| 摘要 |
PURPOSE: To aim at a compact size of a connecting part, and also reduction of vibration owing to accurate centering, when a fly wheel and a driving shaft are coaxially connected to the shaft end part of a crank shaft. CONSTITUTION: A flange part 112 formed on the inner circumferential surface of a fly wheel 11 is faucet-fit (A) to the shaft end part of a crank shaft 9, and also a spline piece 44 is faucet-fit (B) to the inner circumferential surface 1123 of the fly wheel 11, the flange part 112 of the fly wheel 11 and the flange part 441 of the spline piece 44 are fastened together to the shaft end part of the crank shaft 9. The upper end of a driving shaft 12 is spline-fitted (C) to the vertical shaft connecting part 442 of the spline piece 44 to be housed in the inner hole 92 of the crank shaft 9. |
