JP2022053364A - Suction tool and vacuum cleaner - Google Patents

Abstract

To provide a suction tool and vacuum cleaner capable of suppressing entanglement of fiber wastes such as hair around a rotary brush.SOLUTION: A suction tool 2 comprises a suction port body 3, a rotary brush 4 disposed inside the suction port body 3, and drive means for rotating the rotary brush 4. The suction port body 3 includes a first suction opening 5 for sucking dust along with air from a cleaning object surface, a second suction opening 6 located in front of the first suction opening 5 and sucking dust along with air from the cleaning object surface, a first air passageway 7 that becomes a passageway of the air sucked from the first suction opening 5 and in which the rotary brush 4 is located, and a second air passageway 8 that becomes a passageway of the air sucked from the second suction opening 6 and that is spaced from the first air passageway 7. The suction tool 2 is configured to change over between a first suction form of distributing the air to both the first air passageway 7 and the second air passageway 8, and a second suction form of distributing the air to the first air passageway 7 and suppressing the air distribution to the second air passageway 8.SELECTED DRAWING: Figure 2

Description

The present disclosure relates to suction tools and vacuum cleaners.

In Patent Document 1 below, two suction passages selectively switched and connected by a passage switching valve are provided on the suction side of an electric blower, and an air turbine and a rotary brush driven by the air turbine are provided in one suction passage. The floor nozzle of the electric vacuum cleaner provided is disclosed.

Japanese Unexamined Patent Publication No. 60-18142

The above-mentioned conventional technique has a problem that fiber dust such as hair is easily entangled with the rotating brush when the rotating brush is rotated for cleaning.

The present disclosure has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a suction tool and an electric vacuum cleaner capable of suppressing fiber dust such as hair from being entangled with a rotating brush.

The suction tool according to the present disclosure is a suction tool having a suction port body, a rotating brush arranged inside the suction port body, and a driving means for rotating the rotating brush, and the suction port body is from the surface to be cleaned. It is a first suction opening that sucks dust with air, a second suction opening that is located in front of the first suction opening and sucks dust with air from the surface to be cleaned, and a passage for air sucked from the first suction opening. The first air passage where the rotating brush is located and the second air passage which becomes the passage of the air sucked from the second suction opening and is separated from the first air passage are provided, and the first air passage and the second air passage are provided. It is configured to be able to switch between the first suction form in which air is circulated through both the air passage and the second suction form in which air is circulated in the first air passage and the air flow in the second air passage is suppressed. Is.
The vacuum cleaner according to the present disclosure is equipped with the above suction tool.

According to the present disclosure, it is possible to provide a suction tool and an electric vacuum cleaner capable of suppressing fiber dust such as hair from being entangled with a rotating brush.

It is a perspective view which shows the suction tool by Embodiment 1. FIG. It is sectional drawing side view which shows the suction tool by Embodiment 1. FIG. It is a side view which shows the suction tool by Embodiment 1. FIG. It is a perspective view which shows an example of the electric vacuum cleaner provided with the suction tool according to Embodiment 1. FIG. It is a perspective view which shows the suction tool by Embodiment 2. FIG. It is sectional drawing side view which shows the suction tool by Embodiment 2. FIG. It is sectional drawing side view which shows the suction tool by Embodiment 2. FIG.

Hereinafter, embodiments will be described with reference to the drawings. The same reference numerals are given to the elements common to or corresponding to each other in the drawings, and the description thereof will be simplified or omitted. When the angle is referred to in the present disclosure, when there is a superior angle and an obtuse angle in which the sum is 360 °, in principle, the angle of the inferior angle is referred to, and there are an acute angle and an obtuse angle in which the sum is 180 °. In some cases, it refers to an acute angle in principle.

Embodiment 1.
FIG. 1 is a perspective view showing a suction tool 2 according to the first embodiment. FIG. 2 is a cross-sectional side view showing the suction tool 2 according to the first embodiment. FIG. 3 is a side view showing the suction tool 2 according to the first embodiment. FIG. 4 is a perspective view showing an example of the vacuum cleaner 1 provided with the suction tool 2 according to the first embodiment.

In the following description, dust and other dust may be collectively referred to simply as "dust". In addition, air mixed with dust may be referred to as "dust-containing air". The air from which dust has been removed may be referred to as "clean air".

In the present disclosure, the front-back direction of the suction tool 2 corresponds to the direction indicated by the arrow in FIGS. 1 to 4. For example, the front for the user cleaning with the vacuum cleaner 1 shown in FIG. 4 corresponds to the front direction for the suction tool 2, and the rear for the user corresponds to the rear direction for the suction tool 2. do. Further, the movement of the suction tool 2 in the forward direction is referred to as "advance". Further, as a general rule, the suction tool 2 will be described as being placed on a horizontal surface to be cleaned.

As shown in FIG. 2, the suction tool 2 has a suction port body 3, a rotary brush 4 arranged inside the suction port body 3, and a driving means for rotating the rotary brush 4. The drive means may be, for example, an electric motor or an air turbine. The suction tool 2 may be a self-propelled one that can move forward by the rotational force of the rotary brush 4.

The suction port body 3 moves on the surface to be cleaned at the time of cleaning. The suction port 3 includes a first suction opening 5 for sucking dust together with air from the surface to be cleaned, and a second suction opening 6 for sucking dust together with air from the surface to be cleaned. The second suction opening 6 is located in front of the first suction opening 5.

The suction port 3 further includes a first air passage 7 and a second air passage 8. The first air passage 7 becomes a passage for air sucked from the first suction opening 5. The rotating brush 4 is located in the first air passage 7. The dust scraped up from the surface to be cleaned by the rotating brush 4 is sucked into the first air passage 7 through the first suction opening 5. The second air passage 8 becomes a passage for air sucked from the second suction opening 6. The second air passage 8 is separated from the first air passage 7.

The suction tool 2 is configured to be able to switch between a first suction form and a second suction form. The first suction form is a form in which air is circulated through both the first air passage 7 and the second air passage 8. The second suction form is a form in which air is circulated through the first air passage 7 to suppress the flow of air in the second air passage 8.

In the present disclosure, bulky and light dust such as hair or lint is referred to as "fiber dust". For example, it is assumed that the surface to be cleaned such as tatami mats or flooring is cleaned by the first suction form. In this case, if the suction tool 2 encounters fiber dust while the suction tool 2 is advancing on the surface to be cleaned, air is sucked from the second suction opening 6 located before the first suction opening 5. Therefore, the fiber dust is sucked into the second suction opening 6 before being sucked into the first suction opening 5. The fiber dust sucked into the second suction opening 6 passes through the second air passage 8. The second air passage 8 is separated from the first air passage 7 where the rotating brush 4 is located. Therefore, the fiber dust passing through the second air passage 8 does not come into contact with the rotating brush 4, and therefore does not get entangled with the rotating brush 4. As described above, in the present embodiment, by selecting the first suction mode when cleaning the surface to be cleaned such as tatami mats or flooring, fiber dust is surely suppressed from being entangled with the rotating brush 4. can.

Further, when cleaning in the first suction mode, there is a possibility that dust having a high density or dust adhering to the surface to be cleaned cannot be sucked into the second suction opening 6. By being scraped up by the rotating brush 4, such dust is separated from the surface to be cleaned and sucked into the first suction opening 5. As a result, a high cleaning effect can be obtained. In recent years, a rotating brush 4 made of a material that does not easily damage the surface to be cleaned, a floor material that does not easily damage the surface, or the like is often used. Therefore, even if the rotating brush 4 is rotated when cleaning the surface to be cleaned such as tatami mats or flooring, the surface to be cleaned is not damaged. Further, there is an advantage that the operation load of the user is reduced by the self-propelled force due to the rotation of the rotating brush 4.

Next, it is assumed that the surface to be cleaned, which requires a high suction force, such as a carpet, is cleaned by the second suction form. In the second suction mode, the flow of air in the second air passage 8 is suppressed, so that air is not sucked through the second suction opening 6. Therefore, in the second suction mode, the substantial opening area and the substantial air passage cross section of the suction port body 3 are smaller than those in the first suction mode, so that the suction force is larger than that in the first suction mode. Will also grow. Therefore, in the present embodiment, by selecting the second suction mode when cleaning a surface to be cleaned that requires a high suction force such as a carpet, the suction force is improved and a high cleaning effect is obtained. can get.

In the present embodiment, the suction port 3 includes a partition wall 9 that separates the first air passage 7 from the second air passage 8. The partition wall 9 can be moved to a first position corresponding to the first suction form and a second position corresponding to the second suction form. The partition wall 9 blocks the second air passage 8 at the second position, thereby suppressing the air flow in the second air passage 8. In the present embodiment, since the second air passage 8 can be blocked by the movable partition wall 9, it is necessary to provide a dedicated component for closing the second air passage 8 in the second suction mode. There is no. Therefore, it is possible to switch between the first suction form and the second suction form with a simple structure having a small number of parts.

As shown in FIG. 1, the suction tool 2 of the present embodiment further includes a connecting pipe 10. The connecting pipe 10 is arranged on the rear surface side of the suction port 3 at substantially the center in the longitudinal direction of the suction port 3. The longitudinal direction of the suction port 3 is a direction perpendicular to the front-rear direction of the suction tool 2 and a direction parallel to the surface to be cleaned. The dust-containing air sucked into the suction port 3 flows into the connecting pipe 10. The connecting pipe 10 has a joint structure that can rotate around one or a plurality of rotation axes. Depending on the joint structure, the angle and direction of the central axis of the connecting pipe 10 with respect to the surface to be cleaned can be changed.

The suction port body 3 has a structure in which an upper case 3a and a lower case 3b are combined. The suction port body 3 has an elongated shape in appearance. The suction port 3 has a substantially rectangular shape in a plan view. The rotation axis of the rotation brush 4 is parallel to the longitudinal direction of the suction port body 3.

As shown in FIG. 2, the first suction opening 5 and the second suction opening 6 open on the lower surface of the suction port body 3. The first suction opening 5 and the second suction opening 6 are separated by a lower portion of the partition wall 9. The second suction opening 6 is formed between the lower end of the front wall 3c of the suction port body 3 and the lower end of the partition wall 9. The front wall 3c forms the front surface of the suction port body 3. For example, the front wall 3c may be composed of parts different from the upper case 3a and the lower case 3b, or the front wall 3c may be integrated with either the upper case 3a or the lower case 3b. A part of the front wall 3c may be integrated with the upper case 3a, and the rest of the front wall 3c may be integrated with the lower case 3b.

The second air passage 8 is formed between the front wall 3c and the partition wall 9. FIG. 2 shows a state in which the partition wall 9 is in the first position, that is, a state in which the partition wall 9 is in the first suction form. In this state, a gap through which dust-containing air can pass is formed between the upper end of the partition wall 9 and the inner wall of the upper case 3a. Further, in this state, the first air passage 7 and the second air passage 8 merge on the upstream side of the connecting pipe 10.

As shown in FIG. 3, support shafts 11 for supporting the partition wall 9 are provided at two points at the corners of the lower end of the partition wall 9. The partition wall 9 in the present embodiment moves to the first position and the second position by rotationally moving around the support shaft 11. In FIG. 3, both the partition wall 9 at the first position and the partition wall 9 at the second position are drawn for ease of understanding, but in reality, the first position and the second partition wall 9 are drawn. The partition wall 9 is located at one of the positions.

In the state where the partition wall 9 is in the second position, that is, in the state of the second suction mode, the upper end of the partition wall 9 comes into contact with the inner wall of the upper case 3a, so that the upper end of the partition wall 9 and the inner wall of the upper case 3a are separated. Dust-containing air cannot pass through. As a result, the second air passage 8 is blocked.

The axial direction of the support shaft 11 is parallel to the axial direction of the rotary brush 4. The support shaft 11 is attached to the inner wall on the side surface of the lower case 3b. In the illustrated example, protrusions 12 are provided at two corners of the upper end of the partition wall 9. The protruding portion 12 projects out of the upper case 3a from a groove formed on the side surface of the upper case 3a. Therefore, the user can touch the protrusion 12 by hand. The user can switch between the first suction form and the second suction form by manually moving the protrusion 12 to move the partition wall 9 to the first position or the second position.

Instead of the configuration in which the partition wall 9 is manually moved by the user as in the illustrated example, the suction tool 2 may be provided with an actuator capable of moving the partition wall 9 between the first position and the second position. ..

The rotary brush 4 has, for example, a shaft 4a and a cleaning body 4b attached to the outer periphery of the shaft 4a. Dust is scraped up by rotating the cleaning body 4b while in contact with the surface to be cleaned. The cleaning body 4b may be formed, for example, by attaching a large number of nylon flocking to the shaft 4a. When sucking dust on the surface to be cleaned having a narrow gap such as a carpet, the cleaning body 4b plays a role of scraping out the dust from the back of the gap.

As shown in FIG. 4, the vacuum cleaner 1 of the present embodiment extends the suction tool 2, the main body portion 13, the operation portion 14, the handle portion 15, the dust collecting portion 16, and the suction pipe 17. It is equipped with a tube 18. The connecting pipe 10 of the suction tool 2 is connected to the suction pipe 17 via the extension pipe 18. Such a vacuum cleaner 1 corresponds to a cordless type vertical vacuum cleaner. Hereinafter, the vacuum cleaner according to the present disclosure will be described by taking the vacuum cleaner 1 as an example, but the vacuum cleaner according to the present disclosure is not limited to the cordless type vertical vacuum cleaner. The electric vacuum cleaner according to the present disclosure is also applicable to, for example, a canister type vacuum cleaner or a robot vacuum cleaner. Further, the suction tool according to the present disclosure may constitute, for example, a part of a canister type vacuum cleaner or a part of a robot vacuum cleaner. Further, the vacuum cleaner according to the present disclosure is not limited to a rechargeable vacuum cleaner, and may be supplied with electric power from an outlet via a power cord.

The main body 13 contains an electric blower for generating suction air, a rechargeable battery as a power source, and a control unit 50. The suction pipe 17 protrudes from the main body 13. The main body 13 of the illustrated example has an elongated shape in the same direction as the longitudinal direction of the suction pipe 17 and the extension pipe 18. The operation unit 14 is a part operated by the user to control the operation of the vacuum cleaner 1. The handle portion 15 is a portion that the user grips during cleaning. Although the operation unit 14 in the illustrated example is arranged in the main body unit 13, the operation unit 14 may be arranged in the handle unit 15 as a modification. The handle portion 15 in the illustrated example has a curved shape, but as a modification, at least a part of the handle portion 15 may have a shape extending along the longitudinal direction of the main body portion 13. The dust collecting portion 16 is attached to the main body portion 13. The dust collector 16 may be, for example, a cyclone type or a paper pack type.

When the vacuum cleaner 1 is placed on a charging stand (not shown), the vacuum cleaner 1 is charged. The vacuum cleaner 1 is contact-supported by a support portion provided on the charging stand. The support portion and the main body portion 13 of the charging stand are provided with a contact-type charging mechanism. When the main body portion 13 and the support portion come into contact with each other, the rechargeable battery of the main body portion 13 is charged.

When the user removes the vacuum cleaner 1 from the charging stand and operates the operation unit 14 when using the electric vacuum cleaner 1, the electric blower in the main body unit 13 is driven and the suction operation is started. As a result, the dust-containing air is sucked into the suction port 3 from the surface to be cleaned. At this time, in the first suction form, dust-containing air is sucked from both the first suction opening 5 and the second suction opening 6, and in the second suction form, dust-containing air is sucked only from the first suction opening 5. Is done. The dust-containing air sucked into the suction port 3 flows into the dust collecting unit 16 through the connecting pipe 10, the extension pipe 18, and the suction pipe 17. Dust is separated from the dust-containing air in the dust collecting unit 16, and the separated dust is collected in the dust collecting unit 16. The clean air that has passed through the dust collecting unit 16 passes through the electric blower and is discharged from the main body unit 13 to the outside. The vacuum cleaner 1 may be used in a state where the extension pipe 18 is removed from the suction pipe 17 and the connecting pipe 10 of the suction tool 2 is directly connected to the suction pipe 17.

As described above, in the first suction mode, the fiber dust is sucked from the second suction opening 6, passes through the second air passage 8, and reaches the connecting pipe 10 without contacting the rotating brush 4. Therefore, the fiber dust is collected by the dust collecting unit 16 without being entangled with the rotating brush 4. As described above, since the fiber dust does not get entangled with the rotating brush 4, it is possible to prevent the dirt of the fiber dust from adhering to the rotating brush 4. Therefore, the frequency of maintenance of the rotating brush 4 can be reduced, and dirt adhering to the rotating brush 4 can be reliably prevented from being rubbed against the surface to be cleaned and reattached to the surface to be cleaned.

Embodiment 2.
Next, the second embodiment will be described with reference to FIGS. 5 to 7, but the differences from the above-described first embodiment will be mainly described, and the common description will be simplified or omitted. Further, the same reference numerals are given to the elements common to or corresponding to the above-mentioned elements. FIG. 5 is a perspective view showing the suction tool 19 according to the second embodiment. 6 and 7 are cross-sectional side views showing the suction tool 19 according to the second embodiment. Note that FIG. 6 shows the first air passage form, and FIG. 7 shows the second air passage form.

As shown in these figures, the suction tool 19 is attached to the suction port body 20, the rotary brush 4 arranged inside the suction port body 20, the driving means for rotating the rotary brush 4, and the suction port body 20. It has a connecting pipe 10 and a connection pipe 10.

The suction port body 20 includes a first case 21, a second case 22, and a lower case 23. The first case 21 is arranged on the lower case 23. The second case 22 is arranged so as to cover a part of the upper surface of the first case 21 and the front surface of the first case 21. In addition, at least a part of the lower case 23 may be integrated with the first case 21.

As shown in FIG. 6, the first air passage 7 is formed inside the first case 21. The first case 21 has a partition wall 21a that separates the first air passage 7 from the second air passage 8. Further, a ventilation hole 21b is formed on the upper surface of the first case 21 in the portion covered by the second case 22. The second case 22 has a front wall 22a located in front of the partition wall 21a. A second air passage 8 is formed between the front wall 22a and the partition wall 21a. A second suction opening 6 is formed between the lower end of the front wall 22a and the lower end of the partition wall 21a. The second case 22 forms the front surface of the suction port body 20.

In the first suction mode, the fiber dust sucked from the second suction opening 6 passes through the second air passage 8 to prevent contact with the rotating brush 4. The dust contained in the second air passage 8 passes through the ventilation hole 21b, joins the first air passage 7 on the upstream side of the connecting pipe 10, and then is sucked into the connecting pipe 10.

The second case 22 is movable with respect to the first case 21 to a first position corresponding to the first suction form (FIG. 6) and a second position corresponding to the second suction form (FIG. 7). .. The second position is the position where the second case 22 has moved backward from the first position. At the second position, the front wall 22a is closer to the partition wall 21a than at the first position. Therefore, the second suction opening 6 and the second air passage 8 are narrower and closed than in the first position. As in the example shown in FIG. 7, the second suction opening 6 may be completely closed at the second position. Further, the second air passage 8 may be completely closed by the front wall 22a coming into contact with the partition wall 21a at the second position.

In the second embodiment, the first suction mode and the second suction mode can be switched by moving the second case 22 with respect to the first case 21. As a result, the same effect as that of the first embodiment described above can be obtained. The second case 22 may be configured to be manually moved by the user with respect to the first case 21, or an actuator capable of automatically moving the second case 22 with respect to the first case 21 may be provided. The suction tool 19 may be provided.

The horizontal distance D1 in FIG. 6 is the horizontal distance from the front end of the suction port body 20 in the first suction mode to the leading edge of the first suction opening 5. The horizontal distance D2 in FIG. 7 is the horizontal distance from the front end of the suction port body 20 in the second suction mode to the leading edge of the first suction opening 5. The horizontal distance D2 is smaller than the horizontal distance D1.

In the first embodiment described above, the horizontal distance from the front end of the suction port 3 to the leading edge of the first suction opening 5 in the second suction mode is the same as in the first suction mode. Therefore, when the front end of the suction port 3 is pressed against the wall during cleaning in the second suction mode, dust is not sucked from the second suction opening 6, so that dust left on the wall is likely to be left behind.

In contrast, in the second embodiment, the horizontal distance D2 in the second suction mode is smaller than the horizontal distance D1 in the first suction mode, so that the first suction opening 5 is walled. Can be reached near. As a result, it is possible to reduce the amount of dust left behind on the wall as compared with the first embodiment.

Embodiment 3.
Next, the third embodiment will be described, but the differences from the above-described embodiments will be mainly described, and the common description will be simplified or omitted. Further, the same reference numerals are given to the elements common to or corresponding to the above-mentioned elements.

The vacuum cleaner according to the third embodiment is a control that automatically switches between the first suction mode and the second suction mode according to the type of the surface to be cleaned and the surface detection unit to be cleaned and the type of the surface to be cleaned. A unit 50 is provided. The "type of surface to be cleaned" is, for example, flooring, carpet, tatami mat, futon, and the like. The vacuum cleaner according to the third embodiment may be, for example, a cordless type vertical vacuum cleaner as shown in FIG. 4, a canister type vacuum cleaner, or a robot vacuum cleaner. The suction tool included in the vacuum cleaner according to the third embodiment may be, for example, the suction tool 2 according to the first embodiment or the suction tool 19 according to the second embodiment. The suction tool provided in the vacuum cleaner according to the third embodiment includes an actuator that can automatically switch between the first suction form and the second suction form.

The control unit 50 automatically switches between the first suction mode and the second suction mode by driving the actuator according to the type of the surface to be cleaned detected by the surface to be cleaned detection unit. For example, the control unit 50 may switch to the first suction form when the surface to be cleaned is flooring or tatami mats, and may switch to the second suction form when the surface to be cleaned is a carpet. In the third embodiment, in addition to the same effects as those in the first or second embodiment, when various types of surfaces to be cleaned are cleaned at once, the user can use the first suction mode and the second suction mode. Convenience is improved by eliminating the trouble of switching between.

Since the frictional resistance between the rotating brush 4 and the surface to be cleaned differs depending on the type of the surface to be cleaned, the drive load of the rotating brush 4 differs. When the rotary brush 4 is driven by an electric motor, the surface to be cleaned detection unit may detect the type of the surface to be cleaned by utilizing this. For example, the drive load of the rotary brush 4 may be detected from the current of the electric motor, and the control unit 50 may determine the type of the surface to be cleaned from the detected drive load.

Alternatively, a camera (not shown) for photographing the surface to be cleaned is provided as the surface to be cleaned detection unit, and the control unit 50 processes the image of the surface to be cleaned captured by the camera to determine the type of the surface to be cleaned. You may.

The control unit 50 may be configured as follows. Each function of the control unit 50 may be achieved by a processing circuit. The processing circuit of the control unit 50 may include at least one processor and at least one memory. When the processing circuit includes at least one processor and at least one memory, each function of the control unit 50 may be achieved by software, firmware, or a combination of software and firmware. At least one of the software and firmware may be written as a program. At least one of the software and firmware may be stored in at least one memory. At least one processor may achieve each function of the control unit 50 by reading and executing a program stored in at least one memory. The at least one memory may include a non-volatile or volatile semiconductor memory, a magnetic disk, and the like.

The processing circuit of the control unit 50 may include at least one dedicated hardware. When the processing circuit comprises at least one dedicated hardware, the processing circuit may be, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), an FPGA (Field-). The Programmable Gate Array), or a combination thereof may be used. The functions of each unit of the control unit 50 may be achieved by the processing circuit. Further, the functions of the respective parts of the control unit 50 may be collectively achieved by the processing circuit. For each function of the control unit 50, a part may be achieved by dedicated hardware and another part may be achieved by software or firmware. The processing circuit may achieve each function of the control unit 50 by hardware, software, firmware, or a combination thereof.

The configuration is not limited to the configuration in which the operation is controlled by a single control unit 50, and the operation may be controlled by the cooperation of a plurality of control units 50.

1 Vacuum cleaner, 2 Suction tool, 3 Suction port, 3a Upper case, 3b Lower case, 3c Front wall, 4 Rotating brush, 4a Shaft, 4b Cleaning body, 5 First suction opening, 6 Second suction opening, 7 1st air passage, 8 2nd air passage, 9 partition, 10 connecting pipe, 11 support shaft, 12 protruding part, 13 main body part, 14 operation part, 15 handle part, 16 dust collecting part, 17 suction pipe, 18 extension pipe , 19 Suction tool, 20 Suction port, 21 First case, 21a partition, 21b Ventilation hole, 22 Second case, 22a front wall, 23 lower case, 50 Control unit

Claims (5)

With the suction port
With the rotating brush arranged inside the suction port body,
The driving means for rotating the rotating brush and
In a suction device with
The suction port is
The first suction opening that sucks dust together with air from the surface to be cleaned,
A second suction opening located in front of the first suction opening and sucking dust together with air from the surface to be cleaned, and a second suction opening.
It becomes the passage of the air sucked from the first suction opening, and the first air passage where the rotating brush is located and
The second air passage, which becomes a passage for air sucked from the second suction opening and is separated from the first air passage,
Equipped with
A first suction mode in which air is circulated through both the first air passage and the second air passage, and a second mode in which air is circulated through the first air passage to suppress the air flow in the second air passage. A suction tool configured to be switchable between the suction form. The suction port body includes a partition wall that separates the first air passage from the second air passage.
The partition wall can be moved to a first position corresponding to the first suction form and a second position corresponding to the second suction form.
The suction tool according to claim 1, wherein the partition wall closes the second air passage at the second position. The suction port body includes a first case having a partition wall separating the first air passage from the second air passage, and a second case having a front wall located in front of the partition wall.
The second air passage is formed between the front wall and the partition wall, and the second air passage is formed.
The second suction opening is formed between the lower end of the front wall and the lower end of the partition wall.
The second case forms the front surface of the suction port body.
The second case has a first position corresponding to the first suction form and a second position corresponding to the second suction form in which the front wall approaches the partition wall with respect to the first case. Movable,
The horizontal distance from the front end of the suction port body in the second suction form to the front edge of the first suction opening is the front edge of the first suction opening from the front end of the suction port body in the first suction form. The suction device according to claim 1, which is smaller than the horizontal distance to. A vacuum cleaner provided with the suction device according to any one of claims 1 to 3. The surface to be cleaned detection unit that detects the type of the surface to be cleaned, and
A control unit that automatically switches between the first suction mode and the second suction mode according to the type of the surface to be cleaned.
The vacuum cleaner according to claim 4.

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