Patent US3590633A successfully refreshed from Google Patents.
US3590633A
Expired / Lapsed
US
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Stress measuring of rotating bodies
Assignee: MAN AG
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Filing: 1970-03-09
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Granted: 1971-07-06
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Expires: 1990-03-09
Abstract
Abstract The tension and compression stresses and the flexural torque and maximum torque in a rotating body, such as a vehicle tire, are measured by dividing the tension and compression forces into the x-x, y-y and z-z axes and the moments into the Mx and Mz axes. Separate load cells are used to measure each force or moment, respectively.
Inventors
- 👤 Wolfgang Fuhrmann
- 👤 Rudolf Nusslein
- 👤 Waldmar Seifert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:41
CPC Classifications
G; G01; G01L; G01L5/00; G01L5/16; G01L5/161; G01L5/1627
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
153 words
An apparatus for determining the magnitude of multiaxial stressing in rotating machinery parts and in particular the radial load Pz, the cornering force Py, and tire drag Px, the aligning torque Mz and the camber moment Mx acting on a vehicle tire comprising a rim for mounting the tire, rolling element bearing means on a cardan frame for supporting said rim, three load cells positioned in the three space directions for taking up, respectively, the three forces Pz, Py and Px, two load cells positioned perpendicular to each other for taking up the forces of the torque Mz and the moment Mx, and mechanical transmission link means for transmitting the forces from the cardan frame to the load cells and from the load cells to a common frame, said link means including pivotal connections which are oriented for influencing each load cell, respectively, by only one of the forces in the measuring direction.
Claim 2
Independent Claim
153 words
An apparatus for determining the magnitude of multiaxial stressing in rotating machinery parts and in particular the radial load Pz, the cornering force Py, and tire drag Px, the aligning torque Mz and the camber moment Mx acting on a vehicle tire comprising a rim for mounting the tire, rolling element bearing means on a cardan frame for supporting said rim, three load cells positioned in the three space directions for taking up, respectively, the three forces Pz, Py and Px, two load cells positioned perpendicular to each other for taking up the forces of the torque Mz and the moment Mx, and mechanical transmission link means for transmitting the forces from the cardan frame to the load cells and from the load cells to a common frame, said link means including pivotal connections which are oriented for influencing each load cell, respectively, by only one of the forces in the measuring direction.
Claim 3
Dependent Claim
169 words
An apparatus as in claim 1 in which the center of said Cardan frame coincides with the center of said rim and said link means comprises a Cardan bar varying said Cardan frame by Cardanic suspension, said Cardan bar having two arms fixed thereto and projecting perpendicularly therefrom, the respective load cells for the forces Mz and Mx being connected between said Cardan frame and one of said arms, said Cardan bar bearing axially on the load cell for the force Py and having a first pair of axially spaced diaphragms fixed perpendicularly thereto, said first pair of diaphragms being combined by yokes to form a trunnion assembly perpendicular to said Cardan bar, said trunnion assembly bearing on the load cell for the force Pz and having a second pair of diaphragms fixed perpendicularly thereto, said second pair of diaphragms being connected by means of flexurally resilient members with said common frame and simultaneously transmit the force Px via a yoke to the load cell for the force Px.
Claim 4
Dependent Claim
70 words
An apparatus as in claim 2, said apparatus being composed of a first part which includes the structure for measuring the Pz, Py and Px forces, a second part which includes the structure for measuring the forces Mz and Mx, and further compRising circular segment coupling means joined to said Cardan bar for swinging said second part around the center of said Cardan frame and relative to said first part.
References Cited (Backward Citations)
US3142178A
Cited
US3206973A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |