CN1774199A - Dust-collecting filter for electrical cleaner - Google Patents
Dust-collecting filter for electrical cleaner Download PDFInfo
- Publication number
- CN1774199A CN1774199A CNA2004800103623A CN200480010362A CN1774199A CN 1774199 A CN1774199 A CN 1774199A CN A2004800103623 A CNA2004800103623 A CN A2004800103623A CN 200480010362 A CN200480010362 A CN 200480010362A CN 1774199 A CN1774199 A CN 1774199A
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- Prior art keywords
- layer
- nonwoven
- dust
- piece portion
- filter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
- B01D46/0095—Means acting upon failure of the filtering system, e.g. in case of damage of the filter elements; Failsafes
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
- A47L9/1427—Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters
- A47L9/1436—Connecting plates, e.g. collars, end closures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
- B01D2279/55—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for cleaning appliances, e.g. suction cleaners
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
Abstract
A filter for a cleaner, having no gussets for expansion, and being expansible and free from breakage. A filter body (3) is attached to an installation board (2), and the filter body (3) forms by its front face sheet portion and rear face sheet portion a bag-like body having no gussets. The filter body (3) is made from a non-woven sheet having flexibility that is bending resistance of 100 mm or less by a 45-degree cantilever method. A tensile breaking elongation of the non-woven sheet is 15% or more.
Description
Technical field
The present invention relates to the improvement of dust-collecting filter for electrical cleaner.
Background technology
From past, the disposable motor-driven dust catcher dust-collecting filter of known marsupial shape.As this existing dust-collecting filter for electrical cleaner, the filter of Fig. 9 (A) shown in (B) for example arranged.This dust-collecting filter for electrical cleaner has filter body a and tabular installation hardboard b, described filter body a has dust collecting opening a1 on the a2 of sheet portion in front, tabular installation hardboard b is made of the ground paper that releasably is installed on the electric dust collector, this filter body a is by two sides a2 before and after having, a4 and left and right sides face a3, the parts of a3 constitute, under the state of the tubular of both ends open up and down, with left and right sides face a3, a3 is respectively from a2 of front piece portion and the a4 of rear piece portion bending, simultaneously, by with left and right sides face a3, a3 locates the d3 doubling in the paddy folding part of central authorities (paddy folding リ portion) respectively, fold into equivalent respectively between a2 of sheet portion and the a4 of rear piece portion in front and form crotch (Crotch with this) d of portion, d, in front the a2 of sheet portion about central authorities dust collecting opening a1 is set, filter body a is formed than the wide slightly flat of hardboard b is installed.And, as shown in figure 10, by the upper end is turned back to the lower side, engaged, form upper end closure e1, simultaneously, by with the bottom of bag c upward side turn back, engage, form bottom closure e2.The a2 of front piece portion by the filter body a that will form like this, so that the dust collecting opening a1 of the a2 of front piece portion installs mode that the flexible pipe introducing port b1 on the hardboard b aligns and is bonded on and installs on the hardboard b with being arranged on, the a2 of front piece portion that makes filter body a from install hardboard b about and two ends are outstanding respectively up and down, and, to fold rearward from two positions in upper end, lower end that hardboard b is installed respectively from the outstanding respectively filter body a in the two ends up and down that hardboard b is installed from this state, make the flat that is made into to the body miniaturization.Then, in use, by will being installed, hardboard b is installed on the installation portion that is arranged on the dust storage chamber on the electric dust collector, dust-collecting filter for electrical cleaner can be installed on the dust storage chamber, simultaneously, be accompanied by the sucking action of electric dust collector, filter body a expand into dust storage chamber inwall, can collect dust.
But, because the d of crotch portion, d form in the mode that left and right sides face a3, a3 are folded into respectively between a2 of front piece portion and the a4 of rear piece portion, therefore, the formation of the d of crotch portion, d needs operation and time, simultaneously, in the manufacturing process of crotch portion, when forming paddy folding part d3, might cause the sheet breakage, produce substandard products.And,, wait the problem that also is difficult to discovery even therefore have to test because this defective is in the d of crotch portion.In addition, be difficult to alignment,, then will diminish outward appearance, make the commodity value reduction if produce dislocation from the kink d1 of the a2 of front piece portion and the kink d2 position of the a4 of sheet portion from behind.In addition, as shown in figure 10, when forming upper end closure e1 and bottom closure e2, about both ends on, must fold into sheet a5, a5 totally four overlapping turning back of sheet with the a2 of front piece portion, the a4 of rear piece portion and with each side a3, a3 doubling two, cause the thickness of fold back portion to increase, very difficulty of operation therefore is difficult to roll well, turns back.And even turn back, elasticity also will act on the reflex part very doughtily, will return to original state, and its result is difficult to engage, and has the problem that produces the gap between upper end and bottom.In this case, if form the d of crotch portion, d again after forming upper end closure e1 and bottom closure e2, then the formation of the d of crotch portion, d will be difficult more.
In addition, producer or type difference according to the electric dust collector that folds into, the form of the dust storage chamber of electric dust collector also has nothing in common with each other, has the situation that dust-collecting filter for electrical cleaner is installed in the situation on the dust storage chamber and need installs from the right-hand member side that hardboard b is installed from the lower end side that hardboard b is installed, under the situation of installing from the right-hand member side that hardboard b is installed, become obstacle from the protuberance f of the outstanding filter body a of the right-hand member that hardboard b is installed, this protuberance f must be installed to bending rearward, trouble, time-consuming is installed.In addition, the user installs protuberance f when carrying out this installation sometimes mistakenly with hardboard b is installed, in this case, filter body a is expanded in dust storage chamber.In addition, in this case, for example shown in Figure 11 (A), can consider to make filter body a and install with respect to hardboard b deflection left side ground is installed, make filter body a not outstanding from the right side that hardboard b is installed, but in this case, shown in Figure 11 (B), because filter body a is provided with the state of the left side of the dust storage chamber 102 of deflection electric dust collector 100, even therefore filter body a expands in dust storage chamber 102, the whole right-hand member side of filter body a also can not be met the inwall 102a of dust storage chamber 102, and and the inwall 102a of dust storage chamber 102 between produce gap 103, have the problem of using middle filtrator body a to break.
Therefore, the applicant has proposed the spy and has opened the described invention of 2002-65530 communique in order to realize following three purposes.
It is simple to operate and can not produce the dust-collecting filter for electrical cleaner in gap in closure that first purpose provides turning back of closure.
Second purpose provides the dust-collecting filter for electrical cleaner that forms folded state at short notice easily, can carry out low-cost manufacturing.
When the 3rd purpose provides on the electric dust collector that can easily be installed in various types, the dust-collecting filter for electrical cleaner that uses the middle filtrator body can not break, the turning back simple to operate and can not produce the gap in upper end closure and bottom closure, can carry out low cost manufacturing of the upper end closure of this dust-collecting filter and bottom closure.
The dust-collecting filter for electrical cleaner that the spy opens in the 2002-65530 communique has front piece portion and rear piece portion, and the circumference by be bonded with each other this front piece portion and rear piece portion forms filter body by front piece portion and rear piece portion.More particularly, the front piece portion of filter body and rear piece portion are made of respectively front piece portion, the rear piece portion of the cylindrical body of both ends open, this cylindrical body forms by the side that interconnects continuous a series of sheet component, front piece portion and rear piece portion are engaged by folding part and closure, the folding part forms by folding sheet component as cylindrical body, and closure forms by being turned back respectively in the two ends of the cylindrical body of opening, engaging.And this filter body has crease line, and by this crease line, filter body is divided and forms non-reflex part and reflex part, and reflex part is folded back the rear side of non-reflex part along crease line.
But common this filter uses the filter made of paper that often uses, and this spy opens under the situation of the invention in the 2002-65530 communique in enforcement, only still has to act on the problem that dust remover filter can not fully be expanded pouch by getter action.Especially as shown in figure 12, be installed at installation hardboard 200 under the situation on the fixed part 201 of dust storage chamber of electric dust collector and have following problem filter, promptly, the reflex part 204 of filter body 203 is on the bottom 202 of dust storage chamber, and the part k at the angle between reflex part 204 and the non-reflex part 205 can not fully expand.In addition, various concavo-convex situations about being set in the dust storage chamber 201 are in the majority, therefore produce filter and hang over this and concavo-convexly go up, can not fully expand the problem that causes filter to break under pouch, the worst situation.
And as shown in Figure 8, under situation about will install on the fixed part that hardboard is installed in dust storage chamber, filter body is also entered by folder sometimes, its result, and the problem that pouch, filter break can not be fully expanded in generation.
Therefore, the objective of the invention is that one side solves above-mentioned first to the 3rd problem, one side provides the dust-collecting filter for electrical cleaner that can expand and be not easy to take place the filter breakage really.
Summary of the invention
In technical scheme 1 to 3 of the present invention as constituted above, only the rear side that reflex part 33,34 is gone back to non-reflex part 30 along crease line 37,38 gets final product, can make the formation of reflex part 33,34 become simple, simultaneously, can be as not existing, as left surface, right flank folded between the front piece portion of filter body 3 and the rear piece portion and form under the situation of crotch portion, the dislocation of kink that the sheet portion from behind of taking place begins and the kink that begins from front piece portion, but can easily carry out the manufacturing of filter body 3.
In addition, owing to form reflex part 33,34 by the rear side of going back to non-reflex part 30 along crease line 37,38, therefore, need not be as existing, as left surface, right flank folded between the front piece portion of filter body 3 and the rear piece portion and form under the situation of crotch portion, overlapping front piece portion 31 and rear piece portion 32 and two fold into sheet four sheets altogether, but only overlapping front piece portion 31 and the rear piece portion 32 of turning back gets final product the upper end closure 35 and the bottom closure 36 of the filter body 3 that can turn back simply.And, can positively upper end closure 35 and bottom closure 36 be engaged at short notice, can prevent that as existing overlapping four the situation of turning back, the elasticity that will restore owing to the sheet that turns back that turns back causes bond-off, produces the problem in gap.
And, the more important thing is, because the tension fracture elongation rate of the sheet 3a that the nonwoven of formation filter body is made is 15～65%, therefore, even hang over that concavo-convex in the dust storage chamber of electric dust collector gone up or with under the situation that state that hardboard is sandwiched in fixed part installs is installed, also can by the height percentage elongation, do not break ground, successfully from disengagings such as concavo-convex or fixed parts, can expand pouch well.
And, in technical scheme 2 of the present invention, because filter body 3 is by having the pocket that the sheet 3a that made smaller or equal to the nonwoven of the flexibility of 100mm by the 45 bending resistance degree that form of degree cantilever methods constitutes, therefore, even crotch portion is not set, becomes state shown in Figure 12, can not block ground, bight and expand unobstructedly yet, can on real significance, make filter practicability with above-mentioned various effects by the sufficient flexibility of filter body 3.
In addition, as described in the invention of technical scheme 3, front piece portion with the cylindrical body of the both ends open that forms each other by the side that connects continuous a series of sheet component, rear piece portion constitutes the front piece portion 31 and the rear piece portion 32 of filter body 3 respectively, and, if by folding part 39,39 and closure 35,36 engage front piece portion 31 and rear piece portion 32, the manufacturing of filter body 3 is more prone to, can make with low cost, described folding part 39,39 form described closure 35 by folding sheet component as cylindrical body, 36 by turning back respectively, the two ends of the cylindrical body of coupling opening and forming.
Technical scheme 4 of the present invention provides as each described dust-collecting filter for electrical cleaner in the technical scheme 1 to 3, it is characterized in that, filter body 3, its be provided with above-mentioned dust collecting opening 31a substantial middle non-reflex part 30 all be reflex part 33,34,43,44 up and down.Like this, by on any one direction of four direction, reflex part being set all,, also can obtain having the filter body 3 of abundant volume even without crotch.And, for example shown in Figure 1, by will all folding into enough length up and down, can make the end up and down of non-reflex part 30 not outstanding from hardboard 2 is installed.Like this, need from any direction that hardboard 2 is installed under the situation that the dust storage chamber 102 of electric dust collector 100 is installed, can make filter body 3 not become obstacle ground and install simply.And the user also is not easy to produce the situation of mistakenly filter body 3 being installed with installation hardboard 2 when carrying out this installation.Therefore, even under the dust storage chamber 102 of electric dust collector 100 situation different, also can install simply correspondingly because of producer or type.
Technical scheme 5 of the present invention provides each described dust-collecting filter for electrical cleaner in the technical scheme 1 to 4, it is characterized in that, the circumference joint each other of front piece portion 31 and rear piece portion 32 be the sheet 3a that makes of the not overlapping nonwoven that turns back inner face side each other and any at least mode that engages by heat-sealing and bonding agent.Like this, by not overlapping turn back sheet each other inner face side and engage by heat-sealing and at least a of bonding agent, can prevent that the fine dust etc. of the dust-collecting filter inside of bag shape from spilling from the junction surface.In addition, can produce the filter of same volume with cutting the less use amount that is equivalent to fold back portion.
Technical scheme 6 of the present invention provides each described dust-collecting filter for electrical cleaner in the technical scheme 1 to 5, it is characterized in that, the circumference of front piece portion 31 and rear piece portion 32 joint each other is the mode that the inner face side of the sheet 3a that makes of the not overlapping nonwoven that turns back seals each other, this heat-sealing is the heat-sealing of heating the embossing that carries out by by the protuberance with the outstanding setting of regulation density, the mutual heat-sealing portion of circumference has near the inboard heat seal lands of bag central authorities with near the outside heat-sealing portion of end, and the above-mentioned density of the heat-sealing of inboard heat-sealing portion is greater than the above-mentioned density of outside heat-sealing.
But heat-sealing is to roll etc. on the sheet of making by the nonwoven that is pressed in heat bonding with the pressure of regulation and carry out having concavo-convex heating, at this moment, along with the density (embossing area occupation ratio) that seals uprises, the heat energy of the per unit area of protuberance diminishes, along with the density step-down, it is big that the heat energy of the per unit area of protuberance becomes.Its result, with regard to the heat bonding material, heat-sealing density Gao Zeke carries out soft heat-sealing, can reduce the rotten of material, density is little then can to realize powerful heat-sealing, but going bad of material is strong, compression resistance is poor, when therefore moment applied bigger power, material might break from heat seal lands.
On the other hand, at filter expansion pouch, when carrying out control of dust, be subjected to bigger blast toward the outer side from the inboard of bag.Though this power concentrates on the bonding part, this moment, as mentioned above, filter material might break from heat seal lands under the situation of using the heat-sealing dingus.Therefore, to being subjected to the inboard heat-sealing portion of blast at first, one side is by improving the above-mentioned density of heat-sealing, reduce the rotten of material as far as possible, prevent the fragmentation of filter material, one side is carried out powerful heat-sealing by reduce density on the heat seal lands of the outside, makes integral body be not easy to break and realize powerful joint.
Technical scheme 7 of the present invention provides each described dust-collecting filter for electrical cleaner in the technical scheme 1 to 6, it is characterized in that, the sheet 3a that 32 in the front piece portion 31 of filter body 3 and rear piece portion are made by above-mentioned one nonwoven with laminar structure of flexibility forms, and does not add other plates on positive and negative any one side of the sheet that this nonwoven is made.Thus, can provide filter more soft, that expand easily.Especially filter by interior dough sheet and outside under two sheets of dough sheet situation about constituting, when filter expansion pouch, the extended method difference of interior outer plate, the situation that interior sheet is not expanded though be easy to generate outer dough sheet expansion, but, by the sheet 3a formation filter body of only making, can eliminate such danger fully with a nonwoven with laminar structure of flexibility.
Description of drawings
Fig. 1 is the front view of an embodiment of expression dust-collecting filter for electrical cleaner of the present invention.
Fig. 2 is the rearview of this filter.
Fig. 3 (A) is an expansion profile schema diagram of using the junction surface along the tube formation of the A-A line of Fig. 6, (B) is the expansion profile schema diagram along the A-A line of Fig. 6, (C) is the expansion profile schema diagram along the B-B line of Fig. 5.
Fig. 4 is the key diagram of the manufacturing process of this filter.
Fig. 5 is the front view of the deployed condition of this filter.
Fig. 6 is the back view of the deployed condition of this filter.
Fig. 7 be with this filter be installed in the dust storage chamber of electric dust collector, the critical piece cutaway view of the state that expands.
Fig. 8 (A) is that key diagram, (B) that filter is installed in the state in the dust storage chamber of electric dust collector mistakenly are the key diagrams of the state after this mistake is corrected.
Fig. 9 represents existing filter, (A) is with the folding front view before in the upper and lower of filter body, (B) is VIII-VIII line cutaway view.
Figure 10 is the IX-IX line cutaway view of Fig. 9.
Figure 11 (A) installs the cross sectional illustration figure that hardboard is offset installment state to the left relatively with existing filter body, (B) is the cutaway view that makes the critical piece of the state that filter body expands from this state.
Figure 12 is the key diagram that existing other filter is installed in the state in the dust storage chamber.
The specific embodiment
Below be specifically described with regard to a specific embodiment of the present invention with reference to the accompanying drawings.
Fig. 1 is the front view of an embodiment of expression dust-collecting filter for electrical cleaner of the present invention, Fig. 2 is its rearview, Fig. 3 (A) is an expansion profile schema diagram of using the junction surface along the tube formation of the A-A line of Fig. 6, Fig. 3 (B) is the expansion profile schema diagram along the A-A line of Fig. 6, and Fig. 3 (C) is the expansion profile schema diagram along the B-B line of Fig. 5.
Dust-collecting filter for electrical cleaner 1 of the present invention is the universal disposable filter of dust catcher of different types of machines that can be used for the dust catcher of a plurality of companies or a company, has the hardboard 2 of installation and filter body 3.In the present embodiment, the plate body of hardboard 2 is installed is the rectangle that is formed by ground paper constitutes, and its material can be used various materials such as synthetic resin, metal except paper, should only not be interpreted as " paper ".The dust suction that is used to import electric dust collector 100 is penetrated the substantial middle portion that hardboard 2 is installed that is arranged on the flexible pipe introducing port 21 of the circle of flexible pipe 101 (shown in Figure 7).In the upper end side that hardboard 2 is installed, a plurality of shearing sheets 22,22 can be divided formation by many shear line 22a, 22a with shearing, suitably cut by dust storage chamber 102 (shown in Figure 7), hardboard 2 is installed is formed the size that is suitable for various dust storage chambers 102 from shear line 22a, 22a according to the electric dust collector 100 of various types.In addition, the lower end side in that hardboard 2 is installed is formed with otch 23, by this otch 23, is fit to be installed on have and locatees the electric dust collector of using protuberance.
On the other hand, in the left-hand end that hardboard 2 is installed, groove of the notch formation portion 24,25 can divide formation by shear line 24a, 25a with shearing, by cut groove of the notch formation portion 24,25 from shear line 24a, 25a, can form the groove of the notch in the left end side that hardboard 2 is installed, make it to be suitable for being installed in to have on the electric dust collector of location with groove intercalation sheet.In addition, hardboard 2 is installed is not limited to be respectively arranged with the mode of shearing sheet 22,22, otch formation portion 23 and groove of the notch formation portion 24,25, can be provided with more than one of them, can one be provided with yet, in addition, also can other positioner be set or shear sheet, otch etc. in the hole etc. that the right-hand member side that hardboard is installed be provided with location usefulness.In addition, though be not particularly limited for the material that hardboard 2 is installed, under as disposable situation, the cardboard that is made of ground paper is favourable at aspect the burning property or cost aspect.
Dust collecting opening 31a is penetrated to be arranged on the sheet 3a that this nonwoven makes.The diameter of dust collecting opening 31a in the present embodiment forms less than flexible pipe introducing port 21 ground that hardboard 2 is installed, and simultaneously, has a plurality of otch 31b...31b radially.And as shown in Figure 4, the left side of the sheet 3a that this nonwoven is made and right side be from dust collecting opening 31a roughly equidistant position bending, turn back rearward, and with its side formation tubular that is engaged with each other.Below this side joint each other is called tube formation junction surface 3b.Like this, by forming and use junction surface 3b with the bonding tube that wait to engage, the cylindrical body of both ends open about the sheet 3a that nonwoven is made forms is with front piece portion 31, the rear piece portion 32 as filter body 3 of the front piece portion of this cylindrical body, rear piece portion.Then, the open end of the cylindrical body that will be made of front piece portion 31 and rear piece portion 32 under the state of overlapping front piece portion 31 and rear piece portion 32 engages.This junction surface is the part that the open end of cylindrical body is closed, sealed, hereinafter referred to as end closure 35,36 (being called upper end closure 35 and bottom closure 36 when distinguishing up and down).The particular content of the connected structure of tube formation usefulness junction surface 3b and end closure 35,36 as described later.
As mentioned above, the front piece portion 31 of the bag in the present embodiment 3 and rear piece portion 32 are left and right sides by the kink 39,39 that bends engage, upper end closure 35 and bottom closure 36 and the engaging portion of two ends by overlapping joint up and down.In addition, the position that the tube of the sheet 3a that the joint nonwoven that turns back is made forms with junction surface 3b is the central authorities of rear piece portion 32, implement as the position parallel with kink 39,39, but be not limited thereto, and also be not limited to tube is formed the mode along above-below direction formation with junction surface 3b, also can form along incline direction.Filter body 3 is not limited to the sheet 3a that is made by a nonwoven and forms, and can carry out suitable variation, for example can engage the sheet that two nonwoven are made.
In addition, as shown in Figure 5 and Figure 6, on the left part side of this filter body 3 and right part side, have left crease line 37 and right crease line 38.Left side crease line 37 is to be used to turn back the line of left part of filter body 3, separate at left end on the right-hand position of predetermined distance from filter body 3, form up to bottom closure 36 along above-below direction from upper end closure 35, in addition, right crease line 38 is to be used to turn back the line of right part of filter body 3, separate at right-hand member on the left position of predetermined distance from filter body 3, form up to bottom closure 36 along above-below direction from upper end closure 35, by these left crease line 37 and right crease line 38, filter body 3 is divided the left reflex part 33 that forms the left side, the right reflex part 34 on right side and non-bending part 30 between the two.And left reflex part 33 turns back to the rear side of non-bending part 30 from left crease line 37.Like this, the left part side of filter body 3 and right part side be in front under the overlapping state of sheet portion 31 and 32 two sheets of rear piece portion, is provided with together to be folded on rear piece portion 32 sides of rear side.
In addition, in the present embodiment, the width of the width of right reflex part 34 and left reflex part 33 is configured to about equally, and the folding part 39,39 about being folded back is positioned at the substantial middle of dust collecting opening 31a.But also the width of right reflex part 34 can be set for width, the length difference about the amount of turning back of right reflex part 34 makes less than the amount of turning back of left reflex part 33 etc. less than left reflex part 33.
And, as shown in Figure 5, crease line 41 and following crease line 42 on having on the upper side of filter body 3 and the lower side.Last crease line 41 is to be used for line that the downward rear side in the top of filter body 3 is turned back, separate in upper end on the lower position of predetermined distance from filter body 3, form up to right-hand member from left end along left and right directions, following crease line 42 is to be used for bottom with filter body 3 line that rear side turns back that makes progress, separate in lower end on the lower position of predetermined distance from filter body 3, form up to right-hand member from left end along left and right directions, by such crease line 41 up and down, 42, filter body 3 is divided the last reflex part 43 that forms upper side, the following reflex part 44 of lower side and non-bending part 30 between the two.And last reflex part 43 and following reflex part 44 turn back to the rear side of non-bending part 30 with following crease line 42 from last crease line 41 respectively after above-mentioned left reflex part 33 and right reflex part 34 are turned back.Therefore, on turning back respectively when reflex part 43 and following reflex part 44, the left reflex part 33 that turns back and each top, the bottom of right reflex part 34 are also turned back simultaneously.Like this, each one all around of filter body 3 is folded back, is folded into flat, takes care of under this state and transportation etc.In addition, last reflex part 43 and turning back of following reflex part 44 also can be carried out before turn back left reflex part 33 and right reflex part 34.
The non-bending part 30 of the front piece portion 31 of the filter body 3 of formation flat is so that the mode that the dust collecting opening 31a of filter body 3 aligns with flexible pipe introducing port 21 cores that hardboard 2 is installed is installed in the rear piece portion that hardboard 2 is installed like this.Specifically be, will fix between the two, but be not bonded on the whole non-bending part 30, only engage the periphery of dust collecting opening 31a and flexible pipe introducing port 21, between the periphery of the periphery of this bonding part and non-bending part 30, preferably leave asynthetic part with bonding agent.In addition, from the front, filter body 3 does not preferably expose from the outer peripheral lines of rectangle that hardboard 2 is installed.
Constitute reflex part 33,34 as described above, as long as reflex part 33,34,43,44 is turned back rearward, can prevent as in the past, as fold between the front piece portion of filter body 3 and the rear piece portion and form under the situation of crotch portion, produce the dislocation of sheet portion kink that begins and the kink that begins from front piece portion from behind, can form at short notice simply simultaneously, and can make with low cost.
In addition, even make the upper end closure 35 of filter body 3 and bottom closure 36 such not as the situation that between the front piece portion of existing filter body 3 and rear piece portion, forms crotch portion, overlapping, the front piece portion 31 of turning back, rear piece portion 32 and two fold into sheet totally four sheets, also can be only overlapping, 32 two sheets of front piece portion 31 and rear piece portion turn back, can turn back simply, and, can positively engage upper end closure 35 and bottom closure 36 at short notice, can prevent to resemble existing overlapping, the situation of four sheets of turning back is such, and the elasticity that will restore owing to the sheet that turns back that turns back causes engaging and breaks away from, produce the gap.
On the other hand, in use, because under the situation on the dust storage chamber 102 that is installed in electric dust collector 100 from any direction that hardboard 2 is installed, reflex part can be not outstanding from hardboard 2 is installed, therefore, filter body 3 can not become obstacle, can install simply.In addition, also can prevent the user when carrying out this installation, mistakenly filter body 3 be installed with hardboard 2 is installed.Therefore, though the dust storage chamber of electric dust collector 100 102 owing under the different and different situation of producer or type, also can simply install therewith with adapting to.On the other hand, when the dust-collecting filter for electrical cleaner 1 on the dust storage chamber 102 that is installed in electric dust collector 100 expands owing to the getter action of electric dust collector 100, because the substantial middle that hardboard 2 and dust collecting opening 31a are set at filter body 3 is installed, therefore, can roughly expansion equably in the dust storage chamber of electric dust collector.
In addition, the present invention is not limited to above-mentioned embodiment, and for example, the shape of filter body 3 (shape of front piece portion 31 and rear piece portion 32) can change to rectangle, other polygonals etc. and implement except square.In addition, the position of flexible pipe introducing port 21 that hardboard 2 is installed also can be arranged on and wait up and down from the position of the central displacement of installation hardboard 2 except being arranged on the substantial middle portion that hardboard 2 is installed.Like this, staggering from central authorities in the position of the flexible pipe introducing port 21 by hardboard 2 will be installed, according to the type of dust catcher, can easily install dust catcher sometimes.Equally, the dust collecting opening 31a of filter body 3 is except the central authorities (central authorities of front piece portion 31) that are formed on filter body 3, also can be arranged on and wait up and down from the position of central displacement, and the position relation of installation hardboard 2 and filter body 3 also can suitably change and implement.
Below, the sheet made from regard to the nonwoven that constitutes above-mentioned filter body 3 describes.In addition, implement though the sheet that this nonwoven is made is suitable as the dust-collecting filter of said structure most, the electric dust collector that also can be used as other disposable bag shapes uses with filter.It specifically is the filter that can be used to have the tabular installation hardboard on the dust storage chamber that is installed in dust catcher and be installed in the filter body at this hardboard back side.
The sheet that this nonwoven is made is under situation about implementing as filter body 3, because to being caught control of dust by the dust that sucks from dust collecting opening 3la, therefore, the inner face side of bag is a upstream side, the exterior side of bag is the downstream.
The sheet that this nonwoven is made is as described in after the technical scheme 8, the feature that constitutes the nonwoven fabric for filter of filter body 3 is: this nonwoven is the nonwoven at least three layers in stacked upstream layer, downstream layer and intermediate layer, upstream layer is set on the face of inflow side of the air that contains dust, downstream layer is set on the face of outflow side, the intermediate layer is set between upstream layer and the downstream layer, the intermediate layer is made of the one deck at least that contains melt spraying non-woven fabrics, and upstream layer and downstream layer are made of the dry type nonwoven of weight per unit area greater than the melt spraying non-woven fabrics in intermediate layer.
In addition, it is characterized in that above-mentioned upstream layer and downstream layer are made of spun bond nonwoven fabric, the spun bond nonwoven fabric of the melt spraying non-woven fabrics in intermediate layer and upstream layer and downstream layer is by string row laminating (イ Application ラ イ ン Plot
Method) by lamination.
In addition, it is characterized in that the average fiber of the melt spraying non-woven fabrics in above-mentioned intermediate layer directly is 0.1～10 μ m, the weight per unit area of one deck is more than or equal to 1g/m at least
2, not enough 5g/m
2, the fiber diameter of the nonwoven of upstream layer and downstream layer is 10～30 μ m, the weight per unit area of one deck is more than or equal to 5g/m at least
2, not enough 40g/m
2
In other words, it is characterized in that, the nonwoven fabric for filter that constitutes filter body 3 is the lamination upstream layer, the nonwoven that downstream layer and intermediate layer are at least three layers, upstream layer is set on the face of inflow side of the air that contains dust, downstream layer is set on the face of outflow side, the intermediate layer is set between upstream layer and the downstream layer, the intermediate layer is made of the one deck at least that contains the dry type nonwoven that the average fiber footpath synthetic fibers smaller or equal to 10 μ m constitute, and upstream layer and downstream layer constitute by having the dry type nonwoven that the synthetic fibers of average fiber footpath greater than the dry type nonwoven in intermediate layer constitute.
The sheet that this nonwoven is made is the intermediate layer with the melt-blown nonwoven layer of cloth, and side and downstream form as upstream layer and downstream layer lamination with the spun bond nonwoven fabric layer at its upstream.The nonwoven that constitutes these layered products is to use the dry type nonwoven of synthetic fibers, especially TPO fiber, preferably by utilizing these nonwoven layer of string row lamination to make, makes but also can engage by secondary.
The tension fracture elongation rate of the sheet that this nonwoven is made is specially 15～65%, is more preferably by forming 30～50%, even have concavo-convexly on the dust storage chamber, and clamps with hardboard is installed, and also can not break, and can expand well.Fig. 8 represents this state, shown in Fig. 8 (A), in the time of on the fixed part 102b that hardboard 2 is installed in dust storage chamber 101 will be installed, even under the situation that the sheet 3a that nonwoven is made is clamped together, shown in Fig. 8 (B), because the flexibility of sheet and bigger tension fracture elongation rate, the sheet 3a that nonwoven is made can not break yet, and can extract, expand sleekly pouch.
The sheet that the nonwoven that is made of such layered product is made can use various bending resistance degree to implement, in technical scheme 2 of the present invention, be that the sheet that the nonwoven of the flexibility of 100～10mm is made constitutes filter body by having bending resistance degree that cantilever method forms.Like this, even under the situation that crotch portion is not set, also can expand pouch well.
Below be elaborated with regard to each layer.At first begin explanation from the intermediate layer, for the fine dust of mould or pollen etc. is carried out high efficiency control of dust, the dry type nonwoven that average fiber footpath constitutes smaller or equal to the synthetic fibers of 10 μ m (0.1～10 μ m, be preferably 0.2～6 μ m) preferably is set, as the nonwoven in such fiber footpath, suitable have a melt spraying non-woven fabrics.In addition, though weight per unit area can be at 1～40g/m
2About, in case but because weight per unit area increases, and the pressure loss also will become greatly, therefore, best not enough 5g/m
2Especially as the intermediate layer, be 1.5～4g/m by the two-layer weight per unit area of lamination
2Melt spraying non-woven fabrics implement, all be favourable aspect the pressure loss and the dust collecting performance two.
In addition, in the present invention, though the sheet of making by the nonwoven that uses bigger tension fracture elongation rate, pocket filter is expanded well, even there is projection etc. that breakage can not take place yet, in case but tension fracture elongation rate increases, and then dust collecting effect might reduce.But because the fiber of melt-blown nonwoven layer of cloth footpath is little, and make by following method, constitute by very long superfine fibre, therefore, even tension fracture elongation rate is bigger, also can provides the reduction of dust collecting effect less, can obtain the filter of good dust collecting effect.
Melt spraying non-woven fabrics undertaken sheetization by following method, that is, the high velocity air after the heating is sprayed to the thread of melting heat moldable resin, and the effect by this air-flow stretches molten resin, carry out superfine fibreization.
Thermoplastic resin as the nonwoven that constitutes this intermediate layer, can give an example out the crystalline resin of polyamide-based resin etc. of polyester resin, nylon 6, nylon 66 etc. of vistanex, PET etc. of polypropylene-based resin, polythylene resin etc., wherein, vistanex is especially in that to melt and spray aspect polypropylene-based resins such as spinnability, resistance to water best.Under the situation of using vistanex, can be the monomer of polypropylene-based resin, polythylene resin etc. or two or more mixtures, as required, can use with respect to above-mentioned various materials and contain other the resin composition of vinyl resins, propylene resin, thermoplasticity synthetic rubber etc. below the 50 quality %.
Upstream layer and downstream layer are to be made of the weight per unit area of upstream layer and the downstream layer dry type nonwoven greater than the melt spraying non-woven fabrics in intermediate layer.The melt spraying non-woven fabrics in intermediate layer can carry out the reverse side of control of dust expeditiously by using superfine ultimate fibre to trickle dust, its mechanical strength is lower.Therefore, when using separately as filter, upstream side causes serious situation that nonwoven sustains damage owing to the rubbish that is inhaled under, occur the problem of leak, on the other hand, in the downstream, because the ultimate fibre of nonwoven peels off, and intactly discharged, so has the problem that produces new fine solid particle by filter to the outside of dust catcher.Therefore, in the upstream side and the downstream of the melt-blown nonwoven layer of cloth in intermediate layer the layer that the average fiber footpath is big, mechanical strength is high is set.The nonwoven that constitutes this upstream layer and downstream layer preferably average fiber directly is that 10～50 μ m, weight per unit area are more than or equal to 5g/m
2, not enough 40g/m
2If average fiber footpath or weight per unit area are too small, then mechanical strength descends, if excessive, then as the control of dust ability drop of filter, therefore is preferably in above-mentioned scope.
In addition, be the dry type nonwoven owing to constitute the nonwoven of upstream layer and downstream layer, so interweaving of the fiber of intermediate layer and each interlayer is good, the skew that is not easy to produce interlayer can obtain stay-in-grade nonwoven.The nonwoven of upstream layer and downstream layer is suitably for thermoplastic resin, the vistanex of polypropylene-based resin, polythylene resin etc. especially, but also can be by forming with the intermediate layer identical materials.Under the situation of using vistanex, can be the monomer of polypropylene-based resin, polythylene resin etc. or two or more mixtures, as required, can use the resin composition that contains other vinyl resins below the 50 quality %, propylene resin, thermoplasticity synthetic rubber etc. with respect to above-mentioned various materials.
The dry type nonwoven that is used for nonwoven lamination body of the present invention can use spun bond nonwoven fabric, but the nonwoven of except spunbonded type, also can using, melt and spray, other manufacture methods such as spunlaced being made by air lay, flash spinning (Off ラ Star シ ユ Spinning yarn).In addition, as combining form, can adopt that the thermal bonding of embossing, calendering, hot gas etc., bonding agent are bonding, the machinery of acupuncture, water perforation etc. interweaves etc., but from the viewpoint of productivity and gas permeability etc., the preferably thermal bonding of being undertaken by embossing.
As each layer laminating method each other, can finish the nonwoven of different layers, then these nonwoven are fitted, but from the viewpoint of production efficiency with realize fiber interweaving aspect between each layer, preferably use string row laminating method.Specifically be the spinning of carrying out melt spraying non-woven fabrics on the nonwoven (for example spun bond nonwoven fabric) at downstream layer or upstream layer, then multistage, make the nonwoven (for example spunbonded type spins cloth) of upstream layer or downstream layer continuously.And, in order to improve the zygosity of interlayer, can adopt string row laminated heat engagement device, especially the hot rolling line rolls method.This hot rolling line method of rolling can be used embossing to roll to roll the well-known laminater that rolls with the plane and carry out lamination.At this, roll as embossing, can adopt the embossing pattern of different shape, each melt-coating part has continuous clathrate, independently clathrate, any distribution etc.In addition, as the embossing area occupation ratio, be preferably in the scope about 5～40%.Like this, roll method according to the hot rolling line, by the bond strength raising of the heated part of embossing, opposite gas permeability reduces.On the other hand, non-heating part is held the gas permeability of appropriateness, can bring into play good filtering function as filter.Therefore, by not heating whole, but as mentioned above, adopting the embossing area occupation ratio is about 5～40%, preferably 10～20% hot rolling line method, can obtain having the sheet that the nonwoven fabric for filter of intensity and filtering function is made.
In the above description, show upstream layer, intermediate layer, downstream layer three layers, but also these layers can be implemented as multilayer respectively.
For example, can the spun bond nonwoven fabric lamination is two-layer above as the intermediate layer.Like this, can under uniform state, enhance productivity, make the spun bond nonwoven fabric of bigger weight per unit area.
In addition, implement for either party can the lamination two-layer above nonwoven of the same race of layer at least of upstream layer and downstream layer.Especially use under the situation of spun bond nonwoven fabric, sometimes fiber interweave inhomogeneously, produce unstablely, filter capability might the part deterioration.Therefore, by the two-layer spun bond nonwoven fabric of lamination, can obtain uniform spun bond nonwoven fabric.
Constituting under the situation in upstream layer and intermediate layer by above-mentioned multilayer, specifically be with two-layer spun bond nonwoven fabric as the intermediate layer, form one deck melt spraying non-woven fabrics in the one side, opposite side form two-layer melt spraying non-woven fabrics altogether five layers implement.Like this, more than the nonwoven layer lamination of same material is two-layer, congener laminate layers integral body had the advantage that has good uniformity, and can realize the homogenising of the dust collecting performance of whole filter, in addition, also was favourable under the situation of printing from the teeth outwards.
And, also can between the two-layer melt spraying non-woven fabrics that constitutes the intermediate layer, the dry type nonwoven bigger than the weight per unit area of this melt spraying non-woven fabrics (for example spun bond nonwoven fabric) be set.That is, have five layers altogether and implement as spun bond nonwoven fabric, melt spraying non-woven fabrics, spun bond nonwoven fabric, melt spraying non-woven fabrics, spun bond nonwoven fabric.Like this,, the shortcoming of the lower melt spraying non-woven fabrics of mechanical strength can be remedied, simultaneously, the mechanical strength of whole filter can be improved by spun bond nonwoven fabric is arranged on the center.
Below, the joint of the sheet 3a that should be made by a nonwoven of lamination with reference to Fig. 3 describes.Fig. 3 (A) is an expansion profile schema diagram of using junction surface 3b along the tube formation of the A-A line of Fig. 6, only illustrates rear piece portion 32.In this embodiment, use a layered product of three layers of formation of the downstream layer s2 that upstream layer s1 that spun bond nonwoven fabric forms, intermediate layer m that melt spraying non-woven fabrics forms and spun bond nonwoven fabric form, will be positioned at bag inner face side upstream side s1 and be positioned at the exterior side of bag downstream s2 alignment, engage.The joint that the method that engages preferably uses the bonding agent that utilizes hot-melt adhesive etc. to carry out, but also can use heat-sealing individually or simultaneously, make, various joint methods such as ultrasonic wave coating.G1 among the figure represents the joint method of this bonding agent etc.
Fig. 3 (B) is the expansion profile schema diagram along the A-A line of Fig. 6, and Fig. 3 (C) is the expansion profile schema diagram along the B-B line of Fig. 5, the structure of expression end closure 35,36.The sheet 3a that this end closure 35,36 uses three layers one above-mentioned nonwoven to make, upstream layer s1, the s1 of inner face side that will be positioned at the bag of front piece portion 31 and rear piece portion 32 aligns mutually, needn't engage with turning back.Joint method is to use bonding agent and heat-sealing simultaneously.Specifically be that bonding agent uses pressure adhesive and it is spread upon on the bonding part, simultaneously, the hot-die that adds by heat-sealing usefulness applies heat and pressure.This adds hot-die and preferably has concavo-convex embossing shape, but also can be to heat the device of pushing planely.Like this, the sheet 3a dissolving that nonwoven is made also is carried out heat-sealing, and simultaneously, pressure adhesive is pressurized, the performance adhesive property.
In addition, as pressure adhesive, when smearing, do not bring into play cementability and under dry status after the coating by the pressure adhesive of the performance cementability of exerting pressure, be desirable even do not made dirty or make dirty also aspect the cleaning easily by bonding agent at production line.
End closure 35,36 to the circumference of the sheet 3a that makes as nonwoven is implemented above-mentioned heat-sealing, even at this circumference, is preferably near the part o in its outside with near heat-sealing density (embossing area occupation ratio) is changed.Specifically be, make part o near the outside sparse (for example 3～10%), make near inboard part i dense (for example 15～30%).In addition, also can be opposite, make the part o in the close outside dense, make near inboard part i sparse.Like this, poor by density is set, even under the situation of the power that applies blast etc. on the heat seal lands strongly, also can prevent breaking of filter, simultaneously, can realize high-intensity heat-sealing.In addition, heat-sealing density (embossing area occupation ratio) inboard and the outside is not limited to carries out two retaining variations, can change gradually, can seal the most inboard planarly.In addition, also above-mentioned bonding agent g2 can be arranged to expose from the inside of in the inner part part i.Like this, form and have only the part of bonding agent, highdensity heat seal lands, low-density heat seal lands, can form the structure of strengthening gradually along with to the inboard counter stress of bag.
From forming the joint of the sheet 3a that nonwoven makes by this bonding agent, preferably make the layer that forms the composition surface, being that upstream layer s1 is than downstream layer s2 thin (in other words weight per unit area is little).Like this, by form the upstream layer s1 that directly is coated with bonding agent than unfertile land, bonding agent arrives intermediate layer m or downstream layer s2 easily.Its result, be not only upstream layer s1, intermediate layer m or preferably downstream layer s2 also can strengthen by bonding agent, can prevent splitting.
In above-mentioned example, though utilize the bonding of bonding agent and heat-sealing simultaneously, but also can use various joint methods individually or simultaneously, as use bonding agent simultaneously and make, bonding agent and heat-sealing and ultrasonic wave coating, use bonding agent separately, use separately and make, use ultrasonic wave coating etc. separately.
As mentioned above, the present invention can provide the dust catcher filter of no crotch portion, the breakage that can positively launch and be not easy to produce filter.Can provide that not only to have eliminated especially be the shortcoming of the existing disposable universal filter that comes of center development with paper, and solve the desirable filter of new problem.
Claims (15)
1. dust-collecting filter for electrical cleaner, have dust collecting opening (31a) filter body (3) so that the mode of the aligned in position of dust collecting opening (31a) and flexible pipe introducing port (21) be installed on the tabular installation hardboard (2) with flexible pipe introducing port (21), this filter can load and unload and be installed in freely in the dust storage chamber that is arranged on the electric dust collector, it is characterized in that
Filter body (3) is to be the pocket that sheet (3a) that 15～65% nonwoven is made constitutes by tension fracture elongation rate, and, by the front piece portion (31) of this pocket and the circumference of rear piece portion (32) crotch portion is not set are not each other engaged, the no crotch portion pocket that formation is made of front piece portion (31) and rear piece portion (32)
This filter body (3) has crease line (37), (38), by this crease line (37), (38), filter body (3) divide is formed non-reflex part (30) and reflex part (33), (34), reflex part (33), (34) are folded back the rear side of non-reflex part (30) along crease line (37), (38)
When above-mentioned dust collecting opening (31a) was formed on the non-reflex part (30) of substantial middle of front piece portion (31), above-mentioned installation hardboard (2) was installed on the non-reflex part (30) of substantial middle of this front piece portion (31).
2. dust-collecting filter for electrical cleaner as claimed in claim 1 is characterized in that, it is the flexibility of 100～10mm that the sheet that nonwoven is made (3a) has the bending resistance degree that is formed by 45 degree cantilever methods.
3. dust-collecting filter for electrical cleaner as claimed in claim 1 or 2, it is characterized in that, the front piece portion (31) of filter body (3) and rear piece portion (32) are by the front of the cylindrical body of both ends open, the back constitutes respectively, this cylindrical body forms each other by the side that joint has the sheet (3a) that the nonwoven of flexibility makes, front piece portion (31) and rear piece portion (32) are by folding part (39), (39) and closure (35), (36) joint forms, folding part (39), (39) form closure (35) by being folded to form the sheet of making for the nonwoven of cylindrical body (3a), (36) form by the two ends that engage cylindrical body.
4. as each described dust-collecting filter for electrical cleaner in the claim 1 to 3, it is characterized in that, filter body (3), its be provided with above-mentioned dust collecting opening (31a) substantial middle non-reflex part (30) all be reflex part (33), (34), (43), (44) up and down.
5. as the dust-collecting filter for electrical cleaner described in the claim 1 to 4 each, it is characterized in that, the circumference joint each other of front piece portion (31) and rear piece portion (32) be the sheet (3a) made of the not overlapping nonwoven that turns back inner face side each other and any at least mode that engages by heat-sealing and bonding agent.
6. as each described dust-collecting filter for electrical cleaner in the claim 1 to 5, it is characterized in that, the circumference joint each other of front piece portion (31) and rear piece portion (32) is the mode that the inner face side of the sheet (3b) made of the not overlapping nonwoven that turns back seals each other, this heat-sealing is the heat-sealing of heating the embossing that carries out by by the protuberance with the outstanding setting of regulation density, the mutual heat-sealing portion of circumference has near the inboard heat seal lands of bag central authorities with near the outside heat-sealing portion of end, and the above-mentioned density of the heat-sealing of inboard heat-sealing portion is greater than the above-mentioned density of outside heat-sealing.
7. as each described dust-collecting filter for electrical cleaner in the claim 1 to 6, it is characterized in that, the front piece portion (31) of filter body (3) and rear piece portion (32) are only formed by the sheet (3a) that above-mentioned one nonwoven that has a laminar structure with flexibility is made, and do not add other plates on positive and negative any one side of the sheet that this nonwoven is made.
8. as each described dust-collecting filter for electrical cleaner in the claim 1 to 7, it is characterized in that, constitute sheet (3a) that the nonwoven of filter body (3) makes and be the nonwoven of at least three layers of lamination upstream layer (s1), downstream layer (s2) and intermediate layer (m), upstream layer (s1) is set on the face of inflow side of the air that contains dust, downstream layer (s2) is set on the face of outflow side, intermediate layer (m) is set between upstream layer (s1) and the downstream layer (s2)
Intermediate layer (m) is made of the one deck at least that contains melt spraying non-woven fabrics, and upstream layer (s1) and downstream layer (s2) are made of the dry type nonwoven of weight per unit area greater than the melt spraying non-woven fabrics in intermediate layer.
9. dust-collecting filter for electrical cleaner as claimed in claim 8, it is characterized in that, upstream layer (s1) and downstream layer (s2) are made of spun bond nonwoven fabric, and the spun bond nonwoven fabric of the melt spraying non-woven fabrics of intermediate layer (m) and upstream layer (s1) and downstream layer (s2) is arranged laminating by lamination by string.
10. dust-collecting filter for electrical cleaner as claimed in claim 8 or 9 is characterized in that the average fiber of the melt spraying non-woven fabrics of intermediate layer (m) directly is 0.1～10 μ m, and the weight per unit area of one deck is more than or equal to 1g/m at least
2, not enough 5g/m
2, the average fiber of the nonwoven of upstream layer (s1) and downstream layer (s2) directly is 10～30 μ m, the weight per unit area of one deck is more than or equal to 5g/m at least
2, not enough 40g/m
2
11., it is characterized in that either party the two-layer above nonwoven not of the same race or of the same race of layer lamination at least of upstream layer (s1) and downstream layer (s2) forms as each described dust-collecting filter for electrical cleaner in the claim 8 to 10.
12., it is characterized in that lamination two-layer above melt spraying non-woven fabrics in intermediate layer (m) forms as each described dust-collecting filter for electrical cleaner in the claim 8 to 11.
13. dust-collecting filter for electrical cleaner as claimed in claim 11 is characterized in that, between the two-layer melt spraying non-woven fabrics that constitutes intermediate layer (m) the dry type nonwoven bigger than the weight per unit area of this melt spraying non-woven fabrics is set.
14. as each described dust-collecting filter for electrical cleaner in the claim 1 to 7, it is characterized in that, constitute sheet (3a) that the nonwoven of filter body (3) makes and be the nonwoven of at least three layers of lamination upstream layer (s1), downstream layer (s2) and intermediate layer (m), upstream layer (s1) is set on the face of inflow side of the air that contains dust, downstream layer (s2) is set on the face of outflow side, intermediate layer (m) is set between upstream layer (s1) and the downstream layer (s2)
Intermediate layer (m) is made of the one deck at least that contains the dry type nonwoven that is made of smaller or equal to the synthetic fibers of 10 μ m average fiber footpath, upstream layer (s1) and downstream layer (s2) are made of the dry type nonwoven, and this dry type nonwoven constitutes by having the synthetic fibers of average fiber footpath greater than the dry type nonwoven of intermediate layer (m).
15. as each described dust-collecting filter for electrical cleaner in the claim 8 to 14, it is characterized in that, the circumference joint each other of front piece portion (31) and rear piece portion (32) be the sheet (3a) made of the not overlapping nonwoven that turns back inner face side each other and the mode that engages by bonding agent, upstream layer (s1) is thinner than downstream layer (s2).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003178048A JP3558290B1 (en) | 2003-06-23 | 2003-06-23 | Dust collection filter for vacuum cleaner |
| JP178048/2003 | 2003-06-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1774199A true CN1774199A (en) | 2006-05-17 |
| CN100415149C CN100415149C (en) | 2008-09-03 |
Family
ID=32959737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800103623A Expired - Fee Related CN100415149C (en) | 2003-06-23 | 2004-04-26 | Dust-collecting filter for electrical cleaner |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3558290B1 (en) |
| KR (1) | KR101093035B1 (en) |
| CN (1) | CN100415149C (en) |
| WO (1) | WO2004112560A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111214168A (en) * | 2018-11-23 | 2020-06-02 | 余姚市雷阵雨电器有限公司 | Intelligent handheld dust collector |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4900675B2 (en) * | 2006-07-05 | 2012-03-21 | 金星製紙株式会社 | Composite nonwoven fabric for air filter |
| ES2552640T3 (en) * | 2010-11-10 | 2015-12-01 | Eurofilters Holding N.V. | Vacuum filter bag folded |
| DK3791766T3 (en) * | 2019-09-16 | 2022-07-11 | Electrolux Ab | VERSATILE DUST CONTAINER FOR A VACUUM CLEANER |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6033950U (en) * | 1983-08-12 | 1985-03-08 | ニチパック株式会社 | Dust collection paper bag for vacuum cleaner |
| JPH08134761A (en) * | 1994-11-07 | 1996-05-28 | Mitsui Petrochem Ind Ltd | Nonwoven fabric and its production |
| FR2750314B1 (en) * | 1996-06-26 | 1998-10-16 | Laplace Xavier | DUST FILTER FOR VACUUM CLEANER AND EQUIPPED VACUUM CLEANER |
| JP2000000195A (en) * | 1998-06-17 | 2000-01-07 | Kuraray Co Ltd | Dust collecting bag of vacuum cleaner |
| JP4258920B2 (en) | 1998-11-10 | 2009-04-30 | 東レ株式会社 | Dust bag for vacuum cleaner |
| JP2000350685A (en) | 1999-06-14 | 2000-12-19 | Hitachi Ltd | Dust collecting filter for vacuum cleaner |
| JP4357720B2 (en) | 1999-08-17 | 2009-11-04 | 東レ・ファインケミカル株式会社 | Dust collection bag for electric vacuum cleaner and electric vacuum cleaner comprising the same |
| JP3626673B2 (en) | 2000-09-04 | 2005-03-09 | アイム株式会社 | Dust bag for vacuum cleaner |
-
2003
- 2003-06-23 JP JP2003178048A patent/JP3558290B1/en not_active Expired - Fee Related
-
2004
- 2004-04-26 CN CNB2004800103623A patent/CN100415149C/en not_active Expired - Fee Related
- 2004-04-26 WO PCT/JP2004/005992 patent/WO2004112560A1/en not_active Application Discontinuation
- 2004-04-26 KR KR1020057017866A patent/KR101093035B1/en active IP Right Grant
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111214168A (en) * | 2018-11-23 | 2020-06-02 | 余姚市雷阵雨电器有限公司 | Intelligent handheld dust collector |
| CN111214168B (en) * | 2018-11-23 | 2021-11-09 | 宁波顺超轴承有限公司 | Intelligent handheld dust collector |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20060022641A (en) | 2006-03-10 |
| KR101093035B1 (en) | 2011-12-13 |
| JP3558290B1 (en) | 2004-08-25 |
| JP2009178172A (en) | 2009-08-13 |
| CN100415149C (en) | 2008-09-03 |
| WO2004112560A1 (en) | 2004-12-29 |
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