JPS63315379A - Rear fender - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a rear fender provided in a vehicle such as a three-wheeled motor vehicle or a four-wheeled motor vehicle.

[Conventional technology]

BACKGROUND ART In vehicles such as tricycles and four-wheeled vehicles that are ridden by straddling the seats, it is necessary to accommodate a large number of parts in an extremely limited space. For this reason, conventionally, parts with relatively large volumes, such as air cleaners with filter elements removably attached to the side walls extending in the vertical direction, are housed in the space between the left and right rear wheels, and the upper part of the air cleaner is housed in the space between the left and right rear wheels. It is configured to be covered by a rear fender that is wide in the vehicle width direction and has an opening for filter element replacement. The air cleaner and rear fender are each separately attached directly to the vehicle body frame.

[Problem that the invention seeks to solve]

However, in such a structure, the number of attachment parts for attaching the air cleaner and rear fender to the vehicle body frame increases, resulting in a problem that the structure for attaching the parts becomes extremely complicated. Furthermore, when replacing the filter element, there is also the problem that it becomes difficult to attach and detach the filter element.

That is, not only is it difficult to see the mounting part, especially the lower mounting part, from above, but also tools and the like must be inserted into the narrow space formed between the filter element and the side wall of the air cleaner case.

[Means for solving problems]

The present invention was made in view of the above circumstances, and it is an object of the present invention to provide a rear fender in which the mounting structure of parts can be simplified and a filter element can be easily attached and detached. The rear fender according to the present invention is provided with a recessed portion having a rearwardly inclined front wall approximately in the center of the rear fender, a lid body for closing an upper opening of the recessed portion, and a passage provided in the front wall. A filter element is attached to cover the pores.

[Effect]

In the present invention, since the rear fender and the air cleaner are integrally formed, the rear fender and the air cleaner can be attached at the same time by attaching one member to the vehicle body frame. In addition, since the filter element is oriented diagonally upward, the mounting part is easy to see from above.

[Example] Hereinafter, the configuration and the like will be explained in detail with reference to an example shown in the drawings. 1 is a sectional view taken along the line 1-1 in FIG. 2 showing a rear fender according to the present invention; FIG. 2 is a plan view showing the rear fender;
Figure 3 is a sectional view taken along line mm in Figure 1, and Figure 4 is a cross-sectional view taken along line I in Figure 1.
5 is a side view showing a four-wheeled motor vehicle equipped with a rear fender, and the reference numeral 1 in FIG. 5 indicates a vehicle body frame. The vehicle body frame l extends in the longitudinal direction of the vehicle body, and a pair of left and right front wheels 3 that are steered by a rod-shaped steering handle 2 are disposed at the front part, and a pair of left and right rear wheels 4 at the rear part. is installed.

Reference numeral 5 denotes a seat arranged in the front-rear direction in the center of the vehicle body, on which the driver rides astride. This seat 5 is supported by a pair of left and right seat pillar tubes 1a, a pair of left and right seat rails 1b and a backstay IC that extend rearward from both seat pillar tubes 1a so as to face each other at a distance in the vehicle width direction. has been done. 6 is rear wheel 4
The engine drives the fuel tank 7, and is housed in a space formed below the fuel tank 7 and supported by the vehicle body frame 1. Reference numeral 8 designates a rear arm that is swingably pivoted to the support column 1a and supports the rear wheel 4, and reference numeral 9 designates a cushion unit that absorbs the vertical movement of the rear arm 8.

Reference numeral 11 denotes a rear fender made of synthetic resin and formed wide in the vehicle width direction so as to cover the upper portions of the pair of left and right rear wheels 4. This rear fender 11 has mounting portions 11a provided at multiple locations.
The seat rail 1b is attached and supported by bolts (not shown) inserted through the seat rail 1b. A concave portion 12 is integrally provided at a substantially central portion of the upper surface corresponding to the space between the seat rails lb. This concave portion 12 is formed into a triangular shape in side view from a front wall 12a that is inclined backwardly, and a left side wall 12b, a right side wall 12c, and a rear wall 12d that extend in a substantially vertical direction. engine 6
low enough to prevent being sucked into the air. Further, the upper opening of the concave portion 12 extends above the seat rail 1b. Reference numeral 13 indicates a drain hole provided in the bottom 12e of the recessed portion 12, and 14 indicates a cap for opening and closing the drain hole 13.

15 is a vent provided in the front wall 12a, and 6 is an intake pipe for supplying intake air flowing out from the vent 15 to the carburetor 17. This intake pipe 16 bypasses the cushion unit 9 and extends toward the carburetor 17. A mounting plate 18 is fixed to the front wall 12a from the inside, and connects the intake pipe 16 to the front wall 12a by sandwiching the flange 16a provided at the end of the intake pipe 16 between the front wall 12a and the front wall 12a. .

Reference numeral 21 designates a filter element formed into a bottomed cylindrical shape whose internal space has a cross-sectional area that gradually increases as it goes toward the opening direction from the filter material. It is attached so as to cover the ventilation hole 15.

25 is a resin lid that is detachably attached to the rear fender 11 with screws or the like and closes the upper opening of the concave portion 12;
Reference numeral 26 denotes an intake passage provided in the lid 15 and communicating between the inside of the recessed part 12 and the outside.

A rubber intake duct 27 extending forward is connected to the tip of the intake passage 26 . That is, the filter element 21 and the lid body 25 constitute an air cleaner with the concave portion 12 serving as an air cleaner case.

Reference numeral 31 denotes a rear recessed portion integrally provided behind the recessed portion 12 of the rear fender 11. The rear concave portion 31 has a box shape capable of accommodating a battery, and has a retaining wall 31a for retaining the battery. That is, this rear recessed portion 31
forms a battery storage box.

In the fender configured in this way, outside air is sucked in through the intake duct 27 and passed through the filter element 2.
1 and then sucked into the engine 6 via the intake pipe 16. Here, the concave portion 12 of the rear fender 11, the filter element 21, and the lid body 25 function as an air cleaner that cleans the outside air.

Therefore, the air cleaner can be integrally formed with the rear fender 11, and by attaching one member, that is, the rear fender 11 to the seat rail 1b,
The rear fender 11 and the air cleaner can be installed at the same time. As a result, the number of attachment parts can be reduced compared to when two members are attached separately, so the structure for attaching parts can be simplified.

Furthermore, since the concave portion 12 functions as a reinforcing rib for the rear fender 11, the rigidity of the rear fender 11 can be increased. As a result, the rear fender 11 becomes less likely to vibrate and does not resonate with the vibrations of the engine, which has the advantage of reducing noise.

Furthermore, since the front wall 12a is inclined, the filter element 21 can be directed obliquely upward. Therefore, the mounting portion can be easily seen from above, and the space between the filter element 21 and the rear wall 12d can be expanded to make it easier to insert tools, so that the filter element 21 can be easily attached and detached. Moreover, the front wall L2a
The area of the filter can be made larger than that in the vertical case, and accordingly, the opening area of the ventilation hole 15 and the filtering area of the filter element 21 can be made larger, so that the ventilation resistance can be reduced.

In the embodiment, the upper opening of the recessed portion 12 extends above the seat rail lb, and the left side wall 12b and the right side wall 12C can be brought close to the seat rail lb, thereby reducing the space between the seat rails lb. The internal volume of the recessed portion 12 can be increased by making full use of them.

〔Effect of the invention〕

As explained above, according to the present invention, a concave portion having a front wall inclined toward the rear is integrally provided in the approximate center of the rear fender, a lid body is provided for closing the upper opening of the concave portion, and a lid body is provided for closing the upper opening of the concave portion. Since the filter element is attached to cover the ventilation hole provided in the wall, the rear fender and the air cleaner can be integrally formed, and by attaching one member to the vehicle body frame, the rear fender and the air cleaner can be attached at the same time.

Therefore, the number of attachment parts can be reduced compared to a structure in which the rear fender and the air cleaner are attached separately, so the structure for attaching parts can be simplified.

Furthermore, since the filter element can be oriented obliquely upward to make the mounting portion easier to see from above, the filter element can be easily attached and detached.

[Brief explanation of the drawing]

FIG. 1 shows the rear fender according to the present invention.
I-line cross-sectional view, Figure 2. Plan view showing the harrier, Figure 3.
The figure is a sectional view taken on line 11 in Figure 1, and Figure 4 is a sectional view of r'/- in Figure 1.
FIG. 5 is a side view showing a four-wheeled motor vehicle equipped with a rear fender. ti...Rear fender, 12...Concave part, 12
a...Front wall, 16...Intake pipe, 2I...Filter element, 25...Lid body.

Claims (1)

[Claims] In the rear fender, which is formed wide in the vehicle width direction so as to cover the upper portions of the left and right rear wheels, a recessed portion having a front wall that slopes downward toward the rear is integrally provided approximately in the center of the upper surface, and an upper opening of this recessed portion is provided. In addition to providing a removable closing lid,
A rear fender comprising a ventilation hole provided in the front wall and a filter element attached to cover the ventilation hole.