Sliding guide apparatus

Details Sliding guide apparatus Sliding guide apparatus

2006-11-28

2006-11-28

Hannon, Thomas R. (Department: 3682)

Bearings

Linear bearing

Lubricating

C384S012000

Reexamination Certificate

active

07140775

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.

REFERENCES:
patent: 3109514 (1963-11-01), Deflandre
patent: 3231320 (1966-01-01), Krafft
patent: 3508430 (1970-04-01), Edmondson
patent: 3635532 (1972-01-01), Zerbola
patent: 3903993 (1975-09-01), Vorrhees et al.
patent: 6749378 (2004-06-01), Saito et al.

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