JPH03260366A - Air cleaner for motorcycle - Google Patents

Abstract

PURPOSE:To facilitate work of mounting/removing a cleaner element by providing a narrow part, in which upper and lower widths are narrowed, in an intermediate part between intake and outlet ports on both sides of a cleaner box and inserting the cleaner element from an insertion port opened to the side surface of this narrowed width part. CONSTITUTION:An intake port 2 and an outlet port 3 are provided on both sides of a cleaner box 1 after molding it into a box shape with synthetic resin or the like. A narrowed width part 5, whose upper and lower widths are narrowed, is provided in an intermediate part between these intake and outlet ports 2, 3, and an element insertion port 6 is opened to one side surface of this narrowed width part 5. A cleaner element 7 of elliptic section is inserted into the cleaner box 1 from this insertion port 6 so as to close the narrowed width part 5 and an element cap 8, mounted to the element 7, is tightly mounted to the periphery of the element insertion port 6 by a machine screw 10 or the like. In this way, blinding of the element 7 is decreased by increasing the volume of the dirty side of the cleaner box 1 while facilitating mount/removal work of the element 7.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an air cleaner for a motorcycle that supplies intake air from which dust is removed to an installed engine.

[Conventional technology]

Engines installed in motorcycles have an air cleaner connected to the carburetor, and the intake air from which dust has been removed by the air cleaner flows to the carburetor, preventing dust from being sucked into the engine. This prevents the cylinders from wearing out.

As shown in Fig. 5, the air cleaner has an inlet B and an outlet hole C on both sides of a cleaner box A, and a cleaner element D is attached to the inside of the outlet hole C with a wing nut E. An opening F is provided on the side through which the cleaner element D can be inserted and removed.
I try to cover it with. For example, JP-A-1-208
See Publication No. 558. In addition, as shown in FIG. 6, there is also one in which a cylindrical cleaner element K is inserted into the opening J of the cleaner box H, and a suction port is provided at the opening of the cleaner element.

[Problem to be solved by the invention]

In the case shown in Fig. 5, when replacing or cleaning the cleaner element D, first remove the cap G, put your hand inside the cap G, remove the wing nut E, and remove the cleaner element D. Since the size of F is limited, workability is poor, and there are many attachment/detachment points, which is inconvenient and time-consuming. Compared to this, the one in Figure 6 has a cylindrical cleaner element K that can be attached and detached along with the suction opening.
Although it is easier to attach and detach the cleaner element, dust accumulates inside the cylindrical cleaner element, increasing ventilation resistance and reducing output.
There is the inconvenience of having to clean the

In view of the above, the present invention provides an air cleaner for a motorcycle in which the cleaner element can be easily attached and detached, the volume of the dirty side of the cleaner box is large, the cleaner element is less likely to be clogged, and the reduction in output can be reduced. The purpose is to

(Means for solving all problems) In order to achieve the above object, the present invention provides a narrow part with a narrow vertical width in the middle part between the suction port and the outlet hole provided on both sides of the cleaner box. Open an element insertion opening on the side of the narrow part, insert the cleaner element from the element insertion opening into the cleaner box so as to cover the narrow part, and tighten the element cap around the element insertion opening with screws. It's because I did it.

[Effect]

The intake air that enters the cleaner box from the intake port has dust removed when it passes through the cleaner element that closes the narrow portion, and can send the dust-free intake air to the outlet hole. The dirty side of the cleaner box on the artificial side of the cleaner element has a large volume, allowing dust to accumulate at the bottom, reducing clogging of the cleaner element, reducing output drop, and increasing the cleaning interval of the cleaner element. . The cleaner element can be pulled out to the side together with the element cap, and the cleaner element can be easily attached and detached by attaching and detaching the screws of the element cap. Also, since the cleaner element is directly pulled out to the outside, work efficiency is good.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 4.

The cleaner box 1 is made of synthetic resin or the like into a box shape, and has an inlet port 2 and an outlet port 3 on both sides.
The outlet hole 3 has an inlet tube 4 connected to the vaporizer.
Concatenate. In the cleaner box 1, in the middle part,
A narrow part 5 with a narrow vertical width is provided. The narrow portion 5 is preferably provided by curving the lower surface of the cleaner box 1 upward.

Then, an element insertion port 6 is opened on one side of the narrow portion 5. The cleaner element 7 is shaped like a tip with an oval cross section, and is attached to the element cap 8 with adhesive or the like. The cleaner element 7 is provided with a punching plate 9 on the inside to prevent it from deforming. The cleaner element 7 is inserted into the cleaner box 1 from the element insertion port 6 so as to close the narrow portion 5, and the element cap 8 is fastened around the element insertion port 6 with screws 10 or the like. The cleaner element 7, together with the element cap 8, can be removed laterally by attaching and detaching screws 10, or can be attached and detached by being inserted from the side. The intake air that enters through the intake port 2 is purified by removing dust from it in the cleaner element 7. Dust adhering to the cleaner element 7 can fall to a low place on the front side of the cleaner element 7 due to vibrations of the vehicle body, thereby reducing clogging.

The cleaner element 7 has an elliptical cross section,
It may be plate-shaped in the vertical direction.

〔Effect of the invention〕

As explained above, since the present invention is configured as described above, the cleaner element can be easily attached and detached by inserting and removing it together with the element cap into the element insertion opening of the cleaner box, and the element cap is located on the side of the cleaner box. Therefore, workability is good. Then, the dust accumulates on the lower side of the dirty side of the cleaner element, which reduces clogging of the cleaner element, reduces output drop, and reduces the frequency of cleaning of the cleaner element. Further, if the cleaner element has an elliptical cross section, the element becomes double, and the cleaning efficiency can be increased.

[Brief explanation of drawings]

1 to 4 show an embodiment of the present invention, in which FIG. 1 is a partially cutaway side view, FIG. 2 is a sectional view taken along the line X--X in FIG. 1, and FIG. FIG. 4 is an X-ray sectional view, FIG. 4 is an exploded perspective view, FIG. 5 is a vertical side view showing a conventional example, and FIG. 6 is a partial vertical side view showing another conventional example. 1...cleaner box, 2...intake port, 3...
- Outlet hole, 5... Narrow part, 6... Element insertion port, 7... Cleaner element, 8... Element cap.

Claims (1)

[Claims] A narrow part with a narrow vertical width is provided between the inlet and outlet holes provided on both sides of the cleaner box, an element insertion port is opened on the side of the narrow part, and the cleaner element is inserted through the element insertion port. An air cleaner for a motorcycle, characterized in that an element cap is inserted into a box so as to close a narrow part, and an element cap is tightened around the element insertion opening with screws or the like.