| 摘要 |
<p>A safety lock and its actuation key are disclosed. The lock comprises an apertured barrel mounted in a cylinder which barrel can be rotated with respect to the cylinder when notched cams inside said barrel have their notches aligned, so that by rotating the key at least one longitudinal catch placed between the barrel and said cylinder can take place into said aligned notches. The apertures form two couples of shanks perpendicular to a central channel for the key body and the shanks of a couple are offset in height with respect to one another.</p> |
