Wheel unit

  • US 4,943,101 A
  • Filed: 02/24/1989
  • Issued: 07/24/1990
  • Est. Priority Date: 02/24/1989
  • Status: Expired due to Term
First Claim
Patent Images

1. A camera dolly having a wheel unit comprising:

  • a ground wheel;

    a track wheel having a diameter less than the ground wheel, said track wheel concentrically attachable to said ground wheel, and said track wheel having an outer contour for rolling engagement with a track said outer contour of said track wheel continuously contacting said ground wheel on one side thereof;

    a king pin for supporting the dolly; and

    an axle joined to said king pin and extending therefrom at a declined angle, with at least one of said ground wheel and said track wheel rotatably attached to said axle.

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