WO2012070169A1

WO2012070169A1 - Headlight and saddled vehicle equipped with same

Info

Publication number: WO2012070169A1
Application number: PCT/JP2011/003172
Authority: WO
Inventors: 山田　剛
Original assignee: ヤマハ発動機株式会社
Priority date: 2010-11-22
Filing date: 2011-06-06
Publication date: 2012-05-31
Also published as: JP2014031026A

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

Headlamp and straddle-type vehicle equipped with the same

The present invention relates to a headlamp and a straddle-type vehicle equipped with the same.

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.

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.

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.

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.

JP 2009-48898 A

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”.

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.

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.

[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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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. 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.

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.

Further, the present invention is a straddle-type vehicle provided with the above-described headlamp.

[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. .

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.

In addition, this specification also discloses the invention concerning the following headlamps.

(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.

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.

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.

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) In the headlamp according to the invention described above, the first reflector is a parabolic mirror.

(3) The headlamp according to the invention described above, wherein the second reflector is a parabolic mirror.

(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) In the headlamp according to the above-described invention, the second reflector is configured by a reflecting surface divided into a plurality of parts.

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) 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.

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) 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.

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) 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.

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) 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.

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) 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.

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) 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.

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) 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) 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).

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) 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) 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) 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).

According to each invention described in the above (14) to (16), the visibility and / or visibility of the headlamp can be improved.

(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) 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.

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) 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) 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) 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.

According to the inventions described in (19) to (21), the visibility and / or visibility of the headlamp can be improved.

(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) 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.

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. .

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.

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.

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.

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.

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 | movement of the headlamp at the time of lighting of a low beam. (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. . It is a schematic diagram explaining operation | movement of the headlamp at the time of lighting of a high beam. (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. It is principal part sectional drawing of the headlamp which concerns on Example 2. 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 | casing of the headlamp which concerns on Example 3. FIG. 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.

Hereinafter, the saddle riding type vehicle of the present invention will be described with reference to the drawings.

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. 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.

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).

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. 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.

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).

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.

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.

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.

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.

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. 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.

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.

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.

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.

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.

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. 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”.

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. 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”.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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”.

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.

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. 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. 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.

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.

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.

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.

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).

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.

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.

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.

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. 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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

(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. 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.

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.

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.

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. 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.

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.

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.

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. 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).

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.

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.

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. .

(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. 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.

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.

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.

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. 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.

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.

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.

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.

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.

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.

The present invention is not limited to the above embodiment, and can be modified as follows.

(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) 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) 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) 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) 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.

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.

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.

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.

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.

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.

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) 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) 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) 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) 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.

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.

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

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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
A straddle-type vehicle comprising the headlamp according to any one of claims 1 to 14.