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Adjustable kingpin assembly

  • US 4,243,339 A
  • Filed: 04/09/1979
  • Issued: 01/06/1981
  • Est. Priority Date: 04/09/1979
  • Status: Expired due to Term
First Claim
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1. An adjustable kingpin assembly comprising;

  • a yoke with a first and second arm spaced apart from each other, each arm having a hole therethrough;

    a knuckle support operably attached to a supportive member of a vehicle;

    said knuckle support sized to fit within the space between the two arms and having an aperture extending therethrough and aligned with said holes in the two arms;

    a sleeve rotatably fitting within the aperture through the knuckle support;

    said sleeve having an aperture extending therethrough from a top opening in the top end to a bottom opening in the bottom end of said sleeve;

    said aperture through said sleeve being angled with respect to the axis of said aperture through said knuckle support;

    a kingpin sized to extend through said angled aperture and having its ends rotatably received in said holes of said arms of said yoke for rotatably mounting said yoke to said knuckle support;

    said sleeve rotatably mounted within said aperture of said knuckle support to angle said kingpin with respect to the normal axis of said aperture through said knuckle support, said kingpin assembly constructed to angle said yoke with respect to said knuckle support for adjusting said camber or castor;

    locking means for locking said sleeve in said aperture of said knuckle support for fixedly mounting said yoke at a selected camber or castor with respect to said knuckle support;

    said locking means comprising;

    said knuckle support having a horizontal aperture therethrough forming a horizontal groove at a side of said vertical aperture through said knuckle support;

    a plurality of horizontal grooves on the outer surface of said sleeve laterally displaced about the sleeve and alignable with said aperture in said knuckle support;

    each groove intruding into the angled aperture through said sleeve to form a horizontal slot;

    said kingpin having a horizontal groove alignable with one of said horizontal slots when said kingpin is received in said angled aperture;

    a lug sized to extend through said horizontal aperture and fitting snugly within said aligned grooves and extending radially through said corresponding slot to fit within said groove in said kingpin to lock the kingpin, sleeve, and knuckle support fixedly together.

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