Linear motion device having an anti-twist safeguard, comprising an elongate anti-friction lining
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United States of America Patent
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Oct 6, 2015
Grant Date -
Apr 25, 2013
app pub date -
Oct 19, 2012
filing date -
Oct 20, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A linear motion device includes a housing, an extension arm, and an anti-twist safeguard. The extension arm projects from the housing and includes a securing section. The anti-twist safeguard includes at least one separate elongate anti-friction lining, which is formed with a constant cross-sectional shape. The anti-friction lining is arranged substantially without play between the housing and the securing section of the extension arm and extends transversely to a longitudinal axis. The extension arm is supported on the housing in such a way that it can move along the longitudinal axis. In the securing section, the extension arm extends parallel to the longitudinal axis with a constant external cross-sectional shape deviating from a circular shape. The anti-twist safeguard engages positively in said external cross-sectional shape, thus securing the extension arm with respect to the housing against twisting relative to the longitudinal axis.
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