Breechblock of a weapon system and weapon system with the breechblock

Patent metadata

Field	Value
Publication number	US-11815325-B2
Application number	US-202217749956-A
Country	US
Kind code	B2
Filing date	May 20, 2022
Priority date	Nov 21, 2019
Publication date	Nov 14, 2023
Grant date	Nov 14, 2023

Abstract

A breechblock for a weapon system having a recoilable barrel and having a breechblock carrier and a rotatable breechblock head. The breechblock head is carried by the breechblock carrier. The breechblock carrier has a control cam that is divided into a number of, preferably at least four, cam sections. The actual weapon function and the unlocking of the breechblock or of the breechblock head are combined in this control cam. The breechblock head comprises a control pin, which engages in the control cam and can be guided therein. Attached to the breechblock carrier are two blocking slides, which keep the breechblock head in one of two different positions, in which positions the breechblock head can enter or leave the locking portion of the barrel, namely, a forward position in the course of the actual functioning of the weapon and a rear position during the advancement of the returning masses.

First claim

What is claimed is:

1. A weapon system comprising:
a weapon barrel that forms part of returning masses; and
a breechblock comprising:
a breechblock carrier; and
a breechblock head carried by the breechblock carrier,

wherein the breechblock carrier has a control cam,
wherein the breechblock head comprises a control pin that engages in the control cam and is guided therein,
wherein at least one slide is attached to the breechblock carrier and engages with the breechblock head, the at least one slide being a locking slide,
wherein the control cam is divided into a plurality of cam sections and comprises at least four cam sections that include a first cam section, a second cam section, a third cam section and a fourth cam section,
wherein a part of the second cam section and the third and fourth cam sections are used fora return of the returning masses, and after the return of the returning masses ends, the fourth cam section is used for the advance of the returning masses and the third cam section is used for the advance of the returning masses without the breechblock head,
wherein the third cam section enables unlocking of the breechblock head during the return of the returning masses, after a shot has been fired, with the breechblock carrier being fixed,
wherein, during the return of the returning masses, an unlocking of the breechblock occurs and during the advance of the returning masses, an extraction of an empty cartridge case occurs via an extractor claw, such that the at least one slide is overrun during the return of the returning masses, and during the advance of the returning masses, the at least one slide engages and holds the breechblock head in a locking position, and
wherein, during an operation of the weapon system, the locking position is released by the at least one slide and the breechblock head is pushed into a forward open position associated with the first cam section of the control cam by a weapon drive or breechblock drive.

2. The weapon system according to claim 1 , wherein the at least one slide includes two slides that are attached to the breechblock carrier and engage with the breechblock head.

3. The weapon system according to claim 1 , wherein the at least one slide is secured to the breechblock carrier by a bar and a guide pin.

4. The weapon system according to claim 1 , wherein the breechblock carrier has at least one guide on a side.

5. The weapon system according to claim 1 , wherein the breechblock is accommodated in a housing, and wherein the housing is part of a weapon housing or alternatively is formed as a module.

6. The weapon system according to claim 5 , wherein the weapon drive or the breechblock drive is arranged in the housing.

7. The weapon system according to claim 1 , wherein the weapon drive or the breechblock drive is an external drive.

Assignees

• Rheinmetall Waffe Munition Gmbh

Inventors

• Eggert Klaus-Peter

Classifications

• F41A25/10

  Spring-operated systems · CPC title

• F41A7/08 Primary

  Drives for externally-powered guns, i.e. drives for moving the breech-block or bolt by an external force during automatic firing · CPC title

• F41A15/14

  the ejector being mounted on or within the bolt; {Extractors per se} · CPC title

• F41A3/26 Primary

  semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt · CPC title

• F41A25/00

  Gun mountings permitting recoil or return to battery, e.g. gun cradles; Barrel buffers or brakes (recoilless guns F41A1/08) · CPC title