JP2007252540A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner capable of effectively eliminating dust collected by a pleat filter without lowering suction efficiency. <P>SOLUTION: A dust eliminating mechanism 27 eliminating the dust collected by the pleat filter 26 can be moved to the outside of the range where the pleat filter 26 is located by a moving mechanism 51 in the frame body 25 arranged around the pleat filter 26. The dust eliminating mechanism 27 does not become the load when sucking, so that the dust collected by the pleat filter 26 can be effectively eliminated by the dust eliminating mechanism 27 without lowering the suction efficiency. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vacuum cleaner provided with a dust dropping mechanism for dropping dust collected by a filter.

  Conventionally, this type of vacuum cleaner includes a vacuum cleaner body that houses an electric blower. A dust collection cup as a dust collector is detachably provided in the cleaner body. This dust collection cup has a dust separation part that separates dust sucked together with air by driving an electric blower from the air, and a dust collection part that accommodates a part of the dust separated by the dust separation part. It has a main body and a filter device that is detachably attached to the cup main body and collects fine dust that has passed through the dust separator, that is, fine dust.

The filter device includes a frame body to be attached to the cup body and a pleat filter as a filter held by the frame body, and the upstream surface of the pleat filter is collected by the pleat filter. A dust removal mechanism is provided for removing fine dust. The dust removing mechanism includes a holding body that is slidable in the vertical direction, which is the pleating direction of the pleat filter, on both sides of the frame body, and an upstream surface of the pleated filter provided on the holding body. And a brush-like cleaning member with a tip abutting on. When cleaning the pleat filter, the dust dropping mechanism is operated up and down to scrape dust adhering to the upstream side surface of the pleat filter by the cleaning member (see, for example, Patent Document 1).
JP-A-2005-261518 (page 4-5, FIG. 2-3)

  However, in the above vacuum cleaner, since the dust dropping mechanism is provided so as to cross the pleated filter, the dust dropping mechanism becomes an air path resistance when sucking by the electric blower, and the suction efficiency is lowered. Has the problem.

  This invention is made | formed in view of such a point, and it aims at providing the vacuum cleaner which can remove efficiently the dust collected with the filter, without reducing suction efficiency.

  The present invention relates to a frame provided around a filter, a dust dropping mechanism that drops dust collected by the filter, and a moving mechanism that is provided on the frame and allows the dust dropping mechanism to move out of a range where the filter is located. Are provided.

  According to the present invention, the dust dropping mechanism is moved outside the range where the filter is located by the moving mechanism, so that the dust dropping mechanism does not become a load at the time of suction and is collected by the filter without reducing the suction efficiency. Dust can be efficiently removed by the dust dropping mechanism.

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

  FIG. 5 shows a main body 1 of the vacuum cleaner. The main body 1 of the vacuum cleaner 1 is a dust collecting unit that serves as a dust collector for an electric vacuum cleaner and sucks dust sucked together with the suction air generated by driving the electric blower 2 accommodated therein. It is an electric vacuum cleaner that separates and collects dust with a dust collection cup 3, and can travel on the floor as a surface to be cleaned.

  And in the front part of the vacuum cleaner main body 1, a cup chamber 5 is provided as a dust collection chamber that communicates with the suction side of the electric blower 2 through a grid-like communication hole 4. The dust collection cup 3 is attachable to and detachable from the cup chamber 5 through the opened opening 6.

  Further, a main body suction port 7 communicating with the cup chamber 5 is provided at the front end portion of the cleaner body 1, and a hose body (not shown) is detachably connected to the main body suction port 7. A hand operating unit (not shown) for gripping operation by an operator is provided at the tip of the hose body, and an extension pipe (not shown) and a floor brush as a suction port body are sequentially connected to the tip of the hand operating unit. Is done.

  Furthermore, a power cord (not shown) that is connected to an external power source and can supply power to the electric blower 2 is provided in the cleaner body 1 so that it can be led out.

  The dust collection cup 3 includes a cup body 13 as a dust collection body having a suction port 11 for sucking dust together with air by driving the electric blower 2 at the front and an exhaust port 12 at the rear, and the cup body. A filter body 14 detachably attached to the 13 exhaust ports 12 is provided.

  The suction port 11 is connected to the downstream side of the main body suction port 7 in a state where the dust collection cup 3 is attached to the cup chamber 5.

  The exhaust port 12 is connected in communication with the communication hole 4 in a state where the dust collection cup 3 is attached to the cup chamber 5.

  And in the cup main body 13, as shown in FIG. 4, the dust separation means which isolate | separates the dust sucked from the suction inlet 11 from air, and the mesh which collects the fine dust which passed this dust separation means -Shaped mesh filter 16, a dust separating means and a main dust collecting portion 17 as a first dust collecting portion for collecting dust separated by the mesh filter 16, and fine dust finer than dust accumulated in the main dust collecting portion 17 And a secondary dust collecting portion 18 as a second dust collecting portion for storing the water.

  Further, a cup lid 21 as a lid that can open and close the main dust collecting portion 17 and the sub dust collecting portion 18 at the same time is provided below the cup body 13.

  The dust separation means is a part that separates dust from the air, for example, by inertial separation or centrifugal separation.

  The mesh filter 16 defines the downstream end of the main dust collecting portion 17 and is located upstream of the exhaust port 12.

  The main dust collection portion 17 is a space portion that communicates with the suction port 11 and the exhaust port 12, and is partitioned on the front side of the cup body 13.

  The sub dust collector 18 is located behind the mesh filter 16, which is behind the main dust collector 17, and from the front to the bottom of the filter body 14 attached to the exhaust port 12.

  The cup lid 21 is configured to be opened by operating a button portion (not shown) provided on a handle portion 23 provided on the upper front side of the cup body 13.

  On the other hand, as shown in FIGS. 1 to 3, the filter body 14 includes a frame body 25 fitted to the exhaust port 12, a pleated filter 26 as a filter held by the frame body 25, and the pleated filter 26. And a dust removal mechanism 27 as a dust removal unit located on the downstream side, that is, the rear side.

  The frame body 25 is formed in a plate shape having an outer shape along the inner shape of the exhaust port 12, and communicates with the exhaust port 12 with the filter body 14 attached to the cup body 13 at the center, for example, in a rectangular shape Are formed on the front side, which is the upstream side, and an inclined surface 32 which is inclined downward toward the front is formed at the lower part of the opening 31 and the frame is formed on the rear side which is the downstream side. 33 is protrudingly formed. Further, a packing 34 as a seal member for closing a gap with the exhaust port 12 is attached around the frame body 25.

  A pleated filter 26 is attached to the opening 31.

  The inclined surface 32 guides the dust dropped from the pleat filter 26 by the dust dropping mechanism 27 to the sub dust collecting unit 18.

  The frame portion 33 is a linear frame that is formed between the side frame portions 35, 35 as movable shafts that are linearly formed along both side edges of the opening portion 31, and the upper end portions of the side frame portions 35, 35. And an upper frame portion 36.

  Each side frame portion 35 has a lower end portion extending below the lower end portion of the opening 31 and an upper end portion extending above the upper end portion of the opening 31. That is, each side frame portion 35 extends to the outside in the vertical direction outside the range where the pleat filter 26 is located, and the lower space S1 and the upper space where the dust dropping mechanism 27 is disposed below and above the opening portion 31. S2 is formed. In addition, a plurality of locking recesses 38 which are click receiving portions as first locking portions are provided on the front side surface of each side frame portion 35 so as to be spaced apart at substantially equal intervals. Further, a guide groove portion 39 is formed on the side portion opposite to the opening portion 31 of each side frame portion 35, that is, on the outer side portion from the lower end portion to the vicinity of the upper end portion.

  Each space S1, S2 has a vertical dimension that is greater than or equal to the vertical dimension of the dust drop mechanism 27.

  The locking recess 38 is formed in a substantially arc shape in cross section, and is provided at least on both sides of the lower space S1 and on both sides of the upper space S2.

  The guide groove 39 is a portion that guides the dust dropping mechanism 27 along the vertical direction.

  The upper frame portion 36 is separated from the upper end portion of the opening 31 by a distance larger than the vertical dimension of the dust dropping mechanism 27, and defines the upper end portion of the upper space S2.

  Further, the pleat filter 26 is formed with pleats along the vertical direction, and a plurality of these pleats are continuous in the left-right width direction.

  Further, the dust drop mechanism 27 is provided between the both side frame portions 35, 35 as a holding plate formed in a straight line in the left-right direction, and is provided on the slide plate 41 so as to be slidable in the left-right direction. The slide part 42 as a dust drop body and the leaf springs 43 and 43 as the latches as the second latch part that can fix the slide plate 41 to the frame 25 are provided.

  The slide plate 41 includes a slide plate main body 45 that is linear in the left-right direction, and guide fitting portions 46 that are provided on both left and right sides of the slide plate main body 45.

  The slide plate main body 45 is a portion that is inserted through the slide portion 42 and guides or guides the slide portion 42 in the left-right direction.

  Each guide fitting portion 46 includes a projecting portion 47 projecting toward the frame body 25 side of the slide plate main body 45, that is, the front side, and an engagement projecting from the distal end portion of the projecting portion 47 toward the center in the left-right width direction. Part 48 and is formed in a U shape in plan view.

  Coil springs 49 as urging members for urging the slide plate 41 upward are provided over the left and right sides of the upper frame portion 36 at the upper portions of the protrusions 47, respectively.

  Each engaging portion 48 is a portion that is fitted in the guide groove portion 39 of each side frame portion 35 and allows the slide plate 41 to slide in the vertical direction along the both side frame portions 35 and 35.

  The guide fitting portions 46 and 46 and the side frame portions 35 and 35 constitute a moving mechanism 51 that allows the dust dropping mechanism 27 to move outside the range where the pleated filter 26 is located.

  The slide portion 42 includes a cylindrical slide portion main body 53 that is inserted into the slide plate main body 45, a dust drop protrusion 54 that projects from the front portion of the slide portion main body 53, that is, the pleat filter 26 side, and a slide portion main body. 53 and a knob portion 55 projecting from the rear portion.

  The dust drop projecting portion 54 is formed in a substantially spherical shape at the tip, and is fitted into a pleat valley portion on the downstream side of the pleated filter 26, and sliding of the slide portion 42 in the left-right direction causes the pleat filter 26 to The pleat filter 26 is vibrated by flipping each pleat crest, and the fine dust collected by the pleat filter 26 is dropped.

  Each leaf spring 43 includes a leaf spring body 57 positioned between the slide plate 41 and each side frame portion 35, and an engagement portion 58 projecting rearward from the upper end portion and the lower end portion of the leaf spring body 57. , 58.

  In the leaf spring main body 57, a locking convex portion 61 as a click convex portion protruding in an arc shape toward the front is engageable with a locking concave portion 38 of each side frame portion 35, and in this engaged state The slide plate 41 is configured to be locked to the frame body 25 at a predetermined position. Further, when the locking convex portion 61 comes out of the locking concave portion 38, it comes into contact with the rear side surface of each side frame portion 35 and elastically deforms so as to be crushed in the front-rear direction, so that the slide plate 41 slides in the vertical direction. When it is positioned in the next locking recess 38 due to the movement, it is deformed to return and engage with this locking recess 38.

  The locking projection 61 and the locking recess 38 constitute a locking portion 63 capable of locking the dust drop mechanism 27 to the frame 25 outside the range where the pleated filter 26 is located.

  The engaging portions 58 are respectively engaged with the upper and lower portions of the slide plate main body 45 of the slide plate 41, and are fixed to the slide plate main body 45 by screws 64 as locking members. As a result, each leaf spring 43 is integrally fixed to the slide plate 41.

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

  When cleaning, first, the dust collection cup 3 having the filter body 14 attached to the cup body 13 is attached to the cup chamber 5.

  At this time, the filter body 14 moves the slide plate 41 outside the range where the pleated filter 26 is located, for example, the lower space S1 or the upper space S2.

  Next, the power cord is led out from the vacuum cleaner main body 1 and connected to the outlet, and the hose body, the extension pipe and the floor brush are sequentially connected to the main body suction port 7, and the electric blower 2 is operated by operating the hand operation unit. Driven.

  By driving the electric blower 2, air is sucked together with dust from the tip of the floor brush, and the sucked air is sucked into the suction port of the dust collecting cup 3 through the extension pipe, the hose body and the main body suction port 7. Inhaled into 11.

  In the dust separating portion of the dust collecting cup 3, the dust is separated from the suction air and collected in the main dust collecting portion 17, and the fine dust that has not been separated in the dust separating portion passes through the mesh filter 16. At this time, it is collected by the mesh filter 16.

  Further, the fine dust not collected by the mesh filter 16 is collected by the pleat filter 26 when the suction air passes through the pleat filter 26.

  The suction air from which the dust has been removed is sucked into the suction side of the electric blower 2 through the exhaust port 12 and the communication hole 4 of the dust collecting cup 3, passes through the electric blower 2, and becomes exhaust air. To the outside of the vacuum cleaner body 1.

  When the cleaning is completed, the operation of the hand operating unit is operated to stop the driving of the electric blower 2.

  When a predetermined amount or more of dust has accumulated in the main dust collecting portion 17 of the dust collecting cup 3, the dust collecting cup 3 is removed from the cup chamber 5, and the slide plate 41 is slid downward or upward by pinching the knob portion 55. To move to a range where the pleat filter 26 is located.

  For example, when the slide plate 41 is moved above the pleated filter 26, the slide plate 41 is positioned between the upper frame portion 36 and the upper end portion of the opening 31, and the slide plate 41 is moved to the pleated filter 26. When moved downward, the slide plate 41 is positioned below the lower end of the opening 31.

  At this time, the slide plate 41 is guided in the vertical direction along the side frame portions 35 and 35, that is, in the pleat direction of the pleat filter 26, by the fitting of the side frame portions 35 and 35 and the guide fitting portions 46 and 46. Then, the locking projection 61 of each leaf spring 43 is elastically deformed and is disengaged from the locking recess 38 and slides on the end surfaces of the both side frame portions 35, 35 to return and deform in the next locking recess 38. By engaging with the stop recess 38, the slide plate 41 is locked at a predetermined position by the locking portion 63.

  Then, the slide part 42 is slid left and right along the slide plate 41 to give vibration to the pleated filter 26, and the fine dust adhering to the pleated filter 26 is shaken off from the pleated filter 26.

  The fine dust that has been shaken off is guided to the sub dust collection chamber 18 by the inclined surface 32 and is stored in the sub dust collection chamber 18.

  Then, the cup lid is opened by operating the button part of the handle part 23, and the dust collected in the main dust collecting chamber 17 and the sub dust collecting chamber 18 is discarded outside the dust collecting cup 3.

  Thereafter, the cup lid 21 is closed, and the slide plate 41 is moved out of the range where the pleated filter 26 is located, that is, to the lower space S1 or the upper space S2, and the dust collecting cup 3 is moved to the cup chamber 5 of the cleaner body 1 again. And attach.

  As described above, according to the first embodiment, the dust removing mechanism 27 that drops the dust collected by the pleated filter 26 is disposed on the frame 25 provided around the pleated filter 26. By providing the moving mechanism 51 that can move out of the range, the dust dropping mechanism 27 is moved out of the range where the pleat filter 26 is moved by the moving mechanism 51, so that the dust dropping mechanism 27 is subjected to the load at the time of suction. In addition, the dust collected by the pleated filter 26 can be efficiently removed by the dust dropping mechanism 27 without reducing the suction efficiency.

  In addition, the slide plate 41 that is moved in the vertical direction by the moving mechanism 51 is provided with a slide portion 42 that slides in the entire left and right direction, so that the slide portion 42 is provided with respect to substantially the entire downstream surface of the rectangular pleated filter 26. Therefore, for example, the pleat filter 26 can be cleaned to every corner as compared with the conventional case in which a dust removing mechanism is provided only at one central portion of the frame 25 to apply vibration to the pleated filter.

  Furthermore, by providing a locking portion 63 that locks the slide plate 41 to the frame 25 at a predetermined position, the slide plate 41 is caused to vibrate by vibration or the like when the dust collecting cup 3 is used for cleaning or the like. It is possible to prevent movement within the range where the is located.

  The pleat filter 26 has a pleat shape formed along the vertical direction so that the dust removed by the dust removal mechanism 27 does not reattach, so the slide plate 41 is moved vertically according to the pleat direction. By making it movable, it is possible to reliably prevent the dust drop protrusion 54 from crossing the pleated shape of the pleated filter 26 and damaging the pleated filter 26.

  In particular, in the present embodiment, since the slide plate 41 moves in the vertical direction, for example, when the slide plate 41 is positioned above the pleat filter 26, the slide plate 41 is within the range where the pleat filter 26 is positioned by its own weight. By providing the locking portion 63 so as not to move, the slide plate 41 can be reliably prevented from moving into the range where the pleated filter 26 is located.

  Furthermore, since the dust drop mechanism 27 is located on the downstream side of the pleat filter 26, the sucked dust or the like hardly adheres to the dust drop mechanism 27.

  In the first embodiment, as in the second embodiment shown in FIG. 6, the locking recess 38 is notched so as to be continuous over both sides of each side frame portion 35. It is also possible.

  Further, as in the third embodiment shown in FIG. 7, main body convex portions 65, 65 as main body moving mechanisms are protruded on both side portions in the cup chamber 5 of the cleaner main body 1, and the dust collecting cup 3 When the cup is attached to the cup chamber 5 from the opening 6, the main body convex portions 65, 65 abut against the lower portions on both sides of the slide plate 41 and move the slide plate 41 upward relative to the pleated filter 26. It is also possible to configure so that the slide plate 41 is moved to the upper space S2 (FIG. 1) that is outside the range of the pleat filter 26 with the dust cup 3 attached.

  Further, when the dust collecting cup 3 is attached to the cup chamber 5, the locking portion 63 releases the locking of the slide plate 41 to the frame body 25, and the biasing force of the coil spring 49 causes the slide plate 41 to move to the pleated filter 26. You may comprise so that it may move out of the range which is located.

  And the structure of the latching | locking part 63 reverses an unevenness | corrugation, ie, the latching convex part 61 protrudes from each side frame part 35 side back, and the latching convex part 61 is provided in the frame 25 side of the slide plate 41. It is good also as a structure etc. which provide the latching recessed part 38 to engage.

  Further, the side frame portion 35 may be provided on at least one of the left and right sides of the pleated filter 26.

  Further, the dust removing mechanism 27 may be disposed on the upstream side of the pleat filter 26.

  The dust removing mechanism 27 is not limited to the one that drops fine dust collected by the pleated filter 26 by vibration, and other various configurations such as a configuration for scraping the fine dust from the upstream surface of the pleated filter 26. Can do.

  In each of the above embodiments, since the filter is the pleated filter 26, the dust drop mechanism 27 is moved in the vertical direction along the pleat. However, for example, when the filter is a general filter, the dust drop mechanism 27 is moved. May be configured to slide in the left-right direction.

  Furthermore, although the dust collecting cup type vacuum cleaner has been described, it is needless to say that the present invention can also be applied to a vacuum cleaner that collects dust using a dust collecting unit such as a paper pack.

  The electric vacuum cleaner is not limited to the canister type, and may be, for example, a self-propelled electric vacuum cleaner. For example, an upright type or a handy type in which a floor brush is directly formed on the lower surface of the main body 1 of the vacuum cleaner. Can be used correspondingly.

It is a perspective view which shows the filter vicinity of the 1st Embodiment of this invention from the back side. It is a top view which shows a vacuum cleaner same as the above. It is a longitudinal cross-sectional view which shows the principal part of a vacuum cleaner same as the above. It is a longitudinal cross-sectional view which shows the dust collection part of a vacuum cleaner same as the above. It is a disassembled perspective view which shows a vacuum cleaner same as the above. It is a perspective view which shows a part of moving mechanism of 2nd Embodiment of the vacuum cleaner of this invention. It is a perspective view which shows a part of 3rd Embodiment of the vacuum cleaner of this invention.

Explanation of symbols

1 Vacuum cleaner body 2 Electric blower
25 Frame
26 Pleated filter as a filter
27 Dust removal mechanism
51 Movement mechanism
63 Locking part
65 Convex part of main body as main body moving mechanism

Claims (4)

Filters,
A frame provided around the filter;
A dust removal mechanism for dropping the dust collected by the filter;
An electric vacuum cleaner comprising: a moving mechanism that is provided on the frame body and allows the dust dropping mechanism to move out of a range where the filter is located. The filter is a filter having up and down pleats,
The vacuum cleaner according to claim 1, wherein the dust removing mechanism is movable up and down along a pleating direction of the filter. The electric vacuum cleaner according to claim 1 or 2, further comprising an engaging portion capable of engaging the dust dropping mechanism with the frame body outside the range of the filter. A vacuum cleaner body containing an electric blower,
A main body moving mechanism for moving a dust dropping mechanism out of the filter range by a moving mechanism when the filter and the frame are attached to the cleaner body. The vacuum cleaner described.

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