Patent ID: 6154431
Filing Date: 2000-11-28
Classification: G11B

Abstract:
A disk rotation drive apparatus including a chucking member with a flat surface on which a disk rests, a motor for rotating said chucking member and a holding member for holding said motor, comprising:elevating means for elevating and lowering said motor, said elevating means including a substantially rectangular first elevating member with said holding member attached thereto and a substantially U-shaped second elevating member being elevated and lowered in unison with said first elevating member, said first elevating member rotatably coupled to said second elevating member at first and second positions;motor positioning means having a guide member for guiding elevation of said motor;operating means for elevating and lowering said motor, said motor coupled to said first elevating member; anda plurality of support shafts for rotatably supporting said first elevating member relative to said second elevating member at said first and second positions, respectively, said plurality of support shafts provided substantially at a center position of opposite sides of said first elevating member, and said second elevating member configured to rotatable hold said support shafts;wherein said operating means is configured to operate said plurality of support shafts to elevate and lower said motor.