Lamp structure

Abstract

To provide a lamp structure capable of suppressing water from entering from a lens alignment portion to the interior of a lamp body while suppressing an adverse effect to the exterior appearance and costs.SOLUTION: A tail lens 36 includes a pair of right and left external edge portions 36a at respective ends in a vehicle widthwise direction. Right and left turn-signal lenses 37 each have an internal edge portion 37a provided at the internal side in the vehicle widthwise direction and formed along each of the right and left external edge portion 36a of the tail lens 36. The right and left external edge portion 36a of the tail lens 36 and the internal edge portions 37a of the right and left turn-signal lenses 37 form abutting portions 52 and 53 at which corresponding external and internal edge portions abut with each other with those edge portions being attached to a housing. The abutting portions 52 and 53 extend along side edge portions 36a and 37a, respectively, and form a drain passage 54 between the side edge portions 36a and 37a.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present invention relates to a lighting device structure. [Background technology]

[0002] Conventionally, in rear combination lamps that integrate a tail lamp and left and right rear turn signals, there is a configuration in which a drainage channel is provided at the joint between the turn signal lens and the tail lens at the top of the lamp body, and water flows from the drainage channel to the top surface of the housing (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5792252 Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-described conventional configuration, the upper surface of the housing can be used as a gutter above the lens, but it is difficult to use the housing as a gutter below the lens, and a separate gutter shape must be formed. It is possible to interpose a sealing member between the lens mating surfaces, but the presence of the sealing member would make the lens joint more noticeable, which could detract from the appearance of the rear combination lamp and increase the part cost of the sealing member.

[0005] Therefore, an object of the present invention is to provide a lighting structure that can prevent water from entering the lamp body through the lens joint while minimizing the impact on appearance and cost. [Means for solving the problem]

[0006] As a means for solving the above problems, a first aspect of the present invention provides a vehicle lighting system including a tail lens (36) that forms a light-emitting surface of a tail lamp (31), a pair of left and right turn signal lenses (37) that form light-emitting surfaces of a pair of left and right rear turn signals (32), and a housing (34) to which the tail lens (36) and the left and right turn signal lenses (37) are attached to form a lamp body (33) together with the lenses (36, 37), wherein the tail lens (36) has a pair of left and right outer edge portions (36a) on both sides in the vehicle width direction, and the left and right turn signal lenses (37) are disposed on both sides of the tail lens (36) in the vehicle width direction. The left and right outer edges (36a) of the tail lens (36) and the left and right inner edges (37a) of the left and right turn signal lenses (37) form abutting portions (52, 53) that abut against each other when attached to the housing (34), and the abutting portions (52, 53) extend along the abutting side edges (36a, 37a) and form a drainage channel (54) between the abutting side edges (36a, 37a). According to this configuration, by forming drainage channels along the abutment portions between the left and right outer edges of the tail lens and the inner edges of the left and right turn signal lenses, water that reaches the joint between the tail lens and the left and right turn signal lenses is appropriately drained through the drainage channels extending along the abutment portions between the corresponding side edges. This prevents water from seeping into the interior of the lamp body from the joint between the tail lens and the left and right turn signal lenses. Forming the drainage channels at the abutment portions between the corresponding side edges eliminates the need for a seal member between the lenses, making the joint less noticeable and improving design, while reducing the number of parts and cost. Because the drainage structure is formed on the lens cover 35 side, it is unnecessary to provide a drainage structure on the housing 34, which has a complex structure, and this minimizes the impact on the moldability of the housing 34.

[0007] A second aspect of the present invention is characterized in that, in the first aspect, the abutment portions (52, 53) include a first abutment portion (52) located outside the lamp body and a second abutment portion (53) located inside the lamp body, and a drainage channel (54) is formed between the first abutment portion (52) and the second abutment portion (53). According to this configuration, a first abutment portion located on the outside of the lamp body and a second abutment portion located on the inside of the lamp body are formed between the left and right outer edges of the tail lens and the inner edges of the left and right turn signal lenses, and a drainage channel is formed between the first abutment portion and the second abutment portion, so that water that reaches the joint between the tail lens and the left and right turn signal lenses is suppressed in momentum by the first abutment portion, and water that passes through the first abutment portion is suppressed from further infiltration by the second abutment portion. The labyrinth effect of the double abutment portions effectively prevents water from infiltrating inside the lamp body, and forming a drainage channel between the two abutment portions to drain water also effectively prevents water from infiltrating inside the lamp body.

[0008] In a third aspect of the present invention, in the first or second aspect, one of the left and right outer edge portions (36a) of the tail lens (36) and the left and right inner edge portions (37a) of the turn signal lenses (37) is bent toward the inside of the lamp body, and is provided with a first bent portion (56) that forms a first vertical surface (56a) that intersects with the lens outer surface and a displaced surface (56b) that is displaced toward the inside of the lamp body with respect to the lens outer surface, The other side of the inner edge portion (37a) of the turn signal lens (37) is bent toward the inside of the lamp body and has a second bent portion (57) which forms a second vertical surface (57a) intersecting the outer surface of the lens and a tip surface (57b) facing the inside of the lamp body, the first vertical surface (56a) and the second vertical surface (57a) abut against each other to form a first abutment portion (52), and the displacement surface (56b) and the tip surface (57b) abut against each other to form a second abutment portion (53). According to this configuration, a crank-shaped first bend is formed on one of the left and right outer edges of the tail lens or the inner edges of the left and right turn signal lenses, and this first bend forms a displacement surface that is displaced inside the lamp body, and a second bend is formed on the other of the left and right outer edges of the tail lens or the inner edges of the left and right turn signal lenses, facing toward the inside of the lamp body, and the tip surface of this second bend is abutted against the displacement surface to form a second abutment portion.Even if water that reaches the joint between the tail lens and the left and right turn signal lenses passes through the first abutment portion on the outside of the lamp body, the second abutment portion inside the lamp body will abut firmly in a position where it abuts in the direction outside the lamp body, so that water is effectively prevented from entering inside the lamp body and the lens surface at the joint is prevented from shifting in the direction outside the lamp body.

[0009] A fourth aspect of the present invention is characterized in that, in any one of the first to third aspects, the drainage channel (54) is provided with a drainage channel opening (54a) that opens the drainage channel (54) to the outside of the lamp body, the housing (34) is provided with reflectors (31b, 32b) that distribute light from each light source (31a, 32a) of the tail lamp (31) and the left and right rear blinkers (32) toward the rear of the vehicle, and the drainage channel opening (54a) is arranged at a position that does not overlap with each reflector (31b, 32b) when viewed from the rear of the vehicle. According to this configuration, the drainage channel opening is positioned so that it does not overlap with each reflector when viewed from the rear of the vehicle, thereby preventing light from leaking from the drainage channel opening to the rear of the vehicle (light distribution side), and reducing the impact of the drainage channel opening on the light distribution of the lighting fixture.

[0010] A fifth aspect of the present invention is characterized in that, in any one of the first to third aspects, the lamp is provided with a drainage channel opening (54a) that opens the drainage channel (54) to the outside of the lamp body, the lower part of the lamp body (33) is covered from the outside of the lamp body by a cover part (29a) of the vehicle exterior part (29), and the drainage channel opening (54a) is positioned in a position covered by the cover part (29a). With this configuration, the drainage channel opening is covered by the cover portion of the vehicle exterior part, making it invisible from outside the lamp, thereby avoiding any impact on appearance. The drainage channel opening is positioned in a position that is covered by the cover portion of the vehicle exterior part, i.e., a position that avoids the light-emitting portions of each lens, thereby minimizing any impact on the light-emitting area of ​​the lamp. Because the water discharged from the drainage channel opening is hidden by the vehicle exterior part, it is possible to prevent the drainage from damaging the aesthetics around the lamp. [Effects of the Invention]

[0011] According to the present invention, it is possible to provide a lighting structure that can prevent water from entering the lamp body through the lens joint while minimizing the impact on appearance and cost. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a left side view of a motorcycle according to an embodiment of the present invention. [Figure 2] FIG. [Figure 3] FIG. 2 is a left side view of the rear combination lamp of the motorcycle. [Figure 4] FIG. 2 is a rear view of the rear combination lamp. [Figure 5] FIG. 2 is a top view of the rear combination lamp. [Figure 6] FIG. 2 is a perspective view of the rear combination lamp. [Figure 7] FIG. 7 is an enlarged view of a main part of FIG. 6. [Figure 8] FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 3. [Figure 9] 4 is an explanatory diagram schematically illustrating a first bent portion and a second bent portion in a lens fitting portion. FIG. [Figure 10] 10 is an explanatory view corresponding to FIG. 9 and showing a first modified example of the first bent portion and the second bent portion. FIG. [Figure 11] 10 is an explanatory view corresponding to FIG. 9, showing a second modified example of the first bent portion and the second bent portion. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the following description, directions such as front, rear, left, and right are the same as those in the vehicle described below unless otherwise specified. In the drawings used in the following description, an arrow FR indicating the front of the vehicle, an arrow LH indicating the left side of the vehicle, an arrow UP indicating the top of the vehicle, and a line CL indicating the center of the vehicle body are shown in appropriate locations. The term "middle" used in this embodiment refers not only to the center between both ends of an object, but also to the range inside the both ends of an object. In the following description, it is assumed that the body of a saddle-type vehicle is parked upright with no left or right tilt, a steering angle of 0 degrees, and is in an empty 1G state on a horizontal plane.

[0014] <Entire vehicle> FIG. 1 is a left side view of a scooter-type motorcycle 1, which is an example of a saddle-ride type vehicle, as viewed from the left-right direction (vehicle width direction) of the vehicle. As shown in Figure 1, motorcycle 1 has a front wheel 3, which is a steering wheel, and a rear wheel 4, which is a drive wheel. The front wheel 3 is supported by a front fork 3a and can be steered by a handlebar 2. The rear wheel 4 is supported by a swing-type power unit 8 and can be driven by the power unit 8. Steering system components including the handlebar 2, front fork 3a, and front wheel 3 are steerably supported by a head pipe 10a at the front end of a body frame 10. The front portion of power unit 8 is supported in the middle between the front and rear of body frame 10 so as to be able to swing up and down.

[0015] The power unit 8 is provided with a drive source (e.g., an internal combustion engine) 8a at its front, and a power transmission device 8b extending rearward from the left side of the drive source 8a. The power unit 8 is a unit that integrates the drive source 8a and the power transmission device 8b. The power transmission device 8b constitutes, for example, a belt-type continuously variable transmission. The rear wheel 4 is supported at the rear of the power transmission device 8b. The lower end of a rear cushion 9 is connected to the rear end of the power transmission device 8b. The upper end of the rear cushion 9 is connected to the upper rear of the body frame 10. This forms a unit swing-type rear suspension at the rear of the vehicle body.

[0016] A floor step 6 on which the driver places his feet is provided between the front wheels 3 and the rear wheels 4. A front body 11 is provided in front of the floor step 6. A rear body 12 is provided behind the floor step 6. A space K1 above the floor step 6 between the front body 11 and the rear body 12 serves as a straddle space K1 for the driver to straddle the vehicle body. A handlebar bar 2 is provided above the front body 11. A seat 5 on which a passenger sits is provided above the rear body 12.

[0017] <Body frame 10> 1, the body frame 10 is formed by joining together multiple types of steel materials by welding, etc. The body frame 10 includes a head pipe 10a, a down frame 10b extending downward and rearward from the head pipe 10a, a lower frame 10c extending rearward from a lower portion of the down frame 10b, and a rear frame 10d extending rearward and upward from the rear of the lower frame 10c.

[0018] <Body Cover 20> 1, the periphery of a body frame 10 of a motorcycle 1 is covered with a body cover 20. The body cover 20 includes a front body cover 13 that covers the front body 11, a rear body cover 14 that covers the rear body 12, and a center body cover 15 that covers the floor step 6. The front body cover 13 includes a front cover 21 that covers the front body 11 from the front, and an inner cover 23 that covers the front body 11 from the rear. The center body cover 15 includes a floor cover 24 that covers the floor step 6 from above, and floor side covers 25 that cover the floor step 6 from the left and right sides. The upper surface of the floor cover 24 forms a footrest surface 24a of the floor step 6.

[0019] FIG. 2 is a rear view of the motorcycle 1 as seen from the rear of the vehicle. 1 and 2, the rear body cover 14 includes a rear center cover 26 that covers the rear body 12 from the front below the front of the seat 5, a pair of left and right rear side covers 27 that cover the rear body 12 from the left and right sides below the sides of the seat 5, and a rear top cover 28 that covers the rear body 12 from above behind the rear end of the seat 5. In the figures, reference numeral 28a denotes a rear grip that is provided above the rear top cover 28 so as to straddle the left and right sides.

[0020] <Rear body cover 14> 1, the rear body cover 14 is generally tilted upward toward the rear in a side view, and is formed so that its vertical width narrows toward the rear end. The left and right rear side covers 27 cover the periphery of the rear frame 10d from the outside in the vehicle width direction. The left and right rear side covers 27 are triangular in a side view, with the apex angle at the rear end being an acute angle.

[0021] The rear top cover 28 is flat and extends along the vehicle width direction, forming an upper surface that slopes downward toward the rear behind the seat 5. The rear top cover 28 is disposed along an extension of the upper edges of the rear side covers 27 in a side view. A rear combination lamp 30 is disposed behind the rear portions of the lower edges of the left and right rear side covers 27 and below the rear top cover 28. The area extending from below the rear combination lamp 30 to the inside of the lower part of the rear body cover 14 is covered from below by the upper part of the rear fender 29. The upper part of the rear fender 29 forms a fender upper cover portion 29a that covers the lower rear part of the rear body 12 from below.

[0022] The rear fender 29 covers an area extending from above the rear wheel 4 to the rear, with a gap between them. A rear fender 29b extends downward from the lower rear end of the fender upper cover portion 29a, covering the upper rear of the rear wheel 4. A reflector R is attached to the rear side of the upper part of the rear fender 29b. A license plate P is attached to the rear side of the vertically intermediate portion of the rear fender 29b.

[0023] <Rear combination lamp 30> 3 is a left side view of the rear combination lamp 30, FIG. 4 is a rear view of the rear combination lamp 30, FIG. 5 is a top view (plan view) of the rear combination lamp 30, and FIG. 6 is a perspective view of the rear combination lamp 30. 3 to 6, the rear combination lamp 30 integrally includes a tail lamp 31 located on the inside in the left-right direction (vehicle width direction) of the vehicle and a pair of left and right rear blinkers 32 located on the outside in the vehicle width direction.

[0024] The combination lamp 30 houses the light sources (bulbs 31a, 32a in this embodiment) and reflectors (reflectors 31b, 32b) of the tail lamp 31 and the left and right rear blinkers 32 within an integrated lamp body 33. The lamp body 33 comprises a housing 34 that forms the front side of the lamp body 33 and is open toward the rear of the vehicle, and a lens cover 35 that forms the rear side of the lamp body 33 and covers the open portion of the housing 34 from behind. The combination lamp 30 is symmetrical with respect to the center line CL of the vehicle body as the axis of symmetry.

[0025] The housing 34 is integrally formed across the entire width of the lamp body 33 on both sides. The lens cover 35 is divided into a tail lens 36 that forms the light-emitting surface of the tail lamp 31, and left and right turn signal lenses 37 that form the light-emitting surfaces of the left and right rear turn signals 32. Each of the lenses 36, 37 is individually and detachably attached to the housing 34. The integrated lamp body 33 is formed by attaching each of the lenses 36, 37 to the housing 34.

[0026] The housing 34 is integrally molded from a light-blocking, opaque resin such as black polypropylene. Reflectors 31b, 32b for the tail lamp 31 and the left and right rear blinkers 32 are formed on the rear side of the housing 34, for example, by plating the housing 34 itself or by attaching separate components. Each reflector 31b, 32b is, for example, bowl-shaped and opens toward the rear of the vehicle, with the light-emitting portions of the corresponding bulbs 31a, 32a facing the inside of each reflector 31b, 32b. Bulb sockets 31c, 32c that hold the caps of the bulbs 31a, 32a are attached to the back (front) sides of each reflector 31b, 32b, respectively. Hereinafter, the reflector 31b that forms the reflective surface of the tail lamp 31 will be referred to as the tail reflector 31b, and the reflector 32b that forms the reflective surface of the rear blinker 32 will be referred to as the blinker reflector 32b.

[0027] Each of the lenses 36, 37 is individually and integrally molded from a colored or colorless transparent resin such as acrylic resin, polycarbonate resin, etc. Each of the lenses 36, 37 is a clear lens without a lens cut pattern or a cut lens with a lens cut pattern.

[0028] The lens cover 35 is exposed to the outside of the vehicle at the rear end of the rear body cover 14 and forms the external appearance (design) of the rear end of the vehicle body. The exposed surface of the lens cover 35 forms the light-emitting surfaces of the tail lamp 31 and the left and right rear blinkers 32. The exposed surface of the lens cover 35 faces the rear of the vehicle and has a rear end surface portion 41 that is inclined downward with respect to the vertical plane, and left and right side surface portions 45 that extend forward in a curved manner from both the left and right sides of the rear end surface portion 41.

[0029] The rear end surface portion 41 is formed in a circular arc shape that convexes rearward in a plan view. The left and right side surface portions 45 curve forward on both the left and right sides of the rear end surface portion 41 in a plan view, and extend forward beyond the bulb sockets 31c, 32c of the tail lamp 31 and the rear blinker 32. The lens cover 35 and therefore the lamp body 33 are formed so that their lateral width increases toward the front, following the shape of the rear portion of the rear body cover 14. The rear end surface portion 41 extends beyond the overall lateral width of the tail lens 36 to the inner portions of the left and right blinker lenses 37 in the vehicle width direction. The left and right side surface portions 45 are formed by the outer portions of the left and right blinker lenses 37 in the vehicle width direction.

[0030] When viewed from the rear of the vehicle, the rear end surface portion 41 has an upper edge portion 41a that extends in an upwardly convex arc shape, and a lower edge portion 41b that extends generally horizontally between both lower ends of the upper edge portion 41a. When viewed from the rear of the vehicle, the rear end surface portion 41 has a crescent shape surrounded by the upper edge portion 41a and the lower edge portion 41b. The rear end surface portion 41 has a width that is wider than that of the tail lamp 31. As the left and right outer portions of the rear end surface portion 41 curve forward toward the left and right side surface portions 45, the inclination changes so that the lower portions are positioned more outward in the vehicle width direction.

[0031] A lower inclined portion 42 is formed along the lower edge of the rear end surface portion 41 at the lower part of the rear end surface portion 41, the lower inclined portion 42 being bent so as to be positioned more rearward as it goes downward. Above the rear end surface 41, an upper inclined portion 43 is formed along the upper edge of the rear end surface 41. The upper inclined portion 43 has a gentler downward inclination angle (stands up closer to vertical) relative to the rear end surface 41. The outer sides of the upper inclined portion 43 in the vehicle width direction are continuous with the left and right side surface portions 45 in a flush manner.

[0032] 3, the left and right side surface portions 45 extend forward from left and right outer portions of the upper edge portion 41a of the rear end surface portion 41 so as to form a parallelogram in a side view. The left and right side surface portions 45 have a rear lower edge portion 45a extending upward and rearward along the left and right outer portions of the upper edge portion 41a of the rear end surface portion 41, an upper edge portion 45b extending forward and downward in front from an end of the upper edge portion 41a of the upper inclined portion 43, a lower edge portion 45c extending forward and downward in front from an end of the lower edge portion 41b of the rear end surface portion 41, and a front upper edge portion 45d extending between the front ends of the upper edge portion 45b and the lower edge portion 45c at an inclination equivalent to that of the rear lower edge portion 45a.

[0033] 6, a lower wall portion 46 facing downward is formed on the underside of the lens cover 35 in an area encompassed by the lower edge portion 41b of the rear end surface portion 41 and the lower edge portions 45c of the left and right side surface portions 45. The lower wall portion 46 has a step portion 46c formed therein that displaces a region (hereinafter referred to as an inner region 46a) located forward of the lower edge portion 41b of the rear end surface portion 41 and more inward in the vehicle width direction than the lower edge portions 45c of the left and right side surface portions 45 downward relative to a region (hereinafter referred to as an outer region 46b) outside the region (hereinafter referred to as an inner region 46a). The step portion 46c forms a standing wall that spans between the outer peripheral edge of the inner region 46a and the inner peripheral edge of the outer region 46b. The step portion 46c separates the inner region 46a from the outer region 46b.

[0034] 2, the lower wall portion 46 of the lens cover 35 is covered from below by the upper portion of the rear fender 29 (fender upper cover portion 29a) when the rear fender 29 is attached to the lower portion of the rear body cover 14. At this time, the stepped portion 46c is covered from behind and on the left and right outer sides by the outer periphery of the fender upper cover portion 29a.

[0035] In the inner region 46a, a colorless and transparent light-transmitting portion 46a1 is provided on the underside of the tail lens 36 to illuminate the license plate P with light from the bulb 31a. An opening 29a1 is formed in the fender upper cover portion 29a at a location facing the light-transmitting portion 46a1 from below, exposing the light-transmitting portion 46a1 downward.

[0036] 3 and 5, an upper wall portion 47 facing upward of the vehicle is formed on the upper surface side of the lens cover 35 in an area surrounded by upper edges 43a of the upper inclined portion 43 and upper edges 45b of the left and right side portions 45. The upper wall portion 47 is covered from above by the rear top cover 28 except for an area within a specified width of the outer periphery of the lens cover 35 in a plan view. Side wall portions 48 extend forward of the front upper edge portions 45d of the left and right side surface portions 45. The outer portions of the side wall portions 48 in the vehicle width direction are curved downward. The outer portions of the lower wall portion 46 in the vehicle width direction are curved upward. The outer portions of the side wall portions 48 and the lower wall portion 46 in the vehicle width direction are continuous with each other.

[0037] The front edges of the bottom wall 46, top wall 47, and left and right side wall portions 48 of the lens cover 35 are continuously joined to each other, forming a front outer peripheral edge 35a of the lens cover 35. The housing 34 is formed with an outer peripheral edge 34a that faces the front outer peripheral edge 35a of the lens cover 35 in the front-to-rear direction. The two outer peripheral edges 34a, 35a butt against each other via a sealing member such as a rubber packing, and in this state the lens cover 35 is fixed to the housing 34.

[0038] Each lens of the lens cover 35 is individually and detachably attached to the housing 34 using machine screws, hooks mounted on the housing, or the like. A substantially sealed space (lamp chamber) is formed inside the lamp body 33 formed by the housing 34 and the lens cover 35. The lamp chamber is divided into a first lamp chamber for the tail lamp 31 and a second lamp chamber for the left and right rear blinkers 32, for example, by a partition extending rearward from the housing 34. A plurality of support portions 34b are provided on the front side of the housing 34 for attaching the rear combination lamp 30 to the rear body cover 14, etc.

[0039] <Tail Lamp 31> Referring to Figures 3 and 5, the tail lamp 31 comprises an inner region of the housing 34 in the vehicle width direction (hereinafter referred to as the tail housing portion), a tail lens 36 attached to the tail housing portion from the rear of the vehicle, and a tail reflector 31b and a first bulb 31a arranged within a first lamp chamber formed by the tail housing portion and the tail lens 36.

[0040] The tail lamp 31 functions as a tail light that notifies those behind of the presence of the vehicle equipped with it, and also functions as a brake light that notifies those behind that the vehicle equipped with it is braking. The tail lamp 31 of the embodiment also functions as a license light that illuminates the license plate P supported on the rear fender 29.

[0041] The tail lamp 31 has, for example, an incandescent light bulb (bulb 31a) with two filaments as a light source, and emits light at different intensities from a light-emitting surface facing the rear of the vehicle. The tail lamp 31 changes the brightness of the light-emitting surface so that a viewer can distinguish between the tail light and the brake light. The tail lamp 31 may have separate light sources for the tail light and the brake light, or at least one of the light sources may be an LED.

[0042] <Rear blinker 32> The left and right rear turn signals 32 include an outer region of the housing 34 in the vehicle width direction (hereinafter referred to as the turn signal housing portion), a turn signal lens 37 attached to the turn signal housing portion from the rear of the vehicle, and a turn signal reflector 32b and a bulb 32a arranged within a second lamp chamber formed by the turn signal housing portion and the turn signal lens 37.

[0043] The left and right rear blinkers 32 each have a light source, such as an incandescent bulb (bulb 32a) having a single filament, and emit light from a light-emitting surface facing rearward of the vehicle. The left and right rear blinkers 32 each emit light from a light-emitting surface by flashing the bulb 32a. The left and right rear blinkers 32 may each have an LED as a light source.

[0044] <Tail Lens 36> 4, the tail lens 36 has a generally trapezoidal shape in a rear view seen from the rear of the vehicle. In the drawing, reference numeral 35a denotes left and right outer edge portions of the tail lens 36 located on the outer side in the vehicle width direction in a rear view. The left and right outer edge portions 36a are inclined in a rear view so that the lower portions are positioned more outward in the vehicle width direction.

[0045] <Turn Signal Lens 37> The left and right turn signal lenses 37 are formed so as to bulge outward and downward in the vehicle width direction from the left and right outer edge portions 36a of the tail lens 36 in a rear view seen from behind the vehicle. In the drawing, the reference numeral 37a indicates an inner edge portion of the left and right turn signal lenses 37 that is located on the inner side in the vehicle width direction in a rear view. The inner edge portion 37a is inclined in a rear view so that it is positioned more outward in the vehicle width direction as it approaches the bottom. The inner edge portion 37a is formed along the corresponding outer edge portion 36a of the tail lens 36. The inner edge portion 37a is positioned adjacent to the corresponding outer edge portion 36a of the tail lens 36.

[0046] <Matching portion 51, contact portions 52, 53> 7 is an enlarged view of the main part of FIG. 6, and FIG. 8 is a cross-sectional view taken along line VIII-VIII of FIG. 7 and 8, the inner edge 37a of the left turn signal lens 37 and the left outer edge 36a of the tail lens 36 form a lens mating portion 51 that connects the tail lens 36 and the left turn signal lens 37. The inner edge 37a of the right turn signal lens 37 and the right outer edge 36a of the tail lens 36 form a lens mating portion 51 that connects the tail lens 36 and the right turn signal lens 37. Each lens mating portion 51 extends continuously along the side edges that abut against each other. Hereinafter, the lens mating portion 51 will be simply referred to as the mating portion 51.

[0047] The left mating portion 51 forms two contact portions 52, 53 that contact the inner edge portion 37a of the left blinker lens 37 and the left outer edge portion 36a of the tail lens 36 when the left blinker lens 37 and the tail lens 36 are attached (fixed) to the housing 34, and also forms a space (a drainage channel 54, described later) between the two contact portions 52, 53. The two contact portions 52, 53 (and the drainage channel 54) extend continuously along the abutting side edges. The two contact portions 52, 53 and the drainage channel 54 extend at least from the upper edge portion 41a of the rear end surface portion 41 to the stepped portion 46c of the lower wall portion 46. The two contact portions 52, 53 of the left mating portion 51 are divided into a first contact portion 52 located outside the lamp body 33 (lamp body outer side) and a second contact portion 53 located inside the lamp body 33 (lamp body inner side). A drainage channel 54 is formed between the first contact portion 52 and the second contact portion 53 .

[0048] Similarly, the right mating portion 51 also forms two abutment portions 52, 53 that abut the inner edge portion 37a of the right blinker lens 37 and the right outer edge portion 36a of the tail lens 36 when the right blinker lens 37 and the tail lens 36 are attached (fixed) to the housing 34, and also forms a space (a drainage channel 54, described later) between the two abutment portions 52, 53. The two abutment portions 52, 53 (and the drainage channel 54) extend continuously along the abutting side edges. The two abutment portions 52, 53 and the drainage channel 54 extend at least from the upper edge portion 41a of the rear end surface portion 41 to the stepped portion 46c of the lower wall portion 46. The two abutment portions 52, 53 of the right mating portion 51 are divided into a first abutment portion 52 located on the outer side of the lamp body and a second abutment portion 53 located on the inner side of the lamp body. A drainage channel 54 is formed between the first contact portion 52 and the second contact portion 53 .

[0049] <Drainage channel 54> FIG. 9 is an explanatory diagram schematically showing the first bent portion 56 and the second bent portion 57. As shown in FIG. 9, one of the left and right outer edge portions 36a of the tail lens 36 and the inner edge portions 37a of the left and right turn signal lenses 37 (in the embodiment, the inner edge portion 37a of the left and right turn signal lenses 37) has a first bent portion 56 that bends toward the inside (front side) of the lamp body. The first bent portion 56 forms a first vertical surface 56a that bends and extends from the outer surface of the lens toward the inside (front side) of the lamp body at a substantially right angle (along the normal direction), a displaced surface 56b that bends and extends from the tip edge of the first vertical surface 56a toward the inside in the vehicle width direction (toward the tail lens 36) and is displaced toward the inside of the lamp body relative to the outer surface of the lens, and a folded surface 57c that bends and extends from the tip edge of the displaced surface 56b toward the outside (rear side) of the lamp body substantially parallel to the first vertical surface 56a.

[0050] The other of the left and right outer edge portions 36a of the tail lens 36 and the inner edge portions 37a of the left and right turn signal lenses 37 (in this embodiment, the left and right outer edge portion 36a of the tail lens 36) has a second bent portion 57 that bends toward the inside of the lamp body. The second bent portion 57 has a second vertical surface 57a that bends from the outer surface of the lens toward the inside (front side) of the lamp body, and a tip surface 57b that is formed along the tip edge of the second vertical surface 57a and faces toward the inside of the lamp body.

[0051] A portion of the second vertical surface 57a of the second bent portion 57 on the outer side of the lamp body abuts, from the inside in the vehicle width direction, against a portion of the first vertical surface 56a of the first bent portion 56 on the outer side of the lamp body. A first abutment portion 52 on the outer side of the lamp body is formed by the respective portions of the first vertical surface 56a and the second vertical surface 57a on the outer side of the lamp body. A tip end surface 57b of the second bent portion 57 abuts from behind against a displacement surface 56b of the first bent portion 56. The displacement surface 56b and the tip end surface 57b form a second contact portion 53 inside the lamp body.

[0052] The first contact portion 52 and the second contact portion 53 are spaced apart from each other in the direction from inside to outside the lamp body (the direction of arrow D1 in the figure). Hereinafter, the wall of the first bent portion 56 that bends and extends inside the lamp body will be referred to as a first bent wall 56d, and the wall of the second bent portion 57 that bends inside the lamp body and extends parallel to the first bent wall 56d will be referred to as a second bent wall 57d. At least one of the first curved wall 56d and the second curved wall 57d (second curved wall 57d in FIG. 9) has a notch 58 formed therein that reduces the thickness in the opposing direction (the opposing direction, the direction of arrow D2 in the drawing) between the first contact portion 52 and the second contact portion 53. As a result, a flat space with a reduced thickness in the opposing direction is formed between the first curved wall 56d and the second curved wall 57d.

[0053] Fig. 10 is an explanatory diagram corresponding to Fig. 9, showing a first modified example of the first bent portion 56 and the second bent portion 57. Fig. 11 is an explanatory diagram corresponding to Fig. 9, showing a second modified example of the first bent portion 56 and the second bent portion 57. In the example of FIG. 10, the first bent portion 56 of the embodiment has a hook-shaped cross section, whereas the first bent portion 56 does not have a folded surface 57c and has an L-shaped cross section. In the example of FIG. 11, the first bent portion 56 does not have the displacement surface 56b and has an I-shaped cross section similar to the second bent portion 57.

[0054] 11 , the drainage channel 54 may be formed by forming a notch 58 in both the first bent portion 56 and the second bent portion 57. Alternatively, the drainage channel 54 may be formed by forming a notch 58 only in the second bent portion 57. That is, the drainage channel 54 is formed by cutting out at least one of the first bent portion 56 and the second bent portion 57. It does not matter whether the notch 58 is formed in the tail lens 36 or the turn signal lens 37, or whether a hook-shaped or L-shaped bend is formed in the turn signal lens 37.

[0055] In the rear combination lamp 30 of this embodiment, no sealing members are provided at the left and right mating surfaces of the tail lens 36 and the left and right turn signal lenses 37. Water intrusion into the inside of the lamp body at the left and right mating portion 51 is prevented by two contact portions 52, 53. That is, the first contact portion 52 on the outside of the lamp body prevents water from infiltrating, and even if some of the water splashing with force passes through the first contact portion 52, the water loses its momentum and is prevented from further intrusion by the second contact portion 53 inside the lamp body. This labyrinth effect effectively prevents water from infiltrating through the joint portion 51 between the lenses.

[0056] <Drain opening 54a> The drainage channel 54 extends vertically at the left and right joints 51 and guides water that has passed through the first abutment portion 52 downward to drain it from the lamp body 33. The lower end opening of the drain outlet (drainage channel opening 54a) opens to the outside of the lamp body at the step portion 46c that is covered by the fender upper cover portion 29a of the rear fender 29. As a result, the drainage channel opening 54a is not visible in the completed vehicle state, and draining water to a location hidden by the fender upper cover portion 29a does not impair the appearance. The drainage channel opening 54a forms a gap at the joint 51 between the lenses and facilitates the transmission of light from the inside of the lamp body to the outside, but the drainage channel opening 54a being covered by the rear fender 29 prevents light from leaking outside the lamp body. Referring to FIG. 4, the drainage channel opening 54a is disposed at a position that does not overlap with the reflectors 31b and 32b when viewed from the rear of the vehicle, which also helps to prevent light from leaking outside the lamp body.

[0057] As described above, the lighting device structure in the above embodiment includes the tail lens 36 that forms the light-emitting surface of the tail lamp 31, the pair of left and right turn signal lenses 37 that form the light-emitting surfaces of the pair of left and right rear turn signals 32, and the housing 34 to which the tail lens 36 and the left and right turn signal lenses 37 are attached and which forms the lamp body 33 together with the lenses 36, 37. The tail lens 36 has a pair of left and right outer edge portions 36a on both sides in the vehicle width direction, and the left and right turn signal lenses 37 are The inner edge portions 37a, which are arranged on both sides and located on the inside in the vehicle width direction, are formed along the left and right outer edge portions 36a of the tail lens 36, and the left and right outer edge portions 36a of the tail lens 36 and the inner edge portions 37a of the left and right turn signal lenses 37 form abutment portions 52, 53 that abut against each other when attached to the housing 34, and the abutment portions 52, 53 extend along the abutting side edge portions 36a, 37a and form a drainage channel 54 between the abutting side edge portions 36a, 37a. According to this configuration, drainage channels 54 are formed along the abutment portions 52, 53 between the left and right outer edges 36a of the tail lens 36 and the inner edges 37a of the left and right turn signal lenses 37. Water that reaches the joint 51 between the tail lens 36 and the left and right turn signal lenses 37 is appropriately drained through the drainage channels 54 extending along the abutment portions 52, 53 between the corresponding side edges 36a, 37a. This prevents water from seeping into the lamp body from the joint 51 between the tail lens 36 and the left and right turn signal lenses 37. Forming the drainage channels 54 at the abutment portions 52, 53 between the corresponding side edges 36a, 37a eliminates the need for a seal between the lenses 36, 37, making the joint 51 less noticeable and enhancing design. This reduces the number of parts and costs. Because the drainage structure is formed on the lens cover 35 side, it is unnecessary to provide a drainage structure on the housing 34, which has a complex structure, and this minimizes the impact on the moldability of the housing 34.

[0058] In the above-described lighting fixture structure, the abutment portions 52, 53 comprise a first abutment portion 52 located on the outside of the lamp body and a second abutment portion 53 located on the inside of the lamp body, and a drainage channel 54 is formed between the first abutment portion 52 and the second abutment portion 53. According to this configuration, a first abutment portion 52 located on the outside of the lamp body and a second abutment portion 53 located on the inside of the lamp body are formed between the left and right outer edges 36a of the tail lens 36 and the inner edges 37a of the left and right turn signal lenses 37, and a drainage channel 54 is formed between the first abutment portion 52 and the second abutment portion 53. This allows the momentum of water that reaches the joint 51 of the tail lens 36 and the left and right turn signal lenses 37 to be reduced by the first abutment portion 52, and water that has passed through the first abutment portion 52 to be prevented from further infiltration by the second abutment portion 53. The labyrinth effect of the double abutment portions 52, 53 effectively prevents water from infiltrating inside the lamp body, and forming the drainage channel 54 between the two abutment portions 52, 53 to drain water also effectively prevents water from infiltrating inside the lamp body.

[0059] In the above-described lighting fixture structure, one of the left and right outer edge portions 36a of the tail lens 36 and the inner edge portions 37a of the left and right turn signal lenses 37 is bent toward the inside of the lamp body and has a first bent portion 56 which forms a first vertical surface 56a which intersects with the outer surface of the lens and a displacement surface 56b which is displaced toward the inside of the lamp body from the outer surface of the lens, and the other of the left and right outer edge portions 36a of the tail lens 36 and the inner edge portions 37a of the left and right turn signal lenses 37 is bent toward the inside of the lamp body and has a second bent portion 57 which forms a second vertical surface 57a which intersects with the outer surface of the lens and a tip surface 57b which faces toward the inside of the lamp body, and the first vertical surface 56a and the second vertical surface 57a abut against each other to form a first abutment portion 52, and the displacement surface 56b and the tip surface 57b abut against each other to form a second abutment portion 53. According to this configuration, a crank-shaped first bend 56 is formed on one of the left and right outer edge portions 36a of the tail lens 36 and the inner edge portions 37a of the left and right turn signal lenses 37, and this first bend 56 forms a displacement surface 56b that is displaced inside the lamp body, and a second bend 57 facing the inside of the lamp body is formed on the other of the left and right outer edge portions 36a of the tail lens 36 and the inner edge portions 37a of the left and right turn signal lenses 37, and the tip surface 57b of this second bend 57 is abutted against the displacement surface 56b to form a second abutment portion 53.By doing so, even if water that reaches the joint 51 of the tail lens 36 and the left and right turn signal lenses 37 passes through the first abutment portion 52 on the outside of the lamp body, the second abutment portion 53 inside the lamp body will abut firmly in a position where it abuts in the direction outside the lamp body, so that water intrusion into the inside of the lamp body is effectively suppressed and the lens surface at the joint 51 is prevented from shifting in the direction outside the lamp body.

[0060] In the above-mentioned lighting device structure, a drainage channel opening 54a is provided which opens the drainage channel 54 to the outside of the lamp body, and the housing 34 is provided with reflectors 31b, 32b which distribute the light of each bulb 31a, 32a of the tail lamp 31 and the left and right rear blinkers 32 to the rear of the vehicle, and the drainage channel opening 54a is positioned so as not to overlap with each reflector 31b, 32b when viewed from the rear of the vehicle. According to this configuration, the drainage channel opening 54a is positioned so as not to overlap with the reflectors 31b, 32b when viewed from the rear of the vehicle, thereby preventing light from leaking from the drainage channel opening 54a to the rear of the vehicle (light distribution side), and reducing the impact of the drainage channel opening 54a on the light distribution of the lighting device.

[0061] In the above lighting device structure, the lower part of the lamp body 33 is covered from the outside of the lamp body by the fender upper cover part 29a of the rear fender 29, and the drainage channel opening 54a is positioned so as to be covered by the fender upper cover part 29a. According to this configuration, the drainage channel opening 54a is covered by the fender upper cover portion 29a of the rear fender 29, making the drainage channel opening 54a invisible from outside the lamp, and thus preventing any impact on its appearance. The drainage channel opening 54a is positioned in a position that is covered by the fender upper cover portion 29a of the rear fender 29, i.e., in a position that avoids the light-emitting portions of the lenses 36, 37, thereby minimizing any impact on the light-emitting area of ​​the lamp. Since the water drained from the drainage channel opening 54a is hidden by the rear fender 29, it is possible to prevent the drainage from damaging the aesthetic appearance around the lamp. The vehicle exterior part that covers the lower part of the lamp 33 is not limited to the rear fender 29, and may be another exterior part.

[0062] The present invention is not limited to the above-described embodiments. For example, the configurations of the above-described embodiments may be applied to saddle-ride type vehicles other than motorcycles. The saddle-ride type vehicle includes all vehicles on which a rider straddles the body, including not only motorcycles (including motorized bicycles and scooter-type vehicles), but also three-wheeled vehicles (including vehicles with one front wheel and two rear wheels, as well as vehicles with two front wheels and one rear wheel) or four-wheeled vehicles (such as four-wheeled buggies). It also includes not only scooter-type vehicles with a straddle space, but also vehicles with a straddle section that is placed between the rider's knees. It may also be applied to vehicles that include an electric motor as a drive source. The configurations in the above-described embodiments are merely examples of the present invention, and various modifications are possible within the scope of the gist of the present invention, such as replacing the components of the embodiments with well-known components. [Explanation of symbols]

[0063] 1. Motorcycles (saddle-type vehicles) 29 Rear fender (vehicle exterior part) 29a Fender upper cover (cover part) 30 Rear combination lamp 31 Tail lamp 31a, 32a Bulb (light source) 31b, 32b Reflector 33 Light body 34 Housing 35 Lens cover 36 Tail lens (lens) 36a Outer edge 37 Turn signal lens (lens) 37a inner edge 51 Joint 52 First contact portion (contact portion) 53 Second contact part (contact part) 54 Drainage Channel 54a Drain opening (opening) 56 First bending part 56a First vertical surface 56b Displacement surface 57 Second bending part 57a Second vertical surface 57b Tip surface

Claims

1. a tail lens (36) that forms a light-emitting surface of the tail lamp (31); a pair of left and right turn signal lenses (37) forming light emitting surfaces of the pair of left and right rear turn signals (32); a housing (34) to which the tail lens (36) and the left and right turn signal lenses (37) are attached, forming a lamp body (33) together with the lenses (36, 37); The tail lens (36) has a pair of left and right outer edge portions (36a) on both sides in the vehicle width direction, The left and right turn signal lenses (37) are arranged on both sides of the tail lens (36) in the vehicle width direction, and inner edge portions (37a) on the inner side in the vehicle width direction are formed along the left and right outer edge portions (36a) of the tail lens (36), The left and right outer edge portions (36 a) of the tail lens (36) and the left and right inner edge portions (37 a) of the turn signal lenses (37) form abutment portions (52, 53) that abut against each other when the tail lens (36) is attached to the housing (34), The abutting portions (52, 53) extend along the abutting side edges (36a, 37a) and form a drainage channel (54) between the abutting side edges (36a, 37a).

2. The abutment portions (52, 53) include a first abutment portion (52) located on the outside of the lamp body and a second abutment portion (53) located on the inside of the lamp body, 2. The lighting structure according to claim 1, wherein the drainage channel (54) is formed between the first abutment portion (52) and the second abutment portion (53).

3. One of the left and right outer edge portions (36a) of the tail lens (36) and the left and right inner edge portions (37a) of the turn signal lens (37) is bent toward the inside of the lamp body and has a first bent portion (56) that forms a first vertical surface (56a) that intersects with the lens outer surface and a displaced surface (56b) that is displaced toward the inside of the lamp body relative to the lens outer surface, The other of the left and right outer edge portions (36a) of the tail lens (36) and the left and right inner edge portions (37a) of the turn signal lenses (37) is bent toward the inside of the lamp body and has a second bent portion (57) that forms a second vertical surface (57a) that intersects with the lens outer surface and a tip surface (57b) that faces the inside of the lamp body, The first vertical surface (56a) and the second vertical surface (57a) abut against each other to form the first abutment portion (52), The lighting device structure according to claim 2, wherein the displacement surface (56b) and the tip end surface (57b) abut against each other to form the second abutment portion (53).

4. a drainage channel opening (54a) that opens the drainage channel (54) to the outside of the lamp body; The housing (34) includes reflectors (31b, 32b) that distribute light from the light sources (31a, 32a) of the tail lamp (31) and the left and right rear blinkers (32) toward the rear of the vehicle, 4. The lighting device structure according to claim 1, wherein the drainage channel opening (54a) is disposed at a position not overlapping with any of the reflectors (31b, 32b) in a rear view of the vehicle.

5. a drainage channel opening (54a) that opens the drainage channel (54) to the outside of the lamp body; The lower part of the lamp body (33) is covered from the outside of the lamp body by a cover part (29a) of a vehicle exterior part (29), The lighting structure according to claim 4, wherein the drainage channel opening (54a) is arranged at a position covered by the cover portion (29a).

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