JPS56101448A - Frictional transmission device - Google Patents

Abstract

PURPOSE: To enable transmission of large power from a driving body to a follower body while standing a high load by bearing the load which the driving body and the follower body give to a rotary body with a ring-shaped pressure-bearing race.

CONSTITUTION: A retaining shaft 24 is constantly actuated on the side of one end by a spring 26 positioned between the same and a hollow shaft part 4, while a flange 25 is constantly engaged with the arm 23 of a centrifugal governer 22. One end of the retaining shaft 24 supports the ring-shaped pressure-bearing race 28 through the intermediary of a ball bearing 27. With the outer periphery 29 of the pressure- bearing race 28 contacts a spherical body 7, which is the rotary body, in the pressed condition, while the outer periphery 29 of the race 28 is formed into a curved surface whose distance between the outer diameter 29 and an axial line, i.e. the outside diameter thereof increases gradually toward the one-end side along the axial line. In addition, a spring 13, concavities 15 and 16 and balls 17 constitute a pressing-force setting mechanism 18.

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