| 摘要 |
PROBLEM TO BE SOLVED: To provide a shutter structure the assembly work of which is made more efficient and the number of components of which is reduced, because a shutter structure which opens and closes a shutter set for closing the insertion and ejection slot of a device to insert and eject a disk by using a tension spring has such defects that an assembly work takes labor and time and a component such as the tension spring is required. SOLUTION: The shutter structure consists of a cam 17 provided on supporting rotary shafts 15a and 15b on which a shutter 15 rotates and a pressing member 16 to press the cam surface of the cam 17, and is characterized by energizing the shutter 15 to set it in a prescribed state by pressing the cam surface of the cam 17 by the pressing member 16.
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