JP3036286B2 - Dust collection filter for vacuum cleaner and vacuum cleaner using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust filter for a vacuum cleaner and a vacuum cleaner having the dust filter .

[0002]

2. Description of the Related Art Conventional dust collection filters for vacuum cleaners are:
As shown in FIG. 21 and FIG.
The sides 500a and 500b facing each other are overlapped and adhered to each other to form a tube, and the opening edges 500c and 500d of both sides of the tube are sealed. And a mouth plate 502 which is attached to the outer periphery of the inlet 500e provided with the dust inlet 502a and which communicates with the inlet 500e.

[0003] Also, a superposed portion 500f of the filter medium 500
During the sticking operation, the adhesive flows out from the one side end 500 g of the filter medium 500 located at the inner wall side of the bag-shaped body 501 to the non-overlapping portion side of the filter medium 500, and the leaked adhesive causes the bag-shaped body In order to prevent the inner walls 501 from adhering to each other, an adhesive 503 is applied only to the central portion of the overlapping portion 500f of the filter medium 500, and the filter medium 500 located on the inner wall side of the bag-shaped body 501 is applied. 500g on one side
The adhesive 503 applied to the overlapping portion 500f of the filter medium 500 is prevented from flowing outward. In other words, the bag-shaped body 501 is configured such that one side portion 500a of the filter medium 500 located on the inner wall side of the bag-shaped body 501 is a non-adhered portion 500h to which the stacked filter media 500 are not adhered. there were. Moreover, the non-sticking portion 500h is turned up by the airflow P flowing into the bag 501 from the inlet 500e of the bag 501 in the conventional dust filter for a vacuum cleaner.

[0004]

In recent years, in the field of vacuum cleaners, a tick is sucked into a suction opening with a strong suction force, and the mite is exterminated or penetrated into a carpet with long hair. In order to collect dust efficiently, the suction power of the vacuum cleaner is increased, and the amount of air flowing from the inlet provided in the bag-like body of the dust filter and the flow velocity are increasing.

[0005] Therefore, when the above-mentioned conventional dust-collecting filter for a vacuum cleaner is installed in a dust-collecting chamber of a vacuum cleaner having a high suction power and dust-collecting work is performed, the inlet 50 of the bag-like body 501 is moved.
As shown in FIG. 22, one side portion 500a of the filter medium 500, which is the non-sticking portion 500h on the inner wall of the bag-like body 501, is strongly turned and vibrated strongly by the airflow P containing dust flowing in from 0e. , An abnormal sound is generated and the filter medium 5
It has been found that a phenomenon occurs in which the adhered portion of the overlapping portion 500f of 00 is peeled off, and the blow-through of dust increases. This phenomenon was strongly exhibited when dust caught on one side 500a of the filter medium 500.

An object of the present invention is to provide a dust collecting filter for preventing a turn-up or a vibration of one side of a filter material which is a non-sticking portion of a bag-like body wall even when used in a vacuum cleaner having a high suction power. In addition, it is an object of the present invention to provide a dust collecting filter for a vacuum cleaner capable of preventing generation of abnormal noise and peeling of a sticking portion of a superposed portion, and a vacuum cleaner having the dust collecting filter .

[0007]

The above object is achieved by attaching at least two or more sheet-like filter media, and overlapping and adhering opposing sides of the outer filter media located outside to form a tube.
A mouth plate attached to the outer periphery of the inflow port provided in the bag-like body obtained by sealing the opening edges on both sides of the cylinder, and provided at the dust suction port communicating with the inflow port,
The overlapping portion of the outer filter medium, at least, one side edge of the outer filter medium located on the inner wall side of the bag-like body, in the vacuum cleaner dust collector filter is a non-sticking part, The inflow port and the overlapped portion of the outer filter medium are formed such that one side end of the outer filter medium, which is the non-sticking portion, is formed by the airflow flowing into the bag body from the inlet port. The inner filter medium, which is disposed so as to be pressed against the inner wall and is located on the outer wall side of the bag-like body, among the opposing sides of the inner filter medium located inside the outer filter medium. Is achieved by being located between the filter media in the non-sticking portion where the outer filter media are overlapped .

[0008]

[Action] When a dust filter is installed in the dust collecting chamber of the vacuum cleaner and the electric blower of the vacuum cleaner is rotated, the dust filter includes dust flowing into the bag from the inlet. Due to this air flow, swelling and dust are collected in the bag.

At this time, one side end of the non-sticking filter medium is pressed against the inner wall of the bag-like body by an air flow containing dust flowing into the bag-like body from the inflow port, and one side thereof is pressed. The end is pressed against the inner wall of the bag,
The turning and vibration of one side edge are suppressed, and the peeling off of the sticking portion and the generation of abnormal sound at the overlapping portion of the filter media are prevented.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

FIGS. 1 and 2 show an embodiment of a vacuum cleaner using the dust collecting filter of the present invention. The vacuum cleaner is detachably connected to the main body case 1 and the main body case 1. And a dust case 2. An electric blower 3 and a cord winding device 4 are provided in the main body case 1.

The main body case has a communication port 5 on a front wall 1a and an exhaust port 6 on a rear wall 1b. The electric blower room 7 and the cord winding device storage room 8 in the main body case 1 are partitioned by a partition plate 9. Dust case 2
Has a cylindrical shape as shown in FIGS.

On the front side of the dust case 2, a disposable dust collecting filter 10 (hereinafter referred to as a first dust collecting filter).
A first opening 2b is formed for taking the dust into and out of the dust collection chamber 2a. A filter support plate 11 is provided in the first opening 2b. The filter support plate 11 is rotatably provided so that the filter support plate 11 can be tilted forward with a support shaft 12 provided below the first opening 2b as a fulcrum.

The filter support plate 11 is set to have a size that can cover almost half of the first opening 2b.
A concave portion which comes out to the upper end on the surface of the filter support plate 11
At the upper left and right ends of the concave portion 11a, a stepped receiving portion 11b of the first dust filter 10 for receiving a mouth plate described later is formed.

The dust case lid 13 closes the first opening 2b from the outside of the filter support plate 11.
A lower part of the dust case is rotatably provided so as to fall forward with the support shaft 14 as a fulcrum. Dust case lid 1
3 is a hose connection port 1 for inserting a suction hose (not shown).
5 and a clamp 16 for fixing to the dust case
And

Behind the dust case 2, a main body case 1 is provided.
Are detachably connected. A plurality of filter holding ribs 2c are formed on the inner wall of the dust collection chamber 2a of the dust case 2.

FIGS. 3 to 10 show one embodiment of the first dust filter 10 of the present invention. 3 to 10
In the first embodiment, the bag-like body 17 of the first dust collection filter 10 has opposed sides 18a, 18 of a sheet-like filter medium 18 made of Japanese paper, synthetic paper containing resin, recycled paper, nonwoven fabric, or the like.
b. It is made by laminating and sticking together to form a cylinder, and sealing both side opening edges 17a, 17b of the cylinder.

On the front side of the bag-like body 17, an inflow port 17c is provided substantially at the upper center of the front side. Bag 1
Reference numeral 7 denotes a horizontally long cylindrical shape, and has bellows portions 17d and 17e along the longitudinal direction of the bag-like body 17. The sealing of the opening edges 17a, 17b on both sides is performed by opening the opening edges 17a, 17b.
Is folded back and adhered as shown in FIG.

Around the outer edge of the inlet 17c of the bag-like body 17,
A mouth plate 19 is attached by an adhesive. Mouth plate 1
Reference numeral 9 denotes a dust inlet which communicates with the inlet 17c of the bag-like body 17.
19a is provided. One side of the mouth plate 19 is
Project outward from the bellows portion 17a. The protruding portion is provided with a mounting hole 19b. The cover plate 20 for closing the dust suction port 19a is provided integrally with the mouth plate 19. The mouth plate 19 and the cover 20 are connected by a bending line 21. A groove 22 is provided between the left and right ends of the fold line 21 and the end of the mouth plate 19 in order to bring the fold line 21 closer to the dust suction port 19a. The covering lid 20 has two cut lines 2
0a forms a locking piece 20b. By locking the locking piece 20b to the dust suction port 19a,
The dust inlet 19 a is closed by the cover 20. The mouth plate 19 and the cover lid 20 are integrally formed of cardboard or other thick paper. Each of the dust inlet 19a and the inlet 17c is circular, and the diameter of the dust inlet 19a is larger than the diameter of the inlet 17c.

The first dust filter 10 is shown in FIGS.
As shown in FIG. 7, before use, the mouth plate 19 is folded rearward on the rear side to have a vertically long shape. In the bellows portions 17d and 17e of the bag-like body 17, the folding depth of the bellows closer to the mouth plate 19 is set to be larger than the folding depth of the remaining bellows.

The upper end 19c of the mouth plate 19 projects above the bellows portion 17d of the bag-like body 17. Lower end 2 of lid cover
0c protrudes below the bellows portion 17e of the bag-like body 17. In the overlapping portion 18c of the filter medium 18, at least the one side end 18d of the filter medium 18 located on the inner wall side of the bag-like body 17 is used as a non-adhering portion 18e. In this embodiment,
As shown in FIG. 9, the central portion of the overlapping portion 18c of the filter medium 18 is adhered with an adhesive 23 such as glue or a heat-sealing agent, and the opposite side edges 18a and 18b of the opposite side portions 18a and 18b of the filter medium 18
The d and 18f portions are not adhered. The dimension H in FIG. 9 indicates the width of the overlapping portion 18c, and the dimension h in FIG. 9 indicates the width of the adhesive 23, that is, the width of the sticking portion.

The overlapping portion 18c of the filter 18 is shown in FIG.
As shown in the figure, it is located on the back side of the bag-like body 17. The inlet 17c and The overlapping portion 18c of the filter medium 18, the air flow P flowing into the bag-like member 17 from the flow inlet 17c
By o, the one side end 18d of the filter medium 18, which is the non-sticking portion 18e, has a positional relationship of being pressed toward the inner wall 18g of the bag-like body 17. In other words, the filter medium 1 is prevented from being turned by the air flow Po flowing into the bag-like body from the inlet 17c.
The eight opposing sides 18a and 18b are overlapped. Further, in other words, the opposite side portions 18 of the filter medium 18 are so arranged that the non-sticking portion 18e is not turned by the airflow Po flowing into the bag-like body 17 from the inflow port 17c.
a, 18b Comrades are superimposed.

The length of the bag-like body 17 in the longitudinal direction in the folded state as shown in FIGS. 3 and 4 is set smaller than the length of the mouth plate 19 and the cover 20 in the vertical direction. . The folded bag-like body 17 is located on the back side of the mouth plate 19 so as to be orthogonal to the bellows portions 17d and 17e formed on both sides along the longitudinal direction of the bag-like body 17.

At the edge of the first opening 2b of the dust case 22, a concave receiving portion 2d to which the upper end 19c of the mouth plate 19 is locked.
Is provided. The lower end 19d of the mouth plate 19 is fitted and locked in the receiving portion 11b of the filter support 11, and the upper end 19b is fitted and locked in the receiving portion 2d provided in the first opening 2b of the dust case 2. As a result, the dust case 2 is attached to the first opening 2b. At this time, the cover lid 20 is locked in the recess 11 a of the filter support 11.

A deflecting suction port 24 communicating with the hose connection port 15 is provided inside the dust case lid 13. When the first opening 2b of the dust case 2 is closed by the dust case lid 13, the deflection suction port 24 is located in the bag 17 from the inflow port 17c as shown in FIG. Then, the flow of the airflow Po flowing out of the deflection suction port 24 causes the non-sticking portion 18e of the
8 so as to be pressed inward.

On the rear side of the dust case 2, a second opening 28 for detachably mounting a second dust filter 27 having a net-shaped coarse filter 25 and a fine filter 26 folded in a waveform is provided. Is provided. Second
The dust collecting filter 27 is provided with a dust remover 30 and a striking body 31 that operate using the rotation of the code reel 29 of the code reel winding device 4. Dust remover 30
Can be manually operated by turning the handle 32 by hand. The dust remover 30 is
By sliding on the back of the fine filter 26, fine dust adhering to the fine filter 26 is dropped into the dust collecting chamber 2a. The hitting body 31 is provided with a coarse filter 26.
By vibrating the first dust collection filter 10 in contact with the coarse filter 26 and in an inflated state, dust adhering to the first dust collection filter 10 falls downward in the first dust collection filter 10. It is to let.

In the above configuration, when the electric blower 3 is rotated, the air flow Po containing dust is made to flow through the hose connection port 15.
Then, it flows into the bag-like body 17 of the first dust filter 10 through the deflection suction port 24. In the bag-like body 17, coarse dust and fine dust are captured. A small amount of fine dust and air
And through the coarse filter 25, the fine dust filter 2
It flows to 6 side. The fine dust that cannot be captured by the bag-like body 17 is captured by the fine dust filter 26. The air that has passed through the fine dust filter 26 passes through the electric blower 3 and is discharged to the outside of the main body case 1 through the exhaust port 6 of the main body case 1.

The first dust filter 10 is folded when attached to the filter support 11 of the dust case 2, but the air flow containing dust enters the bag 17 from the inlet 17 c of the bag 17. When Po flows in, the bag 1
As shown in FIG. 1, the outer wall of the bag 17 comes into contact with the coarse filter 26 and the filter holding ribs. In this state, as shown in FIGS. 8 and 9, one side 1 of the filter medium 18 located on the inner wall side of the bag-like body 17 due to the airflow flowing into the bag-like body 17 from the inflow port 17 c.
The non-sticking portion 18e in 8a is pressed against the inner wall of the bag-like body 17, so that the non-sticking portion is not turned and vibrated. Further, since one side end 18d of the filter medium 18 located on the inner wall side of the bag-like body 17 is pressed against the inner wall 18g of the bag-like body 17 by the air flow Po, the air flow P
The coarse dust contained in o does not catch on one side end 18d of the filter medium 18.

Therefore, the overlapping portion 18 of the filter medium 18
The occurrence of an abnormal sound due to the vibration of the non-adhering portion 18e at c can be prevented, and the peeling of the adhesive portion of the overlapped portion 18c due to the strong turning of the non-adhering portion 18e can be prevented.

FIGS. 11 to 20 show another embodiment of the dust collecting filter.

The bag-like body 101 of the dust collecting filter 100 shown in FIGS.
2 and 103 have a double structure in which a portion is adhered partially. The inner filter medium 103 of the bag-like body 101 is made of a thinner material and has higher air permeability than the outer filter medium 102 of the bag-like body 101.

As shown in FIG. 14, the material 104 having a double structure for forming the bag-like body 101 is either an outer filter medium 102 wound around a roller 105 or an inner filter medium 103 wound around a roller 106. On one side, the outer filter medium 102 and the inner filter medium 103 are bonded by a roller 109 while partially applying a paste 108 with a paste roller 107.

The bag-like body 101 overlaps the sides 102a and 102b of the opposite side 102 of the outer filter medium 102, and at least the outer filter medium 102 of the overlapped portion 102c is overlapped.
The one end 102d of one side of the outer filter medium 102, which is located on the inner wall side of the outer filter medium 102, is used as the non-sticking part 102e.
The one side end 103a of the inner filter medium 103 located on the inner wall side of the inner filter medium 103 is projected outward of the one side end 102d of the outer filter medium 102 located on the inner wall side of the inner filter medium 02.

One side end 103b of the inner filter medium 103, which is located on the outer wall side of the inner filter medium 103, is connected to the outer filter medium 102.
Are located between the non-sticking portions 102e.

In another embodiment of FIGS. 11 to 14, FIG.
And L ₅ from the dimension L ₁ as described in FIG. 13, L ₁ = 5 m
m, L ₂ = 10 mm, L ₃ = 5 mm, L ₄ = 2 mm, L ₅ = 13 mm
Is set to The dimension L ₆ of the outer filter medium 102 is set to be 13 mm larger than the dimension L ₇ of the inner filter medium 103. The dimension L ₁ and a dimension L _5, shows the width dimension of the non-adhesive portion, the dimensions L ₂ indicates the width dimension of the bond portion 102f, the dimension L ₄ are, from the one side end 102d of the outer filter media 102 of the inner filter media 103 Indicates the dimension up to one side end 103a, and the dimension L
₁ is an outer filter medium 1 from one side end 103b of the inner filter medium 103.
02 shows the dimensions up to the sticking portion 102f in the overlapping portion 102c of No. 02.

On the surface of the bag-like body 101, an inflow port 101a is provided.
The mouth 104 is adhered to the outer peripheral edge of. Mouth 10
4 is provided with a dust suction port 104a communicating with the inflow port 101a. As shown in FIG. 11, the overlapping part of the sides of the outer filter medium 102 and the inner filter medium 103 is located on the back side of the bag-like body 101. As shown in FIG. 11, the inflow port 101a, the one side edge 102d of the outer filter medium 102, and the one side edge 103b of the inner filter medium 103 are connected to the inflow port 101a.
a, an air flow P ₁ containing dust that has flowed into the bag-like body 101 from a.
Are arranged on the bag-shaped body 101 so as to be pressed against the inner wall of the bag-shaped body 101.

[0037] In another embodiment of FIG. 14 from FIG. 11, without resulting in peeling from the outer filter material 102 side end 103b of the inner filter media 103 is turned by the air stream P _1, the dust collecting capacity of the bag-like member 101 It does not lower. Also,
Side end 102d of the outer filter media 102, since no be turned by the air flow P _1, one side edge 10 of the outer filter media 102
It is possible to prevent the generation of abnormal sound due to the vibration of 2d and the peeling of the sticking portion 102f in the overlapping portion 102c of the outer filter medium 102.

The dust collecting filter 200 shown in FIGS. 15 and 16 is similar to the dust collecting filter 200 shown in FIG. 3 except for the position of the overlapping portion 202 a of the filter medium 202 forming the bag-like body 201 and the shape and mounting position of the mouth plate 203. The structure is the same as that of the dust filter 10 shown in FIG. The mouth plate 203 of FIG. 15 and FIG.
It has a substantially square shape, and is attached to the center of the surface of the bag-like body 201.

The dust collecting filter 300 shown in FIGS. 17 and 18 has the same structure as the dust collecting filter shown in FIGS. 15 and 16 except for the position of the overlapping portion 302a of the filter medium 302 forming the bag-like body 301. It is. 15 and 16
In the dust collecting filter 200, the overlapping portion 202a of 202 is
3 and the dust collection filter 300 shown in FIGS. 17 and 18,
With the bag-shaped body 301 inflated, the overlapping portion 302a of the filter medium 302 is located below the dust suction port 303a of the mouth plate 303.

The dust collecting filter 400 shown in FIGS. 19 and 20 has an inlet 40 above the surface of a vertically long bag-like body 401.
1a, and a mouth plate 4
03, and a dust suction port 40 provided on the mouth plate 403.
3a, a superposed portion 402a of a filter medium 402 forming a bag-like body 401 is disposed at a position shifted to the left side from the left side of FIG.
0 and the same structure.

The dust collecting filter 2 shown in FIGS.
Also in 00, 300, and 400, similarly to the dust filter 10 shown in FIGS.
The non-sticking portions of the overlapping portions 202a, 302a, and 402a of 02 are not turned up by the air flow, and the generation of abnormal sound and the peeling of the sticking portions of the overlapping portions 202a, 302, and 402a can be prevented.

[0042]

As described above, according to the present invention, of the overlapping portions of the outer filter media, one side end located on the inner wall side of the bag-like body is used as a non-sticking portion, and this one side end is formed as a non-sticking portion. The outer wall of the bag-shaped body is disposed so as to be pressed against the inner wall of the bag-shaped body by the air flow flowing into the bag-shaped body from the inlet, and among the opposing sides of the inner filter medium. Since one side end of the inner filter medium located on the side is located between the filter mediums of the non-adhered portion where the outer filter medium is superimposed, the outer side which is the non-adhered inner wall of the bag-shaped body in the dust filter Suppressing the turning and vibration of one side of the filter media, preventing abnormal sound generation and peeling off of the sticking part of the overlapped part, and preventing the inner filter media from being rolled and peeling from the outer filter media Can be.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a vacuum cleaner showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a main part of the vacuum cleaner showing one embodiment of the present invention.

FIG. 3 is a front perspective view of a dust collecting filter showing one embodiment of the present invention.

FIG. 4 is a rear perspective view of the dust filter according to the embodiment of the present invention.

FIG. 5 is a perspective view of a bag-like body showing one embodiment of the present invention.

FIG. 6 is a main part top view of the dust filter showing one embodiment of the present invention.

FIG. 7 is an enlarged view of a main part of a dust collecting filter showing one embodiment of the present invention.

FIG. 8 is an explanatory diagram of an operation of the dust collecting filter according to the embodiment of the present invention.

FIG. 9 is an enlarged view of a main part of a bag-like body of a dust collecting filter according to an embodiment of the present invention.

FIG. 10 is a perspective view of a main part of the dust collecting filter according to an embodiment of the present invention, which is partially cut away in an expanded state.

FIG. 11 is a vertical sectional view of a main part of a dust filter according to another embodiment 1 of the present invention in an expanded state.

FIG. 12 is a longitudinal sectional view of a main part of a dust collecting filter according to another embodiment 1 of the present invention in the middle of inflation of a bag-like body.

FIG. 13 is a developed view of a bag-like body of a dust filter according to another embodiment 1 of the present invention.

FIG. 14 is an explanatory view of a manufacturing process of a material of a bag-like body in a dust filter according to another embodiment 1 of the present invention.

FIG. 15 is a front view of a dust collecting filter showing another embodiment 2 of the present invention.

FIG. 16 is a vertical sectional view of a dust filter according to another embodiment 2 of the present invention in an expanded state.

FIG. 17 is a front view of a dust filter according to another embodiment 3 of the present invention.

FIG. 18 is a longitudinal sectional view showing a dust collecting filter in an expanded state according to a third embodiment of the present invention.

FIG. 19 is a front view of a dust collecting filter showing another embodiment 4 of the present invention.

FIG. 20 is a longitudinal sectional view of a dust filter according to another embodiment 4 of the present invention.

FIG. 21 is a perspective view of a main part of a dust collecting filter according to a conventional example, which is partially cut in the middle of inflation.

FIG. 22 is a vertical sectional view of a main part of a conventional dust collector filter in an expanded state.

[Explanation of symbols]

10: dust collection filter, 17: bag-like body, 17a, 17b
... Opening edges on both sides, 17c ... Inflow port, 18 ... Filter medium, 18a,
18b: side portion, 18c: overlapping portion, 18d: one side edge of the filter medium, 18e: non-adhered portion, 19: mouth plate, 19a: dust suction port.

Continuation of the front page (56) References JP-A-1-181828 (JP, A) JP-A-1-155954 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47L 9 / 14

Claims (3)

(57) [Claims] 1. At least two or more sheet-like filter media are adhered, and opposing sides of the outer filter media located on the outside are overlapped and adhered to form a cylinder, and both side opening edges of the cylinder are sealed. Attached around the outer edge of the inflow port provided in the bag-shaped body obtained by the above, and, provided with a mouth plate provided in a dust suction port that communicates with the inflow port, the overlapping portion of the outer filter medium, at least A dust collector filter for a vacuum cleaner, wherein one side end of the outer filter medium located on the inner wall side of the bag-shaped body is a non-sticking part; With the airflow that has flowed into the bag-shaped body from the inlet, one side end of the outer filter medium, which is the non-sticking portion, is pressed toward the inner wall of the bag-shaped body. Arranged so that the inside of the outside filter media Sides facing the inner filter media located
A vacuum cleaner, wherein one side edge of the inner filter medium, which is located on the outer wall side of the bag-like body, is located between the filter mediums of the non-sticking portions of the outer filter medium which are overlapped. Dust collection filter. 2. At least two or more sheet-like filter media are adhered, and opposing sides of the outer filter media located on the outside are overlapped and adhered to form a cylinder, and both side opening edges of the cylinder are sealed. And a cardboard mouth plate provided with a dust suction port that is adhered to an outer periphery of an inlet provided in the bag and provided with a dust inlet communicating with the inlet. The overlapping portion of the outer filter medium is at least one side edge of the outer filter medium located on the inner wall side of the bag-shaped body, and is a non-sticking part. One side edge of the outer filter medium located on the inner wall side of the body is opposite to the side of the outer filter medium so as to be in a direction opposite to the direction turned by the airflow flowing into the bag body from the inlet. Are placed on top of each other and located inside the outer filter media. Sides facing the inner filter media that
Of comrades, one side end of the inner filter media where located on the outer wall side of the bag-like body, electric vacuum, characterized in that is positioned between the filter medium of the non-adhesive portion was overlaid Align the outer filter media Dust collection filter for machine. 3. A vacuum cleaner comprising the dust collecting filter according to claim 1.