KR20230107038A - Vacuum cleaner - Google Patents

Abstract

A vacuum cleaner is provided. A vacuum cleaner includes a main body provided to generate a suction force, and a suction head connected to the main body to suck foreign substances from a cleaning surface and including a drum brush provided to be rotatable, wherein the drum brush comprises: a rotatable drum body; A brush provided on the outer circumference of the drum body to contact the cleaning surface and a brush provided on the outer circumference of the drum body, disposed at the rear of the brush based on the rotation direction of the drum brush, toward the radial direction of the drum body and a supporter including a protruding portion extending from the protruding portion and a support portion extending from the protruding portion along the circumference of the drum body to support the foreign matter caught in the brush at a distance from the drum body.

Description

Vacuum cleaner {VACUUM CLEANER}

The present disclosure relates to a vacuum cleaner having a suction head equipped with a rotating drum brush, and more particularly, to a vacuum cleaner having a structure in which foreign substances wound around the drum brush can be easily removed.

In general, a vacuum cleaner includes a suction force generating device that generates suction force, a suction head that sucks air and foreign substances from a cleaning surface through the suction force of the suction force generating device, and a foreign substance collection chamber that separates and collects foreign substances from the air sucked through the suction head. It is a home appliance for performing cleaning by having a.

The suction head may include a housing having a suction port and a drum brush that sweeps the cleaning surface to induce efficient suction of foreign substances on the cleaning surface through the suction port. The drum brush may be rotatably provided by being connected to the driving unit.

The drum brush consists of a drum body and a brush provided around the drum body, and as the drum brush rotates, foreign substances such as hair, animal hair, and thread among foreign substances sucked through the suction port may be caught between the brushes and wound. can

One aspect of the present disclosure provides a vacuum cleaner having an improved structure to easily remove foreign substances wound around a drum brush.

One aspect of the present disclosure provides a vacuum cleaner having an improved structure so that foreign substances can be easily removed by a cutter by separating them from the drum body.

A vacuum cleaner according to an example of the present disclosure includes a main body provided to generate a suction force, and a suction head connected to the main body to suck foreign substances from a cleaning surface and including a drum brush provided to be rotatable, the drum brush , a rotatable drum body, a brush provided on the outer circumference of the drum body to contact the cleaning surface, and a brush provided on the outer circumference of the drum body, disposed behind the brush based on the rotation direction of the drum brush, the drum and a supporter including a protrusion part extending in a radial direction of the body and a support part extending from the protrusion part along the circumference of the drum body to support foreign matter caught in the brush away from the drum body.

The protruding portion includes a first side facing the brush and a second side located behind the first side with respect to the rotational direction of the drum brush to define a thickness of the protruding portion, and the support portion includes a first side of the protruding portion. It may include a plate face extending rearwardly from the two sides.

The support portion of the support body may extend in a direction opposite to a rotation direction of the drum brush.

The protruding portion of the support may include a coupling rib protruding from the drum body to form a groove to which the brush is coupled, and the support portion of the support may extend from the coupling rib in a direction opposite to the rotating direction of the drum brush. there is.

The protruding portion of the support body includes a coupling rib protruding from the drum body to form a groove in which the brush is coupled, and a protruding rib extending from the coupling rib in a radial direction of the drum body, and the support portion of the support body includes: It may extend from the protruding rib in a direction opposite to the rotating direction of the drum brush.

The drum brush further includes a coupling portion including a pair of coupling ribs protruding from the drum body to form a coupling groove to which the brush is coupled, and the protruding portion of the support body is one of the pair of coupling ribs of the coupling portion. It may include a rear coupling rib located at the rear of the brush relative to the rotation direction of the drum brush.

The support may extend along the axial direction of the drum body between both ends of the drum body.

The brush may protrude further in a radial direction of the drum body than the support body.

The drum brush is provided around the brush to support foreign substances caught on the brush, and further includes a blade protruding in a radial direction of the drum body, and the support body is rearward of the blade based on a rotational direction of the drum brush. can be placed in

The support may be disposed adjacent to the blade to support the blade when the blade is deformed.

The blade may protrude more in a radial direction of the drum body than the support body.

The brush is located in the axial direction of the drum body such that a portion adjacent to the side end of the drum body is located at the rear side with respect to the rotational direction of the drum brush and a portion adjacent to the center portion of the brush is located at the front side with respect to the rotational direction of the drum body. It extends in a spiral shape along , and the protrusion of the support may extend corresponding to the shape in which the brush extends.

The support portion of the support body may correspond to a shape in which the protruding portion extends in a direction opposite to a rotation direction of the drum brush.

The support may be integrally formed with the drum body.

A vacuum cleaner according to another example of the present disclosure includes a main body provided to generate a suction force, a suction head connected to the main body to suck foreign substances from a cleaning surface, and including a drum brush provided to be rotatable in a first direction, , The drum brush is provided on the outer circumference of the drum body and the brush provided on the outer circumference of the drum body so as to contact the drum body rotatable in the first direction, the cleaning surface, and extends toward the radial direction of the drum body and a support body including a protruding portion and a support portion extending from the protruding portion in a second direction opposite to the first direction so as to support the foreign substances stuck in the brush away from the drum body.

The supporter may be disposed adjacent to the brush to support foreign matter caught in the brush.

The support may be disposed in the second direction with respect to the brush.

The protrusion includes a first side facing the brush and a second side located in the second direction with respect to the brush and defining a thickness of the protrusion, the support portion extending from the second side of the protrusion to the second side. It may include plate faces extending in two directions.

The protruding portion of the support may include a coupling rib protruding from the drum body to form a groove to which the brush is coupled, and the support portion of the support may extend from the coupling rib.

The protruding portion of the support body includes a coupling rib protruding from the drum body to form a groove in which the brush is coupled, and a protruding rib extending from the coupling rib in a radial direction of the drum body, and the support portion of the support body includes: It may extend from the protruding rib.

According to the present disclosure, foreign substances wound around the drum brush are separated from the drum body and can be easily removed from the drum brush.

1 is a diagram illustrating a vacuum cleaner according to the present disclosure.
2 is a perspective view illustrating a suction head of the cleaner shown in FIG. 1;
FIG. 3 is an exploded view showing the suction head of the vacuum cleaner shown in FIG. 2;
4 is a perspective view of a drum brush according to an embodiment of the present disclosure.
FIG. 5 is a view showing the drum body module of the drum brush shown in FIG. 4;
FIG. 6 is a view showing a brush module of the drum brush shown in FIG. 4 .
FIG. 7 is a cross-sectional view of the drum brush shown in FIG. 4 according to one embodiment.
8 is a cross-sectional view of another embodiment of the drum brush shown in FIG. 4;
9 is a perspective view of a drum brush according to another embodiment of the present disclosure.
Figure 10 is a cross-sectional view according to one embodiment of the drum brush shown in Figure 9;
11 is a cross-sectional view of the drum brush shown in FIG. 9 according to another embodiment.
FIG. 12 is a view showing the drum brush and cutter shown in FIG. 4;
Fig. 13 is a view showing the drum brush and cutter shown in Fig. 9;
14 is a cross-sectional view of a vacuum cleaner including the drum brush shown in FIG. 4;
Fig. 15 is an enlarged view of Fig. 14;

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.

Directions of front, rear, upper, lower, left, and right will be referred to as unified throughout the specification based on the directions shown in FIG. 1 of the accompanying drawings. 1, X, Y, and Z axes directions perpendicular to each other are shown. The X-axis direction means the left-right direction of the vacuum cleaner 1, and the Y-axis direction means the up-down direction of the vacuum cleaner 1. And, the Z-axis direction means the front and rear direction of the vacuum cleaner 1.

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

1 is a diagram illustrating a vacuum cleaner according to the present disclosure.

The vacuum cleaner 1 may include a body 10, a suction head 20, and an extension pipe 15 connecting the body 10 and the suction head 20.

The main body 10 supplies power to the suction force generator 11 that generates suction force, the foreign substance collection chamber 12 that separates and collects foreign substances from the sucked air, the handle 13, and the suction force generator 11. It may include a battery 14 capable of supplying.

The suction force generating device 11 may include a motor that converts electric power into mechanical rotational force, and a fan that is connected to the motor and rotates. The foreign matter collection chamber 12 may collect foreign substances through a cyclone method of separating foreign substances using centrifugal force or a dust bag method of separating foreign substances by passing air through a filtering bag. Air from which foreign substances are removed through the foreign substance collection chamber 12 may be discharged to the outside of the main body 10 .

The extension pipe 15 may be formed of a pipe having a predetermined rigidity or a flexible hose. The extension tube 15 may transfer the suction force generated through the suction force generating device 11 to the suction head 20 and guide air and foreign substances sucked through the suction head 20 to the main body 10 .

The suction head 20 is in close contact with the cleaning surface to suck in air and foreign substances on the cleaning surface. The suction head 20 may be rotatably coupled to the extension tube 15 .

2 is a perspective view illustrating a suction head of the cleaner shown in FIG. 1; FIG. 3 is an exploded view showing the suction head of the vacuum cleaner shown in FIG. 2;

Referring to FIG. 3, the suction head 20 includes a housing 30 having a suction port 37, a drum brush 100 that rotates so that foreign substances are effectively sucked into the housing 30 through the suction port 37, It may include a cutter 60 that cuts and removes foreign substances wound on the drum brush 100 from the drum brush 100, and a connector 21 that connects the housing 30 and the extension pipe 15.

The housing 30 may be formed by assembling an upper housing 32 , a lower housing 35 , a left side cover 39 , and a right side cover 40 .

An inlet 37 may be formed in the lower housing 35 . Air and foreign substances sucked into the housing 30 through the inlet 37 may be discharged to the outside of the housing 30 through the connector 21 . The inlet 37 may be formed long in the lower housing 35 along the longitudinal direction 31 of the housing 30 . The connector 21 may be formed at the center of the housing 30 in the longitudinal direction.

A connector 34 connected to the connector 21 may be formed in the upper housing 32 .

The drum brush 100 may be rotatably provided inside the housing 30 . A detailed description of the drum brush 100 will be described later.

The suction head 20 may include a driving unit that provides rotational force to rotate the drum brush 100 . The driving unit includes a motor 42 generating rotational force, a pulley 44 having a coupler 45 to which the drum brush 100 is coupled, and a belt 43 transmitting rotational force of the motor 42 to the pulley 44 can include A motor room 38 in which the motor 42 is accommodated may be formed in the housing 30 .

The suction head 20 may include a cutter 60. The cutter 60 may come into contact with foreign substances wound on the drum brush 100 to remove foreign substances from the drum brush 100 . The cutter 60 may be provided to elongate along the axial direction of the drum brush 100 . The cutter 60 may include a plurality of cutting blades 61 .

4 is a perspective view of a drum brush according to an embodiment of the present disclosure.

The drum brush 100 may include a drum body module 200 and a brush module 300 . The drum body module 200 may include a drum body 210 , a coupling part 220 , and a support body 230 .

The drum body 210 may be provided to be rotatable. The drum body 210 may be disposed inside the suction head 20 and rotate in the first direction (C). The first direction C may be a clockwise or counterclockwise direction. The drum body 210 may extend along the axial direction A of the drum brush 100 . The drum body 210 may include a through hole 212 corresponding to the axial direction. The outer circumference of the drum body 210 may include an outer surface 211 .

The brush module 300 may include a brush 310 and a blade 320 . The brush module 300 may be coupled to the drum body 210 . The brush module 300 may be inserted into the coupling groove 224 of the coupling part 220 .

The brush 310 may sweep or hit foreign substances in contact with the cleaning surface. The brush 310 may suck foreign substances on the cleaning surface into the suction head 20 . The brush 310 may be provided on the outer circumference of the drum body 210 . The brush 310 may protrude in the radial direction of the drum body 210.

The blade 320 may be provided around the brush 310 . The blade 320 may prevent or reduce foreign matter from being caught between the brushes 310 . The blade 320 may support foreign matter caught on the brush 310 . The blade 320 may be formed of a rubber material.

The blade 320 may be provided on the outer circumference of the drum body 210 . The blade 320 may protrude in the radial direction of the drum body 210 . The brush 310 may protrude further in the radial direction of the drum body 210 than the blade 320 . That is, the protruding height of the blade 320 is set smaller than the protruding height of the brush 310, so that the brush 310 does not interfere with the cleaning surface, the blade 320 may not contact the cleaning surface.

The support 230 may support the foreign substances caught on the brush 310 by separating them from the drum body 210 . The support 230 is disposed adjacent to the brush 310 to prevent foreign substances from penetrating deeply into the brush 310 . The support 230 can prevent foreign matter caught in the brush 310 from being tightly wound on the outer surface 211 of the drum body 210 . The support 230 is disposed adjacent to the brush module 300 to prevent the brush module 300 from bending. Specifically, the support 230 may be disposed adjacent to the blade 230 to support the blade 230 when the blade 230 is bent in the opposite direction to the rotation direction C of the drum brush 100.

That is, the support 230 supports the foreign matter so that the foreign matter is not entangled in the brush 310 or adhered to the outer surface 211 of the drum body 210, so that the foreign matter is lifted from the drum brush 100 and can be easily removed. make it possible

The support 230 may be provided on the outer circumference of the drum body 210 . The support 230 may be provided on the outer surface 211 of the drum body 210 . The support 230 may extend along the axial direction A of the drum body 210 between both ends of the drum body 210 . The support 230 may protrude toward the radial direction of the drum body 210 . The support 230 may extend along the circumference of the drum body 210 .

The brush module 300 may be coupled to the coupler 220 . The brush 310 and/or the blade 320 may be coupled to the coupling part 220 . The coupling part 220 may be provided on the outer circumference of the drum body 210 .

The drum body 210 according to this drawing may include a hexagonal columnar shape, the cross section of the drum body 210 is a hexagon, and the outer surface 211 provided on the outer circumference of the drum body 210 includes a plane. Although shown as such, the present disclosure is not limited thereto. For example, the drum body 210 may have a cylindrical shape or a polygonal shape. That is, the cross section of the drum body 210 may be circular or polygonal, and the outer surface 211 of the drum body 210 may include a curved surface.

In the brush 310 according to the present drawing, a portion adjacent to the side end of the drum body 210 is located on the rear side with respect to the rotation direction of the drum brush 100, and a portion adjacent to the central portion is located on the front side relative to the rotation direction. It may extend in a spiral shape along the axial direction of the drum body 210 to do so. That is, the brush 310 may be provided in a substantially 'V' shape to transfer foreign substances to the center of the drum brush 100 when the drum brush 100 rotates.

The blade 320 to which the brush 310 is coupled may also extend to correspond to the shape of the brush 310 . That is, the brush module 300 may extend in the spiral shape, and the coupling portion 220 to which the brush module 300 is coupled may also extend to correspond to the shape of the brush module 300 .

The protrusion 240 of the support 230 may extend to correspond to the shape of the brush module 300 . The support portion 250 of the support body 230 may correspond to the shape of the protruding portion 240 and may extend in a direction opposite to the rotation direction C of the drum brush 100 .

FIG. 5 is a view showing a drum body module of the drum brush shown in FIG. 4 . The drum body module 200 may include a drum body 210 , a coupling part 220 , and a support body 230 .

The support body 230 may be provided in plurality. The support 230 may include a protrusion 240 and a support 250 . The protrusion 240 may extend in the radial direction of the drum body 210 . The protrusion 240 may protrude from the outer surface 211 of the drum body 210 . The protrusion 240 may extend along the length of the drum body 210 between both ends of the drum body 210 .

The support part 250 may extend along the circumference of the drum body 210 from the protruding part 240 . The support part 250 may be provided to have a cross section with a larger area than the cross section of the protruding part 240 based on the radial direction of the drum brush 100 . That is, the support part 250 may extend longer than the protruding part 240 along the circumference of the drum body 210 .

The support part 250 may include a plate surface 251 .

The protrusion 240 is located behind the first side 245a facing the brush 310 and the first side 245 with respect to the rotation direction C of the drum brush 100, and the thickness of the protrusion 240 ( d) may include a second side 246 defining. The plate face 251 may extend rearwardly from the second side 246 of the protrusion 240 . That is, the plate surface 251 may extend longer than the length of the protrusion 240 extending along the circumference of the drum body 210 (the thickness of the protrusion may be t). The plate surface 251 may extend longer in the second direction than the length of the protrusion 240 extending in the second direction opposite to the first direction C.

The plate surface 251 may be located on the opposite side of the surface on which the support part 250 faces the drum body 210 . The plate surface 251 may come into contact with foreign substances caught in the brush 310 and support the foreign substances. The plate surface 251 may be spaced apart from the outer surface 211 of the drum body 210 by the protrusion 240 .

The plate surface 251 may extend from the protrusion 240 in a tangential direction of the drum body 210 . That is, with respect to the through hole 212 of the drum body 210, the direction in which the plate surface 251 extends along the circumference of the drum body 210 may correspond to the tangential direction of the through hole 212.

The plate surface 251 may include a curved surface. Therefore, when the plate surface 251 contacts the cleaning surface, rotational load can be minimized.

Rotation trajectories of both ends 252a and 252b of the plate surface 251 may correspond to circles. Specifically, both ends 252a and 252b adjacent to the side ends of the drum body 210 of the plate surface 251 may be formed to rotate in a circle.

일 때, 플레이트면(251)의 끝단(252a, 252b)의 회전 둘레가 31

가 되도록 마련될 수 있다. 즉, 플레이트면(251)의 폭은 약 6~7mm 로 마련될 수 있다. 다만, 본 개시는 상기 수치에 한정되지 않는다.The length that the plate surface 251 of the support part 250 extends along the circumference of the drum body 210, that is, the width of the plate surface 251, the rotational circumference of the brush module 300 is 32.5

When , the rotation circumference of the ends 252a and 252b of the plate surface 251 is 31

It can be arranged to become. That is, the plate surface 251 may have a width of about 6 to 7 mm. However, the present disclosure is not limited to the above numerical values.

The length of the support part 250 in the axial direction A of the drum body 210 may correspond to the length of the protrusion 240 in the axial direction A of the drum body 210 .

The coupling part 220 may include a pair of coupling ribs 222 and 223 and a coupling groove 224 .

A pair of coupling ribs 222 and 223 may be provided protruding from the outer circumference of the drum body 210 . A pair of coupling ribs 222 and 223 may be spaced apart from each other on the outer surface 211 of the drum body 210 . The pair of coupling ribs 222 and 223 may extend along the length of the drum body 210 in the axial direction A. A pair of coupling ribs 222 and 223 may be provided symmetrically with each other.

The coupling ribs 222 and 223 may include a first part 221a and a second part 221b. The first portion 221a may protrude from the outer surface 211 of the drum body 210 toward the radial direction of the drum body 210 . The second portion 221b may extend from the first portion 221a. The second portion 221b of any one of the pair of coupling ribs 222 and 223 may extend in a direction toward the other adjacent coupling ribs 222 and 223 .

A pair of coupling ribs 222 and 223 may form a coupling groove 224 . The coupling groove 224 may be provided as a concave groove toward the outer surface 211 of the drum body 210 . The outer surface 211 of the drum body 210 may form the lower surface 224a of the coupling groove 224 . A side surface of the pair of coupling ribs 222 and 223 facing each other may form a side surface 224b of the coupling groove 224 . The brush module 300 may be inserted into the coupling groove 224 .

The pair of coupling ribs 222 and 223 may include a front coupling rib 222 and a rear coupling rib 223 . When the brush module 300 is inserted into the coupling groove 224, the front coupling rib 222 is in front of the brush module 300 with respect to the rotation direction C of the drum brush 100, and the brush module 300 At the rear of the rear coupling rib 223 may be disposed. That is, when the drum brush 100 rotates in the first direction (C), the rear coupling rib 223 may be disposed in the second direction of the coupling groove 224 among the pair of coupling ribs 222 and 223. there is.

The support 230 may include a protrusion 240 and a support 250 . The protrusion 240 may include coupling ribs 222 and 223 . The coupling ribs 222 and 223 may be any one of a pair of coupling ribs 222 and 223 of the coupling part 220 . The coupling ribs 222 and 223 may be rear coupling ribs 223 of the pair of coupling ribs 222 and 223 .

The support part 250 may extend from the coupling ribs 222 and 223 . The support part 250 may extend from the rear coupling rib 223 .

The drum body module 200 may be integrally injection molded. That is, the drum body 210, the coupling part 220, and the support 230 may be integrally formed. The drum body module 200 may be made of a plastic material.

The support part 250 may be made of a rubber material. That is, the drum body 210, the coupling part 220, and the support 230 may be formed of a plastic material, and the support part 250 may be formed of a rubber material by an insert molding method.

The drum body 210, the coupling part 220, and the protrusion 240 of the support 230 may be integrally injection molded, and the support 250 of the support 230 may be molded as a separate structure. In this case, the support part 250 may be coupled to the protruding part 240 of the drum body module 200 .

FIG. 6 is a view showing a brush module of the drum brush shown in FIG. 4 .

The drum brush 100 may include a brush module 300 . The brush module 300 may include a brush 310 and a blade 320 .

The brush 310 may include a brush band 311 and a plurality of brush bristles 312 . The brush band 311 may extend between both ends of the drum body 210 in the axial direction. The brush band 311 may have a plate shape.

The brush bristles 312 may protrude from the brush band 311 toward the radius of the drum body 210 . The brush bristles 312 may be provided near the center of the brush band 311 based on the short side of the brush band 311 . A plurality of brush bristles 312 may be provided, and the plurality of brush bristles 312 may be formed to be spaced apart from each other at predetermined intervals along the brush band 311 . The brush bristles 312 may be made of a nylon material.

The blade 320 may include a blade body 323, a blade base 321, and an installation groove 322.

The blade base 321 may be provided below the blade body 323 . The blade base 321 may support the blade body 323 . The blade base 321 may be provided to surround the brush band 311 . The blade base 321 may form an installation groove 322 . The installation groove 322 may be formed to extend between both ends of the blade base 321 in the longitudinal direction. The installation groove 322 may be provided to correspond to the shape of the brush band 311 .

The blade base 321 may be provided to correspond to the length of the coupling groove 224 in the axial direction of the drum body 210 . The blade base 321 may be inserted into the coupling groove 224 .

The blade body 323 may extend from the blade base 321 toward the radius of the drum body 210 . The blade body 323 may protrude from the blade base 321 . The blade body 323 may be disposed parallel to a direction in which the plurality of brush bristles 312 extend along the axial direction of the drum body 210 . The blade body 323 may be provided on top of the blade base 321 .

The brush module 300 may be prepared by assembling the blade 320 and the brush 310 by inserting the brush band 311 of the brush 310 into the installation groove 322 of the blade 320 .

Next, the brush module 300 may be mounted on the drum body 210 by inserting the blade base 321 of the blade 320 into the coupling groove 224 formed on the outer circumference of the drum body 210 .

FIG. 7 is a cross-sectional view of the drum brush shown in FIG. 4 according to one embodiment.

The protrusion 240 of the support 230 may include coupling ribs 222 and 223 .

The support 230 may be disposed behind the brush module 300 based on the rotation direction C of the drum brush 100 . That is, the support 230 may be disposed in a second direction opposite to the first direction C in which the drum brush 100 rotates with respect to the brush 310 . The protrusion 240 of the support body 230 may include a rear coupling rib 223, and the support portion 250 of the support body 230 extends from the rear coupling rib 223 to the rotation direction C of the drum brush 100. and may extend in the opposite direction.

That is, since the support 230 is disposed behind the brush module 300, the support 230 can approach the cleaning surface after the brush module 300 first contacts the cleaning surface when the drum brush 100 rotates. . Since the brush module 300 contacts the cleaning surface first, damage to the cleaning surface can be prevented, and the support 230 can support foreign substances picked up by the brush module 300 . In addition, as the drum brush 100 rotates, the brush module 300 contacts the cleaning surface and can be bent in the opposite direction to the rotation direction C of the drum brush 100, that is, toward the rear of the brush module 300. , At this time, the support 230 supports the brush module 300 to minimize deformation of the brush module 300 .

Also, referring to FIGS. 12 and 13 , a cutter 60 may be disposed behind the drum brush 100 . The support 230 is disposed at the rear of the brush module 300, so as the drum brush 100 rotates, the support 230 first faces the cutter 60, and then the brush module 300 moves along the cutter 60. may come into contact with That is, since the support 230 approaches the cutter 60 before the brush module 300, the cutting effect of the foreign matter lifted by the support 230 can be improved. In addition, it is possible to reduce noise and minimize damage to the cutter 60 due to rotation of the drum brush 100 .

The brush 310 may protrude further in the radial direction of the drum body 210 than the support 230 . The blade 320 may protrude more in the radial direction of the drum body 210 than the support 230 . That is, since the support 230 is provided lower than the brush module 300 in the radial direction of the drum body 210, it may not come into contact with the cleaning surface or the cutter 60.

8 is a cross-sectional view of another embodiment of the drum brush shown in FIG. 4; Description overlapping with FIG. 7 will be omitted.

The protruding portion of the support 230 may include coupling ribs 222 and 223 and a protruding rib 242 . The protruding rib 242 may extend in the radial direction of the drum body 210 from the coupling ribs 222 and 223 . The protruding rib 242 may protrude from the second portion 221b of the coupling ribs 222 and 223 . The protruding rib 242 may extend from the second portion 221b of the rear coupling rib 223 .

The support portion 250 of the support body 230 may extend from the protruding rib 242 in a direction opposite to the rotation direction C of the drum brush 100 .

A front coupling rib 222 is disposed at the front of the brush module 300, and a support 230, that is, a rear coupling rib 223, a protruding rib 242, and a support 250 are disposed at the rear of the brush module 300. can be placed. Since the support body 230 protrudes further in the radial direction of the drum body 210 than the front coupling rib 222, when the brush module 300 is bent toward the rear, it supports the brush module 300 so that the brush module 300 ) can be prevented. In addition, foreign substances caught in the brush bristles 312 can be supported while being further separated from the drum body 210 .

9 is a perspective view of a drum brush according to another embodiment of the present disclosure. A description overlapping with those of FIGS. 4 to 6 will be omitted.

The drum body 210a may have a cylindrical shape, the cross section of the drum body 210a may be circular, and the outer surface 211a provided around the outer circumference of the drum body 210a may include a curved surface.

The brush 310a may be provided in a spiral shape with respect to the axial direction A of the drum body 210a. The brush 310a may spirally extend across the circumference of the drum body 210a along the length direction of the drum body 210a.

The blade 320a to which the brush 310a is coupled may also extend to correspond to the shape of the brush 310a. That is, the brush module 300a may extend in the spiral shape, and the coupling portion 220a to which the brush module 300a is coupled may also extend to correspond to the shape of the brush module 300a.

The protrusion 240a of the support 230a may extend to correspond to the shape of the brush module 300a. The support portion 250a of the support body 230a may correspond to the shape of the protruding portion 240a and may extend in a direction opposite to the rotational direction C of the drum brush 100a.

Figure 10 is a cross-sectional view according to one embodiment of the drum brush shown in Figure 9;

The drum brush 100a may include a coupling portion 220a, and the coupling portion 220a may include a pair of coupling ribs 222a and 223a and a coupling groove 224a. The pair of coupling ribs 222a and 223a may include a front coupling rib 222a and a rear coupling rib 223a.

The drum brush 100a may include a support 230a, and the support 230a may include a protrusion 240a and a support 250a. The protrusion 240a may include a rear coupling rib 223a. The protruding portion 240a may include a protruding rib 242a protruding from the rear coupling rib 223a. The support part 250a may include a supporter 230a extending from the protruding rib 242a in a direction opposite to the rotation direction C of the drum body 210a.

In this drawing, the protruding portion 240a has been illustrated as including both the rear coupling rib 223a and the protruding rib 242a as an example, but the present disclosure is not limited thereto. For example, the protrusion 240a may include only the rear coupling rib 223a.

11 is a cross-sectional view of the drum brush shown in FIG. 9 according to another embodiment.

The support 230a may be disposed between the plurality of couplers 220a. That is, the protruding part 240a may also be disposed between the plurality of coupling parts 220a.

The support 230a may include a first support 231 and a second support 232 . The protrusion 240a of the first support 231 includes coupling ribs 222a and 223a. The protrusion 240a of the second support 232 does not include the connecting ribs 222 and 223 . The first support 231 may be disposed adjacent to the brush module 300a. The second support 232 may be disposed between the plurality of brush modules 300a. The second support 232 may be disposed between the plurality of couplers 220a.

Depending on the size or shape of the drum body 210a, the configuration of the second supporter 232 may be added, and the number of the first supporter 231 and the second supporter 232 may be adjusted.

FIG. 12 is a view showing the drum brush and cutter shown in FIG. 4; Fig. 13 is a view showing the drum brush and cutter shown in Fig. 9;

The drum brushes 100 and 100a and the cutter 60 may be disposed adjacent to each other. The cutter 60 may be disposed behind the drum brushes 100 and 100a.

The supports 230 and 230a and the cutter 60 may be spaced apart from each other. Specifically, the cutter 60 may be spaced apart from the plate surfaces 251 and 251a of the support parts 250 and 250a by a predetermined distance. The cutter 60 may be placed in contact with the brush bristles 312 and 312a.

The cutter 60 may be caught in the brush bristles 312 and 312a and contact foreign substances supported by the plate surfaces 251 and 251a. The plurality of cutting blades 61 of the cutter 60 can cut the foreign substances and remove them from the drum brushes 100 and 100a.

14 is a cross-sectional view of a vacuum cleaner including the drum brush shown in FIG. 4; Fig. 15 is an enlarged view of Fig. 14;

A cleaning process of the vacuum cleaner 1 will be described as follows. The brush 310 coupled to the rotating drum body 210 may contact the cleaning surface and pick up foreign substances. The blade 320 and/or the support 230 may prevent foreign matter from penetrating into the lower portion of the brush 310 .

Foreign substances caught in the brush 310 may be wound around the outer surface 211 of the drum body 210 as the drum body 210 rotates. ) can be spaced apart from That is, the foreign matter can maintain a lifted state from the outer surface 211 of the drum body 210 by being supported by the support part 250 of the support body 230 .

The support part 250 may include the plate surface 251, and the foreign matter may be spaced apart from the drum body 210 and maintained in a lifted state by crossing the end of the plate surface 251 from the brush 310. That is, since the plate surface 251 extends to a predetermined width, an area in which foreign substances are lifted from the drum body 210 can be widened. Therefore, the contact area of the foreign matter with the cutter 60 may be widened. Foreign substances in contact with the cutter 60 may be cut by the cutting blade 61, removed from the drum brush 100, and sucked into the connector 34.

In addition, the foreign substances lifted by the support 230 may be lifted in the radial direction of the drum body 210 by centrifugal force according to the rotation of the drum brush 100, and at this time, they can be easily removed from the drum brush 100. can

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. .

1 vacuum cleaner
10 body
20 suction head
60 cutter
100 drum brush
210 drum body
220 junction
221 Coupling Rib
223 rear coupling rib
224 coupling groove
230 support
240 protrusion
242 protruding rib
250 support
251 plate side
310 brush
320 blade

Claims (20)

a main body provided to generate a suction force;
A suction head connected to the main body to suck foreign substances from the cleaning surface and including a drum brush rotatably provided,
The drum brush,
rotatable drum body;
A brush provided on the outer circumference of the drum body to contact the cleaning surface; and
Provided on the outer circumference of the drum body, disposed at the rear of the brush based on the rotation direction of the drum brush, and extending in the radial direction of the drum body and foreign substances caught in the brush away from the drum body A vacuum cleaner comprising: a support member including a support portion extending along the circumference of the drum body from the protruding portion so as to be supported by the drum body. According to claim 1,
The protrusion includes a first side facing the brush and a second side located behind the first side with respect to the rotational direction of the drum brush and defining a thickness of the protrusion,
The vacuum cleaner of claim 1 , wherein the support portion includes a plate surface extending rearwardly from the second side of the protruding portion. According to claim 1,
The support portion of the support body extends in a direction opposite to a rotation direction of the drum brush. According to claim 3,
The protruding portion of the support includes a coupling rib protruding from the drum body to form a groove in which the brush is coupled,
The support portion of the support body extends from the coupling rib in a direction opposite to the rotation direction of the drum brush. According to claim 3,
The protruding portion of the support includes a coupling rib protruding from the drum body to form a groove in which the brush is coupled, and a protruding rib extending from the coupling rib in a radial direction of the drum body,
The vacuum cleaner of claim 1 , wherein the support portion of the support body extends from the protruding rib in a direction opposite to a rotation direction of the drum brush. According to claim 1,
The drum brush further includes a coupling portion including a pair of coupling ribs protruding from the drum body to form a coupling groove to which the brush is coupled,
The protruding portion of the support body includes a rear coupling rib positioned at a rear side of the brush with respect to a rotational direction of the drum brush among the pair of coupling ribs of the coupling portion. According to claim 1,
The vacuum cleaner of claim 1 , wherein the support extends between both ends of the drum body along an axial direction of the drum body. According to claim 1,
The brush is more protruding in a radial direction of the drum body than the support body. According to claim 1,
The drum brush further includes a blade provided around the brush to support foreign substances caught on the brush and protruding in a radial direction of the drum body,
The supporter is disposed behind the blade based on the rotation direction of the drum brush. According to claim 9,
The vacuum cleaner of claim 1 , wherein the support is disposed adjacent to the blade to support the blade when the blade is deformed. According to claim 9,
The blade protrudes further in the radial direction of the drum body than the support body. According to claim 1,
The brush is located in the axial direction of the drum body so that a portion adjacent to the side end of the drum body is located at the rear side with respect to the rotational direction of the drum brush and a portion adjacent to the central portion of the brush is located at the front side with respect to the rotational direction of the drum body. It extends in a spiral shape along
The vacuum cleaner of claim 1 , wherein the protruding portion of the support body extends to correspond to a shape in which the brush extends. According to claim 12,
The vacuum cleaner of claim 1 , wherein the support portion of the support body corresponds to a shape in which the protruding portion extends in a direction opposite to a rotation direction of the drum brush. According to claim 1,
The vacuum cleaner wherein the support is integrally formed with the drum body. a main body provided to generate a suction force;
A suction head connected to the main body to suck foreign substances from the cleaning surface and including a drum brush provided to be rotatable in a first direction; includes,
The drum brush,
a drum body rotatable in the first direction;
A brush provided on the outer circumference of the drum body to contact the cleaning surface; and
A protrusion provided on the outer circumference of the drum body and extending in a radial direction of the drum body, and a second direction opposite to the first direction from the protrusion to support the foreign matter caught in the brush by separating it from the drum body A vacuum cleaner comprising a; support body including a support portion extending to the . According to claim 15,
The vacuum cleaner of claim 1 , wherein the supporter is disposed adjacent to the brush to support foreign matter caught in the brush. According to claim 16,
The support is disposed in the second direction with respect to the brush. According to claim 15,
the protrusion includes a first side facing the brush and a second side positioned in the second direction with respect to the brush and defining a thickness of the protrusion;
The vacuum cleaner of claim 1 , wherein the support portion includes a plate surface extending in the second direction from the second side of the protruding portion. According to claim 15,
The protruding portion of the support includes a coupling rib protruding from the drum body to form a groove in which the brush is coupled,
The support portion of the support body extends from the coupling rib. According to claim 1,
The protruding portion of the support includes a coupling rib protruding from the drum body to form a groove in which the brush is coupled, and a protruding rib extending from the coupling rib in a radial direction of the drum body,
The support portion of the support body extends from the protruding rib.

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