JP2964599B2 - Fairing mount structure of motorcycle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial application field) The present invention relates to a fairing mount structure that covers a front of a motorcycle.

(Prior Art) In some motorcycles, the front of the vehicle is covered with a fairing to reduce air resistance. Such a fairing is supported on a head pipe of a vehicle body frame using a cowling brace, and a mirror for rearward confirmation is floatingly supported on the fairing.

However, in such a fairing mount device, a large vibration of the upper portion of the head pipe is transmitted to the fairing via the cowling brace, and as a result, the vibration of the mirror may be increased.

On the other hand, there is a mirror in which a mirror for confirming the rear is floatingly supported by a mirror mounting stay fixed to a head pipe.
However, in this case, since the mirror mounting stay is installed outside the cowling brace supporting the fairing, there is a disadvantage that the cost increases.

(Problems to be Solved by the Invention) As described above, in the conventional fairing mount device and the mirror mounting device, there is a possibility that the vibration of the rear confirmation mirror increases and the cost increases.

The present invention has been made in consideration of the above circumstances, and has as its object to provide a fairing mount device for a motorcycle that can reduce vibration of a mirror installed on a fairing at low cost.

[Configuration of the invention]

(Means for Solving the Problems) In order to solve the above-described problems, a fairing mount structure for a motorcycle according to the present invention includes a mirror installed on a fairing covering the front of the vehicle, and the fairing includes a cowling brace. In a fairing mount structure for a motorcycle supported on a head pipe of a body frame via a connecting pipe, a connecting piece is fixed to an upper bracket and a lower bracket fixed to an upper part and a lower part of the head pipe, respectively, while the cowling brace is fixed. Is floating supported on the upper part of the connecting piece and fixedly supported on the lower part of the connecting piece.

(Operation) Generally, the vibration of the head pipe is large at the upper part and small at the lower part. Therefore, according to the fairing mount structure of the motorcycle according to the present invention, since the cowling brace supporting the fairing is floatingly supported on the upper portion of the head pipe, vibration transmitted from the upper portion of the head pipe to the cowling brace can be reduced. At the same time, the cowling brace was fixed and supported at the bottom of the head pipe,
The mounting strength of the cowling brace can be improved. From these, the rigidity and vibration isolation of the fairing can be secured,
The vibration of the mirror installed on this fairing can be reduced.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a partial sectional view of a motorcycle showing one embodiment of a fairing mount structure for a motorcycle according to the present invention, in which a part is shown in a sectional view and a front fork is omitted. FIG. 2 is an overall side view of a motorcycle to which the embodiment of FIG. 1 is applied.

As shown in FIG. 2, the motorcycle has a front wheel 1 and a rear wheel 2 disposed at the front and rear of the vehicle, and the front wheel 1 is pivotally supported at a lower end of a front fork 3. The front wheel 1 is steered by being rotatably supported by the pipe 5. Reference numeral 6 denotes a handle fixed to the upper end of the front fork 3.

The rear wheel 2 is swingably supported in the vertical direction of the vehicle via a swing arm 7 and is suspended by a rear cushion unit (not shown). The rear wheels 2 are driven by an engine (not shown) mounted on the body frame 4. A fuel tank 8 is arranged above the engine, and a seat 9 is arranged behind the fuel tank 8.

A fairing 10 is arranged in a front area of the vehicle from the front fork 3 to the engine 4. The fairing 10 includes an upper cowl 11, a center cowl 12 and a lower cowl 13. The upper cowl 11 is supported by the head pipe 5 of the body frame 4 by the cowling brace 14.

Next, the mounting structure of the upper cowl 11 to the head pipe 5 will be described.

First, as shown in FIGS. 6 to 8, a cowling brace 14 includes a pair of left and right brace tubes 15 curved in a substantially U shape toward the front of the vehicle, and these brace tubes.
15 and a brace lower bridge 18 bridged between a pair of left and right brace tubes 15 via a lower bridge reinforcement 17.

A brace upper tube 19A and a brace lower tube 19B are fixed to the center position of the brace upper bridge 16 and the brace lower bridge 18 in the vehicle left-right direction, and a brace upper holder 20 and a brace lower holder 21 are fixed to their respective distal ends. You. These brace upper holder 20 and brace lower holder 21
Is formed in a U-shaped cross section.

A mirror mounting bracket 22 is installed at the upper end of a pair of left and right brace tubes 15. A brace tube reinforcement 23 is fixed near a joint between each brace tube 15 and the brace upper bridge 16. further,
Brace upper bridge 16 and brace lower bridge
18 includes a headlamp upper bracket 24 and a headlamp lower bracket (not shown) for mounting a headlamp.
25 are respectively fixed. The cowling brace 14 is configured as described above.

As shown in FIG. 1, an upper bracket 26 and a lower bracket 27 are fixed to the head pipe 5 at the upper center and lower center in the axial direction, respectively. A connecting piece 28 is fixed to these upper and lower brackets 26 and 27 by bolts 29 and the like (FIG. 3).

An upper hole 30 and a lower hole 31 are formed in the connecting piece 28 on the fairing 10 side. Upper hole 30
On the other hand, as shown in FIG.
A spacer 33 is interposed inside the elastic bush 32.
In this state, the connecting piece 28 is fitted to the brace upper holder 20 and the brace lower holder 21 of the cowling brace 14. Then, by inserting a bolt 34 into the lower hole 31 of the brace lower holder 21 and the connecting piece 28 and tightening it with the nut 35, the cowling brace 14 is fixedly supported at the lower part of the head pipe 5 via the connecting piece 28.

Also, by inserting the bolt 36 into the brace upper porder 20 and the spacer 33 and tightening it with the nut 37,
The cowling brace 14 is floatingly supported on the upper part of the head pipe 5 by using an elastic bush 32. Above elastic bush
Reference numeral 32 denotes a cylindrical shape as shown in FIG. 5, and flanges 38 for retaining are protrudingly formed at both outer ends.

As shown in FIG. 1, the upper cowl is attached to the cowling brace 14 supported by the head pipe 5 as described above.
11 is installed. Then, a rear view mirror 39 is fixed to the mirror mounting bracket 22 of the cowling brace 14 from outside the upper cowl 11 by a bolt (not shown) or the like.

Generally, the vibration of the head pipe 5 of the body frame 4 is
The upper part of the head pipe 5 distant from the engine mounting part on the body frame 4 is closer to the engine mounting part.
Larger than the bottom. Therefore, according to the above embodiment, since the brace upper tube 19A of the cowling brace 14 is floatingly supported at the upper center of the head pipe 5 by the elastic bush 32, the vibration from the upper center of the head pipe 5 is reduced by the elastic bush 32. Can be attenuated. As a result, the vibration of the mirror 39 mounted on the mirror mounting bracket 22 of the cowling brace 14 can be reduced.

Further, when a headlamp (not shown) is installed on the headlamp upper bracket 24 and the headlamp lower bracket 25 of the cowling brace 14, since the vibration of the cowling brace 14 is reduced by the elastic bush 32, The cutting frequency can also be reduced.

Also, the brace lower tube 19 of the cowling brace 14
Since B is fixedly supported at the lower part of the head pipe 5,
The mounting strength of the cowling brace 14 is improved, and as a result, the rigidity of the fairing 10 can be improved.

Further, the mirror 39 is provided with a mirror mounting bracket 22 formed on the upper stage of the brace tube 15 of the cowling brace 14.
Since the mirror stay is not mounted on the head pipe 5, the cost can be reduced.

〔The invention's effect〕

As described above, according to the fairing mount structure of the motorcycle according to the present invention, the connecting piece is fixed to the upper bracket and the lower bracket fixed to the upper and lower portions of the head pipe, respectively, while the cowling brace is connected to the connecting piece. The floating piece is floatingly supported on the upper part and fixedly supported on the lower part of the connecting piece, so a connecting piece with an elastic bush inserted is provided separately, and the cowling brace is attached to the upper and lower brackets of the head pipe via this connecting piece. Therefore, the cowling brace does not have to be directly attached to the large frames on the vehicle body frame side, so that the processing accuracy is improved, while the attachment is easy, and the attachment workability and assemblability can be improved.

Further, since the cowling brace is floatingly supported on the upper part of the connecting piece and fixed to the lower part, the upper vibration of the cowling brace can be reduced, and the vibration of the mirror can be reduced.

[Brief description of the drawings]

FIG. 1 is a partial side view of a motorcycle showing one embodiment of a fairing mount structure for a motorcycle according to the present invention, in which a part of the fairing mount structure is shown in cross-section and a front fork is omitted. FIG. FIG. 3 is an assembled perspective view showing a mounted state of the cowling brace of FIG. 1, FIG. 4 is a sectional view taken along line IV-IV of FIG. 1, and FIG. FIG. 5 is a half sectional side view showing the elastic bush of FIG. 4;
FIG. 6 is a side view of the cowling brace shown in FIG. 1, and FIGS. 7 and 8 are views taken along arrows VII and V of FIG. 6, respectively.
FIG. 5 ... head pipe, 10 ... fairing, 11 ... upper cowl, 14 ... cowling brace, 15 ... brace tube, 19A ... brace upper tube, 19B ... brace lower tube, 20 ... brace upper holder, twenty one
… Brace lower holder, 22… Mirror mounting bracket, 28… Connecting piece, 32… Elastic bush, 34… Bolt, 35… Nut, 36… Bolt, 37…
... nuts, 39 ... mirrors.

Claims (1)

(57) [Claims] 1. A fairing mount structure for a motorcycle, wherein a mirror is installed on a fairing that covers the front of the vehicle, and the fairing is supported by a head pipe of a body frame via a cowling brace. A motorcycle, wherein the connecting piece is fixed to an upper bracket and a lower bracket fixed to the lower and lower parts, respectively, while the cowling brace is floatingly supported on an upper part of the connecting piece and fixedly supported on a lower part of the connecting piece. Fairing mount structure.