JP4261554B2 - Electric vacuum cleaner - Google Patents

Description

  The present invention relates to an electric vacuum cleaner having dust removing means for removing dust from a filter provided in a dust collecting unit.

  A vacuum cleaner provided with dust removing means is described in, for example, Japanese Patent Application Laid-Open No. 2005-305015 (Patent Document 1).

  The electric vacuum cleaner shown in Patent Document 1 is provided with a dust collection unit provided with a filter unit for filtering dust.

  The filter unit has a net filter on the upstream side where suction air containing dust flows, and a corrugated filter on the downstream side. It has dust removing means for removing dust by flipping the downstream side surface (back surface) of the wave filter.

JP 2005-305015 A

  In the above vacuum cleaner, the dust filter removes the waveform filter, but does not remove the net filter. Further, dust removal was not always sufficient due to dust that was not removed by flipping the waveform filter, or dust that reattached to the waveform filter during the fall.

  An object of this invention is to provide the vacuum cleaner by which dust removal of a filter part is fully performed in view of said problem.

  The present invention has a dust collection unit, an electric blower, and a cord reel on which an electric cord is unwound and wound freely, and dust in the suction air sucked by the electric blower is applied to the dust collection unit. The filter part which filters is provided, The 1st dust removal means and 2nd dust removal means which remove dust adhering to the said filter part were provided, It is characterized by the above-mentioned.

  The present invention has a dust collection unit, an electric blower, and a cord reel on which an electric cord is unwound and wound freely, and dust in the suction air sucked by the electric blower is applied to the dust collection unit. A first filter for filtering and a second filter for filtering finer fine dust that has passed through the first filter, and removing dust by applying impact vibration to the first filter and the second filter. A dust removing means and a second dust removing means for removing dust by flipping a downstream side surface of the second filter portion through which suction air passes are provided.

  According to the present invention, dust removal is performed by the first dust removing means and the second dust removing means, so that the filter portion is more sufficiently dust removed. The clogging of the filter part is eliminated, and the suction force of the vacuum cleaner is better recovered.

  Embodiments of the present invention will be described with reference to the drawings.

  First, the outline of the vacuum cleaner will be described with reference to FIGS. 1, 2, 3, and 4.

  The vacuum cleaner 1 has a main body case 2. The main body case 2 includes a lower main body case 3 and an upper main body case 4. The dust collection unit 5 is detachably placed inside the front side of the main body case 2.

  The electric blower 6 is placed inside the rear side of the main body case 2. The dust removal unit 7 placed in the main body case 2 is located between the electric blower 6 and the dust collection unit 5.

  As shown in FIG. 4, the cord reel 9 is placed in the main body case 2 alongside the electric blower 6. The cord reel 9 includes a reel 10 and a cord 11 that is wound around the reel 10 so as to be freely unwound.

  The code 11 is released from the reel 10 by being pulled by the user. The winding of the cord 11 is automatically performed by the force of a winding spring (not shown) of the cord reel 9.

  As shown in FIG. 2, the lid 8 is rotatably supported by the upper body case 4. As shown in FIG. 4, a dust collection unit storage portion 53 that stores the dust collection unit 5 is provided inside the main body case 2.

  As shown in FIG. 2, the dust collection unit 5 is taken in and out by opening the lid 8. During the cleaning operation, the lid 8 is closed.

  As shown in FIGS. 7 and 8, the dust collection unit 5 includes a dust collection unit 20 and a filter unit 21.

  The dust collection unit 20 has a cyclone type dust collection chamber and collects light dust and heavy dust separately. Dust that has not been collected by the dust collection unit 20 is collected by the filter unit 21. As shown in FIG. 8, the dust accumulated in the dust collection unit 20 and the filter unit 21 is opened in an L shape so that the upper part of the filter unit 21 is separated from the dust collection unit 20.

  Next, dust collection and dust removal which are the main parts of the present invention will be described.

  First, dust collection will be described mainly with reference to FIGS.

  The filter unit 21 includes a fine net filter 22 (first filter) and a waveform filter 23 (second filter) in which a wave runs vertically.

  The net filter 22 (first filter) collects fine sand dust by filtering. When the circulated suction air sucked by the electric blower 6 passes through the net filter 22 (first filter), fine dust contained in the suction air is filtered.

  The waveform filter 23 (second filter) is a first filter that filters and collects finer dust that has not been filtered. Since the second filter is formed of a non-woven fabric having air permeability and filters even fine dust, the exhaust of the electric vacuum cleaner is extremely clean.

  As shown in FIGS. 11 to 13, the first filter has a first filter frame 220 on the periphery. A first net is formed by stretching a polyester net on the frame 220 of the first filter. The frame portion 220 of the first filter has an annular sealing lip 221 on the outer surface near the outer periphery.

  The thin sealing lip 221 formed of a synthetic resin having the same flexibility as the frame portion 220 of the first filter bends well and functions well as a seal packing.

  As shown in FIGS. 11 and 13, the first filter has a dust discharge hole 222 on the lower side. Dust removed from the waveform filter 23 (second filter) is discharged from the dust discharge hole 222 and accumulated in a pocket 51 provided at the lower portion of the dust collection unit 5.

  As shown in FIGS. 11 to 13, the second filter has a frame 230 of the second filter on the periphery. The frame part 230 of the second filter is formed of a flexible synthetic resin. The synthetic resin frame 230 is formed integrally with the waveform filter 23 (second filter).

  The frame portion 230 of the second filter has an annular sealing lip 231 on the outer surface. The thin sealing lip 231 is formed of a synthetic resin having the same flexibility as that of the frame portion 230, and therefore bends well and functions well as a seal packing.

  The filter part 21 is formed by fitting so that the frame part 220 of the fine net filter 22 (first filter) and the frame part 230 of the waveform filter 23 (second filter) are held together.

  The net surface of the net filter 22 (first filter) and the peak portion of the waveform filter 23 (second filter) are spaced by a few millimeters. Since the net surface of the first filter and the peak of the second filter are separated from each other, the dust removed from the second filter of the corrugated filter placed so that the distance between the waves runs vertically is caught on the way and stopped. Falls to the bottom.

  As shown in FIGS. 11 and 13, the lower end of the waveform filter 23 (second filter) is positioned slightly higher than the lower end of the dust discharge hole 222 of the first filter. Thereby, a small fine dust reservoir 232 is provided below the waveform filter 23 (second filter).

  Dust removed from the waveform filter 23 (second filter) also accumulates in the fine dust reservoir 232. In addition, a part of the dust removed from the net filter 22 (first filter) also accumulates in the fine dust reservoir 232.

  The waveform filter 23 (second filter) has a support shaft 233 for hinges below the frame portion 230. The support shaft 233 is rotatably supported by a hinge support bearing portion 52 provided at a lower portion of the dust collecting portion 20. Thereby, the filter unit 21 is provided to be openable and closable with respect to the dust collecting unit 20.

  When the filter part 21 is closed with respect to the dust collection part 20, the sealing lip 221 of the frame part 220 of the first filter is in close contact with the dust collection part 20, and the dust collection part 20 and the filter part 21 are kept airtight. It is. Thereby, there is no air leak and the suction of dust is performed well.

  The dust collection part 20 of the dust collection unit 5 has a handle 24 as shown in FIGS. The handle 24 has a hook 30 that can be engaged and disengaged in the engagement groove hole 25 of the filter portion 21. The operation of the hook 30 is performed by a push button 26 provided on the handle 24.

  Next, dust removal will be described with reference to FIGS.

  As shown in FIGS. 5 and 6, the dust removal unit 7 has a dust removal unit base 28 and is configured by attaching components related to the dust removal unit base 28.

  The dust removal unit base 28 has a vent 40 for a flow path through which suction air flows. The suction air that has passed through the filter portion 21 of the dust collection unit 5 flows through the vent 40 and is sucked into the electric blower 6.

  On the back side of the dust removal unit base 28, as shown in FIG. The electric blower 6 is attached to the double ring 41 via an airtight seal (not shown). For this reason, the suction air which circulated through the vent 40 is sucked into the electric blower 6 without leakage.

  As shown in FIG. 6, the dust removal unit base 28 has second dust removal means 42 for removing dust from the waveform filter 23 (second filter), as shown in FIG. 6. The second dust removing means 42 includes a circular rotating rod body 420 and a spiral spring 421 (bounce member) provided so as to be wound around the rotating rod body 420.

When the detachable dust collecting unit 5 is attached to the main body case 2, the second dust removing means 42 and the waveform filter 23 (second filter) are placed next to each other. And it arrange | positions so that the spiral spring 421 of the 2nd dust removal means 42 may enter between the waves of the waveform filter 23 (2nd filter) set | placed so that a wave may run vertically.

  The position of the spiral spring 421 is moved by the rotation of the second dust removing means 42, and the reinforcing member 234 provided at the peak of the waveform filter 23 (second filter) is repelled by the spiral spring 421. By this repelling, dust removal of the waveform filter 23 (second filter) is performed. The dust thus removed falls along the wave and accumulates in the fine dust reservoir 232.

  It should be noted that the portion that is bounced by the spiral spring 421 is within the range of [Chile Otoshi Guide] shown in FIG. Here, the peak of the corrugated filter 23 (second filter) is reinforced by a reinforcing member 234 such as polyoxymethylene, and the spiral spring 421 has sufficient strength to withstand abrasion against playing.

  Instead of the spiral spring 421, it is possible to play the top of the waveform filter 23 (second filter) using a flip plate or the like.

  When the dust collection unit 5 is set in the dust collection unit housing portion 53, the sealing lip 231 of the second filter is in close contact with the surface side of the dust removal unit base 28 and is kept airtight. For this reason, the suction air that has passed through the second filter flows through the vent 40 without any leakage and flows to the electric blower 6.

  The 2nd dust removal means 42 has the dust removal gear 43, as shown in FIG. The dust removal gear 43 is attached to the rotating rod 420 so as to be coupled to the end portion, and is provided so as to be positioned on the outer surface on the back side of the dust removal unit base 28.

  The intermediate gear 44 is placed in mesh with the dust removal gear 43 on the lower side. The outer peripheral gear 45 formed on the reel 10 of the cord reel 9 meshes with the intermediate gear 44. The rotation of the cord reel 9 is transmitted to the dust removing gear 43 through the intermediate gear 44, and the second dust removing means 42 is driven.

  The first dust removing means has an impacting body 46 (shown in FIG. 2) provided on the lid 8, an urging spring 47, and a cam 48 (shown in FIG. 5) provided on the dust removing unit base 28.

  As shown in FIGS. 1, 2, 3, and 9, the impact body 46 includes an impact portion 460, a support portion 461 that is rotatably supported by the support bearing portion 49 of the lid body 8, and a cam 48. And a sliding portion 462 that is in sliding contact with the outer periphery. The striking portion 460 is always biased in the striking direction by the biasing spring 47.

  As shown in FIGS. 9 and 13, the frame portion 220 of the first filter has a hit portion 60 that is recessed upward. The filter portion 21 is shaken by hitting the hit portion 60 with the hit portion 460 of the hit body 46, and the filter portion 21 is dedusted.

  As shown in FIG. 5, the cam 48 of the first dust removing means is provided on the cam shaft bar 64 of the first dust removing means. The camshaft bar 64 is rotatably supported by the dust removal unit base 28. Further, the cam shaft bar 64 is provided on the upper side of the second dust removing means 42 and placed on the surface side of the dust removing unit base 28.

  The cam shaft rod 64 has a first belt pulley 61 on the end side where the dust removal gear 43 is located. The rotating rod 420 of the second dust removing means 42 has a second belt pulley 62 on the end side where the dust removing gear 43 is provided. A transmission belt 63 is hung on the first belt pulley 61 and the second belt pulley 62.

  By this transmission belt 63, the first dust removing means and the second dust removing means 42 are connected so that the rotational force is transmitted.

  The first dust removing means includes a cam shaft rod 64, a cam 48, a first belt pulley 61, a striking body 46, and an urging spring 47.

  The first dust removing means, the second belt pulley 62, the transmission belt 63, the dust removing gear 43, and the intermediate gear 44 are disposed outside the flow path through which the suction air flows. For this reason, the rotational force transmission component that transmits these rotational forces is not exposed to the suction air containing dust, does not cause dust adhesion, and maintains good transmission of rotational force. In addition, since the first dust removing means is provided outside the suction air flow path, it is not necessary to provide a seal member, and a reduction in suction work rate due to suction air leakage can be prevented.

  Further, dust does not adhere to the sliding portion 462, the cam 48, the biasing spring 47, and the striking portion 460 of the striking body 46, and the striking operation of the striking body 46 is performed smoothly. Further, the dust adhering to the hitting portion 460 and the hit target portion 60 is not lost by absorbing the impact force caused by the hitting, so that the dust removing action by hitting is maintained without being lost.

The rotational force transmission of the first dust removing means and the second dust removing means by the first belt pulley 61, the second belt pulley 62, and the transmission belt 63 can be changed to a combination of gears. However, as compared with the combination of gears, the rotational force transmission mechanism using the transmission belt 63 has a small amount of protrusion protruding on the upper side surface of the dust removal unit base 28, and as a result, the vacuum cleaner can be made compact.

  Further, the dust removal gear 43 can be directly meshed with the outer peripheral gear 45 of the cord reel 9 without using the intermediate gear 44. However, when the dust removal gear 43 is directly meshed with the outer peripheral gear 45, the outer diameter of the dust removal gear must be increased, so that the outer periphery of the dust removal gear protrudes to the front side of the dust removal unit base 28. In order to suppress this protrusion, an intermediate gear was used. By suppressing the outer periphery of the dust removing gear from protruding, the vacuum cleaner can be made compact as a result.

  Next, the dust removal operation will be described collectively.

  As the cord 11 of the cord reel 9 is unwound, the second dust removing means rotates via the outer peripheral gear 45, the intermediate gear 44, and the dust removing gear 43. At the same time, the rotational force is transmitted to the first dust removing means via the first belt pulley 61, the second belt pulley 62, and the transmission belt 63, and the first dust removing means rotates.

  As the cord reel 9 rotates, the second dust removing means and the first dust removing means operate together to remove dust from the filter unit 21. Since dust removal is performed by the first dust removal means and the second dust removal means, the filter portion is more sufficiently removed. The clogging of the filter part is eliminated, and the suction force of the vacuum cleaner is better recovered.

  The filter unit can be formed of one type of filter including a waveform filter or the like.

  Further, the filter unit includes a first filter that filters dust in the suction air, and a second filter that filters finer fine dust that has passed through the first filter. The first filter and the second filter are dedusted by the impact vibration of the first dust removing means.

  In addition to this, the second filter part that collects finer dust than the first filter removes dust by flipping the downstream side surface with the second dust removing means. Since the second filter is dust-removed by the first dust removing means and the second dust removing means having different dust removal methods, the clogging of the second filter is eliminated and the suction force of the vacuum cleaner is better recovered.

  As described above, the first filter has a configuration in which a polyester net is stretched. The 2nd filter is thicker than the 1st filter which formed the nonwoven fabric in the waveform.

  Since the first filter has a configuration in which a net made of polyester is stretched, dust removal is performed well by the striking vibration of the first dust removing means. Since the second filter is thick and formed of a nonwoven fabric in a corrugated shape, dust floating on the surface of the second filter due to repelling by the second dust removing means is peeled off from the second filter by striking with the first dust removing means. By using these different dust removing means in combination, the thick second filter in which the nonwoven fabric has a corrugated shape is well dust-removed.

  The fine dust adhering in the thick second filter emerges on the surface of the second filter by the repelling by the second dust removing means. There, the impact vibration by the first dust removing means acts, and fine dust is well removed.

  In the first dust removing means, the impacting body 46 is struck by the rotation of the cam 48 to perform dust removal.

  The striking portion 460 of the striking body 46 separated from the striking portion 60 of the first filter against the biasing spring 47 by the rotation of the cam 48 is such that the cam crest of the cam 48 touches the sliding portion 462 of the striking body 46. In this way, the hit portion 60 is hit by the force of the biasing spring 47.

  The hitting by the hitting portion 460 of the hitting portion 60 is performed on the upper peripheral edge of the filter portion 21, so that dust removal is performed better than hitting the lower surface and side surfaces. The first filter has the net filter placed vertically, and the second filter is placed so that the corrugated filter runs vertically between the waves. By tapping the upper part, the dust removed is lowered along the waves. To fall smoothly.

  Further, the hit portion 60 formed in the recess of the frame portion 220 of the first filter is strongly struck by the hit portion 460 as much as the thickness of the synthetic resin is small, so that dust removal is performed well.

  The striking body 46 and the biasing spring 47 are provided on the lid body 8. The striking body 46 and the urging spring 47 can be provided on the filter unit 21 side. The filter unit 21 is combined with the dust collection unit 5. When cleaning the dust collection unit 5, the filter unit 21 is attached and detached together with the dust collection unit 5. By providing the impacting body 46 and the urging spring 47 on the lid body 8, the dust collection unit 5 is not hindered from being attached and detached, and the dust collection unit 5 can be easily cleaned and maintained.

  Although two hitting bodies 46 are provided in the embodiment, one or three or more hitting bodies may be provided.

  In the above embodiment, a pressing spring is used for the biasing spring 47, but a tension spring or a torsion spring can also be used.

It is a longitudinal cross-sectional view of the vacuum cleaner concerning the Example of this invention. It is an external view perspective view of the vacuum cleaner which concerns on the Example of this invention and shows the state which opened the cover body. It is an external view perspective view of the vacuum cleaner which concerns on the Example of this invention and shows the state from which the cover body was removed. It is a perspective view of the vacuum cleaner which concerns on the Example of this invention and removed the upper side main body case, and showed the inside. FIG. 5 is a perspective view showing a dust removal unit from the rear side according to the embodiment of the present invention. FIG. 5 is a perspective view illustrating a dust removal unit from the front according to the embodiment of the present invention. FIG. 4 is an external perspective view of a dust collection unit according to an embodiment of the present invention. FIG. 5 is an external perspective view of a dust collection unit according to an embodiment of the present invention and showing a state in which a filter portion is opened. FIG. 6 is a perspective view of a filter unit that is hit by a hitting body of the first dust removing means according to an embodiment of the present invention. FIG. 4 is a perspective view of a filter portion shown from the waveform filter side according to the embodiment of the present invention. It is a front view of the filter part which concerns on the Example of this invention and was shown from the net filter. FIG. 12 is a cross-sectional view taken along the line AA of FIG. 11 according to the embodiment of the present invention. FIG. 12 is a cross-sectional view taken along the line BB in FIG. 11 according to the embodiment of the present invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Vacuum cleaner, 2 ... Main body case, 3 ... Lower main body case, 4 ... Upper main body case, 5 ... Dust collection unit, 6 ... Electric blower, 7 ... Dust removal unit, 8 ... Cover, 9 ... Cord reel, 10 REEL, 11 ... Electric cord, 20 ... Dust collecting part, 21 ... Filter part, 21 ... Net filter (first filter), 23 ... Wave filter (second filter), 24 ... Handle, 25 ... Engagement slot, 26 ... Operation buttons, 28 ... Dust removal unit base, 28 ... Dust removal unit base, 30 ... Hook, 40 ... Vent, 41 ... Double ring, 42 ... Second dust removal means, 43 ... Dust removal gear, 44 ... Intermediate gear, 45 ... outer peripheral gear, 46 ... impacting body of the first dust removing means, 47 ... biasing spring, 48 ... cam, 49 ... support bearing part, 51 ... pocket, 53 ... bearing part, 53 ... dust collecting unit housing part, 60 ... Struck part, 61 ... 1st belt , 62 ... second belt pulley, 63 ... transmission belt, 64 ... camshaft, 220 ... frame part, 221 ... sealing lip, 222 ... dust discharge hole, 230 ... second filter frame part, 231 ... for sealing Lip, 232 ... fine dust reservoir, 233 ... support shaft, 234 ... reinforcing member, 420 ... rotating rod, 421 ... spiral spring (playing member), 460 ... striking part, 461 ... support part, 462 ... sliding part.

Claims (6)

It has a dust collection unit, an electric blower, and a cord reel that winds an electric cord so that it can be unwound.
The dust collection unit includes a dust collection unit that collects dust in the sucked-in suction air, and a filter unit that filters dust in the suction air sucked by the electric blower,
The electric blower is disposed on the downstream side of the dust collection unit,
A first dust removing means and a second dust removing means for removing dust adhering to the filter portion;
The first dust removing means is disposed outside the flow path through which the suction air flows,
The second dust removing means is disposed on the downstream side surface of the filter portion through which suction air flows,
A main body case composed of a lower main body case and an upper main body case, and a lid body rotatably supported by the main body case;
The first dust removing means has a striking body that applies a striking force to the peripheral edge of the filter part in the lid,
The vacuum cleaner, wherein the second dust removing means has a repelling member that repels a downstream side surface of the filter portion through which suction air passes. A main body case composed of a lower main body case and an upper main body case, a lid body rotatably supported by the main body case, a dust collecting unit, an electric blower, and a cord reel that winds an electric cord so as to be unwound. Have
The dust collection unit includes a dust collection unit that collects dust in the sucked suction air, a first filter that filters dust in the suction air sucked by the electric blower, and a filter that has passed through the first filter. A second filter for filtering fine fine dust,
The electric blower is disposed on the downstream side of the dust collection unit,
The first filter and the first filter have a first dust removing means having a striking body that removes dust by applying striking vibration to the second filter, and a flip to remove dust by flipping a downstream side surface of the second filter through which suction air passes. A vacuum cleaner comprising a second dust removing means having a member. The electric vacuum cleaner according to claim 2,
An electric vacuum cleaner characterized in that a hammering vibration of a first dust removing means is applied to a peripheral portion of the first filter and the second filter. The vacuum cleaner according to claim 1 or 3,
A vacuum cleaner characterized by applying a blow of the first dust removing means to an upper part of the peripheral edge. It has a dust collection unit, an electric blower, and a cord reel that winds an electric cord so that it can be unwound.
The dust collection unit includes a dust collection unit that collects dust in the sucked-in suction air, and a filter unit that filters dust in the suction air sucked by the electric blower,
The electric blower is disposed on the downstream side of the dust collection unit,
A first dust removing means and a second dust removing means for removing dust adhering to the filter portion;
The first dust removing means is disposed outside the flow path through which the suction air flows,
The second dust removing means is disposed on the downstream side surface of the filter portion through which suction air flows,
The vacuum cleaner, wherein the first dust removing means and the second dust removing means are driven by the rotation of the cord reel. In the vacuum cleaner as described in any one of Claims 1-4,
The vacuum cleaner, wherein the first dust removing means and the second dust removing means are driven by the rotation of the cord reel.

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