Patent ID: 6374527
Filing Date: 2002-04-23
Classification: F41A

Abstract:
In a safety device intended to prevent the unauthorized use of a fire-arm having a barrel which has at least one recess in at least one location of its inner surface, the safety device comprising: a device body intended to be inserted into the barrel of the fire-arm, said device body having a forward end portion and a rear end portion; a rotatable latch eccentrically mounted at the rear end portion of said device body, said rotatable latch being suitable for keeping an inactive position, in which it is included within the periphery of said device body, and an active position in which a portion of said latch projects with respect to the periphery of said device body; a lock mounted within the forward end portion of said device body, said lock being operable by means of a proper key; and a transmission member connected to said rotatable latch and to said lock;the improvement wherein the safety device further comprises: a slider, a guide means on said device body guiding said slider for displacement along a diametrical direction with respect to said device body, said slider being suitable for keeping an inactive position, in which it is included within the periphery of the device body, and an active position, in which a portion of the slider projects out of the device body at the side opposite the side wherein, in its active position, projects said rotatable latch; and a cam coupled in rotation to said rotatable latch and engaging said slider; at least one of said rotatable latch and said diametrically displaceable slider being arranged in a position corresponding to a recess of said fire-arm barrel and engaging said recess in its own active position; whereby, by rotating said transmission member through said lock, both said rotatable latch and said slider can be moved to their respective active or inactive positions by the same rotation of said lock and transmission member.