Measuring and testing – Rotor unbalance – In situ
Patent
1989-08-02
1990-09-18
Chapman, John
Measuring and testing
Rotor unbalance
In situ
74 16, G01M 128
Patent
active
049569988
ABSTRACT:
An apparatus for driving a motor vehicle wheel while it is fitted to the motor vehicle for detecting unbalance thereof comprises a friction wheel which is driven by a drive motor and which is pressed against the motor vehicle wheel for driving same at a speed required for measuring its unbalance. The drive motor is switched on or off in dependence on the pressure force with which the friction wheel is pressed against the motor vehicle wheel, in such a way that no slip occurs between the friction wheel and the motor vehicle wheel.
REFERENCES:
patent: 3483764 (1969-12-01), Hunter
patent: 3688590 (1972-09-01), Bjorn et al.
Chapman John
Hofmann Werkstatt-Technik GmbH
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