| 摘要 |
<p>PURPOSE: To hold a large quantity of code data in a simple structure by reading a code and unlocking a lock by means of an electronic circuit in which two separate reading elements of a groove or notches of a key provided with a relief coding reading by a mechanical reading device are attached to the key. CONSTITUTION: A key is composed of a grip 40 and a blade 41 which can be inserted in a cylinder lock 23. A notch actuating the cylinder lock 23 is provided at one edge of the blade 41 and a relief coding pattern composed of a plurality of code elements separating from each other along the blade 41 is formed at the other edge face. The electronic key-operable lock is provided with a cylinder 23 in which a key slot 24 is formed, a mechanical reading device having probes 34 projecting into the key slot 24 acting on the code elements in the lock, and a circuit means comparing and judging the result for respective code elements read by the reading device. When an acceptable actuation code is recognized by the circuit means, the lock is opened by the rotation of the cylinder 23.</p> |
