JPH1014832A - Filter for vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure that a folding operation can be achieved with a weak force while preventing splashing of dust and to secure the strength of a filter support by separating the filter support into separate members, one for bending and the other for retaining strength, and connecting these members close together using an expanding member. SOLUTION: A filter support 13 for a paper bag filter 12 is put on a filter support plate and a filter receiving part at the end of an opening in a dust case, and a dust case lid is closed from above so that the filter support 13 is closely secured to a suction hole. A folding line 16 is formed over the filter support 13 and along a centerline connecting the filter support plate to the filter receiving part, and a fitting slit 17 which holds the filter support 13 closed when folded at the folding line 16 is formed in the edge of the filter support. Also, the filter support 13 is separated into a folding support 18 to be folded and a fixed support 19 bonded to a paper bag 14, and a freely expanding member 20 is closely connected between the folding support 18 and the fixed support 19.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a filter for a vacuum cleaner.

[0002]

2. Description of the Related Art Conventionally, a method of sealing a paper bag filter at the time of disposal is a method of integrating a filter with a filter support, bending a plate protruding from the outer periphery of the support, and covering the filter, or protruding the support to provide a single point thereon. Provide a substantially elliptical lid that supports
There is a method in which the lid is displaced like a pendulum on the surface of the support, and a method in which thin paper serving as the lid is folded inside the support and pulled out at the time of disposal to close the lid. The former two of the conventional examples have a large filter support overhang, which is disadvantageous for downsizing the vacuum cleaner. Further, the latter example has a drawback that the bent lid causes irregularities on the surface of the support, and the intake air leaks when dust is absorbed.

Therefore, a method of providing a folding line on the surface of the support and bending and holding the support itself at the time of disposal is conceivable.

[0004]

In the method of providing a folding line on the surface of the support and bending the support itself at the time of disposal, it is difficult to bend the support when the support is thickened to secure the strength.
In addition, there are problems such as leakage of intake air and dust due to deformation of the fold line portion, a problem that the dust is not completely closed in a clogged state, a strong bending force is required, or a bag is broken.

[0005]

In order to maintain the compatibility with the vacuum cleaners already on the market, the size of the current filter support cannot be increased. It is necessary to separate the part to be folded and the part to be the lid.

[0006] Therefore, the support is separated into a lower layer side which can be easily bent by providing a fold line, so that air and dust do not leak when the upper layer is folded. The above-mentioned problem has been solved by tightly connecting the upper and lower layers with a bellows-like or rubber-like elastic member.

The support is separated into two layers, and the upper and lower layers are tightly connected to each other with a bellows-like or rubber-like elastic member so that the thickness of the lower layer can be increased to secure the strength. The body is not deformed and the airtightness is improved. Also, at the time of disposal, the upper layer folding plate can be made thinner, so that the folding property is improved and the work is easier, and the layer on the folding side is connected to the paper bag via an elastic member, and the bag is broken at the time of folding. Nor. Therefore, both sealing performance and workability can be achieved.

[0008]

FIG. 1 shows an embodiment of the present invention.

FIG. 2 is a sectional view of an example of the vacuum cleaner.
The vacuum cleaner 1 includes a main body case 2 and a dust case 3, and an electric blower 4 is built in the main body case 2. A protective filter 5 is provided in front of the electric blower 4 in the main body case 2, and an exhaust port 7 is provided in a rear stage of the exhaust chamber 6 behind the main body case 2.

The dust case 3 has a box-like shape with an open upper surface, and is closed except for the air inlet 9 by closing the dust case lid 8 from above. At the end of the opening of the dust case 3, a filter support plate 10 and a filter receiving portion 11 are provided so as to face each other. When the filter support 13 of the paper bag filter 12 is mounted thereon, and the dust case lid 8 is closed from above, The filter support 13 is tightly fixed to the intake port 9.
When the operation of the vacuum cleaner 1 is started, the electric blower 4 sucks the air in the dust case 3, and the paper bag 14 of the paper bag filter 12 expands in the dust case 3 due to the pressure difference with the air inlet 9.
The garbage sucked from the air inlet 9 is captured.

FIG. 3 is a view showing the filter support 13 of the paper bag filter 12 placed on the filter support plate 10 and the filter receiving portion 11 as viewed from the front of the filter opening 15. In this example, a fold line 16 is provided on the filter support 13 along a center line connecting the filter support plate 10 and the filter receiving portion 11 so as not to contact the air inlet on the main body side. Has an engagement slit 17 for holding the filter support 13 in a closed state when the filter support 13 is folded at the folding line 16. When the filter support 13 is viewed from this angle, the area is the same between the conventional example and the case where the present invention is applied, so that the main body dimensions of the vacuum cleaner 1 do not need to be changed, and the compatibility of the filter is maintained. It is.

FIGS. 4 and 1 show the filter support 13 of FIG. 3 folded after the operation of the vacuum cleaner 1. FIG. 4 shows a conventional example, and FIG. 1 shows an application example of the present invention. In FIG. 4, when the filter support 13 is folded, the paper bag 14 adhered and fixed to the support 13 is also pulled, and when the dust is packed in the paper bag, the paper bag 14 may be broken by applying force. .
In contrast, in FIG. 1, the filter support 13 is divided into a bent support 18 on the side to be bent and a fixed support 19 on the side adhered and fixed to the paper bag 14, so that the paper bag 14 is pulled and torn. There is no. A stretchable member 20 is tightly connected between the bent support 18 and the fixed support 19, and when the bent support 18 is folded, dust is removed from a gap between the bent support 18 and the fixed support 19. To prevent flooding. The elastic member 20 also functions as a sealing material that presses the bent support 13 against the intake port 9 when the bent support 13 is not bent.

FIG. 5 shows a state in which the filter support 13 of FIG. 1 is completely closed. The bent plate is held in a closed state by fitting the slit 17. Of course, as shown in FIG. 6, the slit 17 may be held by a method other than the fitting, for example, the adhesive tape 21 or the like.

[0014]

According to the present invention, the filter support is divided into separate members for bending and for maintaining strength, and the space between them is tightly connected by an elastic member, so that the folding operation is weak while preventing scattering of dust. And the strength as a support can be secured. In addition, when the filter support is mounted on the vacuum cleaner, the elastic member plays a role of packing, and the filter support more securely adheres to the intake port.

[Brief description of the drawings]

FIG. 1 is a perspective view of a paper bag filter according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the vacuum cleaner.

FIG. 3 is a perspective view of a filter support set in the vacuum cleaner.

FIG. 4 is a perspective view of a conventional paper bag filter.

FIG. 5 is a perspective view of a paper bag filter according to a second embodiment of the present invention.

FIG. 6 is a perspective view of a paper bag filter according to a third embodiment of the present invention.

[Explanation of symbols]

12: paper bag filter, 13: filter support, 14: paper bag, 15: filter opening, 16: folding line, 17: slit, 18: bent support, 19: fixed support, 20: elastic member.

Claims (1)

[Claims] 1. A partially open air-permeable paper bag to be attached to a support of a paper bag filter of a cleaner body, and a filter support made of a non-permeable material adhered and fixed to the opening of the paper bag. In the paper bag filter, the supporting portion of the cleaner body supporting the filter support is composed of a filter support plate and a filter receiving portion, and the filter support is made of a two-layer non-permeable cardboard flat paper. It is composed of a face plate and a stretchable member closely connected therebetween, and one of the two-layer plates is adhesively fixed to a paper bag and has a thickness sufficient to maintain the strength of the support, and the other has a folding line. A filter for a vacuum cleaner, comprising: means for holding the bent state, wherein the filter is provided so as not to be in contact with the air inlet on the main body side.