CN1163188C - Filter bag for a vacuum cleaner - Google Patents
Filter bag for a vacuum cleaner Download PDFInfo
- Publication number
- CN1163188C CN1163188C CNB008022283A CN00802228A CN1163188C CN 1163188 C CN1163188 C CN 1163188C CN B008022283 A CNB008022283 A CN B008022283A CN 00802228 A CN00802228 A CN 00802228A CN 1163188 C CN1163188 C CN 1163188C
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- China
- Prior art keywords
- filter bag
- spring
- locking folding
- gate part
- dust
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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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
- A47L9/1445—Connecting plates, e.g. collars, end closures with closure means
- A47L9/1454—Self-sealing closures, e.g. valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to a filter bag (1) for a vacuum cleaner with a retaining plate (2) and a dust bag (3) linked with said retaining plate (2). Said retaining plate (2) is provided with a through opening for charging the dust bag (3) in the vacuum cleaner, said through opening being closable by means of a closing part (6). The aim of the invention is to improve such a filter bag with respect to the closure of the through opening. To this end, the closing part (6) functions according to the hasp and staple principle when it is displaced into the closed position.
Description
Technical field
The present invention at first relates to a kind of filter bag that is used for dust catcher, and it comprises a fixed head and a dust bag that is connected with fixed head, wherein, is shaped on a through hole in fixed head, and used for the dust bag control of dust in the dust catcher, this through hole can be closed by gate part.
Background technology
This class is used for that the filter bag of dust catcher is known various forms of implementation.Their dust catchers of packing in such a way, that is, dust is fixed in the filter bag by the effect of air-flow when making dust catcher work, and just air-flow is pressed in dust on the gas permeable wall of the dust bag that is connected with fixed head.If otherwise dust catcher is not worked, then filter bag must seal (work lid) rightly to guarantee not having dust to spill from filter bag.In addition, many filter bags also have a so-called hygiene cover, it prevent to take out and when getting rid of filter bag as refuse dust drop on the exit.The work lid of filter bag or hygiene cover be known a variety of forms of implementation.Be contained in the dust catcher of position, the crown for filter bag, can for example establish additional locking folding lid, be used for when dust catcher is stopped using, holding back dust.A kind of like this folding lid can design in the known manner, make it when dust catcher work, pushed open by air-flow and thereby release go to the hole of filter bag.Dust catcher close stopping time folding lid by its weight with bore closure, this also can by spring be used for supporting this pass closed procedure, to constitute a check valve, these for example can be recognized from German open file 1503726 and DE-OS 1628582.Hygiene cover is then different, and they often are made of guiding valve, revolving valve or the valve of different structure, and must be by user's manual manipulation when taking out dust-collecting container.In this respect can be referring to EP-B10758209.This manipulation or undertaken by directly lid being moved on on the filter bag, or take indirect approach to realize by operating parts on dust catcher of operation.Known already, some lids are made up of two or more stacked fluting elastomer thin film layers, and these layers are arranged as and close the hole of filter bag when extracting an adapter of inserting usually in the filter bag.
When dust catcher with via arrangement below filter bag the time, in other words filter bag places top, lid and the hygiene cover of working in known technical solution is made up of two mechanisms that separate, for example by a check valve as work to cover and by a guiding valve as hygiene cover.When dust catcher with via arrangement above filter bag or dust bag and when not having additional work lid, only reliably closing of filter bag could guarantee in some positions of dust catcher.In case dust catcher leaves this position, dust makes that can to release and can be blocked in the some other of upstream or downstream from filter bag be not to be designed for the member that holds a large amount of dusts.
Summary of the invention
Prior art in view of the above, the technical problem to be solved in the present invention are that the filter bag that designs a kind of the above-mentioned type makes it be improved aspect the locking of through hole.
This technical problem at first solves by a kind of filter bag that is used for dust catcher, it comprises a fixed head and a dust bag that is connected with this fixed head, wherein, in fixed head, be shaped on a through hole, be used to make the dust bag control of dust in the dust catcher, this through hole can be closed by a gate part, and according to the present invention: described gate part suffers a kind of effect (Ueberfallwirkung) of unexpected bending in transferring to the process of closing position.
Provide the closed system of a filter bag based on this design, its will work lid and hygiene cover is unified.For guaranteeing that dust releases when dust catcher turn-offs, gate part must have the good sealing effectiveness of work lid effect.This means that gate part must be pressed on the sealed seat surface with suitable power.Otherwise gate part causes the pressure loss usually by the unlatching of suction airstream, and this pressure loss causes reducing the pumping power of dust catcher.For this loss being reduced to minimum level and being obtained good sealing effectiveness simultaneously, this gate part has special spring performance.By the present invention, gate part is pressed on the sealing surface for reaching the enough big power of sealing effectiveness with one.Thereby, at first needing the power of an increasing in order to start opening process, this can bring the bigger pressure loss.Yet gate part is crossed a unlatching path of predesignating after this, makes almost conversion suddenly of spring performance.Consequently open required power and flow losses associated therewith obviously reduce.Obtained a kind of effect of unexpected bending based on gate part by spring performance of the present invention, its allows gate part not only to utilize as the work lid but also utilize as hygiene cover.The so gate part of design and dust catcher location independent ground work in this case, is especially closed the stopping time at dust catcher, because the big reset force of gate part has been realized reliable sealing function.Employing does not influence the pumping power of dust catcher to the design of gate part by the present invention.At the dust catcher duration of work, because the spring performance of gate part, so do not produce the pressure loss of being worth mentioning.In addition, when changing filter bag, need not handle hygiene cover by the operation that the user adds.On the one hand gate part open or close the duty that filter bag depends on dust catcher, filter bag is wholesomely sealed when taking out on the other hand.
According to a kind of decision design of the present invention, in the opening movement process of gate part, make to returning closing force (Rueckschliesskraft) to reduce.Consequently, for the only power of a raising of needs when the opening movement process begins of parts that opens the sluices, the thing followed is that the pressure loss can temporarily increase.When surpassing a predetermined opening travel, can preferably almost suddenly descend consumingly to returning closing force.Owing to this reason, flow losses significantly reduce in further opening movement process.This is favourable, because can constantly descend along with the gate part aperture increases pressure itself.By selecting can to change into this fact in an advantageous manner when returning the closing force characteristic curve, that is, pressure increases when filter bag is closed, and along with filter pocket mouths is opened greatly gradually, pressure reduces, and for this reason, reset force is complementary in size with the pressure condition of concrete existence.For example regulation is turning back at about 5 to 15% o'clock that open the path, descends to returning closing force.Therefore the gate part maximum only is utilized to itself is pressed on the sealing surface to returning closing force.Maximum in crossing the opening movement process descends to returning closing force, continuously until a minimum of a value that for example equals maximum, force 1/6 to 1/3 when going back to closed force.In addition, preferred a kind of characteristic curve in this characteristic curve, passes through a minimum of a value to returning closing force in the opening movement process.Therefore to returning closing force, open 1/2 place, path to returning closing force about gate part greatly through minimum of a value through rising again after the minimum of a value.To return closing force by the rising after the minimum of a value with reaching maximum to time closing force after decline opposite, its rate of climb significantly slows down, thus when reaching the gate part maximum open position, keep one about the same in 0.3 to 0.5 times of maximum, force to returning closing force.By a kind of decision design of the present invention, gate part and a spring (Knackfeder) mating reaction of buckling.In view of the above, gate part is equipped with an additional spring part, and it for example is made of forming metal thin plate or sheet metal.Therewith relevantly further preferably, this spring of buckling is designed to a spherical arched band spring.This band spring can rise earlier when making bending force initial thus perpendicular to the buckling on section bar plane.This rising is performed until the moment of depending on lamellar size, its E modulus and molding mode of a regulation, the bent axle flexing of going for a stroll after this, and consequently bending force obviously reduces.Can realize the spring performance of defined in this way the most easily.Stipulate further that in this respect gate part is a locking folding lid.Therefore, combine with this locking folding lid, the advantage of the lamellar of moulding (projection) is, bending force reduce the very little opening angle of at locking folding lid one time, for example preferably in the scope of 5 to 15 ° of opening angles the time, just can realize.Based on this design, in the high sealing force of expectation and the ratio between the alap opening force, by means of realizing by the spherical crooked just available simple mode of band spring of the present invention.When adopting the band spring of sheet metal or sheet metal system, also can produce following favourable effect, that is, cover certain pretightning force of giving lasting existence in certain in fact time at endless at the locking folding.According to the another kind of alternative design of the present invention, the described spring of buckling constitutes locking folding lid simultaneously.Therefore can be designed on material be unified to spring and locking folding lid, can select another kind of design as an alternative in this case, and wherein locking folding lid is designed to the elastomer member of spherical bending.Therefore the shell-like of elastomer member is arched is preferred, adopts this arched shape to obtain high rigidity in the marginal zone.Preferably become the slightly rigging position of pretension of elastomer member here.This spherical crooked structure is not only for constituting spring but also providing high self rigidity for the elastomer member that constitutes locking folding lid.In addition, the wall thickness of elastomer member in buckled zone is designed to, should be able to be by abrupt bend point (Ueberfallpunkt) reliable reset.Otherwise, can adopt relatively thinner wall thickness in order to reduce quality away from the zone of abrupt bend point (Drehpunkt).That adopts elastomer member thisly is similar to shelly outstanding shape, in the structure of the spherical crooked band spring of the employing that illustrated in the above, the such effect (Knackfroscheffekt) of the so-called clip that sputters of appearance when reaching certain pressure.When the locking folding covers the power that reaches enough big, the bending of locking folding lid, air drag reduces afterwards.After air exhauster was closed down, locking folding lid returned the home position automatically, so that close through hole hermetically.By a kind of preferred design code of the present invention, locking folding lid is placed in the inboard of fixed head.
In addition, the invention still further relates to a kind of filter bag that is contained in the dust catcher, it comprises a fixed head and a dust bag that is connected with fixed head, wherein, is shaped on through hole in fixed head, and for the dust arrester control of dust usefulness in the dust catcher, this through hole can be closed by gate part.This filter bag is the filter bag of above-mentioned embodiment preferably.But also it is contemplated that the filter bag of gate part with guiding valve or revolving valve form.For a kind of combined type work/hygiene cover that is used for filter bag here is provided, suggestion is controlled at filter bag the gate part there according to working condition.For example gate part remains on the enable possition when dust catcher is worked.Otherwise gate part closely is closed in the through hole in the fixed head zone when dust catcher is closed down.For this reason, according to the present invention, gate part can move to the enable possition from closing position by a control piece that is located at the dust catcher there.Therefore appropriate device is arranged in this dust catcher, and they allow to handle gate part automatically according to duty.This point for example can reach like this, that is, the gate part of filter bag is linked to each other with a controls machinery of dust catcher, for example links to each other with a power governor is mechanical.The manipulation of gate part can also realize by the servicing unit of electromechanics or pneumatic actuation.In addition, the energy that exists in dust catcher as electromagnetism, rotation, heat, moving-mass or pressure potential, all can be used to handle gate part.Preferred here air-operated control control piece.Utilize the pressure potential that in dust catcher, exists for this reason.Control piece is subjected to the manipulation of a gas tank in addition, the pressure potential that exists can be changed into thrust or moment of torsion by means of piston and gas tank thus, and can handle a guiding valve or a valve whereby.The stroke that maybe must handle according to the size of the size of operational pressure potential and piston area, the power or the moment that produce should be enough big, so that for example open locking folding lid, this locking folding lid is in order to support to open and closed gyration has that preface mentioned to returning the closing force characteristic curve.This locking folding covers thereby is held unlatching by the trying hard to keep of pressure potential the subject of knowledge and the object of knowledge acquisition that just existed originally when work, and air-flow becomes a mandarin and rolls over the pressure loss that lid causes so air-flow does not suffer.Work to overcome spring force for opening required power here, close down the back because pressure potential disappears at dust catcher, spring force guarantees enough sealing effectiveness.This principle also can be diverted to the locking guiding valve in a similar fashion.When gate part is designed to locking folding and cover, by favourable mode control piece the locking folding cover gyroaxis near act on locking and roll over and cover.In addition, locking folding covers facing and can establish a protuberantia that shortens the initial starting stroke of control piece on that surface of control piece.
Description of drawings
Further specify the present invention by accompanying drawing below, various embodiments shown in the accompanying drawing, in the accompanying drawing:
Fig. 1 is the perspective view by dust catcher filter bag of the present invention, wherein, relates to first kind of form of implementation that locking folding lid is supported by the spring of buckling (Knackfeder);
Fig. 2 is the profile along Fig. 1 center line II-II, and it comprises a locking folding lid in the closed position;
Fig. 3 is and Fig. 2 corresponding view, but relates to the middle enable possition that the locking folding covers;
Fig. 4 is another and Fig. 2 corresponding view, wherein is in the enable possition after the revolution of locking folding lid;
Fig. 5 is the partial top view of filter bag through hole area;
Fig. 6 is for pressing the amplification view of Fig. 5 center line VI-VI;
Fig. 7 is for covering the closing spring characteristic line of the spring of buckling that loads to the locking folding by first kind of form of implementation of Fig. 1 to 6;
Fig. 8 is and the corresponding local figure of Fig. 5, but relates to second kind of form of implementation that locking folding lid is designed to elastomer member;
Fig. 9 is for pressing the profile of Fig. 8 center line IX-IX, the closed position of its expression locking folding lid;
Figure 10 is and the corresponding profile of Fig. 9, but expression is by the enable possition of the locking folding lid of second kind of embodiment;
Figure 11 is the structural representation of the locking folding lid that is used to handle a filter bag by the control piece that is located at dust catcher there, and wherein locking folding lid is in the position of not handled;
Figure 12 is the partial top view of Figure 11;
Figure 13 is the partial view of Figure 11, relates to the enable possition of locking folding lid;
Figure 14 is and the corresponding diagrammatic depiction of Figure 11, but relates to another kind of form of implementation;
Figure 15 is the partial top view of Figure 14; And
Figure 16 is the partial view of Figure 14, but locking folding lid is opened.
The specific embodiment
The filter bag 1 of the dust catcher that is used for not representing at first is described referring to Fig. 1, and it comprises the dust bag 3 that a fixed head 2 is connected with fixed head 2 with, for example bonds.
In fixed head 2, be provided with a cross section and be used for making the through hole 4 of dust bag 3 at dust catcher work control of dust for circular.Upside, that is the axial sealer 5 that for example centers on through hole 4 with fixed head 2 bondings one is being set on the surface of dust bag 3.
Through hole 4 can be closed by means of a gate part 6, and in illustrated embodiment, this gate part is designed to the locking folding and covers 7.But also can imagine the form of gate part 6 for guiding valve or revolving valve.
Locking folding covers 7 and is arranged in fixed head 2 inboards, makes it from the following frontier district that closely abuts in through hole 4 annulars.Press the design of first kind of embodiment among Fig. 1 to 6, specifically be chosen as fixed head 2 is formed with hardboard/overlapped layers 8 to 10 made of paper by three, wherein there is through hole 4 in the superiors 8.9 open and cut out locking folding and cover 7 from the intermediate layer, and its diameter is chosen as and is slightly larger than through-hole diameter, and locking is rolled over and covered 7 hinge area 11 and be made of the wedge shape compacting of this layer material.
Downside at orlop 10 dust bag 3 of fixing, for example bond, orlop 10 have a hole 12 with the through hole 4 coaxial orientations of ground floor 8, and its diameter equals the diameter of locking folding lid at least.
For being covered 7, the locking folding is pressed on sealing station, establish a spring that it is loaded towards the closed position at its downside, this spring is designed to one in illustrated embodiment spherical arched band spring 13 in cross section, wherein, this arched direction that is is covered 7 directions of leaving from locking folding down.
This design based on band spring 13 has constituted the spring 14 of buckling, and here cuts out with the sheet metal or the sheet metal of spring 13 by moulding (projection).
The spring 14 of buckling is contained in locking folding and cover 7 downside, and rolls at locking and to cover 7 hinge areas, 11 beyonds and be bound between intermediate layer 9 and the lower floor 10.This spring of buckling has a length of freely stretching out, and this length extends to the locking folding at least and covers 7 center.
The buckle this structural design of spring 14 of employing makes the spring of buckling that a kind of favourable spring characteristic curve be arranged.In the curve map of Fig. 7, represented spring characteristic curve for example.As can be seen from the figure, bending force N is from the position of zero degree, that is stretches at first acutely rising of position (cover 7 at this position locking folding and be maintained at closing position) from shown in Figure 2, for example reaches 3 newton.Depend on the size of the spring 14 of buckling, its E modulus (elastic modelling quantity) and the mode of moulding, the spring 14 of buckling almost is suddenly to bend in the process of bending, and bending force N significantly descends afterwards.Therefore when being about 7 to 12 °, angle of bend W reaches maximum deflection power N
MaxBy curve map as can be seen, represent simultaneously locking folding cover 7 to the bending force N that returns closing force decline continuously at first in further BENDING PROCESS, until reaching minimum of a value N
Min, it reaches when about 45 to 50 ° angle of bend in illustrated embodiment.This minimum bend power N for example equals 0.5 to 0.8 newton.
By this minimum of a value N
MinAfter, bending force N slightly rises once more in the further BENDING PROCESS of spring 14 of buckling, and this rising is for example until reach bending force N when angle of bend W is about 90 °
EndBe about 1.5 to 1.8 newton.
So the advantage of the spring of buckling of moulding is, and is very little in angle, just realized reducing bending force N during preferably less than 10 °.Thus at sealing station, that is when closing position, cover the high active force that provides desired on 7 at the locking folding.Owing to descending, so for the further bending very little opening force of 14 needs of spring of buckling by bending force N behind the maximum point Nmax.The buckle this spring performance of spring 14 of utilization is covered 7 health and the work that are designed to a kind of combination of cover of locking folding.This combination requires be equipped with high sealing force by closed position shown in Figure 2.In contrast be cover 7 in order to open locking folding, that is, but should reduce to time closing force in order to make it to be turned to the enable possition.
Locking folding covers 7 upset realizes that from the power of external action on it this power is represented with arrow P in the drawings by one.This power P can realize by the appropriate device in dust catcher.Like this, locking folding cover 7 can with controls, for example power governor mechanical connection of dust catcher.The manipulation of locking folding lid can be carried out by means of the servicing unit of electromechanics or pneumatic actuation.Can utilize the power source that exists in dust catcher to handle locking folding lid in addition, such power source for example has electromagnetic force, rotation, heat, kinoplaszm amount or pressure potential.
In addition also can only control the locking folding with regard to the pressure-loaded of the suction airstream of existence and cover 7 by itself.
Expression locking folding covers 7 closing position among Fig. 2, as close existing situation of stopping time at dust catcher.The spring 14 high reset forces of buckling cover 7 with the locking folding and are squeezed on the sealed seat surface, thereby capture the particulate that is collected in the dust bag 3 reliably.Here, locking folding cover 7 and has constituted one and cover the assembly of forming by hygiene cover and work.Therefore particulate is for example overflowed from filter bag 1 by vibration in the time of neither can be in filter bag 1 is packed dust catcher into, also can be when changing filter bag 1 for example since on full dust bag 3 pressurization particulate is extruded.
Covering 7 high pressure that form previously at the locking folding when connecting dust catcher impels it to overcome turning round to returning closing force of the spring 14 of buckling.When angle of bend reached 5 to 10 °, the spring 14 of buckling was in the almost bending suddenly of its buckled zone 15, and in this case, at the place, place of this buckled zone 15, band spring 13 forms linearity basically and extends in cross section.
Disappear when closing down dust catcher and thing followed pressure, the spring 14 of buckling makes the locking folding cover the closing position that covering through hole 4 shown in Figure 2 is got back in 7 automatic again deflections at given to returning under the shutting.
Fig. 8 to Figure 10 illustrates and constitutes combined sanitary and another kind of alternative design of working and covering.The spring 14 of here buckling also is simultaneously that the locking folding covers 7, and for this reason, the locking folding covers 7 and is designed to spherical crooked elastomer member in cross section.
Elastomer locking folding cover locking folding among 7 embodiment that illustrated with the front cover 7 similar, it from the centre, here elastomeric layer open and cut off, and a shelly shape is arranged, it is downwards towards the interior curve of dust bag.
This elastomer locking folding covers 7 to have and above-mentioned band spring 13 similar spring performances, so in smaller angle district, have big to returning closing force near closing position, almost descend suddenly to returning closing force when crossing maximum, incident in this case is bending in buckled zone 15 scopes.
Form barometric gradient (pressure reduction) when the air exhauster of dust catcher is connected, it causes elastomer locking folding to cover 7 curving inwardly.Adopt this outstanding shape that is similar to shell of locking folding lid, produce " effect that the clip that sputters is such " of expectation from some barometric gradients.When cover at locking folding when reaching an enough big power on 7, when for example causing this enough big power by the pulse of suction airstream, locking is rolled over and is covered 7 and turn down, and air drag reduces after this.After air exhauster was closed down, the locking folding covered 7 and goes back to original position automatically again.
Figure 11 to 16 has represented two kinds of different designs, is used for handling automatically the filter bag lid, and the locking folding of preferably handling by embodiment noted earlier covers 7.
Utilization in dust catcher, exist for example at air blast 16 pressure potential on the pressure side, by means of a gas tank 17 and a piston 18, this pressure potential is converted into thrust or moment of torsion.
Converting to by Figure 11 to 13 under the situation of thrust, on piston 18, be provided with a push rod 19 that constitutes control piece 25, covering 7 extension plane earths perpendicular to the locking folding near the gyroaxis that it preferably constitutes from the top and act on locking and roll over and cover on 7 hinge area 11 in.The size of operational pressure potential and the size of piston area and handle required stroke and determine by such requirement, promptly, being applied to the power that locking folding covers on 7 by push rod 19 should be enough big, so that the locking folding is covered 7 to be opened, in this case further preferably, locking folding cover 7 unlatching and is supported by the spring performance covered by the folding of the locking among the top embodiment that has illustrated or the spring performance of a spring of attaching troops to a unit.
At the dust catcher duration of work, the locking folding covers 7 by holding unlatching from obtainable the trying hard to keep of pressure potential that forms simultaneously, so air-flow does not suffer the pressure loss (referring to Figure 13).Be used to open required power here and work to overcome locking folding and cover 7 elastic forces, this elastic force produces enough sealing effectiveness after dust catcher is closed down back that is pressure potential disappearance.
The structure here should be chosen as shown in figure 12, gas tank 17 is positioned to respect to being connected on suction on the fixed head 2 takes over 20 side direction and stagger, and take over 20 inside with the push rod 19 of gas tank 17 mating reactions by the suction of packing into of the transverse link 21 of a rigidity.Through part in 20 zones are taken in suction is sealed shut.
Figure 14 to 16 has represented another kind of alternative plan, and wherein pressure potential converts moment of torsion to.Here the piston 18 of gas tank 17 makes push rod 22 motion with fixed head 2 parallel orientations, the free end of push rod hinged one can be around the opening tool 24 of a control piece 25 of rotating shaft 23 rotating formations.All-or-nothing piece 24 extends above the locking folding covers 7 back to that side of push rod 22 abreast at gyroaxis 23.
When dust catcher is connected, push rod 22 move horizontally the rotation that converts all-or-nothing piece 24 to, this all-or-nothing piece 24 is pressed in the locking folding with its free end and cover on 7 and make it to overcome it and move to the enable possition to time closing force.
This pneumatic loading of gate part 6 also can be applied in the guiding valve, and the pressure potential of Cun Zaiing converts thrust to by means of piston and gas tank in this case.Opening movement also is to carry out under the situation that overcomes side valve type gate part spring force, and this spring force makes gate part automatically move on to closing position again in the dust catcher pass stopping time.
All disclosed features are main contents of the present invention.In the disclosed content of the application, also introduced subordinate/the whole disclosed contents of appended priority text (at the copy of first to file), for this purpose, in the application's claim, also absorbed the feature of these data.
Claims (9)
1. filter bag (1) that is used for dust catcher, it comprises a fixed head (2) and a dust bag (3) that is connected with this fixed head (2), wherein, in fixed head (2), be shaped on a through hole, be used to make dust bag (3) control of dust in the dust catcher, this through hole (4) can be closed by a gate part (6), it is characterized in that: described gate part (6) suffers a kind of effect of unexpected bending in transferring to the process of closing position.
2. according to the described filter bag of claim 1, it is characterized in that: in gate part (6) opening movement process, act on the gate part (6) to returning the situation that closing force (N) can occur reducing.
3. according to the described filter bag of claim 2, it is characterized in that: described to return closing force (N) in the opening movement process through a minimum of a value (Nmin).
4. according to the described filter bag of above-mentioned each claim, it is characterized in that: described gate part (6) and a spring (14) mating reaction of buckling.
5. according to the described filter bag of claim 4, it is characterized in that: the described spring of buckling (14) is designed to a spherical arched band spring (13).
6. according to the described filter bag of claim 4, it is characterized in that: described gate part (6) is a locking folding lid (7).
7. according to the described filter bag of claim 4, it is characterized in that: the described spring of buckling (14) constitutes described locking folding lid (7).
8. according to the described filter bag of claim 7, it is characterized in that: described locking folding lid (7) is designed to spherical crooked elastomer member.
9. according to the described filter bag of claim 6, it is characterized in that: described locking folding lid (7) is contained in fixed head (2) inboard.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19948909.2 | 1999-10-11 | ||
| DE19948909A DE19948909A1 (en) | 1999-10-11 | 1999-10-11 | Filter bag for a vacuum cleaner |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100396999A Division CN100398049C (en) | 1999-10-11 | 2000-09-01 | Sock of duster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1327374A CN1327374A (en) | 2001-12-19 |
| CN1163188C true CN1163188C (en) | 2004-08-25 |
Family
ID=7925220
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100396999A Expired - Lifetime CN100398049C (en) | 1999-10-11 | 2000-09-01 | Sock of duster |
| CNB008022283A Expired - Lifetime CN1163188C (en) | 1999-10-11 | 2000-09-01 | Filter bag for a vacuum cleaner |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100396999A Expired - Lifetime CN100398049C (en) | 1999-10-11 | 2000-09-01 | Sock of duster |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP1137360B2 (en) |
| JP (1) | JP4526751B2 (en) |
| CN (2) | CN100398049C (en) |
| AT (1) | ATE414457T1 (en) |
| AU (1) | AU7649200A (en) |
| DE (2) | DE19948909A1 (en) |
| ES (1) | ES2313905T5 (en) |
| HK (1) | HK1042220B (en) |
| WO (1) | WO2001026526A1 (en) |
Families Citing this family (43)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10209718A1 (en) * | 2002-03-06 | 2003-09-25 | Edison Fatehpour | Spring element for a flap of a filter bag |
| DE20308543U1 (en) | 2003-05-31 | 2003-08-28 | Aichner Filter GmbH, 92345 Dietfurt | Holding panel for dust filter bag of vacuum cleaner, includes resilient sheet elastomer partly covering inlet opening |
| DE10357635B4 (en) * | 2003-12-10 | 2013-10-31 | Vorwerk & Co. Interholding Gmbh | Floor cleaning device |
| EP1787561B1 (en) | 2005-11-22 | 2013-04-17 | Eurofilters Holding N.V. | Vacuum cleaner dust bag with closure means |
| RU2409304C2 (en) | 2005-11-22 | 2011-01-20 | Еврофильтерс Холдинг Н.В. | Bag filter for vacuum cleaner |
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| US2070674A (en) † | 1935-11-05 | 1937-02-16 | Utility Innovations Inc | Dust bag |
| GB1046199A (en) * | 1964-09-08 | 1966-10-19 | Electrolux Ltd | Improvements relating to vacuum cleaners |
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| JPS5931360U (en) * | 1982-08-25 | 1984-02-27 | 株式会社日立製作所 | Disposable filter for vacuum cleaner |
| DE9101981U1 (en) † | 1991-02-20 | 1991-05-08 | Omega Elektrogeräte GmbH, O-7400 Altenburg | Dust filter bag |
| DE4237035A1 (en) * | 1992-11-03 | 1994-05-05 | Vorwerk Co Interholding | Dust filter bag for a vacuum cleaner |
| DE4415350A1 (en) * | 1994-05-02 | 1995-11-16 | Vorwerk Co Interholding | Dust filter bag for a vacuum cleaner |
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| JP3417179B2 (en) * | 1995-12-28 | 2003-06-16 | 松下電器産業株式会社 | dishwasher |
| DE29615163U1 (en) * | 1996-08-31 | 1996-11-21 | Hafner, Ingo, Dipl.-Ing., 56566 Neuwied | Device for collecting dust, dirt and the like |
-
1999
- 1999-10-11 DE DE19948909A patent/DE19948909A1/en not_active Ceased
-
2000
- 2000-09-01 WO PCT/EP2000/008541 patent/WO2001026526A1/en active Application Filing
- 2000-09-01 AT AT00965909T patent/ATE414457T1/en active
- 2000-09-01 EP EP00965909.5A patent/EP1137360B2/en not_active Expired - Lifetime
- 2000-09-01 CN CNB2004100396999A patent/CN100398049C/en not_active Expired - Lifetime
- 2000-09-01 AU AU76492/00A patent/AU7649200A/en not_active Abandoned
- 2000-09-01 CN CNB008022283A patent/CN1163188C/en not_active Expired - Lifetime
- 2000-09-01 DE DE50015459T patent/DE50015459D1/en not_active Expired - Lifetime
- 2000-09-01 JP JP2001529323A patent/JP4526751B2/en not_active Expired - Lifetime
- 2000-09-01 ES ES00965909.5T patent/ES2313905T5/en not_active Expired - Lifetime
-
2002
- 2002-05-22 HK HK02103841.3A patent/HK1042220B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003511135A (en) | 2003-03-25 |
| CN1539368A (en) | 2004-10-27 |
| HK1042220B (en) | 2005-03-11 |
| EP1137360B2 (en) | 2017-12-13 |
| ES2313905T3 (en) | 2009-03-16 |
| WO2001026526A1 (en) | 2001-04-19 |
| ATE414457T1 (en) | 2008-12-15 |
| DE50015459D1 (en) | 2009-01-02 |
| EP1137360B1 (en) | 2008-11-19 |
| CN1327374A (en) | 2001-12-19 |
| EP1137360A1 (en) | 2001-10-04 |
| ES2313905T5 (en) | 2018-02-07 |
| DE19948909A1 (en) | 2001-04-12 |
| CN100398049C (en) | 2008-07-02 |
| JP4526751B2 (en) | 2010-08-18 |
| HK1042220A1 (en) | 2002-08-09 |
| AU7649200A (en) | 2001-04-23 |
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