• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    motor vehicle with two wheels. the invention relates to an air filter housing which is provided for compacting, whereby the seat height can be reduced and the air filter housing can be arranged close to an engine. on a two-wheeled motor vehicle (10) having a vehicle chassis frame (11), a fuel tank (35) arranged on a top front side of the vehicle chassis frame (11), a seat (36) arranged behind the fuel tank (35) and above the vehicle frame (11), an engine (12) suspended between the bottom side of the fuel tank (35) and the bottom side of the vehicle frame (11) , an air filter box (61), a plate-type element (70) arranged in the air filter box (61), and a maintenance cover (72) used when the plate-type element is assembled / disassembled, the air filter housing (61) is arranged below the fuel tank (35), the plate-type element (70) is arranged to be tilted back and up in the side view of the vehicle, and the maintenance cover ( 72) is provided below the seat so that it faces the seat (36).
    公开号:BR112012004234B1
    申请号:R112012004234-3
    申请日:2010-07-05
    公开日:2020-09-29
    发明作者:Kotaro Fujiyama
    申请人:Honda Motor Co., Ltd；
    IPC主号:
    专利说明:

    Technical Field
    [001] The present invention relates to a motor vehicle with two wheels having an air filter housing. Background Technique
    [002] Until now, an air intake device for a motor vehicle with two wheels is known in which an air filter box is arranged below a seat, a removable maintenance cover (air filter cover) is provided below the seat and on the upper surface of the air filter housing and a plate-like element is inserted vertically from the maintenance cover next to the air filter housing and fixed in a vertical position (for example, see Patent Document 1). Prior Art Document Patent Document
    [003] Patent Document 1: Japanese Patent Publication No. 3466043. Summary of the Invention
    [004] However, with respect to the conventional air filter housing, the element is fixed in a vertical position, and so, in order to guarantee the area of the element, the element must be elongated, so that it is necessary to design the box air filter with a large size in the direction of its height. Therefore, it is difficult to reduce the height of the seat, and it is also difficult to arrange the oversize air filter housing next to an engine. Therefore, this has been difficult due to the fact that the air intake device is arranged close to the engine to improve the engine's characteristics.
    [005] The present invention was implemented in view of the preceding situation, and has the objective of miniaturizing a compact air filter box in a motor vehicle with two wheels so that the height of a seat can be reduced and also the box of the air filter can be arranged close to an engine. Means to solve the problem
    [006] In order to solve the above problem, according to the present invention, a motor vehicle with two wheels having a vehicle body structure to hold a front wheel so that the front wheel can be steered, and to hold a wheel rear so that the rear wheel is oscillating, a fuel tank arranged on a front upper side of the vehicle body structure, a seat arranged behind the fuel tank and above the vehicle body structure, a suspended internal combustion engine between the bottom side of the fuel tank and the bottom side of the vehicle body structure, an air filter box to clean the external intake air and supply air to the internal combustion engine, a plate-like element arranged inside the box air filter, and a maintenance cover that forms part of the air filter housing and used when the plate element is mounted / disassembled, is characterized by the fact that the housing of the air filter is arranged below the fuel tank, the plate-like element is arranged to be tilted back and up in a side view of the vehicle so that the cleaning face of the vehicle faces upwards and downwards, and the maintenance cover is provided below the seat so that it faces the seat.
    [007] According to this construction, the plate-like element is arranged to be tilted back and upwards, and thus, the size of the plate-like element does not affect the size in the direction of the height of the air filter housing, so that the air filter box can be compactly arranged in the direction of height. Therefore, the air filter housing can be arranged close to the engine and the seat height can also be reduced. In addition, the maintenance cover is provided so that it faces the seat behind the fuel tank. Therefore, even when the air filter housing is placed close to the engine, the fuel tank obstructs, and also the plate-type element can be mounted / dismounted from the seat side for maintenance. In addition, only the space that the maintenance cover faces is formed below the seat, so that the seat height can be reduced and thus, the driving performance of the two-wheeled vehicle can be improved.
    [008] In the above construction, the air filter box can be built by the upper and lower split boxes, an opening for a connection pipe to supply intake air to the internal combustion engine can be formed in an upper box of the air filter, an opening for an air intake duct for introducing external air into the air filter housing can be formed in a lower air filter housing, and the plate-like element and maintenance cover can be arranged in the lower air filter housing.
    [009] In this case, the plate-type element is arranged in the lower air filter housing of the air filter vertically divided in two. Therefore, when the plate-type element is assembled or disassembled, dust adhering to the plate-type element can be prevented from falling near the bottom of the air filter housing, that is, the clean side, and thus, the performance of the air filter. maintenance can be improved. In addition, the maintenance cover is arranged on the bottom side of the air filter, that is, the dirty side with which external air is introduced, and thus the air impermeability between the maintenance cover and the lower housing of the air filter. air can be relatively easily managed, so productivity can be improved.
    [0010] Additionally, an element support can be interposed between the dividing faces of the upper air filter housing and the lower air filter housing, and an element guiding part for supporting the plate-like element can be formed on a bottom part of the element holder.
    [0011] In this case, when the plate type element is inserted from the maintenance cover, the element orientation part of the element support can be used, and thus, the assembly / disassembly performance of the plate type element can be used. be improved.
    [0012] Additionally, the guiding part of the element can be formed on a bottom side of a position in which the plate-like element is fixed, a guiding part on the side of the cover projecting into the air filter housing it can be formed in the maintenance cover, and the guiding part on the side of the cover can be formed in order to push the plate-like element upwards to a fixing position under the state in which the maintenance cover is fixed next to the box of the air filter.
    [0013] In this case, when the maintenance cover is attached next to the air filter housing, the plate-type element is pushed upwards by the guide side of the cover and the plate-type element is also fixed at the same time , so that maintenance performance can be improved. In addition, when the maintenance cover is removed, the plate-like element can fall to the position of the element's guiding part by its own weight, so that the plate-like element can be easily removed.
    [0014] Additionally, the maintenance cover may have a hook part on top of it, and have a fixation part on the bottom of it.
    [0015] In this case, the hook part is provided in the upper part, and the upper part is not fixed by fixation or similar. Therefore, the maintenance cover can be held close to the air filter housing while rotated with the upper part of it being used as a fulcrum, so that the plate-type element can be suspended by the guide part on the cover side and the plate-like element can be pushed up to the clamping position. In addition, the hook part is provided close to the upper part of the maintenance cover, and therefore, it is unnecessary to provide a fixing part for the upper part. Therefore, the number of fasteners can be reduced, so that productivity can be improved and weight can be reduced.
    [0016] Additionally, all the fixing parts on the side of the box to fix the air filter box next to the body structure of the vehicle can be formed in the upper box of the air filter, and a fixing part on the side of the frame in the side of the vehicle frame to which the air filter housing is attached can be arranged on the top surface of the vehicle body structure.
    [0017] In this case, all the fastening parts on the side of the air filter housing next to the vehicle body structure are integrally formed with the upper air filter housing. Therefore, the positioning accuracy of each fastening part on the housing side can be improved, and productivity can be improved. In addition, the air filter housing is assembled by tightening fastening parts on the housing side from the upper side of the vehicle body structure, so that assembly work can be facilitated and thus, productivity can be additionally enhanced.
    [0018] Additionally, the wall part of the upper air filter housing facing the connection pipe that is connected with the opening of the connection pipe can be designed in a spherical shape.
    [0019] In this case, the wall part of the upper air filter housing in which the negative air intake pressure of the engine acts is formed in a spherical shape and thus, the stiffness of the wall part is increased, so that the air intake sound can be reduced.
    [0020] Additionally, the vehicle body structure can be constructed by at least a pair of right and left frame members, and the fuel tank may have a rear attachment part that is formed in an arch-like shape in view rear in a rear part of the same, and can be fixed next to the pair of left and right frame members through both end parts in the direction of the width of the vehicle in the rear of fixation.
    [0021] In this case, the rear fixing part of the arc type is provided next to the rear of the fuel tank, and thus, the space in which the maintenance cover is arranged can be guaranteed on the rear side of the fuel tank. In addition, the fixing back acts as a member to connect a pair of right and left frame members, and thus, the strength and rigidity of the frame members can be improved. Effect of the Invention
    [0022] In the motor vehicle with two wheels according to the present invention, the plate-type element is arranged to be tilted towards the rear and top side and thus, does not affect the size towards the height of the air filter housing. Therefore, the air filter housing can be compactly arranged in the direction of height. Consequently, the air filter housing can be arranged close to the engine, and the seat height can also be reduced. In addition, the maintenance cover is provided so that it faces the seat. Therefore, even when the air filter housing is placed close to the engine, the fuel tank does not obstruct, and the plate-type element can be mounted / dismounted from the seat side to perform maintenance. Additionally, only the space that the maintenance cover faces is formed below the seat, and thus, the driving performance of the two-wheeled motor vehicle can be improved by reducing the seat height.
    [0023] Additionally, the plate-type element is arranged in the lower air filter housing. Therefore, dust adhering to the plate-type element can be prevented from falling to the clean side on the side of the upper air filter housing, and thus, maintenance performance can be improved. In addition, the maintenance cover is arranged on the side of the lower air filter housing as the dirty side, and thus the air tightness between the maintenance cover and the lower air filter housing can be relatively easily managed, so that productivity can be improved.
    [0024] Additionally, the plate type element can be inserted using the element orientation part of the element support, so that the assembly / disassembly performance of the plate type element can be improved.
    [0025] In addition, when the maintenance cover is fixed, the plate-type element is pushed upwards by the orientation part on the cover side, and at the same time fixed, so that maintenance performance can be improved. When the maintenance cover is removed, the plate-like element can fall to the position of the location of the element's guiding part by its own weight, so that the plate-like element can be easily removed.
    [0026] Additionally, the maintenance cover can be held close to the air filter housing while the upper part of the maintenance cover is rotated with the upper part of it being used as a fulcrum, and the plate-type element can be pushed into up to the fixing position by lifting the plate-type element with the guide part on the cover side. In addition, the hook part is provided near the upper part of the maintenance cover, so that it is unnecessary to provide a fastening part near the upper part and the number of fastening parts can be reduced. Therefore, productivity can be improved, and weight can be reduced.
    [0027] All the fastening parts on the side of the air filter box enclosure next to the vehicle body structure are integrally formed with the upper air filter box, so that the position accuracy of each fastening part on the side of the box can be improved and productivity can be improved. In addition, the air filter housing is assembled by tightening the fastening parts on the housing side from the top of the vehicle body structure, so that the assembly work can be easily performed and productivity can be improved. .
    [0028] Additionally, the wall part of the upper air filter housing in which the negative air intake pressure of the engine acts is formed in a spherical shape, and thus the stiffness of the wall part is increased, so that the air intake sound can be reduced.
    [0029] In addition, the arch-shaped rear attachment part is provided next to the rear of the fuel tank, and thus, the space in which the maintenance cover is arranged can be secured on the rear side of the fuel tank. Additionally, the rear fastening part acts as a member to connect the pair of right and left frame members, whereby the strength and rigidity of the frame members can be improved. Brief Description of Drawings
    [0030] Figure 1 is a left side view of a motor vehicle with two wheels according to an embodiment of the present invention.
    [0031] Figure 2 is a side view in cross section showing an air intake device and its periphery.
    [0032] Figure 3 is a side view showing the air intake device and its periphery.
    [0033] Figure 4 is a front view of the upper part of the air intake device when seen from the front side.
    [0034] Figure 5 is a plan view showing the periphery of a maintenance cover when viewed from the top.
    [0035] Figure 6 is a view showing the periphery of the maintenance cover when viewed from a rear side position facing the maintenance cover.
    [0036] Figure 7 is a side view partially in cross section of the air intake device.
    [0037] Figure 8 is a plan view showing a lower air filter box.
    [0038] Figure 9 is a side view of a plate-type element and an element support.
    [0039] Figure 10 is a view of the plate-type element and the element support when viewed from the rear side of the vehicle. Best Way to Carry Out the Invention
    [0040] A vehicle according to an embodiment of the present invention will be described with reference to the drawings.
    [0041] In the following description, the top and bottom, front and rear and right and left directions are defined with respect to a direction along which a motorcyclist in the vehicle observes.
    [0042] Figure 1 is a left side view of a two-wheeled motor vehicle 10 according to an embodiment of the present invention.
    [0043] The motor vehicle with two wheels 10 is a vehicle of the type that is driven mounted in which an engine 12 (internal combustion engine) is arranged in the central part of a body structure of the vehicle 11, a front fork 13 is supported at the front end of the vehicle body structure 11 so that it can be steered, and a swing arm 14 that can be swung in the up and down direction is mounted at the bottom of the rear end of the vehicle body structure 11.
    [0044] The body structure of the vehicle 11 is configured to have a front tube 16 to support the front fork 13 so that the front fork 13 can be steered, a pair of main frames, right and left, 17 extending from from the top of the front tube 16 down and back, a pair of bottom, right and left frames, 18 extending from the bottom of the front tube 16 down and back, a pair of center frames, right and left, 19 extending from the rear ends of the main frames 17 down into an intermediate part of the vehicle in the front and rear direction, a pair of seat rails, right and left 20 (frame members) that extend back and forth upwards from the rear of the main frames 17 to the rear of the vehicle, a pair of secondary frames, right and left, 21, for connecting the rear ends of the upper parts of the main frames 17 and the rear ends of the seat rails 20, and an oscillating fork 14.
    [0045] Reinforcement frames 22 and 23 for connection of main frames 17 and frames below 18 are provided on the rear side of the front tube 16 and on the sides of the motor 12. Additionally, the reinforcement frames 24 and 25 for connecting the rails of the seat 20 and the secondary frames 21 are provided on the rear sides of the central frame 19. The respective reinforcement frames 22, 23, 24, 35 are provided as pairs, right and left.
    [0046] A lower seat cross member 26 for connecting the right and left seat rails 20 is provided in an intermediate part of the seat rails 20. An upper cross member 27 for connecting the central right and left frames 19, is provided in the upper parts of the central frames 19, and a lower cross member 28 to connect the lower parts of the central frames, right and left, 19, is provided next to the lower parts of the central frames 19.
    [0047] The right and left central frames 19 have plate-type pivot parts 29 extending downwards from the top to which the main frames 17 and the seat rails 22 are connected. The pivot parts 29 are provided as a pair of right and left pivot parts, and a pivot axis 30 to articulate support the swing arm 14, so that the swing arm 14 can swing, is arranged to penetrate through the parts intermediate of the right and left pivot parts 29 in the up and down direction. The pivot axis 30 is arranged in parallel with the direction of the vehicle width.
    [0048] The swing arm 14 has a pair of right and left arms 7 extending in the front and rear direction, and the right and left arms 7 are connected with each other by a front cross section 7A provided on the front side and by a rear cross-section 7B provided on the front side of the rear wheel WR.
    [0049] A pivot axis 30 penetrates through the front end part 14A of the swing arm 14, and the swing arm 14 extends backwards with the front end part 14A thereof being located in the center of oscillation. The rear wheel WR as a driving wheel is mounted on the rear end of the swingarm 14.
    [0050] A connecting mechanism 31 which is joined with the lower cross member 28 is joined with the lower part of the swing arm 14. A rear shock absorber 32 which elastically supports the swing arm 14 is joined with the upper cross member 27 at the upper end of it, and also connected with the connection mechanism 31 at the lower end thereof. The rear shock 32 passes through the space between the front cross section 7A and the rear cross section 7B of the swing arm 14 so that it extends in the up and down direction.
    [0051] A handlebar 33 is secured to the top of the front graph 13, and a front wheel WF is secured to the bottom of the front fork 13. A fuel tank 35, in which the fuel is stored, is arranged on the side top of the main frames 17 in order to be mounted on the main, right and left frames 17, and extends from the rear side of the front tube 16 to the upper side of the central frames 19. That is, the fuel tank 35 is arranged on the upper side of the front of the vehicle body structure 11. Additionally, the fuel tank 35 contains a fuel pump 53 to supply fuel to the engine 12.
    [0052] A biker seat 36 which is provided to cover the right and left seat rails 20 over the top is arranged on the upper side of the seat rails 20 so as to be continuous with the rear end of the water tank. fuel 35, and extends backwards along the seat rails 20. Seat 36 is locked by a locking mechanism (not shown) provided at the rear of seat 36, and a motorcyclist or the like releases the locking mechanism, whereby the locking mechanism is freely removed. In addition, a battery 9 is arranged in a part surrounded by the right and left seat rails, 20, and the secondary frames 21 below the rear of the seat 36.
    [0053] The supports 37 are provided next to the central frames, right and left 19, in order to extend backwards from the rear of the pivot parts 29, and the main stirrups 38 in which the rider's feet are held close to the brackets, right and left, 37.
    [0054] Additionally, a freely foldable side stand 39 is secured near the lower end of the central frame on the left side 19. The two-wheeled motor vehicle 10 has side stand 39 on the left side, and thus, when the vehicle is parked by using the side stand 39, it is parked while kept tilted to the left only at a predetermined angle. A headlight 40 is provided near the front of the front tube 16.
    [0055] Motor 12 is a water-cooled single-cylinder four-stroke engine. An axial cylinder line is provided to be tilted forward, and the engine 12 is configured to have a cylinder block 42 into which a piston is slid, a cylinder head 43 and a cylinder head cover 44 which are successively provided in this order from the crankcase 41 on which the crankshaft is mounted. A transmission 45 is provided at the rear of the crankcase 41 so as to be integral with the crankcase 41.
    [0056] The engine 12 is supported on the body structure of the vehicle 11 so that a front support 46 joined with the front of the crankcase 41 is fixed next to the lower ends of the frames underneath 18, and the upper part of the rear side of the crankcase 41 is attached to the rear support 47 extending from the upper parts of the central frames 19. Additionally, the engine 12 is also attached to the body structure of the vehicle 1 at the bottom of the rear side of the vehicle by a lower support 48 if extending from the lower cross member 28. The engine 12 is supported while suspended near the bottom side of the body structure of the vehicle 11 as a whole.
    [0057] A driving sprocket 56 to emit the rotation of the motor 12 is provided on the left side surface of the rear of the crankcase 41. A driven sprocket 57 is provided close to the left side surface of the rear wheel WR. The rear wheel WR is driven by a chain 58 wound between the driving sprocket 56 and the driven sprocket 57.
    [0058] An exhaust pipe 49 is connected to the front of the cylinder head 43, and the exhaust pipe 49 extends from the front side of the crankcase 41 through the lower side of the crankcase 41 and up to the rear side of the crankcase 41. A muffler 50 extending to the upper rear side is connected to the rear end of the exhaust pipe 49.
    [0059] Additionally, a radiator 51 is secured near the front of the frame underneath 18.
    [0060] An air intake device 60 for taking air to be supplied to the engine 12 is arranged below the rear of the fuel tank 35 and above the central frames 19.
    [0061] The air intake device 60 has the air filter housing 61 to clean the external intake air, and a connection tube 62 protruding forward from the air filter housing 61. A butterfly body 52 to adjust the amount of air to be supplied to the engine 12 is connected to the front end of the connecting tube 62, and the throttle body 52 is connected to the air intake opening 43A at the rear of the cylinder head 43 An injector 34 is provided in the throttle body 52, and the fuel in the fuel tank 35 is supplied to the injector 34 by a fuel pump 53.
    [0062] Additionally, the air filter housing 61 is located on the upper rear side of the cylinder head 43, and the connecting pipe 62 and the throttle body 52 are arranged in a linear fashion to be tilted forward and down until the air inlet opening 43A of the cylinder head 43.
    [0063] The motor vehicle with two wheels 10 has a cover of the body of the vehicle C formed of resin, and the cover of the body of the vehicle C has a pair of side covers, right and left, 54, covering both sides of the device air intake 60, and a rear cover 55 covering the side frames 21 and the seat rails 20 on the rear side of the seat 36. Specifically, the side covers 54 cover the side surface part of the vehicle that is surrounded by the bottom edges of the tank fuel 35 and seat 36 and the upper edges of the main frames 17, the central frames 19 and the secondary frames 21.
    [0064] Additionally, the upper part of the front wheel WF is covered by a front fender 8 secured to the front fork 13.
    [0065] Figure 2 is a side view in cross section showing the air intake device 60 and its periphery.
    [0066] As shown in figure 2, the air filter box 61 is divided into upper and lower boxes, and comprises an upper square 64 air filter box having an open lower surface and a lower air filter box. square-shaped air 65 having an open top surface. The air filter box 61 is configured as a square box by mounting the upper air filter 64 and the lower air filter 65 so that the openings of the same are fitted together.
    [0067] An opening 63 for a connection pipe to which connection pipe 62 is connected is formed at the front of the upper air filter housing 64. An opening 66 for an air intake duct that is opened for the rear side of the vehicle is formed into a rear wall part 65A of the lower air filter housing 65, and an air intake duct 67 as an air intake opening to introduce external air into the air filter housing 61 is connected with opening 66 for the air intake duct to project to the rear side. The air inlet duct 67 is formed in a tubular shape and is provided to project into and out of the lower air filter housing 65 at the rear end part 65A of the lower air filter housing 65.
    [0068] The split faces 61A and 61B of the upper air filter housing 64 and the lower air filter housing 65 are formed to be substantially flat, and a plate-like element support 68 is interposed between the dividing faces 61A and 61B. The element 68 support is provided over all areas of the split faces 61A and 61B under the condition that the element 68 support is sandwiched between the lower surface of the upper air filter housing 64 and the upper surface of the lower housing of the air filter. air element 65.
    [0069] The support of the element 68 has a support part of the element 69 on the side of the lower surface of the same, that is, inside the lower box of the air filter 65 under the state in which it is mounted, and an element of the type plate 70 to absorb dust, etc., contained in the outside air that is taken from the air intake duct 67 is secured by the support part of element 69. The plate-type element 70 has an upper cleaning face 70A and a cleaning face 70B formed on the upper and lower surfaces of the plate-like shape thereof, and the upper cleaning face 70a and the lower cleaning face 70B serve as surfaces having the maximum areas in the plate-like element 70. The type-like element plate 70 is secured so that the upper cleaning face 70A is oriented upwards to face the inside of the upper air filter box 64, and the lower cleaning face 70B is oriented downwards to face the lower box of the air element 65.
    [0070] The support of element 68 is formed in a format of frame type. All external air introduced from the air intake duct 67 into the lower air filter housing 65 flows from the lower cleaning face 70B into the plate-like element 70 to be cleaned, and then flows from the upper cleaning face 70A to the side of the upper air filter housing 64.
    [0071] As described above, the air filter housing 61 is divided into a dirty side and a clean side by the plate-type element 70. The dirty side serving as an external air intake side corresponds to the lower housing of the air filter air 65, and the clean side through which the clean air passes corresponds to the upper housing of the air filter 64.
    [0072] Additionally, the support of the air element 68 is formed in order to decrease in thickness of the plate as the position is closer to the rear end side of the same, and the side of the lower surface of the same in which the part support element 69 is formed is tilted backwards and upwards with respect to the upper surface side thereof. Therefore, the plate-like element 70 is maintained to be tilted backwards and upwards with respect to the upper surface of the support of the element 68.
    [0073] A maintenance opening 71 through which the plate-like element 70 can be inserted and removed from the lower air filter housing 65 is formed at the rear wall part 65A of the lower air filter housing 65. One cylindrical clamping portion 71A projecting backwards is formed at the edge portion of the maintenance opening 71.
    [0074] The maintenance opening 71 is formed above the opening of the air intake duct 66 on the rear wall part 65A, and covered by a freely removable maintenance cover 72.
    [0075] The maintenance cover 72 has a portion of the plate-shaped cover 72A covering the maintenance opening 71, an orientation portion on the side of the cover 72B raised from the cover portion 72A into the interior of the maintenance cover 72 , the hook parts 72C hooked to the top of the maintenance opening 71, the cover fixing parts 72D (fixing parts) attached to the lower air filter box 65, and the groove parts 72E in which the parts 71A mounting brackets are engaged. The hook parts 72C are provided close to the upper part of the cover part 72A, and the fastening parts of the cover 72D are provided close to the bottom parts of the cover parts 72A so that they face the hook parts 72C.
    [0076] The upper box of the air filter 64 has a stepped part 64A that is provided at the front end part of the same so that the top part of it is concave to the back side by a step, and the opening 63 for the connecting tube is formed in the stepped part 64A. The cylindrical connecting tube 62 penetrates through the opening 63 for the connecting tube, and arranged so that it projects towards the inside and outside of the upper air filter housing 64 substantially in parallel with the lower surface of the upper air filter housing. air 64. The front part of the cylindrical connection tube 62 is arranged to be placed in the staggered part 64A, and the rear end 62A of it extends to an intermediate part in the forward and backward direction of the interior of the upper filter housing. air 64.
    [0077] The rear end 62A of the connecting tube 62 is provided so that it faces a rear wall part 64B (wall part) of the upper air filter housing 64, and a part of the rear wall part 64B which faces the rear end 62A and a portion of the rear wall 64B that is continuous with an upper wall portion 64C has a spherical wall portion 64D that is formed to have a curved spherical surface. The wall part facing the rear end 62A of the connection pipe 62 is a part in which a negative air intake pressure from the motor 12 acts. In this embodiment, this wall part is designed as the spherical 64D wall part to be improved in strength and stiffness, and thus, the air intake sound caused by the vibration of the wall part can be reduced.
    [0078] The air filter housing 61 is arranged under the state in which it is tilted forward. Specifically, the air filter housing 61 is arranged so that the connecting pipe 62, the split faces 61A and 61B and the plate-like element 70 are tilted back and up to the rear side of the vehicle, and the maintenance cover 72 is oriented towards the upper side of the rear of the vehicle, ie maintenance cover 72 is oriented towards the rear surface side of the front of the seat 36. Additionally, the plate-like element 70 is tilted back and up at an angle of inclination greater than the seat rail 20.
    [0079] As described above, in this embodiment, the plate-like element 70 is arranged to be tilted back and up (for example, tilted back and up by 45 ° or less with respect to the horizontal direction), and so on. , the size of the plate-like element 70 does not greatly affect the size of the air filter housing 61 in the direction of height. Consequently, the air filter housing 61 can be arranged close to the engine 12, and the air filter housing 61 can be arranged close to the engine 12 according to the demand characteristic of the engine 12, so that the characteristic of the engine 12 can be improved.
    [0080] Additionally, the air filter housing 61 is also arranged to be tilted forward according to the forward tilted motor 12, and thus, the connection pipe 62 and the injection regulator valve body 52 can be arranged linearly to be tilted forward to the air inlet opening 43A of the cylinder head 43 as shown in figure 1. Consequently, the resistance to the air intake can be reduced and thus, the air intake efficiency can be improved.
    [0081] The air filter box 61 is provided so that the lower air filter box 65 is located between the right and left seat rails, 20, above the central frame 19, and the upper part of it is arranged to be overlaid by the lower part of the rear of the fuel tank 35 in the side view as shown in figure 1. Specifically, as shown in figure 2, the upper part of the air filter housing 61 which is mounted to be tilted forward corresponds to the spherical wall part 64D, and a concave part of curved surface 35A which is concave upwards so as to prevent the spherical wall part 64D from being formed at the bottom of the fuel tank 35.
    [0082] A concave part 65B is formed at the bottom of the lower housing of the air filter 65 in order to avoid the upper cross member 27.
    [0083] A cylindrical container 59 for adsorbing evaporated fuel occurring from the fuel tank 35 is disposed in an overlapping part which is located in the space surrounded by the body of the injection regulator valve 52 and the air filter box 61 is superimposed by the main frames, right and left, 17 in the side view. As described above, the container 59 is arranged in the space surrounded by the main frames 17, the body of the injection regulating valve 52 and the air filter housing 61, and thus, the container 59 can be provided without affecting the appearance.
    [0084] Figure 3 is a side view showing the air intake device 60 and its periphery. Here, figure 3 shows a state in which the fuel tank 35, the left side cover 54, etc., are removed. Figure 4 is a front view of the upper part of the air intake device 60 from the front side.
    [0085] As shown in figures 3 and 4, the opening of the connection tube 63 is provided in the center towards the width of the upper box of the air filter 64 in the stepped part 64A, and a connection part of the resonator 62B open to the side of the left side surface is provided next to connection tube 62. A side wall part 64E covering the surface on the right side of connection tube 62 is formed opposite the connection part of resonator 62B at the front of the upper case of the air filter 64.
    [0086] The connection part of resonator 62B is formed so as to be tilted forward with respect to the horizontal direction, and a resonator 73 is connected with the connection part of resonator 62B. Resonator 73 is an air chamber that passes from the air filter housing 61 through connection pipe 62 and flows into the body of the injection regulator valve 52, and it has the function of reducing the intake sound of the air.
    [0087] Resonator 73 is arranged to be placed in the staggered part 64A, and it has a side chamber 73A increasing in size from the connection part of resonator 62B to the left side of the vehicle, and an upper chamber 73B that extends around the upper part of the connection pipe 62 and further extends to the vicinity of the side wall part 64E on the right side of the vehicle. Resonator 73 is attached and attached to a resonator attachment part 64F provided on the upper surface of side wall part 64E.
    [0088] As shown in figure 4, under the state in which the vehicle is lifted vertically, the bottom surface 73C of the upper chamber 73B of the resonator 73 is substantially horizontal, and the surface below 73D of the side chamber 73A is tilted to the side upper part of the external side in the direction of the vehicle width along the inclination of the connection part of resonator 62B. In addition, the bottom 62C on the inner surface of the resonator connection part 62B and the bottom surface 73D of the side chamber 73A are continuous with each other, and are designed to have substantially the same tilt angle A. slope A is set to be greater than a predetermined angle at which the vehicle is tilted to the left (the right side in figure 4) when the two-wheeled motor vehicle is parked using the side stand 39. That is, even under the parking state using the side stand 39, the connection part of the resonator 62B and the bottom surface 73D are kept under the state in which the external parts of the same are tilted upwards. Consequently, even when drops of water or the like occur on the resonator 73 when parking using side stand 39, drops of water or the like flow to the side of the connecting tube 62 along the connecting part of the resonator 62B and from the bottom surface 73D, so water, etc., is not stored in resonator 73.
    [0089] As shown in figure 3, the fastening part on the side of the box 75 to fix the air filter box 61 next to the vehicle body structure 11 is formed on the side surface of the upper air filter box 64. A box-side fixing part 75 is formed in one location on each of the front and rear parts on each of the right and left side surfaces of the upper air filter box 64, and thus, the fixing parts on the side box 75 are formed in a total of four places. Each fastening part on the box side 75 of the rear is formed at the end of a leg part 76 extending downwardly from the side surface. The seating face of each fastening part on the box side 75 is formed parallel to the upper surface of the seat rail 20. Each fastening part on the side of the box 75 is formed integrally with the upper box of the air filter 64 when the box upper air filter 64 is molded with resin. Therefore, each fastening part on the side of the box 75 has high positioning accuracy.
    [0090] Additionally, the fastening part on the side of the frame 20A that is formed on the side of the body structure of the vehicle 11 in connection with the fastening part on the side of the box 75 is provided at each of the two locations on the upper surface of each of the seat rails, right and left, 20, that is, fully proportioned in the four places. When the air filter box 61 is mounted next to the vehicle body structure 11, the air filter box 61 can be mounted on the seat rail 20, and the fastening parts on the side of the box 75 and the corresponding part of fastening on the side of the frame 20A can be secured with each other by four nut screws 77 which are tightened from the upper side. The air filter housing 61 can be secured by tightening the nut bolts 77 from the upper side of the seat rails 20 as described above, so that assembly work can be facilitated and productivity can be improved.
    [0091] Figure 5 is a plan view showing the periphery of the maintenance cover 72 when the periphery of the maintenance cover 72 is seen from the upper side. Figure 6 is a view showing the periphery of the maintenance cover 72 when the periphery of the maintenance cover 72 is seen from the rear position facing the maintenance cover 72. Here, figures 5 and 6 show a state in which the seat 36 is removed.
    [0092] As shown in figures 2, 5 and 6, a support fixing part of the plate type 35B projecting backwards from the rear is formed in the fuel tank 35, and the support fixing part 35B is located above the seat rails 20 and the side covers 54. A support on the side of the tank 78 (rear fixing part) for fixing the fuel tank 35 next to the seat rails 20 is fixed next to the support fixing part 35B by welding .
    [0093] As shown in figure 6, the support on the side of the tank 78 is designed in an arc-like shape so that it projects upward in a posterior view, and has a base part of the plate type 78A fixed next to the rear end the fuel tank 35 and the arm parts 78B extending downwardly from the right and left ends of the base part 78A to the seat rails 20, respectively. The support on the side of the tank 78 is located above the maintenance cover 72, and covers the upper side of the maintenance cover 72.
    [0094] A seat part 78C obtained by folding the arm part 78B outwards in the width direction and by flattening the folded part is provided near the lower end of each arm part 78B. Each of the right and left seat parts 78C extends to the upper surface of each seat rail 20 so as to bore into the lower side of the side cover 54 projecting to the upper side of each seat rail 20. The fuel tank 35 is attached to the seat rails 20 by tank securing nut bolts which are inserted through the left and right seat parts 78C.
    [0095] A side support of the plate type 20B is provided on the upper surface of each of the right and left seat rails 20. As shown in figure 6, the fuel tank 35 is mounted with rubber pads on the seat rails 20 by tightening the tank securing nut bolts 79 on the right and left sides of the tank under the condition in which the rubber pads 80 are interposed between each of the right and left supports on the side of the frame 20B and the bottom surface of the part seat 78C and between the tank securing nut screw 79 and the upper surface of the seat part 78C. Therefore, the vibration in the middle of the right and left seat rails 20 and the fuel tank 35 can be reduced by the rubber pads 80.
    [0096] In this embodiment, the fuel tank 35 is fixed by using the arch type support on the side of the tank 78 provided next to the rear of the fuel tank 35, whereby a space K is ensured on the rear side of the tank of fuel 35 and below the support on the tank side 78 and the seat 36 which is continuous with the support on the tank side 78 and extends backwards. This space K is provided so that it faces the maintenance opening 71 of the maintenance cover 72, and it is designed in a size such that the plate-like element 70 can be removed from the upper rear side or placed inside the front side lower along the normal line to the surface of the cover portion 72A of the maintenance cover 72 when the plate-like element 70 is assembled or disassembled through the maintenance opening 71.
    [0097] As shown in figure 2, the cover portion 72A of the maintenance cover 72 is arranged to be tilted at an angle such that the cover portion 72A faces the rear surface side of the seat 36. As shown in the figures 5 and 6, the cover part 72A is formed to be less in width than the width between the right and left rails of the seat 20, and the cover part 72A is arranged between the right and left rails of the seat 20. Additionally, the cover fastening parts 72D are provided at both ends in the width direction at the bottom of the cover part 72A. The cover fastening parts 72D are screw-type fastening parts and raised substantially vertically against the surface of the cover part 72A.
    [0098] As shown in figure 6, the guide part on the cover side 72B and the hook parts 72C are provided next to the side of the rear surface of the cover part 72A. The guide part on the cover side 72B is located in the center towards the width of the cover part 72A, and the hook parts 72C are located in two locations on both ends of the direction towards the width of the cover part 72A.
    [0099] A lower cross member of the seat 26 is provided on the rear side of the maintenance cover 72, and the fastening part of the cover 72D and the lower cross member of the seat 28 are arranged to have a predetermined position relationship. Specifically, as shown in figure 2, the cover fixing part 72D is arranged in a position relationship such that the axial line T of the cover fixing part 72D passes through the upper side of the lower seat cross member 26 and the line axial T does not interfere with the lower cross member of the seat 26. That is, as shown in figure 6, when the maintenance cover 72 is seen from the rear side facing the cover part 72A, the lower cross member of the seat 26 and the cover fastening parts 72D are not overlapping, and the lower cross member of the seat 26 is not in the path of the cover fastening parts 72D, so that the fastening parts of the cover 72D can be readily removed and removed in the direction axial line T.
    [00100] Additionally, since the maintenance opening 71 is located higher than the axial line T, the plate-like element 70 does not collide with the lower cross member of the seat 26 even when the plate-like element 70 is assembled / disassembled through the maintenance opening 71. Therefore, the plate-type element 70 can be readily mounted / disassembled through the space K. Additionally, the space K does not accommodate any part that is overlapped by the plate-type element 70 when the plate-like element 70 is moved in the normal direction to the cover portion 72A from the maintenance opening 71.
    [00101] As described above, according to this construction, the space K is ensured below the support on the side of the tank 78 and the seat 36, and also the lower cross member of the seat 26 does not prevent the assembly / disassembly of the fixing parts the cover 72D and the plate-like element 70. Therefore, maintenance of the plate-like element 70 can be performed easily. The K space is a space located below the seat 36, and no other parts are arranged in the K space. Therefore, the height of the seat 36 can be reduced by the amount corresponding to a space for other pieces that are not provided in the K space.
    [00102] Additionally, a battery 9 is disposed outside the space K on the rear side of the lower cross member of the seat 26.
    [00103] The detailed construction of the air intake device 60 will be described below.
    [00104] Figure 7 is a side view partially in cross-section of the air intake device 60. Figure 8 is a plan view showing the lower housing of air filter 65. Here, figure 8 shows the support of element 68 dotted / dashed line along with the lower air filter housing 65.
    [00105] As shown in figure 8, the lower case of the air filter 65 is formed to be substantially rectangular in top view, and the width of the lower case of the air filter 65 is smaller as the position of the same approaches the back of it. As indicated by the dotted / dashed line, the element holder 68 is designed to have substantially the same shape as the bottom air filter box 65 from above, and secured close to the top of the lower air filter box 65.
    [00106] As shown in figures 7 and 8, several fastening parts of the lower housing 81 that project outwards from the wall part on the outer peripheral side of the lower housing of the air filter 65 are formed on the upper housing bottom of the air filter 65. Additionally, several fastening parts of the upper box 82 are formed in positions corresponding to the fastening parts of the lower box 81 on the wall part not outer peripheral side of the lower part of the upper box of the air filter 64.
    [00107] The air filter housing 61 is assembled by tightening the screws 83 to secure the lower housing fixing parts 81 and the upper housing fixing parts 82 under the state in which the support of element 68 is sandwiched between the lower air filter housing 65 and upper air filter housing 64.
    [00108] As shown in figures 2 and 7, a convex part of the lower surface 84 raised downwards is provided next to the outer edge part of the lower surface of the support of the element 68. A convex part of the upper surface 85 raised upwards is also provided. provided with the outer edge part of the upper surface of the support of the element 68. The convex part of the lower surface 84 and the convex part of the upper surface 85 are formed over the entire periphery of the outer edge part of the support of the element 68.
    [00109] A slot groove 86A in which the convex part of the lower surface 84 of the element support 68 is formed is formed in the upper edge part of the lower air filter housing 65. A slot groove 86B in which the convex part the upper surface 85 of the support of the element 68 is fitted also is formed on the lower edge of the upper housing of the air filter 64.
    [00110] As described above, the support of element 68 is mounted while the convex part of the lower surface 84 and the convex part of the upper surface 85 are engaged in the slot grooves 86A and 86B, respectively. Therefore, the support of the element 68 can be safely positioned, and also the sealing of the air filter housing 61 can be improved.
    [00111] Figure 9 is a side view showing the plate-type element 70 and the element support 6. Figure 10 is a view showing the plate-type element 70 and the element support 68 when they are seen from a view from behind the vehicle.
    [00112] As shown in figures 2, 9 and 10, the plate-like element 70 has a plate-like frame part 87 provided next to the upper part of the plate-like element 70, and a body part of the plate-like element 88 which is provided to extend downwardly from the frame part 87.
    [00113] A front projection 87A projecting forward is formed at the front end of the frame part 87. The front projection 87A is provided at each of the two locations in the direction of the width of the plate-like element 70.
    [00114] A flexible plate-like part 87B that is formed by the curvature of the rear end of the frame part 87 downwards is provided to the rear end of the frame part 87, and a rear projection 87C projecting backwards is formed on the surface rear of flexible part 87B. The flexible 87B can flex forward when it is forced forward by pressure from the rear side or the like. As shown in figure 10, each of the flexible part 87B and the rear projection 87C is provided at each of two locations in the direction of the width of the plate-like element 70.
    [00115] Additionally, as shown in figures 9 and 10, 87D guide rails projecting outwards are formed on both side surfaces in the direction of the width of the frame part 87. The 87D guide rails are provided as rails in order to be continuous in the forward and backward direction of frame part 87.
    [00116] The support of the element 68 has the support parts of the element 69 on the underside side of the same, and the support part of the element 69 has a front locking part 89 projecting downwards from the front end of the support of the element 68, and a rear engaging part 90 projecting downwardly from the rear end of the support of the element 68.
    [00117] A central bore part 89A in which the front projection 87A of the plate-like element 80 is fitted is formed in the front engaging part 89 of the element support 68, and a rear support part 90A in which the rear projection 87C of the plate-like element 70 is engaged is formed in the rear fitting part 90. As shown in figure 10, each of the front fitting part 89 and the rear fitting part 90 is provided at each of the two locations in the direction the width of the element support 68.
    [00118] The support of the element 68 has an orientation part of the element projecting downwards 91 in the intermediate part in the forward and backward direction between the front projection 87A and the rear locking part 90. The orientation part of the element 91 it is formed in a lower position than the position in which the plate-like element 70 is fixed, and it has a function of holding the plate-like element 70 when the plate-like element 70 is assembled / disassembled.
    [00119] As shown in figure 10, a pair of right and left guiding parts of element 91 are provided in the width direction, and they have 91A extension parts extending downwardly from the right and left end parts of the bracket of the element 68, and the guide parts 91B formed by the curvature of the respective lower ends of the extension parts 91A inwardly in the width direction. The guide parts 91B extend in the forward and backward direction while tilted back and upward, and the angle of inclination thereof is set to be less than the angle of inclination of the plate-like element 70 as shown in the figure 2.
    [00120] The guide part 91B of the support of the element 68 is a part for receiving the guide rail 87D of the element of the plate type 70. That is, the element of the plate type 70 that is established in order to pass between the right parts and element orientation left 91 is pushed into the element support 68 while the lower surfaces 87E of the guidance rails 87D slide on the upper surfaces 91c of the guidance parts 91B.
    [00121] The front projections 87A are inserted into the front bore parts 89A of the front insert parts 89 of the element support 68 and then pushed up to a fixing position by the guide part on the cover side 72B of the maintenance cover 72 , and the rear projections 87C of the flexible parts 87B are engaged in the rear bore parts 90A of the rear interlocking parts 90, whereby the plate-like element 70 pushed into the support of the element 68 can be fixed. Specifically, the plate-like element 70 is pushed upward by the guide portion on the cover side 72B under the state in which the front projections 87A are engaged in the front bore parts 89A of the front fitting parts 89, and in turn overturns upwards around the front hole parts 89A and reach the fixing position. In this clamping position, the plate-like element 70 is pushed against the front fastening parts 89 by the tip 72F of the guiding part on the side of the cover 72B, and also pushed against the lower surface of the element support 68 by the upper surface part. 72G of the orientation part on the cover side 72B. Consequently, the plate-like element 70 can be brought into direct contact with the support of the element 68, and the dirty side and the clean side can be secured, hermetically sealed in relation to each other.
    [00122] As shown in figure 7, the maintenance cover 72 is secured so that it can be turned around the groove part 72E1 under the state in which the groove part 72E1 on the top of the maintenance cover 72 is hooked next to the upper part 71B of the fastening part 71A of the maintenance opening 71. Therefore, when the maintenance cover 72 is secure, the tip of the guide part on the side of the cover 72B moves upwards as if it draws an arcuate center as indicated by an X center in figure 7.
    [00123] The position of the flexible part 87B of the plate-like element 70 that was guided by the orientation part of the element 91 and pushed into the support of the element 68 is within the location X indicated by a dotted / dashed line in figure 7, and overlaid by the rotation band of the orientation part on the side of the cover 72B. That is, the plate-like element 70 is pushed upwards by the guide part on the side of the cover 72B when the maintenance cover 72 is connected, whereby the plate-like element 70 is established in the clamping position. Consequently, the plate-like element 70 can be attached at the same time that the maintenance cover 72 is connected.
    [00124] Additionally, when the flexible part 87B is pushed upwards by the guide part on the side of the cover 72B, the rear projections 87C contact the rear interlocking parts 90, whereby the flexible parts 87B curve forward . When the plate-like element 70 is further pushed upward to fit the rear projections 87C within the rear bore parts 90A, the flexible parts 87B are reverted to the original state.
    [00125] Additionally, the upper part of the maintenance cover 72 is fixed when the hook parts 72c are hooked next to the inner wall 66B of the upper part of the air intake duct opening 66, and thus, a fixation part using a screw or the like can be eliminated.
    [00126] Here, the assembly / disassembly procedure for the plate-type element 70 will be described with reference to figures 2, 7, 9 and 10.
    [00127] When the plate-like element 70 is assembled, the seat locking mechanism 36 described above is first released to disassemble the seat 36, and the maintenance cover 72 is arranged outwards through the K space. Subsequently, a the hand is inserted into the K space to release the fixing of the fixing parts of the cover 72D and removing the fixing parts of the cover 72D and the maintenance cover 72. Subsequently, the plate-like element 70 is inserted from the maintenance opening 71 to place the plate-like element 70 in the element-68 holder. At this time, the plate-like element 70 is guided directly in the direction of an arrow in figure 9 because the 87D guide rails are adjusted in relation to the position by the orientation 91B, and thus, the front projections 87A are securely fitted within the front bore parts 89A. Therefore, the plate-like element 70 can be safely and simply placed close to an exact position.
    [00128] Additionally, by mounting the maintenance cover 72 in the maintenance opening 71, the plate-like element 70 is pushed into the fixing position by the orientation part on the cover side 72B, and the rear projections 87C are fitted in the parts rear hole 90A, whereby the plate-like element 70 can be perfectly secured. Thereafter, the fixing parts of the cover 72D can be tightened, and the seat 36 can be mounted.
    [00129] When the plate-type element 70 is disassembled, the maintenance cover 72 is first removed according to the same procedure as the assembly work. Subsequently, the flexible parts 87B located within the maintenance opening 71 are pressed to release the fit between the rear projections 87C and the rear bore parts 90A. When the fit between the rear projections 87C and the rear bore parts 90A is released, the plate-like element 70 falls as a function of its own weight, and it falls to a position where it is held by the guiding parts of element 91 After that, the plate-like element 70 is removed from the maintenance opening 71 through the space K, whereby the plate-like element 70 can be disassembled. At this time, the 87D guide rails are guided to the space K side by the guide parts 91B, so that the plate-like element 70 can be smoothly removed.
    [00130] According to this embodiment, the maintenance opening 71 and the maintenance cover 72 are provided so that they face the front of the seat 36, and also the space K is provided between the maintenance cover 72 and the seat 36. Therefore, by dismounting the seat, maintenance cover 72 and the plate-type element are allowed to be mounted and dismounted through the K space, whereby maintenance can be easily performed. Here, the state in which the maintenance cover 72 faces the seat 36 means that the normal surface line of the cover portion 72A is superimposed with at least a portion of the seat 36 in side view. That is, the plate-like element 72 can be simply mounted / dismounted through the K space along the normal line of the surface of the cover part 72A, and it is unnecessary for the maintenance cover 72 to be perfectly oriented towards the seat 36 .
    [00131] As described above, according to the embodiment to which the present invention is applied, the plate-like element 70 is arranged to be tilted back and upwards, whereby the size of the plate-like element 70 it does not affect the size towards the height of the air filter housing 61. Therefore, the air filter housing 61 can be compactly arranged in the height direction. Consequently, the air filter housing 61 can be arranged to be close to the engine 12 according to the demand characteristic of the motor 12, and also the height of the seat above the air filter housing 61 can be reduced. In addition, the maintenance cover 72 is provided so that it faces the seat 36 at the rear side of the fuel tank 35. Therefore, even when the air filter housing 61 is arranged close to the engine 12, the fuel tank 35 it does not obstruct, so that the plate-like element 70 can be disassembled from the seat side 36 for maintenance without displacing or disassembling the fuel tank 35, and thus, maintenance performance can be improved. Additionally, only the space K towards which the maintenance cover 72 faces is formed below the seat 36, and thus, the height of the seat 36 can be reduced, so that the driving performance can be improved.
    [00132] Additionally, under the state in which the seat 36 is mounted, the maintenance cover 72 is located below the seat 36, and thus, it is not seen from the outside, so that the appearance can be improved.
    [00133] The plate-like element 70 is arranged in the lower air filter box 65 of the air filter box 61 which is constructed by the upper and lower division boxes. Therefore, when the plate-type element is assembled / disassembled, dust adhering to the plate-type element 70 can be prevented from falling close to the side of the upper box of the air filter 64, that is, the clean side, and thus the maintenance performance can be improved. In addition, the maintenance cover 72 is arranged on the side of the lower housing of the air filter 65, that is, the dirty side into which the outside air is introduced. Therefore, the quality of being impervious to air between the maintenance cover 72 and the lower housing of the air filter 65 can be relatively easily managed, so that productivity can be improved.
    [00134] Additionally, when the plate-like element 70 is inserted or removed through the maintenance cover 72, the plate-like element 70 can be guided into position using the element 91 guiding parts of the element 68 support Thus, the assembly / disassembly performance of the plate-like element 70 can be improved.
    [00135] Additionally, when the maintenance cover 72 is attached next to the maintenance opening 71, the plate-like element 70 is pushed upwards by the guide part on the side of the cover 72B and thus, the plate-like element 70 is also simultaneously fixed, so that maintenance performance can be fixed. In addition, when the maintenance cover 72 is removed, the plate-type element is allowed to fall by its own weight until it reaches the position in which it is held by the guiding parts of element 91, so that the plate-type element 70 can be easily removed.
    [00136] Still in addition, the hook parts 72c are provided next to the upper part of the maintenance cover 72, and the upper part of the maintenance cover 72 is not fixed by any fastening part or the like. Therefore, the maintenance cover 72 can be mounted while rotated with the groove portion 72E1 of the maintenance cover 72 being used as fulcrums, so that the plate-like element 70 can be pushed upwards by the guide parts on the cover side. 72B, so that the plate-like element 70 can be pushed up to the clamping position. In addition, the hook parts 72C are provided near the upper part of the maintenance cover 72, so that it is not necessary to provide any fastening part near the upper part and thus, the number of pieces of fastening parts can be reduced. Therefore, productivity can be improved, and weight savings can be achieved.
    [00137] All the fixing parts of the air filter box 61 next to the seat rails 20 are provided as fixing parts on the side of the box 75, and the fixing parts on the side of the box 75 are formed integral with the upper box. of the air filter 64. Therefore, the positioning accuracy of each of the fastening parts on the side of the box 75 can be improved, and productivity can be improved. In addition, the air filter housing 61 can be mounted by tightening the fastening parts on the housing side 75 from the upper side of the seat rails 20, so that assembly work can be facilitated and productivity can be additionally enhanced.
    [00138] Additionally, the wall part of the upper housing of the air filter 64 in which the negative air intake pressure of the engine 12 acts, is designed as the spherical wall part 64D to increase the stiffness of the wall part, so so that the air intake sound caused by the vibration of the wall part can be reduced.
    [00139] Furthermore, the arch support on the side of the tank 78 is provided for the support fixing part 35B on the rear side of the fuel tank 35, and thus, the space K through which the maintenance cover 72 and the plate-like element 70 can pass can be secured on the rear side of the fuel tank 35. Additionally, the support on the tank side 78 also functions as a member to connect a pair of right and left seat rails 20, and thus, the strength and rigidity of the seat rails 20 can be improved.
    [00140] The above embodiment is an example to which the present invention is applied, and the present invention is not limited to the above embodiment.
    [00141] In the above embodiment, the air filter box 62 is constructed by the two upper and lower division boxes, and has the upper air filter box 64 and the lower air filter box 65. However, the present invention it is not limited to this style. For example, the plate-like element 70 can be provided in the integrally formed air filter box, the air-filter box can be arranged so that the plate-like element 70 is tilted back and up, and the cover maintenance provided at the rear of the air filter housing can be provided so that it faces the seat 36. In addition, it goes without saying that the detailed construction of the two-wheeled motor vehicle can be arbitrarily modified. Description of Reference Numbers 10 two-wheeled motor vehicle 11 vehicle body structure 12 engine (internal combustion engine) 20 seat rail (frame member) 20A frame side fixing part 35 fuel tank 36 seat 61 box air filter 62 A, 61B split face 63 connection tube 64 opening for connection tube 64B rear wall part (wall part) 65 upper air filter housing 66 lower air filter housing 67 opening for the air inlet duct 68 element holder 70 plate-type element 70A upper cleaning face (cleaning face) 70B lower cleaning face (cleaning face) 72 maintenance cover 72B guide part on cover side 72C hook part 72D cover fastening part (fastening part) 75 box fastening part 78 tank side support (rear fastening part) 91 WF element orientation part front wheel WR rear wheel
    权利要求:
    Claims (5)
    [0001]
    1. Two-wheeled motor vehicle (10) having a vehicle body structure (11) to hold a front wheel (WF) so that the front wheel (WF) can be driven, and hold a rear wheel (WR) of so that the rear wheel (WR) is oscillating, a fuel tank (35) arranged on an upper front side of the vehicle body structure (11), a seat (36) arranged behind the fuel tank (35) and above of the vehicle body structure (11), an internal combustion engine (12) suspended on the bottom side of the fuel tank (35) and on the bottom side of the vehicle body structure (11), an air filter housing ( 61) to clean the external intake air and supply air to the internal combustion engine (12), a plate-like element arranged inside the air filter box (61), and a maintenance cover (72) that forms a part air filter housing (61) and used when the plate-type element (70) is assembled / disassembled, characterized by the fact that that the internal combustion engine (12) is a four-stroke engine in which a geometric axis of the cylinder is tilted forward; the air filter housing (61) is arranged on a rear side of the cylinder head (43) provided at the top of the cylinder and is arranged below the fuel tank (35) and constructed by two vertically divisional boxes from an upper housing of the air filter (64) formed on a clean side and a lower air filter box (65) formed on a dirty side, and an air intake duct (67) of the air filter box (61) is provided below the maintenance cover (72); an opening (63) for a connection pipe to supply intake air to the internal combustion engine (12) is formed in the upper air filter housing (64), an opening (66) for an air intake duct for introducing external air into the air filter housing (61) is formed in the lower air filter housing (65), and the plate-type element (70) and the maintenance cover (72) are arranged in the lower filter housing of air (65). an element support (68) is interposed between the dividing faces of the upper air filter housing (64) and the lower air filter housing (65); a guiding part of the element (91) to support the plate-like element (70) is formed on a lower part of the element support (68), the plate-like element (70) being arranged to be tilted backwards and upwards in a side view of the vehicle, so that the cleaning face of the vehicle faces upwards and downwards. below a front end of the seat (36), a space (K) in which other parts are not arranged is formed between a pair of right and left rails (20) to support the seat (36); the maintenance cover (72) is provided to face the space (K), the maintenance cover (72) is provided below the seat (36) so that it faces the seat (36) so that the element plate-type (70) can be pulled out by removing the seat (36); the guiding part of the element (91) is formed below the plate-like element (70) to be tilted back and up at an angle less than an angle of inclination of the plate-like element (70) and is provided with a guide part (91B) for guiding the plate-like element (70) in a direction of pushing and in a direction of pulling out towards the space side (K); an orientation part on the cover side (72B) projecting into an air filter housing (61) is formed in the maintenance cover (72), the orientation part on the cover side (72B) being formed so as to push up the plate-like element (70) to a fixing position under a state in which the maintenance cover (72) is attached to the air filter housing (61); and the guiding part of the element (91) supports the plate-like element (70) which falls under its own weight by pushing up the guiding part on the cover side (72B) is released and the plate-like element (70 ) is disassembled.
    [0002]
    2. Motor vehicle with two wheels, according to claim 1, characterized by the fact that the maintenance cover (72) has a hook part (72C) in an upper part of it, and has a fixing part (72D ) at the bottom.
    [0003]
    Motor vehicle with two wheels, according to claim 1 or 2, characterized by the fact that all the fixing parts on the side of the box (75) to fix the air filter box (61) next to the body structure of the vehicle (11) are formed in the upper air filter housing (64), and a fastening part on the side of the frame (20A) on the side of the vehicle frame (11) next to which the air filter housing (61 ) is fixed and arranged on the upper surface of the vehicle body structure.
    [0004]
    4. Self-propelled two-wheeled vehicle according to any one of claims 1 to 3, characterized by the fact that a wall part (64D) of the upper air filter housing (64) which faces the connection pipe ( 62) connected with the opening (63) of the connection tube is formed in a spherical shape.
    [0005]
    5. Motor vehicle with two wheels according to any one of claims 1 to 4, characterized in that the body structure of the vehicle (11) comprises at least one pair of right and left frame members (20), and the fuel tank (35) has a rear fixing part (78) that is formed in an arc shape in rear view on a rear part of it, and is fixed next to the pair of left and right frame members (20 ) through both end parts in the direction of the vehicle width of the rear mounting (78).
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112012004234B1|2020-09-29|MOTOR VEHICLE WITH TWO WHEELS
    US8342282B2|2013-01-01|Motorcycle
    TWI387541B|2013-03-01|Canister mounting structure in motorcycle
    JP3970725B2|2007-09-05|Engine fuel injection system
    JP5864117B2|2016-02-17|Arrangement structure of motorcycle canister
    BRPI1003967A2|2013-01-08|motorcycle fuel supply system
    US6920950B2|2005-07-26|Air intake system structure of scooter type vehicle
    US5145023A|1992-09-08|Motorcycle fuel tank providing multiple enhancements
    BRPI1003979A2|2013-02-05|motorcycle fuel supply system
    BRPI1003589A2|2013-01-08|motorcycle fuel supply system
    BRPI1003722A2|2013-01-08|motorcycle fuel supply system
    BRPI1005256B1|2019-06-04|VEHICLE TYPE LAMBRET
    JP6769242B2|2020-10-14|Air cleaner placement structure for saddle-mounted vehicles
    US8813724B2|2014-08-26|Evaporated fuel treatment device for motorcycle
    US9518548B2|2016-12-13|Fuel supply apparatus of internal combustion engine
    JP4592017B2|2010-12-01|Air cleaner for motorcycles
    BRPI1003253B1|2019-10-22|saddle mount type vehicle
    BR102013019998A2|2015-03-17|Saddle Mount Vehicle Air Intake Device
    US20150007786A1|2015-01-08|Fuel supply apparatus of internal combustion engine
    US20090065280A1|2009-03-12|Exhaust pipe for a vehicle
    JP5835684B2|2015-12-24|Evaporative fuel treatment equipment for motorcycles
    US20120222414A1|2012-09-06|Exhaust purifying apparatus of saddle-ride type vehicle
    JP2021154902A|2021-10-07|Saddle-riding type vehicle
    JP2003072630A|2003-03-12|Side cover joining structure for motorcycle
    JP3965888B2|2007-08-29|Secondary air supply device for V-type engine
    同族专利:
    公开号 | 公开日
    JP5399168B2|2014-01-29|
    EP2472094A4|2013-04-10|
    AU2010288005B2|2014-05-08|
    JP2011047294A|2011-03-10|
    EP2472094A1|2012-07-04|
    BR112012004234A2|2016-04-05|
    CO6430488A2|2012-04-30|
    EP2472094B1|2015-01-28|
    ZA201201068B|2013-05-29|
    WO2011024368A1|2011-03-03|
    US8302722B2|2012-11-06|
    AU2010288005A1|2012-02-23|
    CN102597482B|2015-09-30|
    US20120145470A1|2012-06-14|
    CN102597482A|2012-07-18|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPS6254993B2|1979-06-08|1987-11-17|Yamaha Motor Co Ltd|
    JPH0526029B2|1983-11-05|1993-04-14|Yamaha Motor Co Ltd|
    JP2581926B2|1987-08-22|1997-02-19|本田技研工業株式会社|Air cleaner for internal combustion engine|
    JPH01208559A|1988-02-12|1989-08-22|Suzuki Motor Co Ltd|Air cleaner device for engine of motorcycle|
    JP3109124B2|1991-04-26|2000-11-13|スズキ株式会社|Motorcycle air cleaner device|
    JP3251953B2|1991-07-17|2002-01-28|本田技研工業株式会社|Air cleaner for motorcycles and tricycles|
    SE9304305L|1992-12-30|1994-07-01|Hyundai Motor Co Ltd|Air cleaner device for vehicles|
    JP3175442B2|1993-11-11|2001-06-11|スズキ株式会社|Motorcycle air cleaner|
    JP3466043B2|1997-03-21|2003-11-10|本田技研工業株式会社|Air cleaner device for vehicle engine|
    GB2348153A|1999-03-25|2000-09-27|Draftex Ind Ltd|Easily removable air filter for internal combustion engine air intake.|
    JP2001329921A|2000-03-17|2001-11-30|Toyo Roki Mfg Co Ltd|Air cleaner|
    JP2001280208A|2000-03-31|2001-10-10|Honda Motor Co Ltd|Air cleaner mounting structure for motorcycle|
    JP4079689B2|2002-05-17|2008-04-23|和興フィルタテクノロジー株式会社|Air cleaner and its filter element|
    JP2006088895A|2004-09-24|2006-04-06|Yamaha Motor Co Ltd|Saddle riding type vehicle|
    US8157041B2|2007-03-22|2012-04-17|Suzuki Kabushiki Kaisha|Intake device for motorcycle|
    JP5142781B2|2008-03-27|2013-02-13|本田技研工業株式会社|Motorcycle|JP5624780B2|2010-03-23|2014-11-12|本田技研工業株式会社|Air cleaner device|
    CN102996296B|2011-09-16|2015-07-01|雅马哈发动机株式会社|Motorcycle|
    JP5912589B2|2012-01-31|2016-04-27|本田技研工業株式会社|Air cleaner device for vehicle|
    JP5928042B2|2012-03-21|2016-06-01|スズキ株式会社|Air cleaner for motorcycle|
    JP5893459B2|2012-03-22|2016-03-23|本田技研工業株式会社|Fuel tank and radiator arrangement structure for saddle-ride type vehicles|
    CN104321244B|2012-05-28|2017-03-08|本田技研工业株式会社|Straddle-type vehicle|
    JP5961492B2|2012-08-31|2016-08-02|本田技研工業株式会社|Rear structure of saddle riding type vehicle|
    JP6083601B2|2013-03-29|2017-02-22|本田技研工業株式会社|Air cleaner structure in saddle riding type vehicle|
    DE102013215607A1|2013-08-07|2015-03-05|Mahle International Gmbh|Fresh air system|
    JP5852071B2|2013-09-26|2016-02-03|本田技研工業株式会社|Air intake structure for saddle-ride type vehicles|
    JP5950214B2|2014-01-15|2016-07-13|本田技研工業株式会社|Air cleaner for saddle-ride type vehicle engine|
    DE102014207167A1|2014-04-15|2015-10-15|Bayerische Motoren Werke Aktiengesellschaft|Intake device with formally integrated Luftführungsansaugkanal|
    US10160509B2|2015-03-31|2018-12-25|Honda Motor Co., Ltd.|Motorcycle|
    JP6140753B2|2015-03-31|2017-05-31|本田技研工業株式会社|Saddle riding vehicle|
    JP2017105286A|2015-12-08|2017-06-15|スズキ株式会社|Saddle-riding type vehicle|
    JP6629656B2|2016-03-30|2020-01-15|本田技研工業株式会社|Saddle-type vehicle|
    JP6364446B2|2016-06-30|2018-07-25|本田技研工業株式会社|Motorcycle|
    JP6456991B2|2017-02-27|2019-01-23|本田技研工業株式会社|Intake structure of air cleaner for automobile|
    WO2018197625A1|2017-04-28|2018-11-01|Mann+Hummel Gmbh|Filter device, particularly an air filter, and method for maintenance of a filter device and use of same|
    KR102347737B1|2017-12-15|2022-01-06|현대자동차주식회사|Air cleaner assembly of vehicle having support members|
    JP6812472B2|2019-01-30|2021-01-13|本田技研工業株式会社|Intake device structure for saddle-riding vehicles|
    法律状态:
    2019-01-15| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-09-03| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-05-12| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-09-29| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 29/09/2020, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2009-194735|2009-08-25|
    JP2009194735A|JP5399168B2|2009-08-25|2009-08-25|Motorcycle|
    PCT/JP2010/004373|WO2011024368A1|2009-08-25|2010-07-05|Two-wheeled motor vehicle|
    [返回顶部]