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Gaged plate transducer weighing apparatus

  • US 4,506,746 A
  • Filed: 09/27/1982
  • Issued: 03/26/1985
  • Est. Priority Date: 09/27/1982
  • Status: Expired due to Term
First Claim
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1. A strain gage weighing apparatus having upper and lower horizontal members arranged in substantially parallel planes relative to each other, said upper horizontal member comprising platform means for receiving a load to be weighed, said lower horizontal member comprising strain gage transducer beam means for measuring the weight of a load, load transfer means operatively arranged between said upper and lower horizontal members for transmitting vertical force components from the upper horizontal member to the strain gage transducer beam means while substantially preventing the transmission of horizontal force components between said upper and lower horizontal members, and foot means for stabilizing the weighing apparatus, said lower horizontal member comprising at least two elongate elements joined to form said lower horizontal member as a rigid frame structure, said strain gage transducer beam means being constructed as integral parts of said two elongate elements adjacent the ends thereof;

  • said foot means being operatively arranged relative to the ends of said two elongate elements for applying a load representing force to each of the respective integral strain gage transducer beam means through said transfer means from the upper horizontal member to said strain gage transducer beam means, wherein said integral strain gage transducer beam means are spaced from the end of the respective elongate element, each of said transducer beam means having a root end merging into the respective elongate element in the direction of the center of said elongate element and a free end extending in the direction toward the outer end of said elongate element for flexural movement of the integral strain gage transducer beam means relative to said elongate element, said free end of the transducer beam means being spaced from the respective end of the respective elongate element (55) for defining a non-flexural frame element area (56) between the free flexural end (52) of the transducer beam means (50) and the end (54) of said elongate element (55), whereby said transducer beam means (50) is surrounded along all edges thereof by the respective elongate element (55), securing means for securing said foot means to said non-flexural frame element area (56) at the end of said elongate elements (55) outside of the respective transducer beam means (50), and wherein said load transfer means include a bracket between said upper member and the free flexural end (52) of the respective transducer beam means (50) for deforming the latter.

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