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Automatic de-rate operating system and method for a truck mounted crane

  • US 10,077,174 B1
  • Filed: 04/21/2015
  • Issued: 09/18/2018
  • Est. Priority Date: 04/21/2015
  • Status: Active Grant
First Claim
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1. A crane mountable on a service body of a truck, the crane comprising:

  • stationary metal targets located about a base of the crane and arranged to approximate rotational outer ranges of a first and a second reduced lift zone, the first reduced lift zone being along a first side of the truck and the second reduced lift zone being located along a second side of the truck;

    a crane controller in communication with the crane, the crane controller including;

    an inductive proximity sensor connected to a crane pedestal and arranged to detect the stationary metal targets; and

    a microprocessor with a set of computer executable instructions stored on non-transitory computer readable medium, the microprocessor arranged to receive a target detection signal from the inductive proximity sensor and send a stop rotation signal to the crane;

    wherein the crane is prevented from rotating into the first and second reduced lift zones.

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