Recording/reproduction apparatus, driving method therefor and disk cartridge

A recording/reproduction apparatus comprising:

• a driving part rotating a flexible recording disk about a rotational axis thereof;
• a stabilizing part applying aerodynamic force to the recording disk so as to control disk axial runout of the recording disk and stabilize it;
• and
• a recording/reproduction unit carrying out recording/reproduction of information to/from the recording disk by scanning it, wherein:
• said stabilizing part comprises a main stabilizing member for controlling disk axial runout at a recording/reproduction position with the recording/reproduction unit;
• and an auxiliary stabilizing member for stabilizing the disk surface at positions other than the recording/reproduction position;
• said auxiliary stabilizing member is applied for the recording disk in such a manner as to incline the disk surface of the recording disk from a plane perpendicular to the rotational axis of the recording disk, and said main stabilizing member is applied for the recording disk in such a manner that, in the vicinity of a ridgeline part produced on the recording disk due to the inclination of the recording disk surface, positive or negative pressure is generated in the recording disk rotation direction, so as to cancel the inclination in the recording/reproduction surface of the recording disk.

A recording/reproduction apparatus comprising:

• a driving part rotating a flexible recording disk about a rotational axis thereof;
• a stabilizing part applying aerodynamic force to the recording disk so as to control disk axial runout of the recording disk and stabilize it;
• and
• a recording/reproduction unit carrying out recording/reproduction of information to/from the recording disk by scanning it, wherein:
• said stabilizing part comprises a main stabilizing member for controlling disk axial runout at a recording/reproduction position with the recording/reproduction unit;
• and an auxiliary stabilizing member for stabilizing the disk surface at positions other than the recording/reproduction position;
• said auxiliary stabilizing member is applied for at least one of two areas of the recording disk surface divided by an arbitrary straight line passing through a neighborhood of the recording disk center, and is applied for the recording disk in such a manner as to incline the disk surface of the recording disk from a plane perpendicular to the rotational axis of the recording disk, and said main stabilizing member is applied along a disk radius line shifted by an arbitrary angle from a ridgeline part produced on the recording disk by a function of the auxiliary stabilizing member.

A recording/reproduction apparatus comprising:

• a driving part rotating a flexible recording disk about a rotational axis thereof;
• a stabilizing part applying aerodynamic force to the recording disk so as to control disk axial runout of the recording disk and stabilize it;
• and
• a recording/reproduction unit carrying out recording/reproduction of information to/from the recording disk by scanning it, wherein:
• said stabilizing part comprises a main stabilizing member for controlling disk axial runout at a recording/reproduction position with the recording/reproduction unit;
• and an auxiliary stabilizing member for stabilizing the disk surface at positions other than the recording/reproduction position;
• said auxiliary stabilizing member is applied for at least one of two areas of the recording disk surface divided by an arbitrary straight line passing through a neighborhood of the recording disk center, and is applied for the recording disk in such a manner as to incline the disk surface of the recording disk from a plane perpendicular to the rotational axis of the recording disk, and said main stabilizing member is applied in the vicinity of a line parallel to a ridgeline part produced on the recording disk by a function of the auxiliary stabilizing member.

A recording/reproduction apparatus comprising:

• a part fixing a flexible recording disk on a spindle and rotating it;
• a stabilizing plate applying aerodynamic force so as to control and stabilize disk axial runout of the flexible recording disk;
• and
• a recording/reproduction head scanning so as to record information to and/or reproduce information from the recording disk, wherein:
• said stabilizing plate is configured like a flat plate covering at least a recording area of the recording disk;
• and
• a position adjustment part is provided for adjusting a mutual distance in a disk-rotational-axis direction between the spindle and the stabilizing plate.

A disk cartridge containing a flexible recording disk and loaded in a recording/reproduction apparatus comprising a part fixing the flexible recording disk on a spindle and rotating it;

• a stabilizing plate applying aerodynamic force so as to control disk axial runout of the flexible recording disk and stabilize it;
• a recording/reproduction head scanning so as to record information to and/or reproduce information from the recording disk;
• and a position adjustment part provided for adjusting a mutual distance in a disk rotational axis direction between the spindle and the stabilizing plate wherein:
• said stabilizing plate is configured like a flat plate covering at least a recording area of the recording disk, and is provided on an inner wall of the disk cartridge.

A recording/reproduction apparatus comprising:

• a part fixing a flexible recording disk on a spindle and rotating it;
• a stabilizing plate applying aerodynamic force so as to control and stabilize disk axial runout of the flexible recording disk;
• and
• a recording/reproduction head scanning so as to record information to and/or reproduce information from the recording disk, wherein:
• said stabilizing plate is configured like a flat plate covering at least a recording area of the recording disk;
• and
• information recording and/or reproduction by means of said recording/reproduction head is carried out in a specific disk stabilization condition range determined by a rotation speed Sr of the spindle and a distance Cbd between the recording disk and the stabilizing plate.