| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a key system in which the miniaturization of a key and cost reduction are realized. SOLUTION: The key system is composed of the key 1, a cylinder 5 and a computer 8. The key 1 consists of an inserting section 2 and a holding section 3, and an RFID module 6 with an IC element 62 is incorporated into the inserting section 2. A discriminating ID for an operator or the key 1 is stored in the IC element 62. An antenna coil 62b is molded integrally in the IC element 62. The cylinder 5 is constituted by rotatably fitting a columnar cylinder rotary section 52 while being closely contacted with the inner circumferential surface of a cylindrical cylinder fixing section 51. The cylinder fixing section 51 has a terminal 54 connected to the computer 8 through a cable 5. The cylinder rotary section 52 has an antenna unit 7 closely contacted with the terminal 54.</p> |
