Sliding guide apparatus
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United States of America Patent
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Nov 28, 2006
Issued Date -
N/A
app pub date -
Jul 16, 2004
filing date -
Jul 17, 2003
priority date (Note) -
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Abstract
A sliding guide apparatus guides a movable member for a base. A pair of guide surfaces are formed on the base. A pair of sliding surfaces are formed on the movable member as so to be opposed to the pair of guide surfaces, respectively. Lubricating oil is supplied between the guide surface and the sliding surface. The sliding surface is configured so that one half portion of the sliding surface which is close to the center of gravity of the movable member is asymmetric with the other half portion of the sliding surface which is far from the center of gravity of the movable member. Since a load of the movable member that acts disproportionately on the sliding surface is balanced with dynamic pressure of the lubricating oil that occurs between the guide surface and the sliding surface, it is prevented that the movable member is slanted.
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