JPH0512176B2 - - Google Patents

Abstract

PURPOSE:To allow a user or a repairer to simply set a head lamp in the vertical direction so as to facilitate the maintenance of the head lamp by providing a setting elevator part for adjusting the inclination of a floor at one end of a floor inclination setting level, and by providing an adjusting elevator part adapted to indicate a degree of adjusted inclination, at the other end thereof. CONSTITUTION:When the user or a repairer requires readjustment of vertical setting of a head lamp 1 which has been vertically set, an automobile is set on a suitable surface, and then it is observed through a floor inclination level 5. If the floor inclination level 5 does not indicate a horizontal condition, the adjusting a elevator part 5b is adjusted by means of a dial 5c so as to obtain a horizontal indication whose a gradation is then read. The value of the gradua tion indicated by the dial 5c gives a value of inclination of the surface on which the automobile is set, and accordingly, an inclination is compensated by setting the value of the graduation on a dial 6c of a setting level 6, and in this condi tion, an adjusting screw 3a is adjusted so as to allow the setting level 6 to give a horizontal indication. Thereby it is possible to make a vertical setting, irrespective of an inclined surface.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a headlamp for a motor vehicle, and more particularly to a method and apparatus for vertical aiming when mounting a headlamp on a vehicle body.

[Conventional technology]

FIG. 7 shows an example of vertical aiming of a conventional headlamp 31 of this type. This headlamp 31 is formed to be vertically rotatable by a rotation shaft 31a and an adjustment screw 31b, and the lens has an aiming A boss 31c is provided.

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 33a provided on the external sight 33 is The adjusting screw 31b is adjusted so that the horizontal position is indicated.

[Problem to be solved by the invention]

However, with the conventional aiming method described above, ordinary automobile users are not equipped with an external sight 33, so simple maintenance such as replacing the headlamp 31 cannot be performed, and maintenance workers are unable to perform simple maintenance. In this case, it is necessary to prepare a strictly horizontal surface large enough for the vehicle to be placed on, and the automobile manufacturer has no choice but to create a structure in which the lens of the headlamp 31 moves at the same time as the above-mentioned vertical aiming. This creates constraints on the design.

Problems such as these 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 aims vertically 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 pointing level provided on the movable part of the headlamp is set at a predetermined position, and when the headlamp is installed on the vehicle body, the leveling level provided on the vehicle body or the fixed part of the headlamp is set at a predetermined position. To provide a method for vertically aiming a headlamp, the method comprising: setting the indicator of the aiming level at a predetermined position, and adjusting the vertical aiming mechanism to reset the indicator of the aiming level to the predetermined position to correct individual differences in vehicle bodies. This eliminates the need for a sight and a horizontal surface for vertical aiming of the headlamp 31 after the automobile is shipped, thereby solving the above-mentioned conventional problem.

〔Example〕

Next, the present invention will be explained in detail based on an embodiment shown in the drawings.

1 is a headlamp, and this headlamp 1 includes a housing 2 which is attached to the vehicle body (not shown) and serves as a fixed part.
It is equipped with a reflector 3, which is a movable part that enables vertical aiming with a rotating shaft 3a and an adjustment screw 3b, and the lens 4 may be on either the fixed part side or the movable part side as described above. It is becoming.

In the headlamp 1, according to the present invention, a floor tilting level 5 is disposed on the housing 2, which is a fixed part, and a leveling level 6 is disposed on the reflecting mirror 3, which is a movable part. Both levels 5 and 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 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 sighting will be explained as follows. 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 6a) 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. Dial 5c (dial 6c)
Adjustment lifting/lowering parts 5b, 6b are provided with indexes 5d (index 6d) added, and these levels 5, 6 can be adjusted by adjusting the setting lifting parts 5a, 6a. The inclination can also be freely adjusted by adjusting the portions 5b and 6b.

Next, to explain the vertical aiming method using the headlamp 1 configured as described above, first, in the lamp manufacturing line, the adjustment lifting parts 5b and 6b of the floor tilting level 5 and the aiming level 6 are adjusted. The dials 5c and 6c are set to the "0" position along with the indicators 5d and 6d, and then they are mounted on a jig or the like that reproduces the state in which they are mounted on a car, and vertical aiming is performed using the adjustment screw 3a. The setting lifting parts 5a, 6a are adjusted, and both levels 5,
6 is adjusted to point horizontally and is supplied to the automobile assembly line.

On the automobile assembly line, the headlamp 1 is assembled to the automobile. In principle, there is no need for further adjustment due to the adjustments made on the lamp manufacturing line, but in reality, due to the accumulation of component tolerances, etc. Due to individual differences in each vehicle, fine adjustment is required, and this fine adjustment can be done by adjusting the setting lifting section 5a and directing the floor tilting level 5 horizontally on a strictly horizontal plane. Vertical aiming is performed by correcting the above-mentioned individual differences and further adjusting the aiming level 6 using the adjustment screw 3a to give a horizontal indication.

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 the floor tilting level 5. 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 by setting this scale value on the dial 6c of the aiming level 6, the amount of inclination is corrected. In this state, by adjusting the aiming level 6 using the adjusting screw 3a so as to direct the aiming level 6 horizontally, vertical aiming can be performed even on an inclined surface.

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 means that the headlamp 1
This makes it possible to keep the lens 4 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. This embodiment is attached to the car body 10 of an automobile, and is completely the same as the previous embodiment except that the step of adjusting the floor inclination level 5 in the lamp manufacturing line is not required. A detailed explanation 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 above-mentioned floor inclination level 5 is used.
Although the headlamp 1 is provided outside the housing 2, the headlamp 1 is usually installed in a position where it is easily exposed to rainwater and the like, so it is easily exposed to water and mud.

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 provided within 2.

In addition, a transparent window 7 is provided in the housing 2 corresponding to the position where the levels 5 and 6 are provided so that they can be viewed at all times. is provided.

FIG. 6 shows an example of the opening/closing means,
In the case shown in FIG. 6A, the transparent window 7 is integrally fixed to the housing 2, for example, by integral molding or adhesive, and openings 7a are formed at positions corresponding to the respective elevating parts 5a, 5b, 6a, and 6b. A grommet 8 made of rubber is fitted into the grommet, and can be attached or 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 the levels 5,
6 is sealed to prevent it from getting wet or getting muddy.

〔Effect of the invention〕

As explained above, according to the present invention, a floor tilting 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 inclination level and the aiming level are provided with a setting lifting part on one side of the detection side to adjust the inclination of the level, and on the other end, the inclination is adjusted and the degree of adjustment is displayed. This headlamp vertical aiming device is characterized by a vertical adjustment part that allows the driver to move up and down, and the corresponding aiming method makes it easier for car users and repairers to prepare an external sight and a strict horizontal surface. This makes it easy to aim vertically without having to move the headlamp, which has the excellent effect of making maintenance easier.It also allows car manufacturers to use headlamps whose lenses do not move together, increasing the degree of freedom in design. It becomes something that plays.

[Brief explanation of drawings]

FIG. 1 is a 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. FIG. 4 is a sectional view of a main part showing another embodiment of the present invention, and FIG. 5 is a sectional view of another embodiment of the present invention.
FIG. 6 is an enlarged sectional view of the portion shown in FIG. 5, and FIG. 7 is a sectional view showing a conventional example. 1...head lamp, 2...housing, 3...
...reflector, 3a...rotation shaft, 3b...adjustment screw,
4...Lens, 5...Level for floor slope, 5a...
Elevating section for setting, 5b... Elevating section for adjustment, 5c...
Dial, 5d...index, 6...aiming level,
6a...Elevating part for setting, 6b...Elevating part for adjustment,
6c...dial, 6d...indicator, 7...transparent window, 7a...opening, 8...grommet.

Claims (1)

[Scope of Claims] 1. With a single headlamp in a virtual state where it is installed on a vehicle body, vertical aiming is performed by adjusting a vertical aiming mechanism using an adjustment screw, and at the same time, the movable part of the headlamp is setting the direction of the installed aiming level at a predetermined position, and when installing the headlamp to the vehicle body, setting the direction of the floor tilting level provided at the vehicle body or the fixing part of the headlamp to a predetermined position; A method for vertically aiming a headlamp, comprising adjusting the vertically aiming mechanism and resetting the indication of the 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 have an adjustment direction. A level for floor inclination and a level for aiming are installed, and each of the level for floor inclination and the level for aiming has a setting lifting/lowering device 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 vertical aiming device for a headlamp is provided with an adjusting lifting portion for adjusting the inclination and displaying the degree of adjustment at the other end. 3. Both the level for floor inclination and the level for aiming are disposed within the housing of the headlamp, and the setting lifting part and the adjusting lifting part are provided 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 removed during adjustment of the headlamp.