Actuator loading/unloading device for disc drive

A device to load/unload an actuator to/from a disc received by a disc drive, comprising:

• a block unit disposed at a base of the disc drive positioned outside the disc;
• a ramp member positioned on the block unit, the ramp member being lifted from and lowered on the block unit, the ramp member parking the actuator on the device by constraining a side end portion of a swing arm of the actuator during the loading/unloading of the actuator;
• a stopper to restrict a lifting range of the ramp member;
• and
• a lifting/lowering unit to lift and lower the ramp member between the block unit and the stopper, comprising:
• a magnet inserted into a bottom surface of the ramp member,
• an electromagnet inserted into a top surface of the block unit, facing the magnet, and
• a spring positioned between the stopper and the ramp member, to elastically bias the ramp member toward the block unit.

A device to load/unload an actuator to/from a disc received by a disc drive, comprising:

• a block unit disposed at a base of the disc drive positioned outside the disc;
• a ramp member positioned on the block unit, the ramp member being lifted from and lowered on the block unit, the ramp member parking the actuator by constraining a side end portion of a swing arm of the actuator during the loading/unloading of the actuator;
• a stopper to restrict a lifting range of the ramp member;
• and
• a lifting/lowering unit to lift and lower the ramp member between the block unit and the stopper, comprising:
• a magnet inserted into a bottom surface of the ramp member,
• an electromagnet inserted into a top surface of the block unit, facing the magnet, and
• an iron strip passing through a center portion of the electromagnet, and being positioned on the block unit, facing the magnet.

A device to load/unload an actuator having a swing arm to/from a disc received by a disc drive, comprising:

• a ramp member to constrain a side end portion of the swing arm during loading/unloading of the actuator;
• a block unit, the ramp member being lifted from and lowered on the block unit;
• a stopper to restrict a movement of the ramp member;
• and
• a lifting/lowering unit to lift and lower the ramp member between the block unit and the stopper, comprising:
• a first magnet inserted in the ramp member,
• a second magnet inserted in the block unit, and
• an iron strip passing through the second magnet to generate a magnetic force between the first magnet and the iron strip, the magnetic force lowering the ramp member.

An optical recording/reproducing apparatus to record/reproduce information to/from a disc, comprising:

• an actuator comprising a swing arm being loaded/unloaded to/from the disc;
• a loader/unloader to load/unload the actuator to/from the disc, the loader/unloader comprising a ramp member to constrain a side end portion of the swing arm during loading/unloading of the actuator;
• a block unit, the ramp member being lifted from and lowered on the block unit;
• a stopper to restrict a movement of the ramp member;
• and
• a lifting/lowering unit to lift and lower the ramp member between the block unit and the stopper, comprising:
• a first magnet inserted in the ramp member,
• a second magnet inserted in the block unit, and
• an iron strip passing through the second magnet to generate a magnetic force between the first magnet and the iron strip, the magnetic force lowering the ramp member.

An optical recording/reproducing apparatus to record/reproduce information to/from a disc, comprising:

• an actuator comprising a swing arm being loaded/unloaded to/from the disc;
• a loader/unloader to load/unload the actuator to/from the disc, the loader/unloader comprising a ramp member to constrain a side end portion of the swing arm during loading/unloading of the actuator;
• a block unit, the ramp member being lifted from and lowered on the block unit;
• a stopper to restrict a movement of the ramp member;
• and
• a lifting/lowering unit to lift and lower the ramp member between the block unit and the stopper, comprising:
• a first magnet inserted in the ramp member,
• a second magnet inserted in the block unit, and
• a spring between the stopper and the ramp member, the spring elastically biasing the ramp member toward the block unit.