JP5841032B2 - Saddle riding vehicle - Google Patents

Description

  The present invention relates to a straddle-type vehicle such as a motorcycle equipped with an internal combustion engine as a drive source.

  A straddle-type vehicle equipped with an internal combustion engine is known that includes an evaporative fuel processing device that adsorbs fuel evaporated in a fuel tank with a canister and supplies the adsorbed fuel to the internal combustion engine (for example, , See Patent Document 1).

  In the saddle-ride type vehicle described in Patent Document 1, a pair of seat rails that support a seat on the upper side is connected to a rear portion of a main frame that extends from the head pipe to the rear of the vehicle body. A pair of left and right rear pipes extending upward are connected to the corresponding left and right seat rails. In this straddle-type vehicle, an internal combustion engine is disposed below the main frame, and a fuel tank is supported on the upper portion of the main frame. Further, in the case of this saddle riding type vehicle, the canister of the evaporated fuel processing device is disposed at a position on the rear side of the left and right rear pipes and on the lower side of the seat rail.

JP-A-6-340281

  However, in the conventional saddle-ride type vehicle, although the rear pipe and the seat rail, which are skeleton members of the vehicle body, are arranged on the front side and the upper side of the canister, a protective member or the like is newly added to further protect the canister. In this case, it is necessary to increase the number of parts and secure an occupied space.

  Therefore, the present invention is intended to provide a straddle-type vehicle that can protect the canister from the outside without increasing the number of parts or the occupied space.

The straddle-type vehicle according to the present invention employs the following configuration in order to solve the above problems.
The invention according to claim 1 includes a head pipe (3) that rotatably supports a front wheel and a steering handle, a main frame (4) that extends rearward from the head pipe (3), and the main frame. (4) A pair of left and right seat rails (5L, 5R) extending from the rear part to the rear of the vehicle body and supporting the seat (13) on which an occupant is seated on the upper side, and downward from the rear part of the main frame (4) A pair of left and right center pipes (7L, 7R) extending from each one of the pair of left and right center pipes (7L, 7R) obliquely upward and rearward, and a rear end corresponding to the left and right seat rails (5L, 5R) A vehicle body frame (F) having a pair of left and right rear pipes (8L, 8R) coupled to the engine, an internal combustion engine (2) disposed below the main frame (4), and the main frame ( ) And a canister (37) of an evaporative fuel processing apparatus that adsorbs the evaporated fuel in the fuel tank (12) and supplies the adsorbed fuel to the internal combustion engine (2). ) And a guard member (36) that is attached to one of the pair of left and right seat rails (5L, 5R) and covers the side of the rear wheel (WR) below the one seat rail (5L), A pair of left and right grab rails (32L, 32R) that are respectively attached to the pair of left and right seat rails (5L, 5R) and bulge outward in the vehicle width direction and are gripped by the occupant, the canister (37) The lower side of the grab rail (32L) on the same side as the guard member (36) and the front edge of the grab rail (32L) on the same side as the guard member (36) and the front side Arranged in the vehicle width direction inner side than the imaginary plane connecting the lower edge of the guard member (36) and at the vehicle width direction outer side position than the seat rail (5L) on the same side as the guard member (36). It is characterized by being.

  According to a second aspect of the present invention, in the saddle riding type vehicle according to the first aspect, a rear cowl that covers each side of the pair of left and right seat rails (5L, 5R) below the left and right sides of the seat (13). 33L, 33R) and the rear part of the pair of left and right seat rails (5L, 5R), and extends downward from the rear part of the seat rail (5L, 5R) to cover the upper rear side of the rear wheel (WR). Of the rear wall (34a) of the rear fender (34) and the pair of left and right seat rails (5L, 5R), disposed below the seat rail (5L) on the same side as the guard member (36), A tool box (35) for storing articles therein, wherein at least a part of the canister (37) includes a rear wall (34) of the tool box (35) and the rear fender (34). ) Between the rear cowl (33L) and the guard member (36) on the same side as the guard member (36) in the vertical direction. It is characterized by being arranged.

  The invention according to claim 3 is the saddle riding type vehicle according to claim 2, wherein a part of the rear portion of the tool box (35) is below the front edge of the grab rail (32L, 32R) in a side view. The canister (37) is disposed on the rear side of the tool box (35) so as to be positioned on the inner side in the vehicle width direction than the outer surface in the vehicle width direction of the tool box (35). It is a feature.

  According to a fourth aspect of the present invention, in the straddle-type vehicle according to the second or third aspect, the canister (37) is provided with a charge pipe (44) for sending evaporated fuel from the fuel tank (12) to the canister (37). ) And a purge pipe (45) for sending fuel from the canister (37) to the internal combustion engine (2), the charge pipe (44) and the purge pipe (45) are connected to the tool box (35). And a part of the tool box (35) is arranged on the inner side in the vehicle width direction than the guard member (36), and the guard member of the tool box (35) is A pipe support portion (52) for supporting the charge pipe (44) and the purge pipe (45) is provided at a portion disposed on the inner side in the vehicle width direction than (36). It is an feature.

  The invention according to claim 5 is the saddle riding type vehicle according to any one of claims 1 to 4, wherein the canister (37) is lowered to the front of the vehicle body along the extending direction of the seat rail (5L). At the rear of the canister (37), there is a charge port (38) to which a charge pipe (44) for sending evaporated fuel from the fuel tank (12) to the canister (37) is connected, and the canister (37 ) And a purge port (39) to which a purge pipe (45) for sending fuel to the internal combustion engine (2) is connected, and a front portion of the canister (37) is provided in the canister (37). A drain port (41) for discharging unnecessary liquid components to the outside and a fresh air introduction port (40) for taking outside air into the canister (37) are provided. It is an.

  The invention according to claim 6 is the saddle riding type vehicle according to any one of claims 1 to 5, wherein fuel is sent from the canister (37) to the internal combustion engine (2) to the canister (37). A purge pipe (45) is connected. The purge pipe (45) is provided with an electromagnetic purge control valve (48) for controlling fuel supply from the canister (37) to the internal combustion engine (2). The main frame (4) extends rearward of the vehicle body from the head pipe (3) and then has a rear end curved downward, and the pair of left and right center pipes (7L, 7R) are connected to the main frame (4). The purge control valve (48) is connected to the lower side of the curved portion (4a) and extends downward in the vehicle width direction while being curved downward, and the purge control valve (48) has a vehicle width of the center pipe (7L, 7R). Said inner than the outermost part of the countercurrent center pipe (7L, 7R) is characterized in that attached to or wherein the main frame (4).

  According to the first aspect of the present invention, since the position of the occupant's foot seated on the seat is regulated by the grab rail and the guard member, the occupant's foot is prevented from coming into contact with the canister without adding a new protective member. Canister can be protected from the outside.

  According to the second aspect of the present invention, at least a part of the canister is sandwiched between at least each part of the rear wall of the tool box and the rear fender in the vehicle body front-rear direction, and vertically between at least a part of the rear cowl and the guard member. Therefore, the canister can be protected from the outside without adding a new protective part while making the rear part of the vehicle body compact.

  According to the invention of claim 3, since the position of the foot of the occupant seated on the seat is regulated by the grab rail and the tool box, it is possible to further prevent the foot of the occupant from coming into contact with the canister.

  According to the invention which concerns on Claim 4, a piping support part is provided in the site | part arrange | positioned inside the vehicle width direction rather than the guard member of a tool box, and the charge routed through the vehicle width direction inner side area | region of a tool box Since the pipe and the purge pipe are supported by the pipe support portion, the charge pipe and the purge pipe can be fixed to each other with a simple structure.

  According to the fifth aspect of the present invention, since the drain port is provided at the front part of the canister attached to the vehicle body forward downward, unnecessary liquid in the canister can be efficiently discharged from the canister to the outside. .

  According to the invention of claim 6, since the purge control valve is attached to the center pipe or the main frame inside the outermost portion of the center pipe in the vehicle width direction, the purge control valve is protected from the outside by the vehicle body frame. And can be arranged in a compact manner without bulging to the side of the vehicle body.

1 is a left side view of a saddle riding type vehicle according to an embodiment of the present invention. It is the top view which removed some components of the saddle-ride type vehicle of one Embodiment of this invention. It is the enlarged top view which removed a part component of the rear part of the saddle riding type vehicle of one embodiment of this invention. FIG. 2 is an enlarged side view of a rear portion of the vehicle body of the saddle riding type vehicle shown in FIG. It is the enlarged top view which removed a part component of the body part of the saddle riding type vehicle of one embodiment of this invention. FIG. 2 is an enlarged side view of a part of the saddle riding type vehicle shown in FIG. 1.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Note that the directions such as front, rear, left and right in the following description are the same as those in the vehicle unless otherwise specified. In addition, the arrow FR in the figure indicates the front of the vehicle, the arrow UP indicates the upper side of the vehicle, and the arrow LH indicates the left side of the vehicle.

FIG. 1 is a left side view of the saddle riding type vehicle according to this embodiment, and FIG. 2 is a top view of a part of the saddle riding type vehicle removed.
The straddle-type vehicle of this embodiment is a motorcycle in which the rear wheel WR is driven by the internal combustion engine 2. Hereinafter, the straddle-type vehicle of this embodiment is referred to as “motorcycle 1”.
A body frame F of the motorcycle 1 has a head pipe 3 disposed at a front end portion, and extends rearward and obliquely downward from the head pipe 3 so that a rear portion thereof is bent downward at a different angle (hereinafter, this portion). Is called the “curved portion 4a.”) The main frame 4, a pair of left and right seat rails 5L and 5R extending upward from the rear of the main frame 4 while being inclined upward, and the main frame 4 on the head pipe 3 And a down pipe 6 extending obliquely downward and rearward from the lower position of the connecting portion, and the left and right side surfaces of the main frame 4 below the rear portion, and extending downward in the vehicle width direction and curving downward. A pair of left and right center pipes 7L and 7R extending forward and connected to the lower end of the down pipe 6, and extending rearward and obliquely upward from the rear lower region of the left and right center pipes 7L and 7R, Department left and right of the corresponding seat rails 5L, a pair of left and right rear pipes 8L coupled to 5R, and includes a 8R, the. A reinforcing pipe 9 is connected between an area of the down pipe 6 that is slightly lowered from the joint with the head pipe 3 and an upper area of the rear portion of the main frame 4. Further, as shown in FIG. 1, the region surrounded by the left and right seat rails 5L and 5R, the center pipes 7L and 7R, and the rear pipes 8L and 8R has a substantially triangular shape as viewed from the side.
Of the above members, the members (for example, the seat rails 5L and 5R) that are overlapped and hidden before and after the paper surface are given parentheses for convenience of illustration. In the following explanation, members that are overlapped and hidden before and after the paper surface are handled in the same manner.

  A steering stem (not shown) is rotatably supported on the head pipe 3. A steering handle 10 and a pair of left and right front forks 11L and 11R are held on the steering stem. A front wheel WF is rotatably supported at lower ends of the left and right front forks 11L and 11R.

  A fuel tank 12 is attached to the upper part of the main frame 4, and a seat 13 for attaching a passenger is attached to seat rails 5 </ b> L and 5 </ b> R at the rear of the fuel tank 12. 1 is a front cowl that covers the front side of the head pipe 3, and 15 L and 15 R are tank shrouds that cover the left and right sides of the front side of the fuel tank 12.

  Between the left and right seat rails 5L, 5R, an air cleaner 16 for filtering the air taken in by the internal combustion engine 2 is disposed. The air cleaner 16 extends in a substantially triangular region surrounded by the seat rails 5L and 5R, the center pipes 7L and 7R, and the rear pipes 8L and 8R in a side view. A battery 42 for supplying electric power to the electrical equipment of the vehicle is disposed at the left side position of the air cleaner 16 in the substantially triangular area. In addition, as shown in FIG. 1, the lateral sides on the left and right sides in the vehicle width direction of the substantially triangular area surrounded by the seat rails 5L and 5R, the center pipes 7L and 7R, and the rear pipes 8L and 8R are side covers 28L. , 28R.

  Pivot plates 17L and 17R that extend forward and extend substantially along the vertical direction are fixed to the regions below the rear portions of the left and right center pipes 7L and 7R. A pivot shaft 18 is attached to a substantially middle position between the pivot plates 17L and 17R in the vertical direction. A swing arm 19 that pivotally supports the rear wheel WR at the rear end portion is supported on the pivot shaft 18 so as to be swingable in the vertical direction.

  In addition, the internal combustion engine 2 and the transmission 20 are integrated in a space portion having a substantially rectangular shape in a side view, which is surrounded by the down pipe 6, the reinforcing pipe 9, and the center pipes 7L and 7R below the main frame 4. A power unit 21 is arranged. The internal combustion engine 2 includes a crankcase 22 that houses a crankshaft (not shown), and a cylinder portion 23 that is connected to the upper portion of the crankcase 22 and houses a piston (not shown) inside. The transmission 20 is integrally connected to the rear portion of the crankcase 22 of the internal combustion engine 2. In the power unit 21, the lower front portion and the upper end portion of the internal combustion engine 2 are supported by the down pipe 6 and the reinforcing pipe 9, and the rear end portion of the transmission 20 is supported by the center pipes 7L and 7R.

As shown in FIG. 2, the air cleaner 16 is connected to the upper rear surface (intake port) of the cylinder portion 23 of the internal combustion engine 2 via a connecting tube 24 and an intake pipe 25. A throttle body 26 is interposed between the connecting tube 24 and the intake pipe 25, and an injector 27, which is a fuel injection device, is provided above the throttle body 26.
The throttle body 26 and the injector 27 are arranged on the right side of the rear part of the cylinder part 23 of the internal combustion engine 2, and the fuel for supplying fuel in the fuel tank 12 to the injector 27 on the left side of the rear part of the cylinder part 23. A pump 29 is arranged.

  On the other hand, an exhaust pipe 30 is connected to the upper front surface (exhaust port) of the cylinder portion 23 of the internal combustion engine 2. The exhaust pipe 30 extends to the rear side of the vehicle body through the lower part on the right side in the vehicle width direction of the power unit 21 and the air cleaner 16, and the rear end side is bent obliquely upward on the right side in the vehicle width direction of the rear wheel WR. It is connected to the silencer 31.

  Grab rails 32L and 32R for a passenger to hold by hand are attached to the rear side positions of the joint portions of the left and right seat rails 5L and 5R with the rear pipes 8L and 8R. The grab rails 32L, 32R are convexly curved outward in the vehicle width direction from the connecting portion 32a with the seat rails 5L, 5R on the front end side toward the rear side of the vehicle body, and then constricted inward in the vehicle width direction. , 5R is connected to the rear end.

FIG. 3 is an enlarged top view in which a part of the rear part of the vehicle body is removed, and FIG. 4 is an enlarged side view of the rear part of the vehicle body. FIG. 5 is an enlarged top view on the left side of the rear part of the vehicle body from which parts are further removed, and FIG. 6 is a side view in which a part of the motorcycle 1 shown in FIG. 1 is enlarged.
As also shown in these drawings, the vehicle of the seat rails 5L and 5R is provided at the rear edge portions of the left and right seat rails 5L and 5R (regions on the rear side of the connecting portion on the front end side with the grab rails 32L and 32R). Rear cowls 33L and 33R (not shown in FIG. 2) are attached to cover the sides on the outer side in the width direction. A rear fender 34 is attached to the rear ends of the left and right seat rails 5L, 5R, and a rear wall 34a of the rear fender 34 projects obliquely rearward and downward from the upper side of the rear wheel WR to cover the rear upper side of the rear wheel WR. It is like that.

  In addition, a tool box 35 for storing an article such as a tool is disposed inside the left side portion of the vehicle body below the connecting portion 32a on the front end side of the grab rail 32L. The tool box 35 is formed in a box shape whose front edge is bent obliquely forward and downward, and is arranged so as to substantially follow the left rear pipe 8L from a position below the connecting portion 32a on the front end side of the grab rail 32L. The tool box 35 is attached to the lower end of the connecting portion 32a on the front end side of the grab rail 32L and the rear pipe 8L. The tool box 35 is arranged such that a bent upper corner portion 35c of the front edge portion is abutted against the lower surface of the front end side of the grab rail 32L, and a region on the rear side of the vehicle body from the upper corner portion 35c is located on the front end side of the grab rail 32L. It extends to the rear side of the vehicle body along the lower surface of the connecting portion 32a. That is, the region on the vehicle body rear side of the upper corner portion 35c of the tool box 35 is installed so as to enter below the front edge portion of the grab rail 32L.

  The tool box 35 includes a box main body 35a that is formed in a concave shape and stores articles directly therein, and a box cover 35b that closes an opening of the box main body 35a. The box main body 35a opens toward the left side of the vehicle body when attached to the vehicle body, and the opening is closed by the box cover 35b. The box cover 35b is formed to be slightly larger than the outer shape of the box main body 35a, and in particular, the rear edge portion projects beyond the rear end portion of the box main body 35a toward the vehicle body rear side. Hereinafter, the region of the box cover 35b that projects rearward from the rear end of the box main body 35a is referred to as a rear projecting portion 49.

  A lattice-like guard member 36 that covers the left side of the substantially upper half of the rear wheel WR is disposed below the tool box 35 in the left side of the vehicle body. The guard member 36 is provided with a plurality of protective rods 36b... In a substantially trapezoidal frame frame 36a, the upper edge of the frame frame 36a is coupled to the seat rail 5L on the left side of the vehicle body via the bracket 50, A front edge portion of the frame frame 36a is coupled to the rear pipe 8L on the left side of the vehicle body via another bracket 51. As shown in FIG. 3, the guard member 36 is opened outward so that the lower edge portion 36al of the frame frame 36a is positioned on the outer side (left side) in the vehicle width direction than the upper edge portion 36au. It is arranged at an angle.

By the way, the motorcycle 1 includes a canister 37 of an evaporated fuel processing device that adsorbs the evaporated fuel in the fuel tank 12 and supplies the absorbed fuel to the internal combustion engine 2.
The canister 37 is sandwiched between the rear end face of the box body 35a of the tool box 35 and the rear wall 34a of the rear fender 34 in the vehicle body front-rear direction. Are arranged in a region sandwiched in the vertical direction of the vehicle body.

  The canister 37 has activated carbon built in a cylindrical container. On one end side of the container of the canister 37 in the axial direction, a charge port 38 for introducing the evaporated fuel in the fuel tank 12 into the activated carbon and adsorbing it on the activated carbon, and the fuel adsorbed on the activated carbon in the intake pipe 25 of the internal combustion engine 2 are provided. A purge port 39 to be sent is provided. On the other end side in the axial direction of the container, a fresh air introduction port 40 for introducing outside air into the container at the time of purging, and unnecessary liquid components such as water droplets in the container are provided. A drain port 41 for discharging to the outside is provided.

  The canister 37 is attached to the lower left side of the rear edge of the seat rail 5L on the left side of the vehicle body via a bracket (not shown). The canister 37 is installed on the seat rail 5L so that the cylindrical container follows the extending direction of the seat rail 5L, that is, the front side is inclined downward toward the front of the vehicle body. In this installed state, the canister 37 has a charge port 38 and a purge port 39 positioned on the rear side of the container body, and a fresh air introduction port 40 and a drain port 41 positioned on the front side of the container body. In this state, the charge port 38 is located above the purge port 39, and the fresh air introduction port 40 is located above the drain port 41.

  A charge pipe 44 having one end connected to the upper space in the fuel tank 12 is connected to the charge port 38 on the rear side of the canister 37, and one end is connected to the purge port 39 on the same side of the canister 37 as an internal combustion engine. A purge pipe 45 connected to the second intake pipe 25 is connected. A fresh air introduction tube 46 and a drain tube 47 are connected to the fresh air introduction port 40 and the drain port 41 on the front side of the canister 37, respectively.

  Further, an electromagnetic purge control valve 48 that opens and closes the pipe and controls the supply of fuel from the canister 37 to the internal combustion engine 2 is interposed in an intermediate region of the purge pipe 45 that connects the canister 37 and the intake pipe 25. ing. The purge control valve 48 is a curved portion of the rear upper end side region of the left center pipe 7L or the curvature of the main frame 4 inside the portion of the main frame F that bulges to the maximum outside the vehicle width of the left and right center pipes 7L, 7R. It is attached to the area below the part 4a.

The fresh air introduction tube 46 connected to the front end portion of the canister 37 is connected to the air cleaner 16 or a dedicated air filter (not shown) disposed below the fuel tank 12.
The drain tube 47 connected to the front end portion of the canister 37 is pulled out to a position below the battery 42 installed in the vehicle body. Accordingly, unnecessary liquid components discharged from the canister 37 are dropped below the vehicle body at a position below the battery 42.

Further, as shown in FIG. 5, the tool box 35 disposed on the front side of the canister 37 has a front end portion on the rear surface of the box body 35 a that is closer to the vehicle than the upper edge portion 36 au of the frame frame 36 a of the guard member 36. A pipe support portion 52 protruding inward in the width direction is provided.
The charge pipe 44 and the purge pipe 45 drawn from the rear end portion of the canister 37 are drawn to the vehicle body front side through the inner region in the vehicle width direction of the tool box 35. A routing portion on the back side of the box 35 is locked by a pipe support portion 52 on the back side of the tool box 35.

Here, details of the arrangement of the canister 37 will be described.
The canister 37 is an area surrounded by the rear end portion of the box body 35a of the tool box 35, the rear cowl 33L on the left side of the vehicle body, the rear wall 34a of the rear fender 34, and the upper edge portion 36au of the guard member 36 as described above. 2 and 3, as shown in FIGS. 2 and 3, when viewed from above the vehicle body, the outer edge of the grab rail 32L on the vehicle body left side in the vehicle width direction and the guard member 36 is disposed on the inner side in the vehicle width direction than the virtual plane (see the shaded portion in FIG. 2) connecting the lower edge portions 36al of the vehicle 36 and on the outer side in the vehicle width direction with respect to the seat rail 5L on the left side of the vehicle body. .

  Further, in a state where the box cover 35b is attached to the front surface of the box body 35a of the tool box 35, the box cover 35b is curved and bulges leftward in the vehicle width direction with respect to the box body 35a, and the box cover 35b A rear projecting portion 49 is disposed on the left side of the front edge portion of the canister 37. Therefore, the canister 37 is positioned on the inner side in the vehicle width direction on the rear side of the box body 35a than on the outer surface in the vehicle width direction of the tool box 35.

  As described above, in the motorcycle 1 according to this embodiment, the canister 37 has a vehicle more than a virtual plane connecting the outer edge of the grub rail 32L on the left side in the vehicle width direction and the lower edge of the guard member 36. Since it is arranged at the inner side in the width direction and at the outer side in the vehicle width direction than the seat rail 5L on the left side in the vehicle width direction, the foot position of the occupant seated on the seat 13 is regulated by the grab rail 32L and the guard member 36, It is possible to prevent the occupant's feet from coming into contact with the canister 37. Therefore, the canister 37 can be protected without newly adding a dedicated protective component. Therefore, since it is not necessary to add a new protective component, the vehicle can be made compact and light, and the manufacturing cost can be reduced.

In the motorcycle 1, the canister 37 includes a rear end portion of the box body 35a of the tool box 35, a rear cowl 33L on the left side of the vehicle body, a rear wall 34a of the rear fender 34, and an upper edge portion 36au of the guard member 36. Therefore, the peripheral area of the canister 37 can be protected from the outside without newly adding a dedicated protective component.
The region may be formed by at least a part of each member covering the region.

  Further, in the motorcycle 1, the upper side portion of the tool box 35 extends to the vehicle body rear side along the lower surface of the connecting portion 32a on the front end side of the grab rail 32L, and the canister 37 is a surface on the outer side in the vehicle width direction of the tool box 35. Since the position of the foot of the occupant seated on the seat 13 is regulated by the grab rail 32L and the tool box 35, the foot of the occupant is placed in the canister 37. It can prevent more reliably that it contacts.

  Further, in the motorcycle 1 of this embodiment, a pipe support portion 52 that protrudes inward in the vehicle width direction from the upper edge portion 36au of the guard member 36 is integrally provided on the back surface of the box body 35a of the tool box 35, and the canister 37, the charge pipe 44 and the purge pipe 45 that are routed from the rear end portion of the tool box 35 to the back of the tool box 35 are locked to the pipe support section 52. Therefore, the charge pipe 44 and the purge pipe are simply structured. 45 pipes can be fixed.

  Further, in the motorcycle 1, the canister 37 is disposed so as to be inclined downward toward the front of the vehicle body along the seat rail 5L on the left side of the vehicle body, and the drain port 41 is provided on the front end side of the canister 37. Unnecessary liquid in 37 can be efficiently discharged from the drain port 41 to the outside along the inclination of the canister 37.

  Further, in the motorcycle 1 of this embodiment, the purge control valve 48 for controlling the supply of fuel from the canister 37 to the intake pipe 25 is more than the maximum bulge portion on the side of the vehicle body side of the center pipes 7L and 7R of the vehicle body frame F. Since it is attached to the rear region of the inner main frame 4 or the rear region of the center pipe 7L, the purge control valve 48 can be reliably protected from the outside without adding a dedicated strength component. Further, since the purge control valve 48 does not protrude outward with respect to the vehicle body frame F, it is possible to contribute to making the vehicle body compact.

  In addition, this invention is not limited to said embodiment, A various design change is possible in the range which does not deviate from the summary. For example, although the model of the vehicle in the above embodiment is a motorcycle, the straddle-type vehicle is not limited to a motorcycle but may be a vehicle having three or more wheels.

DESCRIPTION OF SYMBOLS 1 Motorcycle 2 Internal combustion engine 3 Head pipe 4 Main frame 4a Curved part 5L, 5R Seat rail 7L, 7R Center pipe 8L, 8R Rear pipe 12 Fuel tank 13 Seat 32L, 32R Grab rail 33L, 33R Rear cowl 34 Rear fender 34a Rear wall 35 Tool box 36 Guard member 37 Canister 38 Charge port 39 Purge port 40 Fresh air introduction port 41 Drain port 44 Charge pipe 45 Purge pipe 48 Purge control valve 52 Pipe support part F Body frame WR Rear wheel

Claims (6)

A head pipe (3) that rotatably supports a front wheel and a steering handle, a main frame (4) extending from the head pipe (3) to the rear of the vehicle body, and a rear part of the main frame (4) from the rear of the vehicle body A pair of left and right seat rails (5L, 5R) for supporting the seat (13) on which an occupant is seated on the upper side, and a pair of left and right center pipes extending downward from the rear part of the main frame (4) ( 7L, 7R) and a pair of left and right rear pipes extending rearward and obliquely upward from one of the pair of left and right center pipes (7L, 7R) and having rear ends coupled to the corresponding seat rails (5L, 5R) on the left and right (8L, 8R), a vehicle body frame (F),
An internal combustion engine (2) disposed below the main frame (4);
A fuel tank (12) supported on an upper portion of the main frame (4);
A canister (37) of an evaporative fuel processing device that adsorbs the evaporated fuel in the fuel tank (12) and supplies the adsorbed fuel to the internal combustion engine (2);
A guard member (36) attached to one of the pair of left and right seat rails (5L, 5R) and covering the side of the rear wheel (WR) below the one seat rail (5L);
A pair of left and right grab rails (32L, 32R) attached to the pair of left and right seat rails (5L, 5R), respectively, bulging outward in the vehicle width direction and gripped by the occupant,
The canister (37) has an outer edge in the vehicle width direction of the grab rail (32L) on the same side as the guard member (36) below the grab rail (32L) on the same side as the guard member (36). On the inner side in the vehicle width direction than the imaginary surface connecting the lower part and the lower edge of the guard member (36), and on the outer side in the vehicle width direction than the seat rail (5L) on the same side as the guard member (36) A straddle-type vehicle characterized by being arranged at a position. A rear cowl (33L, 33R) covering each side of the pair of left and right seat rails (5L, 5R) below the left and right sides of the seat (13);
The rear part of the rear fender (34) attached to the rear part of the pair of left and right seat rails (5L, 5R) and extending downward from the rear part of the seat rail (5L, 5R) and covering the upper rear side of the rear wheel (WR) A wall (34a);
A tool box (35) that is disposed below the seat rail (5L) on the same side as the guard member (36) of the pair of left and right seat rails (5L, 5R), and stores articles therein; Further comprising
At least a part of the canister (37) is sandwiched between at least a part of the tool box (35) and a rear wall (34a) of the rear fender (34) in the longitudinal direction of the vehicle body, and the guard member (36) The straddle-type vehicle according to claim 1, wherein the straddle-type vehicle is disposed in a region sandwiched between at least a part of the rear cowl (33L) and the guard member (36) on the same side in the vertical direction. A part of the rear part of the tool box (35) enters below the front edge of the grab rail (32L, 32R) in a side view,
The canister (37) is disposed on the rear side of the tool box (35) so as to be positioned on the inner side in the vehicle width direction than the outer surface in the vehicle width direction of the tool box (35). The straddle-type vehicle according to claim 2. The canister (37) has a charge pipe (44) for sending evaporated fuel from the fuel tank (12) to the canister (37), and a purge pipe for sending fuel from the canister (37) to the internal combustion engine (2). (45) is connected,
The charge pipe (44) and the purge pipe (45) are routed through an inner region in the vehicle width direction of the tool box (35),
A part of the tool box (35) is disposed on the inner side in the vehicle width direction than the guard member (36),
A pipe support portion (52) for supporting the charge pipe (44) and the purge pipe (45) is provided at a portion of the tool box (35) disposed on the inner side in the vehicle width direction than the guard member (36). The straddle-type vehicle according to claim 2, wherein a saddle type vehicle is provided. The canister (37) is attached to the vehicle body forward downward along the extending direction of the seat rail (5L),
The rear part of the canister (37) has a charge port (38) connected to a charge pipe (44) for sending evaporated fuel from the fuel tank (12) to the canister (37), and the canister (37) from the canister (37). A purge port (39) connected to a purge pipe (45) for sending fuel to the internal combustion engine (2),
At the front of the canister (37), there are a drain port (41) for discharging unnecessary liquid in the canister (37) to the outside, and a fresh air introduction port (40 for taking outside air into the canister (37)). The saddle riding type vehicle according to any one of claims 1 to 4, wherein the saddle riding type vehicle is provided. A purge pipe (45) for sending fuel from the canister (37) to the internal combustion engine (2) is connected to the canister (37),
The purge pipe (45) is provided with an electromagnetic purge control valve (48) for controlling the supply of fuel from the canister (37) to the internal combustion engine (2).
The main frame (4) extends rearward of the vehicle body from the head pipe (3), and then the rear end curves downward, and the pair of left and right center pipes (7L, 7R) are curved of the main frame (4). Connected to the lower part than the part (4a), curved downward while extending left and right in the vehicle width direction,
The purge control valve (48) is attached to the center pipe (7L, 7R) or the main frame (4) inside the outermost part in the vehicle width direction of the center pipe (7L, 7R). The straddle-type vehicle according to any one of claims 1 to 5.

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