JPS6234871Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in the mounting structure of a rear fender mounted on a motorcycle.

Locking parts consisting of circular ears formed on the left and right sides of the rear fender made of synthetic resin are provided at the top and bottom, and the outward spreading force of the rear fender and the circular ears are provided on the left and right rear stays, etc. that form the rear frame member of the motorcycle. A mounting structure is known in which the rear fender is locked and supported by the pinching force of the ear pieces.

However, when installing the rear fender, it is necessary to bend the fender and attach it to the rear stay in order to generate a spreading force, so there is an inconvenience that it is not easy to insert the rear fender between the two frame members from below.

The present invention has been made to solve the above-mentioned disadvantages.The purpose of the present invention is to allow the hanging piece of the engaging portion provided on the rear fender to easily bend, and to place the rear fender between the left and right rear frame members. This makes it easy to insert the rear fender, making it easier to install the rear fender than before, and also minimizes the stress on the locking part, which is extremely advantageous for improving durability and reliability. is to provide the mounting structure.

In order to achieve such an object, the present invention forms the hanging pieces constituting the locking part vertically, and the distance between the hanging pieces is set to be smaller than the distance between the left and right rear square frame members forming a vertically long rectangle in the front section. The rear fender is also spaced sufficiently narrowly to form the required space between the vertical piece and the frame member, and the rear fender is inserted between both frame members and locked so that it fits onto the frame member using the locking horizontal piece and the protruding piece. , and the locking horizontal piece is formed to extend from a midway portion in the height direction of both side pieces of the rear fender.

A preferred embodiment of the present invention will be described below in detail with reference to the accompanying drawings. 1 is a side view of the motorcycle, FIG. 2 is an exploded perspective view of a rear fender portion, and FIG. 3 is a sectional view taken along line 3-3 in FIG.

A head tube 3 is provided at the front end of a body frame 2 of a motorcycle 1, a front fork 5 supporting a front wheel 4 is supported on the head tube 3 in a freely steerable manner, and a handle 7 is provided on a top bridge 6.

The vehicle body frame 2 forms a pair on the left and right sides, and includes a main pipe 21 extending from the rear upper part of the head tube 3 to the rear of the side, and a down tube 2 hanging down from the rear lower part of the head tube 3 to the rear and lower side of the head tube 3.
2. A down tube blower 23 that extends rearward from the lower end of the down tube blower 22; A center tube 2 that extends forward and upward from the rear end of the down tube blower 23 and continues to the rear end of the main pipe 21;
4. It consists of a seat rail 25 that extends rearward of the main pipe 21, and a rear stay 26 that connects the substantially central part of the seat rail 25 and the lower part of the center tube 24 and is installed tilting backwards. These left and right frame members are rectangular pipes with a vertically elongated rectangular cross section obtained by press-forming steel plates, and are connected to each other by a cross member.

A fuel tank 8 is installed across the main pipes 21, 21 constituting the vehicle body frame 2, and a seat 9 is placed on the seat rails 25, 25, and a seat is placed behind or below the rear side of the seat 9. The cowl 10 is covered and an engine 11 is mounted in a space surrounded by a main pipe 21, a down tube 22, a down tube blower 23, and a center tube 24 when viewed from the side, and the engine 11 has two cylinders each in the front and rear. It is a 4-cylinder engine with a V-shaped side profile.

On the other hand, the rear fork 13 supporting the rear wheel 12 is pivotally supported 14 on a center gusset 27 fixed to the front surface of the center tube 24, and a rear cushion unit (not shown) is interposed between the rear fork 13 and the cross member of the seat rails 25, 25.

A rear fender 30 is locked between the left and right rear stays 26, which are rear frame members, as described below.

In the illustration, the rear fender 30 is composed of a front half body 31 that constitutes the main part, and a rear half body 41 that is connected to and integrated with the rear part of the front half body 31. In this embodiment, the front half body 31 is locked to the rear stays 26, 26. The structure is as follows.

That is, locking portions 33, 33 are provided on the left and right side pieces 32, 32 of the front half 31 of the rear fender 30, and the locking portions 33, 33 are molded integrally with the front half 31 from synthetic resin.

The locking portion 33 has a locking horizontal piece 34 extending outwardly from a midway point near the center of gravity of the rear fender 30 in the height direction of the side piece 32 of the front half body 31, and the locking horizontal piece 34 is a slit. A hanging piece 3 is hung from the outer end of a horizontal piece 36 which is formed so as to continue forward through a hanging piece 35.
7, and a locking protrusion 38 formed on the upper end of the hanging piece 37 and extending further outward.

First, the locking horizontal piece 34 and the horizontal piece 36 in front of it are formed to be long when viewed from the side, imitating the rearwardly inclined shape of the rear stay 26, and the maximum distance between the outer edges of the left and right locking horizontal pieces 34, 34 is as follows. These are the front parts 34a, 34a near the slit 35, and these front parts 34a, 3
The distance between the outer edges of 4a is between the left and right square rear stays 2
It is formed so as to wrap up to the middle part of the lower surfaces 26a, 26a of 6, 26.

Further, the distance between the outer ends of the left and right horizontal pieces 36, 36 that continue in front of the locking horizontal piece 34 through the slit 35 is the inner side surface 26b, 2 of the left and right square rear stays 26, 26.
The width is sufficiently smaller than the distance between 6b, and this horizontal piece 3
Hanging pieces 37, 37 are formed upright at the outer ends of 6, 36. The hanging piece 37 is vertically elongated by 3 to approximately match the height of the square rear stay 26, which has a vertically elongated rectangular cross section.
7a, spaces S are formed between the left and right hanging pieces 37, 37 and the inner surfaces 26b, 26b of the square rear stays 26, 26, respectively, when the rear fender 30 is mounted.

At the upper end of the hanging piece 37, a locking protrusion 38 is formed to extend further outward in parallel with the horizontal piece 36, and the outer edge distance of the left and right locking protrusions 38, 38 is equal to the distance between the left and right square rear stays 26. , 26 so as to wrap up to the middle part of the upper surfaces 26c, 26c.

In addition, the side piece 32 and the horizontal piece 3 of the rear fender front half body 31
Two ribs 39, 39 are formed between 6. In addition, the side piece 32 is formed to hang down below the locking horizontal piece 34 and the horizontal piece 36.

Then, the rear fender front half 31 is inserted between the left and right rear stays 26, 26, and is locked and mounted. At this time, the hanging piece 37 constituting the locking part 33 is vertically long 37a.
Therefore, by utilizing the elasticity of the synthetic resin material, the left and right hanging pieces 37, 37 can easily bend in the direction toward each other, and the inner surfaces of both hanging pieces 37, 37 and the respective square rear stays 26, 26 26b, 26b, since spaces S, S are formed in advance, the rear stay 2 of the front half body 31
Insertion between 6 and 26 can be performed extremely easily without requiring much force.

The mounting and holding is carried out by the square rear stay 2, in which the locking horizontal piece 34 constituting the engaging portion 33 forms a vertically long rectangle in the normal cross section.
A locking protrusion 38 is attached to the lower surface 26a of 6 and the upper surface 26c of the same.
Since the rear fender front half body 31 can be positioned and securely secured to the rear stays 26, 26, it is possible to securely attach the rear fender front half body 31 to the rear stays 26, 26.

Further, when the vehicle is running, vibrations due to acceleration and unevenness of the road surface are applied to the rear fender, and the vibrations act approximately near the center of gravity of the substantially U-shaped cross section of the rear fender. Therefore, the horizontal piece 3 is fixed at approximately the same height as the center of gravity.
4 is extended, the distance between the center of gravity (point of action) on which the vibration acts and the locking part (support point) is substantially minimized, and the stress generated in the locking part can be substantially minimized. This can greatly contribute to improving the durability and reliability of

A dowel pin 28 protruding inwardly from the seat rail 25 is inserted and locked into the rear side wall 32b of the front half body 31.

By the way, since both rear stays 26, 26 are opened so that the lower interval b is larger than the upper interval a of the rear stays 26, 26 (b>a), the rear fender front half 31 is moved in the direction of the arrow in FIG. It is designed to be easier to insert.

On the other hand, the rear half body 41 connects the upper wall 42 to the seat rail 2
It is supported by being bolted to a cross plate 29 installed between 5 and 25. The front end of the side clip 45 is bolted to a female threaded hole 26a formed in the rear stay 26, and the rear end is attached to a mounting piece 25 that protrudes outward from the rear end of the seat rail 25.
It is attached by bolt connection 47 to a.

A rearwardly tilting window frame 43 is installed at the rear end of the upper wall 42 of the rear half body 41, and a tail light 5 is mounted on the front side of the window frame 43 through a gasket 51 as shown in FIG.
2 is placed. Two left and right locking protrusions 53, 53 are provided on the lower surface of the taillight 52 to hang down, and by fitting the locking protrusions 53, 53 into the grommets 44, 44 near the rear end of the upper wall 42. The tail light 52 is arranged at a predetermined location.

The tail light 52 is attached by bolting 48 a mounting piece 54 protruding from the upper surface of the window frame 43 to the upper part of the window frame 43. This is shown in FIG.

In FIG. 4, 55 is a light bulb, 56 is a gasket, and 57 is a socket and cord.

On the other hand, the seat cowl 10 is covered up to the window frame 43, and the rear end of the seat cowl 10 and the upper end of the window frame 43 are engaged by a concave-convex engagement 49 or the like.

Furthermore, a tool setting plate 58 is bolted 59 to the upper wall 42 of the rear half body 41 in front of the tail light 52, and the interior of the seat cowl 10 in front of this plate constitutes a storage space for small items.

Between the tool setting plate 58 and the tail light 52, dead spaces D and D are formed on the left and right sides, as schematically shown in FIG. Therefore, igniters 61, 61 are appropriately attached to the back surface of the tool setting plate 58 and arranged in the dead spaces D, D, respectively. As a result, the igniters 61, 61 could be arranged by effectively utilizing the dead spaces D, D.

In the embodiment, the rear fender is of a split type, but it may be of an integral type, and although the structure other than the main parts has been described, it goes without saying that the structure other than the main parts is arbitrary.

As is clear from the above description, according to the present invention, the vertical pieces constituting the left and right locking parts of the rear fender are formed vertically, and the distance between the vertical pieces is set to the left and right rear square frames forming a vertically elongated rectangle in a normal section. Since the spacing is sufficiently narrower than the distance between the members, the hanging pieces have sufficient flexibility, and there is a certain amount of space between the hanging pieces and the inner surface of the rear square frame member. Therefore, the rear fender can be attached to the rear frame member much more easily than in the past. Furthermore, by forming the locking horizontal pieces to extend from the middle part in the height direction of both side pieces of the rear fender, the stress in the locking portion can be minimized, which improves durability and reliability. Therefore, it can contribute greatly.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a side view of a motorcycle, Fig. 2 is an exploded perspective view of the rear fender section, Fig. 3 is a sectional view taken along line 3-3 in Fig. FIG. 4 is an exploded perspective view of the tail light unit, FIG. 5 is a vertical sectional side view of the rear part of the rear fender, and FIG. 6 is a schematic plan view thereof. In the drawings, 1 is a motorcycle, 26 is a rear square frame member, 30 is a rear fender, 33 is a locking part,
34 is a locking horizontal piece, 37 is a vertically long hanging piece, and 38 is a locking projection piece.

Claims (1)

[Scope of Claim for Utility Model Registration] In a rear fender having left and right pieces that are fixedly supported on rear frame members of a motorcycle, a locking horizontal piece is provided on both left and right sides of the rear fender in a height direction of the both pieces. In addition to extending from the middle part, vertically long hanging pieces are formed on both left and right sides of the rear fender at intervals slightly narrower than the inner width of the left and right rear square frame members that form a vertically long rectangular cross section. An integral locking protrusion is formed to extend outward from the end of the rear fender, and a rear fender is inserted between the left and right rear square frame members, and the locking horizontal pieces and the protrusion are connected to the square frame member. A mounting structure for a rear fender, characterized in that the rear fender is locked by being pressed against a surface.