Machine element or mechanism – Alternate manual or power operators
Patent
1980-09-25
1983-02-01
Staab, Lawrence J.
Machine element or mechanism
Alternate manual or power operators
192114R, 192 4891, F16H 3500
Patent
active
043709028
ABSTRACT:
This invention relates to a motorized actuator in which the motor shaft is drivably connected with the output shaft through an intermediate shaft assembly.
The motor shaft assembly includes a worm and wormwheel which is formed with cut-outs each drivably receiving the extended ends of some of the teeth of a pinion which forms part of the intermediate shaft assembly. The pinion is at all times in driving engagement with a gear on the output shaft and is axially movable by a lever to disengage the motor drive so as to allow independent manual operation of the pinion and thereby the output shaft by a handwheel mounted on a shaft. The shaft is drivably coupled with a wormwheel which is in driving engagement with the pinion by means of the driving lugs.
REFERENCES:
patent: 2150213 (1939-03-01), Everett
patent: 2197238 (1940-04-01), Eckenrode
patent: 2203282 (1940-06-01), Keese
patent: 2529660 (1950-11-01), Meyer et al.
patent: 3257866 (1966-06-01), Fry
patent: 3298249 (1967-01-01), Nott
patent: 3603175 (1971-09-01), Horton
patent: 3648546 (1972-03-01), McNamara et al.
patent: 3740146 (1973-06-01), Wilharm
patent: 3863745 (1975-02-01), Fry
patent: 4289223 (1981-09-01), Strehler et al.
Fry Jeremy J.
Smith Peter R.
Rotork Controls Limited
Staab Lawrence J.
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