Safety pin operable by a Key,Where The Bolt Head comprises a fixed part, a Movable Piece shaped casing body; a Sliding Magnetic material and Elastic means that stress and wrench to loosen or Fold;Ar The Bolt, which has a tubular body in which is provided with a permanent magnet.

摘要

Safety pin and Key to be operated to loosen or tighten The Bolt Head of the Bo the Security defines a Cavity completely cerrda.For a Magnetic material Body axially sliding into the Cavity with lateral Locking means of cooperating with the body,That is applied against the bottom of the Cavity by a Spring support at the top of the movable Piece, has the external Blind holes for pins of the key,This last, in the tubular Body includes a permanent magnet on the end.Support pins to fit in the Blind holes and simultaneously apply a Magnetic force through the bracket, the base of the mobile Piece,This allows the attracting Body Cavity and lock the head pieces to implement a Touch operated in the Bo this being the only field.Safety bolts that cannot be extracted with conventional Keys or Tools.