20220341706A1 (en) * 2021-04-27 2022-10-27 Biofire Technologies Inc. Gun attachment
US20220341694A1 (en) * 2021-04-27 2022-10-27 Biofire Technologies Inc. Threaded gun attachment
US11913744B2 (en) * 2021-04-27 2024-02-27 Biofire Technologies Inc. Gun attachment

Also Published As

Publication number Publication date
CZ2004942A3 (en) 2004-12-15
SK285464B6 (en) 2007-02-01
CZ20778U1 (en) 2010-04-12
AU2003214794A1 (en) 2003-09-22
SK3642002A3 (en) 2003-10-07
WO2003076863A8 (en) 2004-06-10
CZ301998B6 (en) 2010-09-01

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