Mechanical Locking Device

Abstract

A mechanical safety locking device is electromechanically coupled to an authenticator device, which provides stable interlocking in an active safety position where the interlocking is only deactivated by means of a predefined personalised password associated with a specific user. The mechanical locking device comprises a trigger lever that cooperates with a trigger bar; an interlocking element which is configured to interlock the trigger lever; a displacer element which is adapted to move an interlock bolt between an interlocked position, defined by the physical contact between an appendix and the interlock bolt, and the disinterlocked position, defined by the absence of physical contact between the appendix and the interlock bolt.

1 . A mechanical safety locking device of a lightweight firearm, wherein that the mechanical locking device comprises:
 a trigger lever that cooperates with a trigger bar;   an interlocking element which is configured to interlock the trigger lever;   a displacer element which is adapted to move an interlock bolt between an interlocked position, defined by the physical contact between an appendix and the interlock bolt, and the disinterlocked position, defined by the absence of physical contact between the appendix and the interlock bolt.   
     
     
         2 . The device of  claim 1 , wherein the trigger lever has a broken zig-zag line shape comprising a first section which is in physical contact with the trigger bar, which extends substantially in a straight line from the trigger area to the firing pin area thereof, folding upon itself on the outer side of the first section; and a third section perpendicular to the second section. 
     
     
         3 . The device of  claim 2  wherein the interlock bolt is configured to be moved by the displacer device between the interlocked and disinterlocked position. 
     
     
         4 . The device of  claim 3  wherein the displacer element is of the bushing type, which is adapted to mechanically engage the interlock bolt. 
     
     
         5 . The device of  claim 1  wherein the mechanical locking device also comprises an authenticator device for generating electrical control signals which are sent to the displacer element and allow the interlock bolt to move between the interlocked and disinterlocked position. 
     
     
         6 . The device of  claim 5  wherein the authenticator device is adapted to evaluate a predefined password received via a grip transmitter-receiver supplied by a potential user of the firearm; if the verification of the personalised password is positive, the displacer element moves the interlock bolt to its disinterlocked position. 
     
     
         7 . The device of  claim 6  wherein the predefined password is supplied to the authenticator device by means of an alphanumeric keyboard disposed on the firearm or by means of a portable alphanumeric keyboard which allows remote connection via a transceiver included in the mechanical locking device.