Saddle-type vehicle

Abstract

To suppress vibration of a muffler.SOLUTION: A saddle riding vehicle (10) includes a swing arm member (16Z or 116Z) that supports a rear wheel (15) via an axle (15a), and a muffler (50) tightened to the swing arm member (16Z or 116Z). The swing arm member (16Z or 116Z) has a plurality of tightening parts (16b1 and 16c1) behind the axle (15a). The muffler (50) is tightened for the tightening parts (16b1 and 16c1).SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a saddle-ride type vehicle. [Background technology]

[0002] Patent Document 1 discloses a saddle-ride type vehicle having a muffler fixed to a swing arm. In this saddle-ride type vehicle, the muffler is fastened to the swing arm by two bolts in front of the rear wheel axle and by one bolt behind the rear wheel axle. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-098473 Summary of the Invention [Problem to be solved by the invention]

[0004] Since the front end of the muffler is connected to the exhaust pipe and extends rearward, the rear end of the muffler is prone to vibration. In the saddle-type vehicle of Patent Document 1, the muffler is fixed to the swing arm behind the rear wheel axle, but there is room for improvement in suppressing the vibration of the muffler. The present invention has been made in consideration of the above-mentioned circumstances, and has an object to suppress vibration of a muffler. [Means for solving the problem]

[0005] According to one aspect of the present invention A saddle-ride type vehicle includes a swing arm member that supports a rear wheel via an axle, and a muffler that is fastened to the swing arm member, the swing arm member having a plurality of fastening portions rearward of the axle, and the muffler is fastened to the plurality of fastening portions, The multiple fastening portions (16b1, 16c1) are provided on a multiple number of stays (16b, 16c, 116b) formed on the swing arm member (16Z, 116Z), and the swing arm member (16Z, 116Z) further has a brake caliper (40), the brake caliper (40) is fastened to a caliper fastening portion (16b2) formed on at least one of the multiple stays (16b, 16c, 116b), and the brake caliper (40) does not overlap the muffler (50) in a side view of the vehicle. A saddle-ride type vehicle according to another aspect of the present invention is a saddle-ride type vehicle (10) having a swing arm member (16Z, 116Z) that supports a rear wheel (15) via an axle (15a) and a muffler (50) fastened to the swing arm member (16Z, 116Z), the swing arm member (16Z, 116Z) has a plurality of fastening portions (16b1, 16c1) rearward of the axle (15a), the muffler (50) is fastened to the plurality of fastening portions (16b1, 16c1), and the plurality of fastening portions (16b1, 16c1) are connected to the swing arm member (16Z, 116Z). The brake caliper (40) is provided on a plurality of stays (16b, 16c, 116b) formed on an incline arm member (16Z, 116Z), and the brake caliper (40) is fastened to a caliper fastening portion (16b2) formed on at least one of the stays (16b, 116b) among the plurality of stays (16b, 16c, 116b), and in the stay (16b, 116b) on which the caliper fastening portion (16b2) is provided, the caliper fastening portion (16b2) is located further towards the tip side than the fastening portion (16b1). Effect of the Invention

[0006] According to the present invention, vibration of the muffler can be suppressed. [Brief description of the drawings]

[0007] [Figure 1] 1 is a side view of a saddle-ride type vehicle according to an embodiment; [Diagram 2] Enlarged view of Figure 1. [Diagram 3] FIG. 2 is a rear view of the muffler according to the embodiment. [Figure 4] FIG. 2 is a side view of the brake caliper according to the embodiment. [Diagram 5] FIG. 4 is a side view of an auxiliary arm according to the embodiment. [Figure 6] FIG. 4 is a perspective view of a first stay according to the embodiment. [Figure 7] FIG. 11 is a side view of an auxiliary arm according to a second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the description, directions such as front, rear, left, right, up and down are the same as directions relative to the vehicle body unless otherwise specified. In addition, the symbol FR in each drawing indicates the front of the vehicle body, the symbol UP indicates the upper side of the vehicle body, and the symbol LH indicates the left side of the vehicle body.

[0009] [Embodiment Mode] FIG. 1 is a side view of a saddle-ride type vehicle 10 according to an embodiment of the present invention. The saddle-type vehicle 10 is a vehicle that includes a body frame 11, a power unit 12 supported by the body frame 11, a front fork 14 that supports a front wheel 13 so as to be steerable, a swing arm 16 that supports a rear wheel 15, and a seat 17 for a passenger. The saddle-ride type vehicle 10 is a vehicle in which a rider sits astride a seat 17. The seat 17 is provided above the rear part of the body frame 11.

[0010] The body frame 11 includes a head pipe 18 provided at the front end of the body frame 11, a front frame 19 located rearward of the head pipe 18, and a rear frame 20 located rearward of the front frame 19. The front end of the front frame 19 is connected to the head pipe 18. The seat 17 is supported by a rear frame 20 .

[0011] The front fork 14 is supported by a head pipe 18 so as to be steerable left and right. The front wheel 13 is supported by an axle 13a provided at the lower end of the front fork 14. A steering handle 21 that is held by a rider is attached to the upper end of the front fork 14.

[0012] The swing arm 16 is supported by a pivot shaft 22 that is supported by the body frame 11. The pivot shaft 22 is a shaft that extends horizontally in the vehicle width direction. The pivot shaft 22 is inserted into the front end of the swing arm 16. The swing arm 16 swings up and down about the pivot shaft 22. The rear wheel 15 is supported by an axle 15 a provided at the rear end of a swing arm 16 .

[0013] The power unit 12 is disposed between the front wheels 13 and the rear wheels 15 and is supported by the body frame 11. The power unit 12 is an internal combustion engine. The power unit 12 includes a crankcase 23 and a cylinder portion 24 that houses a reciprocating piston. An exhaust device 25 is connected to an exhaust port of the cylinder portion 24. The output of the power unit 12 is transmitted to the rear wheels 15 by a driving force transmission member that connects the power unit 12 and the rear wheels 15 .

[0014] The saddle-ride type vehicle 10 also includes a front fender 26 that covers the front wheel 13 from above, a rear fender 27 that covers the rear wheel 15 from above, a step 28 on which a rider places his or her feet, and a fuel tank 29 that stores fuel used by the power unit 12. The front fender 26 is attached to the front fork 14. The rear fender 27 and the step 28 are provided below the seat 17. The fuel tank 29 is supported by the body frame 11.

[0015] Fig. 2 is an enlarged view of Fig. 1, showing the rear of the saddle-ride type vehicle 10 as viewed from the right side of the vehicle. The power unit 12 of this embodiment is a so-called unit swing type engine, and swings integrally with the swing arm 16. The power unit 12 is swingably connected to a pivot shaft 22 provided on the rear frame 20 via a link.

[0016] As shown in FIGS. 1 and 2, the exhaust device 25 has an exhaust pipe 25a extending from an exhaust port of the cylinder portion 24, and a muffler 50 connected to the rear end of the exhaust pipe 25a.

[0017] The exhaust pipe 25a is a hollow pipe that curves and extends rearward from the cylinder portion 24. The exhaust pipe 25a includes a catalyzer therein that purifies the exhaust gas discharged from the cylinder portion 24, and guides the purified exhaust gas rearward to flow into the muffler 50.

[0018] Fig. 3 is a rear view of muffler 50, showing muffler 50 as seen from the rear of the vehicle. As shown in Fig. 2 and Fig. 3, muffler 50 has a muffler body 51 that is connected to exhaust pipe 25a and through which exhaust flows, and a muffler cover 59 that covers muffler body 51 from above and from the right side of the vehicle.

[0019] The muffler body 51 is a generally columnar device that is long in the front-rear direction, and muffles exhaust noise by expanding the exhaust gas flowing in from the exhaust pipe 25a inside and then discharging it into the atmosphere. The muffler body 51 has an expansion chamber that expands the exhaust gas flowing in from the exhaust pipe 25a connected to the front end 51a. The exhaust gas expanded in the expansion chamber is discharged into the atmosphere from an exhaust port 51c located at the rear end 51b of the muffler body 51.

[0020] The muffler cover 59 is a plate-like member that is bent into an L-shape when viewed from the rear. The muffler cover 59 is fastened to the muffler body 51 with bolts.

[0021] 2 and 3, muffler body 51 has a first muffler side stay 53 extending upward from the center in the front-to-rear direction of muffler body 51, a second muffler side stay 55 located below first muffler side stay 53, and a third muffler side stay 57 located in front of second muffler side stay 55. Muffler side stays 53, 55, 57 are each attached to columnar muffler body 51 by welding.

[0022] The first muffler side stay 53 has a first muffler side fastening portion 53a having a hole penetrating therethrough in the vehicle width direction and into which the first fastening member 33 is inserted.

[0023] The second muffler side stay 55 extends downward from the muffler body 51. The second muffler side stay 55 has a second muffler side fastening portion 55a having a hole that penetrates in the vehicle width direction and into which the second fastening member 35 is inserted.

[0024] The third muffler side stay 57 extends downward from the muffler body 51. The third muffler side stay 57 has a third muffler side fastening portion 57a ​​having a hole that penetrates in the vehicle width direction and into which the third fastening member 37 is inserted.

[0025] The fastening members 33, 35, 37 are, for example, bolts or screws, and are bolts in this embodiment. The muffler body 51 is fastened to the swing arm 16 by the fastening members 33, 35, 37 inserted into the muffler side fastening parts 53a, 55a, 57a from the right side of the vehicle (outside in the vehicle width direction). In this embodiment, the center of gravity G of the muffler body 51 is located inside the triangle formed by the muffler side fastening parts 53a, 55a, 57a when viewed from the side of the vehicle, and vibration of the muffler body 51 relative to the swing arm 16 is easily suppressed.

[0026] 4 is a side view of the brake caliper 40, showing the brake caliper 40 as seen from the right side of the vehicle. As shown in Fig. 2 to Fig. 4, the brake caliper 40 fixed to the swing arm 16 is disposed above the muffler 50. The brake caliper 40 applies a braking force to the rear wheel 15 by pressing a brake pad against a brake disc 15b that rotates together with the rear wheel 15.

[0027] The brake caliper 40 has a caliper body 41 having brake pads, a front connecting member 43 connected to a front end portion 41a of the caliper body 41, and a rear connecting member 45 connected to a rear end portion 41b of the caliper body 41.

[0028] The caliper body 41 is connected to a hydraulic hose 47 that transmits the operating force of a brake lever, and the transmitted operating force presses the brake pads against the brake disc 15b.

[0029] Here, as shown in FIG. 3, the muffler 50 is located outside the brake caliper 40 in the vehicle width direction. More specifically, the muffler body 51 is located outside the caliper body 41 in the vehicle width direction, and the center of the muffler body 51 in the vehicle width direction is located outside the outer side surface 41c of the caliper body 41 facing the outer side in the vehicle width direction. Also, an inner side surface 51d of the muffler body 51 facing the inner side in the vehicle width direction and the outer side surface 41c of the caliper body 41 are located at approximately the same position in the vehicle width direction. More specifically, the inner side surface 51d of the muffler body 51 is located slightly inside the outer side surface 41c of the caliper body 41 in the vehicle width direction. That is, a position R1 occupied by the caliper body 41 in the vehicle width direction partially overlaps with a position R2 occupied by the muffler body 51 in the vehicle width direction. Therefore, compared to a case where position R1 and position R2 do not overlap, the muffler 50 is more likely to be disposed on the inner side in the vehicle width direction, and the saddle type vehicle 10 is more likely to bank without the muffler 50 coming into contact with the road surface.

[0030] The front connecting member 43 has a first caliper side fastening portion 43a having a hole penetrating in the vehicle width direction and for fastening the first caliper fastening member 32. Similarly, the rear connecting member 45 has a second caliper side fastening portion 45a having a hole penetrating in the vehicle width direction and for fastening the second caliper fastening member 34.

[0031] The caliper fastening members 32, 34 are, for example, bolts or screws, and are bolts in this embodiment. The brake caliper 40 is fastened to the swing arm 16 by the caliper fastening members 32, 34 which are inserted into the caliper side fastening portions 43a, 45a from the right side of the vehicle.

[0032] Fig. 5 is a side view of the auxiliary arm 16Z, showing an enlarged view of the rear portion of the auxiliary arm 16Z. Also, in Fig. 5, a muffler 50 is shown by a dashed line. The swing arm 16 has an auxiliary arm (swing arm member) 16Z, which is a member that supports the axle 15a. The auxiliary arm 16Z is disposed on the right side of the vehicle in the saddle-ride type vehicle 10. The auxiliary arm 16Z has an arm main body 16a whose front end is attached to the right side surface of the crankcase 23 and whose rear end passes through the axle 15a of the rear wheel 15, and a first stay 16b and a second stay 16c that extend rearward from the rear end of the arm main body 16a.

[0033] The arm body 16a is elongated in the front-rear direction and has a bearing 16a1 at the rear end, a body side fastening portion 16a2 at a portion extending downward from the lower edge, and a first caliper fastening portion 16a3 at the upper edge. The bearing 16a1 supports the axle 15a extending in the vehicle width direction.

[0034] The main body side fastening portion 16a2 has a hole through which the third fastening member 37 (see FIG. 2) inserted into the third muffler side fastening portion 57a ​​can be fastened from the right side of the vehicle. The main body side fastening portion 16a2 is fastened to the third muffler side fastening portion 57a ​​by the third fastening member 37. The main body side fastening portion 16a2 is formed on the lower edge of the midway portion in the front-rear direction of the arm main body portion 16a, and is therefore located further forward and lower than the bearing portion 16a1 formed at the rear end portion of the arm main body portion 16a. In other words, the main body side fastening portion 16a2 is provided further forward and lower than the axle 15a of the rear wheel 15.

[0035] The first caliper fastening portion 16a3 has a hole through which the first caliper fastening member 32 (see FIGS. 2 and 4) inserted into the first caliper side fastening portion 43a can be fastened from the right side of the vehicle. The caliper fastening portion 16a3 is fastened to the first caliper side fastening portion 43a by the caliper fastening member 32.

[0036] The first stay 16b is a stay that protrudes upward and rearward from the bearing portion 16a1 in a side view. The first stay 16b extends from a portion of the bearing portion 16a1 that is rearward of the center of the axle 15a. In other words, at least a part of the base of the first stay 16b that connects to the arm body portion 16a is located rearward of the center of the axle 15a in a side view. The first stay 16b is substantially triangular in shape that tapers toward the tip in a side view of the vehicle. The first stay 16b is formed with a first fastening portion (fastening portion, upper fastening portion) 16b1 and a second caliper fastening portion 16b2.

[0037] The first fastening portion 16b1 is located at the middle of the first stay 16b in the longitudinal direction, and has a hole through which the first fastening member 33 (see FIG. 2) inserted into the first muffler side fastening portion 53a can be fastened from the right side of the vehicle. The first fastening portion 16b1 is fastened to the first muffler side fastening portion 53a by the first fastening member 33. The first fastening portion 16b1 is provided on the first stay 16b, which extends rearward and upward from a point rearward of the center of the axle 15a, and therefore the first fastening portion 16b1 is located rearward and above the axle 15a. In other words, the first stay 16b is provided on a straight line (line) L1 connecting the first fastening portion 16b1 and the axle 15a, and the straight line L1 can be said to extend rearward and upward from the axle 15a. More specifically, when viewed from the side of the vehicle, the first stay 16b overlaps an imaginary straight line L1 connecting the center of the first fastening portion 16b1 and the center of the axle 15a, and the straight line L1 extends rearward and upward from the center of the axle 15a.

[0038] The second caliper fastening portion 16b2 is located on the tip side of the first fastening portion 16b1 on the first stay 16b, and is located rearward and upward of the first fastening portion 16b1. The second caliper fastening portion 16b2 has a hole through which the second caliper fastening member 34 (see FIGS. 2 and 4) inserted into the second caliper side fastening portion 45a can be fastened from the right side of the vehicle. The second caliper fastening portion 16b2 is fastened to the second caliper side fastening portion 45a by the second caliper fastening member 34.

[0039] In this manner, the brake caliper 40 is fixed to the auxiliary arm 16Z by fastening the caliper side fastening portions 43a, 45a to the caliper fastening portions 16a3, 16b2 by the caliper fastening members 32, .

[0040] Here, as shown in FIG. 5, the caliper fastening parts 16a3, 16b2 are positioned so as not to overlap the muffler 50 in a side view from the right side of the vehicle. Therefore, as shown in FIG. 4, the caliper side fastening parts 43a, 45a and the caliper fastening members 32, 34 of the brake caliper 40 are positioned so as not to overlap the muffler 50 in a side view from the right side of the vehicle. This makes it easy to access the caliper fastening members 32, 34 from the right side of the vehicle without removing the muffler 50 from the auxiliary arm 16Z, and makes it easy to attach and detach the brake caliper 40 to and from the auxiliary arm 16Z. In particular, in this embodiment, due to the arrangement of the caliper fastening parts 16a3, 16b2, the entire brake caliper 40 is positioned so as not to overlap the muffler 50 in a side view from the right side of the vehicle. Therefore, it becomes even easier to attach and detach the brake caliper 40 to and from the auxiliary arm 16Z.

[0041] The second stay 16c is a stay that protrudes rearward and downward from the bearing portion 16a1 in a side view. The second stay 16c extends from a portion of the bearing portion 16a1 that is rearward of the center of the axle 15a. In other words, at least a part of the base of the second stay 16c that connects to the arm body portion 16a is located rearward of the center of the axle 15a in a side view. The second stay 16c is substantially triangular in shape that tapers toward the tip in a side view, and in this embodiment, is thicker than the first stay 16b in a side view of the vehicle. The second stay 16c is formed with a second fastening portion (fastening portion, lower fastening portion) 16c1.

[0042] The second fastening portion 16c1 is located at the tip of the second stay 16c, and has a hole through which the second fastening member 35 (see FIG. 2) inserted into the second muffler side fastening portion 55a can be fastened from the right side of the vehicle. The second fastening portion 16c1 is fastened to the second muffler side fastening portion 55a by the second fastening member 35. The second fastening portion 16c1 is provided at the tip of the second stay 16c, which extends rearward and downward from a point rearward of the center of the axle 15a, and therefore the second fastening portion 16c1 is located rearward and below the axle 15a. In other words, the second stay 16c is provided on a straight line (line) L2 connecting the second fastening portion 16c1 and the axle 15a, and the straight line L2 can be said to extend rearward and downward from the axle 15a. More specifically, when viewed from the side of the vehicle, the second stay 16c overlaps an imaginary straight line L2 connecting the center of the second fastening portion 16c1 and the center of the axle 15a, and the straight line L2 extends rearward and downward from the center of the axle 15a.

[0043] In this way, the muffler 50 is fastened to the auxiliary arm 16Z at three points, the main body side fastening portion 16a2 and the fastening portions 16b1 and 16c1. Here, since the two fastening portions 16b1 and 16c1 are located rearward of the axle 15a, the position at which the muffler main body 51 is fastened to the auxiliary arm 16Z is further rearward than when the fastening portions 16b1 and 16c1 are located forward of the axle 15a. As a result, the length of the portion of the muffler main body 51 that is rearward of the muffler side fastening portions 53a and 55a fastened to the auxiliary arm 16Z, that is, the length of the portion that vibrates as a free end with respect to the auxiliary arm 16Z, tends to be shortened. Therefore, the vibration of the muffler main body 51 is easily suppressed. In addition, since the length of the portion of the muffler main body 51 that vibrates as a free end is short and the mass of the vibrating portion is small, it is easy to suppress stress concentration on the fastening portions 16b1 and 16c1.

[0044] In addition, in this embodiment, first fastening portion 16b1 is provided above axle 15a and second fastening portion 16c1 is provided below axle 15a, which makes it easier to suppress vibration of muffler body 51. In addition, in this embodiment, muffler body 51 is attached lower than in the case where both fastening portions 16b1, 16c1 are provided above axle 15a, making it easier to lower the center of gravity of the vehicle body.

[0045] In this embodiment, the second stay 16c formed on the straight line L2 extending downward from the axle 15a is formed longer than the first stay 16b formed on the straight line L1 extending upward. The first fastening portion 16b1 is formed in the middle of the first stay 16b in the longitudinal direction, while the second fastening portion 16c1 is formed at the tip of the second stay 16c. Therefore, in a side view of the vehicle, the distance D2 between the second fastening portion 16c1 and the axle 15a in the vertical direction of the vehicle body is greater than the distance D1 between the first fastening portion 16b1 and the axle 15a in the vertical direction of the vehicle body. Therefore, the muffler body 51 is easily disposed on the lower side of the auxiliary arm 16Z, and the center of gravity of the saddle-ride type vehicle 10 is easily lowered.

[0046] In addition, the stays 16b, 16c on which the fastening parts 16b1, 16c1 are provided are provided on straight lines L1, L2 extending rearward from the axle 15a located at the rear end of the arm main body 16a. Therefore, the length of the stays 16b, 16c required to provide the fastening parts 16b1, 16c1 rearward of the axle 15a can be shortened, and the rigidity of the stays 16b, 16c can be easily ensured. Furthermore, when the two stays 16b, 16c are bent in the vehicle width direction due to the swinging of the muffler 50, the arm main body 16a is bent from the rear side of the axle 15a, which is the starting point of the straight lines L1, L2. Therefore, when the muffler 50 is swung, the entire auxiliary arm 16Z is easily bent and local bending is unlikely to occur, so that the rigidity of the auxiliary arm 16Z and the stays 16b, 16c can be easily optimized.

[0047] Fig. 6 is a perspective view of the first stay 16b, showing the first stay 16b as seen from the vehicle right rear side. As shown in Fig. 6, the first fastening portion 16b1 and the second caliper fastening portion 16b2 are shaped to protrude from the side surface of the first stay 16b to the right side of the vehicle, i.e., outward in the vehicle width direction.

[0048] The first fastening portion 16b1 protrudes outward in the vehicle width direction from the second caliper fastening portion 16b2. That is, the vehicle width outer side surface 16b3 of the first fastening portion 16b1 facing the vehicle right side is located outward in the vehicle width direction from the vehicle width outer side surface 16b4 of the second caliper fastening portion 16b2 facing the vehicle right side. In other words, the vehicle width outer side surface 16b4 of the second caliper fastening portion 16b2 is located inward in the vehicle width direction from the vehicle width outer side surface 16b3 of the first fastening portion 16b1. The first muffler side fastening portion 53a and the second caliper side fastening portion 45a contact the vehicle width outer side surfaces 16b3 and 16b4, respectively, from the vehicle width outside. Therefore, the first muffler side fastening portion 53a is disposed further outboard in the vehicle width direction than the second caliper side fastening portion 45a, and the muffler body 51 is more likely to be disposed outboard in the vehicle width direction. As shown in Fig. 3, the muffler 50 is disposed further outboard in the vehicle width direction than the brake caliper 40. Therefore, since the muffler body 51 is more likely to be disposed outboard in the vehicle width direction, the muffler body 51 and the brake caliper 40 are more likely to be disposed apart in the vehicle width direction. Therefore, the thermal effect of the high-temperature muffler body 51 on the brake caliper 40 can be suppressed.

[0049] As described above, in this embodiment, the saddle-ride type vehicle 10 is a saddle-ride type vehicle having an auxiliary arm 16Z that supports the rear wheel 15 via the axle 15a and a muffler 50 that is fastened to the auxiliary arm 16Z, where the auxiliary arm 16Z has a plurality of fastening portions 16b1, 16c1 rearward of the axle 15a, and the muffler 50 is fastened to the plurality of fastening portions 16b1, 16c1. According to this configuration, by fastening the muffler 50 to the multiple fastening portions 16b1, 16c1 located rearward of the axle 15a, it is possible to effectively suppress vibration of the muffler 50. Therefore, it is possible to suppress stress concentration on the fastening portions 16b1, 16b1.

[0050] In the present embodiment, the multiple fastening portions 16b1, 16c1 include a first fastening portion 16b1 formed above the axle 15a and a second fastening portion 16c1 formed below the axle 15a. According to this configuration, by fastening the muffler 50 to the first fastening portion 16b1 and the second fastening portion 16c1 provided above and below the axle 15a, it becomes easier to suppress vibration of the muffler 50. In addition, the position of the muffler 50 can be lowered, and the center of gravity of the vehicle body can be lowered.

[0051] In this embodiment, a distance D2 between the second fastening portion 16c1 and the axle 15a in the vertical direction of the vehicle body is greater than a distance D1 between the first fastening portion 16b1 and the axle 15a in the vertical direction of the vehicle body. According to this configuration, the muffler 50 can be easily mounted at a lower position relative to the axle 15a, and the center of gravity of the vehicle body can be lowered.

[0052] In this embodiment, the multiple fastening portions 16b1, 16c1 are provided on multiple stays 16b, 16c formed on the auxiliary arm 16Z, and the multiple stays 16b, 16c are provided on straight lines L1, L2 connecting the fastening portions 16b1, 16c1 and the axle 15a, and the straight lines L1, L2 extend from the axle 15a as a starting point. According to this configuration, the stays 16b, 16c are provided on the straight lines L1, L2, so that the entire auxiliary arm 16Z is likely to bend when the stays 16b, 16c are bent due to vibration of the muffler 50. Therefore, local bending is unlikely to occur in the stays 16b, 16c, and it is easy to ensure the rigidity of the stays 16b, 16c.

[0053] In this embodiment, the saddle type vehicle 10 has a brake caliper 40, and the brake caliper 40 is fastened to a second caliper fastening portion 16b2 formed on the first stay 16b out of the plurality of stays 16b, 16c. According to this configuration, since the first stay 16b is provided with both the first fastening portion 16b1 and the second caliper fastening portion 16b2, there is no need to provide a new stay for fastening the brake caliper 40. Therefore, it is easy to simplify the structure of the auxiliary arm 16Z, and the manufacture of the auxiliary arm 16Z becomes easier.

[0054] In this embodiment, the muffler 50 is positioned outside the brake caliper 40 in the vehicle width direction, and the vehicle width outer surface 16b4 of the second caliper fastening portion 16b2 is positioned outside the vehicle width direction of the vehicle width outer surface 16b3 of the first fastening portion 16b1 formed on the first stay 16b having the second caliper fastening portion 16b2 among the multiple fastening portions 16b1, 16c1. According to this configuration, the muffler 50 and the brake caliper 40 can be easily spaced apart in the vehicle width direction, and the thermal effect of the muffler 50 on the brake caliper 40 can be suppressed.

[0055] In the present embodiment, the brake caliper 40 does not overlap the muffler 50 in a side view of the vehicle. According to this configuration, the brake caliper 40 can be easily accessed from the side of the vehicle, facilitating maintenance of the brake caliper 40.

[0056] In the present embodiment, a position R2 that the muffler 50 occupies in the vehicle width direction partially overlaps a position R1 that the brake caliper 40 occupies in the vehicle width direction. According to this configuration, the muffler 50 can be disposed on the inner side in the vehicle width direction, which makes it easier to make the saddle-ride type vehicle 10 compact in the vehicle width direction. Also, the saddle-ride type vehicle 10 can easily bank without the muffler 50 coming into contact with the road surface.

[0057] [Embodiment 2] Next, a description will be given of embodiment 2. Note that only the differences from the above embodiment will be described below, and a description of the same points as the above embodiment will be omitted.

[0058] FIG. 7 is a side view of the auxiliary arm 116Z according to the second embodiment, showing the auxiliary arm 116Z as seen from the right side of the vehicle. The auxiliary arm 116Z according to the second embodiment is provided with the first stay 116b of the second embodiment instead of the first stay 16b of the above embodiment. As shown in FIG. 7, the first stay 116b of the second embodiment is formed to be thicker than the first stay 16b of the above embodiment. Also, in the second embodiment, the first stay 116b is formed to be thicker than the second stay 16c. More specifically, in the side view of the vehicle, the width W1 of the first stay 116b at the connection portion between the first stay 116b and the arm main body portion 16a is larger than the width W2 of the second stay 16c at the connection portion between the second stay 16c and the arm main body portion 16a. This makes it possible to increase the rigidity of the first stay 116b, and to firmly support the muffler body 51 and the brake caliper 40.

[0059] That is, in the second embodiment, the first stay 116b on which the second caliper fastening portion 16b2 is formed is thicker than the second stay 16c. According to this configuration, the rigidity of the first stay 16b, which is fastened to both the muffler 50 and the brake caliper 40, can be easily ensured.

[0060] [Other embodiments] The above-described embodiment merely shows one aspect of the present invention, and any modification and application can be made without departing from the spirit and scope of the present invention.

[0061] In the above embodiment, the auxiliary arm 16Z of the swing arm 16 is described as having two stays 16b, 16c and two fastening parts 16b1, 16c1, but this is just an example. For example, the auxiliary arm 16Z may have one or more stays formed on lines extending from the axle 15a to the rear side of the vehicle in a side view. Also, the auxiliary arm 16Z may have three or more fastening parts that are fastened to the muffler 50 behind the axle 15a.

[0062] In the above embodiment, the two fastening portions 16b1, 16c1 provided on the auxiliary arm 16Z of the swing arm 16 rearward of the axle 15a are formed on the separate stays 16b, 16c, respectively, but this is just one example. For example, the two fastening portions 16b1, 16c1 may be formed on one stay formed on the auxiliary arm 16Z.

[0063] In the above embodiment, it has been described that, of the two fastening portions 16b1 and 16c1 located rearward of the axle 15a, the first fastening portion 16b1 is located above the axle 15a and the second fastening portion 16c1 is located below the axle 15a, but this is just an example. For example, the two fastening portions 16b1 and 16c1 may both be located above the axle 15a or both be located below the axle 15a.

[0064] In the above embodiment, the inner side surface 51d of the muffler body 51 in the vehicle width direction and the outer side surface 41c of the caliper body 41 in the vehicle width direction are described as being at approximately the same position in the vehicle width direction, but this is just one example. The inner side surface 51d does not need to be aligned with the outer side surface 41c, and may be located at the same position as the center of the caliper body 41 in the vehicle width direction, for example.

[0065] In the above embodiment, the brake caliper 40 is described as being located in a position that does not overlap the muffler 50 in a side view of the vehicle, but this is one example. For example, a portion of the brake caliper 40 may overlap the muffler 50 in a side view of the vehicle, but the caliper side fastening parts 43a, 45a may not overlap the muffler 50. Even in this case, the caliper fastening members 32, 34 can be easily removed from the right side of the vehicle, making maintenance of the brake caliper 40 easy. In addition, the muffler cover 59 can be easily attached and detached to the muffler body 51, so the muffler cover 59 may overlap the caliper side fastening parts 43a, 45a in a side view of the vehicle.

[0066] In the above-mentioned second embodiment, it has been described that the width W1 of the first stay 116b at the connection portion between the first stay 116b and the arm main body 16a is larger than the width W2 of the second stay 16c at the connection portion between the second stay 16c and the arm main body 16a, but this is just one example. In order to firmly support the muffler body 51 and the brake caliper 40, it is sufficient that the rigidity of the first stay 116b is large. For this reason, for example, the thickness of the first stay 116b in the vehicle width direction may be made larger than the thickness of the second stay 16c in the vehicle width direction to make the first stay 116b thicker than the second stay 16c, thereby increasing the rigidity of the first stay 116b.

[0067] In the above embodiment, the first caliper fastening portion 16a3 is provided on the upper edge of the arm body portion 16a, and the second caliper fastening portion 16b2 is provided on the first stay 16b, but this is just an example. For example, the first caliper fastening portion 16a3 may be provided on the second stay 16c, or may be formed on a third stay provided on a line extending rearward from the axle 15a in a side view. In this way, the caliper fastening portions 16a3 and 16b2 may be formed on multiple stays.

[0068] [Configuration supported by the above embodiment] The above embodiment supports the following configurations.

[0069] (Configuration 1) A saddle-ride type vehicle having a swing arm member that supports a rear wheel via an axle and a muffler fastened to the swing arm member, characterized in that the swing arm member has a plurality of fastening portions rearward of the axle, and the muffler is fastened to a plurality of the fastening portions. According to this configuration, by fastening the muffler to a plurality of fastening parts located at the rear of the axle, vibration of the muffler can be effectively suppressed, thereby suppressing stress concentration on the fastening parts.

[0070] (Configuration 2) The saddle-type vehicle described in Configuration 1, characterized in that the plurality of fastening portions include upper fastening portions formed above the axle and lower fastening portions formed below the axle. According to this configuration, by fastening the muffler to the upper fastening part and the lower fastening part provided above and below the axle, it becomes easier to suppress the vibration of the muffler. Also, the position of the muffler can be lowered, and the center of gravity of the vehicle body can be lowered.

[0071] (Configuration 3) A saddle-type vehicle according to configuration 2, characterized in that the distance between the lower fastening portion and the axle in the vertical direction of the vehicle body is greater than the distance between the upper fastening portion and the axle in the vertical direction of the vehicle body. According to this configuration, the muffler can be attached at a lower position relative to the axle, thereby lowering the center of gravity of the vehicle body.

[0072] (Configuration 4) A saddle-type vehicle as described in any one of configurations 1 to 3, characterized in that the multiple fastening portions are provided on multiple stays formed on the swing arm member, the multiple stays are provided on a line connecting the fastening portions and the axle, and the line extends rearward from the axle. According to this configuration, the stay is provided on a line extending rearward from the axle, so that when the stay bends due to vibration of the muffler, the entire swing arm member is likely to bend. This makes it difficult for the stay to bend locally, making it easier to ensure the rigidity of the stay.

[0073] (Configuration 5) A saddle-type vehicle as described in Configuration 4, further comprising a brake caliper, the brake caliper being fastened to a caliper fastening portion formed on at least one of the plurality of stays. According to this configuration, since the stay is provided with both the fastening portion for fastening the muffler and the caliper fastening portion for fastening the brake caliper, there is no need to provide a new stay for fastening the brake caliper, which makes it easier to simplify the structure of the swing arm member and to manufacture the swing arm member.

[0074] (Configuration 6) The saddle-type vehicle described in configuration 5, characterized in that the muffler is positioned outboard in the vehicle width direction relative to the brake caliper, and the vehicle width direction outer surface of the caliper fastening portion is positioned inboard in the vehicle width direction relative to the vehicle width direction outer surface of the fastening portion formed on the stay having the caliper fastening portion among the multiple fastening portions. With this configuration, the muffler and the brake caliper can be easily spaced apart in the vehicle width direction, and the thermal effect of the muffler on the brake caliper can be suppressed.

[0075] (Configuration 7) A saddle-type vehicle according to configuration 5 or 6, wherein the stay on which the caliper fastening portion is formed is thicker than the other stays. This configuration makes it easier to ensure the rigidity of the stay that is fastened to both the muffler and the brake caliper.

[0076] (Configuration 8) The saddle-ride type vehicle according to any one of configurations 5 to 7, wherein the brake caliper does not overlap the muffler in a side view of the vehicle. This configuration makes it easier to access the brake caliper from the side of the vehicle, facilitating maintenance of the brake caliper.

[0077] (Configuration 9) A saddle-type vehicle according to any one of configurations 5 to 8, characterized in that the position of the muffler in the vehicle width direction partially overlaps with the position of the brake caliper in the vehicle width direction. According to this configuration, the muffler can be disposed on the inner side in the vehicle width direction, which makes it easier to make the saddle-type vehicle more compact in the vehicle width direction. Also, the saddle-type vehicle can easily bank without the muffler coming into contact with the road surface. [Explanation of symbols]

[0078] 10 Saddle-type vehicles 15 Rear wheel 15a axle 16 Swingarm 16Z Auxiliary arm (swing arm component) 16a Arm body 16a1 Bearing part 16a2 Body side fastening part 16a3 First caliper fastening part 16b 1st Stay 16b1 1st fastening part (fastening part, upper fastening part) 16b2 Second caliper fastening portion (caliper fastening portion) 16b3 Outside surface in width direction 16b4 Outside surface in vehicle width direction 16c 2nd Stay 16c1 2nd fastening part (fastening part, lower fastening part) 40 Brake caliper 50 Muffler 116Z Auxiliary arm (swing arm component) 116b 1st Stay L1 straight line (line) L2 Straight line (line)

Claims

1. A saddle-ride type vehicle (10) having a swing arm member (16Z, 116Z) supporting a rear wheel (15) via an axle (15a) and a muffler (50) fastened to the swing arm member (16Z, 116Z), The swing arm member (16Z, 116Z) has a plurality of fastening portions (16b1, 16c1) rearward of the axle (15a), The muffler (50) is fastened to the plurality of fastening portions (16b1, 16c1), The plurality of fastening portions (16b1, 16c1) are provided on a plurality of stays (16b, 16c, 116b) formed on the swing arm member (16Z, 116Z), It further has a brake caliper (40), The brake caliper (40) is fastened to a caliper fastening portion (16b2) formed on at least one of the stays (16b, 116b) among the plurality of stays (16b, 16c, 116b), The brake caliper (40) does not overlap with the muffler (50) in a side view of the vehicle. A saddle-type vehicle characterized by the above.

2. The multiple fastening portions (16b1, 16c1) include an upper fastening portion (16b1) formed above the axle (15a) and a lower fastening portion (16c1) formed below the axle (15a).

2. The saddle-type vehicle according to claim 1 .

3. A distance (D2) between the lower fastening portion (16c1) and the axle (15a) in the vertical direction of the vehicle body is greater than a distance (D1) between the upper fastening portion (16b1) and the axle (15a) in the vertical direction of the vehicle body.

3. The saddle-type vehicle according to claim 2.

4. The plurality of stays (16b, 16c, 116b) are provided on a line (L1, L2) connecting the fastening portion (16b1, 16c1) and the axle (15a), and the line (L1, L2) extends from the axle (15a) to the rear of the vehicle body.

2. The saddle-type vehicle according to claim 1 .

5. The muffler (50) is disposed on the outer side of the brake caliper (40) in the vehicle width direction, a vehicle width direction outer surface (16b4) of the caliper fastening portion (16b2) is disposed on the vehicle width direction inner side than a vehicle width direction outer surface (16b3) of the fastening portion (16b1) formed on the stay (16b, 116b) having the caliper fastening portion (16b2) among the plurality of fastening portions (16b1, 16c1); 2. The saddle-type vehicle according to claim 1 .

6. The stay (116b) on which the caliper fastening portion (16b2) is formed is thicker than the other stays (16c), 2. The saddle-type vehicle according to claim 1 .

7. A position (R2) of the muffler (50) in the vehicle width direction partially overlaps a position (R1) of the brake caliper in the vehicle width direction.

2. The saddle-type vehicle according to claim 1 .

8. A saddle-type vehicle (10) having a swing arm member (16Z, 116Z) supporting a rear wheel (15) via an axle (15a), and a muffler (50) fastened to the swing arm member (16Z, 116Z), The swing arm member (16Z, 116Z) has a plurality of fastening portions (16b1, 16c1) rearward of the axle (15a), The muffler (50) is fastened to the plurality of fastening portions (16b1, 16c1), The plurality of fastening portions (16b1, 16c1) are provided on a plurality of stays (16b, 16c, 116b) formed on the swing arm member (16Z, 116Z), It further has a brake caliper (40), The brake caliper (40) is fastened to a caliper fastening portion (16b2) formed on at least one of the stays (16b, 116b) among the plurality of stays (16b, 16c, 116b), In the stay (16b, 116b) provided with the caliper fastening portion (16b2), the caliper fastening portion (16b2) is located on a tip side of the fastening portion (16b1). A saddle-type vehicle characterized by:

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