Patent ID: 9738130
Date: 2017-08-22
CPC Classifications: B60G

Claim:
1. A suspension arm, which includes an arm body having a longitudinal shape, a wheel-side attachment portion that is disposed at one end of the arm body, and a vehicle body-side attachment portion that is disposed at the other end of the arm body, and which is mounted near a drive shaft so as to extend in a lateral direction of a vehicle, the arm body including an overlap portion that overlaps the drive shaft as viewed from a front in a longitudinal direction of the vehicle, a weak portion having lower strength than the overlap portion being provided between the overlap portion and the wheel-side attachment portion, the arm body having a hollow longitudinal shape, and portions on both sides of the weak portion being quenched by high frequency heating so as to have high strength, such that the weak portion is partially provided at an intermediate position between the overlap portion and the wheel-side attachment portion.