| 摘要 |
PROBLEM TO BE SOLVED: To provide the shaft structure of a transmission enhanced in flexural rigidity in the boundary portion of two gear cylindrical bodies fitted to a shaft. SOLUTION: In the shaft structure of a transmission 1, the gear cylindrical bodies 43a and 44a, on the outer peripheries of which the gears (21, 22) and (23, 19) are formed, are fitted to the shaft 42 pivotally supported in a transmission case 2 so as to make a plurality of rotations impossible. A recess 56 is formed on one of the faces 53 and 55 of the adjacent gear cylindrical bodies 43a and 44a facing each other and a projection 54 is also formed on the other so as to surround the shaft 42, respectively. Then, the projection 54 is press inserted into the recess 56 to perform a faucet coupling of the cylindrical bodies 43a and 44a, thus improving the flexural rigidity in their boundary portion 52. |
