WO2012070169A1 - Headlight and saddled vehicle equipped with same - Google Patents

Headlight and saddled vehicle equipped with same Download PDF

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Publication number
WO2012070169A1
WO2012070169A1 PCT/JP2011/003172 JP2011003172W WO2012070169A1 WO 2012070169 A1 WO2012070169 A1 WO 2012070169A1 JP 2011003172 W JP2011003172 W JP 2011003172W WO 2012070169 A1 WO2012070169 A1 WO 2012070169A1
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WO
WIPO (PCT)
Prior art keywords
reflector
light
light source
headlamp
view
Prior art date
Application number
PCT/JP2011/003172
Other languages
French (fr)
Japanese (ja)
Inventor
山田　剛
Original Assignee
ヤマハ発動機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ヤマハ発動機株式会社 filed Critical ヤマハ発動機株式会社
Publication of WO2012070169A1 publication Critical patent/WO2012070169A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/28—Cover glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J6/00—Arrangement of optical signalling or lighting devices on cycles; Mounting or supporting thereof; Circuits therefor
    • B62J6/02—Headlights
    • B62J6/022—Headlights specially adapted for motorcycles or the like
    • B62J6/024—Switching between high and low beam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J6/00—Arrangement of optical signalling or lighting devices on cycles; Mounting or supporting thereof; Circuits therefor
    • B62J6/02—Headlights
    • B62J6/022—Headlights specially adapted for motorcycles or the like
    • B62J6/026—Headlights specially adapted for motorcycles or the like characterised by the structure, e.g. casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
    • F21S41/336—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors with discontinuity at the junction between adjacent areas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
    • F21S45/48—Passive cooling, e.g. using fins, thermal conductive elements or openings with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/36—Combinations of two or more separate reflectors
    • F21S41/365—Combinations of two or more separate reflectors successively reflecting the light

Definitions

  • the present invention relates to a headlamp and a straddle-type vehicle equipped with the same.
  • a light source of a headlamp mounted on a vehicle is composed of a bulb such as a halogen lamp or a xenon lamp.
  • the bulb emits light in all directions. Therefore, the reflector is shaped to cover the entire periphery of the bulb.
  • a light source with an LED (Light Emitting Diode) instead of a bulb.
  • a light source includes an LED and a substrate on which the LED is provided.
  • the LED emits light toward only one side of the substrate and does not emit light toward the other side (back side) of the substrate. Therefore, it is sufficient for the reflector to have a shape that covers only one side of the substrate.
  • LEDs tend to emit strong light around one direction. Therefore, if the reflector includes this one direction, a sufficient amount of light can be irradiated forward. Therefore, the area of the reflector can be further reduced.
  • the reflector can be made smaller than in the case of the light source having the bulb, and the headlamp can be downsized.
  • the conventional example having such a configuration has the following problems. That is, when the headlamp that irradiates the low beam is viewed from the outside, the headlamp itself looks bright. This is because the reflector scatters a part of the light of the light source, so that the reflector itself becomes bright as if illuminated. For this reason, when the headlamp is irradiating the low beam, the driver / occupant of the pedestrian or the oncoming vehicle can visually recognize the brightened area (that is, the reflector area) without being dazzled. . And a pedestrian etc. can recognize that it is a headlamp and can recognize presence of a vehicle.
  • the headlamp 11 is easily visible to a third party such as a pedestrian is referred to as “visibility”.
  • visibility whether or not a vehicle occupant can easily visually recognize the front of the headlamp 11 is referred to as “visibility”.
  • the present invention has been made in view of such circumstances, and an object of the present invention is to provide a headlamp capable of improving visibility while reducing size and a straddle-type vehicle including the headlamp. To do.
  • the present invention has the following configuration. That is, the present invention is a headlamp capable of irradiating a low beam and a high beam, and focuses on a first light source composed of LEDs and the vicinity of the position of the first light source, and reflects the light of the first light source.
  • 2 is a headlamp including a reflector and a light recovery member that guides the light of the first light source that is detached from the first reflector to the second reflector.
  • the direct light of the first light source mainly travels toward the first reflector.
  • the first reflector reflects the direct light of the first light source toward the front.
  • the reflected light illuminates the front with a low beam light distribution pattern. That is, the first reflector emits a low beam.
  • the first reflector itself becomes bright as if illuminated by the direct light of the first light source.
  • part of the direct light from the first light source does not travel toward the first reflector, but travels away from the first reflector.
  • the light recovery member guides such light to the second reflector. Therefore, the second reflector itself is also brightened as illuminated by the light guided to the light recovery member.
  • the LED of the second light source when the LED of the second light source emits light, the light of the second light source travels toward the second reflector.
  • the second reflector reflects the direct light of the second light source toward the front.
  • the reflected light illuminates the front with a high beam light distribution pattern. That is, the second reflector emits a high beam.
  • the headlamp when the first light source is turned on, the headlamp emits a low beam. At this time, not only the first reflector but also the second reflector is brightened. In this way, since the brightened area is relatively wide, a third person such as a pedestrian or an oncoming vehicle can easily see the headlamp. Moreover, since the area
  • the vicinity of the position of the first light source / second light source is a focal point means that the first reflector / second light source is positioned so that the first light source / second light source is located at or near the position of the focus. It means that a reflector is arranged.
  • the “nearby” means that the position of the first light source that can substantially form a low beam light distribution pattern without hindrance.
  • the “near” means including the position of the second light source that can substantially form a high beam light distribution pattern without any trouble.
  • the second reflector reflects light guided by the light recovery member in a direction inclined downward as it travels forward.
  • the second reflector irradiates light in a direction inclined downward from the horizontal. For this reason, it is possible to prevent the headlamp from being dazzled when the low beam is irradiated.
  • the second reflector reflects the light guided by the light recovery member in a direction inclined downward relative to the direction of the low beam. According to this, the light irradiated by the second reflector illuminates a range in front of the low beam. In other words, the light irradiated by the second reflector can illuminate the range of the road surface closer to the headlamp than the low beam. Therefore, when the first light source is lit, a wider road surface area can be illuminated.
  • the light recovery member is disposed behind the first light source in a plan view. According to such an arrangement, even if the light recovery member is provided at a position close to the first light source, it can be easily avoided that the light recovery member prevents the low beam irradiation. Therefore, compared with the case where the light recovery member is disposed in front of the first light source in plan view, the light recovery member can be appropriately provided at a position close to the first light source. As a result, the light recovery member can efficiently recover the light from the first light source that has shifted to the outside of the rear end of the first reflector.
  • the second light source is provided so that an optical axis thereof is directed upward
  • the second reflector is disposed above the second light source
  • the light recovery member is the first light source in a plan view. It is preferable to arrange in front of the two light sources.
  • the direct light from the second light source travels upward.
  • the second reflector reflects this light and emits a high beam.
  • the first light source is turned on
  • the light recovery member guides the light from the first light source to the second reflector.
  • the light guided by the light recovery member is in front of the second light source disposed in the vicinity of the focal point of the second reflector. The light enters the second reflector from the position. Therefore, the second reflector can reflect the light guided by the light recovery member and irradiate the light in a direction inclined downward from the high beam.
  • the first light source is disposed in front of the second light source in a plan view so that the optical axis thereof is directed downward, and the first reflector is disposed below the first light source.
  • the light recovery member is preferably disposed between the first light source and the second light source in plan view. According to this arrangement, the first light source, the light recovery member, and the second light source are arranged in this order from the front side in a plan view. That is, the light recovery member is located behind the first light source. Therefore, the light recovery member can efficiently recover the light of the first light source that has come off the first reflector. Further, since the second light source is located behind the first light source, a second reflector that is larger than the first reflector can be suitably installed.
  • the first light source, the second light source, and the light recovery member are arranged so as to overlap each other in a front view.
  • the first light source, the second light source, and the light recovery member are arranged in a line in the front-rear direction. According to such an arrangement, the height of the headlamp can be kept low.
  • the first reflector and the second reflector can be brought close to each other when viewed from the front.
  • the first light source is provided such that its optical axis is inclined backward with respect to the vertical direction
  • the second light source is provided so that its optical axis is inclined backward with respect to the vertical direction. It is preferable to be provided. According to this, each of the first and second reflectors can efficiently irradiate a low beam or a high beam with a relatively small area. Therefore, the first and second reflectors can be easily downsized.
  • the light recovery member is an auxiliary reflector that reflects the light of the first light source that has been detached from the first reflector toward the second reflector. According to this, the light recovery member can be realized with a simple structure.
  • the auxiliary reflector includes a reflecting surface that is inclined so as to become higher toward the rear side.
  • the auxiliary reflector can favorably reflect the light of the first light source toward the second reflector disposed above the auxiliary reflector.
  • the auxiliary reflector is provided so as to be close to a rear end of the first reflector.
  • the auxiliary reflector can efficiently collect the light from the first light source that has fallen outside the first reflector from the rear end of the first reflector.
  • the above-described invention further includes a support member that supports the first light source, and a cover member that covers the support member and reflects light, and the auxiliary reflector is formed on the cover member. It is preferable. Since the cover member that covers the support member also serves as the auxiliary reflector, the structure can be further simplified.
  • the above-described invention may further include an outer lens that covers openings in front of the first reflector and the second reflector, and the second reflector reflects light guided by the light recovery member toward the front.
  • the light guided by the light recovery member is reflected by the second reflector and travels toward the outer lens. Therefore, the light guided by the light recovery member can be used more effectively. Therefore, at least one of visibility and / or visibility can be further improved.
  • the outer lens has a scattering portion that is formed in a region of the outer lens that does not overlap the first reflector and the second reflector in a front view and scatters light.
  • the first light source is turned on
  • the second reflector irradiates the scattering part with light.
  • the whole scattering part can be surface-emitted.
  • the range in which the scattering portion is formed may be the entire region of the outer lens that does not overlap the first reflector and the second reflector in a front view, or a part thereof.
  • the present invention is a straddle-type vehicle provided with the above-described headlamp.
  • the visibility of the headlamp is high, so that a third person such as a pedestrian can recognize the presence of the straddle-type vehicle. .
  • the “saddle-type vehicle” includes a scooter type vehicle in which a rider can ride with his / her feet in addition to a vehicle in which the passenger can ride in a state where the rider straddles the saddle.
  • a headlamp capable of irradiating a low beam and a high beam which is disposed so as to face a first light source having an LED and the first light source, and reflects the light of the first light source to irradiate the low beam.
  • the direct light of the first light source mainly travels toward the first reflector.
  • the first reflector reflects the direct light of the first light source forward and irradiates the low beam. At this time, the first reflector becomes bright as if illuminated by the direct light of the first light source.
  • part of the direct light from the first light source travels away from the first reflector and enters the light recovery member.
  • the light recovery member guides such light to the second reflector. Therefore, the second reflector also becomes bright as if illuminated by the light guided to the light recovery member.
  • the headlamp when the headlamp is radiating a low beam, not only the first reflector but also the second reflector is brightened. As a result, when the headlamp is viewed from the outside, both regions of the first reflector and the second reflector appear bright. For this reason, the visibility of the headlamp can be improved while suppressing the first reflector to a relatively small area corresponding to the LED.
  • the first reflector is a parabolic mirror.
  • the first reflector is configured by a reflective surface divided into a plurality of parts.
  • the second reflector is configured by a reflecting surface divided into a plurality of parts.
  • the first reflector can suitably irradiate a low beam.
  • the second reflector can irradiate a high beam suitably.
  • the second light source is provided so that an optical axis thereof is directed downward, and the second reflector is disposed below the second light source, and the light recovery is performed.
  • the member is a headlamp disposed behind the second light source in plan view.
  • the second reflector when the second light source is turned on, the direct light from the second light source travels downward.
  • the second reflector reflects this light and emits a high beam.
  • the light recovery member guides the light of the first light source that has been removed from the first reflector to the second reflector.
  • the light guided by the light recovery member enters the second reflector from a position behind the focal point of the second reflector. .
  • the second reflector reflects the light guided by the light recovery member, and can irradiate the light in a direction inclined downward from the high beam.
  • the first light source is disposed so that an optical axis thereof faces upward and above the second light source in a front view, and the first reflector Is disposed above the first light source, and the light recovery member is disposed behind the first light source in plan view.
  • the first light source is disposed above the second light source and the first reflector is disposed above the first light source, the first reflector is above the second reflector. Is located. Moreover, since the light recovery member is disposed behind the first light source, the light of the first light source that is detached from the first reflector can be efficiently recovered.
  • the auxiliary reflector can reflect the light of the first light source toward the second reflector disposed below the auxiliary reflector.
  • the headlamp according to the above-described invention wherein the first light source and the second light source are arranged side by side so that the optical axis of the first light source faces downward.
  • the second light source is disposed such that an optical axis thereof is directed downward, and the first reflector and the second reflector are respectively arranged below the first light source and the second light source in a front view.
  • the auxiliary reflector is disposed behind the first light source in a plan view, and reflects the light of the first light source that is off the first reflector, and the second light source in a plan view.
  • a second auxiliary reflector that is arranged behind and reflects light reflected by the first auxiliary reflector toward the second reflector.
  • the first reflector and the second reflector are arranged so as to be arranged in the lateral direction in a front view.
  • the auxiliary reflector configured to include the first auxiliary reflector and the second auxiliary reflector, the light of the first light source that is out of the first reflector is preferably guided to the second reflector. Can do.
  • the first auxiliary reflector reflects the light of the first light source that is out of the first reflector, and irradiates the substantially parallel light toward the second auxiliary reflector. it can.
  • the 1st auxiliary reflector can guide the light of the 1st light source which removed from the 1st reflector to the 2nd auxiliary reflector appropriately.
  • the light recovery member is a light guide that receives and propagates light from the first light source that is detached from the first reflector, and radiates the light toward the second reflector. There is a headlight.
  • the light recovery member is a light guide, light can be propagated to an arbitrary position. Therefore, the light recovery member can emit light toward the second reflector from any position. That is, regardless of how the first light source, the second reflector, and the like are arranged, the light recovery member can be provided easily and appropriately.
  • the second reflector reflects the light guided by the light recovery member, so that the region (A1) of the outer lens that overlaps the first reflector in a front view, the front reflector in the region One or two regions of the outer lens region (A2) that overlaps the second reflector and the outer lens region (A3, B) that does not overlap any of the first reflector and the second reflector in front view A headlamp that emits light toward
  • the second reflector reflects the light guided by the light recovery member, so that the outer lens region does not overlap with either the first reflector or the second reflector in a front view ( A headlamp that irradiates light toward a region including at least A3 and B).
  • the second reflector when the second reflector reflects light toward the area (A1), the front of the headlamp can be illuminated more brightly. That is, the visibility of the headlamp can be further improved.
  • the second reflector when the second reflector reflects light toward the region (A2), the visibility of the headlamp can be further improved.
  • the second reflector when the second reflector reflects light toward the area (A3, B), at least one of making the area itself bright and illuminating the front of the headlamp brighter can be realized. Therefore, according to the invention described in (12) and (13), the visibility and / or visibility of the headlamp can be improved.
  • the second reflector reflects the light guided by the light recovery member, so that the outer lens region (A2) overlaps the second reflector in front view, and in front view.
  • the second reflector reflects the light guided by the light recovery member, so that the outer lens region (A2) overlaps the second reflector in front view, and in front view.
  • the second reflector reflects the light guided by the light recovery member, so that the outer lens region does not overlap with either the first reflector or the second reflector in a front view ( A headlamp that irradiates light only to A3, B).
  • the visibility and / or visibility of the headlamp can be improved.
  • the second reflector reflects the light guided by the light recovery member, so that the outer lens region (A1) overlaps the first reflector in front view, and the first reflector in front view.
  • the second reflector reflects the light guided by the light recovery member to light toward an area including at least the outer lens area (B) where the scattering portion is formed. A headlamp to irradiate.
  • the region itself can be brightened.
  • the front of the headlamp can be illuminated more brightly. Therefore, according to the inventions described in (14) and (15), the visibility and / or visibility of the headlamp can be improved.
  • the second reflector reflects the light guided by the light recovery member, so that the region of the outer lens (A2) overlapping the second reflector in a front view, and the scattering portion
  • the headlamp which irradiates light toward at least one of the area
  • the second reflector reflects the light guided by the light recovery member, so that the region (A2) of the outer lens that overlaps with the second reflector in a front view, and the scattering portion The headlamp which irradiates light toward both the area
  • the second reflector irradiates light toward only the outer lens region (B) where the scattering portion is formed by reflecting the light guided by the light recovery member. Headlight.
  • the visibility and / or visibility of the headlamp can be improved.
  • the outer lens region (B) where the scattering portion is formed is the outer lens region corresponding to the front of the first light source.
  • a region of the outer lens in which the scattering portion is formed is a headlamp that is a region corresponding to the front of the cover member in the outer lens.
  • the region is a region adjacent to the first reflector in a front view, the visibility of the headlamp can be effectively improved.
  • the direct light of the first light source mainly travels toward the first reflector.
  • the first reflector reflects the direct light of the first light source toward the front.
  • the reflected light illuminates the front with a low beam light distribution pattern.
  • the first reflector becomes bright as if illuminated by the direct light of the first light source.
  • part of the direct light from the first light source travels away from the first reflector and enters the light recovery member.
  • the light recovery member guides such light to the second reflector. Therefore, the second reflector also becomes bright as if illuminated by the light guided to the light recovery member.
  • the LED of the second light source emits light
  • the light of the second light source travels toward the second reflector.
  • the second reflector reflects the direct light of the second light source toward the front.
  • the reflected light illuminates the front with a high beam light distribution pattern.
  • the headlamp when the first light source is turned on, the headlamp emits a low beam. At this time, not only the first reflector but also the second reflector is brightened. As a result, when the headlamp is viewed from the outside, a wider area appears brighter than the first reflector. For this reason, the visibility of the headlamp can be improved while suppressing the first reflector to a relatively small area corresponding to the LED and reducing the size of the headlamp.
  • the saddle riding type vehicle when a low beam is irradiated with the headlamp, a pedestrian or the like can easily see the headlamp.
  • FIG. 1 is a side view showing a schematic configuration of a motorcycle according to a first embodiment.
  • 1 is a perspective view of a headlamp according to Embodiment 1.
  • FIG. It is a perspective view of a fin member and a supporting member.
  • 1 is a vertical sectional view of a headlamp according to Embodiment 1.
  • FIG. It is a principal part perspective view of the headlamp concerning Example 1.
  • FIG. 1 is a plan view of a main part of a headlamp according to Embodiment 1.
  • FIG. 1 is a front view of a headlamp according to Embodiment 1.
  • FIG. FIG. 3 is a front view of a main part of the outer lens according to Example 1. It is a schematic diagram explaining operation
  • FIG. 1 is a figure which shows typically the range of the road surface illuminated by the headlamp of Example 1
  • FIG. 2 is a figure which shows typically the range of the road surface illuminated by the headlamp of a prior art example. .
  • (A) is a front view of the headlamp which shows a mode when the headlamp which concerns on Example 1 lights a low beam
  • (b) is when the headlamp which concerns on a prior art example lights a low beam
  • FIG. It is a principal part perspective view which shows the housing inside of the headlamp which concerns on Example 3.
  • FIG. It is a principal part side view which shows the inside of the housing
  • FIG. It is a schematic diagram explaining operation
  • FIG. 1 is a side view showing a schematic configuration of the motorcycle according to the first embodiment.
  • the left side of the drawing is the front side of the motorcycle 1.
  • the motorcycle 1 includes a main frame 3.
  • An engine 5 is supported at the lower part of the main frame 3.
  • a fuel tank 7 is attached to the front side of the upper part of the main frame 3.
  • a seat 9 is attached to the rear side of the upper portion of the main frame 3.
  • a steering shaft (not shown) is rotatably supported at the front end of the upper part of the main frame 3.
  • a headlamp 11 is supported on the steering shaft.
  • a handle bar 13 is provided on the upper portion of the steering shaft. The handle bar 13 is provided with a switch for blinking the headlamp 11, a switch (not shown) for switching between a low beam and a high beam.
  • a front fork 15 is connected to the lower portion of the steering shaft.
  • a front wheel 17 is rotatably supported at the lower portion of the front fork 15.
  • a swing arm 21 is swingably connected to the rear end of the lower part of the main frame 3.
  • a rear wheel 23 is rotatably supported at the rear end of the swing arm 21.
  • a driven sprocket 25 that rotates integrally with the rear wheel 23 is connected to the rear wheel 23.
  • a chain 27 is hung around the driven sprocket 25. The chain 27 is further wound around a drive sprocket (not shown).
  • the power generated by the engine 5 is output to the drive sprocket.
  • the power output to the drive sprocket is transmitted to the rear wheel 23 via the chain 27 and the driven sprocket 25.
  • the rear wheel 23 rotates and the motorcycle 1 moves forward.
  • the motorcycle 1 corresponds to the saddle riding type vehicle in the present invention.
  • FIG. 2 is a perspective view of the headlamp according to the embodiment.
  • the headlamp 11 includes a housing 31 and an outer lens 33.
  • the casing 31 has a cylindrical shape and has an opening at the front.
  • the outer lens 33 is provided so as to cover the opening.
  • the outer lens 33 has a transparent first region A through which light passes and a second region B through which light is scattered.
  • the first region A is formed on the upper and lower portions of the outer lens 33.
  • the second region B is formed at a substantially central portion of the outer lens 33, that is, between the upper and lower first regions A.
  • a scattering portion 34 for scattering light is provided in the second region B.
  • the scattering part 34 has a plurality of convex parts 34 a formed on the inner surface of the outer lens 33 in multiple stages in the vertical direction.
  • Each convex portion 34a has a shape that is continuous in a bowl shape in the lateral direction (see also FIG. 4).
  • a fin member 35 for radiating heat is provided outside the housing 31.
  • the material of the fin member 35 is preferably a metal such as aluminum.
  • FIG. 3 is a perspective view of the fin member and the support member.
  • a support member 37 is integrally connected to the front portion of the fin member 35.
  • the fin member 35 and the support member 37 constitute a heat radiating member 39.
  • the support member 37 has a substantially plate shape.
  • the support member 37 has an opening C and a recess D. The opening C is disposed in front of the recess D.
  • the opening C is formed so as to penetrate the support member 37 in the vertical direction.
  • the opening C is formed by four inner wall surfaces. Of the four inner wall surfaces of the opening C, the rear inner wall surface 37a is inclined. Although not shown in FIG. 3, the inner wall surface on the front side of the opening C (an inner wall surface 37 d described later) is also inclined. Thereby, the space formed by the opening C exhibits a shape like a square column inclined obliquely.
  • the recess D is formed on the upper surface of the support member 37.
  • the recess D is formed by a front inner wall surface 37b, a rear inner wall surface 37c, and the like.
  • Each of the inner wall surface 37b and the inner wall surface 37c is inclined, and the recess D is recessed in a substantially V shape in a cross-sectional view.
  • FIG. 4 is a vertical sectional view of the headlamp according to the embodiment.
  • the left side of the drawing is the front side of the headlamp 11.
  • the upper side of the drawing is the upper side of the headlamp 11
  • the lower side of the drawing is the lower side of the headlamp 11.
  • the support member 37 is disposed inside the housing 31. Specifically, the support member 37 is inserted into the housing 31 through the opening at the rear of the housing 31. The rear opening of the housing 31 is closed by the front surface of the fin member 35.
  • the support member 37 supports the first light source 41 and the second light source 44.
  • the first light source 41 emits light for low beam, and the second light source 44 emits light for high beam.
  • the first light source 41 is attached to the inner wall surface 37d on the front side of the opening C.
  • the second light source 44 is attached to the inner wall surface 37b of the recess D.
  • the first light source 41 includes a substrate 42 and an LED (Light Emitting Diode) 43.
  • the substrate 42 has a substantially rectangular plate shape.
  • An LED 43 is attached to one surface 42 a of the substrate 42.
  • substrate 42 may be single, and plural may be sufficient as it.
  • the other surface (back surface) of the substrate 42 is in contact with the inner wall surface 37 d of the opening C.
  • the first light source 41 configured in this manner emits light only on the one surface 42a side of the substrate 42 and does not emit light on the back surface side of the substrate 42.
  • the one surface 42a of the substrate 42 is appropriately referred to as a “light emitting surface 42a”.
  • the first light source 41 is installed such that the light emitting surface 42a faces downward.
  • the first light source 41 tends to irradiate strong light around one direction.
  • this one direction is referred to as “optical axis P” for convenience.
  • the optical axis P of the first light source 41 is perpendicular to the substrate 42 and substantially coincides with the axis passing through the LED 43.
  • the first light source 41 is installed so that its optical axis P faces downward.
  • the 1st light source 41 is installed so that the optical axis P may incline back with respect to a perpendicular direction.
  • the vertical direction is synonymous with the vertical direction of the headlamp 11.
  • the second light source 44 has the same structure as the first light source 41. That is, the second light source 44 includes a substrate 45 and an LED 46.
  • the substrate 45 corresponds to the substrate 42 described above, and the LED 46 corresponds to the LED 43 described above.
  • the back surface of the substrate 45 is in contact with the inner wall surface 37b of the recess D.
  • the second light source 44 is installed such that the light emitting surface 45a faces upward.
  • the second light source 44 is installed such that its optical axis Q is upward. More specifically, the second light source 44 is installed such that its optical axis Q is inclined backward with respect to the vertical direction.
  • a first reflector 47 for irradiating a low beam and a second reflector 49 for irradiating a high beam are further provided.
  • the first reflector 47 is provided below the first light source 41.
  • the first reflector 47 is disposed so as to intersect the optical axis P of the first light source 41. Further, the first reflector 47 is arranged so that the rear end 47 a is lower than the height position of the LED 43.
  • the first light source 41 and the first reflector 47 are arranged so that the position of the first light source 41 or the vicinity thereof coincides with the position of the focal point of the first reflector 47. Therefore, the light from the first light source 41 enters the first reflector 47 from the vicinity of the focal point of the first reflector 47.
  • the 1st reflector 47 reflects the light of the 1st light source 41 toward the front.
  • the first reflector 47 is designed so that the light irradiated forward by the first reflector 47 forms a low beam light distribution pattern.
  • the light emitted by the first reflector 47 when the first light source 41 is turned on is particularly referred to as “low beam”.
  • the second reflector 49 is provided above the second light source 44.
  • the second reflector 49 is disposed so as to intersect the optical axis Q of the second light source 44. Further, the second reflector 49 is arranged so that the rear end 49 a is higher than the height position of the LED 46.
  • the second reflector 49 is focused on the position of the second light source 44 or the vicinity thereof. Therefore, the light from the second light source 44 enters the second reflector 49 from the vicinity of the focal point of the second reflector 49.
  • the second reflector 49 reflects the light and irradiates the light forward.
  • the second reflector 49 is designed such that the light irradiated forward by the second reflector 49 forms a high beam light distribution pattern.
  • the light emitted by the second reflector 49 when the second light source 44 is turned on is particularly referred to as “high beam”.
  • the first reflector 47 and the second reflector 49 are provided so that their reflecting surfaces face each other. Further, in the side view, the arc formed by the second reflector 49 is longer than the arc formed by the first reflector 47. In other words, the second reflector 49 is longer in the front-rear direction than the first reflector 47.
  • FIG. 5 is a perspective view of a main part of the headlamp according to the embodiment.
  • the first reflector 47 is constituted by a reflective surface 47b divided into a plurality of parts.
  • the 2nd reflector 49 is comprised by the reflective surface 49b divided
  • the first reflector 47 and the second reflector 47 are based on a parabolic mirror.
  • a cover member 51 for covering the support member 37 is further provided inside the housing 31.
  • the cover member 51 has a flat box shape.
  • the cover member 51 is provided so as to cover the support member 37.
  • the cover member 51 is subjected to vapor deposition treatment or plating treatment of aluminum or the like, and reflects light in the same manner as the first and second reflectors 47 and 49.
  • An opening E corresponding to the opening C is formed on the upper surface of the cover member 51.
  • the cover member 51 has an inclined surface 51 a provided behind the opening E.
  • the inclined surface 51 a faces the LED 43 of the first light source 41.
  • the inclined surface 51a is inclined so as to become higher toward the rear side.
  • the front end of the inclined surface 51 a is close to the rear end 47 a of the first reflector 47.
  • the inclined surface 51a corresponds to an auxiliary reflector in the present invention.
  • openings and cutouts are formed on the upper and lower surfaces of the cover member 51 so that the cover member 51 does not block the light of the first light source 41 and the second light source 44.
  • FIG. 6 is a plan view of an essential part of the headlamp according to the embodiment.
  • the left side of the drawing corresponds to the front side of the headlamp 11
  • the right side of the drawing corresponds to the rear side of the headlamp 11.
  • the first light source 41, the inclined surface 51a, and the second light source 44 are arranged in a line in the front-rear direction in plan view. That is, the inclined surface 51a is located behind the first light source 41, and the second light source 44 is located behind the inclined surface 51a.
  • FIG. 7 is a front view of the headlamp according to the embodiment.
  • the scattering portion 34 of the outer lens 33 is not shown for convenience.
  • the first light source 41, the inclined surface 51a, and the second light source 44 are disposed so as to overlap each other in a front view.
  • the first light source 41, the inclined surface 51a, and the second light source 44 are arranged in a line in the front-rear direction.
  • the first reflector 47 is disposed above the second reflector 49 in the front view.
  • the first reflector 47 is close to the first light source 41, and the second reflector 49 is close to the second light source 44. Further, in the front view, the area of the first reflector 47 is larger than the area of the second reflector 49.
  • the cover member 51 is disposed between the first reflector 47 and the second reflector 49 in the front view. In the front view, the cover member 51 is close to the first reflector 47 and the second reflector 49, respectively.
  • FIG. 8 is a front view of the main part of the outer lens 33.
  • the first area A of the outer lens 33 described above overlaps the areas of the first reflector 47 and the second reflector 49 in a front view.
  • the first region A substantially includes a region A1 of the outer lens 33 that overlaps the first reflector 47 in the front view and a region A2 of the outer lens 33 that overlaps the second reflector 49 in the front view.
  • the first region A substantially includes a region A1 where the first reflector 47 is projected onto the outer lens 33 in a front view and a region A2 where the second reflector 49 is projected onto the outer lens 33 in a front view.
  • a region obtained by removing the region A1 and the region A2 from the first region A is referred to as “region A3”.
  • the second region B of the outer lens 33 overlaps the region of the cover member 51 in a front view.
  • the second region B substantially includes a region B1 of the outer lens 33 that overlaps the cover member 51 in a front view.
  • the second region B substantially includes a region B1 where the cover member 51 is projected onto the outer lens 33 in a front view. Therefore, it can be said that the scattering portion 34 formed in the second region B is provided at a position corresponding to the front of the cover member 51 in the outer lens 33 as shown in FIG.
  • the second region B is close to both the first reflector 47 and the second reflector 49 in front view.
  • the second region B does not substantially overlap any of the first reflector 47 and the second reflector 49 in front view.
  • the second region B substantially does not include the above-described region A1 and region A2.
  • region A3 and region B can be said to be regions of the outer lens 33 that do not overlap with either the first reflector 47 or the second reflector 49 in front view.
  • FIG. 9 is a schematic diagram for explaining the operation of the headlamp when the low beam is turned on.
  • the left side of the drawing is the front side of the headlamp.
  • the direct light of the first light source 41 travels downward about the optical axis P (the optical axis P is omitted in FIG. 9).
  • Direct light from the first light source 41 travels mainly toward the first reflector 47.
  • the first reflector 47 reflects the incident light.
  • the first reflector 47 emits the low beam L.
  • the low beam L passes through the first region A of the outer lens 33 and travels forward of the headlamp 11.
  • the low beam L illuminates the front of the motorcycle 1.
  • the reflectance of the first reflector 47 is not 100%, a part of the direct light of the first light source 41 is scattered by the first reflector 47. Due to this scattering, the first reflector 47 itself becomes bright as if illuminated. Therefore, the first reflector 47 itself appears bright through the first region A from the outside of the headlamp 11.
  • a part of the direct light of the first light source 41 proceeds in a direction deviating outward from the rear end 47a of the first reflector 47 and enters the inclined surface 51a.
  • the inclined surface 51 a reflects incident light toward the second reflector 49.
  • the second reflector 49 reflects this light and irradiates the light S toward the front (that is, the outer lens 33) as shown in FIG.
  • a part of the light guided by the inclined surface 51 a is scattered by the second reflector 49. Therefore, the second reflector 49 itself becomes bright as if illuminated. Therefore, the second reflector 49 itself also appears bright through the first area A from the outside of the headlamp 11.
  • the light S that is, the light S irradiated by the first reflector 47 when the first reflector 47 reflects the light guided by the inclined surface 51a is particularly referred to as an “auxiliary beam S”.
  • the light guided by the inclined surface 51a enters the second reflector 49 from a position ahead of the second light source (that is, near the focal point of the second reflector 49). For this reason, the auxiliary beam S irradiated by the second reflector 49 travels in a direction inclined downward from the high beam (indicated by reference numeral “H” in FIG. 11 described later).
  • the auxiliary beam S preferably travels in a direction inclined downward as it travels forward (that is, a direction inclined downward relative to the horizontal direction). Furthermore, the auxiliary beam S preferably travels in a direction inclined downward as compared to the direction of the low beam L.
  • the auxiliary beam S is set so as to substantially proceed toward the second region B. Therefore, the auxiliary beam S enters the second region B (scattering portion 34), and the scattering portion 34 scatters the incident light. Thereby, the surface outside the second region B emits light. Further, a part of the auxiliary beam S incident on the second region B (scattering portion 34) passes through the outer lens 33, proceeds further forward, and illuminates the road surface.
  • FIG. 10A is a diagram schematically showing the range of the road surface illuminated by the headlamp of this embodiment
  • FIG. 10B is a schematic diagram of the range of the road surface illuminated by the conventional headlamp.
  • the headlamp 11 illuminates the range LA and the range LS of the road surface G in front of the motorcycle 1.
  • the range LA is a range of the road surface G illuminated by the low beam L.
  • the range SA is a range of the road surface G illuminated by the auxiliary beam S.
  • the range SA is closer to the motorcycle 1 (headlight 11) than the range LA. That is, the headlamp 11 can illuminate the front side range SA in addition to the range LA illuminated by the low beam L.
  • the conventional headlamp irradiates only the low beam when the low beam is turned on. For this reason, the conventional headlamp illuminates only the range LA of the road surface G in front of the motorcycle 100. In other words, the conventional headlamp cannot illuminate a range in front of the range LA (that is, a range such as the above-described range SA).
  • FIG. 11 is a schematic diagram for explaining the operation of the headlamp when the high beam is turned on.
  • the left side of the drawing is the front side of the headlamp 11.
  • the rider of the motorcycle 1 When turning on the high beam, the rider of the motorcycle 1 operates the switch provided on the handle bar 13 to cause the second light source 44 to emit light. At this time, the first light source 41 is turned off. Direct light from the second light source 44 travels toward the second reflector 49. When this light enters the second reflector 49, the second reflector 49 reflects the light from the second light source 44. Thereby, the 2nd reflector 49 irradiates the high beam H toward the front. The high beam H illuminates the front of the motorcycle 1.
  • the heat generated by the first light source 41 when the low beam is turned on is radiated to the outside of the headlamp 11 through the support member 37 and the fin member 35.
  • heat generated by the second light source 44 is radiated to the outside of the headlamp 11 through the support member 37 and the fin member 35.
  • the outer lens 33 includes a scattering portion 34, and the second reflector 49 irradiates the auxiliary beam S toward the scattering portion 34.
  • the area B where the scattering portion 34 is provided emits surface light.
  • the scattering unit 34 can efficiently form the bright region of the headlamp 11 using the auxiliary beam S. As a result, the visibility of the headlamp 11 can be effectively improved.
  • FIG. 12A is a front view of the headlamp showing a state when the headlamp according to the first embodiment lights the low beam
  • FIG. 12B is a front view of the conventional headlamp according to the first example. It is a front view of the headlamp which shows a mode when it lights up.
  • the region that appears bright extends to the region of the first reflector 47, the region of the second reflector 49, and the region of the scattering portion 34. It is. In other words, the areas A1, A2, and B of the outer lens 33 appear bright when viewed from the front.
  • the area of the second reflector 49 is larger than the area of the first reflector 47.
  • the region B of the scattering portion 34 is adjacent to the first reflector 47 and the second reflector 49 in a front view. For this reason, the area where the headlamp 11 appears bright is one large area.
  • the cover member 51 since the area
  • the region that appears bright is only the region of the reflector 107 that irradiates the low beam.
  • the area of the headlamp 11 that appears bright can be made larger than the first reflector 47 without enlarging the first reflector 47. Therefore, when the low beam L is lit, the headlamp 11 is relatively conspicuous with respect to a third party and is easily visible. That is, the visibility of the headlamp 11 can be improved. For this reason, it is allowed to reduce the area of the first reflector 47 in accordance with the characteristics of the first light source 41 composed of the LEDs 43. Thereby, the headlamp 11 can be reduced in size.
  • the second reflector 49 irradiates the auxiliary beam S in a direction inclined downward from the direction of the high beam H. Therefore, it is possible to prevent the pedestrians from being dazzled when the low beam is turned on, and to prevent the pedestrians from being dazzled. In particular, if the auxiliary beam S is set to travel in a direction inclined downward from the horizontal direction, it can be reliably prevented that the auxiliary beam S is felt dazzling.
  • the auxiliary beam S can illuminate a range SA on the near side of the range LA illuminated by the low beam L. .
  • the passenger can also visually recognize the range SA on the near side, the passenger can be provided with a sense of security.
  • the passenger can visually recognize the condition of the road surface G near the motorcycle 1.
  • the effect of illuminating the range SA with the auxiliary beam S is particularly great.
  • the inclined surface 51 a is arranged behind the first light source 41. For this reason, the inclined surface 51 a can be installed at a position close to the first light source 41. Therefore, the inclined surface 51a can efficiently collect the light from the first light source 41 that has fallen outside the rear end 47a of the first reflector 47. Furthermore, since the inclined surface 51 a is close to the rear end 47 a of the first reflector 47, the inclined surface 51 a can efficiently collect the light of the first light source 41 that is out of the first reflector 47.
  • the inclined surface 51a is inclined so as to become higher toward the rear side, the inclined surface 51a suitably guides the light of the first light source 41 toward the second reflector 49 located above the inclined surface 51a. Can do.
  • the light from the first light source 41 that has been detached from the first reflector 47 is guided to the second reflector 49 using the inclined surface 51 a of the cover member 51.
  • the cover member 51 also serves as an auxiliary reflector, the structure can be further simplified.
  • first light source 41, the second light source 44, and the inclined surface 51a are arranged so as to overlap each other when viewed from the front, the height of the headlamp 11 can be kept low.
  • first reflector 47 and the second reflector 49 can be disposed close to each other when viewed from the front.
  • the first light source 41 is provided such that its optical axis P is inclined rearward in the vertical direction downward. For this reason, even if the first reflector 47 is disposed close to the first light source 41 in a front view, relatively strong light with the optical axis P as the center can be incident on the first reflector 47. Therefore, the first reflector 47 can appropriately irradiate the low beam L with a sufficient amount of light.
  • the second light source 44 is provided such that its optical axis Q is inclined rearward in the vertical direction upward. For this reason, the 2nd reflector 49 can also irradiate the high beam H of sufficient light quantity appropriately.
  • the visibility of the headlamp 11 is high, so that the presence of the motorcycle 1 can be easily recognized by a pedestrian or a driver of an oncoming vehicle. it can. Moreover, since the headlamp 11 can be reduced in size easily, the freedom degree of the position which mounts the headlamp 11, and the freedom degree of the structure which supports the headlamp 11 can be raised.
  • Example 2 Embodiment 2 of the present invention will be described below with reference to the drawings. Since the overall configuration of the motorcycle 1 of the second embodiment is substantially the same as that of the first embodiment, description thereof is omitted. Since the structure of the headlamp is different from that of the first embodiment in the second embodiment, the headlamp will be described below. In addition, about the same structure as Example 1, detailed description is abbreviate
  • FIG. 13 is a cross-sectional view of a main part of the headlamp according to the second embodiment.
  • the left side of the drawing is the front side of the headlamp 61.
  • the headlamp 61 includes a housing 63 and an outer lens 65.
  • the outer lens 65 is configured only by a transparent region that allows light to pass through (that is, the first region A described in the first embodiment). That is, the outer lens 65 does not have the second region B (scattering portion 34) as described in the first embodiment.
  • the region A3 obtained by removing the region A1 and the region A2 from the first region A can be said to be a region of the outer lens 33 that does not overlap with either the first reflector 47 or the second reflector 49 in the front view.
  • a first light source 41, a second light source 44, a first reflector 47, and a second reflector 49 are provided in the housing 63.
  • a first light source 41, a second light source 44, a first reflector 47, and a second reflector 49 are provided in the housing 63.
  • illustration of members that support the first light source 41 and the like is omitted.
  • the first light source 41 and the second light source 44 are arranged in the vertical direction with the first light source 41 as the upper side and the second light source 44 as the lower side.
  • the first light source 41 is installed such that the light emitting surface 42a faces upward.
  • the second light source 44 is installed such that the light emitting surface 45a faces downward.
  • the first reflector 47 is provided above the first light source 41.
  • the first reflector 47 is arranged such that the rear end 47 a is higher than the height position of the LED 43.
  • the first reflector 47 is focused on the position of the first light source 41 or the vicinity thereof.
  • the second reflector 49 is provided below the second light source 44.
  • the second reflector 49 is disposed such that the rear end 49 a is lower than the height position of the LED 46.
  • the second reflector 49 focuses on the position of the second light source 44 or the vicinity thereof.
  • a reflective member 67 is further provided in the housing 63.
  • the reflection member 67 is disposed behind the first light source 41 and the second light source 44 in plan view. Further, the reflecting member 67 is disposed below the first reflector 47 and above the second reflector 49. More specifically, the reflecting member 67 is disposed at a position close to the rear end 47 a of the first reflector 47. Further, the reflecting member 67 is provided so as to face the first light source 41 and the second reflector 49.
  • the reflecting member 67 itself is appropriately bent so that the direct light of the first light source 41 can be suitably guided to the second reflector 49, and is not a plane mirror.
  • the reflecting member 67 corresponds to an auxiliary reflector in the present invention.
  • the operation of the headlamp 61 according to the second embodiment will be described separately when the low beam is turned on and when the high beam is turned on. Operations similar to those of the first embodiment will be briefly described.
  • the direct light of the first light source 41 mainly travels toward the first reflector 47.
  • the first reflector 47 reflects the light from the first light source 41. Thereby, the first reflector 47 emits the low beam L.
  • the low beam L passes through the outer lens 33 and travels forward to the headlamp 61 to illuminate the front of the motorcycle 1. At this time, the first reflector 47 itself becomes bright as if illuminated.
  • the light that is off the first reflector 47 enters the reflecting member 67.
  • the reflection member 67 reflects the light from the first light source 41 toward the second reflector 49.
  • the light guided by the reflecting member 67 enters the second reflector 49.
  • the second reflector 49 reflects incident light and irradiates the auxiliary beam S forward.
  • the auxiliary beam S passes through the outer lens 33 and travels forward of the headlamp 61 to illuminate the road surface on the near side. At this time, the second reflector 49 itself becomes bright as if illuminated.
  • the light guided by the reflecting member 67 enters the second reflector 49 from a position behind the second light source (that is, near the focal point of the second reflector 49). For this reason, the auxiliary beam S irradiated by the second reflector 49 proceeds in a direction inclined downward from the high beam.
  • the auxiliary beam S is set to travel in a direction inclined further downward than the low beam L.
  • the auxiliary beam S is set so as to travel toward both the area A2 and the area A3.
  • the symbols “A2” and “A3” are omitted.
  • the second light source 44 emits light when the high beam is turned on, direct light from the second light source 44 travels toward the second reflector 49.
  • the second reflector 49 reflects the light from the second light source 44. Thereby, the 2nd reflector 49 irradiates a high beam (illustration omitted).
  • the headlamp 61 when the low beam L is turned on, the first reflector 47 itself is brightened as if illuminated, and the second reflector 49 itself is also illuminated. It becomes brighter. Therefore, the visibility of the headlamp 61 can be improved without increasing the size of the first reflector 47.
  • the first light source 41 is installed such that the light emitting surface 42a faces upward
  • the second light source 44 is installed such that the light emitting surface 45a faces downward.
  • the light of the first light source 41 is suitably guided to the second reflector 49 by including the reflecting member 67 disposed behind the first light source 41 and the second light source 44 in plan view. be able to.
  • the reflecting member 67 arranged in this way the auxiliary beam S can be easily made in a direction inclined downward from the direction of the high beam. Therefore, it is possible to prevent the auxiliary beam S from being dazzled by pedestrians and oncoming vehicles.
  • the reflecting surface of the reflecting member 67 is bent, the light from the first light source 41 can be suitably guided to the second reflector 49. Further, since the reflecting member 67 is based on an inclination that becomes higher toward the front side, the reflecting member 67 can reflect the light of the first light source 41 toward the second reflector 49 located below the reflecting member 67. .
  • Example 3 Embodiment 3 of the present invention will be described below with reference to the drawings. Since the overall configuration of the motorcycle 1 of the third embodiment is substantially the same as that of the first embodiment, the description thereof is omitted. Since the structure of the headlamp is different from that of the first embodiment in the third embodiment, the headlamp will be described below. In addition, about the same structure as Example 1, detailed description is abbreviate
  • FIG. 14 is a perspective view of the main part showing the inside of the casing of the headlamp according to the third embodiment.
  • FIG. 15 is a main part side view showing the inside of the housing of the headlamp according to the third embodiment.
  • the housing, the outer lens, and the like are not shown.
  • a half of the first reflector 47 cut at the center and a half of the second reflector 49 cut at the center are shown.
  • the left side of the drawing is the front side of the headlamp 71
  • the upper side of the drawing is the upper side of the headlamp 71
  • the direction perpendicular to the paper surface is the lateral direction of the headlamp 71.
  • the headlamp 71 includes a first light source 41, a second light source 44, a first reflector 47, and a second reflector 49.
  • the 1st light source 41 and the 2nd light source 44 are arrange
  • the first light source 41 is installed such that the light emitting surface 42a faces downward.
  • the second light source 44 is installed such that the light emitting surface 45a faces downward.
  • the first reflector 47 is disposed below the first light source 41.
  • the first reflector 47 is focused on the position of the first light source 41 or the vicinity thereof.
  • the second reflector 49 is disposed below the second light source 44.
  • the second reflector 49 is focused on the position of the second light source 44 or the vicinity thereof.
  • the headlamp 71 further includes a first reflecting member 75 and a second reflecting member 77.
  • the first reflecting member 75 is disposed behind the first light source 41 in plan view.
  • the first reflecting member 75 is disposed above the first reflector 47 and at a position close to the rear end 47 a of the first reflector 47.
  • the first reflecting member 75 is inclined so as to face both the first light source 41 and the second reflecting member 77.
  • the first reflecting member 75 is focused on the position of the first light source 41 or the vicinity thereof. Further, the first reflecting member 75 itself is a parabolic mirror. For this reason, the first reflecting member 75 can reflect the direct light of the first light source 41 and irradiate the second reflecting member 77 with substantially parallel light (hereinafter referred to as “parallel light”).
  • the first reflecting member 75 corresponds to the first auxiliary reflector in the present invention.
  • the second reflecting member 77 is disposed behind the second light source 44 in plan view.
  • the second reflecting member 77 is disposed above the second reflector 49.
  • the second reflecting member 77 is inclined so as to face both the second reflector 49 and the first reflecting member 75.
  • the second reflecting member 77 is a plane mirror.
  • the second reflecting member 77 reflects the parallel light guided by the first reflecting member 75 toward the second reflector 49.
  • the second reflecting member 77 corresponds to the second reflecting member in the present invention.
  • the operation of the headlamp 71 according to the third embodiment will be described. Since the operation when the high beam is turned on is the same as in the first and second embodiments, the description thereof is omitted. Hereinafter, only when the low beam is turned on will be described.
  • the direct light of the first light source 41 mainly travels toward the first reflector 47.
  • the first reflector 47 reflects the light from the first light source 41. Thereby, the first reflector 47 emits the low beam L. At this time, the first reflector 47 itself becomes bright as if illuminated.
  • the light that is removed from the first reflector 47 enters the first reflecting member 75.
  • the first reflecting member 75 reflects the light from the first light source 41 and irradiates the light toward the second reflecting member 77.
  • the second reflecting member 77 reflects the light guided by the first reflecting member 75 and irradiates the light toward the second reflector 49.
  • the second reflector 49 reflects the light guided by the second reflecting member 77 and irradiates the auxiliary beam S forward. At this time, the second reflector 49 itself becomes bright as if illuminated.
  • FIG. 15 further illustrates an auxiliary beam S that travels in a direction inclined downward from the low beam L.
  • the headlamp 71 when the low beam L is turned on, the first reflector 47 itself becomes bright as if illuminated.
  • the second reflector 49 also becomes bright as if illuminated by the light guided by the first reflecting member 75 and the second reflecting member 77. Therefore, the visibility of the headlamp 71 can be improved.
  • both the first light source 41 and the second light source 44 are installed such that their light emitting surfaces 42a and 45a face downward.
  • the light of the first light source 41 that is out of the first reflector 47 is suitable for the second reflector 49 by the auxiliary reflector that includes the first reflecting member 75 and the second reflecting member 77. Can lead to.
  • the first reflecting member 75 is a parabolic mirror, when the light from the first light source 41 is reflected, parallel light can be irradiated. Therefore, the first reflecting member 75 can suitably guide the light of the first light source 41 that has been removed from the first reflector 47 to the second reflecting member 77.
  • the present invention is not limited to the above embodiment, and can be modified as follows.
  • the light recovery member is configured to include the member (51a, 67, 75, 77) that reflects light, but is not limited thereto.
  • a light recovery member that includes a light guide may be used instead of a member that reflects light.
  • the light recovery member may be a light guide that receives and propagates the light from the first light source 41 that is removed from the first reflector 47 and emits the light toward the second reflector 49.
  • the light guide include an optical fiber, an acrylic plate, or an acrylic rod. According to such a modification, the light recovery member can be flexibly installed regardless of the arrangement of the first light source 41, the second reflector 49, and the like.
  • the first reflector 47 and the second reflector 49 are configured by the plurality of divided reflection surfaces 47b / 49b, but the present invention is not limited thereto.
  • the first reflector 47 and the second reflector 49 may be changed to parabolic mirrors.
  • Example 1 although the scattering part 34 of the outer lens 33 was comprised by the convex part 34a, it is not restricted to this.
  • the auxiliary beam S travels in a direction inclined downward from the low beam L.
  • the direction of the auxiliary beam S may be changed to the same direction as the low beam L. According to this, the range LA where the low beam L illuminates the road surface G can be illuminated more brightly by the auxiliary beam S.
  • the direction of the auxiliary beam S may be changed to a direction inclined downward from the high beam H or a direction inclined downward from the horizontal direction. According to this, it can prevent a pedestrian etc. from being dazzled.
  • the auxiliary beam S is set to travel toward the second region B.
  • the present invention is not limited to this. That is, if the auxiliary beam S is set to travel forward (that is, the outer lens 33), the auxiliary beam S can be used effectively.
  • the auxiliary beam S may be changed to be incident on both the first area A and the second area B of the outer lens 33.
  • the auxiliary beam S incident on the first area A passes through the outer lens 33 and illuminates the front of the headlamp 11.
  • the auxiliary beam S incident on the second region B causes the second region B to emit light.
  • both the visibility and visibility of the headlamp 11 can be improved.
  • the auxiliary beam S may be changed so as to enter only the first region A of the outer lens 33. According to this modification, the visibility of the headlamp 11 can be improved.
  • the auxiliary beam S may be changed so as to be incident on any one or two of the above-described region A1, region A2, and region (A3, B). Or you may change so that the auxiliary beam S may inject into the area
  • the auxiliary beam S may be changed to be incident on both the region A1 and the region (A3, B), or may be changed so as to be incident on both the region A2 and the region (A3, B). . According to these modified examples, the visibility and / or visibility of the headlamp 11 can be improved.
  • the auxiliary beam S may be changed so as to be incident on any one or two of the above-described region A1, region A2, and region B. Or you may change so that the auxiliary beam S may inject into the area
  • the auxiliary beam S may be changed to be incident on both the region A1 and the region B, or may be changed so as to be incident on both the region A2 and the region B. According to these modified examples, the visibility and / or visibility of the headlamp 11 can be improved.
  • FIG. 16 is a schematic diagram for explaining the operation of the headlamp when the low beam is turned on in the headlamp 81 according to the modification.
  • the auxiliary beam S is set so as to travel toward both the area A2 and the area B.
  • the auxiliary beam S that has entered the area A2 passes through the area A2 and travels forward of the headlamp 81 to illuminate the front of the motorcycle 1.
  • the auxiliary beam S incident on the second region B causes the second region B to emit light.
  • a part of the auxiliary beam S incident on the second region B passes through the outer lens 33 and proceeds in front of the headlamp 81 to illuminate the road surface on the near side.
  • the visibility and visibility of the headlamp 81 can be improved.
  • the auxiliary beam S may be changed so as to be incident on any one or two of the regions A1, A2, and A3. Or you may change so that the auxiliary beam S may inject into the area
  • the auxiliary beam S may be changed so as to enter both the regions A1 and A3, or may be changed so as to enter both the regions A2 and A3.
  • the front of the headlamp 61 can be illuminated more brightly, so that the visibility of the headlamp 61 can be improved.
  • Example 1 a part of the auxiliary beam S incident on the region B (scattering portion 34) passes through the outer lens 33, illuminates the front (range SA), and improves the visibility. Not limited to this. That is, the auxiliary beam S incident on the region B (scattering portion 34) does not have to illuminate the road surface ahead and does not need to improve visibility. In other words, the scattering unit 34 may scatter all of the incident auxiliary beam S.
  • the engine 5 is provided as a power generation device, but is not limited thereto. You may change so that an electric motor (motor) may be provided as a motive power generator. In this case, the engine 5 may be omitted, or both the engine 5 and the electric motor may be provided.
  • an electric motor motor
  • the engine 5 may be omitted, or both the engine 5 and the electric motor may be provided.
  • the motorcycle 1 including the single front wheel 17 and the single rear wheel 23 is illustrated, but the present invention is not limited thereto.
  • it may be a straddle-type vehicle in which one of the front wheels or the rear wheels is two wheels, or a straddle-type vehicle in which both the front wheels and the rear wheels are two wheels.
  • each structure is further changed suitably, such as replacing or combining with the structure of another modification example. Also good.
  • the visibility is high, so it can be applied to various applications.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

A headlight (11) comprises: a first light source (41) comprising an LED; a first reflector (47) of which the focus is located adjacent to the location of the first light source (41) and can reflect light from the first light source (41) to emit a low beam (L); a second light source (44) which comprises an LED; a second reflector (49) of which the focus is located adjacent to the location of the second light source (44) and can reflect light from the second light source (44) to emit a high beam; and an inclined surface (51a) which can guide light that is emitted from the first light source (41) and is deviated from the first reflector (47) to the second reflector (49). Upon the emission of the low beam (L) by the first reflector (47), the inclined surface (51a) guides direct light that is emitted from the first light source (41) and is deviated from the first reflector (47) to the second reflector (49). In this manner, it becomes possible to improve the conspicuousness of the headlight (11) without increasing the size of the first reflector (47).

Description

前照灯及びこれを備えた鞍乗型車両Headlamp and straddle-type vehicle equipped with the same
　本発明は、前照灯及びこれを備えた鞍乗型車両に関する。 The present invention relates to a headlamp and a straddle-type vehicle equipped with the same.
　従来、車両に搭載される前照灯の光源は、ハロゲンランプやキセノンランプ等のバルブで構成されている。バルブは、全方向に向けて発光する。よって、リフレクタはバルブの周囲全体を覆うような形状となる。 Conventionally, a light source of a headlamp mounted on a vehicle is composed of a bulb such as a halogen lamp or a xenon lamp. The bulb emits light in all directions. Therefore, the reflector is shaped to cover the entire periphery of the bulb.
　近年、バルブに代えてＬＥＤ（発光ダイオード：Light Emitting Diode）で光源を構成することが試みられている。このような光源は、具体的には、ＬＥＤと、このＬＥＤが設けられている基板とを備えている。ＬＥＤは、基板の一方面側のみに向けて発光し、基板の他方面側（裏面側）に向けて発光しない。よって、リフレクタは、基板の一方面側のみを覆うような形状で足りる。 In recent years, an attempt has been made to construct a light source with an LED (Light Emitting Diode) instead of a bulb. Specifically, such a light source includes an LED and a substrate on which the LED is provided. The LED emits light toward only one side of the substrate and does not emit light toward the other side (back side) of the substrate. Therefore, it is sufficient for the reflector to have a shape that covers only one side of the substrate.
　また、ＬＥＤは、一方向を中心に強い光を照射する傾向がある。そこで、この一方向を含むようなリフレクタであれば、十分な光量の光を前方へ照射させることができる。よって、リフレクタの面積をさらに小さくすることができる。 Also, LEDs tend to emit strong light around one direction. Therefore, if the reflector includes this one direction, a sufficient amount of light can be irradiated forward. Therefore, the area of the reflector can be further reduced.
　以上のように、ＬＥＤを有する光源によれば、バルブを有する光源の場合に比べてリフレクタを小さくすることができ、前照灯を小型化することができる。 As described above, according to the light source having the LED, the reflector can be made smaller than in the case of the light source having the bulb, and the headlamp can be downsized.
特開２００９－４８８９８号公報JP 2009-48898 A
　このような構成を有する従来例の場合には、次のような問題がある。
　すなわち、ロービームを照射している前照灯を外部からみたとき、前照灯自体が明るく見える。これは、リフレクタが光源の光の一部を散乱するため、リフレクタ自体が照らされたように明るくなるからである。このため、前照灯がロービームを照射しているとき、歩行者または対向車の運転手／乗員等は、眩惑することなく、明るくなった領域（すなわち、リフレクタの領域）を視認することができる。そして、歩行者等はそれが前照灯であると気付き、車両の存在を認識できる。しかしながら、前照灯が小型化され、リフレクタの面積が小さくなると、ロービームの点灯時に明るくなる領域が小さくなる。このため、歩行者等はその領域を視認しづらくなる。また、このような前照灯を見慣れていない歩行者等にとっては、それが前照灯であると直ちに気付きにくくなることもある。なお、本明細書では、歩行者等の第三者にとって前照灯１１が視認され易いかどうかを「被視認性」という。また、車両の搭乗者にとって前照灯１１の前方を視認し易いかどうかを「視認性」という。 The conventional example having such a configuration has the following problems.
That is, when the headlamp that irradiates the low beam is viewed from the outside, the headlamp itself looks bright. This is because the reflector scatters a part of the light of the light source, so that the reflector itself becomes bright as if illuminated. For this reason, when the headlamp is irradiating the low beam, the driver / occupant of the pedestrian or the oncoming vehicle can visually recognize the brightened area (that is, the reflector area) without being dazzled. . And a pedestrian etc. can recognize that it is a headlamp and can recognize presence of a vehicle. However, if the headlamp is miniaturized and the area of the reflector is reduced, the area that becomes brighter when the low beam is turned on becomes smaller. For this reason, it is difficult for a pedestrian or the like to visually recognize the area. Moreover, it may be difficult for a pedestrian or the like who is unfamiliar with such a headlamp to immediately notice that it is a headlamp. In the present specification, whether or not the headlamp 11 is easily visible to a third party such as a pedestrian is referred to as “visibility”. In addition, whether or not a vehicle occupant can easily visually recognize the front of the headlamp 11 is referred to as “visibility”.
　本発明は、このような事情に鑑みてなされたものであって、小型化しつつ、被視認性を向上させることができる前照灯およびこれを備えた鞍乗型車両を提供することを目的とする。 The present invention has been made in view of such circumstances, and an object of the present invention is to provide a headlamp capable of improving visibility while reducing size and a straddle-type vehicle including the headlamp. To do.
　本発明は、このような目的を達成するために、次のような構成をとる。
　すなわち、本発明は、ロービームおよびハイビームを照射可能な前照灯であって、ＬＥＤで構成される第１光源と、前記第１光源の位置近傍を焦点とし、前記第１光源の光を反射してロービームを照射するための第１リフレクタと、ＬＥＤで構成される第２光源と、前記第２光源の位置近傍を焦点とし、前記第２光源の光を反射してハイビームを照射するための第２リフレクタと、第１リフレクタから外れた前記第１光源の光を前記第２リフレクタに導く光回収部材と、を備えている前照灯である。 In order to achieve such an object, the present invention has the following configuration.
That is, the present invention is a headlamp capable of irradiating a low beam and a high beam, and focuses on a first light source composed of LEDs and the vicinity of the position of the first light source, and reflects the light of the first light source. A first reflector for irradiating a low beam, a second light source comprising an LED, and a second light source for irradiating a high beam by reflecting the light from the second light source with a focus in the vicinity of the position of the second light source. 2 is a headlamp including a reflector and a light recovery member that guides the light of the first light source that is detached from the first reflector to the second reflector.
　［作用・効果］第１光源のＬＥＤが発光すると、第１光源の直接光は、主に第１リフレクタに向かって進む。第１リフレクタは、第１光源の直接光を前方に向けて反射する。反射された光は、ロービームの配光パターンで前方を照らす。すなわち、第１リフレクタは、ロービームを照射する。この際、第１リフレクタ自体は、第１光源の直接光によって照らされたように明るくなる。 [Operation / Effect] When the LED of the first light source emits light, the direct light of the first light source mainly travels toward the first reflector. The first reflector reflects the direct light of the first light source toward the front. The reflected light illuminates the front with a low beam light distribution pattern. That is, the first reflector emits a low beam. At this time, the first reflector itself becomes bright as if illuminated by the direct light of the first light source.
　また、第１光源の直接光の一部は、第１リフレクタに向って進まず、第１リフレクタから外れた方向に進む。光回収部材は、このような光を第２リフレクタに導く。よって、第２リフレクタ自体も、光回収部材に導かれた光によって照らされたように明るくなる。 Also, part of the direct light from the first light source does not travel toward the first reflector, but travels away from the first reflector. The light recovery member guides such light to the second reflector. Therefore, the second reflector itself is also brightened as illuminated by the light guided to the light recovery member.
　他方、第２光源のＬＥＤが発光すると、第２光源の光は、第２リフレクタに向かって進む。第２リフレクタは、第２光源の直接光を前方に向けて反射する。反射された光は、ハイビームの配光パターンで前方を照らす。すなわち、第２リフレクタはハイビームを照射する。 On the other hand, when the LED of the second light source emits light, the light of the second light source travels toward the second reflector. The second reflector reflects the direct light of the second light source toward the front. The reflected light illuminates the front with a high beam light distribution pattern. That is, the second reflector emits a high beam.
　上述したように、第１光源が点灯すると、前照灯はロービームを照射する。この際、第１リフレクタのみならず、第２リフレクタも明るくなる。このように、明るくなる領域が比較的に広いので、歩行者や対向車の乗員等の第三者は前照灯を容易に視認することができる。また、第１リフレクタを大きくすることなく、明るく見える前照灯の領域を拡大することができるので、第１リフレクタおよび前照灯の小型化を容易に図ることができる。以上のとおり、本発明によれば、前照灯を小型化しつつ、前照灯の被視認性を向上させることができる。 As described above, when the first light source is turned on, the headlamp emits a low beam. At this time, not only the first reflector but also the second reflector is brightened. In this way, since the brightened area is relatively wide, a third person such as a pedestrian or an oncoming vehicle can easily see the headlamp. Moreover, since the area | region of the headlamp which looks bright can be expanded, without enlarging a 1st reflector, size reduction of a 1st reflector and a headlamp can be achieved easily. As described above, according to the present invention, it is possible to improve the visibility of the headlamp while reducing the size of the headlamp.
　なお、「前記第１光源／第２光源の位置近傍を焦点とし、」とは、その焦点の位置、またはその近傍に第１光源／第２光源が位置するように、第１リフレクタ／第２リフレクタが配置されることを意味する。ここで、「近傍」は、第１リフレクタの場合、ロービームの配光パターンを支障なく実質的に形成できるような第１光源の位置を含む意味である。また、第２リフレクタの場合、「近傍」とは、ハイビームの配光パターンを支障なく実質的に形成できるような第２光源の位置を含む意味である。 Note that “the vicinity of the position of the first light source / second light source is a focal point” means that the first reflector / second light source is positioned so that the first light source / second light source is located at or near the position of the focus. It means that a reflector is arranged. Here, in the case of the first reflector, the “nearby” means that the position of the first light source that can substantially form a low beam light distribution pattern without hindrance. Further, in the case of the second reflector, “near” means including the position of the second light source that can substantially form a high beam light distribution pattern without any trouble.
　上述した発明において、前記第２リフレクタは、前記光回収部材によって導かれる光を、前方に進むにつれて下方に傾斜する方向に反射することが好ましい。第１光源が点灯する際、第２リフレクタは水平よりも下方に傾斜した方向に向けて光を照射する。このため、ロービームを照射するときに前照灯がまぶしく見えることを防ぐことができる。 In the above-described invention, it is preferable that the second reflector reflects light guided by the light recovery member in a direction inclined downward as it travels forward. When the first light source is turned on, the second reflector irradiates light in a direction inclined downward from the horizontal. For this reason, it is possible to prevent the headlamp from being dazzled when the low beam is irradiated.
　上述した発明において、前記第２リフレクタは、前記光回収部材によって導かれる光を、前記ロービームの方向に比べて下方に傾斜する方向に反射することが好ましい。これによれば、第２リフレクタが照射した光は、ロービームよりも手前側の範囲を照らす。換言すれば、第２リフレクタが照射した光は、ロービームに比べて前照灯により近い路面の範囲も照らすことができる。よって、第１光源が点灯しているとき、一層広い路面の範囲を照らすことができる。 In the above-described invention, it is preferable that the second reflector reflects the light guided by the light recovery member in a direction inclined downward relative to the direction of the low beam. According to this, the light irradiated by the second reflector illuminates a range in front of the low beam. In other words, the light irradiated by the second reflector can illuminate the range of the road surface closer to the headlamp than the low beam. Therefore, when the first light source is lit, a wider road surface area can be illuminated.
　上述した発明において、前記光回収部材は、平面視で前記第１光源の後方に配置されていることが好ましい。このような配置によれば、第１光源に近い位置に光回収部材を設けても、ロービームの照射を光回収部材が妨げることを容易に回避することができる。よって、光回収部材が平面視で第１光源の前方に配置される場合に比べて、光回収部材を第１光源に近い位置に適切に設けることができる。その結果、光回収部材は、第１リフレクタの後端の外側にはずれた第１光源の光を、効率よく回収することができる。 In the above-described invention, it is preferable that the light recovery member is disposed behind the first light source in a plan view. According to such an arrangement, even if the light recovery member is provided at a position close to the first light source, it can be easily avoided that the light recovery member prevents the low beam irradiation. Therefore, compared with the case where the light recovery member is disposed in front of the first light source in plan view, the light recovery member can be appropriately provided at a position close to the first light source. As a result, the light recovery member can efficiently recover the light from the first light source that has shifted to the outside of the rear end of the first reflector.
　上述した発明において、前記第２光源は、その光軸が上方を向くように設けられ、前記第２リフレクタは、前記第２光源の上方に配置され、前記光回収部材は、平面視で前記第２光源の前方に配置されていることが好ましい。第２光源が点灯すると、第２光源の直接光は上方に進む。第２リフレクタは、この光を反射し、ハイビームを照射する。他方、第１光源が点灯すると、光回収部材は、第１光源の光を第２リフレクタに導く。ここで、光回収部材は、平面視で第２光源よりも前方に配置されているため、光回収部材によって導かれる光は、第２リフレクタの焦点近傍に配置される第２光源よりも前方の位置から第２リフレクタに入射する。このため、第２リフレクタは、光回収部材によって導かれる光を反射して、ハイビームより下方に傾斜した方向に向けて光を照射することができる。 In the above-described invention, the second light source is provided so that an optical axis thereof is directed upward, the second reflector is disposed above the second light source, and the light recovery member is the first light source in a plan view. It is preferable to arrange in front of the two light sources. When the second light source is turned on, the direct light from the second light source travels upward. The second reflector reflects this light and emits a high beam. On the other hand, when the first light source is turned on, the light recovery member guides the light from the first light source to the second reflector. Here, since the light recovery member is disposed in front of the second light source in plan view, the light guided by the light recovery member is in front of the second light source disposed in the vicinity of the focal point of the second reflector. The light enters the second reflector from the position. Therefore, the second reflector can reflect the light guided by the light recovery member and irradiate the light in a direction inclined downward from the high beam.
　上述した発明において、前記第１光源は、その光軸が下方を向くように、かつ、平面視で前記第２光源の前方に配置され、前記第１リフレクタは前記第１光源の下方に配置され、前記光回収部材は、平面視で前記第１光源と前記第２光源の間に配置されていることが好ましい。この配置によれば、第１光源、光回収部材および第２光源は、平面視で前側からこの順に配置される。すなわち、光回収部材は第１光源の後方に位置する。よって、光回収部材は、第１リフレクタから外れた第１光源の光を効率良く回収することができる。また、第２光源は第１光源の後方にあるので、第１リフレクタに比べて大きな第２リフレクタを好適に設置することができる。 In the above-described invention, the first light source is disposed in front of the second light source in a plan view so that the optical axis thereof is directed downward, and the first reflector is disposed below the first light source. The light recovery member is preferably disposed between the first light source and the second light source in plan view. According to this arrangement, the first light source, the light recovery member, and the second light source are arranged in this order from the front side in a plan view. That is, the light recovery member is located behind the first light source. Therefore, the light recovery member can efficiently recover the light of the first light source that has come off the first reflector. Further, since the second light source is located behind the first light source, a second reflector that is larger than the first reflector can be suitably installed.
　上述した発明において、前記第１光源、前記第２光源、及び、前記光回収部材は、正面視で互いに重なるように配置されていることが好ましい。換言すれば、前記第１光源、前記第２光源、及び、前記光回収部材は、前後方向に一列に並ぶように配置されている。このような配置によれば、前照灯の高さを低く抑えることができる。また、正面視において第１リフレクタと第２リフレクタとを互いに近接させることができる。 In the above-described invention, it is preferable that the first light source, the second light source, and the light recovery member are arranged so as to overlap each other in a front view. In other words, the first light source, the second light source, and the light recovery member are arranged in a line in the front-rear direction. According to such an arrangement, the height of the headlamp can be kept low. In addition, the first reflector and the second reflector can be brought close to each other when viewed from the front.
　上述した発明において、前記第１光源は、その光軸が垂直方向に対して後方に傾斜するように設けられ、前記第２光源は、その光軸が垂直方向に対して後方に傾斜するように設けられていることが好ましい。これによれば、第１、第２リフレクタはそれぞれ、比較的小さい面積で効率良くロービームまたはハイビームを照射することができる。よって、第１、第２リフレクタを容易に小型化することができる。 In the above-described invention, the first light source is provided such that its optical axis is inclined backward with respect to the vertical direction, and the second light source is provided so that its optical axis is inclined backward with respect to the vertical direction. It is preferable to be provided. According to this, each of the first and second reflectors can efficiently irradiate a low beam or a high beam with a relatively small area. Therefore, the first and second reflectors can be easily downsized.
　上述した発明において、前記光回収部材は、前記第１リフレクタから外れた前記第１光源の光を前記第２リフレクタに向けて反射する補助リフレクタであることが好ましい。これによれば、光回収部材を簡易な構造で実現することができる。 In the above-described invention, it is preferable that the light recovery member is an auxiliary reflector that reflects the light of the first light source that has been detached from the first reflector toward the second reflector. According to this, the light recovery member can be realized with a simple structure.
　上述した発明において、前記補助リフレクタは、後側に向かって高くなるように傾斜している反射面を備えることが好ましい。補助リフレクタは、その上方に配置される第２リフレクタに向けて、第１光源の光を好適に反射させることができる。 In the above-described invention, it is preferable that the auxiliary reflector includes a reflecting surface that is inclined so as to become higher toward the rear side. The auxiliary reflector can favorably reflect the light of the first light source toward the second reflector disposed above the auxiliary reflector.
　上述した発明において、前記補助リフレクタは、前記第１リフレクタの後端に近接するように設けられていることが好ましい。補助リフレクタは、第１リフレクタの後端から第１リフレクタの外側に外れた第１光源の光を、効率良く回収することができる。 In the above-described invention, it is preferable that the auxiliary reflector is provided so as to be close to a rear end of the first reflector. The auxiliary reflector can efficiently collect the light from the first light source that has fallen outside the first reflector from the rear end of the first reflector.
　上述した発明において、さらに、前記第１光源を支持する支持部材と、前記支持部材を覆うように設けられ、光を反射するカバー部材と、を備え、前記補助リフレクタは、前記カバー部材に形成されていることが好ましい。本来、支持部材を覆うカバー部材が補助リフレクタを兼ねているので、構造を一層簡易にすることができる。 The above-described invention further includes a support member that supports the first light source, and a cover member that covers the support member and reflects light, and the auxiliary reflector is formed on the cover member. It is preferable. Since the cover member that covers the support member also serves as the auxiliary reflector, the structure can be further simplified.
　上述した発明において、前記第１リフレクタおよび前記第２リフレクタの前方の開口を覆うアウターレンズを、さらに備え、前記第２リフレクタは、前記光回収部材によって導かれる光を前方に向けて反射することが好ましい。これによれば、光回収部材によって導かれた光は、第２リフレクタで反射し、アウターレンズに向かって進む。したがって、光回収部材によって導かれた光を一層有効に利用することができる。よって、被視認性および／または視認性の少なくともいずれかを一層向上させることができる。 The above-described invention may further include an outer lens that covers openings in front of the first reflector and the second reflector, and the second reflector reflects light guided by the light recovery member toward the front. preferable. According to this, the light guided by the light recovery member is reflected by the second reflector and travels toward the outer lens. Therefore, the light guided by the light recovery member can be used more effectively. Therefore, at least one of visibility and / or visibility can be further improved.
　上述した発明において、前記アウターレンズは、正面視で前記第１リフレクタおよび前記第２リフレクタと重ならない前記アウターレンズの領域に形成され、光を散乱させる散乱部を有することが好ましい。第１光源が点灯すると、第２リフレクタは散乱部に光を照射する。これにより、散乱部全体を面発光させることができる。このように、散乱部を備えることで、明るくなる領域を効果的に大きくすることができる。よって、前照灯の被視認性を効果的に向上させることができる。なお、散乱部が形成される範囲は、正面視で前記第１リフレクタおよび前記第２リフレクタと重ならない前記アウターレンズの領域の全部であってもよいし、その一部であってもよい。 In the above-described invention, it is preferable that the outer lens has a scattering portion that is formed in a region of the outer lens that does not overlap the first reflector and the second reflector in a front view and scatters light. When the first light source is turned on, the second reflector irradiates the scattering part with light. Thereby, the whole scattering part can be surface-emitted. Thus, by providing a scattering part, the area | region which becomes bright can be enlarged effectively. Therefore, the visibility of the headlamp can be effectively improved. Note that the range in which the scattering portion is formed may be the entire region of the outer lens that does not overlap the first reflector and the second reflector in a front view, or a part thereof.
　また、本発明は、上述した前照灯を備える鞍乗型車両である。 Further, the present invention is a straddle-type vehicle provided with the above-described headlamp.
　［作用・効果］本発明に係る鞍乗型車両によれば、前照灯の被視認性が高いので、歩行者等の第三者に対して鞍乗型車両の存在を認識させることができる。 [Operation / Effect] According to the straddle-type vehicle according to the present invention, the visibility of the headlamp is high, so that a third person such as a pedestrian can recognize the presence of the straddle-type vehicle. .
　ここで、「鞍乗型車両」は、搭乗者が鞍にまたがった状態で乗車可能な車両のほかに、足をそろえて乗車可能なスクーター型の車両も含む。 Here, the “saddle-type vehicle” includes a scooter type vehicle in which a rider can ride with his / her feet in addition to a vehicle in which the passenger can ride in a state where the rider straddles the saddle.
　なお、本明細書は、次のような前照灯に係る発明も開示している。 In addition, this specification also discloses the invention concerning the following headlamps.
　（１）ロービームおよびハイビームを照射可能な前照灯であって、ＬＥＤを有する第１光源と、前記第１光源に対向するように配置され、第１光源の光を反射してロービームを照射するための第１リフレクタと、ＬＥＤを有する第２光源と、前記第２光源に対向するように配置され、前記第２光源の光を反射してハイビームを照射するための第２リフレクタと、前記第１リフレクタから外れた前記第１光源の光を前記第２リフレクタに導く光回収部材と、を備えている前照灯。 (1) A headlamp capable of irradiating a low beam and a high beam, which is disposed so as to face a first light source having an LED and the first light source, and reflects the light of the first light source to irradiate the low beam. A second reflector for irradiating a high beam by reflecting the light of the second light source, the second reflector arranged to face the second light source, and the second reflector, And a light recovery member that guides the light of the first light source that is detached from one reflector to the second reflector.
　前記（１）に記載の発明によれば、第１光源が発光すると、第１光源の直接光は、主に第１リフレクタに向かって進む。第１リフレクタは、第１光源の直接光を前方に向けて反射し、ロービームを照射する。この際、第１リフレクタは、第１光源の直接光によって照らされたように明るくなる。 According to the invention described in (1) above, when the first light source emits light, the direct light of the first light source mainly travels toward the first reflector. The first reflector reflects the direct light of the first light source forward and irradiates the low beam. At this time, the first reflector becomes bright as if illuminated by the direct light of the first light source.
　また、第１光源の直接光の一部は、第１リフレクタから外れた方向に進み、光回収部材に入射する。光回収部材は、このような光を第２リフレクタに導く。よって、第２リフレクタも、光回収部材に導かれた光によって照らされたように明るくなる。 Also, part of the direct light from the first light source travels away from the first reflector and enters the light recovery member. The light recovery member guides such light to the second reflector. Therefore, the second reflector also becomes bright as if illuminated by the light guided to the light recovery member.
　このように、前照灯がロービームを照射しているとき、第１リフレクタのみならず、第２リフレクタも明るくなる。この結果、前照灯を外側からみたとき、第１リフレクタおよび第２リフレクタの両方の領域が明るく見える。このため、第１リフレクタをＬＥＤに対応した比較的小さい面積に抑制しつつ、前照灯の被視認性を向上させることができる。 Thus, when the headlamp is radiating a low beam, not only the first reflector but also the second reflector is brightened. As a result, when the headlamp is viewed from the outside, both regions of the first reflector and the second reflector appear bright. For this reason, the visibility of the headlamp can be improved while suppressing the first reflector to a relatively small area corresponding to the LED.
　（２）上述した発明に係る前照灯において、前記第１リフレクタは、放物面鏡である前照灯。 (2) In the headlamp according to the invention described above, the first reflector is a parabolic mirror.
　（３）上述した発明に係る前照灯において、前記第２リフレクタは、放物面鏡である前照灯。 (3) The headlamp according to the invention described above, wherein the second reflector is a parabolic mirror.
　（４）上述した発明に係る前照灯において、前記第１リフレクタは、複数に分割された反射面によって構成されている前照灯。 (4) In the headlamp according to the above-described invention, the first reflector is configured by a reflective surface divided into a plurality of parts.
　（５）上述した発明に係る前照灯において、前記第２リフレクタは、複数に分割された反射面によって構成されている前照灯。 (5) In the headlamp according to the above-described invention, the second reflector is configured by a reflecting surface divided into a plurality of parts.
　前記（２）乃至（５）に記載の発明によれば、第１リフレクタはロービームを好適に照射することができる。また、第２リフレクタはハイビームを好適に照射することができる。 According to the inventions described in (2) to (5) above, the first reflector can suitably irradiate a low beam. Moreover, the second reflector can irradiate a high beam suitably.
　（６）上述した発明に係る前照灯において、前記第２光源は、その光軸が下方を向くように設けられ、前記第２リフレクタは、前記第２光源の下方に配置され、前記光回収部材は、平面視で前記第２光源の後方に配置されている前照灯。 (6) In the headlamp according to the above-described invention, the second light source is provided so that an optical axis thereof is directed downward, and the second reflector is disposed below the second light source, and the light recovery is performed. The member is a headlamp disposed behind the second light source in plan view.
　前記（６）に記載の発明によれば、第２光源が点灯すると、第２光源の直接光は下方に進む。第２リフレクタは、この光を反射し、ハイビームを照射する。他方、第１光源が点灯すると、光回収部材は、第１リフレクタから外れた第１光源の光を第２リフレクタに導く。ここで、光回収部材は、平面視で第２光源よりも後方に配置されているため、光回収部材によって導かれる光は、第２リフレクタの焦点よりも後方の位置から第２リフレクタに入射する。このため、第２リフレクタは、光回収部材によって導かれる光を反射し、ハイビームより下方に傾斜した方向に向けて光を照射することができる。 According to the invention described in (6) above, when the second light source is turned on, the direct light from the second light source travels downward. The second reflector reflects this light and emits a high beam. On the other hand, when the first light source is turned on, the light recovery member guides the light of the first light source that has been removed from the first reflector to the second reflector. Here, since the light recovery member is disposed behind the second light source in plan view, the light guided by the light recovery member enters the second reflector from a position behind the focal point of the second reflector. . For this reason, the second reflector reflects the light guided by the light recovery member, and can irradiate the light in a direction inclined downward from the high beam.
　（７）前記（６）に記載の前照灯において、前記第１光源は、その光軸が上方を向くように、かつ、正面視で前記第２光源の上方に配置され、前記第１リフレクタは前記第１光源の上方に配置され、前記光回収部材は、平面視で前記第１光源の後方に配置されている前照灯。 (7) In the headlamp according to (6), the first light source is disposed so that an optical axis thereof faces upward and above the second light source in a front view, and the first reflector Is disposed above the first light source, and the light recovery member is disposed behind the first light source in plan view.
　前記（７）に記載の発明によれば、第１光源は第２光源の上方に配置され、第１リフレクタは第１光源の上方に配置されているので、第１リフレクタは第２リフレクタの上方に位置している。また、光回収部材は第１光源の後方に配置されているので、第１リフレクタから外れた第１光源の光を効率良く回収することができる。 According to the invention described in (7) above, since the first light source is disposed above the second light source and the first reflector is disposed above the first light source, the first reflector is above the second reflector. Is located. Moreover, since the light recovery member is disposed behind the first light source, the light of the first light source that is detached from the first reflector can be efficiently recovered.
　（８）前記（６）または前記（７）に記載の前照灯であって、前記補助リフレクタは、前側に向かって高くなるように傾斜している反射面を有する前照灯。 (8) The headlamp according to (6) or (7), wherein the auxiliary reflector has a reflecting surface that is inclined so as to become higher toward the front side.
　前記（８）に記載の発明によれば、補助リフレクタは、その下方に配置される第２リフレクタに向けて、第１光源の光を反射させることができる。 According to the invention described in (8), the auxiliary reflector can reflect the light of the first light source toward the second reflector disposed below the auxiliary reflector.
　（９）上述した発明に係る前照灯であって、前記第１光源と前記第２光源とは、横方向に並んで配置され、前記第１光源は、その光軸が下方を向くように配置され、前記第２光源は、その光軸が下方を向くように配置され、前記第１リフレクタおよび前記第２リフレクタはそれぞれ、正面視で前記第１光源及び前記第２光源の下方に並んで配置され、前記補助リフレクタは、平面視で前記第１光源の後方に配置され、前記第１リフレクタから外れた前記第１光源の光を反射させる第１補助リフレクタと、平面視で前記第２光源の後方に配置され、前記第１補助リフレクタによって反射された光を前記第２リフレクタに向けて反射する第２補助リフレクタと、を備えている前照灯。 (9) The headlamp according to the above-described invention, wherein the first light source and the second light source are arranged side by side so that the optical axis of the first light source faces downward. The second light source is disposed such that an optical axis thereof is directed downward, and the first reflector and the second reflector are respectively arranged below the first light source and the second light source in a front view. The auxiliary reflector is disposed behind the first light source in a plan view, and reflects the light of the first light source that is off the first reflector, and the second light source in a plan view. And a second auxiliary reflector that is arranged behind and reflects light reflected by the first auxiliary reflector toward the second reflector.
　前記（９）に記載の発明によれば、第１リフレクタと第２リフレクタは正面視で横方向に並ぶように配置されている。このような配置であっても、第１補助リフレクタおよび第２補助リフレクタを含んで構成される補助リフレクタによれば、第１リフレクタから外れた第１光源の光を第２リフレクタに好適に導くことができる。 According to the invention described in (9), the first reflector and the second reflector are arranged so as to be arranged in the lateral direction in a front view. Even with such an arrangement, according to the auxiliary reflector configured to include the first auxiliary reflector and the second auxiliary reflector, the light of the first light source that is out of the first reflector is preferably guided to the second reflector. Can do.
　（１０）前記（９）に記載の前照灯において、前記第１補助リフレクタは、前記第１光源の位置近傍を焦点とする放物面鏡である前照灯。 (10) The headlamp according to (9), wherein the first auxiliary reflector is a parabolic mirror focusing on the vicinity of the position of the first light source.
　前記（１０）に記載の発明によれば、第１補助リフレクタは、第１リフレクタから外れた第１光源の光を反射して、第２補助リフレクタに向けて略平行な光を照射することができる。このように、第１補助リフレクタは、第１リフレクタから外れた第１光源の光を適切に第２補助リフレクタに導くことができる。 According to the invention described in (10) above, the first auxiliary reflector reflects the light of the first light source that is out of the first reflector, and irradiates the substantially parallel light toward the second auxiliary reflector. it can. Thus, the 1st auxiliary reflector can guide the light of the 1st light source which removed from the 1st reflector to the 2nd auxiliary reflector appropriately.
　（１１）上述した発明に係る前照灯において、前記光回収部材は、第１リフレクタから外れた第１光源の光を受光して伝搬し、前記第２リフレクタに向けて放射する導光体である前照灯。 (11) In the headlamp according to the above-described invention, the light recovery member is a light guide that receives and propagates light from the first light source that is detached from the first reflector, and radiates the light toward the second reflector. There is a headlight.
　前記（１１）に記載の発明によれば、光回収部材は導光体であるので、任意の位置に光を伝搬させることができる。よって、光回収部材は、任意の位置から第２リフレクタに向けて光を放射することができる。すなわち、第１光源や第２リフレクタ等がどのように配置されていても、光回収部材を容易かつ適切に設けることができる。 According to the invention described in (11) above, since the light recovery member is a light guide, light can be propagated to an arbitrary position. Therefore, the light recovery member can emit light toward the second reflector from any position. That is, regardless of how the first light source, the second reflector, and the like are arranged, the light recovery member can be provided easily and appropriately.
　（１２）上述した発明において、前記第２リフレクタは、前記光回収部材によって導かれる光を反射することによって、正面視で前記第１リフレクタと重なる前記アウターレンズの領域（Ａ１）、正面視で前記第２リフレクタと重なるアウターレンズの領域（Ａ２）、および、正面視で前記第１リフレクタおよび前記第２リフレクタのいずれとも重ならないアウターレンズの領域（Ａ３、Ｂ）のいずれか１つまたは２つの領域に向けて光を照射する前照灯。 (12) In the above-described invention, the second reflector reflects the light guided by the light recovery member, so that the region (A1) of the outer lens that overlaps the first reflector in a front view, the front reflector in the region One or two regions of the outer lens region (A2) that overlaps the second reflector and the outer lens region (A3, B) that does not overlap any of the first reflector and the second reflector in front view A headlamp that emits light toward
　（１３）上述した発明において、前記第２リフレクタは、前記光回収部材によって導かれる光を反射するによって、正面視で前記第１リフレクタ及び前記第２リフレクタのいずれとも重ならない前記アウターレンズの領域（Ａ３、Ｂ）を少なくとも含む領域に向けて光を照射する前照灯。 (13) In the above-described invention, the second reflector reflects the light guided by the light recovery member, so that the outer lens region does not overlap with either the first reflector or the second reflector in a front view ( A headlamp that irradiates light toward a region including at least A3 and B).
　例えば、領域（Ａ１）に向けて第２リフレクタが光を反射する場合は、前照灯の前方を一層明るく照らすことができる。つまり、前照灯の視認性を一層向上させることができる。同様に、領域（Ａ２）に向けて第２リフレクタが光を反射する場合も、前照灯の視認性を一層向上させることができる。また、領域（Ａ３、Ｂ）に向けて第２リフレクタが光を反射する場合は、この領域自体を明るくさせること、および、前照灯の前方を一層明るく照らすことの少なくとも一方を実現できる。したがって、前記（１２）および前記（１３）に記載の発明によれば、前照灯の被視認性および／または視認性を向上させることができる。 For example, when the second reflector reflects light toward the area (A1), the front of the headlamp can be illuminated more brightly. That is, the visibility of the headlamp can be further improved. Similarly, when the second reflector reflects light toward the region (A2), the visibility of the headlamp can be further improved. In addition, when the second reflector reflects light toward the area (A3, B), at least one of making the area itself bright and illuminating the front of the headlamp brighter can be realized. Therefore, according to the invention described in (12) and (13), the visibility and / or visibility of the headlamp can be improved.
　（１４）上述した発明において、前記第２リフレクタは、前記光回収部材によって導かれる光を反射するによって、正面視で前記第２リフレクタと重なる前記アウターレンズの領域（Ａ２）、および、正面視で前記第１リフレクタ及び前記第２リフレクタのいずれとも重ならない前記アウターレンズの領域（Ａ３、Ｂ）の少なくともいずれかに向けて光を照射する前照灯。 (14) In the above-described invention, the second reflector reflects the light guided by the light recovery member, so that the outer lens region (A2) overlaps the second reflector in front view, and in front view. A headlamp that irradiates light toward at least one of the regions (A3, B) of the outer lens that does not overlap any of the first reflector and the second reflector.
　（１５）上述した発明において、前記第２リフレクタは、前記光回収部材によって導かれる光を反射するによって、正面視で前記第２リフレクタと重なる前記アウターレンズの領域（Ａ２）、および、正面視で前記第１リフレクタ及び前記第２リフレクタのいずれとも重ならない前記アウターレンズの領域（Ａ３、Ｂ）の双方に向けて光を照射する前照灯。 (15) In the above-described invention, the second reflector reflects the light guided by the light recovery member, so that the outer lens region (A2) overlaps the second reflector in front view, and in front view. A headlamp that irradiates light toward both the outer lens regions (A3, B) that do not overlap any of the first reflector and the second reflector.
　（１６）上述した発明において、前記第２リフレクタは、前記光回収部材によって導かれる光を反射するによって、正面視で前記第１リフレクタ及び前記第２リフレクタのいずれとも重ならない前記アウターレンズの領域（Ａ３、Ｂ）のみに向けて光を照射する前照灯。 (16) In the above-described invention, the second reflector reflects the light guided by the light recovery member, so that the outer lens region does not overlap with either the first reflector or the second reflector in a front view ( A headlamp that irradiates light only to A3, B).
　前記（１４）乃至（１６）に記載の各発明によれば、前照灯の被視認性および／または視認性を向上させることができる。 According to each invention described in the above (14) to (16), the visibility and / or visibility of the headlamp can be improved.
　（１７）上述した発明において、前記第２リフレクタは、前記光回収部材によって導かれる光を反射するによって、正面視で前記第１リフレクタと重なる前記アウターレンズの領域（Ａ１）、正面視で前記第２リフレクタと重なるアウターレンズの領域（Ａ２）、および、前記散乱部が形成されているアウターレンズの領域（Ｂ）のいずれか１つまたは２つの領域に向けて光を照射する前照灯。 (17) In the above-described invention, the second reflector reflects the light guided by the light recovery member, so that the outer lens region (A1) overlaps the first reflector in front view, and the first reflector in front view. A headlamp that irradiates light toward one or two regions of the outer lens region (A2) that overlaps the two reflectors and the outer lens region (B) where the scattering portion is formed.
　（１８）上述した発明において、前記第２リフレクタは、前記光回収部材によって導かれる光を反射するによって、前記散乱部が形成されているアウターレンズの領域（Ｂ）を少なくとも含む領域に向けて光を照射する前照灯。 (18) In the above-described invention, the second reflector reflects the light guided by the light recovery member to light toward an area including at least the outer lens area (B) where the scattering portion is formed. A headlamp to irradiate.
　例えば、領域（Ｂ）に向けて第２リフレクタが光を反射する場合は、この領域自体を明るくさせることができる。また、併せて、前照灯の前方を一層明るく照らすことも可能である。したがって、前記（１４）および前記（１５）に記載の発明によれば、前照灯の被視認性および／または視認性を向上させることができる。 For example, when the second reflector reflects light toward the region (B), the region itself can be brightened. In addition, the front of the headlamp can be illuminated more brightly. Therefore, according to the inventions described in (14) and (15), the visibility and / or visibility of the headlamp can be improved.
　（１９）上述した発明において、前記第２リフレクタは、前記光回収部材によって導かれる光を反射するによって、正面視で前記第２リフレクタと重なる前記アウターレンズの領域（Ａ２）、および、前記散乱部が形成されているアウターレンズの領域（Ｂ）の少なくともいずれかに向けて光を照射する前照灯。 (19) In the above-described invention, the second reflector reflects the light guided by the light recovery member, so that the region of the outer lens (A2) overlapping the second reflector in a front view, and the scattering portion The headlamp which irradiates light toward at least one of the area | region (B) of the outer lens in which is formed.
　（２０）上述した発明において、前記第２リフレクタは、前記光回収部材によって導かれる光を反射するによって、正面視で前記第２リフレクタと重なる前記アウターレンズの領域（Ａ２）、および、前記散乱部が形成されているアウターレンズの領域（Ｂ）の双方に向けて光を照射する前照灯。 (20) In the above-described invention, the second reflector reflects the light guided by the light recovery member, so that the region (A2) of the outer lens that overlaps with the second reflector in a front view, and the scattering portion The headlamp which irradiates light toward both the area | region (B) of the outer lens in which is formed.
　（２１）上述した発明において、前記第２リフレクタは、前記光回収部材によって導かれる光を反射するによって、前記散乱部が形成されているアウターレンズの領域（Ｂ）のみに向けて光を照射する前照灯。 (21) In the above-described invention, the second reflector irradiates light toward only the outer lens region (B) where the scattering portion is formed by reflecting the light guided by the light recovery member. Headlight.
　前記（１９）乃至（２１）に記載の各発明によれば、前照灯の被視認性および／または視認性を向上させることができる。 According to the inventions described in (19) to (21), the visibility and / or visibility of the headlamp can be improved.
　（２２）上述した発明に係る前照灯において、散乱部が形成されているアウターレンズの領域（Ｂ）は、前記第１光源の前方に相当するアウターレンズの領域である前照灯。 (22) In the headlamp according to the invention described above, the outer lens region (B) where the scattering portion is formed is the outer lens region corresponding to the front of the first light source.
　（２３）上述した発明に係る前照灯において、散乱部が形成されているアウターレンズの領域は、前記アウターレンズのうち、前記カバー部材の前方に相当する領域である前照灯。 (23) In the headlamp according to the invention described above, a region of the outer lens in which the scattering portion is formed is a headlamp that is a region corresponding to the front of the cover member in the outer lens.
　前記（２２）、（２３）に記載の発明によれば、前記領域は、正面視で第１リフレクタと隣接する領域であるので、前照灯の被視認性を効果的に向上させることができる。 According to the inventions described in (22) and (23), since the region is a region adjacent to the first reflector in a front view, the visibility of the headlamp can be effectively improved. .
　本発明に係る前照灯によれば、第１光源のＬＥＤが発光すると、第１光源の直接光は、主に第１リフレクタに向かって進む。第１リフレクタは、第１光源の直接光を前方に向けて反射する。反射された光は、ロービームの配光パターンで前方を照らす。この際、第１リフレクタは、第１光源の直接光によって照らされたように明るくなる。 According to the headlamp according to the present invention, when the LED of the first light source emits light, the direct light of the first light source mainly travels toward the first reflector. The first reflector reflects the direct light of the first light source toward the front. The reflected light illuminates the front with a low beam light distribution pattern. At this time, the first reflector becomes bright as if illuminated by the direct light of the first light source.
　また、第１光源の直接光の一部は、第１リフレクタから外れた方向に進み、光回収部材に入射する。光回収部材は、このような光を第２リフレクタに導く。よって、第２リフレクタも、光回収部材に導かれた光によって照らされたように明るくなる。 Also, part of the direct light from the first light source travels away from the first reflector and enters the light recovery member. The light recovery member guides such light to the second reflector. Therefore, the second reflector also becomes bright as if illuminated by the light guided to the light recovery member.
　他方、第２光源のＬＥＤが発光すると、第２光源の光は第２リフレクタに向かって進む。第２リフレクタは、第２光源の直接光を前方に向けて反射する。反射された光は、ハイビームの配光パターンで前方を照らす。 On the other hand, when the LED of the second light source emits light, the light of the second light source travels toward the second reflector. The second reflector reflects the direct light of the second light source toward the front. The reflected light illuminates the front with a high beam light distribution pattern.
　上述したように、第１光源が点灯すると、前照灯はロービームを照射する。この際、第１リフレクタのみならず、第２リフレクタも明るくなる。この結果、前照灯を外側からみたとき、第１リフレクタに比べて広い領域が明るく見える。このため、第１リフレクタをＬＥＤに対応した比較的小さい面積に抑制し、前照灯の小型化を図りつつ、前照灯の被視認性を向上させることができる。 As described above, when the first light source is turned on, the headlamp emits a low beam. At this time, not only the first reflector but also the second reflector is brightened. As a result, when the headlamp is viewed from the outside, a wider area appears brighter than the first reflector. For this reason, the visibility of the headlamp can be improved while suppressing the first reflector to a relatively small area corresponding to the LED and reducing the size of the headlamp.
　また、本発明に係る鞍乗型車両によれば、前照灯でロービームを照射しているとき、歩行者等は、前照灯を容易に視認することができる。 Further, according to the saddle riding type vehicle according to the present invention, when a low beam is irradiated with the headlamp, a pedestrian or the like can easily see the headlamp.
実施例１に係る自動二輪車の概略構成を示した側面図である。1 is a side view showing a schematic configuration of a motorcycle according to a first embodiment. 実施例１に係る前照灯の斜視図である。1 is a perspective view of a headlamp according to Embodiment 1. FIG. フィン部材および支持部材の斜視図である。It is a perspective view of a fin member and a supporting member. 実施例１に係る前照灯の垂直断面図である。1 is a vertical sectional view of a headlamp according to Embodiment 1. FIG. 実施例１にかかる前照灯の要部斜視図である。It is a principal part perspective view of the headlamp concerning Example 1. FIG. 実施例１に係る前照灯の要部平面図である。1 is a plan view of a main part of a headlamp according to Embodiment 1. FIG. 実施例１に係る前照灯の正面図である。1 is a front view of a headlamp according to Embodiment 1. FIG. 実施例１に係るアウターレンズの要部正面図である。FIG. 3 is a front view of a main part of the outer lens according to Example 1. ロービームの点灯時の前照灯の動作を説明する模式図である。It is a schematic diagram explaining operation | movement of the headlamp at the time of lighting of a low beam. （ａ）は、実施例１の前照灯が照らす路面の範囲を模式的に示す図であり、（ｂ）は、従来例の前照灯が照らす路面の範囲を模式的に示す図である。(A) is a figure which shows typically the range of the road surface illuminated by the headlamp of Example 1, (b) is a figure which shows typically the range of the road surface illuminated by the headlamp of a prior art example. . ハイビームの点灯時の前照灯の動作を説明する模式図である。It is a schematic diagram explaining operation | movement of the headlamp at the time of lighting of a high beam. （ａ）は、実施例１に係る前照灯がロービームを点灯したときの様子を示す前照灯の正面図であり、（ｂ）は、従来例に係る前照灯がロービームを点灯したときの様子を示す前照灯の正面図である。(A) is a front view of the headlamp which shows a mode when the headlamp which concerns on Example 1 lights a low beam, (b) is when the headlamp which concerns on a prior art example lights a low beam It is a front view of the headlamp which shows the mode. 実施例２に係る前照灯の要部断面図である。It is principal part sectional drawing of the headlamp which concerns on Example 2. FIG. 実施例３に係る前照灯の筐体内部を示す要部斜視図である。It is a principal part perspective view which shows the housing inside of the headlamp which concerns on Example 3. FIG. 実施例３に係る前照灯の筐体内部を示す要部側面図である。It is a principal part side view which shows the inside of the housing | casing of the headlamp which concerns on Example 3. FIG. 変形例に係る前照灯において、ロービームの点灯時の前照灯の動作を説明する模式図である。It is a schematic diagram explaining operation | movement of the headlamp at the time of lighting of a low beam in the headlamp which concerns on a modification.
　以下、図面を参照して本発明の鞍乗型車両について説明する。 Hereinafter, the saddle riding type vehicle of the present invention will be described with reference to the drawings.
　（実施例１）
　図１は、実施例１に係る自動二輪車の概略構成を示した側面図である。図１においては図面の左側が自動二輪車１の前側である。 Example 1
FIG. 1 is a side view showing a schematic configuration of the motorcycle according to the first embodiment. In FIG. 1, the left side of the drawing is the front side of the motorcycle 1.
　１．自動二輪車１の全体概略構成
　自動二輪車１はメインフレーム３を備えている。メインフレーム３の下部にはエンジン５が支持されている。メインフレーム３の上部の前側には燃料タンク７が取り付けられている。メインフレーム３の上部の後側にはシート９が取り付けられている。 1. Overall Schematic Configuration of Motorcycle 1 The motorcycle 1 includes a main frame 3. An engine 5 is supported at the lower part of the main frame 3. A fuel tank 7 is attached to the front side of the upper part of the main frame 3. A seat 9 is attached to the rear side of the upper portion of the main frame 3.
　メインフレーム３の上部の前端部にはステアリングシャフト（図示省略）が回転可能に支持されている。ステアリングシャフトには、前照灯１１が支持されている。また、ステアリングシャフトの上部には、ハンドルバー１３が設けられている。ハンドルバー１３には、前照灯１１を点滅させるためのスイッチや、ロービームとハイビームを切り換えるためのスイッチ（図示省略）等が設けられている。ステアリングシャフトの下部にはフロントフォーク１５が連結されている。フロントフォーク１５の下部には前輪１７が回転可能に支持されている。 A steering shaft (not shown) is rotatably supported at the front end of the upper part of the main frame 3. A headlamp 11 is supported on the steering shaft. A handle bar 13 is provided on the upper portion of the steering shaft. The handle bar 13 is provided with a switch for blinking the headlamp 11, a switch (not shown) for switching between a low beam and a high beam. A front fork 15 is connected to the lower portion of the steering shaft. A front wheel 17 is rotatably supported at the lower portion of the front fork 15.
　メインフレーム３の下部の後端部には、スイングアーム２１が揺動可能に連結されている。スイングアーム２１の後端部には後輪２３が回転可能に支持されている。後輪２３には、後輪２３と一体に回転するドリブンスプロケット２５が連結されている。ドリブンスプロケット２５には、チェーン２７が掛け回されている。チェーン２７はさらに、ドライブスプロケット（図示省略）に掛け回されている。 A swing arm 21 is swingably connected to the rear end of the lower part of the main frame 3. A rear wheel 23 is rotatably supported at the rear end of the swing arm 21. A driven sprocket 25 that rotates integrally with the rear wheel 23 is connected to the rear wheel 23. A chain 27 is hung around the driven sprocket 25. The chain 27 is further wound around a drive sprocket (not shown).
　そして、エンジン５によって発生された動力は、ドライブスプロケットに出力される。ドライブスプロケットに出力された動力は、チェーン２７、ドリブンスプロケット２５を介して後輪２３に伝達される。これにより、後輪２３が回転し、自動二輪車１は前進する。自動二輪車１は、本発明における鞍乗型車両に相当する。 And the power generated by the engine 5 is output to the drive sprocket. The power output to the drive sprocket is transmitted to the rear wheel 23 via the chain 27 and the driven sprocket 25. As a result, the rear wheel 23 rotates and the motorcycle 1 moves forward. The motorcycle 1 corresponds to the saddle riding type vehicle in the present invention.
　２．前照灯１１の構成
　図２を参照する。図２は、実施例に係る前照灯の斜視図である。前照灯１１は、筐体３１とアウターレンズ３３とを備えている。筐体３１は筒形状を呈し、前部に開口を有している。アウターレンズ３３は、その開口を覆うように設けられている。 2. Configuration of Headlamp 11 Refer to FIG. FIG. 2 is a perspective view of the headlamp according to the embodiment. The headlamp 11 includes a housing 31 and an outer lens 33. The casing 31 has a cylindrical shape and has an opening at the front. The outer lens 33 is provided so as to cover the opening.
　アウターレンズ３３は、光を素通しする透明な第１領域Ａと、光を散乱させる第２領域Ｂとを有している。第１領域Ａは、アウターレンズ３３の上部および下部に形成されている。第２領域Ｂは、アウターレンズ３３の略中央部、すなわち、上下の第１領域Ａの間に形成されている。第２領域Ｂには、光を散乱させるための散乱部３４が設けられている。散乱部３４は、アウターレンズ３３の内側の面に上下方向に多段に形成された複数の凸部３４ａを有する。各凸部３４ａは、横方向に畝状に連なった形状を有している（図４を併せて参照）。 The outer lens 33 has a transparent first region A through which light passes and a second region B through which light is scattered. The first region A is formed on the upper and lower portions of the outer lens 33. The second region B is formed at a substantially central portion of the outer lens 33, that is, between the upper and lower first regions A. In the second region B, a scattering portion 34 for scattering light is provided. The scattering part 34 has a plurality of convex parts 34 a formed on the inner surface of the outer lens 33 in multiple stages in the vertical direction. Each convex portion 34a has a shape that is continuous in a bowl shape in the lateral direction (see also FIG. 4).
　筐体３１の後方の外部には、放熱するためのフィン部材３５が設けられている。フィン部材３５の材質は、アルミニウム等の金属であることが好ましい。 A fin member 35 for radiating heat is provided outside the housing 31. The material of the fin member 35 is preferably a metal such as aluminum.
　図３を参照する。図３は、フィン部材および支持部材の斜視図である。フィン部材３５の前部には、支持部材３７が一体に連結されている。これらフィン部材３５と支持部材３７によって、放熱部材３９を構成している。支持部材３７は略板形状を呈する。支持部材３７は、開口Ｃと凹部Ｄとを有する。開口Ｃは、凹部Ｄの前方に配置されている。 Refer to FIG. FIG. 3 is a perspective view of the fin member and the support member. A support member 37 is integrally connected to the front portion of the fin member 35. The fin member 35 and the support member 37 constitute a heat radiating member 39. The support member 37 has a substantially plate shape. The support member 37 has an opening C and a recess D. The opening C is disposed in front of the recess D.
　開口Ｃは、支持部材３７を上下方向に貫通するように形成されている。開口Ｃは、４つの内壁面によって形成されている。開口Ｃの４つの内壁面のうち、後側の内壁面３７ａは傾斜している。また、図３には表れていないが、開口Ｃの前側の内壁面（後述する内壁面３７ｄ）も傾斜している。これにより、開口Ｃによって形成される空間は、斜めに傾いた四角柱のような形状を呈する。 The opening C is formed so as to penetrate the support member 37 in the vertical direction. The opening C is formed by four inner wall surfaces. Of the four inner wall surfaces of the opening C, the rear inner wall surface 37a is inclined. Although not shown in FIG. 3, the inner wall surface on the front side of the opening C (an inner wall surface 37 d described later) is also inclined. Thereby, the space formed by the opening C exhibits a shape like a square column inclined obliquely.
　凹部Ｄは、支持部材３７の上面に形成されている。凹部Ｄは、前側の内壁面３７ｂおよび後側の内壁面３７ｃ等によって形成されている。内壁面３７ｂおよび内壁面３７ｃはそれぞれ傾斜しており、凹部Ｄは断面視で略Ｖの字形状に窪んでいる。 The recess D is formed on the upper surface of the support member 37. The recess D is formed by a front inner wall surface 37b, a rear inner wall surface 37c, and the like. Each of the inner wall surface 37b and the inner wall surface 37c is inclined, and the recess D is recessed in a substantially V shape in a cross-sectional view.
　図４を参照する。図４は、実施例に係る前照灯の垂直断面図である。図４において図面の左側は、前照灯１１の前側である。また、図面の上側は前照灯１１の上側であり、図面の下側が前照灯１１の下側である。支持部材３７は、筐体３１の内部に配置されている。具体的には、筐体３１の後部の開口を通じて、支持部材３７が筐体３１内に挿入されている。筐体３１の後部の開口は、フィン部材３５の前面で閉塞されている。 Refer to FIG. FIG. 4 is a vertical sectional view of the headlamp according to the embodiment. In FIG. 4, the left side of the drawing is the front side of the headlamp 11. Further, the upper side of the drawing is the upper side of the headlamp 11, and the lower side of the drawing is the lower side of the headlamp 11. The support member 37 is disposed inside the housing 31. Specifically, the support member 37 is inserted into the housing 31 through the opening at the rear of the housing 31. The rear opening of the housing 31 is closed by the front surface of the fin member 35.
　支持部材３７は、第１光源４１と第２光源４４とを支持している。第１光源４１はロービーム用の光を発光し、第２光源４４はハイビーム用の光を発光する。第１光源４１は、開口Ｃの前側の内壁面３７ｄに取り付けられている。第２光源４４は、凹部Ｄの内壁面３７ｂに取り付けられている。 The support member 37 supports the first light source 41 and the second light source 44. The first light source 41 emits light for low beam, and the second light source 44 emits light for high beam. The first light source 41 is attached to the inner wall surface 37d on the front side of the opening C. The second light source 44 is attached to the inner wall surface 37b of the recess D.
　第１光源４１は、基板４２と、ＬＥＤ（発光ダイオード：Light Emitting Diode）４３とを備えている。基板４２は略四角形の板形状を呈する。この基板４２の一方面４２ａに、ＬＥＤ４３が取り付けられている。なお、基板４２に設置されるＬＥＤ４３の数は、単一であってもよいし、複数であってもよい。基板４２の他方面（裏面）は、開口Ｃの内壁面３７ｄと接触している。 The first light source 41 includes a substrate 42 and an LED (Light Emitting Diode) 43. The substrate 42 has a substantially rectangular plate shape. An LED 43 is attached to one surface 42 a of the substrate 42. In addition, the number of LED43 installed in the board | substrate 42 may be single, and plural may be sufficient as it. The other surface (back surface) of the substrate 42 is in contact with the inner wall surface 37 d of the opening C.
　このように構成される第１光源４１は、基板４２の一方面４２ａ側のみに発光し、基板４２の裏面側には発光しない。以下では、基板４２の一方面４２ａを適宜に「発光面４２ａ」と呼ぶ。第１光源４１は、その発光面４２ａが下向きとなるように設置されている。 The first light source 41 configured in this manner emits light only on the one surface 42a side of the substrate 42 and does not emit light on the back surface side of the substrate 42. Hereinafter, the one surface 42a of the substrate 42 is appropriately referred to as a “light emitting surface 42a”. The first light source 41 is installed such that the light emitting surface 42a faces downward.
　また、第１光源４１は、一方向を中心に強い光を照射する傾向がある。以下では、この一方向を便宜上、「光軸Ｐ」と呼ぶ。本実施例では、第１光源４１の光軸Ｐは、基板４２に直角で、ＬＥＤ４３を通る軸と略一致しているものとして説明する。そうすると、第１光源４１は、図４に示すように、その光軸Ｐが下向きとなるように設置されている。より詳細には、第１光源４１は、その光軸Ｐが垂直方向に対して後方に傾斜するように設置されている。なお、垂直方向は、前照灯１１の上下方向と同義である。 Also, the first light source 41 tends to irradiate strong light around one direction. Hereinafter, this one direction is referred to as “optical axis P” for convenience. In the present embodiment, it is assumed that the optical axis P of the first light source 41 is perpendicular to the substrate 42 and substantially coincides with the axis passing through the LED 43. Then, as shown in FIG. 4, the first light source 41 is installed so that its optical axis P faces downward. In more detail, the 1st light source 41 is installed so that the optical axis P may incline back with respect to a perpendicular direction. The vertical direction is synonymous with the vertical direction of the headlamp 11.
　第２光源４４は、第１光源４１と同じ構造を有する。すなわち、第２光源４４は、基板４５と、ＬＥＤ４６とを備えている。基板４５は上述した基板４２と対応し、ＬＥＤ４６は上述したＬＥＤ４３と対応する。基板４５の裏面は、凹部Ｄの内壁面３７ｂと接触している。 The second light source 44 has the same structure as the first light source 41. That is, the second light source 44 includes a substrate 45 and an LED 46. The substrate 45 corresponds to the substrate 42 described above, and the LED 46 corresponds to the LED 43 described above. The back surface of the substrate 45 is in contact with the inner wall surface 37b of the recess D.
　第２光源４４は、その発光面４５ａが上向きとなるように設置されている。また、第２光源４４は、その光軸Ｑが上向きとなるように設置されている。より詳細には、第２光源４４は、その光軸Ｑが垂直方向に対して後方に傾斜するように設置されている。 The second light source 44 is installed such that the light emitting surface 45a faces upward. The second light source 44 is installed such that its optical axis Q is upward. More specifically, the second light source 44 is installed such that its optical axis Q is inclined backward with respect to the vertical direction.
　筐体３１の内部には、さらに、ロービームを照射するための第１リフレクタ４７と、ハイビームを照射するための第２リフレクタ４９が設けられている。 Inside the housing 31, a first reflector 47 for irradiating a low beam and a second reflector 49 for irradiating a high beam are further provided.
　第１リフレクタ４７は、第１光源４１の下方に設けられている。第１リフレクタ４７は、第１光源４１の光軸Ｐと交わるように配置されている。また、第１リフレクタ４７は、その後端４７ａがＬＥＤ４３の高さ位置より低くなるように配置されている。 The first reflector 47 is provided below the first light source 41. The first reflector 47 is disposed so as to intersect the optical axis P of the first light source 41. Further, the first reflector 47 is arranged so that the rear end 47 a is lower than the height position of the LED 43.
　第１光源４１および第１リフレクタ４７は、第１光源４１の位置またはその近傍が第１リフレクタ４７の焦点の位置と一致するようにそれぞれ配置されている。よって、第１光源４１の光は、第１リフレクタ４７の焦点近傍から第１リフレクタ４７に入射する。第１リフレクタ４７は第１光源４１の光を前方へ向けて反射する。第１リフレクタ４７によって前方へ照射される光がロービームの配光パターンを形成するように、第１リフレクタ４７は設計されている。以下では、第１光源４１の点灯時に第１リフレクタ４７が照射する光を、特に「ロービーム」と呼ぶ。 The first light source 41 and the first reflector 47 are arranged so that the position of the first light source 41 or the vicinity thereof coincides with the position of the focal point of the first reflector 47. Therefore, the light from the first light source 41 enters the first reflector 47 from the vicinity of the focal point of the first reflector 47. The 1st reflector 47 reflects the light of the 1st light source 41 toward the front. The first reflector 47 is designed so that the light irradiated forward by the first reflector 47 forms a low beam light distribution pattern. Hereinafter, the light emitted by the first reflector 47 when the first light source 41 is turned on is particularly referred to as “low beam”.
　第２リフレクタ４９は、第２光源４４の上方に設けられている。第２リフレクタ４９は、第２光源４４の光軸Ｑと交わるように配置されている。また、第２リフレクタ４９は、その後端４９ａがＬＥＤ４６の高さ位置より高くなるように配置されている。 The second reflector 49 is provided above the second light source 44. The second reflector 49 is disposed so as to intersect the optical axis Q of the second light source 44. Further, the second reflector 49 is arranged so that the rear end 49 a is higher than the height position of the LED 46.
　この第２リフレクタ４９は、第２光源４４の位置またはその近傍を焦点とする。よって、第２光源４４の光は、第２リフレクタ４９の焦点近傍から第２リフレクタ４９に入射する。第２リフレクタ４９はその光を反射し、前方へ光を照射する。第２リフレクタ４９によって前方へ照射される光がハイビームの配光パターンを形成するように、第２リフレクタ４９は設計されている。以下では、第２光源４４の点灯時に第２リフレクタ４９が照射する光を、特に「ハイビーム」と呼ぶ。 The second reflector 49 is focused on the position of the second light source 44 or the vicinity thereof. Therefore, the light from the second light source 44 enters the second reflector 49 from the vicinity of the focal point of the second reflector 49. The second reflector 49 reflects the light and irradiates the light forward. The second reflector 49 is designed such that the light irradiated forward by the second reflector 49 forms a high beam light distribution pattern. Hereinafter, the light emitted by the second reflector 49 when the second light source 44 is turned on is particularly referred to as “high beam”.
　これら第１リフレクタ４７および第２リフレクタ４９は、それらの各反射面が互いに向かい合うように設けられている。また、側面視において、第２リフレクタ４９によって形成される弧は、第１リフレクタ４７によって形成される弧に比べて長い。換言すれば、第２リフレクタ４９は、第１リフレクタ４７に比べて前後方向の長さが長い。 The first reflector 47 and the second reflector 49 are provided so that their reflecting surfaces face each other. Further, in the side view, the arc formed by the second reflector 49 is longer than the arc formed by the first reflector 47. In other words, the second reflector 49 is longer in the front-rear direction than the first reflector 47.
　図５を参照する。図５は実施例にかかる前照灯の要部斜視図である。図示するように、第１リフレクタ４７は、複数に分割された反射面４７ｂによって構成されている。同様に、第２リフレクタ４９は、複数に分割された反射面４９ｂによって構成されている。これら第１リフレクタ４７および第２リフレクタ４７は、放物面鏡を基本としている。 Refer to FIG. FIG. 5 is a perspective view of a main part of the headlamp according to the embodiment. As shown in the drawing, the first reflector 47 is constituted by a reflective surface 47b divided into a plurality of parts. Similarly, the 2nd reflector 49 is comprised by the reflective surface 49b divided | segmented into plurality. The first reflector 47 and the second reflector 47 are based on a parabolic mirror.
　筐体３１の内部には、さらに支持部材３７を覆うためのカバー部材５１が設けられている。カバー部材５１は、扁平な箱形状を呈している。カバー部材５１は、支持部材３７を覆うように設けられている。カバー部材５１は、アルミニウム等の蒸着処理やめっき処理等が施されており、第１、第２リフレクタ４７、４９と同様に光を反射する。 A cover member 51 for covering the support member 37 is further provided inside the housing 31. The cover member 51 has a flat box shape. The cover member 51 is provided so as to cover the support member 37. The cover member 51 is subjected to vapor deposition treatment or plating treatment of aluminum or the like, and reflects light in the same manner as the first and second reflectors 47 and 49.
　カバー部材５１の上面には、開口Ｃと対応する開口Ｅが形成されている。カバー部材５１は、開口Ｅの後方に設けられる傾斜面５１ａを有している。 An opening E corresponding to the opening C is formed on the upper surface of the cover member 51. The cover member 51 has an inclined surface 51 a provided behind the opening E.
　図４を併せて参照する。傾斜面５１ａは、第１光源４１のＬＥＤ４３と対向している。傾斜面５１ａは、後側に向かって高くなるように傾斜している。傾斜面５１ａの前端は、第１リフレクタ４７の後端４７ａに近接している。傾斜面５１ａは、本発明における補助リフレクタに相当する。 Referring also to FIG. The inclined surface 51 a faces the LED 43 of the first light source 41. The inclined surface 51a is inclined so as to become higher toward the rear side. The front end of the inclined surface 51 a is close to the rear end 47 a of the first reflector 47. The inclined surface 51a corresponds to an auxiliary reflector in the present invention.
　さらに、カバー部材５１が第１光源４１および第２光源４４の光を遮らないように、カバー部材５１の上面および下面には開口や切り欠きが形成されている。 Furthermore, openings and cutouts are formed on the upper and lower surfaces of the cover member 51 so that the cover member 51 does not block the light of the first light source 41 and the second light source 44.
　上述した前照灯１１について、各部材の位置関係を改めて説明する。図６を参照する。図６は、実施例に係る前照灯の要部平面図である。図６において図面の左側が前照灯１１の前側に相当し、図面の右側が前照灯１１の後側に相当する。図示するように、平面視において、第１光源４１、傾斜面５１ａおよび第２光源４４は前後方向に一列に並ぶように配置されている。すなわち、第１光源４１の後方に傾斜面５１ａが位置し、傾斜面５１ａの後方に第２光源４４が位置している。 The positional relationship between the members of the headlamp 11 described above will be described again. Please refer to FIG. FIG. 6 is a plan view of an essential part of the headlamp according to the embodiment. In FIG. 6, the left side of the drawing corresponds to the front side of the headlamp 11, and the right side of the drawing corresponds to the rear side of the headlamp 11. As shown in the drawing, the first light source 41, the inclined surface 51a, and the second light source 44 are arranged in a line in the front-rear direction in plan view. That is, the inclined surface 51a is located behind the first light source 41, and the second light source 44 is located behind the inclined surface 51a.
　図７を参照する。図７は、実施例に係る前照灯の正面図である。なお、図７では、便宜上、アウターレンズ３３の散乱部３４の図示を省略している。図示するように、正面視において、第１光源４１、傾斜面５１ａ及び第２光源４４は、互いに重なるように配置されている。換言すれば、第１光源４１と傾斜面５１ａと第２光源４４とは、前後方向に１列に並ぶように配置されている。 Refer to FIG. FIG. 7 is a front view of the headlamp according to the embodiment. In FIG. 7, the scattering portion 34 of the outer lens 33 is not shown for convenience. As shown in the drawing, the first light source 41, the inclined surface 51a, and the second light source 44 are disposed so as to overlap each other in a front view. In other words, the first light source 41, the inclined surface 51a, and the second light source 44 are arranged in a line in the front-rear direction.
　第１リフレクタ４７は、正面視において、第２リフレクタ４９の上方に配置されている。正面視では、第１リフレクタ４７は第１光源４１に近接しており、第２リフレクタ４９は第２光源４４に近接している。また、正面視では、第１リフレクタ４７の領域は、第２リフレクタ４９の領域に比べて大きい。 The first reflector 47 is disposed above the second reflector 49 in the front view. In the front view, the first reflector 47 is close to the first light source 41, and the second reflector 49 is close to the second light source 44. Further, in the front view, the area of the first reflector 47 is larger than the area of the second reflector 49.
　カバー部材５１は、正面視において、第１リフレクタ４７と第２リフレクタ４９の間に配置されている。正面視では、カバー部材５１は、第１リフレクタ４７および第２リフレクタ４９にそれぞれ近接している。 The cover member 51 is disposed between the first reflector 47 and the second reflector 49 in the front view. In the front view, the cover member 51 is close to the first reflector 47 and the second reflector 49, respectively.
　図８を参照する。図８は、アウターレンズ３３の要部正面図である。上述したアウターレンズ３３の第１領域Ａは、正面視で第１リフレクタ４７および第２リフレクタ４９の領域と重なっている。具体的には、第１領域Ａは、正面視で第１リフレクタ４７と重なるアウターレンズ３３の領域Ａ１と、正面視で第２リフレクタ４９と重なるアウターレンズ３３の領域Ａ２とを実質的に含んでいる。換言すれば、第１領域Ａは、正面視で第１リフレクタ４７がアウターレンズ３３に投影される領域Ａ１と、正面視で第２リフレクタ４９がアウターレンズ３３に投影される領域Ａ２を実質的に含んでいる。また、本明細書では、第１領域Ａから領域Ａ１および領域Ａ２を除いた領域を、「領域Ａ３」という。 Refer to FIG. FIG. 8 is a front view of the main part of the outer lens 33. The first area A of the outer lens 33 described above overlaps the areas of the first reflector 47 and the second reflector 49 in a front view. Specifically, the first region A substantially includes a region A1 of the outer lens 33 that overlaps the first reflector 47 in the front view and a region A2 of the outer lens 33 that overlaps the second reflector 49 in the front view. Yes. In other words, the first region A substantially includes a region A1 where the first reflector 47 is projected onto the outer lens 33 in a front view and a region A2 where the second reflector 49 is projected onto the outer lens 33 in a front view. Contains. In this specification, a region obtained by removing the region A1 and the region A2 from the first region A is referred to as “region A3”.
　アウターレンズ３３の第２領域Ｂは、正面視でカバー部材５１の領域と重なっている。具体的には、第２領域Ｂは、正面視でカバー部材５１と重なるアウターレンズ３３の領域Ｂ１を実質的に含んでいる。換言すれば、第２領域Ｂは、正面視でカバー部材５１がアウターレンズ３３に投影される領域Ｂ１を実質的に含んでいる。したがって、第２領域Ｂに形成される散乱部３４は、図４に示すように、アウターレンズ３３のうち、カバー部材５１の前方に相当する位置に設けられていると言うことができる。また、第２領域Ｂは、正面視で第１リフレクタ４７および第２リフレクタ４９の双方と近接している。ただし、第２領域Ｂは、正面視で第１リフレクタ４７および第２リフレクタ４９のいずれとも実質的に重ならない。換言すれば、第２領域Ｂは、上述した領域Ａ１および領域Ａ２を実質的に含んでいない。 The second region B of the outer lens 33 overlaps the region of the cover member 51 in a front view. Specifically, the second region B substantially includes a region B1 of the outer lens 33 that overlaps the cover member 51 in a front view. In other words, the second region B substantially includes a region B1 where the cover member 51 is projected onto the outer lens 33 in a front view. Therefore, it can be said that the scattering portion 34 formed in the second region B is provided at a position corresponding to the front of the cover member 51 in the outer lens 33 as shown in FIG. The second region B is close to both the first reflector 47 and the second reflector 49 in front view. However, the second region B does not substantially overlap any of the first reflector 47 and the second reflector 49 in front view. In other words, the second region B substantially does not include the above-described region A1 and region A2.
　また、上述した領域Ａ３と領域Ｂは、正面視で第１リフレクタ４７および第２リフレクタ４９のいずれとも重ならないアウターレンズ３３の領域と言うことができる。 Further, the above-described region A3 and region B can be said to be regions of the outer lens 33 that do not overlap with either the first reflector 47 or the second reflector 49 in front view.
　３．動作
　次に、実施例１に係る前照灯１１及び自動二輪車１の動作について、ロービームの点灯時とハイビームの点灯時とに分けて説明する。 3. Operation Next, operations of the headlamp 11 and the motorcycle 1 according to the first embodiment will be described separately when the low beam is turned on and when the high beam is turned on.
　３．１．ロービームの点灯時
　ロービームを点灯する際は、自動二輪車１の搭乗者は、ハンドルバー１３に設けられているスイッチを操作して、第１光源４１のみを発光させる。なお、第２光源４４は消灯している。 3.1. When the low beam is turned on When the low beam is turned on, the rider of the motorcycle 1 operates a switch provided on the handlebar 13 so that only the first light source 41 emits light. The second light source 44 is turned off.
　図９を参照する。図９は、ロービームの点灯時における前照灯の動作を説明する模式図である。図９において、図面の左側が前照灯の前側である。図示するように、第１光源４１の直接光は光軸Ｐを中心として下方に進む（図９では光軸Ｐを省略）。第１光源４１の直接光は主として第１リフレクタ４７に向かって進む。この光が第１リフレクタ４７に入射すると、第１リフレクタ４７は入射した光を反射する。これにより、第１リフレクタ４７は、ロービームＬを照射する。ロービームＬは、アウターレンズ３３の第１領域Ａを透過して前照灯１１の前方に進む。そして、ロービームＬは、自動二輪車１の前方を照らす。 Refer to FIG. FIG. 9 is a schematic diagram for explaining the operation of the headlamp when the low beam is turned on. In FIG. 9, the left side of the drawing is the front side of the headlamp. As shown in the figure, the direct light of the first light source 41 travels downward about the optical axis P (the optical axis P is omitted in FIG. 9). Direct light from the first light source 41 travels mainly toward the first reflector 47. When this light enters the first reflector 47, the first reflector 47 reflects the incident light. Thereby, the first reflector 47 emits the low beam L. The low beam L passes through the first region A of the outer lens 33 and travels forward of the headlamp 11. The low beam L illuminates the front of the motorcycle 1.
　このとき、第１リフレクタ４７の反射率は１００％でないので、第１光源４１の直接光の一部は第１リフレクタ４７によって散乱する。この散乱によって、第１リフレクタ４７自体が照らされたように明るくなる。よって、第１リフレクタ４７自体が、前照灯１１の外部から第１領域Ａを通して明るく見える。 At this time, since the reflectance of the first reflector 47 is not 100%, a part of the direct light of the first light source 41 is scattered by the first reflector 47. Due to this scattering, the first reflector 47 itself becomes bright as if illuminated. Therefore, the first reflector 47 itself appears bright through the first region A from the outside of the headlamp 11.
　また、第１光源４１の直接光の一部は、第１リフレクタ４７の後端４７ａより外側に外れた方向に進み、傾斜面５１ａに入射する。傾斜面５１ａは、入射した光を第２リフレクタ４９に向けて反射する。このように傾斜面５１ａによって導かれた光は、第２リフレクタ４９に入射する。第２リフレクタ４９はこの光を反射し、図９に示すように前方（すなわち、アウターレンズ３３）に向けて光Ｓを照射する。このとき、傾斜面５１ａによって導かれた光の一部は第２リフレクタ４９によって散乱する。よって、第２リフレクタ４９自体も照らされたように明るくなる。よって、第２リフレクタ４９自体も、前照灯１１の外部から第１領域Ａを通して明るく見える。 Further, a part of the direct light of the first light source 41 proceeds in a direction deviating outward from the rear end 47a of the first reflector 47 and enters the inclined surface 51a. The inclined surface 51 a reflects incident light toward the second reflector 49. Thus, the light guided by the inclined surface 51 a enters the second reflector 49. The second reflector 49 reflects this light and irradiates the light S toward the front (that is, the outer lens 33) as shown in FIG. At this time, a part of the light guided by the inclined surface 51 a is scattered by the second reflector 49. Therefore, the second reflector 49 itself becomes bright as if illuminated. Therefore, the second reflector 49 itself also appears bright through the first area A from the outside of the headlamp 11.
　上述した光Ｓについて、さらに説明する。なお、本明細書では、光Ｓ、すなわち、第１リフレクタ４７が傾斜面５１ａによって導かれた光を反射することによって、第１リフレクタ４７が照射する光Ｓを、特に「補助ビームＳ」と呼ぶ。傾斜面５１ａによって導かれた光は、第２光源（すなわち、第２リフレクタ４９の焦点近傍）よりも前方の位置から第２リフレクタ４９に入射する。このため、第２リフレクタ４９が照射する補助ビームＳは、ハイビーム（後述する図１１において符号「Ｈ」で示す）よりも下方に傾斜した方向に進む。 The light S described above will be further described. In this specification, the light S, that is, the light S irradiated by the first reflector 47 when the first reflector 47 reflects the light guided by the inclined surface 51a is particularly referred to as an “auxiliary beam S”. . The light guided by the inclined surface 51a enters the second reflector 49 from a position ahead of the second light source (that is, near the focal point of the second reflector 49). For this reason, the auxiliary beam S irradiated by the second reflector 49 travels in a direction inclined downward from the high beam (indicated by reference numeral “H” in FIG. 11 described later).
　この補助ビームＳは、前方に進むにつれて下方に傾斜する方向（すなわち、水平方向よりも下方に傾斜した方向）に進むことが好ましい。さらに、補助ビームＳは、ロービームＬの方向に比べて下方に傾斜した方向に進むことが好ましい。 The auxiliary beam S preferably travels in a direction inclined downward as it travels forward (that is, a direction inclined downward relative to the horizontal direction). Furthermore, the auxiliary beam S preferably travels in a direction inclined downward as compared to the direction of the low beam L.
　本実施例では、図９に示すように、補助ビームＳが実質的に第２領域Ｂに向けて進むように設定されている。よって、補助ビームＳは第２領域Ｂ（散乱部３４）に入射し、散乱部３４は入射した光を散乱させる。これにより、第２領域Ｂの外側の面は、面発光する。また、第２領域Ｂ（散乱部３４）に入射した補助ビームＳの一部は、アウターレンズ３３を通過し、さらに前方に進み、路面を照らす。 In this embodiment, as shown in FIG. 9, the auxiliary beam S is set so as to substantially proceed toward the second region B. Therefore, the auxiliary beam S enters the second region B (scattering portion 34), and the scattering portion 34 scatters the incident light. Thereby, the surface outside the second region B emits light. Further, a part of the auxiliary beam S incident on the second region B (scattering portion 34) passes through the outer lens 33, proceeds further forward, and illuminates the road surface.
　図１０を参照する。図１０（ａ）は、本実施例の前照灯が照らす路面の範囲を模式的に示す図であり、図１０（ｂ）は、従来例の前照灯が照らす路面の範囲を模式的に示す図である。図１０（ａ）に示すように、前照灯１１は、自動二輪車１の前方の路面Ｇの範囲ＬＡおよび範囲ＬＳを照らす。ここで、範囲ＬＡは、ロービームＬによって照らされる路面Ｇの範囲である。範囲ＳＡは、補助ビームＳによって照らされる路面Ｇの範囲である。図１０（ａ）から明らかなように、範囲ＳＡは、範囲ＬＡに比べて自動二輪車１（前照灯１１）に近い。すなわち、前照灯１１は、ロービームＬが照らす範囲ＬＡに加えて、手前側の範囲ＳＡも照らすことができる。 Refer to FIG. FIG. 10A is a diagram schematically showing the range of the road surface illuminated by the headlamp of this embodiment, and FIG. 10B is a schematic diagram of the range of the road surface illuminated by the conventional headlamp. FIG. As shown in FIG. 10A, the headlamp 11 illuminates the range LA and the range LS of the road surface G in front of the motorcycle 1. Here, the range LA is a range of the road surface G illuminated by the low beam L. The range SA is a range of the road surface G illuminated by the auxiliary beam S. As apparent from FIG. 10A, the range SA is closer to the motorcycle 1 (headlight 11) than the range LA. That is, the headlamp 11 can illuminate the front side range SA in addition to the range LA illuminated by the low beam L.
　比較のために、図１０（ｂ）を参照して従来例を簡単に説明する。従来例の前照灯は、ロービームの点灯時には、ロービームのみを照射する。このため、従来例の前照灯は、自動二輪車１００の前方の路面Ｇの範囲ＬＡのみを照らす。換言すれば、従来例の前照灯は、範囲ＬＡよりも手前側の範囲（すなわち、上述した範囲ＳＡのような範囲）を照らすことができない。 For comparison, a conventional example will be briefly described with reference to FIG. The conventional headlamp irradiates only the low beam when the low beam is turned on. For this reason, the conventional headlamp illuminates only the range LA of the road surface G in front of the motorcycle 100. In other words, the conventional headlamp cannot illuminate a range in front of the range LA (that is, a range such as the above-described range SA).
　３．２．ハイビームの点灯時
　図１１を参照する。図１１は、ハイビームの点灯時の前照灯の動作を説明する模式図である。図１１において、図面の左側が前照灯１１の前側である。 3.2. When the high beam is lit Refer to FIG. FIG. 11 is a schematic diagram for explaining the operation of the headlamp when the high beam is turned on. In FIG. 11, the left side of the drawing is the front side of the headlamp 11.
　ハイビームを点灯する際は、自動二輪車１の搭乗者は、ハンドルバー１３に設けられているスイッチを操作して、第２光源４４を発光させる。このとき、第１光源４１は消灯している。第２光源４４の直接光は、第２リフレクタ４９に向かって進む。この光が第２リフレクタ４９に入射すると、第２リフレクタ４９は第２光源４４の光を反射する。これにより、第２リフレクタ４９は、前方に向けてハイビームＨを照射する。ハイビームＨは、自動二輪車１の前方を照らす。 When turning on the high beam, the rider of the motorcycle 1 operates the switch provided on the handle bar 13 to cause the second light source 44 to emit light. At this time, the first light source 41 is turned off. Direct light from the second light source 44 travels toward the second reflector 49. When this light enters the second reflector 49, the second reflector 49 reflects the light from the second light source 44. Thereby, the 2nd reflector 49 irradiates the high beam H toward the front. The high beam H illuminates the front of the motorcycle 1.
　なお、上述したロービームの点灯時、第１光源４１で発生した熱は、支持部材３７およびフィン部材３５を通じて前照灯１１の外部に放熱される。同様に、ハイビームの点灯時、第２光源４４で発生した熱は、支持部材３７およびフィン部材３５を通じて前照灯１１の外部に放熱される。これにより、第１光源４１および第２光源４４は適正な温度に保たれる。 It should be noted that the heat generated by the first light source 41 when the low beam is turned on is radiated to the outside of the headlamp 11 through the support member 37 and the fin member 35. Similarly, when the high beam is turned on, heat generated by the second light source 44 is radiated to the outside of the headlamp 11 through the support member 37 and the fin member 35. Thereby, the 1st light source 41 and the 2nd light source 44 are maintained at appropriate temperature.
　このように、実施例１に係る前照灯１１によれば、傾斜面５１ａを備えているので、ロービームＬの点灯時に、第１リフレクタ４７自体のみならず第２リフレクタ４９自体も明るく見える。さらに、アウターレンズ３３は散乱部３４を備え、第２リフレクタ４９は補助ビームＳを散乱部３４に向けて照射する。この結果、散乱部３４が設けられている領域Ｂは面発光する。このように、散乱部３４は、補助ビームＳを利用して、明るく見える前照灯１１の領域を効率良く形成することができる。これらの結果、前照灯１１の被視認性を効果的に向上させることができる。 Thus, according to the headlamp 11 according to the first embodiment, since the inclined surface 51a is provided, not only the first reflector 47 itself but also the second reflector 49 itself looks bright when the low beam L is turned on. Further, the outer lens 33 includes a scattering portion 34, and the second reflector 49 irradiates the auxiliary beam S toward the scattering portion 34. As a result, the area B where the scattering portion 34 is provided emits surface light. As described above, the scattering unit 34 can efficiently form the bright region of the headlamp 11 using the auxiliary beam S. As a result, the visibility of the headlamp 11 can be effectively improved.
　図１２を参照する。図１２（ａ）は、実施例１に係る前照灯がロービームを点灯したときの様子を示す前照灯の正面図であり、図１２（ｂ）は、従来例に係る前照灯がロービームを点灯したときの様子を模式的に示す前照灯の正面図である。 Refer to FIG. FIG. 12A is a front view of the headlamp showing a state when the headlamp according to the first embodiment lights the low beam, and FIG. 12B is a front view of the conventional headlamp according to the first example. It is a front view of the headlamp which shows a mode when it lights up.
　図示するように、ロービームＬを点灯している前照灯１１を正面からみると、明るく見える領域は、第１リフレクタ４７の領域、第２リフレクタ４９の領域、および、散乱部３４の領域に及んでいる。換言すれば、正面視において、アウターレンズ３３の領域Ａ１、Ａ２、Ｂが明るく見える。ここで、第２リフレクタ４９の領域は、第１リフレクタ４７の領域に比べて大きい。また、散乱部３４の領域Ｂは、正面視において第１リフレクタ４７および第２リフレクタ４９にそれぞれ隣接している。このため、前照灯１１が明るく見える領域は、まとまった一つの大きな領域となる。なお、散乱部３４の領域Ｂは面発光するので、カバー部材５１自体は外部から視認できないか、あるいは、視認しづらくなる。このため、図１２（ａ）では、カバー部材５１を点線で図示している。 As shown in the drawing, when the headlamp 11 that lights the low beam L is viewed from the front, the region that appears bright extends to the region of the first reflector 47, the region of the second reflector 49, and the region of the scattering portion 34. It is. In other words, the areas A1, A2, and B of the outer lens 33 appear bright when viewed from the front. Here, the area of the second reflector 49 is larger than the area of the first reflector 47. Further, the region B of the scattering portion 34 is adjacent to the first reflector 47 and the second reflector 49 in a front view. For this reason, the area where the headlamp 11 appears bright is one large area. In addition, since the area | region B of the scattering part 34 carries out surface emission, the cover member 51 itself cannot be visually recognized from the outside, or it becomes difficult to visually recognize. For this reason, in FIG. 12A, the cover member 51 is illustrated by a dotted line.
　これに対して、従来例では、ロービームを点灯している前照灯１０５を外部からみると、明るく見える領域は、ロービームを照射するリフレクタ１０７の領域のみである。 On the other hand, in the conventional example, when the headlamp 105 illuminating the low beam is viewed from the outside, the region that appears bright is only the region of the reflector 107 that irradiates the low beam.
　このように、本実施例によれば、第１リフレクタ４７を大きくすることなく、明るく見える前照灯１１の領域を第１リフレクタ４７の倍以上に大きくすることができる。よって、ロービームＬが点灯しているとき、前照灯１１は第三者に対して比較的に目立ち易くなり、視認され易くなる。すなわち、前照灯１１の被視認性を向上させることができる。このため、ＬＥＤ４３で構成される第１光源４１の特性等に対応して、第１リフレクタ４７の面積を小さくすることが許容される。これにより、前照灯１１を小型化することが可能である。 Thus, according to the present embodiment, the area of the headlamp 11 that appears bright can be made larger than the first reflector 47 without enlarging the first reflector 47. Therefore, when the low beam L is lit, the headlamp 11 is relatively conspicuous with respect to a third party and is easily visible. That is, the visibility of the headlamp 11 can be improved. For this reason, it is allowed to reduce the area of the first reflector 47 in accordance with the characteristics of the first light source 41 composed of the LEDs 43. Thereby, the headlamp 11 can be reduced in size.
　また、平面視で傾斜面５１ａは第２光源４４の前方に配置されているので、第２リフレクタ４９は、ハイビームＨの方向よりも下方に傾斜した方向に補助ビームＳを照射する。したがって、ロービームの点灯時に、歩行者等にまぶしさを与えることを防止でき、歩行者等を眩惑させることを防止できる。特に、水平方向よりも下方に傾斜した方向に補助ビームＳが進むように設定されていれば、補助ビームＳがまぶしく感じられることを確実に防止できる。 Moreover, since the inclined surface 51a is disposed in front of the second light source 44 in plan view, the second reflector 49 irradiates the auxiliary beam S in a direction inclined downward from the direction of the high beam H. Therefore, it is possible to prevent the pedestrians from being dazzled when the low beam is turned on, and to prevent the pedestrians from being dazzled. In particular, if the auxiliary beam S is set to travel in a direction inclined downward from the horizontal direction, it can be reliably prevented that the auxiliary beam S is felt dazzling.
　また、ロービームＬの方向よりも下方に傾斜した方向に補助ビームＳが進むように設定されていれば、補助ビームＳは、ロービームＬが照らす範囲ＬＡよりも手前側の範囲ＳＡを照らすことができる。これにより、搭乗者は手前側の範囲ＳＡも視認することができるので、搭乗者に安心感を与えることができる。特に、自動四輪車に比べて旋回半径が小さく、小回りがきく自動二輪車１の場合、搭乗者が自動二輪車１の近くの路面Ｇの状況を視認できることは重要である。このように、自動二輪車１の場合は、補助ビームＳによって範囲ＳＡを照らす効果は特に大きい。 Further, if the auxiliary beam S is set to travel in a direction inclined downward from the direction of the low beam L, the auxiliary beam S can illuminate a range SA on the near side of the range LA illuminated by the low beam L. . Thereby, since the passenger can also visually recognize the range SA on the near side, the passenger can be provided with a sense of security. In particular, in the case of the motorcycle 1 having a small turning radius and a small turn as compared with the automobile, it is important that the passenger can visually recognize the condition of the road surface G near the motorcycle 1. Thus, in the case of the motorcycle 1, the effect of illuminating the range SA with the auxiliary beam S is particularly great.
　また、本実施例では、傾斜面５１ａを第１光源４１より後方に配置している。このため、傾斜面５１ａは、第１光源４１に近接した位置に設置することができる。よって、傾斜面５１ａは、第１リフレクタ４７の後端４７ａの外側に外れた第１光源４１の光を効率よく回収することができる。さらに、傾斜面５１ａは、第１リフレクタ４７の後端４７ａに近接しているので、傾斜面５１ａは、第１リフレクタ４７から外れた第１光源４１の光を効率良く回収することができる。 In the present embodiment, the inclined surface 51 a is arranged behind the first light source 41. For this reason, the inclined surface 51 a can be installed at a position close to the first light source 41. Therefore, the inclined surface 51a can efficiently collect the light from the first light source 41 that has fallen outside the rear end 47a of the first reflector 47. Furthermore, since the inclined surface 51 a is close to the rear end 47 a of the first reflector 47, the inclined surface 51 a can efficiently collect the light of the first light source 41 that is out of the first reflector 47.
　また、傾斜面５１ａは、後側に向かって高くなるように傾斜しているので、傾斜面５１ａは、その上方に位置する第２リフレクタ４９に向けて第１光源４１の光を好適に導くことができる。 Further, since the inclined surface 51a is inclined so as to become higher toward the rear side, the inclined surface 51a suitably guides the light of the first light source 41 toward the second reflector 49 located above the inclined surface 51a. Can do.
　また、カバー部材５１の傾斜面５１ａを利用して、第１リフレクタ４７から外れた第１光源４１の光を第２リフレクタ４９に導く。このように、カバー部材５１が補助リフレクタを兼ねているので、構造を一層簡易にすることができる。 Further, the light from the first light source 41 that has been detached from the first reflector 47 is guided to the second reflector 49 using the inclined surface 51 a of the cover member 51. Thus, since the cover member 51 also serves as an auxiliary reflector, the structure can be further simplified.
　また、第１光源４１、第２光源４４、及び、傾斜面５１ａは、正面視で互いに重なるように配置されているので、前照灯１１の高さを低く抑えることができる。また、正面視において第１リフレクタ４７と第２リフレクタ４９とを互いに近接して配置することができる。 In addition, since the first light source 41, the second light source 44, and the inclined surface 51a are arranged so as to overlap each other when viewed from the front, the height of the headlamp 11 can be kept low. In addition, the first reflector 47 and the second reflector 49 can be disposed close to each other when viewed from the front.
　また、第１光源４１は、その光軸Ｐが垂直方向下方に向かって後側に傾斜するように設けられている。このため、正面視で第１リフレクタ４７を第１光源４１に近接するように配置しても、この第１リフレクタ４７に光軸Ｐを中心とした比較的強い光を入射させることができる。よって、第１リフレクタ４７は、十分な光量のロービームＬを適切に照射することができる。同様に、第２光源４４は、その光軸Ｑが垂直方向上方に向かって後側に傾斜するように設けられている。このため、第２リフレクタ４９も、十分な光量のハイビームＨを適切に照射することができる。 The first light source 41 is provided such that its optical axis P is inclined rearward in the vertical direction downward. For this reason, even if the first reflector 47 is disposed close to the first light source 41 in a front view, relatively strong light with the optical axis P as the center can be incident on the first reflector 47. Therefore, the first reflector 47 can appropriately irradiate the low beam L with a sufficient amount of light. Similarly, the second light source 44 is provided such that its optical axis Q is inclined rearward in the vertical direction upward. For this reason, the 2nd reflector 49 can also irradiate the high beam H of sufficient light quantity appropriately.
　また、実施例１に係る自動二輪車１によれば、前照灯１１の被視認性が高いので、歩行者や対向車の運転手等に対して自動二輪車１の存在を容易に認識させることができる。また、前照灯１１を容易に小型化可能であるので、前照灯１１を搭載する位置の自由度や前照灯１１を支持する構造の自由度を高めることができる。 Further, according to the motorcycle 1 according to the first embodiment, the visibility of the headlamp 11 is high, so that the presence of the motorcycle 1 can be easily recognized by a pedestrian or a driver of an oncoming vehicle. it can. Moreover, since the headlamp 11 can be reduced in size easily, the freedom degree of the position which mounts the headlamp 11, and the freedom degree of the structure which supports the headlamp 11 can be raised.
　（実施例２）
　以下、図面を参照して本発明の実施例２を説明する。実施例２の自動二輪車１の全体構成等は実施例１と略同様であるので、その説明を省略する。実施例２では前照灯の構造が実施例１と異なるので、以下では前照灯について説明する。なお、実施例１と同じ構成については同符号を付すことで詳細な説明を省略する。 (Example 2)
Embodiment 2 of the present invention will be described below with reference to the drawings. Since the overall configuration of the motorcycle 1 of the second embodiment is substantially the same as that of the first embodiment, description thereof is omitted. Since the structure of the headlamp is different from that of the first embodiment in the second embodiment, the headlamp will be described below. In addition, about the same structure as Example 1, detailed description is abbreviate | omitted by attaching | subjecting the same code | symbol.
　１．前照灯６１の構成
　図１３を参照する。図１３は、実施例２に係る前照灯の要部断面図である。図１３において、図面の左側は前照灯６１の前側である。図示するように、前照灯６１は、筐体６３とアウターレンズ６５を備えている。アウターレンズ６５は、光を素通しする透明な領域（すなわち、実施例１で説明した第１領域Ａ）のみで構成されている。すなわち、アウターレンズ６５は、実施例１で説明したような第２領域Ｂ（散乱部３４）を有していない。この場合、第１領域Ａから領域Ａ１および領域Ａ２を除いた領域Ａ３は、正面視で第１リフレクタ４７および第２リフレクタ４９のいずれとも重ならないアウターレンズ３３の領域と言うことができる。 1. Configuration of Headlamp 61 Reference is made to FIG. FIG. 13 is a cross-sectional view of a main part of the headlamp according to the second embodiment. In FIG. 13, the left side of the drawing is the front side of the headlamp 61. As shown in the drawing, the headlamp 61 includes a housing 63 and an outer lens 65. The outer lens 65 is configured only by a transparent region that allows light to pass through (that is, the first region A described in the first embodiment). That is, the outer lens 65 does not have the second region B (scattering portion 34) as described in the first embodiment. In this case, the region A3 obtained by removing the region A1 and the region A2 from the first region A can be said to be a region of the outer lens 33 that does not overlap with either the first reflector 47 or the second reflector 49 in the front view.
　筐体６３内には、第１光源４１、第２光源４４、第１リフレクタ４７および第２リフレクタ４９が設けられている。なお、図１３では、これら第１光源４１等を支持する部材の図示を省略している。 In the housing 63, a first light source 41, a second light source 44, a first reflector 47, and a second reflector 49 are provided. In FIG. 13, illustration of members that support the first light source 41 and the like is omitted.
　第１光源４１および第２光源４４は、第１光源４１を上側とし、第２光源４４を下側として、上下方向に並ぶように配置されている。第１光源４１は、その発光面４２ａが上向きとなるように設置されている。第２光源４４は、その発光面４５ａが下向きとなるように設置されている。 The first light source 41 and the second light source 44 are arranged in the vertical direction with the first light source 41 as the upper side and the second light source 44 as the lower side. The first light source 41 is installed such that the light emitting surface 42a faces upward. The second light source 44 is installed such that the light emitting surface 45a faces downward.
　第１リフレクタ４７は、第１光源４１の上方に設けられている。第１リフレクタ４７は、その後端４７ａがＬＥＤ４３の高さ位置より高くなるように配置されている。第１リフレクタ４７は、第１光源４１の位置またはその近傍を焦点とする。 The first reflector 47 is provided above the first light source 41. The first reflector 47 is arranged such that the rear end 47 a is higher than the height position of the LED 43. The first reflector 47 is focused on the position of the first light source 41 or the vicinity thereof.
　第２リフレクタ４９は、第２光源４４の下方に設けられている。第２リフレクタ４９は、その後端４９ａがＬＥＤ４６の高さ位置より低くなるように配置されている。第２リフレクタ４９は、第２光源４４の位置またはその近傍を焦点とする。 The second reflector 49 is provided below the second light source 44. The second reflector 49 is disposed such that the rear end 49 a is lower than the height position of the LED 46. The second reflector 49 focuses on the position of the second light source 44 or the vicinity thereof.
　筐体６３内には、さらに反射部材６７が設けられている。反射部材６７は、平面視で第１光源４１および第２光源４４の後方に配置されている。また、反射部材６７は、第１リフレクタ４７より下方であって、第２リフレクタ４９の上方に配置されている。より詳しくは、反射部材６７は、第１リフレクタ４７の後端４７ａに近接した位置に配置されている。さらに、反射部材６７は、第１光源４１および第２リフレクタ４９に臨むように設けられている。反射部材６７自体は、第１光源４１の直接光を第２リフレクタ４９に好適に導くことができるように適宜に屈曲しており、平面鏡ではない。反射部材６７は、本発明における補助リフレクタに相当する。 A reflective member 67 is further provided in the housing 63. The reflection member 67 is disposed behind the first light source 41 and the second light source 44 in plan view. Further, the reflecting member 67 is disposed below the first reflector 47 and above the second reflector 49. More specifically, the reflecting member 67 is disposed at a position close to the rear end 47 a of the first reflector 47. Further, the reflecting member 67 is provided so as to face the first light source 41 and the second reflector 49. The reflecting member 67 itself is appropriately bent so that the direct light of the first light source 41 can be suitably guided to the second reflector 49, and is not a plane mirror. The reflecting member 67 corresponds to an auxiliary reflector in the present invention.
　次に、実施例２に係る前照灯６１の動作について、ロービームの点灯時とハイビームの点灯時とに分けて説明する。実施例１と同様の動作については、簡略に説明する。 Next, the operation of the headlamp 61 according to the second embodiment will be described separately when the low beam is turned on and when the high beam is turned on. Operations similar to those of the first embodiment will be briefly described.
　２．１．ロービームの点灯時
　図示するように、第１光源４１が発光すると、第１光源４１の直接光は、主として第１リフレクタ４７に向かって進む。第１リフレクタ４７は第１光源４１の光を反射する。これにより、第１リフレクタ４７は、ロービームＬを照射する。ロービームＬは、アウターレンズ３３を透過して前照灯６１に前方に進み、自動二輪車１の前方を照らす。このとき、第１リフレクタ４７自体は、照らされたように明るくなる。 2.1. As shown in the drawing, when the first light source 41 emits light, the direct light of the first light source 41 mainly travels toward the first reflector 47. The first reflector 47 reflects the light from the first light source 41. Thereby, the first reflector 47 emits the low beam L. The low beam L passes through the outer lens 33 and travels forward to the headlamp 61 to illuminate the front of the motorcycle 1. At this time, the first reflector 47 itself becomes bright as if illuminated.
　また、第１光源４１の直接光のうち、第１リフレクタ４７から外れた光は、反射部材６７に入射する。反射部材６７は、第１光源４１の光を第２リフレクタ４９に向けて反射する。このように反射部材６７によって導かれた光は、第２リフレクタ４９に入射する。第２リフレクタ４９は入射した光を反射し、前方に向けて補助ビームＳを照射する。補助ビームＳは、アウターレンズ３３を透過して前照灯６１の前方に進み、手前側の路面を照らす。このとき、第２リフレクタ４９自体は、照らされたように明るくなる。 Of the direct light from the first light source 41, the light that is off the first reflector 47 enters the reflecting member 67. The reflection member 67 reflects the light from the first light source 41 toward the second reflector 49. Thus, the light guided by the reflecting member 67 enters the second reflector 49. The second reflector 49 reflects incident light and irradiates the auxiliary beam S forward. The auxiliary beam S passes through the outer lens 33 and travels forward of the headlamp 61 to illuminate the road surface on the near side. At this time, the second reflector 49 itself becomes bright as if illuminated.
　ここで、反射部材６７によって導かれる光は、第２光源（すなわち、第２リフレクタ４９の焦点近傍）よりも後方の位置から第２リフレクタ４９に入射する。このため、第２リフレクタ４９が照射する補助ビームＳは、ハイビームよりも下方に傾斜した方向に進む。 Here, the light guided by the reflecting member 67 enters the second reflector 49 from a position behind the second light source (that is, near the focal point of the second reflector 49). For this reason, the auxiliary beam S irradiated by the second reflector 49 proceeds in a direction inclined downward from the high beam.
　本実施例では、図１３に示すように、補助ビームＳが、さらにロービームＬよりも下方に傾斜した方向に進むように設定されている。また、本実施例では、補助ビームＳが、領域Ａ２および領域Ａ３の双方に向けて進むように設定されている。なお、図１３では、符号「Ａ２」、「Ａ３」を省略している。 In this embodiment, as shown in FIG. 13, the auxiliary beam S is set to travel in a direction inclined further downward than the low beam L. In the present embodiment, the auxiliary beam S is set so as to travel toward both the area A2 and the area A3. In FIG. 13, the symbols “A2” and “A3” are omitted.
　２．２．ハイビームの点灯時
　第２光源４４が発光すると、第２光源４４の直接光は、第２リフレクタ４９に向かって進む。第２リフレクタ４９は第２光源４４の光を反射する。これにより、第２リフレクタ４９は、ハイビームを照射する（図示省略）。 2.2. When the second light source 44 emits light when the high beam is turned on, direct light from the second light source 44 travels toward the second reflector 49. The second reflector 49 reflects the light from the second light source 44. Thereby, the 2nd reflector 49 irradiates a high beam (illustration omitted).
　このように、実施例２に係る前照灯６１によれば、ロービームＬの点灯時に、第１リフレクタ４７自体が、照らされたように明るくなるとともに、第２リフレクタ４９自体も照らされたように明るくなる。よって、第１リフレクタ４７を大きくすることなく、前照灯６１の被視認性を向上させることができる。 Thus, according to the headlamp 61 according to the second embodiment, when the low beam L is turned on, the first reflector 47 itself is brightened as if illuminated, and the second reflector 49 itself is also illuminated. It becomes brighter. Therefore, the visibility of the headlamp 61 can be improved without increasing the size of the first reflector 47.
　また、本実施例では、第１光源４１はその発光面４２ａが上向きとなるように設置され、第２光源４４はその発光面４５ａが下向きとなるように設置されている。このような配置の場合には、平面視で第１光源４１および第２光源４４の後方に配置される反射部材６７を備えることによって、第１光源４１の光を第２リフレクタ４９へ好適に導くことができる。また、このように配置される反射部材６７によれば、ハイビームの方向よりも下方に傾斜した方向に補助ビームＳを容易させることができる。したがって、補助ビームＳが、歩行者や対向車に対してまぶしく感じられることを防止できる。 In the present embodiment, the first light source 41 is installed such that the light emitting surface 42a faces upward, and the second light source 44 is installed such that the light emitting surface 45a faces downward. In the case of such an arrangement, the light of the first light source 41 is suitably guided to the second reflector 49 by including the reflecting member 67 disposed behind the first light source 41 and the second light source 44 in plan view. be able to. Further, according to the reflecting member 67 arranged in this way, the auxiliary beam S can be easily made in a direction inclined downward from the direction of the high beam. Therefore, it is possible to prevent the auxiliary beam S from being dazzled by pedestrians and oncoming vehicles.
　また、反射部材６７の反射面は屈曲しているので、第１光源４１の光を好適に第２リフレクタ４９に導くことができる。また、反射部材６７は、前側に向かって高くなるような傾斜を基調としているので、反射部材６７はその下方に位置する第２リフレクタ４９に向けて第１光源４１の光を反射することができる。 Further, since the reflecting surface of the reflecting member 67 is bent, the light from the first light source 41 can be suitably guided to the second reflector 49. Further, since the reflecting member 67 is based on an inclination that becomes higher toward the front side, the reflecting member 67 can reflect the light of the first light source 41 toward the second reflector 49 located below the reflecting member 67. .
　（実施例３）
　以下、図面を参照して本発明の実施例３を説明する。実施例３の自動二輪車１の全体構成等は実施例１と略同様であるので、その説明を省略する。実施例３では前照灯の構造が実施例１と異なるので、以下では前照灯について説明する。なお、実施例１と同じ構成については同符号を付すことで詳細な説明を省略する。 (Example 3)
Embodiment 3 of the present invention will be described below with reference to the drawings. Since the overall configuration of the motorcycle 1 of the third embodiment is substantially the same as that of the first embodiment, the description thereof is omitted. Since the structure of the headlamp is different from that of the first embodiment in the third embodiment, the headlamp will be described below. In addition, about the same structure as Example 1, detailed description is abbreviate | omitted by attaching | subjecting the same code | symbol.
　１．前照灯７１の構成
　図１４は、実施例３に係る前照灯の筐体内部を示す要部斜視図である。図１５は、実施例３に係る前照灯の筐体内部を示す要部側面図である。なお、図１４、図１５では、筐体およびアウターレンズ等の図示を省略している。また、図１５では、便宜上、その中央で切断した第１リフレクタ４７の半分、及び、その中央で切断した第２リフレクタ４９の半分をそれぞれ図示している。図１５では、図面の左側が前照灯７１の前側であり、図面の上側が前照灯７１の上側であり、紙面に対して垂直な方向が前照灯７１の横方向である。 1. Configuration of Headlamp 71 FIG. 14 is a perspective view of the main part showing the inside of the casing of the headlamp according to the third embodiment. FIG. 15 is a main part side view showing the inside of the housing of the headlamp according to the third embodiment. In FIGS. 14 and 15, the housing, the outer lens, and the like are not shown. In FIG. 15, for the sake of convenience, a half of the first reflector 47 cut at the center and a half of the second reflector 49 cut at the center are shown. In FIG. 15, the left side of the drawing is the front side of the headlamp 71, the upper side of the drawing is the upper side of the headlamp 71, and the direction perpendicular to the paper surface is the lateral direction of the headlamp 71.
　図示するように、前照灯７１は、第１光源４１、第２光源４４、第１リフレクタ４７および第２リフレクタ４９を備えている。第１光源４１と第２光源４４とは横方向に並ぶように配置されている。第１光源４１は、その発光面４２ａが下向きとなるように設置されている。第２光源４４は、その発光面４５ａが下向きとなるように設置されている。 As illustrated, the headlamp 71 includes a first light source 41, a second light source 44, a first reflector 47, and a second reflector 49. The 1st light source 41 and the 2nd light source 44 are arrange | positioned so that it may rank with a horizontal direction. The first light source 41 is installed such that the light emitting surface 42a faces downward. The second light source 44 is installed such that the light emitting surface 45a faces downward.
　第１リフレクタ４７は、第１光源４１の下方に配置されている。第１リフレクタ４７は、第１光源４１の位置またはその近傍を焦点とする。第２リフレクタ４９は、第２光源４４の下方に配置されている。この第２リフレクタ４９は、第２光源４４の位置またはその近傍を焦点とする。 The first reflector 47 is disposed below the first light source 41. The first reflector 47 is focused on the position of the first light source 41 or the vicinity thereof. The second reflector 49 is disposed below the second light source 44. The second reflector 49 is focused on the position of the second light source 44 or the vicinity thereof.
　前照灯７１は、さらに第１反射部材７５と第２反射部材７７とを備えている。第１反射部材７５は、平面視で第１光源４１の後方に配置されている。第１反射部材７５は、第１リフレクタ４７の上方であって、第１リフレクタ４７の後端４７ａに近接した位置に配置されている。また、第１反射部材７５は、第１光源４１と第２反射部材７７の双方に臨むように傾斜している。 The headlamp 71 further includes a first reflecting member 75 and a second reflecting member 77. The first reflecting member 75 is disposed behind the first light source 41 in plan view. The first reflecting member 75 is disposed above the first reflector 47 and at a position close to the rear end 47 a of the first reflector 47. The first reflecting member 75 is inclined so as to face both the first light source 41 and the second reflecting member 77.
　第１反射部材７５は、第１光源４１の位置またはその近傍を焦点とする。さらに、第１反射部材７５自体は放物面鏡である。このため、第１反射部材７５は、第１光源４１の直接光を反射して、略平行な光（以下、「平行光」という）を第２反射部材７７に向けて照射可能である。第１反射部材７５は、本発明における第１補助リフレクタに相当する。 The first reflecting member 75 is focused on the position of the first light source 41 or the vicinity thereof. Further, the first reflecting member 75 itself is a parabolic mirror. For this reason, the first reflecting member 75 can reflect the direct light of the first light source 41 and irradiate the second reflecting member 77 with substantially parallel light (hereinafter referred to as “parallel light”). The first reflecting member 75 corresponds to the first auxiliary reflector in the present invention.
　第２反射部材７７は、平面視で第２光源４４の後方に配置されている。第２反射部材７７は、第２リフレクタ４９の上方に配置される。第２反射部材７７は、第２リフレクタ４９および第１反射部材７５の双方に臨むように傾斜している。 The second reflecting member 77 is disposed behind the second light source 44 in plan view. The second reflecting member 77 is disposed above the second reflector 49. The second reflecting member 77 is inclined so as to face both the second reflector 49 and the first reflecting member 75.
　第２反射部材７７は平面鏡である。第２反射部材７７は、第１反射部材７５によって導かれた平行光を、第２リフレクタ４９に向けて反射する。第２反射部材７７は、本発明における第２反射部材に相当する。 The second reflecting member 77 is a plane mirror. The second reflecting member 77 reflects the parallel light guided by the first reflecting member 75 toward the second reflector 49. The second reflecting member 77 corresponds to the second reflecting member in the present invention.
　次に、実施例３に係る前照灯７１の動作について説明する。なお、ハイビームの点灯時の動作は、実施例１、２と同様であるので、その説明を省略する。以下では、ロービームの点灯時のみについて説明する。 Next, the operation of the headlamp 71 according to the third embodiment will be described. Since the operation when the high beam is turned on is the same as in the first and second embodiments, the description thereof is omitted. Hereinafter, only when the low beam is turned on will be described.
　２．ロービームの点灯時
　第１光源４１が発光すると、第１光源４１の直接光は、主として第１リフレクタ４７に向かって進む。第１リフレクタ４７は第１光源４１の光を反射する。これにより、第１リフレクタ４７は、ロービームＬを照射する。このとき、第１リフレクタ４７自体は、照らされたように明るくなる。 2. When the first light source 41 emits light when the low beam is turned on, the direct light of the first light source 41 mainly travels toward the first reflector 47. The first reflector 47 reflects the light from the first light source 41. Thereby, the first reflector 47 emits the low beam L. At this time, the first reflector 47 itself becomes bright as if illuminated.
　また、第１光源４１の直接光のうち、第１リフレクタ４７から外れた光は、第１反射部材７５に入射する。第１反射部材７５は、第１光源４１の光を反射して、第２反射部材７７に向けて光を照射する。第２反射部材７７は、第１反射部材７５によって導かれた光を反射し、第２リフレクタ４９に向けて光を照射する。第２リフレクタ４９は、第２反射部材７７によって導かれた光を反射し、前方に向けて補助ビームＳを照射する。このとき、第２リフレクタ４９自体は、照らされたように明るくなる。 Further, out of the direct light of the first light source 41, the light that is removed from the first reflector 47 enters the first reflecting member 75. The first reflecting member 75 reflects the light from the first light source 41 and irradiates the light toward the second reflecting member 77. The second reflecting member 77 reflects the light guided by the first reflecting member 75 and irradiates the light toward the second reflector 49. The second reflector 49 reflects the light guided by the second reflecting member 77 and irradiates the auxiliary beam S forward. At this time, the second reflector 49 itself becomes bright as if illuminated.
　ここで、第２反射部材７７によって導かれる光は、第２光源（すなわち、第２リフレクタ４９の焦点近傍）よりも後方の位置から第２リフレクタ４９に入射する。このため、第２リフレクタ４９が照射する補助ビームＳは、ハイビームよりも下方に傾斜した方向に進む。図１５では、さらに、ロービームＬよりも下方に傾斜した方向に進む補助ビームＳを例示している。 Here, the light guided by the second reflecting member 77 is incident on the second reflector 49 from a position behind the second light source (that is, near the focal point of the second reflector 49). For this reason, the auxiliary beam S irradiated by the second reflector 49 proceeds in a direction inclined downward from the high beam. FIG. 15 further illustrates an auxiliary beam S that travels in a direction inclined downward from the low beam L.
　このように、実施例３に係る前照灯７１によれば、ロービームＬの点灯時に、第１リフレクタ４７自体が、照らされたように明るくなる。また、第２リフレクタ４９も、第１反射部材７５および第２反射部材７７によって導かれた光によって照らされたように明るくなる。よって、前照灯７１の被視認性を向上させることができる。 Thus, according to the headlamp 71 according to the third embodiment, when the low beam L is turned on, the first reflector 47 itself becomes bright as if illuminated. The second reflector 49 also becomes bright as if illuminated by the light guided by the first reflecting member 75 and the second reflecting member 77. Therefore, the visibility of the headlamp 71 can be improved.
　また、本実施例では、第１光源４１および第２光源４４はいずれも、それらの発光面４２ａ、４５ａが下向きとなるように設置されている。このような配置の場合には、第１反射部材７５および第２反射部材７７を含んで構成される補助リフレクタによって、第１リフレクタ４７から外れた第１光源４１の光を第２リフレクタ４９に好適に導くことができる。 In the present embodiment, both the first light source 41 and the second light source 44 are installed such that their light emitting surfaces 42a and 45a face downward. In the case of such an arrangement, the light of the first light source 41 that is out of the first reflector 47 is suitable for the second reflector 49 by the auxiliary reflector that includes the first reflecting member 75 and the second reflecting member 77. Can lead to.
　また、第１反射部材７５は放物面鏡であるので、第１光源４１の光を反射すると、平行光を照射可能である。よって、第１反射部材７５は、第１リフレクタ４７から外れた第１光源４１の光を第２反射部材７７に好適に導くことができる。 In addition, since the first reflecting member 75 is a parabolic mirror, when the light from the first light source 41 is reflected, parallel light can be irradiated. Therefore, the first reflecting member 75 can suitably guide the light of the first light source 41 that has been removed from the first reflector 47 to the second reflecting member 77.
　本発明は、上記実施形態に限られることはなく、下記のように変形実施することができる。 The present invention is not limited to the above embodiment, and can be modified as follows.
　（１）上述した各実施例１－３では、光回収部材は、光を反射する部材（５１ａ、６７、７５、７７）を含んで構成されていたが、これに限られない。たとえば、光を反射する部材に代えて、導光体を含んで構成される光回収部材に変更してもよい。すなわち、光回収部材は、第１リフレクタ４７から外れた第１光源４１の光を受光して伝搬し、第２リフレクタ４９に向けて放射する導光体であってもよい。導光体としては、光ファイバ、アクリル板、または、アクリル棒等が例示される。このような変形例によれば、第１光源４１および第２リフレクタ４９等の配置に関わらず、柔軟に光回収部材を設置することができる。 (1) In each of the embodiments 1-3 described above, the light recovery member is configured to include the member (51a, 67, 75, 77) that reflects light, but is not limited thereto. For example, instead of a member that reflects light, a light recovery member that includes a light guide may be used. That is, the light recovery member may be a light guide that receives and propagates the light from the first light source 41 that is removed from the first reflector 47 and emits the light toward the second reflector 49. Examples of the light guide include an optical fiber, an acrylic plate, or an acrylic rod. According to such a modification, the light recovery member can be flexibly installed regardless of the arrangement of the first light source 41, the second reflector 49, and the like.
　（２）上述した各実施例１－３では、第１リフレクタ４７、第２リフレクタ４９は、それぞれ分割された複数の反射面４７ｂ／４９ｂによって構成されていたが、これに限られない。たとえば、第１リフレクタ４７、および、第２リフレクタ４９を放物面鏡に変更してもよい。あるいは、第１リフレクタ４７、および、第２リフレクタ４９を滑らかに連続する単一の曲面によって構成してもよい。 (2) In each of the embodiments 1-3 described above, the first reflector 47 and the second reflector 49 are configured by the plurality of divided reflection surfaces 47b / 49b, but the present invention is not limited thereto. For example, the first reflector 47 and the second reflector 49 may be changed to parabolic mirrors. Or you may comprise the 1st reflector 47 and the 2nd reflector 49 by the single curved surface which continues smoothly.
　（３）上述した実施例１では、アウターレンズ３３の散乱部３４は、凸部３４ａによって構成されていたが、これに限られない。たとえば、磨りガラスや散乱シート等で散乱部３４を構成してもよい。 (3) In Example 1 mentioned above, although the scattering part 34 of the outer lens 33 was comprised by the convex part 34a, it is not restricted to this. For example, you may comprise the scattering part 34 with polished glass, a scattering sheet, etc.
　（４）上述した各実施例１－３では、補助ビームＳがロービームＬより下方に傾斜した方向に進むことを例示したが、これに限られない。たとえば、補助ビームＳの向きを、ロービームＬと同じ方向に変更してもよい。これによれば、補助ビームＳによって、ロービームＬが路面Ｇを照らす範囲ＬＡをより明るく照らすことができる。また、補助ビームＳの向きをハイビームＨよりも下方に傾斜した方向、あるいは、水平方向よりも下方に傾斜した方向に変更してもよい。これによれば、歩行者等を眩惑させることを防止できる。 (4) In each of the above-described first to third embodiments, the auxiliary beam S travels in a direction inclined downward from the low beam L. However, the present invention is not limited to this. For example, the direction of the auxiliary beam S may be changed to the same direction as the low beam L. According to this, the range LA where the low beam L illuminates the road surface G can be illuminated more brightly by the auxiliary beam S. Further, the direction of the auxiliary beam S may be changed to a direction inclined downward from the high beam H or a direction inclined downward from the horizontal direction. According to this, it can prevent a pedestrian etc. from being dazzled.
　（５）また、上述した実施例１では、補助ビームＳが第２領域Ｂに向けて進むように設定されていたが、これに限られない。すなわち、補助ビームＳは前方（すなわち、アウターレンズ３３）に向けて進むように設定されていれば、補助ビームＳを有効に活用することができる。 (5) In the above-described first embodiment, the auxiliary beam S is set to travel toward the second region B. However, the present invention is not limited to this. That is, if the auxiliary beam S is set to travel forward (that is, the outer lens 33), the auxiliary beam S can be used effectively.
　例えば、補助ビームＳがアウターレンズ３３の第１領域Ａおよび第２領域Ｂの双方に入射するように変更してもよい。この変形例によれば、第１領域Ａに入射した補助ビームＳは、アウターレンズ３３を透過して前照灯１１の前方を照らす。また、第２領域Ｂに入射した補助ビームＳは、第２領域Ｂを面発光させる。このように、前照灯１１の視認性および被視認性の双方を向上させることができる。 For example, the auxiliary beam S may be changed to be incident on both the first area A and the second area B of the outer lens 33. According to this modification, the auxiliary beam S incident on the first area A passes through the outer lens 33 and illuminates the front of the headlamp 11. Further, the auxiliary beam S incident on the second region B causes the second region B to emit light. Thus, both the visibility and visibility of the headlamp 11 can be improved.
　また、補助ビームＳがアウターレンズ３３の第１領域Ａのみに入射するように変更してもよい。この変形例によれば、前照灯１１の視認性を向上させることができる。 Alternatively, the auxiliary beam S may be changed so as to enter only the first region A of the outer lens 33. According to this modification, the visibility of the headlamp 11 can be improved.
　また、補助ビームＳが上述した領域Ａ１、領域Ａ２、および、領域（Ａ３、Ｂ）のいずれか１つまたは２つの領域に入射するように変更してもよい。あるいは、補助ビームＳが少なくとも領域（Ａ３、Ｂ）を含む領域に入射するように変更してもよい。たとえば、補助ビームＳが領域Ａ１と領域（Ａ３、Ｂ）の双方に入射するように変更してもよいし、領域Ａ２と領域（Ａ３、Ｂ）の双方に入射するように変更してもよい。これらの変形例によれば、前照灯１１の視認性および／または被視認性を向上させることができる。 Further, the auxiliary beam S may be changed so as to be incident on any one or two of the above-described region A1, region A2, and region (A3, B). Or you may change so that the auxiliary beam S may inject into the area | region containing an area | region (A3, B) at least. For example, the auxiliary beam S may be changed to be incident on both the region A1 and the region (A3, B), or may be changed so as to be incident on both the region A2 and the region (A3, B). . According to these modified examples, the visibility and / or visibility of the headlamp 11 can be improved.
　また、補助ビームＳが上述した領域Ａ１、領域Ａ２、および、領域Ｂのいずれか１つまたは２つの領域に入射するように変更してもよい。あるいは、補助ビームＳが少なくとも領域Ｂを含む領域に入射するように変更してもよい。たとえば、補助ビームＳが領域Ａ１と領域Ｂの双方に入射するように変更してもよいし、領域Ａ２と領域Ｂの双方に入射するように変更してもよい。これらの変形例によれば、前照灯１１の視認性および／または被視認性を向上させることができる。 Further, the auxiliary beam S may be changed so as to be incident on any one or two of the above-described region A1, region A2, and region B. Or you may change so that the auxiliary beam S may inject into the area | region containing the area | region B at least. For example, the auxiliary beam S may be changed to be incident on both the region A1 and the region B, or may be changed so as to be incident on both the region A2 and the region B. According to these modified examples, the visibility and / or visibility of the headlamp 11 can be improved.
　以下、この変形例を例示して説明する。図１６は、変形例に係る前照灯８１において、ロービームの点灯時の前照灯の動作を説明する模式図である。この変形例では、図１６に示するように、補助ビームＳは、領域Ａ２および領域Ｂの双方に向けて進むように設定されている。領域Ａ２に入射した補助ビームＳは、領域Ａ２を透過して前照灯８１の前方に進み、自動二輪車１の前方を照らす。他方、第２領域Ｂに入射した補助ビームＳは、第２領域Ｂを面発光させる。また、第２領域Ｂに入射した補助ビームＳの一部は、アウターレンズ３３を通過して前照灯８１の前方に進み、手前側の路面を照らす。このように、本変形例によれば、前照灯８１の被視認性および視認性を向上させることができる。 Hereinafter, this modified example will be described as an example. FIG. 16 is a schematic diagram for explaining the operation of the headlamp when the low beam is turned on in the headlamp 81 according to the modification. In this modified example, as shown in FIG. 16, the auxiliary beam S is set so as to travel toward both the area A2 and the area B. The auxiliary beam S that has entered the area A2 passes through the area A2 and travels forward of the headlamp 81 to illuminate the front of the motorcycle 1. On the other hand, the auxiliary beam S incident on the second region B causes the second region B to emit light. In addition, a part of the auxiliary beam S incident on the second region B passes through the outer lens 33 and proceeds in front of the headlamp 81 to illuminate the road surface on the near side. Thus, according to this modification, the visibility and visibility of the headlamp 81 can be improved.
　また、上述した実施例２のように、アウターレンズ３３が第１領域Ａのみで構成されている場合は、次のようになる。すなわち、補助ビームＳが、領域Ａ１、Ａ２、Ａ３のいずれか１つまたは２つの領域に入射するように変更してもよい。あるいは、補助ビームＳが少なくとも領域Ａ３を含む領域に入射するように変更してもよい。例えば、補助ビームＳが領域Ａ１、Ａ３の双方に入射するように変更してもよいし、領域Ａ２、Ａ３の双方に入射するように変更してもよい。これら変形例によれば、前照灯６１の前方を一層明るく照らすことができるので、前照灯６１の視認性を向上させることができる。 Further, as in the second embodiment described above, when the outer lens 33 is configured only by the first region A, the following is performed. That is, the auxiliary beam S may be changed so as to be incident on any one or two of the regions A1, A2, and A3. Or you may change so that the auxiliary beam S may inject into the area | region containing at least area | region A3. For example, the auxiliary beam S may be changed so as to enter both the regions A1 and A3, or may be changed so as to enter both the regions A2 and A3. According to these modified examples, the front of the headlamp 61 can be illuminated more brightly, so that the visibility of the headlamp 61 can be improved.
　（７）上述した実施例１では、領域Ｂ（散乱部３４）に入射した補助ビームＳの一部は、アウターレンズ３３を通過し、前方（範囲ＳＡ）を照らし、視認性を向上させたが、これに限られない。すなわち、領域Ｂ（散乱部３４）に入射した補助ビームＳは、前方の路面を照らさなくよいし、視認性を向上させなくてもよい。換言すれば、散乱部３４は、入射した補助ビームＳの全部を散乱させてもよい。 (7) In Example 1 described above, a part of the auxiliary beam S incident on the region B (scattering portion 34) passes through the outer lens 33, illuminates the front (range SA), and improves the visibility. Not limited to this. That is, the auxiliary beam S incident on the region B (scattering portion 34) does not have to illuminate the road surface ahead and does not need to improve visibility. In other words, the scattering unit 34 may scatter all of the incident auxiliary beam S.
　（８）上述した各実施例において、動力発生装置としてエンジン５を備えていたが、これに限られない。動力発生装置として電動機（モータ）を備えるように変更してもよい。この場合、エンジン５を省略してもよいし、エンジン５と電動機の双方を備えていてもよい。 (8) In each of the above-described embodiments, the engine 5 is provided as a power generation device, but is not limited thereto. You may change so that an electric motor (motor) may be provided as a motive power generator. In this case, the engine 5 may be omitted, or both the engine 5 and the electric motor may be provided.
　（９）上述した各実施例では、単一の前輪１７と単一の後輪２３を備える自動二輪車１を例示したが、これに限られない。例えば、前輪または後輪の一方が２輪である鞍乗型車両であってもよいし、前輪及び後輪の双方が２輪である鞍乗型車両であってもよい。 (9) In each of the above-described embodiments, the motorcycle 1 including the single front wheel 17 and the single rear wheel 23 is illustrated, but the present invention is not limited thereto. For example, it may be a straddle-type vehicle in which one of the front wheels or the rear wheels is two wheels, or a straddle-type vehicle in which both the front wheels and the rear wheels are two wheels.
　（１０）上述した各実施例および上記（１）から（９）で説明した各変形実施例については、さらに各構成を他の変形実施例の構成に置換または組み合わせるなどして適宜に変更してもよい。 (10) About each embodiment mentioned above and each modification example demonstrated in said (1) to (9), each structure is further changed suitably, such as replacing or combining with the structure of another modification example. Also good.
　以上のように、本発明によれば、小型化しても被視認性が高いので、各種の用途に適用できる。 As described above, according to the present invention, even if it is downsized, the visibility is high, so it can be applied to various applications.
　１　…　自動二輪車
　１１、６１、７１、８１　…　前照灯
　３３、６５　…　アウターレンズ
　３４　…　散乱部
　４１　…　第１光源
　４３　…　ＬＥＤ
　４４　…　第２光源
　４６　…　ＬＥＤ
　４７　…　第１リフレクタ
　４９　…　第２リフレクタ
　５１　…　カバー部材
　５１ａ　…　傾斜面（補助リフレクタ）
　６７　…　反射部材（補助リフレクタ）
　７５　…　第１反射部材（第１補助リフレクタ）
　７７　…　第２反射部材（第２補助リフレクタ）
　Ａ　…　第１領域
　Ａ１　…　正面視で第１リフレクタ４７と重なるアウターレンズ３３の領域
　Ａ２　…　正面視で第２リフレクタ４９と重なるアウターレンズ３３の領域
　Ａ３　…　第１領域Ａから領域Ａ１および領域Ａ２を除いた領域
　Ｂ　…　第２領域
　Ｂ１　…　正面視でカバー部材５１と重なるアウターレンズ３３の領域
　Ｌ　…　ロービーム
　Ｓ　…　補助ビーム
　Ｈ　…　ハイビーム
　Ｐ、Ｑ　…　光軸 DESCRIPTION OF SYMBOLS 1 ... Motorcycle 11, 61, 71, 81 ... Headlamp 33, 65 ... Outer lens 34 ... Scattering part 41 ... 1st light source 43 ... LED
44 ... Second light source 46 ... LED
47 ... 1st reflector 49 ... 2nd reflector 51 ... Cover member 51a ... Inclined surface (auxiliary reflector)
67… Reflective member (auxiliary reflector)
75 ... 1st reflecting member (1st auxiliary reflector)
77 ... 2nd reflecting member (2nd auxiliary reflector)
A ... first area A1 ... area of the outer lens 33 overlapping the first reflector 47 in front view A2 ... area of the outer lens 33 overlapping the second reflector 49 in front view A3 ... area A1 and area A2 from the first area A Excluded area B ... 2nd area B1 ... Area of outer lens 33 overlapping cover member 51 in front view L ... Low beam S ... Auxiliary beam H ... High beam P, Q ... Optical axis

Claims (15)

  1. 　ロービームおよびハイビームを照射可能な前照灯であって、
    　ＬＥＤで構成される第１光源と、
    　前記第１光源の位置近傍を焦点とし、前記第１光源の光を反射してロービームを照射するための第１リフレクタと、
    　ＬＥＤで構成される第２光源と、
    　前記第２光源の位置近傍を焦点とし、前記第２光源の光を反射してハイビームを照射するための第２リフレクタと、
    　第１リフレクタから外れた前記第１光源の光を前記第２リフレクタに導く光回収部材と、
    　を備えている前照灯。     A headlamp capable of emitting a low beam and a high beam,
    A first light source composed of LEDs;
    A first reflector for focusing the vicinity of the position of the first light source and reflecting the light of the first light source to irradiate a low beam;
    A second light source composed of LEDs;
    A second reflector for focusing the vicinity of the position of the second light source and reflecting the light of the second light source to irradiate a high beam;
    A light recovery member that guides the light of the first light source that has come off the first reflector to the second reflector;
    Headlights equipped with.
  2. 　請求項１に記載の前照灯において、
    　前記第２リフレクタは、前記光回収部材によって導かれる光を、前方に進むにつれて下方に傾斜する方向に反射する前照灯。     The headlamp according to claim 1,
    The said 2nd reflector is a headlamp which reflects the light guide | induced by the said light collection member in the direction which inclines below as it progresses ahead.
  3. 　請求項１または請求項２に記載の前照灯において、
    　前記第２リフレクタは、前記光回収部材によって導かれる光を、前記ロービームの方向に比べて下方に傾斜する方向に反射する前照灯。     The headlamp according to claim 1 or 2,
    The second reflector is a headlamp that reflects the light guided by the light recovery member in a direction inclined downward as compared to the direction of the low beam.
  4. 　請求項１から請求項３のいずれかに記載の前照灯において、
    　前記光回収部材は、平面視で前記第１光源の後方に配置されている前照灯。     The headlamp according to any one of claims 1 to 3,
    The light recovery member is a headlamp disposed behind the first light source in plan view.
  5. 　請求項１から請求項４のいずれかに記載の前照灯において、
    　前記第２光源は、その光軸が上方を向くように設けられ、
    　前記第２リフレクタは、前記第２光源の上方に配置され、
    　前記光回収部材は、平面視で前記第２光源の前方に配置されている前照灯。     The headlamp according to any one of claims 1 to 4,
    The second light source is provided such that its optical axis faces upward,
    The second reflector is disposed above the second light source,
    The light recovery member is a headlamp disposed in front of the second light source in plan view.
  6. 　請求項５に記載の前照灯において、
    　前記第１光源は、その光軸が下方を向くように、かつ、平面視で前記第２光源の前方に配置され、
    　前記第１リフレクタは前記第１光源の下方に配置され、
    　前記光回収部材は、平面視で前記第１光源と前記第２光源の間に配置されている前照灯。     The headlamp according to claim 5,
    The first light source is disposed in front of the second light source so that its optical axis is directed downward and in plan view,
    The first reflector is disposed below the first light source;
    The light recovery member is a headlamp disposed between the first light source and the second light source in a plan view.
  7. 　請求項５または請求項６に記載の前照灯において、
    　前記第１光源、前記第２光源、及び、前記光回収部材は、正面視で互いに重なるように配置されている前照灯。     The headlamp according to claim 5 or 6,
    The headlamp in which the first light source, the second light source, and the light recovery member are arranged to overlap each other in a front view.
  8. 　請求項５から請求項７のいずれかに記載の前照灯において、
    　前記第１光源は、その光軸が垂直方向に対して後方に傾斜するように設けられ、
    　前記第２光源は、その光軸が垂直方向に対して後方に傾斜するように設けられている前照灯。     The headlamp according to any one of claims 5 to 7,
    The first light source is provided such that its optical axis is inclined backward with respect to the vertical direction,
    The said 2nd light source is a headlamp provided so that the optical axis may incline back with respect to a perpendicular direction.
  9. 　請求項５から請求項８のいずれかに記載の前照灯において、
    　前記光回収部材は、前記第１リフレクタから外れた前記第１光源の光を前記第２リフレクタに向けて反射する補助リフレクタである前照灯。     The headlamp according to any one of claims 5 to 8,
    The headlamp is an auxiliary reflector that reflects the light of the first light source that is detached from the first reflector toward the second reflector.
  10. 　請求項９に記載の前照灯において、
    　前記補助リフレクタは、後側に向かって高くなるように傾斜している反射面を備える前照灯。     The headlamp according to claim 9,
    The auxiliary reflector is a headlamp including a reflecting surface that is inclined so as to become higher toward the rear side.
  11. 　請求項９または請求項１０に記載の前照灯において、
    　前記補助リフレクタは、前記第１リフレクタの後端に近接するように設けられている前照灯。     The headlamp according to claim 9 or 10,
    The auxiliary reflector is a headlamp provided so as to be close to a rear end of the first reflector.
  12. 　請求項９から請求項１１のいずれかに記載の前照灯において、
    　さらに、前記第１光源を支持する支持部材と、
    　前記支持部材を覆うように設けられ、光を反射するカバー部材と、
    　を備え、
    　前記補助リフレクタは、前記カバー部材に形成されている前照灯。     The headlamp according to any one of claims 9 to 11,
    A support member for supporting the first light source;
    A cover member provided to cover the support member and reflecting light;
    With
    The auxiliary reflector is a headlamp formed on the cover member.
  13. 　請求項１から請求項１２のいずれかに記載の前照灯において、
    　前記第１リフレクタおよび前記第２リフレクタの前方の開口を覆うアウターレンズを、さらに備え、
    　前記第２リフレクタは、前記光回収部材によって導かれる光を前方に向けて反射する前照灯。     The headlamp according to any one of claims 1 to 12,
    An outer lens that covers the front opening of the first reflector and the second reflector, and
    The second reflector is a headlamp that reflects light guided by the light recovery member forward.
  14. 　請求項１３に記載の前照灯において、
    　前記アウターレンズは、正面視で前記第１リフレクタおよび前記第２リフレクタと重ならない前記アウターレンズの領域に形成され、光を散乱させる散乱部を有する前照灯。     The headlamp according to claim 13,
    The said outer lens is a headlamp which is formed in the area | region of the said outer lens which does not overlap with a said 1st reflector and a said 2nd reflector by front view, and has a scattering part which scatters light.
  15. 　請求項１から請求項１４のいずれかに記載の前照灯を備える鞍乗型車両。 A straddle-type vehicle comprising the headlamp according to any one of claims 1 to 14.
PCT/JP2011/003172 2010-11-22 2011-06-06 Headlight and saddled vehicle equipped with same WO2012070169A1 (en)

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