CN1726858A - Electric sweeper and rotary dust collector - Google Patents

Abstract

An electric cleaner capable of capturing dust contained in air sucked into a main body from a suction port, comprising: the rotary dust collector includes a rotary dust collector for collecting dust contained in air drawn in from the suction port by rotating the air, and discharging the air from a discharge port, a filter for covering the discharge port and collecting the dust contained in the air discharged from the discharge port, a housing portion formed in the main body and housing the rotary dust collector and having a wall surface partially defining the rotary dust collector facing the discharge port, an opening formed in the wall surface and smaller than the discharge port and configured to guide air discharged from the discharge port to a downstream side, and a guide passage configured to guide air discharged from a portion of the discharge port not facing the opening through the filter to the opening side.

Description

Electric sweeper and rotary dust collector

technical field

The invention relates to an electric sweeper and a rotary dust collecting device installed on the electric sweeper.

Background technique

A general electric sweeper includes a main body having an electric blower, a suction part moved along the ground, and a connecting hose connecting the suction part to the main body, and a bag-shaped disposable filter can be attached to the main body. When this kind of electric sweeper is operated, due to the drive of the electric blower provided on the main body, the air outside the machine (air on the ground) is sucked from the suction part, and the air passes through the connecting hose and is drawn from the Inhale into the main body through the suction port on the main body. The inlet of the disposable filter housed in the main body communicates with the suction port, and when the air sucked from the suction port passes through the disposable filter, the dust contained in the air is captured by the disposable filter (for example, refer to patent documents 1).

However, since such an electric sweeper uses a disposable filter, it is not economical, and it is not preferable from the viewpoint of environmental protection. In addition, since the disposable filter is not replaced until a certain amount of dust remains in the filter, there is a possibility that a bad smell will be generated from the retained dust, etc., and the suction force will decrease as the dust remains, and the dust collection efficiency will deteriorate. The problem.

Recently, there is known an electric sweeper equipped with a rotary dust collector capable of centrifugally separating and capturing dust contained in the air sucked in from the suction port by rotating the air. The dust remaining in the rotary dust collector can be easily removed by removing the dust collector from the main body and performing a given operation. In the electric sweeper using the rotary dust collector, by removing the dust remaining in the rotary dust collector frequently (for example, every time cleaning is performed), it is possible to prevent the generation of bad odor and the reduction of dust collection efficiency.

[Patent Document 1] Publication No. 5-20279 of Shi Gong

Contents of the invention

The present invention has been accomplished on the basis of such a background, and one of the objects thereof is to provide an electric sweeper and a rotary dust collector with improved dust collection efficiency.

Another object of the present invention is to provide an electric sweeper and a rotary dust collector with improved convenience.

A third object of the present invention is to provide an electric sweeper and a rotary dust collector having improved operability when removing dust remaining in the rotary dust collector.

The invention described in claim 1 for achieving the object is an electric sweeper 1 capable of capturing dust contained in the air sucked into the main body 3 from the suction port 4, and is characterized in that it includes: The air inhaled in the suction port rotates, and the dust contained in the air can be separated and captured by centrifugal force, and the dust-captured air is discharged from the exhaust port 19 through the rotary dust collector 7, covering the exhaust air. A filter 20 for capturing dust contained in the air discharged from the exhaust port, a wall surface 9B formed on the main body to accommodate the rotary dust collector and partly divide it, and The accommodating portion 9 facing the exhaust port is formed on the wall surface smaller than the exhaust port to guide the air discharged from the exhaust port to the opening 33 on the downstream side. Air discharged through the filter from a portion of the exhaust port not facing the opening is guided to the guide path 35 on the opening side.

In addition, the numerals following the components indicate corresponding constituent elements in the embodiments described later. The following are the same in this item.

The rotary dust collector is preferably formed as large as possible in order to rotate the air sucked in from the suction port well to improve the dust collection efficiency. In addition, in order to discharge air well from the rotary dust collector, it is preferable to form the exhaust port larger. In addition, if the exhaust port is formed large, the filter covering the exhaust port can also be formed large, so that clogging of the filter can be suppressed.

On the other hand, when the rotary dust collector is formed larger, since the accommodating portion for accommodating the rotary dust collector needs to be formed larger, the space for arranging other parts in the electric sweeper main body is limited. restricted. Therefore, it is difficult to form an opening of the same size as the exhaust port on the wall surface facing the exhaust port of the rotary dust collector that divides a part of the housing portion, and it is necessary to make the opening smaller than the exhaust port. Case.

In this case, although the air will flow well to the opening from the part facing the opening in the entire exhaust port through the filter, the flow of air in the part not facing the opening will be reduced. worse. Therefore, even if the rotary dust collector itself is formed large and the exhaust port is formed large in order to improve the dust collection efficiency, the dust collection efficiency cannot be sufficiently improved.

According to the structure of the present invention, since the air discharged through the filter from the part of the exhaust port that does not face the opening can be guided to the opening side by the guide path, it can be ensured that the part of the exhaust port that does not face the opening For air circulation in the part. Therefore, since the air can pass through the filter from the entire exhaust port and flow toward the opening side, it is possible to suppress a decrease in the suction force and improve the dust collection efficiency.

The filter 20 can also be made of materials containing polyurethane.

In addition, the opening 33 may also be covered by a filter 34 having a pleated structure.

The invention according to claim 2 is the electric sweeper 1 according to claim 1, which is further provided on the downstream side of the filter 20, and is formed to pass through the filter 20. The air discharged from the exhaust port passes through the air hole, and the filter cover 25, 32A, 32B whose downstream side surface is in contact with the wall surface 9B, and the guide path 35 passes through the filter cover. A space is formed between the filter and the filter.

According to this configuration, the rotary dust collector can be firmly fixed in the accommodating portion by bringing the filter cover into contact with the wall surface, and the guide path can be formed by using the space formed between the filter cover and the filter.

The air holes may also be configured by arranging a plurality of rod-shaped materials 32A, 32B in a grid. At this time, among the plurality of rod-shaped materials 32A, 32B, along the direction of the air discharged through the filter 20 from the portion of the exhaust port 19 that does not face the opening 33 , The rod-shaped material 32B extending in the flow direction (left-right direction) on the opening side is in contact with the filter, and the rod-shaped material 32A extending in a direction intersecting the flow direction (for example, an up-down direction) is separated from the filter, According to such a configuration, the filter can be held by the rod-shaped material extending in the flow direction, and the space between the rod-shaped material extending in the direction crossing the flow direction and the filter can be configured. the guide way.

The invention described in claim 3 is an electric sweeper 1 capable of capturing dust contained in the air sucked into the main body 3 from the suction port 4, and is characterized in that, by rotating the air sucked from the suction port, , the dust contained in the air can be separated and captured by centrifugal force, and the dust-captured air is discharged from the exhaust port 19 by the rotary dust collector 7, covering the exhaust port and used to extract the air from the exhaust port. A filter 20 that traps dust contained in the air discharged from the exhaust port is arranged on the downstream side of the filter and is formed to pass the air that passes through the filter and is discharged from the exhaust port. and filter covers 25, 32A, 32B bitten into annular ribs 32C of the filter are formed on portions facing the peripheral portion of the filter.

According to this configuration, by biting the annular rib formed on the filter cover into the filter, it is possible to prevent a gap from being generated between the peripheral portion of the filter and the filter cover. Therefore, by making the annular rib function as a partition wall, it is possible to prevent dust from leaking from the rotary dust collector through a gap between the peripheral portion of the filter and the filter cover.

The air holes may also be formed by arranging a plurality of rod-shaped materials 32A, 32B in a grid.

The invention according to claim 4 is the electric sweeper 1 according to claim 2 or 3, wherein the rotary dust collector 7 includes a filter holder for holding the filter 20 . member 18B, the filter housings 25, 32A, 32B are provided on the filter holding member.

According to this configuration, since the filter cover can be integrally formed on the filter holding member for holding the filter, the number of parts can be reduced and the manufacturing cost can be reduced.

The invention described in claim 5 is an electric sweeper 1 capable of capturing dust contained in the air sucked into the main body 3 from the suction port 4, and is characterized in that, by rotating the air sucked from the suction port, , the dust contained in the air can be separated and captured by centrifugal force, and the dust-captured air is discharged from the exhaust port 19 by the rotary dust collector 7, covering the exhaust port and used to extract the air from the exhaust port. The filter 20 for capturing dust contained in the air discharged from the exhaust port, and the wall surface 9B formed on the main body to accommodate the rotary dust collector and partly divide it face the exhaust port. The pair of accommodating parts 9 are formed smaller than the exhaust port on the wall surface and are used to guide the air discharged from the exhaust port to the opening 33 on the downstream side. A portion of the space on the upstream side of the filter that does not face the opening is formed narrower than a portion facing the opening.

The rotary dust collector is preferably formed as large as possible in order to rotate the air sucked in from the suction port well to improve the dust collection efficiency. In addition, in order to discharge air well from the rotary dust collector, it is preferable to form the exhaust port larger. In addition, if the exhaust port is formed large, the filter covering the exhaust port can also be formed large, so that clogging of the filter can be suppressed.

On the other hand, when the rotary dust collector is formed larger, since the accommodating portion for accommodating the rotary dust collector needs to be formed larger, the space for arranging other parts in the electric sweeper main body is limited. restricted. Therefore, it is difficult to form an opening of the same size as the exhaust port on the wall surface facing the exhaust port of the rotary dust collector that divides a part of the housing portion, and it is necessary to make the opening smaller than the exhaust port. Case.

In this case, although the air will flow well to the opening from the part facing the opening in the entire exhaust port through the filter, the flow of air in the part not facing the opening will be reduced. worse. Therefore, even if the rotary dust collector itself is formed large and the exhaust port is formed large in order to improve the dust collection efficiency, the dust collection efficiency cannot be sufficiently improved.

In addition, in general, the air swirling in the rotary dust collector tends to flow into a narrower space.

According to the configuration of the present invention, the part of the space on the upstream side of the filter in the rotary dust collector that does not face the opening is narrower than the part facing the opening. form. Therefore, since the air can be positively guided to the side of the portion of the exhaust port that does not face the opening where the circulation of the air is poor, not only the portion facing the opening but also the portion that does not face the opening can be removed. The exhaust port of the part exhausts the air from the whole. In this way, since the dust can be captured by the entire filter, the dust collection efficiency is improved.

The filter 20 may also be formed of a material containing polyurethane.

In addition, the opening 33 may also be covered by a filter 34 having a pleats structure.

The invention described in technical solution 6 is an electric sweeper 101 that can capture the dust contained in the air sucked from the suction port 104 to the main body 103; 101A; 101B; 101C, which is characterized in that it includes: The accommodating part 109 of the rotary dust collector 107 on the main body, which rotates the air inhaled from the suction port to separate and capture the dust contained in the air by centrifugal force, is not accommodated in the accommodating part. In the case where the rotary dust collector is used but the disposable filter 40 for capturing the air contained in the air sucked from the suction port is housed, the fixing part of the disposable filter can be fixed. 41; 48L; 48R.

According to this structure, since either a rotary dust collector or a disposable filter can be attached alternatively, convenience improves.

The invention according to claim 7 is the electric sweeper 101; 101A; 101B; 101C according to claim 6, which is characterized in that it further includes: the rotary sweeper is housed in the storage part 109. In the case of the rotary dust collector 107, the ring-shaped elastic deformation part 117C, which is elastically deformed in contact with the peripheral parts of the inlets 50 and 51 of the rotary dust collector; 217C, is fixed on the disposable filter 40 In the case of the fixing part 41; 48L, 48R, the ring-shaped protrusion 117D biting into the inner periphery of the inlet 45 of the disposable filter; the packing 117; 217 of 217C.

According to this configuration, when the rotary dust collector is installed, the inlet can be sealed by the annular elastic deformation portion, and when the disposable filter is installed, the inlet can be sealed by the annular protrusion. Therefore, when any of the rotary dust collector and the disposable filter is attached, air leakage from the peripheral edge portion of each inlet can be well prevented, and thus the dust collection efficiency is improved.

The inlets 50 and 51 of the rotary dust collector 107 may also be approximately the same size as the inlet 45 of the disposable filter 40, or may be formed larger than the inlet of the disposable filter. The elastic deformation part 117C; 217C may be arranged on the outer side of the annular protrusion 117D; 217D.

The invention according to claim 8 is the electric sweeper 101; 101A; 101B; 101C according to claim 7, characterized in that the annular protrusion 117D; 217D has a convex curved shape in cross section.

For example, the rotary dust collector and the disposable filter are accommodated in the accommodating portion so as to slide along the radial direction of the respective inlets, and the peripheral portions of the respective inlets are in contact with the packing.

According to this configuration, since the annular protrusion has a convex curved cross-section, when the rotary dust collector or the disposable filter is slid into the housing, even if the peripheral edge of the inlet interferes with the annular protrusion, it can be moved along the Going across the convex curved surface of the ring-shaped protrusion. Therefore, a rotary dust collector or a disposable filter can be satisfactorily installed.

The invention according to claim 9 is the electric sweeper 101; 101A; 101B; 101C according to claim 7 or 8, characterized in that the annular elastic deformation part 217C is disposed on the annular On the outer side of the protrusion 217D, on at least a part of the outer side end of the annular elastic deformation part (for example, the front side end in the insertion direction of the rotary dust collector or the disposable filter), The rotary dust collecting device 107 or the disposable filter is formed to extend outwardly from the annular elastic deformation portion, and toward and accommodated in the accommodating portion 109 as it moves toward the head end. 40, the guide portion 217E is curved on the opposite side.

According to this structure, when the rotary dust collector or the disposable filter is installed, the rotary dust collector or the disposable filter (the peripheral edge of the inlet) inserted into the accommodating part can be moved along the direction of the guide part. The curved surfaces are in sliding contact and are well guided to the side of the annular elastic deformation portion. Therefore, it is better to install a rotary dust collector or a disposable filter.

The invention described in technical claim 10 is the electric sweeper 101; 101A; 101B; 101C described in any one of technical claims 6 to 9, characterized in that the fixing part includes a A pair of locking protrusions 43; 48L, 48R of the permanent filter 40, when the rotary dust collector 107 is accommodated in the housing portion 109, the inlet pipe 51 forming the inlet of the rotary dust collector is just will pass between the 1 pair of locking protrusions.

According to this structure, when the disposable filter is accommodated in the housing portion, the disposable filter can be locked using a pair of locking protrusions, and when the rotary dust collector is accommodated in the housing portion, the formation of the disposable filter can be prevented. When the inlet pipe of the inlet of the rotary dust collector interferes with a pair of locking protrusions for locking the disposable filter. Therefore, a rotary dust collector or a disposable filter can be satisfactorily installed.

Like the invention described in claim 11, the fixing portion may include a locking member 41 formed with the pair of locking protrusions 43 and held rotatably, and the disposable filter may be fixed to the fixing portion. 40, by rotating the locking member, the disposable filter can be locked on the pair of protrusions.

In addition, like the invention described in claim 12, the pair of locking protrusions 48L, 48R may be configured to align both end portions in a direction perpendicular to the attaching and detaching direction of the disposable filter 40 along the Components guided in the disassembly direction.

The invention according to claim 13 is the electric sweeper 101B or 101C according to any one of claims 6 to 12, characterized in that it includes a storage part cover 113 for opening and closing the storage part 109 . In the state where the rotary dust collector 107 is not housed in the housing part and the disposable filter 40 is not fixed in the fixing part 41; 48L, 48R, the housing part cover is prevented from is closed, and in the state where the rotary dust collector is housed in the housing part and the disposable filter is fixed in the fixing part, the housing part cover is allowed to be closed The stop block 80; 90.

According to this configuration, the housing cover can be closed when either the rotary dust collector or the disposable filter is installed, but if neither the rotary dust collector nor the disposable filter is installed , the containment cover cannot be closed. Therefore, since the operation of the electric sweeper can be prevented from being started in a state where neither the rotary dust collector nor the disposable filter is attached, convenience is improved.

Like the invention described in claim 14, the stopper 90 may be disposed in the housing portion 109, and when the rotary dust collector 107 is accommodated in the housing portion, the When the said disposable filter 40 is fixed in the fixing part 41, the force from the said disposable filter can be used to displace from the initial position. The stopper prevents the housing portion cover 113 from being closed when it is located at the initial position. In the displaced state, the housing cover is allowed to be closed.

In addition, like the invention described in claim 15 , the stopper 80 may be mounted on the housing portion cover 113 so as to be in contact with the fixing portion 41 and not housed in the housing portion 109 . The rotary dust collector 107, and in the state where the disposable filter 40 is not fixed in the fixed part, when the housing part cover is closed, the stopper comes into contact with the fixed part , to prevent the cover of the storage part from being closed. In the case where the rotary dust collector is stored in the storage part, when the cover of the storage part is closed, the stop block The action force of the dust collecting device is displaced so that the stopper does not come into contact with the fixing part, and the housing part cover is allowed to be closed, in the state where the disposable filter is fixed in the fixing part The fixing portion is displaced to a fixing position for fixing the disposable filter so that the stopper does not come into contact with the fixing portion, thereby allowing the housing portion cover to be closed.

The invention described in technical solution 16 is the electric sweeper 101; 101A; 101B; 101C described in any one of technical solutions 6 to 15, which is characterized in that the rotary dust collecting device 107 includes A plurality of members 52A, 52B are formed to be hollow and the housing 52 inside which can rotate the air sucked in from the suction port 104, on the plurality of members, on the parts that are bonded to each other Ribs 64A, 64B for bonding are protrudingly formed, and a cleaning tool that can be used for cleaning the rotary dust collector can be held by using the cleaning tool holder 65 formed by a part of the ribs for bonding. 66.

According to this structure, since the cleaning appliance is not kept on the wall of the storage room, but is held by the rotary dust collector, when the disposable filter is installed, it is possible to prevent the disposable filter from being held in the storage room. Defects such as damage caused by contact with cleaning appliances on the wall.

In addition, since the cleaning tool holding portion is formed by a part of the bonding rib, the cleaning tool can be held with a simpler configuration than a configuration in which the cleaning tool holding portion is provided independently.

The invention described in claim 17 is installed on the electric sweeper 101; 101A; 101B; 101C, and can use the dust contained in the air by rotating the air sucked from the suction port 104 of the electric sweeper. The rotary dust collector 107 that is collected by centrifugal force separation is characterized by including a housing 52 that is made hollow by bonding a plurality of members 52A, 52B and that can rotate the air sucked in from the suction port inside. Among the plurality of members, bonding ribs 64A, 64B are protrudingly formed on the parts to be bonded to each other, and a leg member 65 formed by extending a part of the bonding ribs can be used. Hold the enclosure upright.

According to this structure, even when the rotary dust collector is removed from the electric sweeper and placed on the ground during cleaning of the rotary dust collector, etc., since a part of the rib for delayed bonding can be used to form a The outriggers are kept upright, so that the rotary dust collector can be prevented from being turned over and the dust stored in it from being scattered. Therefore, the operability at the time of removing the dust remaining in the rotary dust collector can be improved.

In addition, since the leg member is formed by extending a part of the bonding rib, the rotary dust collector can be held upright with a simple structure compared to a structure in which the leg member is provided independently.

The invention according to claim 18 is the rotary dust collector 107 according to claim 17, characterized in that, on the cover 52, there is formed a The inlet 50 for feeding into the housing is directed substantially horizontally or upward when the housing is held upright by the leg member 65 .

According to this configuration, it is possible to prevent the dust remaining in the rotary dust collector from being scattered from the inlet in a state in which the rotary dust collector is held upright using the leg members. Therefore, the operability at the time of removing the dust remaining in the rotary dust collector can be further improved.

The invention described in claim 19 is installed on the electric sweeper 101; 101A; 101B; 101C, and can use the dust contained in the air by rotating the air sucked from the suction port 104 of the electric sweeper. Centrifugal force separates and captures, and the air that has captured the dust is discharged from the exhaust port 53. The feature is that it includes: it is made hollow and can be used to discharge the dust from the suction port. The outer cover 52 that the sucked air rotates, the main filter 54 that covers the exhaust port and captures the dust contained in the air discharged from the exhaust port, and the filter holder for holding the main filter. The member 55 is a pressing frame 58 capable of pressing and holding the peripheral portion of the pre-filter arranged on the upstream side of the main filter and sandwiched between the housing and the filter holding member.

According to this configuration, since the air flowing into the housing on the exhaust port side passes through the front filter (such as tissue paper) before passing through the main filter, most of the dust contained in the air is captured by the front filter. At this time, when the dust retained in the housing is removed, the dust in the housing can be easily removed by opening (for example, rotating) the filter holding member to open the housing, and by rotating the push frame, the front The front filter can be removed and discarded by loosening the peripheral part of the filter. According to such a configuration, since dust hardly adheres to the main filter, the work of removing the dust adhered to the main filter is omitted, and convenience is improved.

The invention according to claim 20 is the rotary dust collecting device 107 according to claim 19, characterized in that, on the push frame 58, there is formed a hole for rotatably mounting the push frame. A pair of rotating shafts 63 is formed with a pair of through holes 61 for respectively penetrating the pair of rotating shafts in one side 52 of the housing 52 and the filter holding member 55, and a pair of through holes 61 for passing through the pair of rotating shafts are formed in the other side 55. The pair of insertion holes 62 are inserted into the ends of the pair of rotation shafts that respectively pass through the pair of through holes.

According to this configuration, by inserting the pair of rotating shafts through the corresponding through-holes, and then inserting the ends thereof into the corresponding insertion holes for installation, it is possible to make it difficult to disengage from the installed state. In particular, since a pair of rotating shafts can be mounted across two members, namely, the housing and the filter holding member, it is difficult to leave the mounted state. Therefore, a more robust rotary dust collecting device can be provided.

In addition, since a pair of rotating shafts can be passed through/inserted into the corresponding through holes and insertion holes, compared with the configuration in which the rotating shaft is mounted using a fixing tool such as an E-ring, no burr is exposed to the outside, and it is more convenient. for safety.

Description of drawings

1 is a cross-sectional view of an electric sweeper according to Embodiment 1 of the present invention when cut along a vertical plane along the front-rear direction, as seen from the right side.

Fig. 2 is a cross-sectional view of the section of the electric sweeper seen from above when it is cut on a horizontal plane.

Fig. 3 is a perspective view of the filter holding member seen obliquely from above on the front side.

4 is a perspective view showing a state in which a filter holding member and a filter held by the filter holding member are cut along a horizontal plane.

5 is a cross-sectional view of the electric sweeper according to Embodiment 2 of the present invention when it is cut along a vertical plane along the front-rear direction, as seen from the right side.

Fig. 6 is a plan view of the electric sweeper, showing a state where the dust collecting cover is removed.

Fig. 7 is a cross-sectional view of the electric sweeper seen from the right side when it is cut along a vertical plane along the front-rear direction, and shows a state in which the disposable filter is attached.

Fig. 8 is a front view of a dust collecting device that can be mounted on the electric sweeper.

Fig. 9 is a right side view of the dust collecting device.

Fig. 10 is a sectional view of part A shown in Fig. 8 .

Fig. 11 is a cross-sectional view of the electric sweeper seen from the right side when it is cut along a vertical plane along the front-rear direction, and shows a state in the middle of attaching the dust collector.

Fig. 12 is a cross-sectional view of the electric sweeper seen from the right side when it is cut along a vertical plane along the front-rear direction, and shows a state in which the dust collector is attached.

Fig. 13 is a diagram showing a deformation mode of the gasket when the dust collector and the disposable filter are attached.

Fig. 14 is a diagram showing a modified example of the gasket.

Fig. 15 is a plan view of an electric sweeper according to Modification 1 of Embodiment 2, showing a state in which a dust collecting cover is removed.

16 is a cross-sectional view of the electric sweeper according to Modification 2 of Embodiment 2 when it is cut on a vertical plane along the front-rear direction as seen from the right side, showing that neither the dust collector nor the disposable filter is blocked. The status of the installation.

Fig. 17 is a sectional view of the dust collecting hood seen along line D-D shown in Fig. 16 .

Fig. 18 is a cross-sectional view of the electric sweeper seen from the right when it is cut along a vertical plane along the front-rear direction, and shows a state in which the disposable filter is attached.

Fig. 19 is a cross-sectional view of the electric sweeper taken along a vertical plane along the front-rear direction as seen from the right side, showing a state in which the dust collecting hood is closed with the dust collecting device attached.

Fig. 20 is a cross-sectional view of the electric sweeper seen from the right side when it is cut along a vertical plane along the front-rear direction, showing a state in which the dust collection cover is completely closed with the dust collection device installed. .

21 is a cross-sectional view of an electric sweeper according to Modification 3 of Embodiment 2 when it is cut on a horizontal plane as seen from above, and shows a state where neither a dust collector nor a disposable filter is attached.

Fig. 22 is a sectional view taken along line E-E shown in Fig. 21, showing a state where neither the dust collector nor the disposable filter is installed.

Fig. 23 is a cross-sectional view taken along line E-E shown in Fig. 21, showing the state after the disposable filter is installed.

Fig. 24 is a cross-sectional view of the electric sweeper when it is cut on a horizontal plane as seen from above, and shows a state in which a dust collector is attached.

Fig. 25 is a sectional view taken along the line F-F shown in Fig. 24, showing the state after the dust collector is installed.

Among them, 1 electric sweeper, 3 main body, 4 suction port, 7 dust collection device, 9 dust collection chamber, 9B rear wall, 18B filter holding member, 19 exhaust port, 20 filter, 25 vertical plate part, 32A vertical Rib, 32B transverse rib, 32C peripheral rib, 33 opening, 35 guide way, 40 disposable filter, 41 locking member, 43 locking protrusion, 45 inlet, 48L, 48R bend, 50 inlet, 51 inlet Tube, 52 Cover, 52A Front Member, 52B Rear Member, 53 Exhaust Port, 54 Filter, 55 Filter Holder, 58 Push Frame, 61 Through Hole, 62 Insertion Hole, 63 Rotary Shaft, 64A, 64B Adhesion With ribs, 65 leg member, 66 cleaning appliance, 80 stop block, 90 stop block, 101, 101A, 101B, 101C electric sweeper, 103 main body, 104 suction port, 107 dust collection device, 109 dust collection chamber , 113 dust collection cover, 117 liner, 117C annular elastic deformation part, 117D annular protrusion, 217 liner, 217C annular elastic deformation part, 217D annular protrusion, 217E guide part

Detailed ways

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

1 is a cross-sectional view of an electric sweeper 1 according to Embodiment 1 of the present invention when cut along a vertical plane along the front-rear direction, as seen from the right side. FIG. 2 is a cross-sectional view of the electric sweeper 1 when it is cut on a horizontal plane, as seen from above. The left side in FIG. 1 is defined as the front, the right side is defined as the rear, the upper side in FIG. 2 is defined as the left side, and the lower side is defined as the right side.

Referring to Fig. 1 and Fig. 2, this electric sweeper 1 is provided with: the main body 3 that has electric blower 2, one end is inserted in the suction port 4 that is formed in the front end portion of this main body 3 connecting hose 5 (in Fig. 2 , omit connecting hose 5.). The connecting hose 5 is an elongated tubular member at least partially formed into an accordion shape, and a suction unit (not shown) is attached to the other end. When cleaning, the suction part is moved along the ground while the electric blower 2 provided on the main body 3 is driven, and the dust on the ground is sucked from the suction part together with air. The air sucked in from the suction part flows into the main body 3 from the suction port 4 through the connecting hose 5 . A plurality of wheels 6 are mounted on the lower part of the main body 3, and the main body 3 can be moved along the ground by rolling these wheels 6 along the ground.

The electric sweeper 1 may be equipped with a rotary dust collector 7 that rotates the air sucked in through the suction port 4 and separates and captures dust contained in the air by centrifugal force. In the rear side of the main body 3, a blower housing chamber 8 for housing the electric blower 2 is formed, and in the front side of the main body 3, a dust collection chamber 9 for housing the dust collecting device 7 is formed. The electric blower 2 is arranged in the space of about two-thirds of the right side in the blower housing chamber 8, and the space of about one-third of the left side in the blower housing chamber 8 is formed to house the electric sweeper 1 from the outside. The cable receiving part 11 of the power supply cable 10 for supplying electric energy. In the cable housing portion 11, a cable winding wheel 12 is rotatably arranged around a rotating shaft 12A extending in the left-right direction. When the electric cleaner 1 is not in use, the power cable 10 can be wound on the cable reel. It is housed in the cable housing portion 11 in the state of winding the outer peripheral surface of the wheel 12 .

The upper surface of the dust collecting chamber 9 is opened, and the upper surface opening can be covered with the dust collecting cover 13 . A substantially circular opening 14 communicating with the suction port 4 is formed on the front wall 9A that defines the front surface of the dust collecting chamber 9 . The opening 14 is formed so as to face slightly upward with respect to the vertical plane, that is, so as to incline toward the front side as it goes upward. An inlet 15 for air into the dust collecting chamber 9 is formed in a substantially circular shape on the front surface of the dust collector 7 , and a cylindrical inlet pipe 16 is formed protruding forward from the inlet 15 . The front end edge of the inlet pipe 16 is formed so as to incline toward the front side as it goes upward, corresponding to the inclination of the opening 14 . The dust collecting device 7 is inserted into the dust collecting chamber 9 through the opening from above with the dust collecting hood 13 opened. By making the front end edge of the opening 14 and the inlet pipe 16 into a shape inclined relative to the vertical plane as described above, even when the dust collecting device 7 is inserted into the dust collecting chamber 9 facing vertically downward, the opening 14 can be prevented from being deformed. The peripheral portion interferes with the inlet pipe 16 . At the peripheral portion of the opening 14, an approximately annular gasket 17 is installed. With the dust collecting device 7 housed in the dust collecting chamber 9, the front end edge of the inlet pipe 16 is pressed against the gasket 17. , the gap between the opening 14 and the front edge of the inlet pipe 16 will be sealed.

The dust collector 7 is provided with, for example, a resin-made hollow housing 18 in which air can be rotated, and is used to pass air discharged from an exhaust port 19 formed on the rear surface of the housing 18 to pass the air. The filter 20 which captures the dust contained in the filter 20, and the filter holding member 18B which surrounds the outer periphery of the filter 20 and holds it. The filter 20 is formed of, for example, a material containing polyurethane.

The above-mentioned inlet 15 is formed on the front surface of the housing 18, and the above-mentioned inlet pipe 16 is formed to protrude forward from the inlet 15. As shown in FIG. Inside the housing 18, a swirling flow path 21 is defined by a partition wall. More specifically, the air entering the housing 18 from the inlet 15 rotates clockwise around the rotation axis 22 (see FIG. 2 ) along the rotation flow path 21 as viewed from the front side. The terminal portion of the swirling flow path 21 communicates with a dust collecting portion 23 that widens toward the immediately upstream side (directly front side) of the exhaust port 19 .

The dust contained in the air flowing into the housing 18 from the inlet 15 will pass through the outer side (with respect to the rotation axis 22) of the rotating flow path 21 due to centrifugal force during the rotation along the rotating flow path 21. radially outer side). Inside the housing 18 , a substantially cylindrical filter 24 is arranged along the rotation axis 22 (see FIG. 2 ). The filter 24 is, for example, a mesh filter formed by bonding metal wires in a lattice. The rear end of the filter 24 faces the immediately upstream side of the exhaust port 19 of the dust collecting part 23 . With this structure, although the dust contained in the air rotating along the rotating flow path 21 rotates on the outer side in the rotating flow path 21, it is guided to the dust collecting part 23 without passing through the filter 24, but it is Part of the air (air from which dust has been separated) rotating on the inner side (rotation axis 22 side) in the flow path 21 passes through the filter 24, passes through the filter 24, and is guided directly upstream of the exhaust port 19. side. Therefore, since the dust contained in the air flowing into the housing 18 from the inlet 15 can be separated by centrifugal force and captured by the dust collecting part 23, and the dust-separated air can be guided to the exhaust port 19 side through the filter 24, Therefore, dust can be well captured.

FIG. 3 is a perspective view of the filter holding member 18B seen obliquely from above on the front side. In addition, FIG. 4 is a perspective view showing a state in which the filter holding member 18B and the filter 20 held by the filter holding member 18B are cut along a horizontal plane.

Referring to FIGS. 3 and 4 , the filter holding member 18B is made of resin, for example, and is formed by integrating a substantially rectangular rear plate portion 25 and an annular side plate portion 26 protruding forward along the outer peripheral edge of the rear plate portion 25 . Formed and constituted. The outer peripheral surface of the filter 20 is fitted into the filter holding member 18B along the inner peripheral surface of the annular side plate portion 26 , and when the filter holding member 18B is inserted, the front surface of the filter 20 is aligned with the edge of the annular side plate portion 26 . The leading edge becomes approximately the same plane. A positioning protrusion 27 is formed on the inner peripheral surface (lower left corner) of the annular side plate portion 26 , and a concave portion 28 is formed at a position (lower left corner) of the filter 20 corresponding to the positioning protrusion 27 . Therefore, by fitting the filter 20 into the filter holding member 18B so that the positioning protrusions 27 enter the recesses 28, the filter 20 can be attached without confusing the front and back and the up, down, left, and right orientations.

Attachment portions 29 for rotatably attaching the filter holding member 18B to the housing 18 are formed at both left and right end portions of the lower end edge of the annular side plate portion 26 . In addition, an operation portion 30 is protrudingly formed at a central portion in the left-right direction of the upper end edge of the annular side edge portion 26 . In the case of removing the dust remaining in the dust collecting device 7 (inside the outer cover 18), after opening the dust collecting cover 13 and pulling the dust collecting device 7 out of the dust collecting chamber 9, by turning the operation part 30 to the rear side, Pulling and rotating the filter holding member 18B around the mounting portion 29 can open the inside of the housing 18 . Thereafter, in this state, the dust in the housing 18 can be easily removed, and the filter 20 can be removed from the filter holding member 18B to remove the dust adhering to the filter 20 .

On the rear plate portion 25 of the filter holding member 18B, an approximately rectangular opening 31 is formed, and in the opening 31, a plurality of rod-shaped materials (longitudinal ribs 32A) extending in the up and down direction are arranged in a grid pattern and A plurality of rod-shaped materials (horizontal ribs 32B) extending in the direction of the filter 20 form a plurality of ventilation holes for passing the air discharged from the exhaust port 19 through the filter 20 . The front surface of each horizontal rib 32B protrudes forward further than the front surface of each vertical rib 32A. In addition, an annular rib (peripheral rib 32C) protruding forward is formed on the peripheral portion of the opening 31 . The front surface of the peripheral rib 32C protrudes forward further than the front surface of each lateral rib 32B. With this structure, in the state where the filter 20 is inserted into the filter holding member 18B, the front surface of each lateral rib 32B is in contact with the rear surface of the filter 20, so that the peripheral rib 32C bites into the rear surface of the filter 20. peripheral part. In this state, the rear surface of the filter 20 is spaced apart from the vertical rib 32A at a predetermined interval (for example, about 6 mm).

Referring again to FIGS. 1 and 2 , when the dust collecting device 7 is inserted into the dust collecting chamber 9 , the rear surface of the filter holding member 18B is in contact with the rear wall 9B defining the dust collecting chamber 9 . In the part from the center to the right side of the rear wall 9B (the part facing the space where the electric blower 2 is arranged in the blower housing chamber 8), the filter 20 (exhaust port 19) is smaller in area than the filter 20 (exhaust port 19). The area is formed with an approximately rectangular opening 33 . The opening 33 is a portion connecting the dust collecting chamber 9 and the blower housing chamber 8 , and faces the suction port 2A of the electric blower 2 arranged in the blower housing chamber 8 . The opening 33 is covered, for example, with a filter 34 having a pleated structure in which filter paper is arranged in a bellows shape.

In this embodiment, in order to make the air inhaled from the suction port 4 of the main body 3 rotate well and improve the dust collection efficiency, the dust collection device 7 (cover 18) is arranged as large as possible (from the left end to the bottom of the dust collection chamber 9). In a wide range on the right end), and in order to discharge air well from the dust collector 7, the exhaust port 19 is formed larger (over the entire rear of the dust collector 7). If the exhaust port 19 is formed large, the filter 20 covering the exhaust port 19 can also be formed large, and thus clogging of the filter 20 can be suppressed.

On the other hand, in the blower housing chamber 8 adjacent to the back wall 9B at the rear of the dust collecting chamber 9, a space for arranging components other than the electric blower 2 (such as for arranging the cable winding wheel 12) is required. Therefore, the opening 33 formed on the rear wall 9B must be smaller than the exhaust port 19. In this case, although the air can pass through the filter 20 from the part facing the opening 33 of the entire exhaust port 19 and flow toward the opening 33 well, the flow of air in the part not facing the opening 33 will get worse.

In this embodiment, by separating the rear surface of the filter 20 from the longitudinal rib 32A, a guide for guiding the air discharged through the filter 20 from the part of the exhaust port 19 that does not face the opening 33 is formed. The guide path 35 on the opening 33 side. Therefore, since the air circulation of the part of the exhaust port 19 that does not face the opening 33 can be ensured by the guide passage 35, the reduction of the suction force can be suppressed and the dust collection efficiency can be improved.

Especially, since the back of the filter holding member 18B is in contact with the rear wall 9B, the dust collecting device 7 can be firmly fixed in the dust collecting chamber 9, and the filter 20 formed between the longitudinal rib 32A and the filter 20 can be utilized to The space between them constitutes the guide path 35.

In addition, by biting the peripheral rib 32C formed on the filter holding member 18B into the rear of the filter 20, it is possible to prevent a gap from being generated between the peripheral portion of the filter 20 and the filter holding member 18B. Therefore, the peripheral rib 32C can prevent dust from leaking out of the dust collecting device 7 through between the peripheral portion of the filter 20 and the filter holding member 18B by functioning as a partition wall.

In addition, in this embodiment, since the vertical rib 32A and the lateral rib 32B as the filter cover are integrally formed on the filter holding member 18B, the number of parts can be reduced and the manufacturing cost can be reduced.

Moreover, in this embodiment, the part (left part) which does not face the opening 33 in the dust collecting part 23 is formed narrower than the part (right part) which faces the opening 33 . Moreover, the space of the dust collecting part 23 is formed so that the cross-sectional area may become gradually small toward the part which does not face the opening 33 (refer FIG. 2). In general, the air swirling in the dust collector 7 tends to flow into a narrower space. Since the above-mentioned configuration is adopted, the air is actively guided to the exhaust port 19 where the circulation of the air is poor. The side of the portion facing the opening 33 can discharge air from the entire exhaust port 19 including not only the portion facing the opening 33 but also the portion not facing the opening 33 . Like this, because collected dust just is led to narrow space, can make it accumulate slowly from the space that does not face with opening 33, finally can use filter 20 whole to capture dust, so dust collection efficiency improves.

The configuration of the dust collector 7 is not limited to the configuration described above, and may have the same configuration as the dust collector 107 of Embodiment 2 described in detail using FIGS. 8 to 10 later.

5 is a cross-sectional view of electric sweeper 101 according to Embodiment 2 of the present invention when cut along a vertical plane along the front-rear direction, as seen from the right side. Fig. 6 is a plan view of the electric sweeper 101, showing a state in which the dust collecting cover 113 is removed. The left side in FIG. 5 is defined as the front, the right side is defined as the rear, the upper side in FIG. 6 is defined as the left side, and the lower side is defined as the right side.

5 and 6, the electric sweeper 101 has a main body 103 with an electric blower 102, so that one end of a connecting hose (not shown) can be inserted into the suction port 4 formed at the front end of the main body 103. . The connection hose is an elongated tubular member at least partially formed into a bellows shape, and a suction unit (not shown) is attached to the other end. When cleaning, the suction part is moved along the floor while driving the electric blower 102 provided on the main body 103, and the dust on the floor is sucked from the suction part together with air. The air sucked from the suction part flows into the main body 103 from the suction port 104 through the connection hose. A plurality of wheels 106 are mounted on the lower part of the main body 103, and the main body 103 can be moved along the ground by rolling the wheels 106 along the ground.

One of the characteristics of this electric sweeper 101 is that it is a rotary dust collector 107 ( 5, 6, not shown), a general commercially available disposable filter 40 such as a paper bag (not shown in Figs. 5, 6) is configured in an alternative manner of installation. According to such a structure, since a user can install either the dust collector 107 or the disposable filter 40 according to preference, convenience improves.

A blower housing chamber 108 for housing the electric blower 102 is formed on the rear side of the main body 103 , and a dust collection chamber 109 for housing the dust collector 107 or the disposable filter 40 is formed at the front side of the main body 103 . When the electric sweeper 101 is not in use, a power supply cable 110 for supplying electric energy to the electric sweeper 101 from the outside can be housed in a coiled state in the left part of the blower housing chamber 108 .

The upper surface of dust collecting chamber 109 is opened, and the upper surface opening can be covered with dust collecting cover 113 . The dust collecting cover 113 is rotatably installed on the main body 103 with its rear end, and by making the dust collecting cover 113 rotate, the dust collecting chamber 109 can be opened and closed (in FIG. state.). A substantially circular opening 114 communicating with the suction port 104 is formed on the front wall 109A that defines the front surface of the dust collecting chamber 109 . The opening 114 is formed so as to face slightly upward with respect to the vertical plane, that is, so as to incline toward the front side as it goes upward. A substantially annular spacer 117 is attached to the peripheral portion of the opening 114 .

In the front end upper portion of the dust collection chamber 109 (the front end portion of the top opening), when the disposable filter 40 is accommodated in the dust collection chamber 109, it can be rotated around a rotation shaft (not shown) extending in the left and right direction. A locking member 41 for fixing the disposable filter 40 is installed securely. The locking member 41 is formed by integrating a base 42 extending in the left-right direction, a pair of locking protrusions 43 protruding rearward from both left and right ends of the base 42 , and an operation portion 44 protruding upward from the center of the base 42 in the left-right direction. formed and constituted. The lock member 41 is biased clockwise in FIG. 5 by an elastic member such as a spring, and is held at the position (initial position) shown in FIG. 5 without the disposable filter 40 being fixed. A claw portion 43A for hooking the upper end edge of the disposable filter 40 protrudes from the lower surface of the pair of locking protrusions 43 .

FIG. 7 is a cross-sectional view of the motorized cleaner 101 when cut along a vertical plane along the front-rear direction as seen from the right side, and shows a state in which the disposable filter 40 is attached.

As shown in FIG. 7 , the disposable filter 40 includes a substantially rectangular flat cardboard 40A, and a bag-shaped filter paper filter 40B having an opening fixed to the rear surface of the cardboard 40A. A substantially circular inlet 45 having a shape corresponding to the opening 114 is formed at the center of the cardboard 40A, and the rear side of the inlet 45 is covered with a filter paper filter 40B.

Referring to FIGS. 5 to 7 , on the left and right sides of the front wall 109A of the dust collecting chamber 109, there are protrudingly formed guides for disassembling the disposable filter 40 on the dust collecting chamber 109 in a manner extending in the up and down direction. A pair of guide members 46 that guide the left and right edges of the cardboard 40A. In addition, at the front end portion of the bottom surface of the dust collection chamber 109, a protrusion is formed to prevent the lower end edge of the hard paper 40A of the disposable filter 40 from moving backward when the disposable filter 40 is installed in the dust collection chamber 109. 1 pair of stop blocks 47 for lateral offset.

In the case of accommodating the disposable filter 40 in the dust collecting chamber 109, at first, by pulling the operation part 44 forward, the locking member 41 is rotated counterclockwise in FIG. exit in the insertion path of the tool 40 (hard paper 40A). Thereafter, in this state, the disposable filter 40 is inserted into the dust collecting chamber 9 from above through the upper opening, and the left and right side edges of the cardboard 40A are slid downward along the pair of guide members 46 . In this way, after the lower end edge of the hard paper 40A contacts the front side of a pair of stoppers 47 on the bottom surface of the dust collecting chamber 109, the locking member 41 is moved to the initial position side ( Clockwise in FIG. 5 ), the claws 43A of the pair of locking protrusions 43 are locked on the upper edge of the cardboard 40A. As a result, the hard paper 40A is pushed toward the liner 117 by the forward force received from the lock protrusion 43, and the peripheral edge of the front entrance 45 of the hard paper 40A is pressed against the liner 117. The gap between opening 114 and inlet 45 is sealed.

When the electric sweeper 101 is operated (the electric blower 102 is driven) with the disposable filter 40 installed, the air sucked from the suction part flows into the main body 103 through the connecting hose and the suction port 104, and passes through the port through the opening 114. 45 and is guided in the filter paper filter 40B of the disposable filter 40. Thereafter, when the air guided into the filter paper filter 40B passes through the filter paper filter 40B, dust contained in the air is captured.

FIG. 8 is a front view of a dust collector 107 that can be mounted on the electric sweeper 101 . In addition, FIG. 9 is a right side view of the dust collector 109 .

8 and 9, in front of the dust collector 107, an approximately circular air inlet 50 into the dust chamber 107 is formed, and a cylindrical inlet pipe 51 protrudes forward from the inlet 50. The front end edge of the inlet pipe 51 is formed so as to incline toward the front side as it goes upward, corresponding to the inclination of the opening 114 .

The dust collector 107 is provided with, for example, a resin-made hollow cover 52 in which air can be rotated, and is used to pass air discharged from an exhaust port 53 formed on the rear surface of the cover 52 to pass the air. The filter 54 which captures the dust contained in the filter 54, and the filter holding member 55 which surrounds the outer periphery of the filter 54 and holds it. The filter 54 is formed of, for example, a material containing polyurethane. Attachment portions 56 for rotatably attaching the filter holding member 55 to the housing 52 are formed protruding downward on both left and right sides of the lower surface of the filter holding member 55 . Further, fixing portions 57 for rotatably fixing each attachment portion 56 of the filter holding member 55 are formed protruding downward on both left and right sides of the rear end portion of the lower surface of the housing 52 .

In this embodiment, tissue paper can be sandwiched between the outer cover 52 and the filter holding member 55 (on the immediately upstream side of the filter 54), so that the cotton paper sandwiched between the outer cover 52 and the filter holding member 55 can be The peripheral portion of the paper is pressed by a metal pressing frame 58 bent along the outer periphery of the cover 52 . The left end of the pressing frame 58 is bent rightward, and the right end of the pressing frame 58 is bent leftward. Both ends of the pressing frame 58 constitute the rotating shaft 63 of the pressing frame 58, and the pressing frame 58 is rotatably attached to the left mounting part by attaching the left end (the left rotating shaft 63). 56 and the fixing part 57, the end on the right side (rotating shaft 63 on the right side) can be rotatably installed on the mounting part 56 and the fixing part 57 on the right side, and it is rotatably installed on the outer cover 52 and the filter on the holding member 55.

FIG. 10 is a sectional view of part A shown in FIG. 8 .

As shown in FIG. 10 , each mounting portion 56 formed on the filter holding member 55 includes a pair of clamping portions 56A, 56B facing each other in the left-right direction with a certain distance therebetween. In the pair of clamping parts 56A and 56B, from the lower part of the surfaces facing each other, each approximately cylindrical rotation shaft 59 protrudes along the same axis.

Each fixing portion 57 formed on the cover 52 includes an insertion portion 57A inserted between a pair of clamping portions 56A, 56B of the corresponding mounting portion 56 , and a penetration portion 57B for penetrating the rotation shaft 63 of the pressing frame 58 . At the lower end of the insertion portion 57A, a through hole 60 penetrating in the left-right direction is formed. By inserting the insertion portion 57A between a pair of clamping portions 56A, 56B of the corresponding mounting portion 56, the right side can be clamped. The rotation shaft 59 of the portion 56A is inserted into the through hole 60 from the left side, and the rotation shaft 59 of the right holding portion 56B is inserted into the through hole 60 from the right side. In this way, the filter holding member 55 can be rotatably attached to the housing 52 .

A through hole 61 penetrating in the left-right direction is formed in the lower portion of the penetrating portion 57B. In addition, an insertion hole 62 is formed on the penetrating portion 57B side of the pinching portion 56A on the penetrating portion 57B side among the pair of pinching portions 56A, 56B. Therefore, by inserting the rotating shaft 63 of the pressing frame 58 through the corresponding through hole 61 and then inserting the end thereof into the corresponding insertion hole 62 to install, the rotating shaft 63 can be held rotatably. According to such a structure, since the rotating shaft 63 can be mounted across two members of the housing 52 and the filter holding member 55, it becomes difficult to disengage from the mounted state, and a firm structure can be formed.

In addition, since the rotating shaft 63 is only inserted/inserted into the corresponding through hole 61 and the insertion hole 62, the rotating shaft 63 can be attached with a simple operation compared with a configuration using a fixture such as an E-ring.

In addition, since each end of the rotating shaft 63 is inserted into the insertion hole 62, even if there is a burr at each end, the burr will not be exposed to the outside, which is very safe.

In addition, in FIG. 10, although the attachment structure of the vicinity of the left attachment part 56 and the fixing part 57 was demonstrated, the attachment structure of the vicinity of the right attachment part 56 and the fixation part 57 also has the same structure.

In the case of removing the dust remaining in the dust collecting device 107 (in the outer cover 52), after opening the dust collecting cover 113 and pulling the dust collecting device 107 out of the dust collecting chamber 109, by making the filter holding member 55 When the rotating shaft 59 of the mounting part 56 is rotated as a center, the inside of the outer cover 52 can be opened. Thereafter, in this state, the dust in the housing 52 can be easily removed, and the filter 54 can be removed from the filter holding member 55 to remove the dust adhering to the filter 54 .

A case where the dust collector 107 is used with tissue paper sandwiched between the cover 52 and the filter holding member 55 (on the immediately upstream side of the filter 54 ), and the peripheral edge of the tissue paper is pressed by the pressing frame 58 Next, since the air in the housing 52 flowing toward the exhaust port 53 side passes through the tissue paper before passing through the filter 54, most of the dust contained in the air will be captured by the tissue paper. At this time, when the dust remaining in the dust collecting device 107 (in the housing 52) is removed, the inside of the housing 52 is opened by rotating the filter holding member 55, so that the dust in the housing 52 can be easily removed, and by Rotate the pressing frame 58 to loosen the peripheral edge of the tissue paper, and the tissue paper can be removed and discarded. According to such a configuration, since dust hardly adheres to the filter 54, the work of removing the dust adhered to the filter 54 is omitted, and convenience is improved.

Referring again to FIGS. 8 and 9 , the cover 52 is formed by bonding (for example, welding) a front member 52A constituting the front portion and a rear member 52B constituting the rear portion to each other. More specifically, on the outer peripheral edge of the rear end of the front member 52A and the outer peripheral edge of the front end of the rear member 52B, there are protrudingly formed bonding holes for bonding the front member 52A and the rear member 52B to each other over the respective entire circumferences. Ribs 64A, 64B. If these bonding ribs 64A, 64B are brought into contact with each other and a predetermined welding process is performed, the bonding ribs 64A, 64B can be welded to join the front member 52A and the rear member 52B.

In this embodiment, a pair of leg members 65 are formed by extending the portions on the left and right sides of the lower end portion of the bonding rib 64A of the front member 52A downward. With this configuration, when cleaning the dust collector 107, etc., when the dust collector 107 is removed from the electric sweeper 101 and placed on the ground, a pair of leg members 65 and the outer cover 52 can be used. The other parts (the mounting part 56 and the fixing part 57) are held upright. Therefore, since the dust collecting device 107 can be prevented from falling down and the dust remaining in the dust collecting device 107 is prevented from spilling out, the operability when removing the dust remaining in the dust collecting device 107 can be improved.

In addition, in this embodiment, by extending the lower ends of the pair of leg members 65 to the same height as the lowermost ends of the other parts of the cover 52 (the lower ends of the mounting portion 56 and the fixing portion 57), when using a pair of In a state where the leg member 65 holds the dust collector 107 upright, the inlet 50 of the dust collector 107 is substantially oriented horizontally. According to this structure, since the dust collecting device 107 can be held upright using a pair of leg members 65, the dust remaining in the dust collecting device 107 can be prevented from being scattered from the inlet 50, so that the dust remaining in the dust collecting device 107 can be further improved. Operability when collecting dust in the dust collector 107. However, it is not limited to the configuration that the inlet 50 of the dust collector 107 is basically oriented horizontally in the state where the dust collector 107 is held upright using a pair of leg members 65, and the inlet 50 may be oriented upward (including diagonally above) composition.

Moreover, in this embodiment, the cleaning tool 66 (for example, a brush) which can be used at the time of cleaning of the dust collector 107 can be hold|maintained behind one pair of leg member 65. FIG. According to this structure, since the cleaning tool 66 is not kept on the wall of the dust collection chamber 109, but is kept by the dust collection device 107, when the disposable filter 40 is installed, it is possible to prevent the disposable filter from The filter paper filter 40B of 40 is in contact with the cleaning tool 66 held on the wall surface of the dust collection chamber 109 and is damaged.

In addition, since the pair of leg members 65 is formed by extending a part of the bonding rib 64A, the dust collector 107 can be held upright with a simple structure compared to a configuration in which the leg members are provided independently. And the cleaning tool 66 can be held with a simple structure.

The above-mentioned inlet 50 is formed on the front surface of the cover 52 (front member 52A), and the above-mentioned inlet pipe 51 is formed protruding forward from the inlet 50 . Inside the housing 52, a swirling flow path 67 is defined by a partition wall. More specifically, the air entering the housing 52 from the inlet 50 rotates clockwise from the front side along the swirling flow path 67 around the rotation axis extending in the front-back direction, as indicated by the arrows in FIG. 8 . The terminal portion of the swirling flow path 67 communicates with a dust collecting portion 69 extending to the immediately upstream side (directly front side) of the exhaust port 53 .

The dust contained in the air that flows into the housing 52 from the inlet 50 is in the process of rotating along the rotating flow path 67, due to the effect of centrifugal force, it will be on the outer side in the rotating flow path 67 (with respect to the diameter of the rotating periphery 68). to the outward side) through. Inside the housing 52 , a substantially cylindrical filter 70 is arranged along the rotation axis 68 . The filter 70 is, for example, a mesh filter formed by bonding metal wires in a lattice. The rear end of the filter 70 faces the immediately upstream side of the exhaust port 53 of the dust collecting part 69 . With this structure, although the dust contained in the air rotating along the rotating flow path 67 rotates on the outer side in the rotating flow path 67, it is not passed through the filter 70 and is guided to the dust collecting part 69, but it is Part of the air (air from which dust has been separated) that rotates on the inner side (rotation axis 68 side) in the flow path 67 passes through the filter 70 , and is guided directly upstream of the exhaust port 53 after passing through the filter 70 . side. Therefore, since the dust contained in the air flowing into the housing 52 from the inlet 50 can be separated by centrifugal force and captured by the dust collecting part 69, and the dust-separated air can be guided to the exhaust port 53 side through the filter 70, Therefore, dust can be well captured.

A cover 71 that covers the front side of the filter 70 is attached to the front surface of the housing 52 (front member 52A) so as to be openable and closable. By opening the cover 71 to open the front side of the filter 70, the filter 70 can be pulled out to the front side for cleaning. A rib 72 protruding forward is formed on the side (right side) of the inlet 50 on the front surface of the cover 52 (front member 52A). The protruding rib 72 extends in the vertical direction (the dismounting direction of the dust collecting device 107 ), and its head end extends to the vicinity of the front end of the inlet pipe 51 . On the upper portion of the outer cover 52, a grip portion 73 for gripping when attaching or detaching the dust collector 107 is provided extending in the front-rear direction.

FIG. 11 is a cross-sectional view of the electric sweeper 101 seen from the right side when it is cut along a vertical plane along the front-rear direction, and shows a state in which the dust collector 107 is attached. 12 is a cross-sectional view of the electric sweeper 101 seen from the right side when it is cut along a vertical plane along the front-rear direction, and shows a state where the dust collector 107 is attached.

Referring to FIG. 11 and FIG. 12 , the dust collecting device 107 is inserted into the dust collecting chamber 109 from above through the upper opening in the state where the dust collecting cover 113 is opened. That is, dust collecting device 107 is accommodated in dust collecting chamber 109 so as to slide vertically downward (along the radial direction of inlet 50 ) relative to dust collecting chamber 109 . The distance between a pair of locking protrusions 43 of the locking member 41 is set to be greater than the outer diameter of the inlet pipe 51 of the dust collecting device 107, when the dust collecting device 107 is inserted in the dust collecting chamber 109, as shown in Fig. The inlet pipe 51 passes between the pair of locking protrusions 43 as indicated by dashed lines. According to this structure, when the disposable filter 40 is accommodated in the dust collecting chamber 109, a pair of locking protrusions 43 can be used to lock the hard paper 40A of the disposable filter 40, and when the dust collecting device 107 is accommodated When it is inside the dust collecting chamber 109 , it is possible to prevent the inlet pipe 51 of the dust collecting device 107 from interfering with the pair of locking projections 43 of the cardboard 40A for locking the disposable filter 40 . Therefore, the dust collector 107 or the disposable filter 40 can be satisfactorily attached.

In the state where the dust collecting device 107 is installed in the dust collecting chamber 109, as shown in FIG. Gap seal. As described above, the opening 114 is formed to face slightly upward with respect to the vertical plane, that is, to be inclined forward as it goes upward, and the front end edge of the inlet pipe 51 is also attached corresponding to the inclination of the opening 114 . It is formed so as to incline toward the front side as it goes upward. Therefore, even when the dust collecting device 107 is inserted vertically downward into the dust collecting chamber 109 , it is possible to prevent interference between the peripheral portion of the opening 114 and the inlet pipe 51 .

FIG. 13 is a diagram showing a deformation mode of the gasket 117 when the dust collector 107 and the disposable filter 40 are attached. Fig. 13(a) is an enlarged view of part B shown in Fig. 7, showing the deformation mode of gasket 117 during installation of disposable filter 40, and Fig. 13(b) is an enlarged view of part C shown in Fig. 12 , shows the deformation mode of the gasket 117 when the dust collector 107 is installed.

The gasket 117 is formed of an elastic member such as rubber, and is formed by fitting a cylindrical base portion 117A fitted into the opening 114, a cylindrical portion 117B protruding from the rear surface of the base portion 117A, and radially outward from the rear end of the cylindrical portion 117B. The protruding annular elastic deformation portion 117C and the annular protrusion 117D protruding rearward from the junction of the cylindrical portion 117B and the annular elastic deformation portion 117C are integrally formed and constituted. The annular protrusion 117D is formed into a convexly curved shape in cross section (an approximate arc shape in cross section).

When the disposable filter 40 is installed, as shown in FIG. 13(a), the annular protrusion 117D bites into the inner periphery of the inlet 45 of the disposable filter 40, and the front surface of the cardboard 40A (periphery of the inlet 45) part) is in contact with the entire rear surface of the elastic deformation portion 117C, forming a state in which the ring-shaped elastic deformation portion 117C is pushed forward and elastically deformed. On the other hand, the inlet pipe 51 of the dust collecting device 107 is made to be approximately the same size as the inlet 45 of the disposable filter 40, or larger than the inlet 45 of the disposable filter 40, when the dust collecting device 107 is installed In this case, as shown in FIG. 13( b ), the front end edge of the inlet pipe 51 contacts the rear surface of the annular elastic deformation portion 117C, and the annular elastic deformation portion 117C is pressed forward and elastically deformed. Utilize this kind of structure, even under the situation that any one of dust collecting device 107 and disposable filter 40 is installed, since the peripheral part of inlet 45 or the front end of inlet pipe 51 can be pushed with sufficient elastic force by gasket 117, , it is good to prevent air from leaking from the peripheral portion of the inlet 45 or the front end of the inlet pipe 51, so the dust collection efficiency is improved.

In addition, since the annular protrusion 117D has a convexly curved cross-sectional shape, when the dust collecting device 107 or the disposable filter 40 is slid into the dust collecting chamber 109, even the peripheral portion of the inlet 45 or the front edge of the inlet pipe 51 Interference with the annular protrusion 117D may be made to pass along the convex curved surface of the annular protrusion 117D. Therefore, the dust collector 107 or the disposable filter 40 can be satisfactorily attached.

Fig. 14 is a figure showing a modified example of the liner 117, and Fig. 14(a) is a view of the liner 217 of the modified example seen from the rear, and Fig. 14(b) shows a line G-G shown in Fig. 14(a) Sectional view seen by line.

Referring to FIG. 14 , the liner 217 of this modified example is made of an elastic member such as rubber, and is the same as the liner 117 of the above-mentioned embodiment. The protruding cylindrical portion 217B, the annular elastic deformation portion 217C protruding radially outward from the rear end of the cylindrical portion 217B, and the annular elastic deformation portion protruding rearward from the joint portion of the cylindrical portion 217B and the annular elastic deformation portion 217C. The protrusion 217D is integrally formed and constituted. The annular protrusion 217D is formed in a convexly curved shape in cross section (approximately arc shape in cross section).

The spacer 217 of this modified example is characterized in that the upper end portion of the annular elastic deformation portion 217C protrudes outward (upper side) than other portions to form a guide portion 217E. The guide portion 217E is formed into a curved shape so as to incline toward the front side as it goes upward.

According to this structure, in addition to the same effect as when using the gasket 117 of the above-mentioned embodiment, when the dust collector 107 or the disposable filter 40 is installed, the dust collector 107 inserted from above can be The front end edge of the inlet pipe 51 or the hard paper 40A of the disposable filter 40 slides along the curved surface of the rear surface of the guide part 217E, and is well guided to the side of the annular elastic deformation part 217C. Therefore, the dust collecting device 107 or the disposable filter 40 can be attached more favorably.

Fig. 15 is a plan view of electric sweeper 101A according to Modification 1 of Embodiment 2, showing a state in which dust collecting cover 113 is removed.

This electric cleaner 101A is characterized in that a pair of guides can be used instead of the locking member 41 shown in the second embodiment as the fixing portion for fixing the cardboard 40A of the disposable filter 40. A portion of member 46 locks cardboard 40A. Therefore, except that the locking member 41 is omitted and the shape of a pair of guide members 46 is changed, it has the same configuration as that of the second embodiment, so the same symbols are used in the drawings for the same configuration, and they are referred to as Description omitted.

Referring to FIG. 15 , the rear ends of a pair of guide members 46 (left guide member 46L and right guide member 46R) protruding rearward from the left and right sides of the front wall 109A of the dust collecting chamber 109 are respectively A shape bent approximately at right angles toward the facing guide member side is formed. That is, at the rear end portion of the left guide member 46L, a bent portion 48L bent toward the right is formed, and at the rear end portion of the right guide member 46R, a bent portion 48L bent toward the left is formed. The bending part 48R.

In the case of accommodating the disposable filter 40 in the dust collecting chamber 109, the disposable filter 40 is inserted into the dust collecting chamber 109 through the upper opening from above, so that the left and right side edges of the hard paper 40A are along a pair of guides. The guide member 46 (front surfaces of the pair of bent portions 48L, 48R) slides downward. In this way, after the lower edge of cardboard 40A is brought into contact with the front sides of the pair of stoppers 47 on the floor of dust collecting chamber 109, dust collecting cover 113 is closed. On the inner surface of the dust collection cover 113 (the surface on the side of the dust collection chamber 109 when closed), a locking portion (not shown) for locking the upper edge of the hard paper 40A of the disposable filter 40 is formed. 113, the upper edge of the hard paper 40 of the disposable filter 40 will be pushed forward by the locking portion. In this way, when the dust collecting cover 113 is closed, due to the force from the forward side of the locking portion, the hard paper 40A is pushed to the liner 117, and the peripheral edge of the front entrance 45 of the hard paper 40A is pressed against the liner. 117, the gap between the opening 114 and the inlet 45 is sealed.

In this modified example, the distance between the head ends of a pair of bending parts 48L, 48R is set to be greater than the outer diameter of the inlet pipe 51 of the dust collecting device 107, and when the dust collecting device 107 is inserted into the dust collecting chamber 109, the inlet The tube 51 passes between the pair of bent portions 48L, 48R. According to this structure, when the disposable filter 40 is accommodated in the dust collecting chamber 109, the disposable filter 40 can be locked by using a pair of bending parts 48L, 48R, and the dust collecting device 107 can be accommodated in the collecting chamber. When inside the dust chamber 109, it is possible to prevent the inlet pipe 51 of the dust collector 107 from interfering with the pair of bent parts 48L, 48R of the hard paper 40A for locking the disposable filter 40. Therefore, the dust collector 107 or the disposable filter 40 can be satisfactorily attached.

16 is a cross-sectional view of electric sweeper 101B according to Modification 2 of Embodiment 2 seen from the right when cut along a vertical plane along the front-rear direction, showing dust collector 107 or disposable filter 40. Not installed state. FIG. 17 is a sectional view of the dust collecting hood 113 seen along the line D-D shown in FIG. 16 .

In this electric sweeper 101B, it is characterized in that the dust collecting device 107 is not accommodated in the dust collecting chamber 109 by the stop block 80 provided on the dust collecting cover 113, and the cardboard 40A of the disposable filter 40 is not placed In the state fixed on the locking member 41, the dust collecting cover 113 can be prevented from being closed, and in the state where the dust collecting device 107 is housed in the dust collecting chamber 109, and the hard part of the disposable filter 40 is fixed on the locking member 41. In the state of the paper 40A, it is permissible for the dust collecting hood 113 to be closed. Therefore, since it has the same configuration as that of Embodiment 2 except for the portion related to the stopper 80 , the same reference numerals are used for the same configuration in the drawings, and description thereof will be omitted.

Referring to FIG. 16 and FIG. 17 , a mounting portion 81 for mounting a stopper 80 is protrudingly formed at the central portion in the left-right direction of the front portion of the inner surface of the dust collecting hood 113 . At the lower portion of the mounting portion 81, a rotation shaft 82 extending in the left-right direction is mounted. The stopper 80 has a long shape in the front-rear direction, and is rotatably held by a rotation shaft 82 at a position slightly forward of the center portion thereof. On the rotating shaft 82, the cylindrical portion of the torsion coil spring 83 is covered. By locking one end of the torsion coil spring 83 with the mounting portion 81, the other end is locked with the stop block 80, that is, by using The spring force of the torsion coil spring 83 applies spring force to the stop block 80 clockwise in FIG. 16 . In a state where no external force other than the elastic force from the torsion coil spring 83 acts on the stopper 80, the upper surface of the front end of the stopper 80 contacts the lower surface of the front wall 81A of the mounting portion 81, and the stopper 80 is It does not rotate further clockwise than the state shown in FIG. 16 .

When the dust collecting hood 113 is closed in this state, the operation portion 44 of the lock member 41 is located on the trajectory of the front end portion of the stopper 80 . That is, when the dust collecting device 107 is not accommodated in the dust collecting chamber 109 and the dust collecting cover 113 is closed in a state where the hard paper 40A of the disposable filter 40 is not fixed to the locking member 41, the front end of the stopper 80 By contacting the upper end of the operation part 44 of the locking member 41, the dust collecting cover 113 is prevented from being closed. At the front end of the lower surface of the stopper 80, a protrusion 80A protruding downward is formed. , the protrusion 80A may be used to prevent the operation portion 44 from going over to the front side of the stopper 80 .

FIG. 18 is a cross-sectional view of the electric sweeper 101B seen from the right side when it is cut along a vertical plane along the front-rear direction, and shows a state in which the disposable filter 40 is attached.

As shown in FIG. 18, in the state where the disposable filter 40 is installed, the upper end edge of the hard paper 40A of the disposable filter 40 is locked by a pair of locking protrusions 43, and the locking member 41 is in a state more than that shown in FIG. Position turned counterclockwise (fixed position). When the dust collecting hood 113 is closed in this state, the front end portion of the stopper 80 does not come into contact with the lock member 41 (operating portion 44 ), and the closing of the dust collecting hood 113 is allowed.

The corners of the rear end of the stopper 80 are chamfered into a gently curved shape, so that the filter paper filter 40B of the disposable filter 40 housed in the dust collection chamber 109 and the back of the stopper 80 can be prevented. The end contact may damage the filter paper filter 40B.

19 is a cross-sectional view of the electric sweeper 101B seen from the right when it is cut along a vertical plane along the front-rear direction, showing that the dust collecting cover 113 is closed in a state where the dust collecting device 107 is installed. en route status. 20 is a cross-sectional view of the electric sweeper 101B seen from the right when it is cut along a vertical plane along the front-rear direction, showing that the dust collecting cover 113 is completely closed in the state where the dust collecting device 107 is installed. the state.

As shown in Figure 19, when the dust collecting cover 113 is closed under the state that the dust collecting device 107 is accommodated in the dust collecting chamber 109, the outer cover 52 (the upper end portion of the front member 52A) of the dust collecting device 107 will be positioned at the stopper. on the track of the rear end of the block 80. That is, when the dust collecting cover 113 is closed under the state in which the dust collecting device 107 is accommodated in the dust collecting chamber 109, the rear end portion of the stopper 80 is in contact with the cover 52, and the stopper 80 is closed by the force from the cover 52. 80 resists the elastic force of the torsion coil spring 83 and rotates counterclockwise in FIG. 19 .

When the dust collecting cover 113 is further closed from the state shown in FIG. 19 , the rear end of the stopper 80 slides along the surface of the outer cover 52, and the rear end is lifted upward, and the stopper 80 Rotate counterclockwise in FIG. 10 , when the dust collecting cover 113 is completely closed, it will be in the state shown in FIG. 20 . In this way, when the dust collecting hood 113 is closed with the dust collecting device 107 installed, the stopper 80 is rotated by the force from the dust collecting device 107, so that the front end of the stopper 80 is displaced to a predetermined position. The position in contact with the locking member 41 (operating part 44 ) allows the dust collecting hood 113 to be closed.

According to this kind of structure, although under the arbitrary situation of dust collecting device 107 or disposable filter 40 being installed, dust collecting cover 113 can be closed, but when dust collecting device 107 or disposable filter 40 are not all installed. Under the situation, just can't close dust collection cover 113. Therefore, since it is possible to prevent the operation of electric sweeper 101B from being started in a state where neither dust collector 107 nor disposable filter 40 is attached, convenience is improved.

However, the mechanism for providing elastic force to the stopper 80 is not limited to the torsion coil spring 83, and may be other elastic members.

21 is a cross-sectional view of electric sweeper 101C according to Modification 3 of Embodiment 2 when viewed from above by a horizontal plane, showing a state in which neither dust collector 107 nor disposable filter 40 is attached. Fig. 22 is a cross-sectional view taken along line E-E shown in Fig. 21, showing a state in which neither the dust collector 107 nor the disposable filter 40 is attached.

This electric sweeper 101C is characterized in that the dust collecting device 107 is not accommodated in the dust collecting chamber 109 by the stopper 90 arranged in the dust collecting chamber 109, and the cardboard 40A of the disposable filter 40 is not placed In the state fixed on the locking member 41, the dust collecting cover 113 can be prevented from being closed, and in the state where the dust collecting device 107 is housed in the dust collecting chamber 109, and the hard part of the disposable filter 40 is fixed on the locking member 41. In the state of the paper 40A, it is permissible for the dust collecting hood 113 to be closed. Therefore, since it has the same configuration as that of Embodiment 2 except for the portion related to the stopper 90 , the same reference numerals are used for the same configuration in the drawings, and description thereof will be omitted.

Referring to FIGS. 21 and 22, on the right side of the front wall 109A of the dust collecting chamber 109, on the right left side of the right guide member 46R, a stopper holding member for holding the stopper 90 is installed. 91. The stopper 90 is rotatably held by a rotation shaft 92 mounted on the stopper holding member 91 extending in the left-right direction. On the front side portion of the inner surface of the dust collecting cover 113, a locking protrusion 93 that can be locked on the stopper 90 is protrudingly formed. The stopper 90 has an elongated shape in the vertical direction, and its lower portion is rotatably held by a rotation shaft 92 . On the front of the lower end of the stopper 90, a columnar protrusion 90A is formed, and by covering the rear end of the compression coil spring 94 whose front end surface is in contact with the rear surface of the stopper holding member 91 on the columnar protrusion 90A, Utilize the spring force of the compression coil spring 94 to apply spring force to the stop block 90 in the counterclockwise direction in FIG. 22 . In a state where no external force other than the elastic force from the compression coil spring 94 acts on the stopper 90, the head end of the rib 90B protruding from the front upper portion of the stopper 90 comes into contact with the rear surface of the stopper holding member 91, Therefore, the stopper 90 cannot rotate counterclockwise more than the state shown in FIG. 22 .

When the dust collecting cover 113 is closed in this state, the upper end portion of the stopper 90 is located on the track of the lower end portion of the locking protrusion 93 . That is, when the dust collecting device 107 is not accommodated in the dust collecting chamber 109, and the dust collecting cover 113 is closed in a state where the cardboard 40A of the disposable filter 40 is not fixed on the locking member 41, the lower part of the locking protrusion 93 The end surface will prevent the dust collecting cover 113 from being closed by contacting the upper end surface of the stop block 90 . At the front end and the rear end of the upper end surface of the stopper 90, respectively formed with upwardly protruding protrusions 95, even if the lower end surface of the locking protrusion 93 is in contact with the upper end surface of the stopper 90, the dust collecting cover 113 When further force is applied in the closing direction, the protrusion 95 may prevent the locking protrusion 93 from going over to the front side or the rear side of the stopper 90 .

FIG. 23 is a cross-sectional view taken along line E-E shown in FIG. 21, showing a state where the disposable filter 40 is attached.

The stopper 90 is located in the inserting path of the hard paper 40A of the disposable filter 40, and when the disposable filter 40 is installed, the hard paper 40A slides downward along the guide member 46. The front side will be in sliding contact with the rear side of the stop block 90 . Like this, in the process of installing disposable filter 40, stop block 90 utilizes the active force from disposable filter 40 (hard paper 40A), will start from the position (initial position) shown in Fig. 22, resists. The elastic force of the coil spring 94 is compressed to rotate clockwise. In addition, as shown in FIG. 23 , in the state where the disposable filter 40 is attached, the entire rear surface of the stopper 90 is in contact with the front surface of the cardboard 40A of the disposable filter 40 . When the dust collecting hood 113 is closed in this state, the lower end surface of the locking protrusion 93 does not come into contact with the upper end surface of the stopper 90, and the dust collecting hood 113 is allowed to be closed.

FIG. 24 is a cross-sectional view of the electric sweeper 101C seen from above when it is cut on a horizontal plane, and shows a state in which dust collector 107 is attached. In addition, FIG. 25 is a cross-sectional view taken along line E-E shown in FIG. 241, showing a state in which dust collector 107 is installed.

As explained using FIGS. 8 to 10 , on the side (right side) of the inlet 50 on the front of the dust collector 107 (cover 52 ), protruding forward is formed along the vertical direction (the detachment direction of the dust collector 107). ) extended rib 72. The stopper 90 is located in the insertion path of the rib 72 of the dust collecting device 107. When the dust collecting device 107 is installed, when the dust collecting device 107 is slid downward, the head end face (front end face) of the rib 72 will Will be in sliding contact with the back of the stop block 90 . In this way, in the process of installing the dust collecting device 107, the stop block 90 utilizes the active force from the dust collecting device 107 to start from the position (initial position) shown in FIG. Rotate clockwise. In addition, as shown in FIG. 25 , in the state where the dust collector 107 is attached, the entire head end surface of the rib 72 of the dust collector 107 contacts the rear surface of the stopper 90 . When the dust collecting hood 113 is closed in this state, the lower end surface of the locking protrusion 93 does not come into contact with the upper end surface of the stopper 90, and the dust collecting hood 113 is allowed to be closed.

According to this kind of structure, although under the arbitrary situation of dust collecting device 107 or disposable filter 40 being installed, dust collecting cover 113 can be closed, but dust collecting device 107 or disposable filter 40 are not all installed. Under the situation, just can't close dust collection cover 113. Therefore, since it is possible to prevent the operation of electric sweeper 101C from being started in a state where neither dust collector 107 nor disposable filter 40 is attached, convenience is improved.

However, the mechanism for providing elastic force to the stopper 90 is not limited to the compression coil spring 94, and may be other elastic members.

The present invention is not limited to the contents of the above embodiments, and various modifications can be made within the scope described in the claims.

Claims (20)

1. An electric sweeper capable of capturing dust contained in the air sucked from the suction port to the main body, characterized in that it comprises: By rotating the air sucked from the suction port, the dust contained in the air can be separated and captured by centrifugal force, and the dust-captured air is discharged from the exhaust port, a rotary dust collector, a filter covering the exhaust port for capturing dust contained in air discharged from the exhaust port, an accommodating portion formed on the main body to house the rotary dust collector and to make a wall partitioning a part thereof face the exhaust port; an opening formed on the wall surface smaller than the exhaust port to guide the air discharged from the exhaust port to a downstream side, A guide path for guiding air discharged through the filter from a portion of the exhaust port not facing the opening to a side of the opening. 2 . The electric sweeper according to claim 1 , further comprising a filter arranged on the downstream side of the filter, forming a filter for discharging air passing through the filter from the exhaust port. 3 . through the vent hole, and the filter housing whose downstream side surface is in contact with the wall surface, The guide path is formed by forming a space between the filter cover and the filter. 3. An electric sweeper capable of capturing dust contained in the air sucked from the suction port to the main body, characterized in that it comprises: By rotating the air sucked from the suction port, the dust contained in the air can be separated and captured by centrifugal force, and the dust-captured air is discharged from the exhaust port, a rotary dust collector, a filter covering the exhaust port for capturing dust contained in air discharged from the exhaust port, Arranged on the downstream side of the filter, a vent hole for passing the air discharged from the exhaust port through the filter is formed, and on the side facing the peripheral portion of the filter A filter housing is formed in part by an annular rib that bites into the filter. 4. The electric sweeper according to claim 2 or 3, wherein the rotary dust collecting device includes a filter holding member for holding the filter, and the filter cover is arranged on the A filter holding member. 5. An electric sweeper capable of capturing dust contained in the air sucked into the main body from the suction port, characterized by comprising: By rotating the air sucked from the suction port, the dust contained in the air can be separated and captured by centrifugal force, and the dust-captured air is discharged from the exhaust port, a rotary dust collector, a filter covering the exhaust port for capturing dust contained in air discharged from the exhaust port, an accommodating portion formed on the main body to house the rotary dust collector and to have a wall partitioning a part thereof face the exhaust port; an opening formed on the wall surface smaller than the exhaust port for guiding air discharged from the exhaust port to a downstream side, In the space on the upstream side of the filter in the rotary dust collector, a portion not facing the opening is narrower than a portion facing the opening. 6. An electric sweeper capable of capturing dust contained in the air sucked into the main body from the suction port, characterized by comprising: an accommodating portion of a rotary dust collector formed on the main body for accommodating dust contained in the air by rotating the air sucked in from the suction port by centrifugal force; In the case where the accommodating part does not accommodate the rotary dust collector but a disposable filter for capturing air contained in the air inhaled from the suction port, the primary filter can be fixed. The fixed part of the filter. 7. The electric sweeper according to claim 6, characterized in that, Also included is a liner that provides: When the rotary dust collector is accommodated in the housing part, the ring-shaped elastic deformation part elastically deforms in contact with the peripheral edge of the inlet of the rotary dust collector, When the disposable filter is fixed to the fixing part, the annular protrusion bites into the inner periphery of the inlet of the disposable filter. 8 . The electric sweeper according to claim 7 , wherein the annular protrusion has a convex curved section. 9. The electric sweeper according to claim 7 or 8, characterized in that, The annular elastic deformation portion is arranged on the outer side of the annular protrusion, On at least a part of the outer side end of the annular elastic deformation portion, there is formed a ring that extends to the outer side of the annular elastic deformation portion, and is directed toward and accommodated in the accommodating portion as it moves toward the head end. A curved guide part on the opposite side of the rotary dust collector or the disposable filter. 10. The electric sweeper according to any one of claims 6-8, characterized in that, The fixing part includes a pair of locking protrusions for locking the disposable filter, When the rotary dust collector is accommodated in the housing portion, an inlet pipe forming an inlet of the rotary dust collector passes between the pair of locking protrusions. 11. The electric sweeper of claim 10, wherein: The fixing portion includes a locking member formed with the pair of locking protrusions and held rotatably, When the disposable filter is fixed to the fixing portion, the disposable filter can be locked to the pair of protrusions by rotating the locking member. 12. The electric sweeper according to claim 10, wherein the pair of locking protrusions are used to align the two ends of the disposable filter in a direction perpendicular to the dismounting direction along the Components guided by the assembly and disassembly directions. 13. The electric sweeper according to any one of claims 6-8, characterized by comprising: a storage unit cover for opening and closing the storage unit, a stopper that prevents the housing unit cover from being closed in a state where the rotary dust collector is not accommodated in the housing unit and the disposable filter is not fixed in the fixing unit, In the state where the rotary dust collector is housed in the housing part and the disposable filter is fixed in the fixing part, the housing part cover is allowed to be closed. 14. The electric sweeper according to claim 13, wherein the stopper is arranged in the housing part, and when the rotary dust collector is housed in the housing part, it is When the disposable filter is fixed to the fixing part, the force from the rotary dust collector can be displaced from the initial position by the force from the disposable filter. , When the stopper is located at the initial position, the housing cover is prevented from being closed, and when the force from the initial position is generated by the force from the rotary dust collector or the disposable filter, In the displaced state, the accommodating portion cover is allowed to be closed. 15. The electric sweeper of claim 13, wherein: The stop block is installed on the housing part cover and can be in contact with the fixing part, In the state where the rotary dust collector is not housed in the housing part and the disposable filter is not fixed in the fixing part, when the housing part cover is closed, the stopper preventing the housing cover from being closed by contacting the fixed portion, When the rotary dust collector is housed in the housing part, when the housing part cover is closed, the stopper is displaced by the force from the rotary dust collector, so that The stopper is not in contact with the fixed part, allowing the housing part cover to be closed, In the state where the disposable filter is fixed in the fixing part, the fixing part is displaced to a fixing position for fixing the disposable filter so that the stopper does not contact the fixing part. contact, allowing the housing cover to be closed. 16. The electric sweeper according to any one of claims 6-8, characterized in that, The rotary dust collector includes a housing that is made hollow by bonding a plurality of members and can rotate the air sucked in from the suction port inside, On the plurality of members, protruding ribs for bonding are formed on the parts to be bonded to each other, A cleaning tool that can be used for cleaning the rotary dust collector can be held by using the cleaning tool holding portion formed by a part of the bonding rib. 17. A rotary dust collecting device, which is installed on an electric sweeper, and can rotate the air sucked from the suction port of the electric sweeper to separate and capture the dust contained in the air by centrifugal force. dust collection device, characterized in that, It includes: a housing that is made hollow by bonding a plurality of members and can rotate the air sucked in from the suction port inside, In the plurality of members, protruding ribs for bonding are formed on the parts to be bonded to each other, The cover can be held upright by using a leg member formed by extending a part of the bonding rib. 18. The rotary dust collecting device according to claim 17, characterized in that: An inlet for sending the air sucked in from the suction port into the outer cover is formed on the outer cover, In a state where the housing is held upright by the leg members, the inlet is generally oriented horizontally or upward. 19. A rotary dust collecting device which is mounted on an electric sweeper and can separate and capture the dust contained in the air by centrifugal force by rotating the air sucked in from the suction port of the electric sweeper, and A rotary dust collection device in which the air that has captured the dust is discharged from the exhaust port, and is characterized in that it includes: an outer cover that is made hollow and can rotate the air sucked in from the suction port inside, a main filter that covers the exhaust port and captures dust contained in the air exhausted from the exhaust port, a filter holding member for holding the main filter, The pressing frame may press and hold the peripheral portion of the pre-filter arranged on the upstream side of the main filter and sandwiched between the housing and the filter holding member. 20. The rotary dust collecting device according to claim 19, characterized in that: A pair of rotating shafts for rotatably mounting the pushing frame are formed on the pushing frame, One of the housing and the filter holding member is formed with a pair of through-holes through which the pair of rotation shafts respectively pass through, and the other is formed with a pair of through-holes for inserting through the pair of through-holes. A pair of insertion holes at ends of the pair of rotating shafts.

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