| 摘要 |
To restrain an increase in the numbers of components and process steps and achieve an easy mounting and dismounting of a pivot shaft (35). An arm supporting member (108) includes a pair of left and right plate members (14,15), a middle cross pipe (101) extending between the plate members (14,15) and a center pivot plate (105) mounted to the middle cross pipe (101). A pivot shaft (35) is supported by one of the plate member (15) and the center pivot plate (105), and a drive shaft (132) is arranged between the other plate member (14) and the center pivot plate (105). The middle cross pipe (101) is arranged above the pivot shaft (35) on a front portion of a vehicle. The center pivot plate (105) is provided with an upright wall (146c) as a receiving portion for aiding the positioning of the bearing member (120) by receiving the bearing member (120), more specifically, the collar (117) when assembling the swing arm (36) to the center pivot plate (105) and the plate member (15). |
