JP2711841B2 - Rear fender mounting structure for motorcycle - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a rear fender mounting structure for a motorcycle, and more particularly to a rear fender mounting structure for reinforcing a rear fender. (Prior Art) In a motorcycle, various parts are attached to a frame which is a strength member of a vehicle body, and, for example, a rear fender is attached to a main frame. However, extending the rear end of the main frame to near the center of the upper part of the rear fender increases the weight and makes the appearance worse. Therefore, it was considered that a reinforcing plate was attached to the inside of the front part of the rear fender formed of a steel plate and welded, and the front part of the rear fender was fastened to the rear part of the main frame at the reinforcing plate part. Then, the front portions of the left and right club bars are fastened to the rear portions on both sides of the reinforcing plate, the rear portions of the rear fenders are fastened to the rear ends of the left and right club bars, and a tandem seat is fastened to the upper surface of the rear fender. (62-9789)
(Refer to Japanese Patent Publication No. 2) (Problems to be Solved by the Invention) However, in the conventional example, the left and right club bars serve as a handle for the fellow passenger and have backrests attached thereto. Is exposed, which is not preferable in appearance. The present invention has been made in view of such circumstances,
In the motorcycle rear fender mounting structure, the club bar in the conventional example is omitted, the front part of the reinforcing bracket (reinforcing plate) is connected to the frames to provide cantilever support, and the rear fender is reinforced by the rear part of the reinforcing bracket. It is an object to make it possible to arrange a tandem seat thereon. (Means for Solving the Problems) In order to solve the above problems, the present invention arranges a reinforcing bracket inside a front portion of a rear fender, the front portion of the rear fender is supported by a main frame, and the rear bracket is supported on a rear portion of the main frame. In a motorcycle rear fender mounting structure in which a tandem seat is disposed on a rear portion of a rear fender, a reinforcing bracket is formed along the rear fender in a U-shaped cross section, and the rear portion of the reinforcing bracket is tandem. A receiving member for extending the lower side of the seat, the front end of the reinforcing bracket is connected to the rear end of the bracket at the rear of the main frame at a plurality of locations, the reinforcing bracket is cantilevered, and the hook of the tandem seat is inserted, And the mounting member fixed to the rear end of the tandem seat attaches the rear fender to the reinforcing bracket. A space with a box-shaped structure is formed between the reinforcing bracket and the rear fender, which is superposed and fixed together, and extends in the front-rear direction at the center of the left and right widths, and the space is opened at the front and closed at the back. Configuration. (Operation) In the present invention, the rigidity of the rear fender to which a passenger load is applied is improved because the rear fender is supported by the box-shaped structure by the rear fender and the reinforcing bracket supported by the main frame. Further, since the reinforcing bracket is attached to the inside of the rear fender, the reinforcing structure is not exposed to the outside and is not difficult to see. Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In the figure, reference numeral 1 denotes a motorcycle. A front fork 4 is rotatably supported on a head pipe 3 of a body frame 2 of the motorcycle. A front wheel 5 is supported at a lower portion of the front fork, and a handle 6 is supported at an upper portion. I have. A main frame 7 and a down tube 8 extending rearward are connected to the head pipe 3, and a seat rail 9 is integrally formed at a rear portion of the main frame 7, and a rear portion of the seat rail 9 and the down tube 8 are connected to a bracket 10. Are connected by A support stay 11 is provided between the main frame 7 and the down tube 8, and an internal combustion engine 12 is mounted in a space formed by the support stay 11, and a fuel tank 13 is arranged above the internal combustion engine 12. A rear arm 14 is supported at a connection between the down tube 8 and the support stay 11, and a rear wheel 15 is provided on the rear arm 14. Further, a rear end of the rear arm 14 is provided with a suspension.
It is supported by the bracket 10 via 16. A seat 17 is arranged on the seat rail 9 and the bracket 10, and a tandem seat 18 is provided behind the seat 17 with a rear fender.
19 are located on. At the center 10a of each bracket 10 is a mounting part 20
However, mounting portions 21 are fixed to the rear end 10b. The mounting portion 20 includes a mounting member 16a of the suspension 16.
Is inserted from the outside, and this bolt 22
On the front side 19 of the rear fender 19 and the reinforcing bracket 23
a and 23a, and are fastened together with a nut 24. Similarly, the mounting portion 21 fixed to the rear end portion 10b has a bolt 2
5 is inserted from the outside, and the rear fender 19 is
And the central side portions 19b and 23b of the reinforcing bracket 23 are mounted and fastened together with a nut 26. Thus, the reinforcement bracket
The front end of the side 23 is connected to the rear end of the bracket 10 at the rear of the main frame 7 at a plurality of locations, and the reinforcing bracket 23 is cantilevered. Central upper part 23c of reinforcing bracket 23
Is formed by bolts 27 and nuts 28 as shown in FIG.
The rear bracket 23 is fixed to the rear fender 19 and the receiving member 29 by being fastened together.
At 1, it is fastened and fixed to a mounting member 32 fixed to the rear fender 19 and the tandem seat 18. As shown in FIG. 3, the reinforcing bracket 23 having an inverted U-shaped cross section extends from the bracket 10 to below the tandem seat 18 and is disposed inside the rear fender 19. It is formed. Between the reinforcing bracket 23 and the rear fender 19, a fourth
As shown in FIGS. 6 to 6, a space 33 having a box-shaped structure extending in the front-rear direction is formed at the center of the left and right width, and the space 33 is opened at the front and closed at the back. The bottom plate 34 of the tandem seat 18 has a hook 34a on the front side.
The attachment member 32 is fixed to the rear end portion 34b, and a plurality of rubber dampers 35 are attached to the central portion 34c. The tandem seat 18 has a hook 34 a on the bottom 34 fixed to the rear fender 19 and the reinforcing bracket 23.
The mounting bracket 32 of the rear end 34b is fastened together with the reinforcing bracket 23 to the rear fender 19 by inserting the mounting bracket 32 into the rear end 34b. Accordingly, for example, when a passenger sits on the tandem seat 18, a passenger load is applied to the rear fender 19, but the rear fender 19 is reinforced by the reinforcing bracket 23. That is, a hollow space 33 extending in the front-rear direction is formed between the reinforcing bracket 23 and the rear fender 19, thereby forming a box-shaped structure, without increasing the thickness of the rear fender 19 without increasing the thickness of the rear fender 19. The rigidity is improved, and the weight can be reduced. Further, since the reinforcing bracket 23 is attached to the inside of the rear fender 19 and is not visible from the outside, there is no possibility that the appearance is impaired by reinforcing the rear fender 19. (Effect of the Invention) In the present invention, a reinforcing bracket having an inverted U-shaped cross section is formed along the inside of the rear fender, and the reinforcing bracket is connected to the rear end of the main frame and is cantilevered. The rear extends below the tandem seat. A space is formed between the reinforcing bracket and the rear fender by a box-shaped structure extending in the front-rear direction at the center in the left-right width, and is configured to receive all the load of the tandem seat. As described above, the club bar in the conventional example is omitted, the rear fender is reinforced by the rear portion of the cantilever-supported reinforcing bracket, and the tandem seat can be arranged on the rear fender without being damaged in appearance. Also, according to the present invention, the mounting of the tandem sheet,
Since the formation of the space by the box-shaped structure is simultaneously performed by overlapping the receiving member / mounting member, the reinforcing bracket and the rear fender and fixing together, the number of parts is small, the structure is simple, and the assembling work is small. Since the box-shaped space is open at the front and closed at the rear, muddy water that jumps up during traveling and enters the space is discharged from the open front part.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a motorcycle, FIG. 2 is a plan view of a rear fender, FIG. 3 is a side view of a rear fender partially cut away, and FIG. FIG. 5 is a sectional view taken along the line IV-IV of FIG. 3, and FIG. 6 is a sectional view taken along the line VI-VI of FIG. In the figure, reference numeral 7 is a main frame, 10 is a bracket, 17 is a seat, 18 is a tandem seat, 19 is a rear fender, 23 is a reinforcing bracket, 29 is a receiving member, 32 is a mounting member, 33 is a space,
34a is a hook.

Claims (1)

(57) [Claims] An automatic bracket in which a reinforcing bracket is arranged inside the front of the rear fender, the front of this rear fender is supported by the main frame, seats are arranged on the rear of the main frame, and tandem seats are arranged on the rear of the rear fender In the rear fender mounting structure of a motorcycle, a reinforcing bracket is formed along the rear fender with an inverted U-shaped cross section, a rear portion of the reinforcing bracket extends below the tandem seat, and a front front end of the reinforcing bracket is provided at a plurality of points. The reinforcing bracket is connected to the rear end of the bracket at the rear of the frame, the reinforcing bracket is cantilevered, a receiving member for inserting a hook of the tandem seat, and a mounting member fixed to the rear end of the tandem seat, the rear fender is attached to the reinforcing bracket. Superposed and fixed by joint fastening, between the reinforcing bracket and the rear fender Rear fender mounting structure of the longitudinal space by the box-shaped structure extending is formed, a motorcycle the space, characterized in that the closed behind is open at the front in the middle of the left and right width.