WO2004039232A1 - 電気掃除機 - Google Patents
電気掃除機 Download PDFInfo
- Publication number
- WO2004039232A1 WO2004039232A1 PCT/JP2003/003365 JP0303365W WO2004039232A1 WO 2004039232 A1 WO2004039232 A1 WO 2004039232A1 JP 0303365 W JP0303365 W JP 0303365W WO 2004039232 A1 WO2004039232 A1 WO 2004039232A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dust
- air
- filter element
- reservoir
- filter
- Prior art date
Links
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
-
- 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
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
- A47L9/165—Construction of inlets
-
- 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
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
- A47L9/1658—Construction of outlets
- A47L9/1666—Construction of outlets with filtering means
-
- 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
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
- A47L9/1683—Dust collecting chambers; Dust collecting receptacles
-
- 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
- A47L9/20—Means for cleaning filters
-
- 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
- A47L9/26—Incorporation of winding devices for electric cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
- B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S55/00—Gas separation
- Y10S55/03—Vacuum cleaner
Definitions
- the present invention relates to an electric vacuum cleaner comprising: a first dust separation unit that separates dust in sucked dust-containing air; and a second dust separation unit disposed downstream of the separation unit.
- the present invention relates to a vacuum cleaner in which the first dust separation section separates using the inertia of dust.
- a cyclone-type vacuum cleaner that separates air and dust by eccentric separation in the first dust separation section and filtration and separation in the second separation section is disclosed in Japanese Patent Application Laid-Open No. 2002-104024. No. 1993, which is hereby incorporated by reference.
- This vacuum cleaner is provided with a dust cup having an open top, and an electric blower for applying a negative pressure to the inside of the cup. There is a filler at the top opening of the dust cup.
- An intake port is connected to the peripheral wall of the dust cup. The intake port is connected to an intake port for sucking dust through an intake passage.
- the dust-containing air sucked into the dust cup due to the operation of the electric blower turns in the cup. This swirl separates large dust from the air. The separated dust accumulates in the dust cup, and air is sucked into the electric blower through the filter.
- the inside of the cylindrical dust collector body is divided into an upper dust collecting chamber and a lower dust collecting chamber.
- the horizontal partition plate serving as this section has an exhaust pipe communicating the dust collection chambers at the center.
- the lower dust collecting chamber is provided with a tangential suction port.
- the suction port and the lower dust collecting chamber form a cyclone type first dust separating section.
- a filter is installed in the upper dust collection chamber to cover the suction side of the exhaust fan. This filter and the upper dust collecting chamber form a second dust separating section.
- Dust collected in the upper dust collecting chamber and lower dust collecting chamber rises every time the operation of the electric blower is restarted.
- the soaring dust can adhere or become entangled in the filter. For this reason, the filter is clogged at an early stage, and the action of separating air and dust is likely to be reduced.
- a vacuum cleaner using a pleated exhaust filter for filtering and separating dust from the air is known from Japanese Patent Application Laid-Open No. 2002-36080.
- the exhaust filter is surrounded by a rectangular frame-shaped partition, and the pleats extend vertically. For this reason, dust that adheres to the surface of the exhaust filter during operation of the electric blower is reduced when the operation is stopped. 3 Easy to drop. However, since the fallen dust is blocked by the lower frame of the compartment, the effective filtration area of the exhaust filter gradually decreases, and the filtration performance tends to deteriorate. Due to such circumstances, when a pleated filter is used for the second dust separation section, the action of separating air and dust in the first dust separation section is likely to be reduced.
- a vacuum cleaner that separates air and dust by inertia separation in the first dust separation section and filtration and separation by a pleated filter in the second separation section is disclosed in Japanese Patent Publication No. 61-2122563. Is known for.
- This vacuum cleaner has a partition having an opening for exposing the front part of a pleated main filter. This partition is in contact with the side circumference of the filter holder.
- a bottom plate is provided integrally with the bulkhead, and the bottom plate faces the main filter from below.
- a primary filter integrated with the bottom plate is provided on the outer periphery of the partition wall.
- the primary filter has a mesh part and an impermeable hose port facing wall.
- the wall facing the hose opening is designed to divert airflow from the dust chamber in the dust collection case to the front of the main filter.
- the hose connection port of the dust collection case faces the hose port facing wall.
- the dust-containing air collides with the wall facing the hose port, and
- the technology for separating dust from the dust does not teach a technology for separating dust using the inertia force of dust in the airflow to travel straight.
- the turbulence is generated by colliding the dust-containing air with the wall facing the hose opening, so that the windage loss is large.
- windage is large. Due to such circumstances, the separation effect of air and dust on the upstream side of the main filter is likely to be reduced.
- An object of the present invention is to provide a vacuum cleaner capable of suppressing a decrease in performance of separating air and dust and improving cleaning performance.
- the apparatus includes a first dust separation section, a first dust storage section, and a second dust separation section.
- the first dust separation unit is provided between the connection port of the cleaner body and the suction port of the electric blower built in the cleaner body.
- the first dust reservoir collects the dust separated in the first dust separator.
- the second dust separation unit is disposed between the first dust separation unit and the electric blower.
- the second dust separating section has a mat-shaped filter element for filtering dust from the air sucked into the intake port.
- the first dust separation unit includes an airflow path separating body that separates air and dust flowing through the connection port toward the intake port.
- the axis of the airway forming body is straight.
- the airflow path forming body has an inlet, an outlet, and an opening. Dust-containing air is introduced into the inlet through the connection port. The outlet vents the separated dust.
- the opening is provided between the inlet and the outlet. This opening allows a portion of the air flowing from the inlet to the outlet to be The air can be sucked into the air port. By this suction, the air is separated from dust that goes straight from the inlet port to the outlet port by inertia.
- air and dust sucked into the connection port by the operation of the electric blower are separated by the first dust separation section.
- the separated large dust is stored in the first dust storage portion, and is prevented from adhering to the filter element of the second dust separation portion.
- a first dust separation section In a preferred mode of the present invention, a first dust separation section, a first dust storage section, a second dust separation section, a partition, and a second dust storage section are provided.
- the first dust separation unit is provided between the connection port of the cleaner body and the intake port of the electric blower built in the cleaner body.
- the first dust reservoir collects the dust separated in the first dust separator.
- the second dust separation unit is arranged between the first dust separation unit and the electric blower.
- the second dust separating section has a mat-shaped filter element for filtering dust from the air sucked into the intake port. This filter element is used upright.
- the partition wall is composed of a negative pressure space for accommodating the second dust separating section and a first dust reservoir.
- the section is provided separately.
- the partition forms an air gap with the lower surface of the filter element.
- the gap is smaller than the negative pressure space and communicates with the negative pressure space.
- the second dust reservoir is provided below the second dust separator in communication with the lower end of the gap. The second dust reservoir collects dust falling from the filter element separately from the first dust reservoir.
- the first dust separation unit includes an airflow path separating body that separates air and dust flowing through the connection port toward the intake port.
- the axis of the airway forming body is straight.
- the airflow path forming body has an inlet, an outlet, and an opening. Dust-containing air is introduced into the inlet through the connection port. The outlet vents the separated dust.
- the opening is provided between the inlet and the outlet. This opening allows a part of the air flowing from the inlet to the outlet to be sucked into the suction port of the electric blower. By this suction, inertia is separated from dust that goes straight from the inlet to the outlet.
- the air and dust sucked into the connection port by the operation of the electric blower are separated by the first dust separation unit.
- the separated large dust is stored in the first dust storage portion, and is prevented from adhering to the filter element of the second dust separation portion.
- Wind damage is small because the flow of dust and air does not reverse or bypass. Therefore, since the decrease in the performance of separating air and dust is suppressed, it is possible to improve the cleaning performance.
- FIG. 1 is a perspective view showing a vacuum cleaner according to a first embodiment of the present invention.
- FIG. 2 is a perspective view showing the main body of the vacuum cleaner of FIG.
- Fig. 3 is a side view of the cleaner body of Fig. 2 with a partial cross section.
- Fig. 4 is a side view showing the cleaner body of Fig. 2 with the lid opened.
- FIG. 5 is a vertical sectional view showing a dust cup of the vacuum cleaner of FIG.
- FIG. 6 is a perspective view showing the dust cup of FIG. 5 partially cut away.
- FIG. 7 is a perspective view showing the dust cap of FIG. 5 viewed from the rear side with the second dust separating section removed and the filter of the second dust separating section removed.
- Fig. 8 is a cross-sectional view showing the dust cap of Fig. 5 with the second dust separator removed and the filter of the first dust separator removed.
- Fig. 9 is a perspective view showing the lower part of the dust cup shown in Fig. 5 from the rear side with the second dust separation part removed.
- Fig. 10 is a bottom view showing the dust cap of Fig. 5 with the bottom plate removed.
- FIG. 11 is a perspective view showing a second dust separating portion of the dust cap of FIG.
- FIG. 12 is a perspective view showing a part of a filter frame included in the second dust separating unit in FIG. 11;
- FIG. 13 is an enlarged cross-sectional view showing a part of a filter element included in the second dust separating unit in FIG.
- Fig. 14 is a perspective view showing the relationship between the dust remover of the vacuum cleaner of Fig. 1 and the cord reel as viewed from the front side.
- Fig. 15 is a perspective view showing the relationship between the dust remover and the cord reel of the vacuum cleaner in Fig. 1 as viewed from the rear side.
- Fig. 16 is an exploded perspective view showing the dust remover of Fig. 15 together with the cord reel.
- FIG. 17 is a cross-sectional view showing the torque transmission mechanism of the dust removing device of FIG.
- FIG. 18 is a sectional view taken along the line F 18 -F 18 in FIG. Fig. 9 is a sectional view taken along the line F19-F19 in Fig. 17.
- FIG. 20 is a longitudinal sectional view showing a dust cup of the electric vacuum cleaner according to the second embodiment of the present invention.
- FIG. 21 is a longitudinal sectional view showing a dust cap of the electric vacuum cleaner of the electric vacuum cleaner according to the third embodiment of the present invention.
- FIG. 22 shows the second dust separation part of the dust cap of Fig. 21.
- the vacuum cleaner denoted by reference numeral 10 in FIG. 1 includes a vacuum cleaner main body 20.
- One end of a flexible dust suction hose 21 is detachably connected to the main body 20.
- the other end of the dust suction hose 21 has a hand operation part 22.
- the operation unit 22 has a handle 22A.
- the handle 22A is provided with an operation switch 22B for remote control.
- An extendable extension tube 23 is detachably connected to the hand operation unit 22.
- a suction port 24 is detachably connected to the end of the extension pipe 23.
- the dust suction hose 21, the extension pipe 23, and the suction port body 24 form an intake passage body 25.
- the cleaner main body 20 includes a main body case 30, a dust cup 50, and a lid 40.
- the dust cup 50 is detachably provided in the main body case 30.
- the cover 40 is attached to a front part of the main body case 30 by a hinge (not shown), and the cover 40 is rotatable in a vertical direction.
- the main body case 30 includes a case main part 34 and a cup receiving part 35.
- the case main part 34 has a built-in electric blower 33.
- the electric blower 33 has an intake port 33A that opens forward.
- the electric blower 33 is arranged with the intake port 33A being mostly located at the top of the case main part 34. I have.
- the cup receiving portion 35 is integrally protruded forward from a lower portion of the case main portion 34.
- the receiving portion 35 is formed in a concave shape that opens upward.
- a dust cup 50 is detachably mounted on the cup receiving portion 35.
- the dust cup 50 is attached to the cleaner body 20 by being sandwiched from above and below by a closed lid 40 and a cup receiving portion 35.
- bulging portions 36 are integrally formed on both side walls in the width direction of the case main portion 34. These bulges 36 are provided obliquely from the upper front part to the lower rear part of the case main part 34.
- An exhaust portion 38 comprising a plurality of exhaust holes is provided at the forward portions of both side walls of both the bulging portion 36 and the case main portion 34.
- the exhaust section 38 and the exhaust port 33B of the electric blower 33 communicate with each other via an exhaust air path (not shown).
- the air exhausted from the exhaust port 33B is exhausted outside from the exhaust part 38 through the exhaust air path.
- a rear wheel 37 is rotatably attached to the lower ends of the bulges 36.
- a front wheel 39 composed of a cascade is mounted. The front wheel 39 and the rear wheel 37 allow the cleaner body 20 to move on a surface to be cleaned such as a house floor.
- the case main part 34 is provided with a cord reel 125 and a dust eliminator 149 described later.
- the cord reel 125 is installed below the electric blower 33. This cord reel 125 supplies electric power of a commercial AC power supply to the electric blower 33 and the like.
- the dust removing device 149 is operated by using the rotation when the power cord of the cord reel 125 is put in and out as a driving force. The dust removing device 149 applies vibration for dust removal to a filter element 82 described later.
- the dust remover 149 can be omitted.
- a battery for supplying electric power to the electric blower 33 or the like may be incorporated in place of the cord reel 125. It is also possible to provide a dust removal device with a built-in battery. In this case, a dust removing operation unit may be provided outside the main body case 30, and the dust removing device may be operated by operating the operation unit.
- Lid 40 has top plate 41 and peripheral wall 42.
- the top plate 41 is formed substantially elliptical in plan view.
- the peripheral wall 4 2 is formed integrally around the top plate 4 1.
- a connection port 43 to which a dust suction hose 21 is detachably connected is provided at a front portion of the peripheral wall 42.
- the connection port 43 has a pipe shape extending in the front-rear direction with the lid 40 closed. Both ends in the axial direction of the connection port 43 are respectively opened. With the lid 40 closed, the rear end opening 45 of the connection port 43 is placed in front of the first dust separation part 61 described later.
- the dust cup 50 includes a container case 53, a handle 54 provided on the container case 53, and an openable / closable bottom plate 57. have.
- the rear part of the container case body 53 is open almost entirely. This opening 5 1
- a vent hole 52 is provided in the front wall 50a of the container case body 53 facing the container case body 53.
- the container case body 53 includes a first dust reservoir 55, a space (hereinafter, referred to as a negative pressure space) 56 that becomes a negative pressure by operation of the electric blower 33, and a first dust separator 61. And
- the first dust reservoir 55 is provided below the container case 53.
- the negative pressure space 56 is provided above the first dust reservoir 55.
- the negative pressure space 56 functions as an air path from an opening 64 of the second dust separation unit 61 to a second dust separation unit 80 described later. Further, the negative pressure space 56 also functions as an air passage from a later-described ventilation port 59 to the second dust separation section 80.
- the first dust reservoir 55 and the negative pressure space 56 are juxtaposed in the vertical direction of the cleaner body 20.
- the direction in which the dust reservoir 55 and the negative pressure space 56 are arranged may be any of the left-right (width) direction, the front-back (axis) direction, and the oblique direction of the cleaner body 20.
- the bottom surface of the first dust reservoir 55 is open.
- a bottom plate 57 is attached to the bottom of the first dust reservoir 55 so that it can be opened and closed around the shaft. By opening the bottom plate 57, dust accumulated in the first dust reservoir 55 can be discarded.
- the closed state of the bottom plate 57 is released via a mechanism (not shown) that is interlocked with the pressing of the operation button provided on the handle 54.
- the first dust reservoir 55 and the negative pressure space 56 are partitioned by an upright wall 60 and a ceiling wall 58 which are continuous with each other.
- the upright wall 60 and the ceiling wall 58 function as partition walls.
- the upright wall 60 is provided at a lower portion of the container case body 53 approaching the opening 51.
- the ceiling wall 5 8 is bent from the upper end of the standing wall 60 and the front wall 50 a JP2003 / 003365
- the first dust reservoir 55 is defined by the lower peripheral wall of the container case 53 and the partition.
- the negative pressure space 56 is defined by the upper peripheral wall of the container case body 53 and the partition wall.
- a ventilation hole 59 is formed in the ceiling wall 58 of the first dust reservoir 55.
- the ventilation hole 59 communicates the first dust reservoir 55 with the negative pressure space 56.
- the ventilation hole 59 faces substantially the center of the fifth dust reservoir 55.
- a filter F 1 is attached to the vent hole 59.
- the filter F1 is made of, for example, a net.
- a hole 58 A (see FIGS. 7 and 9) is formed in the ceiling wall 58 toward the standing wall 60.
- the upright wall 60 is provided with a guide wall 55G (see FIGS. 5 and 10).
- the guide wall 55G faces the hole 58A and is provided for generating a swirling flow in the first dust reservoir 55.
- the first dust separation part 61 is disposed in the negative pressure space 56.
- the first dust separation section 61 has a tubular air path forming body 62 and a guide section 63.
- the internal space of the airflow path forming body 62 functions as a straight airway 62a.
- the guide portion 63 communicates the air path forming member 62 with the first dust reservoir 55, and guides the dust separated by the air path forming member 62 to the first dust reservoir 55.
- the air path forming member 62 has a linear axis SL, and is open at one axial end and the other axial end.
- the airflow path forming body 62 has a plurality of separation openings 64 located at equal intervals between the openings at both ends. These openings 6 4 are for dust capture Is blocked by filter F 2.
- the airflow path forming body 62 includes a frame composed of a pair of large and small circular frames W1, W2 and a plurality of ribs W3. Have.
- the rib W3 connects the frame portions W1 and W2.
- Each opening 6 4 is made of a space surrounded by both frame portions W 1, W 2 and rib W 3.
- the filter F2 is made of, for example, a net, and is attached in a cylindrical shape along the inner peripheral surface of the frame. Therefore, the air path forming member 62 has a cylindrical shape with openings at both ends in the axial direction, for example.
- An opening at one axial end of the airflow path forming body 62 forms an inlet 62A.
- the opening at the other end in the axial direction of the airflow path forming body 62 forms an outlet 62B.
- the axis SL of the airflow path forming body 62 that divides the straight airflow path 62a extends in the axial direction of the cleaner main body 20 (the front-back direction in the present embodiment).
- the straight air passage 62 a communicates with the air inlet 33 A of the electric blower 33 sequentially through the opening 64 of the air passage forming member 62 and the negative pressure space 56 of the container case 53.
- the diameter of the large inlet 62A of the airflow path forming body 62 is larger than the diameter of the vent hole 52 of the container case body 53.
- the air path forming member 62 is connected to the container case member 53.
- the ventilation hole 52 is located in a region where the inlet 62A of the container case 53 is projected on the front wall 50a.
- the diameter of the outlet 62B of the airway forming body 62 is smaller than the diameter of the inlet 62A and the vent 52. As a result, the diameter of the airflow path forming body 62 gradually decreases from the inlet 62A to the outlet 62B.
- the direction in which the axis SL of the airflow path forming body 62 extends and the direction in which the axis of the connection port 43 of the lid body 40 extends are substantially linearly continuous.
- the intake port 33 A of the electric blower 33 is arranged on these axis extensions.
- the connection port 4 3, the air hole 5 2, the straight air passage 6 2 a, the opening 5 1, and the suction port 3 3 A of the electric blower 3 3 are arranged in the axial direction of the cleaner body 20 (this embodiment). In the front-back direction).
- the guide portion 63 is continuous with the outlet 62 B of the air path forming member 62.
- the guide portion 63 has a tubular shape, and has an opening 63D joined to the outlet 62B.
- the plan interior 63 has a tubular shape having an inclined wall portion 63A and a winded wall portion 63B.
- the inclined wall portion 63A extends obliquely downward from the upper portion of the outlet 62B.
- the baffle wall 63B is curved and extends downward from the inclined wall 63A. This wall portion 63B faces the outlet 62B of the airflow path forming body 62.
- the lower portion of the guide portion 63 forms a tube portion 63C partially including an inclined wall portion 63A.
- the pipe portion 63C extends, for example, in the vertical direction, and is connected to the ceiling wall portion 58 and the upright wall 60 so as to cover the hole 58A. With this connection, the guide portion 63 communicates the straight air passage 62 a with the first dust reservoir portion 55.
- the upright wall 60 is provided slightly inside (front side) of the end of the opening 51 of the container case body 53. Utilizing the depth H from the opening 51 to the upright wall 60 (see FIG. 5), a filter 80 to be described later that closes the opening 51 is attached to the container case body 53.
- the container case body 53 supports A wall 7 1 is provided on the body.
- the support wall 71 is located outside the lower end of the upright wall 60.
- a second dust reservoir 72 having an open upper end is formed between the support wall 71 and the upright wall 60.
- the second dust reservoir 72 is provided independently of the first dust reservoir 55 to accumulate dust.
- the second dust reservoir 72 stores finer dust than the dust stored in the first dust reservoir 55.
- the second dust reservoir 72 is divided into a plurality of areas by a plurality of support ribs 73.
- the support wall 71 and the support rib 73 support a filter 80 described below from below.
- the lower end opening of the second dust reservoir 72 is arranged at the lower end opening of the first dust reservoir 55.
- the lower end openings of both dust reservoirs 55 and 72 are closed by a bottom plate 57 so that they can be opened and closed.
- the second dust reservoir 72 is formed in a concave shape with a dead end structure. The airflow does not pass through the second dust reservoir 72 in the dead end state as described above. In addition, the turbulence of the negative pressure space 56 can be prevented from spreading to the second dust reservoir 72.
- the second dust reservoir 72 may be configured to maintain most of the dust accumulated therein when turbulence affects the upper portion thereof. For this reason, it is permissible for dust to fly up to a negligible level when the effects of turbulence spread. It is not prohibited to provide a slanted or funnel-shaped baffle in the second dust reservoir 72. This baffle is placed in the second dust reservoir 72 from above. Allows the falling dust to pass through, but suppresses the effects of turbulence on the second dust reservoir.
- An annular sealing material 74 (see FIG. 5) is fixed to the inner surface of the bottom plate 57.
- the sealing material 74 simultaneously seals the lower ends of the dust reservoirs 55 and 72 with the bottom plate 57 closed.
- the use of a single sealing material 74 in this way is advantageous in that no sealing material is required for each of the dust reservoirs 55 and 72.
- the second dust reservoir 72 is not in communication with the first dust reservoir 55 adjacent thereto. For this reason, the entire lower end of the upright wall 60 is in contact with the inner surface of the closed bottom plate 57 to partition the two reservoirs 55, 72.
- the sealing material 74 can be attached to the lower end surfaces of both dust reservoirs 55, 72.
- the container case body 53 is removably mounted with a finhole 80 closing the opening 51.
- the filter 80 functions as a second dust separating section.
- the filter 80 has a shape extending in the direction in which the negative pressure space 56 and the dust reservoir 55 are arranged.
- the filter 80 is sized so as to fit into the opening 51 of the container case body 53.
- the filter 80 fitted into the opening 51 extends over the entire rearward projection area of the negative pressure space 56 and the majority of the rearward projection area of the dust reservoir 55, for example. Will be arranged.
- the upper part of the filter 80 attached to the container case body 53 is opposed to the negative pressure space 56 and the first dust separation part 61 therein, and the lower part of the filter 80 is Close to standing wall 60 And face each other.
- the container case body 53 is provided with regulating means. Specifically, as shown in Fig. 5, a step 53A located on the ceiling of the container case 53, and a corner 53B bordering the upright wall 60 and each of the ribs 73 are provided. Is provided. The depth of fitting of the filter 80 into the container case body 53 is restricted by the stepped portion 53A and the corner portion 53B.
- the filter 80 is provided upright and preferably tilted forward, for example, at an angle close to vertical.
- the forward inclination refers to a state in which the upper end of the filter 80 is inclined from the lower end so as to protrude upstream with respect to the airflow passing through the filter 80.
- a later-described filter element 82 may be tilted forward. This configuration is also included in the concept of tilting the filter forward.
- Tilting the filter 80 forward is excellent in that dust adhering to the upstream surface of the filter 80 is easily dropped when the operation of the vacuum cleaner 10 is stopped. In this case, the falling dust can be prevented from being hindered by dust adhering to the lower position.
- the filter 80 may be provided vertically without tilting forward, and in some cases, it may be tilted slightly backward.
- a gap G is formed between the lower part of the filter 80 attached to the container case 53 and the upright wall 60.
- the air gap G is much narrower than the negative pressure space 56 communicating thereabove, and the air passage cross-sectional area is small.
- the lower end of this gap G is located below this gap G
- the second dust reservoir 72 communicates with the second dust reservoir 72.
- the filter 80 includes a filter frame 81, and a filter element 82 mounted so as to cover the entire inside of the frame 8 #.
- the filter element 82 is a filter medium formed in a mat shape.
- the mat may be in the form of a flat plate or pleated, and may be a single layer or a plurality of layers. Paper, cotton, cloth, glass wool, nonwoven fabric, synthetic foam, or the like can be used as the filter medium of the filter element 82.
- Reference numeral 87 in FIGS. 6 and 1 denotes an annular rubber seal packing fitted around the filter frame 81.
- a pleated filter element 82 is used in which a mat is bent in a wavy shape in order to expand the filtration area.
- the mesh of the filter element 82 is finer than the meshes of the filters F 1 and F 2 arranged upstream of the element 82.
- the pleated filter element 82 has a surface groove 82 b extending vertically in the surface thereof.
- the surface groove 82b is open forward.
- the filter element 82 has a back surface groove 82a extending vertically in the back surface.
- the back surface groove 82a is open rearward.
- the surface treatment layer 82 C is a coating layer that has air permeability and reduces the frictional resistance of the upstream surface to smooth the surface properties.
- the surface treatment layer 82 C having a low coefficient of friction suppresses dust from adhering to the surface of the filter element 82.
- Surface treatment layer 82C is made of stainless steel, titanium, copper, Fine particles of metal such as aluminum are attached to the upstream surface by, for example, sputtering.
- the metal fine particles are adhered to the upstream surface in the order of several angstroms so that the filter element 82 can maintain the air permeability required for filtering fine dust.
- a surface treatment layer 82 C is not limited to a metal fine particle layer.
- the surface treatment layer 82C can be provided on both the front and back surfaces of the filter element 82 by dipping the filter element 82 in a tetrafluoroethylene solution and then drying in a drying oven. .
- the filter frame 81 supports the filter element 82 from four rounds.
- the lower frame portion 81a serving as the lower end portion of the filter frame 81 has an element support 84 and a slanted portion 85 below the element support 84, as shown in FIGS.
- the element supports 84 and the inclined portions 85 function as dust discharging means 83.
- the element support 84 has closed portions 84a and notched portions 84b alternately.
- the closing portion 84 a and the notch portion 84 b are provided at a predetermined pitch corresponding to the pleats of the filter element 82.
- the closing portion 84a closes the lower end of the back surface groove 82a of the filter element 82, and is fitted and adhered to the lower end.
- the notch 84b functions as a dust passage.
- the notch 84b is formed open to the front (upstream) of the file frame 81.
- the notch 84b is provided so as not to close the lower end of the surface groove 82b of the filter element 82.
- the upper frame part 8 1b of the filter frame 81 also has Element supports 86 similar to element supports 84 are provided.
- the upper end of the filter element 82 is adhesively fixed to the element support 86.
- the inclined portion 85 protrudes obliquely downward from the rear of the element support 84 (downstream edge).
- the inclined portion 85 faces the notch portion 84.
- the space formed between the inclined portion 85 and the element support 84 extends in the width direction of the filter frame 81. This space communicates with the surface groove 82b.
- the forward width of the inclined portion 85 is shorter than the forward width of the closed portion 84a. Thus, the space communicates with the second dust reservoir 72 below the space.
- the cord reel 125 built in the case main part 34 has a take-up drum 126, a brake device 133, and the like. ing.
- the winding drum 126 is rotatably attached to the support shaft 122, and is rotated by the urging force of a spring (not shown).
- the power cord KD (see FIG. 3) is wound by rotating the winding drum 1 26.
- the support shaft ⁇ 22 is erected on the bottom of the main body case 30.
- the take-up drum 1 26 has an upper flange 27 and a lower flange 128.
- a large-diameter drive gear 1 29 is provided on the upper surface of the upper flange 1 27. This gear 1 29 is made of a number of teeth arranged in a ring in the circumferential direction of the upper flange 1 27.
- a base plate 1 2 3 and a base plate retainer ⁇ 2 4 are attached to the support shaft 1 2 2.
- the brake device 1 3 1 is attached to the base plate 1 2 3.
- the brake device 13 1 has a brake arm 13 2, a brake roller (not shown), and a spring (not shown).
- the base plate 123 has a vertical axis 123a, and the brake arm 132 is rotatably mounted on the axis 123a.
- the brake rollers are mounted on the free ends of the brake arms 1 3 2.
- the spring urges the breaker 132 in the direction in which the breaker comes into pressure contact with the peripheral surface of the upper flange 127.
- the brake device 13 1 locks the rotation of the winding drum 1 26 by causing the brake roller 13 to bite between the brake arm 13 2 and the upper flange 1 27 in a wedge shape.
- the biting force is carried by the spring that urges the brake arm 132 and the spring that urges the winding drum 126 (not shown).
- the winding drum 126 is rotated against the urging force of the mainspring. Accordingly, the rake roller is slightly moved in the rotation direction of the winding drum 126.
- the state in which the brake roller bites into a wedge shape between the play arm 13 2 and the upper flange 127 is released. In other words, the pressure contact with the upper flange 1 27 of the brake roller is released.
- the take-up drum 1 26 slightly moves in the direction of winding the power cord KD by the mainspring. To rotate. Along with this, the spray roller bites into the wedge shape between the spray arm 132 and the upper flange 127, and the rotation of the winding drum 126 is stopped. Therefore, the power cord KD is kept in the pulled-out state.
- the brake of this brake device # 31 is released by pushing the handle 133 shown in Figs. 2 and 15 downward.
- the handle 13 3 has a handle 13 4, and legs 13 5, 13 5 integrally connected downward at both ends of the handle 13 4. It is formed in a U-shape.
- the handle 133 can be pulled out above the main body case 30 and is used to carry the cleaner body 20 in this state.
- the handle # 33 is held at a position where the handle portion 134 does not protrude from the main body case 30, and is pushed in when the brake is released from this state.
- a tapered plate 130 is provided at the lower end of one leg 135.
- the inclined cam surface 135a of the plate 130 is in contact with the rib 121 of the brake arm 132 from above.
- the play frame 13 2 is rotated counterclockwise around the axis 1 23 a. Due to this rotation, the brake roller is separated from the peripheral surface of the upper flange 127. Therefore, the brake by the brake device 13 1 is released.
- the case main part 34 is provided with a dust removing device for removing dust attached to the filter 80, for example, a vibration applying device 149.
- This vibration imparting device 149 has a lattice plate 116 and a large-diameter gear 150 disposed between the lattice plate 116 and the filter 80.
- the lattice plate 1 16 is provided on the back side of the front wall 113 of the case main part 34.
- the front wall 113 has an opening facing the lattice plate 116.
- the gear 150 is arranged inside the opening.
- the gear 150 has a boss 151, a plurality of arms 152, an annular gear portion 153, an annular support portion 154, and a projection 157.
- the boss 15 ⁇ located at the center of the gear 150 is rotatably supported on a support shaft 15a of the lattice plate 1 16.
- Each arm # 52 is provided radially around the boss 151, and is provided integrally with the boss 15I.
- the annular gear section 15 3 is provided integrally with each of the arms 15 2 over the arms 15 2.
- the annular support portion 154 is located between the boss 151 and the annular gear portion 153, and is provided integrally with each of the arms 152.
- the protrusion 157 is provided at one of the intersections between the annular support portion 154 and each of the arms 152.
- the projection 157 can be elastically deformed, and the tip of the projection 157 is shallowly inserted into one back surface groove 82 b of the filter element 82.
- This rotating force transmission mechanism 15 8 is composed of a rotating shaft 15 9 and the first pinion
- the lattice plate 1 16 13 a and a shaft hole 11 b communicating therewith are provided.
- the rotating shaft 159 is provided to penetrate the cylindrical portion 113a and the shaft insertion hole 113b.
- One end of the rotating shaft 159 protrudes toward the dust cup 50, and the other end protrudes into the main body case 34.
- the first pinion 160 is fixed to one end of the rotating shaft 159.
- the pinion 160 is engaged with the annular gear portion 153 of the gear 150.
- the pinion 160 has a boss 160a that fits into the shaft hole 113b.
- the second pinion 16 ⁇ is rotatably supported by the other end of the rotating shaft 159, and is provided so as not to move in the axial direction of the rotating shaft 159.
- the pinion 16 1 is engaged with the cord reel 1 25 in combination with the drive gear 1 29 of the cord reel 1 25.
- reference numeral 1559a denotes a guide convex portion, and the guide convex portion It is formed to extend.
- the rotational force transmitting device 158 has a cylindrical driven rotary member 162, which is fitted to the portion of the rotary shaft 159 provided with the guide convex portion 159a. It is arranged between the first pinion 160 and the lattice plate 116. As a result, the driven rotary member 162 is supported by the rotary shaft 159 so as to be movable in the axial direction and relatively unrotatable.
- the torque transmitting device 158 has a one-way clutch 163.
- the main part of the clutch 163 is provided at the opposing portion of the first pinion 161 and the receiving rotary member 162.
- One Way Kula The switch 1663 is provided with ratchet pawls 164, 165 and a coil spring 1666 which engage with each other.
- Ratchet claw 16 4 is provided on pinion 16 1.
- the ratchet claw 1 65 is provided on the driven rotary member 62.
- Coil spring 1666 presses ratchet pawl 165 against ratchet pawl 164.
- the ratchet pawls 16 4 and 16 5 are relatively rotated.
- the driven rotor 162 can be moved on the rotating shaft 1559 in a direction away from the pinion 161, against the spring force of the coil spring 1666.
- ratchet claw 164 gets over ratchet claw 165.
- the ratchet pawls 1664 and 165 are locked to each other.
- the pinion 16 1 and the driven rotating body 16 2 are rotated by the body.
- the rotational force transmitting device 158 has an annular seal member 167 that seals between the shaft hole 113 b and the rotating shaft 159.
- the seal member 167 is fitted on the outer periphery of the rotating shaft 159 and is brought into contact with the lattice plate 116.
- a coil spring 166 is interposed between the seal member 167 and the driven rotor 162.
- the coil spring 166 presses the seal member 167 against the lattice plate 116. At the same time, the coil spring 16 6 pushes the ratchet claw 16 5 of the driven rotor 16 2 into the pinion 1. 3 003365
- Reference numerals 1 15 in FIGS. 14 and 15 indicate a cylinder provided on the lattice plate 1 16.
- the air inlet 33A of the electric blower 33 is fitted into the cylindrical portion 115 via an annular rubber-like elastic member (not shown).
- the dust cup 50 is placed on the placing portion 35 of the main body case 30. Thereafter, the lid 40 is closed as shown in FIGS. 2 and 3, and then the dust suction hose 21 of the intake passage body 25 is connected to the connection port 43 of the lid 40 as shown in FIG. Connecting.
- the suction port 21 is already connected to the dust suction hose 21 via the extension pipe 23.
- the operation switch 22B of the hand operation section 22A is operated to drive the electric blower 33.
- the negative pressure space 56 of the dust cup 50 communicating with the intake port 33A of the electric blower 33 has a negative pressure.
- This negative pressure is caused by the opening 64 of the air path forming body 62 and the straight air path 62 a, the vent hole 52 of the container case 53, the connection port 43 of the lid 40, the dust suction hose 21 and It acts on the extension pipe 23 and the suction port body 24 sequentially. As a result, dust on the surface to be cleaned is sucked from the suction port body 24 together with air.
- the sucked dust and air pass through the intake passage body 25 and the connection port 4 Aspirated to 3.
- the dust and air sucked into the connection port 43 pass through the vent hole 52 of the dust cup 50 and are sucked into the straight air passage 62 a of the first dust separation part 61.
- the air that has not been sucked into the negative pressure space 56 from the opening 64 is introduced into the first dust reservoir 55 through the guide 63 in the same manner as the heavy dust.
- the air introduced into the first dust reservoir 55 becomes a downward swirling flow that rotates along the inner peripheral surface of the first dust reservoir 55 by the guide wall 55G.
- the dust introduced into the first dust reservoir 55 is accumulated while being compressed along the lower inner peripheral surface of the first dust reservoir 55 by the swirling flow.
- the air that swirls through the first dust reservoir 55 rises and reverses at the center of the first dust reservoir 55, passes through the ventilation opening 59 of the ceiling wall 58, and is sucked into the negative pressure space 56.
- the light dust that has reached the inside of the air path 62 a of the air path forming body 62 has a small inertial force to go straight. Therefore, the light dust flows into the negative pressure space 56 on the air passing through the filter F 2 of the opening 6 4 by the negative pressure of the intake air of the electric blower 33 without going straight in the straight air path 6 2 a. .
- light dust is attached to the inner peripheral surface of the filter F2.
- the diameter of the tubular airflow path forming body 62 gradually decreases from the inlet 62A on the upstream side to the outlet 62B on the downstream side.
- the air that travels straight through the air passage 62a uniformly hits the entire surface of the filter F2 and flows while being leaned toward the center of the straight air passage 62a. For this reason, it is easy for the air traveling straight through the wind path 62a to remove dust adhering to the inner surface of the filter F2.
- the dust peeled off from the filter F2 is introduced into the first dust reservoir 55 through the guide 63 in the same manner as the heavy dust, and is centrifuged from the air in the dust reservoir 55. Stored.
- the dust and the air are separated from each other by using the inertia force of the heavy dust such as coarse dust to go straight.
- This separation action is called straight-flow inertia separation action.
- windage loss is smaller than when dust and air are centrifuged while swirling the dust-containing air and reversing the traveling direction of the swirling flow.
- the ventilation hole 52, the straight air path 62a, the upper part of the opening 51 of the container case body 53, and the intake port 33a of the electric blower 33 are almost at the same height position and sequentially side by side are arranged £
- the flow of air will be sucked into the electric blower 3 3 through the filter F 2 and the negative pressure space 5 6 air passage 6 2 a is in FIG arrow Q
- connection port 43 of the lid 40 and the cylindrical air path forming body 62 are also arranged in a straight line.
- the direction in which the dust-containing air is introduced into the ventilation hole 52 of the container case body 53 and the direction in which the air path forming body 62 extends are linear. Even in this configuration, windage loss can be reduced.
- the air in the negative pressure space 56 passes through the filter 80 and is electrically blown by T. Suctioned by machine 3 3. Therefore, fine dust passing through the filters F 1 and F 2 can be filtered by the filter element 82 of the filter 80. The air thus cleaned is sucked into the electric blower 33.
- a first dust separation unit 61 is disposed upstream of the filter 80.
- the first dust separation section 61 separates coarse dust and the like as described above. As a result, large dust to be removed in the first dust separation section 61 does not adhere to the filter 80. Therefore, it is possible to prevent the filter 80 from becoming apparently clogged at an early stage.
- the filter 80 extends in the direction in which the negative pressure space 56 containing the first dust separation portion 61 and the dust reservoir portion 55 are arranged, and the negative pressure space 56 and the dust reservoir portion 55 are connected to each other. Facing.
- the filter 80 disposed between the second dust separation unit 61 and the electric blower 33 is not only the projection area of the first dust separation unit 61 but also the projection of the dust storage unit 55. It is also arranged for the area. Therefore, the size of the filter 80 can be increased without being limited by the size of the dust reservoir 55. Nevertheless, the container case body 53 and, consequently, the vacuum cleaner body 20 do not need to be enlarged.
- the filter 80 serving as the second dust separating section filters dust with the entire large filter element 82. Thereby, windage loss in the filter 80 can be reduced, and formation of turbulence can be suppressed. Therefore, the time when the filter element 82 becomes clogged and the windage becomes excessively late. For this reason, the filter element 82 was washed with water and regenerated, or replaced with a new filter 80, etc.
- the maintenance interval required by the user, that is, the continuous usable period of the filter 80 can be lengthened.
- the force of sucking dust-containing air into the connection port 43 of the cleaner main body 20 does not easily decrease. Accordingly, a decrease in the flow velocity of the air passing through the separation air passage 62 a of the first dust separation portion 61 is suppressed. For this reason, early reduction of the separation action in the first dust separation section 61 can be suppressed. In other words, it is possible to suppress early deterioration of the cleaning performance.
- Filter 80 is sloped. For this reason, a part of the main flow Q that has blown, for example, to the upper part (one end) of the filter element 82 is guided toward the lower part of the element 82 along the inclination of the filter element 82.
- the filter element 82 has a pleated shape, and is used with its fold extending vertically. This makes it possible to easily spread the wind to the lower region of the filter element 82 by using the many surface grooves 82 a extending vertically in the filter element 82 as guides. is there. For this reason, it is preferable in that fine dust and the like can be filtered using substantially the entirety of the filter element 82 while maintaining the main flow Q.
- the filter 80 in which the pleats are used in an upright position, mainly adheres dust on the upstream surface. Most of the dust attached to the upstream surface falls under its own weight as the operation of the electric blower 33 is stopped.
- a surface treatment layer 82C is provided on the upstream surface of the filter element 82.
- This processing layer 8 2 C provides a filter element 8 2 C The dust adhering to the surface of the filter medium is easily peeled off, and catching on the filter medium surface can be suppressed. For this reason, dust on the upstream surface of the filter element 82 is more likely to fall smoothly than when dust is directly attached to the surface of the filter element 82.
- the fallen dust passes through the cutout portion 84b of the lower frame portion 81a of the filter frame 81. This dust slides down the bevel 85 below the filter element 82. As a result, the dust dropped from the filter 80 is discharged to below the lower frame portion 81a, and is stored in the second dust storage portion 72.
- the lower frame portion 81a of the filter frame 81 supporting the lower end of the filter element 82 does not block the dust falling from the filter element 82. This can prevent dust from growing upward in the surface groove 82 b and clogging the lower side of the filter element 82.
- the continuous usable period of the filter 80 can be extended. Moreover, there is no danger that dust will accumulate and solidify under the surface groove 82b of the filter element 82. Therefore, even when the filter element 82 is washed with water for regeneration, it is possible to reduce the labor for regeneration.
- the lower frame 8 1 a of the filter frame 8 1 does not block the dust falling from the surface of the filter element 8 2, and the falling dust is retained in the lower second dust reservoir 7 2. Can be discharged to Therefore, when the upper part of the filter element 82 is clogged, a substantial filtration part can be secured at the lower part of the filter element 82. In this regard, too, the continuous usable period of the filter 80 is extended. it can.
- the element support 84 that supports the lower end of the filter element 82 is covered with a slanted portion 85 of the lower frame portion 81a from below. Therefore, in handling the filter 80 for maintenance or the like, the slanted portion 85 can prevent the lower end of the filter element 82 from hitting anything. Therefore, it is highly reliable to maintain the predetermined connection between the filter element 82 and the element support 84.
- the gap G is made narrow enough to allow the passage of dust falling from the surface of the filter element 82.
- the upper end opening is covered with a lower frame portion 81a of the filter frame 81, leaving a part thereof.
- the energy of the mainstream Q is large and its flow route is clear.
- the flow position of the air passing from the opening 64 through the negative pressure space 56 through the filter element 80 is roughly determined. Accordingly, the occurrence of turbulence in the negative pressure space 56 can be reduced, so that the influence of turbulence on the second dust reservoir 72 can be further suppressed.
- the vibration applying device 149 vibrates the filter element 82 in conjunction therewith. Thereby, fine dust adhering to the filter element 82 can be forcibly dropped.
- the gear 150 is rotated via the torque transmitting mechanism 158 in conjunction with the rotation of the take-up drum 126.
- the projections 157 of the gear 150 move while passing over the pleats of the pleated filter element 82.
- the projection 157 collides with the next pleat when it passes over the pleat of the filter element 82, and vibrates the filter element 82.
- fine dust trapped in the filter element 82 is dropped.
- the fallen dust is stored in the second dust reservoir 72 as described above.
- the winding drum 126 rotates. Therefore, as in the case of winding the power cord KD, the filter element 82 is vibrated by the vibration imparting device 149, and automatic dust removal is performed.
- FIG. 20 shows a second embodiment of the present invention.
- This second embodiment is basically the same as the first embodiment. Therefore, the same components as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof is omitted. Since the second embodiment differs from the first embodiment in the configuration of the second dust reservoir 72, this point will be described below.
- the second dust reservoir portion 72 is provided at a position deviated from directly below the filter 80. For example, most of the second dust reservoir portion 72 is provided so as to enter the first dust reservoir portion 55. In other words, the position of the second dust reservoir 72 deviates from the flow (mainstream Q) of the air sucked into the electric blower 33 through the filter 80 through the negative pressure space 56 from the first dust separator 6. It is provided in.
- the configuration of the second embodiment other than the points described above includes the configuration of the first embodiment including the configuration not shown in FIG. It is the same as the embodiment.
- FIG. 21 and FIG. 22 show a third embodiment of the present invention.
- This third embodiment is basically the same as the first embodiment. Therefore, the same components as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof is omitted.
- the third embodiment differs from the first embodiment in the configuration of the lower frame portion 81a of the filter 80 and the dust discharging means 83, and therefore, this point will be described below.
- the lower frame portion 81 a is formed by alternately providing closing portions 84 a and cutout portions (dust passing portions) 84 b.
- the lower frame portion 81a is not provided with the oblique portion employed in the first embodiment. For this reason, in a state where the filter 80 is fitted in the opening 51, the lower frame portion 81a is provided so as to be directly supported by the second dust reservoir portion 72 as shown in FIG. In this state, the closing portion 84a and the notch portion 84b face the second dust reservoir 72.
- the configuration of the third embodiment other than the points described above is the same as the second embodiment, including the configuration not shown in FIGS. 21 and 22.
- the present invention is effective in the field of electric vacuum cleaners that are useful for cleaning a surface to be cleaned by sucking dust on the surface to be cleaned together with air.
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Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002500156A CA2500156C (en) | 2002-10-31 | 2003-03-19 | Vacuum cleaner |
EP03710442A EP1554965B1 (en) | 2002-10-31 | 2003-03-19 | Electric cleaner |
US11/091,920 US7198656B2 (en) | 2002-10-31 | 2005-03-28 | Vacuum cleaner |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002317919A JP3488877B1 (ja) | 2002-10-31 | 2002-10-31 | 電気掃除機 |
JP2002-317919 | 2002-10-31 | ||
JP2002-348564 | 2002-11-29 | ||
JP2002348564A JP3488878B1 (ja) | 2002-11-29 | 2002-11-29 | 電気掃除機 |
JP2003009103A JP3490081B1 (ja) | 2003-01-17 | 2003-01-17 | 電気掃除機 |
JP2003-9103 | 2003-01-17 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/091,920 Continuation US7198656B2 (en) | 2002-10-31 | 2005-03-28 | Vacuum cleaner |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004039232A1 true WO2004039232A1 (ja) | 2004-05-13 |
Family
ID=32233991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/003365 WO2004039232A1 (ja) | 2002-10-31 | 2003-03-19 | 電気掃除機 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7198656B2 (ja) |
EP (1) | EP1554965B1 (ja) |
KR (1) | KR100633355B1 (ja) |
CN (1) | CN100525694C (ja) |
CA (1) | CA2500156C (ja) |
WO (1) | WO2004039232A1 (ja) |
Cited By (1)
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US7496988B2 (en) | 2002-09-25 | 2009-03-03 | Toshiba Tec Kabushiki Kaisha | Electric vacuum cleaner provided with a dust separation section for separating sucked dust and dust collecting section for collecting the dust |
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JP3999791B2 (ja) * | 2005-07-21 | 2007-10-31 | 株式会社東芝 | 電気掃除機 |
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US20210401246A1 (en) | 2016-04-11 | 2021-12-30 | Omachron Intellectual Property Inc. | Surface cleaning apparatus |
JP4251655B2 (ja) * | 2007-01-12 | 2009-04-08 | 株式会社東芝 | 電気掃除機 |
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Also Published As
Publication number | Publication date |
---|---|
US7198656B2 (en) | 2007-04-03 |
CA2500156C (en) | 2009-12-29 |
CN100525694C (zh) | 2009-08-12 |
EP1554965A1 (en) | 2005-07-20 |
CN1684621A (zh) | 2005-10-19 |
US20050166560A1 (en) | 2005-08-04 |
CA2500156A1 (en) | 2004-05-13 |
EP1554965B1 (en) | 2011-08-31 |
KR100633355B1 (ko) | 2006-10-16 |
KR20050049511A (ko) | 2005-05-25 |
EP1554965A4 (en) | 2007-05-02 |
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