CASSETTE BODY FOR PLATE, AND SHAFT BODY USED THEREIN

摘要

PROBLEM TO BE SOLVED: To provide a long-life cassette body for a plate which restores to its original size without causing incorrect size of a shaft body or accumulation of stress-strain distortion in a resin part as it is cooled even after it is heated to be expanded. SOLUTION: This cassette body 1 stores a plate P such as a magnetic disc. Shaft bodies 8, 9, 10, and 11 are provided between two side plates 2 and 3. The shaft body comprises a metal core member 12 slidably inserted into the resin part 13, with plural grooves 14 provided for the plate to be engaged. The resin part 13 is fixed to the core member 12 at one position.