Linear Motion Guide Unit And Method For Detecting Strain On The Same
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United States of America Patent
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N/A
Issued Date -
Oct 11, 2007
app pub date -
Mar 27, 2007
filing date -
Mar 29, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A linear motion guide unit, having force-information detecting means and enabling reductions in size and manufacturing cost, is provided with a casing having a mounting portion combined with two wings which have rolling-contact faces facing a track rail and return holes interconnecting with the rolling-contact faces and incorporate rollers rolling through the rolling-contact faces and the return holes. The rollers move the casing along the track rail while rolling between the rolling-contact faces and the track rail. A load acts on the casing and a force acts on the wings in the direction of moving them farther away from each other. Bulge portions are created on the outer side-faces of the wings by the action of the force, in which tensile-strain detection sensors are provided. Compressive-strain detection sensors are provided in depression portions created next to the bulge portion closer to the mounting portion when the bulge portions are created.
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