Motor and storage disk drive apparatus
A technology for a motor and a bearing bush, which is applied in the field of electric motors, can solve problems such as reducing the manufacturing cost of the motor, and achieve the effect of preventing the center axis from becoming larger.
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no. 1 approach
[0036] figure 1 It is a cross-sectional view of the recording disk drive device according to the exemplary first embodiment of the present invention. The recording disk drive device 10 has a motor 1 , an access unit 11 , and a box-shaped case 12 that accommodates them therein. The motor 1 is a slender motor with a height of several millimeters to more than ten millimeters. In the motor 1 , a clamp 5 described later is fitted into a central hole 91 of the recording disk 9 , and the recording disk 9 is fixed by the clamp 5 . The access unit 11 has a magnetic head 111 and a magnetic head moving mechanism 112 . The magnetic head 111 is an optical pickup mechanism for reading and / or writing information on the recording optical disk 9 . As the recording optical disc 9, for example, a Blu-ray Disc is used. Other types of optical discs may also be utilized.
[0037] The magnetic head moving mechanism 112 moves the magnetic head 111 relative to the motor 1 and the recording disk 9...
no. 2 approach
[0087] Figure 16 It is a figure showing the operation of fixing the pulling-out prevention member of the motor of the second embodiment to the rotor yoke. The motor according to the second embodiment has a pull-out preventing member 6a formed of resin. In the pull-out prevention part 6a, as Figure 4 to Figure 6 Instead of the upper projections 621 of the pullout protection part 6 shown, there are three rod-shaped upper projections 622 . In FIG. 26 , the upper protrusion 622 is indicated by a dashed-two dotted line. Other shapes are the same as the pull-out prevention component 6 . Other structure of the motor and figure 2 The motor 1 is the same. Hereinafter, the same reference numerals will be assigned to the same configurations and will be described.
[0088] When assembling the motor, first, resin is poured into a cavity formed into a predetermined mold to mold the pulling-out preventing member 6a ( Figure 10 : Step S1). Simultaneously with the molding of the pu...
no. 3 approach
[0095] Figure 17 It is a figure which shows the motor concerning 3rd Embodiment. In the optical disc drive device equipped with the motor 1a, the optical disc 9 is inserted into and taken out from the housing while being placed on a movable tray provided in the housing of the optical disc drive device.
[0096] A disc holding portion 5 a is provided at the center of the upper portion of the disc mounting portion 411 by injection molding of resin. The disc holding portion 5a has a plurality of claws 55 extending downward from the upper peripheral portion. Furthermore, a cutout portion 56 is provided between the plurality of claws 55 in the circumferential direction and at the lower portion of the disc holding portion 5a. A clamp magnet 57 and a clamp yoke 58 are also provided on the disc holding portion 5a. In the rotation part 4, the upper protrusion part 621 of the removal prevention member 6 is provided in the position which overlaps with the notch part 56 in the directi...
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