WO2015186017A1

WO2015186017A1 - Firearms with automatic safety lock

Info

Publication number: WO2015186017A1
Application number: PCT/IB2015/053857
Authority: WO
Inventors: Alberto SALZANI
Original assignee: Salzani Alberto
Priority date: 2014-06-04
Filing date: 2015-05-25
Publication date: 2015-12-10

Abstract

A firearm (1 ) for hunting, comprising a frame (T) supporting a handle, for at least one barrel and for a percussion firing mechanism (M), said firing mechanism (M) comprising trigger means (G) and connection means (7) connected to said trigger means (G) to cause the rotation of a hammer (12) towards a percussion element (15); the said connection means (7) further comprise a rod (16) mounted on said trigger means (G), said rod (16) supporting a block element (18) adapted to interact with one end (14) of said hammer (12) to block the accidental rotation of said hammer (12) itself.

Description

FIREARMS WITH AUTOMATIC SAFETY LOCK

The present invention relates to a firearm for hunting provided with an automatic safety lock.

In particular, the invention relates to a smoothbore shotgun or the like, to which the following description will make explicit reference without thereby losing generality. In general, in the hunting practice it is universally known the use of smoothbore shotguns in which there are normally safety systems adapted to lock the triggers to avoid accidental start of the shot in the barrel.

A safety system currently known consists substantially of a slider to be inserted manually by the user, present externally on the butt of the shotgun near the opening key and connected to an internal transverse pin a free end of which is adapted to enter into contact and to engage an edge of the internal mechanism supporting the trigger to lock the movement of the trigger itself.

Such a system is not always effective, since in case of accidental impact to the shotgun it is not able to avoid the unexpected movement of the trigger, and then the resulting departure of the shot such as to cause obvious serious consequences.

Furthermore, this system has the drawback of having to be always in advance voluntarily activated by the hunter user, who must necessarily remember to actuate the sliding of the slider to activate the systems themselves.

The object of the present invention is to eliminate the very substantial problem of the prior art as set forth above.

In particular, the purpose of the present invention is to provide a firearm for hunting provided with safety lock perfectly effective even in case of accidental impact to the firearm itself.

A further object of the present invention is to provide a firearm provided with a safety lock, which is always permanently and automatically activated.

The structural and functional characteristics of the present invention and its advantages over the known art will be clearer and more evident from the claims below, and in particular from an examination of the description that follows, referring to the attached drawings, which show the schematic representations of a preferred but non-limiting embodiment of a firearm for hunting, in which:

- Figure 1 is a schematic side view of a firearm for hunting according to the invention, illustrated in a first operating position and with parts removed for clarity;

- Figure 2 is a schematic side view of the firearm of Figure 1 , shown in a second operating position; and

- Figure 3 is a schematic side view of the firearm of Figure 1 , shown in a third operating position.

With reference to the attached figures, it is generally shown a firearm for hunting, particularly a smoothbore shotgun 1 .

The shotgun 1 comprises at least one barrel (known and not illustrated) fixed to a frame T supporting a percussion firing mechanism M, in turn supporting, on the opposite side of the barrel, a butt with a related handle (also known and not illustrated).

The above-mentioned mechanism M comprises a trigger assembly G, which is formed by two triggers 2 and 2' (also connected together in a single trigger via known and not illustrated selector means), is mounted pivoted on the frame T, protected by a trigger guard 3, and provided with an end portion 4, disposed inside the frame T, equipped with a first tooth 5 and a second tooth 6 protruding from the end 4 itself.

The mechanism M further comprises a lever 7 substantially horizontally disposed and centrally constrained to a fulcrum pin 8, and having a free end 9 adapted, in use, to come into contact with the tooth 6 of the trigger assembly G, and an opposite end 10 provided with a recess 10a and connected to spring resilient means 10b . The recess 10a of the end 10 is placed in engagement with a respective recess 1 1 a of one end 1 1 pivoted to a hammer 12, which is also connected to contrast spring means 13.

The hammer 12, according to the known functionality, as a result of pressure on one of the triggers 2,2' of the assembly G, is adapted to free its coupling with the end 10 of the lever 7 and to rotate around its own fulcrum in such a way that a portion 14a of the free end 14, free from the hammer 12 itself, impacts the percussion pin 15 against the cartridge C, thus making the shot.

As shown in Figure 1 , the mechanism M further comprises a rod or strut 16, which has one end 16a provided with a slot 16b inserted in a pin 17 mounted on the assembly G between said teeth 5 and 6, and an opposite end 16c supporting a pivoted block element 18 or nail having a substantially trapezoidal shape with an edge or vertex V facing substantially towards the assembly G.

The element 18 is in turn pivoted to the frame T in a pin 19, to rotate about the pin 19 itself under the thrust of intervening spring resilient means 20 and to cooperate by its own vertex V with a recessed portion 21 of the said end 14 of the hammer 12, so that the vertex V itself is maintained constantly in an engaged position against the same portion 21 .

Therefore, in this way, the hammer 12 is always maintained permanently and automatically locked in the safety position by the block element 18 or nail, thus eliminating any possibility of involuntary rotational movement of the hammer 12 towards the percussion pin 15 even in the event of a collision or accidental falling of the shotgun 1 .

The release of the hammer 12 from the interlocking with the element 19 or nail therefore takes place solely and exclusively as a result of pressure on one of the triggers 2,2' of the shotgun 1 by the user/hunter, as can be observed from the sequential operating positions illustrated in Figures 2 and 3.

It is to be noted that the levers and fulcrum/rotation points of the various components are designed in such a way that, by exploiting the space of rotation of the trigger 22' needed at the junction of the hammer 12, the strut 16 causes the rotation of the element 18 or nail needed to get out from the trajectory of the hammer 12 little earlier than its release.

It is to be stressed that also in the case of the occurrence of the disengagement of the hammer 12 without the consent of the triggers 2,2', the safety element 18 or nail, not being set in rotation, remains in the rest position and then intersects the normal trajectory of the hammer 12 itself: the hammer 12 is thus locked and the shotgun automatically enters the safety lock position.

In that case, to restore the system, the shotgun 1 must then be opened and consequently the hammer 12 must be reset.

As illustrated in the attached figures from 1 to 3, as an additional safety means, the shotgun 1 is also preferably, but without limitation, provided with the traditional manually operated slider 22 connected to a transverse pin 23 inside which one end 23a is adapted to make a free contact with and to engage the tooth 5 to stop the further movement of the hammer 12.

Thanks to the presence of the slot 16b, the above-mentioned traditional system with slider 22 and pin 23 in fact does not interfere with the operation of the strut 16, allowing always a perfect and effective setting of the hammer 12.

Claims

1. Firearm (1 ) for hunting, comprising a frame (T) supporting a handle, for at least one barrel and for a percussion firing mechanism (M), said firing mechanism (M) comprising trigger means (G,2,2') and connection means (7) connected to said trigger means (G) to cause the rotation of a hammer (1 2) towards a percussion element (15) ; characterized in that the said connection means (7) further comprise a rod (16) mounted on said trigger means (G,2,2'), said rod (1 6) supporting a pivoted block element (1 8) adapted to interact with one end (14) of said hammer (12) to block the accidental rotation of said hammer (12) itself.

2. Firearm according to claim 1 , characterized in that said block element (18) is also mounted in a pivot manner to said frame (T) with intervening resilient means (20), and is provided with an edge (V) adapted to cooperate interlocking with a recessed portion (21 ) of one end (14) of said hammer (12).

3. Firearm according to claim 1 or 2, characterized in that the said rod (16) has one end (16a) provided with a slot (16b) inserted in a pin (1 7) mounted on said trigger means (G,2,2') and an opposite end (16c) supporting in a pivot manner said block element (18).

4. Firearm according to one or more of claims 1 to 3, characterized in that it is defined by a smoothbore shotgun (1 ).