DISK CARTRIDGE, DISK DEVICE AND SHUTTER OPENING/CLOSING MECHANISM

摘要

PROBLEM TO BE SOLVED: To provide a shutter opening/closing mechanism capable of surely opening/closing a shutter by a simple structure. SOLUTION: In a main body case 11 having a shutter 26 to open/close a window part for exposing the recording surface 5 of a disk 2 and for rotatably housing the disk 2, a rotor 30 of which the outer peripheral surface is exposed and a movement transmitting means 35 for transmitting the rotation of the rotor 30 to the shutter 26 are disposed. A disk operation device for recording/ reproducing information to/from the disk 2 is provided with a guide rib, and an operation rack laid along the insertion moving direction of a disk device 1. The shutter 26 is moved while engaging an operation positioning groove part 17 formed in a recessed groove shape in the vicinity of the rotor 30 in the loading moving direction of the disk device 1 on the outer surface of the main body case 11 with the guide rib to position the same, and engaging the rotor 30 with the operation rack and rotating it.