Scanner motor coupled with a polygon mirror

Details Scanner motor coupled with a polygon mirror Scanner motor coupled with a polygon mirror

1997-11-24

1999-06-08

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310 90, 310 89, H02K 700, H02K 516, H02K 500

Patent

active

059106930

ABSTRACT:
A scanner motor coupled with a polygon mirror is improved for coupling the polygon mirror to a housing via a push fit while a pressive pushing force is absorbed into the housing without being imposed upon the polygon mirror, and further for decreasing the number of parts and deleting manufacturing process and man-hour to enhance productivity and economize cost. The scanner motor includes a stator assembly placed to a lower portion of the scanner motor and fixed to a plate having a prescribed inner diameter in the center portion thereof, a cylinder part erectly installed upward in the hole at the center of the plate, a motor shaft extending to be longer than an upper end of the cylinder part and erectly installed to the center of the cylinder part by interposing a bearing, a housing having a lower side portion being a reference plane to be placed with the polygon mirror and an upper side portion erectly installed to the upper portion of the lower side portion for being inserted into the upper outer periphery of the motor shaft, a fitting portion erectly installed to the housing to be thin and be formed with a hollowed groove along the outer periphery of the upper side portion by being spaced apart therefrom, and the polygon mirror push-fitted into the outer periphery of the fitting portion with a pressive pushing tolerance, so that the polygon mirror is fixed via the push fit without requiring separate fixing means.

REFERENCES:
patent: 5325006 (1994-06-01), Uno et al.

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