JP5106289B2 - Electric vacuum cleaner - Google Patents

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.

  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. second inlet communicating with the flow upstream side is formed, the air sucked from the first inlet, and air sucked from said second inlet port is for passing through the dust collecting part The second intake port includes an opening / closing means for opening and closing the second intake port, and an urging means for opening and closing the second intake port from the inside of the main body to the outside, thereby closing the second intake port. A biasing means, wherein the biasing means is configured such that the suction tool is a floor in a state where the electric blower is driven. Open the second intake port in a state in contact with, in a state in which the suction device is not in contact with the floor surface so as to close said second intake port, which biases the opening and closing means It is.

In the present invention, the second intake port is provided in addition to the first intake port to which the suction tool for sucking the dust on the floor 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, 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.

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 an enlarged view of a portion P in FIG. 3, (a) is an enlarged view of the portion P in a state where the second air inlet is closed, and (b) is an enlarged view of the portion P in a state where the second air inlet is opened. 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 FIGS. 3 and 4, the dust collection filter case 23 has an opening 27 at a position corresponding to the second air inlet 13 on the upper surface. 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.

  As shown in FIG. 4, a packing 28 is provided around the opening 27 on the outer side of the upper surface of the dust collection filter case 23. Thereby, in a state where the upper lid 4 is closed, the airtightness between the upper lid 4 and the dust collection filter case 23 is maintained, and the air sucked from the second intake port 13 is passed through the opening 27 to collect the dust collection filter case. 23. That is, the air path 50 through which the air flowing from the second air inlet 13 flows into the dust collection filter case 23 is formed.

  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 has a cylindrical shape corresponding to the inside of the second air inlet 13 and the opening 27, and has an upper portion closed. In addition, a plurality of tongue pieces serving as stopper portions 40a are formed in the opening at the bottom of the opening / closing means 40. Below the opening / closing means 40, a spring 41, which is a compression spring, is provided. Here, the spring 41 corresponds to the biasing means of the present invention. The lower portion of the spring 41 is supported by, for example, a support portion 42 protruding from the side surface portion of the dust collection filter case 23, and the spring 41 urges the opening / closing means 40 upward. That is, the opening / closing means 40 is configured to close the second air inlet 13 and the opening 27 by the biasing force of the spring 41. At this time, the stopper portion 40 a is locked to the upper inside of the dust collection filter case 23. . As shown in FIG. 4A, when the opening / closing means 40 closes the second air inlet 13 and the opening 27, the packing 28 is in contact with the side surface of the opening / closing means 40, and the second air inlet 13 The airtightness between the opening 27 and the opening / closing means 40 is maintained. The biasing means is not limited to the spring 41 but may be an elastic member such as a leaf spring, rubber, or cushion. The shape of the stopper portion 40a is not limited to the tongue piece, and may be any shape that can be locked inside the upper part of the dust collection filter case 23. For example, an annular protruding edge may be provided on the outer peripheral portion of the opening / closing means 40, and a communication hole for air circulation may be formed on the protruding edge.

  As shown in FIG. 4B, the opening / closing means 40 is configured to open the second air inlet 13 and the opening 27 when a predetermined force is applied downward. That is, the opening / closing means 40 is configured to open 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 lower. . 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 41 (in FIG. 4). It is configured to open according to the balance with the upward load. Therefore, the opening degree of the second air inlet 13 and the opening 27 (the amount of lowering of the opening / closing means 40) is adjusted by the contact state of the suction tool 95 with the floor surface.

  In the present embodiment, the second air inlet 13 and the opening 27 are closed in a state where the floor surface is not cleaned (the electric blower 31 is driven and the suction tool 95 is not in contact with the floor surface). Thus, the biasing force of the spring 41 is adjusted. Further, in the state where the floor surface is being cleaned (the state where 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 in an open state. The biasing force of the spring 41 is adjusted.

  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.

(Description of operation)
Next, operation | movement of the vacuum cleaner concerning this Embodiment 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.

As described above, when the floor surface is 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 opened. It is in a state. 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. As a result, the dust (floating dust) that rises due to 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 sucked before it diffuses into the air. Can do. Therefore, the space to be cleaned can be maintained in a comfortable environment.
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.

  Note that intake noise is generated when air is sucked from the second intake port 13 and the opening 27. However, this noise is smaller than the noise generated from the electric blower 31 and the exhaust noise when the suction tool 95 is in contact with the floor surface. For this reason, it is possible to simultaneously perform the cleaning of the floor surface and the suction of the floating dust without worrying about the intake noise generated when the air is sucked from the second air inlet 13 and the opening 27.

On the other hand, when the floor surface is not 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 closed. ing. This is because floating dust is not generated when the floor surface is not cleaned, and it is not necessary to suck the floating dust.
In a state where the suction tool 95 is not in contact with the floor surface, noise and exhaust noise generated from the electric blower 31 are not so great. For this reason, if the floating dust is sucked when the floor surface is not cleaned, the intake noise generated when the air is sucked from the second air inlet 13 and the opening 27 is often a concern. From the viewpoint of energy saving and usability of the vacuum cleaner, it is better not to suck the floating dust when the floor is not cleaned.

  Note that, depending on the usage state of the vacuum cleaner, the second intake port 13 and the opening 27 may be closed when the floor surface is being cleaned in order to increase the suction force from the first intake port 8. . Further, even when the floor surface is not being cleaned, such as when moving to the next cleaning place or the next cleaning place (for example, the next room), it is desired to open the second air inlet 13 and the opening 27 to suck the floating dust. Cases are also conceivable. 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. 5 is a schematic view showing a use state of the electric vacuum cleaner according to the present embodiment. As shown in FIG. 5, 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 port 13 and the opening part 27 are opened toward the side in which the 1st inlet port 8 is formed. This is effective before the dust (floating dust) that rises due to 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. 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 cylinder portion may be provided in the second air inlet 13 so as to be freely inserted and removed, and a function of adjusting the height of the air inlet may be provided. 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 41 for biasing the opening / closing means 40 upward to close 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 41 (upward load in FIG. 4). ) And open according to the balance. For this reason, when floating dust is generated (when the floor is cleaned), the floating dust is sucked, and when floating dust is not generated (when the floor is not cleaned), it is floating. A vacuum cleaner that does not suck dust can be obtained.

  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. 6 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 its performance for a long period.

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. It is the P section enlarged view of Drawing 3, (a) is the P section enlarged view of the state where the 2nd inlet was closed, and (b) is the P section enlarged view of the state where the 2nd inlet was opened. It is the schematic which shows the use condition of the vacuum cleaner which concerns on this Embodiment. It is a perspective view which shows an example of the dust collection filter case 23 which concerns on this Embodiment.

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 1st inlet port, 9 Handle, 10 Extension part, 11 Exhaust port, 12 Wheel, 13 2nd Air intake port, 20 Dust collection space, 21 Dust collection unit, 22 Dust collection chamber, 23 Dust collection filter case, 24 Dust collection filter, 25 Primary filter, 27 Opening, 28 Packing, 30 Electric blower chamber, 31 Electric blower 40 opening / closing means, 40a stopper portion, 41 spring, 42 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 removal drive Motor, 95 suction tool, 96 pipe, 97 hand handle, 98 operation section, 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 collecting part ,
In the second air inlet,
Opening and closing means for opening and closing the second air inlet;
A biasing means for biasing the opening / closing means toward the outside from the inside of the main body, and closing the second air inlet;
With
The biasing means is
In the state where the electric blower is driven,
When the suction tool is in contact with the floor surface, the second intake port is opened, and when the suction tool is not in contact with the floor surface, the opening / closing is closed. A vacuum cleaner characterized by energizing means . 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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