Weighing scales – Structural installation – Vehicle
Reexamination Certificate
2005-07-12
2005-07-12
Gibson, Randy W. (Department: 2841)
Weighing scales
Structural installation
Vehicle
C177S144000, C177S229000, C180S273000, C280S735000, C073S862629
Reexamination Certificate
active
06916997
ABSTRACT:
Automotive load cells having centralized, multi-axis, loose tolerance overload/limit stops provide improved strain gauge response. The modular, integrated stop assemblies magnify sensor substrate deflection by use of opposed concave (Belleville) springs are used in direct contact with the substrate to accommodate ±Z axis deflection and Mx/My moment angular rotation. A flanged guide member on the load stud permits a wide range of geometries. The substrate is thickened around the load stud hole and the outboard support bolt holes. Hollow rivets assist in design modularity. Strain gauges are placed at the yield zones symmetrically with respect to the X axis. The substrate hole Mx/My gap is larger than the stop bracket hole to insure a positive stop for Mx/My moments prior to yield. The inventive multi-axis stop assembly is used in any type load cell, including rectangular, thinned, notched, necked/dogbone, or cantilever substrates with any strain gauge layout configuration.
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Das Rajesh
Golshteyn Alexander
Lee Darren
Thakur Rajeev
Watts Russ
Dulin Jacques M.
Gibson Randy W.
Innovation Law Group
Robert Bosch Corporation
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