Tensioning device for a tracked vehicle
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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May 1, 2001
Grant Date -
N/A
app pub date -
Mar 20, 1998
filing date -
Mar 20, 1998
priority date (Note) -
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Abstract
A tensioning device for maintaining proper belt tension on the drive belt of a tracked vehicle. The flexible drive belt extends between a drive wheel and a carriage mounted free wheel. An idler device dynamically adjusts the tension on the drive belt, and includes a drive wheel mounted to a frame, a carriage slidably mounted to the frame and supporting a free wheel, a hydraulic cylinder mounted to the frame and engaging the carriage for applying a force to the carriage. A hydraulic control circuit operates the hydraulic cylinder, the control circuit being adapted to adjust the pressure in the hydraulic cylinder to apply a first force against the carriage in response to a first detected condition, such as during normal forward operation of the vehicle. The control circuit is further adapted to apply a second force against the carriage in response to a second detected condition, such as during reverse operation of the vehicle. A sensor is provided for detecting the operating condition of the vehicle and is connected to the hydraulic circuit.
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