Lever for transmission device

A lever for a transmission device comprising an elongated lever body including a shoe having a front surface adapted for sliding contact with a traveling transmission medium and a support extending longitudinally along the back of the shoe and substantially in a direction opposite to the direction in which the front surface of the shoe faces, said lever body being integrally molded of a synthetic resin, and a metal reinforcing plate held on said support at the center of the width direction of the support and extending longitudinally along the lever body,

• wherein the lever has a fixed part adjacent one end thereof, with a mounting hole at the location of said fixed part for receiving a pivot shaft on which the lever is pivotable, and a movable part adjacent the other end thereof,
• wherein said mounting hole extends through said support and through a through hole in said metal reinforcing plate, and
• wherein a part of said lever body and said metallic reinforcing plate are integrally insert-molded, the metal reinforcing plate being an insert fitting, and a part of the metallic reinforcing plate, between the fixed part of the lever and said other end of the lever, is exposed outside the lever body, whereby the generation of cracks in the lever body as a result of stress due to a difference in the rates of thermal expansion of the lever body and the reinforcing plate is avoided.