Measuring and testing – Vehicle chassis – Steering
Patent
1980-05-16
1982-04-13
Myracle, Jerry W.
Measuring and testing
Vehicle chassis
Steering
7386209, G01L 302
Patent
active
043241336
ABSTRACT:
A torque measuring device is disclosed wherein a torque of a rotating member rotating about an axis is measured. The device includes a support member which is attached to a fixed object such as a stationary frame by at least two linkage arms. Each linkage arm is pivotably attached at a first point of attachment to the fixed object and at a second point of attachment to the support member. The relative positioning of the rotating member, the support member, and the linkage arms is such that geometrical lines interconnecting the respective first and second points of attachment of each linkage arm substantially intersect the axis of the rotating member. The rotating member is in an operative relationship with the support member so that the rotating member during its rotation imparts a force to the support member, which attempts to rotate the support member.
An instantaneous center of rotation of the support member coincides with the axis of rotation of the rotating member. A load cell or like force measuring device is interposed between the support member and the fixed object to measure the force imparted to the support member by the rotating member. The load cell and the linkage arms prevent substantial displacement of the support member even though the measured force may vary substantially. From the measured force and a known and constant lever arm of the force the torque of the rotating member is readily calculated.
REFERENCES:
patent: 1966603 (1934-01-01), Walker
patent: 2130900 (1938-09-01), Presbrey
patent: 3149420 (1964-09-01), Lebow
patent: 3213679 (1965-10-01), Lebow
patent: 3289471 (1966-12-01), Maxwell
patent: 3377849 (1968-04-01), Lebow
patent: 3600942 (1971-08-01), Brendel
patent: 4023404 (1977-05-01), Brendel
patent: 4179923 (1979-12-01), Dodt
patent: 4215569 (1980-08-01), Bonomo et al.
Brochure from Froude Engineering Ltd., 2 pages dated Jun. 1977.
Brochure from Lebow Associates, Inc. of Troy, Michigan, The Trunnion Mounted Dynamometer, 1 page, no date.
Clayton Manufacturing Company
Myracle Jerry W.
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