Title:
BRUSHLEESS MOTOR
Document Type and Number:
Japanese Patent JPH04331437
Kind Code:
A
Abstract:
PURPOSE: To prevent the pollution of a rotating polygon mirror by the oil mist scattered from the bearing of a brushless motor where said polygon mirror is mounted.
CONSTITUTION: The apex of a rotor magnet 9 is projected toward a rotary shaft 1 so as to form a ring-shaped flange 9a. A circular projection 5c the top of which faces, leaving slight space, the bottom of ring-shaped flange 9a is provided circularly at the periphery of a bearing bracket 5. It shuts off the air current flowing in the bearing and reduces the scattering of oil mist.
Inventors:
FUKUI SHIGEO
WATANABE KAZUTAKA
WATANABE KAZUTAKA
Application Number:
JP41609090A
Publication Date:
November 19, 1992
Filing Date:
December 28, 1990
Export Citation:
Assignee:
TOSHIBA LIGHTING & TECHNOL CORP
International Classes:
F16J15/40; H02K5/10; H02K5/173; H02K29/00; (IPC1-7): H02K5/10; F16J15/40; H02K5/173; H02K29/00
Attorney, Agent or Firm:
Kazuo Sato (3 others)