Torque sensor

Details Torque sensor Torque sensor

1995-11-20

1997-04-01

Chilcot, Richard

Measuring and testing

Dynamometers

Responsive to torque

73862321, G01L 300

Patent

active

056168497

ABSTRACT:
A torque sensor is provided which does not easily generate hysteresis in an output curve from a sensing device thereof and in which abnormality in detecting the rotational torque can therefore be prevented. An input shaft and an output shaft are connected to each other through a torsion bar. An actuator portion, having a semicircular cross sectional shape, and a stopper are, such that a predetermined interval is maintained, provided for a first mounting frame integrally formed with the input shaft. A sensing device comprising of a slide-operation-type variable resistor is secured to a second mounting frame integrally formed with the output shaft. A lever provided for the sensing device and having a circular cross sectional shape is caused to project between the actuator portion and the stopper. Moreover, the sensing device includes a restoring spring for urging the lever in one direction so that the elasticity of the restoring spring realizes point contact between the actuator portion and the lever;

REFERENCES:
patent: 3691825 (1972-09-01), Dyer
patent: 4320317 (1982-03-01), Bowey
patent: 5280729 (1994-01-01), Aoki et al.
patent: 5377550 (1995-01-01), Thompson, III

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