JPH0248289A - Saddle type compact four-wheel-vehicle - Google Patents

Abstract

PURPOSE:To restrain vibration of front and rear fenders and not to be an obstacle to a foot rest at the time of maintenance of an engine by connecting the rear end of a front fender, the front end of a rear fender and the lower end of a body cover by a foot board. CONSTITUTION:A foot board 36 is constructed by a lower board 38, a upper board 40 and a middle board 42. The frond, rear and inside end of the middle board 42 is stood upward to be respectively connected to a front fender 32, a rear fender 34 and body cover 28. A portion connecting to a front and a rear fender 32, 34 is lapped to make the upper end of the middle board 42 showing at a front wheel 10 or rear wheel 12 side and this lapped portion is fixed with a biss 52. An opening portion 54 transverse the connecting portion of the foot board 36 and the body cover 28 is formed at the foot board 36. Accordingly, the fender, etc becomes hard to be vibrated, in addition, by removing the foot board, maintenance performance of an engine is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a small straddle-type four-wheeled vehicle that is equipped with an engine and a straddle-type seat between the front and rear wheels.

(Background of the Invention) In this type of vehicle, a body cover is provided to cover the sides of the engine from the left and right edges of the seat, and a front fender and a rear fender are provided in front and rear of the body cover so as to extend left and right. is publicly known (Japanese Patent Application Laid-Open No. 61-232921)
In conventional models, the front and rear fenders protrude left and right, making the front and rear ends prone to vibration.

On the other hand, there are some models in which an arc-shaped pipe extending between the front and rear fenders is welded to the body frame, and a hood board is fixed so that it is surrounded by this pipe, but in this case, the hood board or pipe becomes a problem when servicing the engine. There was the inconvenience of becoming

(Object of the Invention) The present invention was made in view of the above circumstances, and provides a small straddle-type four-wheeled vehicle that suppresses vibrations of the front and rear fenders and prevents the footrest from becoming an obstacle during engine maintenance, etc. The purpose is to provide

(Structure of the Invention) According to the present invention, the object is to provide an engine and a straddle type seat located between front and rear wheels, a body cover extending from the left and right edges of the seat to cover the sides of the engine, and a body cover that extends from the left and right edges of the seat to cover the sides of the engine. In a small straddle-type four-wheeled vehicle having a front fender and a rear fender that continuously project from side to side, the front and rear ends rise to connect to the front and rear fenders, and the inner edge rises to form the body cover. This is achieved by a small straddle-type four-wheeled vehicle characterized by having a hood board connected to the body cover, and an opening extending across the connection between the hood board and the body cover.

(Example) Fig. 1 is a side view of an embodiment of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a plan view of only the middle plate of the food board, and Fig. 4 shows the assembled state of the food board. IV-IV in Figure 3
Figure 5, which is a cross-sectional view taken along the line, also shows the assembled state as V in Figure 3.
A cross-sectional view taken along the -V line, Figure 6 is Vl-V in Figure 4.
FIG.

In Fig. 1.2, the reference numeral 10 and lO are the steering front wheels, 12.
Reference numeral 12 denotes driving rear wheels, and wide low-pressure tires are mounted on these wheels. 14 is an air-cooled single-cylinder engine, which is mounted near the front wheel 10 between the front and rear wheels 10112. That is, they are attached to a pair of left and right lower frames 16 of the vehicle body frame shown in FIG. 18 is a carburetor located behind the cylinder of the engine 14, and 20 is an exhaust muffler located between both rear wheels 12.

22 is the steering handle par 24 is this handle par 22
This is a fuel tank located behind the engine 14 and above the engine 14.

Reference numeral 26 is a straddle-type seat that is long from front to back, and extends rearward from diagonally above and behind the engine 14. A body cover 28 extends from the left and right edges of the seat 26. That is, the body cover 28 extends obliquely forward and downward of the seat 26 and covers the sides of the fuel tank 24 and the sides of the engine 14. In this embodiment, the body cover 28 is divided into upper and lower parts by a split surface 30. The front part of the body cover 28 extends continuously to a front fender 32 that extends to the left and right and covers the upper and rear areas of the front wheel 10. Further, the rear part of the body cover 28 is continuously connected to a rear fender 34 that similarly extends to the left and right and covers the upper and front areas of the rear wheel 12.

36 is a food board. This food board 36 includes a lower plate 38 and an upper plate 40 press-molded from sheet metal.
It is composed of a synthetic resin intermediate plate 42 sandwiched between the two. The lower plate 38 is a strength member bolted to the lower frame 16 as shown in FIG. 4.5. In other words, this lower plate 3
8 is removably fixed to a stay 44 welded to the lower frame 16 with a bolt 46, and its upper surface is set such that the outside of the vehicle body, that is, the side far from the lower frame 16, is higher with respect to the horizontal plane (line A in FIG. 5). It is sloping. As shown in Fig. 2.6, the upper plate 40 is formed with a large number of beads 40a extending sideways to the vehicle body to increase the rigidity of the upper plate 40. A small hole 40b is formed by burring so as to protrude. The protruding edge of this small hole 40b is made higher than the bead 40a to prevent the sole of the driver's shoe from slipping.

The middle plate 42 has a planar part sandwiched between the lower plate 38 and the upper plate 40 as shown in FIG. Appropriate unevenness is made on the surface. A plurality of drain holes 42d are formed inside this planar portion in the width direction of the vehicle body. The front, rear and inner edges of the middle plate 42 rise upward and form the front fender 32. Rear fender 34, body cover 2
8. Here, the upper edge of the middle plate 42 is connected to the front and rear fenders 32 and 34, as shown in FIG.
Alternatively, they are overlapped so as to appear on the rear wheel 12 side, and this overlapped portion is fixed with screws 40. Front/rear fender 3
In order to prevent water from flowing into the footrest surface side of the food board 36 from this overlapping part, a tongue part 3 serving as an eaves is provided at 2.34.
2a and 34a are integrally molded.

In addition, the edge 42e of the middle plate 42 on the outside of the vehicle body rises upward as shown in FIG.
It is set higher than 0b to prevent shoes from coming out of the food board 36, and the top surface is provided with a non-slip drawing pattern (Fig. 3) to prevent shoes from slipping when wet with muddy water. Moreover, this edge 42e is folded back close to the outside of the edge of the lower plate 38,
Even if an external force is applied to the edge 42e, the lower plate 38 protects the edge 42e by restricting deformation thereof.

In this way, the middle plate 42 and the upper plate 40 are attached to the lower plate 38 with screws 52 (
5), a water passage is formed between the upper plate 40 and the middle plate 42 with the outer side of the vehicle body raised higher, similar to the slope of the lower plate 38, as shown in Fig. 6. . That is, the upper plate 40
Water entering from the small hole 40b etc. passes through this passage and reaches the middle plate 42.
It is discharged through the water drain hole 42d, openings 42a-c, etc.

The hood board 36 attached to the vehicle body in this manner is continuous with the front and rear fenders 32, 34 and the body cover 28, but an opening 54 is formed at the connection part with the body cover 28 so as to cross this connection part. It is formed. This opening 5
4 faces the side of the engine 14, carburetor 18, etc., as is clear from FIG. 1.2.

Therefore, when the screws 50, etc. are removed, the bolts 46, etc. are removed, and the hood board 36 is removed, only the body cover 28 side remains in the opening 54, which opens wide downward. It becomes easier to maintain the clutch, transmission, etc. housed in the crankcase.

(Effects of the Invention) As described above, the present invention connects the rear edge of the front fender, the front edge of the rear fender, and the lower edge of the body cover with the hood board, so that the fender etc. are less likely to vibrate. In addition, since the opening is formed to cross the joint between the hood board and the body cover, the opening can be opened downward by removing the hood board, improving the ease of maintenance of the engine, etc. .

[Brief explanation of the drawing]

Fig. 1 is a side view of one embodiment of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a plan view of only the middle plate of the food board, and Fig. 4 shows the assembled state of the food board as shown in Fig. 3. IV-IV
Figure 5, which is a cross-sectional view taken along the line, also shows the assembled state as V in Figure 3.
- A cross-sectional view taken along the V line, Figure 6 is Vl - in Figure 4.
It is a Vl line end view. lO...Front wheel, 12...Rear wheel, 14...
- Engine, 26... Seat, 28... Body cover 32... Front fender, 54... Opening. Patent applicant Yamaha Motor Co., Ltd.

Claims (1)

[Scope of Claims] An engine located between the front and rear wheels, a straddle-type seat, a body cover extending from the left and right edges of the seat to cover the sides of the engine, and a body cover extending from the left and right continuously from the body cover. A straddle-type small four-wheeled vehicle comprising a front fender and a rear fender, comprising a hood board whose front and rear ends rise and are connected to the front and rear fenders, and whose inner edges rise and are connected to the body cover. A straddle-type small four-wheeled vehicle, characterized in that an opening is formed to cross the connection between the food board and the body cover.