SWING ARM STRUCTURE FOR SADDLE RIDING TYPE VEHICLE

摘要

A structure promoting a reduction in size and weight of a swing arm structure. Pivot shafts that extend in a vehicle width direction are disposed in the vehicle body frame. A pair of wall portions is disposed in the vehicle width direction in the vehicle body frame. An interposed portion is disposed between the wall portions in the swing arm. The wall portions have wall portion-side pass-through portions, which receive the pivot shafts passed therethrough. The interposed portion has interposed portion-side pass-through portions formed therein at, out of both end portions in the vehicle width direction, portions facing the wall portion-side pass-through portions, respectively. The interposed portion-side pass-through portions receive the pivot shafts, respectively, passed therethrough. The interposed portion has a non-pass-through portion formed therein at least at a middle portion in the vehicle width direction of the interposed portion. The non-pass-through portion does not receive the pivot shafts.

主权项

1. A swing arm structure for a saddle riding type vehicle, the saddle riding type vehicle including a vehicle body frame and a swing arm supported vertically swingably on the vehicle body frame, the swing arm structure comprising:
a pivot shaft disposed in the vehicle body frame, the pivot shaft extending in a vehicle width direction; a pair of wall portions disposed in the vehicle width direction in one of the vehicle body frame and the swing arm; and an interposed portion disposed between the wall portions in the other of the vehicle body frame and the swing arm, wherein at least one of the wall portions has a wall portion-side pass-through portion formed therein, the wall portion-side pass-through portion receiving the pivot shaft passed therethrough, the interposed portion has an interposed portion-side pass-through portion formed therein at, out of both end portions in the vehicle width direction, a portion facing the wall portion-side pass-through portion, the interposed portion-side pass-through portion receiving the pivot shaft passed therethrough, and the interposed portion has a non-pass-through portion formed therein at least at a middle portion in the vehicle width direction of the interposed portion, the non-pass-through portion not receiving the pivot shaft.