JP2010022769A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a low-cost and compact vacuum cleaner which is capable of simultaneously cleaning a floor surface and sucking floating dust and is excellent in handleability. <P>SOLUTION: The vacuum cleaner has a cleaner body 100 including: a first suction inlet 8 to which a suction tool 95 for sucking dust on the floor surface is connected; a dust collecting part 21 provided more on the air flow downstream side than the first suction inlet 8 and communicating with the first suction inlet 8; and a motor-driven blower 31 communicating with the dust collecting part 21, for generating suction air. On the cleaner body 100, a second suction inlet 13 communicating with the dust collecting part 21 or the air flow upstream side of the dust collecting part 21 is formed, and the air sucked from the first suction inlet 8 and the air sucked from the second suction inlet 13 pass through the dust collecting part 21. The second suction inlet 13 is provided with an opening/closing means 40 for opening and closing the second suction inlet 13, and a spring 46 for urging the opening/closing means 40 from the inside of the cleaner body 100 to the outside and opening the second suction inlet 13. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner that also has a function of sucking dust floating in the air.

  A vacuum cleaner is used to remove dust such as pollen, allergen, and dust adhering to a floor surface such as a carpet. However, during the cleaning operation, dust adhering to the floor surface may be scattered in the air due to the user's walking operation or the like. Since dust scattered in the air continues to float in the vicinity of the floor for a long time, infants or the like whose mouth and nose are low are likely to inhale dust scattered in the air. Dust sucked into infants and the like may be one of the causes of developing allergies such as hay fever and atopic dermatitis. For this reason, it is necessary to collect dust floating in the air, and conventionally, an electric vacuum cleaner having a function of sucking dust floating in the air (hereinafter referred to as floating dust) has been proposed.

  As such a conventional vacuum cleaner having a function of sucking floating dust, for example, “When used as a vacuum cleaner, a plug (not shown) of the power cord 9a is connected to an outlet and the operation handle 29 is turned. The switching valve 90 is operated to rotate clockwise to open the through hole 25a, and the valves 91 and 92 are operated to close the through hole 26a. Then, a drive switch (not shown) of the cleaning electric blower 60 is operated. Next, the case of using as an air purifier will be described, which can be used as an air purifier for quiet air purifying in a quiet state, such as during sleep, There are two modes: rapid cleaning to clean the air: First, when using in a quiet cleaning mode, the plug of the power cord 9a is connected to an outlet and is operated. The handle 29 is turned to turn the switching valve 90 counterclockwise to close the through hole 25a and operate the valves 91 and 92 to open the through hole 26a. The driving switch of the blower 70 is closed, and in the case of rapid cleaning, the operation handle 29 is rotated to rotate the valve means 90 counterclockwise, the valve 91 closes the through hole 25a and the valve 92 The through-hole 26a is then opened, and then the drive switch of the cleaning electric blower 60 is closed "(for example, see Patent Document 1).

  Further, for example, “a vacuum cleaner main body 1 including a dust collecting unit 4 and an electric blower 2 and a suction nozzle 9 connected to the vacuum cleaner main body 1 are provided, and the vacuum cleaner main body 1 detects floating dust. A dust detection means 15, a second intake passage 12 having a shutter 14 that opens and closes by an output signal of the dust detection means 15, and a dust collection filter 13 are provided, thereby floating during cleaning. When there is dust, this is detected by the dust detection means 15, the shutter portion 14 is opened, and the floating dust is automatically sucked from the second intake passage 12 and can be removed by the dust collecting filter 14. For example, the patent document 2) has been proposed.

Japanese Patent Laid-Open No. 10-151097 (paragraph numbers 0052, 0057, 0058, 0062, FIG. 1) JP 2007-68676 A (Summary, FIG. 1)

  However, for example, the vacuum cleaner described in Patent Document 1 needs to switch between a function of cleaning the floor surface and a function of sucking floating dust according to the judgment of the user. That is, there is a problem that it is impossible to simultaneously clean the floor and suck floating dust.

  Further, for example, in the electric vacuum cleaner described in Patent Document 2, a dust collection bag for collecting dust adhering to the floor and a dust collection filter for collecting floating dust are separate parts. For this reason, since it is necessary to maintain a dust collection bag and a dust collection filter separately, there existed a problem that the usability of a vacuum cleaner worsened. Moreover, since separate dust collection bags and dust collection filters are required, there is a problem that costs increase. Moreover, since each installation space of a dust collection bag and a dust collection filter is needed, there existed a problem that a vacuum cleaner will become large. Further, since it is necessary to provide dust detection means for detecting floating dust, there is a problem that the cost is further increased.

  The present invention has been made to solve the above-described problems, and can perform floor cleaning and suction of floating dust at the same time, and is easy to use and obtains a low-cost and compact vacuum cleaner. For the purpose.

  The vacuum cleaner according to the present invention is provided with a first air inlet to which a suction tool for sucking dust on the floor surface is connected, and provided on the downstream side of the air flow from the first air inlet. A main body having a dust collecting portion that communicates with the air inlet and an electric blower that communicates with the dust collecting portion and generates suction air. The main body includes the dust collecting portion or the air of the dust collecting portion. A second air inlet communicating with the upstream side of the flow is formed, and the air sucked from the first air inlet and the air sucked from the second air inlet pass through the dust collecting portion, The second intake port includes an opening / closing means for opening / closing the second intake port, and an urging unit for urging the opening / closing unit toward the outside from the inside of the main body and opening the second intake port. It is provided.

  In the present invention, a second intake port is provided in addition to the first intake port to which a suction tool for sucking dust on the floor surface is connected. For this reason, floating dust can be sucked from the second air inlet simultaneously with the cleaning of the floor surface. That is, cleaning of the floor surface and suction of floating dust can be performed simultaneously. In the present invention, not only the state in which the floor surface is actually cleaned (the state in which the electric blower is driven and the suction tool is in contact with the floor surface), but the state during actual floor surface cleaning ( The state where the electric blower is driven and the suction tool is not in contact with the floor surface) is also included in the state of cleaning the floor surface.

  Further, the air sucked from the first air inlet and the air sucked from the second air inlet pass through the same dust collecting part. For this reason, since it is not necessary to maintain separately the dust collection bag which collects the dust adhering to a floor surface, and the dust collection filter which collects floating dust, the usability of a vacuum cleaner improves. Further, since the vacuum cleaner only requires a space for installing one dust collecting part, the vacuum cleaner can be manufactured at low cost and in a compact manner.

  Further, in the present invention, the second intake port is provided with an opening / closing means for opening / closing the second intake port, and an opening / closing means for urging the opening from the inside of the main body to the outside to open the second intake port. Force means. That is, the opening / closing means balances the load applied to the opening / closing means by the internal pressure of the dust collecting part (load in the direction of closing the opening / closing means) and the biasing force of the biasing means (load in the direction of opening the opening / closing means). It is configured to open accordingly. For this reason, when the floor surface is actually being cleaned with the suction tool, the second air inlet is closed and the floor surface cleaning ability (suction force) is maximized, and the dust adhering to the floor surface can be efficiently sucked. . Further, when the suction tool is moved away from the floor surface, the suction of floating dust is automatically started by opening the second air inlet. Therefore, floor cleaning and floating dust suction can be efficiently switched without the user performing a switching operation. That is, it is possible to provide a vacuum cleaner that is easy to use and excellent in energy saving. Further, since it is not necessary to provide dust detection means (dust sensor, infrared sensor, etc.) for switching between floor cleaning and floating dust suction, a vacuum cleaner can be manufactured at low cost.

Embodiment.
FIG. 1 is a perspective view showing the overall configuration of the electric vacuum cleaner according to the embodiment of the present invention. In the following drawings, the side where the first air inlet 8 is formed will be described as the front portion of the cleaner body.
A first air inlet 8 for sucking dust and the like on the floor surface is provided at the front of the cleaner body 100. Here, the first intake port 8 corresponds to the first intake port of the present invention. One end of a bellows-like hose 99 is detachably connected to the first air inlet 8, and a hand handle 97 having an operation portion 98 is provided at the other end of the hose 99. The user operates the power input to the cleaner body 100 (more specifically, the electric blower) by the operation unit 98. One end of a telescopic pipe 96 is detachably connected to the hand handle 97, and a suction tool 95 is detachably connected to the other end of the pipe 96. The user holds the hand handle 97 and operates the suction tool 95 to cause the cleaner body 100 to suck dust on the floor.

  FIG. 2 is a perspective view showing a vacuum cleaner body of the electric vacuum cleaner according to the embodiment of the present invention. 3 is a schematic cross-sectional view taken along the line AA in FIG. 4 is a detailed view of a P portion in FIG. 3, (a) is a detailed view of the P portion in a state where the second intake port is opened, and (b) is a detailed view of the P portion in a state where the second intake port is closed. FIG. Hereinafter, the vacuum cleaner body of the vacuum cleaner according to the present embodiment will be described with reference to FIGS. 2 to 4 indicate the air flow, the solid arrow indicates the air flow sucked from the first air inlet 8, and the broken arrow indicates the air flow sucked from the second air inlet 13. Represents.

  As shown in FIGS. 2 and 3, the outer body of the vacuum cleaner main body 100 is formed in a main body outer shell portion 1 including a cylindrical upper case 2 and a bottomed cylindrical lower case 3, and the upper surface is formed in a gentle arc shape. The upper lid 4 is connected to the main body outer shell 1 via a hinge 5 to open and close the upper surface opening of the main body outer shell 1. On the front side of the upper lid 4, a button 6 made of, for example, a latch mechanism is provided for locking the upper lid 4.

  A handle member 7 is provided integrally with the main body outer shell 1 at the front portion of the main body outer shell 1. The handle member 7 is formed with a first intake port 8 to which a hose 99 is connected, and a portal handle 9 extending obliquely upward is provided on both sides. An extension portion 10 is provided integrally with the main body outer shell portion 1 at the rear portion of the main body outer shell portion 1, and an exhaust port 11 is provided at the rear surface thereof. In addition, a plurality of wheels 12 are rotatably provided on the bottom surface of the main body outer shell 1.

  The inside of the main body outer shell 1 is divided into two spaces by a partition wall. These two spaces communicate with each other, and a dust collection portion 21 is detachably accommodated in a dust collection portion accommodation space 20 that is a front side space, and an electric blower 31 is placed in an electric blower 31 that is a rear side space. Is provided. The dust collection unit 21 includes a dust collection chamber 22, a dust collection filter case 23 provided behind the dust collection chamber 22, a dust collection filter 24 provided inside the dust collection filter case 23, and the like. The dust collection chamber 22 has a front surface portion communicating with the first air inlet 8 and a rear surface portion communicating with the dust collection filter case 23. A primary filter 25 is provided at a communication portion between the dust collection chamber 22 and the dust collection filter case 23. The dust collection filter case 23 has an opening on the rear surface side, and communicates with the electric blower chamber 30. A dust collection filter 24 is provided in the opening. The dust collection filter 24 has a finer structure than the primary filter 25 and collects dust that has passed through the primary filter 25.

  As shown in FIGS. 2 and 3, the vacuum cleaner main body 100 according to the present embodiment is formed with a second air inlet 13 communicating with the dust collecting portion 21 on the upper front side of the upper lid 4. That is, the second air inlet 13 is formed on the front side (the side where the first air inlet 8 is formed) of the upper portion of the cleaner body 100, and the front side (the side where the first air inlet 8 is formed). It is open toward.

  As shown in FIG. 4, an opening 27 is formed on the upper surface of the dust collection filter case 23 at a position corresponding to the second air inlet 13. That is, the second air inlet 13 communicates with the dust collection filter case 23 through the opening 27. Here, the 2nd inlet 13 and the opening part 27 are equivalent to the 2nd inlet of this invention. Further, for example, an annular protrusion 28 is formed on the upper surface of the dust collection filter case 23 so as to surround the opening 27, and an annular packing 29 is provided so as to surround the protrusion 28. . In a state in which the upper lid 4 is closed, the protrusion 28 is inserted into the second air inlet 13 and the lower surface portion of the upper lid 4 and the packing 29 are in contact with each other. Thereby, the airtightness between the upper cover 4 and the dust collection filter case 23 is maintained.

  In the present embodiment, the dust collecting portion 21 is detachably accommodated in the dust collecting portion accommodating space 20 in order to facilitate the processing of the collected dust. However, for example, the dust collection filter 24 may be provided in the communication portion between the dust collection portion accommodation space 20 and the electric blower chamber 30, and dust may be collected directly in the dust collection portion accommodation space 20. In this case, the second air inlet 13 formed in the upper lid 4 corresponds to the second air inlet of the present invention.

  An opening / closing means 40 for opening and closing the second air inlet 13 and the opening 27 is provided above the dust collection filter case 23. The opening / closing means 40 includes a lid part 41, a cylinder part 42, a stopper part 43, and the like. The lid portion 41 has, for example, a disk shape, and its outer diameter is slightly smaller than the inner diameter of the protrusion 28. The cylindrical portion 42 has, for example, a cylindrical shape, and the upper end is connected to the lower surface portion of the lid portion 41. The outer diameter of the cylindrical portion 42 is slightly smaller than the outer diameter of the lid portion 41, and a packing 44 is provided on the outer peripheral side of the cylindrical portion 42 on the lower surface portion of the lid portion 41. An opening 45 is formed in the upper part of the cylinder part 42 toward the front part of the cleaner body 100. A stopper portion 43 is provided at the lower end of the cylindrical portion 42.

  A spring 46, which is a compression spring, is provided inside the cylindrical portion 42 of the opening / closing means 40. Here, the spring 46 corresponds to the biasing means of the present invention. The lower portion of the spring 46 is supported by, for example, a support portion 47 protruding from the side surface portion of the dust collection filter case 23, and the spring 46 urges the opening / closing means 40 (lid portion 41) upward. . The biasing means is not limited to the spring 46, and may be an elastic member such as a leaf spring, rubber, or cushion.

  As shown in FIG. 4A, the opening 45 rises to the top of the lid 4 when the opening / closing means 40 is lifted by the biasing force of the spring 46. As a result, an air passage 50 is formed in which the air flowing in from the second air inlet 13 flows into the dust collection filter case 23 through the opening 45 and the opening 27. At this time, the stopper portion 43 provided at the lower end of the cylindrical portion 42 is locked to the upper inner side of the dust collecting filter case 23, and the lifting of the opening / closing means is restricted.

  As shown in FIG. 4B, when a predetermined force is applied in the downward direction, the opening / closing means 40 is lowered and the lid portion 41 is locked to the upper surface portion of the dust collecting filter case 23. At this time, the packing 44 provided on the lower surface portion of the lid portion 41 is in contact with the upper surface portion of the dust collection filter case 23 and closes the second air inlet 13 and the opening 27. In other words, the opening / closing means 40 is configured to close the second air inlet 13 and the opening 27 by being pushed by the atmospheric pressure when the inside of the dust collecting part 21 (dust collecting filter case 23) becomes a predetermined pressure or less. . More specifically, the opening / closing means 40 includes a load (downward load in FIG. 4) applied to the opening / closing means 40 by the internal pressure of the dust collecting portion 21 (dust collection filter case 23) and a biasing force of the spring 46 (in FIG. 4). It is configured to close according to the balance with the upward load. Therefore, the degree of opening of the second intake port 13 and the opening 27 (the amount by which the opening / closing means 40 is lowered) is adjusted by the state of contact with the floor surface of the suction tool 95 (the state of the internal pressure of the dust collecting unit 21).

  As described above, in the present embodiment, in the state where the floor surface is not actually cleaned (the electric blower 31 is driven and the suction tool 95 is not in contact with the floor surface), the second air inlet 13 and Configuration in which the second air inlet 13 and the opening 27 are closed in a state where the opening 27 is opened and the floor surface is actually being cleaned (the electric blower 31 is driven and the suction tool 95 is in contact with the floor surface). It has become. The reason for this configuration will be described below.

FIG. 5 is a characteristic diagram showing the airflow characteristics of the electric vacuum cleaner according to the embodiment of the present invention. This figure shows the relationship between the floor suction air volume (the amount of air sucked from the first air inlet 8) and the outside air suction air volume (the air volume sucked from the second air inlet 13).
From FIG. 5, it can be seen that if the outside air suction air volume increases, the floor suction air volume decreases. That is, it can be understood that the higher the floating dust suction capability (outside air suction air volume) is, the lower the floor surface cleaning capability (floor surface suction air volume) is. This is because air suction from the first air inlet 8 and air suction from the second air inlet 13 are both performed by one electric blower 31. Therefore, if floating dust suction and floor cleaning are performed simultaneously, the floor cleaning capability of the vacuum cleaner according to the present embodiment is lower than that of a normal (without floating dust suction function) vacuum cleaner.

  For this reason, in the present embodiment, the second air inlet 13 and the opening 27 are not actually cleaned (when the electric blower 31 is driven and the suction tool 95 is not in contact with the floor). Is opened, and the second air inlet 13 and the opening 27 are closed in a state where the floor surface is actually being cleaned (the electric blower 31 is driven and the suction tool 95 is in contact with the floor surface).

  When cleaning the floor surface (when the electric blower 31 is driven and the suction tool 95 is in contact with the floor surface), the floor surface suction air volume (from the first intake port 8) It is necessary to maximize the amount of air sucked. In the present embodiment, the biasing force of the spring 46 is adjusted so that the opening / closing means 40 closes the second air inlet 13 and the opening 27 in a state where the suction tool 95 is in contact with the floor surface. For this reason, the amount of outside air suction air (the amount of air sucked from the second air inlet 13) becomes zero. Accordingly, when the floor surface is actually cleaned (the electric blower 31 is driven and the suction tool 95 is in contact with the floor surface), the floor suction air volume (the amount of air sucked from the first air inlet 8) is Can be maximized.

  During floor cleaning (when the electric blower 31 is driven and the suction tool 95 is not in contact with the floor surface), floating dust is likely to be generated due to the movement of the cleaner body 1 and the user. At this time, since the pressure in the dust collection unit 20 is close to atmospheric pressure (high), the second air inlet 13 and the opening 27 are in an open state. That is, the amount of outside air suction air (the amount of air sucked from the second air inlet 13) is in a maximum state. Therefore, floating dust can be efficiently sucked.

(Description of operation)
Next, operation | movement of the vacuum cleaner concerning embodiment of this invention is demonstrated.
A power cord (not shown) wound around the cord reel of the vacuum cleaner main body 100 is pulled out and connected to a commercial power source, and a power switch (not shown) provided in the operation unit 98 is turned on. Thereby, the electric blower 31 is driven and suction air is generated. Then, the air sucked from the suction tool 95 flows into the dust collector 21 through the pipe 96, the hose 99 and the first air inlet 8. Dust adhering to the floor surface is sucked into the dust collecting portion 21 by this air flow.

As shown in FIG. 3, the sucked dust flows into the dust collection chamber 22 of the dust collection unit 21. Large dust that cannot pass through the primary filter 25 is collected in the dust collection chamber 22. Fine dust that has passed through the primary filter 25 flows into the dust collection filter case 23 of the dust collection unit 21. The fine dust is collected in the dust collection filter case 23 by the dust collection filter 24.
The clean air that has passed through the dust collection filter 24 passes through the electric blower chamber 30 and is discharged from the exhaust port 11 to the outside.

  When the floor surface is actually being cleaned (when the electric blower 31 is driven and the suction tool 95 is in contact with the floor surface), the second air inlet 13 and the opening 27 are closed. ing. For this reason, as described above, the outside air suction air volume (the amount of air sucked from the second air inlet 13) becomes zero, and the floor surface air suction air volume (the air amount sucked from the first air inlet 8) is maximized. . Therefore, dust adhering to the floor surface can be efficiently sucked.

On the other hand, when the floor surface is not actually cleaned (when the electric blower 31 is driven and the suction tool 95 is not in contact with the floor surface), the second air inlet 13 and the opening 27 are opened. It has become. For this reason, air is sucked from the second air inlet 13 and the opening 27, and the sucked air flows into the dust collecting filter case 23. By this air flow, dust (floating dust) scattered in the air by cleaning the floor surface is sucked into the dust collecting filter case 23. The dust flowing into the dust collection filter case 23 is collected in the dust collection filter case 23 by the dust collection filter 24.
The clean air that has passed through the dust collection filter 24 passes through the electric blower chamber 30 and is discharged from the exhaust port 11 to the outside.

  Depending on the usage state of the vacuum cleaner, etc., it may be possible to open the second air inlet 13 and the opening 27 when the floor surface is actually being cleaned. Further, from the viewpoint of noise or the like, there may be a case where the second air inlet 13 and the opening 27 are desired to be closed even when the floor surface is not cleaned. In consideration of such a case, for example, the opening / closing means 40 may be provided with a lock mechanism so that the user 101 can arbitrarily adjust the opening / closing and opening of the second air inlet 13 and the opening 27.

Next, the optimal positions of the second air inlet 13 and the opening 27 formed in the electric vacuum cleaner according to the present embodiment will be described.
FIG. 6 is a schematic view showing a usage state of the vacuum cleaner according to the embodiment of the present invention. As shown in FIG. 6, the user 101 holds the hand handle 97 and operates the suction tool 95 to clean the floor surface. Further, the hand handle 97 and the first air inlet 8 of the cleaner body 100 are connected by a hose 99. For this reason, when floor cleaning is performed, the main body 100 of the cleaner 100 is directed toward the hand handle 97 (user 101) on the side where the first air inlet 8 is formed.

  Therefore, the second air inlet 13 and the opening 27 are preferably formed on the side where the first air inlet 8 is formed. Moreover, it is preferable that the 2nd inlet 13 and the opening part 27 are opened toward the side in which the 1st inlet 8 is formed. Thereby, the dust (floating dust) that rises by the movement of the cleaner body 100, the sliding (cleaning operation) of the suction tool 95 on the floor surface, the user's walking operation, and the like can be effectively sucked. Therefore, the space to be cleaned can be maintained in a comfortable environment.

  The second air inlet 13 and the opening 27 are not limited to the above positions, and the present invention can be implemented even if they are provided at other positions. For example, the second air inlet 13 and the opening 27 may be provided so as to communicate with the air flow upstream side of the dust collection filter case 23. At this time, when the second intake port 13 is provided so as to communicate with the air flow upstream side (for example, the first intake port) from the dust collection unit 21 (dust collection chamber 22), the opening 27 becomes unnecessary, and the second The intake port 13 is the second intake port of the present invention. Further, for example, a louver or the like may be provided in the second air inlet 13 so that the suction angle of the air inlet can be adjusted.

  In the vacuum cleaner configured as described above, in addition to the first intake port 8 to which the suction tool 95 for sucking dust adhering to the floor surface is connected, the second intake port for sucking floating dust. 13 and an opening 27 are provided. For this reason, floating dust can also be sucked from the second air inlet 13 and the opening 27 simultaneously with the cleaning of the floor surface. Further, both dust and floating dust adhering to the floor surface can be collected in the same dust collection filter case 23. For this reason, it is not necessary to newly provide a dust collection filter case for collecting floating dust. Therefore, it is not necessary to separately maintain the dust collection filter case that collects floating dust, and thus the usability of the vacuum cleaner is improved. Moreover, since the vacuum cleaner requires only a space for installing one dust collecting filter case, the vacuum cleaner can be manufactured at low cost and in a compact manner.

  In addition, an opening / closing means 40 for opening / closing the second air inlet 13 and the opening 27 and a spring 46 for biasing the opening / closing means 40 upward to open the second air inlet 13 and the opening 27 are provided. Therefore, the opening / closing means 40 includes a load (downward load in FIG. 4) applied to the opening / closing means 40 by the internal pressure of the dust collecting portion 21 (dust collection filter case 23) and an urging force of the spring 46 (upward load in FIG. 4). ) To close according to the balance. For this reason, when the floor surface is actually cleaned with the suction tool 95, the second air inlet 13 and the opening 27 are closed to maximize the floor surface cleaning ability (suction force) and efficiently adhere to the floor surface. Dust can be sucked. Further, when the suction tool 95 is separated from the floor surface, the suction of floating dust is automatically started by opening the second air inlet 13 and the opening 27. Therefore, floor cleaning and floating dust suction can be efficiently switched without the user 101 performing a switching operation. That is, it is possible to provide a vacuum cleaner that is easy to use and excellent in energy saving. Further, since it is not necessary to provide dust detection means (dust sensor, infrared sensor, etc.) for switching between floor cleaning and floating dust suction, a vacuum cleaner can be manufactured at low cost.

  The second air inlet 13 is formed on the side where the first air inlet 8 is formed. The second air inlet 13 opens toward the side where the first air inlet 8 is formed. For this reason, it is effective before the dust (floating dust) flying by the movement of the cleaner body 100, the sliding of the suction tool 95 on the floor (cleaning operation), the user's walking operation, etc. is diffused and slid into the air. Can be aspirated.

  In addition, by adding a configuration that can adjust the opening degree of the second air inlet 13 and the opening 27, the user 101 can determine whether or not to suck the floating dust regardless of whether or not the floor surface is being cleaned. Can be selected. Further, when sucking the floating dust, the amount of air sucked from the second air inlet 13 and the opening 27 can be arbitrarily set.

  If the vacuum cleaner is used without maintenance of the dust collection filter 24 for a long time, the dust collection filter 24 may be clogged. When the dust collection filter 24 is clogged, the pressure loss in the dust collection filter 24 increases, and the suction force from the first intake port 8 and the second intake port 13 decreases. Therefore, it is preferable for the user to periodically maintain the dust collection filter case 23. Therefore, the dust collection filter 24 (dust collection part 21) is accommodated in the dust collection part accommodation space 20 so that attachment or detachment is possible.

However, it is easier for the user 101 to use the dust collection filter 24 with fewer maintenance times. For this reason, for example, a dust removing means for removing dust attached to the dust collection filter 24 may be provided in the dust collection filter case 23.
FIG. 7 is a perspective view showing an example of the dust collection filter case 23 according to the present embodiment. This figure is a perspective view of the dust collection filter case 23 as viewed from the rear side (the electric blower chamber 30 side). Ribs 61 arranged in parallel with a predetermined interval are provided on the rear surface portion of the dust collection filter case 23 or the rear surface portion of the dust collection filter 24. A plurality of protrusions 62 are formed at predetermined positions of the ribs 61.

  A ring-shaped gear 63 having teeth formed on the outer peripheral portion is provided behind the rib 61. A boss 64 is provided at substantially the center of the gear 63, and the boss 64 and the gear 63 are connected by a plurality of arms 65 (three in the present embodiment). One of the arms 65 is provided with a dust remover 66. Further, the gear 63 is rotatable, for example, by inserting a shaft formed on the rear surface portion of the dust collecting filter case 23 into a through hole formed in the boss 64.

  An intermediate gear 67 that engages with the gear 63 is provided on the outer peripheral side of the gear 63. An output gear 68 that engages with the intermediate gear 67 is provided on the outer peripheral side of the intermediate gear 67, and the output gear 68 is connected to the rotating shaft of the dust removal drive motor 69.

  When the dust removal driving motor 69 is driven, the gear 63 is rotated via the output gear 68 and the intermediate gear 67. By the rotation of the gear 63, the dust remover 66 collides with the protrusion 62. The collision member with the projection 62 of the dust remover 66 is biased by biasing means such as a spring, for example, and is configured to avoid contact with the projection 62 when a load greater than a predetermined load is applied. As a result, the dust remover 66 repeatedly collides with and avoids the protrusion 62 as the gear 63 rotates, and gives vibration or impact to the dust collection filter 24. The dust attached to the dust collecting filter 24 is removed by this vibration or impact.

  As described above, by providing the dust collecting filter case 23 with the dust removing means for removing the dust adhering to the dust collecting filter 24, the number of maintenance times of the dust collecting filter 24 is reduced, and a convenient vacuum cleaner can be obtained. it can. Moreover, it is possible to obtain a dust collection filter 24 that is hygienic and can maintain performance for a long period of time.

It is a perspective view showing the whole vacuum cleaner composition concerning an embodiment of the invention. It is a perspective view which shows the cleaner body of the vacuum cleaner which concerns on embodiment of this invention. It is an AA cross-sectional schematic diagram of FIG. FIG. 4 is a detailed view of a P portion in FIG. 3, (a) is a detailed view of the P portion in a state where the second intake port is opened, and (b) is a detailed view of the P portion in a state where the second intake port is closed. It is a characteristic view which shows the air volume characteristic of the vacuum cleaner which concerns on embodiment of this invention. It is the schematic which shows the use condition of the vacuum cleaner which concerns on embodiment of this invention. It is a perspective view which shows an example of the dust collection filter case 23 which concerns on embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Main body outer part, 2 Upper case, 3 Lower case, 4 Upper cover, 5 Hinge, 6 Button, 7 Handle member, 8 First intake port, 9 Handle, 10 Extension part, 11 Exhaust port, 12 Wheel, 13 Second Inlet, 20 Dust collection space, 21 Dust collection, 22 Dust collection chamber, 23 Dust collection filter case, 24 Dust collection filter, 25 Primary filter, 27 Opening, 28 Projection, 29 Packing, 30 Electric blower chamber , 31 Electric blower, 40 Opening / closing means, 41 Lid portion, 42 Tube portion, 43 Stopper portion, 44 Packing, 45 Opening portion, 46 Spring, 47 Support portion, 50 Air passage, 61 Rib, 62 Protrusion, 63 Gear, 64 Boss , 65 arm, 66 dust remover, 67 intermediate gear, 68 output gear, 69 dust drive motor, 95 suction tool, 96 pipe, 97 hand handle, 98 operation Part, 99 hose, 100 vacuum cleaner body, 101 user.

Claims (5)

A first air inlet to which a suction tool for sucking dust on the floor is connected;
A dust collecting portion provided on the downstream side of the air flow from the first air inlet, and in communication with the first air inlet;
An electric blower that communicates with the dust collector and generates suction air;
Comprising a body having
The main body is formed with a second air intake port communicating with the dust collecting portion or the air flow upstream side of the dust collecting portion,
The air sucked from the first air inlet and the air sucked from the second air inlet pass through the dust collector,
In the second air inlet,
Opening and closing means for opening and closing the second air inlet;
An electric vacuum cleaner comprising: an urging means for urging the opening / closing means toward the outside from the inside of the main body and opening the second intake port. The second air inlet is
The electric vacuum cleaner according to claim 1, wherein the electric vacuum cleaner is formed on a side of the main body where the first air inlet is formed. The second air inlet is
The vacuum cleaner according to claim 1 or 2, wherein the vacuum cleaner opens toward the side where the first air inlet is formed. The opening / closing means includes
The electricity according to any one of claims 1 to 3, wherein the electricity can be held in a state in which the second air inlet is opened and in a state in which the second air inlet is closed. Vacuum cleaner.   The vacuum cleaner according to any one of claims 1 to 4, further comprising dust removing means for removing dust adhering to the dust collecting filter of the dust collecting unit.

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