KR20200117361A - Cleaner and a method of manufacturing a brush drum of a cleaner - Google Patents

Abstract

The present invention relates to a cleaner to perform cleaning while a brush head is closely attached to a surface to be cleaned and a method for manufacturing a brush drum thereof. According to the present invention, the cleaner comprises: a main body; a brush head connected to the main body by a connection tube and including a suction hole; and a brush drum rotationally installed in the brush head. The brush drum comprises: a shaft unit rotationally installed in the brush head; a cylindrical elastic member disposed to cover the outer circumferential surface of the shaft unit; a brush disposed in a cylindrical shape to cover the outer circumferential surface of the elastic member and made of flannel; a pair of brackets assembled at both ends of the shaft unit and allowing the shaft unit to be rotationally installed in the brush head; and a handle unit detachably installed in the brush head and allowing one of the pair of brackets to be detachably installed therein.

Description

Cleaner and method of manufacturing brush drum for vacuum cleaner {CLEANER AND A METHOD OF MANUFACTURING A BRUSH DRUM OF A CLEANER}

The present invention relates to a cleaner capable of performing cleaning without lifting a brush head even if a large foreign substance exists on a surface to be cleaned, and to a method for manufacturing a brush drum of the cleaner.

In general, a vacuum cleaner is a device that sweeps or scatters foreign substances such as dust or hair existing in a cleaning space, and inhales foreign substances such as scattered dust or hair by a suction force to clean an area to be cleaned.

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

The brush drum includes a drum base formed of hard metal or plastic, and a brush formed of soft fibrous hair having a predetermined length on the outer peripheral surface of the drum base.

When foreign matter such as dust or hair in the cleaning space is scattered by the rotation of the brush drum, the scattered foreign matter such as dust or hair is sucked into the suction port by the suction force generated inside the body, and the sucked foreign matter moves to the dust bin. do.

If there is a large amount of foreign matter in the cleaning space, the front part of the brush head is momentarily lifted due to the foreign matter coming into contact with the drum base during the cleaning process, and the internal vacuum level may be lowered, or the foreign matter may not be sucked and pushed forward.

In addition, there may be a phenomenon in which the brush head is lifted and large foreign substances enter the suction port inside the brush head at a time and the suction port is blocked.

An aspect of the present invention provides a cleaner and a method for manufacturing a brush drum of the cleaner, in which the brush drum includes an elastic member that is elastically deformed to maintain a brush head in close contact with a surface to be cleaned and perform cleaning.

A cleaner according to an embodiment of the present invention includes a main body, a brush head connected to the main body by a connection pipe, and a brush head having a suction port, and a brush drum rotatably mounted to the brush head, wherein the brush drum comprises: A shaft unit rotatably mounted to the head, a cylindrical elastic member provided to surround the outer circumferential surface of the shaft unit, a brush provided in a cylindrical shape to surround the outer circumferential surface of the elastic member, a brush formed of villi, and the amount of the shaft unit A pair of brackets that are assembled at the ends, the shaft unit is rotatably mounted to the brush head, and a handle unit detachably mounted to the brush head, and one of the pair of brackets is detachably mounted. Include.

The shaft unit may include a shaft formed of a rigid body and a cylindrical pipe in which the shaft is accommodated.

The shaft and the pipe may be provided integrally.

The shaft and the pipe may be separately provided and assembled.

The elastic member may be formed of a sponge.

The elastic member is provided in a cylindrical shape to surround the outer circumferential surface of the shaft unit, a second rubber provided in a cylindrical shape having a diameter larger than that of the first rubber, and provided with a material having elasticity, the first rubber and It may include a plurality of ribs connecting between the second rubber.

The elastic member may be formed of plastic made of an elastic material having a mesh shape.

The pair of brackets are assembled at one end of the shaft unit and include a first bracket that receives a driving force from a driving motor to rotate the shaft unit, and a second bracket that is assembled at the other end of the shaft unit and provided with the handle unit. Can include.

The first bracket may include a first cap that covers one end of the shaft unit, and a coupling that transmits a driving force of the driving motor to the shaft unit so that the shaft unit is rotatable.

The second bracket may include a second cap for covering the other end of the shaft unit, a bearing for rotatably coupling the other end of the shaft unit, and a bush to which the handle unit is detachably mounted.

The handle unit is rotatably provided on the handle unit so that the handle unit is detachably mounted to the brush head, a plurality of fixing members fixing the position of the handle unit, and the bush is detachable. It may include a mounting hole to be mounted.

The hook member may include a hinge rotatably mounted to the brush head, and a hook that is rotated by the hinge to be hooked and released from the brush head.

The brush head may include a coupling fixing part to which the coupling is fixed and connected by a belt to the driving motor and rotated together with the coupling by a driving force of the driving motor.

The brush head may include a locking protrusion through which the hook is engaged and released, and a plurality of fixing grooves through which the plurality of fixing members are fixed.

In the method for manufacturing a brush drum for a cleaner according to an embodiment of the present invention, a brush having a cylindrical shape is manufactured by facing each end of a fabric with villi on a wide fibrous layer, and then turning the villi to be exposed to the outside. The elastic members of the cylinder surround the outer peripheral surface of the shaft unit having a cylindrical shape, the elastic member surrounding the outer peripheral surface of the shaft unit is inserted into the inside of the brush, and both ends of the brush are placed at both ends of the elastic member. Bonding, and assembling brackets at both ends of the shaft unit.

The elastic member may surround the outer peripheral surface of the shaft unit by insert injection molding.

After the shaft unit is inserted into the elastic member, it may be bonded so that the elastic member surrounds the outer peripheral surface of the shaft unit.

After extending the inner diameter of the brush by inserting a jig into the brush, the elastic member surrounding the outer circumferential surface of the shaft unit is inserted into the brush, and the jig may be removed.

After reducing the outer diameter of the elastic member by inserting the elastic member surrounding the outer circumferential surface of the shaft unit into the jig, inserting the elastic member surrounding the outer circumferential surface of the shaft unit into the brush, and then inserting the jig Can be removed.

After bonding both ends of the brush to both ends of the elastic member, a sealant may be applied to seal the brush.

According to embodiments of the present invention, even if a large foreign substance exists on the surface to be cleaned, the brush head can be cleaned without lifting during the cleaning process.

1 is a perspective view of a cleaner according to an embodiment of the present invention.
2 is a view showing a separate configuration of a part of the cleaner according to an embodiment of the present invention.
FIG. 3 is a view showing a partial configuration of the cleaner shown in FIG. 2 from a different angle.
4 is a view showing a state in which the brush drum according to an embodiment of the present invention is mounted on the brush head.
5 is a cross-sectional view showing a state in which a brush drum according to an embodiment of the present invention is mounted on a brush head.
6 is a view showing an exploded state of the brush drum according to an embodiment of the present invention.
7 is a view showing a state in which the brush drum according to an embodiment of the present invention is coupled to the brush head.
Figure 8 is a view showing Figure 7 from a different angle.
9 is a view showing a state in which the handle unit is separated from the brush head by pressing the hook member of the handle unit according to an embodiment of the present invention.
10 is a cross-sectional view showing a state in which the hook is released from the locking projection by pressing the hook member of the handle unit.
11 is a view showing a state in which the brush drum including the handle unit according to an embodiment of the present invention is separated from the brush head.
12 is a view showing a state in which foreign matter having a size larger than the length of the villi of the brush exists on the surface to be cleaned according to an embodiment of the present invention.
13 is a view showing a state in which the elastic member is elastically deformed by the foreign material when the brush drum in FIG. 12 cleans the foreign material.
14 is a view showing an elastic member of the brush drum according to another embodiment of the present invention.
15 is a view showing an elastic member of the brush drum according to another embodiment of the present invention.
16 is a view showing a state in which the villi are turned over so that the villi are exposed to the outside after sewing both ends of the fabric with villi hairs on a wide fiber layer according to an embodiment of the present invention.
17 is a view showing a cylindrical brush inverted so that the villi are exposed to the outside in FIG. 16;
18 is a view showing a state in which a jig according to an embodiment of the present invention is inserted into the brush to expand the inner diameter of the brush.
19 is a view showing a state in which the elastic member surrounding the outer circumferential surface of the shaft unit is inserted into the brush having an expanded inner diameter according to an embodiment of the present invention.
20 is a view showing a state in which a jig is removed after inserting an elastic member surrounding an outer circumferential surface of a shaft unit into a brush according to an embodiment of the present invention.
21 is a view showing a state of assembling brackets at both ends of the shaft unit according to an embodiment of the present invention.
22 is a view showing a state in which the outer diameter of the elastic member is reduced by inserting the elastic member surrounding the outer circumferential surface of the shaft unit into the jig according to another embodiment of the present invention.
23 is a view showing a state in which an elastic member having a reduced outer diameter is inserted into a brush according to another embodiment of the present invention.
24 is a view showing a state in which a jig is removed after inserting an elastic member having a reduced outer diameter into the inside of a brush according to another embodiment of the present invention.

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

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

In addition, terms used in the present specification are used to describe the embodiments, and are not intended to limit and/or limit the disclosed invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present specification, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features It does not preclude the presence or addition of elements, numbers, steps, actions, components, parts, or combinations thereof.

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

Meanwhile, the terms “front”, “rear”, “front”, “rear”, “upper”, “lower”, “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.

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

In the following description, the front side refers to the direction toward the front side with respect to the main body of the cleaner, the upper side refers to the upper direction with respect to the main body of the cleaner, and the lower side refers to the lower direction with respect to the body of the cleaner. .

1 is a perspective view of a cleaner according to an embodiment of the present invention, FIG. 2 is a view showing a part of the vacuum cleaner according to an embodiment of the present invention separately, and FIG. It is a diagram showing the configuration from a different angle.

The cleaner may include a main body 10, a brush head 30 connected to the main body 10 by a connector 20, and a brush drum 100 rotatably mounted on the brush head 30. .

The main body 10 may include dust collecting devices 40 and 50 detachably coupled to the main body 10 and a motor (not shown) provided to generate a suction force. The motor may be disposed inside the motor housing 60.

The dust collecting devices 40 and 50 may be configured to separate and store dust or foreign matter contained in the air flowing into the inlet 51 by being disposed upstream of the air flow rather than the motor. The dust collecting devices 40 and 50 are configured to separate dust or foreign substances contained in the air introduced through the inlet 31 of the brush head 30, and the dust separator 40 It may include a dust bin 50 provided to store separated dust or foreign matter (see FIG. 4).

As shown in FIGS. 1 to 3, the dust collectors 40 and 50 may be detachably coupled to the main body 10.

The dust bin 50 may include an inlet 51 through which air sucked into the inlet 31 of the brush head 30 is introduced. (See FIG. 4). The dust bin 50 slides on the main body 10. It may include a protrusion housing 52 and a sliding protrusion 53 provided to be coupled or fitted.

The main body 10 may include a handle 11 so that the user can grip and operate the cleaner. The user can hold the handle 11 and move the cleaner in the front and rear direction.

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

The body 10 may include a battery 13. The battery 13 may be detachably coupled to the body 10. Accordingly, after the battery 13 is used up, it is possible to increase the operation time of the cleaner by replacing it with the previously charged battery 13. Alternatively, the battery 13 may be provided integrally with the main body 10.

The body 10 may include a filter housing 15. The filter housing 15 may be provided in an approximately donut shape to accommodate a filter (not shown) therein. There is no limitation on the type of filter, but as an example, a Hepa Filter may be disposed in the filter housing 15. The filter (not shown) may filter ultrafine dust that is not filtered by the dust separation device 40. The filter housing 15 may include a plurality of holes 16 so that air that has passed through the filter is discharged to the outside of the cleaner.

The main body 10 may include a dust collecting device coupling part 17 provided to couple the dust collecting devices 40 and 50 to the main body 10.

The body 10 may include a connection pipe coupling portion 14. The connector coupling portion 14 may be provided to separate the connector 20 from the body 10 or couple to the body 10.

The dust separation device 40 may include a button 41. The button 41 may be configured to separate the dust collecting devices 40 and 50 from the main body 10 or be coupled to the main body 10. In addition, the button 41 may be configured to separate the dust bin 50 from the dust separation device 40 or couple to the dust separation device 40 when the dust collecting devices 40 and 50 are separated from the main body 10. have.

The brush head 30 may be connected to the body 10 by a connection pipe 20. The brush drum 100 may be rotatably mounted on the brush head 30. The brush head 30 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 through the suction port 31 (see FIG. 4).

4 is a view showing a state in which the brush drum according to an embodiment of the present invention is mounted on the brush head.

As shown in FIG. 4, the brush head 30 includes a suction port 31 for sucking foreign substances such as dust present on the surface to be cleaned, and a driving motor for rotating the brush drum 100 mounted on the brush head 30 (32) may be included.

The driving motor 32 may be provided inside the brush head 30. The driving motor 32 may be connected to the coupling fixing part 34 by a belt 33. The coupling fixing part 34 may be fixed to the coupling 143 of the first bracket 141 to be described below. The driving force of the driving motor 32 is transmitted to the coupling fixing part 34 through the belt 33, and the coupling fixing part 34 and the coupling 143 rotate together to rotate the brush drum 100. Can (see Fig. 5)

5 is a cross-sectional view showing a state in which a brush drum according to an embodiment of the present invention is mounted on a brush head, and FIG. 6 is a view showing an exploded state of the brush drum according to an embodiment of the present invention. 7 is a view showing a state in which another brush drum is coupled to the brush head according to an embodiment of the present invention, and FIG. 8 is a view showing FIG. 7 from a different angle.

5 to 8, the brush drum 100 has a cylindrical shape provided to surround the shaft unit 110 rotatably mounted on the brush head 30 and the outer circumferential surface of the shaft unit 110. The elastic member 120, the brush 130 provided in a cylindrical shape to surround the outer circumferential surface of the elastic member 120 and formed of villi, a pair of brackets 140 assembled at both ends of the shaft unit 110, and , It may include a handle unit 150 detachably mounted on one of the pair of brackets 140.

The shaft unit 110 may include a shaft 111 formed of a rigid body and a cylindrical pipe 113 in which the shaft 111 is accommodated. The shaft 111 and the pipe 113 may be provided integrally. In addition, in another embodiment, the shaft 111 and the pipe 113 may be separately provided and assembled.

The elastic member 120 may be provided with a sponge 121 having a cylindrical shape. The elastic member 120 is provided to surround the outer circumferential surface of the shaft unit 110 so that when a large foreign material exists on the surface to be cleaned, the elastic member 120 is elastically deformed to prevent the brush head 30 from being lifted by the large foreign material. .

The brush 130 may be provided in a cylindrical shape to surround the outer circumferential surface of the elastic member 120. The brush 130 may be formed by implanting villi on a wide fiber layer. During cleaning, the brush 130 sweeps or scatters foreign substances such as dust existing on the surface to be cleaned, thereby improving the efficiency in which the foreign substances are sucked into the suction port 31.

A pair of brackets 140 may be assembled at both ends of the shaft unit 110. A pair of brackets 140 may be rotatably mounted to the brush head 30 on the shaft unit 110.

The pair of brackets 140 may include a first bracket 141 assembled at one end of the shaft unit 110 and a second bracket 144 assembled at the other end of the shaft unit 110.

The first bracket 141 is assembled at one end of the shaft unit 110 and may receive a driving force from the driving motor 32 to rotate the shaft unit 110. The first bracket 141 transmits the first cap 142 covering one end of the shaft unit 110 and the driving force of the driving motor 32 to the shaft unit 110 so that the shaft unit 110 can rotate. It may include a coupling (143). The first cap 142 may cover one end of the shaft unit 110 to prevent foreign substances or the like from flowing into the inside. The coupling 143 may be rotatably fixed to the coupling fixing part 34 of the brush head 30. When the coupling fixing part 34 is rotated by the driving motor 32, the coupling 143 may be rotated together with the coupling fixing part 34. When the coupling 143 is rotated, the shaft 111 coupled to the coupling 143 is rotated together with the coupling 143 so that the brush drum 100 may be rotated.

The second bracket 144 is assembled to the other end of the shaft unit 110, and the handle unit 150 may be detachably mounted. The second bracket 144 includes a second cap 145 that covers the other end of the shaft unit 110, a bearing 146 that allows the other end of the shaft unit 110 to be rotatably coupled, and a handle unit 150 This may include a detachably mounted bush 147. The second cap 145 may cover the other end of the shaft unit 110 to prevent foreign matters from flowing into the inside. The bush 147 may be detachably mounted in the mounting hole 155 of the handle unit 150. The handle unit 150 may be detachably mounted to the brush head 30 by a hook member 151. When the handle unit 150 is detachably mounted on the brush head 30 and the second bracket 144 is detachably mounted on the handle unit 150 so that foreign substances are tangled in the brush drum 100, the handle unit ( By separating 150 from the brush head 30 and separating the brush drum 100 from the handle unit 150, foreign matter tangled in the brush drum 100 can be easily cleaned.

The handle unit 150 is rotatably provided on the handle unit 150 to fix the position of the handle unit 150 and the hook member 151 so that the brush head 30 is detachably mounted. It may include a plurality of fixing members 154 and a mounting hole 155 to which the bush 147 is detachably mounted. The hook member 151 includes a hinge 152 rotatably mounted on the brush head 30 and a hook that is rotated by the hinge 152 to be caught and released from the locking protrusion 35 of the brush head 30 ( 153) may be included.

The brush head 30 includes a locking protrusion 35 through which the hook 153 is engaged and released, and a plurality of fixing grooves 36 in which a plurality of fixing members 154 provided in the handle unit 150 are received and fixed. Can include.

9 is a view showing a state in which the handle unit is separated from the brush head by pressing the hook member of the handle unit according to an embodiment of the present invention, and FIG. 10 is a view showing the hook member is released from the locking projection by pressing the hook member of the handle unit. Fig. 11 is a cross-sectional view showing a state in which the brush drum including the handle unit according to an embodiment of the present invention is separated from the brush head.

As shown in FIG. 9, the hook member 151 of the handle unit 150 is exposed to the outside, and the hook member 151 may be pressed to separate the handle unit 150 from the brush head 30. . When the hook member 151 is pressed, as shown in FIG. 10, the hook 153 rotates around the hinge 152 to be released from the locking protrusion 35. The hook 153 disengaged from the locking protrusion 35 may be rotated around the hinge 152 by the spring 150a when the force pressing the hook member 151 is released and may be caught by the locking protrusion 35 . When the hook 153 is released from the locking protrusion 35, the brush drum 100 can be separated from the brush head 30 as shown in FIG. 11. The brush drum 100 may be separated from the handle unit 150 by detachably mounting the bush 147 to the handle unit 150.

FIG. 12 is a view showing a state in which a foreign material having a size larger than the length of the villi of a brush exists on the surface to be cleaned according to an embodiment of the present invention, and FIG. 13 is a view showing that when the brush drum in FIG. It is a diagram showing a state of elastic deformation by foreign substances.

As shown in FIG. 12, when a foreign material having a size larger than the length of the villi of the brush 130 exists on the floor, which is the surface to be cleaned, when the brush drum 100 passes the foreign material to clean the foreign material, FIG. As shown, the elastic member 120 is elastically deformed by foreign substances, so that the brush head 30 can be cleaned without lifting.

14 is a view showing an elastic member of the brush drum according to another embodiment of the present invention, Figure 15 is a view showing the elastic member of the brush drum according to another embodiment of the present invention.

As shown in FIG. 14, the elastic member 122 is provided in a cylindrical shape and has a first rubber 123 surrounding the outer circumferential surface of the shaft unit 110 and a cylindrical shape having a diameter larger than that of the first rubber 123. It may include a second rubber 124 to be used, and a plurality of ribs 125 connecting between the first rubber 123 and the second rubber 124. The rest of the configuration except for the elastic member 122 is the same as the configuration shown in FIG.

As shown in FIG. 15, the elastic member 126 may be formed of plastic made of an elastic material having a mesh shape.

FIG. 16 is a view showing a state in which both ends of a fabric with villi are sewn on a wide fiber layer according to an embodiment of the present invention, and then turned over so that the villi are exposed to the outside, and FIG. 17 is a view showing the villi in FIG. It is a view showing a cylindrical brush turned over to be exposed, and FIG. 18 is a view showing a state in which a jig according to an embodiment of the present invention is inserted into the inside of the brush to expand the inner diameter of the brush, and FIG. 19 is the present invention Is a view showing a state in which the elastic member surrounding the outer circumferential surface of the shaft unit is inserted into the brush having an expanded inner diameter according to an embodiment of the present invention. It is a view showing a state in which the jig is removed after inserting the elastic member surrounding the outer circumferential surface, and FIG. 21 is a view illustrating a state of assembling brackets at both ends of the shaft unit according to an embodiment of the present invention.

As shown in FIG. 16, in order to manufacture the brush drum 100, first, both ends of a fabric having villi hairs on a wide fiber layer may be stitched together. After sewing both ends, the brush 130 having a cylindrical shape may be manufactured by turning over so that the villi are exposed to the outside, as shown in FIG. 17. The elastic member 120 may be provided to surround the outer peripheral surface of the shaft unit 110 by insert injection molding. In another embodiment, after inserting the shaft unit 110 into the elastic member 120 so that the cylindrical elastic member 120 surrounds the outer circumferential surface of the shaft unit 110, the elastic member 120 and the shaft unit (110) can be joined.

When the brush 130 is manufactured and the elastic member 120 into which the shaft unit 110 is inserted is provided, a jig G is inserted into the brush 130 to insert the brush ( 130) can be expanded. When the inner diameter of the brush 130 is expanded, as shown in FIG. 19, the elastic member 120 surrounding the outer circumferential surface of the shaft unit 110 can be easily inserted into the brush 130. After inserting the elastic member 120 surrounding the outer circumferential surface of the shaft unit 110 into the brush 130, the jig G may be removed as shown in FIG. 20. After the jig (G) is removed, as shown in FIG. 21, after attaching the brackets 140 to both ends of the shaft unit 110, a sealant is applied to seal the inside of the brush drum 100. The drum 100 can be manufactured.

22 is a view showing a state in which the outer diameter of the elastic member is reduced by inserting an elastic member surrounding the outer circumferential surface of the shaft unit into a jig according to another embodiment of the present invention, and FIG. 23 is a view showing a state in which the outer diameter of the elastic member is reduced. It is a view showing a state in which an elastic member with a reduced outer diameter is inserted into the inside of a brush, and FIG. 24 is a diagram showing a state in which an elastic member with a reduced outer diameter according to another embodiment of the present invention is inserted into the inside of the brush and then a jig is removed. It is a drawing showing the appearance.

When the brush 130 is manufactured and the elastic member 120 into which the shaft unit 110 is inserted is provided, as shown in FIG. 22, the outer circumferential surface of the shaft unit 110 is wrapped inside the jig G. The outer diameter of the elastic member 120 may be reduced by inserting the elastic member 120. When the outer diameter of the elastic member 120 is reduced, as shown in FIG. 23, the elastic member 120 surrounding the outer circumferential surface of the shaft unit 110 can be easily inserted into the brush 130. After inserting the elastic member 120 surrounding the outer circumferential surface of the shaft unit 110 into the brush 130, as shown in FIG. 24, the jig G may be removed. After the jig (G) is removed, as shown in FIG. 21, after attaching the brackets 140 to both ends of the shaft unit 110, a sealant is applied to seal the inside of the brush drum 100. The drum 100 can be manufactured.

In the description of the cleaner and the brush drum manufacturing method of the cleaner with reference to the accompanying drawings above, a specific shape and direction have been mainly described, but various modifications and changes are possible by a person skilled in the art, and such modifications and changes are the present invention. It should be construed as being within the scope of the rights of

10: main body 11: handle
12: control unit 13: battery
14: connector coupling portion 15: filter housing
16: hole 17: dust collector coupling part
20: connector
30: brush head 31: suction port
32: drive motor 33: belt
34: coupling fixing portion 35: stopping protrusion
36: fixing groove
40: dust separator 41: button
50: dust bin 51: inlet
52: protrusion housing 53: sliding protrusion
60: motor housing
100: brush drum
110: shaft unit 111: shaft
113: pipe
120, 122, 126: elastic member 121: sponge
123: first rubber 124: second rubber
125: rib
130: brush
140: bracket 141: first bracket
142: first cap 143: coupling
144: second bracket 145: second cap
146: bearing 147: bush
150: handle unit 150a: spring
151: hook member 152: hinge
153: hook 154: fixing member
155: mounting hole
G: jig

Claims (20)

main body;
A brush head connected to the main body by a connection pipe and having a suction port; And
Including; a brush drum rotatably mounted on the brush head,
The brush drum,
A shaft unit rotatably mounted to the brush head;
A cylindrical elastic member provided to surround the outer circumferential surface of the shaft unit;
A brush provided in a cylindrical shape to surround the outer circumferential surface of the elastic member and formed of villi;
A pair of brackets assembled at both ends of the shaft unit and configured to rotatably mount the shaft unit to the brush head; And
A handle unit detachably mounted on the brush head and detachably mounted to one of the pair of brackets;
Cleaner containing. The method of claim 1,
The shaft unit is a vacuum cleaner including a shaft formed of a rigid body and a cylindrical pipe in which the shaft is accommodated. The method of claim 2,
The shaft and the pipe are integrally provided. The method of claim 2,
The shaft and the pipe are separately provided and assembled. The method of claim 1,
The elastic member is a cleaner formed of a sponge. The method of claim 1,
The elastic member is provided in a cylindrical shape to surround the outer circumferential surface of the shaft unit, a second rubber provided in a cylindrical shape having a diameter larger than that of the first rubber, and provided with a material having elasticity, the first rubber and A cleaner comprising a plurality of ribs connecting between the second rubbers. The method of claim 1,
The elastic member is a vacuum cleaner formed of plastic of an elastic material having a mesh shape. The method of claim 1,
The pair of brackets are assembled at one end of the shaft unit and include a first bracket that receives a driving force from a driving motor to rotate the shaft unit, and a second bracket that is assembled at the other end of the shaft unit and provided with the handle unit. Cleaner to include. The method of claim 8,
The first bracket includes a first cap covering one end of the shaft unit, and a coupling configured to transmit a driving force of the driving motor to the shaft unit so that the shaft unit is rotatable. The method of claim 9,
The second bracket includes a second cap for covering the other end of the shaft unit, a bearing for rotatably coupling the other end of the shaft unit, and a bush to which the handle unit is detachably mounted. The method of claim 10,
The handle unit is rotatably provided on the handle unit to allow the handle unit to be detachably mounted to the brush head, a plurality of fixing members to fix the position of the handle unit, and the bush to be detachable. Cleaner including a mounting hole to be mounted. The method of claim 11,
The hook member includes a hinge rotatably mounted to the brush head, and a hook that is rotated by the hinge to be hooked and released from the brush head. The method of claim 12,
The brush head is a cleaner including a coupling fixing part to which the coupling is fixed and connected by a belt to the driving motor and rotated together with the coupling by a driving force of the driving motor. The method of claim 13,
The brush head includes a locking protrusion through which the hook is engaged and released, and a plurality of fixing grooves in which the plurality of fixing members are fixed. After stitching the fabric on which the villi are haired against the wide fiber layer, the villi are turned over so that the villi are exposed to the outside to prepare a brush having a cylindrical shape,
A cylindrical elastic member surrounds the outer circumferential surface of the cylindrical shaft unit,
Inserting the elastic member surrounding the outer circumferential surface of the shaft unit into the inside of the brush,
Adhering both ends of the brush to both ends of the elastic member,
A method of manufacturing a brush drum for a cleaner comprising assembling brackets at both ends of the shaft unit. The method of claim 15,
The method of manufacturing a brush drum for a cleaner in which the elastic member surrounds the outer circumferential surface of the shaft unit by insert injection molding. The method of claim 15,
A method of manufacturing a brush drum for a cleaner in which the shaft unit is inserted into the elastic member and then bonded to the elastic member to surround the outer peripheral surface of the shaft unit. The method of claim 15,
A method of manufacturing a brush drum for a cleaner in which a jig is inserted into the brush to expand the inner diameter of the brush, and then the elastic member surrounding the outer circumferential surface of the shaft unit is inserted into the brush, and the jig is removed. . The method of claim 15,
After reducing the outer diameter of the elastic member by inserting the elastic member surrounding the outer circumferential surface of the shaft unit into the jig, inserting the elastic member surrounding the outer circumferential surface of the shaft unit into the brush, and then inserting the jig A method of manufacturing a brush drum for a vacuum cleaner to be removed The method of claim 15,
A method of manufacturing a brush drum for a cleaner in which both ends of the brush are adhered to both ends of the elastic member and then sealed by applying a sealant.

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