JPH0132242Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) This invention relates to an adjuster structure for a headlamp that can be used in the field of vehicle lighting.

(Prior Art) There is an inner aiming type headlamp in which the optical axis of a headlamp is adjusted by moving only the reflector rather than the entire lamp. For example, as shown in Fig. 3, a mounting part c is provided on the reflector of the headlamp a, and an adjustment screw e is attached between this mounting part and the housing d via a spring (not shown). The adjuster screw e allows the reflector b to be moved to adjust the optical axis.

In this case, since the lens f attached to the front surface of the housing d does not move, the appearance is good, but there is a drawback that the opening of the reflector b is visible through this lens, spoiling the aesthetic appearance. For this reason, a sub-reflector g is attached to the tip of reflector b to maintain the aesthetic appearance, but since this sub-reflector moves together with reflector b, lens f
There is a risk of coming into contact with. Furthermore, the shape of the housing d becomes complicated, and a rubber cover h is also required, leading to increased costs. Furthermore, since the adjuster screw e can be operated only from the rear side of the headlamp a, it may not be applicable to automobiles where the installation space is narrow.

(Problems to be solved by the invention) The present invention was made in order to solve all of the above-mentioned problems of the conventional methods. This is intended to provide an adjusting structure.

(Means for Solving the Problems) In order to solve the above problems, the present invention fixes an extension to the lens, attaches a reflector to the extension via a joint made of flexible material, and attaches the reflector to the extension. The gist of the invention is that an adjusting screw is installed between the extension and the extension.

(Function) The optical axis of the headlamp can be adjusted by moving only the reflector, and the extension fixed to the lens maintains the aesthetic appearance and prevents contact with the lens. Operation is also possible.

(Example) Hereinafter, an example of the present invention will be described based on the drawings. Reference numeral 1 denotes an extension made of synthetic resin, etc. A lens 2 is fitted on the front side of the extension, and a mounting portion 1a is provided, and a flange 1b is formed on the outer surface side so as to protrude rearward. Reference numeral 3 denotes a joint made of a soft material such as rubber and formed into a substantially annular shape.A thin bent part 3a is formed along the circumferential direction at the center of the joint, and mounting grooves 3b and 3c are provided at the open end, respectively. ing. This joint 3 connects the flange 1b to the mounting groove 3b.
The reflector 4 is fixed to the extension 1 by being fitted thereinto, and the open end of the reflector 4 is fitted and fixed in the mounting groove 3c. A stay 4a corresponding to the attachment portion 1a of the extension 1 is attached to the front end of the reflector 4.
An adjusting screw 6 is screwed between the spring 5 and the mounting portion 1a. 7 is a bulb inserted into the reflector 4.

Since the present invention is configured as described above,
By operating the adjusting screw 6, the optical axis can be adjusted. That is, the adjuster screw 6 allows the reflector 4 to be moved, and the movement can be made smoothly via the joint 3. The adjusting screw 6 is for adjusting the optical axis in the vertical direction, and although not shown in the drawings, it is provided with an adjusting screw for left-right adjustment and an adjusting fulcrum part that serves as a fulcrum during these adjustments, as is known in the art. .

FIG. 2 shows another embodiment of the joint according to the present invention.
3a is formed into a bellows shape, and B is where the bent portion 23a of the joint 23 is simply formed into a thin planar shape.

(Effects of the invention) As explained above, according to the invention, even if the reflector is moved during optical axis adjustment, the extension does not move, so it does not touch the lens or tilt like a conventional sub-reflector. This prevents damage and maintains the aesthetic appearance. In addition, since the adjusting mechanism is provided between the extension and the reflector via a soft joint, the conventional housing and rubber cover are not required, the joint also serves as a sealing member, and the adjusting screw is installed between the extension and the reflector. Since the operation can be performed from the front side, it has excellent effects such as being fully applicable to mounting parts with narrow depth spaces.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of essential parts showing one embodiment of the present invention, Fig. 2 A and B are explanatory diagrams showing other embodiments of the joint according to the present invention, and Fig. 3 is a conventional example. FIG. 2 is a schematic sectional view of main parts. 1...Extension, 1a...Mounting part, 1
b...Flange, 2...Lens, 3...Joint, 3a...Bent part, 3b, 3c...Mounting groove, 4
...Reflector, 4a... Stay, 5... Spring,
6...Adjust screw, 7...Valve.

Claims (1)

[Scope of utility model registration request] An adjustable structure for a headlamp, characterized in that an extension is fixed to the lens, a reflector is attached to the extension via a joint made of a flexible material, and an adjustment screw is installed between the reflector and the extension. .