Measuring and testing – Dynamometers – Responsive to torque
Patent
1981-10-09
1984-05-08
Goldberg, Gerald
Measuring and testing
Dynamometers
Responsive to torque
250231R, G01L 312, G01L 314
Patent
active
044467460
ABSTRACT:
An apparatus for detecting torque transmitted between two rotary members. A driving member and a driven member are connected via a transmission spring, permitting relative angular displacement therebetween. On either one of the two rotary members a wheel disk having a number of slits arranged in a circle is provided. A detector, such as a photocoupler, for detecting the slits is disposed on a frame adjacent to the wheel disk. A shutter disk with a shutter portion for partially covering the slits is attached to the other rotary member at an opposed posture to the wheel disk. The number of slits detected by the detector is varied according to the relative angular displacement between the driving member and the driven member while they are in rotation, and the torque between both rotary members may be numerically determined from the number of slits detected.
REFERENCES:
patent: 2519378 (1950-08-01), Kilpatrick
patent: 2938378 (1960-05-01), Canapa et al.
patent: 3234655 (1966-02-01), Skeels et al.
patent: 3329012 (1967-07-01), Demuth
patent: 3495452 (1970-02-01), Johnson et al.
patent: 3975954 (1976-08-01), Barnich
patent: 4193720 (1980-03-01), Machida
Aoshima Shozo
Hirose Noboru
Ishikawa Michio
Brother Kogyo Kabushiki Kaisha
Chapman, Jr. John E.
Goldberg Gerald
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