Setting angle adjuster for the car headlamp

An angle adjuster for a car headlamp is provided. The adjuster includes an adjuster stand having two crossed gear holders, a vertical gear holder and a crosswise gear holder. A driving gear with an integrally formed adjusting rod is disposed in the vertical gear holder and a threaded sleeve coupled to an active gear is disposed in the crosswise gear holder. A circular toothed groove is formed along the circumferential edge of the active gear to be driven by the driving gear. The two openings defined by the holders are each covered by a respective one of two slip caps. One end of a bolt is engaged with the threads of the threaded sleeve, and the other end is connected to the body of a headlamp. The screwing in or out of the bolt responsive to rotation of the adjusting rod drives the headlamp to change its tilt, the changed angle being set exactly in a simple and easy manner.

BACKGROUND OF THE INVENTION 
FIELD OF THE INVENTION 
The present invention relates to a setting angle adjuster for car 
headlamps. More particularly, the present invention is directed to an 
adjuster utilizing a pair of gears to set the inclination of a headlamp 
easily and accurately. 
PRIOR ART 
In accordance with the general purpose of car headlamps in providing 
lighting, and meeting that purpose for different vehicles, at different 
azimuths and inclinations, the car headlamp should be adjustable and 
fixable in the adjusted position. Referring to FIG. 4, there is shown, a 
conventional setting angle adjuster for a car headlamp. Such a prior art 
adjuster is set up at the rear end of the body of the headlamp. A bolt is 
connected with a beam holder for driving a vertical adjusting rod to 
adjust the angular displacement of the-headlamp in up-down and right-left 
tilting. The main adjusting structure provides for the bolt being joined 
to a threaded sleeve, one end of the sleeve being fixed to a gear wheel 
located in a setting space and geared with a crosswise gear. The crosswise 
gear has a central opening for coupling to an adjusting rod. Displacement 
of the bolt corresponds to the respective rotary movements of the threaded 
sleeve, the gear wheel, the crosswise gear and the adjusting rod, to tilt 
the headlamp at an exact angle. 
The structure of the present invention provides a more simple device, which 
is easier to operate and install, and makes the headlamp adjustment more 
accurate. 
SUMMARY OF THE INVENTION 
The present invention provides a setting angle adjuster for a car headlamp. 
The setting angle adjuster includes an adjuster stand having a crosswise 
gear holder and a vertical gear holder. A driving gear with an integrally 
formed adjusting rod is disposed in the vertical gear holder. A bolt is 
engaged within a threaded sleeve which is in turn coupled to an active 
gear disposed within the vertical gear holder, and engaged by the driving 
gear. The openings in the holders are covered by respective slip caps, 
providing support for the gearing to provide for the accurate adjustment 
of the car headlamp.

DESCRIPTION OF THE PREFERRED EMBODIMENT 
Referring to FIG. 1, the headlamp adjuster includes an adjuster stand 1, a 
crosswise gear 2, a threaded sleeve 3, an active gear 4, two slip caps 5, 
6 and a bolt 7. 
The adjuster stand 1 has a crosswise gear holder 12 and a vertical gear 
holder 11 intersecting each other. The adjuster stand 1 also has two 
blocks 13 disposed on opposing sides thereof, each block having a 
plurality of holes 131 formed therethrough for fixation to the vehicle. 
The driving gear 2 has an adjusting rod extending from the center of one 
side thereof, the adjusting rod 21 being integrally formed with driving 
gear 2. The driving gear 2 is disposed within the vertical gear holder 11 
of the adjuster stand 1, and covered by the slip cap 5. The adjusting rod 
21 extends to the outside through a hole 51 formed through the slip cap 5. 
The threaded sleeve 3 has a spline shaped fixture end 31, a thread 32 
formed on the inside surface of a through bore formed therein. 
The active gear 4 has a splined hole 41 corresponding in shape to the 
fixture end 31 of the threaded sleeve 3. A circular toothed groove 42 is 
formed along the circumferential edge of active gear 4, in equal pitch. 
The active gear is joined to the fixture end 31 of the threaded sleeve 3, 
within the splined hole 41. The active gear 4 is contained within the 
crosswise gear holder 12 and covered by a slip cap 6. The bolt 7 passes 
through the hole 61 of the slip cap 6 to threadedly engage the thread 32 
of the threaded sleeve 3. 
Referring to FIG. 2, the combination of the above-mentioned parts is shown. 
The gear 2 is disposed in the vertical gear holder 11 of the adjuster 
stand 1, its teeth engaged in the circular toothed groove 42 of the active 
gear 4 disposed in the crosswise gear holder 12. Referring to FIG. 3, the 
operation of the bolt 7 is shown. The bolt 7 is connected to the body of 
the headlamp 8, and is screwed in or out by rotation of the adjusting rod 
21, to drive the headlamp 8 to change the angle to which it is directed, 
providing the means to adjust the headlamp to an exact angle, for 
providing good lighting.