JP3723104B2 - Vacuum cleaner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner that collects dust in a dust collection chamber using an air flow generated by an electric blower and performs cleaning.
[0002]
[Prior art]
Conventionally, as a vacuum cleaner called a stick type, one having a configuration described in Japanese Patent Laid-Open No. 2000-217757 is known. That is, a brush chamber that is openable and closable by a suction port cover is formed in a front side portion defined by a partition wall standing on the suction port base to accommodate the rotating brush. A cup-shaped dust collection box with a dust collection unit and electric blower mounted side by side on the rear side and a suction port opened on the side is detachable in a laid-down configuration with the dust collection unit receiving part as a support. The suction port is in close communication with the rear end of the suction passage. The dust collection filter is configured to be housed in an eccentric state in the dust collection box.
[0003]
Also, there are JP-A-9-192056, JP-A-9-195959, and JP-A-9-192062. They have a floor running head with wheels and an elongate handle pivotally connected to this head, the head has two motors, one of which rotates on the impeller and the other on the other. Connected to the brush. The head has a rechargeable battery to supply electricity to the motor and a three-position electrical switch, and all of the vacuum cleaner's working elements, including the air filter and dust collection cup, are on the floor running head. A vacuum cleaner has been proposed in which the handle has no working elements.
[0004]
[Problems to be solved by the invention]
Since such a small vacuum cleaner must be configured in a small size, downsizing of the dust collecting chamber is a problem. Along with this, the cross-sectional area of the dust collecting filter is also reduced. Therefore, it is desirable that the dust collection chamber is small and that dust is efficiently accumulated therein to prevent the dust collecting filter from being clogged. Moreover, it is desired that the ventilation path has low ventilation resistance and low noise during use.
[0005]
  An object of the present invention is to provide a vacuum cleaner body including an electric blower and a dust collection chamber, and a suction body including an electric blower and a dust collection chamber in order to realize a small vacuum cleaner, Connect to the main body of the vacuum cleaner via an extension tube, or disconnect from the main body of the vacuum cleaneruseIn a vacuum cleaner that can be configured, a compact vacuum cleaner that is easy to use is provided by reducing the generation of noise due to the air flow of the suction body in a use state in which the vacuum cleaner is connected to the vacuum cleaner body via an extension pipe. There is.
[0006]
[Means for Solving the Problems]
  The present invention relates to the cleaning device in which a vacuum cleaner main body having an electric blower on the main body side and a dust collecting chamber on the main body side and an opening on the suction body provided facing the surface to be cleaned are connected via an extension pipe. A suction body communicating with the dust collection chamber on the main body side of the machine body, and the suction body includes an electric blower on the suction body side;The electric blower communicates with the filter and the air passage.A dust collection chamber on the mouthpiece side is provided, and the mouthpiece can be used separated from the cleaner body.Dust in the dust collection chamber by allowing air sucked when the suction body is connected to the dust collection chamber on the main body side of the cleaner body to pass through the dust collection chamber on the suction body side. To the dust collection chamber on the main unit sideIn a vacuum cleaner,
  The opening provided in the brush chamber side wall and the wall facing the wall of the dust collection chamber on the suction body side provided in the suction body and the wall on the brush chamber side and the brush chamber side The opening provided in the wall facing the wall of the suction port is such that both projection surfaces at least partially overlap when projected onto a plane including a center line parallel to the longitudinal direction of the suction body of the dust collection chamber on the suction body side. It is characterized by the arranged opening.
[0007]
  And the central axis with respect to the air flow direction of the opening provided on the wall facing the brush chamber side wall is more than the central axis with respect to the air flow direction of the opening provided on the wall on the brush chamber side. It is the electric blower side of the mouthpiece provided in the mouthpiece.
[0008]
  The opening provided in the wall facing the brush chamber side wall and the opening provided in the brush chamber side wall are provided with openable and closable valves.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a top view of the whole structure according to the embodiment of the present invention in FIG. 2 with the upper case and the suction cover of the suction body 106 removed. FIG. 2 shows an external view of a vacuum cleaner according to an embodiment of the present invention. FIG. 2 is roughly composed of a suction body 106, an extension pipe 105, and a handle grip 103 for operating the suction body 106. The handle grip 103 is provided with a hand switch 104 for switching the operation of the cleaner, and the extension tube 105 is provided with a rechargeable battery 107. In the present embodiment, the handle grip 103 is configured separately from the extension tube 105 and can be freely disconnected from or connected to the extension tube 105. Reference numeral 108 denotes an optical remote control light emitting unit, and reference numeral 207 denotes a dust collection chamber that can be detached from the suction body 106.
[0011]
In FIG. 1, 201 is a rotary cleaning body, 202 is an electric motor for driving the rotary cleaning body 201, 203 is a circuit board, 204 is a drive belt, 220 is an electric blower, and a blower 206 and an electric motor 205 for driving the blower 206 are shown. It is composed of Reference numeral 207 denotes a dust collection chamber that can be detached from the suction body 106, and 208 denotes a filter. Here, the air containing dust flows into the dust collection chamber 207 from the brush chamber 222 and is separated into dust and air in the dust collection chamber 207.
[0012]
In this embodiment, as shown in FIG. 1, an electric blower 220 is disposed in the suction body 106. The electric blower 220 is arranged such that the rotation shaft 223 of the electric blower 220 is parallel to the longitudinal direction of the opening 221 facing the surface to be cleaned (longitudinal direction of the suction body 106), and the dust collecting chamber 207 An air passage 224 communicating with the electric blower 220 is provided. In FIG. 1, the position of the central axis 224a on the inlet surface of the air passage 224 is positioned closer to the brush chamber 222 than the central axis 207a of the dust collection chamber parallel to the longitudinal direction of the opening 221 (longitudinal direction of the suction body 106). It is characterized by being arranged to be located in
[0013]
Since the present invention has the above-described configuration, the air suddenly turns in the order from the brush chamber 222 to the dust collection chamber 207, the filter 208, and the air passage 224 (arrow A in the figure). On the other hand, since the sucked dust has a density higher than that of air, it cannot be turned rapidly like air. Therefore, due to the inertial force when it flows into the dust collection chamber 207, it flows to the anti-brush chamber side of the dust collection chamber 207 (arrow B in the figure), and dust accumulates in order from the anti-brush chamber side of the dust collection chamber 207. It will be done. Therefore, when dust is accumulated in the dust collection chamber 207, the air passage 224 communicating with the electric blower 220 can prevent an increase in ventilation resistance due to clogging of dust. Further, clogging of the filter 208 due to dust can be prevented. Since the position of the center 224a on the inlet surface of the air passage 224 is located closer to the brush chamber 222 than the center axis 207a of the dust collection chamber, the dust accumulation volume in the accumulation chamber can be increased.
[0014]
Therefore, there is a feature that dust can be effectively accumulated and the dust collection chamber 207 can be downsized. In addition, since the increase in ventilation resistance can be prevented, even when dust is accumulated in the dust collection chamber 207, the flow of air through the electric blower 220 is ensured and high dust collection can be achieved.
[0015]
Here, by disposing the inlet side 224b of the air passage 224 communicating with the electric blower 220 from the dust collection chamber 207 on the brush chamber 222 side as compared with the outlet side 224c, the dust passage without affecting the air passage inlet. Since the volume of the dust chamber that can be accumulated can be secured, the efficiency of the dust chamber can be improved in the same manner.
[0016]
Further, the central axis (207c) of the opening 253a of the dust collection chamber 207 is on the side opposite to the counter electric blower (air passage) as compared to the entrance central axis (207b) of the dust collection chamber 207 perpendicular to the rotating shaft 223 of the electric blower 220. When the dust is accumulated in the dust collecting chamber 207, the air passage 224 communicating with the electric blower 220 can prevent an increase in ventilation resistance due to clogging of dust. Or there is an effect which can be reduced at least.
[0017]
  In addition, the aboveDust collection chamber 207Is configured to be removable from the suction body 106, and the filter 208 can be removed from the dust collection chamber 207 so that dust can be easily discarded from the dust collection chamber 207.
[0018]
  Next, a second embodiment of the present inventionInThis will be described with reference to FIG. FIG. 3 corresponds to another embodiment of FIG. 1 and is a top view showing a state in which the upper case and the suction cover of the suction body 106 are removed. As shown in FIG. 3, the electric blower 220 has a rotating shaft 223 of the electric blower 220 parallel to the longitudinal direction of the opening 221 facing the surface to be cleaned (longitudinal direction of the sucker 106). The flow straightening plate 240 is projected into the dust collection chamber 207 so as to continue from the dust collection chamber 207 to the inlet side of the air passage 224 communicating with the electric blower 223.
[0019]
In this case, because of the above configuration, the air rapidly flows in the order from the brush chamber 222 to the dust collection chamber 207, the filter 208, and the air passage 224 (arrow A in the figure), whereas the dust has a higher density than the air. It cannot turn suddenly like air and flows to the anti-brush chamber side of the dust collection chamber 207 by the inertial force when it flows into the dust collection chamber 207 (arrow B in the figure). And dust accumulates in order from the anti-brush chamber side of the dust collection chamber 207. At this time, the accumulated dust is lifted by the secondary flow generated on the side opposite to the brush and the like, and is prevented from flowing into the air passage 224 by the rectifying plate 240.
[0020]
Therefore, when dust accumulates in the dust collection chamber 207, the air passage 224 communicating with the electric blower 220 can reduce an increase in ventilation resistance due to clogging of dust. As a result, dust can be effectively accumulated even in the small dust collection chamber 207, and an increase in ventilation resistance can be prevented or at least reduced, so that even when dust is collected in the dust collection chamber 207 The air volume of the electric blower 220 is ensured and high dust collection can be achieved.
[0021]
As shown in FIG. 3, the filter 208 may be disposed in a state where the inlet side of the air passage 224 protrudes into the dust collection chamber 207. Furthermore, when the opening 253a of the dust collection chamber 207 is arranged on the side opposite to the rotation axis 223 of the electric blower 220 and the central axis of the dust collection chamber 207, dust accumulates in the dust collection chamber 207. The air passage 224 communicating with the electric blower 220 has an effect of preventing or at least reducing an increase in ventilation resistance due to dust clogging.
[0022]
The dust collection chamber 207 is configured to be detachable from the suction body 106, and the filter 208 can be removed from the dust collection chamber 207 so that dust can be easily discarded from the dust collection chamber 207.
[0023]
FIGS. 4A and 4B show modifications of the attachment of the rectifying plate 240 shown in FIG. FIG. 4A shows a case where the current plate 240 is attached with the air passage 224 extended (b1 = b2). The current plate may be created and attached separately, but in this case, it can also be created integrally with the air flow path. 4B is a modification of the case of FIG. 3 and is characterized in that the length of the rectifying plate protruding into the dust collecting chamber at a right angle is set to b1> b2. In this case, the resistance is made as small as possible with respect to the air flow A in FIG. Further, the resistance is increased on the side where dust from the dust collection portion of the anti-suction portion flows into the air passage. Thereby, the resistance of air can be reduced, and the inflow resistance to the air flow path with respect to dust can be increased. Also in FIG. 4A, by setting b1> b2, the same effect as in the case of FIG. 4B can be expected. There is an effect that the accumulated dust can be prevented from flowing into the air passage.
[0024]
Next, a third embodiment of the present invention will be described. FIG. 5 is an external view of a vacuum cleaner according to another embodiment of the present invention. In FIG. 5, 101 is a vacuum cleaner body, 102 is a hose body, 103 is a handle grip, 104 is a hand switch, 105 is an extension tube, 106 is a mouthpiece having an opening facing the surface to be cleaned, and 107 is recharged. A possible battery, 108 is an optical remote control light emitting unit, 109 is a main body side optical remote control light receiving unit, and 110 is an optical remote control light receiving unit on the mouthpiece side. An electric blower 112 that generates a suction force is provided inside the main casing that forms the outline of the main body of the vacuum cleaner, and a dust collection chamber 111 is provided on the suction side of the electric blower 112.
[0025]
As shown in FIG. 5, a vacuum cleaner main body 101 having an electric blower 112 and a dust collection chamber 111, and a suction body 106 having an opening facing the surface to be cleaned and communicating with the dust collection chamber 111. The electric blower 220 and the dust collecting chamber 207 are also provided on the suction body 106 side, and the suction body 106 side can be used by being separated from the cleaner body 101.
[0026]
In this embodiment, the vacuum cleaner provided with the cleaner main body 101 and the suction body 106 is configured as follows. A first electric blower 112 and a dust collection chamber 111 are provided on the cleaner body 101 side. A second electric blower 220 and a dust collection chamber 207 are provided on the suction body 106 side. The suction body 106 side is separated from the cleaner body 101 side so that it can be used independently. In addition, when the suction body 106 side is connected to the cleaner body 101 side, the dust passage 207 on the suction body 101 side and the dust collection chamber 111 on the cleaner body side can transfer dust ( The extension pipe 105 and the hose body 102) are connected to each other, and dust is collected from the dust collection chamber 207 on the suction body 106 side to the dust collection chamber 111 on the cleaner body 101 side by the electric blower 112 provided on the cleaner body 101 side. It is configured so that it can be transported.
[0027]
A dust collection chamber 207 provided in the suction body 106 is shown in FIGS. In FIG. 6A, openings 253a and 253b are provided in a wall 251 on the brush chamber 222 side of the dust collection chamber 207 and a wall 252 facing the wall, respectively.
[0028]
FIG. 8 is a cross-sectional view of the suction body 106 taken along a plane perpendicular to the rotating shaft 223 of the electric blower 220. Here, the projection part 253c which projected the opening part 253a on the plane 300 which is perpendicular | vertical with respect to a floor surface, is parallel to the rotating shaft 223 of the said electric blower 220, and contains the centerline of the said dust collection chamber 207, and opening part 253b Both openings are arranged so that the projection portion 253d that projects the projection overlaps at least partially.
[0029]
When the suction body 106 side is connected to the cleaner main body 101 side in the above configuration, the air is provided from the brush chamber 222 to the opening 253a provided on the wall 251 on the brush chamber 222 side of the dust collection chamber 207, Since the dust collection chamber 207 and the opening 253b provided in the wall 252 facing the wall on the brush chamber 222 side of the dust collection chamber 207 flow in this order, the air flow can be used without suddenly turning. Therefore, there is an effect that the generation of noise can be prevented.
[0030]
Further, when dust passes from the brush chamber 222 to the dust collecting chamber 207, it can be prevented that the dust is caught. Further, it is possible to reduce hard dust from colliding with the wall 252 of the dust collecting chamber 207 and damaging the wall surface. Here, if the cross-sectional area of the opening 253a of the dust collection chamber 207 is substantially constant between 4 and 8 square centimeters, the suction body 106 side is connected to the cleaner body 101 side and used even at high airflow. The wind speed in the extension pipe 105 and the hose 102 can be made similar to the wind speed, and an increase in noise can be suppressed.
[0031]
Further, if the sectional area of the opening 253a of the dust collecting chamber 207 is set to be equal to or smaller than the sectional area of the opening 253b, the suction body 106 side is separated from the cleaner body 101 side and used independently. The dust sucked and collected up to the dust chamber 207 can be transferred to the dust collection chamber 111 provided on the cleaner body 101 side when the suction body 106 side is connected to the cleaner body 101 side.
[0032]
Here, in FIG. 6A, the opening 253a provided on the brush chamber 222 side is provided on the floor surface side compared to the opening 253b opposed to the opening 253a. In the figure, when the distance of C and the distance of D are compared, C is smaller (C <D).
[0033]
6B, contrary to the case of FIG. 6A, an opening 253b facing the opening 253a is provided on the floor surface with respect to the opening 253a provided on the brush chamber 222 side. On the side. In the figure, when the distance C is compared with the distance D, when C is greater than or equal to D (C ≧ D), it may be separated from the floor surface side of the opening 253a of the dust collection chamber 207 provided on the suction body 106 side. it can. Therefore, the dust sucked into the dust collection chamber 207 can be made difficult to spill from the opening 253a. In particular, when the dust collection chamber 207 is full of dust, it is possible to prevent the dust from overflowing to the floor surface.
[0034]
Further, when the suction body 106 side is separated from the cleaner body 101 side and used independently, the height from the floor surface side of the opening 253a of the dust collection chamber 207 can be increased. This also has the effect of substantially increasing the dust collection capacity. That is, since dust can be collected up to the vicinity of the upper surface of the dust collection chamber 207, it is equivalent to apparently increasing the volume of the dust collection chamber. Further, if the view is changed, the dust collection chamber can be downsized.
[0035]
Also in this case, both the openings are arranged on the plane 300 so that the projection unit 253c that projects the opening 253a and the projection unit 253d that projects the opening 253b at least partially overlap each other. And by making such a structure, generation | occurrence | production of noise can be suppressed similarly to the above. Further, when the sucked dust spills from the opening 253b to the extension tube 105 side, the dust is used when the suction body 106 side is connected to the cleaner body 101 side. Since it is conveyed to the dust collection chamber 111 provided on the side, it is not scattered on the floor surface. The effect which makes it difficult to spill on the floor can be expected.
[0036]
Since the present invention is configured as described above, when the suction body 106 side is separated from the cleaner body 101 side and used independently, the electric blower 220 provided on the suction body 106 is driven by a small and rechargeable battery 107. Therefore, it may not be possible to produce a large air volume or static pressure. Therefore, the opening 253a provided on the brush chamber 222 side is arranged at a distance close to the floor surface, so that dust sucked up from the floor surface can be conveyed to the dust collection chamber 207 even when the air volume is low.
[0037]
  On the other hand, when using the suction body 106 side connected to the cleaner body 101 side, the electric blower 112 provided on the cleaner body 101 can be driven using a commercial AC power source. High air volume and high pressure can be achieved. Therefore, when the suction body 106 side is connected to the cleaner body 101 side, the opening 253a isForIf the dust collection chamber 207 on the suction body 101 side and the dust collection chamber 111 on the cleaner body side are provided on the air passage (extension pipe 105, hose body 102) side where dust can be transferred, Dust can be conveyed from the dust collection chamber 207 on the suction body 106 side to the dust collection chamber 111 on the cleaner body 101 side.
[0038]
In addition, a valve body 209a that opens inward of the dust collection chamber 207 is opened in the opening 253a on the brush chamber 222 side of the dust collection chamber 207, and an opening outward of the dust collection chamber 207 is opened in the opening 253b. When the valve body 209b is provided, when dust is not easily spilled from the dust collection chamber 207 and the suction body 106 side is connected to the cleaner body 101 side, the dust collection chamber 207 on the suction body 106 side is used. Dust can be conveyed to the dust collection chamber 111 side on the cleaner body 101 side.
[0039]
Furthermore, when the opening 253a of the dust collection chamber 207 is arranged on the side opposite to the rotation axis 223 of the electric blower 220 and the central axis of the dust collection chamber 207, dust accumulates in the dust collection chamber 207. As the air passage 224 communicates with the electric blower 220, an increase in ventilation resistance due to dust clogging can be prevented.
[0040]
Further, the filter 208 is disposed so as not to protrude toward the center of the dust collection chamber 207 from the line connecting the opening 253a and the opening 253b of the dust collection chamber 207. As a result, when the suction body 106 side is connected to the cleaner body 101 side and used, the dust flowing in from the opening 253a of the dust collecting chamber 207 is not entangled with the filter 208 and the It can be conveyed to the dust collection chamber 111.
[0041]
These valve elements may be made of an elastic material such as rubber or a leaf spring made of plastic. The 207 dust collecting chamber is configured to be detachable from the suction body 106, and the filter 208 can be removed from the dust collecting chamber 207 so that dust can be easily discarded from the dust collecting chamber 207.
[0042]
Further, this dust collecting chamber may be modified as shown in FIG. In this example, the center of the opening 253a is shifted from the center of the opening 253b. And the example of the structure which provided the curvature part like R1-R4 in each of the opening parts 253a and 253b, and prevented generation | occurrence | production of the resistance with respect to the flow of air and a vortex | eddy_current is shown.
[0043]
Next, in the present embodiment, as shown in FIG. 7, an openable / closable exhaust valve 255 is provided in the vicinity of the exhaust port 254 disposed on the downstream side of the electric blower 220 on the suction body 106 side. Since the present invention is configured as described above, when the suction body 106 side is separated from the cleaner body 101 side and used independently, the exhaust E from the electric blower 220 provided on the suction body 106 is exhausted to the outside through the exhaust port 254. Is done.
[0044]
On the other hand, when the suction body 106 side is connected to the cleaner body 101 side and used, the exhaust valve 255 is completely set by the air F sucked by the electric blower 112 provided in the cleaner body 101. Or almost closed.
[0045]
If the exhaust valve 255 is provided so as to be completely closed, the electric blower 112 provided in the cleaner body 101 reduces the air volume of the air F from the suction port of the suction body 106 by the backflow air G from the exhaust port 254. Since the inside of the suction body 106 can be kept at a high vacuum, high dust collection can be achieved. Further, it is possible to prevent the life of the electric motor 205 from being reduced due to the reverse rotation of the electric blower 220 provided in the suction body 106 due to the reverse flow from the exhaust port 254.
[0046]
Further, if the exhaust valve 255 is substantially closed so that only a small amount of air flow G flows backward, the electric motor 205 due to the reverse rotation of the electric blower 220 provided in the suction body 106 due to the reverse flow from the exhaust port 254 described above. Can prevent a decrease in the service life. Furthermore, dust entangled with the filter 208 can be conveyed to the dust collection chamber 111 provided in the cleaner body 101, and the filter 208 can be self-refreshed. That is, the filter 208 can be refreshed by driving and using the electric blower 112 by the AC power source. In addition, since the reduction in the air volume at the suction port of the suction body 106 due to the backflow from the exhaust port 254 can be reduced and the suction body 106 can be kept in a high vacuum, high dust collection can be achieved.
[0047]
  As described above, according to the present invention, the cleaner body having the electric fan on the main body side and the dust collecting chamber on the main body side, and the opening on the mouthpiece body provided facing the surface to be cleaned are extended. A suction body communicating with the dust collecting chamber on the main body side of the vacuum cleaner body connected via a pipe, and the suction body includes an electric blower on the suction body side;The electric blower communicates with the filter and the air passage.A dust collection chamber on the mouthpiece side is provided, and the mouthpiece can be used separated from the cleaner body.Dust in the dust collection chamber by allowing air sucked when the suction body is connected to the dust collection chamber on the main body side of the cleaner body to pass through the dust collection chamber on the suction body side. To the dust collection chamber on the main unit sideIn a vacuum cleaner,
  Opening portions are respectively provided in the brush chamber side wall of the suction side dust collection chamber provided in the suction body and the wall facing the wall, and the opening portion provided in the brush chamber side wall and the brush chamber side The opening provided in the wall facing the wall is arranged so that both projection surfaces at least partially overlap when projected onto a plane including a center line parallel to the suction body longitudinal direction of the dust collection chamber on the suction body side. By using the opening portion, it is possible to reduce the generation of noise due to the air flow of the suction body in the use state connected to the cleaner body via the extension pipe, and to realize a user-friendly small vacuum cleaner. .
[0048]
Moreover, there exists an effect which can refresh the filter by the side of a suction body by using the electric blower by the side of a cleaner body.
[0049]
【The invention's effect】
  According to the present invention, a vacuum cleaner main body having an electric blower on the main body side and a dust collecting chamber on the main body side and an opening on the suction body side provided facing the surface to be cleaned are connected via the extension pipe. A suction body communicating with the dust collecting chamber on the main body side of the vacuum cleaner body is provided, and the suction body includes an electric blower on the suction body side;The electric blower communicates with the filter and the air passage.A dust collection chamber on the mouthpiece side is provided, and the mouthpiece can be used separated from the cleaner body.Dust in the dust collection chamber by allowing air sucked when the suction body is connected to the dust collection chamber on the main body side of the cleaner body to pass through the dust collection chamber on the suction body side. To the dust collection chamber on the main unit sideIn the electric vacuum cleaner, it is possible to reduce the generation of noise due to the air flow of the suction body in the use state connected to the vacuum cleaner main body via an extension pipe, and to realize a small and convenient vacuum cleaner.
[Brief description of the drawings]
FIG. 1 is a top view of a mouthpiece according to an embodiment of the present invention.
FIG. 2 is an external view of a vacuum cleaner according to an embodiment of the present invention.
FIG. 3 is a top view of a mouthpiece according to an embodiment of the present invention.
FIG. 4 is a diagram for explaining a modification of the flow rectifying plate attachment and the structure of the dust collecting chamber according to the present invention.
FIG. 5 is an external view of a vacuum cleaner according to an embodiment of the present invention.
FIG. 6 is a view of a dust collection chamber provided in a suction body according to an embodiment of the present invention.
FIG. 7 is a top view of a mouthpiece according to an embodiment of the present invention.
FIG. 8 is a cross-sectional view of the mouthpiece taken along a plane perpendicular to the rotation axis of the electric blower according to the embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 101 ... Vacuum cleaner main body 102 ... Hose body 103 ... Handle part 104 ... Switch 105 ... Extension pipe 106 ... Suction body 107 ... Battery 202 ... Electric motor 206 ... Blower 111, 207 ... Dust collection chamber 208; Filter 209a, 209b; An electric blower 221; an opening 222; a brush chamber 223; a rotating shaft 224; an air passage 240; a current plate 253a, 253b; an opening 253c, 253d; a projection 254;

Claims (3)

The vacuum cleaner main body having an electric blower on the main body side and a dust collecting chamber on the main body side, and the suction body side opening provided to face the surface to be cleaned are connected via an extension pipe. A suction body that communicates with the dust collection chamber on the main body side, and the suction body is provided with an electric blower on the suction body side, a dust collection chamber on the suction body side that communicates with the electric blower via a filter and an air passage, and the suction mouth The body is separated from the main body of the vacuum cleaner and can be used, and the air sucked when the suction body is connected to the main body side dust collection chamber of the vacuum cleaner body is used for collecting the dust on the suction body side. In a vacuum cleaner that passes through the room and conveys the dust in the dust collection chamber to the dust collection chamber on the main body side ,
Openings are provided in the wall on the brush chamber side of the dust collection chamber on the suction body provided on the suction body and on the wall facing the wall, and the opening provided on the wall on the brush chamber side and the brush chamber side The opening provided in the wall facing the wall of the suction port is such that both projection surfaces overlap at least partially when projected onto a plane including a center line parallel to the longitudinal direction of the suction body of the dust collection chamber on the suction body side. A vacuum cleaner characterized by being an opening arranged.   2. The center axis of the opening provided on the wall facing the brush chamber side wall in the air flow direction according to claim 1 is a center of the opening provided on the brush chamber side wall in the air flow direction. A vacuum cleaner characterized by being on the side of an electric blower on the side of the mouthpiece provided in the mouthpiece from the shaft.   2. The electric device according to claim 1, wherein the opening provided in the wall facing the brush chamber side wall and the opening provided in the brush chamber side wall are provided with an openable and closable valve. Vacuum cleaner.

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