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Apparatus for determining the position of a fifth wheel on a multi-axle vehicle

  • US 4,649,369 A
  • Filed: 09/13/1985
  • Issued: 03/10/1987
  • Est. Priority Date: 09/13/1985
  • Status: Expired due to Fees
First Claim
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1. An apparatus for identifying the position of the movable plate portion of a fifth wheel apparatus useful on a multiple axle vehicle relative to the fixed rail portion thereof to which the movable portion can be locked, the apparatus comprising:

  • means for recognizing successive lockable positions of said movable portion relative to said fixed portion;

    means for counting the successively recognized positions as said movable portion and said fixed portion move relative to each other; and

    means for setting said counting means to a known base value when said movable portion of the fifth wheel apparatus is in a known position relative to said fixed portion, so that the relative position of the movable portion and the fixed portion is known during relative movement of the fixed portion and the movable portion.

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