Rotary polygonal mirror driving apparatus

Details Rotary polygonal mirror driving apparatus Rotary polygonal mirror driving apparatus

1998-12-22

2000-07-11

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

384100, H02K 500

Patent

active

060877499

ABSTRACT:
A rotary polygonal mirror driving apparatus comprises a rotor to which a driving magnet is attached, a stator disposed opposite to the driving magnet, a rotary polygonal mirror having a center hole through which a portion of the rotor is mounted so that it is mounted on a mirror mounting portion of the rotor and a cap is fixed to the rotor so that the rotary polygonal mirror is pushed in a thrust direction to be fixed onto the rotor. A top annular groove and a bottom annular groove concentric with the center hole are provided, which are cut in top and bottom surfaces in a mutually overlapping area radially further out than the mirror portion of the rotor.

REFERENCES:
patent: 3936682 (1976-02-01), Gates
patent: 4860611 (1989-08-01), Flanagan et al.
patent: 4934836 (1990-06-01), Tanaka et al.
patent: 5097164 (1992-03-01), Nakasugi et al.

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