JP3256403B2 - Automotive headlights - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a headlamp for an automobile in which a low beam headlamp and a fog lamp are integrated.

[0002]

2. Description of the Related Art A headlamp and a fog lamp are both mounted on a front portion of an automobile. Conventionally, as shown in FIGS. 9 to 11, a headlamp a and a fog lamp b are provided adjacent to each other. Headlights are known. The head lamp a and the fog lamp b include a reflector 2a having a bulb 3a (3b) as a light source inserted therein.
(2b) is housed in the lamp body 1a (1b), and a pair of aiming screws 5a (5b), 6a are provided between the reflector 2a (2b) and the lamp body 1a (1b).
(6b) and an aiming mechanism composed of a ball joint 7a (7b) forming a swing fulcrum are interposed, and the respective aiming mechanisms independently adjust the reflector 2a (2b) in the vertical and horizontal directions (ramp). Of the optical axis La,
Lb can be adjusted).

Reference numeral 8a (8b) denotes a lamp body 1a.
Reference numeral c denotes a front lens attached to the front opening of (1b), a frame-shaped extension reflector disposed on the front surface of the reflector 2a for concealing a gap between the lamp body 1a and the reflector 2a, and reference numeral 2a _1. , 2a
₂ is a bracket protruding in an L-shape on the back of the reflector 2a, collect-nut 5a _1, which is fitted to the bracket 2a ₁ is the aiming screw 5a and screwed, is fitted to the bracket 2a ₂ The part 7a ₂ is the lamp body 1
It has a structure for supporting the ball portion 7a ₁ which is fixed to a.

[0004]

However, in the above-mentioned prior art, since the lamp body and the reflector have independent structures for each lamp, the number of parts is large, the mounting space to the vehicle body is large, and the lamp assembly and vehicle body There is a problem that it takes time since the mounting work on the lamps is performed independently for each lamp.

Further, each lamp is independent
Aiming adjustment for each lamp
Have to do, but only with the aiming screw
The optical axes La and Lb change greatly due to a large rotation.
In order to make the optical axes La and Lb of both lamps coincide,
The work of adjusting the timing was very troublesome. Also riff
The rectifier 2a is made of a synthetic resin injection molded body.
But in the front-back direction with respect to the reflector 2a (FIG. 11, left)
If you try to mold with a mold that can be released to the right
Bracket 2 formed on the back of the rectifier 2a
a₁, 2a _TwoP between the reflector and the reflector 2a₁, P_TwoBut
Form reflector 2a to be undercut
To do this, use a mold that can be released in the front-rear direction of the reflector.
Figure 11, undercut section that can slide up and down
Complex and large-sized mold incorporating a slide mold for molding
There was also a problem that it was necessary.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and a first object of the present invention is to provide a simple structure by integrating components of a headlamp and a fog lamp, thereby assembling and assembling a vehicle. It is an object of the present invention to provide an automotive headlamp that can be easily mounted on a vehicle and adjusted in aiming. A second object of the present invention is to make it possible to mold a reflector forming member provided with a vertical standing wall for arranging the aiming mechanism component without using a slide mold structure.

[0007]

In order to achieve the first and second objects, in a vehicle headlamp according to the first aspect, a first light source contributing to formation of a light distribution of a headlamp. A reflector component formed integrally with an object surface reflector and a second parabolic reflector contributing to the formation of the light distribution of the fog lamp by adjoining the reflector component in a single lamp body, wherein the reflector component is Headlight for a vehicle, which is tiltably adjustable by one aiming mechanism interposed between the reflector constituent member and the lamp body
A is a first parabolic reflector formed side of the front Symbol reflector component, to support the aiming mechanism is composed of a single fulcrum of inclination the vertical direction adjusting the aiming screw with left-right direction adjusting aiming screw The first reflector and the second reflector in the reflector component are formed to be separated from each other by a predetermined distance in the left-right direction, and a part of the upright wall forming the reflector separation region is formed by the first reflector and the second reflector. The reflector is formed behind the opening end of the reflector, and a part of the aiming mechanism constituting member is disposed on the standing wall lowered to the rear. Those in claim 2, in which the automotive headlamp according to claim 1, and in front of the reflector component, to provide an extension reflector to hide the gap and the reflector spacing region between the lamp body and the reflector component It is. In order to achieve the first and second objects,
4. The automotive headlamp according to claim 3, wherein the first parabolic reflector contributes to the formation of the light distribution of the low beam headlamp and the second parabolic reflector contributes to the formation of the light distribution of the fog lamp. A lamp body reflector unit integrally formed adjacent to the left and right is housed in a single lamp housing, and the lamp body reflector unit is interposed between the lamp body reflector unit and the lamp housing. A headlight for an automobile, which is tiltably supported by an aiming mechanism, wherein a first parabolic reflector forming side of the lamp body / reflector unit is provided with one tilting fulcrum and a vertical adjusting aiming screw. It is supported by an aiming mechanism composed of an aiming screw for adjusting the horizontal direction. The first reflector and the second reflector in the lamp body / reflector unit are formed so as to be spaced apart from each other by a predetermined distance in the left-right direction, and a part of the upright wall forming the reflector separation region is formed by the first reflector and the first reflector. The second reflector is formed behind the opening end of the second reflector, and a part of the aiming mechanism component is disposed on the standing wall lowered to the rear. According to claim 4, the vehicle according to claim 3
In the headlamp for use, in front of the first and second reflectors
The reflector side edge area and the reflector separation
I will provide an extension reflector to hide the area between
It is something that has been done.

[0008]

A lamp body, a reflector constituent member and an aiming mechanism (in the third aspect , a lamp body / reflector unit and an aiming mechanism) which are separately provided for each of the lamps constituting the headlight are respectively provided as headlights. The number of parts that make up the headlight is small,
The configuration is simple, the lamp is small, the space for mounting the lamp on the vehicle body is small, and the assembling work of the lamp and the mounting work on the vehicle body are facilitated. In addition, the reflector of the headlamp and the reflector of the fog lamp are integrated as a reflector constituent member (in claim 3 , the reflector of the headlamp and the reflector of the fog lamp are integrated as a lamp body / reflector unit) to achieve one aiming. Since the mechanism can be tilted integrally, the aiming adjustment work becomes easy. In the first aspect , the reflector of the headlamp, which is generally larger and heavier than the reflector of the fog lamp, that is, the first reflector forming area is supported by an aiming mechanism including a pair of aiming screws and one swing fulcrum. Because
The reflector constituent member can be smoothly tilted, and there is no possibility that the reflector constituent member swings (the cutoff line in the light distribution pattern created by the headlight swings) due to vibration transmitted from the vehicle body or the like. Further, claim
In 1 , a part of an upright wall which does not function as a reflector between the first reflector and the second reflector in the reflector constituent member is formed behind the open ends of the first reflector and the second reflector, and is lowered to the rear. Since a part of the aiming mechanism component is arranged on the vertical wall, the surrounding wall of the aiming mechanism component is not undercut when forming the reflector component. The reflector constituent member can be formed by a pair of molds that can be released only from the reflector. According to the second aspect , the extension reflector hides a gap between the lamp body and the reflector forming member and a region between the reflectors where the upright wall for arranging the aiming mechanism component is formed, so that the entire lamp chamber looks bright mirror-colored.

[0009]

Next, an embodiment of the present invention will be described with reference to the drawings. FIGS. 1 to 6 show an automotive headlamp according to an embodiment of the present invention, in which the present invention is applied to a reflector movable type headlamp. FIG. 1 is a front view of the headlamp. FIG. 2
Is a horizontal sectional view of the headlamp (a sectional view along line II-II shown in FIG. 1), and FIG. 3 is a vertical sectional view of the headlamp (a line III shown in FIG. 1).
FIG. 4 is a longitudinal sectional view of the headlamp (a sectional view along line IV-IV shown in FIG. 1), and FIG. 5 is a longitudinal sectional view of the headlamp (shown in FIG. 1). 6 is a horizontal cross-sectional view (cross-sectional view along line VI-VI shown in FIG. 1) of the headlamp at the position where the aiming screw for vertical adjustment is provided.

In these figures, reference numeral 10 denotes a container-shaped lamp body having an opening on the front surface. A front lens 12 is attached to a rectangular front opening of the lamp body 10, and the lamp body 10 and the front lens 12 are connected to each other. The lamp room space is formed by this. In this lamp room space, the first parabolic reflector 21 contributing to the formation of the light distribution of the head lamp A and the first reflector 21 contributing to the formation of the light distribution of the fog lamp B have a smaller left and right width. A reflector component 20 is integrally formed in which two parabolic reflectors 22 are separated from each other by a predetermined distance to the left and right. Reference numeral 20a denotes an inter-reflector region formed between the reflectors 21 and 22 at a substantially central portion in the left-right direction of the reflector component member 20 and not functioning as a reflector.
b and 20c are left and right side edge regions formed on the left and right side edges of the reflector component member 20 and not functioning as reflectors.

Bulb insertion holes 23 and 24 are formed at the rear tops of the reflectors 21 and 22, respectively, and bulbs 25 and 26 as light sources are inserted into the valve insertion holes 23 and 24, respectively. The bulb 25 has two filaments separated in the front-rear direction. The light distribution of the traveling beam is formed by the emission of the filament at the rear position corresponding to the focal position of the reflector 21, and the light distribution of the traveling beam is slightly ahead of the focal position of the reflector 21. The light distribution of the passing beam is formed by the light emission of the filament in.

The reflector constituent member 20 is formed by the aiming mechanism 30 comprising one ball joint 32 and two aiming screws 34 and 36 (up and down adjusting aiming screw 34, left and right adjusting aiming screw 36). Is supported so that it can be tilted up, down, left, and right directions.
By rotating the 36, the reflector component 20
Can be tilted around the horizontal axis Lx and the vertical axis Ly.

That is, the ball joint 32 is formed by the upright wall 2 formed in the inter-reflector region 20a of the reflector component 20.
The ball part 33a fixed to 7 is supported by a ball receiving part 33b formed on the rear wall of the lamp body 10, and constitutes a tilting fulcrum of the reflector component 20 (reflectors 21, 22). . Also aiming screw 3
Reference numerals 4 and 36 are rotatably supported on the rear wall of the lamp body 10, respectively, and extend through the rear wall of the lamp body 10 back and forth, and the front ends of the screws are connected to the reflectors 21 and 22 of the reflector component 20. A nut 35 fitted in a region that does not function as
37. As shown in FIG. 1, the ball joint 32 and the aiming screws 34 and 36 are arranged so as to be orthogonal to each other when viewed from the front. When the aiming screws 34 and 36 are turned, the nuts 35 and 37 are turned. It advances and retreats along the aiming screws 34 and 36, and the reflector component 20 (reflector 2)
1, 22) are tilted together about a horizontal axis Lx (an axis passing through the ball joint 32 and the nut 37) and a vertical axis Ly (an axis passing through the ball joint 32 and the nut 35), and the head lamp A and the fog lamp B The optical axes L ₁ and L ₂ can be tilted and adjusted integrally in the vertical and horizontal directions.

The reflector component 20 is an integrally molded body of synthetic resin. On the back side of the reflector component 20, a vertical standing wall 27 for mounting the ball portion 33a of the ball joint 32 and an aiming screw 34 for vertical adjustment are provided. The vertical upright wall 28 to which the nut 35 to be screwed is attached is provided, but in this embodiment, a cylindrical rear bulging portion that opens forward is formed at the upper and lower positions of the inter-reflector region 20a, so that the inter-reflector is formed. Predetermined upper and lower portions of the wall where the region 20a is formed are formed at positions rearward of the front opening portions (opening ends) of the reflectors 21 and 22, and the bulging vertical end face of the rear bulging portion (the vertical standing wall lowered rearward). ) Form a standing wall 27 for disposing the ball joint 32 and a standing wall 28 for mounting the nut 35.

That is, in this embodiment, the area around the vertical walls 27 and 28 for disposing the aiming mechanism is the reflector component 2
Since it does not become an undercut when molding 0,
The reflector component 20 can be formed using a mold having a structure that can be released only in the front-rear direction (vertical direction in FIG. 2 and horizontal direction in FIG. 3). The rear bulging portions forming the standing walls 27 and 28 also have the effect of increasing the rigidity of the reflector component member 20 by increasing the section modulus of the flat inter-reflector region 20a.

Reference numeral 18 denotes a reflector component 20 (reflectors 21 and 22) and the lamp body 1 sandwiched between the front opening of the lamp body 10 and the front lens 12.
This is a rectangular frame-shaped extension reflector that extends so as to hide the gap between 0, the inter-reflector area 20a and the left and right side edge areas 20b and 20c. That is, the extension reflector 18 extends along the inside of the side wall of the lens 12 and has a predetermined front-rear length in which the outer edges including the left and right side edge regions 20b and 20c of the reflector component member 20 are hidden when viewed from the front. Strip-shaped extension 18a _{1 having}
A strip-shaped region 18 extending vertically corresponding to the inter-reflector region 20a of the reflector component member 20 is provided on the skirt-shaped extension reflector main body 18a in which
b is an integrated molded body of a synthetic resin having a coupled structure. The surface of the extension reflector 18 is subjected to the same aluminum vapor deposition processing as that of the reflectors 21 and 22, so that the entire interior of the lamp room when not lit looks like a metal color having a depth, and the appearance appearance is good. Has become.

In front of the valves 25 and 26, a valve 2 is provided.
This shields light traveling from the filaments 5 and 26 toward areas other than the predetermined effective reflection surfaces of the reflectors 21 and 22 to contribute to formation of a predetermined light distribution and to prevent direct light from being emitted from the front lens 12. Shades 40, 42 are provided to prevent the shade. Shades 40 and 42 have legs 41 and 43
(Refer to FIGS. 4 and 5). On the other hand, the bosses 21a, 2 are provided on the reflector constituent member 20 (reflectors 21, 22).
2a, the legs 41, 43 are fixed to the bosses 21a, 22a by screws, and the shades 40, 42 are fixedly integrated with the reflector component 20 (reflectors 21, 22).

At a position facing the bulb insertion holes 23 and 24 on the rear wall of the lamp body 10, an opening 10 for bulb replacement is provided.
a, 10b are respectively provided, and the openings 10a, 10b
Includes rubber dustproof and waterproof covers 11a and 11b, respectively.
Is installed. As shown in FIG. 6, a bulb insertion hole 10c is provided in the vicinity of the bulb replacement opening 10b of the fog lamp B, and the clearance lamp bulb 50 inserted in the hole 10c is fitted with the reflector 22.
Is formed so as to protrude forward through the hole 22a formed in the clearance lamp C.

On the left side (left side when viewed from the front) of the lamp body 10, a bulb 55, which is a light source, is inserted into a shallow container-like lamp body 54. A side turn signal lamp D in which a lens 56 is assembled and integrated is arranged. An inner lens 57 having a prism step is disposed inside the front lens 56, and has a structure in which light from the bulb 55 can be widely distributed to the side of the vehicle body.

FIGS. 7 and 8 show a vehicle headlamp according to a second embodiment of the present invention, in which the present invention is applied to a headlamp of a movable unit type, and FIG. FIG. 8 is a front sectional view of the headlight, and FIG.
VIII). Reference numeral 60 is a container-like lamp body to the front of the opening, on the inner peripheral surface of the lamp body 60, a first parabolic reflector 61 contributes to the formation of the light distribution of the head lamp A _1, fog B ₁ And a second parabolic reflector 62 contributing to the formation of the light distribution of the above. Reflector 61,
Bulb insertion holes 63 and 64 are formed at the rear top of the tube 62, and the bulb 6 serving as a light source is inserted into the valve insertion holes 63 and 64.
5 and 66 are inserted, and a front lens 66 is attached to a front opening of the lamp body 60 to be integrated as a lamp body / reflector unit U.

The reflector 61 of the lamp body 60
A rear swelling portion that opens forward is formed in a region that does not function as a reflector between the reflector 62 and the side edge portion (the inter-reflector region 60a and the reflector side edge region 60c), and the rear swelling portion protrudes. The vertical end faces constitute standing walls 67, 68, and 69 for disposing the aiming mechanism 30 described later.

The lamp body / reflector unit U is accommodated in a lamp housing H and is tiltably supported by an aiming mechanism 30 interposed between the unit U and the lamp housing H. The aiming mechanism 30 is rotatably supported by the lamp housing H, and has a pair of aiming screws 34,
36, and a ball joint 32 forming a swing fulcrum. The front ends of the aiming screws 34, 36 are fitted to standing walls 68, 69 lowered to the rear of the inter-reflector area 60a and the reflector side edge area 60c. Nut 3
The ball portion 33a, which is screwed to the first and fifth reflectors 37 and is fixed to the standing wall 67 lowered backward between the reflectors 21 and 22, is supported by a ball receiving portion 33b formed in the lamp housing H. And the turning operation of the aiming screw 34, the unit U is the horizontal axis Lx, tilts the vertical axis Yy around the optical axis L ₁ and fog of the optical axis L ₂ of the headlamp to be tilted adjusted together it can.

The other parts are the same as those of the first embodiment, and the same reference numerals are used to omit redundant explanations.

[0024]

As is apparent from the above description, according to the automotive headlamp according to the present invention, the lamp body, the reflector constituting member and the aiming, which have conventionally been provided separately for each lamp constituting the headlamp. Mechanism (in claim 3 , a lamp body / reflector unit and an aiming mechanism)
However, since only one headlight is required, the number of parts that make up the headlight is small, the configuration is simple, the headlight is compact, and the space for mounting the lamp on the vehicle body is small. Assembly work and assembly work to the vehicle body are also facilitated. In addition, since the reflector of the headlamp and the reflector of the fog lamp are integrated as a reflector constituent member (in claim 3 , the reflector of the headlamp and the reflector of the fog lamp are integrated as a lamp body / reflector unit). Aiming adjustment of the headlamp and the fog lamp can be performed simultaneously by the aiming mechanism described above, and the operation of matching the optical axes of the headlamp and the fog lamp as in the related art is not required at all, and the aiming adjustment operation is greatly simplified. According to the first aspect , the reflector forming region of the head lamp, which is generally larger and heavier than the reflector forming region of the fog lamp, is supported by an aiming mechanism including a pair of aiming screws and one swing fulcrum. Therefore, the reflector constituent member can be smoothly tilted, and there is no problem that the reflector constituent member swings (the cutoff line swings) due to vibration transmitted from the vehicle body or the like.
In claim 1 , a part of the upright wall of the reflector separation region that does not function as a reflector is lowered rearward, and a part of the aiming mechanism constituent member, for example, an up / down direction adjusting aiming screw or a swing fulcrum is attached to the upright wall lowered backward. Since it is arranged, there is no undercut portion between the reflector component and the standing wall for disposing the reflector component, unlike the conventional reflector and the bracket for disposing the aiming mechanism component. Therefore, the reflector component can be used without using a slide mold as in the past.
Molding can be performed using a mold that can be released only in the front-rear direction of the reflector, and the structure of the mold for forming a reflector component is simple and compact, and molding is easy. According to the second aspect , the extension reflector hides parts other than the reflector in the lamp body (in the fourth aspect, the lamp body / reflector).
The entire interior of the lamp room looks bright mirror-colored (with the parts other than the reflectors inside the unit hidden) , so it looks good as a headlight.

[Brief description of the drawings]

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

FIG. 2 is a horizontal sectional view of the headlight (a sectional view taken along line II-II shown in FIG. 1).

FIG. 3 is a vertical sectional view of the headlight (a line III-III shown in FIG. 1).
Sectional view along

FIG. 4 is a longitudinal sectional view of the headlight (a sectional view taken along line IV-IV shown in FIG. 1).

FIG. 5 is a vertical sectional view of the headlight (a sectional view taken along line VV shown in FIG. 1).

FIG. 6 is a horizontal cross-sectional view of the headlamp at a position where a vertical adjustment aiming screw is provided (a cross-sectional view along line VI-VI shown in FIG. 1);

FIG. 7 is a front view of an automotive headlamp according to a second embodiment of the present invention.

FIG. 8 is a horizontal sectional view of the headlight (a line VIII-VI shown in FIG. 7).
Sectional view along II)

FIG. 9 is a front view of a conventional headlight.

FIG. 10 is a horizontal sectional view of the headlight.

FIG. 11 is a longitudinal sectional view of the headlight (a sectional view taken along line XI-XI shown in FIG. 9).

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Lamp body 18 Extension reflector 20 Reflector constituent member 20a Inter-reflector area not functioning as a reflector 20b, 20c Side edge area not functioning as a reflector 21 First reflector 22 Second reflector 25, 26, 65, 66 Light source bulb 27 28, an upright wall for arranging an aiming mechanism 30 an aiming mechanism 32 a ball joint 33a as a component of an aiming mechanism 33a a ball portion 33b, a ball receiving portion 34, an aiming screw for up and down adjustment as a component of an aiming mechanism 35 a nut as a component of an aiming mechanism 36 aiming Aiming screw 37 for right and left adjustment which is a mechanism constituent member 37 Nuts 40 and 42 which are aiming mechanism constituent members Shade 60 Lamp body 60a A reflector which does not function as a reflector It does not function as a director between the regions 60c reflector side edge region 61 first reflector 62 second reflector A, A ₁ headlamp B, B ₁ fog H lamp housing U lamp body reflector unit

Continued on the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) F21S 8/10 B60Q 1/06 B60Q 1/20 F21V 14/04

Claims (4)

(57) [Claims] 1. A first parabolic reflector that contributes to the formation of a light distribution of a low beam headlamp and a second parabolic reflector that contributes to the formation of a light distribution of a fog lamp are integrated right and left adjacent to each other. An automobile in which a reflector component formed in a vehicle body is accommodated in a single lamp body, and the reflector component is supported by one aiming mechanism interposed between the reflector component and the lamp body so as to be adjustable in tilt. A headlamp for use , comprising: a first parabolic reflector of the reflector component
Forming side has one tilting fulcrum and aiming for vertical adjustment
Screws and aiming screws for horizontal adjustment
A first reflector in the reflector component , which is supported by an aiming mechanism composed of
And the second reflector are separated by a predetermined distance in the horizontal direction
And the reflector separation area
A part of the standing wall to be formed is composed of the first reflector and the second reflector.
It is formed behind the open end of the reflector.
Part of the aiming mechanism component on the standing wall lowered to
A headlamp for an automobile, characterized in that a vehicle is disposed . 2. In front of the reflector component,
Lamp body and clearance and automotive headlamp according to claim 1, wherein the extension reflector hiding the reflector spacing region is characterized in that provided between the reflector component. 3. A first parabolic reflector that contributes to the formation of a light distribution of a low beam headlamp and a second parabolic reflector that contributes to the formation of a light distribution of a fog lamp are integrated right and left adjacent to each other. The lamp body / reflector unit formed in the above is housed in a single lamp housing, and the lamp body / reflector unit is tilted and adjusted by one aiming mechanism interposed between the lamp body / reflector unit and the lamp housing. A headlamp for a vehicle, which is supported so that a first parabolic reflector forming side of the lamp body reflector unit has one tilting fulcrum, a vertical adjustment aiming screw, and a left / right adjustment aiming screw. The lamp body lift is supported by an aiming mechanism composed of The first in the lector unit
And the second reflector are located in the horizontal direction.
It is formed at a fixed distance and this reflection
A portion of the upright wall forming the remote area is a first reflector
Formed behind the open end of the first and second reflectors
The aiming mechanism is attached to the standing wall lowered to the rear.
A headlight for an automobile, wherein a part of the constituent members is disposed . 4. In front of said first and second reflectors
Is the reflector side edge area and the reflector separation
Extension reflectors are provided to hide the area
The automotive headlight according to claim 3, wherein: