The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 12, 2005
Filed:
Dec. 06, 2002
Rajeev Thakur, Lake Orion, MI (US);
Alexander Golshteyn, Southfield, MI (US);
Russ Watts, Ann Arbor, MI (US);
Darren Lee, Canton, MI (US);
Rajesh Das, Clarkston, MI (US);
Rajeev Thakur, Lake Orion, MI (US);
Alexander Golshteyn, Southfield, MI (US);
Russ Watts, Ann Arbor, MI (US);
Darren Lee, Canton, MI (US);
Rajesh Das, Clarkston, MI (US);
Robert Bosch Corporation, Broadview, IL (US);
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.