EP2019959B1 - Locking mechanism of a hand firearm - Google Patents

Locking mechanism of a hand firearm Download PDF

Info

Publication number
EP2019959B1
EP2019959B1 EP07721823A EP07721823A EP2019959B1 EP 2019959 B1 EP2019959 B1 EP 2019959B1 EP 07721823 A EP07721823 A EP 07721823A EP 07721823 A EP07721823 A EP 07721823A EP 2019959 B1 EP2019959 B1 EP 2019959B1
Authority
EP
European Patent Office
Prior art keywords
single arm
engagement
transmission lever
cross
arm transmission
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.)
Not-in-force
Application number
EP07721823A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2019959A2 (en
Inventor
Ladislav Findorak
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.)
Czech Weapons Sro
Original Assignee
Czech Weapons Sro
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 Czech Weapons Sro filed Critical Czech Weapons Sro
Publication of EP2019959A2 publication Critical patent/EP2019959A2/en
Application granted granted Critical
Publication of EP2019959B1 publication Critical patent/EP2019959B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/12—Bolt action, i.e. the main breech opening movement being parallel to the barrel axis
    • F41A3/54—Bolt locks of the unlocked type, i.e. being inertia operated
    • F41A3/56—Bolt locks of the unlocked type, i.e. being inertia operated the bolt being provided with an additional slidable mass

Definitions

  • the single arm transmission lever is provided with a firing element, which is arranged in a limited sliding way and has an end intended for an engagement with the firing pin and the opposite end for an engagement with the striking surface of the hammer.
  • An advantage of the locking mechanism of a hand firearm according to the invention consists in the fact, that the unfavourable recoil of the locking mechanism is prevented by preventing any springing of the single arm transmission lever. So the firing of the cartridge is safe and reliable in any mode of firing and in any position of the firearm. This is achieved especially due the fact that, when the locking mechanism is in the locked position, the single arm transmission lever is inactive as a mass reducer and as an accelerator for a requisite time, so that the transmission ratio of the single arm transmission lever is not utilised until the moment of firing of the cartridge. This is possible because the engagement surface on the cross stop of the single arm lever does not contact the stop surface of the cross trip on the cutoff case until the moment of firing of the cartridge and there is a locking clearance between them. Said locking clearance prevents any springing on the single arm transmission lever and therefore also any transmission of elastic forces modified by the transmission ratio of the single arm transmission lever via its cylindrical crossbar onto the mass of the carrier of the breech block is prevented.
  • FIG. 1 shows a front view of a sectional longitudinal axial section of a hand firearm with a locking mechanism in the locked position just after the firing of the cartridge
  • Fig. 2 shows the front view of the same section of the hand firearm with the locking mechanism in she open position
  • Fig. 3 shows a partial view and a partial section of the detail A of Fig. 1
  • Fig. 4 shows a partial view and a partial section of the detail B of Fig. 1
  • Fig. 5 shows a front view of a partial longitudinal axial section of a cutoff case
  • Fig. 6 shows a cross section of the cutoff case along the line VI-VI in Fig. 5
  • Fig. 7 shows a cross section of a part of the cutoff case with a breech block, its carrier and its enclosure along the line VII-VII in Fig. 2
  • Fig. 8 shows a transmission lever in the direction from the barrel.
  • the locking mechanism according to Fig. 1 consists of a breech block 1 provided on its upper side with a carrier 2 , having a stepped through hole 3 , inside which a return spring 5 is arranged on a guide bar 4 .
  • the rear end of the spring 5 is supported by a perpendicular wall 6, which closes the rear end of a cutoff case 7 and in which the rear end of the guide bar 4 of the return spring 5 is anchored.
  • the perpendicular wall 6 is a part of a mounting seat 8 of a butt (not shown) of the hand firearm, the mounting seat 8 being inserted in the rear part of the cutoff case 7 to which it is fastened by means of a mounting pin 9 .
  • a bow 25 arranged backwards next to the longitudinal sleeve 20 , a trigger 26 protrudes into the bow 25 and a magazine lock 27 is hinged flexibly by a cross bolt 28 in the bow 25 .
  • the rear part of the supporting frame 17 is provided with a grip 29 .
  • the cutoff case 7 is closed at its upper side and its lateral sides by an enclosure 30 with an ejection slot 31 for empty shells 32 ( Fig. 1 ).
  • a firing pin 33 with a striker 34 is arranged in the breech block 1 in a flexible sliding way, wherein its movement is limited by a delimiting pin 35 , which protrudes partially into an elongated cross groove 36 on the firing pin 33 .
  • the cross stop 44 has got an engagement surface 45 for an engagement with a stop surface 46 of a cross trip 47 formed in the cutoff case 7 , as well as a control surface 48 for an engagement with a nose 49 of a single arm release lever 50 arranged in a flexible sliding way on a suspension bolt 51 , which is imbedded in the supporting frame 17, inside which a supporting spring 52 for the single arm release lever 50 is disposed.
  • the single arm release lever 50 has got a grip end 53 , which is intended for an engagement with a catch protrusion 54 formed on a hammer 55 in the region of its mounting on a hammer bolt 56 , on which a striking spring 57 is wound and which has its ends suspended in the supporting frame 17 .
  • the hammer 55 consists of a single arm lever provided with a striking surface 58 for an engagement with a firing element 59 , which is slidingly mounted in the single arm transmission lever 37 and its movement is limited by a limiting pin 60 ( Fig. 2 ), as well as with a guide surface 61 at the free end of the hammer 55 for an engagement with a control surface 62 ( Fig. 4 ) formed on a lower part of a back face 63 of the carrier 2 of the breech block 1 .
  • the breech block 1 is provided at its front face 78 with a seat 79 for the bottom of the cartridge 22 and with a supporting protrusion 80 , which is arranged near to the front face 78 protruding from its upper side and is provided at the back side with a supporting surface 81 for an engagement with the respective stop surface 82 formed at the lower side near to the front wall 83 of the carrier 2 of the breech block 1 .
  • the longitudinally sliding coupling of the carrier 2 with the breech block 1 is realised by means of a pair of slide-ways 84 , 85 arranged opposite each other on the breech block 1 and inserted into the respective guiding slots 86 , 87 on the carrier 2 of the breech block 1 .
  • the hand firearm according to the invention operates as follows:

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Toys (AREA)
  • Earth Drilling (AREA)
EP07721823A 2006-05-25 2007-05-23 Locking mechanism of a hand firearm Not-in-force EP2019959B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ20060341A CZ301336B6 (cs) 2006-05-25 2006-05-25 Uzamykací mechanizmus rucní palné zbrane
PCT/CZ2007/000034 WO2007137524A2 (en) 2006-05-25 2007-05-23 Locking mechanism of a hand firearm

Publications (2)

Publication Number Publication Date
EP2019959A2 EP2019959A2 (en) 2009-02-04
EP2019959B1 true EP2019959B1 (en) 2011-07-20

Family

ID=38713481

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07721823A Not-in-force EP2019959B1 (en) 2006-05-25 2007-05-23 Locking mechanism of a hand firearm

Country Status (5)

Country Link
EP (1) EP2019959B1 (cs)
AT (1) ATE517306T1 (cs)
CA (1) CA2653036C (cs)
CZ (1) CZ301336B6 (cs)
WO (1) WO2007137524A2 (cs)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8117957B2 (en) * 2009-07-24 2012-02-21 Vladimir Loganchuk Breech device for a hand firearm
RU2453787C1 (ru) * 2010-12-23 2012-06-20 Федеральное государственное унитарное предприятие "Центральный научно-исследовательский институт точного машиностроения" Самозарядный пистолет
CZ305334B6 (cs) * 2013-07-12 2015-08-05 Viktor Shamray Mechanizmus natahování kohoutku samonabíjecí pistole
CZ2015782A3 (cs) 2015-11-05 2017-02-15 Viktor Shamrai Samonabíjecí pistole
RU2636186C2 (ru) * 2016-04-18 2017-11-21 Николай Борисович Кретов Запирающий механизм стрелкового оружия (варианты)
US10782082B2 (en) * 2017-10-20 2020-09-22 Sturm, Ruger & Company, Inc. Bolt assembly for blowback type firearms
RU183460U1 (ru) * 2017-11-16 2018-09-24 Николай Борисович Кретов Запирающий механизм автоматического оружия
RU184495U1 (ru) * 2018-05-11 2018-10-29 Николай Борисович Кретов Полусвободный затвор автоматического оружия
RU210538U1 (ru) * 2021-01-27 2022-04-19 Акционерное общество "Научно-производственное объединение "Прибор" имени С.С. Голембиовского" Запирающий механизм стрелкового оружия

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE425163A (cs) * 1936-12-14
BE474385A (cs) * 1946-07-15
FR949973A (fr) * 1947-06-25 1949-09-14 Mécanisme de retard à l'ouverture de culasse d'arme à feu
FR2231939B1 (cs) * 1973-06-01 1975-08-22 France Etat
CZ283180B6 (cs) * 1996-12-18 1998-01-14 Czech Weapons S.R.O. Uzamykací mechanizmus ruční palné nebo velkorážové zbraně
UA63508A (en) * 2003-04-24 2004-01-15 Corp Tasko Mechanism for locking rifle arms

Also Published As

Publication number Publication date
WO2007137524A3 (en) 2008-01-31
EP2019959A2 (en) 2009-02-04
CZ2006341A3 (cs) 2007-12-05
CZ301336B6 (cs) 2010-01-20
CA2653036C (en) 2012-09-04
CA2653036A1 (en) 2007-12-06
WO2007137524A2 (en) 2007-12-06
ATE517306T1 (de) 2011-08-15

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