JP4548852B2 - Saddle riding vehicle - Google Patents

Description

  The present invention relates to a straddle-type vehicle including a fuel injection valve that supplies fuel into an internal combustion engine, and a container case disposed above the fuel injection valve.

  Conventionally, there is a saddle type vehicle disclosed in Japanese Patent Laid-Open No. 2001-73867.

  According to the above-mentioned publication, a rear arm is disposed behind the vehicle body frame included in the vehicle body of the vehicle and the front side is pivotally supported by the vehicle body frame so that the rear side of the vehicle can swing up and down. A rear wheel supported by the end, a container placed above the front part of the rear arm and supported by the vehicle body frame, a seat supported on the upper surface side of the container, and a front part of the rear arm And an internal combustion engine that outputs a driving force to the rear wheels.

  The internal combustion engine includes a crankcase and a cylinder that protrudes forward from the crankcase, and is provided with an intake pipe that extends rearward and upward from the upper surface side of the cylinder, and above the cylinder. A fuel injection valve is provided which supplies fuel into the cylinder.

  When running the vehicle, a rider sits on the seat and supplies fuel into the cylinder by the fuel injection valve. Then, the fuel supplied into the cylinder is used for combustion, and the internal combustion engine outputs a driving force. The driving force drives the rear wheels, thereby enabling the vehicle to travel on the road surface.

  While the vehicle is running, the impact force applied from the road surface to the rear wheel is reduced by the rear wheel swinging up and down together with the rear arm.

  By the way, in the prior art, an intake pipe extends from the upper surface side of the cylinder of the internal combustion engine toward the rear upper side, and a fuel injection valve is fixed to the intake pipe above the cylinder. Since the fuel injection valve tends to protrude largely upward from the cylinder side, the fuel injection valve tends to come into contact with the container case located above the fuel injection valve.

  Therefore, it is conceivable to make the container smaller so that the fuel injection valve does not contact the container, but this is not preferable because the capacity of the container is reduced. In addition, it is conceivable that the container case is positioned higher overall in order to avoid the contact, and the desired capacity is secured in the container case. However, in this case, the upper surface position of the sheet supported by the container case is determined. A problem arises in that the rider seated on this seat will have poor footing on the road surface because it becomes too high.

  The present invention has been made paying attention to the above situation, and a container is disposed above a fuel injection valve for supplying fuel to an internal combustion engine, and a seat is supported on the upper surface side of the container. In this case, it is an object to ensure a sufficient capacity in the container case and to keep the legging property of the rider seated on the seat in a good state.

  A straddle-type vehicle according to the present invention for solving the above-described problems is as follows.

A straddle-type vehicle according to the present invention includes a vehicle body frame, a rear arm that is disposed behind the vehicle body frame and whose front side is pivotally supported on the body frame by a pivot shaft so that the rear side can swing up and down. A rear wheel supported on the rear end of the rear arm, a container placed above the front part of the rear arm and supported by the vehicle body frame, and a seat supported on the upper surface side of the container. An internal combustion engine having a cylinder and constituting a front portion of the rear arm and outputting a driving force to the rear wheel; and an intake air whose one end portion extends upward from the upper surface side of the cylinder and then bends backward An intake pipe having a pipe body and a valve box of a throttle valve attached to the intake pipe body; and a fuel injection disposed above the cylinder of the internal combustion engine and at a position ahead of the valve box And the container is located below the front and rear portions thereof in a side view and located in front of the cylinder, and located below the front and rear portions in a side view. And a rearmost bottom portion located behind the cylinder, a front bottommost portion and a rearmost bottom portion, and a portion recessed upward and a rear side of the recessed portion. The fuel injection valve and the valve box are disposed below a portion of the bottom plate of the storage container that is recessed upward, and the bottom plate having an inclined portion that is inclined upward and rearward. The uppermost part of the fuel injection valve and the uppermost part of the valve box are, as viewed from the side, a portion recessed toward the upper side of the bottom plate, and an imaginary straight line connecting the lowermost part on the front side and the lowermost part on the rear side. Surrounded Located in the region, the portion that is recessed toward the upper side of the bottom plate, the fuel injection valve and has a raised shaped portions after positioned above at least a portion of the valve box, the center of the pivot shaft is Further, it is disposed behind the foremost part of the valve box and at a position lower than the uppermost part of the fuel injection valve and the uppermost part of the valve box .

  In another straddle-type vehicle according to the present invention, the uppermost part of the fuel injection valve is located below the uppermost part of the valve box.

  Another straddle-type vehicle according to the present invention is such that the uppermost portion of the fuel injection valve and the uppermost portion of the valve box follow the recessed shape of the portion of the bottom plate of the storage container that is recessed upward. They are in line.

  In another straddle-type vehicle according to the present invention, at least a part of the valve box is disposed in front of the most recessed portion of the bottom plate of the storage container that is recessed upward. It is.

  In another straddle-type vehicle according to the present invention, the internal combustion engine includes a crankcase, and the cylinder protrudes forward and upward from the crankcase.

  In another saddle-ride type vehicle according to the present invention, in the side view of the vehicle body, the fuel injection valve is a portion that is recessed above the protruding end of the cylinder, the valve box, and the bottom plate of the container. It is arranged in the space between and.

  According to the present invention, the capacity of the container can be sufficiently secured, and since the container does not need to be positioned high, the legability of the rider sitting on the seat supported on the upper surface side of the container is Keeps good.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  In the figure, reference numeral 1 denotes a straddle-type vehicle exemplified by a scooter, and an arrow Fr indicates the front of the vehicle 1.

  The vehicle body 2 of the vehicle 1 includes a vehicle body frame 3 that forms a framework of the vehicle body 2, a front fork 4 that is supported on the front end of the vehicle body frame 3 so as to be steerable, and a front fork 4. A front wheel 5 supported so as to be rotatable at the lower end portion, a handle 6 supported by the upper end portion of the front fork 4, and a rear side of the vehicle body frame 3 which extends in the front-rear direction and is arranged vertically on the rear side. A rear arm 8 whose front side is pivotally supported on the body frame 3 by a pivot shaft 7 so as to be swingable, and a rear end portion (swing end portion) of the rear arm 8 that is rotatably supported. A wheel 9 and a shock absorber 10 that elastically supports the rear end portion of the rear arm 8 on the rear end portion of the vehicle body frame 3 are provided.

  The vehicle body 2 of the vehicle 1 is disposed near the front of the rear arm 8 and is supported by the rear portion of the vehicle body frame 3. The vehicle body 2 is supported on the road surface 14 by the front and rear wheels 5 and 9.

  The container case 12 has a bottom plate 16 extending in the front-rear direction in the vicinity of the upper portion of the front portion of the rear arm 8, and extends integrally upward from an outer edge portion of the bottom plate 16 to form a rectangular frame shape in plan view of the vehicle body 2. And a side plate 17. An internal space of the container 12 surrounded by the bottom plate 16 and the side plate 17 is used as a storage space 19 for the object 18, and the storage space 19 passes through the opening 20 at the upper end of the container 12 to store the container 12. Opened upward, the object 18 can be inserted into and removed from the storage space 19 through the opening 20.

  The seat 13 is pivotally supported by a hinge 21 at the front upper end of the container 12 so that the rear side of the seat 13 can be freely reciprocated (A, B) toward the front upper side. The reciprocating rotation (A, B) of the seat 13 around the hinge 21 allows the opening 20 of the container 12 to be opened and closed upward.

  The front part of the rear arm 8 is composed of a four-cycle internal combustion engine 22 that outputs driving force to the rear wheel 9, and the rear part of the rear arm 8 supports the rear wheel 9, and the rear wheel 9 is used as the internal combustion engine. The power transmission device 23 is interlocked with the power transmission device 23.

  The internal combustion engine 22 includes a crankcase 24 that is pivotally supported on the vehicle body frame 3 by the pivot shaft 7, and a cylinder 25 that protrudes forward and upward from the crankcase 24. A combustion chamber 26 is formed in the cylinder 25, and an intake passage 27 for communicating the combustion chamber 26 above the upper surface of the cylinder 25 is formed.

  An intake pipe 29 extending from the upper surface side of the cylinder 25 toward the rear upper side is provided, and a passage inside the intake pipe 29 is an intake passage 30 for communicating the intake passage 27 of the cylinder 25 with the atmosphere. . The intake pipe 29 has one end fixed to the upper surface of the cylinder 25 and the other end of the intake pipe 29 extending upward from the upper surface side of the cylinder 25 and then bent toward the rear. And a valve box 33 of a throttle valve 32 attached to the extending end of the intake pipe main body 31.

  A fuel injection valve 36 is provided above the front portion of the cylinder 25 of the internal combustion engine 22 and supplies fuel 35 to the combustion chamber 26 in the cylinder 25. The fuel injection valve 36 is fixed to the intake pipe body 31 of the intake pipe 29 and passes through the intake passages 27 and 30 of the cylinder 25 and the intake pipe 29 toward the combustion chamber 26 and substantially downward in the vertical direction. Then, the fuel 35 is injected and supplied.

  In a side view (each figure) of the vehicle body 2, it is sandwiched from the front and rear by a protruding end portion (front end portion) of the cylinder 25 and an intake pipe body 31 that is an end portion 38 of the intake pipe 29 on the cylinder 25 side. A lower end portion that is at least a part of the fuel injection valve 36 is disposed in the space 39.

  The container 12 is formed so as to straddle the first space 42 above the fuel injection valve 36 and the second spaces 43 and 44 in front of and behind the fuel injection valve 36. Therefore, the container Since the twelve storage spaces 19 are formed to be long in the front-rear direction, a long body can be stored.

  The first portion 16a of the bottom plate 16 in the first portion 46 of the container 12 located in the first space 42 has an arc concave shape that is recessed upward. The second portions 16b and 16c of the bottom plate 16 in the second portions 47 and 48 of the container 12 located in the second spaces 43 and 44 are inclined so as to extend linearly in a rearwardly rising manner. It has been made.

  The front end portion of the first portion 16a of the bottom plate 16 and the rear end portion of the second portion 16b of the front portion of the bottom plate 16 are integrally coupled so as to be smoothly continuous. The rear end portion of the first portion 16a of the bottom plate 16 and the front end portion of the second portion 16c at the rear portion of the bottom plate 16 are integrally coupled to each other at a large intersection angle of approximately 90 °.

  The bottoms 47a and 48a of the second portions 47 and 48 of the container 12 located in the second spaces 43 and 44 are below the height of any midway portion in the vertical direction of the fuel injection valve 36, respectively. Is located.

  Almost the entire second portion 16b constituting the front portion of the bottom plate 16 of the container case 12 is located near the front of the protruding end portion of the cylinder 25, and the rear end portion of the second portion 16b is the fuel injection valve. It is located in the upper vicinity of 36. The front end portion of the second portion 16b is the bottom portion 47a, and a large capacity is secured in the storage space 19 of the second portion 47 constituting the front portion of the container case 12.

  Nearly the entire second portion 16c constituting the rear portion of the bottom plate 16 of the container case 12 is located in the vicinity of the upper part of the swinging locus of the rear wheel 9 in the vertical direction, and the front end portion of the second portion 16c is the bottommost portion. A large capacity is also secured in the storage space 19 of the second portion 48 that constitutes the rear portion of the container 12.

  A storage space 19 in each of the second portions 47 and 48 stores an object 18 that is a helmet. Each of these items 18 is inserted into and accommodated in the storage space 19 through the opening 20 opened by the forward rotation A of the sheet 13 and accommodated.

  Although the above is based on the illustrated example, the container 12 is formed so as to straddle the first space 42 and the second space of only one of the front and rear second spaces 43 and 44. May be.

  According to the above configuration, at least the fuel injection valve 36 in the space 39 sandwiched between the protruding end portion of the cylinder 25 and the end portion 38 on the cylinder 25 side of the intake pipe 29 in a side view of the vehicle body 2. A part is arranged.

  For this reason, the surplus space 39 sandwiched between the projecting end portion of the cylinder 25 and the end portion 38 of the intake pipe 29 is used to accommodate the fuel injection valve 36 in the space 39. It is prevented that the fuel injection valve 36 protrudes largely upward from the upper surface side of the cylinder 25.

  Therefore, the fuel injection valve 36 comes into contact with the container 12 even if the container 12 disposed above the fuel injection valve 36 that supplies the fuel 35 to the internal combustion engine 22 is not positioned higher overall. Therefore, the capacity of the storage container 12 can be sufficiently secured, and the storage container 12 does not have to be positioned high. Therefore, the rider's feet sitting on the seat 13 supported on the upper surface side of the storage container 12 can be used. The stickiness remains good.

  Further, as described above, the first space 42 above the fuel injection valve 36 disposed above the internal combustion engine 22 and the second spaces 43 and 44 in front of and / or behind the fuel injection valve 36. The container 12 is formed so as to straddle and the second parts 16b and 16c of the bottom plate 16 of the second parts 47 and 48 of the container 12 located in the second spaces 43 and 44 are inclined rearwardly. I'm allowed.

  For this reason, if the second portion 16b of the bottom plate 16 in the second portion 47 of the container 12 located in the second space 43 in front of the fuel injection valve 36 is inclined rearwardly, the bottom plate If the rear end portion side of the second portion 16b of 16 is positioned in the vicinity of the upper portion of the fuel injection valve 36, the capacity of the container 12 can be sufficiently secured without positioning the container 12 higher, The above-mentioned legging property is also kept good.

  In addition, if the second portion 16c of the bottom plate 16 in the second portion 48 of the container 12 located in the second space 44 behind the fuel injection valve 36 is inclined upwardly, the bottom plate 16 is inclined. If the second portion 16c of the rear wheel 9 is positioned near the upper part of the up-and-down swing trajectory of the rear wheel 9, contact with the rear wheel 9 can be avoided and the container 12 can be positioned without being positioned higher. The capacity of the container 12 can be sufficiently secured, and the above-mentioned footing property is also kept good.

  Further, if the container case 12 is formed so as to entirely span the first space 42 and the second spaces 43 and 44, the storage space 19 of the container case 12 is formed to be elongated in the front-rear direction. The long body can be stored.

  Further, as described above, the bottom portions 47a and 48a of the second portions 47 and 48 of the container 12 located in the second spaces 43 and 44 are positioned below the height of the fuel injection valve 36.

  For this reason, the capacity | capacitance of the said container 12 is increased by using the 2nd space 43,44 of the front and / or back of the said container 12 more effectively.

  Accordingly, the capacity of the container case 12 can be sufficiently secured without placing the container case 12 higher, and the above-described legging property can be kept good.

  Although not shown, the fuel injection valve 36 may be fixed to the cylinder 25. Moreover, the front part of the single helmet which is the thing 18 may be arrange | positioned to either one among the 2nd parts 47 and 48 of the said container case 12, and the rear part of a helmet may be arrange | positioned to the other.

  The storage device in the first saddle-ride type vehicle according to the present embodiment has a rear arm that is arranged at the rear of the vehicle body frame and pivotally supported by the vehicle body frame on the front side so that the rear side can swing up and down. A rear wheel supported on the rear end portion of the rear arm, a container case disposed above the front portion of the rear arm and supported by the vehicle body frame, and a seat supported on the upper surface side of the container case A saddle riding method comprising an internal combustion engine that constitutes a front portion of the rear arm and outputs a driving force to the rear wheel, and a fuel injection valve that is disposed above the internal combustion engine and supplies fuel into the internal combustion engine In the vehicle, the container is formed so as to straddle the first space above the fuel injection valve and the second space ahead and / or behind the fuel injection valve, and is located in the second space. the above Put in which the bottom plate of the container are tilted rearwardly upwards like.

  In the container case in the saddle-ride type vehicle, the rear end of the bottom plate is inclined by tilting the bottom plate in the second portion of the container case located in the second space ahead of the fuel injection valve. If the part side is positioned near the upper part of the fuel injection valve, the fuel injection valve is prevented from coming into contact with the container even if the container is not positioned higher overall. Since a sufficient capacity can be secured and the container case does not need to be positioned high, the legability of the rider seated on the seat supported on the upper surface side of the container case is kept good.

  Further, if the bottom plate in the second portion of the container case located in the second space behind the fuel injection valve is inclined rearwardly, the bottom plate is moved above the vertical swing locus of the rear wheel. If it is positioned in the vicinity, it is possible to sufficiently secure the capacity of the container without avoiding contact with the rear wheel and without placing the container in a higher position, and the above-mentioned footing property is also kept good. Kept.

  Also, if the container case is formed so as to straddle the first space and the second space as a whole, the storage space of the container case is formed to be long in the front and rear, and the long body can be stored. It becomes possible.

  The container device in the second saddle-ride type vehicle according to the present embodiment is such that the bottom of the container case located in the second space is positioned below the height of the fuel injection valve.

  For this reason, the capacity | capacitance of the said container can be increased by using the 2nd space of the front and / or back of the said container more effectively.

  Therefore, the capacity of the container can be sufficiently ensured without placing the container in a higher position, and the above-described legging property can be kept good.

FIG. 3 is a partially enlarged view of FIG. 2. 1 is an overall side view of a vehicle. It is a partial expanded sectional view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle 2 Car body 3 Body frame 4 Front fork 5 Front wheel 8 Rear arm 9 Rear wheel 10 Shock absorber 12 Storage container 13 Seat 14 Road surface 16 Bottom plate 16a 1st part 16b 2nd part 16c 2nd part 22 Internal combustion engine 23 Power transmission device 24 Crankcase 25 Cylinder 29 Intake pipe 35 Fuel 36 Fuel injection valve 38 End 39 Space 42 First space 43 Second space 44 Second space 46 First portion 47 Second portion 47a Bottom portion 48 Second portion 48a Bottom portion

Claims (6)

Body frame,
A rear arm disposed behind the vehicle body frame and pivotally supported on the vehicle body frame by a pivot shaft so that the rear side is swingable up and down;
A rear wheel supported on the rear end of the rear arm;
A container placed above the front portion of the rear arm and supported by the vehicle body frame;
A sheet supported on the upper surface side of the container,
An internal combustion engine having a cylinder and forming a front portion of the rear arm to output a driving force to the rear wheel;
An intake pipe provided with an intake pipe main body that is bent upwardly after one end portion extends upward from the upper surface side of the cylinder, and a valve box of a throttle valve attached to the intake pipe main body;
A fuel injection valve disposed above the cylinder of the internal combustion engine and in front of the valve box,
The container case is located below the front and rear portions in the side view and in front of the cylinder, and is located below the front and rear portions in the side view and from the cylinder. Are also provided across the rearmost bottom part located on the rear side, the frontmost bottom part and the rearmost bottom part, and are located on the rear side of the recessed part and on the rear side of the recessed part. A bottom plate having an inclined portion inclined upward;
The fuel injection valve and the valve box are arranged below a portion of the bottom plate of the storage container that is recessed upward.
The uppermost part of the fuel injection valve and the uppermost part of the valve box are, as viewed from the side, a portion recessed toward the upper side of the bottom plate, and an imaginary straight line connecting the front bottom part and the rear bottom part. Located in the area surrounded by
The portion of the bottom plate that is recessed upward has a rear rising portion located above at least a part of the fuel injection valve and the valve box,
The center of the pivot shaft is a saddle type that is located behind the foremost part of the valve box and lower than the uppermost part of the fuel injection valve and the uppermost part of the valve box. vehicle. The saddle riding type vehicle according to claim 1, wherein
A straddle-type vehicle in which the uppermost portion of the fuel injection valve is positioned below the uppermost portion of the valve box. The saddle riding type vehicle according to claim 1, wherein
A straddle-type vehicle in which the uppermost part of the fuel injection valve and the uppermost part of the valve box are arranged along the concave shape of the upwardly recessed part of the bottom plate of the container case. The saddle riding type vehicle according to claim 1, wherein
A straddle-type vehicle in which at least a part of the valve box is disposed in front of a most recessed portion among the portions recessed upward in the bottom plate of the container. The saddle riding type vehicle according to claim 1, wherein
The internal combustion engine includes a crankcase,
The straddle-type vehicle, wherein the cylinder protrudes forward and upward from the crankcase. The saddle riding type vehicle according to claim 5,
In the side view of the vehicle body, the fuel injection valve is disposed in a space sandwiched between the protruding end portion of the cylinder, the valve box, and the upwardly recessed portion of the bottom plate of the container. Ride type vehicle.

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