JPH0436985Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention is based on the idea that the lamp unit is attached to the housing on the vehicle body side using an adjusting screw while being suspended by a compression spring. This invention relates to a mounting device for an automobile headlamp that supports the lamp unit and adjusts the optical axis.

BACKGROUND OF THE INVENTION Automobile headlamps have a lamp unit attached to a housing of a vehicle body so that the optical axis can be adjusted. There are various types of mounting structures.For example, as disclosed in Japanese Utility Model Application Publication No. 58-47525, a mounting structure in which the lamp unit can be mounted and the optical axis can be adjusted using an adjusting screw is used. There is a structure.

As shown in Figs. 4 and 5, a retaining ring 2 and a back retainer 3 are attached to the outer periphery of the lamp unit 1, and both 2 and 3 are connected with screws 4 to be fixed to the lamp unit 1. An adjusting screw 6 with an object inserted into the housing 5 and whose head is locked with the retaining ring 2
to the screw grommet 7 attached to the housing 5, and tighten the adjusting screw 6.
It has a structure in which the retaining ring 2 is suspended from the housing 5 by a compression spring 8 wound around the retaining ring 2. Therefore, by adjusting the tightening amount of the adjusting screw 6, the inclination of the lamp unit 1 can be changed and the optical axis can be adjusted.

By the way, with the above mounting structure, it is difficult to know how much to tighten the adjusting screw 6 at the time of initial assembly, and the number of tightening adjustments must be made while looking at the optical axis, resulting in poor initial assembly performance. It was very bad.

Therefore, conventionally, as shown in FIG. 6, a stopper 9 of an appropriate length is provided integrally with the screw grommet 7, and during assembly, the adjusting screw 6 is held until the retaining ring 2 touches the stopper 9.
When this tightening is completed, the lamp unit 1
The optical axis of the lens is made to have approximately the desired inclination.

Problem to be Solved by the Invention With the above structure, when assembling the lamp unit 1, the compression spring 8 is inserted into the adjusting screw 6, and the adjusting screw 6 is inserted into the screw grommet 7.
After that, the lamp unit 1 with the retaining ring 2 and back retainer 3 combined is attached to the housing 5, and the locking hole 10 formed in the retaining ring 2 is locked to the adjusting screw 6. After stopping, the adjusting screw 6 is again tightened and assembled until the retaining ring 2 hits the stopper 9.

In this assembly, the adjusting screw 6 and the compression spring 8 had to be combined and tightened to the housing 5 at the work site, which was a laborious work and troublesome to manage parts.

In addition, as another assembly method, the lamp unit 1
After connecting the retaining ring 2 and back retainer 3 to the housing 5, the lamp unit 1 is attached to the housing 5.
After inserting the adjusting screw 6 into the retaining ring 2 and putting the compression spring 8 over its protruding end, insert the adjusting screw 6 into the screw grommet 7.
or insert the adjusting screw 6 through the retaining ring 2, cover the compression spring 8 on its protruding end, and then insert the lamp unit 1 into the housing 5.
There is a method of assembling by tightening the adjusting screw 6 to the screw grommet 7.

In the former case, the gap between the retaining ring 2 and the housing 5 is very narrow, making it difficult to insert the compression spring 8 and attach it to the adjusting screw 6, and the lamp unit 1 It took time and effort to assemble.

In the latter case, when inserting the lamp unit 1 into the housing 5, the compression spring 8 is connected from the adjusting screw 6.
Sometimes it would fall off, and the assembly process would have to be repeated many times, making assembly time-consuming and labor-intensive.

This invention aims to provide an assembly device with good assembly workability.

Means for Solving the Problems The mounting device in this invention includes an adjusting screw that supports the lamp unit in the housing of the vehicle body and adjusts the optical axis of the lamp unit, and an adjusting screw that is wrapped around the adjusting screw and is attached to the lamp unit. It is equipped with a compression spring that lifts the gear from the housing, a washer plate that integrally forms a stopper that extends in the axial direction and regulates the amount of tightening of the adjusting screw, and is screwed onto the adjusting screw. .

Function The mounting device with the above structure is made by first inserting the adjusting screw into the headlamp unit side, inserting the compression spring into its protruding end, and then screwing the washer plate together to integrate the three parts. After the headlamp unit is connected, the combined headlamp unit is inserted into the housing of the vehicle body, and the adjusting screw is tightened to the housing to install the lamp unit.

Embodiments Hereinafter, embodiments of this invention will be described with reference to the drawings.

In FIGS. 1 and 2, 15 is a lamp unit, and a retaining ring 16 is attached to the periphery of the lamp unit.
are installed in one piece. Reference numeral 17 denotes an adjuster retaining screw, which is inserted into a locking hole 18 formed in the retaining ring 16 so that its head 17a abuts against the retaining ring 16, and is tightened and fixed to a housing 22, which will be described later. A compression spring 19 is wound around the adjusting screw 17 and constantly compresses the retaining ring 16. A washer plate 20 is screwed onto the adjusting screw 17 to prevent the compression spring 19 from coming off. This washer plate 20 is integrally formed with stoppers 21, 21 of a suitable length extending in the axial direction from the peripheral edge, so that the end surfaces of the stoppers 21, 21 come into contact with the retaining ring 16 when the lamp unit 15 is assembled. By regulating the tightening amount of the adjusting screw 17, the optical axis of the lamp unit 15 is set to a constant value. The washer plate 20 is made of elastic synthetic resin or sheet metal. A housing 22 is fixed to the vehicle body, and has an opening 23 into which the lamp unit 15 is inserted, and a nut member 24 screwed into the adjusting screw 17 is fixedly attached to the periphery of the opening.

The adjusting screws 17 are attached to three locations in the circumferential direction of the retaining ring 16, and a compression spring 19 and a washer plate 20 are attached to each location. Further, the housing 22 is also provided with nut members 24 at three locations.

To assemble the lamp unit 15 to the housing 22, the adjusting screw 17 is inserted from the front into the locking hole 18 of the retaining ring 16 provided in the lamp unit 15 in advance, and the compression spring 19 is inserted into the protruding end of the adjusting screw 17. Then, the washer plate 20 is screwed together to connect the end surfaces of the stoppers 21, 21 to the retaining ring 1.
6, 16 and compress the compression spring 19 with the retaining ring 16 and washer plate 20, the adjusting screw 17 and the compression spring 19,
The washer plate 20 is attached to the lamp unit 15. Thereafter, the lamp unit 15 is attached to the opening 23 of the housing 22, and the adjusting screw 17 is tightened to the nut member 24 provided in the housing 22, and when the washer plate 20 comes into contact with the housing 22, the assembly is completed.

As another method of assembly, the adjusting screw 17 with the compression spring 19 and washer plate 20 assembled thereon is tightened to the nut member 24 of the housing 22. After that, the lamp unit 15 is inserted into the opening 23 of the housing 22, and the locking hole 18 of the retaining ring 16 is locked with the adjusting screw 17, and then the adjusting screw 17 is tightened to remove the washer. stopper 21 of plate 20,
The assembly may be completed when the end face of the retaining ring 16 comes into contact with the retaining ring 16.

Effects of the invention According to this invention, since the washer plate prevents the compression spring from coming off from the adjusting screw, the adjusting screw, compression spring, and washer plate are installed in the lamp unit in advance. Once assembled, the lamp unit can be assembled into the vehicle housing in this state, and the optical axis of the lamp unit can be set in a fixed direction using the stopper provided on the washer plate, greatly improving assembly work efficiency. do. Furthermore, since each component can be assembled into the lamp unit, component management becomes easier.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a headlamp assembled according to the present invention, Fig. 2 is an enlarged sectional view of the mounting device of the invention, Fig. 3 is a perspective view of a washer plate, and Fig. 4 is a conventional headlamp mounting structure. 5 is a sectional view thereof, and FIG. 6 is a sectional view of a conventional mounting device. 15...Lamp unit, 16...Retaining ring, 17...Adjustment screw, 19...Compression spring, 20
... Watshiya plate, 21 ... Stoppa, 22
……housing.

Claims (1)

[Scope of utility model registration request] Support the lamp unit in the car body housing,
There is also an adjusting screw that adjusts the optical axis of the lamp unit, a compression spring that is wrapped around the adjusting screw to lift the lamp unit from the housing, and a compression spring that extends in the axial direction to regulate the tightening amount of the adjusting screw. What is claimed is: 1. A mounting device for an automobile headlamp, comprising: a stopper integrally formed therein, and a washer plate screwed onto an adjusting screw.