Spoke type- and spoke cap structure for reducing breakage probability of spoke screw thread in e.g. bicycle, has convex portion positioned in proximity of threaded part at main body for allowing cohesion at connection of spokes with cap

摘要

The structure (1) has a head portion (12) and a threaded part (13) integrally formed at two ends of a spoke main body (21). The threaded part is provided with a screw thread portion having predetermined length. A circular convex portion is properly positioned in proximity of the threaded part at the spoke main body for allowing close cohesion at a connection of spokes with a spoke cap (2). Inner diameter of a large hole corresponds to inner diameter of an unthreaded portion. Inner diameter of a small hole corresponds to inner diameter of another threaded part (231).