CN107429898B

CN107429898B - Front shining lamp

Info

Publication number: CN107429898B
Application number: CN201680019760.4A
Authority: CN
Inventors: 土屋洋介
Original assignee: Honda Motor Co Ltd
Current assignee: Honda Motor Co Ltd
Priority date: 2015-03-30
Filing date: 2016-03-29
Publication date: 2019-12-06
Anticipated expiration: 2036-03-29
Also published as: MY189568A; JP2016189283A; WO2016158890A1; PH12017501775B1; JP6544963B2; CN107429898A; PH12017501775A1; BR112017020628A2

Abstract

The invention provides a headlamp, which can increase the area of a light emitting part of the headlamp even in low beam illumination. The headlamp (60) has a housing (61) and a partition wall (93) that vertically divides a front opening (92). In the reflector (91), a first reflection surface (96) is provided at a position above the partition wall (93), a second reflection surface (99) is provided at a position below the partition wall (93), the low beam side LED light source (71) is disposed at a position where one of the first reflection surface (96) and the second reflection surface (99) is irradiated, and the high beam side LED light source (81) and the position light LED light source (82) are disposed at a position where the other of the first reflection surface (96) and the second reflection surface (99) is irradiated. Even in low beam illumination, the area of the light emitting part of the headlamp can be increased.

Description

Front shining lamp

Technical Field

The present invention relates to a headlamp mounted on a motorcycle.

background

a vehicle, such as a motorcycle, is generally equipped with a headlamp having a light source for low beam and a light source for high beam. Various configurations of such a headlamp are known (see, for example, patent document 1 (fig. 8)).

As shown in fig. 8 of patent document 1, a headlight (10) (the number with parentheses indicates the reference numeral described in patent document 1. the same applies hereinafter) has an upper light emitting unit (110L) for low beam arranged in the upper portion, a lower light emitting unit (112L) for high beam arranged below the upper light emitting unit (110L), and a position lamp (130) arranged below the lower light emitting unit (112L). In the upper light emitting section (110L), light emitted from a low-beam light source (114) is reflected by an upper reflector (116). In the lower light emitting section (112L), light emitted from the high beam light source (118) is reflected by a lower reflector (120).

The upper light-emitting part (110L) and the lower light-emitting part (112L) are separated by a front extension part (117b) provided at the lower part of the upper reflector (116) and an extension member (126L). Therefore, in low beam illumination, light emitted from the low beam light source (114) brightens only the upper light emitting section (110L). Since light from the low-beam light source (114) does not irradiate the lower-side light emitting unit (112L), the lower-side light emitting unit (112L) does not become bright.

The lower light emitting section (112L) and the position lamp (130) are separated by a front extension section (121b) provided at the lower part of the lower reflector (120) and an extension cover (104). Therefore, during high beam illumination, the light emitted from the high beam light source (118) brightens only the lower light emitting section (112L). In contrast, the upper light emitting section (110L) does not become bright.

That is, when the light emitting units (110L, 112L) are provided vertically and only one of the light emitting units (110L, 112L) emits light, the other light emitting unit (110L or 112L) does not emit light, and therefore the light emitting area in the headlamp (10) is small.

In recent years, in high beam illumination, light is emitted from a low beam light source (114) in addition to a high beam light source (118). In this case, during high beam illumination, the light emitting section (110L) and the light emitting section (112L) become bright, and the area of the light emitting section becomes large.

On the other hand, in low beam illumination, only the upper light emitting section (110L) is lit, and the lower light emitting section (112L) remains dark, so that the area of the light emitting section remains small. However, from the viewpoint of appearance by light, a technique that can increase the area of the light emitting section even in low beam illumination is desired.

prior art documents

patent document

patent document 1: japanese patent laid-open publication No. 2014-184785

Disclosure of Invention

Problems to be solved by the invention

The invention provides a headlamp, which can increase the area of a light emitting part of the headlamp even in low beam illumination in a headlamp with a low beam area and a high beam area separated by a partition wall.

means for solving the problems

In the invention according to claim 1, the headlamp includes: a housing; a low beam side LED light source, a high beam side LED light source and a position light LED light source which are accommodated in the shell and irradiate light; a reflector having a front opening and reflecting light emitted from the light source; a lens provided in the housing and covering the front opening; and a partition wall extending from the reflector to the vicinity of the lens and vertically dividing the front opening portion,

On the reflector, a first reflecting surface is provided at a position above the partition wall, a second reflecting surface is provided at a position below the partition wall,

The low beam side LED light source is disposed at a position to irradiate one of the first reflecting surface and the second reflecting surface,

The high beam side LED light source and the position lamp LED light source are disposed at positions to irradiate the other of the first reflecting surface and the second reflecting surface.

The invention according to claim 2 is characterized in that a first substrate is provided on an upper portion of the reflector, a second substrate at least a part of which is disposed in the partition wall is provided at a vertically intermediate portion of the reflector, and the high-beam-side LED light source and the position light LED light source are disposed on one of the first substrate and the second substrate.

The invention according to claim 3 is characterized in that at least one of the first substrate and the second substrate is formed with an engagement hole penetrating in a vertical direction, and at least one of the first substrate and the second substrate is engaged with the reflector by inserting an engagement member into the engagement hole in the vertical direction.

The invention according to claim 4 is characterized in that a third reflecting surface that reflects light from the position light LED light source is provided so as to be continuous with the first reflecting surface or the second reflecting surface that reflects light from the high-beam-side LED light source, and the third reflecting surface is integrally formed on the reflecting surface that reflects light from the high-beam-side LED light source.

In the invention according to claim 5, a light guide hole for guiding light from the high beam side LED light source or the low beam side LED light source to the first reflection surface is formed in the reflector below the high beam side LED light source or the low beam side LED light source provided on the first substrate, and the light guide hole has a hole shape along the shape of the first reflection surface.

the invention according to claim 6 is characterized in that the high-beam-side LED light sources are arranged on the left and right sides in the vehicle width direction, and the left and right high-beam-side LED light sources and the position light LED light sources are arranged such that the LED light sources adjacent to each other on the left and right sides are offset from each other in the vehicle front-rear direction.

the invention according to claim 7 is characterized in that the third reflecting surface has a concave portion which is formed by a bottom portion and left and right side surface portions rising from an edge of the bottom portion so as to be recessed downward, and reflecting surfaces are formed on the left and right side surface portions and the bottom portion.

the invention according to claim 8 is characterized in that the third reflecting surface has a projecting portion projecting upward, the projecting portion is composed of an upper surface portion and left and right side surface portions extending downward from an edge of the upper surface portion, and reflecting surfaces are formed on the left and right side surface portions and the upper surface portion.

ADVANTAGEOUS EFFECTS OF INVENTION

In the invention according to claim 1, the reflector is provided with a first reflecting surface at a position above the partition wall and a second reflecting surface at a position below the partition wall. The low beam side LED light source is disposed at a position to irradiate one of the first and second reflecting surfaces, and the high beam side LED light source and the position light LED light source are disposed at a position to irradiate the other of the first and second reflecting surfaces. In the case of illuminating only the low beam side LED light source, the high beam side LED light source does not illuminate, but the light from the position light LED light source is irradiated onto the reflection surface on which the light from the high beam side LED light source is irradiated, whereby the whole of the interior of the headlamp divided by the partition wall can be illuminated. That is, in the headlamp in which the low beam region and the high beam region are divided by the partition wall, the area of the light emitting portion of the headlamp can be increased even in the low beam illumination.

In the invention according to claim 2, a first substrate is provided on an upper portion of the reflector, and a second substrate at least a part of which is disposed in the partition wall is provided on a vertically intermediate portion of the reflector. The first substrate is disposed above the reflector and a part of the substrate is disposed in the partition wall, so that the substrate is prevented from protruding rearward, and the front-rear length of the headlamp can be reduced. Further, since the high-beam-side LED light source and the position lamp LED light source are disposed on one of the first substrate and the second substrate, the substrate of the high-beam-side LED light source and the substrate of the position lamp LED light source can be shared, and the number of components can be reduced.

in the invention according to claim 3, at least one of the first substrate and the second substrate is engaged with the reflector by inserting the engaging member into an engaging hole penetrating in the vertical direction. Since the LED light source has high directivity, when the position of the reflector is shifted in the lateral direction, the irradiation angle of the light to the front of the vehicle moves left and right, and the light cannot be guided in a desired direction. In this regard, in the present invention, the engagement member is inserted in the vertical direction, and even if the engagement member is released, the substrate is displaced only in the vertical direction, and thus, the irradiation can be performed in a set direction.

In the invention according to claim 4, the third reflecting surface that reflects the light from the position light LED light source is integrally formed on the first reflecting surface or the second reflecting surface that reflects the light from the high-beam-side LED light source. Therefore, it is not necessary to separately provide a reflector for the LED light source of the position lamp, and the number of parts can be reduced.

In the invention according to claim 5, the reflector is provided with a light guide hole for guiding light from the high beam side LED light source or the low beam side LED light source to the first reflecting surface. Since the light guide hole has a hole shape along the shape of the first reflection surface, light from the light source can be guided to the first reflection surface in a concentrated manner, and the amount of light that strikes unnecessary portions can be suppressed. As a result, it is possible to suppress the light from being radiated in a direction other than the intended direction when the headlamp is illuminated.

In the invention according to claim 6, the high beam side LED light sources are arranged on the left and right sides in the vehicle width direction. The position light LED light sources and the left and right high beam side LED light sources are arranged such that the left and right adjacent LED light sources are offset in the vehicle front-rear direction without overlapping each other in the vehicle width direction, and therefore, the distance between the LED light sources can be increased to avoid concentration of heat emitted from the LED light sources.

In the invention according to claim 7, the third reflecting surface has a concave portion that is formed by a bottom portion and left and right side surface portions that rise from an edge of the bottom portion so as to be recessed downward. Since the third reflecting surface is formed not only on the curved surface but also on the left and right side surfaces, light is emitted by the コ -shaped reflecting surface so as to spread from the third reflecting surface. As a result, the light emitting area can be increased.

In the invention according to claim 8, the third reflecting surface has a projecting portion projecting upward, and the projecting portion is constituted by an upper surface portion and right and left side surface portions extending downward from an edge of the upper surface portion. Since the third reflecting surface is formed not only on the curved surface but also on the left and right side surface portions and the upper surface portion, light is emitted by the convex reflecting surface so as to spread from the third reflecting surface. As a result, the light emitting area can be increased. Further, by irradiating the upper surface portion, it is possible to further improve the appearance as if the lighting is performed in a place where the front side is floating.

drawings

Fig. 1 is a left side view of a motorcycle of the present invention.

Fig. 2 is a front view of the motorcycle shown in fig. 1.

Fig. 3 is a front view of the headlamp of embodiment 1.

Fig. 4 is a side view of the head lamp.

Fig. 5 is a cross-sectional view taken along line 5-5 of fig. 3.

fig. 6 is a view from the 6-way of fig. 4.

Fig. 7 is a cross-sectional view taken along line 7-7 of fig. 6.

Fig. 8 is a cross-sectional view taken along line 8-8 of fig. 4.

Fig. 9 is a perspective view of the second reflection surface and the third reflection surface.

Fig. 10 is a plan view of the second substrate.

Fig. 11 is an action view of the head lamp.

fig. 12 is an action diagram of the third reflecting surface.

fig. 13 is a perspective view of a headlamp of embodiment 2.

Fig. 14 is a cross-sectional view taken along line 14-14 of fig. 13.

Detailed Description

hereinafter, embodiments of the present invention will be described based on the drawings. In addition, the drawings are views viewed in the direction of reference numerals. "front (Fr)", "rear (Rr)", "left (L)", "right (R)", "Up (Up)", and "Down (Down)" are in the direction viewed from the driver.

Example 1

First, an embodiment of the present invention is explained based on the drawings.

As shown in fig. 1 and 2, the vehicle 10 is a motorcycle. The vehicle 10 includes: a vehicle body frame 12 forming a vehicle body 11, a head pipe 13 forming a front portion of the vehicle body frame, a bottom bridge 15 attached to a lower end of the head pipe 13 and supporting upper ends of a pair of left and right front forks 14L, 14R, and a front wheel 18 supported by an axle 16 at a lower end of the front forks 14L, 14R and covered with a front fender 17 at an upper side thereof.

Further, the vehicle 10 has a body cover 40 that covers the vehicle body 11. The front portion of the vehicle 10 has: a front cover 51 that is provided to the head pipe 13 via a front cover stay and covers a front portion of the vehicle body 11, a headlamp 60 that is provided to the front cover 51 and illuminates the front of the vehicle, a handle 21 that is rotatably supported on an upper portion of the head pipe 13, and rearview mirrors 52L, 52R provided to the handle 21.

The frame 12 has: a main frame 22 extending rearward and downward from the head pipe 13, and a seat rail 24 extending rearward and upward from a rear end portion of the main frame 22 and directly or indirectly supporting a seat 23. A riding space 25 is formed between the seat 23 and the front cover 51 to be spanned by the occupant. In the embodiment, only the main frame 22 is provided from the head pipe 13 toward the vehicle rear side, but the present invention is not limited thereto, and the main frame, the lower frame, and the like may be provided from the head pipe 13 toward the vehicle rear side, and the structure of the frame 12 is not limited.

Further, a power unit 31 of a unit swing type engine is provided on the main frame 22, and the power unit 31 is constituted by an engine 32 and a transmission 33. The output of the engine 32 is transmitted to rear wheels 34 provided at the rear of the power unit 31 via a transmission 33. Further, a cushion unit 35 that absorbs an impact on the rear wheel 34 is provided between the rear portion of the power unit 31 and the seat rail 24.

A tail lamp unit 36 is provided behind the seat rail 24, and a rear fender 37 that covers the upper and rear sides of the rear wheel 34 is disposed below the tail lamp unit 36. A windshield 38 is provided on an upper portion of the front cowl 51.

The vehicle body cover 40 includes: a front cover 51 covering at least a part of the head pipe 13, a handlebar cover 41 covering the handlebar 21, a main frame cover 42 covering the upper side of the main frame 22, a main frame side cover 43 connected to the main frame cover 42 and covering the side portion of the vehicle 10, and a rear side cover 44 connected to the main frame cover 42 and covering the vehicle width direction side and the vehicle width direction of the vehicle rear portion.

The front cover 51 further includes: an upper portion 53 provided above the front wheel 18, and side portions 54 extending downward from both sides in the vehicle width direction of the upper portion 53. The front cover 51 is provided with left and right ducts 55 for guiding traveling wind into the front cover 51.

The head lamp 60 will be described next.

As shown in fig. 3 and 4, the headlamp 60 includes: a housing 61; a low beam side LED light source 71, a high beam side LED light source 81, and a position light LED light source 82 that irradiate light; a reflector 91 that reflects light; and a lens 111 that transmits light.

The case 61 has a substantially inverted triangle shape or a substantially V shape in front view, and is attached to the vehicle body 11 and the vehicle body cover 40 by the attachment portion 62 (see fig. 1). The case 61 houses: left and right low beam side LED light sources 71, left and right high beam side LED light sources 81, and position light LED light source 82; and left and right winkers 63, 63 that blink to indicate directions.

The reflector 91 is formed with a front opening 92 that opens forward, and reflects light emitted from the low beam side LED light source 71, the high beam side LED light source 81, and the position light LED light source 82 toward the front of the vehicle. The lens 111 is provided in the housing 61 and covers the front opening 92.

The headlight 60 has a partition wall 93 extending from the reflector 91 to the vicinity of the lens 111 and vertically dividing the front opening 92. The partition wall 93 is integrally formed with the reflector, and a portion above the partition wall 93 is a low beam region, and a portion below the partition wall 93 is a high beam region.

In the case 61 having a substantially inverted triangle shape or a substantially V-shape, since the low beam region is located above the partition wall 93, the low beam region as viewed from the front is expanded in the vehicle width direction, and the area of the light emitting portion of the low beam can be expanded. In the embodiment, the shape of the housing 61 is made substantially inverted triangle or substantially V-shaped when viewed from the front, but the shape is not limited to this, and the housing 61 may be made other shapes such as rectangular or elliptical when viewed from the front as long as the low beam region and the high beam region are separated by the partition wall 93.

As shown in fig. 3 and 5, the reflector 91 includes: an upper extending portion 94 located at an upper end portion and extending forward along the lens 111, and an upper folded portion 95 folded back downward and rearward from a front end of the upper extending portion 94. Further, the reflector 91 includes: a first reflection surface 96 extending forward and downward from the vicinity of the rear end of the upper folded portion 95, a partition extension portion 97 extending forward from the front end of the first reflection surface 96, and a partition folded portion 98 folded back downward and rearward from the front end of the partition extension portion 97.

further, the reflector 91 includes: a second reflecting surface 99 extending forward and downward from the vicinity of the rear end of the partition wall folded portion 98, and a lower extending portion 101 extending forward from the front end of the second reflecting surface 99. The partition 93 is composed of a partition extending portion 97 and a partition folded portion 98. That is, in the reflector 91, a first reflection surface 96 is provided at a position above the partition wall 93, and a second reflection surface 99 is provided at a position below the partition wall 93.

The first bracket 72 is fastened to the upper rear portion of the reflector 91 with a fastening member 73. The first substrate 74 is engaged with a lower portion of the first bracket 72 by an engaging member 75. A lower rear mounting portion 102 extending rearward is formed at a lower portion of the reflector 91, and the second bracket 83 is fastened to the lower rear mounting portion 102 by a fastening member 84. The second substrate 85 is engaged with the upper portion of the second bracket 83 by an engaging member 86.

the first base plate 74 is formed to be long in the vehicle width direction and to extend forward from a position fastened to the first bracket 72. An engagement hole 76 penetrating in the vertical direction is formed in the first substrate 74, and the first substrate 74 is engaged with the reflector 91 via the first bracket 72 by inserting the engagement member 75 into the engagement hole 76 in the vertical direction.

The first substrate 74 is disposed on an upper portion of the reflector 91. Specifically, at least a part of the first substrate 74 is disposed inside the upper extending portion 94 and the upper folded portion 95. The arrangement space of the first substrate 74 behind the reflector 91 can be reduced, and the front-rear length of the headlight 60 can be reduced.

The left and right low-beam LED light sources 71, 71 are disposed on the first substrate 74 so as to irradiate downward. The first reflecting surface 96 is curved so that left and right portions are recessed, and reflects light from the left and right low-beam LED light sources 71, 71 forward while focusing the light. That is, the left and right low beam side LED light sources 71, 71 are disposed at positions to irradiate the first reflecting surface 96.

The second base plate 85 is formed to be long in the vehicle width direction and to extend forward from a position fastened to the second bracket 83. An engagement hole 87 that penetrates in the vertical direction is formed in the second substrate 85, and the second substrate 85 is engaged with the reflector 91 via the second bracket 83 by inserting the engagement member 86 into the engagement hole 87 in the vertical direction.

The second substrate 85 is provided at the middle portion in the vertical direction of the reflector 91. Specifically, at least a part of the second substrate 85 is disposed inside the partition wall 93 surrounded by the partition wall extending portion 97 and the partition wall folded portion 98. The arrangement space of the second substrate 85 behind the reflector 91 can be reduced, and the front-rear length of the headlight 60 can be reduced.

On the second substrate 85, left and right high beam side LED light sources 81 and position light LED light source 82 are provided so as to irradiate downward. The second reflecting surface 99 is curved so that left and right portions are recessed, and reflects light from the left and right high-beam-side LED light sources 81, 81 forward while focusing the light.

A third reflecting surface 100 that reflects light from the position light LED light source 82 is formed at the center in the vehicle width direction of the second reflecting surface 99. The third reflecting surface 100 constitutes a part of the second reflecting surface 99. That is, the left and right high beam side LED light sources 81 and the position lamp LED light source 82 are disposed at positions to irradiate the second reflecting surface 99. Since the high-beam-side LED light sources 81 and the position lamp LED light sources 82 are arranged on the second substrate 85 in this manner, the substrate of the high-beam-side LED light sources 81 and the substrate of the position lamp LED light sources 82 can be shared, and the number of components can be reduced.

Further, since the engaging members 75 and 86 are inserted into the first substrate 74 and the second substrate 85 in the vertical direction and the substrates 74 and 85 are displaced in the vertical direction even if the engaging members 75 and 86 are released, an effect of restricting displacement in the lateral direction of irradiation can be obtained.

The light guide hole of the reflector 91 is explained next.

as shown in fig. 5 to 8, the reflector 91 is formed with first light guide holes 103, 103 that guide light from the low-beam-side LED light sources 71, 71 to the left and right of the first reflection surface 96, below the low-beam-side LED light sources 71, 71 provided on the first substrate 74. The first reflecting surface 96 is curved so that the left and right portions in the vehicle width direction are respectively recessed rearward.

the left and right first light guide holes 103, 103 formed in a line in the vehicle width direction have a hole shape along the shape of the first reflection surface 96. Therefore, the light from the left and right low-beam side LED light sources 71, 71 can be guided to the first reflection surface 96 in a concentrated manner, and the amount of light that strikes unnecessary portions can be suppressed. As a result, when the headlight 60 is illuminated, the light can be prevented from being irradiated in a direction other than the intended direction. That is, in the present embodiment, light is guided to the first reflection surface 96 and light is suppressed from being guided to the reflection surface provided on the partition wall 93.

Further, the reflector 91 is formed with a second light guide hole 104 for guiding light from the high-beam side LED light sources 81, 81 to the second reflecting surface 99, below the high-beam side LED light sources 81, 81 and the position light LED light source 82 provided on the left and right of the second substrate 85.

The second light guide hole is long in the vehicle width direction, and the vehicle width direction left and right portions are formed so as to follow the shape of the second reflection surface 99, and the vehicle width direction center portion is formed in a hole shape recessed toward the vehicle front side. Therefore, the light from the left and right high-beam side LED light sources 81, 81 can be guided to the second reflecting surface 99 in a concentrated manner, and the amount of light that strikes an unnecessary portion, in this embodiment, the lower extending portion 101 can be suppressed. As a result, when the headlight 60 is illuminated, the light can be prevented from being irradiated in a direction other than the intended direction. Also, light from the position light LED light source 82 may be directed to the third reflective surface 100.

the second reflecting surface 99 and the third reflecting surface 100 will be described next.

As shown in fig. 9, the third reflecting surface 100 is formed continuously and integrally with the second reflecting surface 99 on the second reflecting surface 99. Therefore, it is not necessary to provide a reflector for the position lamp LED light source 82 separately from the reflector for the high-beam side LED light source 81, and the number of parts can be reduced. Further, the third reflecting surface 100 is integrally formed with the second reflecting surface 99, whereby the cost for forming the entire reflector 91 can be reduced.

the third reflecting surface 100 has a concave portion 105 recessed downward. The concave portion 105 is composed of a bottom portion 106 and left and right side surface portions 107, 107 rising from the edge of the bottom portion 106. The bottom portion 106 is constituted by a first bottom portion 106a extending in the substantially vertical direction and a second bottom portion 106b extending in the substantially vertical direction, and the plurality of first bottom portions 106a and the plurality of second bottom portions 106b are continuous.

The first bottom part 106a, the second bottom part 106b, and the left and right side parts 107, 107 are formed with reflection surfaces. Since the reflective surfaces are formed not only on the first bottom portion 106a and the second bottom portion 106b but also on the left and right side surface portions 107 and 107, light can be emitted by the コ -shaped reflective surface so as to spread from the third reflective surface 100. As a result, the visibility of the headlight 60 can be improved.

Next, the positional relationship of the LED light source 82 will be described.

As shown in fig. 5 and 10, the high-beam-side LED light sources 81 and 81 are disposed on the second substrate 85 so as to be separated from each other in the vehicle width direction. The position light LED light source 82 is disposed on the second substrate 85 at the center in the vehicle width direction of the left and right high-beam side LED light sources 81, 81.

The left and right high-beam-side LED light sources 81 and the position lamp LED light source 82 are arranged on the second substrate 85 so as to be offset in the vehicle front-rear direction. Specifically, the position light LED light source 82 is disposed in front of the vehicle with respect to the left and right high-beam side LED light sources 81 and 81. In this way, the left and right high beam side LED light sources 81, 81 and the position lamp LED light source 82 are arranged offset in the vehicle front-rear direction without overlapping in the vehicle width direction, and therefore, the distance between the LED light sources 81, 82 can be increased to avoid concentration of heat emitted from the LED light sources 81, 82.

The low beam side LED light sources 71 are disposed offset rearward of the vehicle with respect to the high beam side LED light sources 81 when viewed from the side of the vehicle. The front end of the first base plate 74 extends to the front end of the first reflecting surface 96, which is the intermediate portion of the entire headlamp 60 in the vehicle longitudinal direction. The front end of the second base plate 85 extends to a position slightly forward of the middle of the entire headlight 60 in the vehicle longitudinal direction, that is, the front end of the second reflecting surface 99. Further, the front end of the second reflecting surface 99 is located at substantially the same position as the front end of the second light guide hole 104 in the vehicle front-rear direction.

Further, the partition wall 93 protrudes to the vicinity of the lens 111. If the light source is a bulb, the interior of the headlamp 60 is heated by heat generated by the bulb, and the partition wall is not extended to the vicinity of the lens 111 in consideration of air circulation inside. In this regard, in the present invention, since the light source is an LED, heat generation can be suppressed as compared with a bulb, and the partition wall 93 can be provided so as to extend to the vicinity of the lens 111.

next, the shapes of the first reflection surface 96 and the second reflection surface 99 will be described.

As shown in fig. 7 and 9, a light guide space for guiding light from the light sources 81 and 82 to the second reflecting surface 99 is provided below the light sources 81 and 82 provided on the second substrate 85. The lower second reflecting surface 99 is formed in a parabolic shape in a plan view. Therefore, the light from the front surface is collected at one focal point and the focal point is passed through the light guiding space to be collected at the black substrate 85 in the embodiment, whereby the light emitting space on the lower side can be made darker than the light emitting space on the upper side when not illuminated. The upper first reflecting surface 96 is not formed in a parabolic shape in a plan view. By forming the upper first reflecting surface 96 and the lower second reflecting surface 99 in different shapes, a difference in color can be formed between the upper light-emitting space and the lower light-emitting space to enhance contrast, and the appearance can be improved.

The function of the headlamp 60 described above is discussed next.

Fig. 11(a) is a view for explaining the traveling direction of light from the position light LED light source 82 when viewed from the side of the vehicle. The light emitted from the position light LED light source 82 passes through the second light guide hole 104 and is emitted to the lower side of the partition wall 93. The light from the position light LED light source 82 is further reflected by the third reflecting surface 100 as indicated by an arrow (1) and is irradiated in the substantially horizontal direction toward the front of the vehicle. As a result, the lower light emitting part 121 below the partition wall 93 emits light.

Fig. 11(b) is a view explaining the traveling direction of light from the low beam side LED light source 71 when viewed from the vehicle side. The light emitted from the low beam side LED light source 71 passes through the first light guide hole 103 and is emitted to the upper side of the partition wall 93. The light from the low beam side LED light source 71 is further reflected by the first reflecting surface 96 as indicated by an arrow (2) and is irradiated downward. As a result, the upper light emitting part 122 above the partition emits light.

Fig. 11(c) is a view explaining the traveling direction of light from the high beam side LED light source 81 when viewed from the vehicle side. The light emitted from the high beam side LED light source 81 passes through the second light guide hole 104 and is emitted to the lower side of the partition wall 93. The light from the high beam side LED light source 81 is further reflected by the second reflecting surface 99 as indicated by arrow (3) and is irradiated toward the front of the vehicle in a substantially horizontal direction. As a result, the lower light emitting part 121 below the partition wall 93 emits light. The traveling direction of the light from the high beam side LED light source 81 is substantially the same as the traveling direction of the light from the position light LED light source 82.

in general, when only the low beam side LED light source 71 is illuminated, the low side light emitting unit 122 becomes dark because the high beam side LED light source 81 is not illuminated. However, the entire interior of the headlamp 60 divided by the partition wall 93 can be illuminated by the third reflecting surface 100 of the second reflecting surface 99 that irradiates the high beam side LED light source 81 with light from the position light LED light source 82. That is, in the headlight 60 in which the low beam region and the high beam region are divided by the partition wall 93, the area of the light emitting portion of the headlight 60 can be increased even in the low beam illumination.

In the embodiment, light is irradiated only from the low beam side LED light source 71 and the position lamp LED light source 82 in the low beam illumination, and light is irradiated from the high beam side LED light source 81, the low beam side LED light source 71, and the position lamp LED light source 82 in the high beam illumination, but the invention is not limited thereto. For example, in the low beam illumination, light may be irradiated only from the low beam side LED light source 71 and the position light LED light source 82, and in the high beam illumination, light may be irradiated from the high beam side LED light source 81 and the low beam side LED light source 71. Further, the high beam side LED light source 81, the low beam side LED light source 71, and the position light LED light source 82 may be independently illuminated.

Next, the operation of the position lamp LED light source 82 in a plan view will be described.

As shown in fig. 12, in a plan view, light from the high-beam-side LED light source 81 (see fig. 11) is converged as indicated by an arrow (4) and emitted toward the front of the vehicle. On the other hand, light from the position light LED light source 82 (see fig. 11) is diffused as indicated by arrow (5) by the bottom portion 106 and the left and right side surface portions 107 and 107 (see fig. 9) and is emitted toward the front of the vehicle. Therefore, the area of the light emitting portion can be made larger as viewed from the front of the vehicle.

Example 2

next, embodiment 2 of the present invention will be described with reference to the drawings. The same components as those shown in fig. 3 are denoted by the same reference numerals, and detailed description thereof is omitted.

As shown in fig. 13 and 14, the headlamp 60 includes: a housing 61; a low beam side LED light source 71, a high beam side LED light source 81, and a position light LED light source 82 that irradiate light; a reflector 91 that reflects light, and a lens 111 that transmits light.

the left and right low-beam LED light sources 71 are disposed on the first substrate 74 so as to irradiate downward. The left and right low beam side LED light sources 71 are disposed at positions to irradiate the first reflecting surface 96.

On the second substrate 85, left and right high beam side LED light sources 81 and position light LED light sources 82 are provided so as to irradiate downward. The second reflecting surface 99 is curved so that left and right portions are recessed, and reflects light from the left and right high-beam-side LED light sources 81 forward while focusing the light.

A third reflecting surface 110 that reflects light from the position light LED light source 82 is formed at the center in the vehicle width direction of the second reflecting surface 99. The third reflecting surface 110 constitutes a part of the second reflecting surface 99. The third reflecting surface 110 has a protruding portion 115 protruding upward. The protruding portion 115 is composed of an upper surface portion 116 and left and right side surface portions 117 extending downward from the edge of the upper surface portion 116.

The upper surface 116 and the left and right side surfaces 117 are formed with reflecting surfaces. Therefore, the light from the position light LED light source 82 is emitted so as to be diffused in the upper surface portion 116 and the left and right side surface portions 117, whereby the light emitting area can be increased. Further, by irradiating the protruding upper surface portion 116, it is possible to further improve the appearance as if the lighting is performed in a place where the front is floating.

The body cover structure of a motorcycle according to the present invention is applied to a scooter type vehicle in the embodiment, but is not limited thereto, and may be applied to other general vehicles such as a saddle type vehicle, a tricycle, a four-wheel vehicle, and the like as long as the vehicle has a headlamp in which a low beam region and a high beam region are separated by a partition wall. In the embodiment, the upper side of the partition wall is set to the irradiation region to be irradiated with the low beam side LED light source, and the lower side of the partition wall is set to the irradiation region to be irradiated with the high beam side LED light source and the position light LED light source. Further, an irradiation region irradiated with the low beam side LED light source and an irradiation region irradiated with the high beam side LED light source and the position light LED light source may be divided into left and right by the partition wall.

Industrial applicability

The headlamp of the invention is suitable for motor bicycle.

Description of the reference numerals

10 motorcycle (vehicle), 60 head lamp, 61 casing, 71 dipped beam side LED light source, 74 first base plate, 75, 86 engaging member, 76, 87 engaging hole, 81 high beam side LED light source, 82 position lamp LED light source, 85 second base plate, 91 reflector, 92 front opening, 93 partition wall, 96 first reflecting surface, 99 second reflecting surface, 100, 110 third reflecting surface, 103 first light guiding hole, 104 second light guiding hole, 105 concave shape part, 106 bottom part, 107 side part, 111 lens, 115 projecting part, 116 upper surface part, 117 side part.

Claims

1. a headlamp (60) having: a housing (61); a low beam side LED light source (71), a high beam side LED light source (81), and a position light LED light source (82) that are housed in the case (61) and irradiate light; a reflector (91) which is provided with a front opening (92) and reflects the light irradiated from the light source; a lens (111) provided in the housing (61) and covering the front opening (92); and a partition wall (93) extending from the reflector (91) to the vicinity of the lens (111) and vertically dividing the front opening (92),

A first reflecting surface (96) is provided on the reflector (91) at a position above the partition wall (93), a second reflecting surface (99) is provided at a position below the partition wall (93),

The low-beam-side LED light source (71) is disposed at a position that irradiates one of the first reflection surface (96) and the second reflection surface (99),

The high beam side LED light source (81) and the position lamp LED light source (82) are arranged at positions for irradiating to the other of the first reflecting surface (96) and the second reflecting surface (99),

Third reflecting surfaces (100, 110) for reflecting light from the position light LED light source (82) are provided continuously to the first reflecting surface (96) or the second reflecting surface (99) for reflecting light from the high-beam-side LED light source (81),

The third reflecting surfaces (100, 110) are integrally formed on the reflecting surface that reflects the light of the high-beam-side LED light source (81),

the third reflecting surface (100) has a concave portion (105) recessed downward,

The concave part (105) is composed of a bottom part (106) and left and right side surface parts (107) rising from the edge of the bottom part (106),

Reflecting surfaces are formed on the left and right side surface parts (107) and the bottom part (106),

The left and right side surface parts (107) are connected to each other at the lower end of the third reflecting surface.

2. A headlamp (60) having: a housing (61); a low beam side LED light source (71), a high beam side LED light source (81), and a position light LED light source (82) that are housed in the case (61) and irradiate light; a reflector (91) which is provided with a front opening (92) and reflects the light irradiated from the light source; a lens (111) provided in the housing (61) and covering the front opening (92); and a partition wall (93) extending from the reflector (91) to the vicinity of the lens (111) and vertically dividing the front opening (92),

The third reflecting surface (110) has a protruding portion (115) protruding upward,

The protruding part (115) is composed of an upper surface part (116) and left and right side surface parts (117) extending downward from the edge of the upper surface part (116),

Reflecting surfaces are formed on the left and right side surface parts (117) and the upper surface part (116),

3. The headlamp according to claim 1,

A first substrate (74) is disposed on the upper portion of the reflector (91),

A second substrate (85) at least partially disposed in the partition wall (93) is provided at a vertically intermediate portion of the reflector (91),

The high-beam-side LED light source (81) and the position light LED light source (82) are disposed on one of the first substrate (74) and the second substrate (85).

4. the headlamp according to claim 2,

A first substrate (74) is disposed on the upper portion of the reflector (91),

5. The headlamp according to claim 3,

Engaging holes (76, 87) penetrating in the vertical direction are formed in at least one of the first substrate (74) and the second substrate (85),

Engaging members (75, 86) are inserted into the engaging holes (76, 87) in the vertical direction, and at least one of the first substrate (74) and the second substrate (85) is engaged with the reflector (91).

6. The headlamp according to claim 4,

7. The headlamp according to any one of claims 1 to 6,

A first substrate (74) is disposed on the upper portion of the reflector (91),

A light guide hole (103) for guiding light from the high beam side LED light source (81) or the low beam side LED light source (71) to the first reflection surface (96) is formed in the reflector (91) below the high beam side LED light source (81) or the low beam side LED light source (71) provided on the first substrate (74),

The light guide hole (103) has a hole shape along the shape of the first reflection surface (96).

8. The headlamp according to any one of claims 1 to 6,

the high beam side LED light sources (81) are arranged on the left and right sides in the vehicle width direction,

The left and right high beam side LED light sources (81) and the position lamp LED light sources (82) are arranged such that the left and right adjacent LED light sources are offset from each other in the vehicle front-rear direction.

9. the headlamp of claim 7,

10. The headlamp according to claim 1,

The bottom portion (106) includes a first bottom portion (106a) extending in a substantially vertical direction, and a second bottom portion (106b) continuously formed from the first bottom portion (106a) and extending in a substantially vertical direction.