JP2006006406A - Filter for electric vacuum cleaner, and electric vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a filter for an electric vacuum cleaner which can ensure an area, and at the same time, can easily remove caught dust and dirt. <P>SOLUTION: A plurality of first folding lines 71 which are formed by bending so as to become a zig-zag shape in one direction, and a plurality of second folding lines 72 which are formed by bending so as to become a straight line in the other direction are formed into a filter medium 62. Thus, the surface area of the filter medium 62 can be ensured. At the same time, by providing respective folding lines in two directions which are different from each other, unevenness by the bending of respective folding lines 71 and 72 is prevented from becoming more than necessary, and dust and dirt caught by the filter medium 62 can easily be removed from the filter medium 62. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vacuum cleaner filter that collects dust sucked by an electric blower and a vacuum cleaner including the same.

Conventionally, this type of electric vacuum cleaner includes a vacuum cleaner body that houses an electric blower. A dust collection cup communicating with the suction side of the electric blower is provided in the cleaner body. A filter for a vacuum cleaner that collects fine dust that could not be separated by the dust collecting cup is detachably attached to the dust collecting cup. This vacuum cleaner filter has a filter medium that is formed in a pleated shape in the front-rear direction and has crests and valleys formed in the up-down direction (see, for example, Patent Document 1).
Japanese Patent No. 3490081 (page 3, FIG. 10)

  In recent years, the main body of the vacuum cleaner tends to be downsized. On the other hand, it is necessary to sufficiently secure the size of the dust collecting cup to prevent the cleaning performance from being deteriorated.

  For this reason, it is desired to further secure the surface area of the filter in a relatively small space.

  However, in the above vacuum cleaner filter, when the surface area of the filter medium is increased, the unevenness of the peaks and valleys must be deepened and the pitches of the peaks and valleys must be reduced. In such a case, there is a possibility that dust collected on the filter medium may be trapped in unevenness, and it is not easy to remove these dust from the filter medium.

  This invention is made in view of such a point, and it aims at providing the filter for vacuum cleaners which can ensure the surface area, and can remove the collected dust easily, and a vacuum cleaner provided with the same. To do.

  In the present invention, the filter main body of the vacuum cleaner filter that collects dust sucked in by the electric blower is bent so as to form a lightning bolt along one direction, and in the other direction intersecting this one direction A plurality of first fold lines provided in parallel to each other so as to alternate between the valleys and valleys are formed so as to be linear along the other direction, and the valleys alternate in the one direction, and the first A plurality of partition portions partitioned into parallelograms of substantially the same shape by a plurality of second fold lines provided in parallel to each other so as to alternate between peaks and valleys every time it crosses one fold line, The partition portion is formed by being folded in advance so as to be symmetric with respect to either one of the first fold line and the second fold line.

  According to the present invention, a plurality of first fold lines formed to be lightning-shaped along one direction and parallel to each other, and a plurality of first fold lines formed to be linear along the other direction. By forming two fold lines in the filter body, the surface area can be secured, and by providing each fold line in two different directions, the unevenness caused by folding at each fold line is prevented from becoming larger than necessary. Thus, the dust collected by the filter body can be easily removed from the filter body.

  Hereinafter, the configuration of an embodiment of the present invention will be described with reference to FIGS.

  In FIG. 5, reference numeral 1 denotes a cleaner body, and an electric blower 2 is accommodated in the cleaner body 1. The vacuum cleaner body 1 is a so-called canister type vacuum cleaner, and captures and collects the dust sucked together with the intake air generated by driving the electric blower 2.

  The vacuum cleaner main body 1 has a main body case 5 including a case body 3 and a lid body 4 that is attached to the upper portion of the case body 3 so that the rear portion is connected and the upper portion is releasably covered by rotation. ing. Further, the main body case 5 is provided with a cup holding portion 6 whose upper portion is covered with the lid body 4. The cup holder 6 is detachably provided with a dust cup 7 as a dust collector.

  Furthermore, as shown in FIG. 3, the swivel wheel 8 is turnably and rotatably attached to the lower part of the cup holding part 6. Further, a pair of traveling wheels 9 are rotatably attached to both side portions of the main body case 5.

  Further, on the front side of the lid 4 of the main body case 5, a main body suction port 11 communicating with the dust collection cup 7 is opened forward. As shown in FIG. 5, a hose body 13 is connected to the main body suction port 11 as an elongated substantially cylindrical connecting pipe that is flexible and can be bent. At the tip of the hose body 13, a hand operating unit 15 that can select an operation mode of the electric blower 2 is provided.

  In addition, the hand operating unit 15 is provided with a plurality of setting buttons 16 for setting the driving state of the electric blower 2 and the like in the cleaner body 1 to a predetermined state. A gripping portion 21 that protrudes from the proximal end side. In addition, a telescopic elongated cylindrical extension tube 22 is detachably connected to the distal end of the hand operating section 15. Further, a floor brush 23 that is placed on a carpet on the floor surface of the room, for example, and sucks dust on the carpet is detachably connected to the tip of the extension pipe 22.

  In the case body 3, a not-shown fan chamber containing the electric blower 2 and a not-shown reel chamber containing a cord reel 25 wound with a power cord 24 for supplying electric power from the commercial AC power source to the electric blower 2 and the like. And are partitioned.

  The cord reel 25 is rotatably provided in the reel chamber and is urged in the winding direction of the power cord 24 by, for example, a mainspring spring.

  In addition, a handle 26 that allows the cleaner body 1 to be carried is provided above the case body 3 and behind the lid body 4. The handle 26 is connected to a brake device (not shown) provided inside the case body 3. Here, this brake device fixes the rotation of the cord reel 25. And the handle | steering-wheel 26 is rotated in the winding direction of the power cord 24 by canceling | releasing fixation of the rotation of the cord reel 25 by a brake device by pushing down below which is the inner side of the cleaner body 1. It is possible to operate.

  Further, a plurality of exhaust holes 27 communicating with the downstream side of the electric blower 2 are formed in the side portion of the case body 3.

  As shown in FIG. 3, the dust collection cup 7 includes a dust collection cup body 31 as a dust collection section body, and a filter section 32 as a vacuum cleaner filter provided detachably on the dust collection cup body 31. I have.

  The dust collecting cup main body 31 has an outer wall portion 35 that forms the outer peripheral surface of the dust collecting cup main body 31, a separated dust collecting portion 36 provided inside the outer wall portion 35, and a dust collecting cup 7 held by an operator. A dust collecting cup handle portion 37 is provided, and a space portion 38 is formed outside the separated dust collecting portion 36 in the outer wall portion 35.

  The outer wall portion 35 is continuous from the front side of the dust collection cup 7 to the upper side and both side portions. Further, the outer wall portion 35 is formed with an opening 39 at the rear end portion, which is connected to the suction side of the electric blower 2 and to which the filter portion 32 is detachably attached.

  The separated dust collecting portion 36 includes a dust separating portion 41 communicating with the main body suction port 11 and a bottomed cylindrical first dust collecting portion 42 communicating with the downstream side of the dust separating portion 41.

  The dust separating unit 41 separates dust sucked together with air by driving the electric blower 2 and collects a part of the dust. The dust separating unit 41 is provided to reduce the diameter to the downstream side. A cylindrical reduced diameter portion 45 and a pipe-like cylindrical portion 46 communicating with the downstream side of the reduced diameter portion 45 and the upstream side of the first dust collecting portion 42 are provided.

  The reduced diameter portion 45 is for separating the dust sucked from the main body suction port 11 against the cylinder portion 46 and separating the dust from the air, and a plurality of rectangular through holes 47 communicating with the space portion 38 are formed. Has been. These through holes 47 are spaced apart from each other in the circumferential direction of the reduced diameter portion 45. Each of the through holes 47 is provided with a mesh-like separator filter 48 that collects dust from the passing air.

  The cylindrical portion 46 is formed to be bent in an L shape from the reduced diameter portion 45 to the first dust collecting portion 42. Further, a wall portion 49 for turning air along the tangential direction in the first dust collecting portion 42 is formed at the lower end portion of the cylindrical portion 46.

  The first dust collecting unit 42 serves as a main dust collecting unit that performs cyclone separation of dust contained in the air that has passed through the dust separating unit 41. In addition, an upper side wall portion 51 that closes the upper portion of the first dust collecting portion 42 is formed above the first dust collecting portion 42 and below the reduced diameter portion 45. A communication hole 52 that communicates the downstream side of the first dust collecting part 42 and the space part 38 is formed. A mesh-shaped dust collector filter 53 is attached to the communication hole 52.

  Further, an auxiliary second dust collecting portion 55 that collects fine dust is formed in the rear portion that is the downstream side of the first dust collecting portion 42. The second dust collecting portion 55 is divided into a plurality of ribs 56 that are located at the edge of the lower end portion of the opening 39 and are spaced apart in the width direction.

  A lower lid 57 that can open and close the lower portions of the dust collecting portions 42 and 55 is provided at the lower portions of the dust collecting portions 42 and 55 so as to be rotatable in the front-rear direction.

  The dust cup handle portion 37 is located below the main body suction port 11 with the dust cup 7 attached to the cup holding portion 6. The dust cup handle portion 37 is provided with an operation button (not shown) for opening and closing the lower lid 57.

  On the other hand, as shown in FIG. 1, the filter portion 32 has a resin frame 61 as a holding member and a filter medium 62 as a filter body provided on the frame 61, and is attached to and detached from the opening 39. It is attached so as to close the entire opening 39.

  The frame 61 is formed in a frame shape surrounding the periphery of the filter medium 62. In addition, an inclined surface 65 inclined downward to the filter medium 62 is provided at the lower end portion of the frame body 61. The inclined surface 65 is inclined downward from the downstream side to the upstream side, and guides the dust falling from the filter medium 62 to the second dust collecting portion 55. Further, a seal packing 66 for closing a gap between the filter part 32 and the edge part of the opening part 39 is attached to the frame body 61.

  As shown in FIGS. 1 and 2, the filter medium 62 is formed in a square shape in plan view and is folded by so-called Miura folding. That is, in the filter medium 62, a plurality of first fold lines 71 extending along the longitudinal direction shown in FIG. 2 which is one direction are formed in a lateral direction, and the other direction intersecting with the first fold lines 71 is formed. A plurality of second fold line portions 72 extending in the horizontal direction shown in FIG. 2 are bent in the vertical direction, and each of the fold line portions 71 and 72 forms a plurality of parallelogram-shaped partition portions 73. It is formed throughout.

  Each first fold line 71 is formed so as to be lightning-shaped along the vertical direction shown in FIG. 2, that is, alternately zigzag in the horizontal direction shown in FIG. Are formed in parallel with each other. The first folding lines 71 are formed so that the filter crests 71a and the filter troughs 71b alternate in the horizontal direction shown in FIG.

  The second folding lines 72 are formed in a straight line along the horizontal direction shown in FIG. 2, and are spaced apart from each other at substantially equal intervals in the vertical direction shown in FIG. The second fold lines 72 are alternately formed with filter crests 72a and filter troughs 72b each time they intersect the first fold line 71, and in the vertical direction shown in FIG. 72a and filter troughs 72b are formed alternately.

  Each second fold line 72 has a filter crest 72a between the filter crest 71a of each first fold line 71 and the part of the filter trough 71b that is bent to the left as shown in FIG. Filter troughs 72b are located between the portions of the first fold lines 71 that are bent to the right side of the filter crests 71a and the filter troughs 71b shown in FIG.

  The partition portion 73 is formed by the first fold line 71 and the second fold line 72 to have substantially the same shape, and a pair of diagonals having an angle α ° and a pair of diagonals having an angle (180−α) °, respectively. And have. Further, these partition portions 73 are adjacent to each other so as to have the same shape in the horizontal direction shown in FIG. 2, and in the vertical direction shown in FIG. Is formed. In other words, the partition part 73 has an angle α ° and an angle (180−α) ° adjacent to each other in the horizontal direction shown in FIG. 2 and an angle α ° in the vertical direction shown in FIG. The corners and the corners having an angle of (180−α) ° are alternately adjacent to each other.

  The filter medium 62 is attached to the frame body 61 so that the first fold line 71 extends in the vertical direction, in other words, the first fold line 71 has a vertical component. That is, in the filter medium 62, each filter crest 71a and each filter trough 71b are formed along the vertical direction.

  The filter medium 62 is a degrading substance 74 such as a photocatalyst or catechin, a deodorizing substance such as activated carbon, a negative ion generating substance that inactivates a predetermined allergen, or a protein degrading enzyme that decomposes dead bodies of mites. It is formed of a member impregnated with an allergen-inactivating substance 75 such as

  The filter medium 62 may be applied with a deodorizing substance 74 or an allergen inactivating substance 75.

  Further, a dust removing device 76 that hits and removes dust collected by the filter unit 32 is installed downstream of the filter unit 32 and upstream of the electric blower 2.

  The dust removing device 76 is rotated when the power cord 24 is wound around the cord reel 25, and has a large-diameter gear 81 and rotational force transmitting means 82 for transmitting the rotational force of the cord reel 25 to the gear 81. And.

  The gear 81 includes a substantially cylindrical center tube portion 85, a plurality of arm portions 86 projecting from the center tube portion 85 in the radial direction, and a gear portion integrally provided at the distal ends of the arm portions 86. 87 and a projection 88 provided on one arm portion 86.

  The central cylinder 85 is the center of rotation of the gear 81 and is rotatably supported by a grid-like plate (not shown) provided on the upstream side of the electric blower 2.

  The arm portions 86 are provided at substantially equal angles to each other in the circumferential direction of the gear 81, and project radially from the central cylinder portion 85, respectively. Further, a reinforcing portion 89 that connects and reinforces these arm portions 86 is provided coaxially with the central tube portion 85 at the center portion of the arm portion 86.

  The gear portion 87 is an outer peripheral surface of the gear 81, is provided in a cylindrical shape coaxial with the central cylinder portion 85, and is integrated with the distal end portion of the arm portion 86. In other words, the arm portion 86 is constructed between the central cylinder portion 85 and the gear portion 87. The gear portion 87 is meshed with the rotational force transmitting means 82.

  The protrusion 88 is integrally provided at the intersection of one arm part 86 and the reinforcing part 89, protrudes to the front side that is the filter part 32 side, and is urged toward the filter part 32. The protrusion 88 is shallowly engaged with the filter crest portions 71a and 72a of the filter medium 62 or the downstream side of the filter trough portions 71b and 72b.

  Further, the rotational force transmitting means 82 includes small-diameter pinions 91 and 92, a rotating shaft 93 that connects the pinions 91 and 92 coaxially, and a one-way clutch 94 provided on the rotating shaft 93.

  The pinion 91 is provided in parallel with the gear 81 and meshes with the gear portion 87 of the gear 81.

  The pinion 92 is spaced in parallel to the pinion 91 and meshed with a reel gear portion 95 provided on the cord reel 25.

  Further, the one-way clutch 94 transmits the rotation of the pinion 92 to the pinion 91 via the rotating shaft 93 only when the pinion 92 is rotated by the rotation of the cord reel 25 when the power cord 24 is wound around the cord reel 25. When the pin reel 92 is rotated by the rotation of the cord reel 25 when the power cord 24 is pulled out from the cord reel 25, the pinion 92 is idled with respect to the rotating shaft 93.

  Next, the operation of the above embodiment will be described.

  First, the operator attaches the filter part 32 to the opening 39 of the dust collecting cup 7, attaches the dust collecting cup 7 to the cup holding part 6, and then closes the lid 4.

  Thereafter, the hose body 13, the extension pipe 22, and the floor brush 23 are connected to the main body suction port 11 in order.

  Further, the operator pulls out the power cord 24 from the cord reel 25, connects it to an outlet (not shown) provided on the wall surface, etc., grips the gripping portion 21, operates the predetermined setting button 16, and sets the electric blower 2 to a predetermined level. In this driving mode, the floor brush 23 placed on the floor surface is operated back and forth to suck the dust on the floor surface together with air from the tip of the floor brush 23.

  The air sucked from the floor brush 23 becomes a sucking air, and the sucking air passes through the extension tube 22, the hose body 13 and the main body suction port 11 together with the dust in order with the air and flows into the dust collecting cup 7.

  Then, the relatively light dust is collected by the separation part filter 48 along the flow of the suction air passing through the through hole 47 of the reduced diameter part 45 without going straight in the separation dust collecting part 36.

  On the other hand, the relatively heavy dust travels straight along the reduced diameter portion 45 together with the suction air, passes through the cylindrical portion 46, and then flows into the first dust collecting portion 42 along the wall portion 49. The first dust collecting portion The cyclone is separated in 42 and collected in the first dust collecting part 42. At this time, the suction air flowing into the first dust collecting portion 42 passes through the dust collecting portion filter 53 and then flows into the space portion 38.

  When the suction air flowing into the space 38 passes through the filter medium 62 of the filter unit 32, fine dust that could not be collected by the first dust collecting unit 42 is captured and flows into the electric blower 2 and then exhausted. The air is exhausted from the exhaust hole 27 to the outside of the cleaner body 1.

  When the cleaning is completed, the power cord 24 is removed from the outlet, and the operator pushes the handle 26 so that the brake device releases the fixing of the cord reel 25, and the cord reel 25 biased by the mainspring spring or the like becomes the power cord 24. The power cord 24 is wound by rotating in the winding direction.

  At this time, as the cord reel 25 rotates, the pinion 92 that meshes with the reel gear portion 95 rotates. By the action of the one-way clutch 94, the rotation of the pinion 92 is transmitted to the pinion 91 via the rotating shaft 93. As the pinion 91 rotates, the gear 81 in which the gear portion 87 meshes with the pinion 91 rotates.

  Then, the protrusion 88 elastically contacts the downstream side of the filter medium 62 of the filter portion 32, so that the protrusion 88 is sequentially applied to each filter peak 71a, 72a and each filter valley 71b, 72b as the gear 81 rotates. It collides and strikes the filter medium 62 from the downstream side to give vibration, and dust collected on the filter medium 62 is knocked down.

  The knocked-down dust falls under the filter medium 62 by its own weight, and is guided and collected in the second dust collecting section 55 along the inclined surface 65.

  When dust of a predetermined amount or more accumulates in each of the dust collecting portions 42 and 55, the lid 4 is opened, the dust collecting cup 7 is removed from the cup holding portion 6, and the operation button of the dust collecting cup handle portion 37 is operated. To open the lower lid 57, discard the dust collected in each of the dust collecting portions 42, 55, and then attach the dust collecting cup 7 with the lower lid 57 closed to the cup holding portion 6 again to close the lid. 4 is closed.

  As described above, in the one embodiment, a plurality of first fold lines 71 formed to be lightning-shaped along one direction, and another direction different from the fold direction of the first fold line 71. The filter medium 62 is formed with a plurality of second fold lines 72 that are bent so as to be linear along the line.

  As a result, the fold lines 71 and 72 enable the surface area of the filter medium 62 to be expanded in two different directions without increasing the area in plan view, for example, a pleat shape that bends the filter medium only in one direction, or Compared with a corrugated shape, the surface area can be secured, and space can be saved when securing the same area as a conventional filter medium.

  At the same time, the filter medium can be used without reducing the pitch of each fold line 71, 72 compared to the conventional filter medium or increasing the depth of unevenness caused by folding at each fold line 71, 72 compared to the conventional filter medium. Since the surface area 62 can be secured, the dust collected by the filter medium 62 can be prevented from clogging the filter crest portions 71a and 72a or the filter trough portions 71b and 72b, and the dust can be easily removed from the filter medium 62. In particular, this effect is significant when the filter medium 62 has a surface area comparable to that of the conventional filter medium without changing the area in plan view.

  Furthermore, by forming each fold line 71, 72 in two directions, when the dust remover 76 knocks down the dust collected on the filter medium 62 by rotation, the fold line 71, 72 protrudes into one of the fold lines 71, 72. The movement directions of 88 always cross each other, and the protrusion 88 constantly collides with each filter crest 71a, 72a or each filter trough 71b, 72b during rotation of the dust removing device 76, and gives vibration to the filter medium 62. For this reason, for example, when the projection 88 is moving along the pleat direction, the filter media 62 can be struck with dust more efficiently than the conventional pleated filter in which the projection 88 cannot easily vibrate the filter media. I can drop it.

  In addition, by disposing the filter unit 32 so that the first fold line 71 of the filter medium 62 is continuous in the vertical direction, the dust struck from the filter medium 62 by the dust removing device 76 is removed from the first fold line. 71 falls smoothly along the filter trough 71b and is collected in the second dust collecting portion 55. For example, when the first folding line 71 is arranged in the left-right direction, etc. As compared with, dust can be more easily removed from the filter medium 62.

  For this reason, the filter medium 62 is not easily clogged, and the reduction in the suction force of the electric blower 2 due to the clogging of the filter medium 62 can be suppressed, the suction force by the electric blower 2 is maintained for a long time, and the filter medium 62 is frequently used. Since there is no need for replacement, maintenance becomes easy and usability can be improved.

  Further, by containing the deodorizing substance 74 in the filter medium 62, bad odors and the like generated from the dust collected by the filter medium 62 are exhausted outside the cleaner body 1 on the air passing through the filter medium 62. It is possible to prevent a foul odor from being trapped in the dust collecting cup 7 during non-cleaning.

  Similarly, the allergen deactivating substance 75 that inactivates the allergen is included in the filter medium 62, so that allergens that may cause allergies to workers on the exhaust exhausted from the cleaner body 1 are removed from the cleaner body. 1 can be prevented from spreading outside.

  In addition, the filter medium 62 is folded into Miura to secure the surface area, so that the filter medium 62 can contain a larger amount of the deodorizing substance 74 and the allergen inactivating substance 75 than in the prior art. In addition, the effect of the allergen inactivating substance 75 can be improved.

  In the above-described embodiment, each of the folding lines 71 and 72 is formed by bending one side in a straight line along one direction and bending the other in a direction intersecting the other. It can be folded in direction and angle.

  Further, the number of the folding lines 71 and 72 is arbitrarily set according to the desired surface area of the filter medium 62.

  Further, the filter medium 62 may be configured to include or apply a deodorizing substance instead of the deodorizing substance 74, or include or apply the deodorizing substance 74 and the deodorizing substance.

  And the detail of a vacuum cleaner is not limited to the said structure.

It is a perspective view which shows the filter for vacuum cleaners of one embodiment of this invention. It is a top view which shows the filter medium of the filter for vacuum cleaners same as the above. It is a side view which notches and shows a part of vacuum cleaner provided with the filter for vacuum cleaners same as the above. It is a perspective view 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.

Explanation of symbols

2 Electric blower
32 Filter as a vacuum cleaner filter
61 Frame as holding member
62 Filter media as filter body
71 First fold line
72 Second fold line
73 compartment
74 Deodorant
75 Allergen inactivating substance

Claims (5)

A vacuum cleaner filter that is disposed upstream of the electric blower and collects dust sucked in by the electric blower,
A filter body;
A holding member for holding the filter body,
The filter body is
A plurality of first fold lines that are formed so as to be lightning-shaped along one direction, and are provided in parallel to each other so as to alternate in the other direction intersecting this one direction, and in the other direction A plurality of second portions provided in parallel with each other so as to alternate with peaks and valleys in the one direction and alternate with peaks and valleys every time the first fold line is intersected. A plurality of partition portions partitioned into substantially parallel parallelograms, and these partition portions are line-symmetric with respect to either the first fold line or the second fold line. A filter for a vacuum cleaner, which is formed by being folded in advance as described above. The filter main body filter according to claim 1, wherein the filter main body has first fold lines arranged continuously in the vertical direction. The filter main body filter according to claim 1 or 2, wherein the filter body has at least one of a deodorizing substance and a deodorizing substance. The filter body according to any one of claims 1 to 3, wherein the filter main body includes an allergen-inactivating substance that inactivates the allergen. A vacuum cleaner comprising the vacuum cleaner filter according to any one of claims 1 to 4.

Images