Firing pin blocking safety
View Patent ↗A safety for a firearm includes a blocking member that has a relieved portion adjacent to a relieved portion of a firing pin of the firearm. The blocking member is movable between a safe position wherein the relieved portions are not in registration and a fire position wherein the relieved portions are in registration. The blocking member moves from the safe to the fire position in response to a pull of the firearm's trigger. Movement of the blocking member is rotational in response to a pawl as would also be used to rotate the cylinder of a revolver.
1. A firearm, comprising:
a frame;
a barrel attached to said frame and defining a firing axis oriented lengthwise along said barrel;
a hammer pivotably mounted on said frame;
a trigger pivotably mounted on said frame and operatively associated with said hammer;
a firing pin comprising a first cylindrical body mounted within said frame so as to be struck by said hammer upon a pull of said trigger, said firing pin being oriented substantially parallel to said firing axis and having a relieved portion on one side thereof, said relieved portion of said firing pin comprising a notch positioned in said first cylindrical body;
a blocking member comprising a second cylindrical body positioned within said frame and oriented transversely to said firing pin, said blocking member having a relieved portion adjacent to said relieved portion of said firing pin, said relieved portion of said blocking member comprising a notch positioned in said second cylindrical body;
a pawl located within said frame and moveable in a direction transverse to said firing axis;
a lever arm attached to said blocking member and oriented transversely to said axis of rotation thereof; wherein
said blocking member is rotatably movable about an axis of rotation oriented transversely to said firing axis between a first position, in which said relieved portion thereof is not in registration with said relieved portion of said firing pin, and a second position, in which said relieved portion of said blocking member is in registration with said relieved portion of said firing pin, said blocking member blocking movement of said firing pin in a direction parallel to said firing axis when in said first position, said blocking member allowing movement of said firing pin in a direction parallel to said firing axis when in said second position, and wherein pulling said trigger moves said pawl, said pawl contacting said lever arm to rotate said blocking member from said first position to said second position to unblock said firing pin.
2. The firearm according to claim 1 , wherein said firearm comprises:
an opening in said frame;
a cylinder pivotably attached within said opening in said frame.
3. A safety for a firearm having a frame with a barrel attached to said frame and defining a firing axis oriented lengthwise along said barrel, a hammer pivotably mounted on said frame, a trigger pivotably mounted on said frame and operatively associated with said hammer, said safety comprising:
a firing pin comprising a first cylindrical body mounted within said frame so as to be struck by said hammer upon a pull of said trigger, said firing pin being oriented substantially parallel to said firing axis and having a relieved portion on one side thereof, said relieved portion of said firing pin comprising a notch positioned in said first cylindrical body;
a blocking member comprising a second cylindrical body positioned within said frame and oriented transversely to said firing pin, said blocking member having a relieved portion adjacent to said relieved portion of said firing pin, said relieved portion of said blocking member comprising a notch positioned in said second cylindrical body;
a pawl located within said frame and moveable in a direction transverse to said firing axis;
a lever arm attached to said blocking member and oriented transversely to said axis of rotation thereof; wherein
said blocking member is rotatably movable about an axis of rotation oriented transversely to said firing axis between a first position, in which said relieved portion thereof is not in registration with said relieved portion of said firing pin, and a second position, in which said relieved portion of said blocking member is in registration with said relieved portion of said firing pin, said blocking member blocking movement of said firing pin in a direction parallel to said firing axis when in said first position, said blocking member allowing movement of said firing pin in a direction parallel to said firing axis when in said second position, and wherein pulling said trigger moves said pawl, said pawl contacting said lever arm to rotate said blocking member from said first position to said second position to unblock said firing pin.