Automatic rifle

Abstract

The invention relates to an automatic rifle (1) comprising a main body (2) comprising a lower semi- receiver (21), an upper semi-receiver (22), and a barrel (25), extending along an axis (X-X). The lower semi-receiver (21) and the upper semi-receiver (22) are mutually integrally connected by means of a rear pin group (3) and a front pin group (4), wherein the upper semi-receiver (22) is adapted to tilt on the lower semi-receiver (21) at said front pin group (4). The front pin group (4) comprises a pin (40) extending along a pin axis (P-P) and a clearance recovery member (45). The lower semi-receiver (21) comprises two protrusions (211) with respective holes (2110) through which the pin (40) extends and the upper semi-receiver (22) comprises a projection (221) positioned between the two protrusions (211), wherein the projection (221) comprises a passage (2210) through which the pin (40) extends. Said clearance recovery member (45) is elastically yielding in the direction parallel to the pin axis (P-P) and is housed between the projection (221) and a protrusion (211).

Description

AUTOMATIC RIFLEDESCRIPTION

[0001] The present invention relates to an automatic rifle .

[0002] In particular, "automatic rifle" means an automatic rifle or a semi-automatic rifle with selective fire. In the prior art, a plurality of solutions of automatic rifles is known, such as the M4 or the M16, for example .

[0003] In known embodiments, automatic rifles comprise a main body in which specific components, such as the barrel, the stock and / or the magazine, or specific components of the shooting kinematic mechanism, such as the carriage assembly or trigger assembly, are housed or engaged .

[0004] Solutions are known from the prior art in which the main body consists of two different components, a lower semi-receiver (also known as "lower receiver") and an upper semi-receiver (also known as "upper receiver") , mutually joined to each other.

[0005] In order to achieve a correct shooting experience without breakages and / or frequent maintenance, it is critically important that the upper and lower semireceivers are joined as firmly as possible.

[0006] It is also essential that said connection is reversible to allow the simple release of the upper semireceiver i f operations to inspect and clean the barrel are required . Speci fically, embodiments are known, in which the connection is achieved by means of two pin groups , a rear one and a front one , and in which the upper semi-receiver is suitable for tilting with respect to the lower semi-receiver at said front pin group .

[0007] The refore , a typical problem of such automatic ri fle solutions is to have both a firm connection between the upper semi-receiver and the lower semi-receiver, and to have comfortable and easy operations of opening the upper semi-receiver on the lower semi-receiver .

[0008] In the known solutions , greater attention and importance has been paid to the firm connection between upper semi-receiver and lower semi-receiver with respect to the experience of opening and tilting the upper semireceiver on the lower semi-receiver .

[0009] It is the obj ect of the present invention to provide an alternative automatic ri fle solution to the solutions of the prior art , adapted to meet the aforesaid needs . Speci fically, the automatic ri fle solution of the present invention has a firm connection between the upper semi-receiver and the lower semi-receiver while allowingoptimal tilting operations between the two components .

[0010] Such an obj ect is achieved by the automatic ri fle according to claim 1 . The claims dependent thereon require protection for further features and imply further technical advantages .

[0011] In addition, further features and advantages of the invention will become apparent from the following description of preferred embodiments thereof , given by way of a non-limiting indication, with reference to the accompanying drawings , in which :

[0012] - figures la and lb show a perspective view of an automatic ri fle according to the present invention;

[0013] - figure 2 is a view of the automatic ri fle with reference to figures la and lb in an opening / maintenance configuration;

[0014] - figures 3a and 3b are a perspective view with separate parts and an assembled perspective view, respectively, of some components of the automatic ri fle of the present invention, in particular of a front pin group, from a first point of view;

[0015] - figures 4a and 4b are a perspective view with separate parts and an assembled perspective view, respectively, of some components of the automatic ri fle of the present invention, in particular of a front pingroup, from a second point of view;

[0016] - figure 5 is a cross-section view of figures 3b or 4b.

[0017] With reference to the accompanying figures, reference numeral 1 indicates, as a whole, an automatic rifle according to the present invention.

[0018] According to the present invention, the automatic rifle 1 comprises a main body 2.

[0019] Such a main body 2 is grippable or embraceable by the user, e.g., in shooting or targeting operations and houses or supports all the various components adapted to perform the shooting action.

[0020] According to the present invention, the main body 2 comprises a lower semi-receiver 21 and an upper semi-receiver 22. According to the industry nomenclature, the main body 2 is known as "receiver", and the lower semi-receiver 21 is known as "lower semi-receiver" while the upper receiver 22 is known as "upper semi-receiver".

[0021] Said lower semi-receiver 21 and said upper semi-receiver 22 are suitable for mutually integrally engaging so as to form a single component.

[0022] Moreover, the main body 2 comprises a barrel25.

[0023] Said barrel 25 extends along a main axis X-X.

[0024] Said barrel 25 extends along said main axis X-X from the upper semi-receiver 22 .

[0025] The lower semi-receiver 21 preferably comprises the grip and supports the stock of the automatic ri fle 1 .

[0026] According to the present invention, some components of the shooting kinematic mechanism are housed inside the lower semi-receiver 21 and other components are housed inside the upper semi-receiver 22 .

[0027] According to the present invention, said lower semi-receiver 21 and upper semi-receiver 22 are mutually integrally connected by means of a rear pin group 3 and a front pin group 4 .

[0028] The upper semi-receiver 22 is suitable for tilting on the lower semi-receiver 21 at said front pin group 4 . Speci fically, this is made possible after the release of the rear pin group 3 .

[0029] The front pin group 4 comprises a pin 40 extending along a pin axis P-P and a mechanical clearance recovery member 45 . Said upper semi-receiver 22 is suitable for tilting hinged with respect to said pin axis P-P .

[0030] The 1 ower semi-receiver 21 comprises two protrusions 211 with respective holes 2110 through which the pin 40 extends and the upper semi-receiver 22comprises a projection 221 positioned between the two protrusions 211, where the projection 221 comprises a passage 2210 through which the pin 40 extends. In other words, the alignment of the holes 2110 and the passage 2210 allows the positioning of the pin 40.

[0031] According to the present invention, the clearance recovery member 45 is elastically yielding in the direction parallel to the pin axis P-P and is housed between the projection 221 and a protrusion 211.

[0032] According to a preferred embodiment, the clearance recovery member 45 comprises a fastening portion 458 engaged with the lower semi-receiver 21 and a ring-shaped portion 450 which embraces the pin and is positioned between the projection 221 and the protrusion 211.

[0033] Said ring-shaped portion 450 is preferably elastically yielding parallel to the pin axis P-P.

[0034] According to a preferred embodiment, the ringshaped portion 450 is tapered in shape along the pin axis P-P.

[0035] The ring-shaped portion 450 is preferably substantially conical in shape.

[0036] The ring-shaped portion 450 is preferably substantially f rustoconical in shape.

[0037] According to a preferred embodiment, the clearance recovery member 45 is completely made of a material selected from the steel family.

[0038] According to a preferred embodiment, the ringshaped portion 450 comprises a transverse slit adapted to divide the ring-shaped portion 450 into two semi-portions movable with respect to each other so as to make the ring-shaped portion 450 yielding.

[0039] According to a preferred embodiment, the ringshaped portion 450 is made of a material selected from the steel family.

[0040] Preferably, the ring-shaped portion 450 is suitable for performing an axial thrust action parallel to the pin axis P-P which is discharged onto the projection 221 and / or the protrusion 211.

[0041] According to a preferred embodiment, the clearance recovery member 45 comprises a fastening plug 455 engageable with the lower semi-receiver 21 and the fastening portion 458 for mutually engaging them.

[0042] Said fastening plug 455 preferably extends parallel to the pin axis P-P.

[0043] Preferably, the lower semi-receiver 21 thus comprises a transverse passage in which said fastening plug 455 is housed. Preferably, said transverse passagealso crosses the fastening portion 458.

[0044] According to a preferred embodiment, the front pin group 4 further comprises a pin retaining element 41 transversely insertable into the pin axis P-P for axially retaining the pin 40 with the lower semi-receiver 21.

[0045] The pin retaining element 41 preferably embraces the pin 40.

[0046] The pin 40 preferably comprises a groove 400 in which the retaining element 41 is inserted. Said groove 400 is preferably obtained outside the pin 40.

[0047] According to a preferred embodiment, the pin retaining element 41 is a U-shaped element adapted to transversely fit the pin 40.

[0048] According to a preferred embodiment, the pin retaining element 41 is a elastic pin. The pin retaining element 41 is preferably insertable into and snappable onto the pin 40.

[0049] According to a preferred embodiment, the clearance recovery member 45 engages said pin retaining element 41 in order to keep it in place.

[0050] According to a preferred embodiment, the ringshaped portion 450 has a housing space 451 in which the pin retaining element 41 is housed.

[0051] Said housing space 451 is preferably positionedin front of the protrusion 211.

[0052] According to a preferred embodiment, the pin 40 has a pin head which is housed in and rests on a protrusion 211.

[0053] According to a preferred embodiment, the front pin group 4 also comprises a retaining ring 48, e.g., an elastic stop ring, preferably made of a metal material, positioned at the opposite end with respect to the pin head .

[0054] Innovatively, the automatic rifle of the present invention largely achieves the preset purpose.

[0055] Advantageously, the automatic rifle of the present invention is an alternative solution to the known solutions .

[0056] Advantageously, the automatic rifle of the present invention has a front pin group adapted to achieve a firm connection between lower semi-receiver and upper semi-receiver, thus allowing comfortable tilting operations .

[0057] Advantageously, the clearance recovery member is suitable for eliminating any loose situations, e.g., due to differences in size of the components. Advantageously, even when performing the tilting operations, the user perceives strength and thusstructural quality.

[0058] Advantageously, the operations of manufacturing the upper semi-receiver and / or the lower semi-receiver are simplified.

[0059] Advantageously, the clearance recovery member is also suitable for retaining the pin retaining element, increasing the safety of the front pin group.

[0060] It is apparent that, in order to meet contingent needs, those skilled in the art may make changes to the above-described invention, all contained within the scope of protection as defined by the following claims.

Claims

CLAIMS1. An automatic rifle (1) comprising a main body (2) comprising a lower semi-receiver (21) , an upper semireceiver (22) , and a barrel (25) , extending along an axis (X-X) , from the upper semi-receiver (22) ; said lower semi-receiver (21) and said upper semireceiver (22) being mutually integrally connected by means of a rear pin group (3) and a front pin group (4) , wherein the upper semi-receiver (22) is adapted to tilt on the lower semi-receiver (21) at said front pin group (4) ; wherein the front pin group (4) comprises a pin (40) extending along a pin axis (P-P) and a mechanical clearance recovery member (45) ; wherein the lower semi-receiver (21) comprises two protrusions (211) with respective holes (2110) through which the pin (40) extends and the upper semi-receiver (22) comprises a projection (221) positioned between the two protrusions (211) , wherein the projection (221) comprises a passage (2210) through which the pin (40) extends ; wherein the clearance recovery member (45) is elastically yielding in the direction parallel to the pin axis (P-P) and is housed between the projection (221) and aprotrusion (211) .

2. Automatic rifle (1) according to claim 1, wherein the clearance recovery member (45) comprises a fastening portion (458) engaged with the lower semi-receiver (21) and a ring-shaped portion (450) , which embraces the pin and is positioned between the projection (221) and the protrusion (211) .

3. Automatic rifle (1) according to claim 2, wherein the ring-shaped portion (450) is elastically yielding parallel to the pin axis (P-P) .

4. Automatic rifle (1) according to any one of claims 2 and 3, wherein the ring-shaped portion (450) is tapered in shape along the pin axis (P-P) , preferably conical or f rustoconical .

5. Automatic rifle (1) according to any one of claims 2 to 4, wherein the clearance recovery member (45) comprises a fastening plug (455) engageable with the lower semi-receiver (21) and the fastening portion (458) for mutually engaging them.

6. Automatic rifle (1) according to claim 5, wherein the fastening plug (455) extends parallel to the pin axis (P- P) •7. Automatic rifle (1) according to any one of the preceding claims, wherein the front pin group (4) furthercomprises a pin retaining element (41) insertable transversely to the pin axis (P-P) for axially retaining the pin (40) at the lower semi-receiver (21) , wherein the clearance recovery member (45) engages said pin retaining element (41) to keep it in place.

8. Automatic rifle (1) according to claim 7, wherein the pin retaining element (41) is a elastic pin adapted to embrace the pin (40) by insertion into a groove (400) obtained outside the pin (40) .

9. Automatic rifle (1) according to claim 7 or 8 and any one of claims 2 to 4, wherein the ring-shaped portion (450) has a housing space (451) in which the pin retaining element (41) is housed.

10. Automatic rifle (1) according to any one of the preceding claims, wherein the clearance recovery member (45) is a metal material selected from the steel family.

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