Optical encoder device for small-sized motor and method of...

Details Optical encoder device for small-sized motor and method of... Optical encoder device for small-sized motor and method of...

2005-09-26

2008-08-19

Epps, Georgia Y. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C356S616000, C356S617000, C341S013000, C341S031000, C033S00100V

Reexamination Certificate

active

07414238

ABSTRACT:
An optical encoder device for a small-sized motor has a code wheel attached to a motor shaft which extends to the exterior of the motor through a bearing accommodated in a bearing-retaining section provided on an end bell of the motor, and a board on which a photosensor module is mounted such that an optical modulation track portion of the code wheel is positioned and disposed in a gap of the photosensor module. While a spacer is sandwiched between the end bell and the board, the motor, the spacer, and the board are fixed together by soldering a pair of motor terminals to a printed wiring portion of the board. The spacer has a generally U-shaped structure so as to allow fitting in position thereof from a direction orthogonal to the motor shaft.

REFERENCES:
patent: 3693023 (1972-09-01), Wasserman
patent: 3894232 (1975-07-01), Laspesa
patent: 1 324 475 (2003-07-01), None
patent: 63-185523 (1988-11-01), None
patent: 7-16566 (1995-03-01), None
patent: 53-143009 (1998-04-01), None
patent: 2002-357457 (2002-12-01), None
patent: 2003-014497 (2003-01-01), None
patent: 2003-199297 (2003-07-01), None

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