| 摘要 |
PROBLEM TO BE SOLVED: To enhance the operation for preventing a shutter member from coming off accompanied with the deformation of a case due to the impact, bending, etc., at the time when a cartridge is dropped, or the like. SOLUTION: Disc-like magnetic disk media are rotatably housed in the case C composed of an upper shell 2 and a lower shell 3, and guide pawl parts 44, 45 are provided on the shutter member 4 opening/closing an opening of the case C for inserting a magnetic head, meanwhile, guide grooves 12, 13 wherein the guide pawls 44, 45 are slid, are provided on the case C, and further a slit stated opening 16 is formed on the front end surface of the case, then in the slit stated opening 16 of the case C after the shutter member 4 is mounted, a regulation member 8 is inserted and fixed for regulating the deformation of the upper shell 2 and the lower shell 3 to the direction where the slit stated opening 16 becomes narrower.
|
