Flyweight with a lateral knob

Details Flyweight with a lateral knob Flyweight with a lateral knob

F - Mech Eng,Light,Heat,Weapons

16

H

F16H 55/56 (2006.01)

Patent

CA 2155909

The driving pulley is used in a variable-speed belt drive, which comprises, in particular, two radially converging ramps facing each other and coaxial to a shaft, one ramp being rigidly attached to a movable flange and the other ramp being rigidly attached to the shaft in spaced relationship with the movable flange. A plurality of sliding flyweights are symmetrically disposed around the shaft and radially movable between the ramps. The improvement in the driving pulley is that each ramp comprises a contact surface on which the flyweights are in contact wherein at least one contact surface is curved. Each flyweight also comprises a lateral knob engaged with the curved contact surface for ensuring that the contact point of the sliding flyweights with a curved contact surface does not substantially change as the flyweights slide.

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