Servo-driven elevator for dynamic balancer
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United States of America Patent
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Jun 27, 2000
Grant Date -
N/A
app pub date -
Jul 30, 1997
filing date -
Jul 30, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The cycle times of an automatic single station residual unbalance measuring arrangement for a tire-wheel assembly are improved by the application of servo control to the vertical displacement drive of an elevator. Information relating to a particular tire-wheel type is obtained by direct measurement and/or correlation with data associated with predetermined tire-wheel types. A computer controls the operation of a servo motor that controls the vertical displacement of the tire-wheel assembly onto and off of a precision spindle and chuck on which the residual unbalance measurement is performed. The arrangement affords rapid acceleration onto and off of the precision spindle and chuck, but a gentle engagement between the wheel-tire assembly and the precision chuck to avoid tire bounce and damage to the precision balancer tooling.
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