Method for measuring the torque transmitted to the driving wheel of a cycle or like vehicle and a device for carrying out said method
US5016478A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 22, 1990 |
| Grant date | May 21, 1991 |
| Priority date | — |
| Expiry date | Feb 22, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L5/13
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Detectors consisting of electric strain gages placed on one end of a bicycle wheel spindle and incorporated in the wheel hub are connected to an electric circuit which includes an apparatus for indicating the value of torque transmitted by the wheel. The strain gages can be influenced only by variations in the force applied to the spindle end in the horizontal plane which passes through the center of the spindle. There is thus measured only the horizontal component of the shearing force applied to the wheel spindle, from which it is possible to deduce the value of torque transmitted to the wheel. Instead of being fixed directly on one end of the wheel spindle, the strain gages can be fixed on a member which is associated with the spindle end, the member being capable of bending or undergoing deformation in the horizontal plane which passes through the center of the wheel spindle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.