JP7124118B2 - Straddle-type vehicle lighting device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device for a straddle-type vehicle, and more particularly to a lighting device for a straddle-type vehicle that can efficiently emit light from an extension member disposed between an outer lens and a reflector.

Conventionally, in a lighting device for a straddle-type vehicle in which light emitted from a light source is reflected by a reflector to illuminate the front of the vehicle body, an extension member having a transmitting portion is arranged in front of the reflector to irradiate a light source that emits light from a main lamp. A configuration is known in which the extension member is also made to emit light by light.

Patent Document 1 discloses a lamp for a straddle-type vehicle in which a light source composed of an incandescent lamp is arranged in the center of a bowl-shaped reflector, and a reflecting portion for causing the extension member to emit light is formed at a position closer to the outside of the extension member. An apparatus is disclosed.

JP 2008-84595 A

Here, in a lighting device using a light emitting diode (LED) as a light source, which has a stronger directivity than an incandescent lamp, the light source is arranged above or below the reflector instead of being arranged in the center of the reflector as in Patent Document 1. In many cases, the light emitted from the LED light source is reflected in front of the vehicle by a reflector. However, in this configuration, the LED light source is arranged above or below the reflector, so even if an extension member is arranged between the outer lens and the reflector, it is difficult to emit light from the same LED light source. I had a problem.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described problems of the prior art and to provide a lighting device for a straddle-type vehicle that can efficiently emit light from an extension member arranged between an outer lens and a reflector by means of an LED light source. .

In order to achieve the above object, the present invention provides LED light sources (37, 39) mounted on a substrate (35), and reflector members disposed above or below the vehicle body of the LED light sources (37, 39). (60) and an extension member (50) disposed in front of the vehicle body of the reflector member (60) and at least partially provided with a transmitting portion (52). ), the LED light sources (37, 39) are disposed in the vicinity of the extension member (50) when viewed from the front of the vehicle body, behind the extension member (50) in the vehicle body, and the LED light sources (37, 39). 39) at a position forward of the vehicle body in the vertical direction between the upper ends of the LED light sources (37, 39) and the lower ends of the reflectors (61, 62) formed on the reflector member (60). The first feature is that reflecting surfaces (68, 69) are provided for reflecting the light emitted from the LED light sources (37, 39) toward the extension member (50).

The second feature is that the LED light sources (37, 39) are arranged at positions overlapping the extension member (50) when viewed from the front of the vehicle body.

Further, the reflector member (60) is disposed below the vehicle body of the LED light sources (37, 39), and the reflecting surfaces (68, 69) are formed integrally with the reflector member (60). The third feature is that

The lighting device (12) includes at least a high-beam LED light source (36) and a low-beam LED light source (37), and the reflecting surfaces (68, 69) are designed to irradiate at least the low-beam LED light source (37). A fourth feature is that light is reflected toward the extension member (50).

The extension member (50) has a fifth feature in that an opaque portion (51) is provided in front of the high beam LED light source (36).

Further, the extension member (50) is configured such that the impermeable portion (51) is provided by subjecting a part of the transmissive member to impermeability treatment, and on the upper surface of the reflector member (60), A sixth point resides in that a stay (71) is erected between the extension member (50) and the high beam LED light source (36) to block the light emitted from the high beam LED light source (36). Characteristic.

Further, the LED light sources (37, 39) are composed of a low beam LED light source (37) and a position light LED light source (39), and the reflecting surfaces (68, 69) are formed by the position light LED light source (39). ) toward the extension member (50), and a portion of the illumination light from the low beam LED light source (37) toward the extension member (50). The seventh feature is that it consists of a second reflective surface (69) that reflects toward.

According to the first feature, the LED light sources (37, 39) mounted on the substrate (35) and the reflector member (60) disposed above or below the vehicle body of the LED light sources (37, 39) and an extension member (50) disposed in front of the vehicle body of the reflector member (60) and at least partially provided with a transmitting portion (52), wherein: The LED light sources (37, 39) are arranged in the vicinity of the extension member (50) when viewed from the front of the vehicle body, behind the extension member (50) and further from the LED light sources (37, 39) into the vehicle body. The LED light source (37, 39) is positioned forwardly between the upper ends of the LED light sources (37, 39) and the lower ends of the reflectors (61, 62) formed on the reflector member (60) in the vertical direction. , 39) toward the extension member (50). It becomes possible to irradiate the rear surface of the extension member with the irradiation light of the light source. As a result, the LED light source that emits light from the extension member can be mounted on the same substrate as the LED light source that irradiates the reflector member with light, thereby preventing an increase in the number of parts and assembly man-hours, as well as reducing the vertical dimension of the lighting device. can be reduced.

According to the second feature, the LED light sources (37, 39) are arranged at positions overlapping with the extension member (50) when viewed from the front of the vehicle body. By being hidden, it is possible to improve the appearance of the lighting device when viewed from the front of the vehicle body.

According to the third feature, the reflector member (60) is arranged below the vehicle body of the LED light sources (37, 39), and the reflective surfaces (68, 69) are aligned with the reflector member (60). Therefore, it is possible to obtain a lighting device in which the reflecting surface and the extension member are positioned above the light emitting portion of the reflector member. Moreover, since the reflecting surface is formed integrally with the reflector member, it is possible to prevent an increase in the number of parts due to the provision of the reflecting surface.

According to the fourth feature, the lighting device (12) includes at least a high beam LED light source (36) and a low beam LED light source (37), and the reflecting surfaces (68, 69) are at least the low beam LED light source. Since the light emitted from the light source (37) is reflected toward the extension member (50), the transmitting portion of the extension member emits light when the low beam is turned on, thereby providing a characteristic appearance.

According to the fifth feature, the extension member (50) is provided with a non-transmissive portion (51) in front of the high beam LED light source (36). By not causing the extension member to emit light at the position , it is possible to give the lighting device a novel light emission mode.

According to the sixth feature, the extension member (50) is configured such that the impermeable portion (51) is provided by subjecting a part of the transmissive member to impermeability treatment, and the reflector member ( 60), a stay (71) is positioned between the extension member (50) and the high beam LED light source (36) to block the light emitted from the high beam LED light source (36). Therefore, the stay can prevent the irradiation light from the high-beam LED light source from hitting the extension member. As a result, it is possible to increase the degree of freedom of the method and color of the non-transparent treatment of the extension member.

According to the seventh characteristic, the LED light sources (37, 39) are composed of a low beam LED light source (37) and a position light LED light source (39), and the reflecting surfaces (68, 69) are the position light A first reflecting surface (68) that reflects a part of the light emitted from the LED light source (39) toward the extension member (50), and a part of the light emitted from the low beam LED light source (37) to the above Since it is composed of the second reflecting surface (69) that reflects toward the extension member (50), the two kinds of reflecting surfaces provided on the reflector member efficiently extend the light emitted from the low beam light source and the position light source. It becomes possible to reflect on the member.

1 is a right side view of a motorcycle to which a lighting device according to an embodiment of the invention is applied; FIG. It is a front view of a headlight. It is a left side view of a headlight. 1 is a front view of a headlight with an outer lens removed; FIG. FIG. 2 is a top view of the headlight with the outer lens removed; 4 is a perspective view of an extension member; FIG. FIG. 6 is a top view of the headlight with the extension member removed from the state of FIG. 5; FIG. 6 is a perspective view of the headlight shown in FIG. 5 viewed from a position near the bottom of the vehicle body; FIG. 3 is a perspective view of the reflector member as seen from the front right side of the vehicle body; It is a partially enlarged perspective view of a reflector member. FIG. 3 is a cross-sectional view taken along line XI-XI of FIG. 2; 3 is a cross-sectional view taken along the line XII-XII of FIG. 2; FIG.

Preferred embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a right side view of a motorcycle 1 to which a lighting device 12 according to one embodiment of the invention is applied. A body frame 2 of a motorcycle 1 as a straddle-type vehicle has a main frame 3 at the center in the vehicle width direction that extends from a head pipe 44 toward the rear of the vehicle body and curves downward. A pivot 56 that pivotally supports the swing arm 21 is provided at the lower end of the main frame 3 .

A steering stem (not shown) is rotatably supported on the head pipe 44, and a top bridge 10 and a bottom bridge 58 that support a pair of left and right front forks 16 are fixed above and below the steering stem. A steering handle 5 having a symmetrical handlebar 7 is fixed to the top bridge 10 , and a pair of left and right rearview mirrors 6 are attached to the steering handle 5 . A front wheel WF is rotatably supported at the lower end of the front fork 16 , and a front fender 15 covering the upper side of the front wheel WF is provided at an intermediate position of the front fork 16 .

A pair of left and right upper seat frames 28 and lower seat frames 29 are attached to the upper part of the rear end of the main frame 3 . A power unit P is fixed to the lower portion of the main frame 3. The power unit P integrally includes a single-cylinder four-cycle engine and a transmission. A swing arm 21 swingably supported by a pivot 56 is suspended from a lower seat frame 29 by a pair of left and right rear cushions 22 .

The rotational driving force of the power unit P is transmitted to the rear wheels WR via a drive chain (not shown) covered by the chain cover 20 . A throttle body 48 including a throttle valve and a fuel injection device is attached to the rear side of the power unit P, and combustion gas from the power unit P is led to a muffler behind the vehicle body through an exhaust pipe 17 . A side stand 18 and a center stand 19 are rotatably supported on the lower end of the main frame 3 .

A front cowl 8 that supports a windbreak screen 9 and a headlight 12 as a lighting device is attached in front of the head pipe 44 . A pair of left and right front winker devices 11 are arranged outside the front cowl 8 in the vehicle width direction, and a holder member 14 for supporting a front license plate 13 is attached to the lower end of the front cowl 8. - 特許庁

A fuel tank 43 is arranged above the main frame 3 . A seat 54 in which a front seat and a rear seat are integrally formed is arranged behind the fuel tank 43 . A side cover 55 is arranged below the fuel tank 43 to cover the left and right sides of an air cleaner box (not shown) connected to the rear of the throttle body 48 . A rear cowl 57 that covers the upper seat frame 28 and the lower seat frame 29 is arranged behind the side cover 55 .

A grab bar 27 is provided on the rear upper portion of the rear cowl 57 , and a tail light 26 is attached to the rear end portion of the rear cowl 57 . A rear fender 24 that supports a pair of left and right rear blinker devices 25 and a rear license plate 23 is fixed to the lower portion of the rear cowl 57 .

FIG. 2 is a front view of the headlight 12. FIG. 3 is a left side view of the headlight 12. FIG. The headlight 12 accommodates a substrate 35 for mounting a light source and a reflector member 60 (see FIG. 4) inside a housing 31 made of a colored synthetic resin or the like, and the front of the housing 31 is made of a colorless and transparent synthetic resin or the like. It is configured to be covered with the formed outer lens 30 . A pair of left and right upper support portions 32 for supporting the front cowl 8, a left support portion 33, a right support portion 34, and a lower support portion 38 for optical axis adjustment are provided on the periphery of the housing 31. As shown in FIG.

An extension member (see FIG. 4) that functions as a light emitting surface is arranged between the outer lens 30 and the reflector member. Low beam light emitting units 41 (41L, 41R) located on both sides, high beam light emitting unit 42, extension light emitting units 40 (40L, 40R) located above low beam light emitting unit 41, and in addition, located above left and right of high beam light emitting unit 42. Light is emitted from the position light emitting portions 49 (49L, 49R). Specifically, when the main switch is turned on, the extension light emitting portion 40 and the position light emitting portion 49 located below the center of the extension light emitting portion 40 in the vehicle width direction are turned on, and when the engine is started, the low beam light emitting portion is turned on. 41 is additionally lit, the portion of the extension light emitting portion 40 on the outer side in the vehicle width direction emits light, and when high beam is selected by operating the dimmer switch, the high beam light emitting portion 42 is additionally lit. The extension light-emitting portion 40 has an elongated shape extending in the vehicle width direction, thereby allowing the extension light-emitting portion 40 to appear as if it emits light from a light source that is independent of the low beam and the high beam, thereby improving the appearance of the lighting device. It is possible to enhance the quality and luxury feeling.

FIG. 4 is a front view of the headlight 12 with the outer lens 30 removed. 5 is a top view of the same, and FIG. 6 is a perspective view of the extension member 50. As shown in FIG. The board 35 on which the five LED light sources are mounted is arranged above the reflector member 60 so as to be oriented substantially horizontally when attached to the vehicle body. The extension member 50 is fixed to the housing 31 so as to cover the front of the board 35 and the left and right ends of the reflector member 60 .

A positioning projection 46 that engages with the front cowl 8 is provided at the center of the upper portion of the extension member 50 . A positioning projection 47 formed on an extension member 50 penetrates the right side of the positioning projection 46 in the vehicle width direction and protrudes forward of the vehicle body. A fastening member 45 is provided for fixing. The through-holes, which are provided at the left and right ends of the extension member 50 and through which the positioning projections pass, are arranged at asymmetrical positions on the left and right, thereby enhancing the positioning accuracy.

On the lower surface of the substrate 35, in addition to a high beam LED light source 36 and a pair of left and right low beam LED light sources 37 (37L, 37R) in the center in the vehicle width direction, a pair of left and right position light LED light sources 39 (39L, 39R) are mounted. It is

The reflector member 60 is formed with a high beam reflector 61 in the center in the vehicle width direction and left and right low beam reflectors 62 (62L, 62R), which constitute a high beam light emitting portion 42 and a low beam light emitting portion 41, respectively. Position light reflectors 63 (63L, 63R) for irradiating the front side of the vehicle body and the back side of the extension member 50 with the irradiation light of the position light LED light source 39 are formed on the left and right of the upper end of the high beam reflector 61. .

Referring to FIG. 6, extension member 50 is provided with a pair of left and right transmissive portions 52 (52L, 52R), a central impermeable portion 51, and side impermeable portions 53 indicated by dotted hatching. The extension member 50 is made of a colorless transparent or colored transparent synthetic resin or the like through which light passes, and is provided with opaque portions 51 and 53 by metal vapor deposition, plating, or the like. The extension light-emitting portions 40 (40L, 40R) shown in FIG. 2 are configured by the transmission portions 52 (52L, 52R). In this embodiment, the center opaque portion 51 is provided by plating, and the extension member 50 does not emit light at a position in front of the LED light source 36 for high beam, thereby giving the headlight 12 a novel light emission mode. A through hole 45 a through which the fastening member 45 passes and a through hole 47 a through which the positioning protrusion 47 passes are provided on the left and right sides of the positioning protrusion 46 .

FIG. 7 is a top view of the headlight 12 with the extension member 50 removed from the state of FIG. In the reflector member 60, the front lower end of the high beam reflector 61 is positioned furthest forward of the vehicle body, and the front edges of the left and right low beam reflectors 62 are positioned rearward of the vehicle body as they go outward in the vehicle width direction.

The substrate 35 is fixed to the upper portion of the reflector member 60 so that the dimension in the vehicle width direction gradually decreases toward the front side of the vehicle body. The reflector member 60 is fixed to the front portion of the housing 31 by a stay 71 extending upward from the upper end portion. This stay 71 also has a function as a light blocking plate that prevents the light emitted from the high beam LED light source 36 from leaking forward. A canopy portion 71a is formed at the lower end portion of the stay 71 so as to extend forward of the vehicle body.

A total of five LED light sources mounted on the lower surface of the board 35 are arranged so that the high beam LED light source 36 and the low beam LED light source 37 are positioned behind the vehicle body rather than the position light LED light source 39 on the front side of the vehicle body. It is The reflector member 60 is formed with openings 65, 66 and 67 for passing the light emitted from each LED light source. The details will be described later.

FIG. 8 is a perspective view of the headlight 12 shown in FIG. 5 as viewed from a position near the bottom of the vehicle body. 9 is a perspective view of the reflector member 60 viewed from the front right side of the vehicle body. The reflector member 60, which is integrally formed of a colored synthetic resin or the like, is entirely subjected to reflective surface treatment by metal vapor deposition or plating.

The ceiling member 72 of the reflector member 60 is provided with five openings for passing the irradiation light of the LED light source. Position light openings 67 (67L, 67R) through which light emitted from the position light LED light source 39 passes are provided on both left and right sides of the high beam opening 65 at the center in the vehicle width direction. The illumination light of the position light LED light source 39 that has passed through the position light opening 67 is reflected forward of the vehicle body by the position light reflectors 63 (63L, 63R) and guided to the front of the vehicle body and the rear side of the extension member 50. The ceiling member 72 above the low-beam reflector 62 is provided with low-beam openings 66 (66L, 66R) through which the light emitted from the low-beam LED light source 37 passes.

Referring to FIG. 9, a pair of left and right partition plates 70 are provided between a high beam reflector 61 and a low beam reflector 62 for partitioning the respective reflectors. The lower end of the high-beam reflector 61 and the peripheral edge of the low-beam reflector 62 are formed with a large number of uneven shapes for enhancing the appearance and diffusing the irradiated light.

As described above, the ceiling member 72 of the reflector member 60 is formed with position light openings 67 on the left and right sides of the high beam opening 65 at the center in the vehicle width direction. A pair of low beam apertures 66 are formed. On the upper surface of the ceiling member 72 and in front of the position light opening 67, there is a first reflection surface that reflects part of the light emitted from the LED light source 39 for the position light to the front of the vehicle body and the rear surface of the extension member 50. Surfaces 68 (68L, 68R) are formed. A second reflecting surface 69 ( 69L, 69R) are formed. In this figure, the ranges of the first reflecting surface 68 and the second reflecting surface 69 formed on the upper surface of the ceiling member 72 are hatched.

On the other hand, in front of the high beam opening 65 in the vehicle body, a stay 71 is erected to prevent the light emitted from the high beam LED light source 36 from leaking in front of the vehicle body and to support the reflector member 60 to the housing 31. It also functions as a light shield. In addition, the eaves portion 71a extending from the lower end portion of the stay 71 toward the front of the vehicle body prevents the irradiation light passing through the transmission portions 52 (52L, 52R) of the extension member 50 from affecting the high beam light emitting portion 42 (see FIG. 2). It functions as a light shielding plate. Further, by providing the stay 71, the degree of freedom of the method of impermeability treatment of the extension member 50, the color, and the like can be increased.

10 is a partially enlarged perspective view of the reflector member 60. FIG. The position light reflector 63 has a total of six reflecting surfaces with different angles and curvatures in order to irradiate the front of the vehicle body and the rear surface of the transmitting portion 52 of the extension member 50 with the irradiation light passing through the position light opening 67. ing. Since the position light LED light source 39 is arranged substantially above the center of the position light opening 67 , the position light reflector 63 is positioned behind the position light LED light source 39 in the vehicle body.

11 is a cross-sectional view taken along line XI-XI of FIG. 2. FIG. As described above, part of the light emitted from the LED light source 39 for position light is projected toward the front of the vehicle body by the reflector 63 for position light, and also passes under the ceiling member 72 located in front of the opening 67 for position light. The light passes through and the rear surface of the transmission portion 52 of the extension member 50 is irradiated. At this time, the position of the front end portion of the ceiling member 72 determines the upper edge of the light emitting area of the transmissive portion 52 . In addition, the position of the front edge of substrate 35 defines the lower edge of the light emitting area of transmissive portion 52 . Another part of the irradiation light from the LED light source 39 for position light is reflected by the first reflecting surface 68 provided on the ceiling member 72 and is irradiated to the rear surface of the transmission portion 52 of the extension member 50 .

12 is a cross-sectional view taken along line XII-XII of FIG. 2. FIG. As described above, the light emitted from the low-beam LED light source 37 is projected toward the front of the vehicle body by the low-beam reflector 62 and is reflected by the second reflecting surface 69 to the back surface of the transmission portion 52 of the extension member 50. be irradiated. As a result, when the low-beam LED light source 37 is turned on, the transmissive portion 52 elongated in the vehicle width direction can be caused to emit light up to the outer position in the vehicle width direction.

As described above, according to the lighting device of the present invention, the LED light sources 37 and 39 are positioned behind the extension member 50 in the vehicle body and in front of the low beam LED light source 37 and the position light LED light source 39. By providing the first reflecting surface 68 and the second reflecting surface 69 that reflect the irradiation light toward the extension member 50, the irradiation light of the LED light source can be reflected while the LED light source is arranged near the extension member when viewed from the front of the vehicle body. It becomes possible to irradiate the back surface of the extension member. As a result, the LED light sources 37 and 39 that emit light from the extension members can be mounted on the same substrate 35 as the high-beam LED light source 36, preventing an increase in the number of parts and assembly man-hours, and reducing the vertical dimension of the headlight 12. can be reduced.

In addition, since the low beam LED light source 37 and the position light LED light source 39 are arranged at positions overlapping the extension member 50 when viewed from the front of the vehicle body, the board 35 on which the LED light sources 37 and 39 are mounted is positioned by the extension member 50. By being hidden, it is possible to improve the appearance of the headlight 12 when viewed from the front of the vehicle body. Further, since the first reflecting surface 68 and the second reflecting surface 69 are formed integrally with the reflector member 60, an increase in the number of parts can be prevented.

In addition, the shape and structure of the housing and outer lens that make up the lighting device, the shape and arrangement of the substrate, the arrangement and number of LED light sources, the shape and structure of the reflector member, the first reflecting surface, the second reflecting surface, and the position light reflector The shape, arrangement, etc. are not limited to the above embodiment, and various modifications are possible. For example, the configuration may be such that the first reflecting surface, the second reflecting surface, and the transmitting portion of the extension member are positioned below the reflector. The lighting device according to the present invention can be applied to straddle-type three-wheeled vehicles, four-wheeled vehicles, and the like.

DESCRIPTION OF SYMBOLS 1... Motorcycle (straddle-type vehicle), 12... Lighting device, 35... Substrate, 36... LED light source for high beam, 37... LED light source for low beam, 39... LED light source for position light (LED light source), 50... Extension member , 51... non-transmissive portion, 52... transparent portion, 60... reflector member, 61... high beam reflector, 62... low beam reflector, 63... position light reflector, 68... first reflecting surface (reflecting surface), 69... second 2 reflecting surface (reflecting surface), 71 ... stay

Claims (5)

An LED light source (37, 39) mounted on a substrate (35), a reflector member (60) disposed below the LED light source (37, 39) in the vehicle body , and the reflector member (60) in front of the vehicle body. A lighting device (12) for a straddle-type vehicle, comprising:
The LED light sources (37, 39) are arranged in the vicinity of the extension member (50) when viewed from the front of the vehicle body,
The irradiation light of the LED light sources (37, 39) is reflected toward the extension member (50) at a position behind the extension member (50) in the vehicle body and further forward in the vehicle body than the LED light sources (37, 39). Reflective surfaces (68, 69) are provided,
The LED light sources (37, 39) are arranged at positions overlapping with the extension member (50) when viewed from the front of the vehicle body,
The reflector member (60) is arranged below the vehicle body of the LED light sources (37, 39),
The reflecting surfaces (68, 69) are formed integrally with the reflector member (60),
The reflective surfaces (68, 69) are provided on the upper surface of the ceiling member (72) of the reflector member (60), and the LED light source (37) passes through openings (66, 67) provided in the ceiling member (72). , 39) illuminates reflectors (61, 62) formed on the reflector member (60) . The lighting device (12) includes at least a high beam LED light source (36) and a low beam LED light source (37),
2. The straddle-type vehicle according to claim 1, wherein the reflecting surfaces (68, 69) reflect at least the light emitted from the low-beam LED light source (37) toward the extension member (50). lighting device. 3. The straddle-type vehicle according to claim 2, wherein the extension member (50) is provided with an opaque portion (51) in front of the high-beam LED light source (36). lighting device. The extension member (50) has a structure in which the impermeable portion (51) is provided by subjecting a part of the permeable member to an impermeable treatment,
On the upper surface of the reflector member (60), a stay (71) is positioned between the extension member (50) and the high beam LED light source (36) to block the light emitted from the high beam LED light source (36). 4. The lighting device for a straddle-type vehicle according to claim 3, wherein the lighting device is erected. The LED light sources (37, 39) consist of a low beam LED light source (37) and a position light LED light source (39),
The reflecting surfaces (68, 69) include a first reflecting surface (68) that reflects a part of the light emitted from the position light LED light source (39) toward the extension member (50), and the low beam light source (68). 5. The saddle according to any one of claims 1 to 4, characterized in that it comprises a second reflecting surface (69) for reflecting part of the light emitted from the LED light source (37) towards the extension member (50). A lighting system for a passenger vehicle.

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