| 摘要 |
An L-shape vehicular suspension arm includes a unitary body forged from an aluminum alloy. The unitary body includes a web and ribs. The web is substantially planar, and the ribs extend from surfaces of the web at peripheral edges of the web. In cross-section, at least one part of the unitary body has a U-shape, an H-shape, or an inverted U-shape, such that dimensions of the unitary body satisfy expression (1) or (2):;0.05≦(H−Hr)/Hr≦0.25 (1);4≦(H−Hr)/Hr≦19 (2);where H is a total height of the unitary body, and Hr is a height from a center of the web to a lowermost point of the unitary body. |
| 主权项 |
1. An L-shape vehicular suspension arm, comprising a unitary body forged from an aluminum alloy, wherein:
the unitary body has an L-shape when viewed from above, the L-shape comprising a first arm section and second arm section joined at a joint section; the unitary body has a length L, measured from a tip of the first arm section to a tip of the second arm section in a longitudinal direction; the unitary body comprises a ball joint support section at the tip of the first arm section; the unitary body comprises a first bushing support section at the tip of the second arm section; the unitary body comprises a second bushing support section at the joint section; the unitary body comprises a web and ribs arranged between the ball joint support section, the first bushing support section, and the second bushing support section; the web is substantially planar, having a top surface, a bottom surface, and a peripheral edge, the web being arranged in a substantially horizontal plane; each rib extends vertically from the top surface or the bottom surface of the web at the peripheral edge of the web; when viewed in a cross-section perpendicular to the longitudinal direction at a location L/4 or greater from the tip of the first arm section and L/4 or greater from the tip of the second arm section, excepting locations along the longitudinal direction where a rib is interrupted by the second bushing support section, the unitary body has a U-shape, an H-shape, or an inverted U-shape, the web forming the horizontal portions and the ribs forming the vertical portions of the respective shapes; and when viewed in the cross-section perpendicular to the longitudinal direction at the location L/4 or greater from the tip of the first arm section and L/4 or greater from the tip of the second arm section, excepting locations along the longitudinal direction where a rib is interrupted by the second bushing support section, dimensions of the unitary body satisfy expression (1) or (2):
0.05≦(H−Hr)/Hr≦0.25 (1)4≦(H−Hr)/Hr≦19 (2)where H is a total height of the unitary body, and Hr is a height measured from a center of the web in a vertical direction to a lowermost point of the unitary body. |
