초록 ▼

A bearing installation for a Floppy Disk Driver motor which is simple in structure and high in accuracy of a rotating action of a rotary shaft, thus hardly impairing the read and write characteristics of a Floppy Disk Driver device. A bearing installation for a Floppy Disk Driver motor includes a pr

A bearing installation for a Floppy Disk Driver motor which is simple in structure and high in accuracy of a rotating action of a rotary shaft, thus hardly impairing the read and write characteristics of a Floppy Disk Driver device. A bearing installation for a Floppy Disk Driver motor includes a protective cap mounted to one side of the motor; a first pivot bearing arranged for free and axial movements on a rotary shaft of the motor relative to the protective cap; a thrust spring urging axially the first pivot bearing on the rotary shaft of the motor; the rotary shaft fixedly mounted on a rotor of the motor, and supported pivotally at one end by the first pivot bearing and at the other end by a second pivot bearing fixedly mounted on a platform on which the motor is installed; a lead screw joined to an outwardly extending portion of the rotary shaft from the motor; and a positioning bushing arranged through which the rotary shaft fixed to the motor extends without direct contact with and closely fitted into a positioning hole provided in a plate to which the motor is secured.

대표청구항 ▼

[ What is claimed is:] [1.] A bearing installation in a floppy disk drive motor comprising:a protective cap mounted to one side of the motor;a first pivot bearing having a base provided with a recess where one end of a rotary shaft is pivotally accepted, said first pivot bearing being arranged for f

[ What is claimed is:] [1.] A bearing installation in a floppy disk drive motor comprising:a protective cap mounted to one side of the motor;a first pivot bearing having a base provided with a recess where one end of a rotary shaft is pivotally accepted, said first pivot bearing being arranged for free and axial movements on the rotary shaft of the motor relative to the protective cap;a thrust spring urging the first pivot bearing axially of the rotary shaft of the motor;the rotary shaft fixedly mounted on a rotor of the motor, and supported pivotally at the one end by the first pivot bearing and at the other end by a second pivot bearing fixedly mounted to a platform on which the motor is installed;a lead screw to move a magnetic head threaded to an outwardly extending portion of the rotary shaft from the motor;a positioning bushing located between the two pivot bearings, arranged through which the rotary shaft extends without direct contact with the positioning bushing and closely fitted into a positioning hole provided in a plate to which the motor is secured; anda flange portion disposed around said base, said flange portion being directly supported by the thrust spring.