JP6905805B2 - Saddle-type vehicle - Google Patents

Description

The present invention relates to a saddle-type vehicle provided with a canister that adsorbs fuel vapor.

There is a motorcycle that adsorbs fuel vapor using an adsorbent (for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2011-162060

In Patent Document 1, a canister containing the adsorbent is arranged in a storage space of a motorcycle. The storage space for motorcycles is where equipment such as tools and batteries that are frequently removed are stored. When attaching or detaching such equipment, there is a risk of interfering with the canister or the tube connected to the canister. Therefore, it is necessary to protect the canister, the tube, etc., which causes an increase in the number of protective parts and an increase in manufacturing cost.

An object of the present invention is to provide a saddle-type vehicle capable of easily avoiding interference with a canister when attaching / detaching equipment.

In order to achieve the above object, the saddle-mounted vehicle of the present invention is arranged below the fuel tank arranged between the handle and the rider's seat and the rider's seat so as to be detachably attached to the vehicle body. It includes attached equipment, a canister arranged between the fuel tank and the equipment, and an upstream tube connecting the canister and the fuel tank. A tank-side connection portion to which one end of the upstream-side tube is connected is formed on the rear surface of the fuel tank, and a canister-side connection portion to which the other end of the upstream-side tube is connected is formed on the canister. The canister and the equipment are separated by a partition wall. Equipment includes, for example, a battery.

According to this configuration, since the canister and the equipment are separated by a partition wall, it is possible to prevent the equipment and tools from interfering with the canister when the equipment is attached and detached. In addition, since the canister is located behind the fuel tank and closer to the fuel tank than the equipment, the upstream tube between the canister and the fuel tank can be shortened.

In the present invention, it is preferable that an equipment case for storing the equipment is provided, and the front portion of the equipment case constitutes at least a part of the partition wall. According to this configuration, since the equipment case also serves as a partition wall, the number of parts is reduced.

When the equipment case is provided, it is preferable that the equipment case has a canister support portion for supporting the canister. According to this configuration, the equipment case also supports the canister, so that the number of parts is reduced. In addition, it is easy to place the canister close to the equipment case by preventing the relative position of the equipment case and the canister from shifting.

When the equipment case has the canister support portion, the downstream tube connecting the engine and the canister and the flow path in the downstream tube provided on the downstream tube are opened and closed. It is preferable that the equipment case is provided with an on-off valve and has an on-off valve support portion for supporting the on-off valve. According to this configuration, the equipment case also serves as a support for the on-off valve, so that the number of parts is reduced. Further, as compared with the case where the on-off valve support portion is separately formed, the on-off valve can be easily arranged close to the canister by preventing the canister and the downstream tube from being displaced from each other in relative positions.

In the present invention, it is preferable that the canister side connection portion is located above the lower surface of the equipment. Further, it is preferable that the canister side connection portion is located above the lower surface of the fuel tank. According to this configuration, since the canister side connection portion is located below the seat as much as possible, it is possible to prevent the vertical dimension of the upstream side tube from becoming large, and the upstream side tube can be shortened.

In the present invention, it is preferable that the tank side connection portion and the canister side connection portion are located on one side in the vehicle width direction with respect to the vehicle width direction center line of the vehicle body. According to this configuration, it is possible to prevent the upstream tube from becoming long in the vehicle width direction, and the upstream tube can be shortened.

When the tank side connection portion is arranged on one side in the vehicle width direction with respect to the vehicle width direction center line of the vehicle body, the canister is formed in a box shape with the longitudinal direction facing the vehicle width direction, and the vehicle width of the canister. The canister side connection portion is formed at one end on one side in the direction, and the distance from the center line in the vehicle width direction of the vehicle body to one end surface on one side in the vehicle width direction of the canister is the distance from the center line in the vehicle width direction of the vehicle body to the canister. It is preferably smaller than the distance to the other end surface on the other side in the vehicle width direction. According to this configuration, it is possible to prevent the upstream tube from becoming long in the vehicle width direction, and the upstream tube can be shortened.

In the present invention, it is preferable that an equipment case for storing the equipment is provided, and the equipment case is supported by a step bracket that supports a foot step for a passenger. According to this configuration, the step bracket for the foot step also serves as a support for the equipment case, so that the number of parts is reduced.

Another saddle-type vehicle of the present invention includes a fuel tank arranged between the handle and the rider's seat, a storage case arranged below the rider's seat to accommodate the contents, and the fuel tank. A canister arranged between the canister and the front surface of the storage case, and an upstream tube connecting the canister and the fuel tank are provided. A tank-side connection portion to which one end of the upstream-side tube is connected is formed on the rear surface of the fuel tank, and a canister-side connection portion to which the other end of the upstream-side tube is connected is formed on the canister. The storage case opens upward, and the canister-side connection portion is located above the lower surface of the storage case.

According to this configuration, since the canister side connection portion is located below the seat and above the front surface of the accommodating case, it is possible to prevent the size of the upstream side tube from becoming large, and the upstream side tube can be shortened. Since the canister is located in front of the front of the storage case, it is possible to prevent the canister from interfering with the storage case when it is mounted.

According to the saddle-mounted vehicle of the present invention, it is possible to prevent the equipment and tools from interfering with the canister when the equipment is attached and detached.

It is a side view which shows the motorcycle which is a kind of saddle type vehicle which concerns on 1st Embodiment of this invention. It is a top view which shows the motorcycle. It is a top view of the main part of the motorcycle. It is a side view of the main part of the motorcycle. It is a perspective view which looked at the battery case of the motorcycle from the rear diagonally above. It is a perspective view which saw the battery case from the front diagonally above. It is a perspective view which shows the mounting state of the canister of the motorcycle. It is a side view which shows the canister and a holder. It is a bottom view of the main part of the motorcycle. It is sectional drawing which shows the support part of the battery case.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In the present specification, the "left side" and the "right side" refer to the left and right sides as seen by the driver riding the motorcycle.

FIG. 1 is a side view of a motorcycle which is a kind of saddle-type vehicle according to an embodiment of the present invention. The body frame FR of the motorcycle has a main frame 1 forming the front half portion and a rear frame 2 forming the rear half portion. The main frame 1 has a main frame piece 1a extending diagonally backward and downward from the head pipe 4 provided at the front end. As shown in FIG. 2, a pair of left and right main frame pieces 1a are provided. The main frame pieces 1a and 1a are connected by a cross member 1b extending in the vehicle width direction at the rear portion.

As shown in FIG. 1, the rear frame 2 has a seat rail 2a extending rearward from the cross member 1b and a front end connected to a rear end portion of the main frame piece 1a, and extends diagonally upward rearward from the front end of the seat rail. It has a reinforcing pipe 2b connected to the lower surface of 2a. A pair of left and right seat rails 2a and reinforcing pipes 2b are also provided.

A front fork 8 is rotatably supported on the head pipe 4 via a steering shaft (not shown). A steering wheel 6 is fixed to the upper end of the front fork 8, and a front wheel 10 is attached to the lower end of the front fork 8.

A swing arm bracket 9 is provided at the rear end of the main frame 1. A swing arm 12 is pivotally supported around a pivot shaft 16 attached to the swing arm bracket 9 so as to swing up and down. The rear wheel 14 is rotatably supported at the rear end of the swing arm 12. The engine E is mounted on the front side of the swing arm bracket 9 below the main frame 1. That is, the engine E is arranged between the front wheels 10 and the rear wheels 14. The engine E drives the rear wheels 14 via a power transmission member 11 such as a chain.

A fuel tank 15 is arranged above the main frame piece 1a of the main frame 1, and a rider seat 18 and a passenger seat 20 are supported by the seat rail 2a of the rear frame 2. The fuel tank 15 is located above the engine E, behind the steering wheel 6 and in front of the rider's seat 18. The upper surface of the fuel tank 15 is located above the upper surface of the rider seat 18. Further, the lower surface of the fuel tank 15 is located below the upper surface of the rider seat 18.

The engine E has a crankcase 21 that rotatably supports the crankshaft 19, a cylinder block 23 connected to the upper part of the crankcase 21, and a cylinder head 25 connected to the upper part of the cylinder block 23. .. A plurality of exhaust pipes 22 connected to an exhaust port (not shown) on the front surface of the cylinder head 25 merge below the engine E and are connected to a muffler 24 arranged between the engine E and the rear wheels 14. ing. The engine E of the present embodiment is a 4-cycle multi-cylinder engine, but is not limited thereto.

The throttle body 28 is connected to the intake port 26 at the rear of the cylinder head 25. An intake passage for supplying air to the engine E is formed inside the throttle body 28.

Below the rider's seat 18, left and right step brackets 38 that support the passenger's foot steps 37 are arranged on both sides of the vehicle body. The left and right step brackets 38 are attached to the reinforcing rail 2b by bolts 40. The rear fender 41 is arranged below the rear frame 2 and above the rear wheels 14.

As shown in FIG. 3, on the rear surface of the fuel tank 15, a drain outlet portion 44 to which the drain tube 42 is connected and a breather outlet portion 48 to which one end 46a of the breather tube 46 is connected are arranged in the vehicle width direction (left-right direction). It is provided in. Specifically, the breather outlet 48 is provided on the right side, which is one side in the vehicle width direction, and the drain outlet 44 is provided on the left side.

The drain outlet portion 44 and the breather outlet portion 48 project rearward from the rear surface of the fuel tank 15. The drain outlet portion 44 and the breather outlet portion 48 are arranged at intervals in the vehicle width direction. The breather outlet 48 is connected to the gas space in the fuel tank where the transpiration gas is stored via the piping in the tank. The transpiration gas obtained by evaporating gasoline in the tank is guided to the breather outlet 48 via the piping in the tank.

Below the rider's seat 18, a canister 34 and a battery 36, which is a kind of equipment, are arranged side by side in the front-rear direction. The canister 34 is a device that adsorbs the vapor of fuel emitted from the fuel tank 15 by an adsorbent. "Equipment" refers to parts that can be detachably attached to the vehicle body, including the battery 36, in-vehicle tools, U-shaped locks for wheel locks, and in-vehicle electronic toll collection system (ETC). Including vessels and the like. In this embodiment, the battery 36 is detachably attached to the vehicle body from above.

The canister 34 is located behind the fuel tank 15 and in front of the battery 36. The canister 34 is a container 34 in which the activated carbon 35 is stored. The canister 34 is box-shaped, specifically rectangular, with the longitudinal direction facing the vehicle width direction. The canister inlet portion 50 to which the other end 46b of the breather tube 46 is connected and the canister outlet portion 54 to which one end 52a of the purge tube 52 is connected to the right end portion of the canister 34 on one side in the vehicle width direction, specifically, the right end surface. And are formed. The canister inlet portion 50 and the canister outlet portion 54 are provided side by side in the vertical direction with the canister inlet portion 50 facing upward. The distance D1 from the center line C1 in the vehicle width direction of the vehicle body to the right end surface (one end surface) of the canister 34 is smaller than the distance D2 from the center line C1 to the left end surface (end end surface).

An on-off valve 56 for opening and closing the purge flow path in the purge tube 52 is provided in the middle of the purge tube 52. The on-off valve 56 is arranged in front of the canister 34 and behind the fuel tank 15. The other end of the purge tube 52 is connected to the throttle body 28 (FIG. 1). That is, the purge flow path connects the intake passage and the canister space.

The on-off valve 56 is arranged between the drain outlet portion 44 and the breather outlet portion 48. As a result, interference between the tubes 42, 46 connected to the outlets 44, 48 and the on-off valve 56 can be prevented, and the vertical space between the fuel tank 15 and the canister 34 can be effectively used. The on-off valve 56 is controlled to open and close based on a drive command of the control device. The control device determines the vehicle body condition and determines whether or not the suction condition for guiding the evaporated gas adsorbed on the canister 34 to the engine E is satisfied. When the suction condition is met, the controller gives a drive command to open the purge flow path. The control device is configured to close the purge flow path in the natural state where no drive command is given.

The breather tube 46 constitutes an upstream tube connecting the canister 34 and the fuel tank 15, and the purge tube 52 constitutes a downstream tube connecting the engine E and the canister 34. The breather tube 46 and the purge tube 52 are required to be flexible so that they can be easily handled. Further, the breather tube 46 and the purge tube 52 are specially treated to prevent the release of transpiration gas. Therefore, the breather tube 46 and the purge tube 52 are more effective in reducing the manufacturing cost when the tube length is shortened as compared with the general rubber tube.

Further, the breather outlet 48 on the rear surface of the fuel tank 15 constitutes a tank-side connection to which one end 46a of the upstream tube 46 is connected, and the canister inlet 50 of the canister 34 is the other end 46b of the upstream tube 46. Consists of the canister side connection to which is connected. The breather outlet 48 and the canister inlet 50 are arranged on one side in the vehicle width direction with respect to the vehicle width direction center line C1 of the vehicle body, and on the right side in this embodiment.

As shown in FIG. 4, the canister inlet portion 50 is located above the lower surface of the battery 36, that is, the lower surface of the case, and above the lower surface of the fuel tank 15. Further, the lower surface of the canister 34 is located above the lower surface of the fuel tank 15.

The fuel vapor evaporated in the fuel tank 15 is introduced into the canister 34 through the breather tube 46 and adsorbed on the activated carbon 35 (FIG. 3). When the engine is driven, the steam adsorbed on the activated carbon 35 by suction by the piston is desorbed and then supplied to the intake passage of the throttle body 28 of FIG. 1 through the purge tube 52 and burned by the engine E.

The battery 36 is housed in a battery case 55, which is a kind of equipment case. As shown in FIG. 5, the battery case 55 has a front wall 55a, a rear wall 55b, left and right side walls 55c and 55c, and a bottom wall 55d. These walls 55a, 55b, 55c, 55c, 55d form a battery storage space 57 that opens upward. Through this opening, the equipment is attached and detached from above. That is, the access opening opens upward. The upper end of the front wall 55a of the battery case 55 is located above the upper end of the canister 34.

The canister 34 is offset to the left side of the vehicle body. In the present embodiment, the canister 34 is arranged offset to the left side with respect to the center of the battery case 55 in the vehicle width direction. As a result, it is easy to secure a space between the canister inlet portion 50 and the vehicle body frame FR, and it is easy to increase the radius of curvature of the breather tube 46. As a result, the wiring work of the breather tube 46 becomes easy.

The battery case 55 has a support frame 58 extending forward from the front wall 55a. The support frame 58 has an upper wall 58a and left and right side walls 58b and 58b. The canister storage space 60 is formed by the upper wall 58a, the left and right side walls 58b, 58b, and the front wall 55a of the battery case 55. As shown in FIG. 6, the canister storage space 60 is open forward and downward.

The upper end of the upper wall 58a of the support frame 58 is located above the upper end of the canister 34 and extends forward from the upper part of the front wall 55a. The upper wall 58a is formed in a flat plate shape along a plane extending in a direction intersecting the front-rear direction. In this embodiment, the upper wall 58a extends horizontally. The left and right side walls 58b extend forward from both sides of the front wall 55a in the left-right direction. The left and right side walls 58b are formed in a flat plate shape along a plane extending in a direction perpendicular to the vehicle width direction. The left and right side walls 58b are located outside the canister 34 in the vehicle width direction. The upper wall 58a and the left and right side walls 58b cover the upper surface and the left and right surfaces of the canister 34, respectively.

The canister storage space 60 for storing the canister 34 and the battery storage space 57 are separated by a front wall 55a of the battery case 55 in FIG. That is, the front wall 55a of the battery case 55 constitutes a partition wall that separates the canister 34 and the battery 36.

The canister storage space 60 is adjacent to the front of the battery storage space 57 upper opening, and is closed from above by the upper wall 58a. The canister 34 is partitioned by the front wall 55a and the upper wall 58a so as not to come into contact with the battery 36 mounted on the vehicle body and the battery 36 when attached / detached. That is, the front wall 55a partitions the canister storage space 60 and the battery storage space 57 in the front-rear direction, and the upper wall 58a separates the canister storage space 60 and the space above the battery storage space 57.

In this way, the front wall 55a of the battery case 55 constitutes a partition wall, the battery case 55 constitutes a battery storage space 57 that opens upward, and the support frame 58 constitutes a canister storage space 60 that opens downward. There is. As a result, the battery case 55, the front wall 55a, and the support frame 58 can be simultaneously molded by a simple molding die divided vertically.

A first insertion hole 62 facing in the vertical direction is provided at the rear end of the battery case 55. In the present embodiment, a total of two first insertion holes 62 are provided, one at each end in the vehicle width direction. Specifically, a mounting surface 63 facing in the vertical direction connected to the rear wall 55b and the side wall 55c of the battery case 55 is formed, and the first insertion hole 62 is formed in the mounting surface 63.

A second insertion hole 64 facing in the vertical direction is provided on the bottom wall 55d of the battery case 55. In the present embodiment, a total of two second insertion holes 64 are provided at both ends in the vehicle width direction at the rear portion of the bottom wall 55d.

A first screw hole 66 facing in the vertical direction is provided at the front end of the upper wall 58a of the support frame 58 of the battery case 55. In the present embodiment, two first screw holes 66 are provided side by side in the vehicle width direction at the central portion in the vehicle width direction at the front end portion of the upper wall 58a. Each first screw hole 66 is formed so that a screw body is screwed from above by insert molding of a metal nut.

A second screw hole 68 facing downward is provided at the rear portion of the upper wall 58a of the support frame 58. In the present embodiment, the second screw hole 68 is provided on the right side portion in the vehicle width direction at the rear portion of the upper wall 58a. In the second screw hole 68, a boss portion 67 (FIG. 7) protruding downward from the lower surface of the upper wall 58a is integrally formed by molding, and the second screw hole 68 is screwed into the boss portion 67 and the screw body is screwed from below. It is formed to be combined.

A third screw hole 70 facing downward is provided at the front end of the bottom wall 55d of the battery case 55. In the present embodiment, the third screw hole 70 is provided on the left side portion of the bottom wall 55d at the front end portion in the vehicle width direction. Specifically, a boss portion 71 projecting upward is integrally formed on the bottom wall 55d of the battery case 55 by molding, and a third screw hole 70 is screwed into the boss portion 71 from below. Is formed in.

As shown in FIG. 7, the canister 34 is supported by the support frame 58 of the battery case 55. Specifically, the canister 34 is held by the holder 69, and the holder 69 is detachably attached to the support frame 58. That is, the support frame 58 of the battery case 55 constitutes the canister support portion 58 that supports the canister.

The holder 69 is a rectangle having a longitudinal direction in the vehicle width direction in a plan view, and has a front wall 69a, a right side wall 69b, and a bottom wall 69c. The canister 34 is placed on the bottom wall 69c of the holder 69 and is held by the rubber band 72 in the holder 69. As shown in FIG. 8, the rubber band 72 is locked to the locking claws 69d provided on the front wall 69a and the bottom wall 69c of the holder 69. A tube opening 74 is formed in the right side wall 69b of the holder 69, and the breather tube 46 and the purge tube 52 pass through the tube opening 74.

In other words, a through hole is formed on the right end surface of the holder 69 near the outlet and the entrance of the canister 34 in the vehicle width direction, and the tubes 46 and 52 are inserted through the through hole. By covering the connecting portions of the tubes 46 and 52 with the upper side wall and the right side wall, undesired access to the connecting portions can be prevented.

A cylindrical mounting portion 76 projecting forward is provided on the front wall 69a of the holder 69. A fourth screw hole 76a facing forward is formed at the tip of the mounting portion 76. A first mounting piece 78 extending to the left is provided on the right side wall 69b of the holder 69. The first mounting piece 78 is formed at the upper end of the rear end of the right side wall 69b. A third insertion hole 78a facing in the vertical direction is formed in the first mounting piece 78.

A second mounting piece 80 extending downward is provided on the bottom wall 69c of the holder 69. The second mounting piece 80 is formed at the left end portion (back side of the paper surface) of the rear end portion of the bottom wall 69c. The second mounting piece 80 has a mounting surface 80a that extends downward and then extends rearward and faces upward. A fourth insertion hole 80b facing in the vertical direction is formed on the mounting surface 80a.

The holder 69 is attached to the support frame 58 of the battery case 55 via the mounting bracket 82 shown in FIG. 7. The mounting bracket 82 is formed by bending a sheet metal. Specifically, the mounting bracket 82 has a first flat surface portion 84 extending in the vehicle width direction, a second flat surface portion 86 bent downward from the first flat surface portion 84 and extending in the vertical direction, and a front portion from the second flat surface portion 88. It has a third flat surface portion 88 that is bent in the front-rear direction and extends in the front-rear direction.

Two fifth insertion holes 84a facing in the vertical direction are formed in the first flat surface portion 84 side by side in the vehicle width direction. A sixth insertion hole 86a facing in the front-rear direction is formed at the lower end of the second flat surface portion 86. A seventh insertion hole 88a facing the vehicle width direction is formed in the third flat surface portion 88.

The fastening member 90 is inserted from the front into the sixth insertion hole 86a of the mounting bracket 82, and is fastened to the fourth screw hole 76a of the mounting portion 76 of the holder 69. A screw body 92 fixed to the on-off valve 56 is inserted into the seventh insertion hole 88a of the mounting bracket 82 from the left side, and a nut 94 is tightened to the screw body 92. Further, the fastening member 96 is inserted into each of the fifth insertion holes 84a of the mounting bracket 82 from above, and is fastened to the first screw hole 66 of the support frame 58 of the battery case 55. As a result, the front portion of the holder 69 is supported by the support frame 58 via the mounting bracket 82, and the on-off valve 56 is supported by the support frame 58 via the mounting bracket 82. The on-off valve 56 is opened when purging the canister outlet portion 54 with air. As described above, the support frame 58 of the battery case 55 also constitutes an on-off valve support portion that supports the on-off valve 56.

The fastening member 98 is inserted from below into the third insertion hole 78a of the first mounting piece 78 of the holder 69, and is fastened to the second screw hole 68 of the support frame 58 on the front side of the battery case 55. The fastening member 100 is inserted from below into the fourth insertion hole 80b of the second mounting piece 80 of the holder 69 shown in FIG. 8, and is fastened to the third screw hole 70 (FIG. 5) of the battery case 55. As a result, the rear portion of the holder 69 is supported by the battery case 55.

As shown in FIG. 3, the fastening member 102 is inserted from above into the first insertion hole 62 (FIG. 5) at the rear of the battery case 55, and is fastened to the screw hole (not shown) formed in the rear fender 41. There is. As a result, the rear portion of the battery case 55 is supported by the vehicle body.

As shown in FIG. 9, the front-rear intermediate portion of the battery case 55 is supported from below by the rear frame 2 via a pair of left and right support fittings 104. Each support metal fitting 104 is provided on a bracket support portion 106 that supports the step bracket 38 (FIG. 1) for passengers.

Each bracket support portion 106 is fixed to the lower surface of the reinforcing rail 2b of the rear frame 2 by welding, and is configured by welding the outer member 108 on the outer side in the vehicle width direction and the inner member 110 on the inner side in the vehicle width direction. Has been done. The outer member 108 and the inner member 110 are made of sheet metal and are joined to each other by welding, and each is fixed to the reinforcing rail 2b by welding. As a result, the strength of the bracket support portion 106 is improved.

A cylindrical pipe 112 that penetrates both the outer member 108 and the inner member 110 and extends in the vehicle width direction is welded to the outer member 108 and the inner member 110. Two cylindrical pipes 112 are provided side by side in the front-rear direction. A screw hole 112a (FIG. 10) to which the bolt 40 (FIG. 1) is fastened is formed in the cylindrical pipe 112.

The above-mentioned support metal fitting 104 extending inward in the vehicle width direction is formed at the rear end of the inner member 110. The support metal fitting 104 is formed by bending the inner member 110 inward in the vehicle width direction. As shown in FIG. 10, a fifth screw hole 104a facing in the vertical direction is formed in the support metal fitting 104. In this embodiment, the fifth screw hole is composed of a weld nut.

The fastening member 114 is inserted from above into the second insertion hole 64 of the bottom wall 55d of the battery case 55, and is tightened into the fifth screw hole 104a of the support metal fitting 104. As a result, the battery case 55 is supported by the rear frame 2 from below.

According to the above configuration, since the canister 34 and the battery 36 shown in FIG. 3 are partitioned by the front wall 55a, it is possible to prevent the battery 36 and the tool from coming into contact with the canister 34 when the battery 36 is attached or detached. Further, since the canister 34 is arranged behind the fuel tank 15 and closer to the fuel tank 15 than the battery 36, the breather tube 46 and the purge tube 52 can be shortened. Compared with the case of shortening other general tubes, the cost reduction effect by shortening the breather tube 46 is large.

Further, since the front wall 55a of the battery case 55 for accommodating the battery 36 also serves as a partition wall, the number of parts is reduced and the structure is simplified.

Further, since the support frame 58 of the battery case 55 also serves as the canister support portion for supporting the canister 34, the number of parts is further reduced and the structure is further simplified. Further, as compared with the case where the canister support portion is separately formed with respect to the support frame 58, the canister 34 can be easily arranged closer to the battery case 55 by preventing the relative positions of the battery case 55 and the canister 34 from shifting.

Further, since the support frame 58 of the battery case 55 also serves as the on-off valve support portion for supporting the on-off valve 56, the number of parts is reduced and the structure is simplified. Further, as compared with the case where the on-off valve support portion is separately formed, it is easy to prevent the onboard valve 56 from being displaced from the relative position between the canister 34 and the purge tube 52 and to arrange the on-off valve 56 closer to the canister 34.

In the above embodiment, the holder 69 holding the canister 34 and the on-off valve 56 are attached to the mounting bracket 82 shown in FIG. 7 to form a sub-asse, and the sub-ass is attached to the battery case 55. Subsequently, the battery case 55 is attached to the vehicle body, and the battery 36 is stored in the battery case 55. Therefore, since the piping between the canister 34 and the on-off valve 56 is completed at the stage of the sub-assess, it is not necessary to perform the piping after attaching to the vehicle body. Further, by attaching the battery case 55 to the vehicle body, the canister 34 and the on-off valve 56 are also arranged on the vehicle body. Therefore, the installation man-hours and the piping man-hours are reduced.

The canister inlet portion 50 of the canister 34 shown in FIG. 4 is located above the lower surface of the battery 36 and above the lower surface of the fuel tank 15. As a result, since the canister inlet portion 50 is located below the rider's seat 18 as much as possible, it is possible to prevent the breather tube 46 from becoming long in the vertical direction, and the breather tube 46 can be shortened.

The breather outlet 48 of the fuel tank 15 and the canister inlet 50 of the canister 34 shown in FIG. 3 are located on the right side in the vehicle width direction with respect to the vehicle width direction center line C1 of the vehicle body. As a result, it is possible to prevent the breather tube 46 from becoming longer in the vehicle width direction, and the breather tube 46 can be shortened.

The canister inlet portion 50 is formed on the right end surface of the canister 34, and the distance D1 from the vehicle width direction center line C1 of the vehicle body to the right end surface of the canister 34 is the distance D2 from the vehicle width direction center line C2 to the left end surface of the canister 34. Smaller than As a result, it is possible to prevent the breather tube 46 from becoming longer in the vehicle width direction, and the breather tube 46 can be shortened.

As shown in FIG. 9, the battery case 36 is supported by a bracket support portion 106 that supports a passenger step bracket 38 (FIG. 1). In this way, the bracket support portion 106 for supporting the step bracket 38 also supports the battery case 36, so that the number of parts is reduced.

Since the canister 34 is covered with the support frame 58, even if the fuel passes through the tube 46 and enters the canister 34 at the time of a fall or the like, the fuel can be prevented from entering the battery case 55.

Since the longitudinal direction of the canister 34 faces the vehicle width direction, it is possible to prevent the canister 34 from becoming larger in the front-rear direction. This makes it easy to place the canister 34 in the narrow front-rear space between the battery 36 and the fuel tank 15. Since the canister inlet portion 50 and the canister outlet portion 54 overlap in a plan view, the tubes 46 and 52 connected to the canister inlet portion 50 also overlap in the vertical direction. As a result, space can be saved. The breather tube 46 that connects the fuel tank 15 and the canister 34 and the purge tube 52 that connects the canister 34 and the onboard valve 56 are arranged so that most of them overlap each other in a plan view.

The main harness is located on the left side, which is the other side in the vehicle width direction, and extends in the front-rear direction. By directing the connector of the on-off valve 56 to the left side, the wiring from the main harness to the on-off valve 56 can be shortened. The purge tube 52 that connects the canister 34 and the on-off valve 56 and the purge tube 52 that connects the on-off valve 56 and the throttle body 28 are arranged on the right side, which is one side in the vehicle width direction. This makes it possible to prevent interference between the main harness and the purge tube 52.

In the above embodiment, the "equipment case" for accommodating equipment that can be detachably attached to the vehicle body has been described, but the present invention is not limited to the equipment case, and for example, an inclusion such as a rider's glove is accommodated. It may be a case. In this case, the accommodating case opens upward, and the canister side connection portion (canister inlet portion 50) is located above the lower surface of the accommodating case. As a result, since the canister inlet portion 50 is located below the rider's seat 18 as much as possible, it is possible to prevent the breather tube 46 from becoming long in the vertical direction, and the breather tube 46 can be shortened. ..

The storage case is provided below the rider seat 18. The containment case houses at least one of the equipment. When the rider's seat 18 is removed from the vehicle body, the storage case is opened upward, and the equipment housed in the storage case can be taken out. The canister 34 is located behind the fuel tank 15 and in front of the front wall of the containment case. That is, the canister 34 is arranged in front of the equipment. Further, the battery 36 and the storage case may be arranged in different places.

When the tank side connection portion 48 is arranged on the left side, the canister inlet portion 50 may be arranged on the left side, or the canister 34 may be offset on the left side. The canister 34 may be located below the seat 18 in the vicinity of the fuel tank 15, and the type of engine is not limited. For example, the engine may be a single-cylinder engine or a V-type engine. The longitudinal direction of the equipment may be arranged so as to be parallel to the longitudinal direction of the canister 34. With such an arrangement, it is possible to prevent the combined dimensions of the equipment and the canister 34 from becoming large.

The present invention is not limited to the above embodiments, and various additions, changes, or deletions can be made without departing from the gist of the present invention. In the above embodiment, the motorcycle has been described, but a saddle-type vehicle other than the motorcycle, for example, a tricycle, a four-wheel buggy, or the like may be used. Therefore, such things are also included within the scope of the present invention.

6 Handle 15 Fuel tank 18 Rider seat 34 Canister 36 Battery (equipment)
37 Foot step for passengers 38 Step bracket 46 Breather tube (upstream tube)
48 Breather outlet (tank side connection)
50 Canister entrance (canister side connection)
52 Purge tube (downstream tube)
55 Battery case (equipment case)
55a Front wall (partition wall)
56 On-off valve 58 Support frame (canister support, on-off valve support)

Claims (9)

A fuel tank placed between the steering wheel and the rider's seat,
Equipment that is placed below the rider's seat and is detachably attached to the vehicle body,
A canister arranged between the fuel tank and the equipment,
An upstream tube connecting the canister and the fuel tank is provided.
A tank-side connection portion to which one end of the upstream-side tube is connected is formed on the rear surface of the fuel tank.
A canister-side connection portion to which the other end of the upstream-side tube is connected is formed on the canister.
The canister and the equipment are separated by a partition wall.
The tank side connection portion is arranged on one side in the vehicle width direction with respect to the vehicle body width direction center line.
The canister is formed in a box shape with the longitudinal direction facing the vehicle width direction.
The canister side connection portion is formed at one end of the canister on one side in the vehicle width direction.
A saddle in which the distance from the center line in the vehicle width direction to one end surface of the canister in the vehicle width direction is smaller than the distance from the center line in the vehicle width direction of the vehicle body to the other end surface of the canister in the vehicle width direction. Riding vehicle. The saddle-mounted vehicle according to claim 1 is further provided with an equipment case for storing the equipment.
A saddle-mounted vehicle in which the front portion of the equipment case constitutes at least a part of the partition wall. The saddle-mounted vehicle according to claim 1 or 2, further comprising an equipment case for storing the equipment.
A saddle-mounted vehicle in which the equipment case has a canister support portion that supports the canister. In the saddle-mounted vehicle according to claim 3, further, a downstream tube connecting the engine and the canister,
An on-off valve provided on the downstream tube to open and close the flow path in the downstream tube is provided.
A saddle-mounted vehicle in which the equipment case has an on-off valve support portion that supports the on-off valve. The saddle-type vehicle according to any one of claims 1 to 4, wherein the canister-side connection portion is located above the lower surface of the equipment. A fuel tank placed between the steering wheel and the rider's seat,
Equipment that is placed below the rider's seat and is detachably attached to the vehicle body,
A canister arranged between the fuel tank and the equipment,
An upstream tube connecting the canister and the fuel tank is provided.
A tank-side connection portion to which one end of the upstream-side tube is connected is formed on the rear surface of the fuel tank.
A canister-side connection portion to which the other end of the upstream-side tube is connected is formed on the canister.
The canister and the equipment are separated by a partition wall.
The canister is arranged behind the fuel tank and closer to the fuel tank than the equipment.
A saddle-mounted vehicle in which the upper wall of the equipment case covers the upper surface of the canister. The saddle-mounted vehicle according to claim 6, wherein both side walls of the equipment case cover both side surfaces of the canister. The saddle-mounted vehicle according to any one of claims 1 to 7 is further provided with an equipment case for storing the equipment.
A saddle-type vehicle in which the equipment case is supported by a step support portion that supports a step bracket that supports a foot step for a passenger. A fuel tank placed between the steering wheel and the rider's seat,
Equipment that is placed below the rider's seat and is detachably attached to the vehicle body,
A canister arranged between the fuel tank and the equipment,
An upstream tube connecting the canister and the fuel tank is provided.
A tank-side connection portion to which one end of the upstream-side tube is connected is formed on the rear surface of the fuel tank.
A canister-side connection portion to which the other end of the upstream-side tube is connected is formed on the canister.
The canister and the equipment are separated by a partition wall.
The canister is arranged behind the fuel tank and closer to the fuel tank than the equipment.
A saddle-type vehicle in which the canister and the equipment are arranged so that the longitudinal direction faces the vehicle width direction.

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