WO2017018246A1 - 鞍乗り型車両 - Google Patents
鞍乗り型車両 Download PDFInfo
- Publication number
- WO2017018246A1 WO2017018246A1 PCT/JP2016/070988 JP2016070988W WO2017018246A1 WO 2017018246 A1 WO2017018246 A1 WO 2017018246A1 JP 2016070988 W JP2016070988 W JP 2016070988W WO 2017018246 A1 WO2017018246 A1 WO 2017018246A1
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- WO
- WIPO (PCT)
- Prior art keywords
- canister
- main frame
- vehicle
- intake passage
- view
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J40/00—Arrangements of air cleaners specially adapted for cycles
- B62J40/10—Arrangements of air cleaners specially adapted for cycles characterised by air duct arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J37/00—Arrangements of fuel supply lines, taps, or the like, on motor cycles or engine-assisted cycles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J43/00—Arrangements of batteries
- B62J43/20—Arrangements of batteries characterised by the mounting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K11/00—Motorcycles, engine-assisted cycles or motor scooters with one or two wheels
- B62K11/02—Frames
- B62K11/04—Frames characterised by the engine being between front and rear wheels
Definitions
- the present invention relates to a saddle-ride type vehicle such as a motorcycle.
- This application claims priority based on the Chinese patent application 2015104409944.5 for which it applied on July 24, 2015, and uses the content here.
- a single main frame is coupled to a head pipe that supports the front wheels in a steerable manner.
- the main frame is connected to main engines such as an engine, a swing arm for supporting the rear wheels, a fuel tank, and a seat frame. It is known that various parts are supported.
- the main frame of the saddle-ride type vehicle has a rear extension portion extending from the head pipe to the vehicle body rear side, and a lower extension portion extending downward from the rear end portion of the rear extension portion.
- An engine is disposed below the rear extension, and a fuel tank is disposed above the rear extension.
- the front end portion of the swing arm is swingably supported via a pivot frame on the lower end side of the downward extension portion, and a seat frame that supports the passenger seat is coupled to the upper end side of the downward extension portion. ing.
- an air cleaner is disposed at the rear of the lower extension portion of the main frame, and an intake passage that connects the air cleaner and the intake portion of the engine is located on one side of the lower extension portion in the vehicle width direction.
- a device has been devised in which a canister is arranged around the outside and a canister for collecting the evaporated fuel in the fuel tank is arranged outside the left and right sides of the downward extending portion in the vehicle width direction.
- the canister is disposed so as to overlap the downwardly extending portion of the main frame in a side view of the vehicle.
- the purge pipe connected to the canister is connected to the vicinity of the engine in the intake passage over the rear extension of the main frame.
- the canister is disposed so as to overlap with the downwardly extending portion of the main frame in a side view of the vehicle, and the purge pipe that connects the canister and the intake passage is the rear extending portion of the mainframe. It is piped over the upper side. For this reason, in the saddle riding type vehicle described above, the routing of the purge pipe is complicated.
- An aspect of the present invention aims to provide a saddle-ride type vehicle that can simplify the routing of the purge pipe.
- a saddle-ride type vehicle includes a head pipe that supports a front wheel in a steerable manner, a rear extending portion that extends rearward from the head pipe, and a rear extending portion.
- At least one main frame having a downward extending portion extending downward from the end portion, an engine disposed below the rearward extending portion of the main frame, and in front of the downward extending portion;
- a fuel tank disposed above the rear extension of the main frame, an air cleaner disposed at least partially behind the lower extension of the main frame, and intake air of the air cleaner and the engine
- An intake passage that connects the fuel tank and a canister that adsorbs the evaporated fuel inside the fuel tank and supplies the adsorbed fuel to the intake passage.
- the intake passage includes the main frame.
- the canister is arranged so as to bypass the left and right outer sides of the lower extension portion in the vehicle width direction, and the canister overlaps at least a part of the intake passage and does not overlap the main frame in a side view of the vehicle.
- a purge pipe that is disposed in front of the lower extension portion of the main frame and connects the canister and the intake passage is provided below the rear extension portion of the main frame.
- the canister is disposed so as to overlap the main frame in a plan view of the vehicle.
- a seat frame that supports an occupant seat is attached to the main frame, and the canister overlaps with a part of the seat frame in a lower side in a plan view of the vehicle. Is arranged.
- the canister has a center in the vehicle width direction of the canister in the plan view of the vehicle when the center of the main frame in the vehicle width direction is a reference. It is arranged to be offset to the opposite side.
- the canister is disposed with its longitudinal direction oriented in the vehicle width direction so that the axis of the canister is positioned below the intake passage in a side view of the vehicle.
- a support stay for supporting the canister is attached to the main frame.
- a battery box that supports a battery is provided, and the battery box partially overlaps the downwardly extending portion of the main frame in a side view of the vehicle, and the battery box Is formed so as to protrude forward from the downwardly extending portion and cover the rear of the canister.
- the canister is arranged so that at least a part thereof overlaps the engine on the rear side in a rear view of the vehicle.
- the fuel tank includes a fuel pump that is attached to the fuel tank and supplies fuel to the engine, and the canister is at least partially below the fuel pump in a plan view of the vehicle. It is arranged so that it overlaps.
- the canister is disposed in front of the downwardly extending portion of the main frame so as to overlap with at least a part of the intake passage and not with the main frame in a side view of the vehicle.
- the purge pipe is piped through the lower part of the rear extension part, it is possible to simplify the drawing of the purge pipe as compared with the case where the purge pipe is piped over the upper side of the rear extension part. be able to.
- the canister is disposed in front of the downwardly extending portion of the main frame so as to overlap at least a part of the intake passage in a side view of the vehicle. The occupied space in the vehicle vertical direction of the passage can be reduced.
- the canister since the canister is arranged so as to overlap the main frame in a plan view of the vehicle, the amount of protrusion of the canister to the outside in the vehicle width direction is suppressed and the dimension in the vehicle width direction is suppressed. Can be reduced. Furthermore, according to the above aspect (2), since the upper side of the canister is covered with the main frame, the canister can be protected by the main frame.
- the canister can be protected from disturbances over a wide range above the canister.
- the canister is disposed below the rear extension portion of the main frame so that the center of the canister in the vehicle width direction is offset to the opposite side of the intake passage, The amount of bulge of the canister is reduced. For this reason, according to the above aspect (4), the amount of bending of the intake passage on the front side of the side portion of the downward extending portion can be reduced, and smooth intake in the intake passage can be realized.
- the shaft center of the canister facing the intake passage is disposed below the intake passage, interference between the pipe connected to the canister and the intake passage is caused.
- the canister and the intake passage can be brought close to each other. For this reason, according to the aspect of said (5), the protrusion amount to the vehicle width direction outer side of a canister can be made small, and size reduction in a vehicle width direction can be achieved.
- the canister can be protected from disturbance by the battery box. Furthermore, according to the above aspect (6), since the heavy battery is disposed close to the heavy canister at a position close to the center of the vehicle, the heavy object is positioned close to the center of the vehicle. Can concentrate.
- the canister is disposed so as to overlap the engine in the rear view of the vehicle, the amount of protrusion of the canister to the outside in the vehicle width direction is suppressed, and the vehicle width direction can be reduced. Can be achieved. Furthermore, according to the above aspect (7), the front side of the canister can be protected by the engine.
- the canister is arranged so as to overlap the fuel pump on the lower side in a plan view of the vehicle, the upper portion of the canister is protected by the main frame, the fuel pump, and the fuel tank. Can do. Furthermore, according to the above aspect (8), the fuel pump, which is a heavy object, is disposed close to the canister, which is also a heavy object, at a position close to the center of the vehicle. Can focus on.
- FIG. 1 is a left side view of a motorcycle according to an embodiment of the present invention.
- Fig. 3 is a left side view of a body frame of the motorcycle.
- Fig. 3 is a plan view of a body frame of the motorcycle. It is the left view which removed the covers of the said motorcycle. It is the figure which expanded and showed the A section of FIG. Fig. 3 is a right side view with the covers of the motorcycle removed.
- FIG. 7 is a plan view when the motorcycle is broken along the line BB in FIG. 6. It is the figure which expanded and showed a part by making the vehicle body frame of FIG. 7 into a virtual line.
- FIG. 6 is a cross-sectional view taken along the line CC in FIG. 5.
- FIG. 7 is a cross-sectional view taken along the line DD in FIG. 6.
- FIG. 1 is a diagram showing a left side surface of a motorcycle 1 which is an embodiment of a saddle-ride type vehicle according to the present embodiment.
- a front wheel 2 of the motorcycle 1 is supported by lower ends of a pair of left and right front forks 3.
- the left and right front forks 3 are supported by the head pipe 11 at the front end portion of the vehicle body frame 10 via the steering stem 4 and the top bridge 5.
- a bar-type steering handle 6 is attached to the upper part of the left and right front forks 3 and the top bridge 5.
- the rear wheel 7 of the motorcycle 1 is supported by the rear end portion of the swing arm 8.
- the front end portion of the swing arm 8 is swingably supported by the pivot portion 13a of the vehicle body frame 10.
- the rear wheel 7 is linked to the engine 30 that is a prime mover of the motorcycle 1 through, for example, a chain transmission mechanism.
- a lower end portion of a rear cushion 9 whose upper end portion is connected to the vehicle body frame 10 is connected to the front edge portion of the swing arm 8.
- FIG. 2 is a view of the body frame 10 as viewed from the left side
- FIG. 3 is a view of the body frame 10 as viewed from above.
- the vehicle body frame 10 includes the head pipe 11, a single main frame 12, and a pivot frame 13.
- the head pipe 11 supports the front wheel 2 via the front fork 3 so as to be steerable.
- the single main frame 12 has a front end coupled to the head pipe 11 and extends rearward and downward along the left and right center of the vehicle body from the head pipe 11.
- the pivot frame 13 is coupled to the rear lower end portion of the main frame 12.
- the main frame 12 extends downward toward the rear of the vehicle body from the head pipe 11 while being slightly inclined downward, and extends downward from the rear end of the rear extension 12a via the curved portion 12b. And a downwardly extending portion 12c.
- the pivot frame 13 is composed of a pair of left and right plate members connected by a plurality of cross pipes.
- the pivot frame 13 is provided with the pivot portion 13a that supports the front end portion of the swing arm 8 in a swingable manner.
- the body frame 10 has a down frame 15 whose upper end is coupled to the head pipe 11 at a lower position on the front side of the main frame 12.
- the down frame 15 extends rearward and downward with a larger inclination angle than the main frame 12, and forms a U-shaped space that opens downward between the main frame 12 and the pivot frame 13.
- the front edge of the main frame 12 and the upper edge of the down frame 15 are connected to each other by a gusset plate 16.
- a power unit PU in which the engine 30 and the transmission are integrated is disposed below the rear extension 12 a of the main frame 12.
- the power unit PU is fastened to the down frame 15 and the pivot frame 13 via hanger brackets (not shown) on the front side and the rear side, respectively.
- the power unit PU has a built-in transmission at the rear part of the crankcase 31 of the engine 30.
- the engine 30 stands upright from an upper portion on the front end side of the crankcase 31 so that the cylinder portion 32 substantially follows the down frame 15.
- the cylinder portion 32 is coupled to the crankcase 31 and accommodates a piston (not shown) inside, and a cylinder head 34 is coupled to the upper portion of the cylinder block 33 to form a combustion chamber (not shown) above the piston.
- a head cover 35 covering the upper part of the cylinder head 34.
- An intake passage 41 for introducing the air purified by the air cleaner 40 and the injected fuel is connected to the rear surface side of the cylinder head 34.
- a base end portion of an exhaust pipe 36 is connected to the front side of the cylinder head 34 in order to discharge the gas discharged from the combustion chamber to the outside.
- the exhaust pipe 36 is bent toward the rear side of the vehicle body at the front lower part of the crankcase 31 after being pulled out from the cylinder head 34 to the lower front part.
- An exhaust muffler 37 is connected to the rear end of the exhaust pipe 36.
- the vehicle body frame 10 includes a seat frame 20 whose front end is coupled to the main frame 12 and the pivot frame 13.
- the seat frame 20 includes a pair of left and right seat rails 21 and a pair of left and right support frames 22.
- the pair of left and right seat rails 21 is connected to the rear end of the rear extension 12a of the main frame 12 at the front end and extends toward the rear of the vehicle body. Further, the left and right seat rails 21 are joined such that the front edge portion is curved inward in the vehicle width direction, and each end portion is sandwiched from the left and right sides of the outer peripheral surface of the rear extension portion 12a.
- the pair of left and right support frames 22 has a front end portion connected to a rear portion of the pivot portion 13a of the pivot frame 13 and extends toward the upper rear portion of the vehicle body.
- the left and right support frames 22 extend beyond the rear end positions of the left and right seat rails 21.
- the rear end portions of the left and right seat rails 21 are connected to midway portions of the left and right support frames 22.
- a fuel tank 42 for storing fuel to be supplied to the engine 30 is disposed above the rear extension 12 a of the main frame 12. Note that only a part of the fuel tank 42 may be disposed above the rear extension 12a.
- An occupant seat 43 on which a driver and a rear passenger are seated is disposed behind the fuel tank 42.
- the fuel tank 42 is supported by the rear extension 12 a of the main frame 12 and the left and right seat rails 21 of the seat frame 20.
- the occupant seat 43 is supported by the left and right seat rails 21.
- the air cleaner 40 is arranged in a space portion of the seat frame 20 surrounded by the seat rail 21 and the support frame 22.
- the air cleaner 40 is supported by the seat rail 21 and the support frame 22, and is positioned on the rear side of the downward extending portion 12 c of the main frame 12.
- the entire air cleaner 40 is positioned on the rear side of the downward extending portion 12c, but only a part of the air cleaner 40 may be positioned on the rear side of the downward extending portion 12c.
- symbol 44 in FIG. 1 is a tank cover which covers the outer side of the fuel tank 42
- symbol 45 is a side cover which covers the left and right sides of a vehicle.
- FIG. 4 is a view showing a part of the left side surface of the motorcycle 1 with the tank cover 44 and the side cover 45 removed
- FIG. 5 is an enlarged view of a portion A in FIG.
- FIG. 6 is a view showing a part of the right side surface of the motorcycle 1 with the tank cover 44 and the side cover 45 removed
- FIG. 7 is a view showing a part of the upper surface of the motorcycle 1 when it is broken along the line BB in FIG. 6.
- FIG. 8 is a diagram in which the vehicle body frame 10 in FIG. It is the figure which expanded and showed the part.
- the intake passage 41 that connects the air cleaner 40 and the intake portion of the engine 30 is disposed around the right outer side of the downwardly extending portion 12 c of the main frame 12.
- the rear end portion of the intake passage 41 is connected to the right side surface on the front side of the air cleaner 40, and the front end portion of the intake passage 41 is connected to the rear side surface on the right side of the cylinder head 34 of the engine 30.
- the intake passage 41 whose rear end portion is connected to the right side surface of the air cleaner 40 slightly bulges to the right side of the vehicle body and then to the right side of the downwardly extending portion 12 c of the main frame 12 ( It is curved inward in the vehicle width direction so as to bypass the outer side of the left and right sides in the vehicle width direction.
- the region crossing the right side of the downwardly extending portion 12c bulges most outward in the vehicle width direction.
- FIG. 9 is a cross-sectional view taken along the line CC of FIG. 5, and FIG. 10 is a cross-sectional view taken along the line DD of FIG.
- a throttle body 46 that variably adjusts the passage area in the intake passage 41 according to the throttle operation, and an intake passage in the vicinity of the combustion chamber of the engine 30. 41, an injector 47 for injecting fuel is provided.
- the throttle body 46 is disposed in front of the downwardly extending portion 12 c of the main frame 12 in the middle portion of the intake passage 41.
- the front side region of the intake passage 41 with respect to the downwardly extending portion 12c is curved inward in the vehicle width direction toward the distal end side. For this reason, the throttle body 46 and the injector 47 which are disposed in the portion that curves inward in the vehicle width direction of the intake passage 41 are prevented from protruding outward in the vehicle width direction.
- the throttle body 46 includes a throttle valve 48, an operation drum 50 (rotation operation member), a potentiometer 51 (angle detector) that detects the rotation angle of the throttle valve 48, I have.
- the throttle valve 48 is rotatably disposed in the intake passage 41 and adjusts the passage area in the intake passage 41 according to the rotational position.
- the operation drum 50 (rotation operation member) is connected to the operation wire 49 and rotates the throttle valve 48 by the operation of the operation wire 49.
- the potentiometer 51 (angle detector) detects the rotation angle of the throttle valve 48.
- the operation drum 50 is disposed in an outer region in the vehicle width direction of the intake passage 41, and the potentiometer 51 is disposed in an inner region in the vehicle width direction of the intake passage 41.
- the injector 47 is disposed downstream of the throttle body 46 in the intake passage 41 (in the vicinity of the intake portion of the engine 30), and the fuel supplied from the fuel tank 42 through the fuel pump 53 is atomized to form the inside of the intake passage 41. To spray.
- the fuel pump 53 is disposed at the center of the bottom of the fuel tank 42 in the vehicle width direction.
- the fuel pump 53 and the injector 47 are connected by a fuel supply pipe 54.
- the motorcycle 1 includes a canister 52 that adsorbs the evaporated fuel inside the fuel tank 42 and supplies the adsorbed fuel to the vicinity of the engine in the intake passage 41.
- the canister 52 is formed in a substantially cylindrical shape as a whole, and incorporates an adsorbent such as activated carbon for adsorbing the introduced evaporated fuel.
- a charge pipe 55 for introducing evaporated fuel from the fuel tank 42 and evaporated fuel adsorbed by the adsorbent are supplied to the vicinity of the engine 30 in the intake passage 41.
- a purge pipe 56 is connected.
- a purge control valve 59 is provided in the middle of the purge pipe 56 connecting the canister 52 and the intake passage 41.
- the purge control valve 59 of this embodiment incorporates a solenoid (not shown), and opens and closes the internal passage of the purge pipe 56 by operating the solenoid in accordance with a command from a control device arranged at an appropriate position of the vehicle.
- the purge control valve 59 introduces evaporated fuel from the canister 52 to the vicinity of the engine in the intake passage 41 by opening the internal passage of the purge pipe 56 by a solenoid.
- the purge control valve 59 may not use a solenoid as long as it can control the flow of the evaporated fuel.
- the canister 52 On the other end side in the longitudinal direction (axial direction) of the canister 52, there are a drain pipe 57 for discharging water droplets and fuel staying inside and an air introduction pipe 58 for introducing the atmosphere into the canister 52. It is connected.
- the distal end portion of the air introduction tube 58 is connected to the inner side in the vehicle width direction of the right seat rail 21, and the air is introduced into the canister 52 from the inside of the seat rail 21. It is supposed to be.
- the substantially cylindrical canister 52 is disposed at a position below the rear extension 12a of the main frame 12 and at the front of the lower extension 12c with the longitudinal direction oriented in the vehicle width direction. 4 and 5, the canister 52 is a position at least partially overlapping the intake passage 41 and not overlapping the main frame 12 in a side view from the left side of the vehicle. Is arranged. In this state, the canister 52 is connected to the charge pipe 55 and the purge pipe 56 at the end in the longitudinal direction facing the left side of the vehicle, and the drain pipe 57 at the end in the longitudinal direction facing the right side of the vehicle. Are connected to the atmosphere introduction pipe 58.
- the canister 52 is attached to the main frame 12 through a metal support stay 60 that supports the outer peripheral surface of the canister 52.
- the canister 52 is arranged such that the axial center Co of the canister 52 is located below the intake passage 41.
- the purge pipe 56 connected to the end of the canister 52 facing the left side of the vehicle is pulled out to the front side substantially along the rear extension 12a below the left side of the rear extension 12a of the main frame 12. After that, the vehicle is folded back to the vehicle rear side, and is connected to the engine vicinity of the intake passage 41 across the lower side of the rear extension 12a to the vehicle right side. As shown in FIGS. 7 and 9, the connection portion 56 a of the purge pipe 56 with the intake passage 41 is connected to a position closer to the cylinder head 34 than the installation portion of the throttle body 46 on the intake passage 41.
- the canister 52 arranged as described above is partially overlapped with the rearward extending portion 12 a of the main frame 12 in the vehicle width direction in plan view of the vehicle. Yes. Further, the canister 52 arranged as described above overlaps with the front edge portion of the seat rail 21 on the left side of the seat frame 20 on the lower side in a plan view of the vehicle.
- the canister 52 attached to the main frame 12 via the support stay 60 as described above has a center Cc in the vehicle width direction of the canister 52 in the plan view of the vehicle.
- Cc in the vehicle width direction of the canister 52 in the plan view of the vehicle.
- CL center
- the canister 52 is disposed so as to overlap the cylinder head 34 of the engine 30 on the rear side in the rear view of the vehicle.
- the canister 52 is disposed so that at least a part thereof overlaps the fuel pump 53 on the lower side in a plan view of the vehicle.
- a battery box 61 that houses and holds a battery (not shown) is disposed below the front edge of the left seat rail 21. Yes.
- the battery box 61 is partly overlapped with the lower extension 12c of the main frame 12 in a side view of the vehicle, and the front region 61a projects forward across the left side of the lower extension 12c. It is attached to the main frame 12.
- a front end surface 61 a-1 of the front region 61 a of the battery box 61 faces the outer peripheral surface of the canister 52 from the rear side of the vehicle body.
- the intake passage 41 is arranged around the right outside of the downwardly extending portion 12c of the main frame 12, and the canister 52 is viewed from the side of the vehicle.
- a purge pipe 56 which is disposed in front of the downward extension 12c so as to overlap at least a part of the intake passage 41 and does not overlap the main frame 12, and connects the canister 52 and the intake passage 41, is provided on the rear extension 12a. Piped through below. For this reason, compared with the case where a purge pipe
- the canister 52 is disposed below the rear extension 12a of the main frame 12 so as to overlap at least a part of the intake passage 41 in a side view of the vehicle. Yes. For this reason, the space occupied by the canister 52 and the intake passage 41 in the vehicle vertical direction can be reduced.
- the canister 52 is disposed so as to overlap the main frame 12 in a plan view of the vehicle. For this reason, the protrusion amount to the vehicle width direction outer side of the canister 52 can be suppressed, and the dimension of the vehicle width direction can be made small. Furthermore, in the motorcycle 1 according to the present embodiment, the upper side of the canister 52 is covered by the main frame 12, so that the canister 52 can be protected by the main frame 12.
- the canister 52 is disposed so as to overlap a part of the seat rail 21 (seat frame 20) on the lower side in a plan view of the vehicle. Therefore, the upper side of the canister 52 can be covered not only by the main frame 12 but also by the seat rail 21. Therefore, by adopting the structure of this embodiment, the wide area above the canister 52 can be protected from disturbance.
- the center Cc in the vehicle width direction of the canister 52 is offset to the opposite side of the intake passage 41 with the center (CL) in the vehicle width direction of the main frame 12 interposed therebetween.
- a canister 52 is disposed below the rear extension 12 a of the main frame 12. For this reason, the bulge amount of the canister 52 in the direction of the intake passage 41 can be reduced. Therefore, by adopting the structure of the present embodiment, the size in the vehicle width direction can be further reduced, and the amount of bending to the side of the intake passage 41 can be reduced, so that the smooth intake air in the intake passage 41 can be reduced. Can be realized.
- the canister 52 is disposed so that the axial center Co directed toward the intake passage 41 is positioned below the intake passage 41. For this reason, the canister 52 and the intake passage 41 can be brought close to each other without causing interference between the drain pipe 57 or the air introduction pipe 58 connected to the canister 52 and the intake passage 41. Therefore, by adopting the structure of the present embodiment, the amount of protrusion of the canister 52 to the outside in the vehicle width direction can be reduced, and the dimension in the vehicle width direction can be further reduced.
- the battery box 61 partially overlaps the lower extension 12c of the main frame 12 in the side view of the vehicle, and the front region 61a extends from the lower extension 12c. It is attached to the main frame 12 so as to protrude forward, and an end surface 61a-1 of the front region 61a is formed so as to cover the rear of the canister 52. For this reason, the rear side of the canister 52 can be protected by the battery box 61. Further, since the battery, which is a heavy object in the battery box 61, is disposed in the vicinity of the center of the vehicle and in the vicinity of the canister 52, which is also a heavy object, a plurality of heavy objects are arranged at the center of the vehicle. It can be concentrated at a close position.
- the canister 52 is disposed so as to overlap the engine 30 in the rear view of the vehicle. For this reason, the protrusion amount of the canister 52 to the outside in the vehicle width direction can be suppressed, the size in the vehicle width direction can be further reduced, and the front side of the canister 52 can be protected by the engine 30.
- the canister 52 is arranged so as to overlap the fuel pump 53 on the lower side in a plan view of the vehicle. Therefore, the upper portion of the canister 52 can be protected not only by the main frame 12 but also by the fuel pump 53. Further, since the fuel pump 53, which is a heavy object, is disposed close to the canister 52 and the battery, which are also heavy objects, at a position close to the center of the vehicle, a plurality of heavy objects are concentrated at a position close to the center of the vehicle. Can do.
- the saddle-ride type vehicle includes all vehicles on which a driver rides across a vehicle body, and includes motorcycles (motorbikes and scooter type vehicles). As well as three-wheeled vehicles (including one front wheel and two rear wheels as well as two front wheels and one rear wheel vehicle) or four-wheeled vehicles.
- motorcycles motorbikes and scooter type vehicles
- three-wheeled vehicles including one front wheel and two rear wheels as well as two front wheels and one rear wheel vehicle
- four-wheeled vehicles are examples of the present invention, and various modifications can be made without departing from the gist of the present invention, such as replacing the component of the embodiment with a known component.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Cycles, And Cycles In General (AREA)
- Body Structure For Vehicles (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
本願は、2015年7月24日に出願された中国特許出願201510440944.5号に基づき優先権を主張し、その内容をここに援用する。
この鞍乗り型車両のメインフレームは、ヘッドパイプから車体後方側に延出する後方延出部と、その後方延出部の後端部から下方に延出する下方延出部と、を有している。後方延出部の下方側にはエンジンが配置され、後方延出部の上方側には燃料タンクが配置されている。また、下方延出部の下端側には、ピボットフレームを介してスイングアームの前端部が揺動可能に支持され、下方延出部の上端側には、乗員シートを支持するシートフレームが結合されている。
(1)本発明の一態様に係る鞍乗り型車両は、前輪を操舵可能に支持するヘッドパイプと、前記ヘッドパイプから後方に延出する後方延出部、及び、前記後方延出部の後端部から下方に延出する下方延出部を有する一本のメインフレームと、前記メインフレームの前記後方延出部の下方、かつ前記下方延出部の前方に配置されるエンジンと、少なくとも一部が前記メインフレームの前記後方延出部の上方に配置される燃料タンクと、少なくとも一部が前記メインフレームの前記下方延出部の後方に配置されるエアクリーナと、前記エアクリーナと前記エンジンの吸気部とを接続する吸気通路と、前記燃料タンクの内部の蒸発燃料を吸着し、吸着した燃料を前記吸気通路に供給するキャニスタと、を備え、前記吸気通路は、前記メインフレームの前記下方延出部の車幅方向左右の一側の外側を迂回して配置され、前記キャニスタは、車両の側面視で、前記吸気通路の少なくとも一部と重なり、かつ前記メインフレームと重ならないように、前記メインフレームの前記下方延出部の前方に配置され、前記キャニスタと前記吸気通路を接続するパージ管は、前記メインフレームの前記後方延出部の下方を通って配管されている。
さらに、上記(1)の態様によれば、メインフレームの下方延出部の前方において、キャニスタが、車両の側面視で、吸気通路の少なくとも一部と重なるように配置されるので、キャニスタと吸気通路の車両上下方向の占有スペースを小さくすることができる。
さらに、上記(2)の態様によれば、キャニスタの上方側がメインフレームによって覆われるため、キャニスタをメインフレームによって保護することができる。
さらに、上記(6)の態様によれば、重量物であるバッテリが車両の中心に近い位置において同じく重量物であるキャニスタに近接して配置されるため、重量物を車両の中心に近い位置に集中させることができる。
さらに、上記(7)の態様によれば、キャニスタの前方側をエンジンによって保護することができる。
さらに、上記(8)の態様によれば、重量物である燃料ポンプが車両の中心に近い位置において同じく重量物であるキャニスタに近接して配置されるため、重量物を車両の中心に近い位置に集中させることができる。
自動二輪車1の前輪2は、左右一対のフロントフォーク3の下端部に支持されている。左右のフロントフォーク3は、ステアリングステム4及びトップブリッジ5を介して、車体フレーム10の前端部のヘッドパイプ11に支持されている。左右のフロントフォーク3の上部及びトップブリッジ5には、バータイプの操向ハンドル6が取り付けられている。
車体フレーム10は、上記のヘッドパイプ11と、単一のメインフレーム12と、ピボットフレーム13と、を備えている。
ヘッドパイプ11は、フロントフォーク3を介して前輪2を操舵可能に支持している。単一のメインフレーム12は、前端部がヘッドパイプ11に結合され、ヘッドパイプ11から車体左右中心に沿って後下方へ延びている。ピボットフレーム13は、メインフレーム12の後下端部に結合されている。
左右一対のシートレール21は、前端部がメインフレーム12の後方延出部12aの後端部に連結されて、車体後方側に向かって延出している。また、左右の各シートレール21は、前縁部が車幅方向内向きに湾曲し、各端部が後方延出部12aの外周面に左右両側から挟み込むようにして結合されている。
左右一対のサポートフレーム22は、前端部がピボットフレーム13のピボット部13aの後部に連結されて、車体の後部上方に向かって延出している。また、左右のサポートフレーム22は、左右のシートレール21の後端位置を超えて延出している。左右のシートレール21の後端部は、左右のサポートフレーム22の中途部に連結されている。
なお、図1中の符号44は、燃料タンク42の外側を覆うタンクカバーであり、符号45は、車両の左右の側部を覆うサイドカバーである。
これらの図に示すように、エアクリーナ40とエンジン30の吸気部を接続する吸気通路41は、メインフレーム12の下方延出部12cの右側方の外側を迂回して配置されている。吸気通路41の後端部は、エアクリーナ40の前部側の右側面に接続され、吸気通路41の前端部は、エンジン30のシリンダヘッド34の右寄りの後部面に接続されている。図7,図8に示すように、後端部がエアクリーナ40の右側面に接続された吸気通路41は、車体右側方に若干膨出した後に、メインフレーム12の下方延出部12cの右側(車幅方向左右の一側の外側)を迂回するようにして、車幅方向内側に向かって湾曲している。吸気通路41は、下方延出部12cの右側方を横切る領域が車幅方向外側に最も膨出している。
これらの図にも示すように、吸気通路41の中途部には、スロットル操作に応じて吸気通路41内の通路面積を可変調整するスロットルボディ46と、エンジン30の燃焼室の近傍位置において吸気通路41内に燃料を噴射するインジェクター47と、が設けられている。
スロットルバルブ48は、吸気通路41内に回動可能に配置されて回動位置に応じて吸気通路41内の通路面積を調整する。操作ドラム50(回動操作部材)は、操作ワイヤ49に接続されて、操作ワイヤ49による操作によってスロットルバルブ48を回動させる。ポテンショメータ51(角度検出器)は、スロットルバルブ48の回動角度を検出する。
操作ドラム50は、吸気通路41の車幅方向外側領域に配置され、ポテンショメータ51は、吸気通路41の車幅方向内側領域に配置されている。
キャニスタ52は、全体が略円筒状に形成され、導入された蒸発燃料を吸着するための活性炭等の吸着剤を内蔵している。キャニスタ52の長手方向(軸方向)の一端側には、蒸発燃料を燃料タンク42から導入するチャージ管55と、吸着剤で吸着した蒸発燃料を吸気通路41内のエンジン30の近傍部に供給するパージ管56が接続されている。
なお、パージコントロールバルブ59は、蒸発燃料の流れを制御し得るものであれば、ソレノイドを用いないものであってもよい。
さらに、上述のように配置されたキャニスタ52は、車両の平面視で、シートフレーム20の左側のシートレール21の前縁部と下方側において重なっている。
さらに、本実施形態に係る自動二輪車1は、キャニスタ52の上方側がメインフレーム12によって覆われるため、キャニスタ52をメインフレーム12によって保護することができる。
そして、上記実施形態における構成は本発明の一例であり、実施形態の構成要素を周知の構成要素に置き換える等、本発明の要旨を逸脱しない範囲で種々の変更が可能である。
11 ヘッドパイプ
12 メインフレーム
12a 後方延出部
12c 下方延出部
20 シートフレーム
30 エンジン
40 エアクリーナ
41 吸気通路
42 燃料タンク
43 乗員シート
52 キャニスタ
53 燃料ポンプ
56 パージ管
60 支持ステー
61 バッテリボックス
Claims (8)
- 前輪を操舵可能に支持するヘッドパイプと、
前記ヘッドパイプから後方に延出する後方延出部、及び、前記後方延出部の後端部から下方に延出する下方延出部を有する一本のメインフレームと、
前記メインフレームの前記後方延出部の下方、かつ前記下方延出部の前方に配置されるエンジンと、
少なくとも一部が前記メインフレームの前記後方延出部の上方に配置される燃料タンクと、
少なくとも一部が前記メインフレームの前記下方延出部の後方に配置されるエアクリーナと、
前記エアクリーナと前記エンジンの吸気部とを接続する吸気通路と、
前記燃料タンクの内部の蒸発燃料を吸着し、吸着した燃料を前記吸気通路に供給するキャニスタと、を備え、
前記吸気通路は、前記メインフレームの前記下方延出部の車幅方向左右の一側の外側を迂回して配置され、
前記キャニスタは、車両の側面視で、前記吸気通路の少なくとも一部と重なり、かつ前記メインフレームと重ならないように、前記メインフレームの前記下方延出部の前方に配置され、
前記キャニスタと前記吸気通路を接続するパージ管は、前記メインフレームの前記後方延出部の下方を通って配管されている、
鞍乗り型車両。 - 前記キャニスタは、車両の平面視で、前記メインフレームと重なるように配置されている、
請求項1に記載の鞍乗り型車両。 - 前記メインフレームには、乗員シートを支持するシートフレームが取り付けられ、
前記キャニスタは、車両の平面視で、前記シートフレームの一部と下方側で重なるように配置されている、
請求項2に記載の鞍乗り型車両。 - 前記キャニスタは、前記メインフレームの車幅方向の中心を基準としたときに、車両の平面視で、前記キャニスタの車幅方向の中心が前記吸気通路と反対側にオフセットするように配置されている、
請求項2に記載の鞍乗り型車両。 - 前記キャニスタは、長手方向を車幅方向に指向させて配置され、
車両の側面視で、前記キャニスタの軸心が前記吸気通路よりも下方に位置するように前記キャニスタを支持する支持ステーが、前記メインフレームに取り付けられている、
請求項1に記載の鞍乗り型車両。 - バッテリを支持するバッテリボックスを備え、
前記バッテリボックスは、車両の側面視で、一部が前記メインフレームの前記下方延出部と重なり、かつ前記バッテリボックスの前部領域が前記下方延出部から前方に突出するとともに、前記キャニスタの後方を覆うように形成されている、
請求項1に記載の鞍乗り型車両。 - 前記キャニスタは、車両の後面視で、少なくとも一部が前記エンジンと後方側で重なるように配置されている、
請求項1に記載の鞍乗り型車両。 - 前記燃料タンクに取り付けられて燃料を前記エンジンに供給する燃料ポンプを備え、
前記キャニスタは、車両の平面視で、少なくとも一部が前記燃料ポンプと下方側で重なるように配置されている、
請求項1に記載の鞍乗り型車両。
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JP2022155104A (ja) * | 2021-03-30 | 2022-10-13 | 本田技研工業株式会社 | 鞍乗型車両の車体フレーム構造 |
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