Patent Grant
12150615
This application is the National Phase of PCT International Application No. PCT/KR2020/016364, filed on Nov. 19, 2020, which claims priority under 35 U.S.C. 119 (a) to Korean Patent Application No. 10-2020-0005625, filed in the Republic of Korea on Jan. 15, 2020, all of which are hereby expressly incorporated by reference into the present application.
The present disclosure relates to a vacuum cleaner, and more particularly, to a vacuum cleaner capable of cleaning dust on a cleaning surface by using a rotating brush.
Vacuum cleaners may have different cleaning capabilities depending on the type of brush mounted therein.
When cleaning floors or papered floors with a smooth cleaning surface, a floor brush made of soft flannel is advantageous in terms of cleaning efficiency.
However, when cleaning soft cleaning surfaces such as sofas, blankets, or carpets, a carpet brush made of a stiff plastic material is advantageous in terms of cleaning efficiency.
In this regard, Korean Patent Registration No. 1917702 (hereinafter referred to as ‘Related Art’) discloses a cleaner. The cleaner according to the Related Art includes a main body, a rotation driver, and a cleaning module.
The main body includes a module mounting portion therein. The rotation driver is disposed on one side of the module mounting portion. The cleaning module is detachably mounted to the module mounting portion through one side of the main body of the cleaner. The cleaning module includes a holder and a cleaning member.
The holder is inserted into or taken out of the module mounting portion in an axial direction of the cleaning member. The cleaning member is rotatably supported by the holder. The cleaning member is rotated by a driving force provided from the rotation driver.
The cleaning module is detachably mounted to the module mounting portion through one side of a housing. A hook manipulating member is provided on a second side cover. The cleaning module is separated from the housing by a user manipulating the hook manipulating member. When the cleaning module is taken out of the housing, an inner cover is exposed. The second side cover and the inner cover are detachably coupled to each other.
A second member is provided with a hook-coupling member. An insertion hole is formed in the inner cover. The hook-coupling member is hook-coupled to the inner cover through the insertion hole. When the user causes the hook manipulating member to move linearly, the hook-coupling member moves linearly to release the hook-coupling.
When the cleaner is used, the cleaning member generates a frictional force with the cleaning surface while rotating. The cleaning surface may be a blanket or a carpet. The user cleans the cleaning surface while moving the main body. The main body may be turned in a left-right direction while moving. Alternatively, the main body may be turned in a forward and backward direction and an inclined direction while moving.
When the cleaner is used, a reaction force and a friction force of the cleaning surface are continuously applied to the cleaning member. When the direction of the main body is changed, the reaction force and the friction force of the cleaning surface may be applied to the cleaning member in the axial direction. Accordingly, a coupling force between the second side cover and the inner cover should be sufficiently greater than the axial force applied to the cleaning member.
The hook-coupling between the hook-coupling member and the insertion hole generates the coupling force between the second side cover and the inner cover. In mechanical devices, there is necessarily a gap between components. The hook-coupling member is movably mounted on the second side cover. There is the gap between the second side cover and the hook-coupling member. There is also the gap between the hook-coupling member and the inner cover. That is, there are a plurality of gaps between the second side cover and the inner cover.
Accordingly, the cleaner disclosed in the Related Art has a disadvantage in that the second side cover is shaken in the axial direction by the axial force applied to the cleaning member. The shaking of the second side cover causes noise and wear due to collision between the second side cover and the housing. There is a need for a method to reduce the above-mentioned noise and wear while the cleaner is in use.
In the cleaner disclosed in the Related Art, in order to couple the cleaning module to the main body, the user should {circle around (a)} cause the hook manipulating member to move linearly, and {circle around (b)} subsequently, push the cleaning module in the axial direction of the cleaning member. Then, the user should {circle around (c)} insert the hook-coupling member into the insertion hole by causing the hook manipulating member to move linearly.
That is, in the cleaner disclosed in the Related Art, in order to couple the cleaning module to the main body, the user should proceed with three steps of {circle around (a)}, {circle around (b)}, and {circle around (c)}. However, elderly people or children may have difficulty in proceeding with the three steps of {circle around (a)}, {circle around (b)}, and {circle around (c)}.
When a spring is mounted to the hook-coupling member, the hook-coupling member may be inserted into the insertion hole only by pushing the cleaning module in the axial direction of the cleaning member. An inclined surface is formed at the hook-coupling member. When the cleaning module is moved in the axial direction of the cleaning member, the hook-coupling member slides into the insertion hole through the inclined surface.
In order for the hook-coupling member to slide into the insertion hole through the inclined surface, the inclined surface should be inclined at a small angle of approximately 45 degrees or less to the axial direction of the cleaning member. However, when the inclined surface is inclined at such a small angle to the axial direction of the cleaning member, there is a disadvantage in that the contact area between the hook-coupling member and the inner cover is small.
In addition, in order to separate the cleaning module from the main body, the user should {circle around (1)} cause the hook manipulating member to move linearly and {circle around (2)} pull the cleaning module in the axial direction of the cleaning member. However, when the spring is mounted to the hook-coupling member, the user should proceed with two steps of {circle around (1)} and {circle around (2)} at the same time. Accordingly, elderly people or children may have difficulty in proceeding with the two steps of {circle around (1)} and {circle around (2)} at the same time.
The present disclosure is directed to providing a vacuum cleaner configured to prevent noise and wear due to collision between a detachable cover and a housing, which is caused by an axial force applied to a rotating brush.
The present disclosure is further directed to providing a vacuum cleaner configured such that a housing and a brush module can be easily coupled to or separated from each other.
The present disclosure is still further directed to a vacuum cleaner configured such that a housing and a brush module can be firmly coupled to each other in an axial direction of a rotating brush.
In a vacuum cleaner according to embodiments of the present disclosure, an insertion member may be inserted into an insertion hole in a first direction, and as a button is moved, a first protrusion may be selectively positioned in a movement path in the first direction of a second protrusion.
Coupling and separation between a housing and a detachable cover may be made by the movement of the button. A rotating brush may be rotatably mounted to the detachable cover. Accordingly, the housing and the rotating brush can be easily coupled to or separated from each other.
A vacuum cleaner according to the embodiments of the present disclosure may include a main body and a suction nozzle.
The main body may be configured to generate an air pressure difference. An inside of the main body may be provided with a blower.
The suction nozzle may be configured to suck up dust on a cleaning surface through the generated air pressure difference.
The suction nozzle may include the housing, the button, the rotating brush, and the detachable cover.
The housing may include a passage through which the dust moves to the main body. The passage may be formed at the rear of the housing. The passage may be formed in a cylindrical shape.
When the blower generates the air pressure difference, the dust and foreign substances on the cleaning surface may move to the main body through the passage in the suction nozzle.
The housing may include the insertion hole.
The button may be mounted on the housing to be movable in a third direction. The first direction may be a direction perpendicular to a direction of a rotation axis of the rotating brush. The third direction may be a direction perpendicular to both the first direction and the direction of the rotation axis of the rotating brush.
The button may include the first protrusion. The first protrusion may protrude in the direction of the rotation axis of the rotating brush. The first protrusion may form a first surface inclined with respect to the first direction.
The rotating brush may be configured to rotate so as to push the dust on the cleaning surface toward the passage. The rotating brush may include a body, a brush, a second shaft, and a third shaft.
The body may be formed in a hollow cylindrical shape. A central axis of the body may serve as the rotation axis of the rotating brush.
The brush may be attached to an outer surface of the body. When the body rotates, the brush may scratch the cleaning surface.
The second shaft may be coupled to one side of the rotation axis of the body. The second shaft may be configured to rotate in engagement with a first shaft. The first shaft may be configured to transmit a rotating force of a motor to the rotating brush.
The third shaft may be coupled to the other side of the rotation axis of the body. The third shaft may couple the body to the slider in such a way that the body may rotate.
The third shaft may include a coupling member, a rotating member, a first extending portion, and a second extending portion.
The coupling member may generate a coupling force with the body. The rotating member in a cylindrical shape may be coupled to the inside of the coupling member.
A bearing may be mounted to the slider. The rotating member may be rotatably mounted to the slider by means of the bearing.
The first extending portion may extend in the radial direction of the rotating member around the rotating member. One side of the first extending portion may be spaced apart from one side of a guiding member by a predetermined distance in the axial direction.
One side of the first extending portion may be formed in a ring shape around the rotation axis of the body. One side of the guiding member may be formed in a ring shape around the rotation axis of the body.
The second extending portion may extend from the first extending portion in the axial direction. The second extending portion may be formed in a cylindrical shape around the shaft. A projection may be formed on an outer surface of the second extending portion. The projection may be spaced apart from an inner surface of the guiding member by a predetermined distance.
The projection may be disposed inside the guiding member. The projection may be formed along the circumferential direction of the body around the rotation axis of the body. The inner surface of the guiding member may be formed in a cylindrical shape around the rotation axis of the body.
When an external force is applied to the body in a direction inclined with respect to the axial direction, the projection and the inner surface of the guiding member may come into contact with each other.
The insertion member and the second protrusion may be formed on the detachable cover.
The inner surface of the insertion hole may form movement and rotation boundaries that prevent movement and rotation of the insertion member except for movement in the movement path in the first direction.
A latching groove may be formed in the housing. A third protrusion may be formed on the detachable cover. When the insertion member is inserted into the insertion hole in the first direction, the third protrusion may be inserted into the latching groove in the first direction.
The latching groove may be formed on the opposite side of the insertion hole based on the rotation axis. The inner surface of the latching groove may form a movement boundary that prevents movement of the third protrusion in the first direction and the direction of the rotation axis.
Accordingly, the housing and the detachable cover may form a firm coupling force between each other in the axial direction of the rotating brush. In addition, it is possible to prevent noise and wear due to collision between the detachable cover and the housing, which is caused by an axial force applied to the rotating brush.
The second protrusion may protrude from the detachable cover in the axial direction. The second protrusion may form a second surface inclined with respect to the first direction.
The second protrusion may move in the first direction to form an inclined contact surface with the first protrusion. The first surface and the second surface may form the inclined contact surface. The second protrusion may push the first protrusion outside the movement path in the first direction of the second protrusion through the inclined contact surface.
The housing may be provided with an elastic member. The elastic member may generate a resilience for pushing the first protrusion in the movement path in the first direction. The elastic member may be formed as a compression spring.
The detachable cover may include a cover body and the slider.
The cover body may cover one side of the housing. The insertion member, the second protrusion, and a rail may be formed on the cover body.
The rotating brush may be rotatably mounted to the slider. The slider may be mounted on the rail so as to be movable in the first direction.
The rail may be provided with an elastic member. The elastic member may generate a resilience for pushing the slider in the first direction. The elastic member may be formed as a compression spring.
When the first protrusion deviates from the movement path in the first direction of the second protrusion, the insertion member may be separated from the insertion hole in a direction opposite to the first direction by the force of the elastic member.
A driver configured to rotate the first shaft may be installed in the housing. The driver may include a motor. The rotating force of the motor may be transmitted to the first shaft through a belt transmission.
The rotating brush may be configured to rotate in engagement with the first shaft.
An entrance through which the rotating brush passes toward the first shaft may be formed in the housing. When the second shaft is fitted into the first shaft, the slider may be inserted into the entrance.
An insertion groove may be formed in the entrance. The protrusion may be formed on the guiding member. As the second shaft is fitted into the first shaft, the protrusion may be inserted into the insertion groove.
An inner surface of the insertion groove may constrain rotation of the slider about the rotation axis. Even when the cover body moves in the first direction, the rotating brush may continue to be in engagement with the first shaft.
According to the embodiments of the present disclosure, since the housing and the detachable cover are coupled to each other at a plurality of points by inserting the insertion members formed in the detachable cover into the insertion holes formed in the housing, loosening between the detachable cover and the housing due to the axial force applied to the rotating brush can be minimized.
According to the embodiments of the present disclosure, since the axial force applied to the rotating brush is distributed to contact surfaces between the insertion members and the insertion holes, the detachable cover and the housing can be firmly coupled to each other in the axial direction of the rotating brush.
According to the embodiments of the present disclosure, since the rail is provided with the elastic member for pushing the slider in the first direction, and when the first protrusion deviates from the movement path in the first direction of the second protrusion, the insertion member is separated from the insertion hole in the direction opposite to the first direction by the force of the elastic member, the housing and the brush module can be easily separated from each other by simply pressing the button.
According to the embodiments of the present disclosure, since when the cover body is moved in the first direction while the rotating brush is in engagement with the first shaft, the first protrusion is positioned in the movement path in the first direction of the second protrusion by the insertion member being inserted into the insertion hole, the housing and the brush module can be easily coupled to each other.
Hereinafter, the embodiments disclosed in this specification will be described in detail with reference to the accompanying drawings. The detailed description of related known technology will be omitted when it may obscure the subject matter of the embodiments according to the present disclosure.
As illustrated in
The suction nozzle 10 is coupled to the main body 20. The suction nozzle 10 may be coupled to the main body 20 through an extension pipe. A user may move the suction nozzle 10 forward and backward on a cleaning surface while gripping a handle 21 formed on the main body 20. The cleaning surface may refer to soft surfaces such as sofas, blankets, or carpets.
The main body 20 is configured to generate an air pressure difference. A blower is provided inside the main body 20. When the blower generates the air pressure difference, foreign substances, such as hairs, animal hairs, and dust on the cleaning surface is moved to the main body 20 through a passage 121 of the suction nozzle 10.
A centrifugal dust collector may be provided inside the main body 20. The foreign substances may be received in a dust container 22.
The suction nozzle 10 is configured to suck up the foreign substances, such as hairs, animal hairs, and dust on the cleaning surface through the generated air pressure difference. As illustrated in
Hereinafter, in order to facilitate understanding of the present disclosure, a side of the suction nozzle 10 where a rotating brush 210 is positioned will be referred to as the front of the suction nozzle 10, and a side of the suction nozzle 10 where a connector 120 is positioned will be referred to as the rear of the suction nozzle 10.
As illustrated in
As illustrated in
As illustrated in
The rotating brush 210 is mounted at the front of the main body housing 110. The front portion of the main body housing 110 is formed to surround an upper portion of the rotating brush 210. The main body housing 110 is spaced apart from the upper portion of the rotating brush 210 by a predetermined distance.
The rotating brush 210 is configured to push the foreign substances, such as hairs, animal hairs, and dust on the cleaning surface toward the rear of the rotating brush 210 while rotating. The foreign substances pushed toward the rear of the rotating brush 210 may easily enter the passage 121.
Wheels W are mounted to a lower portion of the main body housing 110. The wheels W may roll on the cleaning surface. A user may move the suction nozzle 10 forward and backward on the cleaning surface while gripping a handle 21 formed on the main body 20.
The connector 120 forms the passage 121 through which the foreign substances in the suction space 111 move to the main body 20. The connector 120 is substantially formed in a pipe shape.
The connector 120 is detachably coupled to the main body 20. A release button 122 is mounted on an upper portion of the connector 120. When the release button 122 is pressed, the suction nozzle 10 and the main body 20 may be separated from each other.
As illustrated in
The driver 300 includes a motor. The rotating force of the motor may be transmitted to the first shaft 310 through a belt transmission.
As illustrated in
As illustrated in
The body 211 forms a skeleton of the rotating brush 210. The body 211 is formed in a hollow cylindrical shape. The body 211 forms a uniform rotational inertia along the circumferential direction of the body 211. The body 211 may be made of synthetic resin or metal.
The central axis of the body 211 serves as the rotation axis of the rotating brush 210. The rotation axis of the body 211 is positioned in the same line as the rotation axes of the first shaft 310, the second shaft 213, and the third shaft 214. Hereinafter, in order to facilitate understanding of the present disclosure, the direction of the rotation axis of the rotating brush 210 will be referred to as an “axial direction”.
The brush 212 is attached to an outer surface of the body 211. When the body 211 rotates, the brush 212 scratches the cleaning surface. During this process, the foreign substances, such as hairs, animal hairs, and dust attached to the cleaning surface are detached from the cleaning surface, and are then pushed toward the rear of the brush 212.
The brush 212 may be made of a stiff plastic material. When cleaning soft cleaning surfaces such as sofas, blankets, or carpets, the carpet brush 212 made of the stiff plastic material is advantageous in terms of cleaning efficiency.
As illustrated in
The second shaft 213 is coupled to one side of the rotation axis of the body 211. A plurality of projections 213P are formed on the second shaft 213. The projections 213P may be formed along the circumferential direction of the second shaft 213 around the rotation axis of the second shaft 213.
As illustrated in
An insertion groove 110B is formed in the entrance 110A. A protrusion 222P is formed on a guiding member 222D. As the second shaft 213 of the rotating brush 210 is fitted into the first shaft 310, the protrusion 222P is inserted into the insertion groove 110B. An inner surface of the insertion groove 110B constrains rotation of a slider 222 about the rotation axis.
As illustrated in
As illustrated in
A bearing 222C1 is mounted to a hub 222C of the slider 222. The rotating member 214A1 is rotatably mounted to the slider 222 by means of the bearing 222C1. Accordingly, the rotating brush 210 is rotatably mounted to the slider 222.
The first extending portion 214B extends in the radial direction of the rotating member 214A1 around the rotating member 214A1. The first extending portion 214B is formed in a circular plate shape. One side of the first extending portion 214B is spaced apart from one side of the guiding member 222D by a predetermined distance in the axial direction.
One side of the first extending portion 214B is formed in a ring shape around the rotation axis of the body 211. One side of the guiding member 222D is formed in a ring shape around the rotation axis of the body 211.
When an external force is applied to the body 211 in a direction inclined with respect to the axial direction, one side of the first extending portion 214B and one side of the guiding member 222D come into contact with each other. Accordingly, loosening of the body 211 by the external force applied to the body 211 in the direction inclined with respect to the axial direction is suppressed.
As illustrated in
The projection 214P is disposed inside the guiding member 222D. The projection 214P is formed along the circumferential direction of the body 211 around the rotation axis of the body 211. The inner surface of the guiding member 222D is formed in a cylindrical shape around the rotation axis of the body 211.
When the external force is applied to the body 211 in the direction inclined with respect to the axial direction, the projection 214P and the inner surface of the guiding member 222D may come into contact with each other. Accordingly, loosening of the body 211 by the external force applied to the body 211 in the direction inclined with respect to the axial direction is suppressed.
As illustrated in
Each of the latching portions 112 includes an insertion hole 113. A plurality of insertion members 221A are formed on the detachable cover 220. The insertion members 221A are inserted into the insertion holes 113 in a first direction D1. The first direction D1 refers to the direction in which the insertion member 221A is inserted into the insertion hole 113.
The latching groove 114 is formed on the opposite side of the insertion hole 113 based on the rotation axis. A third protrusion 221C is formed on the detachable cover 220. The third protrusion 221C is inserted into the latching groove 114 in the first direction D1. When the insertion members 221A are inserted into the insertion holes 113 in the first direction D1, the third protrusion 221C is inserted into the latching groove 114.
As illustrated in
In the coupled state, the cover body 221 covers the coupling surface of the housing 100. A boundary of the cover body 221 forms an outline similar to a profile of the coupling surface.
The boundary of the cover body 221 protrudes toward an edge of the coupling surface. In the coupled state, the boundary of the cover body 221 is in close contact with the edge of the coupling surface of the main body housing 110. A hole through which air enters and exits is formed in the cover body 221.
As illustrated in
Each of the insertion members 221A includes a supporting member 221A1 and a leading-in member 221A2.
The supporting members 221A1 protrude from the cover body 221 in the axial direction. The leading-in members 221A2 extend from the supporting members 221A1 in the first direction D1. The leading-in members 221A2 are inserted into the insertion holes 113 in the first direction D1.
The first direction D1 refers to the direction in which the leading-in member 221A2 is inserted into the insertion hole 113. Hereinafter, in order to facilitate understanding of the present disclosure, the direction opposite to the first direction D1 will be referred to as a second direction.
The user may insert the leading-in members 221A2 into the insertion holes 113 by moving the detachable cover 220 in the first direction D1. The first direction D1 may be perpendicular to the direction of the rotation axis of the body 211. The inner surface of the insertion hole 113 forms movement and rotation boundaries that prevent movement and rotation of the leading-in member 221A2 except for movement in the movement path in the first direction D1.
The third protrusion 221C protrudes from the cover body 221 in the first direction D1. The third protrusion 221C is inserted into the latching groove 114 in the first direction D1. When the leading-in members 221A2 are inserted into the insertion holes 113 in the first direction D1, the third protrusion 221C is inserted into the latching groove 114.
The latching groove 114 is formed on the opposite side of the insertion hole 113 based on the rotation axis. The inner surface of the latching groove 114 forms a movement boundary that prevents movement of the third protrusion 221C in the first direction D1 and the direction of the rotation axis.
Accordingly, movement and rotation of the insertion member 221A, except for movement in the movement path in the first direction D1, is prevented on one side based on the rotation axis. In addition, movement of the third protrusion 221C in the first direction D1 and the direction of the rotation axis is prevented on the other side based on the rotation axis.
The insertion member 221A and the third protrusion 221C are formed on the detachable cover 220. Accordingly, when the insertion members 221A are inserted into the insertion holes 113, movement of the detachable cover 220 in the axial direction is prevented on both sides based on the rotation axis.
Rotation of the detachable cover 220 is also prevented on one side based on the rotation axis. The rotation of the detachable cover 220 is prevented by means of the plurality of insertion members 221A and insertion holes 113. As a result, movement and rotation of the detachable cover 220 in the axial direction can be reliably prevented.
Movement of the detachable cover 220 in the first direction D1 is prevented on the other side based on the rotation axis. Accordingly, when the insertion members 221A are inserted into the insertion holes 113, the detachable cover 220 may move only in the second direction.
The second protrusion 221B protrudes from the cover body 221 in the axial direction. The second protrusion 221B forms a second surface 221F inclined with respect to the first direction D1.
As illustrated in
The first supporting members 221D1 protrude from the cover body 221 in the axial direction. The first supporting members 221D1 extend in the first direction D1. The first projections 221D2 protrude from the first supporting members 221D1 in directions facing away from each other.
The slider 222 includes a base 222A, a mounting portion 222B, a hub 222C, and a guiding member 222D.
The base 222A is formed in a circular plate shape. The mounting portion 222B is formed on one surface of the base 222A. The mounting portion 222B includes a pair of second supporting members 222B1 and a pair of second projections 222B2.
The second supporting members 222B1 protrude from the base 222A in the axial direction. The second supporting members 222B1 extend in the first direction D1. The first projections 222B2 protrude from the second supporting members 222B1 in directions facing each other.
The first projections 221D2 are interposed between the base 222A and the second protrusions 221B. Accordingly, the slider 222 is mounted on the rail 221D so as to be movable in the first direction D1. In addition, loosening between the rail 221D and the slider 222 in the axial direction is prevented.
As illustrated in
The guiding member 222D is formed along the circumferential direction of the body 211 around the rotation axis of the body 211. The inner surface of the guiding member 222D is formed in a cylindrical shape around the rotation axis of the body 211.
One side of the first extending portion 214B is spaced apart from one side of the guiding member 222D by a predetermined distance in the axial direction. A projection is formed on an outer surface of the second extending portion 214C. The projection is spaced apart from an inner surface of the guiding member 222D by a predetermined distance.
When an external force is applied to the body 211 in a direction inclined with respect to the axial direction, one side of the first extending portion 214B and one side of the guiding member 222D come into contact with each other. Accordingly, loosening of the body 211 by the external force applied to the body 211 in the direction inclined with respect to the axial direction is suppressed.
When an external force is applied to the body 211 in a direction inclined with respect to the axial direction, the projection and the inner surface of the guiding member 222D may come into contact with each other. Accordingly, loosening of the body 211 by the external force applied to the body 211 in the direction inclined with respect to the axial direction is suppressed.
As illustrated in
The rail 221D is provided with a mounting portion 221D3. The elastic member 221E is mounted to the mounting portion 221D3. An extending portion 222E to which the resilience of the elastic member 221E is applied is formed on one surface of the slider 222.
A limiting member 222A1 is formed on one surface of the base 222A. The limiting member 222A1 is in contact with the rail 221D by the resilience of the elastic member 221E in a state in which a coupling between the housing 100 and the brush module 200 is released. The limiting member 222A1 limits the extent to which the slider 222 is pushed by the resilience of the elastic member 221E.
As illustrated in
A first protrusion 131 is formed on the button 130. As the button 130 is moved, the first protrusion 131 is selectively positioned in the movement path in the first direction D1 of the second protrusion 221B.
The first protrusion 131 protrudes in the axial direction. The first protrusion 131 forms a first surface 131F inclined with respect to the first direction D1. As described above, the second protrusion 221B forms the second surface 221F inclined with respect to the first direction D1. The first surface 131F and the second surface 221F form an inclined contact surface.
As illustrated in
The coupling between the housing 100 and the brush module 200 is performed in the following order. In the state illustrated in
In addition, when the second shaft 213 of the rotating brush 210 is fitted into the first shaft 310, the slider 222 is inserted into the entrance 110A. The inner surface of the entrance 110A and the inner surface of the insertion groove 110B constrain movement of the slider 222. Accordingly, even when the detachable cover 220 moves in the first direction D1, the rotating brush 210 continues to be in engagement with the first shaft 310.
As illustrated in
When the user moves the detachable cover 220 in the first direction D1, the second protrusion 221B moves in the first direction D1 to form an inclined contact surface with the first protrusion 131. The inclined contact surface refers to a contact surface between the first surface 131F and the second surface 221F.
The button 130 is mounted on the housing 100 to be movable in the third direction D3. Accordingly, the second protrusion 221B pushes the first protrusion 131 in the third direction D3 through the inclined contact surface. As a result, in the process of the user moving the detachable cover 220 in the first direction D1, the first protrusion 131 is pushed outside the movement path in the first direction D1 of the second protrusion 221B.
As illustrated in
When the second protrusion 221B passes the first protrusion 131, the first protrusion 131 is positioned in the movement path in the first direction D1 of the second protrusion 221B by the resilience of the elastic member 115. The elastic member 221E generates a resilience for pushing the detachable cover 220 in the second direction. However, the second protrusion 221B does not move in the second direction due to the blocking by the first protrusion 131.
Thus, the coupling between the housing 100 and the brush module 200 is completed. In this state, the detachable cover 220 covers the coupling surface of the main body housing 110.
Separation of the brush module 200 from the housing 100 is performed in the following order.
When the user presses the button 130 in the third direction D3 in the state illustrated in
As shown in
At this time, the leading-in members 221A2 are separated from the insertion holes 113 in the second direction by the force of the elastic member 221E. In addition, the third protrusion 221C is separated from the latching groove 114 in the second direction.
In this state, the user may take out the rotating brush 210 from the entrance 110A of the main body housing 110 while gripping the detachable cover 220. Thus, the separation of the brush module 200 from the housing 100 is completed.
While the present disclosure has been explained in relation to its preferred embodiments, it is to be understood that various modifications thereof will become apparent to those skilled in the art upon reading the specification. Therefore, it is to be understood that the disclosure disclosed herein is intended to cover such modifications as fall within the scope of the appended claims.
The vacuum cleaner according to the embodiments of the present disclosure is industrially applicable in that since the housing and the detachable cover may be coupled to each other at a plurality of points by inserting the insertion members formed in the detachable cover into the insertion holes formed in the housing, loosening between the detachable cover and the housing due to the axial force applied to the rotating brush can be minimized.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10-2020-0005625 | Jan 2020 | KR | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/KR2020/016364 | 11/19/2020 | WO |
| Publishing Document | Publishing Date | Country | Kind |
|---|---|---|---|
| WO2021/145550 | 7/22/2021 | WO | A |
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| 9924843 | Song | Mar 2018 | B2 |
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| 20170055791 | Lim et al. | Mar 2017 | A1 |
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| 20180184867 | Sun | Jul 2018 | A1 |
| 20180333028 | Carswell et al. | Nov 2018 | A1 |
| 20200187741 | Villaroman | Jun 2020 | A1 |
| Number | Date | Country |
|---|---|---|
| 209574555 | Nov 2019 | CN |
| 110623595 | Dec 2019 | CN |
| 209826559 | Dec 2019 | CN |
| 3 245 927 | Jan 2021 | EP |
| 10-2018-0088219 | Aug 2018 | KR |
| 10-1917702 | Nov 2018 | KR |
| WO-0141618 | Jun 2001 | WO |
| Entry |
|---|
| WO-0141618-A1 espacenet (Year: 2024). |
| Number | Date | Country | |
|---|---|---|---|
| 20230029769 A1 | Feb 2023 | US |
