Motor mounting structure and disk drive

Abstract

A motor mounting structure for mounting a spindle motor (15) supported on a motor base (32) on a chassis (13), wherein the motor base (32) and the chassis are connected through at least three connection parts (33), at least two connection parts are fixed pivotally supporting parts (33a) for fixing a distance between the motor base (32) and the chassis (13) at a constant, the other connection parts are adjustably supporting parts (33b) allowing the distance between the motor base (32) and the chassis (13) to be adjusted, and a rigidity holding means for holding the motor base (32) and the chassis (13) in rigid state is installed on the adjustably supporting parts (33b).

Description

technical field [0001] The present invention relates to a mounting structure of a motor mounted relative to a frame and a disk drive device using the mounting structure, more specifically, to a motor that is easy to adjust the angle of the frame relative to, and at the same time, can reliably adjust its mounting angle. The retained motor mounting structure and the disk drive device using this mounting structure. Background technique [0002] A disk drive device that writes information to or reads information recorded on a disk-shaped recording medium uses an optical pickup that emits or receives laser light to read or write information. In such a disk drive device, in order to write or read accurate information on or from the disk-shaped recording medium, the optical axis of the optical pickup and the signal recording surface of the disk-shaped recording medium must be in a correct orthogonal state. [0003] However, to adjust the angle of the optica...

AI Technical Summary

Problems solved by technology

[0007] However, in the adjustment of the guide shaft like the former above, since only two adjustments in the tangential direction and radial direction are performed by this adjustment, when one adjustment screw is turned, the optical axis is adjusted in the radial direction and the tangential direction. They are all tilted. After one adjustment screw is adjusted, other adjustment screws must be adjusted, and then other adjustment screws must be adjusted. There is a problem of difficulty in deflection adjustment.

[0008] Moreover, the skew adjustment must be performed separately for the case where the optical pickup is positioned on the inner peripheral side and the outer peripheral side of the disc-shaped recording medium, making skew adjustment more difficult.

[0009] In addition, since the guide shaft is longer in the radial direction of the disc-shaped recording medium, when adjusting the radial direction, to make the guide shaft tilt at a specified angle, it is necessary to increase the amount of screwing in or out of the adjustment screw in the up and down direction. , the adjustment amount (displacement amount) in the vertical direction increases with respect to the displacement amount of the inclination angle, and the thinning of the disk drive device cannot be realized.

[0010] Moreover, in the case of adjusting the angle of the spindle motor relative to the frame in the latter case, since there is an elastic member such as a coil spring in the mounting structure of the motor substrate relative to the frame, and the spindle motor becomes a vibration source, a problem of vibration occurs. , cannot be stably and reliably installed relative to the rack

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