| 摘要 |
A left drive shaft (143) and a right drive shaft (144) each include an inside constant velocity joint (191) and an outside constant velocity joint (192) with a ball spline mechanism (193) provided between the inside constant velocity joint (191) and the outside constant velocity joint (192) for enabling the distance between the inside constant velocity joint (191) and the outside constant velocity joint (192) to be contracted and extended. The ball spline mechanism (193) includes a spline shaft (216) having an outer circumferential surface provided with a plurality of axial grooves (222) extending in the axial direction, a tubular portion (213) surrounding the periphery of the spline shaft (216) and having an inner circumferential surface provided with a plurality of axial grooves (221) extending in the axial direction and a plurality of balls (214) capable of rolling while being fitted in the axial grooves (221,222). In addition, a left lower arm (96) and a right lower arm (98) are formed into an A-shape and are supported by a lower part of a rising portion (151) and a lower end of a downwardly extending portion (153) of an under frame (74) via a lower supporting shaft (157). <IMAGE> |
