Magnetic disk drive

摘要

A movable member 35 is moved back or forth by a motor 33. A carriage opening/closing member 41 which vertically guides a pair of projections 40 opposingly formed on opposed faces is disposed between upper and lower carriages 36 and 37 which are elastically supported on the movable member 35 and vertically opposed to each other. Reading/writing heads 19 which are opposingly disposed on the opposed faces of the upper and lower carriages 36 and 37 are separated from magnetic data recording surfaces 7 of a magnetic data recording medium 6. When the carriage opening/closing member is moved in a direction opposite to the above, the upper and lower reading/writing heads 19 are contacted with the magnetic data recording surfaces 7 by a predetermined load pressure.