JP6417180B2 - Seat structure of saddle riding type vehicle - Google Patents

Description

  The present invention relates to a seat structure for a saddle riding type vehicle.

  There are various types of motorcycles according to user's preference, and one of them is a so-called American type motorcycle disclosed in Patent Document 1 (see, for example, Patent Document 1). In such a motorcycle, a metal rear fender is disposed below the tandem seat, and a plurality of rubber dampers are interposed between the resin bottom plate member of the tandem seat and the rear fender. When a passenger sits on the tandem seat, the load applied to the tandem seat is supported by the rear fender via the rubber damper.

JP-A-10-86874

  However, when a passenger sits on the tandem seat, the bottom plate member of the tandem seat bends, so a large number of rubber dampers must be provided on the upper surface of the rear fender, and there is a support location for supporting the load applied to the seat on the vehicle body side. A lot is needed. Then, a lot of reinforcement on the vehicle body side is required, and the vehicle body cannot be reduced in weight.

  Therefore, an object of the present invention is to reduce the number of support points on the vehicle body side for supporting a load applied to a seat in a straddle-type vehicle.

  A seat structure of a saddle riding type vehicle according to an aspect of the present invention includes a seat for a user to sit on, and the seat is disposed between a skin, a bottom plate member, and the skin and the bottom plate member. An elastic member; and a reinforcing member that extends along a lower surface of the bottom plate member, is fixed to the bottom plate member, and supports a load applied to the bottom plate member.

  According to the said structure, the support location for supporting the load loaded on a sheet | seat which should be formed in the vehicle body side can be reduced.

  The seat structure further includes a vehicle body frame in which a plurality of vehicle body side support portions that support the seat are formed at intervals in the front-rear direction, and the reinforcing member is disposed between the plurality of vehicle body side support portions. You may have the intermediate part which opposes a member from the downward direction.

  According to the above configuration, when the load is applied to the seat and the bottom plate member is about to be deformed, the intermediate portion of the reinforcing member prevents the bottom plate member from being deformed, and thus the number of vehicle body side support portions can be reduced. The intermediate portion of the reinforcing member may contact the bottom plate member at a front-rear direction interval that is narrower than the front-rear direction interval of the plurality of vehicle body side support portions with respect to the bottom plate member, or continuously in the front-rear direction. Or may be opposed to each other with a slight gap without contacting the bottom plate member.

  The reinforcing member may extend between the plurality of vehicle body side support portions.

  According to the said structure, since the load from a baseplate member is transmitted to a vehicle body frame via a reinforcement member, the bending of a reinforcement member can be suppressed.

  The intermediate portion of the reinforcing member may be disposed with a gap in a vertical direction with respect to a vehicle body side member positioned below and facing the intermediate portion.

  According to the above configuration, even if the intermediate portion of the reinforcing member is slightly bent, the reinforcing member can be prevented from being pressed against the vehicle body side member positioned below and opposed to the intermediate portion. It is possible to prevent the upper surface from being damaged.

  The vehicle body side member is a rear fender opposed to the reinforcing member from below and disposed above the vehicle body frame, and the vehicle body frame includes a pair of rail portions extending in the front-rear direction and spaced apart in the left-right direction. And a pair of cross portions that extend in the left-right direction and connect the pair of rail portions to each other. The pair of cross portions are provided with the vehicle body side support portions, respectively, and the vehicle body frame includes the pair of cross sections. An air gap may be formed between the cross portions, and the intermediate portion of the reinforcing member may be positioned above the air gap.

  According to the above configuration, since the intermediate portion of the reinforcing member prevents the bottom plate member from being deformed downward, the seat (intermediate portion of the reinforcing member) is prevented from pressing the rear fender downward. Therefore, it is not necessary for the vehicle body frame to support the rear fender only in order to prevent the rear fender from being deformed by the seat load being applied to the rear fender. Therefore, it is possible to form a gap in the body frame in a region corresponding to the intermediate portion of the reinforcing member.

  The plurality of vehicle body side support portions include a front vehicle body side support portion corresponding to the front portion of the seat and a rear vehicle body side support portion corresponding to the rear portion of the seat, and the reinforcing member includes A rib extending in the front-rear direction may be formed corresponding to a region between the front vehicle body side support portion and the rear vehicle body side support portion.

  According to the said structure, the rigidity of a reinforcement member can be improved with the rib extended in the front-back direction, and the bending of a reinforcement member can be suppressed.

  The bottom plate member has a reinforcing member fixing portion for fixing the reinforcing member, and the reinforcing member is connected to a plurality of detachable divided pieces, and the plurality of divided pieces are fixed to the reinforcing member. The parts may be overlapped and fastened together.

  According to the said structure, in order to mutually connect several division | segmentation pieces, since the reinforcement member fixing | fixed part for fixing a reinforcement member to a baseplate member is shared, a structure can be simplified.

  The bottom plate member fixes a reinforcing member fixing portion on the front side for fixing the reinforcing member arranged corresponding to the front portion of the sheet, and the reinforcing member arranged corresponding to the rear portion of the sheet. A reinforcing member fixing portion on the rear side, and the reinforcing member is fixed to the first divided piece fixed to the reinforcing member fixing portion on the front side, the reinforcing member fixing portion on the rear side, and A second divided piece that protrudes rearward from the rear end of the seat and is fixed to the vehicle body frame, and the first divided piece overlaps the first divided piece on the rear reinforcing member fixing portion. May be tightened together.

  According to the above configuration, the second divided piece that protrudes rearward from the rear end portion of the seat and is fixed to the vehicle body frame is disposed between the front reinforcing member fixing portion and the rear reinforcing member fixing portion. By manufacturing separately from one divided piece, each divided piece can be manufactured easily and with high accuracy.

  In the seat structure, the seat further includes a belt for the user to hold, the bottom plate member includes a belt fixing portion for fixing the belt, and the reinforcing member is combined with the belt. It may be fastened together with the belt fixing portion.

  According to the said structure, the part for fixing a belt and the part for fixing a reinforcement member can be made shared, and a fixing | fixed part can be reduced.

  ADVANTAGE OF THE INVENTION According to this invention, the support location for supporting the load applied to a sheet | seat which should be formed in a vehicle body side can be reduced in a saddle-ride type vehicle.

1 is a left side view of a motorcycle according to an embodiment. FIG. 2A is a perspective view of a sub-seat of the motorcycle shown in FIG. 1 and its vicinity. (B) is a perspective view in a state where a sub seat of the motorcycle shown in (A) is removed. (C) is an exploded perspective view of the motorcycle shown in (B). (D) is a perspective view of the motorcycle shown in (C) with the bracket removed. Fig. 3 is a plan view showing a main part of the motorcycle shown in Fig. 2 (B). It is the IV-IV sectional view taken on the line of FIG. It is the VV sectional view taken on the line of FIG. FIG. 3 is an exploded perspective view of a sub seat of the motorcycle shown in FIG. It is the perspective view which looked at the reinforcement member main-body part of the sub sheet | seat shown in FIG. 6 from upper direction. FIG. 3 is a perspective view in which a main part of the motorcycle shown in FIG. FIG. 3 is a plan view showing a main part of the motorcycle shown in FIG. FIG. 10 is a sectional view taken along line XX in FIG. 9. It is the XI-XI sectional view taken on the line of FIG. It is the XII-XII sectional view taken on the line of FIG.

  Hereinafter, embodiments will be described with reference to the drawings. In addition, the concept of the direction used in the following description is based on the direction viewed from the driver who gets on the vehicle.

  FIG. 1 is a left side view of a motorcycle 1 according to the embodiment. As shown in FIG. 1, the motorcycle 1 is a so-called American type. The motorcycle 1 includes a front wheel 2 that is a driven wheel, a rear wheel 3 that is a driving wheel, and a metal body frame 4. The vehicle body frame 4 includes a front frame portion 5 and a rear frame portion 6 that continuously extends rearward from the front frame portion 5. A steering shaft (not shown) connected to the handle 7 is rotatably inserted into the head pipe portion 5a of the front frame portion 5, and a front fork 8 connected to the steering shaft rotatably supports the front wheel 2. To do.

  A fuel tank 9 is disposed above the front frame portion 5. The front frame portion 5 supports an engine 10 (prime mover) that generates rotational power for driving the rear wheels 3. A transmission 11 is connected to the engine 10, and power output from the transmission 11 is transmitted to the rear wheel 3 via a power transmission mechanism 12 (for example, an endless chain or belt). A front end portion of a swing arm 13 extending in the front-rear direction is pivotally supported on the vehicle body frame 4, and a rear end portion of the swing arm 13 pivotally supports the rear wheel 3.

  The rear frame portion 6 supports a main seat 14 disposed on the rear side of the fuel tank 9 and a sub-seat 15 (tandem seat) disposed on the rear side of the main seat 14. The sub seat 15 is separate from the main seat 14, and a driver is seated on the main seat 14, and a passenger is seated on the sub seat 15. The rear portion of the rear frame portion 6 supports a resin rear fender 16 that covers the rear wheel 3 from above. The rear fender 16 has an arc shape that protrudes upward in a side view, and also has an arc shape whose cross section perpendicular to the front-rear direction protrudes upward. The rear fender 16 covers the upper end portion of the rear wheel 3 in a side view. The rear fender 16 is disposed below the sub seat 15 and above the rear frame portion 6.

  FIG. 2A is a perspective view of the sub-seat 15 and the vicinity of the motorcycle 1 shown in FIG. FIG. 2 (B) is a perspective view of the motorcycle 1 shown in FIG. 2 (A) with the sub seat 15 removed. FIG. 2 (C) is an exploded perspective view of the motorcycle 1 shown in FIG. 2 (B). FIG. 2 (D) is a perspective view of the motorcycle 1 shown in FIG. 2 (C) with the bracket 17 removed. As shown in FIGS. 2A and 2B, the sub-seat 15 is disposed on the upper side of the rear fender 16 so that the front portion thereof overlaps the rear portion of the main seat 14. The front portion of the sub seat 15 is detachably engaged with a bracket 17 having an engaged portion 34 described later, and the rear portion of the sub seat 15 is detachably fixed to the vehicle body frame 4 via the rear fender 16. The bracket 17 is separate from the main seat 14 and is disposed on the upper side of the rear fender 16. The bracket 17 is detachably fastened to the vehicle body frame 4 through the rear fender 16 by a first fastening member 18 (for example, a bolt). The rear portion of the sub-seat 15 is provided with a stay portion 19 that protrudes rearward. The stay portion 19 is detachably fastened to the vehicle body frame 4 through the rear fender 16 by a second fastening member 20 (for example, a bolt). That is, the stay portion 19 of the sub seat 15 is a fixed portion that is fixed to the vehicle body frame 4 at a position away from the bracket 17 in the front-rear direction.

  In order to change from the state in which both the main seat 14 and the sub seat 15 are provided to the state in which only the main seat 14 is provided, first, as shown in FIGS. 2 (A) and 2 (B), the second fastening member After removing 20, the sub-sheet 15 is moved rearward to release the engagement with the bracket 17, and the sub-sheet 15 is removed. Next, the second fastening member 20 is fastened to the vehicle body frame 4 through the rear fender 16 again. Next, as shown in FIG. 2C, the first fastening member 18 is removed and the bracket 17 is removed. When the bracket 17 is removed, the stay portion 21 of the main seat 14 that is fastened together with the bracket 17 by the first fastening member 18 is exposed. Next, as shown in FIG. 2D, the stay portion 21 of the main seat 14 is fastened to the vehicle body frame 4 through the rear fender 16 by the first fastening member 18. In this way, the change from the state in which both the main seat 14 and the sub-seat 15 are provided to the state in which only the main seat 14 is provided is completed.

  FIG. 3 is a plan view showing a main part of the motorcycle 1 shown in FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 5 is a cross-sectional view taken along line VV in FIG. As shown in FIGS. 3 to 5, the rear frame portion 6 of the vehicle body frame 4 is connected to the pair of rail portions 22 that are separated in the left-right direction and extend in the front-rear direction, and the pair of rail portions 22 that extend in the left-right direction. A front cross portion 23 and a rear cross portion 24. The front cross part 23 and the rear cross part 24 have an arc shape that is convex upward when viewed from the front-rear direction. The front cross part 23 and the rear cross part 24 are separated from each other in the front-rear direction, and a gap S <b> 1 is formed between the front cross part 23 and the rear cross part 24. The front cross portion 23 is provided with only one vehicle body side support portion 25 positioned at the center of the rear frame portion 6 in the vehicle width direction, and the rear cross portion 24 is also positioned at the center of the rear frame portion 6 in the vehicle width direction. Only one vehicle body side support portion 26 is provided. The front vehicle body side support portion 25 corresponds to the front portion of the sub seat 15, and the rear vehicle body side support portion 26 corresponds to the rear portion of the sub seat 15.

  The front vehicle body side support portion 25 has an upwardly protruding dome portion 25a fixed to the upper surface of the front cross portion 23, and a nut portion 25b fixed to the upper surface of the dome portion 25a. The nut portion 25b has a cylindrical shape, and a female screw is engraved on the inner peripheral surface thereof. A cylindrical rubber damper 27 is fitted on the nut portion 25b. The rear fender 16 is formed with a front opening 16a that exposes the nut portion 25b when viewed from above. The rubber damper 27 elastically supports the periphery of the front opening 16a of the rear fender 16 from below.

  The main sheet 14 includes a leather skin 28, a resin bottom plate member 29, a urethane elastic member 30 disposed between the skin 28 and the bottom plate member 29, and a fastener 31 at the rear of the bottom plate member 29. (For example, a bolt and a nut) and a metal stay portion 21 that protrudes rearward from the skin 28 and the bottom plate member 29. The portion of the stay portion 21 that protrudes rearward from the bottom plate member 29 is a mountain-shaped plate portion that tapers toward the rear (see FIG. 2C). The stay portion 21 is formed with a fastening hole 21a.

  The bracket 17 for the sub-seat 15 includes a vehicle body fixing portion 32 for fixing to the vehicle body side support portion 25 behind the main seat 14 and a pair of side wall portions 33 projecting obliquely forward and upward from the left and right ends of the vehicle body fixing portion 32. And an engaged portion 34 that is fixed to the upper ends of the pair of side wall portions 33 and extends in the vehicle width direction, and a pair of receiving portions 35 that respectively protrude outward from the pair of side wall portions 33 in the vehicle width direction. A fastening hole 32 a is formed in the vehicle body fixing portion 32. The vehicle body fixing portion 32 has a fitting portion 32b that is fitted to the stay portion 21 of the main seat 14 so that relative angular displacement is impossible in a plan view. The fitting portion 32 b is a concave portion that has a lower surface of the vehicle body fixing portion 32 that is depressed upward and opened forward, and has a shape that follows the outer shape of the stay portion 21 of the main seat 14.

  The pair of side wall portions 33 are located on both the left and right sides of the fastening hole 32a in plan view. The engaged portion 34 connects the upper ends of the pair of side wall portions 33 in the vehicle width direction, and extends more outward in the vehicle width direction than the pair of side wall portions 33. The engaged portion 34 has a pipe shape. The engaged portion 34 is disposed away from the vehicle body fixing portion 32 and is engaged with an engaging portion 42 d described later of the sub seat 15. The engaged portion 34 is located in front of the vehicle body fixing portion 32. The main seat 14 has a rear end surface 14a inclined forward from the bottom to the top, and the bracket 17 overlaps the rear end surface 14a of the main seat 14 in plan view. That is, the engaged portion 34 is positioned in front of the rear end 14b of the main seat 14. However, the engaged portion 34 is disposed rearwardly from the rear end surface 14a of the main seat 14. The receiving portion 35 is disposed above the vehicle body fixing portion 32 and below the engaged portion 34. The receiving portion 35 is for supporting the sub-sheet 15 from below.

  The first fastening member 18 is fastened to the nut portion 25b through the hole 21a of the stay portion 21 and the hole 32a of the bracket 17 in a state where the fitting portion 32b of the bracket 17 is fitted to the stay portion 21 of the main seat 14 from above. Is done. Thus, the first fastening member 18 detachably fastens the bracket 17 and the stay portion 21 to the front vehicle body side support portion 25 through the front opening portion 16a of the rear fender 16. An annular cap 37 located on the outer peripheral side of the upper end portion of the nut portion 25 b is sandwiched between the stay portion 21 and the rear fender 16. The cap 37 is made of a resin that is more flexible than the rear fender 16. That is, the first fastening member 18 fastens the bracket 17, the stay part 21, and the rear fender 16 together with the rear frame part 6. The 1st fastening member 18 is arrange | positioned in the position which does not overlap with the to-be-engaged part 34 seeing from upper direction. Specifically, the engaged portion 34 is disposed forward from the first fastening member 18 at a distance T as seen from above, and exposes the first fastening member 18. Both the first fastening member 18 and the engaged portion 34 are arranged at the center in the vehicle width direction of the rear fender 16 and are arranged on the vehicle body center line L extending in the front-rear direction in plan view.

  The rear vehicle body side support portion 26 has a nut portion 26 a fixed to the upper surface of the rear cross portion 24. The nut portion 26a has a cylindrical shape, and a female screw is engraved on the inner peripheral surface thereof. A cylindrical rubber damper 38 is fitted on the nut portion 26a. The rear fender 16 is formed with a rear opening 16b that exposes the nut portion 26a when viewed from above. The rubber damper 38 elastically supports the periphery of the rear opening 16b of the rear fender 16 from below.

  In the state where the sub-sheet 15 is removed, the second fastening member 20 is fastened to the nut portion 26 a via the washer 39. An annular cap 40 located between the washer 39 and the rear fender 16 is positioned on the outer peripheral side of the upper end portion of the nut portion 26a. The cap 40 is made of a resin that is more flexible than the rear fender 16. Thus, the second fastening member 20 is detachably attached to the rear vehicle body side support portion 26 through the rear opening 16b of the rear fender 16.

  FIG. 6 is an exploded perspective view of the sub seat 15 of the motorcycle 1 shown in FIG. FIG. 7 is a perspective view of the reinforcing member main body 46 of the sub-sheet 15 shown in FIG. 6 as viewed from above. As shown in FIGS. 6 and 7, the sub-sheet 15 includes a leather skin 41, a resin bottom plate member 42, a urethane elastic member 43 disposed between the skin 41 and the bottom plate member 42, and A metal reinforcing member 44 that extends along the lower surface of the bottom plate member 42 and is fixed to the bottom plate member 42, and a leather belt 45 that is gripped by the user. The sub seat 15 has a dimension in the front-rear direction larger than the dimension in the vehicle width direction.

  The skin 41 is fixed to the bottom plate member 42 with a stapler. The bottom plate member 42 has a cross-sectional shape that is recessed upward. The bottom plate member 42 includes a pair of left and right front reinforcing member fixing portions 42 a corresponding to the front portion of the sub-sheet 15 and a pair of left and right rear reinforcing member fixing portions corresponding to the rear portion of the sub-sheet 15. 42b. The front reinforcing member fixing portion 42 a also serves as a belt fixing portion for fixing the belt 45. In the bottom plate member 42, a plurality of irregularities are formed in an intermediate portion 42c between the front reinforcing member fixing portion 42a and the rear reinforcing member fixing portion 42b. The bottom plate member 42 has an engaging portion 42d that engages with the engaged portion 34 of the bracket 17 described above. The engaging portion 42 d is a protruding portion that protrudes forward, and is provided at the front portion of the bottom plate member 42 behind the front end of the sub-sheet 15.

  The reinforcing member 44 is formed by detachably connecting a first divided piece 46 and a second divided piece 19 formed by pressing a metal plate. The first divided piece 46 has larger dimensions in the front-rear direction and the vehicle width direction than the second divided piece 19. Hereinafter, the first divided piece 46 is referred to as a reinforcing member main body 46, and the second divided piece 19 is referred to as a stay portion 19.

  The reinforcing member main body 46 is fixed to the front reinforcing member fixing portion 42a with a fastener 48 (for example, bolts and nuts), and the fastener 49 (for example, bolts and nuts) to the rear reinforcing member fixing portion 42b. It is fixed with. The belt 45 is fastened together with the reinforcing member main body 46 to the front reinforcing member fixing portion 42 a by a fastener 48. The stay portion 19 is fixed to the rear reinforcing member fixing portion 42 b and protrudes rearward from the rear end of the bottom plate member 42 of the sub seat 15 and is fixed to the vehicle body side support portion 26 of the rear frame portion 6. The reinforcing member main body portion 46 and the stay portion 19 are overlapped with each other and fastened together with a fastener 49 to the rear reinforcing member fixing portion 42b. The reinforcing member 44 is formed by connecting a plurality of divided pieces 46 and 19 to each other, thereby preventing an increase in the production unit of the reinforcing member and suppressing variation in dimensional accuracy due to a springback or the like.

  The reinforcing member 44 extends in the front-rear direction from the front side to the rear side of the sub-seat 15. The reinforcing member 44 has a dimension in the front-rear direction larger than the dimension in the vehicle width direction. The reinforcing member 44 has a smaller dimension in the vehicle width direction than the bottom plate member 42. Since the vehicle body side support portions 25 and 26 (see FIG. 5) of the rear frame portion 6 described above are disposed at the center in the vehicle width direction of the sub seat 15, an increase in the size in the vehicle width direction of the reinforcing member 44 is prevented.

  The reinforcing member 44 has an intermediate portion 44 a that faces the bottom plate member 42 from below between the front vehicle body side support portion 25 and the rear vehicle body side support portion 26. Specifically, the reinforcing member main body 46 comes into contact with the intermediate portion 42c of the bottom plate member 42 so as to face from below. At the center in the vehicle width direction of the front end portion of the reinforcing member main body 46, a cutout portion 46b cut out rearward is formed. A pair of projecting portions 46 c projecting upward on both sides in the vehicle width direction of the notch portions 46 b are provided at the front end portion of the reinforcing member main body portion 46. Rubber dampers 50 are attached to the lower surface of the front end portion of the reinforcing member main body 46 on both sides of the notch 46b in the vehicle width direction. The reinforcing member main body 46 has a step 46d extending in the vehicle width direction on the front side of the center in the front-rear direction. In the reinforcing member main body 46, the front portion of the step portion 46d is positioned above the rear portion of the step portion 46d.

  The reinforcing member main body 46 is formed with a plurality of ribs 46e and 46f extending in the front-rear direction corresponding to a region between the front vehicle body side support portion 25 and the rear vehicle body side support portion 26. The ribs 46e and 46f are formed so as to protrude downward by pressing. The rib 46e is formed in the center of the reinforcing member main body 46 in the vehicle width direction, and extends from the stepped portion 46d to the rear end of the reinforcing member main body 46. The ribs 46f are formed at both ends in the vehicle width direction of the reinforcing member main body 46, extend rearward from the stepped portion 46d, and have a length in the front-rear direction smaller than the central rib 46e.

  The stay portion 19 includes a coupling portion 19a that is fastened to the reinforcing member fixing portion 42b, an intermediate portion 19b that extends obliquely downward and rearward from the coupling portion 19a, and protrudes rearward from the intermediate portion 19b to the rear end of the bottom plate member 42 and is fastened. And a fixing portion 19c in which a hole 19d is formed. The fixing portion 19c of the stay portion 19 has a mountain shape that tapers toward the rear (see FIG. 2A).

  FIG. 8 is a perspective view in which the main part of the motorcycle 1 shown in FIG. FIG. 9 is a plan view showing a main part of the motorcycle 1 shown in FIG. 10 is a cross-sectional view taken along the line XX of FIG. 11 is a cross-sectional view taken along line XI-XI in FIG. 12 is a cross-sectional view taken along line XII-XII in FIG. As shown in FIGS. 8 to 12, in the state where the sub-sheet 15 is attached in the seat structure of the present embodiment, the front end portion of the sub-sheet 15 is superimposed on the rear end surface 14 a of the main seat 14 that is inclined forward from above. The engaging portion 42 d of the sub seat 15 is engaged with the engaged portion 34 of the bracket 17, and the stay portion 19 of the sub seat 15 is fastened to the rear body side support portion 26 by the second fastening member 20.

  Specifically, the engaging portion 42d of the sub-sheet 15 is provided below the engaged portion 34 of the bracket 17 and a pair of side walls so that the bracket 17 is disposed in the notch 46b of the reinforcing member main body 46. It is inserted into the space between the parts 33 from the rear. When the engaging portion 42d interferes with the engaged portion 34, the upward movement of the sub-sheet 15 is restricted, and when the engaging portion 42d interferes with the side wall portion 33, the sub-sheet 15 moves in the left-right direction. Is regulated. Further, the protrusion 46 c of the reinforcing member 44 faces the engaged portion 34 from below on the outer side in the vehicle width direction of the pair of side wall portions 33. That is, when the belt 45 is pulled and the sub-sheet 15 is about to move upward, the protrusion 46c of the reinforcing member 44 also interferes with the engaged portion 34, so that the upward movement of the sub-sheet 15 is stably performed. Be regulated. Since the engaged portion 34 of the bracket 17 faces the lower surface of the bottom plate member 42 of the sub sheet 15, it also has a function of supporting the bottom plate member 42 from below. The front end portion of the reinforcing member main body 46 of the sub-sheet 15 is placed on the receiving portion 35 of the bracket 17 from above via a rubber damper 50 attached to the lower surface thereof.

  Further, the second fastening member 20 is fastened to the nut portion 26a through the hole 19d of the fixing portion 19c of the stay portion 19 of the sub seat 15. Thus, the second fastening member 20 detachably fastens the stay portion 19 and the rear fender 16 to the rear vehicle body side support portion 26 through the rear opening portion 16b of the rear fender 16. During the fastening operation, the engaging portion 42d interferes with the side wall portion 33 of the bracket 17 to prevent the sub-sheet 15 from being angularly displaced around the second fastening member 20.

  The rear fender 16 faces the reinforcing member 44 from below and faces the rear frame portion 6 from above. The reinforcing member 44 extends between the front vehicle body side support portion 25 and the rear vehicle body side support portion 26. The reinforcing member main body 46 is disposed with a gap in the vertical direction with respect to the rear fender 16 below the reinforcing member main body 46. That is, an intermediate portion 44 a located between the front vehicle body side support portion 25 and the rear vehicle body side support portion 26 of the reinforcing member 44 is disposed with a gap from the rear fender 16 and is supported by the rear fender 16. Not. In the region between the front vehicle body side support portion 25 and the rear vehicle body side support portion 26, the rear frame portion 6 does not support the rear fender 16. The intermediate portion 44 a of the reinforcing member 44 is located above the gap S <b> 1 between the front cross portion 23 and the rear cross portion 24 of the rear frame portion 6. The lower ends of the left and right sides of the sub-seat 15 are spaced from the upper surface of the rear fender 16.

  According to the configuration described above, since the bracket 17 for the sub seat 15 is detachably fixed to the vehicle body frame 4 by the first fastening member 18, when the sub seat 15 is not installed, If the separate sub-seat 15 is removed from the bracket 17 and the bracket 17 is removed from the vehicle body frame 4, the bracket 17 does not remain in the upper region of the rear fender. Therefore, even if the sub-sheet 15 is removed and the upper surface of the rear fender 16 is exposed, the aesthetic appearance is kept good. Even when the bracket 17 for the sub seat 15 is removed, the first fastening member 18 functions to fasten the stay portion 21 of the main seat 14. Therefore, even when the sub seat 15 is not installed, the first fastening member 18 is used. It is not necessary to undesirably expose the fastening target portion, and it is not necessary to form a dedicated opening in the rear fender 16 for fastening the bracket 17 to the vehicle body frame 4. Therefore, a specification in which both a driver's seat and a passenger's seat are provided, and a specification in which only the driver's seat is provided without a passenger's seat are realized in a common vehicle without impairing the appearance. be able to.

  The first fastening member 18 fastens the bracket 17 and the rear fender 16 together with the vehicle body frame 4, and the second fastening member 20 fastens the stay portion 19 and the rear fender 16 together with the vehicle body frame 4. The portion is made common with the fixing portion of the bracket 17 and the fixing portion of the sub-seat 15, and the aesthetic appearance can be improved. In addition, by placing the bracket 17 on the stay portion 21, the bracket 17 can be prevented from coming into contact with the rear fender 16, and the rear fender 16 can be prevented from being damaged by the bracket 17. Further, since the stay portion 21 and the first fastening member 18 are disposed at the center of the rear fender 16 in the vehicle width direction, the stay portion 21 and the first fastening member 18 are disposed at the uppermost portion of the rear fender 16 on the cut surface perpendicular to the front-rear direction. Thereby, even if the bracket 17 is extended in the horizontal direction when viewed from the first fastening member 18, the contact between the bracket 17 and the rear fender 16 can be prevented. Further, since the receiving portion 35 of the bracket 17 is disposed above the vehicle body fixing portion 32, the contact between the receiving portion 35 and the rear fender 16 is preferably prevented, and the upper surface of the rear fender 16 is damaged by the contact. Can be prevented.

  Further, since the bracket 17 has the fitting portion 32b that is fitted to the stay portion 21 so as not to be relatively angularly displaced, when the bracket 17 is fastened by the first fastening member 18, a complicated detent mechanism is not provided. In both cases, it is possible to easily prevent the bracket 17 from rotating. In other words, the rotation preventing portion (fitting portion 32b) of the bracket 17 is formed with a recess recessed upward corresponding to the stay portion 21, and can be prevented by fitting the stay portion 21 and the rotation preventing portion. Further, since the relative movement in the forward direction and the lateral direction of the bracket 17 with respect to the stay portion 21 is prevented in a state in which the fitting portion 32b of the bracket 17 and the stay portion 21 are fitted, the joint by the first fastening member 18 is prevented. Tightening work becomes easier. Specifically, the stay portion 21 is formed in a tapered shape as it moves backward, so that the forward and lateral movement of the bracket 17 fitted thereto can be prevented.

  Further, since the engaged portion 34 of the bracket 17 is positioned in front of the vehicle body fixing portion 32, it can be easily arranged such that the front end portion of the sub seat 15 overlaps the rear end portion of the main seat 14 from above. In addition, the front end portion of the sub-seat 15 and the rear end portion of the main seat 14 are arranged so as to overlap in the front-rear direction and the vertical direction, so that a sense of unity can be given to the sheets 14 and 15 and the aesthetic appearance is improved To do. Further, since the engaged portion 34 is disposed in front of the first fastening member 18, the gripping belt 45 provided in the sub seat 15 can be disposed as far as possible, and the sub seat 15 can be enlarged. Can be prevented. Further, by arranging the belt 45 in a portion of the sub seat 15 that overlaps the rear end portion of the main seat 14 from above, the rear end portion of the sub seat 15 can be brought closer to the main seat 14 side, and the center of gravity is centered on the vehicle body. Can be brought closer. Moreover, the vertical dimension of the elastic material 43 (for example, urethane material) arrange | positioned in the passenger's seating part among the sub seats 15 can be enlarged.

  Further, since the sub-sheet 15 includes the reinforcing member 44 that extends along the lower surface of the resin-made bottom plate member 42 and is fixed to the bottom plate member 42, the reinforcing member 44 supports the load applied to the bottom plate member 42, The support location which should be formed in the vehicle body side for supporting the load loaded on the sheet | seat 15 can be reduced. Further, since the reinforcing member 44 extends between the front vehicle body side support portion 25 and the rear vehicle body side support portion 26, the load from the bottom plate member 42 is applied to the rear frame portion 6 via the reinforcement member 44. Since it is transmitted, the bending of the reinforcing member 44 can be suppressed.

  Further, since the intermediate portion 44a of the reinforcing member 44 is disposed with a gap in the vertical direction with respect to the rear fender 16 below the reinforcing member 44, even if the intermediate portion 44a of the reinforcing member 44 is slightly bent, it is reinforced to the rear fender 16. It is possible to prevent the member 44 from being pressed. Therefore, the rear frame portion 6 does not need to support the rear fender 16 only to prevent the rear fender 16 from being deformed by the load from the sub-seat 15. Therefore, it is possible to form the gap S1 in the region immediately below the intermediate portion 44a of the reinforcing member 44 in the rear frame portion 6, which contributes to the weight reduction of the vehicle body. Further, since the intermediate portion 44a of the reinforcing member 44 is prevented from being pressed against the rear fender 16, the rear fender 16 can be made of resin instead of metal, the vehicle weight can be further reduced, and the rear fender 16 can be reduced. The aesthetics of the top surface can be improved.

  Further, in the reinforcing member 44, a region between the front vehicle body side support portion 25 and the rear vehicle body side support portion 26 has a spacer (for example, a rubber damper) between the rear fender 16 and a gap between the rear fender 16 and the rear fender 16. Since it is not interposed, the trace of the spacer does not remain on the upper surface of the rear fender 16, and the aesthetic appearance of the upper surface of the rear fender 16 can be further improved. Further, since the bending deformation of the bottom plate member 42 is suppressed by the reinforcing member 44, it is possible to prevent the lower end portions of the left and right sides of the sub-sheet 15 from rubbing against the upper surface of the rear fender 16, and to further improve the appearance of the upper surface of the rear fender 16. .

  Further, since the ribs 46e and 46f extending in the front-rear direction are formed on the reinforcing member 44, the rigidity of the reinforcing member 44 is improved and the bending of the reinforcing member 44 can be suppressed. Further, since the reinforcing member fixing portion 42a for fixing the reinforcing member 44 to the bottom plate member 42 is shared when the reinforcing member main body portion 46 and the stay portion 19 are connected to each other, the structure can be simplified. Further, since the reinforcing member 44 is fastened together with the belt 45 together with the bottom plate member 42, a portion for fixing the belt 45 and a portion for fixing the reinforcing member 44 can be made common, and the fixing portion can be reduced.

  The present invention is not limited to the above-described embodiment, and the configuration can be changed, added, or deleted without departing from the spirit of the present invention. In the above-described embodiment, the motorcycle is exemplified as the saddle riding type vehicle. However, other vehicles (for example, ATV or the like) may be used as long as the user sits across the seat. In the embodiment, the engine of the internal combustion engine is used as the prime mover, but an electric motor may be used. The configuration of the present embodiment can be suitably applied to an American type motorcycle, but may be applied to a racer type or a naked type.

1 Motorcycle (saddle-ride type vehicle)
4 Body frame 14 Main seat 15 Sub seat 16 Rear fender 17 Bracket 18 First fastening member 19 Stay portion (second divided piece)
19c fixing part 20 second fastening member 21 stay part 22 rail part 23 front cross part 24 rear cross part 25, 26 vehicle body side support part 32 vehicle body fixing part 32b fitting part 33 side wall part 34 engaged part 35 receiving part 41 skin 42 bottom plate member 42a reinforcing member fixing portion 42b reinforcing member fixing portion 42d engaging portion 43 elastic member 44 reinforcing member 45 belt 46 reinforcing member main body portion (first divided piece)
46e, 46f rib S1 gap

Claims (7)

A seat for the user to sit on;
A plurality of vehicle body side support portions that support the seat, and a vehicle body frame formed at intervals in the front-rear direction; and
The sheet is
The epidermis,
A bottom plate member;
An elastic member disposed between the skin and the bottom plate member;
A reinforcing member that extends along the bottom surface of the bottom plate member and is fixed to the bottom plate member, and supports a load applied to the bottom plate member;
The plurality of vehicle body side support portions include a front vehicle body side support portion corresponding to the front portion of the seat, and a rear vehicle body side support portion corresponding to the rear portion of the seat,
The reinforcing member extends in the front-rear direction from the front side to the rear side of the seat, and has an intermediate portion that faces the bottom plate member from below between the front-side vehicle body side support portion and the rear-side vehicle body side support portion. And
The straddle-type vehicle seat structure, wherein the intermediate portion of the reinforcing member is disposed with a gap in a vertical direction with respect to a vehicle body side member positioned below and facing the intermediate portion.   The straddle-type vehicle seat structure according to claim 1, wherein the reinforcing member extends between the plurality of vehicle body side support portions. A seat for the user to sit on;
A plurality of vehicle body side support portions that support the seat, and a vehicle body frame formed at intervals in the front-rear direction; and
The sheet is
The epidermis,
A bottom plate member;
An elastic member disposed between the skin and the bottom plate member;
A reinforcing member that extends along the bottom surface of the bottom plate member and is fixed to the bottom plate member, and supports a load applied to the bottom plate member;
The reinforcing member extends in the front-rear direction from the front side to the rear side of the seat, and has an intermediate portion that faces the bottom plate member from below between the front-side vehicle body side support portion and the rear-side vehicle body side support portion. And
The intermediate portion of the reinforcing member is disposed with a gap in the vertical direction with respect to the vehicle body side member positioned below and facing the intermediate portion,
The vehicle body side member is a rear fender that faces the reinforcing member from below and is disposed above the vehicle body frame,
The vehicle body frame has a pair of rail portions that are separated in the left-right direction and extend in the front-rear direction, and a pair of cross portions that extend in the left-right direction and connect the pair of rail portions,
Each of the pair of cross portions is provided with the vehicle body side support portion,
A seat structure for a straddle-type vehicle, wherein a gap is formed between the pair of cross portions in the body frame, and the intermediate portion of the reinforcing member is located above the gap. 3. The rib according to claim 1, wherein a rib extending in the front-rear direction corresponding to a region between the front vehicle body side support portion and the rear vehicle body side support portion is formed on the reinforcing member. Seat structure for saddle-ride type vehicles. It has a seat for the user to sit on,
The sheet is
The epidermis,
A bottom plate member;
An elastic member disposed between the skin and the bottom plate member;
A reinforcing member that extends along the bottom surface of the bottom plate member and is fixed to the bottom plate member, and supports a load applied to the bottom plate member;
The bottom plate member has a reinforcing member fixing portion for fixing the reinforcing member,
The reinforcing member is formed by connecting a plurality of removable pieces.
The seat structure of a straddle-type vehicle, wherein the plurality of divided pieces are overlapped and fastened together at the reinforcing member fixing portion. A seat for the user to sit on;
A plurality of vehicle body side support portions that support the seat, and a vehicle body frame formed at intervals in the front-rear direction; and
The sheet is
The epidermis,
A bottom plate member;
An elastic member disposed between the skin and the bottom plate member;
A reinforcing member that extends along the bottom surface of the bottom plate member and is fixed to the bottom plate member, and supports a load applied to the bottom plate member;
The reinforcing member has an intermediate portion facing the bottom plate member from below between the plurality of vehicle body side support portions,
The bottom plate member fixes a reinforcing member fixing portion on the front side for fixing the reinforcing member arranged corresponding to the front portion of the sheet, and the reinforcing member arranged corresponding to the rear portion of the sheet. A reinforcing member fixing portion on the rear side for,
The reinforcing member is fixed to the first reinforcing member fixing portion on the front reinforcing member fixing portion, and fixed to the rear reinforcing member fixing portion, and protrudes rearward from the rear end portion of the seat so as to protrude from the vehicle body frame. A straddle-type vehicle seat structure, wherein the first divided piece is fastened together with the second divided piece on the rear reinforcing member fixing portion. The sheet further includes a belt for the user to hold,
The bottom plate member has a belt fixing portion for fixing the belt;
The straddle-type vehicle seat structure according to any one of claims 1 to 6, wherein the reinforcing member is fastened together with the belt to the belt fixing portion.

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