JPH0142241Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a new vehicle headlamp device, and more specifically, it has the advantage of being lighter than conventional devices, while being stronger than conventional devices. The purpose of the present invention is to provide a new vehicle headlamp device that is comparable in quality.

BACKGROUND ART In a headlamp device for a vehicle, particularly for an automobile, light distribution on the road surface and its surroundings is extremely important. Therefore, in the case of vehicle headlight devices, even after the headlight unit is attached to the vehicle body,
It is necessary to be able to adjust the angle of the irradiation optical axis of the headlamp unit with respect to the vehicle body so that the optimum light distribution can always be obtained. There are various types of vehicle headlight devices provided for such purposes, one of which is a mountain ring that holds a headlight unit, and a mountain ring that holds a headlight unit. The mountain ring and the housing have portions that come into sliding contact with each other, and the mountain ring has a sliding portion that is elastically pressed against the sliding portion of the housing. There are structures that are maintained in However,
In the conventional vehicle headlamp device having such a structure, both the mountain ring and the housing are made of ferrous metal, and therefore the overall weight is heavy. Therefore, in order to reduce the weight of the vehicle as part of the means to realize a fuel-efficient vehicle resulting from energy saving measures, for example, the mountain ring and/or the housing may be made of a light material such as a synthetic resin or a light alloy. is possible. However, the mountain ring is elastically pressed against the housing,
Moreover, since they are in sliding contact with each other, a problem arises in that the sliding contact portion of the member made of synthetic resin or light alloy is worn out or deformed each time the mountain ring is tilted.

Therefore, the present invention aims to provide a new vehicle headlight device that is lighter in weight and comparable in strength to conventional vehicle headlight devices. It consists of a mountain ring that holds the unit, and a housing that holds the mountain ring in a tiltable manner and is integral with or separate from the vehicle body. The ring is held in such a way that the sliding contact portion is elastically pressed against the sliding contact portion of the housing, and further,
At least one of the mountain ring and the housing is made of synthetic resin or light alloy, and the sliding contact portion of the member made of synthetic resin or light alloy is made of metal or hard synthetic resin. It is characterized by being covered with a sliding reinforcing piece.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Details of the vehicle headlamp device of the present invention will be explained below with reference to embodiments shown in the accompanying drawings.

1 to 3 show an example 1 of the vehicle headlamp device of the present invention. 2 is a headlight unit. In the headlamp unit 2, the front opening of a reflector 3 made of hard glass, which has a reflecting surface in the shape of a paraboloid of revolution formed on its inner surface, is covered with a lens 4 also made of hard glass. A filament (not shown) is enclosed within the enclosed space. An annular flange 5 projecting outward is formed at the joint between the reflector 3 and the lens 4.

6 is a mountain ring made of synthetic resin. The outer circumferential surface 7 of the mountain ring 6 is formed to form a part of a substantially spherical surface, and a portion of this surface 7 becomes a portion that comes into sliding contact with a housing described later. A sliding contact reinforcing piece 8 made of an iron plate is fixed to this sliding contact portion by adhesive. In addition, this sliding contact reinforcing piece 8
is for reinforcing the sliding contact surface,
As long as it meets this purpose, it may be formed of not only an iron plate but also other metal pieces or a hard and flexible synthetic resin such as Teflon (trade name of fluorine resin manufactured by DuPont, USA). An installation edge 9 is formed on the front opening edge of the mountain ring 6, and several lug pieces 10, 10, 11 are integrally formed that protrude outward from the installation edge 9 forming part. . Engagement notches 12, 12 are formed in the lug pieces 10, 10, respectively, and a locking hole 13 is formed in the lug piece 11, respectively.

A retainer ring 14 cooperates with the mountain ring 6 to hold the headlamp unit 2. This retainer ring 14 has an annular shape, and the front end edge is folded back inward to form a retaining edge 15, and the retainer ring 14 has a locking edge 15 formed at a position corresponding to the ears 10, 10, 11 of the mountain ring 6. Attachment pieces 16, 16, 16 are formed. Thus, the rear surface of the flange 5 of the headlamp unit 2 comes into contact with the installation edge 9 of the mountain ring 6, and,
The engaging edge 15 of the retainer ring 14 is connected to the unit 2.
In this state, the attachment pieces 16, 16, 16 of the retainer ring 14 are fixed to the ear pieces 10, 10, 11 of the mountain ring 6 by screws 17, 17, 17, respectively. ,
Thereby, the headlamp unit 2 is held by the mountain ring 6 with its flange 5 being held between the installation edge 9 of the mountain ring 6 and the engagement edge 15 of the retainer ring 14. . Incidentally, this way of holding the headlamp unit in the mountain ring is merely an example, and it goes without saying that other methods may be used.

18 is a housing made of synthetic resin. The housing 18 is opened toward the front to receive the rear part of the mountain ring 6, and a sliding contact portion 19 that slides into sliding contact with the sliding reinforcing piece 8 of the mountain ring 6 is formed at the front opening edge. If such sliding contact portions 19 are provided in at least three locations at approximately equal intervals in the circumferential direction of the opening edge, the mountain ring 6 can be stably held. Note that the sliding contact portion on the housing side may be formed in an annular shape, and the sliding contact portion on the mountain ring side may be formed as a portion protruding from the outer peripheral surface. and,
The sliding contact portion 19 of the housing 18 is also covered with a sliding reinforcing piece 20 made of the same material as the sliding reinforcing piece 8 and fixed thereto by adhesive.
Further, a flange 21 is formed that protrudes outward from the opening edge of the housing 18.
Self-locking nuts 22, 22 made of nylon resin are fixed to positions corresponding to the mountain ring ears 10, 10 on the top of the figure. Further, a hook portion 23 is formed at a location corresponding to the ear piece 11.

24, 24 is Asia Sting Screw,
A collar 26 is formed near the tip of the head 25, and the annular groove-shaped portion between the collar 26 and the head 25 is the notch 12, 12 formed in the ear pieces 10, 10 of the mountain ring 6. engaged with. and,
The tip of each adjusting screw 24, 24 is screwed into a self-locking nut 22, 22 fixed to the housing 18. Further, a tension spring 27 is tensioned between the locking hole 13 formed in the lug 11 of the mountain ring 6 and the hook portion 23 provided in the housing 18. In this way, the two Asian steering screws 24, 2
4 and one tension spring 27, the mountain ring 6 is held in a resiliently pressed state against the housing 18.

Therefore, in the vehicle headlight device as described above, the adjusting screws 24, 24
self-locking nut 2
By screwing in or unscrewing 2, 22, the distance between the housing 18 and the ear piece 10, 10 engaged with the adjusting screw changes, and the distance between the housing 18 and the ear piece 10, which is engaged with the adjusting screw, changes depending on the degree of the change. As a result, the mountain ring 6 is tilted relative to the housing 18. During the tilting, the sliding contact portions 7 and 19 slide against each other via the sliding reinforcing pieces 8 and 20.

As described above, in the vehicle headlamp device of the present invention, one or both of the mountain ring and the housing are made of synthetic resin or light alloy, so that the overall weight can be reduced. Note that the purpose of weight reduction can be achieved even if only one of the parts is made of iron-based metal. If the housing can be made of ferrous metal, it can also be formed integrally with the vehicle body. In addition, in the vehicle headlamp device of the present invention, the weight is reduced as described above, and the sliding contact portion of the lighter side is covered with the sliding contact reinforcing piece. This part does not wear out or deform, and in terms of strength, it is comparable to conventional ones.

In the above embodiment, all of the sliding reinforcing pieces are fixed by adhesive, but some other fixing means are shown in FIGS. 4 to 7.

The one shown in FIG. 4 has claws 28, 28 facing inward formed on the flange 21a of the housing 18a, and two grooves 29, 29 extending in the front-rear direction and facing each other on the inner surface of the housing 18a. death,
The rear side edge of the sliding reinforcing piece 20a, which has an L-shaped side surface, is inserted into the grooves 29, and the outer end of the front part is engaged with the claws 28, 28.

The one shown in FIG. 5 has a mounting pin 30 protruding from the flange 21b of the housing 18b.
Flange 2 of sliding reinforcing piece 20b with L-shaped side surface
An insertion hole 31 is formed in a portion that is placed along the top of 1b, and a pin 30 is passed through this insertion hole 31.
The portion protruding forward from the insertion hole 31 of No. 0 is caulked, and the sliding reinforcing piece 20b is fixed to the housing 18b.

The one shown in FIG. 6 has two grooves 3 extending in the front-rear direction and facing each other on the inner surface of the housing 18c.
2, 32, a portion 33 of the sliding reinforcing piece 20c along the inner surface of the housing 18c is made into a corrugated plate shape, and the side edges of the corrugated plate-like portion 33 are slightly press-fitted into the grooves 32, 32. This is what I did.

The one shown in FIG. 7 has two insertion holes 34, 3 spaced apart from each other in the flange 21d of the housing 18d.
4, and the flange 21d of the sliding reinforcing piece 20d
Caulking pieces 35, 35 that protrude rearward are formed on both sides of the upper part, and the caulking pieces 35, 35 are inserted into the insertion holes 34, 34 of the flange 21d, and are protruded from the holes 34, 34 to the back side. Caulking piece 3
The sliding contact reinforcing piece 20d is fixed to the housing 18d by caulking the tips of 5 and 35.

[Brief explanation of the drawing]

1 to 3 show an example of the implementation of the vehicle headlamp device of the present invention; FIG. 1 is a front view, and FIG.
The figure is a sectional view taken along the - line in Fig. 1, Fig. 3 is a sectional view taken along the - line in Fig. 1, and Figs. 4 to 7 are modifications of the means for attaching the sliding reinforcement piece to the housing. An example is shown where A is a front view of the main part and B is B of figure A.
-C is a cross-sectional view taken along the line B, and C is a cross-sectional view taken along the line CC in figure A. Explanation of symbols, 1...Vehicle headlight device, 2...
Headlight unit, 6...Mountain ring, 7
...Sliding contact part, 8...Sliding contact reinforcing piece, 18... Housing, 19... Sliding contact part, 20... Sliding contact reinforcing piece.

Claims (1)

[Scope of utility model registration request] It consists of a mountain ring that holds a headlamp unit and a housing that holds the mountain ring in a tiltable manner and is either integral with the vehicle body or separate from the vehicle body, and the mountain ring and the housing have parts that slide into contact with each other. The mountain ring is held in such a way that the sliding contact part of the housing is elastically pressed, and further, at least one of the mountain ring and the housing is made of synthetic resin or light alloy. and the sliding contact portion of the other member made of synthetic resin or light alloy is covered with a sliding contact reinforcing piece made of metal or hard synthetic resin. Light device.