JPH0217362Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> The present invention relates to an aiming structure used in automobile headlights such as fog lamps, and more specifically, a movable reflector in which a reflector is installed within the lamp body to enable aiming. This relates to the aiming structure of a type of headlight.

<Prior art> As shown in FIG. 4, the conventional aiming structure of this type of headlamp consists of attaching a self-locking nut 3 to the lower flange 2a of the reflector 2, which is the moving point, via a bracket 12. An adjusting screw 4 is connected across a self-locking nut 3 and a lamp body 1, and an upper flange 2b of a reflecting mirror 2 serving as a fulcrum and the lamp body 1 are connected by a pivot 5. As a result, it is difficult to assemble and the reflector is prone to wobbling despite the large number of parts.Furthermore, when aiming, the adjuster screw is turned too much and the adjuster screw comes out of the self-locking nut, making it impossible to aim. There was a problem that made it easy to fall into this problem (see Utility Model Publication No. 55-50862).

<Problems to be solved by the invention> The present invention was made in view of the problems of the conventional structure, and it has a simple structure and can reduce costs. Even if the adjuster screw comes off the self-locking nut, the adjuster screw can be easily re-screwed into the self-locking nut without disassembling the headlight, making it impossible to aim during aiming work. There is no danger of falling into
Furthermore, it is an object of the present invention to provide an aiming structure for a headlamp that can securely support a reflecting mirror without the risk of the reflecting mirror shaking or rattling due to external vibrations or the like.

<Means for Solving the Problems> The aiming structure of the headlight of the present invention that achieves the above purpose uses an adjusting screw between the lamp body and a self-locking nut attached to the lower flange of the reflector. At the same time, a resilient spring is interposed between the lamp body and the upper flange of the reflector to urge the upper flange forward, and both left and right flanges of the reflector are connected to the lamp body through elastic spacers. It is characterized by being secured with screws.

<Example> Hereinafter, an example of implementing the present invention will be described based on the drawings.

In the figure, reference numeral 1 denotes a lamp body, inside which a reflecting mirror 2 is installed to enable aiming, a bulb 6 is installed, and a lens 7 is installed on the front side to constitute a headlamp.

The reflecting mirror 2 has a flange formed on its periphery,
It is attached to the lamp body 1 through its upper and lower and left and right flanges 2a, 2b, and 2c so that it can be aimed.

That is, as shown in FIG. 1, a self-locking nut 3 is attached to the lower flange 2a of the reflector 2 either directly or via a bracket 12, and an adjustment screw is installed between the self-locking nut 3 and the lamp body 1. A moving point part for aiming is formed by connecting the units 4, and the lamp body 1 is attached to the upper flange 2b of the reflector 2.
A resilient spring 8 is interposed between the upper flange 2b and the upper flange 2b to always urge the upper flange 2b forward (in the direction of the lens 7). A fulcrum part for aiming is formed by fixing to the boss part 9 of 1 with a screw 11 through a spacer 10 having elasticity such as a rubber material so as to be able to swing freely.

The self-locking nut 3 is constructed in the same manner as the conventional one, and is unrotatably attached to the lower flange 2a of the reflecting mirror 2 or a bracket 12 fixed to the lower flange 2a, and is screwed to the threaded portion 4b of the adjusting screw 4. urge

The adjuster screw 4 is inserted freely through the back side of the lamp body 1, and is attached to the lamp body 1 freely from the inside of the lamp body 1 using a known push-on fixing 13. Part 4a and lamp body 1
A waterproof O-ring 14 is interposed between the back surface and the back surface of the device. Also, at the tip of adjuster screw 4,
As shown in FIG. 3, by forming a protruding portion 4c with a smaller diameter than the outer diameter of the threaded portion 4b on the same body, when the adjusting screw 4 comes off from the self-locking nut 3 during aiming work, the adjusting screw 4 can be removed from the self-locking nut 3. When re-screwing the screw into the self-locking nut, it becomes easier to aim the insertion opening of the self-locking nut with the tip protrusion of the adjusting screw, making re-screwing easier.

The resilient spring 8 is compressed so as to extend between the back surface of the upper flange 2b of the reflector 2 and the inner surface of the lamp body 1 and to elastically bias the upper flange 2b forward (toward the lens 7) at all times. It is installed interveningly and is supported by a support boss 15 protruding from the lamp body 1 so as not to come off. This support boss 15 supports the resilient spring 8, and at the same time, when the reflector 2 moves upward more than necessary during aiming, the back surface of the upper flange 2b of the reflector 2 comes into contact with the top 15a of the support boss 15, and the stopper is closed. It is formed to protrude to the required length so that it can also fulfill its role.

The reflector 2 is fixed to the lamp body 1 by screws 11 at both its left and right flanges 2c, 2c via an elastic spacer 10, and can swing upwardly or downwardly about the screws 11. At the same time, the lower flange 2a is connected to the adjusting screw 4 via the self-locking nut 3, and the upper flange 2b is attached in a state where it is always elastically biased forward by the resilient spring 8. When the adjuster screw 4 is rotated and screwed using the self-locking nut 3, the lower flange 2a of the reflector 2 is attached to the upper flange 2.
The reflecting mirror 2 moves in the front and back direction against the elastic force of the elastic spring 8 which is in elastic contact with the flange 2c,
Aiming is performed by moving upward or downward around the screw 11 fixing portion of 2c.

<Effects of the Invention> Since the aiming structure of the headlamp of the present invention is constructed in this way, reliable aiming can be performed with a simple structure, and it can be manufactured and provided at low cost.

Moreover, both the left and right flanges of the reflector are screwed to the lamp body via elastic spacers, and at the same time, a resilient spring is always applied to the upper flange of the reflector. The self-locking nut attached to the lower flange is always biased toward the adjusting screw, so if you turn the adjusting screw too much during aiming, the adjusting screw will come off the self-locking nut. Even if something like this happens (the threaded relationship comes undone), the self-locking nut will still be in contact with the tip of the adjuster screw due to the elastic force of the elastic spring, and the headlights will remain in contact. It is possible to easily re-thread the self-locking nut by simply rotating the adjusting screw in the opposite direction without having to disassemble it, and as a result, there is no risk of becoming unable to aim during the aiming process. .

Furthermore, in order to attach the reflector to the lamp body so that it can be aimed, both the left and right flanges of the reflector are screwed to the lamp body via elastic spacers, making it easy to mount the reflector and making it possible to aim the reflector. It can be firmly supported, so there is no risk that the reflecting mirror will shake or wobble even if it is subjected to external vibrations, and an appropriate light distribution can be maintained for a long period of time.

Therefore, the intended purpose can be achieved.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing an example of the implementation of the present invention;
The figures are a sectional view taken along the line 2--2 in FIG. 1, FIG. 3 is a sectional view of a main part showing another embodiment of the present invention, and FIG. 4 is a sectional view showing a conventional example. In the figure, 1 is the lamp body, 2 is the reflector, 2a is the lower flange, 2b is the upper flange, 2c is the left and right flanges, 3 is the self-locking nut, 4 is the adjusting screw, 4a is the head, and 4b is the Threaded part, 4
c is a protrusion, 8 is a resilient spring, and 11 is a screw.

Claims (1)

[Scope of utility model registration request] In a headlamp in which a reflector is installed within the light body so that it can be aimed, an adjusting screw is connected between the light body and a self-locking nut attached to the lower flange of the reflector, and the adjustment screw is connected between the light body and the reflector. A resilient spring is interposed between the reflector and the upper flange to urge the upper flange forward, and both the left and right flanges of the reflector are fixed to the lamp body with screws via elastic spacers. The aiming structure of the headlight.