US PATENT SUBCLASS 476 / 48
.~ With condition responsive means to vary contact pressure


Current as of: June, 1999
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476 /   HD   FRICTION GEAR TRANSMISSION SYSTEMS OR COMPONENTS

47  DF  STEPLESS RATIO CHANGE {4}
48.~ With condition responsive means to vary contact pressure


DEFINITION

Classification: 476/48

With condition responsive means to vary contact pressure:

(under subclass 47) Subject matter including means to sense a condition or change of condition in the environment of said friction gear transmission; and, in response to such sensing, said means act to increase pressure of frictional contact between said rotary motion transmitting parts. [figure] [caption]In an infinitely variable transmission with torque transmitting elements, an arrangement is provided for producing shifting of one of the frictional members in acccordance with the torque. The arrangement is allowed to slip in order to prevent the exertion of overpressure by limiting the movement of the part which is shifted in dependence on the torque.

SEE OR SEARCH THIS CLASS, SUBCLASS:

37, 41 and 61+, for other friction gearing transmissions having condition responsive means to vary contact pressure of the gears.