Patent ID: 7516675
Filing Date: 2009-04-14
Classification: G01L,G05G

Abstract:
1. A joystick sensor apparatus, comprising: a load cell comprising: an outer circular peripheral frame with an inner central concentric hub area, said load cell having beam members positioned between said central concentric hub area and said outer circular peripheral frame, wherein said inner central area is joined by at least two symmetrical beams, each beam being thinner than said frame and directed along a common diameter wherein a first beam is directed from an inner edge of said peripheral frame to an outer edge of said central area, a second beam is directed along said diameter from an oppositely opposed inner edge of said peripheral frame to an oppositely opposed outer edge of said inner area, a third beam is directed from an inner edge of said peripheral frame to an outer edge of said central area, and a fourth beam is directed along said diameter from an oppositely opposed inner edge of said peripheral frame to an oppositely opposed outer edge of said inner area, said beams being below the top surfaces of said peripheral and central areas and above the bottom surfaces thereof, a joystick coupled to said central hub area and operative when moved to cause said gauges when to be biased and to provide outputs proportional to the X-Y movement of said joystick.