JPH01275283A - Motorcycle cowling supporting structure - Google Patents

Abstract

PURPOSE:To secure strength of joint part by locating the joint part of a front cowl with each side cowl outside the side face of a head-lamp, and coupling each outer side of the front cowl with a stay. CONSTITUTION:A cowling 62 consisting of a front cowl 63 having an irradiation opening and a left and a right side cowl 65 is mounted at the front face of a head-lamp 56 installed ahead a head pipe 3 of body frame through a stay 55. This stay 55 is composed of a main stay 73 and an aux. stay 74 protruding at the left and right sides, and a boss 119 is fixed to the outer end of this aux. stay 74 extending to outer side of the head-lamp 56. The joint of front cowl 63 with each side cowl 65 is located sideways outside the head-lamp 56, and the outer side of the front cowl 63 and the front end of the side cowl 65 are fixed to the boss 119 by a wing bolt 118 through damper rubber 120.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a support structure for a cowling in a motorcycle, which includes a front cowl and a pair of left and right side cowls connected to the outermost part of the front cowl in the vehicle width direction. .

(Prior art) For the cowling of a motorcycle, for example,
There is one shown in Japanese Patent No. 66184. According to this, a front cowl having a U-shape in plan view is provided to cover the front side of the vehicle body frame. Furthermore, a flat side cowl is provided to cover the side surface of the vehicle body frame. The front portion of this side cowl is connected to the front cowl by joining to an outer portion C of the front cowl in the vehicle width direction (hereinafter simply referred to as the outer portion).

(Problems to be Solved by the Invention) Incidentally, in the cowling having the above structure, the strength at the joint between the front cowl and the side cowl tends to be insufficient. Therefore, it is conceivable to connect the two using a large number of fasteners, but this would complicate the structure and may impede the appearance.

Furthermore, since the front cowl is directly hit by the wind while the vehicle is running, it must be sufficiently strong.

For this reason, the front cowl is formed into a substantially U-shape in plan view as described above, but with this configuration, for example, when transporting the cowling, it is difficult to separate the cowling from the front cowl. When disassembled into two side cowls and stacked on top of each other, they become bulky as a whole, which is disadvantageous in that transporting them becomes complicated.

(Objective of the Invention) The present invention has been made in view of the above-mentioned circumstances, and it is possible to ensure sufficient strength at the joint between the front cowl and the side cowl with a simple structure, and furthermore, it is possible to The purpose is to reduce the bulk of these three cowls when they are disassembled into a front cowl and two side cowls and stacked on top of each other.

(Structure of the Invention) The features of this invention to achieve the above object are that the joining portion of the front cowl and the side cowl is located on the outside of the headlamp, and each outside portion of the front cowl is connected to the stay. That's the point.

(for production) The effects of the above configuration are as follows.

When the outer portion of the front cowl 63 and the front portion of the side cowl 65 are connected to each other, the strength at the joint between the two tends to be insufficient if the two are simply connected.

By the way, the stay 55 for supporting the headlamp 56 supported by the vehicle body frame 2 has sufficient strength for its function. Therefore, in the present invention, the outer part of the front cowl 63 is connected to the stay 55, thereby ensuring sufficient strength at the joint between the outer part of the front cowl 63 and the front part of the side cowl 65. It will be done.

In this case, a portion of the stay 55 extends to the outside of the headlamp 56, and the joint portion is located outside the headlamp 56. Therefore, the stay 55 supporting the headlamp 56 and the outer part of the front cowl 63 are located close to each other, and therefore, connecting the outer part of the front cowl 63 to the stay 55 as described above is a simple structure. This can be done by

Further, since each outer side of the front cowl 63 is connected to the stay 55, both ends of the front cowl 63 are supported by the stay 55, that is, it is strongly supported. Therefore, even if the front cowl 63 has a somewhat flat shape, it can sufficiently withstand the wind when the vehicle is running.

Moreover, since the stay 55 supports the headlamp 56 provided close to the front cowl 63, the stay 55 and the front cowl 63 are also close to each other. Therefore, when each outer side of the front cowl 63 is connected to the stay 55 as described above, the front cowl 63 is flattened to some extent rather than the conventional U-shape in plan view. It's more convenient.

From the above, the shape of the front cowl 63 can be made reasonably flat. Therefore, the cowling 62,
When disassembled into the front cowl 63 and two side cowls 65 and stacked on top of each other, these three cowls can be made small in bulk.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

In FIGS. 2 and 3, ■ is a motorcycle, 2 is its body frame, and this body frame 2 has a semi-double cradle shape. That is, this body frame 2 has a head pipe 3 at its front part, a main frame 4 extends rearward and downward from the top of this head vibe 3, and a pair of left and right seats extend from the rear end of this main frame 4. A pillar tube 6 extends downward.

On the other hand, a down tube 7 is provided which extends rearward and downward from the lower part of the head pipe 3 and whose rear end is connected to the lower end of the seat pillar tube 6. This down duplex 7 includes a front tube 8 extending downward from the lower part of the head vibe 3, and a pair of left and right rear duplexes 9 that extend downward from the lower end of the front tube 8 and then are bent rearward. .9.

A front fork 11 is supported on the head vibrator 3 so as to be steerable. That is, this front fork 11 has a steering shaft inserted into the head vibrator 3, and this steering shaft is rotatable about the axis of the head vibrator 3. A front bracket 12 is installed at one end of the binder vibrator 3, and a lower bracket 13 is installed at the lower end. A pair of left and right fork pipes 14 and 14 are supported by the upper bracket 12 and the lower bracket 13.
．． A front wheel 15 is supported between the lower ends of the upper bracket 14, and a handle 16 is supported on the upper bracket 12 on the other side.

A pivot shaft 18 is provided at the bottom of the seat pillar tube 6.6.
The rear arm 19 is pivotally supported to be vertically swingable, and the rear wheel 20 is supported at the swinging end of the rear arm 19.

Further, a shock absorber 21 is interposed between the upper part of the seat pillar tube 6.6 and the rear arm 19 via a link mechanism 22. The shock absorber 21 buffers the impact that is transmitted from the road surface 23 to the vehicle body frame 2 through the rear wheels 20 and rear arm 19.

Further, at this time, the link mechanism 22 functions as follows.

That is, when the rear wheel 20 receives an impact from the road surface 23 while the motorcycle 1 is running and the rear arm 19 rotates in the -L direction, this link mechanism 22 is connected to the shock absorber 21 as the rear arm 19 rotates upward. The reduction amount of the damper is increased non-linearly, thereby improving the followability of the rear wheel 20 with respect to the road surface 23.

25 is a 1 cylinder 4 cycle engine, this engine 2
5 is located inside the vehicle body frame 2 and is fastened to the vehicle body frame 2. A carburetor 26 is attached to the intake hole of the engine 25, and an air cleaner 27 is provided to clean the outside air taken into the carburetor 26.

An exhaust pipe 29 is connected to the exhaust hole of the engine 25,
A muffler 33 is attached to the rear end.

A fuel tank 35 for supplying fuel to the carburetor 26 is provided. This fuel tank 35 is comprised of a pair of front tanks 36 and 36 provided to sandwich the main frame 4 from the left and right sides.
Both front tanks 36, 36 are screwed together by bolts 36a and supported by the main frame 4'' via a buffer (not shown). A fuel cock 37 is attached to the lower end of each front tank 36.

Further, the fuel tank 35 has a rear tank 38 at the rear of the vehicle body frame 2, and this rear tank 38 is screwed to a stay 6a protruding from the seat pillar tube 6. The rear tank 38 has an inverted U shape when viewed from the front, and fuel cocks 39 are attached to the left and right lower ends, respectively. Each of the fuel cocks 37 and 39 is connected to the carburetor 26.

The engine 25 is provided with a driving chain wheel 41, and on the other hand,
A driven chain wheel 42 is provided on the rear wheel 20, and both chain wheels 4
A transmission chain 43 is wound around 1.42. The engine 25 operates by sucking in outside air through an air cleaner 27 and a carburetor 26, and by sucking fuel from a fuel tank 35 through the carburetor 26.

If the power of the engine 25 is transmitted to the rear wheel 20 via the transmission chain 43 or the like, the motorcycle l can run.

The rear tank 38 supports a seat 44 on its upper surface. In other words, this rear tank 38 also serves as a support bracket for the seat 44.

Further, a seat 4 is provided on the rear outer surface of each front tank 36.
A concave knee grip 45 into which the knee of the rider above 4 fits is formed.

A rectangular highly rigid frame body 50 is provided on the front surface of the town tube 7. The upper part of this frame 50 is screwed to the front tube 8 by a pair of left and right bolts 51.51, and the lower part of the L frame 50 is screwed to the left and right rear tubes 9.9 by a pair of left and right bolts 52.52. It's stopped.

On the other hand, a stay 55 is provided in front of the head vibrator 3, and this stay 55 is connected to a pair of left and right headlamps 56.
56 is supported. Also, this headlamp 56.5
A lamp cover 57 is provided to protect the lamp 6. Furthermore, the above-mentioned stem -55 supports a traveling guide display meter 59 and a speedometer 60, which are instruments, on its upper surface side.

62 is a resin cowling. This cowling 62
is located on the front side of the headlamp 56.
5, and a front cowl 6 that covers the front of the vehicle body frame 2
3, and a windshield 64 is connected to the upper end of this front cowl 63. Further, a pair of left and right side cowls 65, 65 are provided which extend rearward from each outer side of the front cowl 63, and each of the side cowls 65, 65 is
1 Id cowl 65, headlamp 56.56, stay 55
, covers the front part of the vehicle body frame 2, the upper part of the front fork 11, and each side of the front part of each front tank 36.

A bulging portion 66 that bulges outward is formed at the upper portion of each of the Zyde cowls 65. This bulge 66 guides the wind so that it does not directly collide with the rider's arm holding the handlebar 16 (as indicated by the arrow in FIG. 2). Further, the rear end of each of the side cowls 65 is formed along the front edge of the knee grip 45, and the outer surface of the side cowl 65 and the knee grip 45 are connected by a smooth surface.

In FIGS. 4 and 5, the stay 55 includes a main stay 73 that is U-shaped in side view, and a pair of sub stays 74 and 74 protrude from the main stay 73 on each of the left and right sides. The stay 55 is attached to the head vibrator 3 by the support means 7.
Supported by 5.

The support means 75 has a pair of support vibrations 77, 77 screwed to the head vibration 3 by bolts 76, each support vibration 77 extending forward.

A slot 78 is formed on the front end side of each support vibe 77, and a fastening bolt 79 is provided at the part where this slot 78 is provided.
It is fastened. Further, the rear end of a vibe 80 is slidably inserted into each of the support vibes 77, and the front end of the vibe 80 is screwed onto the rear part of the main stay 73 by poles 1-81.

The axes of each of the bolts 76.81 extend in the vehicle width direction, and by loosening the bolts 76.81, the support vibrator 77 and the vibrator 80 can move up and down around the axes. There is.

Therefore, by rotating the support vibrator 77 and the vibrator 80,
Furthermore, by sliding the vibrator 80 against the support vibrator 77, the stay 55 can be arbitrarily adjusted in position forward and backward, up and down, and can also be adjusted in angle at will in a vertical plane passing through the center of the vehicle body. Then, the stay 55 can be fixed to the head vibrator 3 by tightening each bolt 76.degree. 81 and the fastening bolt 79 after adjusting to the desired position and angle.

Note that a buffer rubber 82 is interposed between the bolt 76 and the support vibe 77, and this buffer rubber 82
6 and the support vibrator 77 are absorbed.

The sub-stays 74, 74 have an oval shape elongated in the left-right direction when viewed from the front, and the headlamp 56 is fitted into each sub-stay 74. This headlamp 56 is fixed to the stay 55 by bolts 85.

On the other hand, bolts 90 and 90 are provided protruding forward from each end of the main stay 73. This bolt 90.
The lamp cover 57 is screwed onto 90. This lamp cover 57 has a cover frame 9 that is long from side to side when viewed from the front.
1, and this cover frame 91 is formed so as to frame the left and right headlamps 56, 56. The left and right center portions of this cover frame 91 are connected to the bolts 90.90.
It is fitted in and tightened with a wing nut 93. In addition, a lattice body 9 is provided on the front surface of the cover frame 91.
4 are welded, and this grid body 94 is attached to both headlamps 56.
56 (covers these). In the above case, a hole is formed in the protrusion of each wing nut 93, and each end of the spring 95 is hooked into this hole. ,
This spring 95 serves to prevent each wing nut 93 from loosening.

1. A bracket 97 projects upward from the stay 55, and the travel guide indicator 59 is secured to this bracket 97 with bolts 98. In this case, there is a buffer rubber 9 between the bracket 97 and the travel guide indicator 59.
9 is interposed, and this absorbs vibrations that try to be transmitted from the bracket 97 side to the traveling guide display meter 59. In addition,
This traveling guide display meter 59 is provided for, for example, a rally, and is designed to display the current position and destination.

Further, the speedometer 60 is fixed to the upper part of the stay 55 with bolts 100. In this case, a buffer rubber 101 is interposed between the stay 55 and the speedometer 60, and absorbs vibrations that try to be transmitted from the stay 55 side to the speedometer 60.

Reference numeral 106 denotes a sponge-like partition plate that partitions an upper and lower space approximately bordering the positions of the travel guide display meter 59 and the speedometer 60, and is screwed to the speedometer 60 by a port 107.

Next, referring to FIGS. 4 and 5, the cowling 62 and windshield 64 will be explained.

A pair of left and right circular holes 113 are provided in the front of the front cowl 63.
．． 113 are formed, each circular hole 113 corresponds to a headlamp 56, and the headlamp 56 illuminates the front of the vehicle body through the circular hole 113. Further, this front cowl 63 is provided close to the front side of the stay 55, and this front cowl 63 is provided close to the front side of the stay 55.
are jointly fastened to the main stay 73 by the aforementioned port 90 and wing nut 93.

”-, headlamp 56, driving guide indicator 59
Since each device such as the speedometer 60 and the front cowl 63 are supported by the support means 75, the positions of the devices mentioned above can be adjusted integrally by the support means 75.

The windshield 64 is attached at its lower end to the two wires of the front cowl 63 with bolts 114. In addition, the above bolt 11.4
One end of the front cowl 63 located above the front cowl 63 is bent backward away from the windshield 64, and the space between the upper end of the front cowl 63 and the windshield 64 is provided with a rally Zetsuken 115
is fitted. ], l 6 is a ventilation hole,
A pair of left and right portions are formed at the bottom of the windshield 64.

In particular, in FIGS. 1, 4, and 5, the front cowl 63 has a flat arc shape that is convex forward,
A front portion of a side cowl 65 having an overall flat shape is joined to the inner surface of each outer side portion of the front cowl 63. This joint portion is located on the outer side of the headlamp 56. Therefore, this joint portion is located close to the outer end of the sub-stay 74. And this joint is
They are jointly fastened to a boss portion 119 welded to the outer end of the sub-stay 74 with butterfly bolts 118 and 118 via a buffer rubber 120. In this way, the cowling 62 is supported by the stay 55.

In the above case, the sub stay 74.74 is connected to the headlamp 56.
The outer end of the sub-stay 74, 74 is therefore located closer to the joint. Therefore, it is extremely rational to screw the joint to the post section 119.

Since the stay 55 supports the headlamp 56 and other equipment mentioned above, it has sufficient strength together with the support means 75. Therefore, as described above, if the outer part of the front cowl 63 and the front part of the side cowl 65 are fastened together to the sub stay 74 of the stay 55, sufficient strength will be ensured at the joint between these two parts. Become. Furthermore, since the front cowl 63 is supported at both left and right ends of the sub-stay 74, the front cowl 63 is also sufficiently reinforced, so that it can sufficiently withstand the driving wind.

In the above embodiment, the front cowl 63 and the side cowl 65 are aligned with the boss part 119, but only the outer part of the front cowl 63 may be screwed to the boss part 119. However, sufficient strength is ensured at the joint.

Further, in the above embodiment, the outer end of the front cowl 63 is screwed to the boss portion 119, but a portion slightly inward in the vehicle width direction than this end is screwed to the boss portion 119.
9 may be screwed.

Further, in the above case, a stepped surface 122 facing inward in the vehicle width direction is formed at the front end of the side cowl 65, into which the outer end of the front cowl 63 fits. and,
As a result, the outer surfaces of the front cowl 63 and the side cowl 65 are smoothly continuous.

Above left and right butterfly bolts 1. ! 8.1. ] 8 are located on the same axis extending in the vehicle width direction, and the rear end side of each side collar 65 is vertically movable about the axis of each butterfly bolt IJ, 8. By this rotation, the rear end side of the side cowl 65 can be positioned at a desired position on the outer surface of the front tank 36.

Additionally, a bent surface 122a extending from the general surface of the outer surface of the side cowl 65 to the step surface 122, and a bent surface 122a of the front cowl 6
A gap 22b is formed over the entire joint portion between the outer edge of the joint portion 3 and the outer edge of the joint portion 3. And this gap 122
b prevents the bent surface 122a from coming into contact with the edge of the front cowl 63 when the side cowl 65 rotates around the butterfly bolt 118 as described above.

The joint portion between the outer side portion of the front cowl 63 and the front portion of the side cowl 65 is located on an imaginary plane that is substantially perpendicular to the vehicle width direction as a whole. For this reason, molding of each joint part can be performed relatively easily.

Note that if the joint is made into a planar shape as described above, the strength of this part becomes a problem, but this joint is connected to the stay 55 as described above and maintains sufficient strength. , the side cowl 65 in the vicinity of this joint
Since a bulge 66 is formed in the bulge 66, this bulge 66
The strength is further increased by

In FIGS. 1 and 6, a pair of upper and lower rubber bands 123, 123 are provided to fix the aligned side cowl 65 to the front tank 36 side. One end of each rubber band 123 is detachably engaged with a hook 124 provided on the inner surface of the side cowl 65, and the other end is elastically and detachably engaged with a hook 125 provided on the front tank 36. has been done.

Furthermore, elastic bodies 126 are interposed between the hooks 124 and the front tank 36 so that the hooks 124 do not come into contact with the outer surface of the front tank 36, and these are attached to the side cowl 65 side. . Further, two cushioning sponge materials 127, 127 are interposed between the side cowl 65 and the front tank 36 between the upper and lower rubber bands 123, 123.

The elastic bodies 126 and the sponge material 127 protect the side walls of the front tank 36 and absorb vibrations generated in the side cowl 65 and the front tank 36. Further, an appropriate space 128 is provided between the side cowl 65 and the front tank 36.
This space 128 allows air to flow smoothly between the two. Further, in this case, each sponge material 127 has a longitudinally long shape so as to guide the flow of the traveling wind toward the rear.

In FIG. 1, FIG. 7, and FIG. 8, in order to strengthen the connection between the front cowl 63 and each side cowl 65, the outer part of the front cowl 63 and each side cowl 65 are
A pair of upper and lower rubber bands 129, 12 connecting the front part of the
9 is provided.

Each rubber band 129 has one end attached to the front cowl 6.
It is removably locked to a hook 130 provided on the inner surface of 3,
The other end is elastically and detachably locked to a hook 131 provided on the inner surface of the side cowl 65. In the above case, the front part of the side cowl 65 is removably fitted into the gap between the outer part of the front cowl 63 and the portion 130a of each hook 130 and is locked therein.

In FIGS. 1, 3, and 6, in addition to the symbol -, a rubber band 133 is provided to elastically fix the front lower end of each side cowl 65 to the frame 50. One end of this rubber band 133 is removably engaged with a hook 134 provided at the lower front end of the side cowl 65, and the other end is attached to the frame 50.
It is elastically and removably locked to a hook 135 provided in the.

In FIG. 9, the lower front end of the side cowl 65 is a hook-shaped bent portion 136.
6 is detachably engaged with the front lower end of the front tank 36 via an elastic body 137. That is, when assembling the side cowl 65, first temporarily attach the side cowl 65 to the body frame 2 side with the butterfly bolts 118, and then rotate the side cowl 65 backward around the dovetail port 118. Now, if the bent portion 136 is engaged with the lower front end of the front tank 36, the approximate position of the side force lever 65 can be determined.

In addition, in the figure, 37 is the already mentioned fuel cock, and 138 is a fuel discharge pipe.

(Effects of the Invention) According to the present invention, focusing on the fact that the stay for supporting the headlamp has sufficient strength, the joint portion of the front cowl and the side cowl is positioned on the outside of the headlamp, and , each outer side of the front cowl is connected to the stay, and therefore sufficient strength can be ensured at the joint. Also, in this case, since the stay and the outer part of the front cowl are close to each other,
The outer part of the front cowl can be connected to this stay with a simple structure. Furthermore, since the headlamp stay is used in this way, the above-mentioned strength can be achieved with a simple configuration.

Furthermore, since the front cowl is supported at both ends by the stays, sufficient strength can be obtained even if the front cowl is made into a flat shape. Further, since the front cowl and the stay are close to each other, it is convenient to make the front cowl into a flat shape. Therefore, since the shape of the front cowl can be made reasonably flat, when the cowling is disassembled into the front cowl and two side cowls and these three parts are superimposed, the bulk of these three parts can be reduced. be able to. Therefore, the work when transporting the cowling becomes easier.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a side view of a cowling, Fig. 2 is an overall side view of the motorcycle, Fig. 3 is a front view, and Fig. 4 is a partially enlarged sectional view of Fig. 2. Fig. 5 is a sectional view taken along the line V-V in Fig. 1, and Fig. 6 is a cross-sectional view taken from Vl-V in Fig. 1.
7 is a sectional view taken along the line ■-■ in FIG. 1, FIG. 8 is a sectional view taken along the line ■-■ in FIG. FIG. 2 is a sectional view taken along the line lX-1 in FIG. 1; ]... Motorcycle, 2... Body frame, 55... Stay, 56... Headlamp, 62... Cowling, 63
・・Front cowl, 65・・Side cowl, 73・・
Main stay, 74...Sub-stay, 75...Support means.

Claims (1)

[Claims] 1. A stay for supporting the headlamp is provided in front of the vehicle body frame, and this stay is supported by the front part of the vehicle body frame, and a part of this stay is extended to the outside of the headlamp. A front cowl is provided that covers the front side of the vehicle body frame together with the stay, and a side cowl is provided that covers each side of the headlamp, the stay, and the vehicle body frame, and the front part of this side cowl is positioned outside of the front cowl in the vehicle width direction. A cowling support structure for a motorcycle in which a joint part of the front cowl and a side cowl is located outside a headlamp, and each outer part of the front cowl is connected to a stay.