| 摘要 |
<p>The lock is characterised by at least one shaft element (11), is provided of a diameter chosen to locate in a rotatable manner within an aperture (5,6) adjacent a wall opening (2), and also an aperture 9,10) in a shutter (3) which is slidable to open and close said opening, the shaft element having a head part (12) for locating against the secure side of said wall or shutter as appropriate, the length of the shaft providing an outer end part (14) which projects outwardly from the outermost surface of said wall or shutter as appropriate, that intermediate part (13a) of the shaft length which locates within only one of the wall and shutter apertures being formed as a flat, diametral web (15), and by manipulating element (18) having a dial (19) with combination numbers (20) fitted on the outer end part of its shaft element in one of a number of different fixed rotational positions, to determine the combination. In use, the manipulating element is rotable to bring its respective shaft element web into alignment with, and thereafter slide in, an associated slot (7) opening into the aperture of the appropriate wall or shutter.</p> |
