| 摘要 |
The present invention provides a clutch drum (7) being a part of a centrifugal clutch (4) for an internal combustion engine (1). The centrifugal clutch (4) is arranged to transmit a rotational motion of a crank shaft (2) at higher engine speed and to declutch at lower engine speed. The clutch drum (7) includes a peripheral portion (8), with thickness B, which is arranged to be engaged on the inside by weighted arms of a driving disc (5) at higher engine speed and the clutch drum further includes an end portion (9), with thickness A, joining a drum hub (13) and the peripheral portion (8), and the thickness A is less than the thickness B. |
