JP2596148Y2 - Automotive headlights - Google Patents

Description

[Detailed description of the invention]

[0001]

INVENTION The present invention relates to relates to a headlight for a motor vehicle having a wide a and sneak unit to the right and left, in particular it is possible to reduce the depth and the amount of light is sufficiently obtained, further left
The lens that is wide on the right and has a wrap around
The present invention relates to a headlamp for a motor vehicle you light-emitting Te.

[0002]

2. Description of the Related Art A conventional headlamp for an automobile will be described below.
This will be described with reference to FIGS. This example describes the headlamp for a motor vehicle having around <br/> interrupt section at the right end. In the figure, reference numeral 100 denotes a housing made of, for example, a synthetic resin. The front surface of the housing 100 is opened so as to recede backward, for example, from the left end to the right end, and a recess 101 is provided on the entire periphery of the front opening of the housing 100. At the rear of the housing 100, a mounting hole 102 is provided.

[0003] Reference numeral 200 denotes a lens. This lens 200
The rear portion of the lens 200 is opened so as to recede backward, for example, from the left end portion to the right end portion, and legs 201 are provided on the entire periphery of the rear opening portion of the lens 200. This lens 20
A wrap portion 202 is provided at the end of the zero, for example, at the right end. The leg 201 of the lens 200 is attached to the recess 101 of the housing 100 by, for example, hot-melt or the like. As a result, a lamp chamber 203 defined by the housing 100 and the lens 200 is formed, and a wraparound portion 202 is formed at an end of the automotive headlamp, for example, at the right end.

[0004] Reference numeral 300 denotes a movable reflector. The front portion of the movable reflector 300 is opened, and a reflection surface 301 such as a paraboloid of revolution or a spheroid is provided on the front side (inner side) of the movable reflector 300 by, for example, aluminum evaporation. A through hole 3 is provided at the rear of the movable reflector 300.
The light source bulb fixture (not shown) is provided on the periphery of the through hole 302. The movable reflector 300 is rotatably attached to the housing 100 by a pivot bearing mechanism (not shown). As a result, the movable reflector 300 is rotatably stored in the lamp room 203.

Reference numeral 400 denotes a light source bulb. The light source bulb 400 includes a glass bulb 401 and the glass bulb 40.
1 traveling beam filament (not shown)
And a passing beam filament (not shown) and a base 402 integrally provided from a rear portion of the glass tube 401.
And a flange 403 integrally provided at an intermediate portion of the base 402.
And the terminal 40 protruding from the rear of the base 402
4 The light source bulb 400 is moved from the rear through hole 302 of the movable reflector 300 to the movable reflector 300.
And the flange portion 403 of the light source bulb 400 is brought into contact with the peripheral edge of the through hole 302 of the movable reflector 300, and the light source bulb 400 is detachably attached to the movable reflector 300 by the fixture of the movable reflector 300. Attach. As a result, the light source bulb 400 is
And the traveling beam filament and the passing beam filament of the light source bulb 400 are disposed on the front reflecting surface 301 side of the movable reflector 300.
Is located in the vicinity of the focal point F.

Reference numeral 500 denotes a base 402 of the light source valve 400.
The rubber cap 501 is in close contact with the rubber cap 501.
00 is a mounting cap for bringing the peripheral edge of the mounting member 100 into close contact with the mounting hole 102 of the housing 100. Although omitted in the drawings, a rubber grommet that has a tubular U-shape and performs a breathing action between the inside of the light chamber 203 and the outside air and a water intrusion preventing action is provided on a breathing cylinder (not shown) of the housing 100. ) Is equipped.

Thus, when the low beam filament of the light source bulb 400 is turned on, light from the low beam filament of the light source bulb 400 is reflected on the reflection surface 301 of the reflector 300, and the reflected light passes through the lens 200. , As the passing beam L,
The light is radiated to the outside in a predetermined light distribution pattern shown in FIG. When the traveling beam filament of the light source bulb 400 is turned on, light from the traveling beam filament of the light source bulb 400 is reflected on the reflection surface 301 of the reflector 300, and the reflected light passes through the lens 200, and As H, the light is radiated outside in a predetermined light distribution pattern shown in FIG.

[0008]

An invention to be Solved] However, in the conventional headlamp automobile described above, its ends, for example by narrowing portion 202 around the right end portion is formed, minute its surrounding interrupt unit 202 However, since the entire lamp protrudes rearward, there is a problem that the depth A of the entire lamp is large.

In order to reduce the depth A of the entire lamp, first, the size of the entire lamp is reduced, and
A case in which only the reflector 300 is reduced without changing the size of the surface to reduce the depth of the reflector 300 can be considered. However, in the above case, both have problems such as a shortage of light quantity.

[0010] The purpose of the present invention is to widen left and right and
In a headlamp for an automobile with a rim, the depth can be reduced, the light amount can be obtained sufficiently, and
A wide and wraparound lens is launched over the entire surface
It is to provide an automobile headlamp you light.

[0011]

This invention SUMMARY OF THE INVENTION To solve the problems described above, a wide and and around <br/> Ru headlamp vehicle having a interrupt section on the left and right, the housing And a lens to define a lamp room, a reflector is provided in the lamp room, and the reflector has a small reflecting surface to reduce the depth.
Kushida a first reflecting surface, losing small the first reflecting surface
A reflective surface, and placed on the side of
Formed integrally a and a second reflecting surface, respectively, the reflation
Is rotatably mounted on the housing, and the first
A first light source bulb provided with a traveling beam filament and a passing beam filament on a reflecting surface, and lighting of the traveling beam filament of the first light source bulb and lighting of the passing beam filament on the second reflecting surface; A second light source bulb having a supplementary beam filament which is turned on at the same time is provided.

[0012]

[Function] The present invention has the following functions and effects by the above configuration.
Can be achieved. First, the reflecting surface of the first reflecting surface
By reducing the size, the depth can be reduced
You. In addition, the first reflecting surface is made smaller and the reflecting surface that is lost
A sufficient amount of light can be obtained by replenishment on the second reflecting surface.
You. Further, the second reflection surface may be disposed on the side of the wraparound portion.
With this, a lens that is wide left and right and has a wraparound part
Will emit light over the entire surface. Moreover, the first light source
Filament or passing beam for traveling beam of valve
And use off Iramento, replenishment beam of the second light source bulb Fi
By turning on the lamp and the
When using a vehicle headlamp, the entire surface of the lens always emits light,
Looks better than ones that emit light on one side
It is. In addition, the first reflecting surface and the second reflecting surface are reflectors.
And the reflector is
By being rotatably mounted on the jing,
Simultaneous adjustment of the optical axis of the first reflecting surface and adjustment of the optical axis of the second reflecting surface
It is possible to do.

[0013]

FIG. 1 shows an embodiment of a vehicle component according to the present invention.
This will be described with reference to FIG. This example describes the headlamp for a motor vehicle having around interrupt section at the right end. In the figure,
3 and 4 denote the same components. In the figure, reference numeral 1 denotes a housing made of, for example, a synthetic resin.
In the housing 1, the depth of the housing itself is reduced by the depth of the reflector 3 described later. The front surface of the housing 1 is opened so as to retreat backward from the left end to the right end, for example.
A recess 10 is provided on the entire peripheral edge of the front opening of the housing 1. A first mounting hole 11 is provided at the center of the rear part of the housing 1 and a second mounting hole 12 is provided on the right side of the rear part of the housing 1.

Reference numeral 2 denotes a lens. The rear part of the lens 2 is opened so as to recede backward from the left end to the right end, for example, and legs 20 are provided on the entire periphery of the rear opening of the lens 2. A wraparound portion 21 is provided at an end of the lens 2, for example, a right end. Leg 2 of this lens 2
0 is attached to the concave portion 10 of the housing 1 by, for example, hot-melt adhesive bonding and sealing. As a result, the lamp chamber 22 defined by the housing 1 and the lens 2 is formed, and the wraparound portion 21 is formed at an end of the vehicle headlamp, for example, at the right end.

Reference numeral 3 denotes a movable reflector. A front portion of the movable reflector 3 is opened, and a first reflecting surface 31 such as a paraboloid of revolution is provided from the left end to the right end on the front side (inner side) of the movable reflector 3 by, for example, aluminum evaporation. A second reflecting surface 32 such as a paraboloid of revolution is provided at the right end of the front side of the movable reflector 3 by, for example, aluminum evaporation. That is, the first reflecting surface 31 is
It corresponds to the reflective surface of a conventional automotive headlamp,
In order to make the depth smaller, the reflection surface is made smaller.
is there. On the other hand, the second reflecting surface 32 is smaller than the first reflecting surface 31.
It has a reflective surface that has been lost, and
It is arranged on the 21 side.

A first through hole 33 and a second through hole 34 are provided at a position slightly to the right of the center of the first reflecting surface 31 of the movable reflector 3 and substantially at the center of the second reflecting surface 32, respectively. Light source bulb attachments (not shown) are provided on the periphery of the first through hole 33 and the second through hole 34, respectively. The movable reflector 3 is rotatably mounted on the housing 1 by a pivot bearing mechanism (not shown). As a result,
The movable reflector 3 is rotatably housed in the lamp chamber 22.

Reference numeral 4 denotes a first light source bulb. The first light source bulb 4 includes a glass bulb 40, a traveling beam filament (not shown) and a passing beam filament (not shown) disposed in the glass bulb 40, and the glass bulb 40. A base 41 provided integrally from the rear of the base 41, a flange 42 provided integrally with an intermediate part of the base 41, and a terminal 43 protruding from the rear of the base 41. The first light source bulb 4 is inserted from the first through hole 33 of the movable reflector 3 to the first reflecting surface 31 side of the movable reflector 3, and the flange 42 of the first light source bulb 4 is inserted into the first transparent hole 3 of the movable reflector 3. The movable reflector 3 is brought into contact with the periphery of the hole 33 and
The first light source bulb 4 is detachably attached to the movable reflector 3 by the attachment of (1). As a result, the first light source bulb 4 is disposed on the first reflecting surface 31 side of the movable reflector 3, and the traveling beam filament and the passing beam filament of the first light source bulb 4 are connected to the first reflecting surface 31 of the movable reflector 3. Is located near the focal point F1.

Reference numeral 6 denotes a second light source bulb. The second light source bulb 6 includes a glass tube 60, a filament (not shown) disposed in the glass tube 60, a base 61 integrally provided from the rear of the glass tube 60, and the base. 6
A flange portion 62 is provided integrally with an intermediate portion of the base 1 and a terminal 63 is provided to project from a rear portion of the base 61. This second
The light source bulb 6 is inserted from the second through hole 34 of the movable reflector 3 toward the second reflection surface 32 of the movable reflector 3, and the flange 62 of the second light source bulb 6 is inserted into the second
The second light source bulb 6 is detachably attached to the movable reflector 3 by the fixture of the movable reflector 3 so as to be brought into contact with the peripheral edge of the through hole 34. As a result, the second light source bulb 6 is disposed on the second reflection surface 32 side of the movable reflector 3, and the filament of the second light source bulb 6 is located near the focal point F2 of the second reflection surface 32 of the movable reflector 3.

The rubber caps 50 and 52 are in close contact with the base 41 of the first light source valve 4 and the base 61 of the second light source bulb 6, and 51 and 53 are the rubber caps 50 and 52, respectively.
Of the first mounting hole 11 of the housing 1 and the second
A mounting cap to be attached to the mounting hole 12. Although omitted in the drawings, the lamp chamber 2 has a tubular U-shape.
A grommet made of rubber that performs a breathing action between the inside and outside air and a water intrusion prevention action is mounted on a breathing cylinder (not shown) of the housing 100.

In this embodiment, a vehicle headlight according to the present invention is provided.
The lamp has the above configuration, and an example of its use will be described below. First, the passing beam filament of the first light source bulb 4 and the filament of the second light source bulb 6 are simultaneously turned on. Then, light from the passing beam filament of the first light source bulb 4 is reflected on the first reflection surface 31 of the movable reflector 3, while light from the filament of the second light source bulb 6 is reflected on the second reflection surface 32 of the movable reflector 3. 4A, the reflected light passes through the lens 2, and as shown in FIG. 4A, a low beam (shown by a solid line) L is radiated to the outside in a predetermined light distribution pattern, and a supplementary beam ( S (shown by a broken line) is added to the above-mentioned low beam L and is radiated to the outside in a predetermined light distribution pattern. At this time, the light from the low-beam filament of the first light source bulb 4 and the light from the filament of the second light source bulb 6 are reflected by the first reflection surface 31 and the second reflection surface 32 of the movable reflector 3, so that the lens 2, light is emitted over substantially the entire surface, that is, over the entire lamp room 22.

The filament for the traveling beam of the light source bulb 400 and the filament of the second light source bulb 6 are simultaneously turned on. Then, light from the passing beam filament of the first light source bulb 4 is reflected on the first reflection surface 31 of the movable reflector 3, while light from the filament of the second light source bulb 6 is reflected on the second reflection surface 32 of the movable reflector 3. 4A, the reflected light passes through the lens 2, and as shown in FIG. 4B, a traveling beam (shown by a solid line) H is radiated to the outside in a predetermined light distribution pattern, and a supplementary beam ( S (shown by a broken line) is added to the above-mentioned low beam L and is radiated to the outside in a predetermined light distribution pattern. At this time, the light from the traveling beam filament of the first light source bulb 4 and the light from the filament of the second light source bulb 6 are reflected on the first reflection surface 31 and the second reflection surface 32 of the movable reflector 3, so that the lens 2, light is emitted over substantially the entire surface, that is, over the entire lamp room 22.

As described above, in the vehicle headlamp of the present invention in this embodiment, the size of the first reflecting surface 31 is reduced.
Accordingly, the depth of the reflector 3, that is, the depth a of the entire lamp can be reduced. Also, the first reflecting surface
The reflection surface that was lost by reducing the reflection surface of No. 31 and this reflection
By replenishing the surface with the second reflecting surface 32, the traveling beam or the passing beam from the first light source bulb 4 on the first reflecting surface 31 is converted from the newly formed second light source bulb 6 on the second reflecting surface 32. Are replenished.
As a result, a sufficient amount of light can be obtained. Furthermore, the second reflecting surface
32 is arranged on the wraparound portion 21 side,
The lens 2 is entirely having a wide a and sneak portion 21
It will emit light over the whole area. Moreover, the first light source bulb 4
Traveling beam filament or passing beam filament
Filament for the supplementary beam of the second light source bulb 6
The lamp lights up at the same time as the
When using a headlight, the entire surface of the lens 2 always emits light,
Appearance is improved compared to one that emits light on one side
You. In addition, the first reflecting surface 31 and the second reflecting surface 32
And is formed integrally with the
That the housing 3 is rotatably attached to the housing 1.
Thus, the optical axis adjustment of the first reflection surface 31 and the second reflection surface 32
And the optical axis adjustment can be performed at the same time.

[0023] In the above embodiment has been described headlamp for a motor vehicle having around <br/> interrupt section at the right end,
This invention can be <br/> also used headlight for a motor vehicle having a left end around interrupt unit.

[0024]

[Effect of the Invention] As is apparent from the above description, the vehicle headlamp of the present invention has a wide left and right side and a wraparound portion.
In vehicle headlights, the depth can be reduced,
In addition, a sufficient amount of light is obtained, and it is wide and
The lens with the concave portion emits light over the entire surface, and
When used, the entire surface of the lens always emits light,
The optical axis adjustment and the optical axis adjustment of the second reflecting surface can be performed simultaneously.
It becomes possible.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing one embodiment of a vehicle headlamp according to the present invention.

2 (A) is a light distribution pattern of a low beam of the automotive headlamp according to the present invention in FIG. 1, and FIG. 2 (B) is also a light distribution pattern of a traveling beam.

FIG. 3 is a cross-sectional view showing a conventional automotive headlamp.

4A is a light distribution pattern of a low beam of the conventional automotive headlamp in FIG. 3, and FIG. 4B is a light distribution pattern of a traveling beam.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Housing, 2 ... Lens, 21 ... Surrounding part, 22
... light room, 3 ... reflector, 31 ... first reflection surface, 32 ... second reflection surface, 4 ... first light source bulb, 6 ... second light source bulb.

Claims (1)

(57) [Scope of request for utility model registration] 1. A headlight for a motor vehicle having a wide and and around interrupt unit on the left and right, defining the lamp chamber by a housing and a lens, arranged a reflector to the lamp chamber, in that the reflector In an automotive headlamp equipped with a light source bulb, the reflector has a reflecting surface to reduce the depth.
A first reflecting surface which is smaller, by reducing the first reflecting surface
It has a reflective surface that has been lost and is located on the
And a second reflecting surface disposed thereon are formed integrally with each other, and the reflector is rotatably attached to the housing.
Vignetting is, the light source bulb is equipped be one that is mounted on the first reflecting surface, a first light source bulb and a high-beam filament and a low beam filament, the second reflecting surface And a second light source bulb having a supplementary beam filament which is turned on simultaneously with the lighting of the traveling beam filament of the first light source bulb and the lighting of the passing beam filament. An automotive headlamp characterized by the following.