WO2010134577A1 - 電気掃除機 - Google Patents
電気掃除機 Download PDFInfo
- Publication number
- WO2010134577A1 WO2010134577A1 PCT/JP2010/058554 JP2010058554W WO2010134577A1 WO 2010134577 A1 WO2010134577 A1 WO 2010134577A1 JP 2010058554 W JP2010058554 W JP 2010058554W WO 2010134577 A1 WO2010134577 A1 WO 2010134577A1
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- WO
- WIPO (PCT)
- Prior art keywords
- air
- suction pipe
- vacuum cleaner
- exhaust
- dust
- Prior art date
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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
- A47L9/24—Hoses or pipes; Hose or pipe couplings
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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
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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
- A47L5/14—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum cleaning by blowing-off, also combined with suction cleaning
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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
- A47L5/24—Hand-supported suction cleaners
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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
- A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
Definitions
- the present invention relates to a vacuum cleaner that can be switched between a dust collection mode and a ventilation mode.
- Patent Document 1 discloses a vacuum cleaner having two types of operation modes for dust collection and ventilation.
- This type of vacuum cleaner has a cylindrical main body. The interior of the main body is partitioned by a partition into a dust collection chamber having a filter and an exhaust chamber containing an electric blower. The dust collection chamber communicates with the exhaust chamber through a communication port opened in the partition wall.
- the lid covering the upper end of the cleaner body has an intake port, an exhaust port and a hose connection part.
- the intake port leads to the filter.
- the exhaust port leads to the exhaust chamber.
- the hose connection portion is rotatably supported by the lid so as to selectively match either the intake port or the exhaust port.
- a dust suction hose is fixed to the hose connection via a hose cover.
- the vacuum cleaner When using the vacuum cleaner in the blow mode, rotate the hose connection so that the hose connection matches the exhaust port. As a result, the intake port is opened to the atmosphere and the hose communicates with the exhaust chamber through the exhaust port.
- the electric blower starts operation, the air sucked from the intake port passes through the filter and flows into the exhaust chamber.
- the air flowing into the exhaust chamber is guided from the exhaust port of the lid through the hose connection portion to the hose and ejected from the tip of the hose. Therefore, the vacuum cleaner can be used as a blower.
- Patent Document 1 the air sucked into the main body always passes through the filter regardless of whether the vacuum cleaner is operated in the dust collection mode or the air blowing mode.
- the ventilation resistance of the filter changes according to the amount of dust trapped by the filter. Therefore, when the vacuum cleaner is used in the air blowing mode, the air volume of the air for blowing led from the exhaust port through the hose connection portion to the hose is affected by the amount of dust trapped by the filter. Therefore, the air volume of the air for blowing cannot always be kept constant.
- An electric vacuum cleaner is provided in a vacuum cleaner body having an exhaust port, an electric blower that sucks air in the vacuum cleaner body, and the operation of the electric blower.
- a dust collecting part for collecting dust contained in the air sucked into the vacuum cleaner body.
- the intake air switching member includes a first position where dust sucked into the vacuum cleaner body as the electric blower is operated when the vacuum cleaner is in the dust collection mode, and the vacuum cleaner blows air. It is possible to move between the second position where the dust collecting operation is interrupted in the mode.
- the exhaust switching member includes a first exhaust position that guides exhaust discharged from the electric blower to the exhaust port in the dust collection mode, and air for blowing exhaust discharged from the electric blower in the blow mode. As described above, it is possible to move between the second exhaust position leading out of the cleaner body. Furthermore, the vacuum cleaner shuts off the introduction of outside air into the cleaner body during the dust collection mode, and introduces outside air into the cleaner body bypassing the dust collection unit during the air blowing mode. Outside air introduction means is provided.
- the vacuum cleaner when used in the blower mode, the outside air is sucked into the cleaner body bypassing the dust collecting portion. For this reason, the air volume of the air blown out of the main body of the cleaner is not affected by the amount of dust trapped in the dust collecting section, and the air volume of the air for blowing can be kept constant.
- FIG. 1 is a perspective view of the electric vacuum cleaner according to the first embodiment of the present invention.
- FIG. 2 is a perspective view of the vacuum cleaner body of the electric vacuum cleaner of FIG. 1 as viewed from the front.
- FIG. 3 is a perspective view of the vacuum cleaner body of the electric vacuum cleaner of FIG.
- FIG. 4 is a side view showing a state where the suction pipe supported by the cleaner body is rotated to the first position.
- FIG. 5 is a side view showing a state in which the suction pipe supported by the cleaner body is rotated to the second position.
- FIG. 6 is an exploded perspective view of the cleaner body.
- FIG. 7 is a perspective view showing an internal structure of the cleaner body when the suction pipe is rotated to the first position.
- FIG. 8 is a cross-sectional view showing the internal structure of the cleaner body when the suction pipe is rotated to the first position.
- FIG. 9 is a perspective view showing a part of the positional relationship between the suction pipe and the outside air introduction air passage when the suction pipe is rotated to the first position.
- FIG. 10 is a perspective view showing an internal structure of the cleaner body when the suction pipe is rotated to the second position.
- FIG. 11 is a cross-sectional view showing the internal structure of the cleaner body when the suction pipe is rotated to the second position.
- FIG. 12 is a perspective view showing a part of the positional relationship between the suction pipe and the outside air introduction air passage when the suction pipe is rotated to the second position.
- FIG. 13 is a side view showing an internal structure of the first case element constituting the cleaner body.
- FIG. 14 is a perspective view showing a positional relationship between the first ventilation passage of the suction pipe and the first case element when the suction pipe is rotated to the first position.
- FIG. 15 is a perspective view of the suction pipe as viewed from the front.
- FIG. 16 is a perspective view of the suction pipe as seen from the rear.
- FIG. 17 is a perspective view of a pipe body included in the suction pipe.
- FIG. 18 is a sectional view conceptually showing a state where the vacuum cleaner is switched to the dust collection mode in the second embodiment of the present invention.
- FIG. 19 is a cross-sectional view conceptually showing a state in which the vacuum cleaner is switched to the air blowing mode in the second embodiment of the present invention.
- FIG. 1 discloses a hand-held vacuum cleaner 1.
- the electric vacuum cleaner 1 includes a vacuum cleaner body 2 and a suction unit 3.
- the power cord 7 is drawn out of the cleaner body 2.
- a power plug 8 is attached to the tip of the power cord 7.
- the suction unit 3 includes an extension pipe 4 and a suction head 5.
- the extension tube 4 includes an outer tube 4a and an inner tube 4b.
- the inner tube 4b is combined with the outer tube 4a so as to be expandable and contractable in the axial direction.
- the rear end of the extension pipe 4 is detachably connected to a suction pipe 41 included in the cleaner body 2.
- the suction head 5 includes a head portion 5a and a connecting pipe 5b.
- the head portion 5a is for a floor suitable for cleaning, for example, an indoor floor surface, and has an elongated shape in the left-right direction.
- the floor surface is an example of a surface to be cleaned.
- the head portion 5a includes a dust suction opening that opens toward the floor surface.
- the connecting pipe 5b protrudes from the central portion along the longitudinal direction of the head portion 5a toward the rear of the head portion 5a.
- the rear end portion of the connection pipe 5b is detachably connected to the front end of the inner pipe 4b that is the tip of the extension pipe 4.
- the connection pipe 5b of the suction head 5 can be directly detachably connected to the suction pipe 41 of the cleaner body 2.
- the cleaner body 2 includes an outer case 11 made of synthetic resin.
- the outer case 11 is divided into a first case element 12a and a second case element 12b.
- the first case element 12a and the second case element 12b are abutted with each other and are coupled via a plurality of screws.
- the outer case 11 has a handle 13 at the top thereof.
- the front portion of the outer case 11 is formed to have a thickness that allows an operator who uses the vacuum cleaner 1 to hold the handle 13 with one hand and to be sandwiched between the thumb and index finger of the other hand. Has been.
- the operator lifts the cleaner body 2 above the floor surface by grasping the handle 13 with one hand, and the extension pipe 4 is connected to the cleaner body.
- the vacuum cleaner 1 can be held in a posture that extends obliquely from 2 toward the floor. Furthermore, at the time of the air blowing operation for blowing off dust on the floor surface, the operator can lift the vacuum cleaner 1 as a whole so that the head portion 5a of the suction head 5 is separated from the floor surface.
- the switch 14 is disposed on the upper surface of the front end portion of the handle 13.
- the switch 14 is operated by pushing the handle 13 with the thumb of the hand holding the handle 13.
- By operating the switch 14 artificially, for example, the strong operation, the weak operation, and the operation stop of the vacuum cleaner 1 can be selected.
- the first case element 12a and the second case element 12b that form the exterior case 11 have the same shape and configuration. For this reason, in the present embodiment, the description will be mainly given of the first case element 12a as a representative, and the second component 12b will be denoted by the same reference numeral, and the description thereof will be omitted.
- the first case element 12a has an upper wall 11a, a partition wall 11b, and a front wall 11c.
- the upper wall 11 a is positioned below the handle 13 and extends in the front-rear direction of the outer case 11.
- a convex portion 11d is formed at the front end portion of the upper wall 11a.
- the convex portion 11d protrudes downward from the front end portion of the upper wall 11a so as to advance to the inside of the first case element 12a.
- the partition wall 11b extends in the front-rear direction of the outer case 11 below the upper wall 11a.
- the upper wall 11 a and the partition wall 11 b form a case storage chamber 16 inside the outer case 11.
- the case storage chamber 16 is opened at the rear end of the exterior case 11.
- the front wall 11 c includes a wall portion curved in an arc shape and a horizontal upper wall portion positioned at the upper end of the wall portion.
- the front wall 11 c forms a support chamber 17 in the exterior case 11.
- the support chamber 17 is positioned on the front side of the outer case 11 with respect to the case storage chamber 16, and has an open end 17 a that is open at the front end of the outer case 11.
- the convex part 11d located at the front end of the upper wall 11a is continuous from the rear of the exterior case 11 to the upper part of the wall part of the front wall 11c.
- the partition wall 11b has an inclined portion 11f.
- the inclined portion 11f is inclined upward so as to approach the convex portion 11d of the upper wall 11a as it advances forward.
- the front end of the inclined portion 11f is continuous from the rear of the outer case 11 to the arc-shaped wall portion of the front wall 11c.
- an introduction port 18 is formed between the convex portion 11d of the upper wall 11a and the front end of the inclined portion 11f of the partition wall 11b.
- the introduction port 18 is located at the boundary between the case storage chamber 16 and the support chamber 17. As a result, the support chamber 17 communicates with the case storage chamber 16 via the introduction port 18.
- the first and second case elements 12 a and 12 b each have a plurality of exhaust slits 19.
- the exhaust slit 19 is an example of an exhaust port and is opened to the case storage chamber 16.
- ribs 11e are formed on the inner surfaces of the first and second case elements 12a and 12b. The rib 11e is located in a region where the exhaust slit 19 is opened, and projects from the inner surfaces of the first and second case elements 12a and 12b into the case storage chamber 16.
- the partition wall 11 b and the front wall 11 c form a blower storage chamber 21 and a ventilation chamber 22 in the exterior case 11.
- the blower storage chamber 21 is located directly below the case storage chamber 16.
- the ventilation chamber 22 is located directly below the support chamber 17. Therefore, the blower storage chamber 21 and the ventilation chamber 22 are arranged in the front-rear direction of the outer case 11.
- the upper end portion of the vent chamber 22 communicates with the support chamber 17 through the inlet 22a.
- An air passage closing portion 22b is located immediately before the inlet 22a.
- the air path closing portion 22b is a wall that partitions the support chamber 17 and the ventilation chamber 22, and is continuous with the front ends of the first and second case elements 12a and 12b.
- a guard plate 23 having air permeability is interposed between the blower storage chamber 21 and the ventilation chamber 22.
- the first and second case elements 12a and 12b have a pair of support portions 24 and 25 that support the guard plate 23, respectively.
- the support portions 24 and 25 also serve as screw receivers into which screws for connecting the first and second case elements 12a and 12b are screwed.
- One support portion 24 is provided so as to be continuous behind the inlet 22a of the ventilation chamber 22.
- the support part 24 has a stopper part 24a.
- the stopper portion 24 a is positioned below the inclined portion 11 f of the partition wall 11 b and protrudes from the support portion 24 toward the rear of the ventilation chamber 22.
- the other support portion 25 is located below the one support portion 24 and is separated from the support portion 24.
- each of the first and second case elements 12a and 12b has a boss 26 for bearing.
- the boss 26 is adjacent to the inclined portion 11 f of the partition wall 11 b in the blower storage chamber 21 and is positioned behind the one support portion 24.
- each of the first and second case elements 12a and 12b has a bulging portion 12c projecting in an arc shape toward the side.
- the bulging portion 12c of the first case element 12a and the bulging portion 12c of the second case element 12b face each other in the width direction of the exterior case 11.
- a portion between one support portion 24 and the boss 26 is positioned at an end portion of the bulging portion 12c.
- a ventilation groove 36 is formed in the inclined portion 11f of the partition wall 11b.
- the ventilation groove 36 forms a ventilation hole in the exterior case 11 when the first case element 12a and the second case element 12b are joined.
- the vent hole is located between the case storage chamber 16 and the blower storage chamber 21. Therefore, the blower storage chamber 21 communicates with the case storage chamber 16 through the vent hole.
- the electric blower 28 is accommodated in the blower storage chamber 21 of the outer case 11.
- the electric blower 28 includes a motor module 28a and a fan module 28b.
- the fan module 28b has an air inlet (not shown) that sucks air into the center of the front surface thereof.
- the intake port is covered with a guard plate 23.
- the outer peripheral surface of the fan module 28b is supported by the inner surface of the bulging portion 12c of the first and second case elements 12a and 12b and the stopper portion 24a. Further, a ventilation space is secured between the inner surface of the bulging portion 12c of the first and second case elements 12a and 12b and the outer peripheral surface of the fan module 28b.
- the air in the ventilation chamber 22 is sucked into the fan module 28b from the intake port.
- the air sucked into the fan module 28b passes through the inside of the motor module 28a and is discharged from the rear end of the motor module 28a to the blower storage chamber 21.
- Air (exhaust gas) discharged to the blower storage chamber 21 can flow out from between the stopper portion 24a and the boss 26 to the case storage chamber 16 through the ventilation groove 36 of the partition wall 11b.
- the dust collection case 31 is stored in the case storage chamber 16.
- the dust collection case 31 is an example of a dust collection unit, and includes a case body 32 and a case lid 33.
- the dust collection case 31 has a shape that enters the case storage chamber 16.
- the dust collection case 31 is removably inserted into the case storage chamber 16 from the rear end of the outer case 11.
- the case body 32 has a dust inlet 32a and a dust outlet 32b.
- the dust inlet 32 a is opened at the front end of the case body 32.
- the dust inlet 32 a is inserted into the introduction port 18 in the outer case 11 when the dust collection case 31 is stored in the case storage chamber 16.
- the dust outlet 32 b is opened at the rear end of the case body 32.
- the case lid 33 is detachably fitted to the rear end of the case main body 32 to block the dust outlet 32b. By removing the case lid 33 from the rear end of the case body 32, dust accumulated in the case body 32 can be discarded.
- the exterior case 11 of the cleaner body 2 is equipped with a holding means 34 for holding the dust collection case 31 in the case storage chamber 16.
- the holding means 34 includes an operation lever 34a and a lock member 34b.
- the operation lever 34 a is rotatably supported at the rear end of the handle 13 and is exposed to the outside of the handle 13.
- the lock member 34b is supported at the rear end of the handle 13 so as to be interlocked with the operation lever 34a.
- the lock member 34b is slidable between a lock position protruding into the case storage chamber 16 and a lock release position released from the case storage chamber 16, and is always urged toward the lock position by a spring (not shown). Yes.
- the lower end of the lock member 34 b is elastically engaged with a recess 32 c provided in the case body 32 when the dust collection case 31 is properly inserted into the case storage chamber 16.
- the dust collection case 31 is held in the case storage chamber 16, and the dust inlet 32 a of the dust collection case 31 is maintained in a state of being inserted into the introduction port 18.
- the operation lever 34a can be pressed with a fingertip from behind the outer case 11.
- the lock member 34b is slid from the lock position toward the lock release position against the urging force of the spring. Therefore, the lower end of the lock member 34 b is detached from the recess 32 c of the case body 32. As a result, the dust collection case 31 can be taken out from the case storage chamber 16.
- the cleaner body 2 may be tilted so that the case lid 33 of the dust collection case 31 faces downward. By tilting the vacuum cleaner body 2, it is possible to take out the dust collection case 31 using the weight of the dust collection case 31.
- a flat exhaust switching member 35 is supported inside the outer case 11.
- the exhaust gas switching member 35 has a pair of shaft portions 35a at one end.
- the shaft portion 35a is arranged coaxially.
- One shaft portion 35a is rotatably fitted to the boss 26 of the first case element 12a.
- the other shaft portion 35a is rotatably fitted to the boss 26 of the second case element 12b.
- the air (exhaust gas) discharged from the electric blower 28 to the blower storage chamber 21 passes through the gap G between the exhaust switching member 35 and the inclined portion 11f of the partition wall 11b. From here, the air flows into the case storage chamber 16 through the ventilation groove 36.
- the air discharged from the electric blower 28 to the blower storage chamber 21 passes between the stopper portion 24a and the boss 26 and reaches the lower side of the exhaust switching member 35, but is blocked by the exhaust switching member 35 and the ventilation groove. You cannot pass through 36. Therefore, the air in the blower storage chamber 21 does not flow into the case storage chamber 16.
- the suction pipe 41 included in the cleaner body 2 is an example of an element constituting an intake air switching member. As shown in FIGS. 15 to 17, the suction pipe 41 includes a pipe body 42 and a pair of side covers 43 a and 43 b.
- the tubular body 42 includes a front half 42a and a rear half 42b.
- the front half 42a has a straight cylindrical shape, and has a connection port 42c to which the extension pipe 4 or the connection pipe 5b of the suction head 5 is detachably fitted at the front end thereof.
- Each of the side covers 43a and 43b has a cylindrical shape, and is abutted against each other so as to sandwich the rear half 42b of the tubular body 42 from the left and right directions.
- the first ventilation passage 44 and the second ventilation passage 45 are formed in the rear half 42 b of the tubular body 42.
- the first ventilation passage 44 is located behind the connection port 42c of the front half 42a and faces the connection port 42c.
- the rear end of the first ventilation passage 44 protrudes slightly behind the suction pipe 41 through the rear end portions of the side covers 43a and 43b.
- the second ventilation passage 45 is branched from the first ventilation passage 44 and extends below the first ventilation passage 44.
- the lower end of the second ventilation passage 45 penetrates the lower ends of the side covers 43 a and 43 b and slightly protrudes below the suction pipe 41.
- the rear half portion 42 b of the tube body 42 has a wall portion 46 provided between the first ventilation passage 44 and the second ventilation passage 45.
- the wall portion 46 penetrates the rear end portions of the side covers 43 a and 43 b and slightly protrudes behind the suction pipe 41.
- the protruding end of the wall 46 is curved in an arc shape along the outer peripheral surface of the side covers 43a and 43b.
- the suction pipe 41 has a net filter 47.
- the net filter 47 is located between the first ventilation passage 44 and the second ventilation passage 45. In other words, the net filter 47 is provided at the branch end of the second ventilation passage 45 opened to the first ventilation passage 44.
- the wall portion 46 has an upper surface exposed to the first ventilation passage 44.
- the rear part of the net filter 47 is overlaid on the upper surface of the wall part 46. Further, the upper surface of the wall portion 46 and the net filter 47 are inclined upward as they proceed toward the rear end of the first ventilation passage 44, and face the connection port 42 c at the front end of the suction pipe 41.
- the suction pipe 41 is supported by the outer case 11. Specifically, the side covers 43 a and 43 b of the suction pipe 41 are rotatably fitted in the support chamber 17 of the outer case 11. Thus, the side covers 43a and 43b are slidably sandwiched between the first case element 12a and the second case element 12b, and the outer peripheral surfaces of the side covers 43a and 43b are the first and second case elements.
- the case elements 12a and 12b are slidably in contact with the front walls 11c.
- the front half 42a of the pipe body 42 of the suction pipe 41 projects from the opening end 17a of the support chamber 17 to the front of the outer case 11 so that the extension pipe 4 or the connection pipe 5b of the suction head 5 can be connected.
- the suction pipe 41 is provided between the first position for collecting dust and the second position for blowing air between the first position for dust collection and the second position for blowing air with the contact portion between the outer peripheral surface of the side covers 43a and 43b and the front wall 11c as a guide. It can be rotated in the direction.
- FIG. 7 and 8 show a state where the suction pipe 41 is rotated to the first position.
- the rear end of the first ventilation passage 44 of the suction pipe 41 matches the introduction port 18 inside the outer case 11, and enters the dust inlet 32 a of the dust collection case 31 inserted into the introduction port 18.
- the lower end of the second ventilation passage 45 of the suction pipe 41 matches the inlet 22 a inside the outer case 11 and communicates with the ventilation chamber 22.
- FIGS. 10 and 11 show a state in which the suction pipe 41 is rotated to the second position.
- the rear end of the first ventilation passage 44 of the suction pipe 41 is detached from the introduction port 18 and is blocked by the convex portion 11d.
- the wall 46 of the rear half 42 b of the suction pipe 41 advances to the opening end of the introduction port 18 to close the introduction port 18.
- the lower end of the second ventilation passage 45 of the suction pipe 41 is disengaged from the inlet 22a, and the communication between the second ventilation passage 44 and the ventilation chamber 22 is blocked.
- the cleaner body 2 is provided with outside air introduction means 38.
- the outside air introduction means 38 includes an outside air introduction air passage 48 and the air passage closing portion 22b.
- the outside air introduction air passage 48 is provided in the suction pipe 41.
- the outside air introduction air passage 48 is defined by a gap generated between the rear half portion 42b of the tubular body 42 and the side covers 43a and 43b.
- the outside air introduction air passage 48 has a pair of air passage inlets 48a and air passage outlets 48b.
- the air passage inlet 48a is formed on the upper surface of each side cover 43a, 43b, and is separated from each other in the left-right direction of the suction pipe 41 so as to sandwich the pipe body 42 therebetween.
- the air passage outlet 48 b is formed on the lower surface of the side covers 43 a and 43 b and is located immediately before the lower end of the second ventilation passage 45.
- the air passage outlet 48b has an elongated opening shape extending in the left-right direction across the side covers 43a, 43b.
- the air passage inlet 48 a of the outside air introduction air passage 48 is disengaged from the opening end 17 a of the support chamber 17, and And the second case elements 12a and 12b.
- the air passage outlet 48b of the outside air introduction air passage 48 matches the air passage closing portion 22b of the exterior case 11 and is closed by the air passage closing portion 22b. Therefore, the outside air introduction air passage 48 is kept in a state where communication between the outside of the cleaner body 2 and the ventilation chamber 22 is blocked.
- the air passage inlet 48 a of the outside air introduction air passage 48 faces the opening end 17 a of the support chamber 17. Yes.
- the air passage outlet 48 b of the outside air introduction air passage 48 is disengaged from the air passage closing portion 22 b of the outer case 11 and coincides with the inlet 22 a of the ventilation chamber 22. Therefore, the ventilation chamber 22 is maintained in a state where it is communicated with the outside of the cleaner body 2 through the outside air introduction air passage 48.
- the side covers 43a and 43b of the suction pipe 41 are located immediately before the exhaust gas switching member 35.
- An engaging portion 41a is formed on the rear end portions of the side covers 43a and 43b.
- the engaging portion 41 a is defined by a step generated between the lower end of the wall portion 46 and the lower end of the second ventilation passage 45.
- the engaging portion 41a When the suction pipe 41 is rotated from the first position to the second position, the engaging portion 41a is displaced upward. As a result, the inner surface of the engaging portion 41a is hooked on the tip of the exhaust gas switching member 35, and the exhaust gas switching member 35 rotates from the first exhaust position toward the second exhaust position. Conversely, when the suction pipe 41 is rotated from the second position to the first position, the engaging portion 41a is displaced downward. Therefore, the tip of the exhaust gas switching member 35 is pushed down, and the exhaust gas switching member 35 is rotated from the second exhaust position to the first exhaust position.
- the exhaust gas switching member 35 is rotated to either the first exhaust position or the second exhaust position following the rotation of the suction pipe 41.
- the cleaner body 2 is equipped with a lock means 51 for locking the suction pipe 41 in the first position and the second position.
- the locking means 51 includes a pair of push buttons 54 and a pair of coil springs 55.
- the push buttons 54 are common parts having the same configuration.
- One push button 54 is interposed between the side wall 60 a of the first case element 12 a constituting the support chamber 17 and the side surface of one side cover 43 a of the suction pipe 41.
- the other push button 54 is interposed between the side wall 60 b of the second case element 12 b constituting the support chamber 17 and the side surface of the other side cover 43 b of the suction pipe 41.
- Each push button 54 includes a disk-shaped button base 54a and a pressing portion 54b protruding from the center of the button base 54a.
- a pair of engaging projections 54c are formed on the outer periphery of the button base 54a.
- the engaging convex portion 54c is separated by 180 ° in the circumferential direction of the button base 54a and protrudes in the radial direction of the button base 54a.
- Each engagement protrusion 54c has an engagement groove 54d.
- the pressing portion 54b is inserted through a circular through hole 56 opened in the side walls 60a and 60b of the first and second case elements 12a and 12b, and is exposed outside the outer case 11.
- the side covers 43a and 43b of the suction pipe 41 are provided with recesses 59 into which the button bases 54a are inserted in the respective side surfaces.
- a pair of engaging portions 59 a is formed on the outer peripheral portion of the recess 59.
- the engaging part 59a is hooked on the engaging convex part 54c of the button base 54a. Therefore, the button base 54 a of the push button 54 rotates together with the suction pipe 41.
- the coil spring 55 is interposed between a spring receiver 58 formed on the bottom of the recess 59 and a pressing portion 54 b of the push button 54.
- the coil spring 55 elastically biases the push button 54 in a direction away from the side covers 43a and 43b. Thereby, the front-end
- the pressing portions 54 b of the pair of push buttons 54 are disposed on the side walls 60 a and 60 b of the first and second case elements 12 a and 12 b that sandwich the suction pipe 41 from the width direction of the exterior case 11. Therefore, the pressing portion 54b of the push button 54 can be operated simultaneously with the thumb and forefinger of the hand, for example, when the operator supports the front end of the outer case 11 from below with one hand.
- the side walls 60a and 60b of the first and second case elements 12a and 12b are provided with a pair of first protrusions 52 and a pair of second protrusions 53, respectively.
- the first and second protrusions 52 and 53 protrude from the inner surfaces of the side walls 60 a and 60 b toward the side covers 43 a and 43 b of the suction pipe 41.
- the first protrusions 52 are positioned around the through hole 56 and are separated by 180 ° in the circumferential direction of the through hole 56.
- the second protrusion 53 is positioned around the through hole 56 and is separated by 180 ° in the circumferential direction of the through hole 56.
- one first protrusion 52 and one second protrusion 53 are adjacent to each other in the circumferential direction of the through hole 56.
- the other first protrusion 52 and the other second protrusion 53 are adjacent to each other in the circumferential direction of the through hole 56.
- the button base 54a When the suction pipe 41 is locked in the first position, if the pressing portion 54b of the push button 54 is pushed with a fingertip, the button base 54a resists the urging force of the coil spring 55, and the first and second case elements Move away from the inner surfaces of the side walls 60a, 60b of 12a, 12b. Accordingly, the button base 54a enters the recess 59 of the side covers 43a and 43b, and the engaging groove 54d of the button base 54a is disengaged from the first protrusion 52 on the inner surfaces of the side walls 60a and 60b. Accordingly, the suction pipe 41 is unlocked, and the suction pipe 41 can be rotated from the first position to the second position.
- the suction pipe 41 when the suction pipe 41 is locked in the second position, when the pressing portion 54b of the push button 54 is pushed in with a fingertip, the engagement groove 54d of the button base 54a becomes the second inner surface of the side walls 60a, 60b. Detach from the protrusion 53. Accordingly, the suction pipe 41 is unlocked, and the suction pipe 41 can be rotated from the second position to the first position.
- the vacuum cleaner 1 having such a configuration has two operation modes.
- One operation mode is, for example, a dust collection mode that sucks in dust on the floor surface of the room.
- the other operation mode is a blow mode that blows off dust on the floor.
- the suction pipe 41 of the cleaner body 2 is rotated to the first position shown in FIG. 4 and the extension pipe 4 of the suction unit 3 is connected to the suction pipe 41.
- the operator operating the vacuum cleaner 1 holds the handle 13 and lifts the vacuum cleaner body 2
- the weight of the suction unit 3 is added to the suction pipe 41. Since the suction pipe 41 is locked at the first position by the locking means 51, the suction pipe 41 does not rotate downward.
- Dust with a small mass such as cotton dust is captured by the net filter 47 and stops on the surface of the net filter 47.
- the amount of dust attached to the surface of the net filter 47 increases.
- the dust adhering to the surface of the net filter 47 grows to some extent, the dust adhering to the surface of the net filter 47 is peeled off by the momentum of the air flow along the net filter 47 toward the dust inlet 32a of the dust collecting case 31.
- the net filter 47 is inclined upward as it proceeds in the direction of the dust inlet 32a. Therefore, it becomes easy for the net filter 47 to receive an air flow toward the dust inlet 32a. At the same time, the air flow along the net filter 47 tends to rise with the inclination of the net filter 47, so that dust accumulated on the surface of the net filter 47 is easily separated from the net filter 47. Thereby, clogging of the net filter 47 can be prevented.
- the dust removed from the net filter 47 is guided to the dust collecting case 31 from the dust inlet 32a.
- the air in the ventilation chamber 22 passes through the guard plate 23 and is sucked into the electric blower 28.
- the air sucked into the electric blower 28 is discharged to the blower storage chamber 21 from the rear end of the motor module 28a.
- the air discharged into the blower storage chamber 21 passes through the gap G between the exhaust switching member 35 and the first and second case elements 12a and 12b, and the exhaust switching member 35, the outer peripheral surface of the wall 46 and the partition wall 11b. Flows into a triangular space S1 (see FIG. 8) surrounded by the inclined portion 11f.
- the ventilation groove 36 formed in the inclined portion 11f of the partition wall 11b communicates with the space S1 as shown in FIG. Therefore, the air that has flowed into the space S ⁇ b> 1 flows into the case storage chamber 16 through the ventilation groove 36 and is discharged out of the cleaner body 2 from the exhaust slit 19 of the exterior case 11.
- the suction pipe 41 of the cleaner body 2 is rotated to the second position shown in FIG.
- the operator lifts the cleaner body 2 so that the suction head 5 is separated from the floor surface, and directs the suction head 5 toward the blow target.
- the operator lifts the vacuum cleaner body 2 with one hand and moves the other hand
- the pressing portions 54b of the pair of push buttons 54 are pushed in with the thumb and forefinger.
- the engaging groove 54d of the push button 54 is disengaged from the first protrusions 52 of the first and second case elements 12a, 12b, and the suction pipe 41 is unlocked.
- the suction pipe 41 automatically rotates from the first position toward the second position. Therefore, it is not necessary for the operator to manually rotate the suction pipe 41 downward, and the labor for moving the suction pipe 41 can be saved.
- the suction pipe 41 When the suction pipe 41 reaches the second position, the front half 42a of the pipe body 42 of the suction pipe 41 hits the front end of the air passage closing portion 22b of the outer case 11, and the rotation of the suction pipe 41 is restricted. Further, the engagement groove 54d of the button base 54a that rotates integrally with the suction pipe 41 faces the second protrusion 53 of the first and second case elements 12a, 12b.
- the push button 54 is released in this state, the push button 54 is pushed back by the coil spring 55, and the engagement groove 54 d of the button base 54 a is caught by the second protrusion 53. As a result, the suction pipe 41 is locked at the second position.
- the rotation angle of the suction pipe 41 from the first position to the second position is approximately 45 °.
- the exhaust gas switching member 35 is rotated from the first exhaust position to the second exhaust position and overlaps the lower surface of the inclined portion 11f of the partition wall 11d.
- the ventilation groove 36 is blocked by the exhaust gas switching member 35, and communication between the blower storage chamber 21 and the case storage chamber 16 is blocked.
- a space S2 is generated between the exhaust gas switching member 35 and the stopper portion 24a.
- the second ventilation passage 45 of the suction pipe 41 is directed to the rear of the ventilation chamber 22 and communicated with the space S2.
- the space S ⁇ b> 2 communicates with the blower storage chamber 21 that is the exhaust side of the electric blower 28 through between the stopper portion 24 a and the boss 26.
- the air passage inlet 48 a of the outside air introduction air passage 48 attached to the suction pipe 41 faces the opening end 17 a of the support chamber 17 as the suction pipe 41 rotates.
- the air passage outlet 48b of the outside air introduction air passage 48 is shifted to the rear side of the air passage closing portion 22b and coincides with the inlet 22a of the ventilation chamber 22. Therefore, the ventilation chamber 22 communicates with the outside of the outer case 11 through the outside air introduction air passage 48 and the opening end 17a of the support chamber 17a.
- the air in the ventilation chamber 22 is sucked and a negative pressure acts on the inlet 22a.
- the suction pipe 41 is in the second position
- the inlet 22 a of the intake chamber 22 communicates with the air passage outlet 48 b of the outside air introduction air passage 48.
- the air passage inlet 48 a of the outside air introduction air passage 48 communicates with the outside of the outer case 11 from the open end 17 a of the support chamber 17.
- air outside the outer case 11 (outside air) is sucked into the ventilation chamber 22 through the outside air introduction air passage 48.
- the air sucked into the electric blower 28 from the ventilation chamber 22 through the guard plate 23 is discharged from the rear end of the motor module 28a to the blower storage chamber 21.
- the air discharged into the blower storage chamber 21 flows into the space S2 between the exhaust gas switching member 35 and the stopper portion 24a.
- the second ventilation passage 45 communicates with the space S ⁇ b> 2 directly below the tip of the exhaust switching member 35, and the exhaust switching member 35 faces upward toward the second ventilation passage 45. It is inclined. Therefore, the air flowing into the space S2 is guided to the second ventilation passage 45 of the suction pipe 41 with the exhaust gas switching member 35 as a guide, and the pipe of the suction pipe 41 through the net filter 47 and the first ventilation passage 44. Flows into the body 42.
- the air sucked into the electric blower 28 does not pass through the first and second ventilation passages 44 and 45 of the suction pipe 41 and directly enters the ventilation chamber 22 from the outside air introduction air passage 48. Led. In other words, in the blower mode, the air outside the cleaner body 2 is sucked into the electric blower 28 bypassing the dust collection case 31 where dust accumulates.
- the air volume of the blown air ejected from the dust inlet of the suction head 5 is not affected by the amount of dust accumulated in the dust collecting case 31. Therefore, the air volume of the air for blowing can be kept constant.
- the wall 46 of the suction pipe 41 closes the dust inlet 32a of the dust collecting case 31. For this reason, the dust collected in the dust collecting case 31 does not leak out of the dust collecting case 31 due to the flow of the air for blowing passing through the suction pipe 41.
- the pressing portions 54b of the pair of push buttons 54 are pushed in with the thumb and index finger of one hand as described above. Thereby, the engaging groove 54d of the push button 54 is disengaged from the second protrusion 53, and the suction pipe 41 is unlocked.
- the vacuum cleaner main body 2 In a state where the suction pipe 41 is unlocked, the vacuum cleaner main body 2 is brought close to the floor surface and the suction head 5 of the suction unit 3 is pressed against the floor surface. Thereby, the suction pipe 41 is pushed up via the suction unit 3 and is automatically rotated from the second position toward the first position. Therefore, it is not necessary for the operator to manually rotate the suction pipe 41 upward, and the labor for moving the suction pipe 41 can be saved.
- the engagement groove 54d of the button base 54a that rotates together with the suction pipe 41 faces the first protrusions 52 of the first and second case elements 12a, 12b.
- the push button 54 is released in this state, the push button 54 is pushed back by the coil spring 55, and the engagement groove 54 d of the button base 54 a is hooked on the first protrusion 52. For this reason, the suction pipe 41 is locked in the first position.
- the rotation angle of the suction pipe 41 from the second position to the first position is approximately 45 °.
- the exhaust switching member 35 When the suction pipe 41 is rotated from the second position to the first position, the exhaust switching member 35 is rotated from the second exhaust position to the first exhaust position. By this rotation, air containing dust is sucked into the suction pipe 41 and normal cleaning work can be performed. Therefore, the indoor dust blown away by the air for blowing can be sucked from the suction head 5 and guided to the dust collecting case 31.
- the air volume of the air for blowing is not affected by the amount of dust accumulated in the dust collecting case 31, and the air for blowing air
- the air volume can be kept constant.
- the suction pipe 41 is supported by the outer case 11 of the cleaner body 2 so as to be rotatable in the vertical direction. Therefore, when the vacuum cleaner body 2 is lifted and the suction head 5 of the suction unit 3 is separated from the floor surface, the weight of the suction unit 3 is added to the suction pipe 41, and the unlocked suction pipe 41 is moved from the first position. Rotate to the second position. Therefore, the operation mode of the vacuum cleaner 1 can be automatically switched from the dust collection mode to the air blowing mode using the weight of the suction unit 3.
- the unlocked suction pipe 41 receives an upward force from the second position to the first position. Rotate. Therefore, the operation mode of the vacuum cleaner 1 can be automatically switched from the air blowing mode to the dust collection mode using the operation of pressing the suction head 5 against the floor surface.
- the exhaust gas switching member 35 rotates to either the first exhaust position or the second exhaust position following the rotation of the suction pipe 41, the flow direction of the air discharged from the electric blower 28 is changed. Switch automatically. For this reason, it is not necessary for the operator to manually rotate the exhaust gas switching member 35, and the labor for moving the exhaust gas switching member 35 can be saved.
- the outside air introduction air passage 48 opens and closes following the rotation of the suction pipe 41, and the outside air introduction route to the ventilation chamber 22 is automatically switched.
- the operation mode of the vacuum cleaner 1 can be switched by simply rotating the suction pipe 41 in the vertical direction. For this reason, operation mode switching operation can be performed easily and the usability of the vacuum cleaner 1 is improved.
- the suction pipe 41 to which the suction unit 3 is connected is integrally incorporated in the outer case 11 containing the electric blower 28. For this reason, without using the exhaust introduction pipe
- the present invention is not limited to the first embodiment, and can be variously modified without departing from the spirit of the invention.
- a location where the electric blower is built in the exterior case and a location where a support chamber for supporting the suction pipe is formed may be separate components. That is, for example, when the present invention is applied to an upright type vacuum cleaner having a dust suction hose connected to the exterior case of the vacuum cleaner main body, a hand operating portion provided at the tip of the dust suction hose and connected to the extension pipe Can be used as an element for supporting the suction pipe.
- the exterior case in which the electric blower is housed and the hand control section may be connected by an exhaust pipe other than the dust suction hose.
- the exhaust of the electric blower discharged into the exterior case can be guided to the hand operating unit via the exhaust introduction pipe.
- the locking means of the first embodiment has a second protrusion that locks the suction pipe in the second position, but the second protrusion may be omitted. According to this configuration, when the suction pipe reaches the second position, the suction pipe abuts against the front end of the air passage closing portion of the outer case, so that excessive rotation of the suction pipe is limited. Therefore, the suction pipe can be held at the second position without the second protrusion.
- a suction pipe can be easily rotated from a 2nd position to a 1st position, and it can change to dust collection mode quickly from ventilation mode.
- a dust collection case is used as the dust collection unit, but a dust collection bag may be used instead of the dust collection case. Further, it is not necessary to provide the pressing portions exposed on the side surfaces of the first and second case elements even in the locking means, and the pressing portions are provided only on the side surfaces of the first case element or the second case element. You may do it.
- the air passage closing portion closes the air passage outlet of the outside air introduction passage when the suction pipe is rotated to the first position, and the suction pipe is moved to the second position. When it is turned, it opens the airway exit.
- the air passage closing portion is not limited to opening and closing the air passage outlet. For example, when the suction pipe is rotated to the first position, the air passage inlet of the outside air introduction air path is closed and the suction pipe is the second. The air passage inlet of the outside air introduction air passage may be opened when it is rotated to the position.
- the vacuum cleaner 101 has two operation modes, a dust collection mode and a ventilation mode.
- the electric vacuum cleaner 101 includes a vacuum cleaner main body 102 and a dust suction hose 103.
- the vacuum cleaner main body 102 has wheels (not shown), and is movable along the floor surface to be cleaned, for example.
- the vacuum cleaner main body 102 has an exterior case 111.
- a suction port 131 b for sucking air containing dust is formed in the front wall of the exterior case 111.
- the air outlet 161 is formed in the bottom wall of the exterior case 111.
- the dust suction hose 103 has a connecting pipe 104 at one end. Further, a hand operating part (not shown) provided with a handle is connected to the other end of the dust suction hose 103. An extension tube is detachably connected to the hand control unit. A suction head having a dust suction port is detachably connected to the tip of the extension pipe.
- the extension pipe and the suction head have the same configuration as that of the first embodiment, and constitute a suction unit in cooperation with the dust suction hose 103.
- connection pipe 104 of the dust suction hose 103 is detachably connected to the outer case 111 by being inserted into either the suction port 131b or the blower port 161.
- the connection pipe 104 is connected to and removed from the outer case 111 by an operator's manual work.
- the interior of the exterior case 111 is partitioned into three chambers, a dust collection chamber 131a, a ventilation chamber 122, and a blower storage chamber 121, by a first partition 111a and a second partition 111b.
- the first partition wall 111a and the second partition wall 111b are arranged at intervals in the front-rear direction of the exterior case 111.
- the dust collection chamber 131 a is located at the front end of the outer case 111.
- the suction port 131b into which the connecting pipe 104 is inserted is opened to the dust collection chamber 131a.
- the blower storage chamber 121 is located at the rear end of the outer case 111.
- a blower port 161 into which the connecting pipe 104 is inserted is opened in the blower storage chamber 121.
- the ventilation chamber 122 is located in an intermediate portion of the outer case 111 and is interposed between the dust collection chamber 131a and the blower storage chamber 121.
- the first partition 111a located between the dust collection chamber 131a and the ventilation chamber 122 supports the filter 147.
- the filter 147 is for filtering the air guided from the connection pipe 104 of the dust suction hose 103 to the dust collection chamber 131a, and is exposed to both the dust collection chamber 131a and the ventilation chamber 122. Therefore, the dust collection chamber 131a and the ventilation chamber 122 are communicated with each other via the filter 147.
- the dust collection chamber 131a and the filter 147 cooperate with each other to form a dust collection portion 131 inside the outer case 111.
- the intake air switching member 141 is movably provided on the front wall of the outer case 111.
- the intake air switching member 141 is a valve that can be rotated between a first position for collecting dust that opens the suction port 131b and a second position for blowing air that closes the suction port 131b.
- the intake air switching member 141 is pushed by the connection pipe 104 to open the suction port 131b.
- the intake air switching member 141 closes the suction port 131b by its own weight or a biasing force of a return spring (not shown).
- External air introduction means 138 is provided on the upper wall of the exterior case 111.
- the outside air introduction means 138 includes an outside air introduction hole 148 and a first lid member 149.
- the outside air introduction hole 148 is opened to the ventilation chamber 122 located on the downstream side of the dust collection chamber 131a. Therefore, the ventilation chamber 122 communicates with the outside of the exterior case 111 through the outside air introduction hole 148.
- the first lid member 149 is supported on the inner surface of the upper wall of the outer case 111 so as to be slidable in the front-rear direction of the outer case 111.
- the first lid member 149 is slidable between a first switching position where the outside air introduction hole 148 is closed and a second switching position where the outside air introduction hole 148 is opened.
- the intake air switching member 141 and the first lid member 149 are interlocked with each other.
- the first lid member 149 follows the rotation of the intake air switching member 141 to the first switching position. Slide. As shown in FIG. 19, when the intake air switching member 141 is rotated to the second position, the first lid member 149 is slid to the second switching position following the rotation of the intake air switching member 141.
- the blower storage chamber 121 is located downstream of the ventilation chamber 122.
- the electric blower 128 is stored in the blower storage chamber 121.
- the electric blower 128 includes a motor module 128a and a fan module 128b.
- the fan module 128b is supported by a second partition wall 111b that partitions the ventilation chamber 122 and the blower storage chamber 121 from each other.
- An air inlet (not shown) of the fan module 128b is exposed to the ventilation chamber 122 and sucks air in the ventilation chamber 122.
- the motor module 128 a is located inside the blower storage chamber 121.
- the air sucked into the fan module 128b from the intake port passes through the inside of the motor module 128a and is discharged from the rear end of the motor module 128a to the blower storage chamber 121.
- An exhaust hole 119 is formed in the rear portion of the upper wall of the exterior case 111.
- the exhaust hole 119 is opened to the blower storage chamber 121 and is located behind the outside air introduction hole 148.
- the exhaust hole 119 is opened away from the first lid member 149 when the first lid member 149 is slid to the first switching position.
- the exhaust hole 119 is closed by the first lid member 149. Therefore, the exhaust hole 119 maintains an open state when the outside air introduction hole 148 is closed, and maintains a closed state when the outside air introduction hole 148 is open.
- a second lid member 162 is movably provided on the bottom wall of the outer case 111.
- the second lid member 162 is a valve that is rotatable between a closed position that closes the air outlet 161 and an open position that opens the air outlet 161.
- the second lid member 162 closes the air blowing port 161 by its own weight or the urging force of a return spring (not shown) when the connecting pipe 104 is pulled out from the air blowing port 161.
- the second lid member 162 is pushed by the connection pipe 104 to open the blower opening 161 when the connection pipe 104 is inserted into the blower opening 161.
- connection pipe 104 of the dust suction hose 103 is inserted into the suction port 131b at the front end of the exterior case 111 as shown in FIG.
- the intake air switching member 141 is rotated to the first position, and the first lid member 149 is slid to the first switching position following the rotation of the intake air switching member 141.
- the outside air introduction hole 148 is closed and the exhaust hole 119 is opened.
- the second lid member 162 is rotated to the closed position to close the air outlet 161.
- the air that has passed through the filter 147 is sucked into the electric blower 128 via the ventilation chamber 122.
- the air sucked into the electric blower 128 is discharged from the rear end of the motor module 128a into the blower storage chamber 121.
- the air discharged into the blower storage chamber 121 is discharged out of the cleaner body 102 through the opened exhaust hole 119.
- An arrow X in FIG. 18 indicates an air flow path in the cleaner main body 102 when the electric vacuum cleaner 101 is in the dust collection mode.
- connection pipe 104 of the dust suction hose 103 is pulled out from the suction port 131b.
- the drawn connection pipe 104 is inserted into the air outlet 161 and connected to the outer case 111.
- the intake air switching member 141 When the connecting pipe 104 is pulled out from the suction port 131b, the intake air switching member 141 is rotated from the first position to the second position to close the suction port 131b. At the same time, following the rotation of the intake air switching member 141, the first lid member 149 is slid from the first switching position to the second switching position. By this slide, the outside air introduction hole 148 is opened and the exhaust hole 119 is closed. Further, the second lid member 162 is rotated from the closed position toward the open position by the connecting pipe 104 inserted into the blower port 161, and the blower storage chamber 121 is connected to the dust suction hose 103 via the connecting pipe 104. .
- the air in the ventilation chamber 122 is sucked and a negative pressure acts on the outside air introduction hole 148 opened in the ventilation chamber 122.
- the air outside the cleaner main body 102 bypasses the dust collection chamber 131a and is directly sucked into the ventilation chamber 122.
- the air sucked into the ventilation chamber 122 is sucked into the electric blower 128 and discharged from the rear end of the motor module 128a to the blower storage chamber 121.
- the air discharged into the blower storage chamber 121 is guided to the suction head from the connection pipe 104 through the dust suction hose 103 and is ejected from the dust suction port of the suction head.
- An arrow Y in FIG. 19 indicates an air flow path in the cleaner main body 102 when the electric vacuum cleaner 101 is in the air blowing mode.
- the air sucked into the electric blower 128 directly enters the ventilation chamber 122 from the outside air introduction hole 148 without passing through the dust collection chamber 131a.
- the air outside the cleaner body 102 is sucked into the electric blower 128 bypassing the dust collection chamber 131a where dust accumulates.
- the air volume of the blowing air ejected from the dust suction port of the suction head is not affected by the amount of dust accumulated in the dust collecting chamber 131a, and the air volume of the blowing air can be kept constant. .
- the first lid member 149 is slid following the rotation of the intake air switching member 141 to open the exhaust hole 119 when the outside air introduction hole 148 is closed, and the outside air introduction hole 148.
- the exhaust hole 119 is closed.
- the air outlet 161 is closed by the second lid member 162 unless the connecting pipe 104 of the dust suction hose 103 is connected to the air outlet 161. Therefore, the trouble of manually moving the intake air switching member 141, the first lid member 149, and the second lid member 162 can be saved.
- the vacuum cleaner 101 when the vacuum cleaner 101 is switched to the dust collection mode by inserting it into the connection pipe 104 of the dust suction hose 103 into the suction port 131b of the outer case 111, a normal cleaning operation for sucking in dust on the floor surface is performed. Can do. Furthermore, by pulling out the connecting pipe 104 of the dust suction hose 103 from the suction port 131b and inserting it into the blower port 161, the vacuum cleaner 101 can be switched to the blower mode, and dust on the floor can be blown away.
- the operation mode of the electric vacuum cleaner 101 can be switched by inserting the suction pipe 41 into either the suction port 131b or the blower port 161. For this reason, the operation mode switching operation can be easily performed, and the usability of the electric vacuum cleaner 101 is improved.
- the outside air introduction hole 148 and the exhaust hole 119 are selectively opened and closed by the common first lid member 149. Therefore, the number of parts of the vacuum cleaner 101 can be reduced in comparison with the case where the outside air introduction hole 148 and the exhaust hole 119 are individually opened and closed. However, there is no problem even if the outside air introduction hole 148 and the exhaust hole 119 are individually opened and closed by a dedicated lid member.
- the first lid member 149 may be configured to open and close only the outside air introduction hole 148.
- the connection pipe 104 of the dust suction hose 103 is detachably connected to the exhaust hole 119, and the blower hole 161 and the lid member 162 can be omitted.
- the intake air switching member 141, the first lid member 149, and the second lid member 162 may be configured to be manually rotated individually.
- the intake air switching member 141, the first lid member 149, and the second lid member 162 may each be constituted by an electromagnetic valve, and an operation button for operating each electromagnetic valve may be provided at the hand operation portion of the dust suction hose. According to this configuration, the intake air switching member 141, the first lid member 149, and the second lid member 162 inside the exterior case 111 can be remotely operated by the hand operation unit.
- the air outlet 161 may be always opened by omitting the second lid member 162. According to this configuration, a part of the exhaust of the electric blower 128 discharged to the blower storage chamber 121 when the vacuum cleaner 101 is in the dust collection mode can be discharged out of the outer case 111 from the blower port 161.
- connection pipe 104 of the dust suction hose 103 is detachably inserted into the air outlet 161.
- the present invention is not limited to the second embodiment, and instead of the connection pipe 104, a blower-only blower pipe may be removably inserted into the blower port 161.
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Abstract
Description
Claims (10)
- 集塵モードおよび送風モードに切り替え可能な電気掃除機であって、
排気口を有する掃除機本体と、
前記掃除機本体に収容されて前記掃除機本体内の空気を吸引する電動送風機と、
前記掃除機本体に設けられ、前記電動送風機の運転により前記掃除機本体内に吸い込まれた空気中に含まれる塵を集める集塵部と、
前記集塵モードの時に前記電動送風機の運転に伴って前記掃除機本体内に吸い込まれた塵を前記集塵部に集める第1の位置と、前記送風モードの時に前記集塵動作を中断させる第2の位置との間で移動可能に前記掃除機本体に設けられた吸気切り替え部材と、
前記集塵モードの時に前記電動送風機から排出された排気を前記排気口に導く第1の排気位置と、前記送風モードの時に前記電動送風機から排出された排気を送風用空気として前記掃除機本体の外に導く第2の排気位置との間で移動可能に前記掃除機本体に設けられた排気切り替え部材と、
前記集塵モードの時に前記掃除機本体内への外気の導入を遮断するとともに、前記送風モードの時に前記集塵部を迂回して前記掃除機本体内に外気を導入する外気導入手段と、
を具備したことを特徴とする電気掃除機。 - 請求項1の記載において、前記掃除機本体は、外気が導入される通気室と、前記通気室に連通するように前記通気室の下流に設けられ、前記電動送風機が格納された格納室とを有し、前記電動送風機は前記通気室内の空気を吸引するとともに、前記排気口は前記格納室に連通されていることを特徴とする電気掃除機。
- 請求項2の記載において、前記吸気切り替え部材は、前記掃除機本体に回動可能に支持された吸込み管であって、前記吸込み管は、第1の通気通路と、前記第1の通気通路から分岐された第2の通気通路と、前記第1の通気通路と前記第2の通気通路との間に設けられた壁部と、を含み、
前記第1の通気通路は、前記吸込み管が前記第1の位置に回動された時に前記集塵部の入口に連通するとともに、前記吸込み管が前記第2の位置に回動された時に前記集塵部の入口から離脱し、
前記第2の通気通路は、前記吸込み管が前記第1の位置に回動された時に前記通気室に連通するとともに、前記吸込み管が前記第2の位置に回動された時に前記電動送風機の排気側に連通し、
前記壁部は、前記吸込み管が前記第1の位置に回動された時に前記集塵部の入口を開放するとともに、前記吸気管が前記第2の位置に回動された時に前記集塵部の入口を閉塞することを特徴とする電気掃除機。 - 請求項3の記載において、前記吸込み管は、前記第1の通気通路と前記第2の通気通路との間に介在されたネットフィルターを有することを特徴とする電気掃除機。
- 請求項4の記載において、前記吸込み管は、前記第1の位置と前記第2の位置との間で上下方向に回動可能に前記本体に支持され、前記ネットフィルターは、前記吸込み管が前記第1の位置に回動された時に、前記集塵部の入口に近づくに従い上向きに傾斜されていることを特徴とする電気掃除機。
- 請求項3の記載において、前記排気切り替え部材は、前記吸気切り替え部材に追従して回動するように前記掃除機本体に支持され、前記吸気切り替え部材が前記第1の位置に回動された時に前記排気切り替え部材が前記第1の排気位置に回動されるとともに、前記吸気切り替え部材が前記第2の位置に回動された時に前記排気切り替え部材が前記第2の排気位置に回動されることを特徴とする電気掃除機。
- 請求項3の記載において、前記外気導入手段は、前記吸込み管に設けられた外気導入風路と、前記掃除機本体に設けられた風路閉じ部とを備え、
前記風路閉じ部は、前記吸込み管が前記第1の位置に回動された時に前記外気導入風路の風路入口又は風路出口を閉じるとともに、前記吸込み管が前記第2の位置に回動された時に前記風路入口又は前記風路出口を開くことを特徴とする電気掃除機。 - 請求項1の記載において、前記掃除機本体は、前記集塵部の下流であり、かつ前記電動送風機の上流に設けられた通気室と、前記集塵部と前記通気室との間に介在されたフィルターと、を有し、前記吸気切り替え部材は前記集塵部の入口を開閉するとともに、
前記外気導入手段は、前記通気室に外気を導く導入孔と、前記導入孔を開閉する蓋部材とを有し、前記蓋部材は、前記吸気切り替え部材が前記集塵部の入口を開いた時に前記導入孔を閉塞し、前記吸気切り替え部材が前記集塵部の入口を閉じた時に前記導入孔を開放するように前記吸気切り替え部材に連動されていることを特徴とする電気掃除機。 - 請求項2の記載において、上記吸気切り替え部材は、被掃除面に沿って移動可能な吸込みヘッドを有する延長管が取り外し可能に接続される吸込み管であって、前記吸込み管は、前記第1の位置と前記第2の位置との間で上下方向に回動可能に前記掃除機本体に支持されて、前記吸込みヘッドを前記被掃除面に押し付けた時に前記掃除機本体に対し上向きに回動されて前記第1の位置に達するとともに、前記吸込みヘッドを前記被掃除面から離した時に前記延長管の重量により前記掃除機本体に対し下向きに回動されて前記第2の位置に達することを特徴とする電気掃除機。
- 請求項9の記載において、前記吸込み管を少なくとも前記第1の位置にロックするロック手段をさらに備えており、このロック手段は、ロック解除用の一対のプッシュボタンを有するとともに、これらプッシュボタンは、前記吸込み管の端部を前記掃除機本体の幅方向から挟み込む前記掃除機本体の一対の側壁の上に配置されていることを特徴とする電気掃除機。
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KR1020117027497A KR101327592B1 (ko) | 2009-05-21 | 2010-05-20 | 전기 청소기 |
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JP2009123138A JP2010268960A (ja) | 2009-05-21 | 2009-05-21 | 電気掃除機 |
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JP2009132280A JP2010274041A (ja) | 2009-06-01 | 2009-06-01 | 電気掃除機 |
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Cited By (4)
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US20170071432A1 (en) * | 2015-09-14 | 2017-03-16 | Dyson Technology Limited | Handle assembly for a vacuum cleaner |
EP3491987A4 (en) * | 2016-07-29 | 2020-04-29 | Toshiba Lifestyle Products & Services Corporation | ELECTRIC VACUUM CLEANER |
US11350806B2 (en) | 2020-01-03 | 2022-06-07 | Techtronic Cordless Gp | Handheld vacuum cleaner |
US11382475B2 (en) | 2017-06-19 | 2022-07-12 | Tti (Macao Commercial Offshore) Limited | Surface cleaning apparatus |
Families Citing this family (8)
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KR101411562B1 (ko) * | 2012-08-31 | 2014-07-02 | 조규호 | 진공 청소기 |
JP6710070B2 (ja) | 2016-03-14 | 2020-06-17 | 東芝ライフスタイル株式会社 | ハンディ型電気掃除機 |
KR102007284B1 (ko) | 2016-05-31 | 2019-08-05 | 최강일 | 수열탄화반응을 이용한 하이브리드 바이오 석탄 제조 방법 |
WO2018000716A1 (zh) * | 2016-06-30 | 2018-01-04 | 江苏美的清洁电器股份有限公司 | 手持吸尘器 |
GB2554936B (en) * | 2016-10-14 | 2022-03-30 | Techtronic Floor Care Tech Ltd | Surface cleaning apparatus |
CN209941581U (zh) * | 2017-12-12 | 2020-01-14 | 苏州宝时得电动工具有限公司 | 吹吸机 |
JP2020171515A (ja) * | 2019-04-11 | 2020-10-22 | 日立グローバルライフソリューションズ株式会社 | 電気掃除機 |
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US20170071432A1 (en) * | 2015-09-14 | 2017-03-16 | Dyson Technology Limited | Handle assembly for a vacuum cleaner |
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KR20120022985A (ko) | 2012-03-12 |
CN102438495B (zh) | 2014-05-14 |
RU2500331C2 (ru) | 2013-12-10 |
KR101327592B1 (ko) | 2013-11-12 |
RU2011147066A (ru) | 2013-06-27 |
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