CZ33653U1 - Practice cartridge to protect the firing pin during training without ammunition - Google Patents

Description

Technical field

The technical solution relates to a practice cartridge inserted into the firing chamber of a firearm (pistol, revolver, rifle or shotgun), which has the task of protecting the drum of the firearm during the firing practice and at the same time increasing the safety of such practice.

BACKGROUND OF THE INVENTION

Lowering the weapon's percussion mechanism without the presence of sharp ammunition is a frequently used form of shooting skill training and leads to increased assurance of the shooter and accuracy when shooting at the shooting range itself.

Nowadays, when training the firing mechanism of a weapon, it either takes place without cartridges on an empty chamber, or training cartridges are used with a fixed or sprung spot for the match, precisely copying the shape of the cartridge sharp, but without active composition, so there is no shot.

In the first case, there is a different movement of the percussion device than it is primarily designed, so instead of, for example, the firing pin or firing pin stopping against a relatively soft charge, it extends more and stops moving by suddenly impacting another part, often on the inside part of the forehead. This leads to higher wear of the parts, which do not have to be designed for this and to the destruction of the main part of the weapon, or to the destruction of a part of the percussion device if it is cloudy in an unsatisfactory manner.

In the case of the second, when the conclusion is retracted, the training cartridge is ejected from the gun chamber, as it accurately copies the shape of the sharp cartridge, including the groove for the gun puller.

In both cases, there is no limit to the risk of accidental shot due to the inattention of the shooter during the training, when he gets into the practice rounds to charge a sharp charge or omits this sharp charge in the magazine or chamber of the weapon.

The essence of the technical solution

The above-mentioned disadvantages of the current solutions are eliminated by a training hub made of plastic or metal with a basic sharp charge shape, which is partially shaped in the part originally with the extractor recess so that it is not caught by the weapon extractor and is provided with a flexible band - a ring in the groove on the training cartridge or other resilient material (all around or at selected locations) that prevents the cartridge from spontaneously ejecting from the cartridge chamber. The training hub has a resilient or sprung component at the match site that allows the percussion device to be repeatedly triggered and impacted into a material simulating a sharp charge match with its mechanical properties. This solution can be adapted to the required caliber weapons and is generally applicable to all firearms using center-fired ammunition.

At the same time, due to the fact that the training cartridge does not spontaneously eject from the chamber, but to expel it is necessary to make a conscious effort (pulling out of the mouth, using gripping tools from the chamber), significantly reduced the possibility of sharp introduction and unwanted shot. guns.

- 1 GB 33653 U1

Clarification of drawings

FIG. 1 is a cross-sectional view of the training cartridge with the location of the resilient member that prevents spontaneous ejection from the weapon chamber and the location of the spring-loaded priming member. In Fig. 2, the training cartridge is shown in full from the side.

Examples of realized technical solution

The practice hub of FIG. 1 has a recess 3 around the perimeter, into which the O-ring 4 is inserted during final assembly. It also has a tapered portion 2 where contact with the extractor could occur so as to prevent engagement. There is also a cylindrical elastic piece 1 inserted in the spot where the match should be, which simulates a match when the percussion device strikes. This part 1 has a lifetime of several hundred starts and can be exchanged to extend the lifetime of the whole. Otherwise, the practice hub of Fig. 1 maintains the dimensions of the 9x19 live hub to ensure reliable insertion into and out of the chamber, although this exact fit is not necessary, and it is not possible for this product to have parts stylized so that it will not look exactly like sharp charge.

PROTECTION REQUIREMENTS

Claims (1)

A plastic or metal practice hub, solid or hollow, of a sharp hub-like shape, with a sprung or resilient component (1) at a point where there is a match for a sharp hub intended to be inserted into a firearm chamber with central inflammation; in that its construction has a tapered lower portion (2), thereby avoiding contact with the firearm cartridge extractor; and that at the same time it has a recess (3) provided with a resilient seal (4) at one or more points adjacent to the cartridge chamber.