JP4107171B2 - Electric vacuum cleaner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electric vacuum cleaner having dust removing means for removing dust adhering to the inner surface of a dust collecting portion by vibrating the dust collecting portion.
[0002]
[Prior art]
In a conventional vacuum cleaner having dust removing means for removing dust by oscillating the dust collecting section, the power cord winding mechanism is rotated via a clutch mechanism or the like by pulling out the power cord. It was the thing of the structure which transmits dust removal vibration to a dust filter (for example, refer patent document 1 and patent document 2).
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 57-112840 [Patent Document 2]
Japanese Patent Laid-Open No. 58-65127
[Problems to be solved by the invention]
However, in the conventional vacuum cleaner having the dust removing means for removing dust by oscillating the dust collecting means, the rotation of the power cord winding mechanism by the operation of pulling out the power cord is moved to the removable dust collecting side. In order to reduce the resistance when winding the power cord and improve the winding property, a clutch mechanism that transmits the excitation force to the dust collecting means is necessary only when the power cord is pulled out. There are disadvantages such as being complicated and inferior in tightness of exhaust in the main body.
[0005]
SUMMARY OF THE INVENTION An object of the present invention is to provide a vacuum cleaner provided with dust removal means that can reliably remove dust from a dust collection means with a simplified structure and low cost.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention includes a main body having an electric blower that emits suction air, a primary filter that is disposed on the intake upstream side of the electric blower, and centrifuges coarse dust with a swirling airflow, and the primary filter. a dust collecting unit having a dust collecting filter for collecting fine dust that has passed through the filter, and dust means for performing dust removal of the dust collecting filter, and a driving means for driving the dust removing means by supplying power, the And a closing means for preventing the intake air generated by the electric blower from acting on the dust collecting filter, the dust collecting filter is pleated, and the dust removing means has an arm part and a protruding part, the protrusion is moved by the driving force driving means emits, when the dust of the dust collecting filter by tapping the pleats of the dust collecting filter in order both drive the driving means emits The force, at the same time when the protrusion moves, those the closing means has a configuration for closing the intake, as well as providing a reliable dust removal structure by simplifying the structure, while suppressing the decrease rate of the intake air, suction always higher A vacuum cleaner capable of maintaining the performance continuously can be provided.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The invention of claim 1, wherein the present invention comprises a body having an electric blower which emits suction air is disposed in the intake upstream side of the electric blower, wherein the coarse dust in the whirling air current to the primary filter and centrifuging the primary A dust collection unit having a dust collection filter for collecting fine dust that has passed through the filter, dust removal means for removing dust from the dust collection filter, drive means for driving the dust removal means by supplying power, and and a closure means for the intake air electric blower emitted is prevented from acting on the dust collecting filter, together with the dust collecting filter is pleated, the dust removing means, and a and the projection arm portion, wherein the protrusion is moved by the driving force driving means emitted, performs dust removal of the dust collecting filter by tapping the pleats of the dust collecting filter in order, the driving force of said driving means emits Therefore, at the same time when the protrusion moves, those the closing means has a configuration for closing the intake, as well as providing a reliable dust removal structure by simplifying the structure, while suppressing the decrease rate of the intake air, very high suction performance It is possible to provide a vacuum cleaner that can be maintained continuously. In addition, it is possible to easily remove the dust after the projecting portion hits the pleats of the dust collection filter.
[0008]
【Example】
(Example 1)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
[0009]
FIG. 1 shows the overall configuration of a vacuum cleaner, which has a suction tool 6 for sucking dust attached to an extension pipe 5, and the extension pipe 5 has a hand operating part 2 and a hose connection part 3. The vacuum cleaner main body 1 (hereinafter referred to as the main body 1) is connected to the vacuum cleaner main body 1 through the hose 4. The main body 1 includes one front wheel caster 7 and a pair of rear wheels 8 that are pivotally supported.
[0010]
As shown in FIG. 2, the main body 1 has an electric blower 12 on the rear side, a control circuit 41 mounted with a microprocessor, IC memory, and the like that control driving operations and the like by operation of the hand operation unit 2, and further above Includes a cord reel 11 for winding a power cord 10 for supplying power from a household power source.
[0011]
A dust collection case 18, which is a transparent dust collection unit, is mounted on the front side of the main body 1 so that the inside can be visually observed. Here, when the electric blower 12 is operated, an intake force is generated, and air and dust sucked through the hose 4 pass from the intake port 25 through the ventilation passage 26 of the dust collecting case 18 and are provided with the primary filter 30. In the dust collection case 18, coarse dust is centrifuged by a swirling airflow centered on the primary filter 30, and the fine dust that has passed through the primary filter 30 is captured by the dust collection filter 51 on the rear side, and only air is collected. The air passes through the intake portion 35 behind the filter 51 and passes to the electric blower 12. The air that has passed through the electric blower 12 is discharged from an exhaust port (not shown) provided at the rear or side surface of the main body 1. Next, as shown in FIG. 3, when dust is collected in the dust collecting case 18 and the dust collecting case 18 is discarded, the dust collecting case 18 is first removed from the main body 1. As shown in FIG. 4, the lid 21 of the dust collecting case 18 is opened to discharge the dust.
[0012]
As shown in FIG. 5, the dust collecting filter 51 as a dust collecting means is substantially flat, and the pleat 52 formed by folding a nonwoven fabric or a filter paper in a mountain or valley with respect to the direction of taking out the dust collecting case 18 from the main body 1. Are configured in a substantially vertical direction. In terms of manufacturing, it is possible to arrange the pleat 52 with a substantially parallel direction or an inclination angle with respect to the direction in which the dust collecting case 18 is taken out from the main body 1.
[0013]
FIG. 6 is a view showing a state in which the dust collecting case 18 is removed. Interference that is dust removing means for removing dust by hitting the pleats 52 of the dust collecting filter 51 on the outer peripheral side of the intake portion 35 of the main body 1 and applying vibration. A body 53 is provided so as to protrude from the guide groove 55 of the front wall 54 of the main body 1. The interference body 53 is connected to a shaft of a motor 57 that is a driving unit that is provided with a speed reduction mechanism and is driven by supplying electric power by an arm 38 that is a driving transmission unit.
[0014]
Next, the operation and action of the above configuration will be described.
[0015]
As shown in FIG. 7, the interference body 53 is connected to a shaft of a motor 57 that is a drive unit that is driven by an arm 38 that is a drive transmission unit and that is provided with a speed reduction mechanism and that supplies power. By driving, the interference body 53 moves along the guide groove 55. By this operation, the pleats 52 of the dust collection filter 51 shown in FIG. 5 are sequentially hit and vibrated, whereby fine dust attached to the dust collection surface side of the dust collection filter 51 can be shaken off. If fine dust continues to accumulate on the dust collection filter 51, the airflow resistance increases, that is, the suction performance is lowered and sufficient cleaning performance cannot be achieved. The suction performance can be prevented from deteriorating by shaking off the fine dust adhering to the collecting surface. In FIG. 7, the interference body 53 is configured to perform a reciprocating motion that moves from below to above and returns to the bottom. This operation is controlled by the control circuit 41 shown in FIG.
[0016]
When the operation of the electric blower 12 is started, that is, when the user starts cleaning, the motor 57 is energized for a predetermined time to drive the interference body 53 from below. The dust collecting filter 51 can be dust-removed by moving the interference body 53 downward from above by moving the interference member 53 upward and energizing the motor 57 in the reverse direction.
[0017]
At the same time when the user starts cleaning, the dust collecting filter 51 can be dedusted, the suction performance is restored, and the user can use it with high suction performance.
[0018]
Moreover, as another interference body 53, when operating the electric blower 12 by operation of the hand operation part 2, it can be operated. According to this, after the operation is stopped, dust removal is performed immediately before the dust collected in the dust collection case is discarded, so that all the dust in the dust collection case 18 can be discarded.
[0019]
Furthermore, as another interference body 53 is operated, the dust collection filter 51 can be removed by periodically driving the motor 57 while the electric blower 12 is in operation, that is, while the user is cleaning. . According to this, by performing dust removal operation frequently during cleaning use, the suction performance can be recovered, and a high suction performance can always be obtained.
[0020]
Furthermore, the case where another interference body 53 is operated will be described.
[0021]
When fine dust continues to accumulate on the dust collection filter 51 of the dust collection case 18, the ventilation resistance of the dust collection filter 51 increases, that is, the amount of air sucked into the electric blower 12 decreases. When the amount of air flowing into the electric blower 12 is reduced, the resistance load due to the incoming air of the electric blower 12 is reduced, and the current consumption is reduced. Therefore, when fine dust accumulates on the dust collecting filter 51, the amount of air flowing into the electric blower is reduced, and the current consumption is detected by the control circuit 41 shown in FIG. Thus, the dust collection filter 51 is dedusted to restore the reduced suction performance.
[0022]
In the case of operating the above-mentioned interference body, it is naturally possible to combine the timing of operation by setting the microprocessor or IC memory provided in the control circuit.
[0023]
(Example 2)
Next, a second embodiment of the present invention will be described with reference to FIGS. Note that the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.
[0024]
In FIG. 8, the front wall 54 of the main body 1 is provided with a plurality of vertically-slit intake portions 44 that communicate with the electric blower 12. A guide plate 46 provided on the back surface of the front wall 54 is provided with a blocking plate 46 having a slit-like hole 47 having substantially the same width as the intake portion 44 of the front wall 54 along the surface of the front wall 54 on the electric blower 12 side. The part 62 is held so as to be slidable left and right. Further, a plurality of interference bodies 53 are provided below the shielding plate 46 and protrude from the guide groove 55 of the front wall 54 so as to interfere with the dust collection filter 51. The shielding plate 46 is connected to the arm 66 and the shaft 65. The arm 66 is fixed to the back surface of the front wall 54 by a shaft 49 so as to be rotatable, and is further connected to the shaft 61 by a shaft 50 so as to be rotatable. The shaft 61 is a shaft core of the solenoid 60 that is held and fixed to the main body 1.
[0025]
Next, the operation and action of the above configuration will be described.
[0026]
For example, the case where dust is removed immediately after the user starts operating the electric blower will be described. In FIG. 8, when the solenoid 60 is energized, the shaft 61 is pushed downward. As a result, the right end of the arm 66 connected by the shaft 50 is pushed down and is pivotally fixed to the back surface of the front wall 54, so that it rotates about the shaft 66 and the shielding plate 46 is moved to the right. It will slide in the direction. FIG. 9 shows a state where the solenoid 60 is energized and the shielding plate 46 is moved. At this time, the interfering body 53 is also moved at the same time, and passes over the peak portion of the pleat 52 formed in the vertical direction of the dust collection filter 51, and the pleat 52 is repelled to transmit vibration to the dust collection filter 51 to remove the accumulated dust. can do. Further, the slit-shaped hole 47 of the shielding plate 46 is positioned on the back surface of the lattice portion between the longitudinal slit-shaped intake portion 44 and the intake portion 44 of the front wall 54. It is closed at 46. As a result, at the moment when the interference body 53 strikes the pleat 52 of the dust collection filter 51 and gives vibration, the intake air is blocked to eliminate the flow of air, and the pleat 52 of the dust collection filter 51 is struck. It makes it easier for dust to fall.
[0027]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the vacuum cleaner provided with the dust removal means which can implement | achieve dust removal of a dust collection means reliably by the simplified structure and low cost can be provided.
[Brief description of the drawings]
FIG. 1 is an overall external view of a vacuum cleaner according to a first embodiment of the present invention. FIG. 2 is a side sectional view of the main body of the vacuum cleaner. FIG. ] Operation diagram for dust disposal from the vacuum cleaner case [Fig.5] External view of the vacuum cleaner dust collection case and filter [Fig.6] External view of the vacuum cleaner when the dustcase is detached [Fig. 7] Dust removal operation diagram of the main body of the vacuum cleaner [FIG. 8] Dust removal configuration diagram of the main body showing the second embodiment of the present invention [FIG. 9] Dust removal operation diagram of the main body of the vacuum cleaner ]
12 Electric blower 18 Dust collection case (dust collection part)
21 Lid 38 Arm (drive transmission means)
51 Dust collection filter (Dust collecting means)
52 Pleated 53 Interference (dust removal means)
57 Motor (drive means)

Claims (1)

A main body having an electric blower that emits suction air, a primary filter that is disposed on the intake upstream side of the electric blower and that centrifuges coarse dust with a swirling airflow, and a collection that collects fine dust that has passed through the primary filter A dust collecting unit having a dust filter; dust removing means for removing dust from the dust collecting filter; drive means for driving the dust removing means by supplying electric power; and intake air generated by the electric blower to the dust collecting filter and a closure means for preventing action, together with the dust collecting filter is pleated, the dust removing means, and a and the projection arm, the protrusion by a driving force which the drive unit is emitted move, performs dust removal of the dust collecting filter by tapping the pleats of the dust collecting filter in order, by the driving force of said driving means emits, when the protrusion moves the The electric vacuum cleaner in which the closing means is configured to close the air intake.

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