JPH0516854A - Oil tank device for motorcycle - Google Patents

Abstract

PURPOSE:To provide a motorcycle oil tank device that is able to check the presence of oil simply in a convenient manner by using a part of a pipe-make frame as an oil tank for convenience's sake, while connecting a sub-tank, whose inside oil is seen from the outside, to a lower side of this oil tank, and looking at this sub-tank. CONSTITUTION:This oil tank device is featured that a part of a pipe-make frame 1 is hermetically sealed while an oil filler 3 is installed there, forming an oil tank 4 in this way, and a sub-tank 6, whose inside oil is seen from the outside, is connected to an interval between a lower end of the oil tank 4 and an oil pump of an engine 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil tank device for a motorcycle.

[0002]

2. Description of the Related Art A two-cycle engine mounted on a motorcycle is an oil pump in which lubricating oil in an oil tank is interlocked with the engine, and separates fuel and lubricating oil to be supplied to a crank chamber of the engine for lubrication. A separate refueling system is used to supply

In an off-road motorcycle, which is particularly required to be lightweight and compact, an oil tank is used as a part of a pipe frame.
It does not take up much space to install the oil tank. See, for example, JP-A-61-110684.

[0004]

When a part of the frame is formed in the oil tank, it is possible to save a special space for the oil tank. However, it is inconvenient to check how much oil is left because the inside of the oil tank cannot be seen. For this reason, a level gauge for notifying the remaining amount in the oil tank and a detector for notifying by a pilot lamp are mounted, but it is difficult to mount it in the pipe of the frame, and the manufacturing cost is high.

In view of such a point, the present invention makes a part of a pipe frame an oil tank, and connects a sub tank on the lower side of the oil tank from which oil from the inside can be seen, and by looking at the sub tank, The purpose of the present invention is to obtain a convenient oil tank device for a motorcycle, in which the presence or absence of oil can be easily checked.

[0006]

In order to achieve the above object, an oil tank device for a motorcycle according to the present invention is formed in an oil tank by sealing a part of a frame made of pipe and providing an oil supply port. The sub tank is connected between the bottom of the oil tank and the oil pump of the engine so that the oil inside can be seen from the outside.

[0007]

[Operation] By looking at the sub-tank when driving the motorcycle, it can be checked at a glance whether or not the lubricating oil is contained in the sub-tank. Therefore, it is possible to prevent the oil from running out. In addition, this eliminates the need to provide a level gauge or an oil sensor in the oil tank, which can reduce the cost.

[0008]

Embodiments of the present invention will be described below with reference to FIGS. The frame 1 is made of a pipe material so as to be appropriately welded and coupled to each other, and the main frame 2 portion using the thickest pipe material is hermetically sealed to form an oil supply port 3 at an upper end to form an oil tank 4. The outflow pipe 5 is welded to the lower end. The sub-tank 6 is a small-sized one having a capacity of about one cup, and is made of transparent or translucent synthetic resin. The inlet 7 and the outlet 8 are provided at the upper and lower ends, and the sub-tank 6 is formed by blow molding. Oil is visible and is attached to the lower end of the fuel tank 9 with screws. The sub tank 6 is connected between the outflow pipe 5 of the oil tank 4 and the oil pump 11 of the engine 10 by using a hose 12.

The lubricating oil in the oil tank 4 passes through the sub tank 6 and is sucked by the oil pump 11. The sub-tank 6 is designed so that the lubricating oil on the inside can be seen from the outside. Therefore, by visually confirming the lubricating oil in the sub-tank 6 from the outside, it is possible to prevent the lubricating oil from running out. In particular, since the amount of lubricating oil used is small, the lubricating oil will not run out when the lubricating oil in the sub tank 6 is checked. Since it is possible to confirm the presence or absence of lubricating oil in the sub tank 6, it is not necessary to provide a level gauge or an oil sensor in the oil tank 4, and the cost can be reduced.

[0010]

As described above, since the present invention is configured as described above, the sub tank connected between the oil tank and the oil pump of the engine is made of a transparent material or a semitransparent material, Since it is possible to check the presence or absence of lubricating oil inside, it is possible to prevent the lubricating oil from running out by visual inspection of the sub tank. And
Since it is possible to check the presence or absence of lubricating oil in the sub tank, it is not necessary to attach a level gauge or oil sensor to the oil tank, and it is possible to reduce costs. or,
The capacity of the lubricating oil can be increased by the capacity of the sub tank.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a side view of a sub tank portion showing an embodiment of the present invention.

FIG. 3 is a front view of a sub tank portion showing an embodiment of the present invention.

[Explanation of symbols]

 1 Frame 3 Filling Port 4 Oil Tank 6 Sub Tank 10 Engine 11 Oil Pump

Claims (1)

Claim: What is claimed is: 1. A pipe frame is hermetically sealed and an oil supply port is provided to form an oil tank. An oil tank device for motorcycles, characterized by connecting a sub tank in which oil can be seen.