Steerable wheel direction indicator
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United States of America Patent
Stats
-
Mar 1, 1988
Grant Date -
N/A
app pub date -
Mar 12, 1987
filing date -
Mar 12, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The indicator is especially useful for an industrial truck with a steerable wheel which can be turned through a steering arc of as much as one hundred eighty degrees. The indicator includes a potentiometer mechanically coupled to be rotated in synchronism with the steering rotation of the steerable wheel, and a multiple voltage threshold detector circuit connected to receive the variable voltage from the potentiometer and operable to provide one out of N discrete output signals in response to potentiometer voltages which have predetermined voltage level relationships to the respective voltage thresholds. At least N discrete indicator lamps are arranged in an array for indicating steerable wheel direction, and the indicator lamps are connected to receive the discrete output signals from the multiple voltage threshold detection circuit for indicating travel direction.
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