JPS6028372Y2 - vacuum cleaner - Google Patents

Description

[Detailed description of the invention] The present invention relates to improving a vacuum cleaner, and aims to prevent coarse dust from entering the coarse dust chamber by ensuring tightness between the vacuum cleaner and the coarse dust chamber in the multi-layer container. That was the purpose.

Generally, the coarse dust chamber and fine dust chamber of a vacuum cleaner are formed on the outer periphery of a filter cover 33 of a dust collector 32 disposed inside a storage container 31, as shown in FIG.
A portion 34 facing most of the outer periphery of the filter cover 3 is a coarse dust chamber, and a portion 35 facing the lower opening 33' of the filter cover 33 is a fine dust chamber.

However, a gap t is created between the lower end of the filter cover of the dust collector 32 disposed inside the vehicle storage container 31 and the inner wall of the vehicle storage container, and the coarse dust accumulated in the coarse dust chamber 34 flows from this gap t into the fine dust chamber. There was a problem in that the dust was sucked into the filter cover 35 and adhered to the main filter 36 in the filter cover, resulting in a significant drop in dust collection performance.

The present invention eliminates such conventional drawbacks, and one embodiment thereof will be described below with reference to the drawings.

In the figure, 1 is the main body of the vacuum cleaner (hereinafter referred to as the main body)
, 2 is an electric blower built into the main body 1, 3 is a rear wheel, 4 is a front wheel, 5 is a dust collection container detachably connected to the main body 1, and the front part has a connection port 5a to which a hose (not shown) is connected. is the provision.

6 is a handle for rolling the vehicle storage container 5; 7 is the main body 1 and the vehicle storage container 5;
The buckle 8 is a support frame for the dust collection container A built into the vehicle storage container 5, and a tightening rubber 9 is attached to the outer periphery of the support frame for air-tighting the vehicle storage container 5 and the main body 1. be.

This support frame 8 includes a front frame 10a of the main filter 10.
The main features are a bearing 8a that supports the rotating shaft 10b and a ventilation hole 8b that are integrally formed with the rotary shaft 10b.

11 is a gear attached to the other end of the rotating shaft 10b, and 12 is a clutch 1 that is linked to the rotation of a cord reel (not shown).
A drive gear 14 meshes with the gear 3 and transmits its driving force to the gear 11, and a dust remover 14 has a bearing 8a fixed thereto, and repels the wall of the main filter 10.

Reference numeral 15 denotes a dust-tight packing, which is press-fitted into a rib 10d protruding from the rear frame 10c of the main filter 10, and is rotatably pressed against the support frame 8 to maintain airtightness.

16 is a pre-filter that separates coarse dust from fine dust.

17 is a bottomless cylindrical filter cover that covers the outer periphery of the main filter 10, and 18 is a coarse dust tight packing attached to the opening edge of the filter cover 17, which is in contact with the outer periphery of the pre-filter 16 and closes the main filter. This prevents coarse dirt from entering the 10 side.

Reference numeral 19 denotes a rib integrally formed on the wall surface of the multi-layer container 5 so as to be positioned in front of the pre-filter 16 at an interval of about 0 to 5rIrIn, and when the pre-filter 16 rotates, a relative movement is caused to remove the pre-filter. It is designed to remove coarse dust attached to -16.

20 is a fine dust chamber formed below the lower opening 17a of the filter cover 17, 21 is a positioning rib formed on the upper surface of the filter cover 17 facing this fine dust chamber 20,
When the dust collector A is attached to the multi-layer container 5, the filter cover 17 is brought into pressure contact with the lower wall surface of the multi-layer container 5.

In the above configuration, the ribs 21 provided on the upper part of the filter cover 17 come into contact with the upper wall surface of the multi-layer container 5 and press the filter cover 17 downward.

Therefore, the lower opening edge of the filter cover 17 comes into pressure contact with the wall surface of the multi-layer container 5 as shown in FIG. I come to do it.

Further, in the dust collector of this embodiment, in which one end of the filter cover 17 is opened and the pre-filter 16 is covered in the opening, the lower part of the filter cover 17 is normally connected to the several-layer container 5 even if there is no rib. Although the filter cover 17 is placed in pressure contact with the lower wall surface, the entire filter cover 17 is lifted upward, and a gap is created between the packing 18 of the filter cover 17 and the pre-filter 16, and the coarse dust becomes fine dust. Although there is a concern that the filter cover 17 may enter the room, the rib 21 presses the filter cover 17 downward, so there is no gap between the filter cover 17 and the pre-filter 16, as described above.

In the above embodiment, the ribs 21 are provided on the filter cover 17, but they may be provided on the wall side of the multi-layer container 5 as shown in FIG.

As explained above, according to the present invention, since the space between the fine dust chamber and the coarse dust chamber can be reliably tightened, the coarse dust in the coarse dust chamber can be prevented from being sucked into the fine dust chamber. , good dust collection performance can be maintained for a long period of time.

Further, since the tightness between the coarse dust chamber and the fine dust chamber is completely established, the air flows only from the pre-filter, and it is possible to prevent the air from flowing through the gap.

This eliminates the problem of fine dust that has been thrown up due to the turbulent flow from the gaps being thrown up and attached to the main filter again, which has the advantage of allowing high performance to be maintained for a long period of time.

Furthermore, by bringing the filter cover into contact with the multi-layer container, vibrations of the walls of the multi-layer container and the filter cover can be prevented, and there is also the effect that noise can be significantly reduced.

Additionally, if the entire surface of the filter cover is brought into contact with the inner surface of the several-layer container, the dust collection volume will be reduced, but in this invention,
This also has the advantage of being solvable.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a vacuum cleaner according to an embodiment of the present invention, Fig. 2 is a cutaway perspective view showing the main parts thereof, Fig. 3 is a sectional view taken along the line I-I in Fig. 1, and Fig. 4 5 is a cross-sectional view of a main part showing another embodiment, and FIG. 5 is a cross-sectional view showing a conventional example. 1... Body, 2... Electric blower, 5.
...Multi-layer container, A...Dust collector, 10.
...Main filter, 16...Pre-filter 17...Filter cover 21...
··rib.

Claims (1)

[Scope of utility model registration request] A filter cover that includes a main body with a built-in electric blower, a vehicle container detachably connected to the main body, and a dust collector detachably attached to the vehicle container, and covers a main filter of the dust collector. The lower part of the container is opened to form a fine dust chamber between it and the wall surface of the vehicle storage container, and the fine dust chamber and the upper part of the inner wall of the vehicle storage container opposite to the upper part of the filter cover corresponding to the fine dust chamber and the upper part of the filter cover are formed. This vacuum cleaner is provided with protrusions such as ribs, and these protrusions allow the lower opening edge of the filter cover to come into close contact with the lower part of the inner wall of the storage container.