JPWO2017169532A1 - Saddle riding - Google Patents

Abstract

In a saddle-ride type vehicle having a support frame that supports a fuel tank and a ride seat, the support frame (19) includes tank support portions (35, 36) that support the fuel tank (13), and a ride seat (14). And a front connection part connected to at least one of the head pipe (15) and the down frame (16), and a seat support part (37) disposed below the tank support part (35, 36). (33) and a rear connection portion (34) connected to at least one of the cross frame (42) and the rear frame (18) provided between the pair of left and right rear frames (18), and the front connection portion (33) and the rear connection part (34) are arranged below the tank support parts (35, 36). This makes it possible to suppress the height of the riding seat while ensuring a large volume of the space below the fuel tank.

Description

  The present invention includes a head pipe that supports the steering handle so as to be steerable, a down frame that extends rearward and downward from the head pipe, a lower frame that extends rearward in the front-rear direction from the lower end of the down frame, and extends rearwardly. The present invention relates to a saddle-ride type vehicle including a rear frame that is connected to a rear end of the lower frame, a support frame that supports a fuel tank and a riding seat, and an engine that is disposed at the lower rear of the rear frame.

  Such a saddle-ride type vehicle is known from Patent Document 1, in which a lower cover that covers the lower frame from above is disposed below the fuel tank so as to create a space between the lower tank and the fuel tank. Has been.

Japanese Patent No. 4436022

  By the way, in order to secure a large space below the fuel tank, it is necessary to arrange the fuel tank at a high position. However, like the one disclosed in Patent Document 1, the vehicle seat is supported in addition to the fuel tank. In the structure supported by the frame, if the fuel tank is arranged at a high position, the support frame itself must be provided at a high position, and the seating surface of the passenger seat becomes high, so that the occupant's legability is reduced. The problem of end up arises.

  The present invention has been made in view of such circumstances, and provides a saddle-ride type vehicle capable of suppressing the height of a riding seat while ensuring a large volume of a space below a fuel tank. With the goal.

  To achieve the above object, the present invention provides a head pipe that supports a steering handle so as to be steerable, a down frame that extends rearward and downward from the head pipe, and a lower that extends rearward in the front-rear direction from the lower end of the down frame. A frame, a rear frame that extends rearward and is connected to the rear end of the lower frame, a support frame that supports a fuel tank and a riding seat, and an engine that is disposed at the lower rear of the rear frame. In a saddle-ride type vehicle, the support frame supports a tank support portion that supports the fuel tank, a seat support portion that is disposed below the tank support portion so as to support the riding seat, and the head A front connection portion connected to at least one of a pipe and the down frame, and a pair of left and right rear frames. And a rear connection portion connected to at least one of the cross frame and the rear frame, wherein the front connection portion and the rear connection portion are disposed below the tank support portion. And

  According to the present invention, in addition to the structure of the first feature, the seat support portion is disposed rearward of the tank support portion, and the rear connection portion is positioned lower than the front connection portion. A second feature is that it is connected to at least one of a frame and the rear frame.

  According to the present invention, in addition to the configuration of the first or second feature, a bent portion in which the support frame is bent so as to swell toward the rear upper side and disposed behind the tank support portion, and the bent And a rear lower extending portion extending downward from the portion, and the sheet support portion is provided in the rear lower extending portion.

  According to the fourth aspect of the present invention, in addition to any one of the first to third features, the bottom surface of the bottom of the fuel tank is disposed above the front connection portion and the rear connection portion. Features.

  In the present invention, in addition to any one of the first to fourth features, a tank placement surface on which a flange portion provided in the fuel tank is placed is formed on the tank support portion, and the tank placement surface Is arranged above the upper end of the head pipe.

  In the present invention, in addition to any of the configurations of the first to fifth features, a tank mounting surface on which a flange portion included in the fuel tank is mounted is formed on the tank support portion, and the tank mounting surface However, a sixth feature is that the seat is disposed above the lowermost end of the seating surface on the upper surface of the riding seat in a side view.

  In the present invention, in addition to any one of the first to sixth features, the pair of left and right support frames has a vehicle width direction maximum width between the support frames, and the vehicle width between the pair of left and right rear frames. A seventh feature is that the fuel tank is disposed so as to be sandwiched from both sides in the vehicle width direction while being narrower than the maximum width in the direction.

  In the present invention, in addition to any of the configurations of the first to sixth features, the pair of left and right support frames are arranged so as to sandwich the fuel tank from both sides in the vehicle width direction, and the rear portions of the support frames are It is an eighth feature that it is formed so as to be gradually inclined closer to each other as it goes toward the rear connection portion in a plan view.

  According to the present invention, in addition to any one of the first to eighth features, a sub pipe is fixed to the support frame so as to overlap a part of the fuel tank when viewed from above. This is the ninth feature.

  Furthermore, in addition to any of the configurations of the first to ninth features, the present invention provides that the front connection portion is fastened to at least one of the head pipe and the down frame, and the rear connection portion is the cross frame. A tenth feature is that the second frame is fastened to at least one of the rear frames.

  According to the first aspect of the present invention, the support frame that supports the fuel tank and the riding seat includes a tank support portion that supports the fuel tank, a seat support portion that supports the riding seat, a head pipe, and a down frame. A front side connection portion connected to at least one of the left and right rear frames, and a rear side connection portion connected to at least one of the cross frame and the rear frame provided between the pair of left and right rear frames. Since the tank support portion is disposed above the tank, the volume of the space below the fuel tank is such that the fuel tank and the riding seat are supported by the support frame, and the fuel tank is supported at a high position. The height of the passenger seat can be suppressed while ensuring the above. Moreover, since the seat support portion is provided below the tank support portion, it is possible to suppress an increase in the seat height even when the fuel tank is supported at a high position.

  Further, according to the second feature of the present invention, the seat support portion is disposed behind the tank support portion, and the rear connection portion is connected to at least one of the cross frame and the rear frame at a position lower than the front connection portion. Therefore, the seat support portion can be easily provided at a low position in the support frame, and an increase in the height of the riding seat can be suppressed.

  According to the third feature of the present invention, the bent portion disposed rearward of the tank support portion and bent so as to swell rearward and upward, and the rear lower extending portion extending downward from the bent portion. Since the support frame is provided and the seat support part is provided at the rear lower extension part, the seat support part can be provided more easily at a low position, and the height of the riding seat is increased. It can suppress more effectively.

  According to the fourth feature of the present invention, since the bottom surface of the bottom of the fuel tank is located above the front connection part and the rear connection part, it is possible to ensure a large volume of the space below the fuel tank.

  According to the fifth feature of the present invention, the tank mounting surface for mounting the flange portion of the fuel tank is formed on the tank support portion, and the tank mounting surface is above the upper end of the head pipe. By supporting the fuel tank at a high position, it is possible to secure a larger volume of the space below the fuel tank.

  According to the sixth aspect of the present invention, since the tank mounting surface is above the lowermost end of the seating surface of the upper surface of the riding seat in a side view, the fuel tank is supported at a high position, A larger volume of the space below the fuel tank can be secured.

  According to the seventh feature of the present invention, the maximum width in the vehicle width direction between the pair of left and right support frames sandwiching the fuel tank from both sides in the vehicle width direction is narrower than the maximum width in the vehicle width direction between the pair of left and right rear frames. While protecting the fuel tank with the left and right support frames, it is possible to improve the occupant's straddling property and improve the footing property.

  According to the eighth feature of the present invention, the rear portions of the pair of left and right support frames sandwiching the fuel tank from both sides in the vehicle width direction are formed so as to incline toward each other gradually toward the rear connection portion in plan view. Therefore, while protecting the fuel tank with the left and right support frames, it is possible to improve the occupant's straddling property and improve the footing property.

  According to the ninth feature of the present invention, the sub-pipe straddling the fuel tank from above so as to overlap a part of the fuel tank in a plan view is fixed to the support frame, so that the fuel tank is supported at a high position of the support frame. Even if it is made to do, the upper surface of a fuel tank can be effectively protected by a sub pipe.

  Further according to the tenth feature of the present invention, the front connection portion of the support frame is fastened to at least one of the head pipe and the down frame, and the rear connection portion of the support frame is at least one of the cross frame and the rear frame. The support frame can be easily provided between at least one of the head pipe and the down frame and at least one of the cross frame and the rear frame.

FIG. 1 is a left side view of the motorcycle. (First embodiment) FIG. 2 is a view taken in the direction of arrow 2 in FIG. (First embodiment) FIG. 3 is a left side view of the vehicle body frame with the fuel tank and the riding seat attached thereto. (First embodiment) 4 is a view taken in the direction of arrow 4 in FIG. (First embodiment) FIG. 5 is a view showing a state where the fuel tank, the riding seat and the sub pipe are removed from FIG. (First embodiment) 6 is a cross-sectional view taken along line 6-6 of FIG. (First embodiment)

DESCRIPTION OF SYMBOLS 12 ... Steering handle 13 ... Fuel tank 13a ... Flange part 13b ... Bottom part 14 of fuel tank ... Riding seat 15 ... Head pipe 15a ... Head pipe Upper end 16 ... Down frame 17 ... Lower frame 18 ... Rear frame 19 ... Support frame 31 ... Bending part 32 ... Rear lower extension part 33 ... Front connection part 34 ... rear connection parts 35, 36 ... tank support part 37 ... seat support part 42 ... cross frame 49, 50 ... tank mounting surface 58 ... seating surface 58a ... seating Bottom end 61 of the surface ... Sub pipe E ... Engine W1 ... Maximum width W2 between a pair of left and right support frames ... Maximum width in the vehicle width between a pair of left and right rear frames

  Embodiments of the present invention will be described with reference to the accompanying FIGS. In the following description, front and rear, left and right, and top and bottom refer to directions viewed from a passenger who rides a motorcycle.

First embodiment

  1 and 2, a front fork 11 that pivotally supports a front wheel WF and a steering handle 12 connected to the front fork 11 are operated at the front end of a body frame F of a motorcycle that is a saddle-ride type vehicle. It is supported so that it can be directed. A fuel tank 13 disposed behind the steering handle 12 and a tandem riding seat 14 disposed behind the fuel tank 13 are supported by the vehicle body frame F. A front part of a unit swing engine UE that exerts power for rotationally driving the rear wheel WR is supported at the middle part in the front-rear direction of the body frame F so as to be swingable up and down. It is pivotally supported at the rear part of the swing engine UE.

  3 to 6, the vehicle body frame F includes a head pipe 15 that supports the front fork 11 and the steering handle 12 so as to be steerable, and a down extending downward from the head pipe 15. A frame 16; a lower frame 17 extending rearward in the front-rear direction from the lower end of the down frame 16; a rear frame 18 extending rearward and continuously connected to the rear end of the lower frame 17; a fuel tank 13 and a riding seat 14 and a support frame 19 that supports 14.

  In this embodiment, the down frame 16 and the lower frame 17 are integrally formed, and the first cross frame 20 that is fixed to the rear portion of the lower frame 17 and extends in the vehicle width direction is spaced from the first cross frame 20 in the vehicle width direction. The front end portions of the pair of left and right rear frames 18 that are spaced apart are connected. That is, the rear frame 18 is connected to the rear end of the lower frame 17 via the first cross frame 20. A pair of left and right support frames 19 spaced apart in the vehicle width direction are disposed so as to sandwich the fuel tank 13 from both sides.

  Referring to FIG. 1, the unit swing engine UE includes a transmission device interposed between the engine E and the rear wheel WR so as to include an engine E disposed at the lower rear of the rear frame 18 and a transmission. The engine body 21 of the engine E is supported by the lower end portion of the rear frame 18 so as to be able to swing up and down, and houses the transmission M and is connected to the engine body 21. The transmission case 22 extends rearward from the engine body 21 so as to be disposed on the left side of the rear wheel WR, and the rear wheel WR is pivotally supported at the rear portion of the transmission case 22.

  In addition, an air cleaner 24 constituting an upstream end of an intake device 23 connected to an upper side wall of a cylinder head (not shown) in the engine body 21 is supported by the transmission case 22 so that the left side of the rear wheel WR. Is disposed above the transmission case 22. Further, an exhaust muffler 26 (see FIG. 2) constituting the downstream end of the exhaust device 25 connected to the lower side wall of the cylinder head is disposed on the right side of the rear wheel WR.

  The support frame 19 includes a horizontal portion 28 that extends horizontally in the front-rear direction, a first bent portion 29 that is bent so as to swell toward the front upper side, and is connected to the front end of the horizontal portion 28, and a first bent portion 29. A front lower extension 30 extending downward while inclining forward and downward, a second bent portion 31 that is bent so as to bulge rearward and upward and continues to the rear end of the horizontal portion 28, and a second bend A rear lower extending portion 32 that extends downward from the portion 31 while being inclined downward, a front connection portion 33 provided at a lower end portion of the front lower extending portion 30, and a lower end of the rear lower extending portion 32 A rear side connection portion 34 provided in a portion, a first tank support portion 35 that supports the front portion of the fuel tank 13, and a second tank support portion 36 that supports the rear portion of the fuel tank 13, The horizontal portion 28, the first bent portion 29, and the front lower extending portion 0, the second bending portion 31 and the rear lower extending portion 32 is formed by bending a single metal pipe.

  The front side connecting portion 33 crushes the front end of the pipe constituting the horizontal portion 28, the first bent portion 29, the front lower extending portion 30, the second bent portion 31, and the rear lower extending portion 32. By processing in this way, it is formed in a flat plate shape integrally connected to the front end (lower end) of the front lower extension portion 30, and the front connection portion 33 of the pair of left and right support frames 19 is connected to the head pipe 15 and the Connected to at least one of the down frames 16. In this embodiment, the front connection portion 33 is fastened to the upper portion of the down frame 16, and the front connection portion 33 is attached to the bracket 39 fixed to the upper portion of the down frame 16 with bolts 40. The nut 40 is screwed to the bolt 40 to be fastened.

  As clearly shown in FIG. 6, the rear connection portion 34 is formed by fixing a cylindrical member to the rear end (lower end) of the rear lower extension portion 32. The rear side connecting portion 34 is fastened to at least one of the pipe-like second cross frame 42 and the rear frame 18 provided between the pair of left and right rear frames 18. In this embodiment, A pipe-like second cross frame 42 is provided between the middle portions of the rear frame 18, and the rear connection portion 34 is fastened to the second cross frame 42. The second cross frame 42 includes a bracket 43 that sandwiches the rear connection part 34 of the support frame 19 on the left side in the vehicle width direction from both left and right sides, and the rear connection part 34 of the support frame 19 on the right side in the vehicle width direction. The brackets 44 sandwiched from both the left and right sides are fixed, and the rear connection portion 34 is fastened to the brackets 43 and 44 by bolts 45 and nuts 46 that are screwed into the bolts 45, respectively.

  Moreover, as clearly shown in FIG. 3, the second virtual horizontal plane VL2 lower than the first virtual horizontal plane VL1 including the axis of the bolt 40 that fastens the front connection portion 33 to the down frame 16 is the rear connection portion. 34 is set to include an axis of a bolt 45 for fastening the second cross frame 42 to the second cross frame 42, and the rear connection portion 34 is located at a position lower than the front connection portion 33. It will be connected to the frame 42.

  The support frame 19 includes a first tank support portion 35 that supports the front portion of the fuel tank 13, and a second tank support portion 36 that supports the rear portion of the fuel tank 13. The first tank support portion 35 is provided in common to the pair of left and right support frames 19, and includes a support pipe 47 provided between the upper portions of the front lower extension portions 30 in the pair of left and right support frames 19, and a lower portion. And a support member 48 that has a substantially U-shaped cross-sectional shape that is open and is fixed to the center of the support pipe 47 in the vehicle width direction. The support member 48 is formed long in the vehicle width direction. The second tank support portion 36 is individually provided on the pair of left and right support frames 19, and a plate material having a substantially U-shaped cross-sectional shape opened downward is provided at the rear portion of the horizontal portion 28. Each is fixed.

  By the way, the first tank support portion 35 is provided between the upper portions of the front lower extension portion 30 that extends downward while tilting forward from the first bent portion 29, whereas the front connection portion 33 is provided on the front side. Provided at the lower end of the downwardly extending portion 30 and the second tank support portion 36 is provided at the horizontal portion 28, the rear connection portion 34 is a second bent portion that continues to the rear end of the horizontal portion 28. The rear connection portion 33 and the rear connection portion 34 are provided at the lower end portion of the rear lower extension portion 32 that is inclined downwardly from the portion 31 and extends downward. It will be arranged below the portions 35 and 36.

  The fuel tank 13 includes a flange portion 13 a that protrudes outward over the entire circumference in the circumferential direction, and the flange portion 13 a is placed on the upper surface of the support member 48 in the first tank support portion 35. A flat first tank mounting surface 49 is formed, and a flat second tank mounting surface having the same height as the first tank mounting surface 49 is formed on the upper surface of the second tank support portion 36. 50 is formed so as to mount the flange portion 13a.

  Referring to FIG. 3, the third virtual horizontal plane VL3 passing through the first and second tank mounting surfaces 49, 50 is located above the fourth virtual horizontal plane VL4 passing through the upper end 15a of the head pipe 15. The first and second tank mounting surfaces 49 and 50 are disposed above the upper end 15a of the head pipe 15.

  A fifth virtual horizontal plane VL5 passing through the lower surface of the lowermost part 13b of the bottom of the fuel tank 13 in a state in which the flange portion 13a is placed on the first and second tank placement surfaces 49, 50 is the first virtual plane VL5. The lower surface of the lowermost part 13b of the bottom of the fuel tank 13 is disposed above the front connection part 33 and the rear connection part 34. The bottom surface of the fuel tank 13 is located above the virtual connection surface VL1 and the second virtual horizontal plane VL2. The

  The bottom of the fuel tank 13 is connected to a fuel supply pipe 51 that extends downward from the bottom surface of the lowermost part 13b. A fuel cock 52 is provided at the lower end of the fuel supply pipe 51. The fuel cock 52 switches between supply and shutoff of fuel from the fuel tank 13 to the engine E, and a carburetor (provided in the intake device 23 in the engine E from the fuel cock 52 via a fuel hose (not shown)). (Not shown) is supplied with fuel.

  The support frame 19 includes a seat support portion 37 that supports the riding seat 14, and the seat support portion 37 extends rearward and downward in the support frame 19 in common with the pair of left and right support frames 19. It is provided in the portion 32 and is disposed below and behind the first and second tank support portions 35 and 36.

  The seat support portion 37 is provided between the upper portions of the rear lower extending portions 32 of the pair of left and right support frames 19, and is arranged on the upper surface of the seat support portion 37 with a space left and right. A pair of left and right support surfaces 53 are formed, and a pair of left and right elastic members 54 mounted on the front portion of the bottom plate 14 a of the riding seat 14 are in contact with the support surface 53. That is, the front portion of the riding seat 14 is supported by the seat support portion 37 of the support frame 19 via the elastic member 54.

  A seat support member 55 is provided between the rear end portions of the pair of left and right rear frames 18, and the rear portion of the riding seat 14 is supported by the seat support member 55 via an elastic member 56.

  The riding seat 14 and the rear frame in a state where the front portion is supported by the seat support portion 37 of the support frame 19 and the rear portion is supported by the seat support member 55 between the rear end portions of the rear frame 18. Between 18, a seat lock mechanism (not shown) that can switch between fixing the riding seat 14 to the rear frame 18 and detaching the riding seat 14 from the rear frame 18 is provided.

  A storage case 57 having an upper end opened so as to be covered from above by the passenger seat 14 is disposed below the passenger seat 14, and the storage case 57 is supported by the rear frame 18. .

  A seating surface 58 on which an occupant sits is formed on the upper surface of the riding seat 14, and a sixth virtual horizontal plane VL6 passing through the lowermost end 58 a of the seating surface 58 is a flange provided in the fuel tank 13. The first and second tank mounting surfaces 49, 50 are located below the third virtual horizontal plane VL3 passing through the first and second tank mounting surfaces 49, 50 on which the portion 13a is mounted. The seat 14 is disposed above the lowermost end 58a of the seating surface 58 of the riding seat 14 in a side view.

  5, the maximum width W1 in the vehicle width direction between the pair of left and right support frames 19 is the width between the horizontal portions 28 of the support frames 19, and the vehicle width between the pair of left and right rear frames 18. The direction maximum width W2 is the width between the front end portions of the rear frames 18, and the pair of left and right support frames 19 has the vehicle width direction maximum width W1 between the support frames 19 as the pair of left and right rear frames. The fuel tank 13 is arranged so as to be sandwiched from both sides in the vehicle width direction while being narrower than the maximum width W2 between 18 in the vehicle width direction.

  Further, the rear part of the pair of left and right support frames 19, in this embodiment, the rear part from the rear part of the horizontal part 28 to the rear lower extension part 32, as clearly shown in FIG. It forms so that it may incline to the side which mutually approaches gradually as it goes to the side connection part 34. As shown in FIG.

  A sub-pipe 61 is fixed to the support frame 19 so as to overlap a part of the fuel tank 13 in plan view and straddle the fuel tank 13 from above. In this embodiment, the fuel tank 13 A pair of left and right sub-pipes 61 arranged so as to sandwich a fuel cap 60 that can be opened and closed at the center in the vehicle width direction of the upper part from both sides are arranged so as to straddle the fuel tank 13 from above. The front portions of the pair of left and right sub pipes 61 are integrally connected by a connecting pipe 62.

  The front end portion of the sub-pipe 61 is fastened to the first tank support portion 35 of the support frame 19 by fastening together with the front portion of the flange portion 13 a of the fuel tank 13. That is, the front end of the sub-pipe 61 is provided with a first mounting plate 63 that sandwiches the front portion of the flange portion 13a of the fuel tank 13 between the first tank support portion 35 and the first mounting plate 63. By screwing and tightening a bolt 64 inserted through the plate 63, the flange portion 13a, and the support member 48 of the first tank support portion 35 into a weld nut 65 fixed to the lower surface of the support member 48, The front end portion of the sub-pipe 61 is fastened to the first tank support portion 35 by being fastened together with the front portion of the flange portion 13a.

  The rear end portion of the sub pipe 61 is fastened to the second tank support portion 36 of the support frame 19 by being fastened together with the rear portion of the flange portion 13 a of the fuel tank 13. That is, between the rear end portions of the pair of left and right sub pipes 61, a second mounting plate 66 extending in the vehicle width direction between the pair of left and right second tank support portions 36 extends the rear portion of the flange portion 13a. A pair of left and right bolts which are provided so as to be sandwiched between the tank support portion 36 and inserted into the both ends of the second mounting plate 66 in the vehicle width direction, the rear portion of the flange portion 13a and the second tank support portion 36. 67 is screwed into and tightened to a weld nut 68 fixed to the lower surface of the second tank support portion 36 so that the rear end portion of the sub-pipe 61 is fastened together with the rear portion of the flange portion 13a. The tank support 36 is fastened.

  A longitudinal central portion of a support pipe 70 extending in the vehicle width direction is fixed to a front portion of the lower frame 17 in the body frame F, and both end portions of the support pipe 70 and front end portions of the pair of left and right rear frames 18 are fixed. The lower cover support member 71 is provided between the two.

  A step support pipe 72 extending in the vehicle width direction behind the support pipe 70 is fixed to the pair of left and right lower cover support members 71, and the step support pipe 72 projecting laterally from the lower cover support member 71. Steps 73 are fixed to both ends of the. Further, as clearly shown in FIGS. 4 and 5, the lower cover support member 71 is disposed so as to protrude outward in the vehicle width direction from the support frame 19 in plan view.

  Further, one end portion of a lower support arm 74 that protrudes outward from the rear frame 18 and extends rearward is fixed to the front end portion of the rear frame 18. One end portion of an upper support arm 75 that protrudes outward from the rear frame 18 and extends rearwardly downward is fixed to the rear frame 18 slightly below the second cross frame 42, and the lower support arm 74 and a stay 76 fixed to the other end of the upper support arm 75 are pivotally supported by a pillion step 77.

  The vehicle body frame F includes a left and right portion extending to the lower side of the vehicle seat 14 in a side view so as to cover the fuel tank 13 and a part of the vehicle body frame F from the side and cover the storage case 57 from the side. A pair of side covers 78 is supported. The side covers 78 include a lower cover 81 connecting the pair of left and right side covers 78 below the fuel tank 13 and a front cover connecting the front portions of the pair of left and right side covers 78 in front of the fuel tank 13. 82 and a top cover 83 connecting the upper front portions of the side covers 78 are supported so as to cover the fuel tank 13 from above, and a lid 84 is attached to the top cover 83 so as to be openable and closable.

  In addition, an operation knob 85 connected to the fuel cock 52 attached to the fuel tank 13 so as to be able to be disconnected is rotatably disposed at a front portion of the side cover 78. A cylinder lock 86 for releasing the seat lock mechanism and switching the lock is disposed at the lower rear portion so that the key hole 87 faces the outside.

  The lower part of the down frame 16 and the lower frame 17 of the vehicle body frame F are covered with a lower cover 88 from above, and the lower cover 88 includes a pair of left and right lower cover support members 71 and the lower frame. 17 is fastened. In addition, the lower cover 88 is integrally formed with a lower side cover 89 that covers the front portion of the rear frame 18 from the side and is connected to the front-rear direction intermediate portion of the side cover 78.

  The step support pipe 72 provided with the step 73 at both ends penetrates the lower cover 88 so that the step 73 is located outside the lower cover 88. Furthermore, both the vehicle width direction both ends of the under cover 90 that covers the lower part of the down frame 16 and the lower frame 17 from below in the vehicle body frame F are connected to the vehicle width direction both ends of the lower cover 88.

  Both ends in the vehicle width direction of the center cover 91 rising upward from the rear part of the vehicle width direction center of the lower cover 88 are connected to the pair of left and right lower side covers 89, and the upper portion of the center cover 91 is Fastened to the side cover 78 so as to be continuous with the rear portion of the lower cover 81.

  A space 92 is formed below the fuel tank 13 so as to be surrounded by the down frame 16, the lower cover 88, the center cover 91, and the lower cover 81 in a side view.

  Next, the operation of this embodiment will be described. The support frame 19 that supports the fuel tank 13 and the riding seat 14 includes first and second tank support portions 35 and 36 that support the fuel tank 13, and A seat support portion 37 disposed below the first and second tank support portions 35, 36 so as to support the riding seat 14, a front connection portion 33 connected to the down frame 16, and left and right And a rear connection part 34 connected to a second cross frame 42 provided between the pair of rear frames 18. The front connection part 33 and the rear connection part 34 support the first and second tanks. Since the fuel tank 13 and the riding seat 14 are supported by the support frame 19, the fuel tank 13 is positioned higher than the portions 35 and 36. While so as to support and secure the volume of the space 92 below the fuel tank 13, it is possible to suppress the height of the rider's seat 14. In addition, since the seat support portion 37 is provided below the first and second tank support portions 35 and 36, it is possible to suppress an increase in seat height even when the fuel tank 13 is supported at a high position. can do.

  The seat support portion 37 is disposed rearward of the first and second tank support portions 35 and 36, and the rear connection portion 34 is positioned lower than the front connection portion 33 and the second cross Since it is connected to the frame 42, the seat support portion 37 can be easily provided at a lower position in the support frame 19, and an increase in the height of the riding seat 14 can be suppressed.

  In addition, the support frame 19 is bent so as to swell toward the rear upper side, and a second bent portion 31 disposed behind the first and second tank support portions 35 and 36, and a second bent portion Since the sheet support portion 37 is provided on the rear lower extension portion 32, the sheet support portion 37 can be more easily provided at a lower position. As a result, it is possible to more effectively suppress the height of the riding seat 14 from increasing.

  Further, the lower surface of the lowermost part 13b of the bottom of the fuel tank 13 is disposed above the front connection part 33 and the rear connection part 34, so that the volume of the space 92 below the fuel tank 13 is increased. Can be secured.

  The first and second tank support portions 35 and 36 are formed with first and second tank mounting surfaces 49 and 50 for mounting the flange portion 13a included in the fuel tank 13, respectively. Since the tank mounting surfaces 49 and 50 are disposed above the upper end 15a of the head pipe 15, the volume of the space 92 below the fuel tank 13 is increased by supporting the fuel tank 13 at a high position. Can be secured.

  Further, since the first and second tank placement surfaces 49 and 50 are disposed above the lowest end 58a of the seating surface 58 on the upper surface of the riding seat 14, the fuel tank 13 is supported at a high position. As a result, a larger volume of the space 92 below the fuel tank 13 can be secured.

  Further, the pair of left and right support frames 19 make the fuel tank 13 in the vehicle while making the vehicle width direction maximum width W1 between the support frames 19 smaller than the vehicle width direction maximum width W2 between the pair of left and right rear frames 18. Since the fuel tanks 13 are arranged so as to be sandwiched from both sides in the width direction, the occupant's straddling property can be improved while the fuel tank 13 is protected by the left and right support frames 19, and the footing property can be enhanced.

  Further, since the rear portions of the pair of left and right support frames 19 are formed so as to be gradually inclined toward the rear connection portion 34 in plan view, the fuel tank 13 is protected by the left and right support frames 19. And, the occupant's straddling property is made good, and the footing property can be enhanced.

  In addition, since the pair of left and right sub pipes 61 are fixed to the support frame 19 so as to overlap a part of the fuel tank 13 in a plan view, the fuel tank 13 is positioned higher than the support frame 19. Even if it is supported at the position, the upper surface of the fuel tank 13 can be effectively protected by the sub pipe 61.

  Further, since the front connection portion 33 is fastened to the down frame 16 and the rear connection portion 34 is fastened to a second cross frame 42 provided between the rear frames 18, the support frame 19 is attached to the down frame. 16 and the second cross frame 42 can be easily provided.

  Further, a portion of the body frame F excluding the support frame 19 and the sub pipe 61 is provided in a body frame of a general low floor scooter type vehicle that uses the front of the riding seat as a footrest space. By using a body frame of a low-floor scooter type vehicle, it is possible to reduce the degree of change of the body frame when providing a saddle-ride type vehicle in which the fuel tank is driven in a knee grip state. Become.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the gist thereof.

  For example, the front connection portion 33 of the support frame 19 may be connected to the head pipe 15, and the front connection portion 33 may be connected across the head pipe 15 and the down frame 16. . Further, the rear connection portion 34 of the support frame 19 may be connected to the rear frame 18, and the rear connection portion 34 is connected across the rear frame 18 and the second cross frame 42. You may be made to do.

  The front connection portion 33 of the support frame 19 is detachably fastened to at least one of the head pipe 15 and the down frame 16, and the rear connection portion 34 is detachable to at least one of the second cross frame 42 and the rear frame 18. In the state of being fastened, the front connection portion 33 of the support frame 19 is fixed to at least one of the head pipe 15 and the down frame 16 by welding the fastening portions, and the rear connection portion 34 is fixed to the second cross frame 42. Further, it may be fixed to at least one of the rear frame 18.

Claims (10)

  A head pipe (15) that supports the steering handle (12) in a steerable manner, a down frame (16) that extends rearward and downward from the head pipe (15), and a rearward direction in the front-rear direction from the lower end of the down frame (16) A lower frame (17) extending to the rear, a rear frame (18) extending rearward and continuously provided at the rear end of the lower frame (17), a fuel tank (13), and a riding seat (14) are supported. In a saddle-ride type vehicle including a support frame (19) and an engine (E) disposed at the lower rear of the rear frame (18), the support frame (19) supports the fuel tank (13). A tank support (35, 36) and a seat support (37) disposed below the tank support (35, 36) so as to support the riding seat (14). A front connection part (33) connected to at least one of the head pipe (15) and the down frame (16), a cross frame (42) provided between the pair of left and right rear frames (18), and the A rear connection part (34) connected to at least one of the rear frames (18), and the front connection part (33) and the rear connection part (34) are the tank support parts (35, 36). A saddle-ride type vehicle characterized by being disposed below the vehicle.   The seat support part (37) is disposed rearward of the tank support part (35, 36), and the rear connection part (34) is positioned lower than the front connection part (33). The saddle riding type vehicle according to claim 1, wherein the saddle riding type vehicle is connected to at least one of (42) and the rear frame (18).   The support frame (19) is bent so as to swell toward the rear upper side, and a bent portion (31) disposed behind the tank support portion (35, 36), and a lower portion from the bent portion (31). The rear lower extending portion (32) extending to the rear side, and the sheet supporting portion (37) is provided on the rear lower extending portion (32). A saddle-ride type vehicle.   The bottom surface of the lowermost part (13b) of the bottom part of the fuel tank (13) is disposed above the front connection part (33) and the rear connection part (34). The saddle riding type vehicle according to any one of to 3.   A tank mounting surface (49, 50) for mounting the flange portion (13a) included in the fuel tank (13) is formed on the tank support portion (35, 36), and the tank mounting surface (49, 50) is formed. 5 is disposed above the upper end (15a) of the head pipe (15), the saddle riding type vehicle according to any one of claims 1 to 4.   A tank mounting surface (49, 50) for mounting the flange portion (13a) included in the fuel tank (13) is formed on the tank support portion (35, 36), and the tank mounting surface (49, 50) is formed. 6 is disposed above the lowermost end (58a) of the seating surface (58) on the upper surface of the riding seat (14) in a side view. The saddle riding type vehicle described.   The pair of left and right support frames (19) has a vehicle width direction maximum width (W1) between the support frames (19) greater than a vehicle width direction maximum width (W2) between the pair of left and right rear frames (18). The saddle-ride type vehicle according to any one of claims 1 to 6, wherein the fuel tank (13) is disposed so as to be sandwiched from both sides in the vehicle width direction while being narrowed.   The pair of left and right support frames (19) are arranged so as to sandwich the fuel tank (13) from both sides in the vehicle width direction, and the rear part of the support frames (19) is the rear connection part (34) in plan view. The saddle-ride type vehicle according to any one of claims 1 to 6, wherein the saddle-ride type vehicle is formed so as to incline toward each other gradually toward the vehicle.   The sub-pipe (61) straddling the fuel tank (13) from above is fixed to the support frame (19) so as to overlap a part of the fuel tank (13) in plan view. The saddle riding type vehicle according to any one of 1 to 8.   The front connection part (33) is fastened to at least one of the head pipe (15) and the down frame (16), and the rear connection part (34) is connected to the cross frame (42) and the rear frame ( The saddle-ride type vehicle according to any one of claims 1 to 9, wherein the saddle-ride type vehicle is fastened to at least one of (18).

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