Saddle-riding type vehicle
By incorporating a relief portion in the tail light unit to avoid interference with the seat frame, the design addresses the issue of increased rear overhang in saddle-type vehicles, achieving a more aerodynamic and functional vehicle configuration.
Patent Information
- Application Number
- JP2023207378
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-12-08
- Publication Date
- 2025-06-19
AI Technical Summary
Conventional saddle-type vehicles face the challenge of increased rear overhang due to the placement of tail light units behind the seat frame.
The tail light unit is designed with a relief portion that avoids interference with the rear end of the seat frame, allowing the seal surface of the support member to be positioned in front of the seat frame, thus reducing the rear overhang.
This configuration effectively suppresses the increase in rear overhang, allowing for a more streamlined vehicle design while maintaining the functionality of the tail light unit.
Smart Images

Figure 2025091859000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a saddle-type vehicle.
Background Art
[0002] A saddle-type vehicle includes a tail light unit disposed at the rear of the vehicle (see Patent Document 1). The tail light unit is disposed behind a seat frame that supports a seat in order to secure a placement space for the tail light unit.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] Since a conventional tail light unit is disposed behind a seat frame, there is a risk that the overhang at the rear of the vehicle increases. An object of the present invention is to provide a saddle-type vehicle capable of suppressing an increase in the overhang at the rear of the vehicle.
Means for Solving the Problems
[0005] A saddle-type vehicle according to an aspect of the present invention includes a seat, a vehicle body frame, and a tail light unit. The vehicle body frame includes a seat frame that extends in the longitudinal direction of the vehicle and supports the seat. The tail light unit is disposed behind the seat frame and overlaps with the rear end of the seat frame when viewed from the rear of the vehicle. The tail light unit includes at least one substrate, a support member that supports the at least one substrate, an outer lens connected to the support member, and a relief portion that avoids interference with the rear end of the seat frame. The support member includes a seal surface that contacts the outer lens. The relief portion is disposed inside the seal surface.
[0006] In the saddle-type vehicle according to this aspect, since the escape portion of the taillight unit is disposed inside the seal surface of the support member, it is possible to dispose the seal surface in front of the vehicle with respect to the rear end of the seat frame. Accordingly, it is possible to provide a saddle-type vehicle capable of suppressing an increase in the overhang at the rear of the vehicle.
[0007] The rear end of the seat frame may be disposed behind the vehicle with respect to at least a part of the seal surface. In this case, since at least a part of the seal surface is disposed in front of the vehicle with respect to the rear end of the seat rail, it is possible to further suppress an increase in the overhang at the rear of the vehicle.
[0008] The escape portion may be formed in the support member and may have a shape that is recessed from the front of the vehicle toward the rear of the vehicle. The rear end of the seat frame may be housed in the escape portion. In this case, the shape of the escape portion can be easily formed. The rear end of the seat frame can be protected by the escape portion. Further, the taillight unit can be fixed to the seat frame via the escape portion.
[0009] The taillight unit may further include a light guide body disposed between the support member and the outer lens. A part of the light guide body may overlap with the escape portion in a plan view of the vehicle. In this case, while suppressing the overhang at the rear of the vehicle, the light emission size of the taillight unit can be increased in the vehicle width direction.
[0010] The escape portion may penetrate the support member in the vehicle front-rear direction. The seat frame may penetrate the support member in the vehicle front-rear direction via the escape portion. In this case, since the taillight unit can be disposed further in front of the vehicle with respect to the seat rail, it is possible to further suppress an increase in the overhang at the rear of the vehicle.
[0011] The escape portion may penetrate the support member and the outer lens in the vehicle front-rear direction. The seat frame may penetrate the taillight unit in the vehicle front-rear direction via the escape portion. In this case, since the taillight unit can be arranged further forward in the vehicle with respect to the seat rail, it is possible to further suppress an increase in the overhang at the rear of the vehicle.
[0012] The straddle-type vehicle may further include a tail cover that is arranged behind the outer lens and covers the escape portion from the rear. In this case, the rear end of the seat rail can be protected by the tail cover.
Advantages of the Invention
[0013] According to the straddle-type vehicle of the present invention, it is possible to suppress an increase in the overhang at the rear of the vehicle.
Brief Description of the Drawings
[0014]
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Embodiment for Carrying Out the Invention
[0015] Hereinafter, a saddle-type vehicle according to an embodiment will be described with reference to the drawings. FIG. 1 is a side view of a saddle-type vehicle 1 according to the embodiment. In the present embodiment, the saddle-type vehicle 1 is a scooter. As shown in FIG. 1, the saddle-type vehicle 1 includes a vehicle body 2 and a tail light unit 3. The vehicle body 2 includes a steering device 4, a seat 5, a power unit 6, a front wheel 7, a rear wheel 8, a vehicle body frame 9 (see FIG. 2), and a vehicle body cover 10. In the following description, the left and right directions mean the left and right directions as seen by the rider sitting on the seat 5.
[0016] The steering device 4 includes a handle 11 and a front fork 12. The handle 11 is connected to the front fork 12. The handle 11 can be operated left and right by the rider. The front fork 12 is connected to the front wheel 7. The seat 5 is disposed behind the steering device 4. The power unit 6 is disposed below the seat 5. The power unit 6 includes, for example, an internal combustion engine and a transmission. Alternatively, the power unit 6 may include an electric motor. The front wheel 7 is supported by the front fork 12. The rear wheel 8 is rotatably supported by the power unit 6. The rear wheel 8 may be rotatably supported by a swing arm.
[0017] As shown in FIGS. 2 to 4, the vehicle body frame 9 includes seat frames 14 and 15. The seat frames 14 and 15 extend in the vehicle longitudinal direction. The seat frames 14 and 15 are disposed below the seat 5. The seat frames 14 and 15 support the seat 5. The seat frames 14 and 15 are pipe-shaped members.
[0018] The seat frames 14 and 15 include a left seat frame 14 and a right seat frame 15. The left seat frame 14 is disposed to the left of the right seat frame 15. The left seat frame 14 is spaced apart from the right seat frame 15 in the vehicle width direction. The right seat frame 15 has a shape symmetrical to that of the left seat frame 14. The rear portions of the left seat frame 14 and the right seat frame 15 are connected to each other by a cross plate 29.
[0019] The vehicle body cover 10 covers the periphery of the vehicle body frame 9. The vehicle body cover 10 is supported by the vehicle body frame 9. The vehicle body cover 10 includes a tail cover 10a. The tail cover 10a is disposed at the rear of the vehicle and covers the tail light unit 3 from the rear of the vehicle.
[0020] The tail light unit 3 is attached to the vehicle body cover 10. The tail light unit 3 is disposed behind the seat frames 14 and 15. FIG. 5 is a schematic cross-sectional view of the tail light unit cut along a plane orthogonal to the vehicle width direction. FIG. 6 is a schematic cross-sectional view of the tail light unit cut along a plane orthogonal to the vehicle vertical direction. In FIGS. 5 and 6, some members are omitted. As shown in FIGS. 5 and 6, the tail light unit 3 overlaps with the rear ends 14a and 15a of the seat frames 14 and 15 in a rear view of the vehicle. The rear ends 14a and 15a of the seat frames 14 and 15 are disposed closer to the inside in the vehicle width direction than both ends of the tail light unit 3 in the vehicle width direction.
[0021] The tail light unit 3 includes at least one substrate 20, a support member 21, a pair of left and right tail lights 22 and 23, a pair of left and right flashers 24 and 25, an outer lens 26, and a relief portion 27.
[0022] At least one substrate 20 is disposed on the rear surface side of the support member 21. At least one substrate 20 is accommodated in a space formed by the support member 21 and the outer lens 26. At least one substrate 20 overlaps with the rear ends 14a, 15a of the seat frames 14, 15 in a rear view of the vehicle. At least one substrate 20 is a printed circuit board to which a light source (not shown) is connected. In the present embodiment, at least one substrate 20 includes four substrates provided corresponding to a pair of left and right tail lights 22, 23 and a pair of left and right flashers 24, 25. The four substrates are connected to any one of the pair of left and right tail lights 22, 23 and the pair of left and right flashers 24, 25.
[0023] The support member 21 is made of resin and extends in the vehicle width direction. The dimension of the support member 21 in the vehicle width direction is larger than the dimension of the support member 21 in the vehicle vertical direction. The support member 21 has a shape that is recessed toward the rear of the vehicle in a plan view of the vehicle. Both ends of the support member 21 in the vehicle width direction are located forward of the central portion of the support member 21 in the vehicle width direction. Both ends of the support member 21 in the vehicle width direction are disposed outside the vehicle width direction of the rear ends 14a, 15a of the seat frames 14, 15. The support member 21 covers the outside of the rear ends 14a, 15a of the seat frames 14, 15 in the vehicle width direction. The support member 21 overlaps with the rear ends 14a, 15a of the seat frames 14, 15 in a side view of the vehicle. The support member 21 overlaps with the rear ends 14a, 15a of the seat frames 14, 15 in a plan view of the vehicle.
[0024] The support member 21 includes a seal surface 21a. The seal surface 21a is disposed on the rear surface side of the support member 21. The seal surface 21a is formed along the outer edge of the support member 21. The seal surface 21a is formed in a substantially annular shape when viewed from the rear of the vehicle. The seal surface 21a has a shape that is recessed toward the front of the vehicle.
[0025] The sealing surface 21a contacts the outer lens 26. The sealing surface 21a is the portion where the outer lens 26 is attached. When the outer lens 26 is attached to the sealing surface 21a, the space formed by the support member 21 and the outer lens 26 is sealed. The sealing surface 21a overlaps the seat frames 14, 15 in a plan view of the vehicle. As shown in FIGS. 5 and 6, the sealing surface 21a overlaps the seat frames 14, 15 in a side view of the vehicle. The sealing surface 21a does not overlap the rear ends 14a, 15a of the seat frames 14, 15 in a rear view of the vehicle. The rear ends 14a, 15a of the seat frames 14, 15 are disposed rearward of the vehicle relative to at least a part of the sealing surface 21a. The rear ends 14a, 15a of the seat frames 14, 15 are disposed rearward of the vehicle relative to both ends of the sealing surface 21a in the vehicle width direction.
[0026] The pair of left and right tail lights 22, 23 includes a first tail light 22 and a second tail light 23. The first tail light 22 is disposed to the left of the second tail light 23. The first tail light 22 is separated from the second tail light 23 in the vehicle width direction. The second tail light 23 has a shape symmetric with the first tail light 22 about the left-right direction. Each of the first tail light 22 and the second tail light 23 includes a light source (not shown), a light guide, and an inner lens.
[0027] The pair of left and right flashers 24, 25 is disposed below the pair of left and right tail lights 22, 23. The pair of left and right flashers 24, 25 includes a first flasher 24 and a second flasher 25. The first flasher 24 is disposed below the first tail light 22. The second flasher 25 is disposed below the second tail light 23. The second flasher 25 has a shape symmetric with the first flasher 24 about the left-right direction. Each of the first flasher 24 and the second flasher 25 includes a light source (not shown), a light guide, and an inner lens.
[0028] The pair of left and right tail lights 22, 23 and the pair of left and right flashers 24, 25 are integrated in the tail light unit 3.
[0029] The outer lens 26 is connected to the support member 21. The outer lens 26 is disposed behind the support member 21. In a plan view of the vehicle, the outer lens 26 overlaps with the rear ends 14a, 15a of the seat frames 14, 15. The outer lens 26 transmits light from the pair of left and right tail lights 22, 23 and the pair of left and right flashers 24, 25.
[0030] FIG. 7 is a rear view of the outer lens 26. The outer lens 26 includes a main body portion 31, a pair of left and right first lenses 32a, 32b, and a pair of left and right second lenses 33a, 33b.
[0031] The main body portion 31 is fixed to the support member 21. The main body portion 31 includes a contact surface 31a that contacts the seal surface 21a. The contact surface 31a is closely fixed to the seal surface 21a. The contact surface 31a is formed along the outer edge of the main body portion 31.
[0032] The pair of left and right first lenses 32a, 32b cover the pair of left and right tail lights 22, 23 from the rear of the vehicle. The pair of left and right first lenses 32a, 32b are exposed from the tail cover 10a. The first lens 32a is disposed behind the first tail light 22. The first lens 32b is disposed behind the second tail light 23.
[0033] The pair of left and right second lenses 33a, 33b cover the pair of left and right flashers 24, 25 from the rear of the vehicle. The pair of left and right second lenses 33a, 33b are exposed from the tail cover 10a. The second lens 33a is disposed behind the first flasher 24. The second lens 33b is disposed behind the second flasher 25.
[0034] The pair of left and right first lenses 32a, 32b and the pair of left and right second lenses 33a, 33b are integrally fixed. The pair of left and right first lenses 32a, 32b and the pair of left and right second lenses 33a, 33b are fixed to the main body portion 31 by, for example, insert molding.
[0035] The relief portion 27 is provided to avoid interference between the tail light unit 3 and the rear ends 14a, 15a of the seat frames 14, 15. The relief portion 27 has a shape that avoids interference with the rear ends 14a, 15a of the seat frames 14, 15. The relief portion 27 is formed on the support member 21. The relief portion 27 is disposed on the front side of the support member 21. The relief portion 27 is disposed behind the rear ends 14a, 15a of the seat frames 14, 15. The relief portion 27 is spaced apart from the rear ends 14a, 15a of the seat frames 14, 15 in the vehicle longitudinal direction. In a rear view of the vehicle, the relief portion 27 overlaps the rear ends 14a, 15a of the seat frames 14, 15.
[0036] The relief portion 27 is disposed inside the sealing surface 21a. In a rear view of the vehicle, the relief portion 27 is disposed within the region surrounded by the sealing surface 21a. In a rear view of the vehicle, the relief portion 27 does not overlap the sealing surface 21a. The relief portion 27 is disposed more inward in the vehicle width direction than both ends of the sealing surface 21a in the vehicle width direction. The relief portion 27 is disposed to the right of the left end of the sealing surface 21a and to the left of the right end of the sealing surface 21a. The relief portion 27 is disposed below the upper end of the sealing surface 21a and above the lower end of the sealing surface 21a.
[0037] In the saddle-type vehicle 1, since the relief portion 27 of the tail light unit 3 is disposed inside the sealing surface 21a of the support member 21, it becomes possible to dispose the sealing surface 21a in front of the rear ends 14a, 15a of the seat frames 14, 15 in the vehicle front-rear direction. Thereby, it is possible to suppress an increase in the overhang at the rear of the vehicle.
[0038] FIG. 8 is a diagram for explaining a first modified example of the taillight unit 3. The relief portion 27 of the taillight unit 3A according to the first modified example has a shape that is recessed from the front of the vehicle toward the rear of the vehicle. The relief portion 27 is formed in a bottomed cylindrical shape. The rear end 14a of the seat frame 14 is housed in the relief portion 27. The taillight unit 3A further includes light guides 41-44 disposed between the support member 21 and the outer lens 26. The light guide 41 corresponds to the taillight. The light guides 42, 43 correspond to a pair of left and right flashers. The light guide 44 corresponds to the brake lamp.
[0039] As shown in FIG. 8, a part of the light guide 41 overlaps with the relief portion 27 in a plan view of the vehicle. A part of the light guide 41 is disposed above the relief portion 27. A part of the light guide 42 overlaps with the relief portion 27 in a plan view of the vehicle. A part of the light guide 42 is disposed above the relief portion 27. At least one substrate 20 overlaps with the relief portion 27 and the seat frame 14 in a plan view of the vehicle. Here, the substrate 20 to which the light guides 41, 42 are connected overlaps with the relief portion 27 and the seat frame 14 in a plan view of the vehicle. Note that a part of the light guide 41 and a part of the light guide 42 may be configured to be disposed below the relief portion 27.
[0040] FIGS. 9 to 11 are diagrams for explaining a second modified example of the taillight unit 3. In FIG. 9, the outer lens 26 and the tail cover 10a are omitted, and in FIG. 10, the tail cover 10a is omitted.
[0041] As shown in FIG. 9, the relief portion 27 of the taillight unit 3B according to the second modified example penetrates the support member 21 in the vehicle front-rear direction. Specifically, the relief portion 27 includes a first through hole 27a. The first through hole 27a is formed to penetrate the support member 21 in the vehicle front-rear direction. The seat frames 14, 15 penetrate the support member 21 in the vehicle front-rear direction via the relief portion 27. The seat frames 14, 15 protrude rearward from the support member 21. Note that the seal surface 21a is also provided at the periphery of the first through hole 27a.
[0042] As shown in FIG. 10, the relief portion 27 penetrates the outer lens 26 in the vehicle longitudinal direction. Specifically, the relief portion 27 includes a second through-hole 27b. The second through-hole 27b is formed by penetrating the main body portion 31 of the outer lens 26 in the vehicle longitudinal direction. The seat frames 14 and 15 penetrate the taillight unit 3B in the vehicle longitudinal direction through the relief portion 27. The seat frames 14 and 15 protrude rearward of the vehicle from the taillight unit 3B. As shown in FIG. 11, the relief portion 27 and the rear ends 14a and 15a of the seat frames 14 and 15 are covered from the rear of the vehicle by a tail cover 10a disposed behind the outer lens 26.
[0043] As described above, the embodiments according to the present invention have been described. However, the present invention is not limited to the above embodiments, and various modifications are possible without departing from the gist of the invention.
[0044] The saddle-type vehicle 1 may be another type of vehicle such as a sports type, a street type, an off-road type, or a moped.
[0045] The structure of the taillight unit 3 may be changed. The shapes of the support member 21 and the outer lens 26 may be changed. The arrangement or shape of the seal surface 21a may be changed. The arrangement or shape of the pair of left and right taillights 22 and 23 and the pair of left and right flashers 24 and 25 may be changed.
Description of Reference Numerals
[0046] 3: Taillight unit, 5: Seat, 9: Body frame, 10a: Tail cover, 14: Seat frame, 20: Substrate, 21: Support member, 26: Outer lens, 27: Relief portion, 41: Light guide
Claims
1. A seat, A vehicle body frame including a seat frame that extends in the vehicle front-rear direction and supports the seat, A tail light unit disposed behind the seat frame and overlapping the rear end of the seat frame in a rear view of the vehicle, and comprising: The tail light unit includes at least one substrate, a support member that supports the substrate, an outer lens connected to the support member, and a relief portion that avoids interference with the rear end of the seat frame. The support member includes a sealing surface that contacts the outer lens. The relief portion is disposed inside the sealing surface. A saddle-type vehicle.
2. The rear end of the seat frame is disposed rearward of at least a part of the sealing surface in the vehicle. The saddle-type vehicle according to Claim 1.
3. The relief portion is formed in the support member and has a shape that is concave from the vehicle front toward the vehicle rear. The rear end of the seat frame is housed in the relief portion. The saddle-type vehicle according to Claim 1 or 2.
4. The tail light unit further includes a light guide disposed between the support member and the outer lens. A part of the light guide overlaps the relief portion in a plan view of the vehicle. The saddle-type vehicle according to Claim 1 or 2.
5. The relief portion penetrates the support member in the vehicle front-rear direction. The seat frame penetrates the support member in the vehicle front-rear direction through the relief portion. The saddle-type vehicle according to Claim 1 or 2.
6. The relief portion penetrates the support member and the outer lens in the vehicle front-rear direction. The seat frame penetrates the taillight unit in the vehicle longitudinal direction via the relief portion. The saddle-type vehicle according to claim 1 or 2.
7. Further provided is a tail cover that is disposed behind the outer lens and covers the relief portion from the rear. The saddle-type vehicle according to claim 6.
Citation Information
Patent Citations
Motorcycle
JP2010215215A