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Weighing system

  • US 4,396,079 A
  • Filed: 07/29/1981
  • Issued: 08/02/1983
  • Est. Priority Date: 07/29/1981
  • Status: Expired due to Term
First Claim
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1. In a strain gage-based weighing system comprising a rigid frame, a platform yieldably mounted relative to the frame and adapted to receive on its upper surface the load to be weighed, a sensing beam having a first end rigidly secured to said frame and a second end free to move relative to said frame in response to a load applied to such second end, said sensing beam being resiliently bendable in proportional response to the weight of the load to be weighed, said sensing beam having strain gages secured thereto for generating a signal responsive to the weight of the load, the improved means for transmitting the weight of the load from the platform to the sensing beam comprising:

  • resilient pad means located between the underside of said platform and said free end of said sensing beam, said platform normally resting upon and being supported solely by said pad means, and said pad means in turn transmitting all downward loads applied thereto to said free end of said sensing beam, said pad means being readily compressible within the range of loads to be measured so as to absorb downward impacts applied to the platform, and said pad means having an upwardly opening bore adapted to freely receive downwardly extending locating pin means secured to the underside of said platform, whereby said platform can be lifted relative to said sensing beam without applying any significant load to said sensing beam, and whereby said bore functions to locate and guide said locating pin means and said platform into the desired lateral position relative to said sensing beam.

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