Breechblock assembly for a firearm and related firearm

Patent metadata

Field	Value
Publication number	US-11566859-B2
Application number	US-202017433556-A
Country	US
Kind code	B2
Filing date	Feb 24, 2020
Priority date	Feb 25, 2019
Publication date	Jan 31, 2023
Grant date	Jan 31, 2023

Abstract

A breechblock assembly for a firearm includes a guiding element having a slide adapted to slide along a guide in an actuation system of the breechblock assembly driven by a motor. A shutting element shuts an opening in a breech ring of the firearm. A percussion pin is pushed by an elastic element slide along a longitudinal axis, as a function of the firing cycle of the firearm to an axial hole in the shutting element. The percussion pin is shaped to partially come out of the axial hole of the shutting element for firing a piece of ammunition. The breechblock assembly comprises a control system for controlling the percussion pin. The control system controls the operability and the movement of the percussion pin independently of a firing cycle of the firearm.

First claim

The invention claimed is:

1. A breechblock assembly for a firearm, comprising:
a guiding element comprising, a slide adapted to slide along a guide comprised in an actuation system of the breechblock assembly driven by a motor;
a shutting element, adapted to shut an opening in a breech ring of the firearm;
a percussion pin, which is pushed by an elastic element;

said shutting element comprising an axial hole in which said percussion pin is adapted to slide along a longitudinal axis, as a function of a firing cycle of the firearm with which said breechblock assembly is associated;
said percussion pin being shaped to partially come out of said axial hole of the shutting element for firing a piece of ammunition;
said breechblock assembly comprising a control system for controlling the percussion pin;
said control system being adapted to control prevention of movement of the percussion pin independently of the firing cycle of the firearm;
wherein said guiding element comprises a supporting portion;
wherein said control system is constrained to said element and fixed to said supporting portion.

2. The breechblock assembly according to claim 1 , wherein said control system comprises at least one locking element for locking the percussion pin;
said locking element being movable independently of the firing cycle of the firearm.

3. The breechblock assembly according to claim 1 , wherein said control system comprises an actuator adapted to move at least one locking element between: a first position of interaction with said percussion pin, in which said at least one locking element keeps said percussion pin in an armed operating configuration; and a second position of release of said percussion pin, in which freedom of movement is left to said percussion pin.

4. The breechblock assembly according to claim 1 , wherein:
said guiding element comprises a housing;
said breechblock assembly comprising a supporting element adapted to be partially inserted into said housing of the guiding element, positioning said supporting element coaxial to said housing;
said supporting element being pushed by a second elastic element;
said percussion pin being adapted to be housed, at least partially, inside said supporting element;
said axial hole being shaped for receiving, at least partially, said supporting element;
said guiding element, said supporting element and said shutting element being constrained to one another so that said shutting element and said supporting element are telescopically movable relative to said guiding element.

5. An assembly comprising:
the breechblock assembly according to claim 1 ;
the actuation system for said breechblock assembly, adapted to move said breechblock assembly into different positions, as a function of firing phases of the firearm.

6. The assembly according to claim 5 , wherein said actuation system comprises a drum shaped cylindrical cam adapted to move the slide in said breechblock assembly.

7. The assembly according to claim 5 , comprising the actuation system comprising:
a first mechanism adapted to allow closing and opening the breech ring by acting upon the shutting element of the breechblock assembly;
a second mechanism adapted to allow actuating the percussion pin of the breechblock assembly as a function of firing phases of the firearm.

8. A firearm comprising:
a recoiling mass; comprising:
a breech ring;
a barrel;
a braking system adapted to brake recoiling motion of a recoiling mass of the firearm;
an actuator system for actuating the firearm, moving integrally with said recoiling mass;
a breechblock assembly, comprising:
a guiding element comprising, a slide adapted to slide along a guide comprised in an actuation system of the breechblock assembly driven by a motor;
a shutting element, adapted to shut an opening in the breech ring of the firearm;
a percussion pin, which is pushed by an elastic element;
said shutting element comprising an axial hole in which said percussion pin is adapted to slide along a longitudinal axis, as a function of a firing cycle of the firearm with which said breechblock assembly is associated;
said percussion pin being shaped to partially come out of said axial hole of the shutting element for firing a piece of ammunition;
said breechblock assembly comprising a control system for controlling the percussion pin;
said control system being adapted to control prevention of movement of the percussion pin independently of the firing cycle of the firearm;

the breechblock assembly adapted to connect to the breech ring to allow firing the piece of ammunition;
an actuation system for said breechblock assembly, adapted to move said breechblock assembly into different positions, as a function of firing phases of the firearm.

9. A breechblock assembly for a firearm, comprising:
a guiding element comprising, a slide adapted to slide along a guide comprised in an actuation system of the breechblock assembly driven by a motor;
a shutting element, adapted to shut an opening in a breech ring of the firearm;
a percussion pin, which is pushed by an elastic element;
said shutting element comprising an axial hole in which said percussion pin is adapted to slide along a longitudinal axis, as a function of a firing cycle of the firearm with which said breechblock assembly is associated;
said percussion pin being shaped to partially come out of said axial hole of the shutting element for firing a piece of ammunition;
said breechblock assembly comprising a control system for controlling the percussion pin;
said control system being adapted to control prevention of movement of the percussion pin independently of the firing cycle of the firearm;
wherein:
said guiding element comprises a housing;
said breechblock assembly comprising a supporting element adapted to be partially inserted into said housing of the guiding element, positioning said supporting element coaxial to said housing;
said supporting element being pushed by a second elastic element;
said percussion pin being adapted to be housed, at least partially, inside said supporting element;
said axial hole being shaped for receiving, at least partially, said supporting element;
said guiding element, said supporting element and said shutting element being constrained to one another so that said shutting element and said supporting element are telescopically movable relative to said guiding element.

Assignees

• Leonardo Spa

Inventors

• Benedini Giordano
• Benzoni Valter
• Bettelli Tiziano
• Conti Stefano
• Forcina Mattia
• Sarioli Enrico

Classifications

• F41A7/10 Primary

  using a rotating cylindrical drum having a camming groove (F41F1/10 takes precedence) · CPC title

• F41A17/64 Primary

  Firing-pin safeties, i.e. means for preventing movement of slidably- mounted strikers (F41A17/02 - F41A17/40 take precedence) · 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

• F41A3/26 Primary

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