Two speed axle

Machine element or mechanism – Gearing – Interchangeably locked

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

74473R, B60K 2010, B60K 2000

Patent

active

047458224

ABSTRACT:
A low power electric motor slowly leads a spring, which rapidly operates a two speed axle shift. An electric motor drives a nonreversing worm gear which engages a gear rack on a shaft. The shaft supports a caged spring. The motor moves the shaft, compressing the spring against one end of the cage, storing energy required for shifting. A solenoid piston holds the cage in position. When the shift is desired, the solenoid is tripped, the piston is raised and the spring moves the cage. An arm on the cage moves the shift lever. The solenoid piston engages the opposite detent in the cage and holds the cage in the new position. As the cage arrives at the new position, a lug trips a microswitch which completes a circuit to operate the motor in the reverse direction. The motor worm slowly drives the gear which slowly drives the rack to move the shaft in the reverse direction, compressing the spring against the opposite end of the cage. When the shaft moves sufficiently to fully load the spring, a lug on the shaft trips the switch turning the motor off. The next pulsing of the solenoid causes the spring to drive the cage in the opposite direction, back towards its first position, where the solenoid locks the cage. A lug in the cage trips the switch, turning the motor on to run in a forward direction, driving the shaft to its original position and compressing the spring until a lug on the shaft engages a switch, turning the motor off.

REFERENCES:
patent: 1129762 (1915-02-01), Townsend
patent: 1874995 (1932-08-01), Heinauer
patent: 2634622 (1953-04-01), Cripe
patent: 2655042 (1953-10-01), Almond
patent: 2695531 (1954-11-01), Thomas et al.
patent: 2806689 (1957-09-01), Miller
patent: 2909940 (1959-10-01), Dawkins
patent: 2984065 (1961-05-01), Stuhler
patent: 3062071 (1962-11-01), Morrow
patent: 3652815 (1972-03-01), Davies
patent: 3773995 (1973-11-01), Davies
patent: 3808895 (1974-05-01), Fitzwater
patent: 3894442 (1975-07-01), Hembree
patent: 3908473 (1975-09-01), Bussen et al.
patent: 3998110 (1976-12-01), O'Brien et al.
patent: 4022077 (1977-05-01), Brewer et al.
patent: 4203573 (1980-05-01), Boss
patent: 4428248 (1984-01-01), Broucksou et al.
patent: 4444072 (1984-04-01), Grimes et al.
patent: 4449416 (1984-05-01), Huitema
patent: 4454776 (1984-06-01), Barge
patent: 4479357 (1984-10-01), Stewart
patent: 4619151 (1986-10-01), Trachman et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Two speed axle does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Two speed axle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two speed axle will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1052522

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.