JP6076842B2 - Support structure for rear parts of motorcycle - Google Patents

Description

  The present invention relates to a structure for supporting a plurality of parts at the rear of a vehicle body in a motorcycle.

  Rear parts such as an operation unit for a rear wheel suspension device, a pannier for storing articles, and a reservoir tank for a rear brake may be attached to the rear part of the motorcycle body. As a support structure for these rear parts, a configuration is known in which the operation unit and the pannier are supported on a step stay that supports a foot step for placing a passenger's foot (see Patent Document 1).

JP 2010-234913 A

  The above-described support structure has an advantage that simplification can be achieved by using the step stay as a support member for the operation unit and the pannier. However, a part of the manual operation portion of the operation unit is located inside the step stay when viewed from the side of the vehicle body. Since it overlaps with the step stay, the operability when operating the operation unit from the outside of the vehicle body is poor. Furthermore, since the step stay is only used as the operation unit of the plurality of rear parts and the support member of the pannier, it cannot be said that the step stay is sufficiently effectively used as the support member.

  The present invention has been made in view of the above problems, and the operation unit can be attached to the step stay in an arrangement that provides high operability, and the step stay can also be effectively used to support other rear parts. An object is to provide a support structure for a rear part of a motorcycle.

  In order to achieve the above object, a motorcycle rear part support structure according to the present invention includes a step stay attached to a vehicle body frame for supporting a passenger's foot step and a unit support portion of the step stay. An operation unit that manually adjusts the characteristics of the rear wheel suspension device, a pannier support portion that is provided on the step stay and supports a front portion of an article storage pannier mounted on the side of the vehicle body, and brake oil A tank support for supporting a reservoir tank for the operation, the pannier support is disposed behind the unit support, and the operation unit of the operation unit is overlapped with the step stay and the pannier when viewed from the outside. It is arranged at a position avoiding.

  According to the support structure for the rear part, the operation unit of the operation unit is arranged on the step stay in a position where the overlap with the step stay and the pannier is avoided when viewed from the outside, that is, the entire operation unit is exposed to the outside. Since it is supported, excellent operability of the operation unit can be secured. In addition to supporting the operation unit and the pannier, the step stay also serves as a support member for the reservoir tank. Therefore, the step stay is sufficiently effectively used as a support member, and it is necessary to separately provide a support member for the reservoir tank. Absent.

  In this invention, it is preferable that the said step stay is provided with the muffler support part which supports a muffler. As a result, the step stay also serves as a support member for the muffler in addition to the support for the operation unit, the pannier and the reservoir tank, so that the step stay can be used more effectively as a support member, and there is no need to provide a separate support member for the muffler. Moreover, since both the pannier and the muffler are supported by the step stay, the mutual positional relationship can be secured, and the pannier can be prevented from coming too close to the high-temperature muffler.

  In this invention, it is preferable that the said operation unit is supported by the said step stay via the unit vibration isolator. As a result, the vibration during vehicle travel transmitted from the step stay to the operation unit is attenuated, so that the unexpected operation of the operation unit due to the vibration can be prevented.

  In the present invention, the pannier is preferably supported by the step stay via a pannier vibration isolating member. Thereby, since the vibration at the time of the vehicle body transmission transmitted to the pannier from the pannier support part of the step stay is attenuated, the vibration given to the article stored in the pannier can be suppressed.

  In the present invention, the operation unit has a pivot axis that is set substantially parallel to a lower edge of the rear frame of the vehicle body, the tank support portion is disposed below the unit support portion, and the tank It is preferable that the pannier support part is disposed behind the support part. As a result, since the operation unit is inclined rearward and upward, a large space is generated below the rear of the operation unit. Therefore, the tank support portion for the reservoir tank and the pannier support portion for the pannier are provided below the unit support portion. It is easy to dispose it sufficiently away from the operation unit.

  In this invention, it is preferable that the scale which shows the operation amount is attached | subjected to the said operation unit. Thus, by manually operating the operation unit while looking at the scale of the operation unit, the characteristics of the rear wheel suspension device can be adjusted quickly and accurately, and the operability of the operation unit is improved.

  According to the present invention, the operation unit of the operation unit is supported by the step stay at a position where the overlap with the step stay and the pannier is avoided when viewed from the outside, that is, the entire operation unit is exposed to the outside. Therefore, excellent operability of the operation unit can be secured. In addition to supporting the operation unit and the pannier, the step stay also serves as a support member for the reservoir tank and is sufficiently effectively used as a support member.

1 is a side view showing a rear part of a motorcycle including a rear part support structure according to an embodiment of the present invention. It is the expanded side view which looked at the step stay in the support structure of FIG. 1 from the vehicle body outer side. It is the enlarged side view which looked at the step stay same as the above from the vehicle body. It is the perspective view seen from the diagonally upper front side of the support structure same as the above. It is the perspective view seen from the vehicle body inside of the support structure same as the above. It is sectional drawing which shows the support part of the operation unit in a support structure same as the above. It is sectional drawing which shows the support part of the muffler in the support structure same as the above.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a side view of a motorcycle having a rear part support structure according to an embodiment of the present invention. The motorcycle body frame FR includes a main frame 1 constituting the front half portion and a rear frame 2 connected to the rear portion of the main frame 1 and constituting the rear half portion of the body frame FR. A front wheel is supported by a front fork through a front fork (not shown). A swing arm bracket 12 is provided at the lower rear end of the main frame 1. A swing arm 14 is supported by the swing arm bracket 12 via a pivot shaft 13 at the front end so as to be swingable up and down. A rear wheel 15 is supported at the rear end. An engine E is supported at the center lower portion of the main frame 1, and the rear wheels 15 are driven by the engine E. The engine E is, for example, a parallel multi-cylinder four-cycle engine.

  Exhaust gas from the engine E enters the muffler chamber 17 through an exhaust pipe 16 extending forward and rearward of the engine E and is silenced to some extent, and then enters the muffler 20 on the right side of the rear wheel 15 from the connection pipe 18. The sound is muted and discharged from the muffler 20 to the outside.

  A rider's seat 21 and a passenger's seat 22 are supported on the rear frame 2. A rear fender (not shown) is attached to the lower portion of the rear frame 2. Below the rider's seat 21, there is disposed one rear wheel suspension device 24 that is connected between the main frame 1 and the swing arm 14 in a substantially front-rear direction. A step stay 30 is mounted below the rider's seat 21 in the rear frame 2 and above the muffler 20 to support a foot step 28 that is a footrest for the passenger. A pair of left and right foot steps 28 and step stays 30 are provided.

  In addition to the step support part 29 which consists of a pair of protrusions, various rear parts are supported on the step stay 30. That is, the operation unit 25 is attached to the upper part of the step stay 30. The operation unit 25 has a hydraulic pressure of the rear wheel suspension device 24 in which the front end 24a is connected to a cross member (not shown) of the vehicle body frame FR. The characteristics are adjusted via the hydraulic hose 9 by manual operation. The article storage pannier 3 is arranged on the rear upper side of the muffler 20 in the rear part of the vehicle body, and the front part is supported by the step stay 30 with the upper part supported by the rear frame 2. Further, the reservoir tank 4 for the brake oil of the rear brake and the muffler 20 are also supported by the step stay 30. Details of these support structures will be described later.

  Next, the shape of the step stay 30 will be described with reference to FIGS. First, in FIG. 2, which is an enlarged view of the step stay 30 of FIG. 1, the step stay 30 is an integrally formed product made of metal and has a flat plate-like main body portion 31 that supports the foot step 29. The two attachment arm portions 32A and 32B for attaching to the rear frame 2 are integrally formed on the upper end of each of the attachment arm portions 32A and 32B. , Screw insertion holes 33 and 33 are formed, and the upper ends thereof are connected by a reinforcing connecting bar 34.

  A unit support portion 38 to which the operation unit 25 (FIG. 1) is attached is provided on the upper portion of the rear attachment arm portion 32B so as to protrude rearward. The unit support portion 38 includes a pair of attachment holes 40 and 40 formed in an attachment piece 39 protruding rearward from the attachment arm portion 32B. A pannier support portion 41 that supports the front portion of the pannier 3 (FIG. 1) is provided at the rear portion of the main body portion 31 of the step stay 30 so as to protrude rearward. The pannier support 41 has a bowl-shaped outer shape.

  A tank support portion 42 that supports the reservoir tank 4 (FIG. 1) is provided on the upper portion of the main body portion 31 that is located below the unit support portion 38 in the step stay 30. The tank support portion 42 includes a mounting piece 44 having a screw hole 43 and a boss 49 having a screw hole 48 shown in FIG. 3, and the mounting piece 44 and the boss 49 are spaced apart from each other in the front-rear direction. Yes.

  The step stay 30 is further provided with a muffler support 50 that supports the muffler 20 (FIG. 1) at the lower end of the main body 31. The muffler support 50 is located outside the lower end of the main body 31. A cylindrical support body 51 projecting in the direction and a circular support hole 52 formed concentrically on the support body 51 are provided. As described above, the step stay 30 is provided with the unit support portion 38 behind the pair of mounting arm portions 32A and 32B, and the tank support portion 42 is disposed below the unit support portion 38, and the tank support portion 42 is provided. A pannier support portion 41 is disposed behind the muffler, and a muffler support portion 50 is disposed below the tank support portion 42. Thereby, each support part 38,42,41,50 keeps an appropriate space mutually.

  As shown in FIG. 4, the step stay 30 has a screw insertion hole 33 in a state where the screw insertion holes 33, 33 of the pair of mounting arm portions 32 </ b> A, 32 </ b> B are aligned with screw holes (not shown) of the rear frame 2. , 33 are screwed into screw holes 53 and 53 to be attached to the rear frame 2. The foot step 28 supported by the step support portion 29 stands up when in use and assumes a horizontal posture, and when not in use, the foot step 28 rotates along the side of the vehicle body to a storage posture. Is done.

  Next, a support structure for the unit support portion 38 of the operation unit 25 will be described with reference to FIGS. 5 and 6. First, in FIG. 5, the operation unit 25 is provided with an operation portion 55 including an operation knob rotatably at a rear portion which is one end portion of the unit main body portion 54, and the unit main body portion 54 is suspended from the rear wheel via the hydraulic hose 9. Connected to device 24 (FIG. 1). The operation unit 25 is configured to manually rotate the operation unit 55, thereby adjusting the characteristics of the rear wheel suspension device 24 according to the amount of the rotation operation. The rotation axis C of the operation unit 55 is substantially parallel to the lower edge of the rear frame 2 that is raised rearward, and a sufficient space is secured between the lower edge and the hand.

  In order to easily and accurately perform the rotation operation of the operation unit 55, a scale 56 (FIG. 4) indicating the rotation operation amount of the operation unit 55 is provided at a position visible from the outside of the vehicle body in the unit main body 54. It is attached. Further, the operation unit 25 is provided with an attachment base 58 at a location opposite to the operation part 55 in the unit main body 54, and the operation unit 25 supports the unit of the step stay 30 via the attachment base 58. Supported by the portion 38.

  As shown in FIG. 6, a fastening surface 59 and a mounting surface 60, which are flat surfaces parallel to each other, are formed on the front and back of the mounting base 58 of the operation unit 25. On the other hand, in the unit support portion 38 of the step stay 30, grommets 61 and 61 made of an elastic material such as rubber are fitted into the pair of mounting holes 40 and 40 while being elastically deformed. The collars 62 and 62 are housed in the hollow portion.

  The mounting surface 60 of the mounting base portion 58 of the operation unit 25 is applied to the unit support portion 38 in this state from the outside, and a pair of welding nuts 68 and 68 and a screw insertion hole 69 concentric with this are provided on the inside. The mounting plate 64 is applied, and the screw bodies 70 are inserted from the outside into the pair of screw insertion holes 63 of the mounting base 58, the hollow portion 62 a of the collar 62, and the screw insertion holes 69 of the mounting plate 64. , 68. Thereby, the operation unit 25 is firmly attached to the step stay 30. In this state, the grommet 61 acts as a vibration isolating member and suppresses vibration transmission from the step stay 30 to the operation unit 25.

  As shown in FIG. 5, a support receiving portion 71 having a substantially inverted U-shaped cross section having an opening 72 opened downward is projected forward from the front portion of the pannier 3. The part 41 is fitted into the hollow part from the opening 72 of the support receiving part 71 with the rubber vibration-proof cap 73 covered, and supports the front part of the pannier 3 from below.

  As shown in FIG. 1, a master cylinder 78 driven by the operation of a brake petal 75 is connected to a rear brake caliper 74 that applies braking to the rear wheel 15 via a brake hose 79, and a reservoir tank is connected to the master cylinder 78. 4 is connected via a reservoir hose 80. The reservoir tank 4 is supported by the tank support portion 42 of the step stay 30 with the following structure.

  First, in the reservoir tank 4, as shown in FIG. 3, the upper opening of the tank body 4a is covered with a screw-in and openable tank cap 4b. The reservoir tank 4 is provided with mounting brackets 81 and 87 on one side (front side) and the other side (rear side), and screw insertion holes 81a and 87a are formed in the mounting brackets 81 and 87, respectively. As can be seen from FIG. 1, the tank cap 4 b is exposed to the outside without being overlapped with the step stay 30 in the majority, except for a part of the lower portion of the rear end portion, about 90% in this embodiment. doing. Therefore, the operability when the tank cap 4b is rotated by hand is good.

  The screw body 82 is inserted from the outside shown in FIG. 4 into the screw insertion hole 81a of one mounting bracket 81 of the reservoir tank 4 of FIG. 3, and screwed into the screw hole 43 (FIG. 3) of the mounting piece 44 of the step stay 30. Combined. At this time, the restricting member 88 for preventing the tank cap 4 b of the reservoir tank 4 from dropping off is fastened together with the one mounting bracket 81 of the reservoir tank 4 to the mounting piece 44 by the screw body 82. Further, as shown in FIG. 5, the screw body 83 is inserted from the inside into the screw insertion hole 87 a (FIG. 3) of the other (rear) mounting bracket 87 of the reservoir tank 4, and the screw hole 48 ( 3). As a result, the reservoir tank 4 is fastened to the tank support portion 42 of the step stay 30.

  Next, a support structure for the muffler 20 to the step stay 30 will be described with reference to FIGS. 4 and 7. First, in FIG. 4, a support piece 89 made of a double plate is fixed to the upper portion of the muffler 20, and the support piece 89 is attached to the muffler support portion 50. Specifically, as shown in FIG. 7, a grommet 90 made of an elastic body such as rubber is fitted into the support hole 52 of the muffler support portion 50 while being elastically deformed, and is inserted into the hollow portion of the grommet 90. A bushing 91 having a flange portion 91a at both ends is provided.

  In the state described above, the screw insertion hole 92 provided in the support piece 89 is positioned with respect to the muffler support portion 50 so as to match the hollow portion 91b of the bushing 91 of the muffler support portion 50, and the cap 93 is placed outside the bushing 91. The screw body 98 is inserted into the screw insertion hole 94 of the cap 93, the hollow portion 91 b of the bushing 91, and the screw insertion hole 92 of the support piece 89, and tightened with the nut 99, whereby the upper portion of the muffler 21 is placed on the step stay 30. The muffler support 50 is firmly attached. In this state, the grommet 90 acts as a vibration isolating member, and suppresses vibration transmission from the step stay 30 to the muffler 20.

  In the above-described configuration, the step stay 30 shown in FIG. 2 is a position where the unit support portion 38 that supports the operation unit 25 protrudes rearward from the rear mounting arm portion 32B and is spaced above the tank support portion 42. The pannier support portion 41 is disposed on the rear side of the unit support portion 38. Thereby, as clearly shown in FIG. 1, the operation unit 55 of the operation unit 25 is located at a position where the polymerization with the step stay 30, the reservoir tank 4 and the pannier 3 is avoided as viewed from the outside, that is, the whole is outward. It is supported by the step stay 30 in an exposed arrangement. Therefore, since the operation part 55 can be easily picked and rotated from the outside, high operability of the operation unit 25 can be ensured.

  In addition to supporting the operation unit 25 and the pannier 3, the step stay 30 also serves as a support member for the reservoir tank 4 and the muffler 20, and thus is used effectively as a support member. Further, it is not necessary to separately provide a support member for the muffler 20. Furthermore, since both the pannier 3 and the muffler 20 are supported by the step stay 30, the mutual positional relationship can be secured, and the pannier 3 can be prevented from being too close to the high-temperature muffler 20.

  Further, as shown in FIG. 6, since the operation unit 25 is supported by the step stay 30 via the grommets 61 and 61 that are unit vibration isolation members, the vehicle body travel transmitted from the step stay 30 to the operation unit 25 is performed. Since the vibration at the time is attenuated, the unexpected rotation of the operation unit 55 of the operation unit 25 due to the vibration can be prevented. Further, as shown in FIG. 1, since the pannier 3 is supported by the step stay 30 via the anti-vibration cap 73 which is a pannier vibration-isolating member, the vibration during vehicle travel transmitted from the step stay 30 to the pannier 3 Is attenuated, the vibration applied to the article stored in the pannier 3 can be suppressed.

  The operation unit 25 has a rotational axis C set substantially parallel to the lower edge of the rear frame 2 of the vehicle body, and a reservoir tank below the unit support portion 38 for supporting the operation unit 25 shown in FIG. 4 is disposed, and a pannier support 41 for supporting the pannier 3 is disposed behind the tank support 42. As described above, since the operation unit 25 is inclined rearward and upward, a large space is generated at the rear and lower side thereof. Therefore, the tank support portion 42 for the reservoir tank 4 and the pannier for the pannier 3 are provided below the unit support portion 38. It becomes easy to dispose the support portion 41 far from the operation unit 25. As a result, the operation unit 55 of the operation unit 25 can be easily disposed at a position exposed to the outside, avoiding polymerization with the step stay 30, the reservoir tank 4, and the pannier 3 when viewed from the outside.

  Further, as clearly shown in FIG. 4, since the unit body 26 of the operation unit 25 is provided with a scale 56 indicating the operation amount of the operation unit 55, the operation unit 55 is manually operated while looking at the scale 56. Thus, the characteristics of the rear wheel suspension device 24 can be adjusted quickly and accurately, and the operability of the operation unit 25 is improved.

  Note that the present invention is not limited to the above-described embodiment, and various additions, modifications, or deletions are possible within the scope not departing from the gist of the present invention, and such modifications are also included in the scope of the present invention.

3 Pannier 4 Reservoir tank 20 Muffler 24 Rear wheel suspension device 25 Operation unit 28 Foot step 30 Step stay 38 Unit support part 41 Pannier support part 42 Tank support part 50 Muffler support part 55 Operation part 56 Scale 61 Grommet (unit anti-vibration member)
73 Anti-vibration cap (Pania anti-vibration member)
C Rotating shaft center FR Body frame

Claims (6)

A support structure for rear parts in a motorcycle,
A step stay attached to the body frame to support the passenger's foot step;
An operation unit that is attached to the unit support of the step stay and manually adjusts the characteristics of the rear wheel suspension;
A pannier support portion provided on the step stay and supporting a front portion of an article storage pannier mounted on a side of the vehicle body;
A tank support for supporting a reservoir tank for brake oil,
The pannier support is disposed behind the unit support,
The operation unit of the operation unit is disposed at a position avoiding polymerization with the step stay and the pannier when viewed from the outside.
Support structure for rear parts of motorcycle.   The support structure according to claim 1, wherein the step stay includes a muffler support portion that supports the muffler.   3. The support structure according to claim 1, wherein the operation unit is supported by the step stay via a unit vibration isolation member.   4. The support structure according to claim 1, wherein the pannier is supported by the step stay via a pannier vibration isolation member. 5.   5. The support structure according to claim 1, wherein the operation unit is configured such that a rotational axis of the operation unit is set substantially parallel to a lower edge of a rear frame of a rear frame of the vehicle body. A support structure for a rear part of a motorcycle in which the tank support portion is disposed below the rear portion and the pannier support portion is disposed behind the tank support portion.   6. The support structure according to claim 1, wherein a scale indicating the operation amount is attached to the operation unit. 7.

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