| 摘要 |
<p>A key and cylinder lock unit, in which the lock (2) comprises a plug (6) and a cylinder (8), both provided with a plurality of substantially radial cylindrical recesses (12,10) housing pins (16,18) formed in two parts separated by a surface, which when they assume a predetermined axial and rotational position enable the plug (6) to rotate relative to the cylinder (8) under the control of a key inserted into a corresponding seat (14) provided in the plug (6) and interacting with the end of said pins which extend into said seat, characterised in that: that end of said pins which extends into said seat (14) is provided with an eccentric appendix (30), in that face facing said pins (16,18), the key (4) comprises a continuous channel (36) open towards the end of the key shank (34) and of width and cross-section suitable for housing the appendices (30) of the pins, it extending longitudinally with different depths and with a non-rectangular path, the shape of said channel (36) being such that when the key (4) is totally inserted into its seat (14), the axial and rotational position of each pin (16,18) are such that said plug (6) is released from said cylinder (8). <IMAGE></p> |
