JPH0557155B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a motorcycle, in which a fuel tank is disposed on a body frame on which an engine is mounted, and a seat is disposed behind the fuel tank, and particularly to a structure for arranging a large storage box thereof.

(Prior art) As a method for arranging a large storage box in the body of a motorcycle, the engine is suspended below the body frame between the head pipe and the seat, and the fuel tank is disposed below the seat.
A large storage device was developed in which a large storage box for storing helmets was placed above the engine, and the top of the large storage box was covered with an exterior cover that could be opened and closed.
No. 59-192481.

(Problems to be Solved by the Invention) In such a large storage device, since the fuel tank is located below the seat, the means for injecting fuel and supplying fuel to the engine become complicated. In addition, auxiliary equipment such as the intake system is installed between the large storage box located inside the vehicle and the engine cylinder located below it, so space is secured in front and behind the large storage box. difficult to do.

Therefore, an object of the present invention is to utilize the space below the fuel tank disposed on the body frame on which the engine is mounted and above the transmission case behind the engine cylinder, and the body frame space below the seat in front of the rear wheels. The fuel tank can be placed above the cylinder, simplifying the structure of the fuel supply system, and the helmet can be taken in and out using the foldable seat located behind the fuel tank. To provide a motorcycle capable of forming a large storage space below both of them and allowing a large storage box to be illuminated.

(Means for Solving the Problems) In order to solve the above problems and achieve the objects, the present invention provides a motorcycle with a fuel tank 18 disposed on the body frame 1 on which the engine 11 is mounted,
A seat 31 that can be raised and folded behind the fuel tank 18
The cylinder section 14 of the engine 11 is provided at the front part of the transmission case 13, and the front part of the large storage box 40 is arranged above the transmission case 13 and below the fuel tank 18. It is characterized in that the rear part of the large storage box 40 is located in front of the rear wheel 26 and opened below the seat 31.

(Function) The rear part of the large storage box 40 is located in front of the rear wheel 26, and the front part of the large storage box 40 is located in the space of the vehicle body frame above the transmission case 13 of the engine 11 mounted on the motorcycle and below the fuel tank 18. Since it is opened below the seat 31, the helmet H can be taken in and taken out by opening and closing the box opening part 49 using the foldable seat 31.

Therefore, the degree of freedom in arranging the seat 31 and the fuel tank 18, intake devices 15, 16, etc. above the cylinder portion 14 of the engine 11 is improved, and the appearance is also improved.

(Example) Examples will be described below based on the accompanying drawings.

In Fig. 1, 1 is a body frame, 11 is an engine, and 31 is a seat.The main parts of the body frame 1 are composed of a head pipe 2, left and right main pipes 3, 3, which are made up of square pipes, and a center pipe 4, 4. . A head pipe 2 fixedly installed between the front ends of the main pipes 3 and 3 has a front fork 22 that supports a front wheel 21 at the bottom thereof, and a front fork 22 that supports an upper and lower bridge 2.
3, 24 and a steering stem (not shown), the front fork 22 is supported so as to be freely steerable.
A handle 25 is provided at the top, and a rear swing arm 27 that supports a rear wheel 26 is swingably supported between the center pipes 4, 4.

The engine 11 has a cylinder part 14 that tilts forward on the front part of a crankcase 12 with a transmission case 13 at the rear part, and has main pipes 3,3.
The rear wheel 26 is suspended from the center pipes 4, 4, and a drive device, as shown in the drawing, a chain sprocket mechanism 28, is installed from one side of the transmission case 13 to the rear wheel 26. Further, a carburetor 15 is connected to the upper part of the forward-inclining cylinder part 14, and an air cleaner 16 is connected above the carburetor 15 as shown in FIG. A seat 31 is housed in the central recess of the tank 18 and can be raised and folded behind the fuel tank 18, and a rear cowl 38 is provided below the rear of the seat 31.

The front part of a large helmet storage box 40 is arranged above the transmission case 13 of the engine 11 and below the fuel tank 18, and the rear part of the helmet storage box 40 is open below the seat 31. .

First, in the first embodiment, as shown in FIGS. 3 to 5, the vehicle body frame 1 is a pipe frame,
That is, a cross pipe 5 is installed between the center pipes 4, 4, and seat pipes 6, 6 extending rearward are fixedly installed at the rear of the main pipes 3, 3.
Center pipe 4, 4 upper part and seat pipe 6, 6
Sub pipes 7, 7 are installed between the rear parts, and cross plates 8 are installed between the seat pipes 6, 6 in the front and rear and in the middle part.
..., and a pair of left and right support pieces 9 are erected on the front cross plate 8.

On the other hand, the seat 31 is made up of a bottom plate 32, a skin 33, and a cushion material 34 interposed therebetween.
1 is a cross plate 8 between the seat pipes 6, 6...
... Support pieces 9, 9 at the front end of the bottom plate 32 placed on top
The seat 31 is mounted on the rear part of the vehicle body frame 1 so that the front end of the seat 31 can be raised and folded freely.

The helmet storage box 40 is attached to the seat bottom plate 32.
The rear upper surface is open to the front lower surface of the body, and is constructed by combining left and right side covers 41, 41, a rear half body 51, and a front half body 61, both of which are made of resin.

The side cover 41 has an upper edge 42 whose circumference is bent inward and continues to the rear lower surface of the fuel tank 18 and the front lower surface of the seat 31, a lower edge 43 facing downward to the sub pipe 7, the rear upper surface of the main pipe 3, and the upper rear surface of the center pipe 4. It has a front edge 44 continuous to the rear cowl 38, and a rear edge 45 continuous to the front part of the rear cowl 38, and has an upper edge 42 facing inward to the hanging part 36 on the side of the seat 31 above the seat pipe 6, and a lower edge 43 is attached to the lower part of the sub pipe 7.

The rear half body 51 has a rear plate 55 erected at the rear of the lower plate 52, and has mating parts 53, 53 formed on the sides of the lower plate 52.
A connecting piece 54 is formed on the front part of the lower plate 52, and
It consists of a bulging rear fender part 56 that is continuous with the lower plate 52 and the rear plate 55, and the mating parts 53, 53 are attached to the sub pipes 7, 7 from above, and are attached between the rear plate 55 and the seat bottom plate 32. A sealing material 37 is interposed.

The front half body 61 is a front plate 6 that tilts backward in front of the lower plate 62.
A connecting piece 63 is formed on the rear part of the lower plate 62, and protruding pieces 65, 65 are provided on the upper side of the side plates 64, 64 which are provided on the side of the lower plate 62, and projecting pieces 65, 65 are connected to the upper surface of the rear part of the main pipes 3, 3. A locking piece 67 is provided at the middle part of the upper surface of the front plate 66, and an upper edge 68 that abuts the front cross plate 8 is provided at the rear of the upper surface of the front plate 66.
Furthermore, a battery storage section 70 and other auxiliary equipment storage section 80 are provided on the upper front surface of the lower plate 62 and the rear surface of the lower part of the front plate 66.

The connecting piece 63 at the rear of the lower plate 62 of the front half body 61
is stacked on the connecting piece 54 of the front part of the lower plate 52 of the half body 51 and fastened with screws, etc., and the lower plate 52 is supported by the main pipes 3, 3 with the projecting pieces 65, 65, and the upper surface of the front plate 66 of the front half body 61 is The locking piece 67 at the intermediate portion is locked into the case recess 17 on the rear lower surface of the air cleaner 16 and installed.

In this way, the front part of the helmet storage box 40, which is formed by combining the left and right side covers 41, 41, the rear half body 51, and the front half body 61, both of which are made of resin, is placed above the transmission case 13 of the engine 11 to the fuel tank 18. The box opening portion 49 on the upper surface of the rear portion thereof is opened on the lower surface of the front surface of the seat bottom plate 32.

Therefore, as shown in FIG. 2, by opening and closing the box opening portion 49 using the foldable seat 31, a full-face helmet H, for example, can be taken in and taken out. This helmet H is stored forward and has a shape in which the front upper part is tilted backwards.
It is tilted backward approximately along the rear bottom surface of the.

Furthermore, in the embodiment, not only can the helmet H be stored in the helmet storage box 40, but also the battery B can be stored in the battery storage section 70, and any other auxiliary equipment can be stored in the auxiliary equipment storage section 80. It can be stored.

Next, in the second embodiment, as shown in FIGS. 6 to 8, the vehicle body frame 1 is a monochrome frame, that is, the front edge of a metal side cover 41 is provided on the rear upper surface of the main pipe 3 and the upper rear surface of the center pipe 4. 44 and fix the lower edge 4 of the side cover 41.
3, the joint piece 53 on the side of the lower plate 52 of the rear half body 51 made of metal is bonded and fixed, and the side part of the rear plate 55 of the half body 51 is bonded and fixed on the inner surface of the rear edge 45 of the side cover 41. Further, a cross plate 8 is installed between the upper edges 42, 42 of the side covers 41, 41, and a pair of left and right support pieces 9, 9 are installed. 58, and a rear seat rail 47 and a rear sub-rail 48 are provided protruding from a mounting piece 46 provided on the rear edge 45 of the side cover 41.

Then, in the same manner as described above, the connecting piece 63 at the rear of the lower plate 62 of the front half body 61 made of resin is overlapped with the connecting piece 54 at the front of the lower plate 52 of the rear half body 51 and secured with screws, etc., and the front plate of the front half body 61 is 66 Locking piece 6 in the middle part of the upper surface
7 into the case recess 17 on the lower rear surface of the air cleaner 16
Attach it by locking it inside.

The front part of the helmet storage box 40, which is made up of the metal left and right side covers 41, 41 and the rear half body 51 integrated with the vehicle body frame 1 and the resin front half body 61, is similarly attached to the engine 11. The box opening part 49 on the rear upper surface of the fuel tank 18 is located above the fuel tank 18 and above the fuel tank 18, and a box opening part 49 on the rear upper surface thereof is opened on the front lower surface of the seat bottom plate 32.

Here, the upper edge 42 of the side cover 41 facing inward of the hanging portion 36 on the side of the seat 31 may be formed into a drip portion with a U-shaped cross section that opens outward as shown in FIG. 9a, or as shown in FIG. like side cover 41
If a sealing material 39 made of an elastic material is interposed between the upper edge 42 and the seat bottom plate 32, the box opening portion 49
It is possible to prevent rainwater etc. from entering the interior.

It should be noted that the specific structure of the helmet storage box 40 is not limited to that of the embodiment, and any structure may be adopted, and the structure of the seat 31 may be hinged at the rear or one side. Of course. Furthermore, although the cylinder portion 14 of the engine 11 is tilted forward at about 45° in the embodiment, it may be a horizontal cylinder, and the engine type and cylinder shape are free.

(Effects of the Invention) As described above, according to the present invention, in a motorcycle, a fuel tank is disposed on the body frame on which the engine is mounted, and a seat that can be freely raised and folded is disposed behind the fuel tank. The cylinder part is provided at the front part of the transmission case, and the front part of a large storage box is located above the transmission case and below the fuel tank, and the rear part is located in front of the rear wheels and opens below the seat. Therefore, there is a high degree of freedom in arranging the fuel tank, intake system, etc. located above the cylinder part and the seat behind it, and it is also possible to open and close the seat covering the box opening to take the helmet in and out. , so parts can be simplified. Furthermore, it is possible to obtain a large storage box by extending not only below the seat but also below the fuel tank in front of the seat.

[Brief explanation of drawings]

Fig. 1 is a schematic side view of a motorcycle to which the present invention is applied, Fig. 2 is a perspective cut-away side view of its main parts, Fig. 3 is a side view of the vehicle body frame structure according to the first embodiment, and Fig. 4. is an exploded perspective view of the vehicle body frame and helmet storage box components, FIG. 5 is a half-cut composite sectional view based on the - line and '-' line of FIG. 3, and FIG. 6 is a vehicle body frame structure according to the second embodiment. , FIG. 7 is an exploded perspective view of the vehicle body frame and helmet storage box components, FIG. 8 is a half-cut composite sectional view based on the - line and '-' line of FIG. 6, and FIGS. 9 a and b FIG. 8 is an enlarged view showing a modification example of the part in FIG. In the drawings, 1 is the vehicle body frame, 11 is the engine, 13 is the transmission case, 14 is the cylinder section, 15 and 16 are the intake devices, 18 is the fuel tank,
31 is a seat, 40 is a large storage box, 41 is a side cover, 49 is a box opening part, 51 is a rear half body, 56 is a rear fender part, 61 is a front half body, 6
6 is the front of the box, and H is the helmet.

Claims (1)

[Claims] 1. A fuel tank is disposed on a vehicle body frame on which an engine is mounted, a seat that can be raised and folded is disposed behind the fuel tank, and the cylinder part of the engine is arranged in the front part of a transmission case. The front part of a large storage box is arranged above the transmission case and below the fuel tank, and the rear part of the large storage box is located in front of the rear wheels and opened below the seat. A motorcycle featuring the following. 2. The motorcycle according to claim 1, wherein the large storage box is for storing a helmet, and the front surface of the box is inclined rearward approximately along the rear bottom surface of the fuel tank.