JP4394774B2 - Motorcycle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a motorcycle in which a front cowl disposed in front of the head pipe is supported on a head pipe that supports a front wheel so that the front wheel can be steered, and a mirror for rearward confirmation is attached to the front cowl. And improvement of the support structure of the mirror.
[0002]
[Prior art]
Conventionally, such a motorcycle is already known, for example, in Japanese Patent No. 2587815.
[0003]
[Problems to be solved by the invention]
In the above conventional one, a front cowl is attached to a stay fixed to the head pipe, and a mirror is attached to the front cowl, but a relatively large vibration of the head pipe is transmitted to the front cowl and the mirror, There is a possibility of hindering the backward confirmation by the mirror.
[0004]
The present invention has been made in view of such circumstances, and an object thereof is to provide a motorcycle capable of suppressing vibrations of a front cowl and a mirror.
[0005]
[Means for Solving the Problems]
To achieve the above object, the present invention is a head pipe for supporting a front wheel steerably, the front cowl which is disposed in front of the head pipe, mirror and the first backward confirmation, the second stay the motorcycle mounted through the first stay has a first pipe extends in the vehicle longitudinal direction, a first bracket to be fastened by welding to the rear of the first pipe to the head pipe, the upper surface A support plate that is formed on a flat surface and extends in the left-right direction and is fixed to the first pipe, and the second stay has a flat portion on the flat upper surface of the support plate at an intermediate portion thereof. A second pipe extending outwardly from the left and right sides of the plate, a second bracket fixed to both ends of the second pipe and attached to the front cowl and the mirror, and the flat portion A first elastic member provided between the first pipe and the mounting plate, the support plate, and the flat portion. the second stay can Ru attached to the first stay via a second elastic member provided between the first feature, also in addition to the first feature, the rear than the support plate The second feature is that a headlight disposed behind the front cowl is supported by another support plate fixed to the first pipe, and in addition to the first feature, the support plate The third feature is that the instruments are supported by another support plate fixed to the first pipe in front of the first pipe .
[0006]
According to such a configuration, the front cowl and the mirror include the first elastic member provided between the first pipe of the first stay and the mounting plate of the second stay, the support plate of the first stay, and the second stay of the second stay. It is supported by the head pipe via the first and second stays that are interposed between the second elastic member provided between the two pipe flat portions, and the vibration of the head pipe is absorbed by the elastic member. Therefore, vibration of the front cowl and the mirror can be suppressed.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below based on one embodiment of the present invention shown in the accompanying drawings.
[0008]
1 to 7 show an embodiment of the present invention. FIG. 1 is a side view of a motorcycle, FIG. 2 is an enlarged view taken along arrow 2 of FIG. 1, and FIG. 2 is a view of the second stay as viewed from the same direction as FIG. 2, FIG. 4 is a view taken along arrow 4 in FIG. 3, FIG. 5 is an enlarged sectional view taken along line 5-5 in FIG. FIGS. 7 and 7 are cross-sectional views showing how the mirror is attached to the front cowl.
[0009]
First, in FIG. 1, a body frame F of the motorcycle is composed of a front frame 11 on which an engine E is mounted and a rear frame 12 coupled to a rear end portion of the front frame 11. A front fork 18 that pivotally supports the front wheel WF is supported on the head pipe 13 provided at the front end of the front frame 11 so as to be steerable, and a bar handle 19 is connected to the upper end of the front fork 18.
[0010]
The front frame 11 supports a multi-cylinder engine E in which a plurality of cylinders, for example, four cylinders are arranged in parallel in the width direction of the body frame F. An arm support member 21 is supported at the rear portion of the crankcase 20 in the engine E, and the front end portion of the rear swing arm 22 that pivotally supports the rear wheel WR is rocked to the arm support member 21 via the support shaft 23. It is supported movably. A link mechanism 24 is provided between the arm support member 21 and the rear swing arm 22, and a rear cushion unit 25 is provided between the link mechanism 24 and the rear portion of the front frame 11.
[0011]
The power from the output shaft 26 of the transmission built in the engine E is transmitted to the rear wheel WR via the chain transmission means 27, and the chain transmission means 27 is fixed to the output shaft 26. Driving sprocket 28, driven sprocket 29 fixed to the rear wheel WR, and endless chain 30 wound around these sprockets 28, 29, with the engine facing forward in the traveling direction of the motorcycle. It is arranged on the left side of E.
[0012]
A fuel tank 31 supported by the front portions of the front frame 11 and the rear frame 12 is disposed above the engine E. An air cleaner 32 is disposed between the fuel tank 31 and the engine E, and a radiator 33 is disposed in front of the engine E. Is placed.
[0013]
A plurality of, for example, four exhaust pipes 35, 35... Connected to the cylinder head 34 of the engine E are extended from the front side of the engine E to the right side of the rear wheel WR through the lower side of the engine E. It is connected to an exhaust muffler 36 disposed on the right side of the WR.
[0014]
The rear frame 12 includes a pair of left and right rear stays 37 that extend rearwardly from the rear end of the front frame 11 and a rear stay 37 that extends rearwardly from the rear end of the front frame 11 above the rear stays 37. A pair of left and right seat rails 38 coupled to the rear end, and a main seat 39 for seating a rider is supported on the seat rails 38 behind the fuel tank 31 and a pillion seat for carrying a passenger 40 is supported by the seat rails 38 at a position away from the main seat 39 rearward.
[0015]
The front of the head pipe 13 in the front frame 11 is covered with a front cowl 42 made of synthetic resin, and both sides of the front part of the vehicle body are covered with a center cowl 43 made of synthetic resin connected to the front cowl 42, and an exhaust pipe 35. , 35..., 35... A synthetic resin lower cowl 44 that covers a portion disposed below the engine E from both sides is connected to the center cowl 43. On the left and right sides of the upper portion of the front cowl 42, rear-viewing mirrors 45 are attached.
[0016]
A rear fender 46 that covers the upper part of the rear wheel WR is attached to the rear frame 12, and a front fender 47 that covers the upper part of the front wheel WF is attached to the front fork 18. Most of the rear frame 12 and the rear fender 46 are covered with a rear cowl 48.
[0017]
In FIG. 2, a first stay 52 is fixed to the head pipe 13, and a front cowl 42 and a pair of mirrors 45, 45 are attached to a second stay 53 that is elastically supported by the first stay 52.
[0018]
3 and 4 together, the first stay 52 includes a first pipe 54 that extends slightly forward and extends in the front-rear direction of the motorcycle, and a bracket that is welded to the rear end of the first pipe 54. 55, a first support plate 56 welded to the middle portion in the longitudinal direction of the first pipe 54, a second support plate 57 welded to the front end of the first pipe 54, and the first and second support plates 56, 57. A third support plate 58 is provided at an intermediate portion therebetween.
[0019]
The bracket 55 is formed in a triangular shape and welded to the lower portion of the rear end of the first pipe 54, and includes a pair of upper and lower bolts 60, 60, and nuts 61 that are screwed to the bolts 60, 60. A bracket 55 is fastened to the head pipe 13.
[0020]
A headlight (not shown) disposed behind the front cowl 42 is supported on the first support plate 56. An instrument (not shown) is attached to the second support plate 57, and a nut 62 is welded to the upper portion of the second support plate 57.
[0021]
The third support plate 58 has a substantially U-shaped cross-sectional shape with the upper surface being a flat surface and opened downward, and is welded to the upper surface of the first pipe 54 so as to extend from the first pipe 54 to the left and right sides. Is done.
[0022]
The second stay 53 includes a second pipe 63 that extends from the first stay 52 to the left and right sides and has both ends bent upward, brackets 64 and 64 welded to both ends of the second pipe 63, and a second And a mounting plate 65 welded to the central portion of the pipe 63.
[0023]
An intermediate portion of the second pipe 63 is formed with a flat portion 63 a that is compressed up and down, and the flat portion 63 a is placed on the third support plate 58 in the first stay 52. The mounting plate 65 is welded to the central rear portion of the flat portion 63 a and extends to the first pipe 54 side of the first stay 52.
[0024]
Referring to FIG. 5 as well, insertion holes 66 are formed at both ends of the third support plate 58 of the first stay 52, and nuts 67 corresponding to the insertion holes 66 are provided in the first stay 52. 3 It is welded to the lower surface of the support plate 58. On the other hand, a cylindrical elastic member 68 is elastically fitted to the flat portion 63a of the second pipe 63 of the second stay 53 so as to correspond to the insertion holes 66, and the elastic member 68 and so on. Bolts 69 inserted through the insertion holes 66 are screwed into the nuts 67 so as to sandwich the elastic members 68 between the third support plates 58.
[0025]
Referring also to FIG. 6, the first pipe 54 in the first stay 52 is substantially perpendicular to the axis of the first pipe 54 at a position corresponding to the rear end portion of the mounting plate 65 in the second stay 53. A through hole 70 extending in the vertical direction is formed, and a nut 71 corresponding to the through hole 70 is welded to the lower surface of the first pipe 54. A cylindrical collar 72 is inserted into the through hole 70 so as to receive the lower end with a nut 71, and the upper end of the collar 72 slightly protrudes from the upper surface of the first pipe 54.
[0026]
On the other hand, a cylindrical elastic member 73 is elastically fitted to the mounting plate 65 of the second stay 53 corresponding to the collar 72, and a bolt 74 inserted through the elastic member 73 and the collar 72 is provided. The elastic member 73 is screwed into the nut 71 so as to be sandwiched between the upper end of the collar 72.
[0027]
In this manner, the second stay 53 is attached to the three places of the first stay 52 fixed to the head pipe 13 via the pair of elastic members 68... And the single elastic member 73.
[0028]
A pair of cylindrical collars 75, 75... Are fixed to the brackets 64, 64 at both ends of the second stay 53. These collars 75, 75. And protrude from the brackets 64 and 64.
[0029]
7, the front cowl 42 is sandwiched between the brackets 64, 64 and the base portions 45a of the mirrors 45, 45 so that the collars 75, 75,... .. Are screwed into the collars 75, 75... So that the front cowl 42 and both mirrors 45, 45 are attached to the brackets 64, 64, that is, the second stay 53.
[0030]
Next, the operation of this embodiment will be described. The first stay 52 is fixed to the head pipe 13 that supports the front wheel WF so as to be steerable, and the second stay is connected to the first stay 52 via the elastic members 68. 53 is attached, and the front cowl 42 and the mirrors 45, 45 are attached to the second stay 53.
[0031]
Accordingly, the front cowl 42 and the mirrors 45, 45 are supported by the head pipe 13 via the first and second stays 52, 53 with the elastic members 68, 73 interposed therebetween. Is absorbed by the elastic members 68..., 73, so that the vibration of the front cowl 42 and the mirrors 45, 45 can be suppressed.
[0032]
Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the present invention described in the claims. Is possible.
[0033]
【The invention's effect】
As described above, according to the present invention, the front cowl and the mirror include the first elastic member provided between the first pipe of the first stay and the mounting plate of the second stay, the support plate of the first stay, and the second stay. Since the second pipe is supported by the head pipe via the first and second stays interposed between the second elastic members provided between the flat portions of the second pipe , the elastic members absorb the vibration of the head pipe. Thus, vibrations of the front cowl and the mirror can be suppressed.
[Brief description of the drawings]
FIG. 1 is a side view of a motorcycle.
FIG. 2 is an enlarged view taken along arrow 2 in FIG.
3 is a view of the first and second stays connected to each other as seen from the same direction as FIG. 2;
4 is a view taken in the direction of arrow 4 in FIG.
5 is an enlarged cross-sectional view taken along line 5-5 of FIG.
6 is an enlarged cross-sectional view taken along line 6-6 of FIG.
FIG. 7 is a cross-sectional view showing a state where the mirror is attached to the front cowl.
[Explanation of symbols]
13 ... head pipe 42 ... front cowl 45 ... mirror 52 ... first stay 53 ... second stay
54 ... 1st pipe
55 ... 1st bracket
56 ... Another support plate
57. Another support plate
58 ... support plate
63a ... Flat part
63 ... second pipe
64 ... second bracket
65 ... Mounting plate 68 ... Second elastic member
73: First elastic member WF: Front wheel

Claims (3)

A head pipe (13) that supports the front wheel (WF) so as to be steerable has a front cowl (42) disposed in front of the head pipe (13) and a mirror (45) for confirming the rear side . In the motorcycle mounted via the second stays (52, 53) , the first stay (52) is welded to a first pipe (54) extending in the longitudinal direction of the vehicle body and a rear portion of the first pipe (54). A first bracket (55) that is fastened to the head pipe (13), and a support plate (58) that has a flat upper surface that extends in the left-right direction and is fixed to the first pipe (54). And
The second stay (53) has a flat portion (63a) that is placed on the flat upper surface of the support plate (58) in an intermediate portion and extends outward from the left and right sides of the support plate (58). A pipe (63), a second bracket (64) to which the front cowl (42) and the mirror (45) are attached respectively fixed to both ends of the second pipe (63), and the flat portion (63a) And a mounting plate (65) welded to the center of the rear portion and extending at the front end to the first pipe (54) side,
A first elastic member (73) provided between the first pipe (54) and the mounting plate (65), and a second elastic member provided between the support plate (58) and the flat portion (63a). (68) and a motorcycle, wherein the second stay (53) that Ru attached to the first stay (52) through. A headlight disposed behind the front cowl (42) is supported by another support plate (56) fixed to the first pipe (54) behind the support plate (58). The motorcycle according to claim 1. The motorcycle according to claim 1, wherein the instrument is supported by another support plate (57) fixed to the first pipe (54) in front of the support plate (58).

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