Breechblock opening and closing device for a large-caliber weapon
AssigneeRheinmetall W & M GmbH
InventorHorst Menges
Life of this patent
Estimating the term…
Abstract
A weapon includes a barrel; a breech ring attached to a rearward end of the barrel; a groove provided in the breech ring; a movable breechblock mounted in the breech ring and having open and closed positions; a slide mounted in the breech ring and being guided by the breech ring groove for displacements relative to the breech ring; a connecting element for coupling the slide to the breechblock for causing motion of the breechblock between the open and closed positions by the displacements of the slide; and a control cam rotatably supported in the breech ring. The control cam has a cam track coupled to the slide for effecting displacements of the slide upon rotation of the control cam Further, an external drive is provided for rotating the control cam.
Claims8
A weapon comprising
- (a) a barrel;
- (b) a breech ring attached to a rearward end of said barrel;
- (c) a groove provided in said breech ring;
- (d) a movable breechblock mounted in said breech ring and having open and closed positions;
- (e) a slide mounted in said breech ring and being guided by said groove for displacements relative to said breech ring;
- (f) connecting means for coupling said slide to said breechblock for causing motion of said breechblock between said open and closed positions by the displacements of said slide;
- (g) a control cam rotatably supported in said breech ring;
- said control cam having a cam track coupled to said slide for effecting displacements of said slide upon rotation of said control cam;
- and
- (h) an external drive for rotating said control cam.
A weapon comprising
- (a) a barrel;
- (b) a breech ring attached to a rearward end of said barrel;
- said breech ring having opposite side faces;
- (c) a groove provided in each of said side faces of said breech ring;
- (d) a breechblock mounted in said breech ring and having open and closed positions;
- (e) separate slides mounted in said breech ring and being guided by said groove of respective said side faces of said breech ring for displacements relative to said breech ring;
- (f) connecting means for coupling said slides to one another and to said breechblock for causing motion of said breechblock between said open and closed positions by the displacements of said slides;
- (g) two control cams rotatably supported in said breech ring;
- each said control cam having a cam track in contact with a respective said slide for effecting displacements of said slides upon rotation of said control cams;
- and
- (h) a common external drive for rotating said control cams.
Dependencies are inferred from the claim text.