| 摘要 |
A vehicular headlamp component is pivotally adjusted in response to back or forth movement of an adjusting link extending through an opening in one wall of a two-component housing of an adjusting device. Back and forth movement of the link is produced by a gear driven bushing which is threaded onto the link. An O-ring encircles the link between the bushing and the housing wall and is adapted to be compressed against the wall and the link thereby to seal the opening in the wall and prevent contamination from passing through the opening and into the housing of the headlamp. Compression of the O-ring is effected by camming the bushing toward the housing wall as an incident to assembly of the two housing components with one another.
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