Cleaner

Abstract

A vacuum cleaner is disclosed. A vacuum cleaner according to an embodiment of the present invention includes a brush and a removal member positioned adjacent to the brush. The brush rotates to collect debris, such as hair, located on a floor surface. The collected debris, such as hair, can be pushed by the removal member and separated from the brush. The debris, such as hair, separated from the brush can pass through a nozzle housing and be collected in a dust bin. Therefore, debris such as hair attached to the brush can be easily separated and collected without a separate removal process. Accordingly, user convenience can be improved.

Description

Technology Field

[0001] The present invention relates to a vacuum cleaner, and more specifically, to a vacuum cleaner having a structure capable of effectively capturing materials that adhere easily but are not easy to separate, such as hair or fibers. Background Technology

[0002] A vacuum cleaner refers to a device capable of performing cleaning tasks through manual operation by the user or self-driving. Cleaning with a vacuum cleaner is widely used because it enhances cleaning effectiveness and user convenience compared to using traditional cleaning tools such as brooms or mops.

[0003] Vacuum cleaners can be used both indoors and outdoors. However, due to issues such as power supply and hygiene, they are generally used indoors rather than outdoors.

[0004] Vacuum cleaners can be classified into manual vacuum cleaners, which are grasped and operated directly by the user, and robotic vacuum cleaners, which drive themselves and perform cleaning tasks autonomously.

[0005] In the case of manual vacuum cleaners, the user moves the cleaner directly to perform cleaning tasks. Therefore, one of the characteristics of manual vacuum cleaners is their lightness and mobility.

[0006] In the case of automatic robot vacuum cleaners, lightweightness and mobility are also characteristics aimed at minimizing the power required for self-driving.

[0007] Lightweightness depends not only on the material from which the vacuum cleaner is manufactured but also on its size and volume. In this case, if the vacuum cleaner is excessively miniaturized to accommodate lightweightness, it becomes difficult to provide a dustbin with sufficient capacity to store the dust or debris collected during cleaning operations.

[0008] Therefore, conventional vacuum cleaners are manufactured to maximize the amount of dust or debris they can accommodate while pursuing lightweight properties. In other words, there is a limit to the increase in the size and volume of a vacuum cleaner.

[0009] Meanwhile, as the number of household members decreases due to factors such as single-person households, the number of households raising companion animals is increasing. However, companion animals have more hair and shed more easily than humans. Compared to ordinary dust or small debris, companion animal hair is generally larger in volume, lighter, and longer in length.

[0010] When cleaning is performed in an environment where pets are kept, the debris collected by the vacuum cleaner includes pet hair and similar materials. Additionally, body hair shed from the user and cohabitants may also be included in the debris collected by the vacuum cleaner.

[0011] The aforementioned debris, such as hair, fiber strands, or pet fur, has the property of easily adhering to objects with rough surfaces due to electrostatic attraction. At the same time, the debris has the property of not easily separating from the surface of the adhered object.

[0012] Therefore, when the aforementioned debris adheres to the surface of fibrous objects such as carpets or rugs, it is difficult to separate it using a vacuum cleaner. Even if a vacuum cleaner collects the debris while driving over surfaces such as carpets or rugs, it is difficult to separate the debris from the robot vacuum cleaner.

[0013] Consequently, not only is the efficiency of the cleaning operation and user convenience reduced, but there is also a risk that the vacuum cleaner may malfunction or be damaged by the aforementioned debris adhering to it.

[0014] Japanese Patent Publication No. 2009-0207646 discloses a manual cleaning device. Specifically, it discloses a manual cleaning device comprising a dust collector that is operated by a user and rotates in one direction to collect dust, and a plurality of brushes that push out and remove dust attached to the outer circumference of the dust collector. Here, a manual cleaning device refers to a cleaning device that operates solely by the force applied by a user without using a separate power source.

[0015] However, this type of manual cleaning tool operates in such a way that it collects dust only when rotated in one direction and removes the collected dust only when rotated in the opposite direction. In other words, the aforementioned prior art fails to provide a method for collecting dust and removing the collected dust regardless of the direction of rotation.

[0016] In addition, the aforementioned prior art has a limitation in that only the dust collector rotates, while the multiple brushes do not rotate separately; therefore, the collected dust is removed only when the dust collector moves toward the multiple brushes.

[0017] Furthermore, the dust collector of the aforementioned prior art can collect dust only when operated by applying force by a user. The prior art discloses only a mechanism for collecting already collected dust into a dust bin. In other words, the prior art does not provide a method for automatically collecting dust without external force from a user, or for removing dust sporadically adhered to the nozzle part.

[0018] Chinese Published Patent Document No. 109199228 discloses a dust collector. Specifically, it discloses a dust collector having a structure capable of removing hair and the like attached to a collected cylindrical brush by providing a hair device detachably coupled to a housing and a razor.

[0019] However, this type of dust collector can only function if a hair device and a laser are separately equipped and combined. In other words, depending on the usage conditions, there is the inconvenience of having to store and install the hair device and the laser separately.

[0020] Furthermore, the hair device and laser disclosed in the aforementioned prior art are coupled to a housing until they come into contact with a cylindrical brush. Therefore, there is a risk that the cylindrical brush itself may be damaged by the hair device or laser due to the user's lack of proficiency in operation or as use progresses.

[0021] U.S. Patent No. 9220386 discloses a robot vacuum cleaner. Specifically, it discloses a robot vacuum cleaner with a structure capable of collecting debris present on the ground using a plurality of rollers.

[0022] However, this type of robot vacuum cleaner has a limitation in that it requires a separate actuator to operate each roller. Consequently, there is a concern that not only will the power required to operate the robot vacuum increase, but the overall size of the robot vacuum will also increase.

[0023] Furthermore, the robot vacuum cleaner disclosed in the aforementioned prior art has a structure that applies upward thrust to debris trapped between the brushes provided on each roller. Therefore, the purpose can only be achieved if the rollers are rotated at an accurate angle as intended.

[0024] In other words, there is a concern that the purpose may not be achieved depending on the environment in which the robot vacuum cleaner disclosed in the aforementioned prior art operates.

[0025] Korean Registered Patent Document No. 10-1981827 discloses a cleaning device for a vacuum cleaner nozzle. More specifically, it discloses a cleaning device for a vacuum cleaner nozzle comprising a socket for receiving a vacuum cleaner nozzle and a cleaning member disposed within the socket to remove articles entangled therein while a rotatable member rotates.

[0026] However, the cleaning device for the nozzle of this type of vacuum cleaner is placed inside the charging stand. Therefore, there is the inconvenience of having to operate the vacuum cleaner again after the user has finished using it and placed it on the charging stand.

[0027] Korean Published Patent Document No. 10-2020-0028580 discloses a pet comb capable of removing hair by suction and a vacuum cleaner including the same. Specifically, it discloses a pet comb comprising a roller comb portion provided inside a body case for combing the pet's hair and a rake portion for removing hair stuck in the roller comb portion, and a vacuum cleaner including the same.

[0028] However, this type of pet comb and vacuum cleaner containing it has a limitation in that, due to its intended use, it can only be applied to handheld type vacuum cleaners rather than robot vacuum cleaners or large vacuum cleaners.

[0029] In addition, since both the roller brush part and the rake part are equipped with a rake shape, there is also a limitation in that it is difficult to remove tangled hair, etc. from each rake. Prior art literature

[0030] Japanese Patent Publication No. 2009-207646 (September 17, 2009) Chinese Patent Publication No. 109199228 (January 15, 2019) U.S. Patent Publication No. 9220386 (December 29, 2015) Korean Registered Patent No. 10-1981827 (May 23, 2019) Korean Patent Publication No. 10-2020-0028580 (April 8, 2020) The problem to be solved

[0031] The present invention aims to provide a vacuum cleaner with a structure capable of solving the aforementioned problems.

[0032] First, the purpose is to provide a vacuum cleaner with a structure that can easily collect hair or fiber-shaped debris scattered indoors, etc.

[0033] In addition, the purpose is to provide a vacuum cleaner with a structure that can easily separate and collect collected hair or fiber-shaped waste.

[0034] In addition, the purpose is to provide a vacuum cleaner with a structure that can easily discharge collected hair or fiber-shaped waste.

[0035] In addition, one objective is to provide a vacuum cleaner with a structure capable of minimizing the number of components that provide power to the member for achieving the above purpose.

[0036] In addition, one objective is to provide a vacuum cleaner with a structure capable of simplifying the structure of the member for achieving the above purpose.

[0037] In addition, one objective is to provide a vacuum cleaner with a structure that can be miniaturized in size while achieving the above objectives.

[0038] In addition, while achieving the above objective, one objective is to provide a vacuum cleaner with a structure that can be applied to other types of vacuum cleaners. means of solving the problem

[0039] To achieve the above objective, the present invention provides a vacuum cleaner having the following structure.

[0040] First, the vacuum cleaner is equipped with a nozzle housing that communicates with an internal dustbin. The nozzle housing includes a frame forming the outer shape and a brush rotatably mounted on the frame.

[0041] The brush can be rotated clockwise or counterclockwise. A portion of the brush is partially exposed to the outside of the nozzle housing and comes into contact with debris, such as hair, located on the ground or floor surface.

[0042] An adhesive member is provided on the outer circumference of the brush. The adhesive member is formed of a material with high roughness and friction. As the brush rotates, debris such as hair located on the floor surface adheres to the adhesive member.

[0043] The nozzle section is equipped with a removal member. The removal member separates debris, such as hair, attached to the adhesive member from the adhesive member. The separated debris, such as hair, passes through the nozzle housing and flows into the dustbin of the vacuum cleaner.

[0044] In one embodiment, the removal member is positioned adjacent to the adhesive member. That is, the removal member may be in contact with the adhesive member or positioned apart by a small distance. The removal member separates debris, such as hair, attached to the adhesive member by applying pressure to it.

[0045] In one embodiment, the removal member is rotated. Specifically, the removal member may reciprocate by a predetermined distance along the outer circumference of the adhesive member. That is, the removal member is rotated clockwise and counterclockwise in the direction of the outer circumference of the adhesive member at the radially outer side of the adhesive member.

[0046] A member made of the same material as the adhesive member is provided on one side of the removal member facing the adhesive member, that is, on the inner surface of the extension. In other words, a member made of a material with high roughness and friction is provided on the inner surface of the removal member. The member may come into contact with the adhesive member or be spaced apart by a small distance. In either case, the member may come into contact with debris, such as hair, attached to the adhesive member.

[0047] The adhesive member may have directionality. That is, the adhesive member may be formed such that the slope following either the direction in which the brush rotates or the opposite direction is gentler than the slope following the other direction.

[0048] Likewise, the member provided on the inner surface of the removal member may also have a directionality. That is, the member may be formed such that the slope following either the direction in which the brush rotates or the direction opposite thereto is gentler than the slope following the other direction.

[0049] In various embodiments, the orientation of the adhesive member and the orientation of the member provided on the inner surface of the removal member can be combined in various ways.

[0050] The brush is rotated by a power unit. The power unit may be positioned at one or more of the axial ends in the direction in which the brush extends.

[0051] A main gear is connected to the brush. When the power unit is operated, the main gear can rotate together with the brush. In one embodiment, the main gear may be positioned to surround the outer circumference of the end of the brush.

[0052] The main gear is coupled with the sub-gear. When the main gear rotates, the sub-gear can also rotate. At this time, the rotational speed of the sub-gear can be adjusted to be faster by adjusting the gear ratio between the main gear and the sub-gear.

[0053] The sub-gear is connected to the link section. The link section links the sub-gear and the removal member. The rotation of the sub-gear is converted into the reciprocating motion of the removal member through the link section. At this time, the link section includes a main link linked to the removal member and sub-links linked to the main link and the sub-gear, respectively.

[0054] By adjusting the relative length relationship between the main link and the sub-link, the movement speed between the main gear, the sub-gear, and the removal member can be adjusted.

[0055] As described above, the sub-gear rotates faster than the main gear. Therefore, when the power unit is operated, the removal member can reciprocate at a faster speed than the brush.

[0056] That is, the brush and removal member can be rotated by a single power unit.

[0057] In one embodiment, the removal member is formed to partially cover the outer circumference of the brush. When viewed in the cross-sectional direction, the removal member may be formed in an arc shape that wraps around the outer circumference of the brush.

[0058] The removal member revolves along the outer circumference of the brush. The central axis of the removal member's revolvement may be coaxial with the rotation axis of the brush. In this case, the removal member revolves without rotation. That is, the inner surface of the removal member facing the brush remains constant.

[0059] As described above, the removal member is moved along the outer circumference of the brush for a predetermined distance in either a clockwise or counterclockwise direction, and then returns to the other direction. At this time, the removal member revolves on the remaining part of the brush, excluding the part exposed to the outside.

[0060] In other words, the removable component is not exposed to the outside of the nozzle housing. To put it differently, the removable component does not come into direct contact with the bottom surface.

[0061] The removal member revolves faster than the rotational speed of the brush. In other words, the time required for the removal member to rotate by a certain angle is shorter than the time required for the brush to rotate by the same angle.

[0062] In one embodiment, the removal member may be coupled to the brush at multiple points. In the above embodiment, multiple main gears coupled to the brush may be provided and may be provided at each end in the direction in which the brush extends. Additionally, multiple sub-gears linked to the removal member may also be provided and may be gear-coupled with the main gears at each end in the direction in which the brush extends.

[0063] In the above embodiment, a link portion is also provided and linked to each of the multiple sub-gears. That is, the removal member is coupled to the brush by the multiple link portions. In this case as well, since the brush is rotated by a single power unit, the multiple main gears, sub-gears, and link portions can also be operated by a single power unit. Effects of the invention

[0064] According to an embodiment of the present invention, the following effects can be achieved.

[0065] First, a brush is provided in the nozzle portion. The brush extends in one direction, and an adhesive member formed of a material such as felt having high roughness is provided on its outer circumference. That is, the adhesive member constitutes the outer surface of the brush. The brush is partially exposed to the outside of the nozzle housing.

[0066] When the vacuum cleaner is operated, the adhesive member rolls along the floor surface to be cleaned. The adhesive member is formed from a material with high roughness and friction. Due to the characteristics of the material and shape of the adhesive member, debris such as hair remaining on the floor surface easily adheres to the adhesive member.

[0067] Therefore, debris such as hair present in the area where the vacuum cleaner travels can be easily collected.

[0068] Additionally, a removal member is provided in the nozzle portion. The removal member is positioned adjacent to the brush and revolves relative to the brush. On the inner surface of the removal member, which is the surface facing the brush, a member made of a material similar to the adhesive member surrounding the outer circumference of the brush is provided. The member may come into contact with the adhesive member or be spaced apart by a small distance, thereby pressurizing debris such as hair attached to the adhesive member.

[0069] At this time, the removal member rotates at a faster speed than the brush, and reciprocates a predetermined distance while alternately facing clockwise and counterclockwise directions. Therefore, even if the brush rotates in either the clockwise or counterclockwise direction, the removal member can effectively pressurize and remove debris, such as hair, attached to the adhesive member.

[0070] The removal member is formed to partially surround the outer circumference of the brush. At this time, the removal member may be positioned at a predetermined distance from the outer circumference of the brush. Debris, such as hair, attached to the outer circumference of the brush—that is, to the adhesive member—passes through the space created by the separation and is then pressurized by the removal member. Accordingly, the debris, such as hair attached to the adhesive member, can be dislodged into the internal space of the nozzle housing in which the brush is housed.

[0071] Therefore, collected debris such as hair can be easily collected inside the dustbin by passing through the internal space of the nozzle housing and body without any separate operation.

[0072] In one embodiment, the adhesive member may be formed such that the slope following either the clockwise or counterclockwise direction is gentler than the slope following the other direction. Similarly, the member provided on the inner surface of the removal member may also be formed such that the slope following either the clockwise or counterclockwise direction is gentler than the slope following the other direction.

[0073] That is, the direction in which the slopes of the member and the adhesive member provided on the inner surface of the removal member are formed gently may be the same direction or different directions. Accordingly, various combinations are possible depending on whether the vacuum cleaner moves forward or backward, the environment in which the vacuum cleaner is used, and the purpose of the cleaning operation.

[0074] As a result, debris such as hair remaining in the environment where the vacuum cleaner is used can be easily collected. In addition, the collected (i.e., adhered) debris, such as hair, can be easily separated from the brush and fed into the dustbin.

[0075] Additionally, the dustbin is detachably attached to the body. The internal space of the dustbin is connected to the internal space of the body. Through the process described above, debris such as hair scattered on the floor surface is collected and then moved to and received in the dustbin.

[0076] Therefore, the user can easily dispose of collected waste, such as hair, by detaching only the dustbin.

[0077] In addition, a single power unit is coupled to the brush. When the power unit is activated, the brush rotates in either a clockwise or counterclockwise direction.

[0078] The brush is equipped with a main gear. When the brush rotates, the main gear also rotates.

[0079] The main gear is geared with a sub-gear located radially outward of the brush. When the brush and the main gear rotate, the sub-gear also rotates.

[0080] The removal member is linked to the sub-gear by the link portion. When the sub-gear rotates, the removal member revolves and reciprocates on the radially outer side of the brush due to the link movement of the link portion.

[0081] In other words, when a single power unit is activated, the brush and the main gear rotate together. Additionally, the sub-gear coupled with the main gear and the link section connected thereto also rotate. Due to the link movement of the link section, the removal member moves alternately in clockwise and counterclockwise directions and reciprocates.

[0082] Therefore, when the brush is rotated by a single power unit, the removal member can also be rotated by various combinations. Accordingly, the number of power sources required to rotate the brush and the removal member can be minimized.

[0083] Therefore, as the removal member and the brush are positioned adjacently, the space occupied by the removal member and the brush, respectively, can be minimized. Additionally, since the removal member and the brush are connected by a gear section and a link section, the space occupied by the member for connecting the removal member and the brush is also minimized.

[0084] Furthermore, the brush, removal member, gear section, and link section can all be operated by a single power unit.

[0085] Accordingly, the size of the total space occupied by the component for collecting debris such as hair and sending it to the dustbin for storage is reduced. As a result, the structure of the nozzle housing to which the nozzle part is attached and the vacuum cleaner to which the nozzle housing is attached becomes simpler, and the overall size of the vacuum cleaner can be reduced.

[0086] In addition, the nozzle housing that accommodates the nozzle part is detachably coupled to the body part. That is, the vacuum cleaner can perform normal cleaning operations by operating the body part without coupling the nozzle housing.

[0087] When debris such as hair accumulates in the area to be cleaned, the user can perform cleaning by attaching the nozzle housing to the body of the vacuum cleaner. Therefore, the nozzle part and nozzle housing can be equipped on the vacuum cleaner as needed, thereby improving user convenience and cleaning efficiency.

[0088] As the nozzle part and nozzle housing are detachably provided in the body part, the user can separate only the nozzle part and nozzle housing from the body part and attach them to the body part of another vacuum cleaner for use.

[0089] Therefore, the user can obtain the effect of the vacuum cleaner according to the embodiment of the present invention by separately providing the nozzle housing and the nozzle part, without purchasing a vacuum cleaner that includes both the nozzle housing and the nozzle part.

[0090] Accordingly, the versatility, user convenience, and economic efficiency of the nozzle part can be improved. Brief explanation of the drawing

[0091] FIG. 1 is a perspective view illustrating a vacuum cleaner according to an embodiment of the present invention. FIG. 2 is a perspective view illustrating a nozzle housing provided in the vacuum cleaner of FIG. 1. FIG. 3 is a perspective view illustrating a nozzle portion accommodated in the nozzle housing of FIG. 2. Figure 4 is a bottom view illustrating the nozzle portion of Figure 3. FIG. 5 is a perspective view illustrating a main brush and a removal member provided in the nozzle part of FIG. 3. FIG. 6 is a side view illustrating the main brush and removal member provided in the nozzle part of FIG. 3. FIGS. 7 to 10 are side views illustrating various embodiments of the orientation of the adhesive member and the member provided on the inner surface of the removal member provided in the nozzle part of FIG. 3. FIGS. 11 and FIGS. 12 are perspective views illustrating the operation process of the main brush and removal member provided in the nozzle part of FIG. 3. FIGS. 13 and FIGS. 14 are side views illustrating the operation process of the main brush and removal member provided in the nozzle part of FIG. 3. FIG. 15 is a conceptual diagram illustrating the process of collecting waste, such as hair, by a vacuum cleaner according to an embodiment of the present invention. FIG. 16 is a conceptual diagram illustrating the process of dust, such as hair, being pressurized and collected by a vacuum cleaner according to an embodiment of the present invention. Specific details for implementing the invention

[0092] Hereinafter, a nozzle part (60) according to an embodiment of the present invention and a vacuum cleaner (1) including the same will be described in detail with reference to the attached drawings.

[0093] In the following description, descriptions of some components may be omitted to clarify the features of the present invention.

[0094] 1. Definition of Terms

[0095] When it is stated that one component is "connected" or "joined" to another component, it should be understood that while it may be directly connected or joined to that other component, there may also be other components in between.

[0096] On the other hand, when it is stated that one component is "directly connected" or "directly coupled" to another component, it should be understood that there are no other components in between.

[0097] As used in this specification, singular expressions include plural expressions unless the context clearly indicates otherwise.

[0098] In the following description, the term "dust" refers to fine particles, dust, etc., present in the environment where the vacuum cleaner operates, such as indoors.

[0099] In the following description, the term "small trash" refers to trash that is larger than dust but small enough to be collected by a vacuum cleaner.

[0100] As used in the following description, the term "hair" refers to a fine, thread-like substance shed from animals, including humans. The said hair may be body hair shed from a human body, human hair, or body hair shed from an animal body.

[0101] The term "fiber" as used in the following description refers to any thin, thread-like material excluding the aforementioned hair. In one embodiment, the fiber may be material shed from clothing, bedding, furniture, and miscellaneous goods.

[0102] In the following description, hair and fiber will be collectively referred to as "hair (H), etc."

[0103] As used in the following description, the term "vacuum cleaner" refers to a device capable of performing cleaning tasks by manual operation by a user or by self-propelled movement.

[0104] The above vacuum cleaner may include a wired vacuum cleaner that receives power via a wire, a cordless vacuum cleaner that operates wirelessly via a battery, etc. Additionally, the above vacuum cleaner may include a robot vacuum cleaner that drives itself and performs cleaning tasks in a preset manner.

[0105] The terms "front side," "rear side," "left side," "right side," "upper side," and "lower side" used in the following description will be understood by referring to the coordinate system shown in FIG. 1.

[0106] 2. Description of the configuration of the vacuum cleaner (1) according to an embodiment of the present invention

[0107] Referring to FIGS. 1 and 2, a vacuum cleaner (1) according to an embodiment of the present invention includes a body part (10), a driving part (20), a dust bin (30), a sensor part (40), a nozzle housing (50), and a nozzle part (60).

[0108] Hereinafter, each configuration of the vacuum cleaner (1) according to an embodiment of the present invention will be described with reference to the attached drawings, wherein the nozzle part (60) will be described in a separate section.

[0109] (1) Description of the body part (10)

[0110] The body portion (10) forms the outer shape of the vacuum cleaner (1). The body portion (10) can accommodate components for the vacuum cleaner (1) to perform cleaning work in the space accommodated inside.

[0111] The body part (10) may collide with various obstacles provided in the area where the vacuum cleaner (1) travels, for example, indoors. Therefore, it is desirable for the body part (10) to be formed of a high-rigidity material to prevent damage caused by collision.

[0112] In addition, it is preferable that the body part (10) be formed of a lightweight material. This is to reduce the power required for the operation of the vacuum cleaner (1).

[0113] In one embodiment, the body portion (10) may be formed of a synthetic resin such as reinforced plastic.

[0114] A user interface may be provided on the exterior of the body part (10). The user can control the operation of the vacuum cleaner (1) by operating the user interface. In addition, the user interface may display information regarding the state of the vacuum cleaner (1) and the area where the vacuum cleaner (1) travels.

[0115] The internal space of the body part (10) can be connected to the outside. As the vacuum cleaner (1) travels, the collected air or small debris can pass through the internal space of the body part (10) and flow into a dust bin (30) that is detachably connected. Additionally, the air introduced along with the dust or small debris can be discharged to the outside of the body part (10).

[0116] Various sensors may be provided in the body portion (10). That is, in addition to the sensor portion (40) to be described later, the body portion (10) may be provided with a gyro sensor for detecting the inclination of the floor surface (G).

[0117] In the illustrated embodiment, the body portion (10) has a circular cross-section and is provided in the shape of a disc having a predetermined height in the vertical direction. Accordingly, when the vacuum cleaner (1) collides with various obstacles while driving, the body portion (10) can rotate and drive in various directions.

[0118] A nozzle housing (50) and a nozzle part (60) accommodated in the nozzle housing (50) are detachably coupled to the body part (10). The internal space of the nozzle housing (50) can be in communication with the internal space of the body part (10) and the dust bin (30).

[0119] Accordingly, waste (H), such as hair collected by the nozzle part (60), can be introduced into and collected in the dust bin (30) through the internal space of the body part (10).

[0120] A driving part (20) is rotatably coupled to the lower side of the body part (10).

[0121] The driving unit (20) provides power for the vacuum cleaner (1) to move. In addition, the driving unit (20) allows the vacuum cleaner (1) to rotate and change its driving direction.

[0122] The driving unit (20) is located on the lower side of the vacuum cleaner (1). The driving unit (20) is rotatably coupled to the lower side of the body unit (10).

[0123] The driving unit (20) may be provided in a form that can be rotated to move forward or backward. In the illustrated embodiment, the driving unit (20) is provided in the form of a wheel.

[0124] Multiple driving units (20) may be provided. In the illustrated embodiment, the driving units (20) are provided on the left and right sides, respectively, of the lower side of the body unit (10). The rotational speed and rotational direction of each driving unit (20) located on each side can be controlled independently of each other.

[0125] Accordingly, the vacuum cleaner (1) can move forward, backward, left, or right.

[0126] Although not shown, the driving unit (20) may be combined with a power device (not shown). The power device (not shown) may be provided in the form of a motor that receives an electrical signal and rotates the driving unit (20).

[0127] In one embodiment, the power device (not shown) may be provided in multiple units and each may be coupled to a plurality of driving units (20). Accordingly, the plurality of driving units (20) may be controlled independently of each other.

[0128] The dustbin (30) stores the waste collected while the vacuum cleaner (1) is running. In one embodiment, the dustbin (30) can accommodate waste (H), such as hair.

[0129] A predetermined space is formed inside the dust bin (30). The space is connected to the space formed inside the body part (10). Waste collected through the nozzle part (60) can pass through the space formed inside the body part (10) and enter the interior of the dust bin (30).

[0130] To this end, one or more of the space formed inside the body part (10), the dust bin (30), and the nozzle part (60) may be provided with a member (not shown) for applying a conveying force to the collected waste. In one embodiment, the member may be provided in the form of a cyclone.

[0131] The dust bin (30) is detachably coupled to the body part (10). The user can remove the dust bin (30) from the body part (10) to easily remove the waste contained inside the dust bin (30).

[0132] The dustbin (30) may be formed of a transparent material. This is to allow the user to visually perceive the amount of waste contained inside the dustbin (30) and easily determine when to dispose of the waste.

[0133] Alternatively, the dustbin (30) may be equipped with a sensor (not shown). In one embodiment, the sensor (not shown) may detect the mass or volume of waste contained in the internal space of the dustbin (30). The detected mass or volume is conveyed to the user in the form of visual information or auditory information, etc., so that the user can easily recognize when to dispose of waste.

[0134] The sensor unit (40) detects information about the path along which the vacuum cleaner (1) travels.

[0135] The sensor unit (40) may be positioned in the direction in which the vacuum cleaner (1) is scheduled to travel. In the illustrated embodiment, the sensor unit (40) is positioned on the front side of the body unit (10) to detect information about the environment on the front side of the vacuum cleaner (1).

[0136] The sensor unit (40) may be provided in any form capable of detecting information about the environment of the path along which the vacuum cleaner (1) travels or will travel. In the illustrated embodiment, the sensor unit (40) is provided as a camera capable of detecting image information.

[0137] Although not shown, the sensor unit (40) may further include an infrared sensor for detecting the distance to an obstacle, etc.

[0138] A nozzle housing (50) is detachably coupled to the lower side of the sensor part (40), that is, the lower side of the front of the body part (10).

[0139] The nozzle housing (50) accommodates the nozzle part (60). As the vacuum cleaner (1) travels, debris (H), particularly hair, collected by the nozzle part (60) can be introduced through the nozzle housing (50) into the space inside the body part (10) and the dust bin (30).

[0140] The nozzle housing (50) is located on the lower front side of the body part (10). When the driving part (20) rotates, the lower side of the nozzle housing (50) may come into contact with the bottom surface (G) or be separated by a predetermined distance and move together with the body part (10).

[0141] A space is formed inside the nozzle housing (50). A nozzle part (60) is accommodated in the space. As described below, the nozzle part (60) includes a frame (100), a brush (200) rotatably coupled to the frame (100), and a removal member (300). The brush (200) and the removal member (300) of the nozzle part (60) can be rotated within the internal space of the nozzle housing (50).

[0142] The nozzle housing (50) is detachably coupled to the body portion (10). When the nozzle housing (50) and the body portion (10) are coupled, the internal space of the nozzle housing (50) is connected to the internal space of the body portion (10). Accordingly, the internal space of the nozzle housing (50) can be connected to the dust bin (30).

[0143] The nozzle housing (50) is coupled with the body part (10) and moves together, and may have any shape capable of accommodating the nozzle part (60) inside. In the illustrated embodiment, the nozzle housing (50) is a polygonal prism shape that extends long in the left-right direction and protrudes upward at different angles of inclination in the front-rear direction.

[0144] The nozzle housing (50) may collide with various obstacles provided in the area where the vacuum cleaner (1) travels, for example, indoors. This is because the nozzle housing (50) is coupled to the body part (10) so that it is exposed on the outside of the body part (10). Therefore, it is preferable that the nozzle housing (50) be formed of a high-rigidity material to prevent damage caused by collision.

[0145] In addition, it is preferable that the nozzle housing (50) be formed of a lightweight material. This is to reduce the power required for the operation of the vacuum cleaner (1).

[0146] In one embodiment, the nozzle housing (50) may be formed of a synthetic resin such as reinforced plastic.

[0147] In the illustrated embodiment, the nozzle housing (50) includes an outer housing (51), an inner housing (52), and a connecting part (53).

[0148] The outer housing (51) forms the outer side of the nozzle housing (50). The outer housing (51) is exposed to the outside of the nozzle housing (50).

[0149] A predetermined space is formed inside the outer housing (51). The inner housing (52) and the nozzle part (60) accommodated inside the inner housing (52) are accommodated in the space. The space is in communication with the space formed inside the body part (10). The communication is achieved by the communication part (53).

[0150] An inner housing (52) is located inside the outer housing (51).

[0151] The inner housing (52) forms the inner side of the nozzle housing (50). The inner housing (52) is not exposed to the outside.

[0152] A space is formed inside the inner housing (52). A nozzle part (60) is accommodated in the space. The brush (200) and the removal member (300) of the nozzle part (60) can be rotated while accommodated in the inner housing (52).

[0153] A nozzle part (60) can be coupled to the inner housing (52). Specifically, a frame (100) of the nozzle part (60) can be coupled to the inner housing (52).

[0154] An opening is formed on one side of the inner housing (52), in the illustrated embodiment, on the lower side. A nozzle part (60) housed in the inner housing (52) can be exposed to the outside of the inner housing (52) through the opening. Accordingly, when the vacuum cleaner (1) travels, various types of debris located on the floor surface (G) can be collected by the nozzle part (60).

[0155] The space formed inside the inner housing (52) is connected to the connecting part (53). Various types of waste collected by the nozzle part (60) can pass through the connecting part (53) and flow into the internal space of the body part (10) and the dust bin (30).

[0156] The connecting part (53) connects the internal space of the outer housing (51) and the internal space of the inner housing (52) with the internal space of the body part (10).

[0157] The connecting portion (53) may be located in the outer housing (51). The connecting portion (53) is located on one side facing the body portion (10), and in the illustrated embodiment, on the upper side of the rear.

[0158] The connecting part (53) can be detachably coupled to the body part (10). By the above coupling, the nozzle housing (50) and the body part (10) can be detachably coupled.

[0159] 3. Description of the nozzle part (60) according to an embodiment of the present invention

[0160] Referring again to FIGS. 1 and FIGS. 2, a vacuum cleaner (1) according to an embodiment of the present invention includes a nozzle part (60).

[0161] The nozzle part (60) rotates as the vacuum cleaner (1) operates, collecting various types of waste located on the floor surface (G) of the area where the nozzle part (60) is exposed.

[0162] The nozzle part (60) can move together with the vacuum cleaner (1) as it moves. Accordingly, the nozzle part (60) can collect trash from various areas.

[0163] The nozzle part (60) is housed inside the nozzle housing (50) and can be exposed toward the floor surface (G). When the vacuum cleaner (1) travels, the nozzle part (60) travels in contact with the floor surface (G) or separated from it by a predetermined distance.

[0164] The nozzle part (60) can be rotated. Accordingly, various types of waste located on the bottom surface (G) can be collected by the nozzle part (60), pass through the nozzle housing (50), and be collected in the dust bin (30).

[0165] In this specification, the explanation is based on the premise that the nozzle part (60) rotates to collect waste (H), such as hair.

[0166] (1) Description of the components of the nozzle part (60)

[0167] Hereinafter, with reference to FIGS. 3 to 10, the components of the nozzle part (60) according to an embodiment of the present invention will be described in detail.

[0168] In the illustrated embodiment, the nozzle section (60) includes a frame (100), a brush (200), a removal member (300), a gear section (400), a link section (500), and a power section (600).

[0169] The frame (100) is the part where the nozzle part (60) is joined to the nozzle housing (50). Additionally, the frame (100) rotatably supports the brush (200) and the removal member (300).

[0170] The frame (100) can be formed from a lightweight yet high-rigidity material. In one embodiment, the frame (100) can be formed from a synthetic resin material such as reinforced plastic.

[0171] The frame (100) forms part of the outer shape of the nozzle part (60). In the illustrated embodiment, the frame (100) forms the lower, left, and right sides of the nozzle part (60).

[0172] In the illustrated embodiment, the frame (100) includes a lower frame (110), a side frame (120), and a support frame (130).

[0173] The lower frame (110) forms the lower side of the frame (100). The lower frame (110) partially surrounds the lower side of the brush (200).

[0174] The lower frame (110) can be formed in a shape corresponding to the shape of the brush (200). In the illustrated embodiment, the brush (200) is a cylindrical shape extending in the left-right direction, so the lower frame (110) can also be provided in a plate shape extending in the left-right direction.

[0175] An opening is formed inside the lower frame (110). The opening may be formed through the upper and lower parts of the lower frame (110). A portion of the brush (200), in the illustrated embodiment, a portion of the lower side, may be exposed to the lower side of the lower frame (110) through the opening. Accordingly, the brush (200) may be exposed to the outside of the nozzle housing (50).

[0176] At each end of both directions in which the lower frame (110) extends, in the illustrated embodiment, the left and right ends, respectively, a side frame (120) is positioned.

[0177] The side frame (120) forms each end in the longitudinal direction of the frame (100), in the left and right directions in the illustrated embodiment. The side frame (120) is connected to each end in the direction to which the brush (200) extends, in the illustrated embodiment, the left and right ends, respectively.

[0178] In any one of the side frames (120), the side frame (120) located on the right side in the illustrated embodiment, a through hole may be formed in the longitudinal direction. A power unit (600) for rotating the gear unit (400) may be connected through the through hole.

[0179] A brush (200) and a removal member (300) are rotatably coupled to the side frame (120). That is, the side frame (120) does not rotate independently of the rotation of the brush (200) and the removal member (300). The coupling can be achieved by coupling a support frame (130) with the side frame (120).

[0180] The side frame (120) can be formed in a shape corresponding to the shape of the internal space of the nozzle housing (50). In the illustrated embodiment, the side frame (120) is provided in a plate shape formed rounded so that the upper end is convex toward the upper side.

[0181] The support frame (130) rotatably connects the brush (200) to the side frame (120).

[0182] A plurality of support frames (130) may be provided. A plurality of support frames (130) may be combined with the brush (200) and each side frame (120) in the direction in which the brush (200) extends, in the left and right directions in the illustrated embodiment. The support frames (130) are positioned between the brush (200) and the side frames (120).

[0183] The support frame (130) can be attached to the brush (200). In the illustrated embodiment, the support frame (130) can be positioned at the left and right ends, respectively, in the direction in which the brush (200) extends.

[0184] A through hole is formed in the center of the support frame (130). A brush (200) and a power unit (600) can be connected by passing through the through hole. Accordingly, when the power unit (600) is operated, the brush (200) connected thereto rotates, but the support frame (130) does not rotate.

[0185] A detailed explanation of the above rotation process will be provided later.

[0186] The brush (200) rotates to collect various types of debris remaining on the bottom surface (G).

[0187] The brush (200) is rotatably coupled to the frame (100). Specifically, the brush (200) has both ends rotatably supported by a plurality of side frames (120). As described above, the coupling or support is achieved by a support frame (130).

[0188] The brush (200) is formed to extend in one direction. In the illustrated embodiment, the brush (200) is formed to extend in the left-right direction. It will be understood that the extension direction is the same as the extension direction of the nozzle housing (50).

[0189] Therefore, when the vacuum cleaner (1) advances, the area swept by the brush (200) can be increased. Accordingly, the cleaning efficiency of the vacuum cleaner (1) can be improved.

[0190] The brush (200) may be any shape that can be rotated between the side frames (120). In the illustrated embodiment, the brush (200) is a cylindrical shape with a circular cross-section and extending in the left-right direction.

[0191] In the above embodiment, even if the brush (200) rotates, the distance between the center and the outer circumference of the cross-section of the brush (200) can be maintained at a constant level, so that an efficient cleaning operation can be performed.

[0192] A support frame (130) is rotatably coupled to each end of the direction in which the brush (200) extends, in the illustrated embodiment, the left and right ends, respectively. As described above, the support frame (130) is fixedly coupled to the side frame (120) to rotatably support the brush (200).

[0193] A support bar (430) of a removal member (300) and a gear part (400) is positioned adjacent to the outer circumference of the brush (200). The brush (200) can be rotated relative to the removal member (300). Accordingly, debris (H), such as hair collected by the brush (200), can be separated, and a detailed explanation thereof will be provided later.

[0194] A main gear (410) is positioned on the outer circumference of each end in the direction in which the brush (200) extends, specifically on the outer circumference of the left and right ends in the illustrated embodiment. The main gear (410) is geared with a sub-gear (420) positioned adjacent to the outer circumference of the brush (200).

[0195] Accordingly, when the power unit (600) is operated and the brush (200) is rotated, the main gear (410), the sub gear (420), and the link unit (500) connected thereto are rotated. As a result, the brush (200) and the removal member (300) can be operated by a single power unit (600).

[0196] The brush (200) can be formed from a lightweight yet high-rigidity material. In one embodiment, the brush (200) can be formed from a synthetic resin material such as reinforced plastic.

[0197] An adhesive member (210) is provided on the outer circumference of the brush (200).

[0198] The adhesive member (210) forms the outer surface of the brush (200). In other words, the adhesive member (210) is provided on the brush (200) to surround the outer surface of the brush (200).

[0199] The adhesive member (210) may be formed of a material having a predetermined roughness. This is to easily collect debris (H), such as hair, that remains on the bottom surface (G) by means of friction and electrostatic attraction.

[0200] Additionally, the adhesive member (210) may be formed of a material having a predetermined adhesive force. This is to facilitate the collection of waste (H), such as hair, that remains on the bottom surface (G) by applying pressure and adhering it.

[0201] In one embodiment, the adhesive member (210) may be formed from a fibrous material such as felt, blend, linen, or bristle. Alternatively, the adhesive member (210) may be formed from a material such as rubber, latex, or acrylic.

[0202] At this time, it is preferable that the roughness of the surface in the direction in which the adhesive member (210) is exposed to the outside, which is radially outward with respect to the center of the brush (200) in the illustrated embodiment, is formed to be relatively higher.

[0203] As the brush (200) and the adhesive member (210) provided therewith are rotated, debris (H), such as hair, located on the bottom surface (G) can be adhered to the adhesive member (210). After the adhered debris (H) is rotated together with the brush (200) and the adhesive member (210), it can be separated by the removal member (300). A detailed explanation thereof will be provided later.

[0204] The removal member (300) separates debris (H), particularly hair, that is attached to the adhesive member (210) of the brush (200) from the adhesive member (210). The separated adhesive member (210) can be removed into the interior of the nozzle housing (50) and moved and collected into the dust bin (30) through the connecting part (53).

[0205] The removal member (300) is positioned adjacent to the brush (200). In the illustrated embodiment, the removal member (300) is positioned on the upper portion of the brush (200).

[0206] The removal member (300) may be formed in a shape corresponding to the shape of the outer circumference of the brush (200). In the illustrated embodiment, the brush (200) is cylindrical in shape with a circular cross-section, and the removal member (300) may be formed in an arc-shaped cross-section having a predetermined curvature.

[0207] The removal member (300) is located radially outward from the brush (200). In one embodiment, the center of the cross-section of the removal member (300) may be positioned to have the same center as the center of the cross-section of the brush (200).

[0208] The removal member (300) may extend in the same direction as the brush (200), in the left and right directions in the illustrated embodiment. The removal member (300) may have both ends of its extension direction, the left and right ends in the illustrated embodiment, connected to the support frame (130) and the link member (500), respectively.

[0209] The removal member (300) can be formed from a lightweight yet high-rigidity material. In one embodiment, the removal member (300) can be formed from a synthetic resin material such as reinforced plastic.

[0210] The removal member (300) can be rotated relative to the brush (200). That is, the brush (200) is rotated with the power unit (600) as the axis of rotation. The removal member (300) revolves radially outward from the brush (200) with the central axis of the brush (200) or the power unit (600) as the axis of rotation.

[0211] At this time, the removal member (300) may be rotated in the same direction as the rotation direction of the brush (200) or in a different direction. When the removal member (300) is rotated in the same direction as the rotation direction of the brush (200), debris (H), such as hair, attached to the adhesive member (210) may be removed.

[0212] Additionally, the orbital speed of the removal member (300) may be faster than the rotational speed of the brush (200). Accordingly, the removal member (300) can quickly remove debris (H), such as hair collected by the brush (200), from the radially outer side of the brush (200).

[0213] This difference in speed is achieved by the gear unit (400) to be described later.

[0214] In the illustrated embodiment, the removal member (300) includes an extension part (310), a coupling part (320), and a link connection part (330).

[0215] The extension (310) extends between a plurality of side frames (120). In the illustrated embodiment, the extension (310) is formed to extend in the left-right direction.

[0216] The extension (310) is located on the radially outer side of the brush (200). In other words, the extension (310) is located at a predetermined distance from the outer circumference of the brush (200). It is preferable that the predetermined distance be formed to be smaller than the diameter that debris (H), such as hair, has when it adheres to the adhesive member (210).

[0217] Accordingly, when the extension part (310) is rotated, the debris (H), such as hair attached to the adhesive member (210), can be pressed by the extension part (310) and detached from the adhesive member (210).

[0218] The extension (310) may be formed to partially cover the outer circumference of the brush (200). In the illustrated embodiment, the extension (310) is formed in the shape of an arc, the cross-section of which partially covers the outer circumference of the brush (200).

[0219] The curvature of the extension (310), that is, the curvature of the extension (310) with respect to the central axis of the brush (200), can be formed to be equal to the curvature of the outer circumference of the brush (200).

[0220] The extension part (310) includes an inner surface (311).

[0221] The inner surface (311) can be defined as the surface of the extension (310) facing the brush (200). Alternatively, the inner surface (311) can be defined as the surface of the extension (310) facing inward in a radial manner.

[0222] The inner surface (311) is formed to partially wrap the brush (200) or the adhesive member (210) provided on the brush (200) from the radial outer side. The inner surface (311) is formed to extend in the extension direction of the extension portion (310), in the left-right direction in the illustrated embodiment.

[0223] The inner surface (311) may be provided with a member made of a material such as an adhesive member (210) (see FIG. 6). The member may come into contact with and rub against the adhesive member (210). Additionally, the member may press and push out debris, such as hair (H), that is attached to the adhesive member (210).

[0224] That is, waste (H), such as hair, attached to the adhesive member (210) can be easily separated from the adhesive member (210) by contact and friction between the member provided inside the extension part (310) and the adhesive member (210) or waste such as hair (H).

[0225] In each direction in which the extension part (310) is extended, the left and right ends in the illustrated embodiment are each extended with a connecting part (320) and a link connecting part (330).

[0226] The connecting portion (320) is the part where the removal member (300) is rotatably connected to the brush (200). In other words, the connecting portion (320) is the part where the removal member (300) is rotatably connected to the side frame (120).

[0227] Even if the power unit (600) is operated by the coupling unit (320) and the brush (200) is rotated, the removal member (300) can rotate (i.e., revolve) with respect to the brush (200) independently of the rotation.

[0228] The connecting portion (320) is continuous with the extension portion (310). The connecting portion (320) is formed to extend from the extension portion (310) in a direction toward the radial inner side of the brush (200).

[0229] The connecting portion (320) is continuous with the link connecting portion (330). The link connecting portion (330) is located between the extension portion (310) and the connecting portion (320).

[0230] Multiple connecting parts (320) may be provided. Multiple connecting parts (320) may each be located at each end in the direction in which the extension part (310) extends. In the illustrated embodiment, two connecting parts (320) are provided and located at the left and right ends of the extension part (310), respectively.

[0231] A link connection part (330) is located between the connecting part (320) and the extension part (310).

[0232] The link connection part (330) is the part where the removal member (300) is joined to the link part (500). When the link part (500) performs a link movement, the link connection part (330) performs a link movement together with the link part (500).

[0233] Accordingly, the removal member (300) can be rotated clockwise or counterclockwise by a predetermined distance with respect to the center axis of the brush (200).

[0234] The link connection portion (330) may be formed such that the width of its cross-section is reduced in a direction toward the radial inner side. This is to prevent unnecessary interference from occurring during the process in which the removal member (300) is combined with the brush (200) and the power unit (600).

[0235] For the connection of the link connecting part (330) and the link part (500), a connecting member such as a pin member may be provided.

[0236] Referring again to FIGS. 7 to 10, the adhesive member (210) and the member provided on the inner surface of the removal member (300) provided in the nozzle part (60) according to an embodiment of the present invention may be arranged to have a predetermined directionality.

[0237] That is, in the embodiment illustrated in FIG. 7, the adhesive member (210) is formed such that the slope along the counterclockwise direction is gentler than the slope along the clockwise direction. The inner surface (311) of the removal member (300) facing the adhesive member (210) is also formed such that the slope along the counterclockwise direction is gentler than the slope along the clockwise direction.

[0238] In the embodiment illustrated in FIG. 8, the adhesive member (210) is formed such that the slope along the clockwise direction is gentler than the slope along the counterclockwise direction. On the other hand, the inner surface (311) of the removal member (300) facing the adhesive member (210) is formed such that the slope along the counterclockwise direction is gentler than the slope along the clockwise direction.

[0239] In the embodiment illustrated in FIG. 9, the adhesive member (210) is formed such that the slope along the counterclockwise direction is gentler than the slope along the clockwise direction. On the other hand, the inner surface (311) of the removal member (300) facing the adhesive member (210) is formed such that the slope along the clockwise direction is gentler than the slope along the counterclockwise direction.

[0240] In the embodiment illustrated in FIG. 10, the adhesive member (210) is formed such that the slope along the clockwise direction is gentler than the slope along the counterclockwise direction. The inner surface (311) of the removal member (300) facing the adhesive member (210) is also formed such that the slope along the clockwise direction is gentler than the slope along the counterclockwise direction.

[0241] That is, in the embodiment illustrated in FIGS. 7 and 10, the member and the adhesive member (210) provided on the inner surface (311) of the removal member (300) are formed to have the same orientation. Also, in the embodiment illustrated in FIGS. 8 and 9, the member and the adhesive member (210) provided on the inner surface (311) of the removal member (300) are formed to have different orientations.

[0242] The above directionality can be determined according to the environment in which the vacuum cleaner (1) is driven and what the user intends.

[0243] For example, in order for the brush (200) to adhere to debris such as hair (H), the slope along the direction of rotation may be formed to be steeper than the opposite direction.

[0244] That is, in the embodiment illustrated in FIGS. 7 and 9, the brush (200) can be rotated counterclockwise. Also, in the embodiment illustrated in FIGS. 8 and 10, the brush (200) can be rotated clockwise.

[0245] Therefore, debris such as hair (H) present on the bottom surface (G) is adhered by being swept away by the part of the adhesive member (210) that has a greater slope, so it can be adhered more effectively.

[0246] In addition, for the removal member (300) to effectively separate debris such as hair (H) attached to the brush (200), the slope along the direction of rotation may be formed to be steeper than the opposite direction.

[0247] That is, in the embodiment illustrated in FIGS. 7 and 8, when the removal member (300) is rotated counterclockwise, debris such as hair (H) attached to the adhesive member (210) can be separated more effectively.

[0248] Likewise, in the embodiment illustrated in FIGS. 9 and 10, when the removal member (300) is rotated clockwise, debris such as hair (H) attached to the adhesive member (210) can be separated more effectively.

[0249] That is, it will be understood that the orientation of the member and adhesive member (210) provided on the inner surface (311) of the removal member (300) may change depending on the environment in which the vacuum cleaner (1) is used and the direction in which it is driven.

[0250] Furthermore, the above directionality may also be changed depending on the structure of the vacuum cleaner (1), that is, the location of the part where the brush (200) is exposed to the outside, the direction in which debris such as hair (H) removed from the brush (200) flows into the dust bin (30) of the vacuum cleaner (1).

[0251] Meanwhile, as described above, the removal member (300) can reciprocate along the outer surface of the brush (200) for a predetermined distance in a clockwise or counterclockwise direction.

[0252] Therefore, it will be understood that even if the directionality of the adhesive member (210) and the directionality of the member provided on the inner surface (311) of the removal member (300) are changed, the effect of the vacuum cleaner (1) according to the embodiment of the present invention can always be achieved at a certain level or higher.

[0253] The gear unit (400) transmits the rotation of the power unit (600) to the removal member (300). Accordingly, the brush (200) and the removal member (300) can both be rotated by a single power unit (600). Additionally, the brush (200) and the removal member (300) can be rotated at different speeds by the gear unit (400).

[0254] The gear unit (400) is connected to the power unit (600). When the power unit (600) is operated, the gear unit (400) can be rotated.

[0255] The gear section (400) is connected to the link section (500). When the gear section (400) is rotated, the link section (500) and the removal member (300) connected to the link section (500) can be rotated.

[0256] A plurality of gear sections (400) may be provided. In the illustrated embodiment, the gear section (400) includes a main gear (410) provided on the brush (200), a sub-gear (420) located on the outer circumference of the brush (200) and adjacent to the main gear (410), and a support bar (430) connected to the sub-gear (420).

[0257] The main gear (410) is coupled with the brush (200). The main gear (410) can rotate together with the brush (200). In the illustrated embodiment, the main gear (410) is formed to protrude radially outward from the outer circumference of the brush (200). The main gear (410) can be formed to wrap around the outer circumference of the brush (200).

[0258] The main gear (410) can be provided in any form that can be gear-fitted with the sub-gear (420).

[0259] Multiple main gears (410) may be provided. Multiple main gears (410) may each be coupled to the brush (200) at different positions in the direction in which the brush (200) extends, and may rotate together with the brush (200).

[0260] In the illustrated embodiment, the main gear (410) includes a first main gear (411) located on the left and a second main gear (412) located on the right. The first main gear (411) is coupled to the left end of the brush (200). The second main gear (412) is coupled to the right end of the brush (200).

[0261] The main gear (410) may include a plurality of tooth parts. That is, the main gear (410) may include a plurality of concave parts and a plurality of convex parts that are alternately arranged along its outer circumference.

[0262] At this time, the number of multiple concave parts and multiple convex parts provided in the main gear (410) may be greater than the number of multiple concave parts and multiple convex parts provided in the sub gear (420).

[0263] Accordingly, when the power unit (600) is rotated, the main gear (410) rotates more slowly than the sub gear (420). That is, for a predetermined period of time, the number of rotations of the main gear (410) is less than the number of rotations of the sub gear (420).

[0264] Accordingly, when the power unit (600) rotates, the brush (200) connected to the main gear (410) rotates more slowly than the removal member (300) connected to the sub gear (420).

[0265] The sub-gear (420) is geared with the main gear (410). When the main gear (410) rotates, the sub-gear (420) geared with the main gear (410) also rotates. At this time, the sub-gear (420) rotates in the opposite direction to the rotation direction of the main gear (410).

[0266] In addition, as described above, the rotational speed of the sub-gear (420) is faster than the rotational speed of the main gear (410).

[0267] The sub-gear (420) can be provided in any form that can be geared with the main gear (410).

[0268] A plurality of sub-gears (420) may be provided. A plurality of sub-gears (420) may each be geared with a plurality of main gears (410) at different locations in the direction in which the brush (200) extends, radially outward from the brush (200).

[0269] In the illustrated embodiment, the sub-gear (420) includes a first sub-gear (421) located on the left and a second sub-gear (422) located on the right.

[0270] The first sub-gear (421) is positioned adjacent to the left end of the brush (200) and is geared with the first main gear (411). The second sub-gear (422) is positioned adjacent to the right end of the brush (200) and is geared with the second main gear (412).

[0271] The sub-gear (420) may include a plurality of tooth profiles. That is, the sub-gear (420) may include a plurality of concave portions and a plurality of convex portions arranged alternately along its outer circumference.

[0272] At this time, the number of multiple concave parts and multiple convex parts provided in the sub-gear (420) may be less than the number of multiple concave parts and multiple convex parts provided in the main gear (410).

[0273] In addition, as described above, the rotational speed of the sub-gear (420) is formed to be faster than the rotational speed of the main gear (410).

[0274] Multiple sub-gears (420) are each connected to a support bar (430).

[0275] The support bar (430) is coupled to each of the multiple sub-gears (420) to rotatably support the multiple sub-gears (420).

[0276] The support bar (430) is coupled to the first sub-gear (421) and the second sub-gear (422), respectively, and can rotate together with the first sub-gear (421) and the second sub-gear (422).

[0277] The support bar (430) extends in the direction in which the brush (200) extends, in the left-right direction in the illustrated embodiment. Each end of the support bar (430) in its extension direction is rotatably connected to each side frame (120).

[0278] Accordingly, the first sub-gear (421) and the second sub-gear (422) can be rotated stably.

[0279] The link portion (500) converts the rotational motion of the power portion (600) into translational motion. Accordingly, when the power portion (600) is operated, the removal member (300) can be translated and reciprocated in a clockwise or counterclockwise direction.

[0280] The link portion (500) is connected to the sub-gear (420) of the gear portion (400). When the gear portion (400) rotates, the link portion (500) can be linked.

[0281] The link portion (500) is connected to the removal member (300). The removal member (300) can be translated by the link movement of the link portion (500).

[0282] A plurality of link sections (500) may be provided. Each of the plurality of link sections (500) may be linked to a removal member (300) and a sub-gear (420) so as to be linkable. In the illustrated embodiment, the link section (500) includes a main link (510) coupled to the removal member (300) and a sub-link (520) coupled to the sub-gear (420).

[0283] The main link (510) links the removal member (300) and the sub link (520). The main link (510) is rotatably connected to the removal member (300) and the sub link (520), respectively.

[0284] The main link (510) is formed to extend in one direction, in the front-rear direction in the illustrated embodiment. One end of the direction in which the main link (510) extends, in the illustrated embodiment, the front end, is rotatably coupled to the link connection portion (330) of the removal member (300). The other end of the direction in which the main link (510) extends, in the illustrated embodiment, the rear end, is rotatably coupled to the sub-link (520).

[0285] The main link (510) can be rotatably coupled to the removal member (300) and the sub link (520), respectively, by means of a pin member.

[0286] A plurality of main links (510) may be provided. A plurality of main links (510) may be connected to a link connecting part (330) provided on each side in the longitudinal direction of the removal member (300) and to each sub-link (521, 522) located adjacent to each link connecting part (330).

[0287] In the illustrated embodiment, the main link (510) includes a first main link (511) provided on the left side and positioned adjacent to the first main gear (411), and a second main link (512) provided on the right side and positioned adjacent to the second main gear (412).

[0288] The sub-link (520) links the main link (510) and the sub-gear (420). The sub-link (520) is rotatably connected to the main link (510). Additionally, the sub-link (520) is rotatably connected together with the sub-gear (420).

[0289] That is, when the sub-link (520) rotates, the sub-gear (420) can also rotate. Accordingly, the rotation of the power unit (600) and the main gear (410) can be transmitted to the sub-gear (420) through the link unit (500).

[0290] The sub-link (520) can be combined with the support bar (430). The sub-link (520) and the support bar (430) can be rotated together.

[0291] Accordingly, when the brush (200) is rotated, the sub-link (520) can be rotated together with the sub-gear (420) and the support bar (430).

[0292] The sub-link (520) is formed to extend in one direction, in the up-and-down direction in the illustrated embodiment. At this time, the extension length of the sub-link (520) may be shorter than the extension length of the main link (510).

[0293] One end of the direction in which the sub-link (520) extends, the upper end in the illustrated embodiment, is rotatably coupled to the main link (510). The other end of the direction in which the sub-link (520) extends, the lower end in the illustrated embodiment, is coupled to the sub-gear (420).

[0294] The sub-link (520) and the main link (510) can be rotatably connected by a pin member. Additionally, the sub-link (520) can be connected to the sub-gear (420) and the support bar (430) by a fastening member (not shown).

[0295] A plurality of sub-links (520) may be provided. A plurality of sub-links (520) may be connected to a first and second sub-gear (421, 422) and a support bar (430) respectively provided on both sides in the longitudinal direction of the removal member (300).

[0296] In the illustrated embodiment, the sub-link (520) includes a first sub-link (521) provided on the left side and coupled with a first main link (511) and a first sub-gear (421), and a second sub-link (522) provided on the right side and coupled with a second main link (512) and a second sub-gear (422).

[0297] The power unit (600) generates power for the brush (200) and the removal member (300) to rotate. The power unit (600) is connected to the main gear (410) of the gear unit (400). The power unit (600) and the main gear (410) can rotate together.

[0298] The power unit (600) may be provided in any form such that its rotation, rotation direction, and rotation speed can be controlled by the input of an electrical signal. In one embodiment, the power unit (600) may be provided as an electric motor.

[0299] The power unit (600) is electrically connected to an external power source (not shown) and a control unit (not shown). Power for the power unit (600) to operate may be supplied from the power source (not shown). Additionally, a control signal for controlling whether the power unit (600) rotates, the direction of rotation, and the rotational speed may be applied from the control unit (not shown).

[0300] The power unit (600) is connected to the brush (200). When the power unit (600) is operated, the brush (200) can be rotated. Accordingly, the main gear (410) coupled to the brush (200) can also be rotated.

[0301] The power unit (600) may be positioned adjacent to either the first main gear (411) or the second main gear (412). In the illustrated embodiment, the power unit (600) is provided in a single unit and is positioned adjacent to the second main gear (412) located on the right.

[0302] The power unit (600) can be coupled to the side frame (120) of the frame (100). Accordingly, the power unit (600) can be stably supported.

[0303] A detailed description of the process in which the brush (200) and the removal member (300) rotate as the power unit (600) operates will be provided later.

[0304] (2) Explanation of the operation process of the nozzle part (60)

[0305] In another nozzle part (60) of the embodiment of the present invention, the brush (200) and the removal member (300) can be rotated by a single power unit (600) through the configuration described above.

[0306] Hereinafter, with reference to FIGS. 11 to 14, the operation process of the nozzle part (60) according to an embodiment of the present invention will be described in detail.

[0307] The power unit (600) is electrically connected to a power source (not shown) and a control unit (not shown) by means of a wire or other member. When power and control signals are applied to the power unit (600), the power unit (600) rotates.

[0308] The power unit (600) is coupled with the brush (200). Therefore, when the power unit (600) rotates, the brush (200) also rotates. At this time, a main gear (410) is coupled to each end of the direction in which the brush (200) extends, in the left and right directions in the illustrated embodiment. The main gear (410) also rotates together with the brush (200).

[0309] The main gear (410) is geared with an adjacent sub-gear (420). Therefore, when the main gear (410) rotates, the sub-gear (420) also rotates. At this time, it will be understood that the rotation directions of the main gear (410) and the sub-gear (420) are opposite to each other.

[0310] Accordingly, the link portion (500) connected to the sub-gear (420) is also rotated. Since the link portion (500) is linked to the removal member (300), the removal member (300) reciprocates due to the rotation of the link portion (500).

[0311] The removal member (300) is rotated alternately in the same direction and in a different direction as the rotation direction of the brush (200).

[0312] That is, in the embodiment shown in FIG. 13, the removal member (300) is rotated counterclockwise. Also, in the embodiment shown in FIG. 14, the removal member (300) is rotated clockwise.

[0313] As the operation of the power unit (600) continues, the removal member (300) repeats the rotation. Accordingly, debris (H), such as hair, attached to the adhesive member (210) of the brush (200) is pressed by the removal member (300) and can be removed from the brush (200).

[0314] 4. Description of the process in which waste (H), such as hair, is collected and separated by the nozzle part (60) and the vacuum cleaner (1) including the same according to an embodiment of the present invention.

[0315] The nozzle part (60) according to an embodiment of the present invention and the vacuum cleaner (1) including the same can effectively collect waste (H), such as hair, that remains in the environment in which it is driven.

[0316] In addition, the collected waste (H), such as hair, can be easily separated and received in the dustbin (30) without the user having to perform any separate work.

[0317] Hereinafter, with reference to FIG. 15, the process of collecting and separating waste (H), such as hair, by a nozzle part (60) and a vacuum cleaner (1) including the same according to an embodiment of the present invention will be described in detail.

[0318] Referring to FIG. 15 (a), a brush (200) and a removal member (300) of a nozzle part (60) provided in a vacuum cleaner (1) that travels along a floor surface (G) toward the left are shown. It will be understood that the removal member (300) rotates according to the operation of the power part (600), and rotates at a faster speed than the brush (200).

[0319] At this time, the brush (200) is rotated counterclockwise so that the vacuum cleaner (1) can be driven easily.

[0320] For ease of understanding, the removal member (300) is also depicted as rotating in a counterclockwise direction, which is the same direction as the rotation direction of the brush (200). However, as described above, since the orbital speed of the removal member (300) is faster than the rotational speed of the brush (200), it will be understood that the following description can be applied even if the removal member (300) rotates in the opposite direction to the brush (200).

[0321] Debris (H), such as hair, is located on the floor surface (G) before the vacuum cleaner (1) passes over it.

[0322] Referring to Fig. 15 (b), the state is illustrated in which the vacuum cleaner (1) is driven and debris (H), such as hair, present on the floor surface (G) is collected by the brush (200).

[0323] As described above, the brush (200) includes an adhesive member (210) that surrounds its outer circumference. The adhesive member (210) may be formed from a fiber material having high roughness, such as felt.

[0324] Debris (H), such as hair, attached to the adhesive member (210) moves in the same direction as the brush (200), that is, in a counterclockwise direction, as the brush (200) rotates. Accordingly, the debris (H), such as hair, passes the bottom surface (G) and moves to the rear side of the brush (200), that is, to the right in the illustrated embodiment.

[0325] Meanwhile, the removal member (300) is still moved in the same direction as the brush (200). As described above, the illustrated embodiment is for ease of understanding, and the removal member (300) may be moved in a different direction in the above state.

[0326] Referring to Fig. 15 (c), the state immediately before the removal member (300) presses the debris (H), such as hair, attached to the adhesive member (210) is illustrated.

[0327] In the above state, the brush (200) is still rotated in one direction, that is, counterclockwise. Therefore, the debris (H), such as hair, is moved further compared to the state shown in (b) of FIG. 15.

[0328] The removal member (300) is rotated in a direction opposite to the rotation direction of the brush (200), and in the illustrated embodiment, clockwise. That is, it is assumed that the removal member (300) is moved to the end in one direction in the state shown in FIG. 15 (b).

[0329] Referring to (d) of FIG. 15, a state is illustrated in which debris (H), such as hair, attached to the adhesive member (210) is removed by the removal member (300).

[0330] In the above state, the brush (200) continues to rotate in the same direction as the above-described direction, that is, in a counterclockwise direction. Additionally, the removal member (300) continues to rotate in the opposite direction to the brush (200), that is, in a clockwise direction.

[0331] Accordingly, debris (H), such as hair, attached to the adhesive member (210) is pressed by the removal member (300), which rotates in the opposite direction to the rotation direction of the brush (200), and is separated and detached from the adhesive member (210).

[0332] At this time, as the brush (200) rotates in the opposite direction to the rotation direction of the removal member (300), the amount of impact applied by the removal member (300) to the debris (H), such as hair, can be increased. Therefore, the debris (H), such as hair, can be separated more easily and effectively from the adhesive member (210).

[0333] Through the above process, debris (H), such as hair, is removed into the rear side of the brush (200), that is, into the internal space of the nozzle housing (50).

[0334] As described above, the internal space of the nozzle housing (50) is connected to the internal space of the body part (10) and the dust bin (30) through the connecting part (53). Additionally, at least one of the internal space of the body part (10), the dust bin (30), and the connecting part (53) is provided with a member (not shown) for sucking up debris (H), such as fallen hair.

[0335] Accordingly, debris (H), such as fallen hair, is collected in the dust bin (30) by passing through the internal space of the connecting part (53) and the body part (10).

[0336] As a result, the nozzle part (60) according to an embodiment of the present invention and the vacuum cleaner (1) including it can effectively collect waste (H), such as hair, which is difficult to easily remove from the floor surface (G).

[0337] In addition, collected debris (H), such as hair, can be easily separated from the brush (200) by the removal member (300) and received in the dust bin (30).

[0338] Furthermore, the above process can be achieved by rotating the brush (200) and the removal member (300) at different speeds by a single power unit (600).

[0339] Hereinafter, with reference to FIG. 16, the process of collecting and pressurizing waste (H), such as hair, by a nozzle part (60) and a vacuum cleaner (1) including the same according to an embodiment of the present invention will be described in detail.

[0340] Referring to FIG. 16 (a), a brush (200) and a removal member (300) of a nozzle part (60) provided in a vacuum cleaner (1) that travels along a floor surface (G) toward the left are shown. It will be understood that the removal member (300) rotates according to the operation of the power part (600), and rotates at a faster speed than the brush (200).

[0341] At this time, the brush (200) is rotated clockwise, and the removal member (300) is rotated counterclockwise. However, the illustrated embodiment is for ease of understanding, and the removal member (300) may be moved in a different direction from the above state.

[0342] As the vacuum cleaner (1) moves, debris (H), such as hair present on the floor surface (G), is collected by the brush (200).

[0343] The brush (200) includes an adhesive member (210) that surrounds its outer circumference. The adhesive member (210) may be formed from a fiber material having high roughness, such as felt.

[0344] Debris (H), such as hair, attached to the adhesive member (210) moves in the same direction as the brush (200), that is, clockwise, as the brush (200) rotates. Accordingly, the debris (H), such as hair, moves toward the removal member (300).

[0345] Referring to FIG. 16 (b), a state is illustrated in which debris (H), such as hair, has flowed into the space between the adhesive member (210) and the removal member (300).

[0346] In the above state, the brush (200) is still rotated in one direction, that is, clockwise. Therefore, the debris (H), such as hair, is moved further compared to the state shown in (a) of FIG. 16.

[0347] Referring to Fig. 16 (c), the state in which debris (H), such as hair, attached to the adhesive member (210) is pressed by the removal member (300) is illustrated.

[0348] In the above state, the brush (200) continues to rotate in one direction, that is, clockwise. However, the removal member (300) rotates in the same direction as the rotation of the brush (200), clockwise in the illustrated embodiment. That is, in the state illustrated in FIG. 16 (b), the removal member (300) moves counterclockwise to the end.

[0349] Accordingly, the waste (H), such as hair, is moved further compared to the state shown in (b) of FIG. 16. At the same time, the waste (H), such as hair, is pressed and collected by the removal member (300).

[0350] As described above, the members provided on the inner surfaces of the adhesive member (210) and the removal member (300) may be arranged to have a predetermined orientation. In the illustrated embodiment, the members provided on the inner surfaces of the adhesive member (210) and the removal member (300) are formed to have the same orientation.

[0351] However, the illustrated embodiment is intended to aid in understanding, and it will be understood that the orientation of the members provided on the inner surfaces of the adhesive member (210) and the removal member (300) may be formed in opposite directions.

[0352] Additionally, it will be understood that the direction and location where debris (H), such as hair, is collected may change depending on the orientation of the member provided on the inner surface of the adhesive member (210) and the removal member (300).

[0353] Referring to (d) of FIG. 16, a state is illustrated in which debris (H), such as aggregated hair, is removed by the suction member (not shown) of the vacuum cleaner (1).

[0354] As described above, the internal space of the nozzle housing (50) is connected to the internal space of the body part (10) and the dust bin (30) through the connecting part (53). Additionally, at least one of the internal space of the body part (10), the dust bin (30), and the connecting part (53) is provided with a member (not shown) for sucking up debris (H), such as fallen hair.

[0355] Debris (H), such as hair, accumulated on one side of the adhesive member (210) is separated and detached from the adhesive member (210) by the suction member (not shown) of the vacuum cleaner (1). At this time, since the debris (H), such as hair, is accumulated and its surface area and volume increase, it can be separated from the adhesive member (210) more easily and effectively.

[0356] Through the above process, debris (H), such as hair, falls into the rear side of the brush (200), that is, into the internal space of the nozzle housing (50). Accordingly, the fallen debris (H), such as hair, passes through the internal space of the connecting part (53) and the body part (10) and is collected in the dust bin (30).

[0357] As explained in FIG. 15, it will be understood that, as a result, the nozzle part (60) effectively collects waste (H), such as hair, which is difficult to easily remove from the bottom surface (G), and the collected waste (H), such as hair, can be easily separated from the brush (200) and received in the dust bin (30). Although the present invention has been described with reference to preferred embodiments, those skilled in the art will understand that various modifications and changes can be made to the present invention without departing from the spirit and scope of the invention as described in the following claims. Explanation of the symbols

[0358] 1: Vacuum cleaner 10: Body part 20: Driving unit 30: Dustbin 40: Sensor section 50: Nozzle housing 51: External housing 52: Internal housing 53: Connecting part 60: Nozzle part 100: Frame 110: Lower frame 120: Side frame 130: Support Frame 200: Brush 210: Adhesive member 300: Removal part 310: Extension part 311: Inner self 320: Joint 330: Link connection section 400: Gear section 410: Main Gear 411: 1st Main Gear 412: 2nd Main Gear 420: Sub Gear 421: 1st Sub-gear 422: 2nd Sub Gear 430: Support bar 500: Link section 510: Main Link 511: 1st Main Link 512: 2nd Main Link 520: Sub link 521: 1st sub-link 522: 2nd sub-link 600: Power unit H: Trash such as hair G: Bottom surface

Claims

Claim 1 A vacuum cleaner comprising: a frame; a brush rotatably coupled to the frame and extending in one direction; an adhesive member surrounding the outer circumference of the brush; a main gear coupled to the brush and rotating together with the brush; a sub-gear rotatably coupled to the frame and gear-fitting with the main gear; a link portion coupled to the sub-gear and a removal member, respectively; and a removal member extending in the direction of the rotation axis of the brush, positioned radially outward of the brush, and rotatably coupled to the frame relative to the brush, wherein the removal member rotates along the outer circumference of the brush. Claim 2 In claim 1, the removal member comprises: an extension portion extending along the direction of the rotation axis of the brush and radially wrapping the outer circumference of the brush from the outside; and a coupling portion located at each end in the direction in which the extension portion extends and rotatably coupled to the frame, wherein the removal member is a vacuum cleaner in which the extension portion rotates along the outer circumference of the brush. Claim 3 In paragraph 2, the extension is a vacuum cleaner positioned at a distance from the outer circumference of the brush. Claim 4 A vacuum cleaner comprising: a frame; a brush having an adhesive member that is rotatably coupled to the frame, extends in one direction, and surrounds the outer circumference thereof; and a removal member that extends in the direction of the rotation axis of the brush, is positioned radially outward of the brush, and is rotatably coupled to the frame relative to the brush, wherein the removal member comprises: an extension portion that extends along the direction of the rotation axis of the brush and surrounds the outer circumference of the brush radially outwardly; and a coupling portion that is positioned at each end in the direction in which the extension portion extends and is rotatably coupled to the frame, wherein the removal member is formed of a material having a predetermined roughness, and the surface of the extension portion facing the outer circumference of the brush is provided with a member of the same material as the adhesive member. Claim 5 A vacuum cleaner according to claim 1, wherein when the sub-gear is rotated, the link portion and the removal member move in a link motion. Claim 6 A vacuum cleaner according to claim 5, wherein the main gear comprises a first main gear located at one end of the one direction in which the brush extends; and a second main gear located at the other end of the one direction in which the brush extends, and the sub gear comprises a first sub gear that is gear-coupled with the first main gear; and a second sub gear that is gear-coupled with the second main gear. Claim 7 In paragraph 5, the above link portion comprises a main link rotatably coupled to the above removal member; and a sub link rotatably coupled to the main link and coupled to the sub gear to rotate together, a vacuum cleaner. Claim 8 A vacuum cleaner according to claim 5, wherein a plurality of convex and concave portions are alternately arranged along the outer circumference of each of the main gear and the sub gear, and the teeth of the main gear each include a greater number of convex and concave portions than the teeth of the sub gear, and the main gear rotates at a lower speed than the sub gear. Claim 9 A vacuum cleaner according to claim 5, comprising a power unit coupled to the brush and rotating the brush, wherein the power unit is provided in a single number and coupled to one of the ends of each end in the direction in which the brush extends. Claim 10 In claim 1, the removal member is a vacuum cleaner that reciprocates a predetermined distance along the outer circumference of the brush. Claim 11 A vacuum cleaner according to claim 10, wherein the debris attached to the adhesive member is moved in one direction along the outer circumference of the brush by the rotation of the brush, and the removal member is rotated in a direction different from the one direction in which the brush is rotated to press the attached debris and remove it from the adhesive member. Claim 12 A vacuum cleaner according to claim 11, comprising a dust bin that is connected to the frame and is detachably provided, wherein the removed debris flows into the dust bin. Claim 13 A vacuum cleaner comprising: a movable body portion; a nozzle housing detachably coupled to the body portion, the internal space of which communicates with the outside; and a nozzle portion rotatably received in the nozzle housing and partially exposed to the outside of the nozzle housing, wherein the nozzle portion comprises: a frame coupled to the nozzle housing; a brush rotatably coupled to the frame and extending in an axial direction; an adhesive member provided on the outer circumference of the brush; a main gear coupled to the brush and rotating together with the brush; a sub-gear rotatably coupled to the frame and gear-fitting with the main gear; a link portion coupled to the sub-gear and the removal member, respectively; and a removal member extending in the axial direction of the brush and rotatably coupled to the frame relative to the brush, wherein the removal member includes an extension portion extending along the axial direction of the brush and having a cross-section formed in an arc shape that partially covers the outer circumference of the brush. Claim 14 In paragraph 13, the extension of the removal member of the nozzle part covers a part of the outer circumference of the brush, a vacuum cleaner. Claim 15 A vacuum cleaner according to claim 13, wherein the central axis of the extension of the removal member of the nozzle part is coaxial with the rotation axis of the brush and is formed with the same curvature as the curvature of the outer circumference of the brush. Claim 16 In paragraph 13, the extension of the removal member of the nozzle part is positioned spaced apart from the outer circumference of the brush, a vacuum cleaner. Claim 17 In paragraph 13, the removal member of the nozzle portion comprises a connecting portion that is continuous with the end in the direction in which the extension portion extends and is rotatably coupled to the brush. Claim 18 A vacuum cleaner in which, in claim 17, the coupling portion of the nozzle portion is provided in a plurality of such portions, and the plurality of such coupling portions are each provided at each end in the direction in which the extension portion extends. Claim 19 A robot vacuum cleaner comprising: a drivable body portion; a nozzle housing detachably coupled to the body portion, the internal space of which communicates with the outside; and a nozzle portion rotatably received in the nozzle housing and partially exposed to the outside of the nozzle housing, wherein the nozzle portion comprises: a frame coupled to the nozzle housing; a brush rotatably coupled to the frame and extending in an axial direction; an adhesive member surrounding the outer circumference of the brush; a main gear coupled to the brush and rotating together with the brush; a sub-gear rotatably coupled to the frame and gear-fitting with the main gear; a link portion coupled to the sub-gear and a removal member, respectively; and a removal member extending in the axial direction of the brush, positioned radially outward of the brush, and rotatably coupled to the frame relative to the brush, wherein when the brush rotates, the removal member reciprocates by a predetermined distance in the direction of the outer circumference of the brush. Claim 20 delete Claim 21 A robot vacuum cleaner according to claim 19, wherein a plurality of convex and concave portions are alternately arranged along the outer circumference of each of the main gear and the sub gear, and the main gear and the sub gear are each provided with teeth, and the removal member rotates at a faster speed than the brush. Claim 22 A robot vacuum cleaner according to claim 19, wherein the brush of the nozzle part is rotated clockwise or counterclockwise, and the removal member is reciprocated clockwise or counterclockwise by a predetermined distance in the outer circumference of the brush. Claim 23 A vacuum cleaner comprising: a movable body portion; a nozzle housing detachably coupled to the body portion, the internal space of which communicates with the outside; and a nozzle portion rotatably received in the nozzle housing and partially exposed to the outside of the nozzle housing, wherein the nozzle portion comprises: a frame coupled to the nozzle housing; a brush rotatably coupled to the frame and extending in an axial direction; an adhesive member surrounding the outer circumference of the brush; a main gear coupled to the brush and rotating together with the brush; a sub-gear rotatably coupled to the frame and gear-fitting with the main gear; a link portion coupled to the sub-gear and a removal member, respectively; and a removal member extending in the axial direction of the brush, positioned radially outward of the brush, and link-coupled to the brush, wherein when the brush rotates, the removal member revolves along the outer circumference of the brush. Claim 24 delete Claim 25 In paragraph 23, the link portion of the nozzle portion comprises a main link connected to the removal member; and sub links connected to the main link and the sub gear, respectively, wherein the length of the main link is longer than the length of the sub link, a vacuum cleaner.

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