Abstract:
Disclosed herein is a vacuum cleaner having an improved structure capable of removing hair and foreign substances wound around a drum brush. The vacuum cleaner includes a cleaner main body, a suction brush connected to the cleaner main body and including a suction channel configured to clean a surface to be cleaned by suction force, and a drum brush case provided to be detachable in a forward direction from the suction brush and configured to form an intake port connected to the suction channel.

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
       [0001]    This application claims the benefit of Korean Patent Application No. 10-2015-0123979, filed on Sep. 2, 2015 in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference. 
       BACKGROUND 
       [0002]    1. Field 
         [0003]    Embodiments of the present disclosure relate to a vacuum cleaner, and more particularly, to a vacuum cleaner having an improved structure capable of removing hair and foreign substances wound around a drum brush. 
         [0004]    2. Description of the Related Art 
         [0005]    As cleaner is an apparatus that cleans by removing foreign substances indoors, a vacuum cleaner is normally used at home. A vacuum cleaner is an apparatus which suctions air including foreign substances of a surface to be cleaned, separates and collects the foreign substances from the air, and discharges purified air to the outside of the vacuum cleaner main body. 
         [0006]    Such a vacuum cleaner is roughly classified as a canister type or an upright type. 
         [0007]    Of the two, a canister cleaner includes a main body in which a blowing fan and a dust collector are embedded, a suction body separately installed from the main body to suction dust on a floor, and a connection pipe which connects the main body and the suction body. Therefore, a user grabs a handle installed at the connection pipe and moves the suction body in an intended direction for cleaning. 
         [0008]    In contrast, an upright cleaner includes a main body of an upright type and a suction body integrally coupled to a lower portion of the main body. Therefore, a user grabs a handle provided at an upper side of the main body and moves the entire main body of the upright cleaner for cleaning. 
         [0009]    Particularly, in the upright cleaner, a drum brush is installed inside the suction body to enhance cleaning efficiency. Such a drum brush rotates at a high speed while being in contact with a surface to be cleaned and separates foreign substances from the surface to be cleaned, and the separated foreign substances are suctioned into the suction body and then introduced into a dust collector provided in the main body. 
         [0010]    Meanwhile, some of the foreign substances suctioned into the suction body at high speed are wound around and adhered to the drum brush due to rotational force of the rotating drum brush and then rotate together with the drum brush, which can cause degradation in cleaning efficiency. 
       SUMMARY 
       [0011]    Therefore, it is an aspect of the present disclosure to provide a vacuum cleaner having an improved structure capable of removing hair and foreign substances wound around a drum brush. 
         [0012]    In accordance with one aspect of the present disclosure, a vacuum cleaner includes a cleaner main body, a suction brush connected to the cleaner main body and including a suction channel configured to clean a surface to be cleaned by suction force, and a drum brush case provided to be detachable in a forward direction from the suction brush and configured to form an intake port connected to the suction channel. 
         [0013]    The drum brush case may include a drum brush rotatably provided therein. 
         [0014]    The vacuum cleaner may further include a connection member which detachably connects the drum brush case and the suction brush. 
         [0015]    The drum brush case may include a case frame and a case cover coupled to the case frame and configured to form an accommodating space in which the drum brush is accommodated. 
         [0016]    The drum brush case may include a guide portion which guides separation from or coupling to the suction brush. 
         [0017]    The guide portion may include a guide protrusion formed at the drum brush case and a guide groove formed at the suction brush so that the guide protrusion is inserted therein. 
         [0018]    The connection member may include a first connection portion provided at the drum brush case and a second connection portion provided at the suction brush so that the first connection portion is coupled thereto. 
         [0019]    The first connection portion may include a connection bracket in which a support portion is formed to rotatably support the drum brush and a button member elastically supported by the connection bracket. 
         [0020]    The vacuum cleaner may further include an elastic member which provides a support between the connection bracket and the button member elastically. 
         [0021]    The second connection portion may include any one of a hole and a slit to which the button member is connected. 
         [0022]    The support portion may include a support hole in which the drum brush is rotatably supported, at least one support protrusion formed to be spaced in a circumferential direction of the support hole, and a bearing provided between the support hole and the support protrusion so that the drum brush is rotatably connected. 
         [0023]    The case cover may include a drum brush installation portion formed so that the drum brush is detachable, and at least one remover protrusion formed to be spaced in a circumferential direction of the drum brush installation portion. 
         [0024]    The remover protrusion may be formed to protrude radially inward of the drum brush installation portion. 
         [0025]    The remover protrusion may be slanted radially inward of the drum brush installation portion. 
         [0026]    The suction brush may include a driving part provided to rotate the drum brush. 
         [0027]    The connection bracket may be bent from and coupled to an end of one side of the drum brush for a user to grab. 
         [0028]    In accordance with another aspect of the present disclosure, a vacuum cleaner includes a cleaner main body, a suction brush connected to the cleaner main body to suction dust on the surface to be cleaned, a drum brush case detachably coupled to a front of the suction brush and including a drum brush which is rotatably provided therein, and a connection member which detachably connects the drum brush case and the suction brush. 
         [0029]    The connection member may include a first connection portion provided at the drum brush case, and a second connection portion formed at the suction brush to correspond to the first connection portion. 
         [0030]    The first connection portion may include a connection bracket in which a support portion is formed to support the drum brush; and a button member which is elastically supported by the connection bracket. 
         [0031]    The support portion may include a support hole provided so that the drum brush is rotatably supported, at least one support protrusion formed to be spaced each other in a circumferential direction of the support hole, and a bearing provided between the support hole and the support protrusion so that the drum brush is rotatably connected. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0032]    These and/or other aspects of the disclosure will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which: 
           [0033]      FIG. 1  is a perspective view illustrating a vacuum cleaner according to one embodiment of the present disclosure; 
           [0034]      FIG. 2  is a view illustrating a suction brush of a vacuum cleaner according to one embodiment of the present disclosure; 
           [0035]      FIG. 3  is an exploded perspective view illustrating a suction brush of a vacuum cleaner according to one embodiment of the present disclosure; 
           [0036]      FIG. 4  is an exploded perspective view illustrating a suction brush and a drum brush case according to one embodiment of the present disclosure; 
           [0037]      FIG. 5  is a view illustrating a suction brush and a drum brush case according to one embodiment of the present disclosure; 
           [0038]      FIG. 6  is an exploded perspective view illustrating a driving part of a suction brush according to one embodiment of the present disclosure; 
           [0039]      FIG. 7  is an exploded perspective view illustrating a suction brush case according to one embodiment of the present disclosure; 
           [0040]      FIG. 8  is an enlarged view of region A of  FIG. 5  illustrating a connection member for connecting a suction brush and a drum brush case according to one embodiment of the present disclosure; 
           [0041]      FIG. 9  is a view illustrating an operation of a connection member for separating a suction brush and a drum brush case according to one embodiment of the present disclosure; 
           [0042]      FIG. 10  is an enlarged view illustrating a guide portion which guides a movement of a drum brush case which is separated in a forward direction from a suction brush according to one embodiment of the present disclosure; 
           [0043]      FIG. 11  is a view illustrating a drum brush separated from a drum brush case according to one embodiment of the present disclosure; and 
           [0044]      FIG. 12  is a view illustrating a state in which hair and foreign substances are cleaned when a drum brush is separated from a drum brush case according to one embodiment of the present disclosure. 
       
    
    
     DETAILED DESCRIPTION 
       [0045]    Hereinafter, a preferred embodiment according to the present disclosure will be described in detail with reference to the accompanying drawings. Meanwhile, terms used in the following descriptions such as “front,” “rear,” “upper,” “lower,” “top,” “bottom,” and the like are defined based on the drawings, and shapes and positions of each constituting element are not limited by these terms. 
         [0046]      FIG. 1  is a perspective view illustrating a vacuum cleaner according to one embodiment of the present disclosure,  FIG. 2  is a view illustrating a suction brush of a vacuum cleaner according to one embodiment of the present disclosure, and  FIG. 3  is an exploded perspective view illustrating a suction brush of a vacuum cleaner according to one embodiment of the present disclosure. 
         [0047]    As illustrated in  FIGS. 1 to 3 , a vacuum cleaner  1  is an upright type vacuum cleaner and includes a suction brush  20  provided to suction foreign substances including hair, etc. of a surface to be cleaned (a floor and a carpet) by air suction force and a cleaner main body  10  provided to collect foreign substances suctioned via the suction brush  20 . 
         [0048]    The cleaner main body  10  may include a motor (not shown) which generates a suction force required for suctioning foreign substances of a surface to be cleaned and a dust collector (not shown) in which the foreign substances suctioned from the surface cleaned are accumulated. 
         [0049]    The cleaner main body  10  and the suction brush  20  may be directly connected without using a separate hose. A handle  11  is provided on an upper side of the cleaner main body  10  for a user to operate. A switch  12  may be provided at the handle  11  to control the motor. 
         [0050]    Therefore, a user grabs the handle  11  and moves the cleaner main body  10  after the motor is started by the switch  12 , and thereby dust and foreign substances are suctioned in via the suction brush  20  and collected in the cleaner main body  10 . 
         [0051]    The suction brush  20  is provided to be connected to a lower end of the cleaner main body  10 . The suction brush  20  includes a suction brush case  21 . 
         [0052]    A first intake port  41  may be formed at a lower surface of the suction brush case  21 . A suction channel  40  is formed in the suction brush case  21  for air and foreign substances suctioned via the first intake port  41  to move. The suction channel  40  of the suction brush case  21  is connected to the cleaner main body  10 . 
         [0053]    The suction brush case  21  includes an upper case  21   a  and a lower case  21   b . The upper case  21   a  forms an exterior of an upper side of the suction brush  20 , and the lower case  21   b  forms an exterior of a lower side of the suction brush  20  under the upper case  21   a . The cleaner main body  10  may be connected with the suction brush case  21  via a suction connection portion  22 . The suction connection portion  22  includes a first suction connection portion  22   a  formed at the upper case  21   a  and a second suction connection portion  22   b  formed at the lower case  21   b . The first suction connection portion  22   a  and the second suction connection portion  22   b  are formed to be connected in shapes corresponding to each other. The first suction connection portion  22   a  and the second suction connection portion  22   b  may be connected to the suction channel  40  of the suction brush  20 . 
         [0054]    The lower case  21   b  is provided at the lower end of the cleaner main body  10 . A wheel installation portion  23  in which a wheel (not shown) is installed may be provided to move the cleaner main body  10  at the lower case  21   b.    
         [0055]    In addition, the lower case  21   b  may include a driving part installation portion  25  in which a driving part  30  for driving a rotation of a drum brush  140 , which is to be described below, is installed and a connection member installation portion  272  provided for installing a connection member  200 . 
         [0056]    Meanwhile, the suction brush  20  may be provided with the drum brush  140  to easily perform cleaning for a carpet or the like. 
         [0057]    The drum brush  140  may be rotatably provided in a drum brush case  100 . The drum brush case  100  may be provided to be detachable in a forward direction (a first direction F) from the suction brush case  21 . 
         [0058]      FIG. 4  is an exploded perspective view illustrating the suction brush and the drum brush case according to one embodiment of the present disclosure,  FIG. 5  is a view illustrating the suction brush and the drum brush case according to one embodiment of the present disclosure,  FIG. 6  is an exploded perspective view illustrating the driving part of the suction brush according to one embodiment of the present disclosure, and  FIG. 7  is an exploded perspective view illustrating the suction brush case according to one embodiment of the present disclosure. 
         [0059]    As illustrated in  FIGS. 4 to 7 , the drum brush  140  is rotatably installed in the drum brush case  100  in a lateral direction. 
         [0060]    The drum brush case  100  includes a case cover  110  provided with an accommodation portion for accommodating the drum brush  140  and a case frame  120  to which the case cover  110  is coupled. 
         [0061]    A second intake port  42  connected with the first intake port  41  of the suction brush  20  is formed at a lower surface of the drum brush case  100 , and the second intake port  42  is connected with the suction channel  40  of the suction brush  20 . The second intake port  42  may be formed at a position corresponding to the first intake port  41 . 
         [0062]    Dust and foreign substances on a surface to be cleaned which are suctioned via the first intake port  41  of the suction brush  20  and the second intake port  42  of the drum brush case  100  are collected to the cleaner main body  10  via the suction channel  40 . 
         [0063]    Meanwhile, the drum brush  140  may be provided with a rotating drum  140   a  in a cylindrical shape and a brush (not shown) installed on an outer circumferential surface of the rotating drum  140   a  in a spiral or parallel shape. The brush is exposed to the outside of the second intake port  42  and serves a role of brushing foreign substances including dust or the like on a surface to be cleaned by a rotation of the drum brush  140  and guiding the foreign substances into the cleaner main body  10  via the first intake port  41  and the second intake port  42 . 
         [0064]    The drum brush  140  may include a remover groove  142  formed in an outer circumferential surface of the rotating drum  140   a . At least one remover groove  142  may be formed in the outer circumferential surface of the rotating drum  140   a  in a spiral or parallel shape. 
         [0065]    The drum brush case  100  may include the case frame  120  and the case cover  110  coupled to the case frame  120  to form an accommodation space in which the drum brush  140  is accommodated. Although an example in which the case frame  120  and the case cover  110  are individually provided and are coupled to each other is illustrated in the embodiment of the present disclosure, the spirit of the present disclosure is not limited thereto. For example, the case frame and the case cover may be integrally formed. 
         [0066]    The case frame  120  may be formed in a length corresponding to a front portion of the suction brush  20 . The case frame  120  may be formed to be coupled to the front portion of the suction brush  20 . An auxiliary wheel installation portion  121  may be formed in the front of the case frame  120  for an auxiliary wheel  24  to be installed. The auxiliary wheel  24  may help the suction brush  20  move together with the wheel installed at the wheel installation portion  23  of the suction brush  20 . 
         [0067]    The case cover  110  may be formed to cover an upper surface of the case frame  120 . A drum brush installation portion  111  is formed at one side of the case cover  110  for the drum brush  140  to be installed thereat. The drum brush installation portion  111  may include a hole in a circular form so that the drum brush  140  may pass through an end of one side of the case cover  110 . 
         [0068]    Meanwhile, one side of the drum brush  140  may be installed at the drum brush installation portion  111  of the case cover  110 , and the other side may be installed at a drum brush installation hole  26  formed at the lower case  21   b  of the suction brush  20 . 
         [0069]    The case cover  110  may include the drum brush installation portion  111  formed so that the drum brush  140  is detachable and a remover protrusion  112  formed to be spaced in a circumferential direction of the drum brush installation portion  111 . At least one remover protrusion  112  may be formed at the drum brush installation portion  111 . The remover protrusion  112  may be formed in a size corresponding to the remover groove  142  of the drum brush  140  for being inserted therein. The remover protrusion  112  may guide a movement of the drum brush  140  when the drum brush  140  is separated from the case cover  110 . 
         [0070]    The remover protrusion  112  may be obliquely formed in a radially inward direction of a drum brush installation hole  26 . The remover protrusion  112  may be obliquely formed in a direction opposite to a separation direction (a second direction R) of the drum brush  140 . Foreign substances including hair and the like wound around an outer circumferential surface of the drum brush  140  are caught by the remover protrusion  112  and collected at the remover protrusion  112  due to the slope of the remover protrusion  112 . 
         [0071]    Therefore, during separating the drum brush  140  from the case cover  110 , the drum brush  140  may be separated via the drum brush installation portion  111  while the remover protrusion  112  is guided by the remover groove  142  of the case cover  110 . 
         [0072]    Here, the foreign substances including hair and the like wound around or stuck on the outer circumferential surface of the drum brush  140  may be clumped by the remover protrusion  112  of the case cover  110 . 
         [0073]    The drum brush installation portion  111  is provided to be connected with the driving part installation portion  25  of the suction brush  20 . The driving part  30  provided to rotate the drum brush  140  is installed at the drum brush installation portion  111  and the driving part installation portion  25 . 
         [0074]    The driving part  30  may include a motor  31 , a belt  32  which transfers driving force of the motor  31  to the drum brush  140 , and a pulley  33  which connects the belt  32  and the drum brush  140 . 
         [0075]    Here, the motor  31  and the belt  32  may be installed at the driving part installation portion  25 , and the pulley  33  for connecting the drum brush  140  with the belt  32  may be installed at a drum brush installation hole  26 . 
         [0076]    The motor  31  may include a motor shaft  31   a . One side of the belt  32  is coupled to the motor shaft  31   a  of the motor  31 . A sawtooth  32   a  may be formed on an inner circumferential surface of the belt  32 . 
         [0077]    A pulley sawtooth  33   a  in a shape corresponding to the sawtooth  32   a  may be formed at an outer circumferential surface of the pulley  33  which is coupled to the belt  32 . 
         [0078]    Accordingly, the belt  32  which connects the motor shaft  31   a  of the motor  31  and the pulley sawtooth  33   a  of the pulley  33  may transfer the driving force of the motor  31  to the pulley  33  to rotate the pulley  33 . 
         [0079]    Meanwhile, a drum brush accommodation groove  34  to which the drum brush  140  is coupled is formed at the pulley  33  so that the pulley  33  is connected with the drum brush  140 . The drum brush accommodation groove  34  is formed in a shape corresponding to a shape of one end of the drum brush  140 . A rotation protrusion  35  for rotating the drum brush  140  is formed at the drum brush accommodation groove  34 . The rotation protrusion  35  is formed to correspond to an insertion groove  145   a  of the drum brush  140 . 
         [0080]    The insertion groove  145   a  and an insertion protrusion  145   b  are formed at one side of the drum brush  140 . The rotation protrusion  35  of the drum brush accommodation groove  34  may be coupled to the insertion groove  145   a , and the insertion protrusion  145   b  may be coupled to the drum brush accommodation groove  34 . Rotation of the pulley  33  may be transferred to the drum brush  140  due to the insertion groove  145   a , the insertion protrusion  145   b  of the drum brush  140 , the drum brush accommodation groove  34 , and the rotation protrusion  35  of the pulley  33 . 
         [0081]    A rotating shaft  141  is formed at the other side of the drum brush  140 . The rotating shaft  141  may be rotatably connected to a bearing  234  which is to be described below. 
         [0082]    The connection member installation portion  272  for installing the connection member  200  is provided at the case frame  120  of the drum brush case  100 . The connection member installation portion  272  is integrally formed at one end portion of the case frame  120 . The connection member installation portion  272  extends bent at one end portion of the case frame  120 . 
         [0083]    The connection member  200  is provided to detachably connect the drum brush case  100  and the suction brush  20 . 
         [0084]    The connection member  200  may include a first connection portion  210  provided at the drum brush case  100  and a second connection portion  220  provided at the suction brush  20  so that the first connection portion  210  is detachably coupled thereto. 
         [0085]    The first connection portion  210  may include a connection bracket  211  which forms an exterior and a button member  212  which is elastically supported by the connection bracket  211 . 
         [0086]    The first connection portion  210  may include an elastic member  213  provided to support between the connection bracket  211  and the button member  212  elastically. Although an example in which the button member  212  is elastically supported by the connection bracket  211  due to the elastic member  213  is illustrated in the embodiment of the present disclosure, the spirit of the present disclosure is not limited thereto. For example, the button member  212  may include a leaf spring. 
         [0087]    The connection bracket  211  is formed in a shape corresponding to a shape of the connection member installation portion  272  of the drum brush case  100 . The connection bracket  211  may include a support portion  230  by which the drum brush  140  is rotatably supported. 
         [0088]    The support portion  230  may include a support hole  231  by which the drum brush  140  is rotatably supported, a support protrusion  233  formed to be spaced in a circumferential direction, and the bearing  234  provided between the support hole  231  and the support protrusion  233  so that the drum brush  140  is rotatably connected. 
         [0089]    The support portion  230  may include a bearing accommodation portion  232  in which the bearing  234  is accommodated. The bearing accommodation portion  232  may be formed between the support hole  231  and the support protrusion  233 . The bearing  234  accommodated in the bearing accommodation portion  232  is connected to the rotating shaft  141  of the drum brush  140  via the support hole  231 . 
         [0090]    The support protrusion  233  is formed to protrude toward the center of a circle at an outer side of the support hole  231  to prevent separation of the bearing  234 . At least one support protrusion  233  may be disposed with a regular gap in a circumferential direction. 
         [0091]    The button member  212  is installed to be elastically supported at the connection bracket  211 . The button member  212  is formed in a board shape. The button member  212  is formed in a shape corresponding to the connection bracket  211 . The button member  212  may be disposed at outer side of the bearing  234 . The elastic member  213  is provided between the connection bracket  211  and the button member  212 . The elastic member  213  generates elastic force between the connection bracket  211  and the button member  212  and may return back to an original position, when pressed and moved by a user. 
         [0092]    The button member  212  in the board shape further includes a pressing surface  212   a  formed to be easily pressed by a user. 
         [0093]    The button member  212  includes a hinge shaft  214  formed to protrude therefrom in order to support rotation of the button member  212 . A hinge hole  215  to which the hinge shaft  214  of the button member  212  is coupled is formed at the connection bracket  211 . 
         [0094]    Therefore, when a user presses the button member  212 , the button member  212  rotates about the hinge shaft  214  coupled to the hinge hole  215  of the connection bracket  211  so as to press and move the elastic member  213 . 
         [0095]    Here, the button member  212  includes a stopper  216  formed to restrict the movement thereof. A stopper groove  216   a  corresponding to the stopper  216  of the button member  212  is formed at the connection bracket  211 . 
         [0096]    When the user completes pressing, the button member  212  returns back to the original position. Here, the stopper  216  is caught by the stopper groove  216   a , and the movement is restricted. 
         [0097]    Meanwhile, the second connection portion  220  is provided at the suction brush  20 . The second connection portion  220  may include a connection hole  221  formed at the upper case  21   a  of the suction brush  20  and a connection member installation portion  272  provided at the lower case  21   b . The connection hole  221  and the connection member installation portion  272  are formed at corresponding positions to be connected by a coupling of the upper case  21   a  and the lower case  21   b . The connection member installation portion  272  is formed in a recessed shape so that the first connection portion  210  is inserted therein. The first connection portion  210  inserted in the connection member installation portion  272  may be exposed to the outside of the suction brush  20  via the connection hole  221 . Although the second connection portion  220  including the connection hole  221  by which a part of the upper case  21   a  is open is taken as an example and illustrated in the embodiment of the present disclosure, the spirit of the present disclosure is not limited thereto. For example, the second connection portion  220  may further include a button method. 
         [0098]      FIG. 8  is an enlarged view of region A of  FIG. 5  illustrating the connection member for connecting the suction brush and the drum brush case according to one embodiment of the present disclosure,  FIG. 9  is a view illustrating an operation of the connection member for separating the suction brush and the drum brush case according to one embodiment of the present disclosure, and  FIG. 10  is an enlarged view illustrating a guide portion which guides a movement of the drum brush case which is separated in a forward direction from the suction brush according to one embodiment of the present disclosure. 
         [0099]    The drum brush  140  is provided at an accommodation space formed by the case cover  110  of the drum brush case  100 . The drum brush  140  is rotatably installed in the drum brush case  100 . The drum brush case  100  at which the rotatable drum brush  140  is provided may be detachably installed at the suction brush  20  by the connection member  200 . 
         [0100]    The connection member  200  is coupled to the second connection portion  220  of the suction brush  20  by the first connection portion  210  formed at the drum brush case  100 . 
         [0101]    The button member  212  of the connection member  200  is exposed to the outside of the suction brush  20  by the connection hole  221  of the second connection portion  220 . 
         [0102]    When a user presses the button member  212  exposed to the outside, the button member  212  moves about the hinge shaft  214  toward the inside (arrow) of the connection bracket  211 . 
         [0103]    The button member  212  is moved by pressing the elastic member  213 . When the button member  212  moves toward the inside and releases lock between the button member  212  of the first connection portion  210  and the connection hole  221  of the second connection portion  220 , the drum brush case  100  is separated in a forward direction from the suction brush  20 , that is, in the first direction F. 
         [0104]    Here, a guide portion  130  is provided, which guides separation between the drum brush case  100  and the suction brush  20 . The guide portion  130  may include a guide protrusion  131  provided at the drum brush case  100  and a guide groove  132  provided at the suction brush  20 . 
         [0105]    The guide protrusion  131  is provided at the case frame  120  of the drum brush case  100 . The guide protrusion  131  is formed to have a predetermined curvature. The guide protrusion  131  may stably guide a movement of the drum brush case  100  which is moved in the first direction F by the connection member  200 . The guide groove  132  is provided at one side of the suction brush  20 . The guide groove  132  may be disposed in front of the drum brush installation hole  26  of the suction brush  20 . 
         [0106]    By a coupling of the guide protrusion  131  and the guide groove  132 , the drum brush  140  may be guided to the drum brush accommodation groove  34  and stably coupled to the pulley  33 . Although an example in which the guide protrusion is formed at the drum brush case and the guide groove is provided at the suction brush is illustrated in the embodiment of the present disclosure, the spirit of the present disclosure is not limited thereto. For example, the guide protrusion may be provided at the suction brush, and the guide groove may be provided at the drum brush case. 
         [0107]    Meanwhile, the button member  212  returns back to the original position when the separation of the drum brush case  100  is completed. Here, the stopper  216  of the button member  212  is caught by the stopper groove  216   a  and supports and prevents the button member  212  from being deviated to the outside of the connection bracket  211 . 
         [0108]      FIG. 11  is a view illustrating the drum brush separated from the drum brush case according to one embodiment of the present disclosure, and  FIG. 12  is a view illustrating a state in which hair and foreign substances are cleaned when the drum brush is separated from the drum brush case according to one embodiment of the present disclosure. 
         [0109]    The drum brush  140  installed in the drum brush case  100  and separated from the suction brush  20  may be separated from the drum brush case  100  by pulling the first connection portion  210  of the connection member  200  in the second direction R of the drum brush case  100 . 
         [0110]    The first connection portion  210  of the connection member  200  is coupled to the drum brush  140  in order to be grabbed by a user. The rotating shaft  141  of the drum brush  140  is coupled to the bearing  234  installed in the connection bracket  211 , and thereby the connection bracket  211  of the first connection portion  210  is provided to be separated together with the drum brush. 
         [0111]    Meanwhile, the drum brush  140  separated from the drum brush case  100  may be moved in an outward direction from the drum brush case  100  while the remover groove  142  of the drum brush  140  is guided by the remover protrusion  112  of the drum brush case  100 . 
         [0112]    Here, foreign substances including hair or the like jammed or wound around the remover groove  142  of the drum brush  140  is caught and collected by the remover protrusion  112  formed at the drum brush installation portion  111  of the drum brush case  100 . 
         [0113]    The foreign substances including hair and the like are collected to the drum brush case  100  by the remover protrusion  112 , and the drum brush  140  may be separated from the drum brush case  100  in a clean state. 
         [0114]    Meanwhile, by separating the drum brush  140  from the drum brush case  100  at around a garbage can B, the foreign substances including hair and the like may be thrown into the garbage can B right away. 
         [0115]    Accordingly, user convenience can be enhanced because the drum brush  140  can be cleaned without moving the cleaner main body  10  by separating the drum brush case  100  in a forward direction from the suction brush  20  and only with an operation of pulling out the first connection portion  210  connected to the drum brush  140 . 
         [0116]    As is apparent from the above description, hair and foreign substances wound around the drum brush can be easily removed. 
         [0117]    In addition, user convenience can be enhanced because the drum brush case is separable. 
         [0118]    Some particular embodiments have been illustrated and described above. However, without being limited to the embodiments described as above, those skilled in the art will readily appreciate that many modifications are possible in embodiments without departing from the spirit and the essential features of the disclosure described in the claims below.