WO2001098725A1 - Rifle breech box and associated firearm - Google Patents
Rifle breech box and associated firearm Download PDFInfo
- Publication number
- WO2001098725A1 WO2001098725A1 PCT/IT2001/000323 IT0100323W WO0198725A1 WO 2001098725 A1 WO2001098725 A1 WO 2001098725A1 IT 0100323 W IT0100323 W IT 0100323W WO 0198725 A1 WO0198725 A1 WO 0198725A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- trigger
- firing
- breechblock
- pin
- closing
- Prior art date
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
- F41A3/00—Breech mechanisms, e.g. locks
- F41A3/60—Breech mechanisms for guns having two or more barrels
-
- 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
- F41A3/36—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing
- F41A3/38—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing having rocking locking elements, e.g. pivoting levers or vanes
- F41A3/42—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing having rocking locking elements, e.g. pivoting levers or vanes hand-operated
Definitions
- the present invention relates to rifle breech box and the firearm obtained therefrom.
- two main groups of firearms may be defined: those with a stable closing system and those with an unstable closing system.
- the former such as double-barrel guns for example, are typically characterized in that the surface which has the function of a breechblock keeps the cartridge immobile during the firing action and therefore all the power released during firing of a shot is transmitted to the projectile which is fired; in this type of firearm, ejection of the used case is performed manually.
- the latter group comprises automatic weapons, in which part of the energy released during firing of a shot is used to displace the breechblock so as to eject the case without the need for manual intervention.
- Both types of firearms have various drawbacks associated with their structure.
- double-barrel guns must be opened for the loading and unloading operations, with a consequent loss of time; also, the unexploded cartridges must be removed manually, thus constituting a source of danger; the barrels cannot be replaced and therefore only bullets of a predefined size may be fired.
- the object of the present invention is therefore to overcome these drawbacks.
- the object is achieved by means of a device which allows ejection of the exploded cases to be controlled by means of operation of the trigger itself which controls firing.
- the main advantage as regards firearms with a stable closing system consists in the fact that no manual intervention is required by the person using the firearm: therefore, it is not required to open the firearm for loading and unloading; the unexploded cartridges are ejected automatically; and finally the barrels may be replaced and the size of the cartridges to be fired may be modified.
- FIG. 1 and 2 show a side view of the invention before and after assembly of the main functional parts
- FIG. 3 shows schematically two opposite side views of the invention, relating to the initial operating condition thereof, with some parts removed so that others may be seen more clearly;
- FIG. 4 shows a succession of side views similar to those according to Figures 1 and 2 and corresponding to a complete operating phase of the invention
- FIG. 5 shows a front view of the invention at the start and at the end of its operating phase
- the invention relates to a rifle breech box which, in the solution shown by way of example in the figures, comprises two channels (6) for two vertical movable barrels (7), but which in any case comprises at least one channel (6) corresponding to at least one barrel (7), a pre-firing chamber (3) into which a cartridge is inserted before firing and from which the associated case is ejected after the shot, a breechblock (1) and associated closing means (5) , firing pin (2), a trigger (10), means (8) for constraining the firing pin (2) and the trigger (10) able to ensure that, when the trigger (10) is pressed, the firing pin (2) is released so as to produce the shot, and movement transmission means (9) , which are located between the trigger (10) and the means (5) for closing the breechblock (1) and are able to ensure that, again when the trigger (10) is pressed, the closing means (5) no longer engage the breechblock (1) , leaving it free to return into the rest position with consequent ejection of the case.
- disengagement of the breechblock (1) from its closing means (5) may be obtained both by prolonging the pressure exerted on the trigger (10) at the moment of firing and by means of a second pressing action separate from that which produced firing.
- the means (8) for constraining the firing pin (2) and the trigger (10) comprise, according to the known art, a connecting lever (8a) and a tooth (8b) : in the rest position, the tooth (8b) keeps the firing pin (2) locked, but when the trigger (10) is pressed, the connecting lever (8a) causes rotation of the tooth (8b) which in this way disengages the firing pin (2) , causing firing.
- the means (5) for closing the breechblock (1) comprise a shutter (4) and a rotating pin (16) which are joined together so that, upon rotation of the pin (16) about itself, the shutter (4) disengages the breechblock (1) .
- the movement transmission means (9) comprise a movable catch (13) which is constrained to the trigger (10) by means of a cam (12) so as to be raised and lowered with respect to its rest position when the trigger (10) is moved forwards and backwards, respectively.
- the catch (13) interferes with the tappet (17), then drawing it downwards when the trigger (10) is pressed a second time.
- Figure 3b shows the "pre-firing chamber side” at the start of the firing procedure: after insertion of a cartridge into the pre-firing chamber (3) and manually pushing the breechblock (1) forwards, the firearm is ready for shooting.
- Figure 3a which shows the "closing side”
- the closing system has already been locked, again manually, by raising the shutter (4) and that the catch (13) is located in the rest position.
- the breechblock should be released following a prolonged pressure on the trigger (10) at the same time as firing, it will be sufficient to increase the length of the catch (13) so that, already in the rest position, it is located above the tappet (17) , but so that lowering thereof following pressing of the trigger (10) which produces firing is insufficient to draw the tappet (17) downwards.
- the movement transmission means (9) may comprise one or more rotating elements (14;24) provided with lugs (14a;24a) which are constrained to the trigger (10) so as to interfere, via one of its lugs (14a;24a), with the tappet (17) and lower it when the trigger (10) is pressed.
- the dimensions of the rotating element (14; 24) and the form of the lugs (14a; 24a) determine whether ejection of the case occurs by pressing the trigger a second time after firing or by prolonging the first pressing action, corresponding to detonation.
- the firearm which is obtained using a breech box (11) realised in accordance with that described above, may also be semi-automatic, in the sense that, owing to the autonomous operation of the barrels (7), two barrels (7) may also be provided on the same firearm, one operating repetitively and the other in the manner described above.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60104850T DE60104850T2 (en) | 2000-06-20 | 2001-06-18 | GUN CLASP AND FIREARM WITH SUCH A CLOSURE |
AU2001270990A AU2001270990A1 (en) | 2000-06-20 | 2001-06-18 | Rifle breech box and associated firearm |
EP01949880A EP1292801B1 (en) | 2000-06-20 | 2001-06-18 | Rifle breech box and associated firearm |
AT01949880T ATE273499T1 (en) | 2000-06-20 | 2001-06-18 | RIFLE BOLT AND FIREARM HAVING SUCH A RIFLE BOLT |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2000RN000029A ITRN20000029A1 (en) | 2000-06-20 | 2000-06-20 | BOX OF RIFLE BREECH AND ITS FIREARM. |
ITRN2000A000029 | 2000-06-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001098725A1 true WO2001098725A1 (en) | 2001-12-27 |
Family
ID=11456611
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IT2001/000323 WO2001098725A1 (en) | 2000-06-20 | 2001-06-18 | Rifle breech box and associated firearm |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1292801B1 (en) |
AT (1) | ATE273499T1 (en) |
AU (1) | AU2001270990A1 (en) |
DE (1) | DE60104850T2 (en) |
IT (1) | ITRN20000029A1 (en) |
WO (1) | WO2001098725A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE314139C (en) * | ||||
US1355252A (en) * | 1919-06-18 | 1920-10-12 | Lloyd V Olson | Repeating firearm |
FR1106685A (en) * | 1954-04-08 | 1955-12-21 | Somep | Advanced submachine gun |
-
2000
- 2000-06-20 IT IT2000RN000029A patent/ITRN20000029A1/en unknown
-
2001
- 2001-06-18 AU AU2001270990A patent/AU2001270990A1/en not_active Abandoned
- 2001-06-18 DE DE60104850T patent/DE60104850T2/en not_active Expired - Fee Related
- 2001-06-18 WO PCT/IT2001/000323 patent/WO2001098725A1/en active IP Right Grant
- 2001-06-18 EP EP01949880A patent/EP1292801B1/en not_active Expired - Lifetime
- 2001-06-18 AT AT01949880T patent/ATE273499T1/en not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE314139C (en) * | ||||
US1355252A (en) * | 1919-06-18 | 1920-10-12 | Lloyd V Olson | Repeating firearm |
FR1106685A (en) * | 1954-04-08 | 1955-12-21 | Somep | Advanced submachine gun |
Also Published As
Publication number | Publication date |
---|---|
ITRN20000029A1 (en) | 2000-09-20 |
EP1292801A1 (en) | 2003-03-19 |
DE60104850T2 (en) | 2005-09-29 |
DE60104850D1 (en) | 2004-09-16 |
EP1292801B1 (en) | 2004-08-11 |
ATE273499T1 (en) | 2004-08-15 |
AU2001270990A1 (en) | 2002-01-02 |
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