Measuring and testing – Dynamometers – Responsive to multiple loads or load components
Patent
1986-05-06
1987-06-16
Ruehl, Charles A.
Measuring and testing
Dynamometers
Responsive to multiple loads or load components
7386267, G01L 516, G01L 126
Patent
active
046728554
ABSTRACT:
A device for measuring forces and torque in different directions. The device includes a rigid, round hub and an annular flange that is disposed parallel to the hub. The flange and the hub are connected to one another via four spokes that are arranged in the shape of a cross. The spokes are deformed by a load due to their dimensions. Such a deformation is measured with the aid of elongation-measuring strips, with the hub and flange remaining rigid. The inner ends of the spokes are secured in the hub, while the outer ends are secured to the flange via thin members, the thickness and diameter of which are such that the members yield readily in response to transverse forces and torsion of the spokes about their axes, while tangential displacements are substantially eliminated. The diameter of each member is at least 2.5 times as great as the diameter of the spokes, and the thickness of a given member has an upper limit. Such a device assures a high sensitivity to measurements, and a separation of the load components.
REFERENCES:
patent: 3693425 (1972-09-01), Starita et al.
patent: 3780573 (1973-12-01), Reus
patent: 4138884 (1979-02-01), Ruoff, Jr. et al.
patent: 4448083 (1984-05-01), Hayashi
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