Disk cartridge and disk drive apparatus
OwnerMasami Miikeinventor
Life of this patent
Estimating the term…
Abstract
A rotor is provided which is rotatably disposed between a first shell and a recording medium, in a containing space formed inside the first shell and a second shell. The rotor includes a first wall formed along the circumferential direction of the rotor, and a part of the first wall is cut out to form a first opening. The second shell includes a second wall formed so as to overlap with the inside of the first wall along the outer circumference of the recording medium, on the outside in the radial direction of the outer circumference of the recording medium. The second wall and the first wall constitute a labyrinth structure portion for isolating the recording medium and the exterior of the recording medium from each other. With the rotor rotated, the first opening and a second opening constitute a head in/out opening.
Claims13
A disk cartridge for containing a disk form recording medium therein, including an opening through which a head for reading or writing information recorded on said recording medium is inserted, comprising:
- a first shell and a second shell disposed opposite to said first shell, for constituting therebetween a containing space for containing said recording medium;
- a rotor disposed in said containing space so as to be rotatable around the center of rotation of said recording medium;
- and
- a shut-up mechanism for restraining the rotation of said recording medium relative to said first shell,
- wherein said shut-up mechanism comprises,
- a first cam formed in said rotor;
- a cam follower capable of linear motion along said first cam of said rotor;
- and
- a second cam;
- wherein said second cam is pressed by said cam follower to restrain the rotation of said recording medium relative to said first shell;
- wherein any one of said first shell, said second shell, and said rotor is provided with a first wall, while another of said first shell, said second shell, and said rotor is provided with a second wall;
- wherein said first wall and said second wall constitute a labyrinth structure.
A disk drive apparatus into which a disk cartridge containing a disk form recording medium therein is inserted and which is for reading or writing information recorded on said recording medium, wherein
- said disk cartridge comprises:
- a first shell and a second shell disposed opposite to said first shell, for constituting therebetween a containing space for containing said recording medium;
- a rotor disposed in said containing space so as to be rotatable around the center of rotation of said recording medium;
- and
- a shut-up mechanism for restraining the rotation of said recording medium relative to said first shell,
- wherein said shut-up mechanism comprises,
- a first cam formed in said rotor;
- a cam follower capable of linear motion along said first cam of said rotor;
- and
- a second cam;
- wherein said second cam is pressed by said cam follower to restrain the rotation of said recording medium relative to said first shell;
- wherein any one of said first shell, said second shell, and said rotor is provided with a first wall, while another of said first shell, said second shell, and said rotor is provided with a second wall;
- wherein said first wall and said second wall constitute a labyrinth structure.
Dependencies are inferred from the claim text.