JPS6140413B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dust collection box for a vacuum cleaner, and an object of the present invention is to improve the separation of dust when disposing of garbage.

As shown in Figure 1, the dust collection box 1 of conventional vacuum cleaners is made of synthetic resin materials such as ABS and polypropylene, which have extremely high specific resistance. It is easy to be charged with static electricity due to friction with the inner wall surface, and it has a property that it is difficult to leak to other things because of its poor conductivity.This causes fine dust to adhere to the inner wall surface of the dust collection box and prevent it from being collected when disposing of garbage. This has the disadvantage of making it difficult to separate the dust from the box.

The present invention eliminates the above-mentioned conventional drawbacks, and embodiments thereof will be described below with reference to the accompanying drawings.

In Figures 2 to 4, 2 is the main body of the vacuum cleaner with a built-in electric blower 3, 4 is the handle of the main body 2,
5 is a dust collection box detachably attached to the main body 2, and is made of synthetic resin such as ABS, and the inner wall surface is coated with a metal thin film 6 with a resistivity of 10 ⁹ (Ωcm) or less. . The metal thin film 6 is made of, for example, copper or nickel film. Reference numeral 7 indicates an intake port for attaching a flexible hose 8 in a detachable manner, 9 indicates a dust backflow prevention valve for preventing dust in the dust collection box 5 from going outside, and 10 indicates 1 for capturing coarse dust. A filter storage box containing a secondary filter 11 and a secondary filter 12 for capturing fine dust, 1
3 is a filter holder that holds the secondary filter 12 together with the filter storage box 10, and 14 is a packing that holds the filter storage box 10 and the filter holder 13 and prevents air leakage. And a filter storage box 10, a filter holder 13, and primary and secondary filters 11 and 12.
is detachable from the dust collection box 5. 15 is a handle of the dust collection box 5, 16 is a buckle for attaching the dust collection box 5 to the main body 2, 17 is a front wheel, and 18 is a rear wheel.

In the above configuration, most of the coarse dust and some of the fine dust among the dust sucked in from the air intake port 7 with the air are captured by the primary filter 11, and the dust that has passed through the primary filter 11 is then captured by the secondary filter 12. Only the air captured and purified is sucked into the electric blower 3.

At this time, the sucked dust rubs against the thin film 6 on the inner wall of the dust collection box 5, but the thin film 6 has a low resistivity.
Since it is made of a metallic material with a resistance of 10 ⁹ (Ωcm) or less, almost no static electricity is generated. In addition, since the surface roughness is better than that of resin, there is no need to worry about fine dust adhering to the surface of the thin film 6 on the inner wall of the dust collection box 5, which has the effect of making it easier to separate dust when disposing of garbage, and at the same time preventing static electricity. Since it is hard to clean, there is also the effect that there is no fear of fine dust adhering to the outer wall surface of the dust collecting box 5 and contaminating the surface. Furthermore, since the inner wall surface of the dust collection box 5 is made of metal, the surface has an increased hardness and is less susceptible to scratches.

In the above example, a thin film of a metallic substance was applied to the inner wall of the dust collection box, but this may be done by any method such as resin plating or pasting metal foil, or by applying a highly conductive paint, etc. You may also apply
In short, it is sufficient that the dust collection box is hard to generate static electricity and is hard to be charged.

As described above, according to the present invention, by preventing the generation of static electricity and preventing electrification in the dust collection box of a vacuum cleaner, dust can be easily removed from the inner wall of the dust collection box and garbage can be disposed of cleanly. It is effective. Furthermore, since the dust collection box itself is made of synthetic resin, it has excellent effects such as high cost and no restrictions on shape.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of a conventional dust collection box when disposing of garbage.
FIG. 2 is a sectional view of a vacuum cleaner according to an embodiment of the present invention, FIG. 3 is a partially enlarged sectional view of a dust collection box, and FIG. 4 is a sectional view of the dust collection box when garbage is disposed of. 6... Conductive material layer (thin film).

Claims (1)

[Scope of Claims] 1. A dust collection box for a vacuum cleaner, characterized in that a conductive material layer is applied to the inner surface of a wall made of synthetic resin. 2. The dust collection box for a vacuum cleaner according to claim 1, wherein the resistivity of the conductive material layer is set to 10 ⁹ (ΩCm) or less.