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Patent Searching and Data


Title:
VEHICLE HEADLAMP
Document Type and Number:
Japanese Patent JP2010015693
Kind Code:
A
Abstract:

To provide a vehicle headlamp which can automatically change light distribution according to running state or the like of a vehicle and can return automatically to a low-beam illumination at the time of a failure of an actuator.

The shade mechanism 15 is provided with a rotating shade 20 which is made of a rotating shaft member that is constructed so as to rotate around a horizontal axial line Hx extending in the vehicle body width direction and has a first light distribution forming part to form four kinds of low-beam light distribution patterns and a second light distribution forming part to form a high-beam light distribution pattern in the circumference direction of the outer circumference, a rotation motor 30 which rotates the rotating shade 20 through a first rotating member 32 and arranges the plurality of light distribution forming parts in the first light distribution forming part A1 selectively at the upper part, and a solenoid 40 which arranges the second light distribution forming part B1 at the upper part by rotating the rotating shade 20 against the rotation energizing force of a torsion coil spring 55 at the time of control.


Inventors:
OSHIO HIROHIKO
Application Number:
JP2008171886A
Publication Date:
January 21, 2010
Filing Date:
June 30, 2008
Export Citation:
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Assignee:
KOITO MFG CO LTD
International Classes:
F21S8/10; F21V14/00; F21W101/10; F21Y101/00
Domestic Patent References:
JP2004349120A2004-12-09
JP2007294203A2007-11-08
JPH05342901A1993-12-24
Attorney, Agent or Firm:
Teruo Naito