WO2023132453A1

WO2023132453A1 - Vacuum cleaner

Info

Publication number: WO2023132453A1
Application number: PCT/KR2022/017234
Authority: WO
Inventors: 최지원; 권기환; 김태광; 하동우
Original assignee: 삼성전자주식회사
Priority date: 2022-01-10
Filing date: 2022-11-04
Publication date: 2023-07-13
Also published as: KR20230108057A

Abstract

Provided is a vacuum cleaner. The vacuum cleaner comprises a vacuum main body, a suction head connected to the vacuum main body by a connecting pipe and provided with a suction hole for suctioning foreign substances, and a drum brush, which is a drum brush comprising a cylindrical brush body and which rotatably connects to the suction head, comprising: a plurality of brush units arranged radially so as to warp around the brush body along the circumferential direction thereof, and each comprising a brush forming at least a part of the circumferential surface of the drum brush; and flexible blades arranged between the plurality of brush units and extending radially from the brush body.

Description

vacuum cleaner

The present disclosure relates to a cleaner, and more particularly, to a cleaner including a drum brush.

In general, a vacuum cleaner is a device that cleans an area to be cleaned by sweeping or scattering foreign substances such as dust or hair existing in a cleaning space and sucking the foreign substances such as scattered dust or hair by a suction force.

The cleaner includes a cleaner body, a suction head connected to the cleaner body by a connecting pipe and having a suction port, and a drum brush rotatably mounted on the suction head.

The drum brush includes a brush body formed of hard metal or plastic and a brush having a predetermined length on an outer circumferential surface of the brush body.

When foreign substances such as dust or hair in the cleaning space are scattered by the rotation of the drum brush, the foreign substances such as scattered dust or hair are sucked into the suction port by the suction force generated inside the cleaner body, and the sucked foreign substances are sent to the dust collector. are moved

As the drum brush rotates, foreign substances such as hair, animal hair, and threads among foreign substances sucked through the suction port may be caught between the plurality of brushes.

One aspect of the present disclosure provides a cleaner having an improved structure to prevent foreign matter from entering the brush as the drum brush rotates.

Another aspect of the present disclosure provides a cleaner having an improved structure to improve suction efficiency by changing the flow of fluid sucked into the suction head.

A cleaner according to an example of the present disclosure includes a cleaner body, a suction head connected to the cleaner body by a connecting pipe, provided with a suction port to suck foreign substances, and a brush body having a cylindrical shape and rotatably coupled to the suction head A drum brush, a plurality of brush units including brushes arranged to surround the brush body along a circumferential direction of the brush body in a radial direction of the brush body and forming at least a part of an outer circumferential surface of the drum brush, and the brush body It extends in the radial direction of and may include a drum brush including elastic blades disposed between the plurality of brush units.

The plurality of brush units and the elastic blades may be disposed along a longitudinal direction of the drum brush and a circumferential direction of the drum brush.

The plurality of brush units and the elastic blades extend along the rotational direction of the drum brush from one end of the drum brush toward the central portion of the drum brush, and from the other end opposite to one end of the drum brush to the central portion of the drum brush. It may extend along the direction of rotation of the drum brush toward the drum brush.

The plurality of brush units and the elastic blades may be spaced apart from each other in a circumferential direction of the drum brush.

The plurality of elastic blades may be formed, and the plurality of brush units may be arranged to extend in a circumferential direction of the drum brush between the plurality of elastic blades.

The drum brush may include a brush base covering an outer circumferential surface of the brush body and disposed between the brush body and the plurality of brush units, and the elastic blades may be disposed on the brush base.

One end of the elastic blade may be fixed to the brush base and may extend from the brush base in a radial direction of the drum brush.

The drum brush may further include a base member disposed between the brush base and the brush body.

The drum brush may be formed so that a part of the outer circumferential surface protrudes in a radial direction of the drum brush by the base member.

The elastic blade may be disposed along a portion of an outer circumferential surface of the drum brush protruding in a radial direction of the drum brush.

The base member may be disposed along a longitudinal direction of the drum brush and a circumferential direction of the drum brush.

The base member may be disposed along one end of the brush base side of the elastic blade.

The base member may be configured to include an elastic material.

The plurality of brush units, the elastic blades, and the base member may be coupled to the brush base, respectively.

The elastic blades may be arranged to extend from one end toward the other end of the drum brush in the longitudinal direction along the plurality of brush units.

A cleaner according to another example of the present disclosure includes a cleaner body, a suction head communicating with the cleaner body, and a brush body rotatably coupled to the suction head inside the suction head and having a cylindrical shape, and an outer circumferential surface of the brush body. and a drum brush including a brush assembly covering, the brush assembly being disposed on a brush base, along a lengthwise direction of the brush body on the brush base, and extending along a circumferential direction of the brush base to form a surface of the drum brush. It may include a plurality of brush units forming at least a portion of an outer circumferential surface and including a brush, and an elastic blade extending from the brush base in a radial direction of the brush body and disposed between the plurality of brush units.

The brush assembly may be formed to include a hollow cylindrical shape.

The brush assembly may further include a base member disposed between the brush body and the brush base, and the base member may be provided such that at least a portion of an outer circumferential surface of the drum brush protrudes in a radial direction of the drum brush.

A cleaner according to another example of the present disclosure includes a cleaner body, a suction head connected to the cleaner body by a connecting pipe, a suction port provided to suck foreign substances, and rotatably coupled to the suction head, a brush body, a brush base, A plurality of brush units extending along the circumferential direction and longitudinal direction of the brush base to cover the outer surface of the brush base and disposed between the plurality of brush units and extending along the longitudinal direction of the brush base on the outer surface of the brush base and an elastic blade, wherein the elastic blade and the plurality of brush units are each coupled to the brush base to cover an outer surface of the brush body.

The drum brush may further include a base member coupled to an inner surface of the brush base facing an outer surface of the brush body.

According to the present disclosure, the drum brush includes elastic blades to prevent foreign substances from being wound while entering the brush when the drum brush rotates.

According to the present disclosure, the drum brush has a shape protruding from the outer surface of the drum brush by the base member, and as the drum brush rotates, the flow of the sucked fluid can be changed.

1 is a perspective view illustrating a cleaner according to an embodiment of the present disclosure.

FIG. 2 is an exploded view illustrating some components of the vacuum cleaner of FIG. 1 .

FIG. 3 is a view showing some configurations of the cleaner shown in FIG. 2 from another direction.

4 is a perspective view illustrating a suction head of a cleaner according to an embodiment of the present disclosure.

FIG. 5 is a view showing an exploded view of the suction head of FIG. 4 .

FIG. 6 is a view showing a state in which the suction head of FIG. 4 is cut along line XX'.

7 is a view showing a state in which the drum brush of FIG. 4 is separated from the suction head.

8 is a view showing a disassembled state of a brush assembly and a brush body in a drum brush according to an embodiment of the present disclosure.

9 is a view showing a state of a brush assembly of the drum brush of FIG. 8 viewed from one direction.

10 is a cross-sectional side view of a brush assembly of the drum brush of FIG. 8 .

FIG. 11 is a view showing a state in which long foreign substances are wound around the brush assembly of FIG. 8 .

12 is a view showing a state in which a suction head sucks foreign substances according to an embodiment of the present disclosure.

13 is a diagram illustrating a state in which a drum brush rotates according to an embodiment of the present disclosure.

14 is a diagram illustrating a process of coupling a plurality of brush units and elastic blades to a brush base in the process of manufacturing a brush assembly according to an embodiment of the present disclosure.

15 is a view illustrating a process of coupling a base member to a brush base in a process of manufacturing a brush assembly according to an embodiment of the present disclosure.

16 is a view showing a brush assembly manufactured according to the process of FIGS. 14 and 15 .

FIG. 17 is a view showing how the brush assembly of FIG. 16 is coupled to a brush body.

18 is a view showing manufacturing a brush assembly of a drum brush according to another embodiment of the present disclosure.

19 is a view showing a drum brush including a brush assembly manufactured according to FIG. 18;

The embodiments described in this specification and the configurations shown in the drawings are only one preferred example of the disclosed invention, and there may be various modifications that can replace the embodiments and drawings in this specification at the time of filing of the present application.

In addition, the same reference numerals or numerals presented in each drawing in this specification indicate parts or components that perform substantially the same function.

In addition, terms used in this specification are used to describe embodiments, and are not intended to limit and/or limit the disclosed invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as "include" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It does not preclude in advance the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

In addition, terms including ordinal numbers such as “first” and “second” used herein may be used to describe various components, but the components are not limited by the terms, and the terms It is used only for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention. The term "and/or" includes any combination of a plurality of related listed items or any of a plurality of related listed items.

Meanwhile, the terms "front", "rear", "front", "rear", "top", "bottom", "top", "bottom", "left" and "right" used in the following description It is defined based on the drawings, and the shape and position of each component are not limited by this term. For example, in the following description, front refers to a direction toward the front with respect to the cleaner body, top refers to an upper direction with respect to the cleaner body, and bottom refers to a downward direction with respect to the cleaner body.

In addition, although a stick-type vacuum cleaner, which is a kind of cleaner, will be described as an example for convenience of description, the configuration of the present disclosure is not limited to the type of cleaner. For example, the configuration of the present disclosure may be applied to various types of cleaners such as canister-type cleaners and robot cleaners.

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

In FIGS. 1 to 10 and 12 to 19, the brushes constituting the following

brush units

1220 and 2220 are shown as being integrally formed, but this is a unit in which a plurality of brushes are assembled. It is only shown for convenience to describe the in-

brush units

1220 and 2220 . A brush corresponding to the configuration of the present disclosure and

brush units

1220 and 2220 including the same may be provided as shown in FIG. 11 .

1 is a perspective view of a cleaner according to an embodiment of the present disclosure; FIG. 2 is an exploded view illustrating some components of the vacuum cleaner of FIG. 1 . FIG. 3 is a view showing some configurations of the cleaner shown in FIG. 2 from another direction.

1 to 3, the cleaner 1 includes a cleaner body 10, a suction head 100 connected to the cleaner body 10 by a connection pipe 20, and a suction head 100. It may include a drum brush 1000 rotatably coupled.

The cleaner body 10 may include a dust collector 40 detachably coupled to the cleaner body 10 and a suction motor (not shown) provided to generate a suction force. The suction motor may be disposed inside the motor housing 60 .

The dust collector 40 may be disposed upstream of the air flow rather than the suction motor to separate and store dust or foreign substances included in the air flowing into the inlet 43 . The dust collector 40 includes a dust separator (not shown) configured to separate dust or foreign substances included in the air introduced through the suction port 101a (see FIG. 5) of the suction head 100, and a dust separator. A dust collecting container 42 provided to store separated dust or foreign substances may be included.

As shown in FIGS. 1 to 3 , the dust collector 40 may be detachably coupled to the cleaner body 10 . The dust collector 40 may include a button 41 , and the button 41 may be formed such that the dust collector 40 is separated from the cleaner body 10 or coupled to the cleaner body 10 .

The dust collection container 42 may include an inlet 43 provided to introduce air sucked into the inlet 101a of the suction head 100 . The dust collection container 42 may include a protrusion housing 44 and a sliding protrusion 45 provided to be slidably coupled to or fitted to the cleaner body 10 .

The cleaner body 10 may include a handle 11 so that a user can hold and operate the cleaner. A user may hold the handle 11 and move the cleaner in a forward and backward direction.

The cleaner body 10 may include a control unit 12 . The user can turn on/off the cleaner or adjust the suction strength by manipulating a power button provided on the control unit 12 .

The cleaner body 10 may include a battery 13 . The battery 13 may be detachably coupled to the cleaner body 10 . When the battery 13 is discharged, the operation time of the vacuum cleaner can be increased by replacing the battery 13 with a pre-charged battery 13 . Alternatively, the battery 13 may be integrally provided with the cleaner body 10 .

The cleaner body 10 may include a filter housing 15 . The filter housing 15 is provided in a substantially donut shape and may accommodate a filter (not shown) therein. The type of filter is not limited, but as an example, a HEPA filter may be disposed in the filter housing 15 . A filter (not shown) may filter ultrafine dust that is not filtered by the dust separator of the dust collector 40 . The filter housing 15 may include a plurality of holes 16 through which air passing through the filter is discharged to the outside of the cleaner.

The cleaner body 10 may include a dust collector coupling part 17 provided to couple the dust collector 40 to the cleaner body 10 .

The cleaner body 10 may include a connection pipe coupler 14 . The connection pipe coupler 14 may be provided to separate the connection pipe 20 from the cleaner body 10 or couple it to the cleaner body 10 .

The connection pipe 20 may include a pipe having a predetermined rigidity or a flexible hose. The connection pipe 20 transfers the suction force generated by the suction motor of the cleaner body 10 to the suction head 100 and guides air and foreign matter sucked through the suction head 100 to the cleaner body 10. can

The suction head 100 may be connected to the cleaner body 10 through a connection pipe 20 . The suction head 100 may be rotatably coupled to the connection pipe 20 .

The drum brush 1000 may be rotatably coupled to the suction head 100 . The drum brush 1000 may be provided to contact the surface to be cleaned and to suck foreign substances such as dust existing on the surface to be cleaned into the suction head 100 . Specifically, as the drum brush 1000 rotates, foreign substances on the surface to be cleaned may be sucked into the suction head 100 through the suction port 101a of the suction head 100 . The foreign substances sucked into the suction head 100 are sucked into the connecting pipe 20 by the suction motor of the cleaner body 10 through the communication hole 101b that communicates the connecting pipe 20 and the suction head 100. and may move toward the cleaner body 10.

4 is a perspective view illustrating a suction head of a cleaner according to an embodiment of the present disclosure. FIG. 5 is a view showing an exploded view of the suction head of FIG. 4 . FIG. 6 is a view showing a state in which the suction head of FIG. 4 is cut along line XX'. 7 is a view showing a state in which the drum brush of FIG. 4 is separated from the suction head.

4 to 7, the suction head 100 may include a housing 102 having a suction port 101a and a suction connector 70 connecting the housing 102 and the connection pipe 20. . Inside the suction head 100, a drum brush 1000 rotatably provided on the suction head 100 may be disposed so that foreign substances are effectively sucked into the housing 102 through the suction port 101a.

The housing 102 of the suction head 100 may be formed by assembling the upper housing 110, the lower housing 120, and the side housings 130 and 650. Specifically, the side housings 130 and 650 may include covers on both sides of the connector side housing 130 and the detachable drum cover 140 .

The connector side housing 130 may be formed in a coupled state to the left side of the lower housing 120 . In this case, the drum detachable cover 140 may be coupled to the right side of the drum brush 1000 and disposed on the right side of the lower housing 120 . However, it is not limited thereto, and the left and right arrangements of the connector side housing 130 and the detachable drum cover 140 may be reversed.

The suction head 100 may include a connector 200 provided to supply power to the motor module 500 . The connector 200 may be coupled to the motor module 500 and supply power to the motor module 500 to drive the motor M in the motor module 500 . The connector 200 may be fixed to the connector side housing 130 . A wire (not shown) for supplying power is connected from the battery 13 and goes through the cleaner body 10, the connector 20, the suction connector 70, the lower housing 120, and the connector side housing 130 in this order. It can be extended out and finally electrically connected to the connector 200. However, it is not limited thereto, and the connector 200 may be arranged in various ways as long as power can be supplied to the motor module 500 . For example, unlike those shown in FIGS. 5 and 6 , if the motor module 500 is not disposed inside the brush body 1100 but is disposed at a different location inside the suction head 100, the connector 200 ) The arrangement of may be different from that shown in FIGS. 5 to 6. In addition, the relationship in which the connector 200 and the battery 13 are connected by wires may also be different from the above description.

The suction head 100 may include a socket 300 provided to surround the connector 200 . The socket 300 covers the outer surface of the connector 200 and can be detachably coupled to the connector 200 . A method in which the socket 300 is coupled to the connector 200 may be provided in a screw-type fastening method or a hook-type fastening method, but is not limited thereto. The socket 300 may be provided so that the connector 200 and the motor module 500 are stably coupled to each other.

The suction head 100 may include a bearing 400 . The bearing 400 may be formed so that the socket 300 is seated therein. In other words, the bearing 400 may cover at least a portion of the outer surface of the socket 300 . The bearing 400 may be provided to support the inner circumferential surface of the brush body 1100 of the drum brush 1000.

The suction head 100 may include a motor module 500 that supplies a driving force to the drum brush 1000 by including a motor M. The motor module 500 may be coupled to the drum brush 1000, and specifically, the motor module 500 is coupled to the brush body 1100 to supply a driving force to the brush body 1100, and finally the drum brush 1000. ) may be rotatably provided.

The motor module 500 may be provided inside the drum brush 1000. Specifically, the brush body 1100 of the drum brush 1000 is formed to have a hollow cylindrical shape, and the motor module 500 may be disposed inside the brush body 1100. However, it is not limited thereto, and the motor module 500 may be arranged in various ways as long as it can transmit driving force to the drum brush 1000. For example, the motor module 500 may be disposed at the rear or side of the drum brush 1000 in the suction head 100, and in this case, it is connected to the drum brush 1000 by a separate connecting member (not shown). It is possible to transmit the driving force to the drum brush (1000).

The motor module 500 may be coupled to the connector 200 to receive power from the battery 13 . The motor module 500 may be detachably coupled to the connector 200 . The motor module 500 may include a plug 510 electrically connected to the connector 200 , and the plug 510 may receive power from the battery 13 through the connector 200 .

The motor module 500 may be provided in a substantially bottle shape. Specifically, the motor case 520 of the motor module 500 provided to surround and protect other components of the motor module 500 may be provided in a substantially bottle shape. In other words, the motor case 520 may be formed to have a shape including a cylindrical body provided with a predetermined diameter and a neck connected to the body and provided with a diameter smaller than the diameter of the body. Inside the motor case 520, each component of the motor module 500 provided to generate driving force necessary for the drum brush 1000 to rotate or to transmit driving force to the drum brush 1000 may be disposed, The motor case 520 may protect each component of the motor module 500 .

The plug 510 of the motor module 500 may be formed at one end of the connector 200 side of the motor module 500 . The plug 510 may be provided in a region of the neck shape of the bottle shape of the motor module 500 .

A drum drive shaft 530 may be disposed at the other end of the motor module 500 opposite to one end at which the plug 510 is disposed. The plug 510 and the drum drive shaft 530 may be arranged side by side in the rotation axis direction of the brush body 1100 . can The driving force generated by the motor M may be transmitted to the brush body 1100 through the drum driving shaft 530. The motor module 500 may include a coupler 540 coupled to the drum driving shaft 530 and integrally rotatable.

The brush body 1100 may include a coupler groove 1120 provided to correspond to the coupler 540 of the motor module 500 . In other words, a coupler groove 1120 provided in a shape corresponding to the coupler 540 integrally rotatably coupled to the drum driving shaft 530 may be formed inside the brush body 1100 . The coupler groove 1120 may be integrally formed inside the brush body 1100. However, it is not limited thereto, and the coupler groove 1120 may be provided in a separate configuration and then fixed to the inner circumferential surface of the brush body 1100.

The coupler 540 and the coupler groove 1120 may be meshed with each other, and thus the driving force of the motor module 500 may be transmitted to the brush body 1100 so that the brush body 1100 may rotate.

The coupler 540 may be formed to have a protruding shape, and the coupler groove 1120 may be formed to allow the coupler 540 to be inserted. For example, the coupler 540 may be formed in a cylindrical shape including a plurality of polygonal protrusions, and the coupler groove 1120 may be formed correspondingly so that the coupler 540 can be inserted. However, the shapes of the coupler 540 and the coupler groove 1120 are not limited thereto, and the driving force transmitted from the motor M through the drum drive shaft 530 can be effectively transmitted to the brush body 1100 of the drum brush 1000. It can be formed in various shapes that can be.

However, the configuration for transmitting the driving force to the brush body 1100 is not limited to the configuration for the motor module 500 described above and may be provided in various ways.

The drum detachable cover 140 may be provided so that the brush body 1100 is rotatably coupled. As described above, the detachable drum cover 140 may be disposed on the right side of the lower housing 120, but is not limited thereto.

The drum detachable cover 140 may include a fixing part 141 and a cover switch 142 provided so that the drum brush 1000 can be coupled to the housing 102 . As the drum detachable cover 140 includes the fixing part 141 and the cover switch 142 , the drum brush 1000 may be detachably coupled to one side of the housing 102 . Furthermore, the drum detachable cover 140 may also be detachably coupled to the upper housing 110 and the lower housing 120 together with the drum brush 1000 by the fixing part 141 and the cover switch 142 .

The fixing part 141 may be formed to protrude from the drum detachable cover 140 toward the upper housing 110 to the lower housing 120 . A fixing hook (reference numeral not shown) and a cover switch 142 provided to press the fixing hook may be provided in the fixing part 141 . In the upper housing 110, the fixing part 141 is inserted, and an insertion groove 110a formed in a shape corresponding to the fixing part 141 to be inserted into the fixing part 141 may be formed. A fastening groove 110b provided to fix the fixing hook of the fixing part 141 may be formed in the insertion groove 110a of the upper housing 110 .

According to the above configuration, the drum detachable cover 140 may be provided to be easily detachable from the upper housing 110 and the lower housing 120, and the drum brush 1000 also includes the housing of the suction head 100 ( 102) to be easily detachable. However, the above description of the configuration of the detachable drum cover 140 is only an example for detachably coupling the drum brush 1000 to the housing 102, and the configuration of the detachable drum cover 140 is limited to the above description. It doesn't work. For example, the detachable drum cover 140 may be detachably mounted to the upper housing 110 and the lower housing 120 in a different way. Alternatively, the drum brush 1000 may be separated from the housing 102 or mounted on the housing 102 while the detachable drum cover 140 is coupled to the upper housing 110 and the lower housing 120. there is.

The drum brush 1000 may include a bearing drum cap 1310 and a drive drum cap 1320 disposed at both ends of the drum brush 1000 . Specifically, the bearing drum cap 1310 may be disposed on one end 1000a of the connector side housing 130 side of the drum brush 1000, and the drive drum cap 1320 is the drum detachable cover 140 of the drum brush 1000. ) side may be disposed on the other end (1000b).

The bearing drum cap 1310 covers one end 1000a of the drum brush 1000 and may be disposed to be supported on one end 1000a of the drum brush 1000 and the inner circumferential surface of the brush body 1100. The bearing drum cap 1310 may be provided to be fixed to one end of the brush body 1100 facing one side of the housing 102 to which the connector 200 is coupled. That is, the bearing drum cap 1310 may be provided to be fixed to one end of the brush body 1100 facing the connector side housing 130 . The bearing drum cap 1310 may cover outer surfaces of the socket 300 and the bearing 400 .

The bearing drum cap 1310 may be inserted into the brush body 1100 and formed to have a cylindrical shape including a hollow so as to be supported on an inner circumferential surface of the brush body 1100 .

The driving drum cap 1320 covers the other end 1000b opposite to one end 1000a of the drum brush 1000 on which the bearing drum cap 1310 is disposed, and the other end 1000b and the brush body of the drum brush 1000 It may be arranged to be supported on the inner circumferential surface of (1100).

The driving drum cap 1320 may be fixed to one end of the brush body 1100 so that the brush body 1100 is rotatably coupled to the detachable drum cover 140 .

The drum detachable cover 140 may include a drive drum cap fastening member 143 provided so that the drum detachable cover 140 is connected to the drive drum cap 1320, and the drive drum cap fastening member 143 is detachable to the drum. It can be rotatably supported by the drive drum cap bearing 144 provided on the cover 140 . The driving drum cap fastening member 143 may be arranged in parallel with the rotating shaft of the brush body 1100 so that the brush body 1100 is rotatable with respect to the drum detachable cover 140 .

The drive drum cap 1320 may be inserted into the brush body 1100 and formed to have a cylindrical shape including a hollow so as to be supported on an inner circumferential surface of the brush body 1100 .

A cap fixing protrusion 1311 may be formed on an outer circumferential surface of the bearing drum cap 1310 . A plurality of cap fixing protrusions 1311 may be provided. Each of the plurality of cap fixing protrusions 1311 may be spaced apart from each other on the outer circumferential surface of the bearing drum cap 1310 at predetermined intervals.

Likewise, a cap fixing protrusion 1321 may be formed on an outer circumferential surface of the drive drum cap 1320 . A plurality of cap fixing protrusions 1321 may be provided. Each of the plurality of cap fixing protrusions 1321 may be spaced apart from each other on the outer circumferential surface of the driving drum cap 1320 at predetermined intervals.

A cap fixing groove 1110 may be formed on the inner circumferential surface of the brush body 1100 to correspond to the cap fixing protrusion 1311 of the bearing drum cap 1310 and the cap fixing protrusion 1321 of the drive drum cap 1320. Cap fixing grooves 1110 may be formed at both ends of the brush body 1100 where the bearing drum cap 1310 and the drive drum cap 1320 are disposed. Each of the

cap fixing protrusions

1311 and 1321 may be inserted into the cap fixing groove 1110, and the bearing drum cap 1310 and the driving drum cap 1320 may be fixed to the inner circumferential surface of the brush body 1100, respectively. .

However, the above description of the drum brush 1000 including the bearing drum cap 1310 and the driving drum cap 1320 is only an example in which the drum brush 1000 is rotatably coupled to the suction head 100, The configuration of the drum brush 1000 is not limited thereto. The bearing drum cap 1310 and the drive drum cap 1320 may be coupled to the brush body 1100 differently from the above description, or the drum brush 1000 may use the bearing drum cap 1310 or the drive drum cap 1320. may or may not be included. For example, the drum brush 1000 may include a separate shaft member (not shown) disposed inside the brush body 1100 along a rotational axis of the brush body 1100. At this time, if the shaft member is connected to the motor module 500 and provided to rotatably support the brush body 1100, the drum brush 1000 may be rotatably coupled to the suction head 100.

Hereinafter, the configuration and function of the drum brush 1000 will be described in detail.

8 is a view showing a disassembled state of a brush assembly and a brush body in a drum brush according to an embodiment of the present disclosure. 9 is a view showing a state of a brush assembly of the drum brush of FIG. 8 viewed from one direction. 10 is a cross-sectional side view of a brush assembly of the drum brush of FIG. 8 . FIG. 11 is a view showing a state in which long foreign substances are wound around the brush assembly of FIG. 8 .

Referring to FIGS. 8 to 11 , the drum brush 1000 may include a brush body 1100 and a brush assembly 1200 covering the brush body 1100 . As described above, the brush body 1100 is rotatably provided by the motor module 500, and as the brush body 1100 rotates, the brush assembly 1200 rotates, and foreign substances on the surface to be cleaned are removed from the suction head 100. can be inhaled.

The brush body 1100 may receive driving force from a driving source such as the motor module 500 so that the drum brush 1000 is rotatable with respect to the suction head 100 . The brush body 1100 supports the inner surface of the brush assembly 1200, and the brush assembly 1200 may be provided to be rotatable with respect to the surface to be cleaned.

The brush body 1100 may have a cylindrical shape. As the brush body 1100 has a cylindrical shape, the brush assembly 1200 covering the outer circumferential surface of the brush body 1100 may also be formed to have a cylindrical shape. In detail, the brush assembly 1200 may have a hollow cylindrical shape to accommodate the brush body 1100 therein. In this case, the drum brush 1000 may have a cylindrical shape as a whole. As the drum brush 1000 has a cylindrical shape, the outer surface of the drum brush 1000 may maintain a distance within a certain range from the rotation axis. Therefore, even if the drum brush 1000 rotates, the distance from the rotating shaft of the drum brush 1000 to the surface to be cleaned can be maintained constant, and the drum brush 1000 and the suction head 100 coupled thereto can be prevented from flowing and cleaned. efficiency can be improved. However, it is not limited thereto, and the drum brush 1000 including the brush body 1100 may have various shapes.

The brush body 1100 may be formed to have a hollow cylindrical shape. The hollow of the brush body 1100 may be formed to extend along the rotation axis of the brush body 1100, or in other words, may be formed to extend along the length direction of the brush body 1100. That is, the brush body 1100 may have a pipe shape. In this case, the brush body 1100 can reduce weight and material cost, and components for transmitting driving force to the brush body 1100 can be accommodated in the hollow. However, the shape of the brush body 1100 is not limited thereto, and for example, the brush body 1100 may have the shape of a bar filled with no space inside. In this case, a separate shaft member (not shown) is fixed to both ends of the brush body 1100, and the brush body 1100 can be rotatably coupled to the suction head 100 around the shaft member. The shaft member may be coupled to the housing 102 of the suction head 100 and connected to a driving source (not shown) provided outside the brush body 1100 to receive driving force.

As described above, the connector 200, the socket 300, the bearing 400, and the motor module 500 may be accommodated inside the brush body 1100, but is not limited thereto. For example, the motor module 500 may be disposed outside the brush body 1100 and may be connected to a separate shaft member (not shown) connected to the brush body 1100 to transmit driving force to the brush body 1100. there is. In this case, components such as the connector 200, the socket 300, or the bearing 400 may also be disposed outside the brush body 1100.

The brush body 1100 may be made of a metal material or a plastic material. The brush body 1100 is rotatable with respect to the suction head 100 and may include various materials capable of supporting the brush assembly 1200 .

The brush assembly 1200 may cover the outer surface of the brush body 1100 . In other words, the brush assembly 1200 may cover the outer circumferential surface of the brush body 1100 . That is, the brush assembly 1200 may be disposed in the radial direction of the brush body 1100 . The brush assembly 1200 may be coupled to the brush body 1100 and rotatably provided together with the brush body 1100 with respect to the suction head 100 . As the brush assembly 1200 rotates, foreign substances on the surface to be cleaned may be sucked into the suction head 100 .

The brush assembly 1200 may be formed to include a cylindrical shape. Specifically, the brush assembly 1200 is formed to have a cylindrical shape with a hollow, and the brush body 1100 including the cylindrical shape can be accommodated in the hollow. The inner surface of the brush assembly 1200 may cover the outer surface of the brush body 1100, and more specifically, the inner surface of the brush assembly 1200 may contact the outer surface of the brush body 1100.

The brush assembly 1200 may be disposed along the length direction of the brush body 1100 . In other words, the brush assembly 1200 may extend from one end 1000a of the drum brush 1000 to the other end 1000b along the longitudinal direction. As the brush assembly 1200 extends from one end 1000a to the other end 1000b of the drum brush 1000 in the longitudinal direction, the brush assembly 1200 covers the entire outer surface of the brush body 1100 in the longitudinal direction. can As a result, it is possible to prevent a part of the outer surface of the brush body 1100 that is not covered by the brush assembly 1200 from being adhered to or wrapped by foreign substances. However, it is not limited thereto, and the brush assembly 1200 may not cover the entire length of the brush body 1100 along the length direction. For example, both ends of the brush body 1100 may be exposed without being covered by the brush assembly 1200, or the central portion of the brush body 1100 may be exposed without being covered by the brush assembly 1200. .

The brush assembly 1200 may be disposed to surround the brush body 1100 along a circumferential direction of the brush body 1100 in a radial direction of the brush body 1100 . In other words, the brush assembly 1200 may extend along the circumferential direction of the brush body 1100 . Alternatively, the brush assembly 1200 may be expressed as extending along the circumferential direction of the brush base 1210 to be described later. As shown in FIG. 9 , the brush assembly 1200 may have a circular shape when viewed from the length direction of the drum brush 1000 . In other words, when the brush assembly 1200 is cut into a plane perpendicular to the axis of rotation of the drum brush 1000, its cross section may include a circular shape.

The brush assembly 1200 may form at least a portion of an outer circumferential surface of the drum brush 1000 . Specifically, the brush assembly 1200 may entirely cover the outer circumferential surface of the brush body 1100 and form at least a portion of the outer circumferential surface of the drum brush 1000 . Furthermore, the outer circumferential surface of the brush assembly 1200 may form the entire outer circumferential surface of the drum brush 1000. However, as described above, the brush assembly 1200 may cover only a portion of the outer surface of the brush body 1100, and in this case, the brush assembly 1200 may form only a portion of the outer surface of the drum brush 1000.

The brush assembly 1200 may include a brush unit 1220 . The brush unit 1220 is configured to include a brush, and in detail, the brush unit 1220 may be defined as a unit including a plurality of brushes. The brush constituting the brush unit 1220 comes into contact with the surface to be cleaned, and may perform functions such as adsorbing foreign substances on the surface to be cleaned or guiding them to the inside of the suction head 100 . The brush unit 1220 may be formed in such a way that a brush is fixed to a brush base 1210 described later, but is not limited thereto, and the brush unit 1220 may be directly fixed on the brush body 1100.

The brush of the brush unit 1220 may be configured to include a nylon material. In addition, the brush of the brush unit 1220 may be a microfiber of a soft material having a small diameter, and for example, one brush of the brush unit 1220 may have a diameter of about 0.03 mm. However, it is not limited thereto, and the brush of the brush unit 1220 may include various materials and may have various diameters. Furthermore, the brush unit 1220 may include brushes having different materials, diameters, and lengths.

The brush unit 1220 may be formed in plurality. The plurality of

brush units

1220a and 1220b may be spaced apart from each other. Specifically, the plurality of

brush units

1220a and 1220b may be spaced apart from each other in the circumferential direction of the drum brush 1000 . An elastic blade 1230 described later may be disposed between the plurality of

brush units

1220a and 1220b, and a boundary between the plurality of

brush units

1220a and 1220b may be defined according to the elastic blade 1230. At this time, the plurality of brush units 1220 and elastic blades 1230 may be spaced apart from each other in the circumferential direction of the drum brush 1000. However, it is not limited thereto, and the elastic blade 1230 may be disposed not to be spaced apart from at least some of the plurality of brush units 1220 .

As the brush unit 1220 includes a plurality of

brush units

1220a and 1220b, the outer surface of the brush assembly 1200 may provide a visual effect of forming a kind of pattern when viewed from the outside by a user.

Each of the plurality of

brush units

1220a and 1220b may include different types of brushes. For example, some 1220a and other parts 1220b of the plurality of brush units 1220 may have different physical characteristics such as materials and specifications of brushes included therein, or may have different external characteristics such as colors. . A part 1220a and another part 1220b of the brush unit 1220 including brushes having different characteristics may be disposed adjacent to each other. In other words, some 1220a and some 1220b of the plurality of brush units 1220 may be disposed adjacent to each other and intersect in a radial direction of the brush body 1100 .

The plurality of brush units 1220 may be formed in a shape including a hollow cylindrical shape as a whole. The plurality of brush units 1220 are spaced apart from each other and the elastic blades 1230 may be disposed between them, but the combination of the plurality of brush units 1220 may have a cylindrical shape as a whole.

The plurality of brush units 1220 may be disposed along the length direction of the brush body 1100 . In other words, the plurality of brush units 1220 may be disposed along the length direction of the drum brush 1000 . Specifically, the plurality of brush units 1220 may extend along the longitudinal direction from one end 1000a of the drum brush 1000 toward the other end 1000b. As the plurality of brush units 1220 extend from one end 1000a toward the other end 1000b of the drum brush 1000 in the longitudinal direction, the plurality of brush units 1220 extend the outer surface of the brush body 1100 in the longitudinal direction. can cover the whole. However, unlike the above description of the brush assembly 1200, the plurality of brush units 1220 may not entirely cover the outer surface of the brush body 1100 in the longitudinal direction.

A plurality of brush units 1220 may be disposed along the circumferential direction of the drum brush 1000 . In other words, the plurality of brush units 1220 may be disposed along the length direction of the drum brush 1000 and simultaneously disposed along the circumferential direction of the drum brush 1000 . That is, the plurality of brush units 1220 may be arranged to spirally cover the brush body 1100 along the length direction of the drum brush 1000 .

The plurality of brush units 1220 may extend from one end 1000a of the drum brush 1000 toward the central portion 1000c of the drum brush 1000 along the rotational direction of the drum brush 1000. In addition, the plurality of brush units 1220 extend from the other end 1000b opposite to the one end 1000a of the drum brush 1000 toward the central portion 1000c of the drum brush 1000 along the rotational direction of the drum brush 1000. It can be. One end (1000a) and the other end (1000b) of the drum brush 1000 referred to herein refer to both ends located in the longitudinal direction of the drum brush 1000, and the central portion (1000c) is both ends (1000a, 1000b) means the part located between. In FIG. 8, the central portion 1000c is shown as referring to a portion where the Y-Y' line passes at the same distance from both

ends

1000a and 1000b of the drum brush 1000, but the central portion 1000c is necessarily a drum brush. It does not mean exactly in the middle of (1000). In other words, the plurality of brush units 1220 are arranged to have a 'V' shape as a whole when viewed from the side of the outer circumferential surface of the drum brush 1000, that is, in a direction perpendicular to the direction of the rotational axis of the drum brush 1000. It can be. Due to this configuration, when the drum brush 1000 rotates, the plurality of brush units 1220 can induce the flow of air and foreign matter introduced from the suction port 101a toward the central portion 1000c of the drum brush 1000. However, it is not limited thereto, and the plurality of brush units 1220 may extend only in one direction from one end 1000a of the drum brush 1000 toward the other end 1000b.

Each of the brush units 1220 may be integrally extended from one end 1000a of the drum brush 1000 toward the other end 1000b. Even when the brush unit 1220 is arranged to have a 'V' shape as a whole as described above, it may be integrally formed without being separated based on the central portion 1000c of the drum brush 1000. However, it is not limited thereto, and for example, the brush unit 1220 may be first formed by separately manufacturing both sides based on the central portion 1000c of the drum brush 1000 and then connecting them.

The plurality of brush units 1220 may be disposed to surround the brush body 1100 along a circumferential direction of the brush body 1100 in a radial direction of the brush body 1100 . In other words, the plurality of brush units 1220 may extend along the circumferential direction of the brush body 1100 . Alternatively, the plurality of brush units 1220 may be expressed as extending along the circumferential direction of the brush base 1210 to be described later. As shown in FIG. 9 , the plurality of brush units 1220 may be formed such that each of the brush units 1220 includes an arc when viewed in the longitudinal direction of the drum brush 1000 . In other words, when the plurality of brush units 1220 are cut in a plane perpendicular to the axis of rotation of the drum brush 1000, each cross section of the brush unit 1220 may be formed to include an arc shape.

The plurality of brush units 1220 may form at least a portion of the outer circumferential surface of the drum brush 1000 . Specifically, the plurality of brush units 1220 may entirely cover the outer circumferential surface of the brush body 1100 and form at least a portion of the outer circumferential surface of the drum brush 1000 . Furthermore, the outer circumferential surface of the plurality of brush units 1220 may form the entire outer circumferential surface of the drum brush 1000 . However, as described above, the plurality of brush units 1220 may cover only a part of the outer surface of the brush body 1100, and in this case, the plurality of brush units 1220 form only a part of the outer surface of the drum brush 1000. You may.

The brush assembly 1200 may include an elastic blade 1230 . The elastic blade 1230 may be formed to extend in a radial direction of the brush body 1100 . In other words, the elastic blade 1230 may protrude in the radial direction of the brush body 1100 .

The elastic blade 1230 may be disposed between the plurality of brush units 1230 . Specifically, the plurality of brush units 1220 may be disposed spaced apart from each other in a circumferential direction, and the elastic blade 1230 may be disposed between the plurality of brush units 1220 spaced apart from each other. As described above, the elastic blade 1230 may be disposed to be spaced apart from the plurality of brush units 1220, but may be disposed to contact at least some of the plurality of brush units 1220 without being limited thereto.

Referring to FIG. 11, as the elastic blade 1230 is disposed between the plurality of brush units 1220, when a long foreign material such as hair or animal hair is wound around the drum brush 1000, the elastic blade 1230 ) can prevent foreign substances from entering the inside of the brush unit 1220 .

The elastic blade 1230 may be formed to have a shorter length than the plurality of brush units 1220 in the radial direction of the brush body 1100 . Specifically, the elastic blade 1230 may be formed such that a length extending from the brush base 1210 in the radial direction of the brush body 1100 is shorter than that of the plurality of brush units 1220 . However, this does not mean that the plurality of brush units 1220 protrude more in the radial direction of the brush body 1100 than the elastic blades 1230, and that the length extended relative to the brush base 1210 is short. means that As will be described later, when the elastic blade 1230 is disposed along the protruding portion 1000d, it may protrude more in the radial direction of the brush body 1100 than the portion of the brush unit 1220 disposed outside the protruding portion 1000d. there is. Even in this case, the elastic blade 1230 may protrude less in the radial direction of the brush body 1100 than the brush of the brush unit 1220 disposed on the protrusion 1000d. With this configuration, when the drum brush 1000 comes into contact with the surface to be cleaned, the plurality of brush units 1220 can contact the surface to be cleaned before the elastic blade 1230, and the elastic blade 1230 collides with the surface to be cleaned, resulting in elasticity. Damage to the blade 1230 or the surface to be cleaned can be prevented. However, in order for the elastic blade 1230 to perform its function, the elastic blade 1230 may preferably have at least a similar length even if it has a shorter length than the brush unit 1220. However, the length relationship between the elastic blade 1230 and the brush unit 1220 is not limited thereto.

Elastic blades 1230 may be provided in plurality. In this case, each of the plurality of brush units 1220 may be arranged to extend in the circumferential direction of the drum brush 1000 between the plurality of elastic blades 1230 .

The elastic blade 1230 may be fixed to a brush base 1210 to be described later, and specifically, one end of the elastic blade 1230 may be fixed to the brush base 1210. However, it is not limited thereto, and the elastic blade 1230 may be formed in various ways. For example, the elastic blade 1230 may pass through the brush base 1210 and be fixed to the brush base 1210 or may be directly fixed to the brush body 1100 .

The elastic blades 1230 may be disposed along the length direction of the brush body 1100 . In other words, the elastic blades 1230 may be disposed along the length direction of the drum brush 1000. Specifically, the elastic blade 1230 may extend along the length direction from one end 1000a of the drum brush 1000 toward the other end 1000b. However, unlike this, the elastic blade 1230 may be disposed only on a portion of the drum brush 1000 in the longitudinal direction.

The elastic blades 1230 may be disposed along the circumferential direction of the drum brush 1000 . In other words, the elastic blades 1230 may be disposed along the length direction of the drum brush 1000 and at the same time disposed along the circumferential direction of the drum brush 1000. That is, the elastic blade 1230 may be arranged to cover the brush body 1100 in a spiral shape along the length direction of the drum brush 1000 .

The elastic blade 1230 may extend along the rotational direction of the drum brush 1000 from one end 1000a of the drum brush 1000 toward the central portion 1000c of the drum brush 1000. In addition, the elastic blade 1230 may extend along the rotational direction of the drum brush 1000 toward the central portion 1000c of the drum brush 1000 from the other end 1000b opposite to the one end 1000a of the drum brush 1000. there is. One end (1000a) and the other end (1000b) of the drum brush 1000 referred to herein refer to both ends located in the longitudinal direction of the drum brush 1000, and the central portion (1000c) is both ends (1000a, 1000b), and does not necessarily mean the center of the drum brush 1000. In other words, the elastic blade 1230 may be arranged to have a 'V' shape as a whole when viewed from the side of the outer circumferential surface of the drum brush 1000, that is, the direction perpendicular to the direction of the rotational axis of the drum brush 1000. there is. However, it is not limited thereto, and the elastic blade 1230 may extend only in one direction from one end 1000a of the drum brush 1000 toward the other end 1000b.

The elastic blade 1230 may be formed to integrally extend from one end 1000a of the drum brush 1000 toward the other end 1000b. Even when the elastic blades 1230 are arranged to have a 'V' shape as a whole as described above, they may be integrally formed without being separated based on the central portion 1000c of the drum brush 1000. However, it is not limited thereto, and for example, the elastic blade 1230 may be first formed by separately manufacturing both sides based on the central portion 1000c of the drum brush 1000 and then connecting them.

In accordance with the above characteristics, the elastic blade 1230 may be arranged to extend from one end 1000a in the longitudinal direction of the drum brush 1000 to the other end 1000b along the plurality of brush units 1220. In other words, the elastic blades 1230 may be arranged to extend in the longitudinal direction of the drum brush 1000 corresponding to the plurality of brush units 1220 . Accordingly, the elastic blade 1230 can prevent long foreign substances from entering the inside of the plurality of brush units 1220 in the entire area between one end and the other end of the plurality of brush units 1220 in the longitudinal direction. Furthermore, when the user separates the foreign matter wound on the outer surface of the drum brush 1000 from the drum brush 1000, the foreign matter is moved along the elastic blade 1230 to both

ends

1000a and 1000b of the drum brush 1000 to facilitate can be separated. At this time, the elastic blade 1230 may perform a function of a guide to prevent foreign substances from digging into the brush unit 1220 and to move to both

ends

1000a and 1000b of the drum brush 1000.

The elastic blade 1230 may be configured to include an elastic material. An elastic material constituting the elastic blade 1230 may include a rubber material, but is not limited thereto. The elastic blade 1230 may have a predetermined rigidity or elasticity to prevent foreign substances from penetrating deeply into the brush unit 1220, and as the drum brush 1000 rotates, the elastic blade 1230 is applied to the surface to be cleaned. It may have elasticity so as to mitigate the impact when colliding.

In addition to the above-described function of the elastic blade 1230 , the elastic blade 1230 may perform a function of supplementing the cleaning efficiency of foreign substances by the brush unit 1220 . The elastic blade 1230 may be configured to include a material that is harder than the brush unit 1220, and accordingly, foreign substances on the surface to be cleaned can be efficiently pushed into the suction head 100. However, in this case, there is a possibility that the elastic blade 1230 or the surface to be cleaned may be damaged while the elastic blade 1230 collides with the surface to be cleaned. can be solved

The brush assembly 1200 may include a brush base 1210 covering an outer surface of the brush body 1100 . In detail, the brush base 1210 covers the outer circumferential surface of the brush body 1100 and may be disposed between the brush body 1100 and the plurality of brush units 1220 . When the brush body 1100 is formed to include a cylindrical shape, the brush base 1210 may be formed in a cylindrical shape with a hollow correspondingly. The brush base 1210 may be disposed along the length direction of the brush body 1100 . The inner surface of the brush base 1210 may come into contact with the outer surface of the brush body 1100 .

A plurality of brush units 1220 may be disposed on the brush base 1210 . Specifically, the plurality of brush units 1220 may be disposed toward the radial direction of the drum brush 1000 from the brush base 1210 . The plurality of brush units 1220 may have one end fixed to the brush base 1210 and the other end extending from the brush base 1210 toward the radial direction of the drum brush 1000 . In other words, the plurality of brush units 1220 may be provided so that one end is planted in the brush base 1210 . That is, the brush base 1210 may function as a base supporting the plurality of brush units 1220 .

The brush base 1210 may include a textile material such as cloth. In this case, the plurality of brush units 1220 may be manufactured by being planted in the brush base 1210 by processing fabric. However, it is not limited thereto, and the brush base 1210 may be configured to include various materials.

An elastic blade 1230 may be disposed on the brush base 1210 . Specifically, the elastic blades 1230 may be disposed toward the radial direction of the drum brush 1000 from the brush base 1210 . One end of the elastic blade 1230 may be fixed to the brush base 1210, and the other end may extend from the brush base 121 toward the radial direction of the drum brush 1000. In this case, the brush base 1210 may function as a base supporting the elastic blade 1230 .

The brush base 1210 may be disposed by the brush body 1100 as the brush body 1100 is disposed on the inside, and the brush unit 1220 and the elastic blade 1230 are disposed on the outside to form the brush unit 1220 and An elastic blade 1230 may be supported.

The elastic blade 1230 and the plurality of brush units 1220 may be coupled to the brush base 1210 to cover the outer surface of the brush body 1100 . That is, the plurality of brush units 1220, the elastic blades 1230, and the brush base 1210 may be mutually coupled to cover the outer surface of the brush body 1100 integrally. In other words, the plurality of brush units 1220, the elastic blades 1230, and the brush base 1210 may form an integral brush assembly 1200 to cover the brush body 1100.

The brush assembly 1200 may include a base member 1240 disposed on the brush base 1210 .

The base member 1240 may be disposed between the brush base 1210 and the brush body 1100 . In other words, the base member 1240 may be disposed on the inner surface of the brush base 1210 and may be disposed on the outer surface of the brush body 1100 .

The base member 1240 may be coupled to an inner circumferential surface of the brush base 1210 . In other words, the base member 1240 may be coupled to the inner surface of the brush base 1210 facing the outer surface of the brush body 1100 . The base member 1240 may be coupled to the inner circumferential surface of the brush base 1210 and then coupled to the outer circumferential surface of the brush body 1100 . However, it is not limited thereto, and the base member 1240 is first coupled to the outer circumferential surface of the brush body 1100, and then the brush base 1210 covers the outer surface of the base member 1240 together with the outer circumferential surface of the brush body 1100, may be combined. A specific method of coupling the base member 1240 to the brush base 1210 will be described later.

The base member 1240 may be provided in plurality. In this case, the plurality of base members 1240 may be spaced apart from each other in the circumferential direction of the brush base 1210 from the inner circumferential surface of the brush base 1210 . However, it is not limited thereto, and the plurality of base members 1240 may be spaced apart from each other in the longitudinal direction of the brush base 1210, or may be disposed to contact each other. Alternatively, the base member 1240 may be integrally formed.

The base member 1240 may be disposed along the length direction of the brush base 1210 . In other words, the base member 1240 may be disposed along the length direction of the drum brush 1000 . Specifically, the base member 1240 may extend from one end 1000a of the drum brush 1000 to the other end 1000b along the longitudinal direction. However, unlike this, the base member 1240 may be disposed on only a portion of the inside of the brush base 1210 in the longitudinal direction of the drum brush 1000 .

The base member 1240 may be disposed along the circumferential direction of the drum brush 1000 . In other words, the base member 1240 may be disposed along the length direction of the drum brush 1000 and at the same time disposed along the circumferential direction of the drum brush 1000. That is, the base member 1240 may be spirally disposed on the inner circumferential surface of the brush base 1210 along the length direction of the drum brush 1000, and may be disposed to cover the brush body 1100 spirally.

The base member 1240 may extend from one end 1000a of the drum brush 1000 toward the central portion 1000c of the drum brush 1000 along the rotational direction of the drum brush 1000. In addition, the base member 1240 may extend from the other end 1000b opposite to the one end 1000a of the drum brush 1000 toward the central portion 1000c of the drum brush 1000 along the rotational direction of the drum brush 1000. there is. In other words, the base member 1240 is generally 'V' when viewed from the inside of the brush assembly 1200 from which the brush body 1100 is separated, that is, when viewed from a direction perpendicular to the direction of the rotational axis of the drum brush 1000. It can be arranged to have the shape of a 'character. However, it is not limited thereto, and the elastic blade 1230 may extend only in one direction from one end 1000a of the drum brush 1000 toward the other end 1000b.

The base member 1240 may be formed to integrally extend from one end 1000a of the drum brush 1000 toward the other end 1000b. As described above, even when the base member 1240 is arranged to have a 'V' shape as a whole, it may be integrally formed without being separated based on the central portion 1000c of the drum brush 1000. However, it is not limited thereto, and for example, the base member 1240 may be first formed by separately manufacturing both sides based on the central portion 1000c of the drum brush 1000 and then connecting them.

The drum brush 1000 may be formed such that at least a portion of the outer circumferential surface protrudes in a radial direction of the drum brush 1000 . In this way, a shape protruding from the outer circumferential surface of the drum brush 1000 in the radial direction of the drum brush 1000 may be referred to as a protruding portion 1000d.

When the drum brush 1000 has a protrusion 1000d formed on its outer circumferential surface, when the drum brush 1000 rotates, the outer circumferential surface of the drum brush 1000 is formed in a smooth cylinder surface shape to the suction head 100. Larger changes in the flow of incoming air and debris can occur. Specifically, as the drum brush 1000 includes the protruding portion 1000d, when the drum brush 1000 rotates, a change in speed and direction may occur in the flow of air and foreign matter. The efficiency of the suction head 100 to suck foreign substances can be improved by such a change in the flow of air and foreign substances. In particular, even when it is difficult for the drum brush 1000 to directly contact the surface to be cleaned, such as when the surface to be cleaned has a groove or the surface to be cleaned is a corner between a wall and a floor, the protrusion 1000d induces a change in the flow of air and foreign matter. Thus, the efficiency of suctioning of foreign substances located in a place where the drum brush 1000 cannot reach can be improved.

The protrusion 1000d may be formed by the base member 1240 . Specifically, as the base member 1240 is disposed between the brush base 1210 and the brush body 1100, the portion where the base member 1240 is located on the inside of the outer circumferential surface of the drum brush 1000 is different from other portions. It may have a shape that protrudes compared to. The protrusion 1000d may be formed when the base member 1240 is partially disposed between the inner circumferential surface of the brush base 1210 and the outer circumferential surface of the brush body 1100 . However, it is not limited thereto, and even when the base member 1240 is disposed between the brush base 1210 and the brush body 1100 as a whole, as the thickness of the base member 1240 varies depending on the position, the protrusion 1000d can be formed That is, the base member 1240 may perform a function of allowing at least a portion of the outer circumferential surface of the drum brush 1000 to protrude in the radial direction of the drum brush 1000 .

The protrusion 1000d may be disposed to correspond to the position of the base member 1240, and accordingly, as described above, it is disposed along the length direction of the drum brush 1000 or extends along the rotational direction of the drum brush 1000. It may be arranged in various ways according to the arrangement of the base member 1240, such as being.

The elastic blade 1230 may be disposed along a portion of the outer circumferential surface of the drum brush 1000 protruding in the radial direction of the drum brush 1000 . That is, at least a portion of the elastic blade 1230 may be disposed along the protruding portion 1000d. In this case, the elastic blade 1230 may be located in a radial direction of the brush body 1100 from the base member 1240 . In other words, the base member 1240 may be disposed along one end of the brush base 1210 side of the elastic blade 1230, that is, a portion where the elastic blade 1230 is fixed to the brush base 1210. Accordingly, the elastic blade 1230 may protrude more in the radial direction of the drum brush 1000 than some of the plurality of brush units 1220 that are not disposed on the protruding portion 1000d, and long foreign substances such as hair may be removed from the brush unit ( 1220) can be more effectively prevented. However, it is not limited thereto, and the elastic blade 1230 and the base member 1240 may be arranged in various ways without being constrained to each other's positions. That is, the base member 1240 may not be disposed along the position of the elastic blade 1230 unlike the above.

The base member 1240 may be configured to include an elastic material. Examples of the elastic material constituting the base member 1240 may include rubber. Accordingly, even if a protruding portion 1000d protruding from a part of the outer surface of the drum brush 1000 is formed by the base member 1240, the protruding portion 1000d may be compressed by the elasticity of the base member 1240 when in contact with the surface to be cleaned. In addition, shock generated when the protruding portion 1000d and the surface to be cleaned contact each other can be alleviated. In this respect, the base member 1240 may be referred to as an 'elastic member'. However, it is not limited thereto, and the base member 1240 may be configured to include various materials.

The elastic blade 1230, the plurality of brush units 1220, and the base member 1240 may be coupled to the brush base 1210 to cover the outer surface of the brush body 1100. That is, the plurality of brush units 1220, the elastic blades 1230, the base member 1240, and the brush base 1210 may be coupled to each other to integrally cover the outer surface of the brush body 1100. In other words, the plurality of brush units 1220, the elastic blades 1230, the base member 1240, and the brush base 1210 may form an integral brush assembly 1200 to cover the brush body 1100.

The number of brush bases 1210 corresponding to the plurality of brush units 1220 may be provided, and then the plurality of brush bases 1210 may be coupled to each other to form one brush base 1210. Specifically, a plurality of brush bases 1210 are provided, and each brush unit 1220 is planted in the brush base 1210, and then the plurality of brush bases 1210 in which the plurality of brush units 1220 are planted are combined with each other. It can be. A method of manufacturing the drum brush 1000 including the brush base 1210 will be described later.

12 is a view showing a state in which a suction head sucks foreign substances according to an embodiment of the present disclosure. 13 is a diagram illustrating a state in which a drum brush rotates according to an embodiment of the present disclosure.

Referring to FIGS. 12 and 13 , the drum brush 1000 may be disposed inside the suction head 100 of the cleaner 1 to be rotatably provided. As the drum brush 1000 rotates, foreign substances on the surface to be cleaned are sucked into the suction head 100, and may eventually move to the cleaner body 10 by the suction force transmitted from the cleaner body 10.

The drum brush 1000 can rotate in the R direction as shown in FIGS. 12 and 13, and air and foreign matter on the surface to be cleaned flow from the front of the suction head 100 to the rear (flow marking direction). can do.

The R direction in which the drum brush 1000 rotates may be a direction in which the brush unit 1220 rotates from top to bottom when viewed from the front of the suction head 100 . In other words, the R direction rotates clockwise when viewed from the left end 1000a of the drum brush 1000 and counterclockwise when viewed from the right end 1000b of the drum brush 1000. It may be a direction. That is, as the drum brush 1000 rotates in the R direction, the upper part of the drum brush 1000 moves to the front of the suction head 100, and the lower part of the drum brush 1000 moves to the rear of the suction head 100. can Alternatively, as the drum brush 1000 rotates in the R direction, the front part of the drum brush 1000 may move downward and the rear part of the drum brush 1000 may move upward.

At this time, the plurality of brush units 1220 and elastic blades 1230 are directed from one end 1000a and the other end 1000b of the drum brush 1000 toward the central portion 1000c of the drum brush 1000, respectively. ) It is as described above that it can be extended in the R direction, which is the rotational direction of. With this configuration, when the drum brush 1000 rotates, air and foreign matter may flow into the suction head 100 at a position adjacent to the central portion 1000c of the drum brush 1000. However, it is not limited thereto, and the plurality of brush units 1220 and elastic blades 1230 may extend in various directions.

14 is a diagram illustrating a process of coupling a plurality of brush units and elastic blades to a brush base in the process of manufacturing a brush assembly according to an embodiment of the present disclosure. 15 is a view illustrating a process of coupling a base member to a brush base in a process of manufacturing a brush assembly according to an embodiment of the present disclosure. 16 is a view showing a brush assembly manufactured according to the process of FIGS. 14 and 15 . FIG. 17 is a view showing how the brush assembly of FIG. 16 is coupled to a brush body.

A method of manufacturing a drum brush according to an embodiment of the present disclosure will be described with reference to FIGS. 14 to 17 .

14 to 17 , the drum brush 1000 may be manufactured in such a way that the brush assembly 1200 is first manufactured and then coupled to the brush body 1100.

Referring to FIG. 14 , a plurality of brush units 1220 may be coupled to a brush base 1210 . Specifically, the plurality of brush units 1220 may be manufactured in such a way that one end thereof is fixed to the brush base 1210 . The elastic blade 1230 is disposed between the plurality of brush units 1220 and may be manufactured in such a way that one end is fixed to the brush base 1210 . In FIG. 14 , the plurality of brush units 1220 are first coupled to the brush base 1210 and then the elastic blades 1230 are coupled to the brush base 1210, but the order of coupling is not limited thereto.

In FIG. 14, a plurality of

brush units

1220a and 1220b are each fixed to a plurality of brush bases 1210, and then the plurality of brush bases 1210 are combined with each other to form one brush base 1210. , but not limited thereto. Unlike shown in FIG. 14 , the plurality of

brush units

1220a and 1220b may be spaced apart from each other and fixed on the integrally formed brush base 1210 .

Referring to FIG. 15 , a base member 1240 may be coupled to a surface opposite to a surface to which the plurality of brush units 1220 and elastic blades 1230 of the brush base 1210 are coupled. 15, the base member 1240 is illustrated as being disposed parallel to the elastic blade 1230, but the arrangement of the base member 1240 is not limited thereto as described above. 15 shows that the plurality of brush units 1220 and the elastic blades 1230 are first coupled to the brush base 1210 and then the base member 1240 is coupled to the brush base 1210, but the order of coupling is as follows. Not limited.

Through the process of FIGS. 14 and 15 , the brush assembly 1200 shown in FIG. 16 may be manufactured. The plurality of

brush units

1220a and 1220b, the elastic blade 1230, and the brush base 1210 to which they are coupled may each be formed to have a V shape. Specifically, the plurality of brush units 1220, the elastic blades 1230, and the brush base 1210 each have a V-shaped surface visible from the outside in the radial direction of the drum brush 1000 when the drum brush 1000 is completed later. It can be formed to have With this configuration, when the drum brush 1000 is completed, the plurality of brush units 1220 and the elastic blades 1230 move toward the central portion 1000c from both

ends

1000a and 1000b of the drum brush 1000, respectively. It may be arranged to extend along the rotational direction (R direction) of the brush 1000 .

Similarly, the base member 1240 may also be arranged to have a V-shape, and when the drum brush 1000 is completed, the base member 1240 is formed from both

ends

1000a and 1000b of the drum brush 1000 to the central portion ( 1000c) may be disposed to extend along the rotational direction (R direction) of the drum brush 1000.

The brush base 1210, the plurality of brush units 1220, the elastic blades 1230, and the base member 1240 may be coupled to each other in various ways. An example of the bonding method may be adhesion by silicone adhesive or the like. As described above, the brush base 1210 may be combined after each of the plurality of brush bases 1210 is manufactured. In this case, a method of sewing the plurality of brush bases 1210 to each other by sewing is used. It could be. However, it is not limited thereto, and various methods of manufacturing the integral brush assembly 1200 by combining each component of the brush assembly 1200 may be provided.

When the brush assembly 1200 of FIG. 16 is coupled to the brush body 1100 while surrounding the outer circumferential surface of the brush body 1100 as shown in FIG. 17, the drum brush 1000 described in FIGS. 1 to 13 can be manufactured. can

The brush assembly 1200 may be coupled to the brush body 1100 in various ways. For example, the brush assembly 1200 may be coupled to the brush body 1100 using double-sided tape or silicone adhesive.

As shown in FIGS. 14 to 17, the drum brush 1000 is manufactured by first manufacturing the brush assembly 1200 and then coupling the brush assembly 1200 to the brush body 1100 while wrapping the brush body 1100. During manufacturing, the brush assembly 1200 can be easily coupled to the brush body 1100, and manufacturing efficiency can be improved. However, it is not limited thereto, and the drum brush 1000 may be manufactured in various ways. For example, in the drum brush 1000, the base member 1240 is first coupled to the brush body 1100, and then the brush base 1210 is coupled, and then a plurality of brush units 1220 and elastic blades 1230 thereon. It may be manufactured in a way that is combined.

The manufacturing method of the drum brush 1000 described in FIGS. 14 to 17 is only an example for explaining the manufacturing method of the drum brush according to the spirit of the present disclosure, and the spirit of the present disclosure is limited to the bar described in FIGS. 14 to 17 It doesn't work.

With the above configuration, the cleaner 1 according to the spirit of the present disclosure may include the drum brush 1000 including the brush assembly 1200. The brush assembly 1200 includes elastic blades 1230 disposed between the plurality of brush units 1220 to effectively prevent foreign substances from entering the inside of the plurality of brush units 1220 . In addition, the brush assembly 1200 may include a base member 1240 to form protrusions 1000d on the outer surface of the drum brush 1000, and change the flow of air and foreign substances when the drum brush 1000 rotates. can cause Accordingly, the cleaner 1 including the drum brush 1000 according to the spirit of the present disclosure can improve cleaning efficiency.

18 is a view showing manufacturing a brush assembly of a drum brush according to another embodiment of the present disclosure. 19 is a view showing a drum brush including a brush assembly manufactured according to FIG. 18;

A method of manufacturing a drum brush according to another embodiment of the present disclosure will be described with reference to FIGS. 18 and 19 . In describing the embodiments shown in FIGS. 18 and 19, the same reference numerals are given to the same components as those shown in FIGS. 1 to 17, and descriptions thereof may be omitted.

Referring to FIGS. 18 and 19 , a drum brush 2000 may include a brush body 2100 having a cylindrical shape and a brush assembly 2200 covering an outer circumferential surface of the brush body 2100 . The brush assembly 2200 may include a brush unit 2220 including brushes formed to adsorb or push foreign substances on the surface to be cleaned, and the brush unit 2220 may be formed of a plurality of

brush units

2220a and 2220b. can Elastic blades 2230 may be disposed between the plurality of brush units 2220 , and the elastic blades 2230 may extend in a radial direction of the brush body 2100 . The brush assembly 2200 may include a brush base 2210 disposed between the brush body 2100 and the plurality of brush units 2220 to cover the outer circumferential surface of the brush body 2100 . A plurality of brush units 2220 and elastic blades 2230 may be disposed on an outer circumferential surface of the brush base 2210, and a base member 2240 may be disposed on an inner circumferential surface of the brush base 2210.

The plurality of brush units 2220 and elastic blades 2230 are different from the plurality of brush units 1220 and elastic blades 1230 described in FIGS. 1 to 17 . It may be arranged to extend in one direction along the length direction of the drum brush 2000 . In other words, the plurality of brush units 2220 and elastic blades 2230 rotate from one end 2000a to the other end 2000b in the drum brush 2000 in the direction of rotation of the drum brush 2000 or in the opposite direction. may be extended. That is, the plurality of brush units 2220 and the elastic blades 2230 may be spirally arranged along a predetermined direction with respect to the length direction of the drum brush 2000 .

Similarly, the base member 2240 may be disposed to extend in one direction along the length direction of the drum brush 2000 . In other words, the base member 2240 may extend from one end 2000a of the drum brush 2000 toward the other end 2000b in a rotational direction of the drum brush 2000 or in the opposite direction. In this case, the base member 2240 may be disposed along the elastic blade 2230, but is not limited thereto as described in FIGS. 1 to 17.

Referring to FIG. 18 , a plurality of brush units 2220 and elastic blades 2230 may be coupled to a brush base 2210. The base member 2240 may be coupled to a surface opposite to a surface to which the plurality of brush units 2220 and the elastic blades 2230 of the brush base 2210 are coupled. In FIG. 18, the plurality of brush units 2220 are first coupled to the brush base 2210, and then the elastic blades 2230 and the base member 2240 are coupled to the brush base 2210, but the order of coupling is as follows. Not limited.

In addition, in FIG. 18, a plurality of

brush units

2220a and 2220b are fixed to a plurality of brush bases 2210, respectively, and then the plurality of brush bases 2210 are combined with each other to form one brush base 2210. However, it is not limited thereto. Unlike shown in FIG. 18 , the plurality of

brush units

2220a and 2220b may be spaced apart from each other and fixed on the integrally formed brush base 2210 .

Through the process of FIG. 18, the brush assembly 2200 can be manufactured, and as shown in FIG. 19, the brush assembly 2200 covers the outer circumferential surface of the brush body 2100 and is coupled to the brush body 2100 to create a drum Brush 2000 may be complete.

As shown in FIG. 18, the plurality of

brush units

2220a and 2220b, the elastic blade 2230, and the brush base 2210 to which they are coupled may each have a parallelogram or a shape similar thereto. Specifically, the plurality of brush units 2220, the elastic blades 2230, and the brush base 2210 each have a parallelogram shape when the drum brush 2000 is completed later, the surface visible from the outside in the radial direction of the drum brush 2000. It can be formed to have. With this configuration, as shown in FIG. 19, when the drum brush 2000 is completed, the plurality of brush units 2220 and elastic blades 2230 move from one end 2000a to the other end 2000b of the drum brush 2000. ) It may be arranged to extend in one direction toward. In other words, the plurality of brush units 2220 and elastic blades 2230 may be formed to have a spiral extending only in one direction along the length direction of the drum brush 2000 .

Similarly, the base member 2240 may also be formed to have a parallelogram shape in cross section, and when the drum brush 2000 is completed, the base member 2240 moves in one direction along the length direction of the drum brush 2000. It may be formed to have a spiral that only extends.

The manufacturing method of the drum brush 2000 described in FIGS. 18 and 19 is only an example of manufacturing a drum brush according to the spirit of the present disclosure, and the spirit of the present disclosure is not limited to the bar described in FIGS. 18 and 19 .

In the above, specific embodiments have been illustrated and described. However, it is not limited to the above embodiments, and those skilled in the art will be able to make various changes without departing from the gist of the technical idea of the invention described in the claims below. .

Claims

cleaner body;

a suction head connected to the cleaner body by a connecting pipe and provided with a suction port to suck foreign substances; and

A drum brush including a brush body having a cylindrical shape and rotatably coupled to the suction head, which is arranged to surround the brush body along a circumferential direction of the brush body in a radial direction of the brush body, and is disposed to surround the outer circumferential surface of the drum brush. A cleaner comprising: a plurality of brush units including brushes forming at least a part of a drum brush including elastic blades extending in a radial direction of the brush body and disposed between the plurality of brush units.
According to claim 1,

The plurality of brush units and the elastic blades are disposed along a longitudinal direction of the drum brush and a circumferential direction of the drum brush.
According to claim 2,

The plurality of brush units and the elastic blades extend along the rotational direction of the drum brush from one end of the drum brush toward the central portion of the drum brush, and from the other end opposite to one end of the drum brush to the central portion of the drum brush. a vacuum cleaner extending along the direction of rotation of the drum brush toward the
According to claim 1,

The plurality of brush units and the elastic blades are disposed spaced apart from each other in a circumferential direction of the drum brush.
According to claim 1,

The elastic blade is provided in plurality,

The plurality of brush units are arranged to extend in a circumferential direction of the drum brush between the plurality of elastic blades.
According to claim 1,

The drum brush includes a brush base covering an outer circumferential surface of the brush body and disposed between the brush body and the plurality of brush units,

The elastic blade is disposed on the brush base.
According to claim 6,

One end of the elastic blade is fixed to the brush base and extends from the brush base in a radial direction of the drum brush.
According to claim 6,

The drum brush may further include a base member disposed between the brush base and the brush body.
According to claim 8,

The drum brush is a vacuum cleaner in which a part of an outer circumferential surface is formed to protrude in a radial direction of the drum brush by the base member.
According to claim 9,

The elastic blade is disposed along a portion of the outer circumferential surface of the drum brush protruding in the radial direction of the drum brush.
According to claim 8,

The base member is disposed along a longitudinal direction of the drum brush and a circumferential direction of the drum brush.
According to claim 8,

The base member is disposed along one end of the brush base side of the elastic blade.
According to claim 8,

The base member is configured to include an elastic material.
According to claim 8,

The plurality of brush units, the elastic blades and the base member are coupled to the brush base, respectively.
According to claim 1,

The elastic blade is disposed to extend from one end toward the other end of the drum brush in the longitudinal direction along the plurality of brush units.