CLEANER

Abstract

A cleaner may include an intake portion configured to draw in debris from a surface to be cleaned, and a drum that is rotatable while arranged in the intake portion, and including: a body including: a first end along a rotational axis of the drum, the first end having a first end outer diameter and including: a body connecting portion, and a body spaced portion spaced from the body connecting portion along the rotational axis, and a second end along the rotational axis opposite the first end and having a second end outer diameter that is larger than the first end outer diameter, and a connecting body couplable to the first end of the body, and including a connecting portion connectable to the body spaced portion, wherein with the connecting body coupled to the first end of the body, the connecting portion is connected to the body spaced portion.

Claims

1. A cleaner, comprising: an intake portion configured to draw in debris from a surface to be cleaned; and a drum that is rotatable while arranged in the intake portion, and including: a drum body including: a first end along a rotational axis direction of the drum, the first end having a first end outer diameter and including: a body connecting portion, and a body spaced portion spaced from the body connecting portion along the rotational axis direction of the drum, and a second end along the rotational axis direction of the drum opposite the first end and having a second end outer diameter that is larger than the first end outer diameter, and a connecting body couplable to the first end of the drum body, and including a connecting portion connectable to the body spaced portion, wherein with the connecting body coupled to the first end of the drum body, the connecting portion is connected to the body spaced portion.

2. The cleaner of claim 1, wherein the drum body is a first drum body, a first end of the connecting body is couplable to the first end of the first drum body, and the drum further includes: a second drum body including: a third end along the rotational axis direction of the drum having a third end outer diameter, and that is couplable to a second end of the connecting body opposite of the first end of the connecting body to which the first end of the first drum body is couplable, and a fourth end along the rotational axis direction of the drum opposite the third end of the second drum body and having a fourth end outer diameter that is larger than the third end outer diameter.

3. The cleaner of claim 2, wherein the body connecting portion of the first end is a first body connecting portion, the connecting portion of the connecting body is a first connecting portion, the connecting body further includes a second connecting portion on the second end of the connecting body, the third end of the second drum body includes a second body connecting portion couplable to the second end of the connecting body and connectable to the first body connecting portion, and with the first end of the connecting body coupled to the first end of the first drum body and the second end of the connecting body coupled to the third end of the second drum body, the second body connecting portion is coupled to the second end of the connecting body and the second body connecting portion is connected to the first body connecting portion.

4. The cleaner of claim 3, wherein the body spaced portion of the first end is a first body spaced portion, the third end of the second drum body includes a second body spaced portion connectable to the second connecting portion, and with the third end of the second drum body coupled to the second end of the connecting body, the second connecting portion is connected to the second body spaced portion.

5. The cleaner of claim 4, wherein the second body connecting portion is spaced from the second body spaced portion along the rotational axis direction of the drum.

6. The cleaner of claim 2, wherein the body connecting portion of the first end is a first body connecting portion, the body spaced portion of the first end is a first body spaced portion, and the third end of the second drum body further includes: a second body connecting portion, and a second body spaced portion spaced from the second body connecting portion in the rotational axis direction of the drum.

7. The cleaner of claim 6, wherein the connecting portion of the connecting body is a first connecting portion, the first end of the connecting body further includes a second connecting portion connectable to the first body connecting portion, and the second end of the connecting body includes: a third connecting portion connectable to the second body spaced portion, and a fourth connecting portion connectable to the second body connecting portion.

8. The cleaner of claim 7, wherein the first drum body includes a first material, the drum further includes a drum brush including a second material more flexible than the first material, the first drum body includes a first brush mounting portion to which a first portion of the drum brush is detachably mountable, the second drum body includes a second brush mounting portion to which a second portion of the drum brush is detachably mountable, and the connecting body includes a connecting brush mounting portion to which a third portion of the drum brush is detachably mountable.

9. The cleaner of claim 2, wherein the first drum body includes a first body support portion into which at least a portion of the first end of the connecting body is insertable, the second drum body includes a second body support portion into which at least a portion of the second end of the connecting body is insertable, and with the portion of the first end of the connecting body inserted into the first body support portion and the second end of the connecting body inserted into the second body support portion, the first drum body and the second drum body are coupled to the connecting body.

10. The cleaner of claim 2, wherein the first drum body includes a first material, the second drum body includes a second material, the drum further includes a drum brush including a third material more flexible than the first material and the second material, the first drum body includes a first brush mounting portion to which at least a first portion of the drum brush is detachably mountable, and the second drum body includes a second brush mounting portion to which at least a second portion of the drum brush is detachably mountable.

11. The cleaner of claim 10, wherein the first brush mounting portion extends helically in a first direction along an outer circumferential surface of the first drum body, the second brush mounting portion extends helically in a second direction along an outer circumferential surface of the second drum body, the first direction being different from the second direction, the first brush mounting portion and the second brush mounting portion are connected at a boundary portion, and the connecting body includes a blocking portion configured to cover at least a portion of a boundary portion.

12. The cleaner of claim 11, wherein, with the connecting body coupled to the first drum body and the second drum body, the blocking portion forms a portion of an outer circumferential surface of the drum.

13. The cleaner of claim 1, wherein the connecting portion of the connecting body is a first connecting portion, the connecting body further includes a second connecting portion connectable to the body connecting portion, and with the connecting body coupled to the first end of the drum body, the second connecting portion is connected to the body connecting portion.

14. The cleaner of claim 1, wherein the connecting body includes a connection surface forming portion, and with the connecting body coupled to the first end of the drum body, the connection surface forming portion forms at least a portion of an outer circumferential surface of the drum.

15. The cleaner of claim 1, wherein the connecting body includes a diameter that does not change along the rotational axis direction of the drum.

Description

DESCRIPTION OF DRAWINGS

[0009] FIG. 1 illustrates a cleaner according to an embodiment of the present disclosure.

[0010] FIG. 2 illustrates a state in which a dust collector is separated from a main body of the cleaner according to an embodiment of the present disclosure.

[0011] FIG. 3 illustrates a portion of a side cross-sectional view of the cleaner according to an embodiment of the present disclosure.

[0012] FIG. 4 illustrates an intake head of the cleaner according to an embodiment of the present disclosure.

[0013] FIG. 5 is an exploded view illustrating the intake head of the cleaner according to an embodiment of the present disclosure.

[0014] FIG. 6 illustrates a drum of the cleaner according to an embodiment of the present disclosure.

[0015] FIG. 7 is an exploded view illustrating the drum of the cleaner according to an embodiment of the present disclosure.

[0016] FIG. 8 illustrates a cross-sectional view of the drum of the cleaner according to an embodiment of the present disclosure.

[0017] FIG. 9 illustrates a state in which foreign matter is wound around the drum of the cleaner according to an embodiment of the present disclosure.

[0018] FIG. 10 illustrates a drum of a cleaner according to an embodiment of the present disclosure.

[0019] FIG. 11 is an exploded view illustrating the drum of the cleaner according to an embodiment of the present disclosure.

[0020] FIG. 12 illustrates a drum of a cleaner according to an embodiment of the present disclosure.

[0021] FIG. 13 is an exploded view illustrating the drum of the cleaner according to an embodiment of the present disclosure.

[0022] FIG. 14 illustrates a state in which the drum is disassembled from a cleaner according to an embodiment of the present disclosure.

MODES OF THE INVENTION

[0023] Various embodiments of the disclosure and terms used herein are not intended to limit the technical features described herein to specific embodiments, and should be understood to include various modifications, equivalents, or substitutions of the corresponding embodiments.

[0024] In describing of the drawings, similar reference numerals may be used for similar or related elements.

[0025] The singular form of a noun corresponding to an item may include one or more of the items unless clearly indicated otherwise in a related context.

[0026] In the disclosure, phrases, such as A or B, at least one of A and B, at least one of A or B, A, B or C, at least one of A, B and C, and at least one of A, B, or C may include any one or all possible combinations of the items listed together in the corresponding phrase among the phrases.

[0027] As used herein, the term and/or includes any and all combinations of one or more of the associated listed items.

[0028] Terms such as 1st, 2nd, primary, or secondary may be used simply to distinguish an element from other elements, without limiting the element in other aspects (e.g., importance or order).

[0029] When an element (e.g., a first element) is referred to as being (functionally or communicatively) coupled or connected to another element (e.g., a second element), the first element may be connected to the second element, directly (e.g., wired), wirelessly, or through a third element.

[0030] It will be understood that when the terms includes, comprises, including, and/or comprising are used in the disclosure, they specify the presence of the specified features, figures, steps, operations, components, members, or combinations thereof, but do not preclude the presence or addition of one or more other features, figures, steps, operations, components, members, or combinations thereof.

[0031] When a given element is referred to as being connected to, coupled to, supported by or in contact with another element, it is to be understood that it may be directly or indirectly connected to, coupled to, supported by, or in contact with the other element. When a given element is indirectly connected to, coupled to, supported by, or in contact with another element, it is to be understood that it may be connected to, coupled to, supported by, or in contact with the other element through a third element.

[0032] It will also be understood that when an element is referred to as being on another element, it may be directly on the other element or intervening elements may also be present.

[0033] Hereinafter, for ease of description, a stick-type cleaner, which is a type of vacuum cleaner, will be described as an example, but the configuration of the present disclosure is not limited to the stick-type cleaner. For example, the configuration of the present disclosure may also be applied to a canister-type cleaner or a robot cleaner.

[0034] Hereinafter, various embodiments according to the present disclosure will be described in detail with reference to the accompanying drawings.

[0035] FIG. 1 illustrates a cleaner according to an embodiment of the present disclosure. FIG. 2 illustrates a state in which a dust collector is separated from a main body of the cleaner according to an embodiment of the present disclosure. FIG. 3 is a view illustrating a portion of a side cross-section of the cleaner according to an embodiment of the present disclosure.

[0036] Referring to FIGS. 1 to 3, a cleaner 1 (e.g., a vacuum cleaner), may include an intake head 100 configured to draw in dirt, such as dust, from a surface to be cleaned by an intake force of air, and a main body 10 configured such that dirt drawn in through the intake head 100 is collected.

[0037] The cleaner 1 according to an embodiment of the present disclosure may include a connecting pipe 30 configured to connect between the intake head 100 and the main body 10.

[0038] The intake head 100 may be in close contact with the surface to be cleaned and may draw in air and foreign matter from the surface to be cleaned. The intake head 100 may be rotatably coupled to the connecting pipe 30. The air and dirt drawn in by the intake head 100 may pass through the connecting pipe 30 and flow into an interior of the main body 10.

[0039] The connecting pipe 30 may be formed of a pipe having a predetermined rigidity or a flexible hose. The connecting pipe 30 may transmit the intake force generated by an intake motor 14 to the intake head 100, and guide dirt, such as air and dust drawn in through the intake head 100, to the main body 10.

[0040] The connecting pipe 30 may further include an intake head connector 31. The intake head connector 31 may be configured to separate the intake head 100 from the main body 10 or couple to the main body 10.

[0041] The cleaner 1 according to an embodiment of the present disclosure may include a fan 14 rotatably arranged to generate an intake force on the surface to be cleaned, and the intake motor 13 arranged to provide a rotational force to the fan 14. For example, the fan 14 and the intake motor 13 may be arranged in the main body 10.

[0042] The intake motor 13 may perform a function of converting an electromagnetic force into a mechanical rotational force. To perform such a function, the intake motor 13 may include a stator 13b in which a coil is installed, a rotor 13a having magnetism and capable of rotating by electromagnetic force, and a rotor shaft 13c passing through the rotor 13a and arranged to rotate. The fan 14 connected to the intake motor 13 via the rotor shaft 13c of the intake motor 13 may be provided within the main body 10. For example, a fan motor module may include the intake motor 13 and the fan 14.

[0043] In FIG. 3, the intake motor 13 is shown as an inner-rotor type in which the rotor 13a is located on an inner side of the stator 13b, but is not limited thereto, and the intake motor may be provided as an outer-rotor type in which the rotor is located on an outer side of the stator.

[0044] The main body 10 may include an intake port 11a through which air and foreign matter are drawn into the interior of the main body 10, and an exhaust port 12a through which air and foreign matter are discharged to the exterior of the main body 10. The main body 10 may include an intake duct 11 communicating with one end of an extension pipe 30, and the intake port 11a may be formed at one end of opposite ends of the intake duct 11, which is connected to the one end of the extension pipe 30. Accordingly, air and foreign matter may flow into the interior of the main body 10 through the intake port 11a of the intake duct 11. However, the present disclosure is not limited thereto, and the main body 10 may not include a duct structure such as the intake duct 11, and the intake port 11a and the extension pipe 30 may be directly connected.

[0045] The main body 10 may include an exhaust case 12, and the exhaust port 12a may be formed on an outer circumferential surface of the exhaust case 12.

[0046] The main body 10 may include an operating portion 17. A user may operate a power button or the like provided on the operating portion 17 to turn the cleaner 1 on/off or to manipulate the suction power.

[0047] The cleaner 1 according to an embodiment of the present disclosure may include a handle 40 arranged to be gripped by a user.

[0048] The cleaner 1 according to an embodiment of the present disclosure may include a battery 50 arranged to supply power necessary to drive components of the cleaner 1, such as the intake motor 13. The battery 50 may be removably attached to the main body 10. In an example, the battery 50 may be electrically connected to a charging terminal provided on a cleaner cradle or a docking station. The battery 50 may be charged by receiving power from the charging terminal provided on the cleaner cradle or the docking station. When the battery 50 is discharged, the operating time of the cleaner may be increased by replacing the discharged battery 50 with a pre-charged battery 50. Alternatively, the battery 50 may be provided integrally with the main body 10.

[0049] The cleaner 1 according to an embodiment of the present disclosure may include a dust collector 20 configured to separate and collect foreign matter from drawn-in air. For example, the dust collector 20 may be provided in the main body 10. The dust collector 20 may be arranged on an upstream side of the intake motor 13 along a flow direction of air and configured to separate dirt from air flowing into the dust collector 20 and to collect the separated dirt.

[0050] Air flowing into the interior of the main body 10 via the intake port 11a may be introduced into an interior of the dust collector 20 via an inlet 22. The dust collector 20 may be arranged to be detachably coupled to the main body 10.

[0051] The cleaner 1 according to an embodiment of the present disclosure may include a body coupling portion 16 for detachably coupling the dust collector 20 to the main body 10. In an example, the body coupling portion 16 may be located on an upper portion of the dust collector 20. For example, the body coupling portion 16 may include a button that engages one side of the main body 10. Once the body coupling portion 16 is engaged with the one side of the main body 10, the dust collector 20 may be attached to the main body 10. As the body coupling portion 16 is pressed by a user while the dust collector 20 is attached to the main body 10, the body coupling portion 16 may be arranged to be disengaged, thereby allowing the dust collector 20 to be detached from the main body 10. However, the present disclosure is not limited to such a method, and a method for detachably coupling the dust collector 20 to the main body 10 may be provided in a variety of ways, such as a hook method.

[0052] The dust collector 20 may include a dust collecting case 26 configured to collect foreign matter separated from air. The dust collecting case 26 may form an exterior of the dust collector 20. The dust collecting case 26 may form a dust collecting chamber 21 on an inner side in which foreign matter separated from air is collected.

[0053] Foreign matter in the air introduced into the interior of the main body 10 through the intake port 11a may be separated from the air and collected in the dust collecting chamber 21 formed on the inner side of the dust collecting case 26. The air from which foreign matter has been separated by a dust separator 29 may be discharged to the outside of the dust collector 20 through an outlet 23.

[0054] The dust collector 20 may include a dust collecting cover 27 configured to open and close the dust collecting chamber 21. For example, the dust collecting cover 27 may be rotatably coupled to one side of the dust collecting case 26. The dust collecting cover 27 may be rotatably mounted on the dust collecting case 26 by a cover rotation shaft 27a.

[0055] The cleaner 1 according to an embodiment of the present disclosure may include a cover holding portion 28 configured to hold the dust collecting cover 27 on the dust collecting case 26 or to release the hold from the dust collecting case 26. For example, upon pressing the cover holding portion 28, the dust collecting cover 27 may rotate downwardly to open the dust collecting chamber 21. With such a configuration, a user may easily remove foreign matter collected in the dust collecting chamber 21 without detaching the dust collector 20 from the main body 10.

[0056] The cleaner 1 according to an embodiment of the present disclosure may include the dust separator 29 for separating foreign matter from drawn-in air. The dust separator 29 may be configured to separate foreign matter from air drawn into the main body 10.

[0057] In an example, as shown in FIG. 3, the dust separator 29 may include a cyclone structure configured to separate foreign matter from drawn-in air. The cyclone structure of the dust separator 29 may separate foreign matter by centrifugal force generated as the drawn-in air and foreign matter undergo a rotational flow, and an inlet through which air is introduced may be formed to have a structure capable of guiding the rotational flow of air, such as a helical inlet, a tangential inlet, or a guide vane inlet.

[0058] However, the dust separator 29 provided in the cleaner 1 according to an embodiment of the present disclosure is not limited to such a cyclone-type dust separator 29, and various types of dust separators may be provided.

[0059] To allow air to flow from the inlet 22 to the outlet 23, the intake motor 13 may be located at a downstream side of the dust collector 20 in an air flow path through which air flows from the inlet 22.

[0060] Air discharged to the outside of the dust collector 20 through the outlet 23 may sequentially pass through the intake motor 13 and the exhaust port 12a and be discharged to the outside of the main body 10. The main body 10 may include an exhaust filter 15 between the dust collector 20 and the exhaust port 12a to filter dust in the air before the air inside the main body 10 is discharged to the outside of the main body 10 through the exhaust port 12a. In an example, the exhaust filter 15 may filter out ultra-fine dust or the like that has not been filtered in the dust separator 29 of the dust collector 20. For example, the exhaust filter 15 may include a high efficiency particulate air (HEPA) filter.

[0061] With such a configuration, air and foreign matter such as dust in the air may be drawn into the intake head 100 when an intake force is generated by the intake motor 13 and the fan 14 inside the main body 10. The air and foreign matter drawn into the intake head 100 may be drawn into the interior of the main body 10 through the extension pipe 30 and the intake port 11a. The air drawn into the interior of the main body 10 may enter the dust collector 20 through the inlet 22, and the dust in the air may be separated from the air by the dust separator 29. The foreign matter separated from the air may be received in the dust collecting chamber 21 formed on the inner side of the dust collecting case 26, and the air that has passed through the dust separator 29 may be discharged to the outside of the dust collector 20 through the outlet 23. The air discharged to the outside of the dust collector 20 may be filtered once more by passing through the exhaust filter 15, and may be exhausted to the outside of the main body 10 through the exhaust port 12a.

[0062] FIG. 4 illustrates the intake head of the cleaner according to an embodiment of the present disclosure. FIG. 5 is an exploded view illustrating the intake head of the cleaner according to an embodiment of the present disclosure.

[0063] Referring to FIGS. 4 and 5, the cleaner 1 according to an embodiment of the present disclosure may include a drum 110 rotatably arranged on the intake head 100. The drum 110 may be contactable with a surface to be cleaned and configured to draw foreign matter, such as dirt, present on the surface to be cleaned into an inner side of the intake head 100.

[0064] For example, as the drum 110 rotates, foreign matter on the surface to be cleaned may be drawn into the inner side of the intake head 100 through an intake portion 101a of the intake head 100. The foreign matter drawn into the inner side of the intake head 100 may be drawn into the connecting pipe 30 after through a communication port 101b connecting the connecting pipe 30 to the intake head 100 by the intake motor 13 of the main body 10, and then may be moved to the main body 10 side.

[0065] The intake head 100 may include a housing 102 in which the intake portion 101a is formed, and an intake connector 70 connecting the housing 102 and the connecting pipe 30. On the inner side of the intake head 100, the drum 110 may be arranged rotatably on the intake head 100 such that foreign matter is effectively drawn into the interior of the housing 102 through the intake portion 101a.

[0066] For example, the housing 102 of the intake head 100 may include an upper housing 121, a lower housing 122, a side housing 123, and a drum mounting portion 124.

[0067] In an example, the side housing 123 may be coupled to a left side of the lower housing 122, and the drum mounting portion 124 may be coupled to a right side of the drum 110 and disposed on a right side of the lower housing 122. However, the arrangement of the side housing 123 and the drum mounting portion 124 is not limited thereto, and the side housing 123 may be coupled to the right side of the lower housing 122, and the drum mounting portion 124 may be disposed on the left side of the lower housing 122.

[0068] The drum mounting portion 124 may rotatably support the drum 110. The drum mounting portion 124 may include a housing coupling portion 124a and a housing switch 124b for coupling the drum 110 to the housing 102. Because the drum mounting portion 124 includes the housing coupling portion 124a and the housing switch 124b, the drum 110 may be detachably coupled to one side of the housing 102. The drum mounting portion 124 may be detachably coupled to the upper housing 121 and the lower housing 122 together with the drum 110 by the housing coupling portion 124a and the housing switch 124b.

[0069] The housing coupling portion 124a may protrude from the drum mounting portion 124 toward the upper housing 121 and the lower housing 122. For example, the housing coupling portion 124a may include a hook-shaped portion, and the housing switch 124b may be arranged to be able to press the portion having the hook-shaped portion of the housing coupling portion 124a. The upper housing 121 may include an insertion groove 121a formed in a shape corresponding to the housing coupling portion 124a to allow the housing coupling portion 124a to be inserted. For example, a fastening groove 121b may be formed in the insertion groove 121a of the upper housing 121 for fastening the hook-shaped portion of the housing coupling portion 124a.

[0070] According to such a configuration, the drum mounting portion 124 may be easily detachable from the upper housing 121 and the lower housing 122, and the drum 110 may be mounted to be easily detachable from the housing 102 of the intake head 100. However, the configuration of the drum mounting portion 124 described above is an example of detachably coupling the drum 110 to the housing 102, and the configuration of the drum mounting portion 124 is not limited to the description above. For example, the drum 110 may be arranged to be detached from the housing 102 or attached to the housing 102 in a state in which the drum mounting portion 124 is coupled to the upper housing 121 and the lower housing 122.

[0071] The intake head 100 according to an embodiment of the present disclosure may include a drum driver 130. The drum driver 130 may be located inside the housing 102. The drum driver 130 may include a drum motor 131 that generates power. The drum driver 130 may include a motor bearing 133 located on one side of the drum 110 and coupled to a rotation shaft. The drum driver 130 may include a drum pulley 132 coupled on one side to the motor bearing 133 and on the other side to the rotation shaft of the drum motor 131 for transmitting power from the drum motor 131 to the drum 110.

[0072] Accordingly, in response to the drum motor 131 generating power to cause the rotation shaft of the drum motor 131 to rotate, the drum pulley 132 may be operated, and the motor bearing 133 is rotated by the operation of the drum pulley 132. The motor bearing 133 may be coupled to one end of the drum 110. As the motor bearing 133 rotates, the drum 110 may rotate.

[0073] In the following, the configuration and function of the drum 110 will be described in detail.

[0074] FIG. 6 illustrates the drum of the cleaner according to an embodiment of the present disclosure. FIG. 7 is an exploded view illustrating the drum of the cleaner according to an embodiment of the present disclosure. FIG. 8 illustrates a state in which foreign matter is wound around the drum of the cleaner according to an embodiment of the present disclosure. FIG. 9 illustrates a cross-sectional view of the drum of the cleaner according to an embodiment of the present disclosure.

[0075] Referring to FIGS. 6 to 9, the drum 110 of the cleaner 1 according to an embodiment of the present disclosure may have a shape including a portion that increases in size from approximately the center toward both ends in a rotational axis direction of the drum 110. For example, the drum 110 may have a shape including a portion whose outer diameter increases outwardly from a central portion along the rotational axis direction of the drum 110. For example, the drum 110 may include a portion whose diameter decreases from both ends toward the center.

[0076] The drum 110 of the cleaner 1 according to an embodiment of the present disclosure may include at least one drum body. In an example, the drum 110 may include a first drum body 111. The first drum body 111 may form a portion of the drum 110. For example, the first drum body 111 may form a left portion of the drum 110.

[0077] The first drum body 111 may be configured such that one end and the other end thereof have different sizes in the rotational axis direction of the drum 110. For example, the first drum body 111 may be configured such that a diameter of a first end thereof is smaller than that of a second end thereof in the rotational axis direction of the drum 110. The first drum body 111 may include a portion whose diameter increases from the first end toward the second end in the rotational axis direction of the drum 110.

[0078] The drum 110 according to an embodiment of the present disclosure may include a second drum body 112. The second drum body 112 may form a portion of the drum 110. For example, the second drum body 112 may form a right portion of the drum 110.

[0079] The second drum body 112 may be configured such that one end and the other end thereof have different sizes in the rotational axis direction of the drum 110. For example, the second drum body 112 may be configured such that a diameter of a third end thereof is smaller than that of a fourth end thereof in the rotational axis direction of the drum 110. The second drum body 112 may include a portion whose diameter increases from the third end toward the fourth end in the rotational axis direction of the drum 110.

[0080] Since the first end of the first drum body 111 having the smallest diameter and the third end of the second drum body 112 having the smallest diameter are arranged to be connected, the drum 110 according to an embodiment of the present disclosure may have a shape in which the diameter thereof becomes smaller toward the center.

[0081] The drum 110 according to an embodiment of the present disclosure may include a connecting body 113 provided between the first drum body 111 and the second drum body 112. The first drum body 111 may be detachably mounted to one side of the connecting body 113. The second drum body 112 may be detachably mounted to the other side of the connecting body 113.

[0082] The connecting body 113 may include a connecting receiving portion 1131 that is accommodated inside the first drum body 111 and the second drum body 112 when the connecting body 113 is coupled to the first drum body 111 and the second drum body 112. The connecting receiving portion 1131 may include a first connecting receiving portion 1131a insertable into the first drum body 111 and a second connecting receiving portion 1131b insertable into the second drum body 112.

[0083] The first drum body 111 may include a first body support portion 1117 into which the first connecting receiving portion 1131a is insertable. The first body support portion 1117 may support the connecting body 113 in a direction that prevents relative rotation of the connecting body 113 with respect to the first drum body 111 when the connecting body 113 is coupled to the first drum body 111. The first connecting receiving portion 1131a may be slidably inserted into the first body support portion 1117.

[0084] The second drum body 112 may include a second body support portion 1127 into which the second connecting receiving portion 1131b is insertable. The second body support portion 1127 may support the connecting body 113 in a direction that prevents relative rotation of the connecting body 113 with respect to the second drum body 112 when the connecting body 113 is coupled to the second drum body 112. The second connecting receiving portion 1131b may be slidably inserted into the second body support portion 1127.

[0085] Referring to FIGS. 7 and 9, in the drum 110 according to an embodiment of the present disclosure, when an external force is applied to the drum 110 in a direction different from the rotational axis direction of the drum 110, a force transmitted to a portion where the first drum body 111 and the second drum body 112 are connected may be distributed to a coupling section of the first connecting receiving portion 1131a and the first body support portion 1117 and a coupling section of the second connecting receiving portion 1131b and the second body support portion 1127, thereby reducing a possibility of fracture.

[0086] In an example, the drum 110 may include a body fastening member 119 for coupling the first drum body 111 and the second drum body 112. The first drum body 111 may include a first body fastening portion 1119 to which the body fastening member 119 may be fastened. The second drum body 112 may include a second body fastening portion 1129 to which the body fastening member 119 may be fastened. For example, the drum 110 may be assembled by connecting the first drum body 111 and the second drum body 112 to both ends of the connecting body 113, and then fastening the body fastening member 119 to the first body fastening portion 1119 and the second body fastening portion 1129. A fastening method of the first drum body 111 and the second drum body 112 is not limited thereto, and may be provided as a hook method or a snap-fit method.

[0087] The connecting body 113 may include a connection surface forming portion 1132 that, when coupled to the first drum body 111 and the second drum body 112, forms a portion of an outer surface of the drum 110 together with the first drum body 111 and the second drum body 112. The connection surface forming portion 1132 may be located at an approximately central portion of the drum 110. The connection surface forming portion 1132 may be located at a portion of the drum 110 having the smallest outer diameter. The connection surface forming portion 1132 may be arranged to have a plurality of sections where boundary lines at which the first drum body 111 and the second drum body 112 are connected are spaced apart from each other. As the connection surface forming portion 1132 is arranged to have the plurality of sections where the boundary lines at which the first drum body 111 and the second drum body 112 are connected are spaced apart from each other, the drum 110 according to an embodiment of the present disclosure may reduce foreign matter, such as hair, from being caught in the boundary lines at which the first drum body 111 and the second drum body 112 are connected.

[0088] The first drum body 111 may include a first body connecting portion 1111 that connects to the second drum body 112 when the first drum body 111 is coupled to the second drum body 112 and the connecting body 113. The first body connecting portion 1111 may be provided at one end of the first drum body 111 facing the second drum body 112.

[0089] The second drum body 112 may include a second body connecting portion 1121 that connects to the first drum body 111 when the second drum body 112 is coupled to the first drum body 111 and the connecting body 113. The second body connecting portion 1121 may be provided at one end of the second drum body 112 facing the first drum body 111. The second body connecting portion 1121 may be arranged to be contactable with the first body connecting portion 1111.

[0090] The first drum body 111 may include a first body spaced portion 1113 that connects to the connecting body 113 when the first drum body 111 is coupled to the connecting body 113. The first body spaced portion 1113 may be arranged to be spaced from the first body connecting portion 1111 in the rotational axis direction of the drum 110. In an example, the first drum body 111 may include a portion having a groove shape to form the first body spaced portion 1113.

[0091] The connecting body 113 may include a first connecting portion 1133 that connects to the first drum body 111 when the connecting body 113 is coupled to the first drum body 111. The first connecting portion 1133 may be provided at one end of the connection surface forming portion 1132. The first connecting portion 1133 may be arranged to be connectable to the first body spaced portion 1113 of the first drum body 111. The first connecting portion 1133 may be arranged to be contactable with the first body spaced portion 1113 of the first drum body 111. In an example, the connecting body 113 may include a protruding portion to form the first connecting portion 1133. The protruding portion on which the first connecting portion 1133 of the connecting body 113 is formed may be inserted into the portion having the groove shape of the first drum body 111.

[0092] The second drum body 112 may include a second body spaced portion 1124 that connects to the connecting body 113 when the second drum body 112 is coupled to the connecting body 113. The second body spaced portion 1124 may be arranged to be spaced from the second body connecting portion 1121 in the rotational axis direction of the drum 110. In an example, the second drum body 112 may include a portion having a groove shape to form the second body spaced portion 1124.

[0093] The connecting body 113 may include a second connecting portion 1134 that connects to the second drum body 112 when the connecting body 113 is coupled to the second drum body 112. The second connecting portion 1134 may be provided at the other end different from the one end of the connection surface forming portion 1132. The second connecting portion 1134 may be arranged to be connectable to the second body spaced portion 1124 of the second drum body 112. The second connecting portion 1134 may be arranged to be contactable with the second body spaced portion 1124 of the second drum body 112. In an example, the connecting body 113 may include a protruding portion to form the second connecting portion 1134. The protruding portion on which the second connecting portion 1134 of the connecting body 113 is formed may be inserted into the portion having the groove shape of the second drum body 112.

[0094] Referring to FIG. 8, in the drum 110 according to an embodiment of the present disclosure, a portion where the first drum body 111 and the connecting body 113 are connected may be arranged to be spaced from a portion where the first drum body 111 and the second drum body 112 are connected in the rotational axis direction of the drum 110. In accordance with such a configuration, even if foreign matter, such as hair, is wound around the drum 110 according to an embodiment of the present disclosure, the drum 110 may reduce the foreign matter from being caught in a boundary portion where the first drum body 111 and the second drum body 112 are connected.

[0095] The drum 110 according to an embodiment of the present disclosure may include a drum brush 116. The drum brush 116 may be provided in a helical shape on an outer circumferential surface of the drum 110. For example, the drum brush 116 may include a plurality of brush parts.

[0096] The drum brush 116 according to an embodiment of the present disclosure is not limited to the meaning of a broom, a bristle brush, or the like that sweeps dust or debris, but may broadly include the functional meaning of a brush that performs actions, such as sweeping, dusting, or the like. Thus, the drum brush 116 according to an embodiment of the present disclosure is not limited to a bristle shape with a plurality of bristles, but may include various shapes as long as it may sweep or brush away foreign matter on the surface to be cleaned. In an example, the drum brush 116 may include bristles that are stiffer than typical brushes to facilitate cleaning pet hair. For example, the drum brush 116 may include a flannel or an elastic blade or the like. The drum brush 116 may include a softer or more flexible material than the first drum body 111 and/or the second drum body 112.

[0097] In addition, referring to FIGS. 6 to 9, while the brush bristles constituting the drum brush 116 are shown as being integrally formed, this is shown for convenience to illustrate the drum brush 116 as a unit of a plurality of brush bristles, and the shape of the drum brush 116 according to an embodiment of the present disclosure is not limited thereto.

[0098] The first drum body 111 may include a first brush mounting portion 1116 for detachably mounting at least a portion of the drum brush 116. The first brush mounting portion 1116 may protrude from an outer circumferential surface of the first drum body 111 to support at least a portion of the drum brush 116. The first brush mounting portion 1116 may be provided in a helical shape on the outer circumferential surface of the first drum body 111 to correspond to the drum brush 116. For example, the drum brush 116 may be arranged to be slidably mounted to the first brush mounting portion 1116. The first brush mounting portion 1116 may include a guide rail 1116a for slidably mounting of the drum brush 116.

[0099] The second drum body 112 may include a second brush mounting portion 1126 for detachably mounting at least a portion of the drum brush 116. The second brush mounting portion 1126 may protrude from an outer circumferential surface of the second drum body 112 to support at least a portion of the drum brush 116. The second brush mounting portion 1126 may be provided in a helical shape on the outer circumferential surface of the second drum body 112 to correspond to the drum brush 116. For example, the drum brush 116 may be arranged to be slidably mounted to the second brush mounting portion 1126. The second brush mounting portion 1126 may include a guide rail 1126a for slidably mounting of the drum brush 116.

[0100] In response to the first drum body 111 and the second drum body 112 being coupled by the connecting body 113, the first brush mounting portion 1116 and the second brush mounting portion 1126 may be connected. In response to the first drum body 111 and the second drum body 112 being coupled by the connecting body 113, the helical shape of the first brush mounting portion 1116 and the helical shape of the second brush mounting portion 1126 may be connected.

[0101] Since the drum 110 according to an embodiment of the present disclosure includes the first brush mounting portion 1116 and the second brush mounting portion 1126 having a helical shape, it may need to be manufactured by a three-dimensional (3D) helical rotational molding method rather than by an injecting molding method from a core composed of upper, lower, left, and right parts. Since the drum 110 according to an embodiment of the present disclosure has a shape in which the diameter of the drum 110 increases outwardly from the central portion along the rotational axis direction of the drum 110, it is not easy to manufacture when the first drum body 111 and the second drum body 112 are integrally formed, but since the first drum body 111 and the second drum body 112 are provided as separate configurations, each configuration may be easily manufactured.

[0102] The connecting body 113, when coupled to the first drum body 111 and the second drum body 112, may include a blocking portion 1136 for reducing foreign matter, such as hair, from being caught in the boundary line where the first brush mounting portion 1116 and the second brush mounting portion 1126 are connected. The blocking portion 1136 may form a portion of the outer surface of the drum 110 when the connecting body 113 is coupled to the first drum body 111 and the second drum body 112.

[0103] The blocking portion 1136 of the connecting body 113 may be arranged to contact a portion where the first brush mounting portion 1116 and the second brush mounting portion 1126 are connected. The helical shape formed by the first brush mounting portion 1116 and the second brush mounting portion 1126 may change a direction of the extension at the portion where the first brush mounting portion 1116 and the second brush mounting portion 1126 are connected, and the blocking portion 1136 may be arranged to contact the portion where the direction of the extension of the helical shape formed by the first brush mounting portion 1116 and the second brush mounting portion 1126 changes. The blocking portion 1136 may be configured to cover at least a portion of the boundary line where the first brush mounting portion 1116 and the second brush mounting portion 1126 are connected.

[0104] The drum 110 according to an embodiment of the present disclosure may include a bearing cap 114 and a drive cap 115 disposed at opposite ends of the drum 110. For example, the bearing cap 114 may be disposed at one end on the side housing 123 side of the drum 110, and the drive cap 115 may be disposed at the other end on the drum mounting portion 124 side of the drum 110.

[0105] The bearing cap 114 may cover one end of the drum 110. The bearing cap 114 may be detachably coupled to the first drum body 111. The bearing cap 114 may be arranged to be secured to one end of the first drum body 111 facing one side of the side housing 123. For example, the bearing cap 114 may be arranged to be secured to one end of the first drum body 111 facing the side housing 123. The bearing cap 114 may be at least partially inserted into the first drum body 111 and supported on an inner circumferential surface of the first drum body 111.

[0106] The bearing cap 114 may be connected to the drum driver 130. For example, the bearing cap 114 may be coupled to the motor bearing 133 of the drum driver 130. The bearing cap 114 may be arranged to rotate together with the motor bearing 133. Power generated by the drum motor 131 may be transmitted to the bearing cap 114 through the drum pulley 132 and the motor bearing 133.

[0107] The bearing cap 114 may include a first cap fixing portion 114a, and the first drum body 111 may include a first body fixing portion 111a corresponding to the first cap fixing portion 114a. In a state where the first cap fixing portion 114a and the first body fixing portion 111a are aligned, the bearing cap 114 may be secured to the first drum body 111 in response to fastening a fastening member to the first cap fixing portion 114a and the first body fixing portion 111a.

[0108] The drive cap 115 may be arranged to cover the other end opposite to the one end of the drum 110 on which the bearing cap 114 is disposed. The drive cap 115 may be arranged to be supported on an inner circumferential surface of the second drum body 112. The drive cap 115 may be secured to one end of the second drum body 112 and arranged such that the drum 110 is rotatably coupled to the drum mounting portion 124. The drum mounting portion 124 may rotatably support the drive cap 115. The drive cap 115 may be inserted into the second drum body 112 and supported on the inner circumferential surface of the second drum body 112.

[0109] The drive cap 115 may include a second cap fixing portion 115a, and the second drum body 112 may include a second body fixing portion corresponding to the second cap fixing portion 115a. The second cap fixing portion 115a and the second body fixing portion may be arranged to be coupled by a fastening member, similar to a coupling method of the first cap fixing portion 114a and the first body fixing portion 111a. As the fastening member is fastened to the second cap fixing portion 115a and the second body fixing portion, the drive cap 115 may be secured to the second drum body 112.

[0110] FIG. 10 illustrates a drum of a cleaner according to an embodiment of the present disclosure. FIG. 11 is an exploded view illustrating the drum of the cleaner according to an embodiment of the present disclosure.

[0111] With reference to FIGS. 10 and 11, a drum 210 according to an embodiment of the present disclosure will be described. In describing the drum 210 shown in FIGS. 10 and 11, the same reference numerals may be assigned to the same configurations as the drum 110 shown in FIGS. 6 to 9, and detailed descriptions thereof may be omitted.

[0112] Referring to FIGS. 10 and 11, the drum 210 according to an embodiment of the present disclosure may include the drum body 111 including the same configuration as the first drum body 111 shown in FIGS. 6 to 9. The drum 210 according to an embodiment of the present disclosure may include the bearing cap 114 including the same configuration as the bearing cap 114 shown in FIGS. 6 to 9. The drum 210 according to an embodiment of the present disclosure may include the drum brush 116 including the same configuration as the drum brush 116 shown in FIGS. 6 to 9.

[0113] The drum 210 according to an embodiment of the present disclosure may include a connecting body 213 including a configuration different from the connecting body 113 shown in FIGS. 6 to 9. The drum 210 according to an embodiment of the present disclosure may include the drum body 111 and the connecting body 213, the drum 210 may have a shorter length than a length of the drum 110 shown in FIGS. 6 to 9.

[0114] The connecting body 213 of the drum 210 according to an embodiment of the present disclosure may include a first connecting portion 2133 connectable to the body spaced portion 1113 of the drum body 111 when coupled to the drum body 111. When the connecting body 213 is coupled to the drum body 111, the first connecting portion 2133 may be in contact with the body spaced portion 1113.

[0115] The connecting body 213 of the drum 210 according to an embodiment of the present disclosure may include a second connecting portion 2134 connectable to the body connecting portion 1111 of the drum body 111 when coupled to the drum body 111. When the connecting body 213 is coupled to the drum body 111, the second connecting portion 2134 may be in contact with the body connecting portion 1111. The second connecting portion 2134 may be arranged to be spaced from the first connecting portion 2133 in the rotational axis direction of the drum 210.

[0116] In an example, the connecting body 213 may include a protruding portion to form the first connecting portion 2133. In an example, the connecting body 213 may include a portion having a groove shape to form the second connecting portion 2134.

[0117] In contrast to the drum 110 shown in FIGS. 6 to 9, which is configured to include the separate drive cap 115 rotatably supported on the intake head 100, the drum 210 according to an embodiment of the present disclosure may be configured such that the connecting body 213 is rotatably supported on the intake head 100.

[0118] In accordance with such a configuration, the drum 210 according to an embodiment of the present disclosure may have a shorter length compared to the drum 110 shown in FIGS. 6 to 9, and may thus be mounted to an intake head having a smaller size than the intake head 100 of the cleaner 1 shown in FIG. 1.

[0119] FIG. 12 illustrates a drum of a cleaner according to an embodiment of the present disclosure. FIG. 13 is an exploded view illustrating the drum of the cleaner according to an embodiment of the present disclosure.

[0120] A drum 310 according to an embodiment of the present disclosure will be described with reference to FIGS. 12 and 13. In describing the drum 310 shown in FIGS. 12 and 13, the same reference numerals may be assigned to the same configurations as the drums 110 and 210 shown in FIGS. 6 to 11, and detailed descriptions thereof may be omitted.

[0121] A drum 310 according to an embodiment of the present disclosure will be described with reference to FIGS. 12 and 13. In describing the drum 310 shown in FIGS. 12 and 13, the same reference numerals may be assigned to the same configurations as the drum 110 shown in FIGS. 6 to 9, and detailed descriptions thereof may be omitted.

[0122] Referring to FIGS. 12 and 13, the drum 310 according to an embodiment of the present disclosure may include the first drum body 111 including the same configuration as the first drum body 111 shown in FIGS. 6 to 9. The drum 310 according to an embodiment of the present disclosure may include the second drum body 112 including the same configuration as the second drum body 112 shown in FIGS. 6 to 9. The drum 210 according to an embodiment of the present disclosure may include the bearing cap 114 including the same configuration as the bearing cap 114 shown in FIGS. 6 to 9. The drum 310 according to an embodiment of the present disclosure may include the drive cap 115 including the same configuration as the drive cap 115 shown in FIGS. 6 to 9. The drum 210 according to an embodiment of the present disclosure may include the drum brush 116 including the same configuration as the drum brush 116 shown in FIGS. 6 to 9.

[0123] The drum 310 according to an embodiment of the present disclosure may include a connecting body 313 including a configuration different from the connecting body 113 shown in FIGS. 6 to 9. Since the drum 310 according to an embodiment of the present disclosure includes the connecting body 313 having a longer length than a length of the connecting body 113 shown in FIGS. 6 to 9, the drum 310 may have a longer length than the length of the drum 110 shown in FIGS. 6 to 9. In an example, the connecting body 313 may be configured such that an outer diameter thereof is the same along the rotational axis direction of the drum 310. For example, the connecting body 313 may include a portion whose diameter does not change along the rotational axis direction of the drum 310.

[0124] The connecting body 313 of the drum 310 according to an embodiment of the present disclosure may include a first connecting portion 3133 connectable to the first body spaced portion 1113 of the first drum body 111 when coupled to the first drum body 111. In response to the connecting body 313 being coupled to the first drum body 111, the first connecting portion 3133 may be in contact with the first body spaced portion 1113.

[0125] The connecting body 313 of the drum 310 according to an embodiment of the present disclosure may include a second connecting portion 3134 connectable to the first body connecting portion 1111 of the first drum body 111 when coupled to the first drum body 111. In response to the connecting body 313 being coupled to the first drum body 111, the second connecting portion 3134 may be in contact with the first body connecting portion 1111. The second connecting portion 3134 may be arranged to be spaced from the first connecting portion 3133 in the rotational axis direction of the drum 310.

[0126] In an example, the connecting body 313 may include a protruding portion to form the first connecting portion 3133. In an example, the connecting body 313 may include a portion having a groove shape to form the second connecting portion 3134.

[0127] The connecting body 313 of the drum 310 according to an embodiment of the present disclosure may include a third connecting portion 3137 connectable to the second body spaced portion 1124 of the second drum body 112 when coupled to the second drum body 112. In response to the connecting body 313 being coupled to the second drum body 112, the third connecting portion 3137 may be in contact with the second body spaced portion 1124.

[0128] The connecting body 313 of the drum 310 according to an embodiment of the present disclosure may include a fourth connecting portion 3138 connectable to the second body connecting portion 1121 of the second drum body 112 when coupled to the second drum body 112. In response to the connecting body 313 being coupled to the second drum body 112, the fourth connecting portion 3138 may be in contact with the second body connecting portion 1121. The fourth connecting portion 3138 may be arranged to be spaced from the third connecting portion 3137 in the rotational axis direction of the drum 310.

[0129] In an example, the connecting body 313 may include a protruding portion to form the third connecting portion 3137. In an example, the connecting body 313 may include a portion having a groove shape to form the fourth connecting portion 3138.

[0130] The connecting body 313 of the drum 310 according to an embodiment of the present disclosure may include a connecting brush mounting portion 3136 for detachably mounting at least a portion of the drum brush 116. The connecting brush mounting portion 3136 may protrude from an outer circumferential surface of the connecting body 313 to support at least a portion of the drum brush 116. The connecting brush mounting portion 3136 may be provided in a helical shape on the outer circumferential surface of the connecting body 313 to correspond to the drum brush 116. In an example, the connecting brush mounting portion 3136 may include a portion extending in a helical direction from which the first brush mounting portion 1116 extends, and a portion extending in a helical direction from which the second brush mounting portion 1126 extends. The connecting brush mounting portion 3136 may include a portion where the helical direction changes.

[0131] For example, the drum brush 116 may be arranged to be mounted to the connecting brush mounting portion 3136 in a sliding manner. The connecting brush mounting portion 3136 may include a guide rail 3136a for slidably mounting of the drum brush 116.

[0132] In accordance with such a configuration, the drum 310 according to an embodiment of the present disclosure may have a longer length compared to the drum 110 shown in FIGS. 6 to 9, and may thus be mounted to an intake head having a larger size than the intake head 100 of the cleaner 1 shown in FIG. 1.

[0133] The drums 110, 210 and 310 according to various embodiments of the present disclosure may be provided to have different lengths by combining a plurality of parts (e.g., the first drum body 111, the second drum body 112, the connecting bodies 113, 213 and 313, and the like).

[0134] Furthermore, since the drums 110, 210 and 310 according to various embodiments of the present disclosure include a structure such as the connection surface forming portion 1132 or the like to prevent foreign matter, such as hair, from being caught in boundary portion where a plurality of parts are connected, thereby improving ease of use.

[0135] FIG. 14 illustrates a state in which the drum is disassembled from a cleaner according to an embodiment of the present disclosure.

[0136] Although the cleaner 1 equipped with the intake head 100, such as a stick cleaner, has been described above, the drums 110, 210 and 310 of the present disclosure may also be mounted to a robot cleaner 2 (e.g., a robot vacuum cleaner) in which an intake head is not separately provided.

[0137] Referring to FIG. 14, the robot cleaner 2 may include a main body 200 movable on the surface to be cleaned, and a housing 201 forming an exterior of the main body 200.

[0138] The housing 201 may include an intake portion 201a to draw in foreign matter, such as dust, from the surface to be cleaned. The intake portion 201a may be provided on a lower surface of the main body 200. The intake portion 201a may be provided with the drum 110. The drum 110 may be rotatably mounted to the intake portion 201a.

[0139] In FIG. 14, although the robot cleaner 2 according to an embodiment of the present disclosure is shown as including the same drum 110 as the drum 110 shown in FIGS. 1 to 9, the present disclosure is not limited thereto, and may include the drum 210 shown in FIGS. 10 and 11, or the drum 310 shown in FIGS. 12 and 13, taking into account the size of the robot cleaner 2.

[0140] A cleaner according to an embodiment may include an intake portion, and a drum rotatably arranged in the intake portion. The drum may include a drum body in which an outer diameter of a first end of the drum body, along a rotational axis direction of the drum, is smaller than an outer diameter of a second end of the drum body opposite the first end, the drum body comprising a body connecting portion provided at the first end and a body spaced portion spaced from the body connecting portion along the rotational axis direction of the drum, and a connecting body couplable to the first end of the drum body, the connecting body comprising a connecting portion that, when the connecting body is coupled to the drum body, connects to the body spaced portion of the drum body.

[0141] The drum body may be a first drum body. A first end of the connecting body is couplable to the first end of the first drum body. The drum may further include a second drum body including a third end along the rotational axis direction of the drum having a third end outer diameter, and that is couplable to a second end of the connecting body opposite of the first end of the connecting body to which the first end of the first drum body is couplable, and a fourth end along the rotational axis direction of the drum opposite the third end of the second drum body and having a fourth end outer diameter that is larger than the third end outer diameter.

[0142] The body connecting portion of the first end may be a first body connecting portion. The connecting portion of the connecting body may be a first connecting portion. The connecting body may further include a second connecting portion on the second end of the connecting body. The third end of the second drum body may include a second body connecting portion couplable to the second end of the connecting body and connectable to the first body connecting portion. With the first end of the connecting body coupled to the first end of the first drum body and the second end of the connecting body coupled to the third end of the second drum body, the second body connecting portion may be coupled to the second end of the connecting body and the second body connecting portion is connected to the first body connecting portion.

[0143] The body spaced portion of the first end may be a first body spaced portion. The third end of the second drum body may include a second body spaced portion connectable to the second connecting portion. With the third end of the second drum body coupled to the second end of the connecting body, the second connecting portion is connected to the second body spaced portion.

[0144] The second body connecting portion may be spaced from the second body spaced portion along the rotational axis direction of the drum.

[0145] The body connecting portion of the first end may be a first body connecting portion. The body spaced portion of the first end may be a first body spaced portion. The third end of the second drum body may further include a second body connecting portion, and a second body spaced portion spaced from the second body connecting portion in the rotational axis direction of the drum.

[0146] The connecting portion of the connecting body may be a first connecting portion. The first end of the connecting body may further include a second connecting portion connectable to the first body connecting portion. The second end of the connecting body may include a third connecting portion connectable to the second body spaced portion, and a fourth connecting portion connectable to the second body connecting portion.

[0147] The first drum body may include a first material. The drum may further include a drum brush including a second material more flexible than the first material. The first drum body may include a first brush mounting portion to which a first portion of the drum brush is detachably mountable. The second drum body may include a second brush mounting portion to which a second portion of the drum brush is detachably mountable. The connecting body may include a connecting brush mounting portion to which a third portion of the drum brush is detachably mountable.

[0148] The first drum body may include a first body support portion into which at least a portion of the first end of the connecting body is insertable. The second drum body may include a second body support portion into which at least a portion of the second end of the connecting body is insertable. With the portion of the first end of the connecting body inserted into the first body support portion and the second end of the connecting body inserted into the second body support portion, the first drum body and the second drum body may be coupled to the connecting body.

[0149] The first drum body may include a first material. The second drum body may include a second material. The drum may further include a drum brush including a third material more flexible than the first material and the second material. The first drum body may include a first brush mounting portion to which at least a first portion of the drum brush is detachably mountable. The second drum body may include a second brush mounting portion to which at least a second portion of the drum brush is detachably mountable.

[0150] The first brush mounting portion may extend helically in a first direction along an outer circumferential surface of the first drum body. The second brush mounting portion may extend helically in a second direction along an outer circumferential surface of the second drum body, the first direction being different from the second direction. The first brush mounting portion and the second brush mounting portion may be connected at a boundary portion. The connecting body may include a blocking portion configured to cover at least partially a boundary portion.

[0151] With the connecting body coupled to the first drum body and the second drum body, the blocking portion may form a portion of an outer circumferential surface of the drum.

[0152] The connecting portion of the connecting body may be a first connecting portion. The connecting body may further include a second connecting portion connectable to the body connecting portion. With the connecting body coupled to the first end of the drum body the second connecting portion is connected to the body connecting portion.

[0153] The connecting body may include a connection surface forming portion. With the connecting body coupled to the first end of the drum body, the connection surface forming portion may form at least a portion of an outer circumferential surface of the drum.

[0154] The connecting body may include a diameter that does not change along the rotational axis direction of the drum.

[0155] A cleaner according to an embodiment may include an intake portion, and a drum rotatably arranged at the intake portion. The drum may include a first drum body in which an outer diameter of a first end thereof along a rotational axis direction of the drum is smaller than an outer diameter of a second end opposite the first end, a second drum body in which an outer diameter of a third end thereof, which is proximal to the first drum body along the rotational axis direction of the drum, is smaller than an outer diameter of a fourth end opposite the third end, and a connecting body couplable to the first end of the first drum body and the third end of the second drum body, the connecting body including a connection surface forming portion that, when the connecting body is coupled to the first drum body and the second drum body, forms an outer circumferential surface of the drum.

[0156] The drum may include a drum brush including a material more flexible than the first drum body and the second drum body. The first drum body may include a first brush mounting portion to which at least a portion of the drum brush is detachably mountable, the first brush mounting portion being provided helically along an outer circumferential surface of the first drum body. The second drum body may include a second brush mounting portion to which at least a portion of the drum brush is detachably mountable, the second brush mounting portion extending helically along an outer circumferential surface of the second drum body, but extending in a direction different from a direction in which the first brush mounting portion extends.

[0157] The connecting body may include a blocking portion configured to cover at least a portion of a boundary portion where the first brush mounting portion and the second brush mounting portion are connected, the blocking portion being configured to form a portion of an outer circumferential surface of the drum when the connecting body is coupled to the first drum body and the second drum body.

[0158] The connecting body may include a connecting brush mounting portion to which at least a portion of the drum brush is detachably mountable, the connecting brush mounting portion being connected to the first brush mounting portion and the second brush mounting portion.

[0159] A boundary portion where the first drum body and the second drum body are connected may be configured to be spaced from the boundary portion where the first drum body and the connecting body are connected in the rotational axis direction of the drum.

[0160] According to the spirit of the present disclosure, the drum of the cleaner may be configured to be made in various sizes by combining a plurality of parts, thereby improving its utilization.

[0161] The effects to be obtained from the present disclosure are not limited to those mentioned above, and other effects not mentioned will be apparent to a person skilled in the art to which the present disclosure belongs from the following description.

[0162] Although specific embodiments have been illustrated and described above, the present disclosure is not limited to the above-described embodiments, and various changes and modifications can be made by those skilled in the art without departing from the gist of the technical spirit of the invention described in the claims below.