| 摘要 |
PROBLEM TO BE SOLVED: To facilitate and stabilize operation by placing a carrier rack in a placing part, inserting a carrier fail off preventive shaft into an interpolation inserting hole and preparing a projecting part or engaging part in the placing part so that the carrier rack and the placing part are combined via the carrier fall off preventive shaft. SOLUTION: When a disk housing rack 3a is drawn out of a housing body 19 of an auto changer 1, the disk housing rack 3a which is fixed to a mount of a slide rail part via a carrier fall off preventive shaft 17 is freely moved with fixing to the mount released by removing the carrier fall off preventive shaft 17 which is inserted into a storage inserting hole 21F, and the disk housing rack 3a is removed from the changer 1. Also, the disk housing rack 3a is surely fitted into a projecting part provided in the mount of a slide rail part to fix the disk housing rack 3a by inserting the carrier fall off preventive shaft 17 into the storage inserting hole 21F.
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