Method of accessing a disk-like recording medium in a disk cartridge

An access method of accessing a disk-like recording medium in a disk cartridge inserted into a disk apparatus by a head, comprising the steps of:

• a loading step of loading a disk cartridge rotatably accommodating a disk-like recording medium;
• a rotating step of rotating said disk-like recording medium in said loaded disk cartridge;
• and
• a movement step of, after said disk cartridge is loaded in said loading step, rotating a head moving means supported by a rotation supporting member provided on a chassis and mounted with a head means in the vicinity of its end portion to move said head means to a desired position of said disk-like recording medium in said disk cartridge,
• wherein said movement step comprises a rotation step for rotating a cam means provided on said chassis and a head moving means biasing step for biasing said head means in the direction in which said head means is inserted into said disk cartridge,
• wherein said movement step comprises a ramp means insertion step of inserting said ramp means for keeping two heads of said head means away from each other substantially to the vicinity of a position between said two heads, and a head insertion step of inserting said head means into said disk cartridge while said ramp means is being located in the vicinity of a position between said two heads,
• wherein said head insertion step comprises a step of drawing said ramp means from a position in the vicinity of the position between said two heads and a movement step of moving said head means to a position where said disk-like recording medium should be located between said two heads, and
• wherein said head moving means comprises a bent portion, a first straight portion projected from said bent portion in a first direction and supported by said rotation supporting member and a second straight portion projected from said bent portion in a second direction and provided with said head means in the vicinity of its end portion, and wherein in said head insertion step, said second straight portion and a part of said first straight portion are inserted into said disk cartridge, thereby said head means being inserted into said disk cartridge.