EP1674015B1 - Electric cleaner - Google Patents
Electric cleaner Download PDFInfo
- Publication number
- EP1674015B1 EP1674015B1 EP04792391A EP04792391A EP1674015B1 EP 1674015 B1 EP1674015 B1 EP 1674015B1 EP 04792391 A EP04792391 A EP 04792391A EP 04792391 A EP04792391 A EP 04792391A EP 1674015 B1 EP1674015 B1 EP 1674015B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air passage
- dust
- vacuum cleaner
- main body
- filter
- Prior art date
- 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 - Fee Related
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Classifications
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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
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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
- A47L9/102—Dust separators
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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
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
- A47L5/28—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle
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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
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
- A47L5/28—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle
- A47L5/30—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle with driven dust-loosening tools, e.g. rotating brushes
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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
- A47L9/12—Dry filters
- A47L9/122—Dry filters flat
Definitions
- the present invention relates to an electric vacuum cleaner comprising a separating section for separating dust that is sucked therein with air by driving an electric blower.
- US 6,266,845 B1 relates to a vacuum cleaner having a dust cup comprising a first dust collecting chamber and a second dust collecting member.
- a vacuum cleaner main body with an electric blower housed therein.
- a separating section communicating with a main body suction port that is formed in an opening manner in the vacuum cleaner main body.
- the separating section is adapted to cyclone-separate dust that is sucked therein with air through the main body suction port by driving the electric blower in accordance with the specific gravity or size thereof.
- the separating section On the downstream side of the separating section, there is provided an opening portion communicating with an air passage that communicates with the suction side of the electric blower, the opening portion being provided with a filter section. Then, the separating section separates dust that is sucked therein with air via the main body suction port by driving the electric blower in accordance with the specific gravity or size thereof, and the separated dust is partially trapped in the filter section when passing through the opening portion with the air so that the air with the dust being partially removed flows into the electric blower (refer to Patent Document 1, for example).
- the present invention has been made in consideration of the above-described problem, and an object thereof is to provide an electric vacuum cleaner in which it is possible to ensure an increased area of a first filter while saving space.
- the present invention includes: a separating section for separating dust that is sucked therein with air through an intake port by driving an electric blower into coarse dust and fine dust; a coarse dust air passage , a fine dust air passage provided parallel with the coarse dust air passage , a partition wall positioned between the coarse dust air passage and the fine dust air passage; a first filter provided in an opening portion that is opened in the partition wall along the coarse dust air passage; and a second filter provided on the downstream side of the fine dust air passage; characterized in that the separating section is constructed and arranged such that the coarse dust flows into the coarse dust air passage with part of the air and the fine dust flows into the fine dust air passage with the rest of the air.
- the partition wall positioned between the coarse dust air passage into which coarse dust separated in the separating section flows with part of the air and the fine dust air passage into which fine dust flows with the rest of the air, there is opened the opening portion along the coarse dust air passage, and the opening portion is provided with the first filter, whereby it is possible to ensure an increased area of the first filter while saving space.
- the separating section comprises: the coarse dust air passage into which coarse dust that has passed through the separating main body part that is formed into an approximately cylindrical shape and communicates with the intake port flows with part of the air and the fine dust air passage into which fine dust flows with the rest of the air, whereby it is possible to reduce the size of the separating section.
- Numeral 1 denotes an electric vacuum cleaner.
- the electric vacuum cleaner 1 is a so-called upright-type, that is, stick-type vacuum cleaner.
- the electric vacuum cleaner 1 includes a vacuum cleaner main body 2 having a vertically longitudinal shape, and an electric blower 3 is housed in a lower part of the vacuum cleaner main body 2, while a dust collecting section 4 is provided above the electric blower 3.
- a hose body 5 is connected to an upper part on the rear side of the vacuum cleaner main body 2 to communicate with the upstream side, that is, suction side of the dust collecting section 4, and the leading end portion on the suction side of the hose body 5 is connected with a cylindrical connecting duct portion 6, a handheld duct portion 7, and an extension duct 8 in a communicating manner in this order. Furthermore, the leading end portion on the suction side of the extension duct 8 is inserted in the upper end portion, one end portion of a cylindrical attachment 9 that is provided in a lower part on the rear side of the vacuum cleaner main body 2. Then, in the lower end portion, the other end portion of the attachment 9, there is inserted and connected the base end portion on the downstream side, that is, exhaust side of a floor brush 11 as an intake port body.
- an arc-shaped handle part 12 to make it possible to carry the electric vacuum cleaner 1.
- an extension duct fixing part 13 for fixing the extension duct 8 thereto detachably.
- a rear part of the vacuum cleaner main body 2 there are bored a plurality of long outlet holes not shown in the figures to communicate with the exhaust side of the electric blower 3. Then, in a position of the vacuum cleaner main body 2 facing the rear part of the dust collecting section 4, there is formed an approximately circular intake port 14 in an opening manner.
- a plurality of Exhaust ports 15 in an opening manner below the intake port 14.
- the intake port 14 communicates with the floor brush 11 so that air containing dust that is sucked through the floor brush 11 by driving the electric blower 3 passes therethrough. Also, on the exhaust side of the intake port 14, there is provided a separating section 16.
- the separating section 16 is adapted to separate dust that is sucked therein through the floor brush 11 by driving the electric blower 3 to pass through the intake port 14 into coarse dust having a relatively large specific gravity or size and fine dust having a specific gravity or size smaller than that of the coarse dust, the section comprising an approximately straight cylindrical separating main body part 17 that is provided concentrically with the intake port 14.
- the separating main body part 17 protrudes into the dust collecting section 4 with the diameter thereof being reduced from the intake port 14 side toward the front side of the vacuum cleaner main body 2, that is, from the intake port 14 side toward the exhaust ports 15 side.
- the auxiliary openings 18 are separated from each other in the circumferential direction of the separating main body part 17 at approximately the same spacing. Also, mesh filters 18a are installed in the respective auxiliary openings 18 in such a manner as to cover the respective auxiliary openings 18.
- the exhaust ports 15 are provided along the vertical direction of the vacuum cleaner main body 2 to have a long hole shape, and are separated from each other in the horizontal direction, that is, the width direction of the vacuum cleaner main body 2 at approximately the same spacing. Also, on the exhaust side of the exhaust ports 15, there is provided a communication air passage 19 that communicates with the suction side of the electric blower 3.
- the intake port 14 and the exhaust ports 15 are provided in approximately the same direction toward the separating section 16, as shown in Fig. 2 , to face the rear part of the dust collecting section 4.
- the electric blower 3 is housed in the vacuum cleaner main body 2 with the suction side thereof facing upward. Also, the suction side of the electric blower 3 is connected airtightly to the dust collecting section 4 via the exhaust ports 15. Further, the electric blower 3 is driven with power to be supplied from an external power supply not shown in the figures via a power cord not shown in the figures that is wound unwindably and windably around a code reel 22 that is provided rotatably in the rear part of the vacuum cleaner main body 2.
- the dust collecting section 4 is provided detachably to the vacuum cleaner main body 2. As shown in Fig. 1 , the dust collecting section 4 also includes: a hollow housing main body part 25; a partition wall 26 provided in the housing main body part 25; and an openable cover part 27 capable of opening and closing the housing main body part 25.
- the housing main body part 25 communicates with the separating section 16, and is separated by the partition wall 26 into a coarse dust air passage (main communication passage) 31 on the front side and a fine dust air passage (auxiliary air passage) 32 on the rear side.
- the coarse dust air passage 31 communicates with the downstream side of the separating main body part 17 of the separating section 16 via a vent hole 33 that is formed in the partition wall 26 in an opening manner concentrically with the separating main body part 17, and is bent downward with respect to the axial direction of the separating main body part 17 as well as being formed into a longitudinal shape along the vertical direction, that is, the longitudinal direction of the vacuum cleaner main body 2. Then, the coarse dust air passage 31 is adapted to flow coarse dust thereinto with part of the air that is sucked through the intake port 14, having a dust collecting function for mainly collecting the coarse dust in a lower part thereof. Further, the downstream side of the coarse dust air passage 31 communicates with the fine dust air passage 32 via a communication port 35 as an opening portion with a lower mesh filter 34 as a first filter provided therein that is opened below the vent hole 33 in the partition wall 26.
- the lower mesh filter 34 is adapted to prevent coarse dust collected in the coarse dust air passage 31 from leaking through the communication port 35 for letting air that is flowed into the coarse dust air passage 31 to carry the coarse dust out of the coarse dust air passage 31.
- the communication port 35 is formed into a longitudinal shape along the coarse dust air passage 31.
- the fine dust air passage 32 communicates with the downstream side of the auxiliary openings 18 of the separating section 16, being formed into a vertically longitudinal shape in parallel with the coarse dust air passage 31 below the separating main body part 17. Then, the fine dust air passage 32 is adapted to flow minute dust that has passed through the mesh filters 18a in the auxiliary openings 18 thereinto with air that does not pass through the coarse dust air passage 31, that is, the rest of the air that is sucked through the intake port 14, housing a filter body 36 for trapping the minute dust. Further, in a lower part on the rear side of the fine dust air passage 32, there is formed an exhaust communication port 37 communicating with the exhaust ports 15 in an opening manner.
- the filter body 36 has a pleat filter 38 as a second filter and a frame body 39 for holding the periphery of the pleat filter 38 to be detachable within the fine dust air passage 32.
- the pleat filter 38 is formed into a wave shape in an anteroposteriorly-curved manner, and a crease is formed in the vertical direction, that is, the direction along the fine dust air passage 32. Also, the pleat filter 38 is disposed in a position corresponding to that of the lower mesh filter 34 in the communication port 35 to face the rear side, that is, the downstream side of the lower mesh filter 34 so as to be perpendicular to the air flow from the coarse dust air passage 31. Further, the pleat filter 38 is formed larger than the lower mesh filter 34, when viewed from the front, to have a size corresponding to the entire communication port 35.
- the frame body 39 is formed into a square frame shape to be installed in the fine dust air passage 32 in an inclined manner so that the upper side of the pleat filter 38 is positioned forward relative to the lower side thereof.
- the frame body 39 is provided with an inclined plate part 41 that is inclined downward from the rear side toward the front side thereof below the pleat filter 38.
- the front end portion, that is, the leading end portion of the inclined plate part 41 is positioned in a lower part of the fine dust air passage 32 to continue to a minute dust collecting section 42 that is provided in the openable cover part 27.
- the minute dust collecting section 42 which is adapted to collect minute dust that has been trapped in the pleat filter 38 and fallen down the inclined plate part 41, can be opened and closed by opening and closing the openable cover part 27.
- dusting means 43 for removing, that is, shaking off minute dust that is trapped in the pleat filter 38.
- the dusting means 43 is adapted to shake off minute dust that is trapped in the pleat filter 38 to be made to fall down into the minute dust collecting section 42 by, for example, driving a motor not shown in the figures in a rotating manner to vibrate the pleat filter 38.
- the exhaust communication port 37 faces and communicates with the exhaust ports 15.
- the exhaust communication port 37 is adapted to let sucked air out through the rear part of the fine dust air passage 32 toward the exhaust ports 15.
- the filter body 36 communicates with the suction side of the electric blower 3 via the exhaust communication port 37 and the exhaust ports 15.
- a lower filter not shown in the figures is further installed in the exhaust communication port 37 in such a manner as to cover the entire exhaust communication port 37.
- the partition wall 26 is positioned between the coarse dust air passage 31 and the fine dust air passage 32, having a surface direction along the horizontal direction intersecting with the anteroposterior direction of the electric vacuum cleaner 1, and is formed into a vertically longitudinal shape as well as continues from the upper end portion in the housing main body part 25 through the openable cover part 27.
- the communication port 35 provided in the partition wall 26 is separated downward from the vent hole 33 and is opened to be a longitudinal shape from a position above the vertically central region of the partition wall 26 through the vicinity of the lower end portion of the partition wall 26. Then, the lower mesh filter 34 provided in the communication port 35 is disposed in a grid pattern across the entire communication port 35.
- the openable cover part 27 is provided vertically rotatably in a rear part of the lower end portion of the housing main body part 25. Further, the openable cover part 27 can be opened and closed with respect to the housing main body part 25 by operating a cover part clamp not shown in the figures.
- the hose body 5 has an elongated accordion-type cylindrical shape made of, for example, flexible synthetic resin to be made stretchable in the axial direction thereof.
- the connecting duct portion 6 is formed into a cylindrical shape made of, for example, synthetic resin harder than the hose body 5, and is provided concentrically with the hose body 5 to communicate with the leading end portion of the hose body 5.
- the connecting duct portion 6 is also connected detachably to the base end portion on the exhaust side of the handheld duct portion 7 in a communicating manner.
- the handheld duct portion 7 includes: an approximately cylindrical main body part 46 that communicates with the leading end portion on the suction side of the connecting duct portion 6 and the base end portion on the exhaust side of the extension duct 8; and a holding part 47 protruding radially from the main body part 46.
- the holding part 47 protrudes from the outside surface on the leading end side of the main body part 46 to be bent toward the base end side of the main body part 46.
- the holding part 47 is also provided with a plurality of setup buttons not shown in the figures for driving the electric blower 3 in a predetermined driving mode.
- the extension duct 8 is adapted to function as an arm when an operator operates the electric vacuum cleaner 1, being formed into an elongated cylindrical shape, that is, a longitudinal shape made of metal such as aluminum.
- the extension duct 8 communicates with the suction side of the electric blower 3 via the handheld duct portion 7, the connecting duct portion 6, the hose body 5, and the dust collecting section 4.
- a packing 79 is installed in the attachment 9 so that the leading end portion of the extension duct 8 and the base end portion of the floor brush 11 are inserted detachably into a communication duct 82, respectively, from above and below to be connected airtightly.
- the floor brush 11 is placed on a floor surface as a to-be-cleaned surface to support the electric vacuum cleaner 1, communicating with the leading end portion on the suction side of the extension duct 8 through the attachment 9 with the extension duct 8 being inserted in the upper end portion of the attachment 9.
- the floor brush 11 also includes a hollow horizontally-long case body 81 with a suction port 81a being formed in a lower part thereof facing the floor surface in an opening manner.
- a suction port 81a being formed in a lower part thereof facing the floor surface in an opening manner.
- the cylindrical communication duct 82 On a rear part of the case body 81, there is rotatably provided the cylindrical communication duct 82 in a protruding manner to communicate with the suction port 81a, and the communication duct 82 is inserted into the lower end portion of the attachment 9 to be connected airtightly.
- the communication duct 82 is arranged detachably against the attachment 9 using a brush clamp 83 provided in a rear part of the attachment 9. Also, the communication duct 82 is in contact airtightly with the packing 79.
- brush following wheels 84 rotatably.
- the electric vacuum cleaner 1 can travel on the floor surface forward and backward using the brush following wheels 84.
- the power cord is plugged into a socket not shown in the figures with the extension duct 8 being attached to the vacuum cleaner main body 2, and the holding part 47 of the handheld duct portion 7 is held to operate a predetermined setup button to drive the electric blower 3.
- the operator holds the holding part 47 to allow the electric vacuum cleaner 1 to travel forward and backward and suck dust through the suction port 81a of the floor brush 11 to clean the floor surface.
- the extension duct 8 is detached from the vacuum cleaner main body 2 to suck dust through the leading end portion of the extension duct 8.
- the connecting duct portion 6 is detached from the handheld duct portion 7 to suck dust through the leading end portion of the connecting duct portion 6.
- Air sucked with dust passes through the intake port 14 and the vent hole 33 through the hose body 5 as sucked air to subsequently flow into the separating section 16.
- the sucked air is then restricted through the separating main body part 17 to increase the flow rate thereof, and coarse dust among the dust contained in the sucked air having a relatively large specific gravity or size passes through the separating main body part 17 straightforward with sucked air W1 to flow into the coarse dust air passage 31, while fine dust having a relatively small specific gravity or size is separated in the circumferential direction of the separating main body part 17 to flow into the auxiliary openings 18 to be trapped partially in the mesh filters 18a. Minute dust that has passed through the mesh filters 18a then flows into the fine dust air passage 32 with sucked air W2.
- the coarse dust flowing into the coarse dust air passage 31 is trapped when the sucked air W1 flowing into the coarse dust air passage 31 passes through the lower mesh filter 34 to be collected in the coarse dust air passage 31. Then, the sucked air W1 with the coarse dust being removed passes through the pleat filter 38 to subsequently flow from the exhaust ports 15 into the communication air passage 19 through the exhaust communication port 37 and then flow toward the suction side of the electric blower 3.
- the minute dust flowing into the fine dust air passage 32 is to be trapped in the pleat filter 38 when the sucked air W2 flows through the pleat filter 38 vertically. Then, the sucked air W2 with the minute dust being removed flows from the exhaust ports 15 into the communication air passage 19 through the exhaust communication port 37 to flow toward the suction side of the electric blower 3.
- the sucked air flowing into the electric blower 3 then passes through the electric blower 3 to be exhausted from the vacuum cleaner main body 2 through an outlet hole as outlet air.
- the dusting means 43 is to be driven by the motor not shown in the figures so that the minute dust trapped in the pleat filter 38 is shaken off from the pleat filter 38 and then collected in the minute dust collecting section 42 through the inclined plate part 41.
- the dust collected in the coarse dust air passage 31 and the minute dust collecting section 42 is to be put into a trash, etc., not shown in the figures provided outside the dust collecting section 4 by detaching the dust collecting section 4 from the vacuum cleaner main body 2 with the electric blower 3 being stopped and operating the cover part clamp to open the openable cover part 27.
- the dust collecting section 4 is subsequently attached to the vacuum cleaner main body 2 again to be used.
- the communication port 35 which is adapted to let the sucked air W1 flowing into the coarse dust air passage 31 out of the coarse dust air passage 31, along the coarse dust air passage 31 in an opening manner, and that the communication port 35 is provided with the lower mesh filter 34 for preventing dust collected in the coarse dust air passage 31 from leaking from the coarse dust air passage 31.
- the separating section 16 since the separating section 16 includes the approximately straight cylindrical separating main body part 17 and the auxiliary openings 18 bored on the periphery of the separating main body part 17 to separate dust contained in sucked air straightforward, it is possible to further reduce the size of the separating section 16 and the electric vacuum cleaner 1 relative to the case where a cyclone separating section for swirling sucked air to centrifuge dust is used, for example.
- the coarse dust air passage 31 has the dust collecting function for collecting dust that passes therethrough, it is possible to reduce the size of the vacuum cleaner main body 2 relative to the case where a dust collecting section is provided separately from the coarse dust air passage 31.
- the air passages 31 and 32 run vertically parallel with each other and the coarse dust air passage 31 has the dust collecting function in a lower part thereof, dust flowing into the air passages 31 and 32 falls down by its own weight to accumulate easily in the bottom of the housing main body part 25, resulting in an easy separation between sucked air and dust.
- the pleat filter 38 is provided along the fine dust air passage 32 in a position corresponding to that of the lower mesh filter 34, the resistance in the air passages is increased due to the filters 34 and 38, resulting in an improvement in dust collecting performance and a lower possibility of clogging the filters 34 and 38.
- the pleat filter 38 has a pleat shape with a crease formed therein along the fine dust air passage 32, it is possible to ensure an increased surface area of the pleat filter 38 through which sucked air W2 passes, resulting in an improvement in dust collecting efficiency.
- the intake port 14 and the exhaust ports 15 are positioned facing the rear part of the dust collecting section 4 on the same side of the housing main body part 25, it is only required to provide a seal packing, etc., in a rear part of the dust collecting section 4 when attaching the dust collecting section 4 to the vacuum cleaner main body 2, resulting in an improvement in sealing performance relative to the case where seal packing, etc., is provided in both front and rear parts of the dust collecting section 4, for example.
- applying the foregoing dust collecting section 4 to an upright-type electric vacuum cleaner allows the configuration of the vacuum cleaner main body 2 having a vertically longitudinal shape to be utilized effectively to prevent the size of the vacuum cleaner main body 2 from increasing.
- the separating section 16 is not restricted to the above-described configuration as long as it is capable of separating dust in accordance with the specific gravity or size thereof.
- the details of the electric vacuum cleaner 1 are not restricted to the above-described configuration.
- the electric vacuum cleaner 1 can be applied correspondingly to not only a stick-type one but also a so-called canister-type one, etc.
- the present invention is preferably utilized for, for example, an upright-type electric vacuum cleaner.
Abstract
Description
- The present invention relates to an electric vacuum cleaner comprising a separating section for separating dust that is sucked therein with air by driving an electric blower.
-
US 6,266,845 B1 relates to a vacuum cleaner having a dust cup comprising a first dust collecting chamber and a second dust collecting member. Conventionally, such kinds of electric vacuum cleaners are equipped with a vacuum cleaner main body with an electric blower housed therein. In the vacuum cleaner main body, there is disposed a separating section communicating with a main body suction port that is formed in an opening manner in the vacuum cleaner main body. The separating section is adapted to cyclone-separate dust that is sucked therein with air through the main body suction port by driving the electric blower in accordance with the specific gravity or size thereof. Also, on the downstream side of the separating section, there is provided an opening portion communicating with an air passage that communicates with the suction side of the electric blower, the opening portion being provided with a filter section. Then, the separating section separates dust that is sucked therein with air via the main body suction port by driving the electric blower in accordance with the specific gravity or size thereof, and the separated dust is partially trapped in the filter section when passing through the opening portion with the air so that the air with the dust being partially removed flows into the electric blower (refer toPatent Document 1, for example). - Patent Document 1: Japanese Examined Utility Model Publication No.
47-9805 page 1 to 2 andFig.1 ) - In the above-described electric vacuum cleaner, in which coarse dust and fine dust are collected separately in such a way as inertial separation, since it is often the case that the filter section, etc., is clogged with the fine dust, it is necessary to ensure an increased filtering area.
- It is however necessary to increase the cross-sectional area of the separating section or the air passage to increase the filtering area, resulting in a problem in that it is not easy to ensure an increased filtering area without increasing the size of the vacuum cleaner main body.
- The present invention has been made in consideration of the above-described problem, and an object thereof is to provide an electric vacuum cleaner in which it is possible to ensure an increased area of a first filter while saving space.
- The present invention includes: a separating section for separating dust that is sucked therein with air through an intake port by driving an electric blower into coarse dust and fine dust; a coarse dust air passage , a fine dust air passage provided parallel with the coarse dust air passage , a partition wall positioned between the coarse dust air passage and the fine dust air passage; a first filter provided in an opening portion that is opened in the partition wall along the coarse dust air passage; and a second filter provided on the downstream side of the fine dust air passage;
characterized in that the separating section is constructed and arranged such that the coarse dust flows into the coarse dust air passage with part of the air and the fine dust flows into the fine dust air passage with the rest of the air. - In accordance with the present invention, in the partition wall positioned between the coarse dust air passage into which coarse dust separated in the separating section flows with part of the air and the fine dust air passage into which fine dust flows with the rest of the air, there is opened the opening portion along the coarse dust air passage, and the opening portion is provided with the first filter, whereby it is possible to ensure an increased area of the first filter while saving space.
- Also, in accordance with one aspect of the present invention, the separating section comprises: the coarse dust air passage into which coarse dust that has passed through the separating main body part that is formed into an approximately cylindrical shape and communicates with the intake port flows with part of the air and the fine dust air passage into which fine dust flows with the rest of the air, whereby it is possible to reduce the size of the separating section.
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- [
Fig.1 ] A vertical cross-sectional view showing an electric vacuum cleaner according to an embodiment of the present invention; - [
Fig.2 ] A front elevational view showing a part of the electric vacuum cleaner; and - [
Fig.3 ] A perspective view showing the electric vacuum cleaner. -
- 1: Electric vacuum cleaner
- 2: Vacuum cleaner main body
- 3: Electric blower
- 14: Intake port
- 15: Exhaust port
- 16: Separating section
- 17: Separating main body part
- 18: Auxiliary opening
- 26: Partition wall
- 31: Coarse dust air passage (main communication passage)
- 32: Fine dust air passage (auxiliary air passage)
- 34: Lower mesh filter as first filter
- 35: Communication port as opening portion
- 38: Pleat filter as second filter
- The configuration of an electric vacuum cleaner according to an embodiment of the present invention will hereinafter be described with reference to
Figs.1 to 3 . - In
Figs.1 to 3 ,Numeral 1 denotes an electric vacuum cleaner. Theelectric vacuum cleaner 1 is a so-called upright-type, that is, stick-type vacuum cleaner. Also, theelectric vacuum cleaner 1 includes a vacuum cleanermain body 2 having a vertically longitudinal shape, and anelectric blower 3 is housed in a lower part of the vacuum cleanermain body 2, while a dust collectingsection 4 is provided above theelectric blower 3. Further, ahose body 5 is connected to an upper part on the rear side of the vacuum cleanermain body 2 to communicate with the upstream side, that is, suction side of thedust collecting section 4, and the leading end portion on the suction side of thehose body 5 is connected with a cylindrical connectingduct portion 6, ahandheld duct portion 7, and anextension duct 8 in a communicating manner in this order. Furthermore, the leading end portion on the suction side of theextension duct 8 is inserted in the upper end portion, one end portion of acylindrical attachment 9 that is provided in a lower part on the rear side of the vacuum cleanermain body 2. Then, in the lower end portion, the other end portion of theattachment 9, there is inserted and connected the base end portion on the downstream side, that is, exhaust side of afloor brush 11 as an intake port body. - In the upper end portion of the vacuum cleaner
main body 2, there is provided an arc-shaped handle part 12 to make it possible to carry theelectric vacuum cleaner 1. Also, in an upper part on the rear side of the vacuum cleanermain body 2, there is provided an extensionduct fixing part 13 for fixing theextension duct 8 thereto detachably. Further, in a rear part of the vacuum cleanermain body 2, there are bored a plurality of long outlet holes not shown in the figures to communicate with the exhaust side of theelectric blower 3. Then, in a position of the vacuum cleanermain body 2 facing the rear part of thedust collecting section 4, there is formed an approximatelycircular intake port 14 in an opening manner. In the vacuum cleanermain body 2, there are also formed a plurality of Exhaustports 15 in an opening manner below theintake port 14. - The
intake port 14 communicates with thefloor brush 11 so that air containing dust that is sucked through thefloor brush 11 by driving theelectric blower 3 passes therethrough. Also, on the exhaust side of theintake port 14, there is provided a separatingsection 16. - Using inertia difference due to specific gravity or size, the separating
section 16 is adapted to separate dust that is sucked therein through thefloor brush 11 by driving theelectric blower 3 to pass through theintake port 14 into coarse dust having a relatively large specific gravity or size and fine dust having a specific gravity or size smaller than that of the coarse dust, the section comprising an approximately straight cylindrical separatingmain body part 17 that is provided concentrically with theintake port 14. The separatingmain body part 17 protrudes into the dust collectingsection 4 with the diameter thereof being reduced from theintake port 14 side toward the front side of the vacuum cleanermain body 2, that is, from theintake port 14 side toward theexhaust ports 15 side. In addition, on the periphery of the separatingmain body part 17, there are bored a plurality ofauxiliary openings 18 that penetrate the separatingmain body part 17 in the radial direction. - The
auxiliary openings 18 are separated from each other in the circumferential direction of the separatingmain body part 17 at approximately the same spacing. Also,mesh filters 18a are installed in the respectiveauxiliary openings 18 in such a manner as to cover the respectiveauxiliary openings 18. - The
exhaust ports 15 are provided along the vertical direction of the vacuum cleanermain body 2 to have a long hole shape, and are separated from each other in the horizontal direction, that is, the width direction of the vacuum cleanermain body 2 at approximately the same spacing. Also, on the exhaust side of theexhaust ports 15, there is provided acommunication air passage 19 that communicates with the suction side of theelectric blower 3. - Then, the
intake port 14 and theexhaust ports 15 are provided in approximately the same direction toward the separatingsection 16, as shown inFig. 2 , to face the rear part of thedust collecting section 4. - The
electric blower 3 is housed in the vacuum cleanermain body 2 with the suction side thereof facing upward. Also, the suction side of theelectric blower 3 is connected airtightly to the dust collectingsection 4 via theexhaust ports 15. Further, theelectric blower 3 is driven with power to be supplied from an external power supply not shown in the figures via a power cord not shown in the figures that is wound unwindably and windably around acode reel 22 that is provided rotatably in the rear part of the vacuum cleanermain body 2. - The
dust collecting section 4 is provided detachably to the vacuum cleanermain body 2. As shown inFig. 1 , thedust collecting section 4 also includes: a hollow housingmain body part 25; apartition wall 26 provided in the housingmain body part 25; and anopenable cover part 27 capable of opening and closing the housingmain body part 25. - The housing
main body part 25 communicates with the separatingsection 16, and is separated by thepartition wall 26 into a coarse dust air passage (main communication passage) 31 on the front side and a fine dust air passage (auxiliary air passage) 32 on the rear side. - The coarse
dust air passage 31 communicates with the downstream side of the separatingmain body part 17 of the separatingsection 16 via a vent hole 33 that is formed in thepartition wall 26 in an opening manner concentrically with the separatingmain body part 17, and is bent downward with respect to the axial direction of the separatingmain body part 17 as well as being formed into a longitudinal shape along the vertical direction, that is, the longitudinal direction of the vacuum cleanermain body 2. Then, the coarsedust air passage 31 is adapted to flow coarse dust thereinto with part of the air that is sucked through theintake port 14, having a dust collecting function for mainly collecting the coarse dust in a lower part thereof. Further, the downstream side of the coarsedust air passage 31 communicates with the finedust air passage 32 via acommunication port 35 as an opening portion with alower mesh filter 34 as a first filter provided therein that is opened below the vent hole 33 in thepartition wall 26. - Here, the
lower mesh filter 34 is adapted to prevent coarse dust collected in the coarsedust air passage 31 from leaking through thecommunication port 35 for letting air that is flowed into the coarsedust air passage 31 to carry the coarse dust out of the coarsedust air passage 31. - Also, the
communication port 35 is formed into a longitudinal shape along the coarsedust air passage 31. - Meanwhile, the fine
dust air passage 32 communicates with the downstream side of theauxiliary openings 18 of the separatingsection 16, being formed into a vertically longitudinal shape in parallel with the coarsedust air passage 31 below the separatingmain body part 17. Then, the finedust air passage 32 is adapted to flow minute dust that has passed through themesh filters 18a in theauxiliary openings 18 thereinto with air that does not pass through the coarsedust air passage 31, that is, the rest of the air that is sucked through theintake port 14, housing afilter body 36 for trapping the minute dust. Further, in a lower part on the rear side of the finedust air passage 32, there is formed anexhaust communication port 37 communicating with theexhaust ports 15 in an opening manner. - The
filter body 36 has apleat filter 38 as a second filter and aframe body 39 for holding the periphery of thepleat filter 38 to be detachable within the finedust air passage 32. - The
pleat filter 38 is formed into a wave shape in an anteroposteriorly-curved manner, and a crease is formed in the vertical direction, that is, the direction along the finedust air passage 32. Also, thepleat filter 38 is disposed in a position corresponding to that of thelower mesh filter 34 in thecommunication port 35 to face the rear side, that is, the downstream side of thelower mesh filter 34 so as to be perpendicular to the air flow from the coarsedust air passage 31. Further, thepleat filter 38 is formed larger than thelower mesh filter 34, when viewed from the front, to have a size corresponding to theentire communication port 35. - In addition, the
frame body 39 is formed into a square frame shape to be installed in the finedust air passage 32 in an inclined manner so that the upper side of thepleat filter 38 is positioned forward relative to the lower side thereof. Further, theframe body 39 is provided with aninclined plate part 41 that is inclined downward from the rear side toward the front side thereof below thepleat filter 38. The front end portion, that is, the leading end portion of theinclined plate part 41 is positioned in a lower part of the finedust air passage 32 to continue to a minutedust collecting section 42 that is provided in theopenable cover part 27. The minutedust collecting section 42, which is adapted to collect minute dust that has been trapped in thepleat filter 38 and fallen down theinclined plate part 41, can be opened and closed by opening and closing theopenable cover part 27. - Then, in a rear part of the
filter body 36, there is provided dusting means 43 for removing, that is, shaking off minute dust that is trapped in thepleat filter 38. The dusting means 43 is adapted to shake off minute dust that is trapped in thepleat filter 38 to be made to fall down into the minutedust collecting section 42 by, for example, driving a motor not shown in the figures in a rotating manner to vibrate thepleat filter 38. - Further, the
exhaust communication port 37 faces and communicates with theexhaust ports 15. Theexhaust communication port 37 is adapted to let sucked air out through the rear part of the finedust air passage 32 toward theexhaust ports 15. Thus, thefilter body 36 communicates with the suction side of theelectric blower 3 via theexhaust communication port 37 and theexhaust ports 15. A lower filter not shown in the figures is further installed in theexhaust communication port 37 in such a manner as to cover the entireexhaust communication port 37. - Also, the
partition wall 26 is positioned between the coarsedust air passage 31 and the finedust air passage 32, having a surface direction along the horizontal direction intersecting with the anteroposterior direction of theelectric vacuum cleaner 1, and is formed into a vertically longitudinal shape as well as continues from the upper end portion in the housingmain body part 25 through theopenable cover part 27. Further, thecommunication port 35 provided in thepartition wall 26 is separated downward from the vent hole 33 and is opened to be a longitudinal shape from a position above the vertically central region of thepartition wall 26 through the vicinity of the lower end portion of thepartition wall 26. Then, thelower mesh filter 34 provided in thecommunication port 35 is disposed in a grid pattern across theentire communication port 35. - In addition, the
openable cover part 27 is provided vertically rotatably in a rear part of the lower end portion of the housingmain body part 25. Further, theopenable cover part 27 can be opened and closed with respect to the housingmain body part 25 by operating a cover part clamp not shown in the figures. - As shown in
Fig.3 , thehose body 5 has an elongated accordion-type cylindrical shape made of, for example, flexible synthetic resin to be made stretchable in the axial direction thereof. - The connecting
duct portion 6 is formed into a cylindrical shape made of, for example, synthetic resin harder than thehose body 5, and is provided concentrically with thehose body 5 to communicate with the leading end portion of thehose body 5. The connectingduct portion 6 is also connected detachably to the base end portion on the exhaust side of thehandheld duct portion 7 in a communicating manner. - The
handheld duct portion 7 includes: an approximately cylindricalmain body part 46 that communicates with the leading end portion on the suction side of the connectingduct portion 6 and the base end portion on the exhaust side of theextension duct 8; and a holdingpart 47 protruding radially from themain body part 46. The holdingpart 47 protrudes from the outside surface on the leading end side of themain body part 46 to be bent toward the base end side of themain body part 46. The holdingpart 47 is also provided with a plurality of setup buttons not shown in the figures for driving theelectric blower 3 in a predetermined driving mode. - The
extension duct 8 is adapted to function as an arm when an operator operates theelectric vacuum cleaner 1, being formed into an elongated cylindrical shape, that is, a longitudinal shape made of metal such as aluminum. Theextension duct 8 communicates with the suction side of theelectric blower 3 via thehandheld duct portion 7, the connectingduct portion 6, thehose body 5, and thedust collecting section 4. - Then, a packing 79 is installed in the
attachment 9 so that the leading end portion of theextension duct 8 and the base end portion of thefloor brush 11 are inserted detachably into acommunication duct 82, respectively, from above and below to be connected airtightly. - As shown in
Figs.1 and3 , thefloor brush 11 is placed on a floor surface as a to-be-cleaned surface to support theelectric vacuum cleaner 1, communicating with the leading end portion on the suction side of theextension duct 8 through theattachment 9 with theextension duct 8 being inserted in the upper end portion of theattachment 9. - The
floor brush 11 also includes a hollow horizontally-long case body 81 with asuction port 81a being formed in a lower part thereof facing the floor surface in an opening manner. On a rear part of thecase body 81, there is rotatably provided thecylindrical communication duct 82 in a protruding manner to communicate with thesuction port 81a, and thecommunication duct 82 is inserted into the lower end portion of theattachment 9 to be connected airtightly. - Here, the
communication duct 82 is arranged detachably against theattachment 9 using abrush clamp 83 provided in a rear part of theattachment 9. Also, thecommunication duct 82 is in contact airtightly with the packing 79. - Further, on either side of the
communication duct 82 of thefloor brush 11, there are providedbrush following wheels 84 rotatably. Theelectric vacuum cleaner 1 can travel on the floor surface forward and backward using thebrush following wheels 84. - Next will be described a cleaning operation according to the above-described embodiment.
- In a normal cleaning operation, the power cord is plugged into a socket not shown in the figures with the
extension duct 8 being attached to the vacuum cleanermain body 2, and the holdingpart 47 of thehandheld duct portion 7 is held to operate a predetermined setup button to drive theelectric blower 3. - Then, the operator holds the holding
part 47 to allow theelectric vacuum cleaner 1 to travel forward and backward and suck dust through thesuction port 81a of thefloor brush 11 to clean the floor surface. - Also, when cleaning a narrow space such as a door rail where the width of the
floor brush 11 cannot enter, theextension duct 8 is detached from the vacuum cleanermain body 2 to suck dust through the leading end portion of theextension duct 8. - Further, in a cleaning operation on a desk, etc., the connecting
duct portion 6 is detached from thehandheld duct portion 7 to suck dust through the leading end portion of the connectingduct portion 6. - Air sucked with dust passes through the
intake port 14 and the vent hole 33 through thehose body 5 as sucked air to subsequently flow into the separatingsection 16. - The sucked air is then restricted through the separating
main body part 17 to increase the flow rate thereof, and coarse dust among the dust contained in the sucked air having a relatively large specific gravity or size passes through the separatingmain body part 17 straightforward with sucked air W1 to flow into the coarsedust air passage 31, while fine dust having a relatively small specific gravity or size is separated in the circumferential direction of the separatingmain body part 17 to flow into theauxiliary openings 18 to be trapped partially in themesh filters 18a. Minute dust that has passed through themesh filters 18a then flows into the finedust air passage 32 with sucked air W2. - The coarse dust flowing into the coarse
dust air passage 31 is trapped when the sucked air W1 flowing into the coarsedust air passage 31 passes through thelower mesh filter 34 to be collected in the coarsedust air passage 31. Then, the sucked air W1 with the coarse dust being removed passes through thepleat filter 38 to subsequently flow from theexhaust ports 15 into thecommunication air passage 19 through theexhaust communication port 37 and then flow toward the suction side of theelectric blower 3. - Meanwhile, the minute dust flowing into the fine
dust air passage 32 is to be trapped in thepleat filter 38 when the sucked air W2 flows through thepleat filter 38 vertically. Then, the sucked air W2 with the minute dust being removed flows from theexhaust ports 15 into thecommunication air passage 19 through theexhaust communication port 37 to flow toward the suction side of theelectric blower 3. - The sucked air flowing into the
electric blower 3 then passes through theelectric blower 3 to be exhausted from the vacuum cleanermain body 2 through an outlet hole as outlet air. - Also, after the cleaning operation, etc., the dusting means 43 is to be driven by the motor not shown in the figures so that the minute dust trapped in the
pleat filter 38 is shaken off from thepleat filter 38 and then collected in the minutedust collecting section 42 through theinclined plate part 41. - Further, the dust collected in the coarse
dust air passage 31 and the minutedust collecting section 42 is to be put into a trash, etc., not shown in the figures provided outside thedust collecting section 4 by detaching thedust collecting section 4 from the vacuum cleanermain body 2 with theelectric blower 3 being stopped and operating the cover part clamp to open theopenable cover part 27. - The
dust collecting section 4 is subsequently attached to the vacuum cleanermain body 2 again to be used. - As mentioned above, in the above-described embodiment, it is arranged that in the
partition wall 26 positioned between the coarsedust air passage 31 through which coarse dust separated in theseparating section 16 passes with sucked air W1 and the finedust air passage 32 through which minute dust separated in theseparating section 16 passes with residual sucked air W2, there is formed thecommunication port 35, which is adapted to let the sucked air W1 flowing into the coarsedust air passage 31 out of the coarsedust air passage 31, along the coarsedust air passage 31 in an opening manner, and that thecommunication port 35 is provided with thelower mesh filter 34 for preventing dust collected in the coarsedust air passage 31 from leaking from the coarsedust air passage 31. - It is consequently possible to ensure an increased area of the
lower mesh filter 34 easily while saving space without increasing the cross-sectional area of the coarsedust air passage 31 or the size of the vacuum cleanermain body 2, etc., relative to the case where a lower mesh filter is formed along, for example, a direction intersecting with the coarsedust air passage 31. - Particularly, in the above-described embodiment, since the separating
section 16 includes the approximately straight cylindrical separatingmain body part 17 and theauxiliary openings 18 bored on the periphery of the separatingmain body part 17 to separate dust contained in sucked air straightforward, it is possible to further reduce the size of the separatingsection 16 and theelectric vacuum cleaner 1 relative to the case where a cyclone separating section for swirling sucked air to centrifuge dust is used, for example. - In addition, since the coarse
dust air passage 31 has the dust collecting function for collecting dust that passes therethrough, it is possible to reduce the size of the vacuum cleanermain body 2 relative to the case where a dust collecting section is provided separately from the coarsedust air passage 31. - Further, since the
air passages dust air passage 31 has the dust collecting function in a lower part thereof, dust flowing into theair passages main body part 25, resulting in an easy separation between sucked air and dust. - Then, since the
pleat filter 38 is provided along the finedust air passage 32 in a position corresponding to that of thelower mesh filter 34, the resistance in the air passages is increased due to thefilters filters - Also, since the
pleat filter 38 has a pleat shape with a crease formed therein along the finedust air passage 32, it is possible to ensure an increased surface area of thepleat filter 38 through which sucked air W2 passes, resulting in an improvement in dust collecting efficiency. - Furthermore, since the
intake port 14 and theexhaust ports 15 are positioned facing the rear part of thedust collecting section 4 on the same side of the housingmain body part 25, it is only required to provide a seal packing, etc., in a rear part of thedust collecting section 4 when attaching thedust collecting section 4 to the vacuum cleanermain body 2, resulting in an improvement in sealing performance relative to the case where seal packing, etc., is provided in both front and rear parts of thedust collecting section 4, for example. - Then, since the
pleat filter 38 is inclined downward toward the front side and theinclined plate part 41 continuing to the upper part of the minutedust collecting section 42 is provided below thepleat filter 38, it is possible to collect minute dust shaken off from thepleat filter 38 when the dusting means 43 is driven in the minutedust collecting section 42 reliably. - Also, applying the foregoing
dust collecting section 4 to an upright-type electric vacuum cleaner allows the configuration of the vacuum cleanermain body 2 having a vertically longitudinal shape to be utilized effectively to prevent the size of the vacuum cleanermain body 2 from increasing. - It is noted in the above-described embodiment that the separating
section 16 is not restricted to the above-described configuration as long as it is capable of separating dust in accordance with the specific gravity or size thereof. - Similarly, the details of the
electric vacuum cleaner 1 are not restricted to the above-described configuration. - Then, the
electric vacuum cleaner 1 can be applied correspondingly to not only a stick-type one but also a so-called canister-type one, etc. - The present invention is preferably utilized for, for example, an upright-type electric vacuum cleaner.
Claims (7)
- An electric vacuum cleaner comprising
a vacuum cleaner main body (2) with an electric blower (3) housed therein comprising an intake port (14) and an exhaust port (15),
a separating section (16) for separating dust that is sucked therein with air through the intake port (14) by driving the electric blower (3) into coarse dust and fine dust,
a coarse dust air passage (31),
a fine dust air passage (32) provided parallel with the coarse dust air passage (31),
a partition wall (26) positioned between the coarse dust air passage (31) and the fine dust air passage (32),
an opening portion (35) opened in the partition wall (26) along the coarse dust air passage,
a first filter (34) provided in the opening portion (25); and
a second filter (38) provided on the downstream side of the fine dust air passage (32), characterized in that
the separating section (16) is constructed and arranged such that the coarse dust flows into the coarse dust air passage (31) with part of the air and the fine dust flows into fine dust air passage (32) with the rest of the air. - The electric vacuum cleaner according to claim 1, wherein
the separating section (16) comprises a separating main body part (17) that is formed into an approximately cylindrical shape and communicates with the intake port (14) and an auxiliary opening (18), bored on the periphery of the separating main body part (17). - The electric vacuum cleaner according to claim 1 or 2, wherein
the coarse dust air passage (31) has a dust collecting function for collecting dust that passes therethrough. - The electric vacuum cleaner according to claim 3, wherein
the coarse dust air passage (31) and the fine dust air passage (32) run vertically parallel with each other and are formed below the separating section (16), and wherein
the coarse dust air passage (31) has the dust collecting function in a lower part thereof. - The electric vacuum cleaner according to any of claims 1 to 4, wherein
the second filter (38) is provided in a position corresponding to that of the first filter (34) along the fine dust air passage (32). - The electric vacuum cleaner according to any of claims 1 to 5, wherein
the second filter (38) is a pleat filter with a crease formed therein along the fine dust air passage (32). - The electric vacuum cleaner according to any of claims 1 to 6, wherein
the vacuum cleaner main body (2) is formed into a vertically longitudinal shape.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003357666 | 2003-10-17 | ||
PCT/JP2004/015160 WO2005037048A1 (en) | 2003-10-17 | 2004-10-14 | Electric cleaner |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1674015A1 EP1674015A1 (en) | 2006-06-28 |
EP1674015A4 EP1674015A4 (en) | 2007-10-31 |
EP1674015B1 true EP1674015B1 (en) | 2011-03-02 |
Family
ID=34463250
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04792391A Expired - Fee Related EP1674015B1 (en) | 2003-10-17 | 2004-10-14 | Electric cleaner |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1674015B1 (en) |
JP (1) | JP4251647B2 (en) |
KR (1) | KR100723118B1 (en) |
CN (1) | CN1863476B (en) |
DE (1) | DE602004031646D1 (en) |
WO (1) | WO2005037048A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5306968B2 (en) * | 2009-11-06 | 2013-10-02 | 三菱電機株式会社 | Electric vacuum cleaner |
GB2531071B (en) | 2014-10-10 | 2017-03-22 | Dyson Technology Ltd | A domestic cyclonic vacuum cleaner |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2232913A (en) * | 1936-10-03 | 1941-02-25 | Electrolux Corp | Vacuum cleaner |
JPS4113990Y1 (en) * | 1964-06-19 | 1966-06-29 | ||
US3426510A (en) * | 1965-09-13 | 1969-02-11 | Mil An Mfg Corp | Vacuum cleaner filter bag |
JPS5538132A (en) * | 1978-09-11 | 1980-03-17 | Hitachi Ltd | Dust collector of electric cleaner |
US6168641B1 (en) * | 1998-06-26 | 2001-01-02 | Akteibolaget Electrolux | Cyclone separator device for a vacuum cleaner |
US6596044B1 (en) * | 2000-03-06 | 2003-07-22 | The Hoover Company | Dirt collecting system for a vacuum cleaner |
US6385810B1 (en) * | 2000-05-05 | 2002-05-14 | The Hoover Company | Latch arrangement for a vacuum cleaner dirt receptacle |
CA2477266A1 (en) * | 2002-09-25 | 2004-04-08 | Toshiba Tec Kabushiki Kaisha | Electric vacuum cleaner |
DE20306405U1 (en) * | 2003-04-24 | 2003-08-28 | Bsh Bosch Siemens Hausgeraete | Removable dust collector |
-
2004
- 2004-10-14 EP EP04792391A patent/EP1674015B1/en not_active Expired - Fee Related
- 2004-10-14 CN CN2004800292076A patent/CN1863476B/en not_active Expired - Fee Related
- 2004-10-14 KR KR1020067006708A patent/KR100723118B1/en not_active IP Right Cessation
- 2004-10-14 WO PCT/JP2004/015160 patent/WO2005037048A1/en active Application Filing
- 2004-10-14 JP JP2005514775A patent/JP4251647B2/en not_active Expired - Fee Related
- 2004-10-14 DE DE602004031646T patent/DE602004031646D1/en active Active
Also Published As
Publication number | Publication date |
---|---|
KR20060085657A (en) | 2006-07-27 |
JP4251647B2 (en) | 2009-04-08 |
EP1674015A1 (en) | 2006-06-28 |
CN1863476A (en) | 2006-11-15 |
DE602004031646D1 (en) | 2011-04-14 |
EP1674015A4 (en) | 2007-10-31 |
CN1863476B (en) | 2010-04-28 |
WO2005037048A1 (en) | 2005-04-28 |
KR100723118B1 (en) | 2007-05-31 |
JPWO2005037048A1 (en) | 2007-11-22 |
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