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SUSPENSION ARM FOR AUTOMOBILE

  • US 20150001826A1
  • Filed: 06/25/2014
  • Published: 01/01/2015
  • Est. Priority Date: 06/26/2013
  • Status: Active Grant
First Claim
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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.

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