WO2019086974A1 - Mécanisme de frappe d'un pistolet à chargement automatique - Google Patents

Mécanisme de frappe d'un pistolet à chargement automatique Download PDF

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Publication number
WO2019086974A1
WO2019086974A1 PCT/IB2018/057486 IB2018057486W WO2019086974A1 WO 2019086974 A1 WO2019086974 A1 WO 2019086974A1 IB 2018057486 W IB2018057486 W IB 2018057486W WO 2019086974 A1 WO2019086974 A1 WO 2019086974A1
Authority
WO
WIPO (PCT)
Prior art keywords
hammer
control cam
cam
axis
striking
Prior art date
Application number
PCT/IB2018/057486
Other languages
English (en)
Inventor
Viktor SHAMRAI
Original Assignee
Shamrai Viktor
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 Shamrai Viktor filed Critical Shamrai Viktor
Publication of WO2019086974A1 publication Critical patent/WO2019086974A1/fr

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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
    • F41A19/42—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
    • F41A19/45—Sear arrangements therefor for catching the hammer after each shot, i.e. in single-shot or semi-automatic firing mode

Definitions

  • the invention relates to a striking mechanism of a self-loading pistol comprising a hammer rotatably arranged in the rear portion of the pistol frame which is coupled by means of a pull rod to a control cam which is provided with a striking protrusion and which is coupled to a striker spring and a trigger.
  • VIGrand s.r.o. (Czech patent 306500). It is a self-loading-pistol which has a frame with a barrel fixedly and non-movably mounted in the frame and a mechanism for locking a slide during a shot arranged below the barrel.
  • the striking mechanism of the pistol consists of a trigger, a hammer stop, a hammer pull rod, a hammer and a firing pin, and a striker spring and return springs of the trigger and of the hammer stop.
  • the firing pin is mounted inside the slide, the hammer is mounted in the rear portion of the pistol behind the slide and the other parts are arranged below the barrel in the trigger area.
  • the striker spring is arranged on the axis of a pivotable cam
  • the striker spring is arranged below the axis of the pivotable cam, with one end thereof resting on the axis of the pivotable cam and the other bent end extending to a hole in the lower portion of the pivotable cam.
  • the disadvantage is the large load on the axis of the pivotable cam during vigorous automatic cocking of the hammer by the movement of the slider during a shot.
  • the load is caused by the fact that the pivotable cam copies with its dimensions the lower portion of the hammer, i.e. the distance from the axis of rotation of the cam to the axis of the mounting of the pull rod of the hammer in the cam is the same as the distance from the axis of rotation of the hammer to the axis of the mounting of the pull rod in the hammer.
  • this distance appears to be small and the angle by which the cam is turned is the same (approximately 60 °) as the angle by which the hammer is turned.
  • the working stroke of the striker spring is the same, but the length of its working arm is small, which may cause a short life of the striker spring.
  • the aim of the invention is to reduce the load on the axis of the pivotable cam and to extend the service life of the striker spring.
  • the aim of the invention is achieved by a striking mechanism of a self loading pistol, the principle of which consists in that a lifter of a stop of a striking protrusion of a control cam of a hammer is rotatably mounted on a trigger, whereby in the pistol frame behind the control cam is mounted a U-shaped striker spring, the rear arm of which abuts the frame and the front arm abuts the rear portion of the control cam.
  • the striker spring is formed by a wound spring in which at least one thread is formed between the rear arm and the front working arm, thereby increasing the force effect of the striker spring.
  • the striker spring can be formed by a flat spring or a wire spring, whereby in a preferred embodiment, the striker spring is formed by a pair of wire-wound springs, whose front working arm are connected to each other by a cross-piece, which increases the reliability of its contact with the control cam.
  • the lifter is at the end provided with a catch tooth for interacting with the free end of the stop of the striking protrusion of the control cam of the hammer.
  • the control cam of the hammer is rotatably mounted on the axis on the pistol frame in the trigger area, whereby the distance between the axis of rotation of the control cam and the axis of a pin on which a pull rod is mounted on the control cam is greater than the distance between the axis of rotation of the hammer and he axis of a pin for mounting the pull rod on the hammer.
  • Fig. 1 shows a part of a pistol frame with parts of a striking mechanism in the initial state when the hammer is in the forward position
  • Fig. 2 shows the part of the pistol frame with the parts of the striking mechanism in the cocked state before the shot when the hammer is in its rear position
  • Fig. 3a shows a control cam viewed from the front of the weapon
  • Fig. 3b shows the control cam in a side view
  • Fig. 4a shows a striker spring viewed from the front of the weapon
  • Fig. 4b is a side view of the striker spring.
  • a striking mechanism of a self-loading pistol comprises a hammer 1 rotatably arranged on an axis 2 in the rear portion of a frame 3 of the pistol, as is shown in Figs. 2 and 3.
  • the hammer 1 is provided with a hole in which a pull rod 5 is mounted on a pin 4.
  • the other end of the pull rod 5js mounted on a pin 6 arranged in a control cam 7, which is rotatably mounted about an axis 71 in a frame 3 of the pistol below a slide in the area of a trigger 8.
  • a striking protrusion 72 is formed to interact with a free end ⁇ 1 of a stop 9.
  • the distance between the axis of rotation 7 ⁇ of the control cam 7 and the axis of the pin 6, on which a pull rod 5 on the control cam 7is mounted, is greater than the distance between the axis of rotation 2 of the hammer ⁇ and the axis of the pin 4, on which the pul! rod 5 on the hammer 1_ is mounted.
  • a trigger is mounted rotatably in a known manner 8, on which is mounted with its lower end a lifter 10 of the stop 9 of the control cam 7, on whose upper end a catch tooth 101 is provided for interacting with the free end 91 of the stop 9.
  • the trigger 8, the stop 9 and the lifter 10 of the stop are coupled in a known manner to known unillustrated return springs.
  • a U-shaped hammer T1 is provided, whose rear arm 110 rests against the pistol frame 3, and whose front arm 111. which is longer than the rear arm 110, is supported from behind by the upper portion of the cam 7.
  • the striker spring jj_ is wound, and at least one thread 112 is formed between the arms 110, 111.
  • the wound striker spring 11 can be formed by a flat wound spring or several flat wound springs arranged side by side.
  • the wound striker spring 11_ may be formed by a wire- wound spring or several wire-wound springs arranged side by side, whereby in the illustrated embodiment, the striker spring 111 is formed by a pair of wire- wound striker springs, whose front working arms 111 are connected by a cross- piece 113.
  • the striker spring 11_ may be formed by one or more flat U-shaped wire springs without a thread between the arms.
  • the U-shaped striker spring 11_ is compressed and presses with its long front working arm 111 against the upper portion of the cam 7 from behind, the trigger 8 is in the front position and the lifter 10. of the stop 9 mounted on the trigger 8 is in the lower position.
  • the known unillustrated return springs of the trigger 8 and the lifter 10 of the stop 9 mounted on the trigger 8 are released and are in the preloaded position.
  • the trigger 8 turns anticlockwise and raises the lifter 10.
  • the lifter 10 raises the free end 9i of the stop 9 of the striking protrusion 72 of the cam 7, which is captured on the catch tooth 101 of the lifter 10 and releases the cam 7.
  • Due to the action of the striker spring 11 the cam 7 turns vigorously anticlockwise and by means of the pull rod 5 turns the hammer 1 just as vigorously anticlockwise.
  • the hammer 1 transmits the energetic strike to the striker in the slide which breaks the percussion cap of the cartridge which is situated in the cartridge chamber of the pistol barrel.
  • the slide moves backwards and vigorously turns the hammer 1_ counterclockwise.
  • the hammer 1 just as vigorously turns the cam 7 in a clockwise direction and compresses the striker spring JJL
  • the free end 91 of the stop 9 is lowered by the action of its return spring and engages with the striking protrusion 72 of the cam 7.
  • the cam 7 stops in the striking position and so does the hammer 1.
  • the striking mechanism is cocked and the pistol is ready for the next shot. To fire the shot, it is necessary to release the trigger 8 and then press it again.
  • the invention ensures a much smaller load on the cam axis 7, especially when the hammer 1 is automatically cocked by the slide of the pistol during a shot, and, in addition, it extends the service life of the striker spring JJL Industrial applicability
  • the striking mechanism according to the invention is intended for self- loading pistols.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

L'invention concerne un mécanisme de frappe d'un pistolet à chargement automatique comprenant un marteau (1) disposé de manière rotative dans la partie arrière du cadre de pistolet (3), qui est couplé au moyen d'une tige de traction (5) à une came de commande (7) pourvue d'une saillie de frappe (72), la came de commande (7) étant couplée à un ressort de percussion (11) et à une gâchette (8). Un dispositif de levage (10) d'une butée (9) de la saillie de frappe (72) de la came de commande (7) du marteau (1) est monté de manière rotative sur la gâchette (8). Ainsi, dans le cadre de pistolet (3) derrière la came de commande (7) est monté un ressort de percussion en forme de U (11) dont le bras arrière (110) vient en butée contre le cadre (3) et dont le bras de travail avant (111) vient en butée contre la partie arrière de la came de commande (7).
PCT/IB2018/057486 2017-11-02 2018-09-27 Mécanisme de frappe d'un pistolet à chargement automatique WO2019086974A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZPV2017-704 2017-11-02
CZ2017-704A CZ2017704A3 (cs) 2017-11-02 2017-11-02 Bicí mechanizmus samonabíjecí pistole

Publications (1)

Publication Number Publication Date
WO2019086974A1 true WO2019086974A1 (fr) 2019-05-09

Family

ID=66332995

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2018/057486 WO2019086974A1 (fr) 2017-11-02 2018-09-27 Mécanisme de frappe d'un pistolet à chargement automatique

Country Status (2)

Country Link
CZ (1) CZ2017704A3 (fr)
WO (1) WO2019086974A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112129161A (zh) * 2020-08-24 2020-12-25 南京理工大学 适用于埋头弹的机枪自动机机构

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4321764A (en) * 1978-10-20 1982-03-30 Llama Gabilonda Y. Cia. S.A. Hammer actuator
US4589327A (en) * 1983-03-28 1986-05-20 Smith David E Firing lock with safety system for self loading fire arms
US5160796A (en) * 1991-10-07 1992-11-03 Martin Tuma Automatic small arm
US6405631B1 (en) * 2001-01-26 2002-06-18 Robert C. Milek Semi-automatic handgun
WO2009065161A1 (fr) * 2007-11-23 2009-05-28 Gaston Glock Mécanisme de détente d'une arme à feu de poing
US9046313B1 (en) * 2013-12-04 2015-06-02 O.F. Mossberg & Sons, Inc. Adjustable modular trigger assembly for firearms
CZ306500B6 (cs) 2015-11-05 2017-02-15 Viktor Shamrai Samonabíjecí pistole

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6615527B1 (en) * 2002-06-28 2003-09-09 Derrick J. Martin Trigger mechanism
CZ301749B6 (cs) * 2007-06-26 2010-06-09 Ceská Zbrojovka, a. s. Dvojcinný spouštový mechanismus samonabíjecí pistole
US9146067B2 (en) * 2013-06-17 2015-09-29 Michael A. Stakes Trigger mechanism
US9175917B2 (en) * 2013-12-03 2015-11-03 Terrence Dwight Bender Trigger with cam

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4321764A (en) * 1978-10-20 1982-03-30 Llama Gabilonda Y. Cia. S.A. Hammer actuator
US4589327A (en) * 1983-03-28 1986-05-20 Smith David E Firing lock with safety system for self loading fire arms
US5160796A (en) * 1991-10-07 1992-11-03 Martin Tuma Automatic small arm
US6405631B1 (en) * 2001-01-26 2002-06-18 Robert C. Milek Semi-automatic handgun
WO2009065161A1 (fr) * 2007-11-23 2009-05-28 Gaston Glock Mécanisme de détente d'une arme à feu de poing
US9046313B1 (en) * 2013-12-04 2015-06-02 O.F. Mossberg & Sons, Inc. Adjustable modular trigger assembly for firearms
CZ306500B6 (cs) 2015-11-05 2017-02-15 Viktor Shamrai Samonabíjecí pistole
CA3003087A1 (fr) * 2015-11-05 2017-05-11 Viktor SHAMRAI Pistolet automatique a securite de fermeture selective retardant le mouvement d'ouverture pendant le tir, mais facilitant l'armement manuel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112129161A (zh) * 2020-08-24 2020-12-25 南京理工大学 适用于埋头弹的机枪自动机机构

Also Published As

Publication number Publication date
CZ307506B6 (cs) 2018-10-24
CZ2017704A3 (cs) 2018-10-24

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