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Inductive load weight sensor for controlling brake and audible alarm

  • US 5,099,221 A
  • Filed: 08/20/1991
  • Issued: 03/24/1992
  • Est. Priority Date: 11/28/1988
  • Status: Expired due to Fees
First Claim
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1. Apparatus for indicating the weight of the useful load on a truck having a frame and an axle, said frame being movable relative to said axle and supported on said axle by springs, and a distance detecting device located in the vicinity of said frame and said axle which detects the distance between said frame and said axle and produces a signal through a signal generator in a circuit connected to an initiator when the distance between said frame and said axle has been reduced to an extent corresponding to the weight of the highest permissible useful load, said distance detecting device comprising a linkage secured to said axle and to said frame, through a rod secured to said axle at one end and which has a lengthwise adjustable actuating member connected thereto at the other end and a regulating valve connected to said frame and to said rod by an adjusting lever connected at one end to said regulating valve and pivoted at other end to said rod in the vicinity of said actuating member, said distance detecting device controlling a load dependent hand brake on said truck depending on the distance of movement of said frame relative to said axle, and said lengthwise adjustable actuating member operating and activating said initiator to close said circuit connected thereto and to said hand brake and a battery of said truck and to said signal generator when the distance between said frame and said axle has been reduced to the weight of the highest permissible useful load.

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