GEAR DRIVE AND DRIVE WHEEL CONFIGURATION FOR ZERO TORQUE STEER
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United States of America Patent
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Issued Date -
Dec 24, 2020
app pub date -
Jun 18, 2019
filing date -
Jun 18, 2019
priority date (Note) -
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Abstract
Apparatuses and systems that yield a zero torque steer for a pallet truck or similar vehicle are disclosed. In an embodiment, a motor is attached to a final drive. The final drive is equipped to a steer assembly such as a tiller that includes a drive wheel that is offset from the steering axis. The offset is determined on the basis of the drive wheel radius, divided by the ratio of the final drive. The ratio of the final drive is determined by selection of the sizes of a first and second gear. In embodiments, the first and second gears provide a right angle drive. The drive wheel creates a torque due to the offset that counteracts torque imposed by operation of the drive motor. Other embodiments may be described and/or claimed.
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