Head lamp unit and straddle-type vehicle

By employing separate and smaller outer lenses for low beam and high beam in the headlamp unit, the size and weight are reduced, addressing the issue of large outer lenses in existing units and enhancing the vehicle's aesthetics and functionality.

JP2025077406APending Publication Date: 2025-05-19KAWASAKI MOTORS LTD +1
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Patent Information

Application Number
JP2023189585
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-11-06
Publication Date
2025-05-19

AI Technical Summary

Technical Problem

The existing headlamp units for saddle-type vehicles have large outer lenses due to the integration of light sources for high beam and low beam, which increases the size and weight of the unit.

Method used

The headlamp unit features two low beam outer lens portions arranged side by side with a space in between, and one high beam outer lens portion positioned between them, allowing for separate and smaller lenses for each beam type, reducing the overall size and weight.

Benefits of technology

This configuration reduces the size and weight of the headlamp unit while maintaining effective beam illumination, enhancing the aesthetics and functionality of the saddle-type vehicle.

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Abstract

To provide a head lamp unit including a down-sized outer lens and a straddle-type vehicle with such a head lamp unit.SOLUTION: A head lamp unit includes: two low-beam outer lens parts disposed at an interval on the left and right sides and allowing a low beam to penetrate forward; and one high-beam outer lense part disposed on the right side to a left end of the low-beam outer lense part disposed on the left side and on the left side to a right end of the low-beam outer lense part disposed on the right side, disposed at intervals above and below of the two low-beam outer lense parts, and allowing a high beam to penetrate forward.SELECTED DRAWING: Figure 2
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Description

Technical Field

[0001] The present disclosure relates to a headlamp unit and a saddle-type vehicle.

Background Art

[0002] Patent Document 1 discloses a headlamp unit for a saddle-type vehicle provided with an outer lens that lights high beam and low beam.

Prior Art Document

Patent Document

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the headlamp unit described in Patent Document 1, since a light source for irradiating high beam and low beam is included in one outer lens, the size of the outer lens becomes large.

[0005] An object is to provide a headlamp unit having a miniaturized outer lens and a saddle-type vehicle equipped with such a headlamp unit.

Means for Solving the Problems

[0006] The present disclosure is two low beam outer lens portions arranged side by side with a space therebetween and transmitting low beam forward, and one high beam outer lens portion arranged on the right side with respect to the left end of the low beam outer lens portion arranged on the left side and on the left side with respect to the right end of the low beam outer lens portion arranged on the right side, and arranged with a space above or below the two low beam outer lens portions and transmitting high beam forward Provided is a headlamp unit including

[0007] According to the headlamp unit according to the present disclosure, one high-beam outer lens part is arranged between the left and right low-beam outer lens parts in the left-right direction, and is arranged at an interval above or below the low-beam outer lens part, and the lens part for low beam and the lens part for high beam are different. Therefore, since it is not necessary to accommodate respective light sources for irradiating high beam and low beam in one lens part, the size of each outer lens part can be reduced.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Embodiments for Carrying Out the Invention

[0009] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. Note that the drawings may be drawn with some parts simplified for ease of understanding.

[0010] FIG. 1 is a front side view of a saddle-type vehicle 100 equipped with a headlamp unit 1 according to the present embodiment. In this specification, "front", "rear", "left" and "right" refer to the front direction, rear direction, left direction and right direction as viewed from a driver who rides on and drives the saddle-type vehicle 100. Also, the height direction of the saddle-type vehicle 100 is defined as the vertical direction. For example, the left-right direction corresponds to the vehicle width direction of the saddle-type vehicle 100.

[0011] The headlamp unit 1 of the present embodiment is a lamp unit for illuminating the front of the saddle-ride type vehicle 100, and is attached to the front side of the saddle-ride type vehicle 100. Further, in the saddle-ride type vehicle 100, an engine serving as a drive source for rotationally driving the drive wheels of the saddle-ride type vehicle 100 and a vehicle body frame for supporting the engine are provided behind the headlamp unit 1. The engine includes a radiator 102 for cooling the heated engine with a refrigerant behind the headlamp unit 1. The saddle-ride type vehicle 100 is further provided with a shroud for guiding the traveling wind to the radiator 102.

[0012] The headlamp unit 1 of the present embodiment is supported by a bracket that supports the front fork. The headlamp unit 1 is angularly displaced with respect to the vehicle body frame together with the front fork as the handlebar is steered. The headlamp unit 1 of the present embodiment can be arranged closer to the front fork compared to the case where it is fixed to the vehicle body frame. As a result, the front-rear dimension of the headlamp unit 1 can be reduced and the weight can be reduced. The shape of the headlamp unit may preferably be smaller. Further, the front end of the headlamp unit 1 of the present embodiment is located behind the front wheel.

[0013] The vertical dimension of the headlamp unit 1 gradually increases from the front end toward the rear. Further, the left-right dimension of the headlamp unit 1 gradually increases from the front end toward the rear (see FIG. 3).

[0014] FIG. 2 is a front view of the headlamp unit 1. The headlamp unit 1 includes a headlamp 2 and an upper cowl 3 that covers the headlamp 2. An outer lens 12 for transmitting light forward is attached to the headlamp 2. The material of the outer lens 12 is a light-transmissive material, specifically, a transparent resin. The upper cowl 3 is opaque and covers the region of the headlamp 2 excluding the outer lens 12.

[0015] The outer lens 12 has three parts. Specifically, the outer lens 12 has two low-beam outer lens parts 12a that transmit low beams forward and one high-beam outer lens part 12b that transmits high beams forward. Each low-beam outer lens part 12a and high-beam outer lens part 12b is formed separately and is arranged at intervals from each other.

[0016] The low beam is a passing headlight, for example, light that is irradiated in front of the vehicle so that traffic obstacles at a distance of 40 m ahead can be confirmed at night. The high beam is a driving headlight, for example, light that is irradiated in front of the vehicle so that traffic obstacles at a distance of 100 m ahead can be confirmed at night. Thus, the irradiation direction of the high beam is set so that obstacles farther away can be confirmed compared to the low beam. During driving, the low beam is always on, and the high beam is appropriately turned on by the driver's operation.

[0017] The two low-beam outer lens parts 12a are arranged side by side on the left and right, spaced apart in the left-right direction, and are arranged symmetrically with respect to the left-right center C1 of the headlamp 2 (the center line passing through the midpoint between the left end and the right end of the front housing 10 constituting the headlamp 2). The two low-beam outer lens parts 12a are arranged passing through the vertical center C2 of the headlamp 2 (the center line passing through the midpoint between the upper end and the lower end of the front housing 10). In other words, the vertical center C2 of the headlamp is located between the upper edges 12a1, 12a2 and the lower edge 12a4 of the low-beam outer lens part 12a. In a front view, the low-beam outer lens part 12a has a first upper edge 12a1 that slopes upward from the inner side to the outer side in the left-right direction. The lower edge 12a4 of the low-beam outer lens part 12a also slopes upward from the inner side to the outer side in the left-right direction.

[0018] The high-beam outer lens portion 12b is located between the two low-beam outer lens portions 12a in the left-right direction. The high-beam outer lens portion 12b is arranged symmetrically with respect to the left-right center C1 of the headlamp 2. Specifically, the high-beam outer lens portion 12b is arranged on the right side with respect to the left end of the low-beam outer lens portion 12a arranged on the left side, and on the left side with respect to the right end of the low-beam outer lens portion 12a arranged on the right side, and is arranged at a downward interval with respect to the lower ends of the two low-beam outer lens portions 12a.

[0019] More specifically, the upper edge 12b1 of the high-beam outer lens portion 12b is located on the right side with respect to the right end of the lower edge 12a4 of the low-beam outer lens portion 12a arranged on the left side, and on the left side with respect to the left end of the lower edge 12a4 of the low-beam outer lens portion 12a arranged on the right side. Further, the upper edge 12b1 of the high-beam outer lens portion 12b is located below the lower edges 12a4 of the two low-beam outer lens portions 12a.

[0020] Also, the outer ends of the high-beam outer lens portion 12b in the left-right direction are located on the outer side in the left-right direction with respect to the inner ends of the low-beam outer lens portion 12a in the left-right direction. That is, in a top view, the high-beam outer lens portion 12b has a portion that overlaps with the two low-beam outer lens portions 12a in the left-right direction. In a front view, the upper edge 12b1 and the lower edge 12b4 of the high-beam outer lens portion 12b extend parallel to each other in the left-right direction.

[0021] The low-beam outer lens portion 12a is substantially pentagonal in a front view, and a pentagon is formed by a first upper edge 12a1 on the left-right center C1 side of the headlamp, a second upper edge 12a2 on the side opposite to the left-right center C1, a first side edge 12a3 on the side opposite to the left-right center C1, a lower edge 12a4, and a second side edge 12a5 on the left-right center C1 side.

[0022] The second side edge 12a5 slopes upward from the outer side to the inner side in the left-right direction. Therefore, the angle between the first upper edge 12a1 and the second side edge 12a5 is an acute angle. Accordingly, the vertical dimension in the outer side in the left-right direction (the vertical distance between the first upper edge 12a1 and the lower edge 12a4) is larger than the vertical dimension in the inner side in the left-right direction of the low beam outer lens portion 12a (the vertical distance between the first upper edge 12a1 and the second side edge 12a5). Further, in the low beam outer lens portion 12a, a region is formed which is arranged on the outer side in the left-right direction with respect to the high beam outer lens portion 12b, and the vertical dimension of that region is larger than the vertical dimension of the high beam outer lens portion 12b. Thereby, the low beam outer lens portion 12a can irradiate light more easily toward the outer side in the left-right direction than the high beam outer lens portion 12b.

[0023] The high beam outer lens portion 12b is substantially hexagonal in a front view, and a hexagon is formed by an upper edge 12b1, two upper side edges 12b2, two lower side edges 12b3, and a lower edge 12b4. Further, the midpoint of the upper edge 12b1 and the midpoint of the lower edge 12b4 are located at the left-right center C1, and the center position of the high beam outer lens portion 12b coincides with the left-right center C1. Since the high beam outer lens portion 12b is arranged closer to the left-right center C1 in this way, it is easier to irradiate light toward a relatively distant region in front of the traveling direction than the low beam outer lens portion 12a.

[0024] The upper side edge 12b2 of the high beam outer lens portion 12b slopes downward toward the outer side in the left-right direction, and the inclination direction is the same as the inclination direction of the second side edge 12a5 of the low beam outer lens portion 12a. By inclining these side edges 12b2, 12a5 in the same direction, it is easy to secure an interval along the inclination direction between the respective side edges 12b2, 12a5, and it is easy to arrange the upper cowl 3 between the low beam outer lens portion 12a and the high beam outer lens portion 12b.

[0025] In a front view, the area of the high beam outer lens portion 12b is smaller than the area of each low beam outer lens portion 12a.

[0026] In FIG. 1, the front end of the high beam outer lens portion 12b is disposed rearward with respect to the front end of the low beam outer lens portion 12a. Further, the high beam outer lens portion 12b is inclined downward from the front end toward the rear, forming a so-called reverse slant shape. For this reason, when the traveling wind during the running of the saddle-ride type vehicle 100 collides with the high beam outer lens portion 12b, it is guided rearward and downward along the inclination of the high beam outer lens portion 12b. In this case, the traveling wind is guided toward the radiator 102 located rearward and downward of the headlamp unit 1. Thereby, the traveling wind can be actively guided to the radiator 102.

[0027] The low beam outer lens portion 12a is also inclined downward from the front end toward the rear, forming a so-called reverse slant shape. Thereby, the low beam outer lens portion 12a can be made less conspicuous. Further, when the traveling wind during the running of the saddle-ride type vehicle 100 collides with the low beam outer lens portion 12a, it is guided downward and outward in the left-right direction along the inclination of the low beam outer lens portion 12a. For this reason, the traveling wind is prevented from going upward of the headlamp unit 1. Therefore, the flow of the traveling wind toward the driver along the upper surface of the headlamp can be suppressed.

[0028] FIG. 3 is a view of the headlamp unit 1 seen obliquely from above. In FIG. 3, the low beam outer lens portion 12a is inclined rearward from the inner end in the left-right direction toward the outer side in the left-right direction. The headlamp 2 and the upper cowl 3 are similarly inclined rearward from the inner side in the left-right direction toward the outer side in the left-right direction. Further, the upper surfaces of the headlamp 2 and the upper cowl 3 are inclined upward from the front end toward the rear. Thereby, the shape of the headlamp unit 1 as the saddle-ride type vehicle 100 can be made closer to a streamline shape that guides the traveling wind rearward.

[0029] The low beam outer lens portion 12a extends in the left - right vertical direction and the front - rear vertical direction. In other words, in the low beam outer lens portion 12a, a main inclined surface 12a6 is formed which inclines outward in the left - right direction from the front end toward the rear, and inclines rearward downward from the upper edges 12a1, 12a2. The main inclined surface 12a6 is a flat surface having a larger area than the remaining surfaces among the surfaces constituting the low beam outer lens portion 12a. The main inclined surface 12a6 is the portion through which the low beam passes.

[0030] The high beam outer lens portion 12b extends in the left - right vertical direction. In other words, in the high beam outer lens portion 12b, a main inclined surface 12b5 is formed which extends in the left - right direction and inclines rearward downward from the upper edge 12b1. The main inclined surface 12b5 is the portion through which the high beam passes.

[0031] In FIG. 2, the upper cowl 3 has a first upper cowl 30 covering the upper part of the headlamp 2 and a second upper cowl 31 covering the lower part of the headlamp 2.

[0032] The first upper cowl 30 is arranged along the upper edges 12a1, 12a2 of the low beam outer lens portion 12a, and the second upper cowl 31 is arranged along the side edges 12a3, 12a5 and the lower edge 12a4 of the low beam outer lens portion 12a.

[0033] The front end of the first upper cowl 30 is positioned in front of the front end of the low beam outer lens portion 12a. Specifically, the front end of the first upper cowl 30 protrudes forward along the upper edges 12a1, 12a2 of the low beam outer lens portion 12a. Thereby, when the headlamp unit 1 is visually observed from above, it is possible to suppress the exposure of the low beam outer lens portion 12a.

[0034] As shown in FIG. 3, the second upper cowl 31 has a first protruding portion 31a that protrudes forward from the second side edge 12a5 of the low beam outer lens portion 12a along the upper edge 12b1 of the high beam outer lens portion 12b, and left and right pairs that protrude forward from the lower edge 12a4 of the low beam outer lens portion 12a along the left and right side edges 12b2, 12b3 of the high beam outer lens portion 12b. of the second protruding portion 31b.

[0035] The first protruding portion 31a covers the high beam outer lens portion 12b from above in a top view, and the second protruding portion 31b covers the high beam outer lens portion 12b from the side in a side view. In other words, the high beam outer lens portion 12b is disposed rearward with respect to the front end of the second upper cowl 31. Specifically, the high beam outer lens portion 12b is disposed rearward with respect to the first protruding portion 31a. The high beam outer lens portion 12b is also disposed rearward with respect to the left and right second protruding portions 31b. As a result, in a top view and a side view, the high beam outer lens portion 12b is prevented from being exposed by the upper cowl 3.

[0036] The first protruding portion 31a and the second protruding portion 31b of the present embodiment protrude forward with respect to the low beam outer lens portion 12a. Thereby, compared with the case where the first protruding portion 31a and the second protruding portion 31b do not protrude with respect to the low beam outer lens portion 12a, the exposure of the high beam outer lens portion 12b can be further suppressed. For example, external light such as sunlight and streetlights can be made less likely to enter the high beam outer lens portion 12b.

[0037] Among the second upper cowl 31, the portions covering the regions between the second side edge 12a5 of the low beam outer lens portion 12a and the upper side edge 12b2 of the high beam outer lens portion 12b extend along the respective side edges 12b2, 12a5. Thereby, it is possible to suppress a decrease in the width in the direction between the respective side edges 12b2 and 12a5, and it is possible to easily project the portion forward from the low beam outer lens portion 12a.

[0038] The second upper cowl 31 further has a third protruding portion 31c that protrudes forward along the lower edge 12b4 of the high beam outer lens portion 12b. The amount of forward protrusion of the third protruding portion 31c is smaller than the amount of forward protrusion of the first protruding portion 31a. Thereby, it is possible to suppress the oncoming wind that has collided with the high beam outer lens portion 12b from escaping upward, and guide the wind toward the radiator 102 located below the headlamp unit 1. Furthermore, since the second protruding portion 31b protrudes from the left and right side edges 12b2, 12b3 of the high beam outer lens portion 12b, it is also possible to suppress the oncoming wind from escaping in the left and right directions.

[0039] The lower surface of the first protruding portion 31a, that is, the surface of the first protruding portion 31a on the high beam outer lens portion 12b side, is inclined downward from the front end toward the rear. Also, the inner surface in the left-right direction of the second protruding portion 31b, that is, the surface of the second protruding portion 31b on the high beam outer lens portion 12b side, is inclined inward in the left-right direction from the front end toward the rear. Thereby, the high beam passing through the high beam outer lens portion 12b is less likely to be blocked by the first protruding portion 31a and the second protruding portion 31b, and the high beam can be irradiated over a wide range.

[0040] In the second upper cowl 31, the portion along the lower edge 12a4 of the low beam outer lens portion 12a is inclined downward toward the front. Also, the portion along the first side edge 12a3 of the low beam outer lens portion 12a is inclined outward in the left-right direction toward the front. Furthermore, the portion along the second side edge 12a5 of the low beam outer lens portion 12a is inclined inward in the left-right direction toward the front. Thereby, the low beam passing through the low beam outer lens portion 12a is less likely to be blocked by these portions, and the low beam can be irradiated over a wide range.

[0041] In FIG. 2, the headlamp 2 has a front housing 10 to which the outer lens 12 is attached and a rear housing 11 attached to the front housing 10.

[0042] Figure 4 is an exploded front view of the headlamp 2 with the front housing 10 and the outer lens 12 removed. In the headlamp 2, there are provided two low-beam reflectors 13 disposed at positions corresponding to the two low-beam outer lens portions 12a in a front view, and one high-beam reflector 20 disposed at a position corresponding to the one high-beam outer lens portion 12b in a front view.

[0043] The low-beam reflector 13 has the same shape as the low-beam outer lens portion 12a, the upper edge is inclined downward toward the left and right center C1, and the side edges on the left and right center C1 side are inclined upward toward the left and right center C1.

[0044] On the upper parts of the two low-beam reflectors 13, there are respectively provided low-beam light sources 14 for irradiating light for low-beam toward the low-beam reflectors. The low-beam light source 14 is provided with a low-beam substrate for supplying power to the low-beam light source 14 and a low-beam heat sink for cooling the low-beam substrate.

[0045] When the low-beam light source 14 irradiates light for low-beam toward the low-beam reflector 13, the low-beam reflector 13 reflects the light for low-beam forward as a low-beam. The low-beam reflected forward by the low-beam reflector 13 passes through the low-beam outer lens portion 12a and irradiates the front of the straddle-type vehicle 100.

[0046] On the upper parts of the two low-beam reflectors 13, there are further respectively provided position lamps 18 on the inner side in the left and right direction with respect to the low-beam light sources 14. Thereby, the low-beam outer lens portion 12a can be made smaller as compared with the case where the position lamp 18 is provided on the outer side in the left and right direction of the upper part of the low-beam reflector 13. The position lamp is a lamp for notifying the presence of the straddle-type vehicle.

[0047] On the upper part of the high beam reflector 20, high beam light sources 21 for irradiating light for high beam toward the high beam reflector 20 are provided side by side on the left and right. The high beam light sources 21 are provided with a high beam substrate for supplying power to the high beam light sources 21 and a high beam heat sink for cooling the high beam substrate. The low beam light source 14 and the high beam light source 21 in the present embodiment are LEDs.

[0048] When the high beam light source 21 irradiates light for high beam toward the high beam reflector 20, the high beam reflector 20 reflects the light for high beam forward as a high beam. The high beam reflected forward by the high beam reflector 20 passes through the high beam outer lens portion 12b and irradiates the front of the straddle-type vehicle 100.

[0049] The high beam light source 21 is arranged on the right side with respect to the left end of the low beam reflector 13 arranged on the left side and on the left side with respect to the right end of the low beam reflector 13 arranged on the right side in a front view, and is arranged between the two low beam reflectors 13 and the high beam reflector 20 in the vertical direction. Further, the high beam reflector 20 and the high beam light source 21 overlap with the two low beam reflectors 13 in the left-right direction in a top view.

[0050] The high beam reflector 20 has a high beam reflecting surface 20a and a non-reflecting surface 20b. The high beam reflecting surface 20a faces the high beam light source 21 from below and reflects the emitted light of the high beam light source 21 forward. The high beam reflecting surface 20a is curved backward and downward. The non-reflecting surface 20b is provided on the surface of the high beam reflector 20 excluding the high beam reflecting surface 20a. The non-reflecting surface 20b is located above the high beam reflecting surface 20a and extends substantially flat in the front-rear, left-right directions. The high beam reflector 20 also has a pair of side surfaces 20c extending in the vertical direction at both the left and right ends of the high beam reflecting surface 20a and the non-reflecting surface 20b.

[0051] The high-beam reflecting surface 20a is formed, for example, by vapor-depositing aluminum on a high-beam reflector 20 made of resin. Further, the non-reflecting surface 20b is masked in the vapor-depositing process, and aluminum is not vapor-deposited thereon. Accordingly, the high-beam reflecting surface 20a has a gloss of aluminum, and the non-reflecting surface 20b shows the color of the resin material (for example, black). For this reason, the reflectance of the non-reflecting surface 20b is lower than that of the high-beam reflecting surface 20a.

[0052] The low-beam reflector 13 has, on its lower surface, a low-beam reflecting surface 13a that reflects light for low beam forward. The low-beam reflecting surface 13a is located below the low-beam light source 14, is inclined downward toward the front, and is curved rearward and downward. A reflective film is formed on the low-beam reflecting surface 13a through a vapor-depositing process similar to that of the high-beam reflecting surface 20a.

[0053] Each of the light sources 14 and 21 and each of the reflectors 13 and 20 are supported by an aiming bracket for adjusting the irradiation direction of each beam. By adjusting the angle of the aiming bracket with respect to the housings 10 and 11, the irradiation directions of the low beam and the high beam are adjusted.

[0054] According to the headlamp unit 1 according to the present embodiment and the saddle-riding type vehicle 100 including the headlamp unit 1, the following effects are obtained.

[0055] (1) Two low-beam outer lens portions 12a that are arranged side by side with a space therebetween and transmit the low beam forward, One high-beam outer lens portion 12b that is arranged on the right side with respect to the left end of the low-beam outer lens portion 12a arranged on the left side and on the left side with respect to the right end of the low-beam outer lens portion 12a arranged on the right side, and is arranged with a space above the two low-beam outer lens portions 12a and transmits the high beam forward are provided.

[0056] As a result, the sizes of the outer lens portions 12a and 12b can be reduced as compared with a headlamp unit that irradiates high beam and low beam with a single outer lens.

[0057] (2) The high beam outer lens portion 12b is disposed below the low beam outer lens portion 12a and behind the front end of the low beam outer lens portion 12a. As a result, the high beam outer lens portion 12b can be made less conspicuous, particularly when the headlamp unit 1 is viewed from above or obliquely from above. Since the high beam irradiates stronger light than the low beam, it is relatively more conspicuous. By making the high beam outer lens portion 12b less conspicuous as in the present embodiment, the headlamp unit 1 can be made to appear smaller.

[0058] (3) The high beam outer lens portion 12b is inclined rearward downward. As a result, the area of the high beam outer lens portion 12b in a front view is smaller than the area of the high beam outer lens portion 12b viewed from a direction orthogonal to the front surface of the high beam outer lens portion 12b. Therefore, while ensuring the irradiation amount required for the high beam, the high beam outer lens portion 12b can be made less conspicuous. Further, since the front surface of the high beam outer lens portion 12b is inclined rearward, the traveling wind passing through the front surface of the high beam outer lens portion 12b is easily guided to the radiator 102 disposed behind the headlamp unit 1. Thereby, the wind is easily guided to the radiator 102 located behind and below the headlamp unit 1, and the cooling of the engine by the radiator 102 is promoted.

[0059] (4) The headlamp unit 1 further includes a high beam light source 21 that irradiates light for high beam, a high beam reflector 20 that reflects the light for high beam irradiated from the high beam light source 21 forward and is disposed at a position corresponding to the high beam outer lens portion 12b in a front view, and The high-beam reflector 20 has a high-beam reflecting surface 20a that reflects the light for high beam forward, and a non-reflecting surface 20b having a reflectivity lower than that of the high-beam reflecting surface 20a. It has.

[0060] As a result, when the light of a streetlight or the like illuminates the headlamp unit 1 when the high beam is not lit, or when the light for low beam is irradiated onto the high-beam reflector within the headlamp unit, since the high-beam reflector 20 has the non-reflecting surface 20b, the light or the light for low beam is less likely to be reflected by the high-beam reflector 20, and the high-beam outer lens portion 12b can be made less conspicuous.

[0061] (5) The high-beam outer lens portion 12b is disposed below the low-beam outer lens portion 12a, and the high-beam light source 21 is disposed above the high-beam reflector 20.

[0062] As a result, it is possible to suppress the high-beam light source from protruding below the high-beam reflector, and the high-beam reflector can be disposed as low as possible in the headlamp unit. Thereby, the heights of the high-beam reflector and the high-beam outer lens portion are reduced, and the high-beam outer lens portion can be made less conspicuous.

[0063] (6) The high-beam outer lens portion 12b is disposed behind the front end of the low-beam outer lens portion 12a, the high-beam reflecting surface 20a faces the high-beam light source 21 from below, and the non-reflecting surface 20b is formed at least above the high-beam reflecting surface 20a among the surfaces excluding the high-beam reflecting surface 20a.

[0064] As a result, when external light from below the headlamp unit 1, such as road surface reflected light, irradiates the high-beam reflector 20, the non-reflective surface 20b suppresses reflection by the external light. Thereby, the high-beam outer lens portion 12b can be made less conspicuous.

[0065] (7) The headlamp unit 1 includes a high-beam light source 21 that irradiates high-beam light, a high-beam reflector 20 that reflects the high-beam light irradiated from the high-beam light source 21 forward and is disposed at a position corresponding to the high-beam outer lens portion 12b in a front view, two low-beam light sources 14 that irradiate low-beam light, two low-beam reflectors 13 that reflect the low-beam light irradiated from the two low-beam light sources 14 forward and are disposed at positions corresponding to the two low-beam outer lens portions 12a in a front view and further includes The high-beam light source 21 is disposed on the right side with respect to the left end of the low-beam reflector 13 disposed on the left side and on the left side with respect to the right end of the low-beam reflector 13 disposed on the right side, and is disposed between the two low-beam reflectors 13 and the high-beam reflector 20 in the vertical direction.

[0066] As a result, it is possible to suppress the high-beam light source 21 from protruding in the vertical direction with respect to the low-beam reflector 13 and the high-beam reflector 20, and it is easier to miniaturize the headlamp unit 1.

[0067] (8) The headlamp unit 1 includes an outer lens 12 having two low-beam outer lens portions 12a and a high-beam outer lens portion 12b, a headlamp 2 to which the outer lens 12 is attached, an upper cowl 3 that covers the headlamp 2 and further includes The high-beam outer lens part 12b is disposed below the low-beam outer lens part 12a. The upper cowl 3 covers the high-beam outer lens part 12b in a top view.

[0068] As a result, since the upper part of the high-beam outer lens part 12b is covered by the upper cowl 3, the high-beam outer lens part 12b can be made less conspicuous particularly when the headlamp unit 1 is viewed from above or obliquely from above.

[0069] (9) The headlamp unit 1 includes an outer lens 12 having two low-beam outer lens parts 12a and a high-beam outer lens part 12b, a headlamp 2 to which the outer lens 12 is attached, and an upper cowl 3 that covers the headlamp 2 and further includes. The upper cowl 3 covers the high-beam outer lens part 12b in a side view.

[0070] As a result, since the side of the high-beam outer lens part 12b is covered by the upper cowl 3, the high-beam outer lens part 12b can be made less conspicuous particularly when the headlamp unit 1 is viewed from the side.

[0071] (10) The saddle-type vehicle 100 includes two low-beam outer lens parts 12a that are arranged side by side with a space therebetween and transmit a low beam forward, and a high-beam outer lens part 12b that is disposed on the right side with respect to the left end of the low-beam outer lens part 12a disposed on the left side and on the left side with respect to the right end of the low-beam outer lens part 12a disposed on the right side, and is disposed above the two low-beam outer lens parts 12a with a space therebetween and transmits a high beam forward. The headlamp unit 1 includes and includes.

[0072] As a result, the aesthetics of the saddle-riding type vehicle 100 including the headlamp unit 1 having the downsized outer lens 12 are improved.

[0073] Note that the headlamp unit and the saddle-riding type vehicle including the headlamp unit according to the present disclosure are not limited to the configurations of the above-described embodiments, and various modifications are possible.

[0074] In this specification, a motorcycle is disclosed as the saddle-riding type vehicle, but it may be applied to other saddle-riding type vehicles. For example, the saddle-riding type vehicle may be a three-wheeled vehicle or a four-wheeled buggy vehicle.

[0075] As the saddle-riding type vehicle, in addition to an engine, an electric motor may be used as a drive source, or a hybrid vehicle in which both an electric motor and an engine are used as the drive source may be used.

[0076] As in this embodiment, it is preferable that the headlamp unit is supported by a bracket that angularly displaces together with the front fork. The headlamp unit of the present disclosure is suitably used for a naked vehicle in which the engine is partially exposed. Note that the headlamp unit is not limited to this. For example, the headlamp unit may be fixed to the vehicle body frame regardless of the angular displacement of the front fork.

[0077] Although the high beam is appropriately lit by the operation of the driver, it is not limited to this. For example, the saddle-riding type vehicle may include a sensor that detects the surrounding situation, specifically, the presence or absence of oncoming vehicles or preceding vehicles. In this case, when it is determined whether there is an oncoming vehicle or a preceding vehicle according to the sensor output, the high beam may be turned off, and when no oncoming vehicle or preceding vehicle is recognized, the high beam may be turned on.

[0078] The headlamp unit 1 of this embodiment includes an upper cowl, but it may not include an upper cowl. Further, although the upper cowl 3 of this embodiment is divided vertically, it is not limited to this, and it may have an integral structure, or other divided structures such as a left-right divided structure may be adopted.

[0079] The high-beam outer lens portion 12b is disposed at a downward interval with respect to the two low-beam outer lens portions 12a, but may be disposed at an upward interval with respect to the two low-beam outer lens portions 12a. Even in this case, each outer lens portion can be miniaturized.

[0080] The area of the high-beam outer lens portion 12b is smaller than the area of the low-beam outer lens portion 12a in a front view, whereby the high-beam outer lens portion 12b can be made less conspicuous. However, the area of the high-beam outer lens portion 12b may be smaller than the total area of the two low-beam outer lens portions 12a in a front view. Even in this case, the high-beam outer lens portion can be made less conspicuous.

[0081] The side surface 20c of the high-beam reflector 20 has aluminum vapor-deposited thereon, but aluminum may not be vapor-deposited thereon, that is, it may be a non-reflective surface. When the side surface 20c of the high-beam reflector 20 is a non-reflective surface, light from streetlights or the like is less likely to be reflected by the high-beam reflector when the high-beam is not lit, and the high-beam outer lens portion can be made even less conspicuous.

[0082] Two high-beam light sources 21 are provided above the high-beam reflector 20. However, when the light required for the high-beam can be provided by one light source, one high-beam light source may be provided above the high-beam reflector 20.

[0083] The high-beam light source 21 is provided above the high-beam reflector 20, but may be provided below the high-beam reflector.

[0084] [Appendix] The headlamp unit according to the present disclosure and the saddle-riding type vehicle including the headlamp unit provide the following aspects.

[0085] [Aspect 1] Two low-beam outer lens parts arranged side by side with a gap therebetween, transmitting a low beam forward On the right side with respect to the left end of the low-beam outer lens part arranged on the left side, and on the left side with respect to the right end of the low-beam outer lens part arranged on the right side, arranged with a gap above or below the two low-beam outer lens parts, and transmitting a high beam forward, one high-beam outer lens part A headlamp unit comprising the same.

[0086] [Aspect 2] The high-beam outer lens part is arranged below the low-beam outer lens part and behind the front end of the low-beam outer lens part. The headlamp unit according to Aspect 1.

[0087] [Aspect 3] The high-beam outer lens part is inclined rearward downward. The headlamp unit according to Aspect 2.

[0088] [Aspect 4] The headlamp unit further comprises A high-beam light source for irradiating high-beam light, A high-beam reflector that reflects the high-beam light irradiated from the high-beam light source forward and is arranged at a position corresponding to the high-beam outer lens part in a front view. And further comprises The high-beam reflector A high-beam reflecting surface that reflects the high-beam light forward, And a non-reflecting surface having a reflectivity lower than the reflectivity of the high-beam reflecting surface. Having the same. The headlamp unit according to any one of Aspects 1 to 3.

[0089] [Aspect 5] The high-beam outer lens portion is disposed below the low-beam outer lens portion. The high-beam light source is disposed above the high-beam reflector. The headlamp unit according to Aspect 4.

[0090] [Aspect 6] The high-beam outer lens portion is disposed behind the front end of the low-beam outer lens portion. The high-beam reflecting surface faces the high-beam light source from below. The non-reflecting surface is formed at least above the high-beam reflecting surface among the surfaces excluding the high-beam reflecting surface. The headlamp unit according to Aspect 5.

[0091] [Aspect 7] The headlamp unit includes a high-beam light source that irradiates high-beam light, a high-beam reflector that reflects the high-beam light irradiated from the high-beam light source forward and is disposed at a position corresponding to the high-beam outer lens portion in a front view, two low-beam light sources that irradiate low-beam light, two low-beam reflectors that reflect the low-beam light irradiated from the two low-beam light sources forward and are disposed at positions corresponding to the two low-beam outer lens portions in a front view and further includes The high-beam light source is disposed on the right side with respect to the left end of the low-beam reflector disposed on the left side and on the left side with respect to the right end of the low-beam reflector disposed on the right side, and is disposed between the two low-beam reflectors and the high-beam reflector in the vertical direction. The headlamp unit according to any one of Aspects 1 to 6.

[0092] [Aspect 8] The headlamp unit includes An outer lens having the two low beam outer lens portions and the high beam outer lens portion, A headlamp to which the outer lens is attached, An upper cowl that covers the headlamp, and further comprising: The high beam outer lens portion is disposed below the low beam outer lens portion, The upper cowl covers the high beam outer lens portion in a top view, The headlamp unit according to any one of Aspects 1 to 7.

[0093] [Aspect 9] The headlamp unit, An outer lens having the two low beam outer lens portions and the high beam outer lens portion, A headlamp to which the outer lens is attached, An upper cowl that covers the headlamp, and further comprising: The upper cowl covers the high beam outer lens portion in a side view, The headlamp unit according to any one of Aspects 1 to 8.

[0094] [Aspect 10] Two low beam outer lens portions that are arranged side by side with a space therebetween and transmit a low beam forward, One high beam outer lens portion that is disposed on the right side with respect to the left end of the low beam outer lens portion disposed on the left side and on the left side with respect to the right end of the low beam outer lens portion disposed on the right side, and is disposed above or below the two low beam outer lens portions with a space therebetween and transmits a high beam forward, A headlamp unit comprising: A saddle-type vehicle.

Description of Reference Numerals

[0095] 1: Headlamp unit 2: Headlamp 3: Upper cowl 12: Outer lens 12a: Low beam outer lens part 12b: High beam outer lens part 13: Low beam reflector 14: Light source for low beam 20: High beam reflector 20a: High beam reflecting surface 20b: Non-reflecting surface 21: Light source for high beam 100: Straddle-type vehicle

Claims

1. Two low beam outer lens parts are arranged on the left and right with a gap between them, and transmit the low beam forward. one high beam outer lens part that is disposed on the right side of the left end of the low beam outer lens part disposed on the left side and on the left side of the right end of the low beam outer lens part disposed on the right side, and that is disposed above or below the two low beam outer lens parts with a gap therebetween, and transmits a high beam forward; A headlamp unit comprising:

2. The high beam outer lens portion is disposed below the low beam outer lens portion and rearward of a front end of the low beam outer lens portion.

2. The headlamp unit according to claim 1.

3. The high beam outer lens portion is inclined downward and rearward.

3. The headlamp unit according to claim 2.

4. The headlamp unit includes: A high beam light source that irradiates light for a high beam; a high beam reflector that reflects the high beam light emitted from the high beam light source forward and is disposed at a position corresponding to the high beam outer lens portion in a front view; It also has The high beam reflector is A high beam reflecting surface that reflects the high beam light forward; a non-reflective surface having a reflectance lower than that of the high beam reflective surface; having 3. A headlamp unit according to claim 1 or 2.

5. The high beam outer lens portion is disposed below the low beam outer lens portion, The high beam light source is disposed above the high beam reflector.

5. A headlamp unit according to claim 4.

6. The high beam outer lens portion is disposed rearward of a front end of the low beam outer lens portion, The high beam reflecting surface faces the high beam light source from below, The non-reflective surface is formed at least above the high beam reflecting surface among surfaces other than the high beam reflecting surface.

6. A headlamp unit according to claim 5.

7. The headlamp unit includes: A high beam light source that irradiates light for a high beam; a high beam reflector that reflects the high beam light emitted from the high beam light source forward and is disposed at a position corresponding to the high beam outer lens portion in a front view; Two low beam light sources for emitting light for low beam; two low beam reflectors that reflect the low beam light emitted from the two low beam light sources forward and are disposed at positions corresponding to the two low beam outer lens portions in a front view; It also has The high beam light source is disposed on the right side of the left end of the low beam reflector disposed on the left side and on the left side of the right end of the low beam reflector disposed on the right side, and is disposed between the two low beam reflectors and the high beam reflector in the vertical direction.

3. A headlamp unit according to claim 1 or 2.

8. The headlamp unit includes: an outer lens having two of the low beam outer lens portions and the high beam outer lens portion; a headlamp to which the outer lens is attached; and An upper cowl covering the headlamp; It also has The high beam outer lens portion is disposed below the low beam outer lens portion, The upper cowl covers the high beam outer lens portion in a top view.

2. The headlamp unit according to claim 1.

9. The headlamp unit includes: an outer lens having two of the low beam outer lens portions and the high beam outer lens portion; a headlamp to which the outer lens is attached; and An upper cowl covering the headlamp; It also has The upper cowl covers the high beam outer lens portion in a side view. A headlamp unit according to claim 1 or 8.

10. Two low beam outer lens parts are arranged on the left and right with a gap between them, and transmit the low beam forward. one high beam outer lens part that is disposed on the right side of the left end of the low beam outer lens part disposed on the left side and on the left side of the right end of the low beam outer lens part disposed on the right side, and that is disposed above or below the two low beam outer lens parts with a gap therebetween, and transmits a high beam forward; Equipped with a headlamp unit, Saddle-type vehicle.

Citation Information

Patent Citations

  • Head lamp unit

    JP2021030755A