SPEED REDUCTION AND SPEED INCREASE MECHANISM SELF-OPERATED CONTROL TYPE-FULLY AUTOMATIC CONTINUOUSLY VARIABLE TRANSMISSION

摘要

PROBLEM TO BE SOLVED: To form a simple structure to continuously variably change the gear ratio by adding a mechanism to mechanically control a torque change on the input-output side by itself, and automatically controlling variable actuation by itself by a speed reduction-speed increase mechanism by self-operated driving of a sun gear. ;SOLUTION: A rotation input member 2, a driving gear 3, an input rotation transmitting cylinder shaft 11 and a planetary gear support frame 12 of a planetary gear 8, integrally rotate in the center of a chassis fixing shaft 1, and an output side planetary gear support frame 10 of a speed change planetary gear 4 and a control planetary gear support frame 16 of a control planetary gear 14 rotate, and a sun gear driving gear 5, a sun gear driving cylinder shaft 6 and a sun gear 7 integrally rotate. Therefore, driving control of the speed change planetary gear 4 in respective rotation areas is obtained, and the sun gear 7 is rotatably driven, and in the initial stage of input and at output side load large time, the speed reducing action is obtained, and at load reducing time, the speed increasing action is obtained, Variable driving control of torque allocation on the input-output side is performed, and speed of the sun gear 7 is reduced up to the same speed rotation area of 1 to 1 of an input member 2 and a support frame 10, and speed is increased from 1 to 1 in a speed increasing rotation area by reverse rotation driving of the sun gear 7, and an automatic continuously variable speed change is obtained.;COPYRIGHT: (C)1998,JPO