'QUARTER GEAR TYPE' VARIABLE SPEED TRANSMISSION TO ALLOW CHANGE OF GEAR DIAMETER BY CHAIN DRIVE OF QUARTER GEAR CIRCUMFERENCE

摘要

PROBLEM TO BE SOLVED: To obtain the smooth effect of a gear change in a "quarter gear" type variable speed transmission to allow the change of a gear diameter by the chain drive of a quarter gear circumference for a gradual gear change by many fixed gear ratios.;SOLUTION: A double gear 1 and idle gear 2a, 2b and 2c are arranged radially on a secondary gear 3 and connected with a chain 4 which is input-driven by a primary gear. The secondary gear 3 and the double gear 1 are connected by a chain 5 and constituted so that a tension gear is arranged at each chain 5 and 4 and simultaneously driven radially in fan-shape of the double gear 1 and the idle gear 2a, 2b, 2c and the quarter gear type variable speed transmission to allow the diameter change of the gear by the chain drive of a quarter gear circumference which drives simultaneously radially in a fan shape and aims at the diameter change of the gear.;COPYRIGHT: (C)2008,JPO&INPIT