JPH0350042A - Headlamp vertical aiming method and device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to automobile headlamps, and more particularly to a method and apparatus for vertical aiming when mounting a headlamp on a vehicle body.

[Conventional technology]

FIG. 5 shows an example of the vertical aiming of a conventional headlamp 31 of this type.
1a and an adjustment screw 31b to be rotatable in the vertical direction, and the lens is provided with an aiming boss 31c. When attaching the headlamp 31 to an automobile, the automobile is placed on a strictly horizontal plane, the external sight 33 is attached with the aiming boss 31c as a reference, and the level provided on the external sight 33 is The adjustment screw 31b is adjusted so that 33a indicates the horizontal position.

[Problem to be solved by the invention]

However, with the above-mentioned conventional aiming method, (1) General automobile users are usually not equipped with an external sight 33, so simple maintenance such as replacing the headlamp 31 cannot be performed. ■ Mechanics have no choice but to prepare a strictly horizontal surface large enough to place the car on, and car manufacturers have no choice but to simultaneously move the lens of the headlamp 31 with the above-mentioned vertical aiming. <It has no choice but to be structured, which creates constraints on the design. These problems have arisen in various areas, and the solution to these problems has become an issue.

[Means to solve the problem]

As a means for solving the above-mentioned conventional problems, the present invention provides vertical aiming by adjusting a vertical aiming mechanism using an adjustment screw by adjusting the movable part of the headlamp using a single headlamp that is virtually attached to a vehicle body. At the same time, the aiming level attached to the movable part of the headlamp is set at a predetermined position, and when the headlamp is installed on the vehicle body, the level provided on the vehicle body or the fixed part of the bed lamp is set at a predetermined position. The headlamp is characterized in that the indication of the tilt level is set to a predetermined position, and the vertical aiming mechanism is adjusted to reset the indication of the aiming level to the predetermined position to correct individual differences in vehicle bodies. By providing a vertical aiming method, the above-mentioned conventional problems can be solved by eliminating the need for a sight and a horizontal surface for vertical aiming of the headlamp 31 after the automobile is shipped.

【Example】

Next, the present invention will be explained in detail based on an embodiment shown in the drawings. What is indicated by the reference numeral 1 in FIG. 1 is a headlamp, and this headlamp 1 includes a housing 2 that is attached to the vehicle body (not shown) and serves as a fixed part, a rotating shaft 3a, and an adjusting screw 3b. A reflecting mirror 3, which is a movable part that can be vertically aimed, is provided, and the lens 4 may be placed on either the fixed part side or the movable part side. In the headlamp 1, a level 5 for floor inclination is disposed in the housing 2 which is the above-mentioned fixed part according to the present invention,
A level 6 for aiming is arranged on the reflecting mirror 3 which is a movable part,
These two levels 5.6 are used as a vertical aiming device. Below, the floor inclination level 5 and aiming level 6 will be explained in more detail. Both levels 5 and 6 are respectively installed at predetermined positions parallel to the direction of travel of the vehicle. Since both levels 5 and 6 have exactly the same configuration, the level 5 for floor inclination will be used as a representative example, and the level 6 for aiming will be explained in the same way. It shall be added in parentheses. What is shown in FIGS. 2 and 3 is the floor tilting level 5 (sighting level 6), which is basically a water tube type, but the level 5 (level 6) A setting lifting section 5a (setting lifting section 8a) made of a screw and a spring is provided at one end on the detection side, that is, the side for measuring the horizontal level, and a substantially similar configuration is provided at the other end. An adjustment lifting section 5b (lb) to which a dial 5c (dial 6C) and an index 5d (index Eld) are added is provided, and this level 5 (8) is attached to the setting lifting section 5a (6a). The inclination can be freely adjusted by adjusting the adjustment lifting portion 5b (6b). Next, to explain the vertical aiming method using the headlamp 1 configured as described above, first, in the lamp manufacturing line, first, the raising and lowering parts 5b, 13b for adjusting the floor tilting level 5 and the aiming level 6 are adjusted. Both the dial 5C18C and the index 5d1Eld are set to the "0" position, and then they are mounted on a jig that reproduces the state in which they are mounted on a car, and vertical aiming is performed using the adjustment screw 3a.In this state, the setting The elevating part 5a16a is adjusted, both levels 5 and θ are adjusted to indicate horizontality, and the headlamp 1 is then supplied to the automobile assembly line.In the automobile assembly line, the headlamp 1 is assembled to the automobile. In principle, re-adjustment is not necessary due to the above-mentioned adjustments made on the lighting manufacturing line, but in reality, individual differences occur for each vehicle due to factors such as the accumulation of component tolerances, so fine adjustments are required. , this fine adjustment is made on a strictly horizontal plane.
The above-mentioned individual differences are corrected by adjusting the floor inclination level 5 to point horizontally, and by adjusting the adjusting screw 3a to make the aiming level 6 point horizontally, vertical aiming can be performed. will be held. When the headlamp 1, which has been vertically aimed using the above procedure, needs to be readjusted, for example by a repair shop or a car user, first place the car on an appropriate surface and use a floor tilt level. 5, and if the floor inclination level 5 does not indicate levelness, adjust the adjustment lifting/lowering section 5b with the dial 5c to indicate levelness, and read the scale at that time. The scale value indicated by this dial 5c is the amount of inclination of the surface on which the car is placed, so this scale value is
By setting the dial 6c, the amount of inclination is corrected, and in this state, by adjusting the adjusting screw 3a so that the aiming level 6 gives a horizontal command, even though it is an inclined surface. Vertical aiming is performed first. That is, according to the aiming method using the vertical aiming device of the present invention, after the automobile is shipped from the manufacturer, it is possible to perform vertical aiming without requiring a strict horizontal plane or an external sight, and Eliminating the need for a sight also allows the lens 4 of the headlamp 1 to be fixed. What is shown in FIG. 4 is another embodiment of the vertical aiming device of the present invention, whereas in the previous embodiment the floor tilting level 5 was attached to a fixed part such as the housing 2 of the headlamp 1. On the other hand, this embodiment is attached to the car body 10 of an automobile, and is completely the same as the previous embodiment except that the adjustment process of the floor inclination level 5 in the lamp manufacturing line is not required. Detailed explanation here will be omitted. What is shown in FIG. 5 is yet another embodiment of the present invention, and in any of the previous embodiments, the floor slope level 5 is connected to the housing 2.
However, since the headlamp 1 is normally installed in a position where it is easily exposed to rainwater, it is likely to be exposed to water, mud, etc. Therefore, this embodiment has been achieved, and the floor slope level 5 is attached by providing a shelf 2a inside the housing 2, so that both levels 5 and 6 are attached to the housing 2. It will be established within. In addition, a transparent window 7 is provided in the housing 2 corresponding to the position where the spirit level 5.6 is provided so that it can be viewed at all times. is provided. FIG. 6 shows an example of the opening/closing means, and FIG. 8A shows an example of the opening/closing means.
The transparent window 7 shown in FIG. It is fitted and can be attached and detached as necessary. On the other hand, in the case shown in FIG. 6B, the transparent window 7 itself is used as an opening/closing means by being detachably attached using, for example, a screw, and when closed, the transparent window 7 is sealed with a gasket 9 or the like. By doing this, both of the levels 5.6 are sealed, thereby preventing them from getting wet or getting muddy.

【Effect of the invention】

As explained above, according to the present invention, a floor tilt level and an aiming level that are sensitive in the adjustment direction are installed on either the vehicle body or the fixed part and the movable part of the headlamp. The level for floor inclination and the level for sighting are provided with a lifting part for adjusting the inclination of the level at one end on the detection side, and a lifting part for adjusting the inclination and the degree of adjustment at the other end. This vertical aiming device for headlamps is characterized by having a lifting part for display adjustment, and the corresponding aiming method makes it easier for car users and repairers to use external sights and precise horizontal surfaces. This allows for easy vertical aiming without the need for a separate lens, which has the excellent effect of making maintenance easier.In addition, it also allows car manufacturers to adopt headlamps whose lenses do not move together, giving them greater freedom in design. This will have the effect of increasing the

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of a main part showing an embodiment of a vertical aiming device for a headlamp according to the present invention, FIG. 2 is a front view showing a spirit level which is a main part of the same embodiment, and FIG. 4 is a cross-sectional view of a main part showing another embodiment of the present invention; FIG. 5 is a cross-sectional view of still another embodiment of the present invention; FIG. The figure is an enlarged cross-sectional view of part ■ in Fig. 5.
The figure is a sectional view showing a conventional example. 1...--Headlamp 2--Housing 3--Reflector 3a--Rotating shaft 3b-- --Adjustment screw 4 --- Lens 5 --- Floor inclination level 5a --- Setting lifting section 5b --- Adjustment Elevating section 5c...--Dial 5d...Indicator 6...--- Level 6a for aiming --- Elevating section 6b for setting ································································································································. Opening 8 --- Grommet

Claims (3)

[Claims] (1) With a headlamp in a state where it is assumed to be installed on a vehicle body, the movable part of this headlamp is adjusted to vertical aiming mechanism using an adjustment screw, and at the same time, the movable part of this headlamp is attached to the movable part of the headlamp. When the headlamp is installed on the vehicle body, the direction of the floor tilting level provided on the vehicle body or the fixing part of the headlamp is set at a predetermined position. . A method for vertically aiming a headlamp, comprising: adjusting the vertical aiming mechanism to reset the indication of an aiming level to a predetermined position to correct individual differences in vehicle bodies. (2) In a headlamp that has a fixed part that is attached to the vehicle body and a movable part that is vertically adjusted by a rotating shaft and an adjustment screw, either the vehicle body or the fixed part and the movable part are , a level for floor inclination and a level for aiming are installed which are sensitive in the adjustment direction, and the level for leveling for floor inclination and the level for aiming are set at one end on the detection side to adjust the inclination of the level. 1. A vertical aiming device for a headlamp, characterized in that a lifting part for setting is provided, and an adjusting lifting part is provided at the other end for adjusting the inclination and displaying the degree of adjustment. (3) Both the level for floor inclination and the level for sighting are disposed within the housing of the headlamp, and the setting raising and lowering part and the adjusting part are located in the housing at positions corresponding to both the levels. 3. The vertical aiming device for a headlamp according to claim 2, further comprising a transparent window provided with an opening/closing mechanism that can be attached and detached when adjusting the lifting/lowering section.