Orientation-adjusting device for vehicle head light
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 16, 2003
Grant Date -
Apr 18, 2002
app pub date -
Oct 12, 2001
filing date -
Oct 13, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An orientation-adjusting device for a vehicle head light comprises a housing encasement, an active unit, a driven unit, a cover, and driven screw rod, an elastic unit, and an elastic sealing unit. The housing encasement is installed with an elliptical hole and an axial hole. The active unit has an axial portion axially installed to the axial hole, and a gear portion located in the housing encasement. The driven unit is installed with a gear portion engaged with the gear portion of the action unit, and an axially-formed penetrating hole, which includes a threaded hole section near the active unit and a threadless hole section remotely away from the active unit. The cover is installed on the housing encasement to cover the interior of the housing encasement for preventing the driven unit from projecting out from the housing encasement. One end of the driven screw rod is screwed to a threaded section connected to the threaded hole section of the driven unit, and another end thereof is formed with an elliptical cross section passing through the elliptical hole of the housing encasement and connected with the vehicle illuminator; whereas a circular protrusion is formed at a root portion of the elliptical cross section, and a threadless cylindrical section 13 formed between the circular protrusion and the threaded section. The elastic unit is installed between the circular protrusion of the driven screw rod and the driven unit for over-rotating the active unit. The elastic sealing unit is installed between the circular protrusion of the driven screw rod and the elliptical hole of the housing encasement, and prevents gas from passing through the elliptical hole. When the active unit is over-rotated along a direction so that the threaded section of the driven screw rod is separated from the threaded hole of the driven unit, the elastic sealing unit provides an elastic force for re-screwing and combining the threaded section of the driven screw rod with the threaded hole of the driven unit.
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