Blow-molded wheels having undercut treads, methods for producing the same, and children's ride-on vehicles including the same

  • US 7,621,543 B2
  • Filed: 08/23/2006
  • Issued: 11/24/2009
  • Est. Priority Date: 08/23/2006
  • Status: Active Grant
First Claim
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1. A children'"'"'s ride-on vehicle, comprising:

  • a body having at least one seat sized for a child;

    a plurality of wheels rotatably coupled to the body, wherein the plurality of wheels includes at least one driven wheel and at least one steerable wheel, wherein at least one of the plurality of wheels is a blow-molded wheel that comprises;

    a blow-molded body having a diameter, a tread surface, first and second sidewalls, a part line, and an axis, wherein the body is configured to rotate about the axis, wherein the tread surface and the part line extend circumferentially around the body and between the first and second sidewalls;

    a first region of the tread surface, wherein the first region is disposed between the first sidewall and the part line of the blow-molded body; and

    a second region of the tread surface, wherein the second region is disposed between the first region and the part line, wherein a first radial distance from the axis to the first region exceeds a second radial distance from the axis to the second region by at least a first predetermined threshold, wherein the first predetermined threshold is greater than the larger of ⅛

    inch and 0.1% of the diameter;

    a steering assembly comprising a steering mechanism adapted to receive steering inputs from a child sitting on the at least one seat, and a steering linkage adapted to convey the steering inputs to the at least one steerable wheel; and

    a drive assembly adapted to selectively drive the rotation of the at least one driven wheel.

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