Isolating pulley
View Patent ↗An isolating pulley comprising a hub, a pulley journalled to the hub, a spring carrier journalled to the hub, a torsion spring engaged between the pulley and the spring carrier, a frictionmember engaged between the spring carrier and the hub, the frictionmember comprising a first multiple ribbed surface to engage the spring carrier and a second multiple ribbed surface to engage the hub, and the first multiple ribbed surface and the second multiple ribbed surface extending in a radial direction normal to an axis of rotation A-A.
1. An isolating pulley comprising:
a hub;
a pulley journalled to the hub;
a spring carrier journalled to the hub;
a torsion spring engaged between the pulley and the spring carrier;
a friction member engaged between the spring carrier and the hub, the friction member comprising a first multiple ribbed surface to engage the spring carrier and a second multiple ribbed surface to engage the hub; and
the first multiple ribbed surface and the second multiple ribbed surface extending in a radial direction normal to an axis of rotation A-A.
2. The isolating pulley as in claim 1 , wherein each of the first multiple ribbed surface and the second multiple ribbed surface comprises one or more rings concentric about an axis of rotation A-A.
3. The isolating pulley as in claim 2 , wherein the torsion spring is axially compressed between the pulley and hub.
4. The isolating pulley as in claim 3 , wherein the torsion spring is loaded in an unwinding direction.
5. An isolating pulley comprising:
a hub;
a pulley journalled to the hub;
a spring carrier journalled to the hub;
a torsion spring engaged between the pulley and the spring carrier;
a friction member engaged between the spring carrier and the hub, the friction member comprising a multiple ribbed surface to engage a spring carrier multiple ribbed surface; and
the multiple ribbed surface extending in a radial direction normal to an axis of rotation A-A.
6. The isolating pulley as in claim 5 , wherein the multiple ribbed surface comprises one or more rings concentric about an axis of rotation A-A.
7. The isolating pulley as in claim 6 , wherein the torsion spring is axially compressed between the pulley and hub.
8. The isolating pulley as in claim 7 , wherein the torsion spring is loaded in an unwinding direction.
9. An isolating pulley comprising:
a hub;
a pulley journalled to the hub;
a spring carrier journalled to the hub;
a torsion spring engaged between the pulley and the spring carrier;
a friction member engaged between the spring carrier and the hub, the friction member comprising a multiple ribbed surface to engage a hub multiple ribbed surface; and
the multiple ribbed surface extending in a radial direction normal to an axis of rotation A-A.
10. The isolating pulley as in claim 9 , wherein the multiple ribbed surface comprises one or more rings concentric about an axis of rotation A-A.
11. The isolating pulley as in claim 10 , wherein the torsion spring is axially compressed between the pulley and hub.
12. The isolating pulley as in claim 11 , wherein the torsion spring is loaded in an unwinding direction.