| 摘要 |
<p>A rotary cylinder lock and a corresponding key blade are disclosed. The cylinder lock comprises a cylinder shell (19), a key plug (20) rotationally mounted in the shell (19) to provide a shear line (21) between the shell and the key plug, a key slot (11) extending into the key plug (20) parallel to the rotational axis thereof for receiving a key blade (1), at least one locking tumbler (23b) including an elongated body portion guided in a complementary cavity (33b) in the key plug (20), the elongated body portion being capable of rotational movement about its longitudinal axis, and a fence member blockingly associated with the locking tumbler and shaped so that rotational positioning of said locking tumbler with a properly shaped key blade allows said fence member to clear the shear line. The locking tumbler (23a-23e) is further provided with a finger (23bf), which projects transversely outwardly from the rotational axis of the elongated body portion (23b) so as to pivot about the longitudinal axis of said elongated body portion during rotation of the latter, said finger (23bf) extending into the key slot (11) for engagement with the key blade and therewith effecting rotational positioning of the elongated body portion of the locking tumbler.</p> |
