JP2005065770A - Electric vacuum cleaner - Google Patents

Abstract

An electric vacuum cleaner with good usability is provided.
A hand control unit having a plurality of setting buttons respectively corresponding to a drive mode and a stop mode of an electric blower is provided. A removing means 51 for removing dust collected by the pleated filter 48 that collects dust sucked together with air by driving the electric blower 7 is provided. A control means 61 is provided for driving the removing means 51 when the off button is pressed while the electric blower 7 is stopped. When the operator presses the off button of the electric blower 7 while the electric blower 7 is stopped, the removal means 51 can be easily driven by the control means 61 at any timing, and the usability is good. Become.
[Selection] Figure 1

Description

  The present invention relates to a vacuum cleaner provided with a removing means for removing dust collected by a filter from the filter.

  Conventionally, this type of vacuum cleaner includes a vacuum cleaner body in which a front portion and a rear portion are detachably connected. In the cleaner body, a dust collecting chamber is provided at the front, and an electric blower having a suction side communicating with the dust collecting chamber is provided at the rear. A pleated filter is disposed in the dust collection chamber. A dust drop lever as a removing means is provided so as to be rotatable along the surface direction of the filter between the rear end portion of the dust collecting chamber which is the rear portion of the filter, that is, between the filter and the suction side of the electric blower. Yes. This dust drop lever is used by an operator to turn the filter left and right to strike the filter, and remove dust collected by the filter from the filter, that is, remove dust (for example, refer to Patent Document 1).

  However, in the electric vacuum cleaner described in Patent Document 1, the operator must remove the front part of the vacuum cleaner body from the rear and operate the dust drop lever when dust is dropped. There is a problem that it is complicated.

In view of this, it is conceivable to provide a removal means that is driven by a motor and strikes the filter in the main body of the cleaner, and a control means that automatically drives the removal means via the motor in conjunction with the stop of the electric blower.
Japanese Examined Patent Publication No. 61-3488 (page 1-2, FIG. 1-5)

  In general, the dust removal by the removing means only needs to be performed once at the end of cleaning, and it is not necessary to frequently remove dust every short time during cleaning.

  However, in the above-described electric vacuum cleaner, since the removing means is driven each time the electric blower is stopped, for example, the electric blower is temporarily stopped during cleaning and, for example, a heavy object is moved, and then the electric blower is driven again. Even when the electric blower is stopped for a short period of time, such as when cleaning a position where there was a heavy object, the removal means is driven each time and the associated noise is annoying and not easy to use. have.

  This invention is made | formed in view of such a point, and it aims at providing a vacuum cleaner with favorable usability.

  The present invention relates to a dust control unit having a plurality of setting buttons each corresponding to a drive mode and a stop mode of an electric blower, and dust collected by a filter that collects dust sucked together with air by driving the electric blower. The removing means for removing the filter and the control means for driving the removing means when the setting button corresponding to the stop mode of the electric blower is pressed while the electric blower is stopped. And, when the electric blower is stopped, the operator presses the setting button of the manual operation unit corresponding to the stop mode of the electric blower, so that the removal means can be easily driven by the control means at an arbitrary timing. Becomes possible, and usability is improved.

  According to the present invention, when the electric blower is stopped, the operator presses the setting button of the manual operation unit corresponding to the stop mode of the electric blower, so that the removal means can be easily removed at any timing by the control means. Can be driven, and usability can be improved.

  Hereinafter, the configuration of a vacuum cleaner according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4.

  1 and 3, reference numeral 1 denotes a vacuum cleaner main body. The vacuum cleaner main body 1 is a so-called cyclone type electric vacuum cleaner that collects dust by centrifugal separation by swirling the sucked-in air. The vacuum cleaner main body 1 includes a lower case 2, a middle case 3 attached to the upper side of the lower case 2, and an upper case attached to the lower case 2 and the middle case 3 by closing the rear portion of the middle case 3. 4 and a body case 6 having a lid 5 that covers the front upper part of the middle case 3 so as to be openable and closable. Further, an electric blower 7 is accommodated between the middle case 3 and the upper case 4 of the main body case 6.

  And on the front side of the lower case 2, there is provided a cup holding portion 12 which is a bottomed cylindrical space in which a turning wheel 11 is turnably and rotatably attached to the bottom portion. The upper side of the cup holder 12 is covered with the lid 5. A pair of traveling wheels 13 that are rotatable along the front side and the rear side in the traveling direction of the main body case 6 are respectively attached to both sides of the lower case 2 on the rear side. As a result, the cleaner body 1 can travel on the floor as the surface to be cleaned.

  Further, on the front side of the lid body 5, a main body suction port 14 that opens toward the front is provided. A base end of a flexible hose body 15 communicates with the main body suction port 14 and is detachably connected. At the tip of the hose body 15, a hand operation unit 16 that can select a driving mode of the electric blower 7 is provided.

  The hand control unit 16 includes a plurality of setting buttons 17 respectively corresponding to driving modes such as weak, medium and strong of the electric blower 7 in the cleaner body 1 and a stop mode, that is, a cut mode. In addition, a gripping portion 18 that is gripped by the operator when cleaning is protruded from the hand operating portion 16 on the proximal end side. Further, an elongated, substantially cylindrical extension tube 21 that can be expanded and contracted is detachably connected to the distal end of the hand operating portion 16. And the floor brush 22 as a suction inlet body which sucks in the dust on this carpet is installed in the tip of this extension pipe 21, for example on the carpet of the floor of a room, etc., and is connected so that attachment or detachment is possible. .

  The lower case 2 and the upper case 4 are partitioned by the middle case 3 into a blower chamber 23 that houses the electric blower 7 and a cord reel chamber 25 that houses the cord reel 24.

  A partition wall 26 having a substantially circular shape in plan view is provided at the front portion of the blower chamber 23 so as to close the front portion of the blower chamber 23. The partition wall 26 is provided with a plurality of communication holes 27 that allow the cup holding portion 12 and the suction side of the electric blower 7 to communicate with each other in an airtight state.

  On the other hand, a power cord 31 for supplying power to drive the electric blower 7 from outside is wound around the cord reel 24 in the cord reel chamber 25, and the power cord 31 is attached to and detached from an outlet portion (not shown). A plug portion (not shown) that can be connected is provided.

  In addition, the cup holder 12 is provided with a dust cup 33 as a dust separator. The dust cup 33 includes a fine dust separation part 34 in which the suction side communicates with the main body suction port 14 with the dust cup 33 attached to the cup holding part 12, and a cup holding part that communicates with the exhaust side of the fine dust separation part 34. 12 has a cylindrical cup portion 35 with a bottom as a cyclone dust collecting portion placed on the top, and a handle portion 36 that enables the operator to grip the fine dust separating portion 34 and the cup portion 35 integrally. I have.

  The fine dust separation part 34 includes a pipe-like cylinder part 41 bent in a substantially L shape toward the cup part 35. A plurality of holes 42 that penetrate the side wall and communicate with the cup holding part 12 are provided on the side wall of the cylindrical part 41, and fine dust that is sucked together with the suction air from the electric blower 7 in the hole part 42. That is, a net-like net filter 43 that captures fine dust is attached.

  The cup part 35 swirls dust with relatively large particles and large mass, which is not desired to be sucked into the electric blower 7 sucked together with the sucked air from the electric blower 7, and drops the dust by centrifugal separation by its own weight. A substantially cylindrical cup body 44 for collecting dust is provided. A cup lower lid 45 that closes the lower end of the cup main body 44 is attached to the lower end of the cup main body 44 so that the lower end of the cup main body 44 can be opened and closed. Further, a cup portion exhaust hole 46 for communicating the inside of the cup portion main body 44 and the cup holding portion 12 is provided at the upper end portion of the cup portion main body 44. A mesh filter 47 that captures fine dust that could not be centrifuged in the cup part main body 44 is attached to the cup part exhaust hole 46.

  The handle portion 36 is provided with an opening / closing operation button (not shown) for opening and closing the cup portion lower lid 45 with respect to the cup portion main body 44.

  On the other hand, a pleated filter 48 as a filter for collecting fine dust that could not be collected by the dust cup 33 is attached between the cup holder 12 and the partition wall 26. That is, the pleated filter 48 is located in communication with the suction side of the electric blower 7. Further, the pleated filter 48 is provided in a so-called pleated shape formed in a waveform in which each crest and each trough are provided along the width direction of the cleaner body 1. Further, the pleated filter 48 is attached so as to cover the entire cup holding portion 12 side of the communication hole 27 of the partition wall 26, that is, the entire air path.

  A removal means 51 is provided at the rear of the pleat filter 48 to clean the dust attached to the pleat filter 48, that is, to remove the dust. The removing means 51 includes a substantially disk-shaped rotating body 52 and a dust drop motor 53 as a drive unit that rotates the rotating body 52 along the circumferential direction.

  The rotating body 52 is located between the exhaust side of the pleated filter 48 and the suction side of the electric blower 7 and has a cylindrical central shaft portion 54 concentrically. The central shaft portion 54 protrudes toward the rear side of the rotating body 52 and is pivotally supported by the partition wall 26 so as to be rotatable. In addition, the rotating body 52 is provided with a plurality of through holes 55 that are spaced apart from each other around the central shaft portion 54. Further, a projection 56 is provided between the through hole 55 and the through hole 55 of the rotating body 52 so as to contact the pleated filter 48 and vibrate the pleated filter 48. The protrusion 56 protrudes so as to reduce in diameter toward the front side of the rotating body 52, and is shallowly engaged with a valley portion of the pleat filter 48 while being biased in the front-rear direction by a spring (not shown), for example. .

  In the dust removal motor 53, the rotary shaft 57 is press-fitted into the central shaft portion. The dust removing motor 53 is driven by the electric power supplied via the power cord 31 to rotate the rotating body 52 in the circumferential direction.

  In the vacuum cleaner body 1, the air sucked by driving the electric blower 7 passes through the main body suction port 14, the fine dust separation part 34 and the cup part 35, or the hole part 42 and the cup holding part 12, the through hole. 55, an air passage 58 that reaches the exhaust port via the communication hole 27 and the blower chamber 23 is formed. Therefore, the pleated filter 48 is located in the air path 58.

  On the other hand, on the exhaust side of the electric blower 7 in the main body case 6, for example, a control means 61 including a circuit board including a circuit having a timer or the like is disposed.

  Next, the internal configuration of the electric vacuum cleaner according to the embodiment will be described.

  As shown in FIG. 2, in the vacuum cleaner main body 1, a power supply unit 62 that supplies power to the dust removal motor 53 of the removing unit 51, the electric blower 7, and a control unit that controls driving of the electric blower 7. 61 etc. are provided.

  The power supply unit 62 is electrically connected to one terminal of the commercial AC power supply e, and is also electrically connected to the emitter of the transistor Q as the first current control element. Here, the transistor Q has a collector electrically connected to the dust removing motor 53 and a base electrically connected to the control means 61. The power source 62 and the dust removal motor 53 are grounded.

  The electric blower 7 is electrically connected to a commercial AC power source e through a triac Tr as a bidirectional second current control element.

  The control means 61 is electrically connected to the setting button 17 of the hand control unit 16. The control means 61 is electrically connected to the gate of the triac Tr. This control means 61 controls the phase conduction angle by supplying a predetermined pulse voltage to the gate of the TRIAC Tr in accordance with the ON / OFF of the setting button 17 selected by the operator to turn the TRIAC Tr on and off, and the commercial AC power source e The drive mode of the electric blower 7 is controlled by controlling the input voltage to the electric blower 7.

  Further, the control means 61 is electrically connected to the base of the transistor Q. This control means 61 supplies a predetermined pulse voltage to the base of the transistor Q to control the conduction state between the emitter and collector of the transistor Q, thereby controlling the input voltage from the power source 62 to the dust removal motor 53. Thus, the driving of the dust removing motor 53 is controlled.

  Next, the cleaning operation of the first embodiment will be described.

  First, the lid body 5 of the main body case 6 is rotated to fit the dust cup 33 and the lid body 5 is closed.

  In addition, the base end of the hose body 15 is connected to the main body suction port 14, and the base end of the extension pipe 21 having the floor brush 22 connected to the tip is connected to the tip of the hose body 15.

  Then, the power cord 31 is led out from the rear of the lower case 2 and the plug portion of the power cord 31 is inserted into an outlet portion provided on a wall surface or the like.

  Thereafter, while holding the hand operation part 16 of the hose body 15, the predetermined setting button 17 of the hand operation part 16 is turned on to drive the electric blower 7.

  Then, air is sucked together with dust from the tip of the floor brush 22. Then, the air containing the dust becomes a suction air and sequentially passes through the extension pipe 21 and the hose body 15 to be sucked into the main body suction port 14 of the lid body 5. It is sucked into the cylinder part 41 of the part 34.

  Then, relatively light dust contained in the suction air, that is, fine dust, is captured by the net filter 43, and a part of the suction air captured by the fine dust flows into the cup holder 12 from the hole portion.

  Further, the remaining suction air including relatively large dust advances straight in the cylinder portion 41 and flows into the cup portion main body 44 of the cup portion 35.

  Furthermore, the suction air that has flowed into the cup body 44 rotates into a swirl around the inner periphery of the cup body 44 within the cup body 44, and turns into a swirling air. It is dropped into the cup body 44 by centrifugal separation and collected in the cup body 44.

  Further, the suction air swirled in the cup part main body 44 passes through the mesh filter 47 and flows into the cup holding part 12 from the cup part exhaust hole 46.

  The suction air that has flowed into the cup holder 12 is collected by the pleated filter 48 and then sucked into the suction side of the electric blower 7 through the communication hole 27. It passes through and becomes exhaust air, and is exhausted from the exhaust port (not shown) to the outside of the cleaner body 1.

  Next, dust removal control by the control means of the first embodiment will be described with reference to the flowchart shown in FIG.

  First, the control means 61 determines whether or not the electric blower 7 is stopped (step 1). In step 1, when the control means 61 determines that the electric blower 7 is not stopped, the process returns to step 1.

  Further, when the control means 61 determines that the electric blower 7 is stopped in step 1, the control means 61 indicates that the operator sets the setting button 17 corresponding to the stop mode of the electric blower 7, that is, the setting button. It is determined whether or not the 17 off button has been pressed (step 2).

  In step 2, if the control means 61 determines that the off button of the setting button 17 has not been pressed, the process returns to step 2.

  On the other hand, when the control means 61 determines in step 2 that the off button of the setting button 17 has been pressed, the control means 61 drives the dust removal motor 53 to drive the removal means 51 (step 3). ).

  Here, when the dust drop motor 53 is driven, the rotating body 52 rotates via the rotating shaft 57, and the rotation of the rotating body 52 causes the protrusion 56 to move from the recess on the rear side surface of the pleated filter 48 to the recess. When moving to the adjacent concave portion, the removing means 51 vibrates the pleat filter 48 by elastically moving back and forth with respect to the rear side surface of the pleat filter 48, so that dust collected by the pleat filter 48 is collected. Removed from pleated filter 48.

  Then, the control means 61 determines whether or not a predetermined time has elapsed since the start of the driving of the removing means 51 (step 4).

  If the control means 61 determines in step 4 that the predetermined time has not elapsed, the process returns to step 4.

  On the other hand, when the control means 61 determines that the predetermined time has passed in step 4, the control means 61 stops the removal means 51 by stopping the driving of the dust removing motor 53 (step 5), and the step Return to 2. That is, the control means 61 drives the removal means 51 only for a predetermined time. In addition, before the control means 61 determines that the predetermined time has passed in Step 4, that is, during dust removal, when the operator presses the setting button 17 corresponding to the drive mode of the electric blower 7, that is, the electric blower. 7, the control means 61 stops driving the dust removing motor 53 and stops the removing means 51 to stop dust dropping, and corresponds to the driving mode selected by the operator. Then, the electric blower 7 is driven.

  As described above, in the above-described embodiment, when the electric blower 7 is stopped, when the off button of the setting button 17 of the manual operation unit 16 corresponding to the stop mode of the electric blower 7 is pressed, the control means The removal means 51 is driven by 61.

  For this reason, when the electric blower 7 is stopped, the operator presses the off button of the setting button 17 of the hand operation unit 16 provided at hand, so that the control unit 61 can easily remove the unit at any timing. Compared with the conventional case where the removal means is driven each time the electric blower is stopped or the conventional case where the vacuum cleaner body is opened and the lever provided inside is operated. Can be good.

  Further, since the button for driving the removing means 51 is also used as the setting button 17 for selecting the stop mode of the electric blower 7, there is no need to separately provide a button for driving the removing means 51, and the number of parts can be reduced. The increase can be prevented, the manufacturing cost can be suppressed, and the size can be reduced.

  Furthermore, by driving the removing means 51 while the electric blower 7 is stopped, dust can be removed in a state in which dust adheres to the pleated filter 48 due to the suction of the electric blower 7, so that the dust is collected by the pleated filter 48. The dust removing means 51 can surely remove the clogging of the pleat filter 48, and the suction force by the electric blower 7 can be prevented, and the next time the cleaning is started, the pleat filter It is also possible to achieve a state in which clogging of 48 is eliminated, and usability is improved.

  When the operator turns on the electric blower 7 during dust removal, the control means 61 stops driving the dust removal motor 53 and stops the removal means 51 to stop dust removal. In order to drive the electric blower 7 corresponding to the driving mode selected by the operator, the electric blower 7 can be easily driven without an operation of stopping the dust removal even during the dust removal. Usability is improved.

  Moreover, the trouble of removing the pleat filter 48 from the cleaner body 1 and washing it can be reduced, and the operator's hands can be prevented from being soiled.

  Further, the control means 61 can drive the removal means 51 for a predetermined time, so that the removal means 51 can be prevented from being driven for a longer time than necessary, and the operator can stop this without stopping the removal means 51. Since the removing means 51 automatically stops, the usability is improved.

  Next, a second embodiment will be described with reference to FIG. In addition, about the structure and effect similar to the said one Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In the second embodiment, after the control of Step 1 to Step 3 of the first embodiment, the control means 61 determines whether or not the off button of the setting button 17 of the hand operation unit 16 is pressed. (Step 11).

  If the control means 61 determines in step 11 that the off button has not been pressed, the process returns to step 11.

  On the other hand, when the control means 61 determines in step 11 that the off button has been pressed, the control means 61 stops the removal means 51 by stopping the driving of the dust drop motor 53 (step 12). Return to step 2.

  By controlling in this way, the operator can drive the removing means 51 at an arbitrary timing and stop it at an arbitrary timing, so that the usability is improved.

  Further, since the button for driving and stopping the electric blower 7 is also used as the off button of the setting button 17 for selecting the stop mode of the electric blower 7, a button for driving and stopping the removing means 51 is provided separately. There is no need, the increase in the number of parts can be prevented, the manufacturing cost can be suppressed, and the size can be reduced.

  Moreover, since the driving and stopping of the removing means 51 are operated with the same setting button 17 OFF button, the internal configuration and the like can be simplified as compared with the case where the driving and stopping are operated with different buttons.

  In the second embodiment, the button for stopping the removing unit 51 may be another button of the setting button 17.

  Further, in each of the embodiments described above, the removing means 51 is configured such that, for example, a brush that rotates in contact with the front side surface of the pleated filter 48 is rotated by the dust removing motor 53, in addition to the structure in which dust is struck and dropped. Various other configurations are possible, such as a configuration to be made.

  Furthermore, any filter other than the pleat filter 48, such as a filter provided at an exhaust port (not shown), which is located in the air passage 58 of the cleaner body 1, can be used in correspondence with any filter.

  The vacuum cleaner is not limited to the canister type vacuum cleaner, but is an upright type in which the floor brush 22 is directly formed on the lower surface of the vacuum cleaner main body 1. In addition, the vacuum cleaner main body 1 and the floor brush 22 are integrated. Even a self-propelled electric vacuum cleaner, a handy type, or a paper pack type vacuum cleaner having a dust collecting function can be used correspondingly.

It is a longitudinal section showing the vacuum cleaner of a 1st embodiment of the present invention. It is a block diagram which shows a part of vacuum cleaner same as the above. It is a perspective view which shows a vacuum cleaner same as the above. It is a flowchart which shows the control by the control means of a vacuum cleaner same as the above. It is a flowchart which shows the control by the control means of the vacuum cleaner of the 2nd Embodiment of this invention.

Explanation of symbols

1 Vacuum cleaner body 7 Electric blower
16 Hand control section
17 Settings button
48 Pleated filter as filter
51 Removal means
61 Control means

Claims (3)

A vacuum cleaner body containing an electric blower,
A handheld operation unit having a plurality of setting buttons respectively corresponding to the drive mode and stop mode of the electric blower;
A filter that is provided on the suction side of the electric blower and collects dust sucked together with air by driving the electric blower;
Removing means for removing dust collected by the filter from the filter;
And a control means for driving the removing means when the setting button corresponding to the stop mode of the electric blower is pressed while the electric blower is stopped. The electric vacuum cleaner according to claim 1, wherein the control means drives the removing means only for a predetermined time. 3. The electric cleaning according to claim 1, wherein the control unit stops driving of the removing unit when at least one of the setting buttons is pressed while the removing unit is driven. 4. Machine.

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