WO2013042975A2

WO2013042975A2 - Automatic vacuum cleaner

Info

Publication number: WO2013042975A2
Application number: PCT/KR2012/007578
Authority: WO
Inventors: 양해석; 김용균; 유선일; 송승현; 신현선; 김효성
Original assignee: 엘지전자 주식회사
Priority date: 2011-09-23
Filing date: 2012-09-21
Publication date: 2013-03-28
Also published as: AU2012310377B2; EP2737837A4; EP2737837A2; EP2737837B1; EP2997870B1; EP2737837A8; WO2013042975A3; US20130291331A1; AU2012310377A1; AU2012310377A8; EP2997870A1; CN103402412A

Abstract

The present invention relates to a robot cleaner. The robot cleaner according to an aspect comprises: a casing having a suction port; a suctioning member installed in the casing and suctioning external foreign substances through the suction port; a driving member moving the casing; and a side brush assembly movably installed on the casing, wherein the side brush assembly includes a brush allowing foreign substances in a region outside the casing to move toward the suction port by rotation of the side brush assembly, and a rotational axis of the brush can be moved horizontally.

Description

Auto cleaner

The present specification relates to an automatic cleaner.

In general, a vacuum cleaner is a home appliance that sucks and removes foreign substances on the floor. Recently, among these cleaners, the vacuum cleaner which cleans automatically is called an automatic cleaner. The automatic cleaner sucks and removes foreign substances on the bottom surface while moving by the driving force of the motor operated by the rechargeable battery.

A moving device is installed in the casing which forms the appearance of a general automatic cleaner. In addition, the automatic cleaner sucks the foreign matter located on the floor while the automatic cleaner moves in a predetermined direction. To this end, a suction port for suctioning foreign substances on the bottom surface is formed at the bottom of the casing. In addition, a main brush may be provided on the suction port to directly contact the foreign material so that the foreign material is sucked through the suction port.

However, such an automatic cleaner sucks only foreign substances in an area corresponding to the lower side of the casing, and substantially in an area corresponding to the lower side of the suction port. Therefore, in the case of the area corresponding to the outside of the suction port, there is a disadvantage that the cleaning is not made correctly.

In order to prevent this, conventionally, a side brush is provided on the bottom of the casing. At least a part of the side brush extends out of the casing. And the side brush rotates with respect to the casing, and serves to sweep the foreign matter in the area corresponding to the outer side of the casing, the suction port toward the suction port.

However, the following problems occur with the automatic cleaner according to the related art.

As described above, foreign matter in an area corresponding to the outside of the suction port is sucked through the suction port by the rotation of the side brush. Therefore, as the length of the side brush increases, the area cleaned by the automatic cleaner increases substantially. However, if the length of the side brush is increased, the side brush may be damaged during the cleaning process or storage. In addition, when the length of the side brush is increased, the area occupied by the automatic cleaner increases, which causes disadvantages in that the storage of the automatic cleaner becomes inconvenient.

An object of the present invention is to provide an automatic cleaner which can effectively perform corner cleaning.

Automatic cleaner according to one aspect, Robot cleaner according to one aspect, the casing having a suction port; A suction device installed inside the casing and suctioning foreign substances through the suction port; A moving device for moving the casing; And a side brush assembly movably mounted to the casing, wherein the side brush assembly includes a brush for moving a foreign material in an area corresponding to the outside of the casing toward the suction port by a rotation operation, wherein the side By the movement of the brush assembly, it is characterized in that the axis of rotation of the brush can move in the horizontal direction.

The side brush assembly may further include a movable member movably provided in the casing, and the brush may be rotatably installed on the movable member.

When the movable member moves, the upper and lower overlap areas of the movable member and the casing may vary.

In the state where the suction device is stopped, the movable member is in the first position, and when the suction device is operated, the movable member can move to the second position.

When the suction device is in operation, the movable member can remain stationary in the second position.

When the suction device is activated, the movable member can move between the first position and the second position.

The movable member is movable when the suction device is operated.

The brush may be rotated when the suction device is operated, and the movable member may be moved when the casing is close to a wall within a predetermined distance.

The apparatus may further include a first driving member generating a driving force for moving the movable member, and a second driving member generating a driving force for rotating the brush.

The first driving member and the second driving member may be provided in the casing.

The first driving member may be provided in the casing, and the second driving member may be provided in the movable member to move together with the movable member.

The movable member may be installed in the casing so as to be linearly movable.

The movable member may be rotatably installed on the casing about a rotation shaft.

A plurality of side brush assemblies may be provided, and movable members of the side brush assemblies adjacent to a wall of the plurality of side brush assemblies may move.

According to another aspect, an automatic cleaner includes: a casing having a suction port; A suction device provided in the casing and suctioning foreign substances through the suction port; A moving device for moving the casing; A main brush for removing the foreign matter by contacting the foreign matter through the suction port; A main driving member providing a driving force for rotating the main brush; A movable member movably installed in the casing; A first driving member providing a driving force for the movement of the movable member; And a brush rotatably installed on the movable member to move the foreign matter toward the suction port side.

The movable member is in a first position with the suction device stationary and can move to the second position when the suction device is operated.

A second driving member for driving the brush is further included, and the second driving member can operate when the suction device is operated.

The apparatus may further include a first detector configured to detect the first position of the movable member, and a second detector configured to sense the second position of the movable member.

The first drive member can operate when the casing is positioned adjacent to the wall surface.

When the first driving member is operated, the vertical overlapping area of the movable member and the casing may vary.

According to the proposed invention, since the side brush assembly can be drawn out of the casing, there is an advantage that the corner cleaning can be performed effectively.

1 is a perspective view showing the bottom of the automatic cleaner of the first embodiment;

2 is a configuration diagram schematically showing the automatic cleaner of the first embodiment;

3 and 4 are bottom views showing the operation of the side brush assembly of the automatic cleaner of the first embodiment.

Fig. 5 is a bottom view showing the operation of the side brush assembly of the automatic cleaner according to the second embodiment.

6 and 7 are bottom views showing the operation of the side brush assembly of the automatic cleaner according to the third embodiment.

8 is a bottom view showing the operation of the side brush assembly of the automatic cleaner in the fourth embodiment.

Figure 9 is a bottom view showing the operation of the side brush assembly of the automatic cleaner in the fifth embodiment.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing the bottom of the automatic cleaner according to the first embodiment, and FIG. 2 is a configuration diagram schematically showing the automatic cleaner according to the first embodiment.

1 and 2, the automatic cleaner 100 (hereinafter, referred to as a “cleaner” for convenience of description) according to the first embodiment includes a casing 110 forming an appearance. The casing 110 may be formed in a flat polyhedron shape, but the shape of the casing 110 is not limited thereto. Inside the casing 110, various components constituting the cleaner 100 are installed. For example, the inside of the casing 110 may be provided with suction means (not shown) for suctioning foreign matters and dust collecting means (not shown) for collecting the sucked foreign matters.

In addition, a suction port 111 is formed at a bottom of the casing 110. The suction port 111 serves as an inlet in which foreign matter is sucked into the casing 110 and substantially the dust collecting means by the suction means. The suction port 111 is formed by cutting a portion of the bottom surface of the casing 110.

Meanwhile, a mounting groove 113 is formed at the bottom of the casing 110. The seating groove 113 is formed by recessing a portion of the bottom surface of the casing 110 upwardly relative to the bottom of the bottom surface of the casing 110. In the present embodiment, it will be described by way of example that the two mounting grooves 113 are formed on both sides of the suction port 111, but in this embodiment it is clear that the number of the mounting grooves 113 is not limited. .

The main brush 120 is installed at a position corresponding to the suction port 111 in the casing 110. The main brush 120 penetrates through the suction port 111 and serves to remove foreign substances by contacting foreign substances on the surface to be cleaned. The main brush 120 is rotatably installed in a state exposed downward through the inlet 111. In addition, the main driving member 130 provides a driving force for the rotation of the main brush 120.

In addition, the casing 110 is provided with a moving device 140 for the movement of the casing 110. For example, the moving device 140 may include a driving motor (not shown) installed inside the casing 110 and a wheel rotated by the driving motor.

At the bottom of the casing 110, one or more side brush assemblies 150 are installed. In this embodiment, a plurality of side brush assemblies 150 are installed on the bottom of the casing 110 as an example.

The side brush assembly 150 is installed in the casing 110 to be movable. For example, the side brush assembly 150 may be selectively positioned below the casing 110 or outside the casing 110 with respect to the casing 110 by a rotation operation. The side brush assembly 150 serves to allow the suction means to suck foreign substances located in an area corresponding to the outside of the suction port 111 through the suction port 111.

The side brush assembly 150 may include a movable member 151 and a brush 152 rotatably installed on the movable member 151.

In more detail, the movable member 151 may be formed in a polyhedron shape corresponding to the seating groove 113. For example, the movable member 151 may be rotatably installed on the bottom surface of the casing 110 about the rotation shaft 151A in the vertical direction. As will be described later, since the brush 152 is connected to the movable member 151, the movable member 151 may be referred to as a brush holder.

The brush 152 may be rotatably installed on the movable member 151. The brush 152 moves the foreign matter located in an area substantially corresponding to the outside of the suction port 111 to the lower side of the suction port 111. The brush 152 may include a plurality of hairs 153 positioned to be spaced apart from each other by a predetermined angle. In the present embodiment, the number and positions of the mothers 153 are not limited thereto.

The side brush assembly 150 may further include a leg member 154.

The leg member 154 is provided on the bottom surface of the movable member 151. The leg member 154 allows the brush 152 to be spaced apart from the floor surface to be cleaned. This is to prevent the phenomenon in which the brush 152 is in close contact with the bottom surface during the cleaning process and the brush 152 is damaged or the rotation of the brush 152 is interfered with. To this end, the bottom of the leg member 154 is substantially positioned below the bottom of the brush 152.

The side brush assembly 150 may further include first and second driving members 155 and 156.

The first driving member 155 provides the driving force for the movable member 151 to rotate. The first driving member 155 may be installed in the casing 110. The first driving member 155 directly transmits a driving force to the movable member 151, or a driving force of the first driving member 155 is driven by a separate driving force transmitting member (not shown). Can be delivered to.

In this embodiment, the side brush assembly 150 is either one of the first position (see FIG. 3) or the second position (see FIG. 4) by the movement of the movable member 151 relative to the casing 110. Is optionally located. Here, the first position means a position where the side brush assembly 150 is positioned below the casing 110. In the present embodiment, when the side brush assembly 150 is positioned in the first position, the projection of the movable member 151 in the vertical direction is projected of the casing 110 in the vertical direction. It is located inside of. The second position means a position where the side brush assembly 150 is located outside the casing 110. When the side brush assembly 150 moves between the first position and the second position, the rotation axis 152A of the brush 152 may move in the horizontal direction.

In the present embodiment, when the side brush assembly 150 is positioned in the second position, the projection of a part of the movable member 151 in the up and down direction is outside the projection of the casing 110 in the up and down direction. And the remaining projection of the movable member 151 in the up and down direction is located inside the projection of the casing 110 in the up and down direction. That is, an area in which the movable member 151 and the casing overlap in the vertical direction may be changed by the movement of the side brush assembly 150. The overlap area of the movable member 151 and the casing is larger when the side brush assembly 150 is in the first position than when the second brush assembly 150 is in the second position.

In addition, the movable member 151 may be said to be seated in the seating groove 113 when the side brush assembly 150 is located in the second position. In addition, in the present embodiment, when the side brush assembly 150 is positioned in the first position, the projection of the brush 152 in the vertical direction is also located inside the projection of the casing 110 in the vertical direction. . In addition, when the side brush assembly 150 is located in the second position, the projection of the brush 152 in the vertical direction is located inside and outside of the projection of the casing 110 in the vertical direction. However, with the side brush assembly 150 positioned in the first position, the projection of a portion of the brush 152 in the up and down direction may be located outside the projection of the casing 110 in the up and down direction. have.

Meanwhile, the side brush assembly 150 may be selectively positioned at any one of the first and second positions depending on whether the cleaner is cleaned. Here, the cleaning operation of the cleaner may be understood as the same meaning as the operation of the suction means. That is, the side brush assembly 150 is located at the first position when the cleaning operation of the cleaner is not started. When the cleaning operation of the cleaner is started, the side brush assembly 150 moves and is positioned at the second position. If this is described in terms of the first driving member 155, the start of the operation of the first driving member 155 to move the side brush assembly 150 from the first position to the second position, It can be said that it is made simultaneously with the start of the operation of the suction means. In addition, the start of the operation of the first driving member 155 to move the side brush assembly 150 from the second position to the first position may be said to occur simultaneously with the stop of the operation of the suction means. . Hereinafter, for convenience of description, a direction in which the first driving member 155 operates to move the side brush assembly 150 from the first position to the second position is referred to as a forward direction, and the side brush assembly 150 ), The direction in which the first driving member 155 operates to move from the second position to the first position is called a reverse direction.

In the present embodiment, when a plurality of side brush assemblies 150 are provided in the casing 110, a movable member of some of the plurality of side brush assemblies 150 may move. For example, the movable member of the side brush assembly 150 in a position close to the wall may move from the first position to the second position.

In addition, the second driving member 156 provides a driving force for the rotation of the brush 152. For example, the second driving member 156 may be installed inside the casing 110 to transmit driving force to the brush 152 through a separate driving force transmitting member (not shown), or the movable member ( It is installed on the 151 may transmit a driving force directly to the brush 152. When the second driving member 156 is installed on the movable member 151, the second driving member 156 may move together with the movable member 151.

The start and stop of the operation of the second driving member 156 may be performed simultaneously with the start and stop of the operation of the suction means. In other words, the start and stop of the operation of the second drive member 156 coincide with the start of the rotation of the first drive member 155 in the forward direction and in the reverse direction of the first drive member 155. It can be made at the same time as the stop of rotation.

The side brush assembly 150 may further include first and second switches 157 and 158.

The first and second switches 157 and 158 serve to regulate the operation of the first driving member 155. More specifically, the first switch 157 is the first drive member 155 is rotated in the forward direction when the side brush assembly 150 is located in the second position from the first position, the first The one drive member 155 generates a signal to stop. The second switch 158 may include the first driving member 155 when the first driving member 155 rotates in the reverse direction and the side brush assembly 150 is positioned at the first position in the second position. 155 generates a signal to stop. For example, the first and second switches 157 and 158 may be turned on / off to generate a signal by the movable member 151.

Hereinafter, the operation of the first embodiment of the automatic cleaner according to the present invention will be described in more detail with reference to the accompanying drawings.

First, referring to FIG. 3, when the cleaner is not cleaned using the cleaner, that is, when the cleaner is being stored or charged, the side brush assembly 150 is positioned at the first position. Therefore, the side brush assembly 150 is positioned below the casing 110 so that the side brush assembly 150 is not exposed to the outside of the casing 110. In addition, since the side brush assembly 150 is positioned below the casing 110, the space required for storing the cleaner may be reduced. In addition, in particular, when the brush 152 is positioned below the casing 110, the brush 152 may be prevented from being damaged during the storage of the cleaner.

On the other hand, in this state, when the cleaning is started, the operation of the suction device is started, the foreign matter is sucked through the suction port 111. In addition, the mobile device 140 operates to perform cleaning while the cleaner moves.

Referring to FIG. 4, when the suction device starts, rotation of the first driving member 155 in the forward direction is started. Thus, the side brush assembly 150 is moved from the first position to the second position. More specifically, when the operation of the suction device for cleaning is started, the forward rotation of the first drive member 155 is started. Accordingly, the side brush assembly 150 is moved to the second position by the first driving member 155.

When the side brush assembly 150 is positioned at the second position, the first switch 157 generates a signal for stopping the forward rotation of the first driving member 155. Therefore, the forward rotation of the first driving member 155 is stopped, so that the side brush assembly 150 is maintained in the second position.

On the other hand, when the operation of the suction device is started, the rotation of the second drive member 156 is started. Therefore, the brush 152 is rotated to move the foreign matter in the area corresponding to the outside of the suction port 111 downward of the suction port 111. And the foreign matter moved below the suction port 111 moved by the brush 152 is sucked by the suction device.

Next, when the cleaning operation by the cleaner is finished, the operation of the suction device is terminated. When the cleaner is positioned at a predetermined position, for example, a position for charging or storing, the operation of the mobile device 140 is also stopped.

On the other hand, when the operation of the suction device is finished, the rotation of the first drive member 155 in the reverse direction is started. Thus, the side brush assembly 150 is moved from the second position to the first position. When the side brush assembly 150 is positioned at the first position, the reverse rotation of the first driving member 155 is stopped by a signal generated from the second switch 158. In addition, when the rotation of the first driving member 155 in the reverse direction is stopped, the rotation of the second driving member 156 is stopped. Therefore, the rotation of the brush 152 is also stopped.

In addition, the side brush assembly 150 is positioned at the first position, thereby preventing the side brush assembly 150, in particular, the brush 152 from being exposed to the outside of the cleaner. Therefore, in the process of charging or storing the cleaner, the phenomenon in which the side brush assembly 150 is damaged may be prevented.

Hereinafter, a second embodiment of an automatic cleaner according to the present invention will be described in more detail with reference to the accompanying drawings.

Figure 5 is a bottom view showing the operation of the side brush assembly in a second embodiment of the automatic cleaner according to the present invention. For the same components as those of the first embodiment of the present invention described above among the components of the present embodiment, reference numerals of FIGS. 1 to 4 are used, and detailed description thereof will be omitted.

Referring to FIG. 5, in the present embodiment, the side brush assembly 150 continuously moves between the first and second positions while the cleaner performs a cleaning operation. That is, the side brush assembly 150 does not maintain the state positioned at the second position during the cleaning operation, but reciprocates while forming a predetermined trajectory between the first and second positions. Therefore, the wider area can be cleaned by the movement of the side brush assembly 150.

Within the scope of the basic technical spirit of the present invention as well as many other modifications are possible to those skilled in the art, the scope of the present invention should be interpreted based on the appended claims. .

In the above-described embodiment, the start of the forward rotation and the reverse rotation of the first drive member are limited to the same time as the start and the stop of the operation of the suction means, respectively, but are not necessarily limited thereto. As another example, the rotation of the first driving member in the forward direction may be started after the operation of the suction means is started. The rotation of the first drive member in the reverse direction may also be stopped before the operation of the suction means is stopped.

In the above-described embodiment, the start and stop of the rotation of the second drive member is limited to the start of the rotation of the first drive member in the forward direction and the stop of the rotation in the reverse direction. However, as another example, the rotation of the second driving member may be started at the same time as the rotation of the first driving member in the forward direction is stopped. In another example, the rotation of the second driving member may be stopped at the same time as the start of the rotation of the first driving member in the reverse direction.

The operation of the first and second driving members may be performed in conjunction with the operation of the main driving member. For example, the start of rotation of the first drive member in the forward direction may be performed simultaneously with the start of the operation of the main drive member. In addition, the start of rotation of the first driving member in the reverse direction may be performed at the same time as the operation of the main driving member is stopped. In addition, the start and stop of the rotation of the second drive member may be performed simultaneously with the start and stop of the operation of the main drive member.

As another example, when it is detected that the casing 110 approaches a wall at a predetermined distance, the first driving member may be activated to move the movable member.

The present embodiment is the same as the first embodiment in other parts, except that the side brush assembly is linearly moved. Therefore, hereinafter, only characteristic parts of the embodiment will be described.

6 and 7, the side brush assembly 160 according to the third embodiment of the present invention includes a movable member 161 and a brush 162 rotatably provided at the movable member 161. It may include. The brush 162 includes a plurality of hairs 163. In addition, the leg member 164 may be provided in the movable member 161.

In the present embodiment, the movable member 161 may linearly move in the front-rear direction.

If the cleaner is not cleaned using the cleaner, that is, the cleaner is being stored or charged, the side brush assembly 160 is positioned at the first position. Accordingly, the side brush assembly 160 is positioned below the casing 110 so that the side brush assembly 160 is not exposed to the outside of the casing 110. In addition, since the side brush assembly 160 is positioned below the casing 110, the space required for storing the cleaner may be reduced. In addition, in particular, when the brush 152 is positioned below the casing 110, the brush 162 may be prevented from being damaged during the storage of the cleaner.

In addition, when the operation of the suction device is started, the operation of the first drive member 155 in the forward direction is started. Thus, the side brush assembly 160 moves from the first position to the second position. More specifically, when the operation of the suction device is started for cleaning, the forward operation of the first drive member 155 is started. Accordingly, the side brush assembly 160 is linearly moved from the first position by the first driving member 155 to be positioned at the second position.

When the side brush assembly 160 is positioned at the second position, the first switch 157 generates a signal for stopping the forward operation of the first driving member 155. Accordingly, the forward movement of the first driving member 155 is stopped, so that the side brush assembly 160 is maintained at the second position.

On the other hand, when the operation of the suction device is started, the operation of the second drive member 156 is started. Therefore, the brush 162 is rotated to move the foreign matter in the area corresponding to the outside of the suction port 111 downward of the suction port 111. And the foreign matter moved below the suction port 111 moved by the brush 162 is sucked by the suction device.

On the other hand, when the operation of the suction device is finished, the operation in the reverse direction of the first drive member 155 is started. Thus, the side brush assembly 160 moves from the second position to the first position. When the side brush assembly 160 is positioned at the first position, the reverse operation of the first driving member 155 is stopped by a signal generated from the second switch 158. In addition, when the operation in the reverse direction of the first driving member 155 is stopped, the operation of the second driving member 156 is stopped. Therefore, the rotation of the brush 162 is also stopped.

And the side brush assembly 160 is located in the first position, thereby preventing the side brush assembly 160, in particular the brush 162 from being exposed to the outside of the cleaner. Therefore, in the process of charging or storing the cleaner, the phenomenon in which the side brush assembly 150 is damaged may be prevented.

8 is a bottom view illustrating the operation of the side brush assembly of the automatic cleaner according to the fourth embodiment.

Referring to FIG. 8, the side brush assembly 170, that is, the movable member 171, according to the fourth embodiment of the present invention is installed to be linearly movable in both directions (left and right directions) of the casing 110. In other words, the side brush assembly 170, that is, the movable member 171 may linearly move in a direction parallel to the axis of rotation of the wheel constituting the moving device 140. In addition, other components constituting the side brush assembly 170, that is, the brush 172 including the hair 173, and the leg member 174 may be said to be the same as the first embodiment of the present invention. . In addition, the movement of the movable member 171 and the rotation of the brush 172, the first and second driving members 156 and 157 for controlling the operation of the first and second driving members 155 and The second switches 157 and 158 may also be configured in the same manner as the first embodiment of the present invention described above.

9 is a bottom view showing the operation of the side brush assembly of the automatic cleaner in the fifth embodiment.

Referring to FIG. 9, the side brush assembly 180, that is, the movable member 181 according to the fifth embodiment of the present invention is installed in the casing 110 so as to linearly move in a diagonal direction. In other words, the movable member 181 may linearly move in a direction crossing the rotation axis of the wheel constituting the moving device 140.

When the casing 110 is formed in a circular shape, cleaning of a portion located at an angle of about 45 degrees from the center of the casing 110 may not be smooth.

Since the corner in the cleaning area is located at an angle of approximately 45 degrees from the center of the casing 110, in this embodiment, the movable member 181 is at an angle of approximately 45 degrees relative to the axis of rotation of the wheels constituting the moving device 140 There is an advantage that can effectively clean the corner by moving in a straight line inclined state.

In addition, another component constituting the side brush assembly 180, that is, the brush 182 including the hair 183 can be said to be the same as the first embodiment of the present invention described above. In addition, the first and second driving members 156 and 157 for the movement of the movable member 181 and the rotation of the brush 182, and the first and second to regulate the operation of the first driving member 155 and The second switches 157 and 158 may also be configured in the same manner as the first embodiment of the present invention described above.

Claims

A casing having a suction port;

A suction device installed inside the casing and suctioning foreign substances through the suction port;

A moving device for moving the casing; And

A side brush assembly movably installed in the casing,

The side brush assembly includes a brush for moving the foreign matter in the area corresponding to the outside of the casing toward the suction port by a rotation operation,

The movement of the side brush assembly, the automatic axis of rotation of the brush can move in a horizontal direction.
The method of claim 1,

The side brush assembly further includes a movable member movably provided in the casing,

And the brush is rotatably installed on the movable member.
The method of claim 2,

When the movable member moves,

The upper and lower overlap areas of the movable member and the casing are variable.
The method of claim 2,

With the suction device stationary, the movable member is in the first position,

And when the suction device is activated, the movable member is movable to the second position.
The method of claim 4, wherein

And when the suction device is operated, the movable member remains stationary in the second position.
The method of claim 4, wherein

When the suction device is activated, the movable member moves between the first position and the second position.
The method of claim 2,

The movable member is movable automatic cleaner when the suction device is operated.
The method of claim 2,

The brush may be rotated when the suction device is operated,

The movable member is movable when the casing is close to the wall surface within a certain distance.
The method of claim 2,

A first driving member for generating a driving force for moving the movable member;

And a second driving member for generating a driving force for rotating the brush.
The method of claim 9,

The first driving member and the second driving member are provided in the casing.
The method of claim 9,

The first drive member is provided in the casing,

The second driving member is provided on the movable member and moves together with the movable member.
The method of claim 2,

The movable member is installed in the casing so as to be linearly movable.
The method of claim 2,

And the movable member is rotatably installed on the casing about a rotation axis.
The method of claim 2,

The side brush assembly is provided with a plurality,

An automatic cleaner of a plurality of side brush assemblies in which a movable member of a side brush assembly adjacent to a wall is moved.
A casing having a suction port;

A suction device provided in the casing and suctioning foreign substances through the suction port;

A moving device for moving the casing;

A main brush for removing the foreign matter by contacting the foreign matter through the suction port;

A main driving member providing a driving force for rotating the main brush;

A movable member movably installed in the casing;

A first driving member providing a driving force for the movement of the movable member; And

And a brush rotatably installed on the movable member to move the foreign matter toward the suction port.
The method of claim 15,

The movable member is in a first position with the suction device stopped,

An automatic cleaner that is movable to the second position when the suction device is operated.
The method of claim 16,

Further comprising a second drive member for driving the brush,

And the second drive member is operated when the suction device is operated.
The method of claim 16,

A first sensing unit for sensing a first position of the movable member;

And a second sensing unit for sensing a second position of the movable member.
The method of claim 15,

And the first drive member operates when the casing is positioned adjacent to a wall surface.
The method of claim 15,

When the first drive member is operated, the vertical overlap area of the movable member and the casing is variable.