Sliding structure for shaft member with improved abrasion...

Details Sliding structure for shaft member with improved abrasion... Sliding structure for shaft member with improved abrasion...

2006-10-10

2006-10-10

Scherbel, David A. (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Injection nozzle opened by relieving supply

C239S102200, C239S533900, C239S533110, C251S355000, C384S015000, C384S016000, C277S412000, C277S413000

Reexamination Certificate

active

07118046

ABSTRACT:
In a sliding structure in which a shaft member is retained slidably in a guide hole, the lack of an oil film caused by the edge contact of the shaft member to which a pressing load in the axial direction is applied is prevented. With the fact being taken into account that end portions25c1and25c2, which are always in slidable contact with a side surface1232aof a guide hole1232, of a side surface25cof a shaft member251are the partial edge portion, a plurality of labyrinth grooves2501and2502are formed in the end portions25c1and25c2, respectively, thereby it is possible for an oil film to cover the entire contact portion without increasing the groove width extremely. Because the groove width is not increased extremely, the length of the sliding portions can be ensured.

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