Pivot device and method of generating asymmetric friction torque
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United States of America Patent
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May 14, 2019
Grant Date -
Feb 8, 2018
app pub date -
Feb 18, 2016
filing date -
Feb 19, 2015
priority date (Note) -
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Abstract
A pivot device having asymmetric friction torque is provided. The pivot device includes a shaft extending along a longitudinal axis, a sleeve surrounding the shaft, the sleeve defining a gap extending longitudinally, the sleeve and the shaft being configured for rotation with respect to one another about the longitudinal axis, and a helical compression element surrounding the sleeve and exerting a compressive force onto the sleeve, wherein a first torque required to rotate the sleeve and the shaft with respect to one another in a first direction differs from a second torque required to rotate the sleeve and the shaft with respect to one another in a second direction opposite to the first direction. A method for providing a pivot device asymmetric friction torque is also provided.
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