Seat for saddle-riding type vehicle

Abstract

To stably support an occupant in a seat of a saddle-riding type vehicle having a plate that forms a seating surface.SOLUTION: A seat 1 of a saddle-riding type vehicle has a resin top plate 2 that is flexible and forms a seating surface, and a plurality of metal wires 3, 4, 5 that is provided along the top plate and imparts rigidity to the top plate. The top plate has a plurality of ventilation holes 11 penetrating in the thickness direction thereof and is formed in a mesh shape. The wires include a lateral wire 3 that extends in the left-right direction at the center in the front-rear direction of the top plate and is curved to protrude upward. The seat may have a frame 6 coupled along the edge of the rear surface of the top plate. Some ends of the wires may be connected to the frame.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a seat for a saddle-type vehicle.

Background Art

[0002] Patent Document 1 discloses a bicycle saddle having a rail member, a frame member supported by the rail member and having a plurality of through holes formed therein, and a mesh member laminated on the upper surface of the frame member. In this bicycle saddle, a cushion pad such as urethane foam can be omitted.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] There is a desire to apply the structure as in Patent Document 1 to seats of other saddle-type vehicles such as motorcycles and four-wheel buggies. However, the seats of these other saddle-type vehicles differ in shape and size compared to bicycle saddles. In particular, the seat widths of these other saddle-type vehicles are significantly different from those of bicycle saddles. Therefore, when the seating surface is formed of a flexible plate such as a mesh member, there is a problem that the rigidity of the seat is reduced and it is difficult to stably support the occupant.

[0005] In view of the above background, an object of the present invention is to stably support an occupant in a seat of a saddle-type vehicle having a plate forming a seating surface.

Means for Solving the Problems

[0006] In order to solve the above problems, one aspect of the present invention is a seat (1) for a saddle-type vehicle, which has a flexible resin top plate (2) forming a seating surface, and a plurality of metal wires (3, 4, 5) provided along the top plate to impart rigidity to the top plate. The top plate has a plurality of ventilation holes (11) penetrating in the thickness direction, is formed in a mesh shape, and the plurality of wires include a horizontal wire (3) extending in the left-right direction at the central portion of the top plate in the front-rear direction and curved upwardly convex.

[0007] According to this aspect, since the horizontal wire is disposed near the ischium of the occupant, the load of the occupant can be efficiently supported. Therefore, in the seat of the saddle-type vehicle having a plate forming the seating surface, the occupant can be supported with good stability.

[0008] In the above aspect, the seat may have a frame (6) coupled along the edge of the back surface of the top plate, and some ends of the plurality of wires may be connected to the frame.

[0009] According to this aspect, since the frame imparts rigidity to the edge of the top plate, the top plate can maintain its shape. Also, since the wire is connected to the frame, the wire can support the occupant with good stability.

[0010] In the above aspect, the seat may have a bottom plate (7) coupled to the frame and disposed via a space below the top plate. The plurality of wires may include at least one vertical wire (4) extending in the front-rear direction at the central portion of the top plate in the left-right direction. The vertical wire may penetrate the top plate in the front-rear direction and have a front end portion (4A) penetrating the front portion of the bottom plate in the front-rear direction and a rear end portion (4B) penetrating the rear portion of the bottom plate in the front-rear direction.

[0011] According to this aspect, since the top plate is supported by the bottom plate and the vertical wires, the top plate can stably support the occupant.

[0012] In the above aspect, at least one groove portion (19) recessed downward is formed on the upper surface of the top plate, the vertical wire penetrates through the groove portion and extends in the front-rear direction, and a plurality of first drain holes (21) penetrating in the thickness direction are provided on the bottom surface of the groove portion.

[0013] According to this aspect, the rigidity of the top plate can be improved by the groove portion. Further, since the vertical wire is disposed in the groove portion, the rigidity of the groove portion is improved. The liquid that has entered the recess is discharged from the first drain hole.

[0014] In the above aspect, the bottom plate has a plurality of reinforcing ribs (37) protruding upward and a plurality of recesses (38) defined by the plurality of reinforcing ribs, and a plurality of second drain holes (39) penetrating in the thickness direction are provided on the bottom surfaces of the plurality of recesses.

[0015] According to this aspect, the rigidity of the bottom plate can be improved by the plurality of reinforcing ribs. Further, the liquid that has entered between the plurality of reinforcing ribs can be discharged from the second drain hole.

[0016] In the above aspect, the top plate and the frame may be adhered to each other.

[0017] According to this aspect, the displacement between the frame and the top plate is suppressed, and the top plate is reliably supported by the frame.

[0018] In the above aspect, a plurality of coupling holes (34) are formed at the edge of the bottom plate, and the frame may be provided with a plurality of press-fit protrusions (35) press-fitted into the plurality of coupling holes.

[0019] According to this aspect, the displacement between the frame and the bottom plate is suppressed, and the top plate is reliably supported by the frame and the bottom plate.

[0020] In the above aspect, the bottom plate may be curved so as to be convex downward when viewed from the left - right direction.

[0021] According to this aspect, a space for the elastic deformation of the top plate is formed between the top plate and the bottom plate.

[0022] In the above aspect, a pair of vertical wires may be provided on the left and right, and the horizontal wire may be in contact with the upper surfaces of the left and right vertical wires.

[0023] According to this aspect, the horizontal wire is supported by the vertical wire, and the horizontal wire can support the load of the occupant with good stability.

[0024] In the above aspect, a flexible pad (50) may be provided between the top plate and the bottom plate, and skin materials (51) may be covered on the edges of the upper surface of the top plate and the lower surface of the bottom plate.

[0025] According to this aspect, the skin material prevents liquid such as rainwater from entering the inside of the seat. Also, the top plate supported by the pad can support the occupant with good stability.

Advantages of the Invention

[0026] In order to solve the above problems, one aspect of the present invention is a seat (1) for a straddle-type vehicle, which has a flexible resin top plate (2) forming a seating surface, and a plurality of metal wires (3, 4, 5) provided along the top plate and imparting rigidity to the top plate. The top plate has a plurality of ventilation holes (11) penetrating in the thickness direction, is formed in a mesh shape, and the plurality of wires include a horizontal wire (3) extending in the left-right direction at the central portion in the front-rear direction of the top plate and curved so as to be convex upward.

[0027] According to this aspect, since the horizontal wire is disposed near the ischium of the occupant, the load of the occupant can be efficiently supported. Therefore, in the seat of the straddle-type vehicle having a plate forming the seating surface, the occupant can be supported with good stability.

[0028] In the above aspect, the seat may have a frame (6) coupled along the edge of the back surface of the top plate, and some ends of the plurality of wires may be connected to the frame.

[0029] According to this aspect, since the frame imparts rigidity to the edge of the top plate, the top plate can maintain its shape. Also, since the wire is connected to the frame, the wire can support the occupant with good stability.

[0030] In the above aspect, the seat may have a bottom plate (7) coupled to the frame and disposed via a space below the top plate. The plurality of wires may include at least one vertical wire (4) extending in the front-rear direction at the central portion in the left-right direction of the top plate. The vertical wire may penetrate the top plate in the front-rear direction and have a front end portion (4A) penetrating the front portion of the bottom plate in the front-rear direction and a rear end portion (4B) penetrating the rear portion of the bottom plate in the front-rear direction.

[0031] According to this aspect, since the top plate is supported by the bottom plate and the vertical wires, the top plate can stably support the occupant.

[0032] In the above aspect, at least one groove portion (19) recessed downward is formed on the upper surface of the top plate, the vertical wire extends back and forth through the groove portion, and a plurality of first drain holes (21) penetrating in the thickness direction may be provided on the bottom surface of the groove portion.

[0033] According to this aspect, the rigidity of the top plate can be improved by the groove portion. Further, since the vertical wire is disposed in the groove portion, the rigidity of the groove portion is improved. The liquid that has entered the recess is discharged from the first drain hole.

[0034] In the above aspect, the bottom plate has a plurality of reinforcing ribs (37) protruding upward and a plurality of recesses (38) defined by the plurality of reinforcing ribs, and a plurality of second drain holes (39) penetrating in the thickness direction may be provided on the bottom surfaces of the plurality of recesses.

[0035] According to this aspect, the rigidity of the bottom plate can be improved by the plurality of reinforcing ribs. Further, the liquid that has entered between the plurality of reinforcing ribs can be discharged from the second drain hole.

[0036] In the above aspect, the top plate and the frame may be adhered to each other.

[0037] According to this aspect, the displacement between the frame and the top plate is suppressed, and the top plate is reliably supported by the frame.

[0038] In the above aspect, a plurality of coupling holes (34) may be formed at the edge of the bottom plate, and the frame may be provided with a plurality of press-fit protrusions (35) press-fitted into the plurality of coupling holes.

[0039] According to this aspect, the displacement between the frame and the bottom plate is suppressed, and the top plate is reliably supported by the frame and the bottom plate.

[0040] In the above aspect, the bottom plate may be curved so as to be convex downward when viewed from the left - right direction.

[0041] According to this aspect, a space for elastic deformation of the top plate is formed between the top plate and the bottom plate.

[0042] In the above aspect, a pair of vertical wires may be provided on the left and right, and the horizontal wire may contact the upper surfaces of the left and right vertical wires.

[0043] According to this aspect, the horizontal wire is supported by the vertical wire, and the horizontal wire can stably support the load of the occupant.

[0044] In the above aspect, a flexible pad (50) may be provided between the top plate and the bottom plate, and skin materials (51) may be covered on the edges of the upper surface of the top plate and the lower surface of the bottom plate.

[0045] According to this aspect, the skin material prevents liquid such as rainwater from entering the inside of the seat. Also, the top plate supported by the pad can stably support the occupant.

Brief Description of the Drawings

[0046]

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Mode for Carrying Out the Invention

[0047] Hereinafter, with reference to the drawings, embodiments of the seat of the saddle-riding type vehicle of the present invention will be described. The saddle-riding type vehicle includes, for example, motorcycles, four-wheel buggies, water bikes, snowmobiles, etc. In the following embodiments, the seat of a motorcycle will be described.

[0048] As shown in FIGS. 1 to 5, the seat 1 has a top plate 2, a plurality of wires 3, 4, 5, a frame 6, and a bottom plate 7. The top plate 2 is flexible and forms a seating surface 2A. The plurality of wires 3, 4, 5 are provided along the top plate 2 and impart rigidity to the top plate 2. The frame 6 is coupled along the edge of the back surface of the top plate 2. The bottom plate 7 is coupled to the frame 6 and is disposed below the top plate 2 with a space therebetween.

[0049] The top plate 2 is formed of a resin material. The plurality of wires 3, 4, 5 are formed of metal. The frame 6 and the bottom plate 7 are formed of a resin material or metal. The top plate 2 has higher flexibility than the frame 6 and the bottom plate 7.

[0050] As shown in FIGS. 1 and 3, the top plate 2 has a plurality of ventilation holes 11 penetrating in the thickness direction and is formed in a mesh shape. The top plate 2 has a main surface portion 13 generally facing in the vertical direction, left and right side edge portions 14 provided on the left and right sides of the main surface portion 13 and extending downward, and a rear edge portion 15 provided behind the main surface portion 13. The rear edge portion 15 has left and right corner portions 16 protruding upward. The left and right corner portions 16 are formed in a triangular shape.

[0051] The front half of the top plate 2 is curved such that the central portion bulges upward when viewed from the front. The rear half of the top plate 2 is inclined upward toward the rear.

[0052] On the upper surface of the top plate 2, at least one groove portion 19 recessed downward is formed. In the present embodiment, two groove portions 19 are provided in the front and rear. The two groove portions 19 are arranged side by side in the front-rear direction and extend in the front-rear direction at the central portion of the main surface portion 13 in the left-right direction. The front and rear groove portions 19 introduce a three-dimensional shape into the top plate 2 and improve the rigidity of the top plate 2. A plurality of first drain holes 21 penetrating in the thickness direction are provided in the bottom surface 19A of the groove portion 19. Liquid such as rainwater that has entered the groove portion 19 is discharged from the plurality of first drain holes 21.

[0053] At the central portion of the main surface portion 13 in the front-rear direction, a band portion 22 extending in the left-right direction and connected to the left and right side edge portions 14 is provided. The band portion 22 extends left and right passing between the front and rear groove portions 19.

[0054] The plurality of ventilation holes 11 form a mesh region 23 on the main surface portion 13. The ventilation holes 11 are arranged avoiding the front and rear groove portions 19 and the band portion 22. The main surface portion 13 is partitioned into four mesh regions 23 by the groove portion 19 extending in the front-rear direction and the band portion 22 extending in the left-right direction. The mesh region 23 has higher flexibility compared to the groove portion 19 and the band portion 22. Each ventilation hole 11 is preferably formed in a quadrangular shape and arranged in a lattice pattern. Each ventilation hole 11 may be formed in various shapes such as a circular shape or a triangular shape.

[0055] As shown in FIGS. 2 and 5, the frame 6 has a front side portion 6A extending left and right, left and right side portions 6B extending rearward from the left and right end portions of the front side portion 6A, and a rear side portion 6C extending left and right and connected to the rear end portions of the left and right side portions 6B, and is formed in a quadrangular shape. The frame 6 is preferably adhered to the edge portion of the back surface of the top plate 2.

[0056] As shown in FIGS. 2 and 4, the bottom plate 7 has a main surface portion 31 and an edge portion 32 provided around the main surface portion 31. The bottom plate 7 is curved so as to be convex downward when viewed from the left - right direction. Mainly, the main surface portion 31 of the bottom plate 7 is curved so as to be convex downward when viewed from the left - right direction. Thereby, a space for the main surface portion 13 of the top plate 2 to elastically deform is formed between the main surface portion 31 of the bottom plate 7 and the main surface portion 13 of the top plate 2.

[0057] The edge portion 32 of the bottom plate 7 is coupled to the frame 6. As shown in FIG. 6, a plurality of coupling holes 34 are formed in the edge portion 32 of the bottom plate 7. The frame 6 is provided with a plurality of press - fit protrusions 35 that are press - fitted into the plurality of coupling holes 34. By press - fitting each press - fit protrusion 35 into the corresponding coupling hole 34, the frame 6 and the bottom plate 7 are coupled to each other. Thereby, the displacement between the frame 6 and the bottom plate 7 is suppressed, and the top plate 2 is reliably supported by the frame 6 and the bottom plate 7.

[0058] The bottom plate 7 has a plurality of reinforcing ribs 37 protruding upward and a plurality of recesses 38 defined by the plurality of reinforcing ribs 37. The plurality of reinforcing ribs 37 improve the rigidity of the bottom plate 7. A plurality of second drain holes 39 penetrating in the thickness direction are provided in the bottom surface 19A of the plurality of recesses 38. The liquid that has entered the plurality of recesses 38 is discharged from the corresponding second drain holes 39.

[0059] As shown in FIG. 2, the plurality of wires 3, 4, 5 include a horizontal wire 3 that extends in the left - right direction at the central portion of the top plate 2 in the front - rear direction and is curved so as to be convex upward. Also, the plurality of wires 3, 4, 5 include at least one vertical wire 4 that extends in the front - rear direction at the central portion of the top plate 2 in the left - right direction. In this embodiment, two left - right vertical wires 4 are provided. Also, the plurality of wires 3, 4, 5 include left - right rear wires 5 that extend left - right outward from the central portion of the rear end of the top plate 2 toward the front.

[0060] Some ends of the plurality of wires 3, 4, 5 are connected to the frame 6. In this embodiment, the ends of the horizontal wire 3 and the ends of the left and right rear wires 5 are each connected to the frame 6. A plurality of receiving holes 41 are formed at appropriate positions on the frame 6. The ends of the horizontal wire 3 and the ends of the left and right rear wires 5 may each be inserted into the receiving holes 41. Also, the ends of the horizontal wire 3 and the ends of the left and right rear wires 5 may be adhered to the frame 6 with an adhesive in a state where they are inserted into the receiving holes 41.

[0061] The left and right ends of the horizontal wire 3 extend downward. Similarly, the front ends of the left and right rear wires 5 extend downward.

[0062] As shown in FIG. 2, the horizontal wire 3 extends along the back surface of the top plate 2. Specifically, the horizontal wire 3 extends along the back surface of the band portion 22. As shown in FIGS. 5 and 7, on the back surface of the band portion 22, a first wire support portion 43 that protrudes downward and extends in the left-right direction along the back surface of the band portion 22 is formed. The horizontal wire 3 is provided inside the first wire support portion 43. The horizontal wire 3 may be insert-molded into the top plate 2. The portion of the band portion 22 where the first wire support portion 43 is provided is formed thicker than the other portions of the band portion 22.

[0063] Each rear wire 5 extends along the back surface of the top plate 2. Specifically, each rear wire 5 extends along the back surface of the mesh region 23. As shown in FIG. 8, a plurality of second wire support portions 44 that protrude downward are formed on the back surface of the mesh region 23. Each rear wire 5 passes through the plurality of second wire support portions 44. Each rear wire 5 may be insert-molded into the top plate 2. When viewed from above, each rear wire 5 is arranged at a position that does not overlap with the plurality of ventilation holes 11. That is, when viewed from above, each rear wire 5 is provided at a position avoiding the plurality of ventilation holes 11.

[0064] As shown in FIGS. 3, 9, and 10, each of the left and right vertical wires 4 has a front end portion 4A that penetrates the top plate 2 in the front - rear direction and also penetrates the front portion of the bottom plate 7 in the front - rear direction, and a rear end portion 4B that penetrates the rear portion of the bottom plate 7 in the front - rear direction. Each vertical wire 4 extends in the front - rear direction through the front - rear groove portions 19. A part of each vertical wire 4 is disposed within the front - rear groove portions 19 and is exposed on the upper - surface side of the top plate 2. Each vertical wire 4 penetrates the front wall 19B and the rear wall 19C that define the front - rear groove portions 19. Each vertical wire 4 improves the rigidity of the front - rear groove portions 19 and the top plate 2. The front end portion 4A and the rear end portion 4B of each vertical wire 4 are preferably joined to the bottom plate 7 by adhesion or welding. Also, the front end portion 4A and the rear end portion 4B of each vertical wire 4 may be caulked so that each vertical wire 4 is joined to the bottom plate 7.

[0065] As shown in FIGS. 2 and 9, the horizontal wire 3 preferably contacts the upper surfaces of the left and right vertical wires 4. Below the band portion 22, the horizontal wire 3 preferably crosses above the left and right vertical wires 4 from left to right. Thereby, the horizontal wire 3 is supported by the left and right vertical wires 4, and the horizontal wire 3 can stably support the load of the occupant.

[0066] As shown in FIG. 11, a flexible pad 50 may be provided between the top plate 2 and the bottom plate 7. Also, a skin material 51 may be covered on the upper surface of the top plate 2 and the lower surface of the edge portion 32 of the bottom plate 7. The skin material 51 prevents liquid such as rainwater from entering the interior of the seat 1. Also, the top plate 2 supported by the pad 50 can stably support the occupant.

[0067] On the lower surface of the edge portion 32 of the bottom plate 7, hooks 52 for hooking the edge of the skin material 51 are preferably provided. In other embodiments, the hooks 52 may be omitted, and an annular rubber may be provided along the edge of the skin material 51. When the rubber contracts, the edge of the skin material 51 can be narrowed, and the edge of the skin material 51 can be in close contact with the back surface of the bottom plate 7.

[0068] As shown in FIG. 12, the pad 50 may include at least one of a first pad 50A formed from a raw material derived from fossil resources and a second pad 50B which is a biomass pad formed from a raw material of biological resources. The first pad 50A may be, for example, a polyurethane foam synthesized from a petroleum raw material. The second pad 50B may be, for example, a biomass-filled polyurethane foam or a polyurethane foam mainly made of biomass. The biomass-filled polyurethane may be a cellulose nanocrystal-filled polyurethane, a silica-filled polyurethane, or a corn starch / polyurethane composite. The polyurethane foam mainly made of biomass may contain a polyol synthesized from soybean oil, rapeseed oil, or castor oil. The first pad may have a higher Young's modulus than the second pad.

[0069] The first pad 50A and the second pad 50B may be provided in combination between the top plate 2 and the bottom plate 7. As shown in FIG. 12, the second pad 50B may be provided so as to cover the main surface portion 31 of the bottom plate 7, and a plurality of first pads 50A may be provided in a plurality of receiving holes formed in the second pad 50B. When viewed from above, the front left first pad 50A is disposed in front of the band portion 22 and to the left of the groove portion 19, the front right first pad 50A is disposed in front of the band portion 22 and to the right of the groove portion 19, the rear left first pad 50A is disposed behind the band portion 22 and to the left of the groove portion 19, and the rear right pad 50 is disposed behind the band portion 22 and to the right of the groove portion 19. Each first pad 50A may be disposed so as to face the mesh region 23.

[0070] As shown in FIG. 13, a pair of left and right pads 50 may be provided between the top plate 2 and the bottom plate 7. The pair of left and right pads 50 may be disposed to the left and right of the groove portion 19 when viewed from above and may extend in the front-rear direction. Each pad 50 may be either the first pad 50A or the second pad 50B.

[0071] As shown in FIG. 14, a pair of front and rear pads 50 may be provided between the top plate 2 and the bottom plate 7. The pair of front and rear pads 50 may be arranged in front of and behind the band portion 22 when viewed from above, and may extend left and right. Each pad 50 may be either the first pad 50A or the second pad 50B.

[0072] As shown in FIG. 15, four pads 50 may be provided between the top plate 2 and the bottom plate 7. When viewed from above, the front left pad 50 is arranged in front of the band portion 22 and to the left of the groove portion 19, the front right pad 50 is arranged in front of the band portion 22 and to the right of the groove portion 19, the rear left pad 50 is arranged behind the band portion 22 and to the left of the groove portion 19, and the rear right pad 50 is arranged behind the band portion 22 and to the right of the groove portion 19. Each pad 50 may be arranged to face the mesh region 23. Each pad 50 may be either the first pad 50A or the second pad 50B.

[0073] As shown in FIG. 16, a plurality of pads 50 may be arranged in each of the plurality of recesses 38 of the bottom plate 7. As shown in FIG. 17, one pad 50 may be provided so as to cover the entire main surface portion 31 of the bottom plate 7. Each pad 50 may be either the first pad 50A or the second pad 50B.

[0074] As shown in FIG. 18, one second pad 50B may be provided between the top plate 2 and the bottom plate 7. A plurality of convex portions 55 may be provided on the upper surface of the second pad 50B. The plurality of convex portions 55 may be respectively fitted into the plurality of ventilation holes 11. Some of the plurality of convex portions 55 may be formed larger than the corresponding ventilation holes 11. Since the convex portion 55 formed larger than the ventilation hole 11 protrudes into the ventilation hole 11 in a deformed state, it can be more strongly adhered to the edge portion of the ventilation hole 11. Thereby, displacement of the second pad 50B with respect to the top plate 2 is suppressed. Among the plurality of convex portions 55, those larger than the corresponding ventilation holes 11 may be arranged on the outer peripheral side of the bottom plate 7 rather than those having the same size as the corresponding ventilation holes 11 among the plurality of convex portions 55.

[0075] As shown in FIG. 19, an illumination device 61 may be provided inside the frame 6. The illumination device 61 may be, for example, an LED tape in which a plurality of LEDs are arranged in a tape shape together with wiring. The illumination device 61 may be provided along the rear surface of the front side portion 6A of the frame 6, the inner side surfaces of the left and right side portions 6B, and the front surface of the rear side portion 6C. An observer can visually recognize the light emitted by the illumination device 61 through the plurality of ventilation holes 11.

[0076] According to the seat 1 according to the embodiment, since the horizontal wire 3 is arranged near the ischium of the occupant, the top plate 2 can efficiently support the load of the occupant. Therefore, in the seat 1 of the saddle-riding type vehicle having the top plate 2 forming the seating surface 2A, the occupant can be supported with good stability.

[0077] Since the frame 6 imparts rigidity to the edge portion of the top plate 2, the top plate 2 can maintain its shape. Further, since the horizontal wire 3 and the left and right rear wires 5 are connected to the frame 6, the horizontal wire 3 and the left and right rear wires 5 can support the occupant with good stability.

[0078] Since the vertical wire 4 penetrates the bottom plate 7 and the top plate 2 is supported by the bottom plate 7 and the vertical wire 4, the top plate 2 can support the occupant with good stability.

[0079] With the above description of the specific embodiments completed, the present invention can be widely modified and implemented without being limited to the above embodiments. For example, the top plate 2 and the frame 6 may be integrally formed by two-color molding. In this case, as shown in FIG. 20, the connecting portion 6D protruding upward from the frame 6 may be inseparably connected to the ventilation holes 11 by passing through some ventilation holes 11 and wrapping around the upper surface of the top plate 2. By these, the displacement between the frame 6 and the top plate 2 is suppressed, and the top plate 2 is reliably supported by the frame 6.

Explanation of Reference Numerals

[0080] 1: Seat 2: Top plate 2A: Seating surface 3: Horizontal wire 4: Vertical wire 4A: Front end portion 4B: Rear end portion 5: Wire 6: Frame 7: Bottom plate 11: Ventilation hole 19: Groove portion 19A: Bottom surface 19B: Front wall 19C: Rear wall 21: First drain hole 34: Coupling hole 35: Press-fit protrusion 37: Reinforcing rib 38: Recess 39: Second drain hole 43: First wire support portion 44: Second wire support portion

Claims

1. These are seats for saddle-type vehicles. It has a flexible resin top plate that forms the seating surface, The sheet has a three-dimensional shape that protrudes downward and extends in the front-to-back direction, located in the center of the lower surface of the top plate.

2. The sheet according to claim 1, wherein the three-dimensional shape includes a pair of left and right side wall portions that protrude downward from the lower surface of the top plate and extend in the front-rear direction.

3. The sheet according to claim 2, wherein the three-dimensional shape is partitioned in the front-to-back direction by a plurality of wall portions.

4. The sheet according to claim 1, wherein the thickness of the three-dimensional shape in the vertical direction is greater than the thickness of the top plate.

5. The sheet according to claim 3, wherein a plurality of holes arranged in a grid pattern are formed on the lower surface of the top plate.

6. The sheet according to claim 5, wherein the plurality of holes are arranged on both the left and right sides of the three-dimensional shape.

7. The sheet according to claim 1, wherein the front half of the top plate is curved such that the central part is convex upward when viewed from the front.

8. The seat according to claim 7, wherein the rear half of the top plate is inclined upward toward the rear.

9. The top plate has a main surface portion facing in the vertical direction, left and right side edges provided on the left and right sides of the main surface portion and extending downward, and a rear edge portion provided at the rear of the main surface portion, The sheet according to claim 8, wherein the trailing edge portion protrudes upward and has left and right corners that are formed in a triangular shape.

10. The sheet according to claim 1, wherein the top plate is provided with vertical wires that penetrate the three-dimensional shape from front to back.

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