JP5133541B2 - Saddle riding vehicle - Google Patents

Description

  The present invention relates to a straddle-type vehicle such as a motorcycle, a scooter, a snowmobile, and a buggy, and more particularly to a straddle-type vehicle that is reduced in weight.

  Conventionally, straddle-type vehicles such as motorcycles are provided with a muffler that suppresses engine exhaust noise. Further, the saddle riding type vehicle is generally provided with an exhaust pipe protector in order to prevent a driver or a pedestrian from touching an exhaust pipe including a muffler in a high temperature state. The exhaust pipe protector is disposed so as to cover the side and upper side of the exhaust pipe (mainly the muffler).

  The saddle riding type vehicle is provided with a rear fender so as to cover the rear frame. A grab bar is attached to the rear fender for the purpose of raising a fallen saddle riding type vehicle (see, for example, Patent Document 1). For example, the grab bar is attached to either the left or right side of the vehicle in an inverted U shape. In addition, the grab bar may be attached in a U shape along the rear end of the seat (that is, a U shape opened to the front of the vehicle).

The motorcycle described in Patent Document 1 includes a rear fender (tail cover) that covers a rear frame (seat rail) from above, and a grab bar attached to the rear fender. Further, the outer portion of the rear fender is extended so as to partition the grab bar adjacent to the rear frame and the muffler.
Japanese Patent No. 2770168

  By the way, the motorcycle described in Patent Document 1 improves the appearance by bringing the rear frame and the muffler close to each other and partitions the gap between the grab bar and the muffler with a rear fender, so that the heat of the muffler is in the hands of the person holding the grab bar. Is restrained from going. However, since the grab bar is mounted so as to protrude from the rear fender, the appearance of the motorcycle may be impaired.

  Further, since the grab bar is attached for the purpose of raising a fallen saddle riding type vehicle, it must be firmly fixed to the rear frame or the like. For this reason, the attachment of the grab bar increases the weight of the reinforcing portion on the rear frame side in addition to the weight of the grab bar, which leads to deterioration of the steering stability of the saddle riding type vehicle.

  An object of the present invention is to provide a straddle-type vehicle that is reduced in weight in view of the above-described conventional situation.

  In order to solve the above problems, a saddle riding type vehicle according to the present invention includes an engine, an exhaust pipe having a muffler and connected to the engine, an exhaust pipe protector covering a part of the side of the exhaust pipe, A straddle-type vehicle including a rear frame disposed above the exhaust pipe and extending rearward of the vehicle, wherein a gap is provided between the exhaust pipe protector and the rear frame.

Preferably, the exhaust pipe protector is arranged close to the rear frame.
Preferably, a rear fender that covers at least a part of the rear frame is further provided, and the gap is formed in at least one of the exhaust pipe protector and the rear fender.

Preferably, the gap is a recess formed in the exhaust pipe protector.
Preferably, further comprising a main frame connected to the rear frame and a seat supported by the rear frame, the rear frame being connected to the main frame and supporting the seat; A second rear frame that is connected to the main frame and supports the first rear frame, and the gap portion is below a coupling portion between the first rear frame and the second rear frame. It is set as the structure formed.

Preferably, the exhaust pipe is suspended from the rear frame via a support portion, and the gap is formed behind the support portion.
Preferably, the lower end of the rear frame and the lower end of the rear fender are positioned at substantially the same height above the gap.
Preferably, the exhaust pipe protector has an inclined portion that smoothly inclines toward the bottom wall of the recess.

According to the present invention, since the air gap is formed between the exhaust pipe protector and the rear frame, the weight of the saddle riding type vehicle can be reduced by reducing the weight by forming the air gap.
Further, the grab bar can be omitted by allowing the rear frame or the like to be gripped through the gap from the hand when the saddle riding type vehicle falls. Thereby, the weight of the grabber and its reinforcing part can also be omitted, and the straddle-type vehicle can be further reduced in weight.

Hereinafter, a straddle-type vehicle according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a right side view showing an internal configuration of a motorcycle according to an embodiment of the present invention. FIG. 2 is an enlarged view of part A in FIG.

  As shown in FIG. 1, a motorcycle 1 as a saddle-ride type vehicle includes a main frame 2, a head pipe 3 formed integrally with the front portion of the main frame 2, and a rear frame connected to the main frame 2. 4 is provided.

  The main frame 2, the head pipe 3, and the rear frame 4 constitute a vehicle body frame. A steering shaft (not shown) is rotatably fitted in the head pipe 3.

  Front fork support arms 5u and 5d are attached to the steering shaft so as to project from side to side. These front fork support arms 5u and 5d are rotatable with respect to the head pipe 3 together with the steering shaft.

  A handle 6 is fixedly attached to the upper front fork support arm 5u, and grips 7 are fitted and attached to both ends of the handle 6, respectively.

  Further, a pair of left and right inverted front forks 8 are fixedly supported on the upper and lower front fork support arms 5u and 5d. The front fork 8 holds the axle 10 of the front wheel 9.

  A fuel tank 11 is disposed on the main frame 2. A seat 12 is disposed behind the fuel tank 11.

  An engine 13 is attached below the main frame 2. An air cleaner 14 that purifies the air supplied to the engine 13 is disposed behind the main frame 2.

  The rear frame 4 includes a first rear frame 4a that supports the seat 12 and a second rear frame 4b that supports the first rear frame 4a. The first rear frame 4a and the second rear frame 4b are connected to the main frame 2 at attachment portions 4e and 4f formed at the front ends, respectively. A rear fender 15 made of resin, for example, is disposed above the rear frame 4 (mainly the first rear frame 4a in the present embodiment) so as to cover at least a part of the side of the rear frame 4. . In FIGS. 1 and 2, the rear frame 4 is all shown by a solid line in order to clearly show the arrangement of the rear frame 4, but there are actually portions that cannot be seen from the side by the rear fender 15 or the like.

  At the rear of the main frame 2, a rear arm 17 whose front part is supported by the pivot shaft 16 of the main frame 2 is disposed so that the rear part can swing. A rear wheel 18 is pivotally supported at the rear end of the rear arm 17.

  A rear suspension 19 is engaged with the main frame 2 via an attachment portion 20. The lower end of the rear suspension 19 is connected to one end of a link 21 connected to the rear arm 17 and the like.

  By the way, exhaust gas generated in the engine 13 is discharged from an exhaust pipe 22 connected to the engine 13 and having a muffler 23. The muffler 23 functions to suppress the exhaust noise accompanying the generation of exhaust gas. The muffler 23 (exhaust pipe 22) is suspended from the rear frame 4 (second rear frame 4b) via a bracket portion 23a as a “support portion” so as to extend obliquely upward toward the rear of the motorcycle 1. Has been. As a result, the muffler 23 is close to the rear frame 4 and the rear fender 15.

  As shown in FIG. 2 (enlarged view of part A in FIG. 1), the exhaust pipe protector 24 in which the muffler 23 of the exhaust pipe 22 is formed with a concave portion 24a as a gap to cover a part of the side thereof. Is installed. In this embodiment, the exhaust pipe protector 24 is attached to the muffler 23 by four attachment portions 24b, 24c, 24d, and 24e shown in FIG. 3 (a perspective view showing the exhaust pipe protector 24).

  As will be described in detail later, the recess 24a of the exhaust pipe protector 24 is formed so that a human hand can be inserted between the rear frame 4 (rear fender 15). Further, the recess 24a is formed to be positioned below the coupling portion 4c that couples the first rear frame 4a and the second rear frame 4b. And the recessed part 24a is formed in the back of the bulging part 24f which exhibits the shape which rose so that the bracket part 23a of the muffler 23 might be covered.

  As shown in FIG. 3, the exhaust pipe protector 24 has inclined portions 24g, 24h, and 24i that are smoothly inclined from the front, rear, and sides to the bottom wall 24l of the recess 24a. In addition, ventilation openings 24j and 24k are formed in the lower part of the exhaust pipe protector 24 in order to take in the traveling wind and escape the hot air from the muffler 23 and to reduce the weight.

4 is a cross-sectional view taken along the line IV-IV in FIGS. 1 and 2.
As shown in the figure, above the recess 24a, the lower end 4d of the first rear frame 4a (rear frame 4) and the lower end 15a of the rear fender 15 that engages with the side portion of the seat 12 have substantially the same height. positioned.

  Note that the muffler 23 (exhaust pipe 22) is provided by a bracket portion (support portion) 23b provided on the first rear frame 4a side in addition to the bracket portions 23a, 23a connected to the muffler 23 by welding or the like. Suspended by the first rear frame 4a. These bracket portions 23a, 23a, and 23b are fixed to each other by bolts 23d and nuts 23e.

  Here, even if the exhaust pipe protector 24 and the rear frame 4a or the rear fender 15 are located close to each other, as shown in the figure, by inserting a human hand 25 from the recess 24a of the exhaust pipe protector 24, The first rear frame 4a (rear frame 4) can be gripped.

According to the present embodiment described above, since the concave portion 24a as the gap portion is formed in the muffler 24, the weight of the muffler 24 is reduced by forming the concave portion 24a, thereby reducing the weight of the motorcycle 1. Can do.
Further, since the rear frame 4 and the like can be gripped from the recess 24a through the hand 25 when the motorcycle 1 falls, the grab bar can be omitted. Thereby, the weight of the grabber and the reinforcing portion thereof can be omitted, and the motorcycle 1 can be further reduced in weight.

  Further, since the exhaust pipe protector 24 and the rear frame 4 are arranged close to each other, the center of gravity of the motorcycle 1 can be concentrated and the appearance can be improved (simple).

  Further, by forming the recess 24a as the gap in the exhaust pipe protector 24, the exhaust pipe protector 24 can be brought closer to the rear frame 4 or the rear fender 15, and the recess 24a can be easily formed. it can.

  Further, since the recess 24a is formed so as to be positioned below the joint 4c between the first rear frame 4a and the second rear frame 4b, the human hand 25 is inserted by the space generated below the joint 4a. Can be easier. Therefore, the exhaust pipe protector 24 can be brought closer to the rear frame 4 or the rear fender 15.

  Further, since the recess 24a is formed so as to be located behind the bracket portions 23a, 23b, and 23c of the muffler 23, the rear frame 4 can be easily gripped at the rear portion of the motorcycle 1.

  Further, since the lower end 4d of the rear frame 4 and the lower end 15a of the rear fender 15 are located at substantially the same height above the recess 24a, the appearance can be further improved by covering the side of the rear frame 4 with the rear fender 15. In addition, the human hand 25 can be easily inserted into the rear frame 4 from the recess 24a.

  Further, since the exhaust pipe protector 24 is formed with the inclined portions 24g, 24h, and 24i that smoothly incline toward the bottom wall 24l of the concave portion 24a, the inclined portions 24g, 24h, and 24i insert the human hand 25 into the concave portion 24a. Since it guides and serves as a mark when doing, it can make it easy to insert a human hand 25 into the rear frame 4.

  In the present embodiment, the gap portion according to the present invention has been described as the concave portion 24a formed in the exhaust pipe protector 24. It is possible to insert a human hand 25 between the tube protector 24 and the rear frame 4 (rear fender 15). Furthermore, it can be set as the space | gap part which concerns on this invention also by forming the hole part which can insert a human hand in the exhaust pipe protector 24 or the rear fender 15. FIG.

  In the present embodiment, since the recess 24a is formed, the exhaust pipe protector 24 and the rear frame 4 or the rear fender 15 are brought close enough that the rear frame 4 cannot be gripped at the position excluding the recess 24a. Is possible. However, even when the exhaust pipe protector 24 and the rear frame 4 or the rear fender 15 are close enough to insert the hand 25 even at a position excluding the recess 24a, the recess 24a facilitates insertion of the hand 25. The formation of the recess 24a is effective.

  Further, in the present embodiment, the lower end 4d of the rear frame 4 and the lower end 15a of the front fender 15 are positioned at substantially the same height above the recess 24a, but are not at substantially the same height above all of the recess 24a. However, it is possible to facilitate the insertion of the human hand 25.

1 is a right side view showing an internal configuration of a motorcycle according to an embodiment of the present invention. It is the A section enlarged view of FIG. It is a perspective view which shows the exhaust pipe protector of the said motorcycle. It is IV-IV sectional drawing of FIG.1 and FIG.2.

Explanation of symbols

1 Motorcycle (saddle-ride type vehicle)
2 main frame 3 head pipe 4 rear frame 4a first rear frame 4b second rear frame 4c coupling portion 4d lower end 4e, 4f mounting portion 5u upper front fork support arm 5d lower front fork support arm 6 handle 7 grip 8 front Fork 9 Front wheel 10 Axle 11 Fuel tank 12 Seat 13 Engine 14 Air cleaner 15 Rear fender 15a Lower end 16 Pivot shaft 17 Rear arm 18 Rear wheel 19 Rear suspension 20 Mounting part 21 Link 22 Exhaust pipe 23 Muffler 23a, 23b Bracket part (support part)
23d bolt 23e nut 24 exhaust pipe protector 24a recess (gap)
24b, 24c, 24d, 24e Attachment part 24f Swelling part 24g, 24h, 24i Inclined part 24j, 24k Ventilation hole 24l Bottom wall 25 Hand

Claims (5)

Engine,
An exhaust pipe having a muffler and connected to the engine;
An exhaust pipe protector covering a part of the side of the exhaust pipe;
A straddle-type vehicle including a rear frame disposed above the exhaust pipe and extending rearward of the vehicle,
The exhaust pipe protector is located between the rear frame and the exhaust pipe,
A straddle-type vehicle provided with a recess formed in the exhaust pipe protector and into which a human hand can be inserted between the exhaust pipe protector and the rear frame. A main frame connected to the rear frame;
A seat supported by the rear frame;
The rear frame includes a first rear frame connected to the main frame and supporting the seat; and a second rear frame connected to the main frame and supporting the first rear frame;
2. The straddle-type vehicle according to claim 1, wherein the recess is formed below a connecting portion between the first rear frame and the second rear frame. The exhaust pipe is suspended from the rear frame via a support portion,
The straddle-type vehicle according to claim 1, wherein the concave portion is formed behind the support portion. A rear fender covering at least a part of the side of the rear frame;
Above the recesses straddle-type vehicle according to claim 1, wherein the the lower ends of said rear fender of the rear frame is positioned substantially at the same height. The exhaust pipe protector straddle-type vehicle according to claim 1, characterized in that it comprises an inclined portion smoothly inclined toward the bottom wall of the recess.