Drive pulley

Details Drive pulley Drive pulley

1984-03-02

1986-03-11

Leppink, James A.

Endless belt power transmission systems or components

Pulley with belt-receiving groove formed by drive faces on...

Speed responsive

F16H 1106

Patent

active

045753636

ABSTRACT:
A variable ratio drive pulley, of the type employed in snowmobiles to transmit a drive from the snowmobile engine via a belt transmission to the snowmobile track, has a fixed flanged and an opposed movable flange which co-operate to drive the belt. The movable flange is spring loaded away from the fixed flange and centrifugal means are included to overcome the spring force and urge the movable flange towards the fixed flange with a force that increases with the speed of rotation. The centrifugal means comprises a number of pivoted levers each having a roller cooperating with a ramp, and the pulley includes means whereby the position of the ramp can be rapidly adjusted without disassembly of the drive pulley, to vary the response of the drive pulley to different operating conditions.

REFERENCES:
patent: 3230787 (1966-01-01), Siegal
patent: 3597987 (1971-08-01), Kiekhaefer
patent: 3727478 (1973-04-01), Erickson et al.
patent: 3759111 (1973-09-01), Hoff
patent: 3971263 (1976-07-01), Beaudoin et al.
patent: 4052908 (1977-10-01), Takagi et al.
patent: 4095479 (1978-06-01), Lundberg
patent: 4313728 (1982-02-01), Prasad

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