| 摘要 |
PROBLEM TO BE SOLVED: To provide a gear change mechanism of a transmission capable of properly preventing twisting of a V-belt in changing gear with a simple constitution, and reducing weights of a rotating shaft and a pulley.SOLUTION: Parallel grooves 11a, 11b are formed by forming a pair of straight grooves on an outer peripheral face of a rotating shaft 10 along an axial direction at a prescribed interval, both ends of the parallel grooves 11a, 11b are respectively connected by a pair of curved grooves 12a, 12b. A first sliding shaft 40a and a second sliding shaft 40b are respectively disposed in the parallel grooves 11a, 11b, a first half body of the pulley and the first sliding shaft 40a are integrated by a first connection pin, a second half body and the second sliding shaft 40b are integrated by a second connection pin, and spherical bodies 60 are tightly put in a groove between the first sliding shaft 40a and the second sliding shaft 40b.SELECTED DRAWING: Figure 2 |
