Uni-directional transmission with positive engagement and diseng

Details Uni-directional transmission with positive engagement and diseng Uni-directional transmission with positive engagement and diseng

1994-09-08

1996-05-14

Pitts, Andrea L.

192 clutches and power-stop control

Clutches

Velocipede free wheel

3011105, F16D 4124

Patent

active

055159575

ABSTRACT:
Disclosed herein is a uni-directional transmission with positive engagement and automatic disengagement features. The transmission includes a rotatable drive shaft coaxially aligned and housed inside a rotatable hub. Attached to the drive shaft is a uni-directional friction clutch which automatically engages when the drive shaft is rotated in a forward direction. When the friction clutch is engaged, a spline disc located on the drive shaft is forced axially on the drive shaft causing the axially aligned teeth formed on one surface of the spline disc to positively engage the complimentary-shaped, axially aligned teeth formed on the ratchet surface on the hub. When the teeth on the ratchet surfaces are engaged, torque from the drive shaft will be transferred to the hub. A coil spring is disposed on the drive shaft between the spline disc and the hub which acts to automatically disengage the ratchet teeth on the spline disc and the hub when rotation of the drive shaft is stopped or reversed.

REFERENCES:
patent: 3010553 (1961-11-01), Van Der Plas
patent: 3166171 (1965-01-01), Schwerdhofer et al.
patent: 3182529 (1965-05-01), Schwerdhofer
patent: 4593799 (1986-06-01), Ozaki
patent: 4711331 (1987-12-01), Hoffmann
patent: 4840084 (1989-06-01), Durham
patent: 4840260 (1989-06-01), Josereau
patent: 4913500 (1990-04-01), Wauke et al.
patent: 5125489 (1992-06-01), Cha
patent: 5163740 (1992-11-01), Kawai et al.
patent: 5188205 (1993-02-01), Karp et al.
patent: 5322487 (1994-06-01), Nagano

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