JP2005218512A - Vacuum cleaner and dust collector thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dust collecting cup surely removing dust collected in a filter from the filter. <P>SOLUTION: When the pleated filter 51 which collects the dust passing through a dust collecting cup body 35 is removed from the dust collecting cup body 35, the dust collected by the filter 51 is scraped by a projecting part 55 fitted in the upstream side of the filter 51 with the filter 51 attached to the dust collecting cup body 35, to be surely removed from the filter 51. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a dust collector for a vacuum cleaner that collects sucked dust and a vacuum cleaner including the dust collector.

Conventionally, this type of vacuum cleaner includes a vacuum cleaner body that houses an electric blower. In this cleaner body, a dust collector that collects dust sucked together with air by driving an electric blower is provided. The dust collector includes a dust collection cup body having an intake port and an exhaust port. In the dust collection cup, there is provided a dust separating portion that communicates with the air inlet and separates dust from the air sucked from the air inlet. Further, in the dust collection cup, there is provided a dust collection part for collecting the dust separated by the dust separation part. Further, the dust collecting cup is detachably provided with a pleated filter that collects dust from the air that has passed through the dust separator. This filter is provided with the exhaust port closed. On the downstream side of the filter, there is provided a dust removing unit that applies an impact to the filter to drop dust adhering to the filter and eliminate clogging of the filter (see, for example, Patent Document 1). ).
Japanese Patent No. 3461824 (page 3-5, FIG. 5)

  However, the above vacuum cleaner has a problem that, for example, dust that contains moisture and has high adhesiveness, or accumulated fine fibrous fine dust is difficult to be removed from the filter even if the dust removing unit is operated. doing.

  This invention is made in view of such a point, and it aims at providing the dust collector of the vacuum cleaner which can remove reliably the dust collected by the filter from a filter, and a vacuum cleaner provided with the same And

  The present invention relates to a pleated filter that is detachably provided on a dust collector main body that collects a part of sucked dust, and that collects dust that passes through the dust collector main body, and the filter to the dust collector. It is fitted with the upstream side of the filter in a state of being attached to the main body, and further includes a dust removing unit that scrapes off dust collected by the filter when the filter is removed from the dust collecting unit main body.

  According to the present invention, a pleated filter that collects dust passing through the dust collector main body is attached to the dust collector main body, and the dust removing unit fitted on the upstream side of the filter collects the filter. The removed dust can be reliably removed from the filter by scraping it off when removing the filter from the dust collector main body.

  Hereinafter, the structure of the vacuum cleaner of the 1st Embodiment of this invention is demonstrated with reference to FIG. 1 thru | or FIG.

  4 and 5, reference numeral 1 denotes a vacuum cleaner body. The vacuum cleaner body 1 is a vacuum cleaner that collects dust contained in the sucked-in air by inertia separation. The vacuum cleaner body 1 includes a lower case 2, a middle case (not shown) attached to the upper side of the lower case 2, an upper case 4 attached to the lower case 2 and the middle case by closing the rear portion of the middle case. And the main body case 6 provided with the cover body 5 which covers the front upper part of a middle case so that opening and closing is possible. Further, an electric blower 7 is accommodated between the middle case 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. As shown in FIG. 5, the base end of a flexible hose body 15 is connected to the main body suction port 14 so as to be detachable. A hand operation unit 16 capable of selecting an operation mode of the electric blower 7 is provided at the tip of the hose body 15. The hand operating unit 16 is provided with a plurality of setting buttons 17 for setting the driving state of the electric blower 7 and the like in the cleaner body 1 to a predetermined state, and a grip that an operator grips when cleaning. The part 18 protrudes from the proximal end side. In addition, an elongated, substantially cylindrical extension tube 21 that can be expanded and contracted is detachably connected to the distal end of the hand operation unit 16. Furthermore, a floor brush 22 serving as a suction port for sucking dust on the carpet is detachably connected to the tip of the extension pipe 21, for example, installed on a carpet on the floor of the room. .

  As shown in FIG. 4, a cord reel 24 is accommodated between the lower case 2 and the upper case 4 in a cord reel chamber (not shown) partitioned by the middle case. The cord reel 24 is wound with a power cord (not shown) for supplying power for driving the electric blower 7 from the outside. The power cord is led out from a cord port (not shown) provided at the rear portion of the lower case 2 so as to be drawn out of the main body case 6. Furthermore, a plug portion (not shown) that is detachably inserted into an outlet (not shown) provided on a wall surface or the like is provided at the tip of the power cord.

  A plurality of exhaust holes 25 are formed in the side part of the main body case 6.

  Further, the electric blower 7 has a suction port 26 and an exhaust port 27, and exhausts air sucked from the suction port 26 from the exhaust port 27.

  The cup holder 12 is provided with a dust collection cup 33 as a dust collector. The dust collection cup 33 includes a dust collection cup body 35 as a dust collection section body, and a filter section 36 that is detachably provided on the dust collection cup body 35.

  The dust collection cup main body 35 is provided by, for example, resin, and as shown in FIGS. 1 and 4, as shown in FIGS. 1 and 4, the outer wall portion 41, the communication cylinder portion 42 protruding forward of the outer wall portion 41, In addition, an inner wall portion 43 provided inside the outer wall portion 41 and a handle portion 44 that enables the operator to grip the dust collection cup 33 are provided.

  The outer wall portion 41 forms the outer peripheral surface of the dust collection cup body 35, and is continuous from the front side of the dust collection cup 33 to the upper side and both side portions. Further, the outer wall portion 41 has an upper portion whose diameter is increased rearward, and an opening portion 45 communicating with the suction port 26 on the suction side of the electric blower 7 is formed in the rear end portion.

  The communicating cylinder part 42 is provided in a pipe shape and protrudes horizontally toward the front at a position closer to the upper side of the dust collection cup 33. The communication cylinder portion 42 communicates with the main body suction port 14 on the suction side, that is, on the upstream side, in a state of being attached to the cup holding portion 12.

  The inner wall portion 43 includes a dust separation portion 46 located on the downstream side of the communication cylinder portion 42 and a lower inner wall portion 47 provided downward from the lower end portion of the dust separation portion 46.

  The dust separation unit 46 separates dust sucked together with air from the communication cylinder part 42 from the air and collects a part of the dust. The dust separation part 46 collects a part of the dust from the outer wall part 41 around the communication cylinder part 42. A substantially semi-cylindrical diameter-reduced portion 46a provided so as to reduce the diameter toward the downstream side along the axial direction of 42, and a blocking wall portion 46b for closing the downstream end portion of the diameter-reduced portion 46a. Prepared and bent downwards.

  The diameter-reduced portion 46a is to squeeze the air sucked from the communicating cylinder portion 42 into the closed wall portion 46b and collide with it to separate the dust from the air, and the rectangular through hole 46c communicating with the opening 45 is provided. A plurality of holes are formed. These through holes 46c are separated from each other in the circumferential direction of the reduced diameter portion 46a. The through-holes 46c are provided with a mesh-like separation part filter 46d that collects dust from the passing air.

  The lower inner wall portion 47 is provided so as to expand downward from the lower end portion of the blocking wall portion 46b of the dust separation portion 46 to the outer wall portion 41. Below the dust separation portion 46, the dust separation portion 46 is provided. A dust collection portion 48 that collects the dust separated in (1) is defined.

  Here, the dust collection portion 48 includes a first dust collection portion 48a located in front of the lower inner wall portion 47 and a second dust collection portion 48b located in the rear of the lower inner wall portion 47. ing.

  The first dust collection part 48a is provided from the lower part of the dust separation part 46 to the lower end part of the dust collection cup body 35, and is formed wider than the second dust collection part 48b.

  The second dust collecting portion 48b is located on the upstream side of the lower end portion of the opening 45, and is divided into a plurality of ribs 48c spaced apart in the width direction.

  In addition, a rear through hole 47 a communicating with the opening 45 is formed in the rear portion of the lower inner wall portion 47. The rear through-hole 47a is provided with a mesh-shaped dust collecting part filter 47b that collects dust from the passing air. Furthermore, side through holes 47 c communicating with the opening 45 are formed in both side portions of the lower inner wall portion 47. The side through hole 47c is provided with a mesh side filter 47d that collects dust from the passing air.

  A lower lid portion 49 that can open and close the lower portions of the first dust collection portion 48a and the second dust collection portion 48b of the dust collection portion 48 is rotatably provided at the lower portion of the dust collection portion 48. ing.

  The handle portion 44 is located below the main body suction port 14 with the dust collection cup 33 attached to the cup holding portion 12. The handle portion 44 is provided with an operation button (not shown) for opening and closing the lower lid portion 49.

  As shown in FIGS. 1 and 4, the filter unit 36 includes a filter 51 and a mounting frame body 52 that holds the filter 51, and is detachably attached to the opening 45. Block the whole.

  The filter 51 collects fine dust contained in the air that has passed through the filters 46d, 47b, and 47d of the dust collection cup body 35, and is formed of a member such as paper. In addition, in order to increase the surface area, the filter 51 is formed with filter crests 51a and filter troughs 51b alternately in the front-rear direction of the cleaner body 1, and the filter crests 51a and the filter troughs 51b are wide. A plurality of pleats are formed adjacent to each other and folded in a pleat shape. For this reason, the filter 51 can be elastically deformed in the width direction. Further, the surface of the filter 51 is fluorine-coded. In the filter valley 51b of the filter 51, with the filter portion 36 attached to the dust collection cup body 35, the upstream of the convex portion 55 as the dust removal portion provided on the upper portion of the dust collection cup body 35 and the upstream side. The sides are mated.

  Here, the convex portion 55 is formed by cutting the upper edge of the opening 45 of the dust collection cup body 35 in a zigzag shape in the front-rear direction by a plurality of acute-angled notches 55a toward the front direction. Yes. Accordingly, these convex portions 55 are formed in an acute angle toward the rear of the cleaner body 1. Further, these convex portions 55 are formed over a width that overlaps the entire width direction of the filter 51, match the shape of all the filter valley portions 51b of the filter 51, and are slightly wider than these filter valley portions 51b. Has been. At the same time, the notch 55a matches the shape of all the filter crests 51a of the filter 51. For this reason, in the state in which the filter portion 36 is attached to the dust collection cup body 35, the protrusions 55 abut the filter trough portion 51b of the filter 51 slightly in the width direction and abut on the upstream side of the filter 51. Abut against the side without any gap. Further, as shown in FIG. 2, the surface of the tips of these convex portions 55 has been subjected to squeezing.

  On the other hand, as shown in FIGS. 1 and 4, the attachment frame 52 is formed in a frame shape surrounding the periphery of the filter 51, and is attached from the downstream side of the filter 51. For this reason, the upper and lower ends of the upstream side of the filter 51 are open. Further, an inclined surface 52 a is provided at the lower end portion of the mounting frame body 52 and is located below the lower end portion on the upstream side of the filter 51. The inclined surface 52a is inclined downward from the downstream side to the upstream side, and guides the dust falling from the filter 51 to the upstream side of the filter 51.

  Further, the attachment frame 52 is provided with a groove 52c to which a seal packing 52b for closing a gap between the filter portion 36 and the edge of the opening 45 is attached. The groove 52c is provided across both sides and the lower end of the mounting frame 52. A knob 52d is projected from the upper end of the mounting frame 52. The knob 52d is used when the filter unit 36 is removed from the dust collection cup body 35, and protrudes above the dust collection cup body 35 with the filter unit 36 attached to the dust collection cup body 35. Yes.

  Then, the filter part 36 is fitted to the convex part 55 on the upstream side of the filter 51, and slides from the upper side to the lower side of the dust collection cup body 35 along the sliding guide part 56 provided on the dust collection cup body 35. By moving it, the dust collecting cup body 35 is attached.

  Here, the sliding guide portion 56 is fitted to both side portions of the mounting frame 52 when the filter portion 36 is attached, and guides the sliding direction of the filter portion 36. Projecting wall portions 57 projecting from the outer wall portions 41 on both sides are provided in the form of elongated ribs along the vertical direction, and project toward the center side of the opening 45. The protruding wall portion 57 is a part of both side surfaces of the cleaner body 1 with the dust collecting cup 33 attached to the main body case 6, and protrudes rearward from both side surfaces of the outer wall portion 41. The front end protrudes slightly rearward from the rear end of the outer wall 41.

  Further, the filter portion 36 faces a partition wall (not shown) provided in the cleaner body 1. The partition wall is located in front of the electric blower 7 and partitions an electric blower chamber (not shown) that houses the electric blower 7 and the cup holder 12. In addition, a plurality of air holes that communicate between the cup holding portion 12 and the electric blower chamber are formed in the partition wall in a lattice shape.

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

  First, the filter unit 36 is attached to the dust collection cup body 35 of the dust collection cup 33.

  At this time, the filter trough portion 51b on the upstream side of the filter 51 of the filter portion 36 is fitted to each convex portion 55, and the filter crest portion 51a is fitted to each notch portion 55a while both sides of the mounting frame body 52 are fitted from above. The lower end of the seal packing 52b is brought into contact with the lower end of the inner edge of the opening 45 by being fitted to the slide guide 56 and sliding downward along the slide guide 56.

  Then, after the dust collecting cup 33 is fitted to the cup holding part 12 and the lid 5 is closed, the power cord led out from the cord reel 24 is connected to an outlet (not shown), and the gripping part 18 is gripped and the hand operating part The predetermined setting button 17 is pressed to drive the electric blower 7 in a predetermined state, and the gripping portion 18 is operated to cause the floor brush 22 to run back and forth on the floor surface.

  The air sucked from the floor brush 22 by the driving of the electric blower 7 becomes a suction wind, and is collected together with dust from the communicating cylinder portion 42 via the floor brush 22, the extension pipe 21, the hose body 15 and the main body suction port 14 and the dust collecting cup 33. It is sucked in.

  Dust having a relatively large mass has a large inertial force, so that it moves straight with the remaining suction air against the suction force generated by the electric blower 7, and is sucked into the first dust collecting portion 48a from the dust separating portion 46. Dust is collected in the first dust collection portion 48a, and the suction air passes through the filters 47b and 47d to the opening 45. At this time, a part of fine dust contained in the suction air is collected by the filters 47b and 47d.

  Further, since most of the suction air and fine dust contained in the suction air have a small inertia force, the suction force generated by the electric blower 7 passes through the separation part filter 46d of the dust separation part 46 and enters the opening 45. It reaches. At this time, a part of the fine dust contained in the suction air is collected by the separation unit filter 46d.

  Then, when the suction air that has reached the opening 45 passes through the filter 51 of the filter unit 36, fine dust that is not separated by the filters 46d, 47b, and 47d, that is, fine dust, is collected.

  Thereafter, the suction air is sucked into the electric blower 7 from the suction port 26 to become exhaust air, and is exhausted from the exhaust hole 25 to the outside of the main body case 6 through the exhaust port 27.

  When a predetermined amount or more of dust has accumulated in the dust collecting cup 33, the lid 5 is opened and the dust collecting cup 33 is removed from the cleaner body 1, and then the knob 52d of the mounting frame 52 is pinched. As shown, the filter part 36 is slid upward along the sliding guide part 56.

  Then, each convex portion 55 slides relatively downward with respect to the filter 51 while slightly expanding the filter valley portion 51b on the upstream side of the filter 51 in the width direction, and as shown in FIG. The dust D collected by 51 is scraped off by the respective convex portions 55 and falls to the second dust collecting portion 48b.

  The filter valley 51b of the filter 51 that is slightly expanded is elastically restored and deformed after the projection 55 has passed.

  Further, the operation button of the handle part 44 is operated to open the lower lid part 49, and the dust accumulated in the dust collecting part 48 is discarded. At this time, the filters 46d, 47b, 47d are also cleaned.

  And after closing the lower cover part 49 and attaching the filter part 36 again, the dust collection cup 33 is mounted | worn with the cleaner main body 1 again.

  As described above, in the first embodiment, the pleated filter 51 is collected on the filter 51 by the convex portion 55 fitted on the upstream side of the filter 51 in a state where the pleated filter 51 is attached to the dust collection cup body 35. The dust D is scraped when the filter 51 is removed from the dust collecting cup body 35.

  For this reason, for example, dust that contains moisture and has high adhesiveness or fine fibrous fine dust accumulates compared to the conventional case where impact is applied to the downstream side of the filter to drop the dust collected by this filter. Since it is possible to reliably remove dust that is relatively difficult to remove, the dust D collected by the filter 51 can be reliably removed from the filter 51.

  As a result, the filter 51 can be reliably cleaned by the convex portion 55 without the operator directly touching the filter 51 with his / her hand, and the operator's hand can be prevented from becoming dirty.

  In particular, since the filter 51 is formed in a pleat shape, it is not easy to remove dust that has entered between the pleats, that is, in the filter valley portion 51b. However, the convex portion 55 has a shape that matches the pleated shape of the filter 51. The filter 51 can be easily cleaned by scraping off dust between the pleats of the filter 51.

  Further, by subjecting the surface of the tip portion of the convex portion 55 fitted on the upstream side of the filter 51 to a squeezing process, the contact resistance between the filter 51 and the convex portion 55 when the filter portion 36 is slid can be reduced. The slidability of 51 can be improved, and lint or cotton dust can be hooked and scraped off on each crease provided on the convex portion 55.

  Furthermore, by guiding the filter portion 36 in the vertical direction with the sliding guide portion 56 corresponding to the convex portion 55, the filter portion 36 can be easily attached to the dust collecting cup body 35, and the filter 51 is attached to the convex portion 55. It can also prevent biting and damage.

  Further, by providing the convex portion 55 on the upper part of the dust collecting cup body 35, when the filter portion 36 is slid upward when the filter portion 36 is removed, the dust scraped off from the filter 51 by the convex portion 55. Falls, the dust can surely be collected in the second dust collecting part 48b of the dust collecting part 48 located in the lower part of the dust collecting cup body 35.

  Further, by forming each convex portion 55 slightly wider than the filter trough portion 51b, each convex portion 55 can be securely fitted to each filter trough portion 51b, and air containing dust leaks, The leakage efficiency can be prevented from decreasing due to this leakage, and when the dust D collected by the filter 51 is scraped by the respective convex portions 55, the filter valley portion 51b is slightly expanded in the width direction. Since the filter 51 is slightly deformed and the dust D collected by the filter 51 can be easily separated from the filter 51, the dust D collected by the filter 51 can be more reliably scraped from the filter 51.

  Furthermore, by coating the surface of the filter 51 with fluorine, it is possible to make it difficult for dust to adhere to the filter 51, and it is possible to more easily scrape the dust attached to the filter 51 with the convex portion 55.

  Further, by using the dust collecting cup 33, the clogging of the filter 51 can be easily eliminated, so that the usability can be improved.

  In the first embodiment, a configuration in which brush hair is planted at the tip of the convex portion 55 instead of the crimping process is also possible. Also in this case, it is possible to achieve the same effect as the case of grain processing.

  Next, a second embodiment will be described with reference to FIG. In addition, about the structure and effect | action similar to the said 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In the embodiment shown in FIG. 6, instead of the convex portion 55 of the first embodiment, a plurality of brush bristles 61 as a dust removing portion are arranged on the upper edge portion of the opening 45 of the dust collecting cup body 35. Has been. These brush hairs 61 have flexibility and are softer than the filter 51. Further, these brush bristles 61 project rearward substantially horizontally over a width that overlaps the entire width of the filter 51, and contact the upstream side between the pleats of the filter 51 without any gap.

  Then, when the filter part 36 is attached to the dust collection cup body 35, each bristle 61 is flexibly deformed and fitted into and contacted with the filter trough part 51a on the upstream side of the filter 51 in a substantially airtight state. When 36 is slid upward with respect to the dust collecting cup body 35 and removed, the brush bristles 61 scrape off the dust D collected by the filter 51. As a result, it is possible to achieve the same effects as the first embodiment.

  In addition, since the brush bristles 61 that scrape the dust D collected by the filter 51 are flexible and softer than the filter 51, the surface of the filter 51 may be damaged when the dust is scraped off. In addition to preventing the bristle 61 from conforming to the pleated shape of the filter 51, the bristle 61 is flexibly deformed in accordance with the shape of the filter 51. Therefore, manufacturability can be improved.

  In each of the above embodiments, the removal direction of the filter part 36 with respect to the dust collection cup body 35 is set corresponding to the dust removing part such as the convex part 55 or the brush bristles 61. For example, the convex portion 55 or the bristles 61 may be provided on the lower edge of the opening 45 of the dust collection cup body 35. In this case, the filter unit 36 can be removed by sliding downward with respect to the dust cup main body 35, and it is possible to achieve the same operational effects as the above embodiments, When dust on the filter 51 is scraped off by the convex portion 55 or the brush bristles 61, it is possible to prevent the dust from flying up.

  Further, the details of the dust separator 46 or the dust collector 48 of the dust cup body 35 are not limited to the above configuration.

  Furthermore, if the dust D collected by the filter 51 can be scraped off, the dust removing portion can have various configurations other than the convex portion 55 or the brush bristles 61.

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

  Further, the vacuum cleaner is not limited to the canister type, but is an upright type in which the floor brush 22 is directly formed on the lower surface of the vacuum cleaner body 1, and the self-cleaning machine in which the vacuum cleaner body 1 and the floor brush 22 are integrated. Even a traveling vacuum cleaner or a handy type can be used correspondingly.

It is a perspective view which shows the dust collector of the vacuum cleaner of one embodiment of this invention. It is a perspective view which expands and shows the dust removal part of the dust collector of a vacuum cleaner same as the above. It is explanatory drawing which shows the removal from the dust collecting part main body of the dust collector of an electric vacuum cleaner same as the above. It is a longitudinal cross-sectional view which shows the vacuum cleaner main body of the vacuum cleaner provided with the dust collector of the vacuum cleaner same as the above. It is a perspective view which shows a vacuum cleaner same as the above. It is a perspective view which shows a part of dust collector of the vacuum cleaner of the 2nd Embodiment of this invention.

Explanation of symbols

1 Vacuum cleaner body 7 Electric blower
33 Dust collection cup as dust collector of vacuum cleaner
35 Dust collector cup body as dust collector body
51 Filter
55 Convex part as dust removal part
56 Sliding guide
61 Brush hair as a dust remover

Claims (5)

A dust collector body for collecting part of the sucked dust;
A pleated filter that is detachably provided on the dust collector main body and collects dust passing through the dust collector main body,
The filter is fitted to the dust collecting unit main body and fitted to the upstream side of the filter, and dust collected by the filter is scraped from the filter when the filter is removed from the dust collecting unit main body. A dust collector for an electric vacuum cleaner comprising a dust removing unit. The dust collecting device for an electric vacuum cleaner according to claim 1, wherein the dust removing portion has a surface of a portion that fits on the upstream side of the filter. The dust collecting device for an electric vacuum cleaner according to claim 1 or 2, further comprising a sliding guide portion for sliding the filter in correspondence with the dust removing portion. The dust collecting device for a vacuum cleaner according to any one of claims 1 to 3, wherein the dust removing unit is provided on an upper portion of the dust collecting unit main body. A vacuum cleaner body containing an electric blower,
An electric vacuum cleaner comprising: the vacuum cleaner dust collecting device according to any one of claims 1 to 4, which is provided in the vacuum cleaner body and communicates with a suction side of the electric blower.

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