WO2004112560A1 - 電気掃除機用集塵フィルタ - Google Patents
電気掃除機用集塵フィルタ Download PDFInfo
- Publication number
- WO2004112560A1 WO2004112560A1 PCT/JP2004/005992 JP2004005992W WO2004112560A1 WO 2004112560 A1 WO2004112560 A1 WO 2004112560A1 JP 2004005992 W JP2004005992 W JP 2004005992W WO 2004112560 A1 WO2004112560 A1 WO 2004112560A1
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- WO
- WIPO (PCT)
- Prior art keywords
- sheet
- layer
- filter
- nonwoven fabric
- vacuum cleaner
- Prior art date
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Classifications
-
- 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
-
- 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
-
- 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
Definitions
- the present invention relates to an improvement in a dust collecting filter for a vacuum cleaner.
- This vacuum cleaner dust filter includes a filter body a having a dust collection port a1 in a front sheet part a2, and a plate-shaped mounting board b made of cardboard which is detachably attached to the vacuum cleaner.
- This filter body a is composed of a filter body having front and rear sides a2, a4 and left and right sides a3, a3, in a tubular state having upper and lower ends opened.
- the left and right sides a 3 and a 3 are each mountain-folded from the front seat part a 2 and the rear seat part a 4, and the left and right sides a 3 and a 3 are each folded in two at the center valley fold d 3.
- the gore parts d and d are formed by folding the same amount between the sheet part a2 and the rear sheet part a4, and the dust collecting ports a1 are arranged at the left and right centers of the front sheet part a2 and the filter body a. The whole is flattened slightly wider than the mounting sheet. Then, as shown in FIG. 10, the upper end is folded down and adhered to form an upper end closed portion e1, and the lower end of the bag c is folded up and adhered to form the lower end.
- a closed part e2 is formed.
- the front sheet part a2 of the filter body a thus formed is fitted to the mounting board b, the dust collecting port a1 of the front sheet part a2 is matched with the hose introduction port b1 provided on the mounting board b.
- the front sheet part a 2 of the filter body a protrudes from each of the left, right, upper and lower ends of the mounting board b.
- the filter body a protruding from each of the upper and lower ends of the paper b is folded rearward from each of the upper and lower ends of the mounting board b to form a compact flat body as a whole.
- the dust collecting filter for the vacuum cleaner can be attached to the dust collecting chamber and the vacuum cleaner
- the filter body a expands to the inner wall of the dust collection chamber due to the suction action of, and dust can be collected and stored.
- the gore portions d, d are formed so that each of the left and right side surfaces a3, a3 is folded between the front sheet portion a2 and the rear seat portion a4, the gore portions d, d are formed.
- the process and time are required to form d, and the sheet may be damaged during the formation process of the valley portion and the valley-folded portion d3, resulting in defective products.
- this defect is in the gore portion d, there is a problem that it is difficult to be found by inspection or the like.
- the shape of the dust collecting chamber of the vacuum cleaner differs depending on the manufacturer and model of the inserted vacuum cleaner.
- the vacuum cleaner dust collecting filter When the vacuum cleaner dust collecting filter is installed in the dust collecting chamber from the lower end side of the mounting sheet b In some cases, it is necessary to attach from the right end of the mounting sheet b.
- the protruding part ⁇ of the filter body a becomes an obstacle, and the protruding part f must be bent backward so that installation is troublesome and time-consuming.
- a user mistakenly attaches the mounting board b together with the protruding portion f at the time of the mounting and in this case, the filter body a cannot be expanded in the dust collection chamber. . In this case, for example, as shown in FIG.
- the filter main body a is attached to the mounting base b so as to be deflected to the left side so that the filter main body a does not protrude from the right end of the mounting base b.
- the filter body a is biased to the left of the dust collection chamber 102 of the vacuum cleaner 100.
- the entire right end of the filter body a does not hit the inner wall 102 of the dust collection chamber 102, and the dust collection chamber 1
- a gap 103 was generated between the inner wall 102 of the filter 102 and the filter body a during use.
- the applicant of the present application has proposed the invention described in Japanese Patent Application Laid-Open No. 2002-65530 to achieve the following three objects.
- the first object is to provide a dust collecting filter for a vacuum cleaner in which the operation of turning back the closing portion is easy and there is no possibility that a gap is generated in the closing portion.
- the second object is to provide a dust filter for a vacuum cleaner that can be easily folded in a short time and manufactured at a low cost.
- a third object is that the folding operation of the upper end closing portion and the lower end closing portion is easy, but there is no possibility that a gap is generated in the upper end closing portion and the lower end closing portion, and it can be manufactured at low cost. Accordingly, the present invention provides a dust collecting filter for a vacuum cleaner which can be easily attached to various types of vacuum cleaners and does not have a risk of the main body of the filter breaking during use.
- the dust collecting filter for a vacuum cleaner is provided with a front sheet portion and a rear sheet portion.
- the filter body is formed by the front sheet portion and the rear sheet portion. More specifically, a front sheet portion and a rear sheet portion of a tubular body having both ends open formed by connecting the side edges of a series of sheet-like members in which the front sheet portion and the rear sheet portion of the filter body are connected to each other.
- the front sheet portion and the rear sheet portion are each formed by folding a sheet-like member formed into a cylindrical body, and each of both ends of the opened cylindrical body is folded back and adhered. It is joined by the closed part formed by.
- the filter body has a fold line, and the fold line defines the filter body into a non-folded portion and a folded portion, and the folded portion is formed along the fold line at a rear side of the non-folded portion. It is a folded back.
- the filter body when mounting paper is attached to the fixed part of the dust collection chamber, the filter body may also be pinched, and as a result, it does not spread well in a bag shape and the filter breaks. If you do, you will have problems. Therefore, the present invention solves the above first to third problems and can surely spread the filter, and furthermore, a filter for a vacuum cleaner in which the filter is hardly damaged. It is intended to be provided. DISCLOSURE OF THE INVENTION.
- the invention according to claim 1 of the present application is characterized in that the filter main body 3 having the dust collection port 3 1a is provided with the plate-shaped mounting sheet 2 having the hose introduction port 21 and the dust collection port 3.
- a dust collecting filter for an electric vacuum cleaner which is mounted so that the hose inlet (2) is aligned with the hose inlet (2) and can be detachably mounted in a dust collecting chamber provided in the electric vacuum cleaner.
- the peripheral portions of the portions 32 are joined without providing a gore portion, so that the front seat portion 31 and the rear seat portion 32 form a bag-like body without a gore portion.
- Evening body 3 has fold lines 3 7, 3 8. By these fold lines 3 7, 3 8, It is formed into a non-folded part 30 and a folded part 33, 34. The folded parts 33, 34 are folded back along the fold lines 37, 38 to the rear side of the non-folded part 30.
- the dust collection port 3 la is formed in the non-return portion 30 substantially at the center of the front sheet portion 31, and is formed on the non-return portion 30 substantially at the center of the front sheet portion 31.
- a dust collecting filter for a vacuum cleaner wherein the dust collecting filter is provided with the mounting paper 2 attached.
- the tensile elongation at break is based on JISP 8113.
- This standard covers paper and paperboard, but in the present application, the standard is applied to nonwoven fabric.
- the invention according to claim 2 of the present application is characterized in that the nonwoven fabric sheet 3a has a flexibility of 100 to 10 mm by a 45-degree cantilever method.
- the front sheet portion 31 and the rear sheet portion 32 are formed by folding a tubular non-woven sheet, and the front sheet portion 31 and the rear sheet portion 32 are formed from the front and rear surfaces of a tubular body having both ends opened.
- a dust collecting filter for machine In the first to third inventions of the present application configured as described above, the folded portions 33, 34 are simply provided along the fold lines 37, 38 on the rear side of the non-folded portion 30.
- the folded portions 33, 34 can be easily formed, and the left and right sides are folded between the front seed portion and the rear sheet portion of the filter body 3 as in the conventional case.
- a gore is formed by using a ridge, there is no displacement between the mountain-folded portion from the rear sheet portion and the mountain-folded portion from the front sheet portion, so that the filter body 3 can be easily manufactured. it can.
- the folded portions 33, 34 are formed by folding back along the fold lines 37, 38 behind the non-folded portion 30, the upper end closing portion 35, and the lower end of the filter body 3 are formed.
- the front closing part 36 is formed by folding the left and right sides between the front and rear seats of the filter body 3 to form a gore part as in the prior art. Even if the four sheets of the back sheet part 3 2 and the two folded pieces are not overlapped and folded, only the two sheets of the front sheet part 31 and the back sheet part 32 need to be overlapped and folded. Easy to wrap.
- the upper end closing portion 35 and the lower end closing portion 36 can be securely adhered in a short time, and the folded pieces that are folded back as in the case of the conventional four sheets being folded and folded are intended to return to the original state.
- the elasticity prevents the adhesive from peeling off and creating a gap.
- the tensile elongation at break of the nonwoven fabric sheet 3a constituting the filter body 3 is set at 15 to 65%, so that the nonwoven sheet 3a may get caught in the unevenness in the dust collection chamber of the vacuum cleaner. Even if it is attached while being sandwiched between the fixing board and the mounting sheet, it can be easily detached from the irregularities and the fixing part without breaking due to the high elongation, and it becomes a good bag shape. It can spread.
- the filter body 3 is constituted by a nonwoven fabric sheet 3a having a flexibility of 10 Omm or less according to a 45-degree force-inch lever method. Even if the gusset part is not provided and the state shown in Fig. 12 is formed, the filter body 3 is sufficiently flexible and the corners are not caught by the sufficient flexibility.
- the filter having the various effects described above, which can be expanded, can be put to practical use in a true sense.
- the front sheet portion 31 and the rear sheet portion 32 of the filter body 3 are connected to each other by connecting the sides of a series of sheet-like members.
- the filter body 3 is configured such that the upper, lower, left, and right sides of the substantially central non-returned portion 30 provided with the dust collection port 3 la are all folded-back portions 33, 34, 43. 44.
- a dust collector filter for a vacuum cleaner according to any one of claims 1 to 3, wherein the dust filter is provided.
- the filter main body 3 having a sufficient volume can be obtained even if there is no gore.
- the upper, lower, left, and right ends of the non-folded portion 30 can be prevented from protruding from the mounting board 2.
- it can be easily attached without disturbing the filter body 3. be able to.
- it is possible to reduce the possibility that the user mistakenly attaches the filter main body 3 together with the mounting board 2 at the time of installation.
- the joining of the peripheral portions of the front sheet portion 31 and the rear sheet portion 32 is performed without overlapping the inner surface sides of the nonwoven fabric sheet 3 a and folding the same.
- filters that have the same volume can be produced with less sheet usage because they are not folded back.
- the joining of the peripheral portions of the front sheet portion 31 and the rear sheet portion 32 is performed without overlapping and folding the inner surface sides of the nonwoven fabric sheet 3a.
- This heat seal is an embossed heat seal that is performed by heating at a convex portion that protrudes at a predetermined density, and the heat seal portion at the periphery is the inner heat near the center of the bag. Seal part and edge-side outer heat
- the electric cleaning device according to any one of claims 1 to 5, further comprising a seal portion, wherein the density of the heat seal of the inner heat seal portion is higher than the density of the outer heat seal.
- Heat sealing is performed by pressing a heated roll with irregularities onto a non-woven sheet that can be heat-sealed at a predetermined pressure.
- the density (emboss area ratio) of the heat seal increases. Accordingly, the heat energy per unit area of the protrusion decreases, and as the density decreases, the heat energy per unit area of the protrusion increases.
- the higher the heat seal density the gentler the heat seal can be.The lower the density, the stronger the heat seal.
- the material is severely deteriorated and is vulnerable to stress. Therefore, if a large force is applied instantaneously, the material may be broken from the heat seal portion.
- the filter when the filter swells and collects dust, it receives a large wind pressure from the inside to the outside of the bag.
- the force concentrates on the joint, but if a small heat seal is used, the filter material may be broken from the heat seal as described above. Therefore, for the inner heat seal part that receives wind pressure first, by increasing the density of the heat seal, the deterioration of the material is minimized, and the outer heat seal is prevented while preventing the crushing of the material.
- the metal part by reducing the density and performing strong heat sealing, the whole is hard to tear and achieves a strong joint
- the front sheet portion 31 and the rear sheet portion 32 of the filter main body 3 are each composed of the above-mentioned single-layer nonwoven fabric sheet 3 having flexibility.
- the present invention provides a dust collecting filter for a vacuum cleaner described in (1) above, whereby a more flexible and easily spreadable filter can be provided.
- the filter is composed of two sheets, an inner sheet and an outer sheet, when the filter spreads like a bag, the inner and outer sheets spread differently, and the outer sheet is wider than the inner sheet.
- the situation that the sheet is not spread may occur, such a fear can be eliminated by forming the filter body only with one flexible nonwoven fabric sheet 3a having a laminated structure.
- FIG. 1 is a front view of one embodiment of a dust collecting filter for a vacuum cleaner according to the present invention.
- Fig. 2 is a rear view of the same festival.
- FIG. 3A is an enlarged schematic cross-sectional view of the joint for forming a cylinder along the line AA in FIG. 6, and FIG. 3B is an enlarged schematic cross-sectional view along the line AA in FIG. Yes, (C) is an enlarged schematic cross-sectional view along the line BB in FIG.
- FIG. 4 is an explanatory diagram of a manufacturing process of the filter.
- FIG. 5 is a front view of the filter in a deployed state.
- FIG. 6 is a rear view of the filter in a deployed state.
- FIG. 7 is a cross-sectional view of a main part in a state where the filter is mounted on a dust collection chamber of a vacuum cleaner and is inflated.
- FIG. 8 is an explanatory view of a state in which the filter is erroneously attached to a dust collecting chamber of a vacuum cleaner
- (B) is an explanatory view of a state in which the error is corrected.
- FIG. 9A and 9B show a conventional filter, wherein FIG. 9A is a front view before the upper and lower parts of the filter body are folded, and FIG. 9B is a sectional view taken along the line VIII-VIII.
- FIG. 10 is a sectional view taken along the line IX-IX of FIG.
- FIG. 11 (A) is a cross-sectional explanatory view of a state in which the conventional filter body is mounted on the mounting board so as to be deviated to the left, and (B) shows the filter body inflated from the same state.
- FIG. 12 is an explanatory view showing a state in which another conventional filter is attached to a dust collection chamber.
- FIG. 1 is a front view of one embodiment of a dust collecting filter for a vacuum cleaner of the present invention
- FIG. 2 is a rear view thereof
- FIG. 3 (A) is a diagram for forming a cylinder along line A-A in FIG. Fig. 3 (B) is an enlarged schematic cross-sectional view taken along line A-A of Fig. 6, and
- Fig. 3 (C) is an enlarged cross-sectional schematic view taken along line B-B of Fig. 5. It is an expanded sectional schematic diagram.
- the dust collecting filter 1 for a vacuum cleaner of the present invention is a common-use disposable filter that can be used for a plurality of types of vacuum cleaners in several or one company's vacuum cleaners. And three.
- the mounting board 2 is formed of a rectangular plate-like body made of cardboard. Should not be understood to be limited to At the approximate center of the mounting sheet 2, a circular hose inlet 21 for introducing the dust suction hose 101 (shown in FIG. 7) of the vacuum cleaner 100 is formed. At the upper end side of the mounting sheet 2, a plurality of cut pieces 22 and 22 are formed so as to be cut by a plurality of cut lines 22a and 22a. The cutting line 2 2a and 2 2a are cut off as appropriate in accordance with the dust collecting chamber 10 2 (shown in FIG. 7) of the dust collecting chamber 102 so that the mounting sheet 2 can be connected to the various dust collecting chambers 102. It is designed so that it can be formed into a size that can fit. A notch 23 is formed on the lower end side of the mounting board 2, and the notch 23 is adapted to be attached to a vacuum cleaner having a positioning projection. .
- notch groove forming portions 24 and 25 are formed by cutting lines 24 a and 25 a so as to be cut off.
- a notch groove can be formed on the left end side of the mounting board 2 so that it fits a vacuum cleaner with positioning groove fittings. It is made to be attached. Note that the mounting sheet 2 is
- the filter body 3 is composed of a front sheet part 31 and a rear sheet part 32 joined to a peripheral part of the front sheet part 31. In the present embodiment, the filter body 3 is composed of a continuous series of nonwoven fabric sheets 3a.
- the non-woven sheet 3a has the flexibility to be deformed freely and to be folded or expandable from the folded state. It is a sheet for a filter medium that can be filtered.
- the series of nonwoven fabric sheets does not mean that the front sheet part 31 and the rear sheet part 32 are composed of two separate sheets, but the front sheet part 31 and the rear sheet. It means that the part 32 is composed of a continuous nonwoven fabric sheet. Therefore, it is most preferable to use only one sheet of non-woven fabric.However, a sheet of a plurality of filter media sheets of the same or different kind, such as two or three sheets, may be used. It is sufficient that these sheet members are continuous from the front sheet portion 31 to the rear sheet portion 32. Furthermore, when a plurality of sheets are stacked, at least one of the sheets is moved from the front sheet portion 31 to the rear sheet portion.
- the nonwoven fabric sheet 3a is provided with a dust collection port 31a.
- the dust collection port 31 a in this embodiment has a smaller diameter than the hose introduction port 21 of the mounting board 2. And a plurality of radial cuts 3 1... 3 1b.
- each of the left and right sides of the nonwoven fabric sheet 3a is mountain-folded at substantially the same distance from the dust collection port 31a and folded back, and the sides are tied together. Are joined to form a tube.
- the joint between the side sides is referred to as a joint 3b for forming a cylinder.
- the nonwoven fabric sheet 3a is made into a tubular body having upper and lower ends opened, and the front sheet portion and the rear sheet portion of each tubular body are The front sheet 31 and the rear sheet 32 of the filter body 3 are used. Thereafter, the open ends of the tubular body composed of the front seat portion 31 and the rear seat portion 32 are joined in a state where the front seat portion 31 and the rear seat portion 32 are overlapped. This joint is to close and close the open end of the tubular body.
- the end closures 35, 36 (when distinguishing between upper and lower sides, upper end closure 35 and lower end closure 3 6). The details of the joining structure of the tube forming joining portion 3b and the end closing portions 35, 36 will be described later.
- the front seat portion 31 and the rear seat portion 32 of the bag body 3 in this embodiment are joined by the mountain fold portions 39, 39 in which the left and right sides are mountain-folded, and the upper and lower ends overlap. They are joined by an upper end closing part 35 and a lower end closing part 36 joined together.
- the position of the joining portion 3b for forming the cylinder, which is obtained by folding and bonding the nonwoven fabric sheet 3a, is at the center of the rear sheet portion 32 and is parallel to the mountain fold portions 39, 39.
- the present invention is not limited to this, and the present invention is not limited to the form in which the tube forming joint 3b is formed along the vertical direction, and may be formed along the oblique direction.
- the filter body 3 is not limited to one formed of one nonwoven fabric sheet 3a, and may be, for example, two nonwoven fabric sheets joined together, and may be changed as appropriate.
- a left fold line 37 and a right fold line 38 are provided on the left side and the right side of the filter body 3 as shown in FIGS.
- the left fold line 37 is for folding back the left part of the filter body 3 and is a predetermined distance from the left end of the filter body 3.
- the right fold line 38 connects the right part of the filter body 3. It is formed from the upper end closing part 35 to the lower end closing part 36 along the vertical direction in the left direction at a predetermined distance from the right end of the filter body 3.
- the fold line 3 7 and the right fold line 3 8 divide the filter body 3 into a left fold portion 33 on the left side, a right fold portion 34 on the right side, and a non-fold portion 30 therebetween. Is formed. Then, the left folded portion 33 is folded back from the left fold line 37 to the rear side of the non-folded portion 30.
- the left side and the right side of the filter body 3 are overlapped with the front sheet part 31 and the rear sheet part 32 in a state where the two parts are superimposed, and both are located on the rear side and the rear sheet part 32 side. It is coordinated and folded.
- the width of the right folded portion 34 and the width of the left folded portion are set substantially equal, and the folded left and right folded portions 39, 3 9 is located.
- the width of the right turn part 3 4 is set smaller than the width of the left turn part 33, and the left and right lengths are set such that the turn amount of the right turn part 34 is smaller than the turn amount of the left turn part 33. It may be different.
- an upper fold line 41 and a lower fold line 42 are provided on the upper side and the lower side of the filter body 3 as shown in FIG.
- the upper fold line 41 is for folding the upper part of the filter body 3 downward and rearward, and is formed from the left end to the right end along the left-right direction at a lower position separated from the upper end of the filter body 3 by a predetermined distance.
- the lower fold line 42 is used to fold the lower part of the filter body 3 upward and rearward, so that the lower fold line 42 is located at a lower position at a predetermined distance from the lower end of the filter body 3.
- the filter body 3 is formed by the upper and lower fold lines 43 and the lower and lower folds 44 between the upper and lower fold lines 41 and 42.
- a non-bent portion 30 is formed.
- the upper folded portion 3 3 and the lower folded portion 4 4 are not folded from the upper folded line 4 1 and the lower folded line 4 2 after the left folded portion 3 3 and the right folded portion 3 4 are folded. It is folded back to the rear of the bent portion 30. Therefore, when each of the upper folded portion 43 and the lower folded portion 44 is folded, the upper and lower portions of the folded left folded portion 33 and the right folded portion 34 must be folded at the same time. Become. As a result, the filter body 3 is folded flat at the front, rear, left, and right portions, and is stored and carried in that state. The folding of the upper folded portion 43 and the lower folded portion 44 may be performed before the left folded portion 33 and the right folded portion 34 are folded.
- the unfolded part 30 of the front sheet part 31 of the filter body 3 formed in a flat shape in this way is attached to the rear sheet part of the mounting board 2, and the dust collection port 3 1a of the filter body 3 is attached. It is installed so that it is centered on the hose inlet 21 of the mount 2. Specifically, the two are fixed with an adhesive, but they are not glued to the entire non-bent part 30 but are glued only around the dust collecting port 31a and the hose inlet 21. It is desirable to leave a non-adhered portion between the outer periphery of the bonded portion and the outer periphery of the non-folded portion 30. Also, it is most desirable that the filter body 3 does not protrude from the rectangular outer peripheral line of the mounting board 2 when viewed from the front.
- the folded portions 3 3, 3 4, 4 3 and 4 4 may be simply folded back, and the fill 3 As in the case where the gore portion is formed by being folded between the front sheet portion and the rear seat portion, a positional shift between the mountain fold portion from the rear seat portion and the mountain fold portion from the front seat portion may occur. And can be easily formed in a short time, and can be manufactured at low cost.
- the upper end closing portion 35 and the lower end closing portion 36 of the filter main body 3 are connected to each other as in the case where a gore portion is formed between the front seat portion and the rear seat portion of the conventional filter main body 3.
- the filter body when using the filter body in any direction of the mounting board 2 in the dust collecting chamber 102 of the vacuum cleaner 100, since the folded part is not projected from the mounting board 2, the filter body is not used. 3 can be easily installed without disturbing. In addition, it is possible to prevent the user from mistakenly attaching the filter main body 3 together with the mounting board 2 during the mounting. Therefore, even if the dust collection chamber 102 of the vacuum cleaner 100 differs depending on the manufacturer or model, it can be easily installed in accordance with the difference.
- the dust filter 1 for the vacuum cleaner attached to the dust collecting chamber 102 of the vacuum cleaner 100 expands due to the suction action of the vacuum cleaner 100, the mounting sheet 2 and the dust collecting port 3 1 Since a is provided substantially at the center of the filter body 3, it can be spread substantially evenly in the dust collection chamber of the electric sweeper.
- the shape of the filter body 3 (the shape of the front sheet portion 31 and the shape of the rear sheet portion 32) is not only square but also rectangular. It can be implemented by changing to other polygons and the like.
- the position of the hose inlet 21 of the mounting board 2 may be provided at a position displaced from the center of the mounting board 2 such as upper, lower, left and right, in addition to being provided at substantially the center of the mounting board 2. In this way, by displacing the position of the hose inlet 21 of the mounting board 2 from the center, depending on the type of the vacuum cleaner, it may be possible to easily attach the hose to the vacuum cleaner.
- the dust collection port 31a of the filter body 3 is formed in the center of the filter body 3 (the center of the front sheet portion 31), or may be provided at a position displaced from the center, such as up, down, left and right. Also, the positional relationship between the mounting board 2 and the filter body 3
- the nonwoven fabric sheet constituting the above-mentioned filler body 3 will be described.
- the nonwoven fabric sheet is optimally implemented as a dust collecting filter having the above structure, but can also be implemented as another disposable bag-shaped vacuum cleaner filter.
- the present invention can be used for a device having a plate-shaped mounting sheet mounted in a dust collecting chamber of a vacuum cleaner and a filter body mounted on the back surface of the mounting sheet.
- the nonwoven fabric sheet When the nonwoven fabric sheet is implemented as the filter body 3, the nonwoven fabric sheet captures and collects dust sucked from the dust collection port 3la, and the inner side of the bag is the upstream side, and the outer side of the bag is the downstream side.
- the nonwoven fabric sheet comprises a nonwoven fabric for a filter constituting the filter main body 3, an upstream layer disposed on an inflow side surface of dust-containing air, and an outflow layer.
- a nonwoven fabric in which at least three layers of a downstream layer arranged on the side surface and an intermediate layer arranged between the upstream layer and the downstream layer are laminated, and the intermediate layer is formed of at least one layer including a melt blown nonwoven fabric. It is characterized in that the upstream layer and the downstream layer are made of a dry nonwoven fabric having a basis weight larger than the melt-opening nonwoven fabric of the intermediate layer.
- the above-mentioned upstream layer and downstream layer are made of spun-pound nonwoven fabric, and the melt-laid nonwoven fabric of the intermediate layer and the spunbonded nonwoven fabric of the upstream layer and the downstream layer are laminated by the inline lamination method.
- the average fiber diameter of meltblown nonwoven fabric of the intermediate layer is 0. 1 to 1 0 m at and at least one layer having a basis weight of less than 1 gZm 2 or 5 gZm 2, average fiber nonwoven upstream layer ⁇ beauty downstream layer diameter and wherein the at least one layer having a basis weight of from 1 0 to 3 0 is less than 5 g Zm 2 or 4 0 gZm 2.
- the nonwoven fabric for the filter constituting the filter main body 3 includes an upstream layer arranged on the surface on the inflow side of the dust-containing air, a downstream layer arranged on the surface on the outflow side, and
- a meltblown nonwoven fabric layer is used as an intermediate layer, and a spun-pound nonwoven fabric layer is formed as an upstream layer and a downstream layer on the upstream side and the downstream side.
- the non-woven fabric constituting these laminates is a dry non-woven fabric using synthetic fibers, particularly polyolefin fibers, and it is desirable to manufacture these non-woven fabric layers by laminating them in-line. Can also be manufactured.
- the tensile elongation at break of this nonwoven fabric sheet is specifically 15 to 65%, more preferably 30 to 50%, so that even if the dust collection chamber has irregularities, Even if it gets caught with the mounting sheet, it can spread well without breaking.
- Fig. 8 shows this state. As shown in Fig.
- the nonwoven fabric sheet made of such a laminate can be applied as a material having various softnesses.
- the softness by the cantilever method is used.
- the filter body is composed of a nonwoven sheet having a flexibility of 100 to 10 mm.
- the bag can be spread favorably in a bag shape.
- each layer will be described in detail. First, explaining from the middle layer, in order to efficiently collect fine dust such as mold and pollen, the average fiber diameter is 10 m or less (0.1 to 10 m).
- the basis weight can be about 1 to 40 gZm 2 , but if the basis weight is large, the pressure loss increases, so it is desirable to set the basis weight to less than 5 gZm 2 .
- two layers of a melt-blown nonwoven fabric having a basis weight of 1.5 to 4 gZm 2 are laminated and carried out, which is advantageous in terms of achieving both pressure loss and dust collection performance.
- the bag-shaped filter was spread well so that breakage did not occur even if there were projections, etc. There is a risk of lowering.
- the melt blown nonwoven fabric layer is manufactured by the method described below, and is made of extremely long ultrafine fibers. It is possible to provide a filter capable of obtaining a good dust collecting effect with little decrease in the dust collecting effect.
- Melt blown nonwoven fabric is made into a sheet by blowing a high-speed air stream heated against a fine stream of a molten thermoplastic resin, and stretching the molten resin by the action of the air stream to form ultrafine fibers.
- the thermoplastic resin constituting the nonwoven fabric of the intermediate layer includes polyolefin resins such as polypropylene resin and polyethylene resin, polyester resins such as polyethylene terephthalate, and crystalline resins such as polyamide resins such as nylon 6 and nylon 66.
- a polyolefin resin is preferable, and a polypropylene resin is particularly preferable from the viewpoint of mettle blown spinnability and water resistance.
- a polyolefin resin it may be a simple substance such as a polypropylene resin or a polyethylene resin, or a mixture of two or more kinds, and if necessary, may further include another ethylene resin, a propylene resin, or heat. It can also be used as a resin composition containing 50% by mass or less of a plastic elastomer or the like.
- the upstream layer and the downstream layer are made of a dry nonwoven fabric having a larger basis weight than the melt blown nonwoven fabric of the intermediate layer.
- the melt-blown non-woven fabric of the intermediate layer can collect fine dust efficiently by using ultra-fine single fibers, but has relatively low mechanical strength.
- the nonwoven fabric is damaged by suction dust on the upstream side, and in the worst case, a hole is formed.On the other hand, the single fiber of the nonwoven fabric peels off on the downstream side.
- new fine dust is generated by the filter by being directly discharged to the outside of the vacuum cleaner.
- a layer having a large average fiber diameter and high mechanical strength is arranged on the upstream side and the downstream side of the melt blown nonwoven fabric layer as the intermediate layer.
- the nonwoven fabric constituting the upstream layer and the downstream layer preferably has an average fiber diameter of 10 to 50 m and a basis weight of 5 gZm 2 or more and less than 40 gZm 2 . If the average fiber diameter / basis weight is too small, the mechanical strength decreases, and if the average fiber diameter is too large, the dust collecting function as a filter deteriorates.
- the nonwoven fabric constituting the upstream layer and the downstream layer is made of a dry nonwoven fabric, so that the entanglement of the fibers between the interlayer and the respective layers is good, the interlayer is less likely to be displaced, and a stable quality is used.
- the nonwoven fabric of the upstream layer and the downstream layer is preferably made of a thermoplastic resin, in particular, a polyolefin resin such as a polypropylene resin or a polyethylene resin, but may be formed of another material similar to the intermediate layer.
- a polyolefin resin it may be a simple substance such as a polypropylene resin or a polyethylene resin, or a mixture of two or more kinds. It can also be used as a resin composition containing 50% by weight or less of an elastomer or the like.
- a spunbonded nonwoven fabric can be used, but a nonwoven fabric other than spun pond, that manufactured by air laid, flash spinning, melt blown, spun lace, or another manufacturing method is used. You can also.
- the bonding type is embossed, calendar one, hot layer Thermal bonding such as adhesive bonding, mechanical confounding such as needle punching, and punching can be used, but from the viewpoints of productivity, air permeability, etc., thermal bonding using EMPOS is preferred.
- the in-line lamination method is adopted from the viewpoint of productivity and the aim of entanglement of fibers between each layer. It is desirable to do. Specifically, a melt-blown non-woven fabric is spun on a non-woven fabric of a downstream layer or an upstream layer (for example, spun-pound non-woven fabric), and a non-woven fabric of the upstream layer or downstream layer (for example, spun-pound non-woven fabric) is continuously formed in multiple stages. To manufacture. Then, in order to enhance the bonding property between the layers, an in-line lamination thermal bonding means, particularly a hot embossing method can be adopted.
- the hot embossing roll method lamination can be performed using a known laminating apparatus using an embossing roll and a flat roll.
- embossing roll embossing patterns of various shapes can be adopted, and there are a grid shape in which each welded portion is continuous, an independent grid shape, an arbitrary distribution, and the like.
- the area ratio of the emboss is preferably in the range of about 5 to 40%.
- the portion heated by the embossing increases the bonding strength, but decreases the air permeability.
- the non-heated part has a moderate air permeability and can perform a good filtration function as a filter.
- the embossing area ratio is about 5 to 40%, preferably 10 to 20%, and the heat embossing method is adopted, so that the strength and the strength are improved. It is possible to obtain a nonwoven fabric sheet for a filter having a filtering function.
- the intermediate layer may be formed by laminating two or more melt blown nonwoven fabrics.
- a meltblown nonwoven fabric layer having a relatively large basis weight can be produced in a uniform state with improved productivity.
- the same type of nonwoven fabric is used for at least one of the upstream layer and the downstream layer.
- the same type of nonwoven fabric is used. Of two or more layers.
- a spun-pound nonwoven fabric when used, the entanglement of the fibers may not be uniform and unevenness may occur, and the performance of the filter may be partially deteriorated. Therefore, a uniform spun-pound nonwoven fabric can be obtained by laminating two layers of spun-pound nonwoven fabric.
- the upstream layer and the intermediate layer are constituted by the above-mentioned plural layers, specifically, two layers of the spun-pound nonwoven fabric are used as the intermediate layer, and one layer of the meltblown nonwoven fabric on one side and two layers of the meltblown nonwoven fabric on the other side. It can be implemented as a total of 5 layers. In addition, each layer can be implemented as six layers of two layers.
- a dry nonwoven fabric having a basis weight larger than the meltblown nonwoven fabric may be coordinated between the two meltblown nonwoven fabrics constituting the intermediate layer. That is, a total of five layers of spun pond nonwoven fabric, melt blown nonwoven fabric, spunbond nonwoven fabric, melt blown nonwoven fabric, and spun pond nonwoven fabric can be provided. With this arrangement, the spun-pound nonwoven fabric is arranged at the center, thereby compensating for the disadvantage of the meltblown nonwoven fabric having low mechanical strength and improving the mechanical strength of the entire filter.
- FIG. 3 the joining of the single nonwoven fabric sheet 3a will be described.
- FIG. 3 (A) is an enlarged schematic cross-sectional view of the joining portion 3 for forming a cylinder along the line AA in FIG. 6, and shows only the rear seat portion 32.
- a single laminated body composed of three layers, an upstream layer s1 made of a spanpon nonwoven fabric, an intermediate layer m made of a melt-spun nonwoven fabric, and a downstream layer s2 made of a spanpon nonwoven fabric, is used. And the downstream layer s2 located on the outer surface side of the bag are joined together.
- the joining method is to bond with an adhesive such as a hot melt adhesive.
- various joining means such as heat sealing, sewing, ultrasonic welding, etc. can be used alone or in combination.
- gl indicates the bonding means such as the adhesive.
- FIG. 3 (B) is an enlarged schematic cross-sectional view taken along line A—A of FIG. 6, and FIG. 3 (C) is an enlarged schematic cross-sectional view taken along line BB of FIG.
- the structure of the closed part 35, 36 is shown.
- the end-closing portions 35, 36 use the above-described three-layer, one-sheet nonwoven fabric sheet 3a, and are located on the inner surface side of the bag of the front sheet portion 31 and the rear sheet portion 32.
- the upstream layer s 1 and s 1 are joined together without being folded.
- an adhesive and a heat seal are used together.
- a pressure-sensitive adhesive is used as the adhesive, and is applied to the bonding portion, and heat and pressure are applied by a heat-pressing die for heat sealing. It is desirable that the heat-pressing die has an embossed shape having irregularities, but it may be one that heat-presses in a flat shape. As a result, the nonwoven fabric sheet 3a is melted and heat-sealed, and the pressure-sensitive adhesive is pressed to exhibit an adhesive performance.
- a pressure-sensitive adhesive that does not exhibit adhesiveness when applied, but exhibits adhesiveness when pressure is applied in a dried state after application, can be used to clean the production line with the adhesive or to clean even if it becomes dirty. This is desirable because it is easy.
- the above-mentioned heat seal is performed on the end closures 35, 36, which are the periphery of the nonwoven fabric sheet 3a. It is desirable to change the heat seal density (emboss area ratio) between o and the portion i from the inside. Specifically, the part o on the outside is made sparse (for example, 3 to 10%), and the part i from the inside is made dense (for example, 15 to 30%). Conversely, the outer part o may be made denser, and the inner part i may be made sparse. By providing a difference in density, it is possible to prevent the filter from breaking even when a strong force such as wind pressure is applied to the heat-sealed part, and at the same time to realize a strong heat seal.
- the heat seal density embss area ratio
- the heat seal density is not limited to two steps, but may be gradually changed, and the innermost surface may be heat-sealable.
- the above-mentioned adhesive g2 may be provided so as to protrude further inside than the portion i from the inside. In this way, the adhesive-only portion, the high-density heat-sealing portion, and the low-density heat-sealing portion can be gradually strengthened toward the inner side of the bag.
- the layer forming the bonding surface that is, the upstream layer s1 be thinner (in other words, the one having a smaller basis weight) than the downstream layer s2.
- the adhesive easily reaches the intermediate layer m and the downstream layer s2.
- the upstream layer si but also the intermediate layer m and more preferably the downstream layer s2 can be strengthened by the adhesive, and delamination can be prevented.
- the present invention relates to a vacuum cleaner filter having no gore portion, which can be surely spread, and can provide a vacuum cleaner filter in which the filter is hardly damaged. .
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020057017866A KR101093035B1 (ko) | 2003-06-23 | 2004-04-26 | 전기 청소기용 집진필터 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2003178048A JP3558290B1 (ja) | 2003-06-23 | 2003-06-23 | 電気掃除機用集塵フィルタ |
JP2003-178048 | 2003-06-23 |
Publications (1)
Publication Number | Publication Date |
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WO2004112560A1 true WO2004112560A1 (ja) | 2004-12-29 |
Family
ID=32959737
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2004/005992 WO2004112560A1 (ja) | 2003-06-23 | 2004-04-26 | 電気掃除機用集塵フィルタ |
Country Status (4)
Country | Link |
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JP (1) | JP3558290B1 (ja) |
KR (1) | KR101093035B1 (ja) |
CN (1) | CN100415149C (ja) |
WO (1) | WO2004112560A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2452603A1 (de) * | 2010-11-10 | 2012-05-16 | Eurofilters Holding N.V. | Gefalteter Staubsaugerfilterbeutel |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4900675B2 (ja) * | 2006-07-05 | 2012-03-21 | 金星製紙株式会社 | エアフィルター用複合不織布 |
CN111214168B (zh) * | 2018-11-23 | 2021-11-09 | 宁波顺超轴承有限公司 | 智能化手持吸尘器 |
PL3791766T3 (pl) * | 2019-09-16 | 2022-08-01 | Aktiebolaget Electrolux | Uniwersalny zbiornik na kurz do odkurzacza |
Citations (6)
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JPS6033950U (ja) * | 1983-08-12 | 1985-03-08 | ニチパック株式会社 | 電気掃除機用集塵紙袋 |
JP2000000195A (ja) * | 1998-06-17 | 2000-01-07 | Kuraray Co Ltd | 電気掃除機用集塵袋 |
JP2000201870A (ja) * | 1998-11-10 | 2000-07-25 | Toray Ind Inc | 電気掃除機用集塵袋 |
JP2000350685A (ja) * | 1999-06-14 | 2000-12-19 | Hitachi Ltd | 電気掃除機用集塵フィルター |
JP2001120476A (ja) * | 1999-08-17 | 2001-05-08 | Toray Fine Chemicals Co Ltd | 電気掃除機用集塵袋およびそれを備えてなる電気掃除機 |
JP2002065530A (ja) * | 2000-09-04 | 2002-03-05 | Aimu Kk | 電気掃除機用集塵袋 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08134761A (ja) * | 1994-11-07 | 1996-05-28 | Mitsui Petrochem Ind Ltd | 不織布とその製造方法 |
FR2750314B1 (fr) * | 1996-06-26 | 1998-10-16 | Laplace Xavier | Filtre a poussieres pour aspirateur et aspirateur ainsi equipe |
-
2003
- 2003-06-23 JP JP2003178048A patent/JP3558290B1/ja not_active Expired - Fee Related
-
2004
- 2004-04-26 CN CNB2004800103623A patent/CN100415149C/zh not_active Expired - Fee Related
- 2004-04-26 WO PCT/JP2004/005992 patent/WO2004112560A1/ja not_active Application Discontinuation
- 2004-04-26 KR KR1020057017866A patent/KR101093035B1/ko active IP Right Grant
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6033950U (ja) * | 1983-08-12 | 1985-03-08 | ニチパック株式会社 | 電気掃除機用集塵紙袋 |
JP2000000195A (ja) * | 1998-06-17 | 2000-01-07 | Kuraray Co Ltd | 電気掃除機用集塵袋 |
JP2000201870A (ja) * | 1998-11-10 | 2000-07-25 | Toray Ind Inc | 電気掃除機用集塵袋 |
JP2000350685A (ja) * | 1999-06-14 | 2000-12-19 | Hitachi Ltd | 電気掃除機用集塵フィルター |
JP2001120476A (ja) * | 1999-08-17 | 2001-05-08 | Toray Fine Chemicals Co Ltd | 電気掃除機用集塵袋およびそれを備えてなる電気掃除機 |
JP2002065530A (ja) * | 2000-09-04 | 2002-03-05 | Aimu Kk | 電気掃除機用集塵袋 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2452603A1 (de) * | 2010-11-10 | 2012-05-16 | Eurofilters Holding N.V. | Gefalteter Staubsaugerfilterbeutel |
WO2012062458A1 (de) * | 2010-11-10 | 2012-05-18 | Eurofilters Holding N.V. | Gefalteter staubsaugerfilterbeutel |
Also Published As
Publication number | Publication date |
---|---|
KR20060022641A (ko) | 2006-03-10 |
CN1774199A (zh) | 2006-05-17 |
CN100415149C (zh) | 2008-09-03 |
JP2009178172A (ja) | 2009-08-13 |
KR101093035B1 (ko) | 2011-12-13 |
JP3558290B1 (ja) | 2004-08-25 |
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