JPH0137317B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a motorcycle that has an oil tank for storing lubricating oil installed below the seat and a side stand on one side of the vehicle body.

Generally, electrical components, tools, etc. are mounted on the upper part of, inside, or on both sides of the frame below the seat of a motorcycle, so there is not enough space to install an oil tank. On the other hand, in order to make riding easier, it is not preferable to make the seat height too high, so the oil tank should be made horizontally long, thereby reducing the front-rear width and vertical thickness, and then attaching it to the top of the vehicle body frame. is possible. Some motorcycles of this type are equipped with only a side stand on one side of the body, while others are equipped with both a side stand and a main stand.In these motorcycles, the body is supported by the side stand. If you try to inject lubricating oil into the oil tank, the car body will tilt toward the side stand, so especially if the oil tank is made horizontally long as described above, simply installing an oil inlet on the top of the oil tank will cause the car body to tilt toward the side stand. In some cases, due to the inclination, a considerable volume of air may accumulate above the oil inlet, making it impossible to fill up the oil tank.
In addition, since the oil level fluctuates due to this type of inclination, if the oil level drops to near the detection limit, when the side stand is used, the oil detector will activate and indicate a lack of oil, giving the user a strange feeling. may be given.

The present invention was made based on the above-mentioned circumstances, and its main purpose is to improve the seat height of this type of motorcycle without increasing the height of the seat or causing interference with other parts. The oil tank can be placed below, and even when supporting the vehicle body with the side stand and injecting lubricating oil into the oil tank, the lubricant can be filled until the tank is filled in the same way as when the vehicle body is supported with the main stand. The object is to enable oil injection and to stably display an indication of oil shortage.

The present invention will be described below based on the drawings. FIGS. 1 and 2 show an example of a motorcycle according to the present invention. The main components of the body frame of the motorcycle are a main pipe 12 and a down tube 13 fixed to a head pipe 11, and a back stay 14 fixed to the rear of the main pipe 12. As shown in FIG. 3, a fuel tank 20 is fixed to the front part, and a seat 30 and a carrier 40 are fixed to the rear part. This sheet 30
The main pipe 12 is connected to the main pipe 12 via a support fitting as described later.
installed above. On the other hand, an oil tank 5 is provided below the seat 30 above the main pipe 12.
0 is fixed. Further, a bracket 14a is provided at the lower end of the backstay 14.
A side stand 15 is attached to the left side of the bracket 14a so as to be able to rise and fall.

As shown in FIGS. 4 and 5, the oil tank 50 includes a tank body 51 fixed on the main pipe 12 and extending to both left and right sides of the main pipe 12, and a recessed portion at the rear end of the tank body 51. 51
A rear bracket 52 provided in the center of a, and a front bracket 53 provided on the right side of the front end of the tank body 51.
It is composed of: This tank body 51
is formed into an oblong shape with a width wider than the vehicle body frame and slightly narrower than the bottom plate 31 of the seat 30, and a flat upper surface spanning the entire width is formed at the rear, and a left side convex portion 51b of the front end is provided with an engine. An oil supply hole portion 51c is formed for supplying oil to the oil supply hole 51c, etc. Further, on the upper surface of the rear portion of the tank body 51, an oil inlet 51d is formed at the right end thereof, and an oil detection port 51e is formed at the left thereof, both of which protrude somewhat upward from this upper surface. These inlets 5
1d and the detection port 51e are closed by a cap 54 and an oil detector 55. The oil tank 50 has a front bracket 1 with a front bracket 53 provided on the rear right side of the main pipe 12.
The rear bracket 12 is attached to the main pipe 2a and the rear bracket 52 is provided at the rear center of the main pipe 12.
By attaching it to b, as shown in Figure 3,
Main pipe 12 which is the upper end member of the vehicle body frame
and the bottom plate 31 of the seat 30, and is attached to the main pipe 12.

Note that the seat 30 has an engagement member 32 having an engagement recess 32a in the lower front part of the seat bottom plate 31.
is provided in a protruding manner, and a mounting bolt 33 is provided in a protruding manner at the rear of the lower surface thereof. On the other hand, the main pipe 12 is provided with a protruding front support member 12d that horizontally supports the engagement pin 12c, and a rear support member 12e that supports the rear portion of the lower surface of the seat bottom plate 31 is protruded from the rear end thereof. There is. As a result, sheet 3
0 is supported at the rear of the main pipe 12 by engaging the engagement recess 32a of the engagement member 32 with the engagement pin 12c and inserting the mounting bolt 33 into the insertion hole of the rear support member 12e, and the mounting nut 12f
It is fixed in the state shown in FIG. 3 by screwing it onto the mounting bolt 33. Therefore, if the mounting nut 12f is removed, the seat 30 will be attached to the main pipe 1.
2, and it becomes possible to inject lubricating oil into the oil tank 50. Further, a recess 31a is formed in the lower front part of the seat bottom plate 31, and this recess 31a is covered with a removable opening/closing plate 31b to form a tool box.

By the way, in the motorcycle thus configured, the side stand 15 is attached to the left side of the vehicle body frame, while the oil inlet 51d is located at the right end of the oil tank 50. Therefore, when supporting the vehicle body with the side stand 15 and injecting lubricating oil into the oil tank 50, as shown in FIG.
Located at the top of 0. As a result, by injecting lubricating oil through the oil inlet 51d, it is possible to reliably fill the oblong oil tank 50 with a flat upper surface over the entire width.
Note that the oil level near the oil detector 55 located on the left side will rise somewhat due to the tilting to the left side due to the use of the side stand 15.
Even if the side stand 50 is used when the oil level has fallen close to the detection limit, the oil detector 55 will not operate due to the tilt of the vehicle body.

Note that this embodiment is based on one embodiment of the present invention, and the present invention can of course be applied to a motorcycle equipped with an oil tank fixed below the seat and a side stand.
This can also be applied to motorcycles equipped with a main stand as well as a side stand.

In summary, the present invention provides a motorcycle in which an oil tank for storing lubricating oil is installed below a seat provided above a body frame, and a side stand is provided on one side of the body frame. The seat is formed into a horizontally elongated shape that is slightly narrower than the bottom plate and has a flat upper surface over almost the entire width, and is attached to the vehicle body frame, and the upper surface is attached to the end of the side opposite to the one side of the oil tank. The structure is characterized in that an oil inlet is provided that protrudes further than the above, and an oil detector is provided on the same side as the one side. According to this, the oil inlet and oil detector are placed on the left and right, so the front and rear length of the oil tank can be shortened, and there is no interference with other parts, and the height of the seat can be reduced. The oil tank can be placed below the seat without increasing the height. In addition, the oil tank has an oblong shape with a width slightly narrower than the bottom plate of the seat and a flat top surface across its entire width, and an oil inlet is provided at the end of the top surface on the side opposite to the side stand installation side. Although the space under the seat can be used efficiently, when injecting lubricating oil while supporting the vehicle body with the side stand, the oil inlet can be positioned at the top of the oil tank. can be filled up.
Furthermore, the oil level near the oil detector will rise slightly due to the tilt of the vehicle due to the side stand, so even if the oil tank is used when the oil level has fallen close to the detection limit, this will not cause the oil detector to operate. Therefore, the use of the side stand will not indicate the lack of oil and give the user a strange feeling.

[Brief explanation of drawings]

FIG. 1 is a side view showing an example of a motorcycle according to the present invention, FIG. 2 is a rear view of the motorcycle, and FIG.
The figure is an enlarged rear longitudinal sectional side view of the motorcycle showing the installation state of the oil tank, Figure 4 is an enlarged plan view of the oil tank, Figure 5 is an enlarged side view of the oil tank, and Figure 6 is an enlarged side view of the motorcycle. It is a rear view with a partially broken part omitted. Explanation of symbols 12...Main pipe, 14...
Back stay, 15...Side stand, 30...
... seat, 31 ... bottom plate, 50 ... oil tank, 51 ... tank body, 51d ... oil inlet, 52 ... rear bracket, 53 ... front bracket, 55 ... oil detector.

Claims (1)

[Claims] 1. In a motorcycle in which an oil tank for storing lubricating oil is installed below a seat provided above the body frame and a side stand is provided on one side of the body frame, the width of the oil tank is slightly larger than the bottom plate of the seat. The oil tank is formed into an oblong shape having a narrow width and a flat top surface over almost the entire width, and is attached to the vehicle body frame, and an oil tank is provided at the end of the side opposite to the one side, and protrudes upwardly from the top surface. 1. A motorcycle, comprising: an injection port; and an oil detector provided on the same side as the one side.