JP2004111075A - Lighting device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting device for a vehicle without deterioration of appearance, disturbance of light distribution, lowering of light volume, capable of sufficiently exerting clearance lamp function. <P>SOLUTION: A space part G formed along an outer periphery of a front opening end 6a of a reflector 6 is indirectly lighted by an indirect illumination light source 14 installed in a light chamber 4 at the outside of the reflector 6. By the above, clearance lamp function is exerted. The appearance is improved since the indirect illumination light source 14 is blocked by the reflector 6 and not visible from outside. Since the reflector 6 can utilize the whole part of the reflection surface except the position of a light source bulb 5 as an effective reflection surface, the lighting device is not accompanied by the disturbance of light distribution of the light source bulb 5, and lowering of light volume at the whole part of the lighting device 1. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vehicular lamp applied as a headlamp incorporating a clearance lamp function, for example.
[0002]
[Prior art]
FIG. 6 shows a conventional vehicle lamp 100. In the vehicle lamp 100, a lamp chamber 4 is defined by a lamp housing 2 and a front lens 3 disposed on a front surface of the lamp housing 2, and a light source bulb 5 and light of the light source bulb 5 are provided in the lamp chamber 4. It is configured to include at least a reflector 6 that reflects light toward the front lens 3 (for example, see Patent Document 1).
[0003]
The light source bulb 5 constitutes a headlamp bulb, and is attached to a substantially central portion of the reflector 6. The reflector 6 is formed by one rotating fulcrum (not shown) and two interval adjusting parts (not shown). The housing 2 is tiltably supported by the housing 2.
[0004]
Further, the clearance lamp 7 is attached to the lamp housing 2 with the light emitting portion 7a positioned inside the reflection of the reflector 6 through the insertion hole 8 of the reflector 6. A blind member 9 is formed integrally with the clear lamp 7, and the blind member 9 is located between the front lens 3 and the insertion hole 8, so that the blind lamp 9 is inserted through the front lens 3 when not lit. Hole 8 is not visible.
[0005]
When the clear lamp 7 is turned on, the light emitted from the light emitting portion 7a and reflected by the reflecting surface 9a of the blindfold member 9 is applied to the entire reflector 6 so that the entire reflector 6 emits light. The lamp function can be performed.
[0006]
[Patent Document 1]
JP-A-10-116503 (specification paragraph numbers [0011] to [0023], FIG. 2)
[0007]
[Problems to be solved by the invention]
However, the vehicular lamp 100 is provided with an insertion hole 8 and a blindfold member 9 for disposing the clearance lamp 7 on the reflector 6, and the insertion hole 8 is provided when the reflector 6 is tilted. The diameter is made large so as not to contact the clearance lamp 7. For this reason, the vehicular lamp 100 has a problem that the light emitted from the light source bulb 5 disturbs the light distribution by the insertion hole 8 and the blind member 9 and reduces the light amount of the lamp itself. ing.
[0008]
Accordingly, the present invention provides a vehicular lamp capable of sufficiently exhibiting a clearance lamp function without deteriorating the appearance, without hindering the light distribution of the light source bulb and the light amount of the lamp itself. With the goal.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, according to the invention of claim 1, a lamp chamber is defined by a lamp housing and a front lens disposed on a front surface of the lamp housing. A vehicle lamp configured to include at least a reflector that reflects light toward the front lens,
A space along the outer periphery of a front opening end of the reflector is indirectly illuminated by an indirect illumination light source provided in the lamp room outside the reflector.
[0010]
For this reason, according to the first aspect of the present invention, by turning on the indirect illumination light source, the space along the outer periphery of the front opening end of the reflector is indirectly illuminated, so that a clearance lamp function can be achieved.
[0011]
In addition, since the indirect illumination light source is provided inside the lamp room outside the reflector, it is blocked by the reflector and cannot be seen from the outside, and the reflector excludes the location where the light source bulb is installed. The entire surface of the reflection surface can be used as an effective reflection surface, and the light from the light source bulb can be reflected toward the front lens while avoiding interference with the indirect illumination light source.
[0012]
The invention according to claim 2 is the vehicle lamp according to claim 1,
The space portion is formed between the reflector and the lamp housing, and the opposing surfaces of the reflector and the lamp housing facing each other are subjected to a reflection imparting process.
[0013]
Therefore, according to the second aspect of the invention, the light of the indirect illumination light source is repeatedly reflected between the opposing surfaces of the reflector and the lamp housing and guided to the space, thereby illuminating the space. can do.
[0014]
The invention according to claim 3 is the vehicle lamp according to claim 1,
The space is formed between the reflector and an inner panel provided between the reflector and the lamp housing, and the opposing surfaces of the reflector and the inner panel facing each other are subjected to reflection imparting processing. It is characterized by having.
[0015]
Therefore, in the invention according to claim 3, the light of the indirect illumination light source is repeatedly reflected between the opposing surfaces of the reflector and the inner panel and guided to the space, thereby illuminating the space. can do.
[0016]
The invention according to claim 4 is the vehicle lamp according to claim 1,
The space is formed between the reflector and the lamp housing, and a surface of the reflector facing the lamp housing is subjected to a reflection applying process, and the lamp housing is made of a resin material having a reflection function. It is characterized by being formed by.
[0017]
Therefore, in the invention according to claim 4, the light of the indirect illumination light source is repeatedly reflected between opposing surfaces of the reflector and the lamp housing and guided to the space, thereby illuminating the space. can do.
[0018]
At this time, since the lamp housing is formed of a resin material having a reflection function, a reflection providing process after the formation is unnecessary.
[0019]
The invention according to claim 5 is the vehicular lamp according to claim 1,
The space is formed between the reflector, and an inner panel provided between the reflector and the lamp housing, and a surface of the reflector facing the inner panel is subjected to reflection imparting processing. The inner panel is formed of a resin material having a reflection function.
[0020]
Therefore, in the invention according to claim 5, the light of the indirect illumination light source is repeatedly reflected between the opposing surfaces of the reflector and the inner panel and guided to the space, thereby illuminating the space. can do.
[0021]
At this time, since the inner panel is formed of a resin material having a reflection function, a reflection providing process after formation is not required.
[0022]
The invention according to claim 6 is the vehicle lamp according to any one of claims 1 to 5,
The lamp housing is characterized in that it has a slant structure in which a lower part of a front opening covered by the front lens projects forward from an upper part.
[0023]
For this reason, in the invention according to claim 6, the front opening of the lamp housing can be widened, and the space indirectly illuminated can be enlarged by the widening.
[0024]
The invention according to claim 7 is the vehicle lamp according to any one of claims 1 to 6,
The indirect illumination light source is constituted by a light emitting diode.
[0025]
Therefore, according to the invention of claim 7, the amount of heat generated at the time of indirect illumination can be suppressed as much as possible, and the space portion to be indirectly illuminated can be appropriately colored and illuminated with the colored light emitted by the light emitting diode.
[0026]
Since the light emitting diode itself is small, the space required for mounting can be saved.
[0027]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0028]
1 to 3 show a vehicle lamp 1 as a first embodiment of the present invention. In the vehicular lamp 1, a lamp chamber 4 is defined by a lamp housing 2 and a front lens 3 disposed on a front surface of the lamp housing 2, and a light source bulb 5 and light of the light source bulb 5 are provided in the lamp chamber 4. It is roughly configured to include at least a reflector 6 that reflects light in the direction of the front lens 3. The vehicle lamp 1 has a light source bulb 5 constituting a headlamp, a front turn lamp 12 and a turn lamp reflector 13 for reflecting light of the lamp 12 toward the front lens 3 as a whole. ing. The light source bulb 5 and the front turn lamp 12 show only the central part in FIG.
[0029]
Further, in the vehicle lighting device 1, a space portion G (shown by hatching in FIG. 1) along the outer periphery of the front opening end 6 a of the reflector 6 has an indirect portion provided in the lamp chamber 4 outside the reflector 6. It is configured to be indirectly illuminated by the illumination light source 14 (see FIG. 3). The indirect illumination light source 14 shows only the central part in FIG.
[0030]
1 to 3, reference numeral 10 denotes a shade, reference numeral 11 denotes a left and right aiming mechanism, reference numeral 15 denotes a hood, reference numeral 16 denotes a bumper, reference numeral A denotes a left and right aiming operation point, and reference numeral B is a vertical aiming operation point, and C is an aiming fulcrum.
[0031]
In the present embodiment, the lamp housing 2 is formed to have a concave portion 2f including the reflector 6 and a turn lamp reflector 13 formed integrally, and the lamp chamber 4 includes a front surface of the lamp housing 2. And a concave portion 2f of the lamp housing 2 formed so as to cover the front lens 3. The reflector 6 / light source bulb 5 and the reflector 13 / front turn lamp 12 mounted in the concave portion 2f of the lamp housing 2 constitute a head lamp and a signal lamp, respectively.
[0032]
The indirect illumination light source 14 is constituted by a clear lamp (corresponding to the conventional clear lamp 7), and is provided in the lamp room 4 outside the reflector 6. Specifically, as shown in FIG. 1, the indirect illumination light source 14 is configured such that the light-emitting portion 14 a is opposed to the back surface of the reflector 6 corresponding to the diagonally lower right portion of the light source bulb 5, and the light-emitting portion 14 a It is attached (see FIG. 3).
[0033]
Further, the space portion G is a gap between the reflector 6 and the concave portion 2f of the lamp housing 2, and is formed as a gap that is continuous with the gap G1 (see FIG. 3) where the light emitting portion 14a of the indirect illumination light source 14 exists. The reflector 6 is formed along the outer periphery of the front opening end 6 a of the reflector 6.
[0034]
The vehicular lamp 1 configured as described above sufficiently performs the clearance lamp function by the indirect illumination of the space G along the outer periphery of the front opening end 6a of the reflector 6 when the indirect illumination light source 14 is turned on. be able to.
[0035]
Further, since the indirect illumination light source 14 is provided in the lamp room 4 outside (back side) of the reflector 6, it is blocked by the reflector 6 and cannot be visually recognized from the outside. Can be improved.
[0036]
In addition, the reflector 6 can use the entire surface of the reflector except for the location where the light source bulb 5 is installed as an effective reflection surface, and can prevent the light of the light source bulb 5 from being blocked by any obstacle. Since the light can be reflected in three directions, it can be maximized without disturbing the light distribution of the light source bulb 5 and reducing the light quantity of the entire lamp 1.
[0037]
Preferably, the opposing surfaces of the reflector 6 and the lamp housing 2 that constitute the space portion G are formed by applying a reflection treatment. This reflection imparting process is performed, for example, by applying aluminum vapor deposition or silver coating to the target facing surface. The opposing surfaces at this time are the outer surface (back surface) of the reflector 6 and the inner surface of the lamp housing 2 on the lamp room 4 side. The reflection applying process on the outer surface of the reflector 6 can be performed simultaneously with the reflection applying process on the inner surface of the reflector 6.
[0038]
In this configuration, as shown in FIG. 3, the light L of the indirect illumination light source 14 is efficiently repeatedly reflected between the opposing surfaces of the reflector 6 and the lamp housing 2, and the front opening end of the reflector 6 is opened. The light is guided to the space G along 6a, whereby the space G can be efficiently illuminated.
[0039]
More preferably, lamp housing 2 is formed of a resin material having a reflecting function. This resin material is a resin material containing, for example, a resin such as polypropylene and a glossy material such as a metal flake powder such as aluminum and glossy particles. Specifically, a resin material having a decorative function and a reflecting function can be obtained by adding 1% by weight of a metal flake powder made of aluminum to a polypropylene resin.
[0040]
In this configuration, since the lamp housing 2 is formed of a resin material having a reflection function, a reflection providing process after formation is not required, thereby simplifying the manufacturing process.
[0041]
Still more preferably, the concave portion 2f of the lamp housing 2 is formed to have a slant structure in which a lower portion 2a of the front surface portion projects forward from an upper portion 2b as shown in FIGS.
[0042]
In this configuration, the front opening of the concave portion 2f of the lamp housing 2 can be widened, and the space G to be indirectly illuminated can be enlarged by the widened portion, so that a more effective clearance lamp function can be achieved. Can be played.
[0043]
At this time, the width of the portion 2c that does not overlap with the reflector 6 is widened in the lower portion 2a of the lamp housing 2 and the tapered portion 2d in which the width of the space G gradually increases toward the opening end 6a is formed in the upper portion 2b. By forming, the width of the space portion G at the time of illumination is enlarged, whereby the clearance lamp function can be further emphasized. 2 and 3, the two-dot chain line near the front opening end 6a of the reflector 6 indicates the locus of the reflector 6 during aiming.
[0044]
FIG. 4 shows a vehicle lamp 20 as a second embodiment of the present invention. The vehicular lamp 20 has the same configuration as the vehicular lamp 1 described above except for the configuration of the space portion G. Therefore, the same components are denoted by the same reference numerals, and description thereof will be omitted.
[0045]
In the present embodiment, the space G is formed between the reflector 6 and the inner panel 17 provided between the reflector 6 and the lamp housing 2, and the reflector 6 and the inner panel 17 face each other. The facing surface is subjected to a reflection imparting process. At this time, preferably, at least a portion of the lamp housing 2 that does not overlap with the inner panel 17 is subjected to a reflection imparting process on the inner surface facing the reflector 6. The inner panel 17 is also called an extension.
[0046]
In the vehicle lighting device 20 configured as described above, the light L of the indirect illumination light source 14 is, as shown in FIG. 4, between the opposing surfaces of the reflector 6 and the lamp housing 2, and between the reflector 6 and the inner panel. Since the reflection is efficiently repeated between the opposing surfaces of the reflectors 17 and guided to the space G along the front opening end 6a of the reflector 6, the space G can be efficiently illuminated. Accordingly, the same function and effect as those of the vehicle lamp 1 described above can be obtained.
[0047]
In addition, in the vehicle lamp 20, since the space G can be freely designed by the inner panel 17 and the reflector 6, regardless of the shape of the opening of the lamp housing 2, the degree of freedom of design can be increased. Can be.
[0048]
Preferably, the inner panel 17 and the lamp housing 2 can be formed of a resin material having a reflection function.
[0049]
In this configuration, since the inner panel 17 and the lamp housing 2 are formed of a resin material having a reflecting function, a reflection providing process after the formation is not required, thereby simplifying the manufacturing process.
[0050]
FIG. 5 shows a vehicle lamp 30 as a third embodiment of the present invention. This vehicle lamp 30 has the same configuration as that of the above-described vehicle lamp 1 except for the indirect illumination light source 14. Therefore, the same components are denoted by the same reference numerals, and description thereof will be omitted.
[0051]
In the present embodiment, the indirect illumination light source 14 is configured by a light emitting diode.
[0052]
In the vehicle lamp 30 configured as described above, the light L of the indirect illumination light source 14 is repeatedly reflected between opposing surfaces of the reflector 6 and the lamp housing 2 as shown in FIG. Since the light is guided to the space G along the front opening end 6a of the reflector 6, and thereby the space G can be efficiently illuminated, the same function and effect as the above-described vehicle lamp 1 can be obtained.
[0053]
In addition, in the vehicle lamp 30, since the indirect illumination light source 14 is formed of a light emitting diode, the amount of heat generated during the indirect illumination can be suppressed as much as possible, and the space G to be indirectly illuminated is colored by the light emitting diode. Colored illumination can be appropriately performed using light. For this reason, the vehicle lamp 30 can improve the life of the lamp by suppressing the amount of generated heat, and can increase the degree of freedom in design by colored illumination.
[0054]
Furthermore, since the light source itself is small in size, the space required for mounting the light emitting diode can be saved, and thus the overall size of the lamp can be reduced.
[0055]
In addition, the light-emitting diode constituting the indirect illumination light source 14 of the third embodiment can be applied to the vehicle lamp 20 of the second embodiment. In this case, in addition to the functions and effects of the vehicle lamp 20. Also, the operation and effect of the third embodiment can be achieved.
[0056]
【The invention's effect】
As described in detail above, according to the first aspect of the present invention, by turning on the indirect illumination light source, the space along the outer periphery of the front opening end of the reflector is fully indirectly illuminated, so that the clearance lamp function is sufficiently achieved. Can be played.
[0057]
In addition, since the indirect illumination light source is located outside the reflector, and the reflection surface of the reflector is an effective reflection surface except for the location where the light source bulb is installed, the arrangement of the light source bulb can be performed without deteriorating the appearance. These can be exerted to the maximum without obstructing the light and the light quantity of the entire lamp.
[0058]
According to the second aspect of the present invention, the light of the indirect illumination light source is repeatedly reflected between the reflector and the facing surface of the lamp housing which has been subjected to the reflection imparting process, and is guided to the space, whereby the space is provided. Since the space can be illuminated, the space can be illuminated more efficiently in addition to the effect of the first aspect of the invention.
[0059]
According to the third aspect of the present invention, the light of the indirect illumination light source is repeatedly reflected between the reflector and the opposed surface of the inner panel on which the reflection imparting process has been performed, and is guided to the space, whereby the space is provided. The space can be illuminated more efficiently, in addition to the effect of the first aspect of the invention.
[0060]
In addition, the space to be indirectly illuminated can be freely designed by the inner panel and the reflector irrespective of the shape of the opening of the lamp housing, so that the degree of freedom in design can be increased.
[0061]
According to the invention described in claim 4, the light of the indirect illumination light source is transmitted between the outer surface of the reflector subjected to the reflection imparting process and the inner surface of the lamp housing formed of a resin material having a reflection function. Since the reflection is repeated and light is guided to the space, and the space can be illuminated, the space can be illuminated more efficiently in addition to the effect of the first aspect of the invention.
[0062]
In addition, since the lamp housing is formed of a resin material having a reflecting function, a reflection providing process after formation is not required, and the manufacturing process can be simplified accordingly.
[0063]
According to the invention described in claim 5, the light of the indirect illumination light source is transmitted between the outer surface of the reflector subjected to the reflection imparting process and the inner surface of the inner panel formed of a resin material having a reflection function. Since the reflection is repeated and light is guided to the space, and the space can be illuminated, the space can be illuminated more efficiently in addition to the effect of the first aspect of the invention.
[0064]
According to the sixth aspect of the present invention, the front opening of the lamp housing can be widened, and the space illuminated by indirect illumination can be enlarged by the widened portion. In addition to the effects of the invention of any one of the above-mentioned items 5, it is possible to further emphasize the clearance lamp function to achieve further safety.
[0065]
According to the seventh aspect of the present invention, since the indirect illumination light source is constituted by a light emitting diode, the amount of heat generated during the indirect illumination can be suppressed as much as possible, and the space to be indirectly illuminated is colored by the light emitting diode. It is possible to appropriately perform colored illumination with light, and thereby, in addition to the effect of the invention of any one of claims 1 to 6, it is possible to improve the life of the lamp and to expand the degree of freedom in design.
[Brief description of the drawings]
FIG. 1 is a schematic front view of a vehicle lamp according to a first embodiment of the invention.
FIG. 2 is a sectional view taken along the line II-II in FIG.
FIG. 3 is a sectional view taken along line III-III in FIG.
FIG. 4 is a cross-sectional view of the vehicular lamp according to the second embodiment of the present invention, taken along a line corresponding to line III-III in FIG. 1;
FIG. 5 is a cross-sectional view of the vehicular lamp according to the third embodiment of the present invention, taken along a line corresponding to line III-III in FIG. 1;
FIG. 6 is a cross-sectional view of a conventional vehicle lamp.
[Explanation of symbols]
1, 20, 30 Vehicle lamp 2 Lamp housing 2a Lower part (of lamp housing)
2b Upper part (of lamp housing)
3 Front lens 4 Light room 5 Light source bulb 6 Reflector 6a Front opening end 14 Indirect illumination light source 17 Inner panel G Space

Claims (7)

A lamp chamber is defined by a lamp housing and a front lens disposed on a front surface of the lamp housing. The lamp chamber includes at least a light source bulb and a reflector that reflects light from the light source bulb toward the front lens. Vehicle lighting device,
A vehicular lamp, wherein a space along an outer periphery of a front opening end of the reflector is indirectly illuminated by an indirect illumination light source provided in the lamp room outside the reflector. The vehicle lamp according to claim 1,
The vehicle lamp, wherein the space is formed between the reflector and the lamp housing, and the opposing surfaces of the reflector and the lamp housing facing each other are subjected to reflection imparting processing. The vehicle lamp according to claim 1,
The space is formed between the reflector and an inner panel provided between the reflector and the lamp housing, and the opposing surfaces of the reflector and the inner panel facing each other are subjected to reflection imparting processing. A vehicular lamp characterized in that: The vehicle lamp according to claim 1,
The space is formed between the reflector and the lamp housing, and a surface of the reflector facing the lamp housing is subjected to a reflection applying process, and the lamp housing is made of a resin material having a reflection function. A vehicular lamp characterized by being formed of: The vehicle lamp according to claim 1,
The space is formed between the reflector, and an inner panel provided between the reflector and the lamp housing, and a surface of the reflector facing the inner panel is subjected to reflection imparting processing. The vehicle lamp according to claim 1, wherein the inner panel is formed of a resin material having a reflection function. The vehicular lamp according to any one of claims 1 to 5, wherein the lamp housing has a slant structure in which a lower part of a front opening covered by the front lens projects forward from an upper part. A vehicular lamp characterized by being formed. The vehicular lamp according to any one of claims 1 to 6, wherein the indirect illumination light source comprises a light emitting diode.

Images