| 摘要 |
PROBLEM TO BE SOLVED: To make stably drivable an optical disk by preventing a damage caused by that a flexible sheet shape optical disk comes into contact with a stabilizing means. SOLUTION: A linear pressure-sensitive sensor 8 is arranged at the lower end of a projecting member 2. When the sensor 8 is brought into contact with an optical disk sheet 1 because of a vibration, etc., the sensor 8 transmits detected maximum pressure data to a pressure determining device 9. The device 9 compares the pressure data with a predetermined threshold. When the value of the data is not less than the threshold, a projecting member height adjusting device 6 saves the projecting member 2 from the optical disk sheet 1. COPYRIGHT: (C)2004,JPO
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