| 摘要 |
A suspension arm 1 for a vehicle wheel suspension system is manufactured as a formed sheet-metal part. The suspension arm 1 has at least two connecting points A1 - A3 and a base 2 connecting at least two connecting points A1 - A3, and an impression 4, 5 following the longitudinal extent of the base 2, thus forming inner stiffening limbs 6 running along said impression parallel or approximately parallel to the outer edge of the base 2. Furthermore, the suspension arm 1 comprises a reach-through opening 7 which is provided in the base 2 of the impression 5 and has a collar 8 integrally formed on the base 2. The reach-through opening 7 is located in the region of the impression 4, 5 and has a geometry deviating from the circular cross-sectional geometry. The cross-sectional geometry is formed by a plurality of reach-through opening sections 8.1, 8.2, 8.3, 8.4, the boundary contours of which at least partially differ. At least one of said sections 8.1, 8.2, 8.3, 8.4 is approximate to the profile of the stiffening limb 6 closest thereto or at least partially corresponds thereto. |
