Gun lock and firing mechanism for 30mm cannon
AssigneeThe United States of America as represented by the Secretary of the Army
InventorJohn G. Rocha
Life of this patent
Estimating the term…
Abstract
A firing chamber lock and unlock mechanism for automatic large caliber wens having a reciprocable firing chamber and rotatable cam means for both actuation of the locking and unlocking functions and actuation of the reciprocation of the firing chamber synchronized to the firing cycle requirements of the weapon system.
Claims15
In a weapons system including a stationary receiver, a reciprocable firing chamber, a reciprocable bolt and a reciprocable firing mechanism having in and out of battery positions, the improvement comprising:
- means for reciprocating said firing chamber between said positions,
- means carried by the receiver for locking the firing chamber in the in-battery position,
- means carried by the firing chamber to move the bolt between said positions and to secure the bolt in the in-battery position,
- means carried by the bolt to move the firing mechanism between said positions and to secure the firing mechanism, when cocked, in the in-battery position,
- means carried by the firing chamber locking mechanism for automatically initiating release of said cocked firing mechanism to fire a round when said firing chamber is in said in-battery position and,
- means for latching and unlatching said locking means in response to the relative position of said firing chamber.
In a weapon system including a stationary receiver, a reciprocable firing chamber, a reciprocable bolt and a reciprocable firing mechanism having in and out of battery positions, the improvement comprising:
- a firing chamber reciprocating and lock actuation mechanism for locking the firing chamber, bolt, and firing mechanism in the in-battery position, said reciprocating the lock mechanism including
- an outer rotatable casing having a cylindrical cam raceway,
- a cam follower extending through a slot in the receiver and fixedly carried by the firing chamber for movement in said raceway to reciprocate said firing chamber, bolt, and firing mechanism between said positions,
- a cam surface carried by said outer casing for actuating locking of said firing chamber, bolt and firing mechanism in the in-battery position,
- a transverse lock member pivotably carried by said receiver and movable between locking and unlocking position behind said firing chamber in response to engagement thereof by said cam surface,
- means carried by the bolt for cocking said cam surface, and latching the bolt and firing mechanism together for movement to the in battery position and,
- means carried by the lock member to actuate the firing mechanism after the firing chamber, bolt and firing mechanism are locked in the in-battery position.
Dependencies are inferred from the claim text.