RU205037U1 - MOBILE WEAPONS - Google Patents

Abstract

The utility model relates to firearms, namely, self-loading pistols with a movable descending barrel. The claimed device contains a barrel 1 with a chamber 2 and a projection 3 on the breech section of the barrel. The protrusion 3 has a bevel 4 facing the chamber 2 of the barrel 1. A cutout 6 is made in the front upper part of the bolt 5 to accommodate the protrusion 3. The intersection of the front surface 7 of the bolt 5 and the lower surface 8 of the cutout 6 on the bolt 5 forms a rib 9. In the process the movement of the shutter 5 forward, the rib 9 of the shutter interacts with the bevel 4 of the projection 3 on the breech cut of the barrel 1 and forcibly lifts the barrel 1 upward, while locking the barrel.

Description

The utility model relates to firearms, namely, self-loading pistols with a movable lowering barrel.

Known self-loading pistol company Sauer SIG (magazine "Kalashnikov", No. 1/2008, p. 49), the automation of which uses the energy of the recoil of the barrel with its short stroke and kinematic locking according to the Browning scheme. In the position before the shot, the combat stop, made on the upper side of the barrel, goes into the corresponding groove of the bolt and thereby rigidly connects the barrel and the bolt to each other. After the shot, the barrel with the bolt is rolled back. The barrel remains engaged with the bolt until, during rollback, the shaped groove contacts a rigid element made on a fixed frame (instead of a shaped groove and a rigid element, an articulated joint - an earring can be used). Under the influence of the shaped groove, the barrel decreases and the bearing surfaces of the bolt lose their contact with the barrel.

Known Russian 9-mm pistol "VIKING" (https://simon-chorni.livejoumal.com/120203.html) with a movable barrel. Locking and unlocking the bore of this pistol, taken as a prototype, occurs according to the principle of the Browning system: by tilting the barrel in a vertical plane. The movable pistol barrel has a protrusion on the breech, and the bolt has a reciprocal cut to accommodate a protrusion in it on the breech of the barrel.

However, the known devices do not have sufficient locking reliability, since when fired, the barrel and bolt lugs can break off due to insufficient locking value. This is due to the fact that the interception of surfaces is carried out by the action of the bolt only on the breech section of the barrel and the design of the known devices does not provide for forced

the impact of the bolt on the barrel in the direction of locking the parts. Insufficient locking of the barrel with the bolt leads to deformation of the working surfaces of the combat stops from the effects of forces during the shot, as well as to the failure of the weapon and breakdowns of parts.

The task of the utility model is to improve the reliability of the weapon.

The problem is solved by the fact that in a firearm containing a movable barrel with a chamber and a projection on the breech, and a bolt with a counter cutout, the protrusion on the breech of the barrel is equipped with a bevel facing the chamber and having the ability to interact with the rib formed by the intersection of the front surface of the bolt with the bottom surface of the shutter cutout.

The declared utility model has a simple and reliable design that provides a forced action of the bolt on the barrel towards the locking of the parts. The design of the claimed utility model provides the required amount of barrel locking with the bolt, which increases the reliability of the weapon, since it protects the supporting surfaces of the combat stops from deformation, and the parts of the weapon from breakage.

The device is illustrated by a drawing, which shows:

in fig. 1 - the position of the device parts when the barrel is in the lowered position;

in fig. 2 - the position of the device parts when the bolt is rolling and the interaction of its ribs with the bevel on the protrusion of the barrel;

in fig. 3 - the position of the device parts when the barrel is completely locked with the bolt.

The claimed device contains a barrel 1 (Fig. 1) with a chamber 2 and a protrusion 3 on the breech cut of the barrel. The protrusion 3 has a bevel 4 facing the chamber 2 of the barrel 1. A cutout 6 is made in the front upper part of the bolt 5 to accommodate the protrusion 3. The intersection of the front surface 7 of the bolt 5 and the lower surface 8 of the cutout 6 on the bolt 5 forms a rib 9. The vertical surface 10 of the projection 3 on the breech cut of the barrel has the ability to interact with the vertical surface 11 of the cutout 6 on the bolt 5. In addition, the bolt 5 has a combat stop 12, and the barrel 1 has a combat stop 13. The surface 14 of the shutter 5 has the ability to interact with the surface 15 of the barrel 1 The frame 16 of the pistol has a rigid element 17, located in the shaped groove 18 of the barrel 1.

The claimed device operates as follows. During the movement of the bolt 5 forward (when rolling) the rib 9 (Fig. 2) of the bolt interacts with the bevel 4 of the projection 3 on the breech cut of the barrel 1 and forcibly raises the barrel 1 up. In this case, the bolt 5 locks the barrel 1 to the required value A, ensuring the strength of the latch 12 of the bolt 5 and the latch 13 of the barrel 1 from the forces arising from the shot. With further movement of the bolt 5 forward, the position of the barrel changes (rises) and the rib 9 on the bolt 5 ceases to contact with the bevel 4 of the projection 3 on the breech section of the barrel 1 (Fig. 3). Full locking occurs due to the contact of the upper profile of the shaped groove 18 of the barrel 1 with a rigid element 17 located on the frame 16 when the vertical surface 10 of the projection 3 on the breech cut of the barrel 1 interacts with the vertical surface 11 of the cutout 6 on the bolt 5. When the barrel 1 is completely locked with the surface 15 is limited to the surface 14 of the bolt 5, which makes it possible to ensure the reliability, strength and safety of locking the barrel with the bolt.

After the shot, the required gap B is selected (Fig. 3) between the latch 12 of the bolt 5 and the lug 13 of the barrel 1, and the gap between the bevel 4 of the projection 3 and the rib 9 of the bolt 5 increases. When the lower profile of the shaped groove 18 of the barrel 1 contacts the rigid element 17 of the frame 16, the barrel 1 is lowered down until the latch 12 of the bolt 5 and the latch 13 of the barrel 1 are completely disengaged and the bolt is released. With this position of the parts, the shutter 5 has the ability to roll freely to the extreme rear position and then roll forward.

Claims (1)

A firearm containing a movable barrel with a chamber and a protrusion on the breech, and a bolt with a counter cut, characterized in that the protrusion on the breech of the barrel is provided with a bevel facing the chamber and having the ability to interact with the rib formed by the intersection of the front surface of the bolt with the lower surface shutter cutout.

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