Motor-contained electric actuator

Details Motor-contained electric actuator Motor-contained electric actuator

2005-06-21

2005-06-21

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

Reexamination Certificate

active

06909214

ABSTRACT:
A small motor in a casing has a motor shaft, which has a worm outside the casing. A worm wheel is rotatably mounted to a housing for a reduction mechanism and meshes with the worm. The motor shaft is supported by radial bearings in the housing, and is supported at the bottom by a thrust bearing thereby simplifying the structure. Furthermore, a rotary disc is fixed to the motor shaft to rotate together with the motor shaft. An angle of rotation of the motor shaft is detected by a rotation detector via the rotary disc and converted to a digital signal by an electronic circuit.

REFERENCES:
patent: 4787245 (1988-11-01), Anderson et al.
patent: 5517070 (1996-05-01), Schmidt
patent: 6476862 (2002-11-01), Tatsumi et al.
patent: 6515399 (2003-02-01), Lauf et al.
patent: 6667562 (2003-12-01), Heinrich

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