| 摘要 |
PROBLEM TO BE SOLVED: To improve the comfort performance of an airless tire.SOLUTION: A spoke coupling a tread ring 2 and a hub 3 together includes a plurality of spoke pieces 10 arrayed in a circumferential direction. Each spoke piece has a tread coupling part and a hub coupling part on a radially extending reference line, and a spoke curve part 13 formed therebetween to shift from the circumferential direction and extend in a curved shape. On a coordinate system around a tire axis where a vertical line vertically rising from the tire axis is 0°, the spoke piece at 0° has a radial straight line length LSb in a reference load applied state set 1.05 times or more than a radial straight line length LSa in a non-load state, and a radial curve length LLb in the reference load applied state set 1.03 times or more than the straight line length LSb.SELECTED DRAWING: Figure 4 |
