Switching bearing assembly for a motor-driven spindle

Details Switching bearing assembly for a motor-driven spindle Switching bearing assembly for a motor-driven spindle

1977-03-17

1978-09-19

Herrmann, Allan D.

192 clutches and power-stop control

Stop mechanism

Overload release

188 83, 188 85, 192141, 192143, 200 47, 200158, F16D 7100, F16D 6300

Patent

active

041147472

ABSTRACT:
A switching bearing assembly for a motor-driven spindle, e.g. a leadscrew adapted to drive a nut axially along the leadscrew, is provided with a bearing housing disposed between two fixed plates and biased centrally thereof by a plurality of compression springs. The housing is positioned to actuate switches which turn off the motor when the spindle bearing is overloaded, e.g. when the nut reaches the end of its travel or is otherwise impeded in its first axial movement. The housing is also provided with a spring-biased pin which bears upon an eccentric carried by the shaft to frictionally retard further rotation thereof once the motor has been turned off.

REFERENCES:
patent: 643286 (1900-02-01), Feiker
patent: 2249297 (1941-07-01), Muffett
patent: 3369087 (1968-02-01), Eller
patent: 3651906 (1972-03-01), Slator
patent: 3682283 (1972-08-01), Sato
patent: 3957144 (1976-05-01), Opyrchal

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