EP2385335A1 - Fusil à recul avec module de détente amélioré - Google Patents

Fusil à recul avec module de détente amélioré Download PDF

Info

Publication number
EP2385335A1
EP2385335A1 EP11156668A EP11156668A EP2385335A1 EP 2385335 A1 EP2385335 A1 EP 2385335A1 EP 11156668 A EP11156668 A EP 11156668A EP 11156668 A EP11156668 A EP 11156668A EP 2385335 A1 EP2385335 A1 EP 2385335A1
Authority
EP
European Patent Office
Prior art keywords
cartridge
elevator
rifle
slide
stop lever
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.)
Withdrawn
Application number
EP11156668A
Other languages
German (de)
English (en)
Inventor
Riccardo Moraldi
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.)
Cd Europe Srl
Original Assignee
Cd Europe Srl
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 Cd Europe Srl filed Critical Cd Europe Srl
Publication of EP2385335A1 publication Critical patent/EP2385335A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/01—Feeding of unbelted ammunition
    • F41A9/06—Feeding of unbelted ammunition using cyclically moving conveyors, i.e. conveyors having ammunition pusher or carrier elements which are emptied or disengaged from the ammunition during the return stroke
    • F41A9/09—Movable ammunition carriers or loading trays, e.g. for feeding from magazines
    • F41A9/10—Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging
    • F41A9/13—Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a vertical plane
    • F41A9/16—Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a vertical plane which is parallel to the barrel axis
    • F41A9/17—Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a vertical plane which is parallel to the barrel axis mounted within a smallarm
    • F41A9/18—Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a vertical plane which is parallel to the barrel axis mounted within a smallarm feeding from a tubular magazine under the barrel

Definitions

  • the present invention relates to an inertia rifle fitted with an improved trigger group.
  • Such rifles functioning by means of inertia are quite simple as regards construction but do not always ensure precise, jam-free functioning.
  • the use of cartridges having for example of relatively small calibres and therefore masses may cause the weapon to jam: in other words the inertial mass of the cartridge may not be sufficient to activate the inertial arming mechanism of the hammer and loading of a new cartridge connected with the backward stroke of the slide.
  • Such rifles are therefore often constrained to use cartridges of a relatively high calibre.
  • gas recovery rifles in which part of the gas produced by firing is directly used to drive mechanisms, comprising levers and pistons, which cause the backward stroke of the slide so as to arm the hammer and load a new cartridge in the cartridge chamber.
  • Such mechanisms can also function with smaller calibres having smaller firing forces: in fact the thrust exerted by the gas is amplified by the mechanisms connected to the recovery of gas and acting on the slide.
  • the purpose of the present invention is to make a rifle which resolves the drawbacks mentioned with reference to the prior art.
  • figure 1 shows a perspective view of a rifle according to one embodiment of the present invention
  • FIGS. 1a and 1b show enlarged details of figure 1 ;
  • figure 2 shows a perspective view of the rifle in figure 1 , from the side of the arrow II in figure 1 ;
  • figure 3 shows a perspective view of the rifle in figure 1 , in a condition of movement of the trigger group
  • FIGS. 3a and 3b show enlarged details of figure 3 ;
  • figure 4 shows a perspective view of the rifle in figure 1 , from the side of the arrow IV in figure 3 ;
  • FIGS. 4a and 4b show enlarged details of figure 4 ;
  • FIGS 5-7 show perspective views of the rifle in figure 1 , in subsequent phases of firing a cartridge
  • FIG. 6a and 6b show enlarged details of figure 6 .
  • reference numeral 4 globally denotes a rifle comprising a slide group 8 and a trigger group 12.
  • the slide group 8 comprises a slide 16 moving axially in a longitudinal direction X-X, parallel to a firing direction of the rifle 4.
  • the slide 16 has a backward stroke in relation to a closed position, in which the slide 16 closes and delimits rearwards a cartridge chamber 20 able to house a first cartridge 24 for firing.
  • the slide 16 also has a forward stroke wherein it returns to the closed position of the cartridge chamber 20.
  • the slide 16 is subject to the action of a spring which pushes it towards the closed position; such spring opposes the recoil effect impressed on the slide 16 by the first cartridge 24, as described further below.
  • the slide 16 directly faces a base 28 of the first cartridge 24 so as to be subject to the direct recoil effect of the cartridge following firing of the same, to perform the backward stroke.
  • the rifle is of the inertial type wherein the inertia of the bullet fired is used directly on the slide to impose the backward movement and subsequent loading of the weapon, as described further below.
  • the slide 16 comprises a front portion 29 which interfaces directly with the cartridge to be fired and in particular which comes into contact with the base 28 of the first cartridge 24. Said front portion 29 thus forms a wall or end of the cartridge chamber 20.
  • the slide 16 comprises, in addition, a rear portion 30, opposite the front portion 29 and suitable to interact with the trigger mechanism and in particular with the hammer of the rifle, as further described below.
  • the slide 16 comprises a firing pin (not shown) inside it, for example of the known type which, subjected to the action of the hammer, strikes the base 28 of the first cartridge 24 generating the explosion of the blast of the latter.
  • the rifle 4 further comprises the trigger group 12 comprising a trigger 32 and means of activating the firing mechanism of the rifle 4, listed below.
  • the rifle 4 further comprises a cartridge magazine (not shown) containing at least one second cartridge 36 to load in the cartridge chamber 20 after expelling the first cartridge 24.
  • the cartridge magazine comprises a push spring 40 which pre-loads the second cartridge 36 longitudinally, said second cartridge 36 being housed inside the magazine substantially parallel to the first cartridge 24.
  • the trigger group 12 comprises a stop lever 48 and an elevator 52 suitable to interface with said second cartridge 36 so as to block the second cartridge 36 at the insert of the magazine while the first cartridge 24 occupies the cartridge chamber 20 and so as to push the second cartridge 36 into the cartridge chamber 20 after the expulsion of the first cartridge 24.
  • the stop lever 48 is joined to the elevator 52 so as to receive and block the second cartridge 36 on an insert of said cartridge magazine, and the second cartridge 36 is elastically pushed against a locking end 56 of the stop lever 48 in a direction substantially parallel to said longitudinal direction X-X.
  • Such thrust is exerted by means of the push spring 40 positioned inside the magazine ( figures 1-2 ).
  • the locking end 56 of the stop lever 48 comprises a claw 58 suitable to block on a perimetral rim of the base 28 of the first cartridge 24 ( figure 1b ).
  • the stop lever 48 comprises the locking end 56 which abuts directly against the base of the second cartridge 36 and an interface end 60, opposite the locking end 56, at which it interfaces with the elevator 52.
  • the stop lever 48 is fixed to the body of the rifle by means of a pin 62, positioned between said stop 56 and interface 60 ends.
  • the stop lever 48 is moreover influenced by elastic means 64 in rotation in relation to the pin 62.
  • the elastic means 64 are positioned on the opposite side to the locking end 56, in relation to the pin 62; this way the elastic means 64 tend to rotate the stop lever 48 so as to release the locking end 56 from the base 28 of the second cartridge 36 to permit loading of the second cartridge 36 on the elevator 52.
  • the elastic action on the stop lever 48 is contrasted by the elevator 52, on one side 68 of the latter.
  • the interface end 60 of the stop lever 48 stops against a corresponding side 68 of the elevator 52, in a transversal blocking direction Y-Y ( figure 1a ).
  • the stop lever 48 is elastically pre-sprung against the side 68 of the elevator 52, in said transversal direction Y-Y, by means of the elastic means 64.
  • Transversal direction is taken to mean a direction perpendicular to the longitudinal direction X-X.
  • the elevator 52 is elastically pressed away from the stop lever 48 by a push spring 72 and is blocked in position against the stop lever 48 by a catch 76 ( figure 2b ).
  • the elevator 52 is hinged to the body by a transversal pin 80 so as to be swivel mounted on a rotation axis parallel to said transversal direction Y-Y.
  • the push spring 72 pushes the elevator 52 to rotate around the transversal pin 80 away from the body, that is downwards.
  • the elevator 52 is hinged in relation to the transversal pin 80 so that following rotation of the elevator 52, the side of the elevator 52 is released from the interface end 60 of the stop lever 48 ( figures 3a, 4a ).
  • Such movement of the elevator 52 is prevented by the catch 76 situated, according to one embodiment, on the side opposite the associable stop lever 48.
  • the elevator 52 comprises a loading end 84 directly facing the second cartridge 36 and shaped so as to facilitate loading of the cartridge; for example said loading end 84 comprises a downwardly inclined ramp so as to facilitate loading of the second cartridge 36.
  • the elevator 52 is joined in rotation with a tooth 88 suitable to interface with the slide during its backward and forward stroke.
  • the elevator 52 is joined in rotation to the tooth 88 which interferes with the rear portion 30 of the slide 16 so that, in the backward stroke of the slide 16, the tooth 88 is pushed and the elevator is rotated, in a transversal direction towards the cartridge chamber 20, so as to insert the second cartridge 36 next to the cartridge chamber 20 ( figure 6 ).
  • the tooth in turn comprises a protuberance 92 able to engage in a corresponding recess 94 made on the underside 96 of the slide 16 ( figure 6b ). So that during the forward stroke the protuberance 92 of the tooth 88 engages in the recess 94 and drags the tooth 88 with it causing the elevator 52 to rotate towards the cartridge chamber 20. This way the base 28 of the second cartridge 32 is moved to the forward stroke of the slide 16 so as to interfere at least partially with the front portion 29 of it. Such interference enables the slide 16 to push the second cartridge 36 fully inside the cartridge chamber 20.
  • the trigger group 12 comprises the trigger 32 operatively connected to a hammer 100 which acts by striking the firing pin, in the known manner. The movement of the trigger 32 releases the hammer 100, previously cocked, so as to permit its lowering onto the firing pin.
  • the trigger 32 is operatively connected to the elevator 52 so that, during the stroke of the trigger 32 to perform firing, the trigger 32 releases the catch 76 of the elevator 52 and consequently the stop lever 48, so as to allow loading of the second cartridge 36 on the elevator 52 as described above.
  • the catch 76 of the elevator 52 is positioned on the opposite side to the associable stop lever 48 and is operatively connected to the movement of the hammer 100 of the rifle 4, so as to be released following lowering of the hammer 100.
  • the hammer 100 is for example pushed by a spring 104 which lowers it against the rear portion 30 of the slide 16; the hammer 100 is mechanically connected to a first lever 108 hinged to a transmission 112 in turn connected to the catch 76.
  • the movement of the first lever 108 permits the rotation of the catch 76 which releases the elevator 52 as well as the stop lever 48 allowing loading of the second cartridge 36 on the elevator, as already described.
  • the rifle according to the present invention makes it possible to overcome the drawbacks presented in the rifles of the prior art.
  • the rifle is relatively simple and economical to make.
  • the trigger mechanism is particularly efficient and may be efficaciously activated by the slide even using relatively small calibre cartridges, therefore having reduced inertia.
  • the integration of the trigger group and the slide group according to the resent invention makes the semi-automatic functioning of the rifle possible without incurring in jamming even when using small calibre cartridges.
  • the rifle according to the present invention is reliable and substantially free of jamming.
  • the rifle according to the present invention has a reduced mass in that it does not envisage complex gas recovery activating mechanisms.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Telescopes (AREA)
EP11156668A 2010-05-03 2011-03-02 Fusil à recul avec module de détente amélioré Withdrawn EP2385335A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITBS2010A000091A IT1399722B1 (it) 2010-05-03 2010-05-03 Fucile a funzionamento inerziale con gruppo di scatto perfezionato

Publications (1)

Publication Number Publication Date
EP2385335A1 true EP2385335A1 (fr) 2011-11-09

Family

ID=43304923

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11156668A Withdrawn EP2385335A1 (fr) 2010-05-03 2011-03-02 Fusil à recul avec module de détente amélioré

Country Status (2)

Country Link
EP (1) EP2385335A1 (fr)
IT (1) IT1399722B1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1852411A (en) * 1931-06-24 1932-04-05 Harry H O Connell Automatic shotgun
EP0281793A2 (fr) * 1987-03-12 1988-09-14 BENELLI ARMI S.p.A. Dispositif d'alimentation en cartouches pour armes à feu semi-automatiques ou du type à pompe à canon lisse
EP1345000A1 (fr) * 2002-03-15 2003-09-17 Oto Melara S.p.A. Mécanisme d'alimentation et de chargement de munitions dans un fusil sémi-automatique

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1852411A (en) * 1931-06-24 1932-04-05 Harry H O Connell Automatic shotgun
EP0281793A2 (fr) * 1987-03-12 1988-09-14 BENELLI ARMI S.p.A. Dispositif d'alimentation en cartouches pour armes à feu semi-automatiques ou du type à pompe à canon lisse
EP1345000A1 (fr) * 2002-03-15 2003-09-17 Oto Melara S.p.A. Mécanisme d'alimentation et de chargement de munitions dans un fusil sémi-automatique

Also Published As

Publication number Publication date
ITBS20100091A1 (it) 2011-11-04
IT1399722B1 (it) 2013-05-03

Similar Documents

Publication Publication Date Title
US7398723B1 (en) Trigger forward displacement system and method
US7707923B2 (en) Short recoil semi-automatic shotgun
US9777980B2 (en) Compact semi-automatic firearm
US20070051236A1 (en) Trigger mechanism for firearms with self-loading actions
KR20110097769A (ko) 반동 및 총구 클라임의 제어를 위해 새로운 메커니즘을 구비한 지연 블로백 총기
WO2015157753A1 (fr) Système de commande de tir pour armes à feu
US8176836B2 (en) Double action short reset trigger system
US10077961B2 (en) Striker system for firearms
CA3071163A1 (fr) Arme a feu a munition telescopique tubee avec reduction de la tolerance
US4312263A (en) Pistol
US20120204712A1 (en) Dual action shotgun
US10584932B2 (en) Trigger-locking apparatus, system, and method for semiautomatic firearms
US11215417B2 (en) Safety mechanism for hammer-operated firearms
US4897949A (en) Firearms
KR20040019279A (ko) 방아쇠 장치
US6460281B1 (en) Single trigger sequential firing mechanism for a double barrel firearm
FI58979B (fi) Radialslaganordning foer skjutvapen i vilka anvaendes hylsfria projektiler med periferiknall
GB2109515A (en) A hammer mechanism for an automatic or semi-automatic gun
EP1106955B1 (fr) Arme à feu avec percuteur inertial
US7578227B1 (en) Fire control mechanism for selectable fire
EP2385335A1 (fr) Fusil à recul avec module de détente amélioré
US4693169A (en) Control device for rapid firing particularly automatic weapons
KR100389182B1 (ko) 완전자동식 자동 장전 무기
EP0555617B1 (fr) Dispositif de déclenchement pour armes à feu semi-automatiques et automatiques
US20020133997A1 (en) Cam operated, single shot, falling block firing mechanism for a rifle

Legal Events

Date Code Title Description
AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20120510