| 摘要 |
PROBLEM TO BE SOLVED: To provide a wheel core which can secure easily a bonding mode with a core assembled and contribute to simplification in a forming step.SOLUTION: A wheel core 10 includes a rim-part core 20 formed annularly with a nearly C-shaped press part, a boss-part core 30 arranged on the central axis of the rim-part core 20 and a plurality of spork-part cores 40 and 50 connecting the rim-part core 20 to the bos-part core 30. A first spork-part core 40 is provided integrally, in a radial-direction outer peripheral part, with a first gripping connection member 46 which grips both of the nearly C-shaped tip parts 22 and 24 of the press part while connecting them together by a technique other than welding. |
