JPS593184Y2 - Air cleaner device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an air cleaner device for a carburetor of an internal combustion engine (mainly for portable working machines).

Engines for portable working machines such as chain saws, lawn mowers, and chemical dusters must be small and lightweight for ease of operation, so air cleaners for vaporizers and the like are also very compact.

Therefore, since the intake area is small, the carburetor air cleaner becomes clogged in a short period of time, which prevents proper combustion of the engine, resulting in a decrease in output and an increase in fuel consumption.

The present invention seeks to prevent these drawbacks with a simple device.

A detailed explanation will be given below based on examples.

Fig. 1 is a vertical sectional view of the air cleaner device according to the present embodiment, Fig. 2
1, FIG. 3 is a vertical cross-sectional view of another embodiment, and FIG. 4 is a Y--Y cross-sectional view of FIG. 3.

As shown in FIGS. 1 and 2, an air cleaner main body 6 is attached to the carburetor 1, a mesh filter medium 3 is arranged on the outside air side opening surface 6a of the air cleaner main body 6, and the air cleaner main body is It is tightly fixed to 6.

Further, a brush 4 having a radial handle 4a is rotatably supported 8 at the center of the filter medium 3, and a receiving metal fitting 4b is provided at one end of the handle 4a. It is engaged with an interlocking arm 5a extending from the air cleaner device 2.

According to the proposed structure, when the choke lever 5 is operated at the time of starting the engine, the receiving bracket 4b is connected via the interlocking arm 5a.
A rotational action is added to the radial handle portion 4a, and the radial handle portion 4a rotates around the shaft 8.

For this reason, the brush 4 attached to the handle slides on the outside air side surface of the filter medium 3 to remove dust and the like adhering to the surface of the filter medium 3.

In addition, FIGS. 3 and 4 show another embodiment in which a handle 4a is pivoted around the filter medium 3. When the choke lever 5 is operated, the handle operates like a wiper, and the brush 4 moves around the filter medium. Clean the surface of 3.

Generally, air cleaner devices in engines are instructed to be cleaned periodically, but this is a tedious task for users, so they tend to neglect it.

In addition, if cleaning is performed improperly, foreign matter may get into the cylinder or crank chamber, causing malfunctions or accidents.

In order to eliminate these troubles, the present invention focuses on the choke device, which is frequently used when starting the engine, and makes it possible to automatically clean the air cleaner by operating the choke lever, without requiring the user's intervention. This also leads to improved engine durability.

[Brief explanation of the drawing]

FIG. 1: A vertical sectional view of an air cleaner device according to an embodiment of the present invention. FIG. 2: Cross-sectional view taken along the line XX in FIG. 1. FIG. 3: A vertical sectional view of another embodiment. FIG. 4: YY cross-sectional view in FIG. 3. 1... Carburizer, 2... Bent air cleaner device, 3
... Curved wood, 4... Brush, 5... Curved choke lever 5a... Interlocking arm.

Claims (1)

[Scope of utility model registration request] Air cleaner device 2 attached to the front of the intake port of the carburetor 1
A brush 4 is rotatably supported and attached to the filter medium 3, and a receiving metal fitting 4b is provided at one end of the handle 4a of the brush 4, and the receiving metal fitting 4b is connected to the choke lever of the carburetor 1. The air cleaner device is engaged with an interlocking arm 5a extending from the choke lever 5, and cleans the surface of the filter medium 3 by rotating the brush 4 when the choke lever 5 is operated.