Frictional transmission chain.

摘要

An improved frictional transmission chain is provided wherein the transmission of torque forces between pulleys relies upon an endless transmission chain formed from link plates and link plate connection pins. The chain comprises a plurality of frictional V blocks, each having inner and outer lateral surfaces, the inner lateral surfaces having holes therein for receiving opposite ends of at least one of the connection pins, and the outer lateral surfaces forming substantially V-shaped inclined surfaces. Frictional transmission contact surfaces project radially from the outer inclined lateral surfaces, in a transversely symmetrical configuration, with respect to a V-groove pulley with which the transmission chain is adapted to tightly frictionaily engage by means of the V blocks. Power is transmitted along the chain only by the link plates and connection pins of the endless chain, each of the V blocks transmitting power only between its respective one connection pin and the pulley.