Illumination – Supported by vehicle structure – Light modifier
Reexamination Certificate
1999-07-26
2001-05-08
Tso, Laura K. (Department: 2875)
Illumination
Supported by vehicle structure
Light modifier
C362S520000, C362S324000, C362S284000
Reexamination Certificate
active
06227690
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Technical Field of the Invention
This invention relates to an improvement of a vehicle headlight.
2. Discussion of the Prior Art
In the case of vehicle headlights, and in the case of vehicle headlights including auxiliary headlights such as headlights and fog lamps, it is essential that their irradiation angles can be adjusted so that they suitably irradiate forwardly of the vehicles.
Accordingly, generally, a vehicle headlight is so designed that a lamp body or reflector, and a supporting member are coupled to each other with a movable fulcrum section and a stationary fulcrum section in such a manner that the lamp body or reflector is tiltable with respect to the supporting member. Thus, the vehicle headlight has an irradiation angle adjusting mechanism to adjust its irradiation angle.
There is available a vehicle headlight, such as a vehicle front headlight employed as an auxiliary headlight (hereinafter referred to as “an auxiliary headlight”, when applicable) which is set in the lamp body of a headlight unit comprising a headlight and some other lamps. That is, the above-described auxiliary headlight is generally arranged in the lamp body of the headlight in such a manner that the reflector can be tilted with the irradiation angle adjusting mechanism.
On the other hand, the above-described auxiliary headlight is built inside the headlight. Therefore, the space around the auxiliary headlight is small; that is, the space for the irradiation angle adjusting mechanism made up of the movable fulcrum section and the stationary fulcrum section is limited.
In the stationary fulcrum section, the lamp body or reflector is generally coupled to a pivot buried in the supporting member with a so-called “bearing nut” which is mounted on the lamp body or reflector. Accordingly, the stationary fulcrum section is intricate in structure, and the assembling work is low in efficiency.
SUMMARY OF THE INVENTION
Accordingly, presented is an irradiation lamp which is simplified in structure, thus occupying a small space, thereby to provide a vehicle headlight which can be suitably arranged in a small space where a vehicle headlight having a conventional irradiation angle adjusting mechanism cannot be arranged. This is achieved by the provision of a vehicle headlight designed in such a manner that a tilting member is tiltably supported through an irradiation angle adjusting mechanism by a supporting member, in which, according to the invention, a supporting shaft is provided on the upper part or lower part of the tilting member in such a manner that the supporting shaft protrudes horizontally and in a direction perpendicular to an irradiation axis. Bearing members are secured to the supporting member, and stationary fulcrum sections of the irradiation angle adjusting mechanism are formed by rotatably holding the supporting shaft on the bearing members. By operating a distance adjusting member arranged in a movable fulcrum section of the irradiation angle adjusting mechanism, the tilting member is tilted with the supporting shaft as a tilting fulcrum.
The irradiation angle adjusting mechanism (especially in the stationary fulcrum sections) is such that the supporting shaft is merely held with the bearing members. That is, the irradiation angle adjusting mechanism is simple in structure, and its arranging space is small.
The nature, utility and principle of the invention will be more clearly understood from the following detailed description and the appended claims when read in conjunction with the accompanying drawings.
REFERENCES:
patent: 1731125 (1929-10-01), Cassetty, Jr. et al.
patent: 2475365 (1949-07-01), Walsh
patent: 5068768 (1991-11-01), Kobayashi
patent: 5138540 (1992-08-01), Kobayashi et al.
patent: 5584568 (1996-12-01), Corbasson et al.
patent: 5709452 (1998-01-01), Bertling et al.
Matsubara Masao
Shida Hiroshi
Fish & Richardson P.C.
Koito Manufacturing Co. Ltd.
Tso Laura K.
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