JPH04272601A - Combination head lamp for automobile - Google Patents

Abstract

PURPOSE:To reduce the number of components and simplify the work of assembling a combination head lamp for an automobile by integrating the light reflecting surface forming member of a clearance lamp main body into a cover on which a surface light reflecting film surrounding a light projecting unit is formed. CONSTITUTION:The light reflecting surface forming member 32 of a clearance lamp main body 30 is formed integrally with a cover 50 on which a surface light reflecting film 51 surrounding a light projecting unit 20 is formed. The cover 50 is provided with one upper screw fastening portion 53 for a front lens 60, two sidewardly projecting and recessed lance engagement portions 54, 64, and a lower front side abutting portion. The cover 50 is further provided with a lower side face abutting portion 56 for the lower side face of a lamp body and is disposed inside a lamp room and fixed. With this constitution, the number of components required when assembling the lamp body can be reduced and the work of assembling the lamp can be simplified without enlarging the lamp.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to an automobile headlamp equipped with a light projection unit that is a headlamp body that projects and distributes light source light reflected by a substantially ellipsoidal reflecting mirror using a projection lens. A second lamp body is integrally accommodated in a rectangular container-shaped lamp body adjacent to a light projection unit, which is a first lamp body, and a surface light reflecting film is formed to extend surrounding the light projection unit. The present invention relates to a combination headlamp for an automobile, which is provided with a cover provided with a cover.

0002

2. Description of the Related Art In a conventional headlamp of this type, taking a combination headlamp with an integrated clearance lamp as an example, as shown in FIG. It has a structure in which a light projection unit 3, which is a lamp body, and a clearance lamp body 6 are housed integrally. The light projection unit 3 is a unit body in which a bulb 3a serving as a light source, a substantially ellipsoidal reflecting mirror 3b, and a projection lens 3c are integrated.
The clearance lamp body 6 has a structure consisting of a bulb 6a, which is a light source, inserted into the lamp body 1, and a reflector 6b arranged to surround the bulb 6a. A cover 4 whose surface is mirror-treated is placed around the light projection unit 3 to make the entire interior of the lamp room appear uniformly metallic in color, making the lamp look good when not lit. Reference numeral 7 denotes a cover engagement groove formed inside the seal groove 1a in which the leg of the lens 2 engages, and the cover 4
The cover 4 is placed in the lamp chamber by engaging the peripheral edge of the cover 4 with the groove 7.

0003

However, in the above-mentioned headlamp, the cover 4 and the reflector 6b are separate parts, and there is a problem in that there are a large number of parts, and each must be assembled separately, making the assembly work troublesome. was there. Further, providing the cover engagement groove 7 in addition to the seal groove 1a makes it difficult to mold the lamp body, and also leads to an increase in the size of the lamp, which runs counter to the recent demand in the automobile lamp industry for miniaturization of lamps. In addition, in recent years, the shape of the lamp is often subject to various restrictions due to the lamp mounting space, etc., and it may be difficult to form the cover engagement groove 7 inside the seal groove 1a. There has been a desire for a new method of fixing the cover in place of the conventional method of engaging the cover in an engagement groove.

The present invention was made in view of the problems of the prior art, and its purpose is to simplify the headlamp assembly work by reducing the number of parts when assembling the headlamp, and furthermore, to reduce the number of parts when assembling the headlamp. To provide a combination headlamp for an automobile in which a cover can be arranged and fixed in a light chamber with a simple structure without increasing the size.

[0005]

[Means for Solving the Problems] In order to achieve the above object, a combination headlamp for an automobile according to the present invention includes a lamp body having a horizontally long rectangular front opening; In the lamp chamber formed by the attached front lens, there is a light projection unit, which is a first lamp body in which a light source, a substantially ellipsoidal reflecting mirror, and a projection lens are integrated, and a light projection unit adjacent to this light projection unit. In the combination headlamp for an automobile, the combination headlamp is provided with a cover that is integrally housed with a second lamp body and that surrounds the light projection unit and has a surface light reflecting film formed thereon. The light reflecting surface forming member is integrally formed, and the cover is formed into a horizontally long rectangular shape that substantially aligns with the front opening of the lamp body, and the upper edge of the cover is located at the substantially center position in the left-right direction on the upper side wall of the front lens. The left or right side edge of the cover is engaged with the inside of the corresponding side wall of the front lens by a concave-convex lance at two locations in the vertical direction, and the lower edge of the cover extends forward. The front edge of the extending portion is in contact with the front lens, and the front extending portion of the cover is supported in contact with the lower surface of the lamp body at a position forward of the screw fixing position to the front lens. be.

[0006]

[Operation] Since the light reflecting surface forming member on the second lamp body side is integrated with the cover on which the surface light reflecting film is formed, which surrounds the light projection unit that is the headlamp body, the number of parts that make up the headlamp increases accordingly. The headlamp assembly work is simplified.

[0007] The cover has an upper screw fastening portion with the front lens, two lateral uneven lance engaging portions, and a lower front contact portion, and further has a lower lower surface contact with the lower surface of the lamp body. It is positioned and fixed within the lamp chamber by the section.

[0008]

Embodiments Next, embodiments of the present invention will be described based on the drawings. 1 to 5 show an embodiment of the present invention. FIG. 1 is a front view of a combination headlamp for an automobile according to an embodiment of the present invention, and FIG. 2 is a horizontal sectional view of the headlamp (see FIG. 3 is a longitudinal sectional view taken along the line II-II shown in FIG. 5 is an enlarged perspective view of the screw fastening portion between the cover and the front lens seen from the back side; FIG.
FIG. 2 is a perspective view showing a side uneven lance engaging portion of the cover.

In these figures, reference numeral 10 denotes a lamp body that is shaped like a rectangular container when viewed from the front, and a seal groove 12 is formed at the periphery of the front opening. A leg portion of a front lens 60 is engaged with the seal groove 12 via a sealant, and a lamp chamber is formed by the front lens 60 and the lamp body 10. Inside the lamp body 10, a light projection unit 20 which is a headlamp body, a clearance lamp body 30 which is a second lamp body, and a turn signal lamp body 40 which is a third lamp body are arranged adjacent to each other. hand,
It is integrated as a headlamp.

In the light projection unit 20, a bulb 24, which is a light source for a headlamp, is inserted into a bulb insertion hole 22a formed at the rear top of a substantially ellipsoidal reflector 22. It has a structure in which a projection lens 27 is assembled and integrated in the front via a lens holder 26. The filament of the bulb 24 is located near the first focal point O1 of the reflecting mirror 22, and the light from the bulb 24 reflected by the reflecting mirror 22 crosses the second focal point O2 of the reflecting mirror 22 and is guided forward. The projection lens 27 converts the light into substantially parallel light, which passes through the lens 60 and is projected and distributed in front of the lamp (see FIG. 2). Reference numeral L indicates an optical axis of the headlamp, and the position of the optical axis L can be adjusted by tilting the light projection unit 20 relative to the lamp body 10 using an aiming mechanism (not shown).

A cover 50 is arranged around the light projection unit 20 and extends to surround the projection lens 27, which is the front end of the light projection unit. The cover 50 extends laterally from a position around the light projection unit 20, and a reflector (light reflecting surface forming member) 32, which is a component of the clearance lamp body 30, and a component of the turn signal lamp body 40 are attached to the lateral extension of the cover. A reflector (light reflecting surface forming member) 42 is integrally formed. That is,
The cover 50 and the reflectors 32, 42 are made of a single synthetic resin integrally molded body. and reflector 32,
A metallic-colored mirror surface 51 is formed on the entire front side of the cover 50 including the cover 42 by aluminum vapor deposition, chrome plating, or the like.

At the upper edge of the cover 50, there are shown FIGS.
As shown in FIG. 5, a recess 52 is formed at a substantially central position in the left-right direction, and this recess 52 is engaged with an inner protrusion 62 formed on the inner side of the upper wall of the front lens 60, and is engaged with a screw 53. It has been concluded. Also cover 5
Figures 1 and 6 are on the left side edge of 0 (left side edge when viewed from the front).
As shown, a pair of protrusions 54, 5 are vertically spaced apart
4 is formed, and these protrusions 54, 54 are connected to the front lens 6.
The recesses 64, 64 formed on the inside of the left side wall of 0 are engaged with the recesses 64, 64, respectively. Further, the lower surface area of the cover 50 largely extends forward, and as shown in FIG. It has a downwardly convex mountain-shaped longitudinal section, and this apex area 5
6 is in a state where it is held in contact with the lower surface 11 of the lamp body. Note that this apex angle 56 position is formed at a position d forward of the upper edge screw fastening portion of the cover 50, and combined with the fact that the front edge 55a of the front extension portion 55 abuts against the lower side wall of the front lens 60, The lower edge of the cover 50 is positioned in the front-rear direction. That is, since the support point 56 of the lower edge of the cover 50 by the lower surface 11 of the lamp body is located forward of the screw fastening part which is the support point on the upper edge side of the cover by d, the distance between the screw fastening part and the support point is Since H1 is longer than the vertical distance H2 between the screw fastening part and the lower surface of the lamp body,
Even if an attempt is made to push the cover 50 into the lamp body 10, it will not fit any further. Further, the front edge 55a of the cover front extension portion 55 comes into contact with the front lens 60, and forward movement of the cover 50 is also prevented. Therefore, the lower edge of the cover 50 is positioned and fixed in the front-rear direction.

In this way, the cover 50 covers the front lens 60.
By the two side uneven lance engagement parts with the front lens 60, the one screw fastening part and the lower front edge contact part 55a on the upper part with the front lens 60, and the lower contact support part 56 with the lower surface of the lamp body. positioned with respect to the front lens 60 positioned with respect to the seal groove 12 of the lamp body 10;
That is, it is positioned relative to the lamp body 50 and is fixedly disposed within the lamp chamber formed by the lamp body 10 and the front lens 60.

The clearance lamp body 30 has a cover 5
Reflector 32 integrated into lamp body 1 and lamp body 1
A light source for a clearance lamp is inserted into the bulb insertion hole 14 of the reflector 32 and protrudes forward from a bulb insertion hole 35 formed at the rear top of the reflector 32. and a hood 38 surrounding the valve 34. The hood 38 is a cylindrical body with a closed spherical tip, and has three hook-shaped legs 39 protruding from the base end on the opening side, and an engaging recess formed on the valve insertion hole 35 side. This hook-shaped leg 39 is engaged with 37 to prevent it from coming off. The hood 38 is white (clear), but has the numeral 3 excluding the bulbous tip.
The base end side outer circumferential region indicated by 8a is aluminum vapor-deposited and has the same metallic color as the cover 50. The light emitted from the bulb 34 passes through the clear area at the tip of the hood 38 and goes directly forward, or is reflected by the reflector 32 and goes forward, and is continuously formed on the back side of the area of the front lens 60 excluding the area facing the projection lens. A vertically elongated cylindrical diffusion step 61 diffuses and distributes light in the horizontal direction.

The turn signal lamp body 40 includes a reflector 42 integrated into a cover 50 and a bulb insertion hole 16 of the lamp body 10.
A bulb 4, which is a light source for a turn signal lamp, is arranged to protrude forward from a bulb insertion hole 45 formed at the rear top.
It is composed of 4. Then, the light from the bulb 44 is reflected by the reflector 42 and diffused in the horizontal direction by the vertically long cylindrical diffusion step 61 of the front lens 60. A shade 46 is formed extending forward at the boundary between the clearance lamp side reflector 32 and the turn signal lamp side reflector 42, thereby defining a light chamber space for both lamps.

As described above, in this embodiment, since the clearance lamp reflector 32 and the turn signal lamp reflector 42 are integrally formed on the cover 50, the conventional three parts (cover and two reflectors) are replaced with one part. Since only a few parts are required, the number of parts is reduced, making it easier to assemble the headlamp. In particular, cover 5
0 is engaged with the front lens 60 by a concave-convex lance and screwed together to integrate it in advance, and the integrated front lens 60 of this cover is engaged with the seal leg into the seal groove 12 of the lamp body. By integrating, the front lens 60, cover 50, and lamp body 10 can be easily integrated, so the assembly work of the headlamp is greatly simplified.

Furthermore, since the mirror surface 51 of the cover 50 is continuous as the reflector 32 and the reflector 42, the inside of the lamp appears to be a uniform metallic color through the front lens 60, creating a calm sense of unity when not lit, and improving the appearance. It is excellent. Note that in the above embodiment, the second,
Although a headlamp has been described in which the clearance lamp main body and the turn signal lamp main body, which are the third lamp main body, are integrated into the light chamber together with the light projection unit 20, which is the headlamp main body, the present invention is directed to the light projection unit 20, which is the third lamp main body.
is used as a sub-beam forming lamp, and a second lamp is installed adjacently.
The present invention can also be applied to a combination headlamp in which the reflective headlamp main body, which is the lamp main body, is used as a lamp for forming the main beam, and the parabolic reflector of the second lamp main body is integrated with the cover. Furthermore, a second light projection unit for forming the main beam is provided adjacent to the light projection unit for forming the sub-beam, and a combination headlamp has a structure in which a cover extending surrounding both light projection units is integrated. can also be applied.

[0018]

As is clear from the above description, according to the automobile combination headlamp according to the present invention, the cover on which the surface light reflection film surrounding the light projection unit is formed and the light reflection on the second lamp body side Since the surface forming member is integrated, the number of parts constituting the headlamp is reduced, and assembly of the headlamp becomes easier.

In particular, the cover has one screw fastening part with the front lens, two uneven lance engaging parts with the front lens, and a lower front contact part with the front lens, and is further connected to the lower surface of the lamp body. Since the structure is positioned and fixed within the lamp chamber by the lower lower surface side contact part, it is completely unnecessary to provide an engagement groove for engaging the cover on the lamp body side as in the conventional structure, simplifying the lamp structure. , it becomes possible to make it more compact.

Furthermore, in order to assemble the headlamp, it is sufficient to assemble the cover to the front lens in advance and assemble it into the lamp body. Assembly of the lamp is extremely simplified.

[Brief explanation of the drawing]

FIG. 1 is a front view of a combination headlamp for an automobile according to an embodiment of the present invention.

[Figure 2] Horizontal cross-sectional view of the headlamp (line I shown in Figure 1)
(Cross-sectional view along I-II)

[Fig. 3] A longitudinal cross-sectional view of the headlamp at the headlamp body position (a cross-sectional view taken along line III-III shown in Fig. 1)

[Fig. 4] A longitudinal sectional view of the headlamp at the clearance lamp position (a sectional view taken along line IV-IV shown in Fig. 1)

[Figure 5] Enlarged perspective view of the screw connection between the cover and the front lens, seen from the back side

[Fig. 6] A perspective view showing the lateral uneven lance engagement portion of the cover with the front lens.

[Figure 7] Horizontal cross-sectional view of a conventional headlamp

[Explanation of symbols]

10 Lamp body 20 Light projection unit 22 which is the headlamp body
Approximately ellipsoidal reflecting mirror 24 Headlamp bulb 27 Projection lens 30 Clearance lamp main body 32 which is the second lamp main body Clearance lamp main body side reflector 34 which is a light reflecting surface forming member Clearance lamp bulb 50 Formation of surface light reflecting film A metal-colored mirror surface 53 A fastening screw 54 that fastens the cover and the front lens
Concave and convex lance engagement portion 55a with the front lens of the cover
Front side abutment part 56 of cover front extension part Lower abutment support part 60 of cover Front lens

Claims (1)

[Claims] 1. A light source and a substantially ellipsoidal reflecting mirror are disposed within a lamp chamber formed by a lamp body having a horizontally long rectangular front opening and a front lens assembled to the front opening of the lamp body. A light projection unit, which is a first lamp body integrated with a projection lens, and a second lamp body adjacent to this light projection unit are integrally housed, and extend around the light projection unit. In a conventional automobile combination headlamp provided with a cover formed with a surface light-reflecting film, the cover is integrally formed with the light-reflecting surface forming member of the second lamp body, and the cover has a front opening of the lamp body. The upper edge of the cover is fixed to the upper wall of the front lens at approximately the center position in the left-right direction by a single screw, and the side edge of either the left or right side of the cover is engaged with the inner side of the corresponding side wall of the front lens at two locations in the vertical direction by concave and convex lances, and the lower edge of the cover extends forward so that the front edge of the extension comes into contact with the front lens, and the forward extension of this cover What is claimed is: 1. A combination headlamp for an automobile, characterized in that the part is carried in contact with the lower surface of the lamp body at a position forward of the position where it is screwed to the front lens.