Removable disk drive apparatus having large and small disk support lugs

1. A removable disk drive apparatus, comprising:

a tray on which a plurality of concave portions for a disk for supporting disk storage media having different diameters are formed in concentric positions, wherein

said tray comprises:

larger disk support lugs provided at plural points on a periphery of a concave portion for a larger diameter disk; and

smaller disk support lugs provided at plural points on a periphery of a concave portion for a smaller diameter disk;

said smaller disk support lugs including:

a storage groove provided at a plurality of points on the periphery of the concave portion for a larger diameter disk;

flexible lugs with elastic deformation supported in said storage groove, and having tip portions projecting into the periphery of the concave portion for a smaller diameter disk; and

a stopper to keep the tip portions of the flexible lugs projecting above a surface of the periphery of the concave portion for the smaller diameter disk from the storage groove.

2. The removable disk drive apparatus according to claim 1 , wherein

said flexible lug is fixed to said tray with a base portion, and is formed as an elastic one point support structure, and a tip portion can be deformed elastically in a thickness direction of said tray using the base portion as a fulcrum.

3. The removable disk drive apparatus according to claim 2 , wherein

said flexible lugs can be configured by bending an elastic metal line material in a U-shaped form, fixing the base portions on both ends to end surfaces of an outer periphery of the storage groove, and allowing the tip portion of a U-shaped unit to project into the periphery of the concave portion for a smaller diameter disk from the storage groove.

4. The removable disk drive apparatus according to claim 3 , wherein

said stopper is configured by projections projecting opposite each other on both sides of the storage groove, and when the flexible lugs are subject to elastic deformation, they pass over the stopper to suppress restoration of the elasticity.

5. The removable disk drive apparatus according to claim 4 , wherein

said smaller disk support lugs are provided at least two points below and along the periphery of the concave portion for a smaller diameter disk.

6. The removable disk drive apparatus according to claim 3 , wherein

said smaller disk support lugs are provided at least two points below and along the periphery of the concave portion for a smaller diameter disk.

7. The removable disk drive apparatus according to claim 2 , wherein

said flexible lugs are elastic metal plates.

8. The removable disk drive apparatus according to claim 7 , wherein

said stopper is configured by projections projecting opposite each other on both sides of the storage groove, and when the flexible lugs are subject to elastic deformation, they pass over the stopper to suppress restoration of the elasticity.

9. The removable disk drive apparatus according to claim 8 , wherein

said smaller disk support lugs are provided at least two points below and along the periphery of the concave portion for a smaller diameter disk.

10. The removable disk drive apparatus according to claim 7 , wherein

said smaller disk support lugs are provided at least two points below and along the periphery of the concave portion for a smaller diameter disk.

11. The removable disk drive apparatus according to claim 2 , wherein

said stopper is configured by projections projecting opposite each other on both sides of the storage groove, and when the flexible lugs are subject to elastic deformation, they pass over the stopper to suppress restoration of the elasticity.

12. The removable disk drive apparatus according to claim 11 , wherein

said smaller disk support lugs are provided at least two points below and along the periphery of the concave portion for a smaller diameter disk.

13. The removable disk drive apparatus according to claim 2 , wherein

said smaller disk support lugs are provided at least two points below and along the periphery of the concave portion for a smaller diameter disk.

14. The removable disk drive apparatus according to claim 1 , wherein

said smaller disk support lugs are provided at least two points below and along the periphery of the concave portion for a smaller diameter disk.

15. A removable disk drive storage media drive tray, comprising:

concentric axially offset comcave portions for supporting disks having different diameters;

first disk support lugs on a periphery of a first concave for supporting a first disk having a relatively larger diameter; and

second support lugs on a periphery of a second concave portion for supporting a second disk having a relatively smaller diameter,

wherein radially inner ends of the second disk support lugs are axially displaceable from a first storage position to a second holding position, and

wherein axially is defined as a direction parallel to an axis of rotation of the disks,

the removable disk storage media drive tray further comprising a stopper arranged to retain the radially inner ends of the second disk support lugs in the second holding position.