Patent Description:
Cleaners are devices which absorb or clean dust or particles in a cleaning target zone to perform cleaning.

The cleaners may be categorized into manual vacuum cleaners which perform cleaning while being moved on the basis of direct manipulation by a user and automatic vacuum cleaners which perform cleaning while moving autonomously.

Also, the manual vacuum cleaners may be categorized into canistertype cleaners, upright-type cleaners, handy-type cleaners, and stick-type cleaners on the basis of types of cleaners.

The prior art reference <NUM> discloses a handheld vacuum cleaner.

The handheld vacuum cleaner includes a separation device which separates waste and dust from an air current. The separation device includes a centrifuge including one or more cyclones.

The centrifuge includes a first cyclone including a dust collector including a wall.

The dust collector may be disposed at a lower portion of the first cyclone and may be opened or closed by a base. The base rotates based on a hinge to open or close the dust collector.

A plurality of holes are provided in the first cyclone, and a portion of the first cyclone includes a trapezoid cover. A second cyclone communicates with the first cyclone in the cover.

In the prior art reference <NUM>, internal air of the first cyclone passes through the plurality of holes and moves to the second cyclone, and in a process where air passes through the plurality of holes, dust plugs the plurality of holes of the cover. As the plurality of holes are much plugged, air flow is not smooth, causing a reduction in separation performance.

Therefore, a user should periodically clean the cover. In the prior art reference <NUM>, a user should rotate the base to open the dust collector, approach the cover, and clean the cover, and due to this, it is not easy to clean the cover.

Moreover, in the prior art reference <NUM>, dust separated from the first cyclone and the second cyclone is dropped downward and is collected on the base.

While a dust separation process is performed by a cleaner, when an operation of the cleaner stops, separated dust is stored in the dust collector at a low density.

Particularly, dust separated by the first cyclone occupies a very large volume compared to weight thereof, and due to this, dust in the dust collector should be frequently removed for maintaining dust collection performance.

The prior art reference <NUM> discloses technology for compressing internal dust of a dust collection case.

The dust collection case includes a dust separation chamber which separates dust from air with a centrifugal force, a dust accommodating chamber which accommodates inflow dust, an intake cylinder which is disposed at a center portion of the dust separation chamber, and a filter which is disposed outside the intake cylinder.

Air of the dust separation chamber passes through the filter, and then, moves into the intake cylinder.

An outer canister is provided outside the intake cylinder, a compression plate is provided under the outer canister, and a brush is provided on an inner circumference surface of the outer canister. A plurality of opening portions are provided in the outer canister so as not to hinder flow of air from the dust separation chamber to the intake cylinder.

In order to manipulate the outer canister, a manipulation lever is provided outside the outer canister in a diameter direction of the outer canister. The manipulation lever is disposed outside the dust separation chamber.

Therefore, when a user manipulates the manipulation lever to lower the outer canister and the compression plate, the brush on an inner surface of the outer canister cleans the filter outside the intake cylinder, and the compression plate compresses dust stored in the dust accommodating chamber.

However, in the prior art reference <NUM>, the outer canister is configured to surround the whole of the intake cylinder in a state where the manipulation lever is not manipulated, and thus, the plurality of opening portions are provided in the outer canister in order for air to pass through the outer canister.

However, although the plurality of opening portions are provided in the outer canister, a portion where an opening portion is not provided act as an air flow resistor, causing a reduction in air flow performance.

Moreover, since the outer canister is disposed outside the intake cylinder, dust of the dust separation chamber contacts the outer canister in a state where the manipulation lever is not manipulated, and due to this, the outer canister is polluted, whereby it is required to additionally clean the outer canister.

Moreover, in the prior art reference <NUM>, since the manipulation lever is disposed outside the dust separation chamber, a slot should be vertically provided in the dust separation chamber in order for the manipulation lever to vertically move.

The manipulation lever does not cover the whole of the slot, and due to this, the internal air and dust of the dust separation chamber is leaked to the outside through the slot.

Moreover, in the prior art reference <NUM>, there is no structure which enables the outer canister to move without being eccentric in the middle of moving upward and downward, and due to this, a vertical motion of the outer canister is not smooth.

Moreover, in the prior art reference <NUM>, the dust collection case may be detached from a cleaner body, and then, the manipulation lever may be manipulated, causing the inconvenience of a user.

<CIT> relates to a cyclone-type vacuum cleaner, wherein dust centrifuged from air sucked by a dust separation chamber is accumulated in a dust housing chamber.

<CIT> relates to a cleaner, which comprises: a first body having one side forming a first cyclone unit and the other side forming a dust container storing dust separated from the first cyclone unit; a second cyclone unit separating the dust from air discharged from the first cyclone unit, at least a part of which is located in the first body; and a second body accommodating a suction motor for generating suction force, the second body being positioned on an opposite side of the dust container with respect to the first cyclone unit.

The present embodiment provides a cleaner which compresses dust in a dust container by manipulating a compression mechanism.

The present embodiment provides a cleaner which enables a user to easily recognize a manipulation part and prevents the manipulation part from contacting a floor in a state where the cleaner is on the floor.

The present embodiment provides a cleaner which prevents air and dust from being leaked through an opening through which a transfer part for transferring a manipulation force to a movable part for dust compression passes.

The present embodiment provides a cleaner which enables the stable movement of a transfer part for transferring a manipulation force of a manipulation part to a movable part.

A cleaner includes a suction part; a main body including a body, including a cyclone part configured to separate dust from air suctioned through the suction part and a dust container configured to store the dust separated by the cyclone part, and a body cover configured to open or close a lower portion of the body; a handle part coupled to the main body, the handle part including a handle body including a handle axis A6; a filter part disposed in the body and configured to filter air in a process where air separated from dust in the cyclone part passes through the filter part; a movable part configured to move along a space between an outer portion of the filter part and an inner circumference surface of the body in the body; a manipulation part disposed outside the main body and manipulated for moving the movable part; and a transfer part passing through the main body and connecting the movable part to the manipulation part.

When the cleaner is seen from above in a state where the dust container is disposed at a lowermost portion and a cyclone flow axis A1 of the cyclone part may be vertically disposed, and the handle axis A6 may extend in the form of an axial line L5 having a certain length within a length range of the handle body.

The axial line L5 may include a first point P1 disposed farthest away from the main body and a second point P2 disposed closest to the main body, and when two lines passing through the first point P1 and extending in a tangential-line direction of the main body are defined as a first extension line L6 and a second extension line L7, at least a portion of the manipulation part may be disposed in a region formed by an outer surface of the main body and the first and second virtual lines L6 and L7.

At least a portion of the manipulation part may be disposed outside the region formed by the outer surface of the main body and the first and second virtual lines L6 and L7.

An inner portion of the body may denote an internal space of the body, and an outer portion of the body may denote the outside of the internal space of the body.

A distance between the cyclone flow axis A and the transfer part may be set to be longer than a distance between the cyclone flow axis A and an inner circumference surface where cyclone flow is generated in the cyclone part.

At least a portion of the manipulation part may be covered by the handle part, and another portion may protrude outward from a boundary portion between the body and the handle part.

The transfer part may be disposed outward in a radius direction of an inner circumference surface where cyclone flow is generated in the cyclone part.

The transfer part may pass through the body in a direction parallel to a cyclone flow axis of the body.

The movable part may clean the filter part in a lowering process. Also, the movable part may compress dust in the dust container in a process of lowering the movable part.

The body may be provided in a cylindrical shape, and a horizontal width of the handle part may be set to be less than a diameter of the body.

The manipulation part may be disposed in a space where the body, the handle part, and the floor surface are provided in a state where the main body and the handle part are located to contact the floor surface, and may be apart from the floor surface.

The handle part may include a slot configured to guide movement of the neck part. The manipulation part may include a first part covered by the handle part, a second part disposed outside the main body and the handle part to extend from the first part, and a neck part having a width which is less than a horizontal-direction width of the first part and the second part.

The neck part may be disposed in the slot, and the handle part may further include a guide end part surface-contacting the neck part.

The cleaner may further include a guide rib protruding from the main body, for guiding vertical movement of the manipulation part and an elastic member protruding to a movement path of the manipulation part and elastically supporting a lower portion of the manipulation part.

The elastic member may provide an elastic force to the manipulation part in a state where an external force is not applied to the manipulation part, and the elastic force of the elastic member may not be provided to the manipulation part after the elastic member deviates from the movement path of the manipulation part due to the external force applied to the manipulation part.

The body may include a guide body provided to protrude outward from the body. A movement space enabling movement of the transfer part may be provided in the guide body. An opening through which the transfer part passes may be provided in an upper sidewall of the guide body.

At least a portion of the opening may be provided to have a diameter which progressively increases in a direction closer to a lower portion thereof, and a minimum diameter of the opening may be set to correspond to an outer diameter of the transfer part.

The movable part may include a frame having a ring shape and a connection part extending outward from a radius of the frame and connecting the frame to the transfer part. The transfer part passing through the opening may be connected to the connection part, and the connection part may contact the upper sidewall at a standby position of the manipulation part and covers the opening, thereby preventing air and dust from being leaked through the opening.

The cleaner may further include an air guide configured to guide flow of air passing through the filter part. The filter part may be disposed under the air guide, and the cleaning part may be disposed to surround a perimeter of an outer circumference surface of the air guide at a standby position of the movable part. The air guide may include a contact surface contacting the cleaning surface, and a diameter of the contact surface may be set to be greater than a diameter of the cleaning surface.

The main body may further include a suction motor configured to generate a suction force, and a battery for supplying power to the suction motor may be provided in the handle part.

The dust container may be disposed under the suction motor in an extension direction of a cyclone flow axis of the cyclone part, and the suction motor and the manipulation part may be disposed upward from the battery.

The manipulation part may be disposed at the same height as the suction motor or may be disposed to be higher than the suction motor.

According to the embodiments, since the movable part of the compression mechanism is disposed in the body and the manipulation part is disposed outside the main body, the user may manipulate the manipulation part, and thus, dust in the main body may be compressed.

Moreover, according to the embodiments, although the transfer part for transferring the manipulation force of the manipulation part to the movable part passes through the main body, the transfer part may pass through the main body in a direction parallel to the cyclone flow axis in the main body, and thus, a size of the opening through which the transfer part passes may be reduced, thereby preventing the internal dust and air of the main body from being leaked through the opening.

Moreover, a portion of the connection part connecting the movable part to the transfer part may cover the opening, and thus, dust and air may be better prevented from being leaked to the outside through the opening.

Moreover, since at least a portion of the opening is provided to have a diameter which progressively increases in a direction closer to a lower portion thereof, a contact area between the perimeter surface of the opening and the transfer part may be minimized, and thus, the transfer part may stably move in a vertical direction.

Moreover, since the manipulation part is disposed outside the main body and the handle part guides the vertical movement of the manipulation part while covering a portion of the manipulation part, the manipulation part may stably and vertically move without being shaken in a horizontal direction.

Moreover, the elastic member may support the manipulation part at the standby position of the manipulation part, thereby preventing a phenomenon where the manipulation part is lowered due to a weight of the compression mechanism.

Moreover, since the perimeter surface of the opening contacts the outer circumference surface of the transfer part, lowering of the compression mechanism caused by a weight thereof may be limited by a frictional force between the perimeter surface of the opening and the outer circumference surface of the transfer part.

Moreover, the movable part may include the cleaning part including an elasticity-deformable material, and the cleaning surface of the cleaning part may contact the air guide while pressurizing the contact surface of the air guide guiding air, whereby lowering of the compression mechanism caused by a weight thereof may be limited.

In adding reference numerals for elements in each figure, it should be noted that like reference numerals already used to denote like elements in other figures are used for elements wherever possible. Moreover, detailed descriptions related to well-known functions or configurations will be ruled out in order not to unnecessarily obscure subject matters of the present invention.

In describing the elements of the present invention, terms such as first, second, A, B, (a), (b), etc., may be used. Such terms are used for merely discriminating the corresponding elements from other elements and the corresponding elements are not limited in their essence, sequence, or precedence by the terms. It will be understood that when an element or layer is referred to as being "on" or "connected to" another element or layer, it may be directly on or directly connected to the other element or layer, or intervening elements or layers may be present.

<FIG> is a perspective view of a cleaner according to an embodiment, <FIG> is a diagram illustrating a state where a cleaner according to an embodiment is located on a floor surface with being laid, <FIG> is a perspective view illustrating a state where a handle part is detached from a cleaner according to an embodiment, and <FIG> is a cross-sectional view taken along line A-A of <FIG>.

<FIG> is a diagram illustrating the arrangement of a movable part, a filter part, and an air guide of a compression mechanism.

Referring to <FIG>, a cleaner <NUM> according to an embodiment may include a main body <NUM>. The main body <NUM> may include a suction part <NUM> which sucks dust-containing air. The suction part <NUM> may guide dust containing air to the main body <NUM>.

The cleaner <NUM> may further include a handle part <NUM> coupled to the main body <NUM>. The handle part <NUM> may be disposed at a position opposite to the suction part <NUM> in the main body <NUM> for example. However, positions of the suction part <NUM> and the handle part <NUM> are not limited thereto.

The main body <NUM> may separate dust suctioned through the suction part <NUM> and may store the separated dust.

For example, the main body <NUM> may include a dust separation part. The dust separation part may include a first cyclone part <NUM> for separating dust through cyclone flow. The first cyclone part <NUM> may communicate with the suction part <NUM>.

Air and dust suctioned through the suction part <NUM> may spirally move along an inner circumference surface of the first cyclone part <NUM>.

The dust separation part may further include a second cyclone part <NUM> which secondarily separates dust from air discharged from the first cyclone part <NUM>.

The second cyclone part <NUM> may include a plurality of cyclone bodies <NUM> disposed in parallel. Air may divisionally pass through the plurality of cyclone bodies <NUM>.

As another example, the dust separation part may include a single cyclone part.

The main body <NUM> may be provided in a cylindrical shape for example, and an external appearance thereof may be formed by a plurality of bodies.

For example, the main body <NUM> may include a first body <NUM> which is substantially cylindrical in shape and a second main body <NUM> which is coupled to an upper portion of the first body <NUM> and is substantially cylindrical in shape.

An upper portion of the first body <NUM> may define the first cyclone part <NUM>, and a lower portion of the first body <NUM> may define a dust container <NUM> which stores dust separated from the first cyclone part <NUM>.

The lower portion of the first body <NUM> (i.e., a lower portion of the dust container <NUM>) may be opened or closed by a body cover <NUM> which rotates based on a hinge.

The main body <NUM> may further include a filter part <NUM> which is disposed to surround the second cyclone part <NUM>.

The filter part <NUM> may be provided in a cylindrical shape for example and may guide air, separated from dust in the first cyclone part <NUM>, to the second cyclone part <NUM>. The filter part <NUM> may filter out dust in a process where air passes through the filter part <NUM>.

To this end, the filter part <NUM> may include a mesh portion including a plurality of holes. The mesh portion <NUM> is not limited, but may be formed of a metal material.

The mesh portion <NUM> may filter air, and due to this, dust may be collected in the mesh portion <NUM>, whereby it is required to clean the mesh portion <NUM>.

In an embodiment, the cleaner <NUM> may further include a compression mechanism <NUM> for compressing dust stored in the dust container (i.e., a first dust storage part <NUM>).

Since capacity of the dust container <NUM> is limited, the amount of dust stored in the dust container <NUM> may increase during repeated cleaning, and thus a usage time of and the number of times the cleaner is used may be limited.

If the amount of dust stored in the dust container <NUM> increases, the user may cause the body cover <NUM> to open the dust container <NUM> to remove dust of the dust container <NUM>.

In this embodiment, when dust stored in the dust container <NUM> is compressed using the compression mechanism <NUM>, density of the dust stored in the dust container <NUM> increases, and thus a volume thereof decreases.

Therefore, according to the present embodiment, the number of times for emptying the dust container <NUM> is reduced, and accordingly, an available time before emptying the dust container advantageously increases.

The compression mechanism <NUM> may also clean the mesh portion <NUM> during a movement process.

The compression mechanism <NUM> may include a movable part <NUM> which is movable in the main body <NUM>, a manipulation part <NUM> which is manipulated by a user so as to move the movable part <NUM>, and a transfer part <NUM> which transfers a manipulation force of the manipulation part <NUM> to the movable part <NUM>.

The manipulation part <NUM> may be disposed outside the main body <NUM>. For example, the manipulation part <NUM> may be disposed outside the first body <NUM> and the second main body <NUM>. The manipulation part <NUM> may be disposed to be higher than the first body <NUM>. Also, the manipulation part <NUM> may be disposed to be higher than the movable part <NUM>.

The handle part <NUM> may include a handle body <NUM> which is gripped by a user and a battery housing <NUM> which is disposed under the handle body <NUM> to accommodate a battery <NUM>.

The handle body <NUM> may cover a portion of the manipulation part <NUM> and may guide movement of the manipulation part <NUM>.

In a state where the user grips the handle body <NUM> with a right hand, the manipulation part <NUM> may be disposed to the left of the handle body <NUM>.

Therefore, the user may easily manipulate the manipulation part <NUM> with a left hand which does not grip the handle body <NUM>.

The manipulation part <NUM> may move in a direction parallel to a cyclone flow axis A1 of the first cyclone part <NUM>. For example, the cyclone flow axis A1 of the first cyclone part <NUM> may extend in a vertical direction in a state where the dust container <NUM> is located on a floor.

Therefore, the manipulation part <NUM> may move in a vertical direction in a state where the dust container <NUM> is located on the floor.

A slot <NUM> may be provided in the handle body <NUM>, for movement of the manipulation part <NUM>. The slot <NUM> may extend in a direction parallel to an extension direction of the cyclone flow axis A1 of the first cyclone part <NUM>.

In the present embodiment, the extension direction of the cyclone flow axis A1 may be a vertical direction in the drawing for example, and thus, it may be understood that "vertical direction" described below denotes the extension direction of the cyclone flow axis A1.

Referring to <FIG>, a diameter D1 of the main body <NUM> may be set to be longer than a horizontal length L1 of the handle part <NUM>. Also, the handle part <NUM> may be coupled to the main body <NUM> so that a horizontal center of the handle part <NUM> matches a center of the main body <NUM>.

The manipulation part <NUM> may be disposed at, for example, a boundary portion where the main body <NUM> contacts the handle part <NUM>.

Based on a difference between a diameter of the main body <NUM> and a horizontal length of the handle part <NUM>, when the cleaner <NUM> is laid in order for the main body <NUM> and the handle part <NUM> to contact a floor F, a space may be provided between an outer circumference surface of the main body <NUM>, an outer circumference surface of the handle part <NUM>, and the floor F, and the manipulation part <NUM> may be disposed in the space.

In this state, the manipulation part <NUM> may be apart from the floor F. Therefore, the manipulation part <NUM> may be prevented from being damaged or undesirably manipulated due to a collision between the manipulation part <NUM> and the floor F in the middle of laying the cleaner <NUM> on the floor F.

The transfer part <NUM> may be provided in a cylindrical bar shape for example, and the manipulation part <NUM> may be coupled to an upper end portion of the transfer part <NUM>. That is, the transfer part <NUM> may include a horizontal cross-sectional surface provided in a circular shape.

Moreover, the transfer part <NUM> may extend in a direction parallel to the extension direction of the cyclone flow axis A1 of the first cyclone part <NUM>.

Since the movable part <NUM> is disposed in the main body <NUM> and the manipulation part <NUM> is disposed outside the main body <NUM>, a portion of the transfer part <NUM> may be disposed outside the main body <NUM> in order for the movable part <NUM> to be connected to the manipulation part <NUM>, and another portion of the transfer part <NUM> may be disposed in the main body <NUM>. That is, the transfer part <NUM> may pass through the main body <NUM>. Also, a portion, disposed outside the main body <NUM>, of the transfer part <NUM> may be covered by the handle part <NUM>.

The main body <NUM> may further include a guide body <NUM> for guiding the transfer part <NUM>. The guide body <NUM>, for example, may be disposed outside the first body <NUM> to protrude.

The guide body <NUM> may extend in a direction parallel to the extension direction of the cyclone flow axis A1 of the first cyclone part <NUM>.

The guide body <NUM> may communicate with an internal space of the first body <NUM>, and the transfer part <NUM> may move in the guide body <NUM>.

A detailed structure of the guide body <NUM> will be described below in detail with reference to the drawings.

The main body <NUM> may further include a suction motor <NUM> for generating a suction force. The suction force generated by the suction motor <NUM> may be applied to the suction part <NUM>.

The suction motor <NUM> may be disposed in the second body <NUM>.

The suction motor <NUM> may be disposed above the dust container <NUM> and the battery <NUM> with respect to the extension direction of the cyclone flow axis A1 of the first cyclone part <NUM>. The manipulation part <NUM> may be disposed at the same height as a portion of the suction motor <NUM>, or may be disposed to be higher than the suction motor <NUM>.

The main body <NUM> may further include an air guide <NUM> for guiding air, discharged from the second cyclone part <NUM>, to the suction motor <NUM>.

The second cyclone part <NUM> may be coupled to a lower portion of the air guide <NUM>. The filter part <NUM> may surround the second cyclone part <NUM> with being coupled to the second cyclone part <NUM>.

Therefore, the filter part <NUM> may be disposed under the air guide <NUM>. The movable part <NUM> may be disposed at a position surrounding the air guide <NUM> in a state where the manipulation part <NUM> is not manipulated.

The movable part <NUM> may include a cleaning part <NUM> for cleaning the filter part <NUM>.

In the present embodiment, a position of the compression mechanism <NUM> in a state where the manipulation part <NUM> is not manipulated may be referred to as a standby position.

At the standby position of the compression mechanism <NUM>, the whole of the cleaning part <NUM> may be disposed not to overlap the filter part <NUM> in a direction in which air passes through the filter part <NUM>.

For example, the whole of the cleaning part <NUM> may be disposed to be higher than the filter part <NUM> at the standby position. Accordingly, at the standby position, the cleaning part <NUM> may be prevented from acting as a flow resistor in a process where air passes through the filter part <NUM>.

A dust guide <NUM> may be provided under the second cyclone part <NUM>. A lower portion of the second cyclone part <NUM> may be coupled to an upper portion of the dust guide <NUM>. Also, a lower portion of the filter part <NUM> may be seated on the dust guide <NUM>.

The lower portion of the dust guide <NUM> may be seated on the body cover <NUM>. The dust guide <NUM> may be apart from an inner circumference surface of the first body <NUM> and may divide an internal space of the first body <NUM> into a first dust storage part <NUM> which stores dust separated from the first cyclone part <NUM> and a second dust storage part <NUM> which stores dust separated from the second cyclone part <NUM>.

The inner circumference surface of the first body <NUM> and an outer circumference surface of the dust guide <NUM> may define the first dust storage part <NUM>, and an inner circumference surface of the dust guide <NUM> may define the second dust storage part <NUM>.

Hereinafter, the compression mechanism <NUM> will be described in detail.

<FIG> and <FIG> are perspective views of a compression mechanism according to an embodiment, and <FIG> is an exploded perspective view of a compression mechanism according to an embodiment.

<FIG> is a perspective view of a cleaning part according to an embodiment, <FIG> is a perspective view of a core part according to an embodiment, <FIG> is a perspective view when a frame according to an embodiment is seen from above, <FIG> is a perspective view when a frame according to an embodiment is seen from below.

<FIG> is a cross-sectional view taken along line B-B of <FIG>, and <FIG> is a cross-sectional view taken along line C-C of <FIG>.

Referring to <FIG>, the movable part <NUM> may include a cleaning part <NUM> for cleaning the filter part <NUM>, a frame <NUM> for supporting an outer perimeter of the cleaning part <NUM>, and a core part <NUM> for supporting an inner perimeter of the cleaning part <NUM>.

The cleaning part <NUM> may be formed of an elasticity-deformable material. For example, the cleaning part <NUM> may be formed of a rubber material. The cleaning part <NUM> may be provided in a ring shape in order for the cleaning part <NUM> to clean a whole perimeter of the filter part <NUM>. As another example, the cleaning part <NUM> may be formed of silicon or a fiber material.

Moreover, the cleaning part <NUM> may stand by at a position deviating from the filter part <NUM> at the standby position, and in a cleaning process, the cleaning part <NUM> may move while cleaning an outer surface of the filter part <NUM>.

The cleaning part <NUM> may include an inner circumference surface, an outer circumference surface, a lower surface <NUM>, and an upper surface <NUM>.

An inner circumference surface of the cleaning part <NUM> may include a cleaning surface <NUM> which contacts the outer surface of the filter part <NUM> in a cleaning process. The cleaning surface <NUM> may be a surface facing the filter part <NUM> and may be a vertical surface.

Therefore, when the cleaning part <NUM> is lowered in a state where the whole of the cleaning surface <NUM> contacts a circumference perimeter of the filter part <NUM>, the cleaning surface <NUM> may remove dust adhered to the outer surface of the filter part <NUM>.

The lower surface <NUM> may be a horizontal surface, and the cleaning surface <NUM> may extend upward from an inner end portion of the lower surface <NUM>. Accordingly, the lower surface <NUM> may be vertical to the cleaning surface <NUM>.

As described above, when the cleaning surface <NUM> is a vertical surface and the lower surface <NUM> is provided as a horizontal surface vertical to the cleaning surface <NUM>, a phenomenon where a boundary portion between the cleaning surface <NUM> and the lower surface <NUM> is inward rolled by friction with the filter part <NUM> may be prevented in a process where the cleaning part <NUM> is lowered and then raised.

When the cleaning surface <NUM> and the lower surface <NUM> are inward rolled, a contact area between the cleaning surface <NUM> and the filter part <NUM> may be reduced, and thus, the cleaning performance of the filter part <NUM> may be reduced by the cleaning surface <NUM>. However, according to the present embodiment, such a phenomenon may be prevented.

A diameter of the cleaning surface <NUM> may be set to be less than that of the filter part <NUM>. In the present embodiment, since the cleaning part <NUM> is formed of an elasticity-deformable material, the cleaning part <NUM> may be deformed to the outside of the filter part <NUM> in a radius direction of the filter part <NUM> in a process where the cleaning part <NUM> is lowered and thus the cleaning surface <NUM> contacts the filter part <NUM>, and in an elasticity-deformed state, the cleaning surface <NUM> may contact the filter part <NUM>.

That is, the cleaning surface <NUM> may compress the filter part <NUM> with contacting the filter part <NUM>. Since the cleaning surface <NUM> compresses the filter part <NUM> with contacting the filter part <NUM>, dust adhered to the filter part <NUM> may be effectively removed from the filter part <NUM>.

Moreover, since the cleaning part <NUM> is formed of an elasticity-deformable material and the whole perimeter of the cleaning surface <NUM> compresses the filter part <NUM>, even when a center of the cleaning part <NUM> is inclined with respect to the cyclone flow axis A1 in a process of lowering the cleaning part <NUM>, a state where the cleaning surface <NUM> of the cleaning part <NUM> compresses the filter part <NUM> may be maintained, and thus, the filter part <NUM> may be cleaned.

A vertical length of the cleaning surface <NUM> may be set to be longer than a radius-direction length (a horizontal length in the drawing) of the lower surface <NUM> so that the cleaning performance of the filter part <NUM> is enhanced and elastic deformation is well performed in the cleaning surface <NUM> of the cleaning part <NUM>.

The inner circumference surface of the cleaning part <NUM> may further include a first inner inclined surface <NUM> which slopingly extends upward from an upper end of the cleaning surface <NUM> to the outside in a radius direction thereof.

Since the first inner inclined surface <NUM> is upward inclined to the outside, an inner diameter of the first inner inclined surface <NUM> in the cleaning part <NUM> may increase in a direction closer to an upper portion. Also, the first inner inclined surface <NUM> may be apart from an outer circumference surface of the filter part <NUM>.

The outer circumference surface of the cleaning part <NUM> may further include a first outer inclined surface <NUM> which extends to be upward inclined from an outer end portion of the lower surface <NUM> to the outside in a radius direction thereof.

In this case, an inclined angle of the first outer inclined surface <NUM> may be greater than an inclined angle of the first inner inclined surface <NUM> with respect to a vertical line.

Therefore, as seen from a vertical cross-sectional surface, a thickness between the first inner inclined surface <NUM> and the first outer inclined surface <NUM> in the cleaning part <NUM> may be reduced in a direction closer to a lower portion.

This may be for enabling the elasticity deformation of the cleaning part <NUM> to be well performed in a process of attaching the cleaning surface <NUM> on the filter part <NUM> in the cleaning part <NUM>.

The inner circumference surface of the cleaning part <NUM> may further include an inner vertical surface <NUM> which vertically extends from the first inner inclined surface <NUM>.

The inner vertical surface <NUM> may determine a position of a lower end portion of the core part <NUM> in a process of coupling the core part <NUM> to the cleaning part <NUM> through double injection.

The outer circumference surface of the cleaning part <NUM> may further include a first outer vertical surface 748a which vertically extends upward from an upper end portion of the first outer inclined surface <NUM>.

A length of the first outer vertical surface 748a may be set to be longer than that of the inner vertical surface <NUM>. Also, the inner vertical surface <NUM> may be disposed to face the first outer vertical surface <NUM>.

A thickness between the first outer vertical surface 748a and the inner vertical surface <NUM> in the cleaning part <NUM> may be thickest. This may be for maintaining a coupled state between the frame <NUM> and the core part <NUM> without deformation of a portion between the first outer vertical surface 748a and the inner vertical surface <NUM> in the cleaning part <NUM>.

The inner circumference surface of the cleaning part <NUM> may further include a second inner inclined surface <NUM> which is upward inclined from an upper end of the inner vertical surface <NUM> to the outside in a radius direction thereof.

The outer circumference surface of the cleaning part <NUM> may further include a second outer inclined surface 748b which is upward inclined from an upper end of the first outer inclined surface to the outside in a radius direction thereof.

An inclined angle of the second inner inclined surface <NUM> may be substantially the same as that of the second outer inclined surface 748b. Also, an inclined angle of the second inner inclined surface <NUM> may be substantially the same as that of the first outer inclined surface 748a.

The outer circumference surface of the cleaning part <NUM> may further include a second outer vertical surface 748c which vertically extends upward from an upper end of the second outer inclined surface 748b.

An upper end of the second outer vertical surface 748c may be connected to an upper end of the second inner inclined surface <NUM> by the upper surface <NUM>.

The upper end of the second outer vertical surface 748b and the upper end of the second inner inclined surface <NUM> may be disposed at the same height. Therefore, the upper surface <NUM> of the cleaning part <NUM> may be a horizontal surface.

A coupling projection <NUM> which is to be coupled to the core part <NUM> may be provided on the second inner inclined surface <NUM>.

A plurality of coupling projections <NUM> may be arranged apart from one another in a circumference direction of the cleaning part <NUM> so that a coupling force between the core part <NUM> and the cleaning part <NUM> increases.

Each of the coupling projections <NUM> may protrude from the second inner inclined surface <NUM> in a horizontal direction. That is, an extension direction of the coupling projection <NUM> may form a certain angle with respect to a normal line of the second inner inclined surface <NUM>.

In a case where the coupling projection <NUM> extends from the second inner inclined surface <NUM> in the horizontal direction, the coupling projection <NUM> may be effectively prevented from being detached from the core part <NUM> in a process where the cleaning part <NUM> moves in a vertical direction.

A portion of the first outer inclined surface <NUM> in the cleaning part <NUM> may be recessed inward. For example, the first outer inclined surface <NUM> may include a recessed portion <NUM>.

A function and a position of the recessed portion <NUM> will be described below with reference to the drawings.

The core part <NUM> may contact a portion of each of the upper surface <NUM> and the inner circumference surface of the cleaning part <NUM>.

For example, the core part <NUM> may include an outer inclined surface <NUM> which contacts the second inner inclined surface <NUM> of the cleaning part <NUM>.

The outer inclined surface <NUM> may be upward inclined to the outside in a radius direction thereof as a lower portion thereof is closer to an upper portion thereof.

An inclined angle of the outer inclined surface <NUM> may be the same as that of the second inner inclined surface <NUM> of the cleaning part <NUM>. The whole of the outer inclined surface <NUM> may contact the second inner inclined surface <NUM>.

The core part <NUM> may further include an inner vertical surface <NUM> which vertically extends upward from a lower end of the outer inclined surface <NUM>. The inner vertical surface <NUM> may be aligned with the inner vertical surface <NUM> of the cleaning part <NUM> in a vertical direction.

For example, the inner vertical surface <NUM> of the core part <NUM> and the inner vertical surface <NUM> of the cleaning part <NUM> may each be a surface which is continuous in a vertical direction.

The core part <NUM> may further include an inner inclined surface <NUM> which is upward inclined from an upper end of the inner vertical surface <NUM> to the outside. An inclined angle of the inner inclined surface <NUM> may be substantially the same as that of the outer inclined surface <NUM>.

The core part <NUM> may further include a coupling hole <NUM> into which the coupling projection <NUM> of the cleaning part <NUM> is inserted. For example, a plurality of coupling holes <NUM> may be disposed apart from one another in a circumference direction of the core part <NUM>.

The plurality of coupling holes <NUM> may pass through the core part <NUM> in a horizontal direction. That is, an extension direction of the coupling hole <NUM> may form a certain angle with respect to a normal line of each of the outer inclined surface <NUM> and the inner inclined surface <NUM>.

A portion of each of the coupling holes <NUM> may pass through the outer inclined surface <NUM> and the inner inclined surface <NUM>, and another portion may pass through the outer inclined surface <NUM> and the inner vertical surface <NUM>.

The core part <NUM> may further include a horizontal surface <NUM> which horizontally extends outward from an end portion of the outer inclined surface <NUM>.

A radius-direction length of the horizontal surface <NUM> may be longer than that of the upper surface <NUM> of the cleaning part <NUM>.

The horizontal surface <NUM> of the core part <NUM> may contact the upper surface <NUM> of the cleaning part <NUM>. In this case, a front surface of the upper surface <NUM> of the cleaning part <NUM> may contact the horizontal surface <NUM> of the core part <NUM>.

The core part <NUM> may further include an outer vertical surface <NUM> which vertically extends upward from an outer end portion of the horizontal surface <NUM>.

An upper surface <NUM> of the core part <NUM> may connect an upper end of the outer vertical surface <NUM> to an upper end of the inner inclined surface <NUM>.

In this case, the upper end of the outer vertical surface <NUM> and the upper end of the inner inclined surface <NUM> may be disposed at the same height. Therefore, the upper surface <NUM> of the core part <NUM> may be a horizontal surface.

The core part <NUM> may further include a hook coupling slot <NUM> to which a coupling hook <NUM> of the frame <NUM> is to be coupled.

A plurality of hook coupling slots <NUM> may be arranged apart from one another in a circumference direction of the core part <NUM> so that a fastening force between the core part <NUM> and the frame <NUM> increases.

Each of the hook coupling slots <NUM> may be formed as the upper surface <NUM> of the core part <NUM> is recessed downward. Alternatively, each hook coupling slot <NUM> may be provided to pass through an upper portion of the outer vertical surface <NUM> and an upper portion of the inner inclined surface <NUM>.

In all cases, the coupling hook <NUM> of the frame <NUM> may be seated on a floor surface of each hook coupling slot <NUM>.

The core part <NUM> may further include a recessed portion <NUM> which is provided at a position corresponding to the recessed portion <NUM>.

The frame <NUM> may support the cleaning part <NUM> and may be coupled to the core part <NUM> to fix a position of the cleaning part <NUM>.

The frame <NUM> may include an inner body 761a which supports the cleaning part <NUM> and an outer body 761b which extends downward from an upper portion of the inner body 761a and is disposed outside the inner body 761a.

The inner body 761a may be wholly provided to be inclined to the outside in a radius direction thereof as a lower portion thereof is closer to an upper portion thereof, and the outer body 761b may have a shape which vertically extends from an upper portion to a lower portion of the inner body 761a.

The inner body 761a may include an inner body bottom <NUM>. The inner body bottom <NUM> may be, for example, a horizontal surface.

The inner body 761a may include a first inner vertical surface 761c which vertically extends upward from an inner end portion of the inner body bottom <NUM>. The first inner vertical surface 761c may contact the first outer vertical surface 748a of the cleaning part <NUM>.

The inner body bottom <NUM> may be disposed to be higher than the lower surface <NUM> of the cleaning part <NUM>. Therefore, in terms of the whole of the movable part <NUM>, the lower surface <NUM> of the cleaning part <NUM> may be disposed at a lowermost portion.

The inner body 761a may further include a first inner inclined surface 761d which is upward inclined from an upper end of the first inner vertical surface 761c to the outside in a radius direction thereof.

Moreover, the inner body 761a may further include a second inner vertical surface 761e which vertically extends upward from an upper end of the first inner inclined surface 761d.

Moreover, the inner body 761a may further include a horizontal surface <NUM> which horizontally extends outward from an upper end of the second inner vertical surface 761e.

The second outer inclined surface 748b of the cleaning part <NUM> may be seated on the first inner inclined surface 761d.

The second outer vertical surface 748c of the cleaning part <NUM> may contact the second inner vertical surface 761e.

The horizontal surface <NUM> of the inner body 761a may be disposed at the same height as the upper end <NUM> of the cleaning part <NUM>.

Therefore, the horizontal surface <NUM> of the core part <NUM> may be seated on the horizontal surface <NUM> of the inner body 761a and the upper surface <NUM> of the cleaning part <NUM>.

That is, a portion of the inner body 761a and a portion of the core part <NUM> may be coupled to each other to surround a portion of an upper portion of the cleaning part <NUM>.

The inner body 761a may further include a second inner vertical surface <NUM> which vertically extends upward from an outer end portion of the horizontal surface <NUM>.

The second inner vertical surface <NUM> of the inner body 761a may contact the outer vertical surface <NUM> of the core part <NUM>. In this case, a vertical length of the second inner vertical surface <NUM> may be set to be longer than that of the outer vertical surface <NUM> of the core part <NUM>.

Therefore, the whole of the outer vertical surface <NUM> of the core part <NUM> may contact the second inner vertical surface <NUM>.

The coupling hook <NUM> may be coupled to the second inner vertical surface <NUM> of the inner body 761a. The plurality of coupling hooks <NUM> may be disposed apart from one another in a circumference direction thereof from the second inner vertical surface <NUM>.

Each coupling hook <NUM> may protrude inward from an upper portion of the second inner vertical surface <NUM>.

Therefore, according to the present embodiment, the upward movement of an upper portion of the core part <NUM> may be limited by the coupling hook <NUM>, and the downward movement of a lower portion of the core part <NUM> may be limited by the horizontal surface <NUM> of the inner body 761a.

The outer body 761b may be disposed outside the inner body 761a, and in this case, may surround a portion of the inner body 761a without surrounding the whole of the inner body 761a.

In this case, a portion where the outer body 761b is not provided may be a portion adjacent to the suction part <NUM> in the main body <NUM>.

Moreover, a recessed portion <NUM> recessed inward may be provided at a portion, which is not surrounded by the outer body 761b, of the inner body 761a. The recessed portion of the inner body 761a may be provided at a position at which the recessed portion <NUM> of the core part <NUM> corresponds to the recessed portion <NUM> of the cleaning part <NUM>.

A height of a portion, where the recessed portion <NUM> is provided, of the inner body 761a may be lower than that of a portion, where the recessed portion <NUM> is not provided, of the inner body 761a.

At least some of the recessed portions <NUM>, <NUM>, and <NUM> in the movable part <NUM> may be disposed to face the suction part <NUM> and may be recessed in a direction distancing from the suction part <NUM>.

The inner body 761a and the outer body 761b may be connected to each other by one or more connection ribs <NUM> so as to prevent relative deformation between the inner body 761a and the outer body 761b from being performed due to a reaction occurring in a process where the movable part <NUM> is lowered to compress dust in the dust container <NUM>.

The frame <NUM> may further include a frame guide <NUM> which extends downward from a boundary portion between the inner body 761a and the outer body 761b.

A vertical length of the frame guide <NUM> may be set to be longer than that of each of the inner body <NUM> and the outer body 761b. Also, a lower end of the frame guide <NUM> may be disposed to be lower than the inner body 761a and the outer body 761b.

The frame guide <NUM> may include a guide surface 765a which is a flat surface. The guide surface 765a may guide spiral air flow in a process where air flows into the first cyclone part <NUM> through the suction part <NUM>. Disposition of the frame guide <NUM> will be described below with reference to the drawings.

A lower end of the frame guide <NUM> may be disposed to be lower than the inner body 761a and the outer body 761b, and thus, the frame guide <NUM> may downward pressurize dust stored in the dust container <NUM> in a process where the movable part <NUM> is lowered.

The frame <NUM> may further include a pressurization rib <NUM> which extends downward from the outer body 761b. The pressurization rib <NUM> may be provided to be rounded in a circumference direction thereof.

The pressurization rib <NUM> may downward pressurize the dust stored in the dust container <NUM> in a process of lowering the movable part <NUM>.

In this case, the pressurization rib <NUM> may be provided in a thin plate shape, and thus, a pressurization area where the pressurization rib <NUM> pressurizes dust may be narrow. Therefore, the frame <NUM> may further include one or more auxiliary ribs 762a which protrudes inward from an inner circumference surface of the pressurization rib <NUM>, for increasing a dustcompressing area.

In order to more increase a dust compression effect, the plurality of auxiliary ribs 762a may be disposed apart from one another in a circumference direction from the pressurization rib <NUM>.

Each of the auxiliary ribs 762a may extend from a portion under the connection rib <NUM>, or may connect the inner body 761a to the outer body 761b independently from the connection rib <NUM> and may extend to the pressurization rib <NUM>.

The auxiliary rib 762a may include an inclined surface 762b so as not to hinder flow of air at the standby position but to compress dust.

For example, the inclined surface 762b may be downward inclined from the auxiliary rib 762a to the outside in a radius direction thereof. That is, a protrusion length of the auxiliary rib 762b may be reduced in a direction closer to a lower portion thereof.

Moreover, a lower end of the auxiliary rib 762b may be disposed to be higher than a lower end of the pressurization rib <NUM>.

The frame <NUM> may further include an extension part <NUM> which extends outward from the pressurization rib <NUM> and a coupling part <NUM> which is provided in the extension part <NUM>.

In the present embodiment, the extension part <NUM> and the coupling part <NUM> may be referred to as a connection part for connecting the transfer part <NUM> to the frame <NUM>.

The transfer part <NUM> may be connected to the coupling part <NUM>.

The extension part <NUM>, for example, may extend outward from a lowermost portion of an outer circumference surface of the pressurization rib <NUM>. In this case, an extension line of the extension part <NUM> may pass through a center of the frame <NUM>.

Therefore, a moment may be prevented from occurring in a process where the manipulation force of the manipulation part <NUM> is transferred to the frame <NUM> by the transfer part <NUM>.

A horizontal thickness of the extension part <NUM> may be set to be less than a diameter of the coupling part <NUM>.

The coupling part <NUM> may be approximately cylindrical in shape. An accommodating groove 764a for accommodating the transfer part <NUM> may be provided in the coupling part <NUM>. The accommodating groove 764a may be recessed downward from an upper surface of the coupling part <NUM>.

The transfer part <NUM>, as described above, may be provided in a long bar shape which is a cylindrical shape. This may be for enabling the transfer part <NUM> to smoothly move in a process where the transfer part <NUM> moves in a state which passes through the guide body <NUM>.

Therefore, a lower end of the transfer part <NUM> may be inserted into the accommodating groove 764a at an upper portion of the coupling part <NUM>.

The coupling part <NUM> may further include a seating surface 764b on which a lower end of the transfer part <NUM> accommodated into the accommodating groove 764a is seated.

A fastening member S1 may be fastened to the transfer part <NUM> at a lower portion of the coupling part <NUM> in a state where the transfer part <NUM> is accommodated into the accommodating groove 764a and is seated on the seating surface 764b. The fastening member S1 may be, for example, a bolt.

An accommodating groove 764c to receive a head of the bolt accommodated thereinto may be provided in a floor of the coupling part <NUM>. Also, a fastening groove <NUM> to which the fastening member S1 is fastened may be provided in the transfer part <NUM>.

Therefore, the fastening member S1 may pass through a fastening hole 764d passing through the accommodating groove 764c and the seating surface 764b and may be fastened to the fastening groove <NUM> of the transfer part <NUM>.

The transfer part <NUM> may be apart from an outer circumference surface (an outer circumference surface of an outer body) of the frame <NUM> in a state where the transfer part <NUM> is coupled to the coupling part <NUM>.

In the present embodiment, the cleaning part <NUM> may be provided as one body with the core part <NUM> and the frame <NUM> through double injection.

<FIG> is a diagram illustrating a state where a movable part according to an embodiment is located at a standby position, and <FIG> is an enlarged view of a portion A of <FIG>.

Referring to <FIG> and <FIG>, the movable part <NUM> may be disposed to surround an outer perimeter of the air guide <NUM> at the standby position.

In this case, an outer circumference surface of the air guide <NUM> may form an accommodating space <NUM> which is recessed inward, so as to minimize a degree to which the movable part <NUM> protrudes outward in a state which surrounds an outer portion of the air guide <NUM>.

A portion of the movable part <NUM> may be accommodated into the accommodating space <NUM>.

An outer circumference surface of the air guide <NUM> may further include a contact surface <NUM> which contacts the cleaning surface <NUM> of the cleaning part <NUM>. The contact surface <NUM> may be disposed under the accommodating space <NUM> of the outer circumference surface of the movable part <NUM>.

In this case, the contact surface <NUM> may be a vertical surface which is disposed to face the cleaning surface <NUM>. A vertical length of the contact surface <NUM> may be set to be longer than that of the cleaning surface <NUM>.

Therefore, the whole of the cleaning surface <NUM> may contact the contact surface <NUM> at the standby position.

In the present embodiment, an outer diameter of a portion, where the contact surface <NUM> is provided, of the air guide <NUM> may be set to be greater than an inner diameter of a portion, where the cleaning surface <NUM> is provided, of the cleaning part <NUM>.

Therefore, the cleaning part <NUM> may be elastically deformed to the outside in a radius direction of the contact surface <NUM> at the standby position, and the cleaning surface <NUM> may contact the contact surface <NUM> in an elasticity-deformed state.

That is, at the standby position, since the cleaning surface <NUM> is in a state which compresses the contact surface <NUM>, a frictional force between the cleaning surface <NUM> and the contact surface <NUM> may increase, and thus, the cleaning surface <NUM> may be prevented from sliding along the contact surface <NUM> in a state where the manipulation part <NUM> is not manipulated.

In order to prevent particles from introduced into a space between the movable part <NUM> and the outer circumference surface of the air guide <NUM> in a state where the movable part <NUM> is accommodated into the accommodating space <NUM> at the standby position, the air guide <NUM> may include a contact projection <NUM>, and the frame <NUM> may include a projection seating groove <NUM> on which the contact projection <NUM> is seated.

The contact projection <NUM> may protrude downward from an upper side of the outer circumference surface of the air guide <NUM>. The contact projection <NUM> may be provided continuously along a circumference direction of the air guide <NUM>. That is, the contact projection <NUM> may be provided in a ring shape.

The projection seating groove <NUM> may be formed as an upper surface border of the frame <NUM> is recessed downward. The projection seating groove <NUM> may be provided in a ring shape in order for the contact projection <NUM> having a ring shape to be seated therein.

Therefore, at the standby position, the cleaning surface <NUM> and the projection seating groove <NUM> which are disposed apart from each other in a vertical direction may respectively contact the contact surface <NUM> and the contact projection <NUM> of the air guide <NUM>.

Therefore, two contact points may prevent particles from flowing to a gap between the air guide <NUM> and the movable part <NUM>.

A discharging guide <NUM> which guides discharging of air separated from dust in the second cyclone part <NUM> may be provided on the second cyclone part <NUM>.

The discharging guide <NUM> may be coupled to a lower portion of the air guide <NUM>. A coupling space <NUM> to which a border portion of the discharging guide <NUM> is to be disposed may be defined at a lower perimeter of the air guide <NUM>.

A portion of the air guide <NUM> may be seated on the upper surface <NUM> of the discharging guide <NUM> by the coupling space <NUM>.

The air guide <NUM> may include a first surface <NUM> which substantially horizontally extends in a direction from a lower end of the contact surface <NUM> to an inner portion and a second surface <NUM> which substantially vertically extends downward from an inner end portion of the first surface <NUM>.

Moreover, the first surface <NUM> and the second surface <NUM> may define the coupling space <NUM>. The first surface <NUM> of the air guide <NUM> may be seated on the upper surface <NUM> of the discharging guide <NUM>.

The discharging guide <NUM> may include an outer circumference surface <NUM>. A diameter of the outer circumference surface <NUM> of the discharging guide <NUM> may be provided to be less than that of the contact surface <NUM> of the air guide <NUM> so that the cleaning part <NUM> is smoothly lowered without interference caused by the discharging guide <NUM> when the movable part <NUM> is lowered (a diameter difference is D1).

Moreover, the cleaning surface <NUM> of the cleaning part <NUM> may further include a taper surface <NUM> so that the cleaning part <NUM> is smoothly lowered at a time when the cleaning surface <NUM> deviates from the contact surface <NUM> of the air guide <NUM>. The taper surface <NUM> may be an inclined surface which connects the upper surface <NUM> and the outer circumference surface <NUM> of the discharging guide <NUM>. The taper surface <NUM> may be inclined in order for a diameter thereof to be reduced in a direction from an outer circumference surface of the discharging guide <NUM> to an upper portion.

In this case, a difference between a minimum diameter of the outer circumference surface <NUM> of the discharging guide <NUM> and a diameter of the contact surface <NUM> of the air guide <NUM> may be D2. That is, an upper end of the outer circumference surface of the discharging guide <NUM> may be recessed inward, and a recessed depth may be maximum in an upper end portion.

Therefore, when the cleaning surface <NUM> of the cleaning part <NUM> deviates from the contact surface <NUM> of the air guide <NUM>, the cleaning surface <NUM> may restore to an original shape toward the taper surface <NUM> on the basis of an elastic restoring force. At this time, the cleaning surface <NUM> of the cleaning part <NUM> may contact at least a portion of the taper surface <NUM>.

In this case, the cleaning surface <NUM> of the cleaning part <NUM> may be set to be less than a maximum diameter of the outer circumference surface <NUM> of the discharging guide <NUM>.

Therefore, when the cleaning part <NUM> is continuously lowered in a state where the cleaning surface <NUM> is disposed on the taper surface <NUM>, the cleaning surface <NUM> may be elastically deformed from the outer circumference surface <NUM> of the discharging guide <NUM> to the outside in a radius direction thereof and may be lowered in contact with the outer circumference surface <NUM> of the discharging guide <NUM> in an elasticity-deformed state.

<FIG> is an enlarged view of a portion B of <FIG>.

Referring to <FIG>, the discharging guide <NUM> may further include a seating surface <NUM> on which the air guide <NUM> is disposed.

In this case, a sealing member <NUM> may be coupled to a lower surface of the air guide <NUM> and may be seated on the seating surface <NUM>.

An inner circumference surface of the discharging guide <NUM> may be provided to include a multi-layer and may include a first inner circumference surface <NUM> and a second inner circumference surface <NUM>.

In this case, a diameter of the first inner circumference surface <NUM> may be less than that of the second inner circumference surface <NUM>. The inner circumference surface of the discharging guide <NUM> may be provided as one inner circumference surface having a single diameter.

When the air guide <NUM> is seated on the discharge guide <NUM>, the second surface <NUM> of the air guide <NUM> may face the first inner circumference surface <NUM> of the discharging guide <NUM>.

Based on an assembly tolerance in a process of coupling the discharging guide <NUM> to the air guide <NUM>, a diameter of the first inner circumference surface <NUM> may be set to be greater than that of the second surface <NUM> of the air guide <NUM>.

In this case, it may be designed so that a difference D2 between a minimum diameter of the outer circumference surface <NUM> of the discharging guide <NUM> and a diameter of the contact surface of the air guide <NUM> is less than a difference D3 between a diameter of the first circumference surface <NUM> of the discharging guide <NUM> and a diameter of the second surface <NUM> of the air guide <NUM>.

Although not limited, D3 may be <NUM> or more times D2.

When a portion of the first circumference surface <NUM> of the discharging guide <NUM> is closer to the second surface <NUM> of the air guide <NUM> as much as possible to contact due to an assembly error, a difference between a diameter of the first circumference surface <NUM> of the discharging guide <NUM> and a diameter of the second surface <NUM> of the air guide <NUM> may more increase than D3 at a portion opposite to a corresponding portion.

For example, since it is designed that D2 is greater than D3 even when a difference between a diameter of the first circumference surface <NUM> of the discharging guide <NUM> and a diameter of the second surface <NUM> of the air guide <NUM> increases, a phenomenon where a portion, having a minimum diameter, of the outer circumference surface <NUM> of the discharging guide <NUM> is disposed to protrude more outward than the contact surface <NUM> of the air guide <NUM> in a radius direction thereof is prevented.

<FIG> is an enlarged view of a portion C of <FIG>.

Referring to <FIG>, a lower portion of the discharging guide <NUM> may be provided in a cylindrical shape, and a portion thereof may be accommodated into the filter part <NUM> having a cylindrical shape.

The discharging guide <NUM> may include an inserting part <NUM> inserted into the filter part <NUM>. A diameter of the outer circumference surface 158a of the inserting part <NUM> may be set to be less than an inner diameter of the filter part <NUM> so that the inserting part <NUM> is inserted into the filter part <NUM>.

A portion of the discharging guide <NUM> may be seated on an upper surface of the filter part <NUM> in a state where the inserting part <NUM> of the discharging guide <NUM> is inserted into the filter part <NUM>.

An outer diameter of the filter part <NUM> may be set to be less than a diameter of the outer circumference surface <NUM> of the discharging guide <NUM> so that the cleaning surface <NUM> of the cleaning part <NUM> contacting the outer circumference surface <NUM> of the discharging guide <NUM> is smoothly lowered to the filter part <NUM> in a lowering process.

Therefore, the cleaning surface <NUM> of the cleaning part <NUM> may smoothly move from the outer circumference surface <NUM> of the discharging guide <NUM> to the outer surface of the filter part <NUM>.

As described above, an outer diameter of the filter part <NUM> may be greater than a diameter of the cleaning surface <NUM>.

<FIG> is a cross-sectional view illustrating a state where a lower portion of a filter part according to an embodiment is seated on a dust guide.

Referring to <FIG> and <FIG>, the dust guide <NUM> may include a storage wall <NUM> which defines the second dust storage part <NUM> and a supporting part <NUM> provided at an upper side of the storage wall <NUM> to support the second cyclone part <NUM>.

The storage wall <NUM> may be provided in a pillar shape including a horizontal cross-sectional surface having a circular shape, and a diameter thereof may be provided to be reduced from an upper portion to a lower portion thereof so that a space of the first dust storage part <NUM> is maximized.

The dust guide <NUM> may further include an anti-scattering rib <NUM> which extends downward from an upper end of the storage wall <NUM>.

The anti-scattering rib <NUM> may be provided in, for example, a cylindrical shape and may surround an upper portion of the storage wall <NUM> with being apart from the storage wall <NUM>.

A diameter of the storage wall <NUM> may be reduced in a direction closer to a lower portion thereof, and thus, a space may be provided between an outer circumference surface of the storage wall <NUM> and the anti-scattering rib <NUM>.

The cyclone flow may be lowered while moving along an inner circumference surface of the first body <NUM>. When the cyclone flow reaches the body cover <NUM> in a process of lowering the cyclone flow, rotation movement may be changed to raising movement again.

For example, when raising movement of airflow is performed in the first dust storage part <NUM>, there may be a problem where dust stored in the first dust storage part <NUM> is scattered.

In the present embodiment, raising movement of airflow in the first dust storage part <NUM> may be again changed to lowering movement by the anti-scattering rib <NUM> in a space between anti-scattering rib <NUM> and the storage wall <NUM>. Therefore, scattering of the dust stored in the first dust storage part <NUM> may be prevented, thereby solving a problem where dust is reversely moved to the second cyclone part <NUM>.

The anti-scattering rib <NUM> may extend downward from an upper end of the storage wall <NUM>, and thus, dust separated from the first cyclone part <NUM> along with the cyclone flow may smoothly move to the first dust storage part <NUM> by using the anti-scattering rib <NUM>.

The supporting part <NUM> may include an inserting part <NUM> inserted into a lower portion of the filter part <NUM>. When the inserting part <NUM> of the supporting part <NUM> is inserted into the lower portion of the filter part <NUM>, a lower end of the filter part <NUM> may be seated on the supporting surface <NUM> disposed at a perimeter of the inserting part <NUM> in the supporting part <NUM>.

In a state where the filter part <NUM> is seated on the supporting surface <NUM>, the cleaning part <NUM> may slide along the filter part <NUM> while descending.

In order to prevent the outer circumference surface <NUM> of the supporting part <NUM> from interfering in the cleaning part <NUM> in a process of lowering the cleaning part <NUM>, the outer circumference surface <NUM> of the supporting part <NUM> may be provided to a diameter which is reduced in a direction closer to a lower portion. That is, the outer circumference surface <NUM> of the supporting part <NUM> may be inward inclined in a direction closer to a lower portion.

Moreover, a maximum diameter of the outer circumference surface of the supporting part <NUM> may be equal to or less than that of the outer circumference surface of the filter part <NUM>.

Moreover, the dust stored in the first dust storage part <NUM> may be compressed in a process of lowering the movable part <NUM>, and when the outer circumference surface <NUM> of the supporting part <NUM> is inclined inward, the compressed dust may be easily lowered.

The anti-scattering rib <NUM> may extend downward from a boundary portion between the supporting part <NUM> and the storage wall <NUM>. The outer circumference surface of the anti-scattering rib <NUM> may be inclined to configure a surface continuous with the outer circumference surface <NUM> of the supporting part <NUM>. That is, an outer diameter of the outer circumference surface of the anti-scattering rib <NUM> may be reduced in a direction closer to a lower portion.

<FIG> is a cross-sectional view taken along line D-D of <FIG>, <FIG> is a cross-sectional view taken along line E-E of <FIG>, and <FIG> is a cross-sectional view taken along line F-F of <FIG>.

Referring to <FIG> and <FIG>, the manipulation part <NUM> may include a first part <NUM> which is disposed within the handle part <NUM> and a second part <NUM> which extends from the first part <NUM> in a horizontal direction and is disposed outside the handle part <NUM>.

Since the second part <NUM> is disposed outside the handle part <NUM>, a user may press an upper surface of the second part <NUM>. In the manipulation part <NUM>, the second part <NUM> may be referred to as a press part.

Moreover, the manipulation part <NUM> may be disposed to be higher than the movable part <NUM>. Although not limited, the manipulation part <NUM> may be disposed close to an upper surface of the handle part <NUM>. Therefore, the user may easily check the manipulation part <NUM> to press the manipulation part <NUM>.

The first part <NUM> may include a first side part 711a which faces an outer circumference surface of the second main body <NUM> and is provided to have substantially the same as curvature as that of the outer circumference surface of the second main body <NUM>.

The second main body <NUM> may include a guide rib <NUM> which guides a portion of the first part <NUM>. The guide rib <NUM> may protrude from the outer circumference surface of the second main body <NUM> and may extend in a vertical direction.

The guide rib <NUM> may be rounded in a horizontal direction in order for first part <NUM> to stably move upward and downward. Therefore, the first part <NUM> may further include a second side part 711b which is rounded to have substantially the same curvature as that of the guide rib <NUM>.

In the present embodiment, the first side part 711a of the first part <NUM> may contact the second main body <NUM>, and the second side part 711b of the first part <NUM> may contact the guide rib <NUM>.

When the manipulation part <NUM> is lowered in a state where a plurality of points of the first part <NUM> contact a peripheral structure, a phenomenon where the manipulation part <NUM> is inclined in a horizontal direction in a lowering process may be prevented, and thus, the manipulation part <NUM> may be stably lowered (the same as a raising case).

The transfer part <NUM> may be connected to the first part <NUM>. A fitting groove <NUM> into which a portion of the transfer part <NUM> is fitted may be provided in the first part <NUM>.

In order to prevent a relative rotation of each of the transfer part <NUM> and the manipulation part <NUM> in a process of manipulating the manipulation part <NUM>, a horizontal cross-sectional surface of a portion <NUM>, into which the fitting groove <NUM> is inserted, of the transfer part <NUM> may be provided in a noncircular shape.

Therefore, a cross-sectional surface of the fitting groove <NUM> may be provided in a non-circular shape. The fitting groove <NUM> may be formed by upward recessing a lower surface of the first part <NUM>.

The manipulation part <NUM> may further include a neck part <NUM> provided between the first part <NUM> and the second part <NUM>.

The neck part <NUM> may be provided to have a width which is narrower than a horizontal-direction width of each of the first part <NUM> and the second part <NUM>. The neck part <NUM> may be disposed in the slot <NUM> of the handle part <NUM>.

The handle body <NUM> may include a guide end part <NUM> which contacts the neck part <NUM> in a state where the neck part <NUM> is disposed in the slot <NUM>.

One side of the neck part <NUM> may contact the outer circumference surface of the second main body <NUM>, and the other side thereof may contact the guide end part <NUM>. The guide end part <NUM> may surface-contact the neck part <NUM>.

When the guide end part <NUM> contacts the neck part <NUM> of the manipulation part <NUM> as described above, a phenomenon where the manipulation part <NUM> is inclined in a left-right direction and rotates in a horizontal direction may be prevented, and thus, the manipulation part <NUM> may be stably lowered (the same as a raising case).

Since a user should press the second part <NUM>, a horizontal-direction width of the second part <NUM> may be provided to be greater than that of the first part <NUM>.

Moreover, the second part <NUM> may be bent to distance from the outer circumference surface of the second main body <NUM> with respect to the neck part <NUM>, so that a space enabling the second part <NUM> to be pressed is secured at a boundary portion between the second main body <NUM> and the handle body <NUM>.

Therefore, the second part <NUM> may be apart from the outer circumference surface of the second main body <NUM>. That is, the second part <NUM> may include a side part which is rounded in a direction distancing from the outer circumference surface of the second main body <NUM>.

Since the second part <NUM> is bent to distance from the outer circumference surface of the second main body <NUM>, the second part <NUM> may be lowered while covering the slot <NUM> in a process of lowering the manipulation part <NUM>, thereby minimizing a degree to which an internal structure of the handle part <NUM> is exposed at the outside through the slot <NUM>.

Referring to <FIG>, a virtual line A2 which extends in a tangential direction with respect to the outer circumference surface of the second main body <NUM> and passes through the transfer part <NUM> may be disposed to pass through the second part <NUM> or to overlap the second part <NUM> in a vertical direction.

Moreover, the second part <NUM> may be bent at the neck part <NUM> so that the second part <NUM> of the manipulation part <NUM> is disposed to the left of the handle part <NUM> and is disposed close to the handle part <NUM> in a state where a right hand grips the handle part <NUM>. Accordingly, the user may easily check and manipulate the second part <NUM> of the manipulation part <NUM>.

An elastic member <NUM> for elastically supporting the manipulation part <NUM> may be supported by the guide rib <NUM> in a state where the compression mechanism <NUM> is disposed at the standby position.

When the elastic member <NUM> supports the manipulation part <NUM>, the compression mechanism <NUM> may be prevented from being undesirably lowered by a weight of the compression mechanism <NUM>.

In detail, the elastic member <NUM> may include a first elastic body <NUM>, a supporting body <NUM> which extends in a bent shape from an upper end of the first elastic body <NUM> and supports a lower portion of the manipulation part <NUM>, and a second elastic body <NUM> which extends from an upper end of the supporting body <NUM>.

The first elastic body <NUM> may extend in a vertical direction, and a portion of a lower portion thereof may be bent and may extend in a horizontal direction. That is, the first elastic body <NUM> may be provided in, for example, an L-shape.

Therefore, the first elastic body <NUM> may include a vertical extension part 792a and a horizontal extension part 792b.

The vertical extension part 792a may contact the guide rib <NUM>.

The supporting rib <NUM> may extend from the guide rib <NUM> in a horizontal direction. Also, the horizontal extension part 792b of the first elastic body <NUM> may be seated on the supporting rib <NUM>.

A fixing rib <NUM> for fixing a position of the first elastic body <NUM> may be provided on the outer circumference surface of the second main body <NUM>. The fixing rib <NUM> may be provided in, for example, an L-shape.

The fixing rib <NUM> may include a vertical rib 192a which extends in a vertical direction and a horizontal rib 192b which extends from a lower end of the vertical rib 192a in a horizontal direction.

The vertical extension part 792a may be disposed between the vertical rib 192a and the guide rib <NUM>. Also, the horizontal extension part 792b may be disposed between the supporting rib <NUM> and the horizontal rib 192b.

In order to limit the vertical movement and horizontal movement of the first elastic body <NUM>, the vertical extension part 792a may contact the vertical rib 192a and the guide rib <NUM>, and the horizontal extension part <NUM> may contact the supporting rib <NUM> and the horizontal rib 192b.

A vertical length of the vertical rib 192a may be set to be shorter than that of the vertical extension part 792a so that a portion of the vertical extension part 792a is elastically deformed.

Therefore, the vertical rib 192a may contact only a portion of the vertical extension part 792a, and a portion, which does not contact the vertical extension part 792a, of the vertical rib 192a may be elastically deformed.

In order to prevent the vertical extension part 792a from being damaged by the vertical rib 192a in a process where the vertical rib 192a is elastically deformed, an inclined surface 192c may be provided on an upper surface of the vertical rib 192a.

The inclined surface 192c may be provided to be downward inclined in a direction from an upper end of the vertical rib 192a to the vertical extension part 792a.

The supporting body <NUM> may include a first inclined part 794a which is upward inclined in a direction closer to the transfer part <NUM> at an upper end of the vertical extension part <NUM> and a second inclined part 794b which is upward inclined in a direction distancing from the transfer part <NUM> at an upper end of the first inclined part 794a.

A slot <NUM> through which the supporting body <NUM> passes may be provided in the guide rib <NUM>.

The transfer part <NUM> may be disposed apart from the guide rib <NUM> in a horizontal direction, and the supporting body <NUM> may be disposed between the guide rib <NUM> and the transfer part <NUM> to pass through the slot <NUM>. Also, the supporting body <NUM> may support a lower surface of the first part <NUM> of the manipulation part <NUM>.

A horizontal-direction length of each of the first inclined part 794a and the second inclined part 794b may be set to be longer than that of the slot <NUM> so that the supporting body <NUM> supports the lower surface of the first part <NUM> of the manipulation part <NUM>.

A horizontal-direction length of each of the first inclined part 794a and the second inclined part 794b may be set to be shorter than that of each of the vertical extension part 792a and the transfer part <NUM>, so as to prevent the supporting body <NUM> from contacting the transfer part <NUM> with supporting the first part <NUM> of the manipulation part <NUM>.

Therefore, the lower surface of the first part <NUM> of the manipulation part <NUM> may substantially contact the second inclined part 794b.

The slot <NUM> may include a first inclined surface 194a contacting the first inclined part 794a and a second inclined surface 194b contacting the second inclined part 794b, so as to prevent a phenomenon where the compression mechanism <NUM> sags downward due to the elastic deformation of the supporting body <NUM> which is caused by a weight of the compression mechanism <NUM> in a state where the lower surface of the first part <NUM> of the manipulation part <NUM> contacts the second inclined part 794b.

The second elastic body <NUM> may extend vertically from an upper end of the second inclined part 794b. The second elastic body <NUM> may contact the guide rib <NUM> to prevent the supporting body <NUM> from being excessively deformed and to maintain an inclined angle of each of the first inclined part 794a and the second inclined part 794b.

The supporting body <NUM> in the elastic member <NUM> may be disposed on a vertical movement path of the manipulation part <NUM>.

Therefore, the elastic member <NUM> may provide an elastic force to the manipulation part <NUM> before manipulating the manipulation part <NUM>. Also, the elastic member <NUM> may not provide an elastic force to the manipulation part <NUM> after the manipulation part <NUM> is manipulated to pressurize and deform the elastic member <NUM>.

A force greater than an elastic force of the elastic member <NUM> may be applied for deforming the elastic member <NUM> at an initial manipulation stage of the manipulation part <NUM>, and after the elastic member <NUM> is deformed, the manipulation part <NUM> may be pressed in a state where the elastic force of the elastic member <NUM> is not applied to the manipulation part <NUM>, thereby decreasing a force applied to the manipulation part <NUM>.

That is, the elastic member <NUM> may not continuously provide the elastic force to the manipulation part <NUM> in a process of lowering the manipulation part <NUM>, and thus, a force for manipulating the manipulation part <NUM> may be reduced.

As described above, the guide body <NUM> may be provided outside the first body <NUM>.

The guide body <NUM> may protrude from the outer circumference surface of the first body <NUM>, and an upper sidewall <NUM> of the guide body <NUM> may overlap the transfer part <NUM> in a vertical direction.

Therefore, the transfer part <NUM> may pass through the upper sidewall <NUM> of the guide body <NUM>. The upper sidewall <NUM> of the guide body <NUM> may be substantially a horizontal surface, and an opening <NUM> through which the transfer part <NUM> passes may pass through the upper sidewall <NUM> in a vertical direction.

That is, the transfer part <NUM> may pass through the opening <NUM> in a vertical direction and may move in a vertical direction even in a state where the transfer part <NUM> passes through the opening <NUM>.

According to the present embodiment, the transfer part <NUM> may pass through the opening <NUM>, and moreover, a size of the opening <NUM> for providing a path through which the transfer part <NUM> moves may be minimized, thereby preventing the internal air and dust of the first body <NUM> from being leaked to the outside through the opening <NUM>.

At least a portion of the opening <NUM> may be provided to have a diameter which increases in a direction closer to a lower portion thereof, so that the transfer part <NUM> moves smoothly in a vertical direction in a state where the transfer part <NUM> passes through the upper sidewall <NUM> of the guide body <NUM>. That is, the opening <NUM> may include a lower inclined surface <NUM>. A minimum diameter of the opening <NUM> may be substantially the same as an outer diameter of the transfer part <NUM>.

Therefore, the transfer part <NUM> may contact a portion of a perimeter surface of the opening <NUM> and may not contact the other portion with being disposed in the opening <NUM>.

A contact area between the transfer part <NUM> and the perimeter surface of the opening <NUM> may be reduced, and thus, a frictional force between the perimeter surface of the opening <NUM> and the transfer part <NUM> may decrease, whereby the transfer part <NUM> may smoothly move upward and downward.

The coupling part <NUM>, coupled to the transfer part <NUM>, of the frame <NUM> may be disposed vertically under the opening <NUM>. That is, the transfer part <NUM> passing through the opening <NUM> may be coupled to the coupling part <NUM>.

A diameter of the coupling part <NUM> may be set to be greater than that of the opening <NUM>.

Moreover, the coupling part <NUM> may contact a lower surface of the upper sidewall <NUM> at the standby position. Accordingly, the coupling part <NUM> may cover the opening <NUM> at the standby position.

Therefore, in a state where the movable part <NUM> is disposed at the standby position, the internal air and dust of the first body <NUM> may be effectively prevented from being leaked through the opening <NUM>.

In the present embodiment, when the user manipulates the manipulation part <NUM> in one direction, the compression mechanism <NUM> may be lowered, and in a state where the compression mechanism <NUM> moves up to a lowering position, the user may raise the manipulation part <NUM> in the other direction to return the manipulation part <NUM> to the standby position.

In the present embodiment, the cleaner <NUM> may not include a return means for returning the compression mechanism <NUM> from the lowering position to the standby position.

The return means may prevent the compression mechanism <NUM> from being lowered by a weight thereof when the compression mechanism <NUM> is disposed at the standby position.

However, in the present embodiment, although the return means is not provided, the compression mechanism <NUM> may not be lowered by a weight thereof at the standby position.

This is because three portions of the compression mechanism <NUM> are supported at the standby position of the compression mechanism <NUM>.

First, the first part <NUM> of the manipulation part <NUM> may be supported by the elastic member <NUM>, and thus, lowering of the manipulation part <NUM> may be limited by a weight of the compression mechanism <NUM>. As described above, the elastic member <NUM> may not provide the elastic force to the manipulation part <NUM> in a period, other than an initial period, of a lowering period of the manipulation part <NUM>.

Second, lowering of the compression mechanism <NUM> caused by a weight thereof may be limited by a frictional force between the transfer part <NUM> and the perimeter surface of the opening <NUM>. That is, since the transfer part <NUM> contacts the perimeter surface of the opening <NUM>, the frictional force between the transfer part <NUM> and the perimeter surface of the opening <NUM> may act as a supporting force of the compression mechanism <NUM>.

Third, lowering of the compression mechanism <NUM> caused by a weight thereof may be limited by a contact frictional force between the contact surface <NUM> of the air guide <NUM> and the cleaning surface <NUM> of the cleaning part <NUM>.

Due to three structures according to the present embodiment, a return means for returning the compression mechanism <NUM> is not needed, and thus, a structure where the return means is formed and disposed may be omitted, thereby simplifying a structure.

Moreover, the return means may not smoothly operate due to dust penetrating into the return means, thereby preventing a phenomenon where the compression mechanism <NUM> does not smoothly move.

<FIG> is a cross-sectional view taken along line G-G of <FIG>, <FIG> is a perspective view illustrating an internal structure of a first body according to an embodiment, and <FIG> is a perspective view illustrating a guide body of a first body according to an embodiment.

Referring to <FIG>, the guide body <NUM> may have a structure which is formed by outward recessing a portion of the first body <NUM>, and the guide body <NUM> may provide a movement space <NUM> for movement of the transfer part <NUM> and the coupling part <NUM>.

The guide body <NUM> may be rounded to be convex outward from the first body <NUM>. That is, a horizontal cross-sectional surface of the guide body <NUM> may be provided in an approximately semicircular shape.

The movement space <NUM> may communicate with an internal space of the first body <NUM>. The internal space of the first body <NUM> may communicate with the movement space <NUM> of the guide rib <NUM> through a communication hole.

The communication hole may include an upper hole <NUM> and a lower hole <NUM> which extends downward from the upper hole <NUM> and has a width greater than that of the upper hole <NUM>.

The reason that a width of the lower hole <NUM> is set to be greater than that of the upper hole <NUM> is for enabling the coupling part <NUM> of the movable part <NUM> to be easily inserted into the movement space <NUM> through the lower hole <NUM>. Accordingly, the assemblability of the movable part <NUM> may be enhanced.

For example, a width W1 of the lower hole <NUM> may be set to be greater than a diameter of the coupling part <NUM>.

Moreover, an outer circumference surface of the coupling part <NUM> may be apart from an inner circumference surface of the guide body <NUM> in a state where the coupling part <NUM> passes through the lower hole <NUM>. This is for preventing friction between the coupling part <NUM> and the inner circumference surface of the guide body <NUM> in a process of lowering and raising the compression mechanism <NUM>.

The first body <NUM> may include a pair of ribs <NUM> which are apart from each other in a horizontal direction. The pair of ribs <NUM> may substantially define the upper hole <NUM>. That is, the upper hole <NUM> may be disposed between the pair of ribs <NUM>.

The pair of ribs <NUM> may be provided at a portion, corresponding to an upper space, of a movement space of the first body <NUM> so as to decrease a width of the upper hole <NUM>.

An interval (i.e., a width of the upper hole <NUM>) between the pair of ribs <NUM> may be set to be less than a diameter of the coupling part <NUM> and greater than a horizontal-direction width of the extension part <NUM> of the frame <NUM>.

Therefore, when cyclone flow is rotated in an upper portion of the first body <NUM>, the amount of dust penetrating into the movement space <NUM> may be minimized.

A lower sidewall <NUM> of the guide body <NUM> may be disposed at a height from a lower end of the first body <NUM>, and a lower opening <NUM> may be provided in the lower sidewall <NUM>.

In an assembly process, the lower opening <NUM> may provide a path through which an instrument for fastening the coupling part <NUM> to the transfer part <NUM> moves in a state where the movable part <NUM> is disposed in the first body <NUM> and the coupling part <NUM> is disposed in the guide body <NUM>.

Therefore, a sealing member <NUM> may be coupled to the lower opening <NUM>, for preventing the leakage of air after assembly is completed. For example, the sealing member <NUM> may include an inserting part <NUM> inserted into a space of the guide body <NUM> through the opening <NUM>.

Moreover, the sealing member <NUM> may further include a stopper <NUM> having a horizontal cross-sectional area which is greater than that of the inserting part <NUM>, for limiting an insertion depth of the inserting part <NUM>.

The sealing member <NUM> may be formed of, for example, a rubber material, and thus, even without a separate coupling means, the inserting part <NUM> may be inserted into the guide body <NUM>, whereby the sealing member <NUM> may be coupled to the guide body <NUM>.

An upper surface of the sealing member <NUM> may be downward inclined in a direction closer to a center of the first body <NUM>. That is, the sealing member <NUM> may include an inclined surface <NUM>.

A lowest point of the inclined surface <NUM> may be disposed adjacent to the lower hole <NUM> and may be disposed to be higher than a lowest point 186a of the lower hole <NUM>.

The movement space <NUM> of the guide body <NUM> may communicate with an internal space of the first body <NUM>, and thus, in a cleaning process using the cleaner <NUM>, the internal dust of the first body <NUM> may move to the movement space <NUM>.

The dust which has moved to the movement space <NUM> may be dropped to an upper surface of the sealing member <NUM>. In this case, the upper surface of the sealing member <NUM> may be the inclined surface <NUM>, and thus, dust dropped to the inclined surface <NUM> of the sealing member <NUM> may smoothly penetrate into the first body <NUM>.

For example, even when dust is collected on the inclined surface of the sealing member <NUM>, the coupling part <NUM> may downward pressurize the dust disposed on the inclined surface <NUM> in an operating process of the compression mechanism <NUM>, and thus, the dust on the inclined surface <NUM> may flow into the first body <NUM> along the inclined surface <NUM>.

<FIG> is a cross-sectional view taken along line H-H of <FIG>, and <FIG> is a cross-sectional view taken along line I-I of <FIG>.

Referring to <FIG>, <FIG>, and <FIG>, a lengthwise-direction axis A5 of the suction part <NUM> may not extend to the main body <NUM> in a tangential direction with the suction part <NUM> being coupled to the main body <NUM>.

In order for cyclone flow to be generated in the main body <NUM>, the air may flow into the first body <NUM> in the tangential direction and may move along the inner circumference surface of the first body <NUM>.

Therefore, the suction part <NUM> may include an inflow guide <NUM> for guiding air, flowing in the suction part <NUM>, to flow into the first body <NUM> in the tangential direction.

Therefore, a direction of air flowing along the suction part <NUM> may be changed by the inflow guide <NUM>, and the air may flow into the first body <NUM>.

In the present embodiment, in a state where the compression mechanism <NUM> moves to the standby position, at least a portion of the movable part <NUM> may be disposed to face the suction part <NUM>. That is, with respect to a floor of the main body <NUM>, at least a portion of the movable part <NUM> may be disposed at the same height as the suction part <NUM>.

The movable part <NUM> may be disposed at a position which does not face the suction part <NUM>, but in this case, there may be a problem where a height of the main body <NUM> increases.

The filter part <NUM> may be cleaned by the movable part <NUM> in a state where the movable part <NUM> is disposed in a space between the outer circumference surface of the filter part <NUM> and the inner circumference surface <NUM> of the first body <NUM> in a cleaning process.

Therefore, the outer circumference surface of the movable part <NUM> may be disposed adjacent to the inner circumference surface <NUM> of the first body <NUM>.

When the movable part <NUM> is disposed on a path from the suction part <NUM> to the first body <NUM>, the movable part <NUM> may act as a flow resistor, and due to this, flow performance may decrease.

Therefore, in the present embodiment, in order to minimize a degree to which the movable part <NUM> acts as a flow resistor of air flowing into the first body <NUM>, the recessed portion <NUM> for increasing a space between the inner circumference surface <NUM> of the first body <NUM> and the outer circumference surface of the movable part <NUM> may be provided in the movable part <NUM> as described above.

In detail, the recessed portion <NUM> may be disposed at a portion disposed between a first extension line A3 of the inflow guide <NUM> and a second extension line A4 which extends in a tangential direction of the first body <NUM> in parallel with the first extension line A3, in the movable part <NUM>. In this case, the first extension line A3 may be disposed between the second extension line A4 and a center of the first body <NUM>.

Therefore, a space between the outer circumference surface of the movable part <NUM> and the inner circumference surface <NUM> of the first body <NUM> may increase by a recessed depth of the recessed portion <NUM>. Accordingly, air flowing into the first body <NUM> through the suction part <NUM> may be prevented from directly colliding with the movable part <NUM>.

In order for the frame guide <NUM> to continuously guide air flowing along the inflow guide <NUM>, the frame guide <NUM> may be disposed on the first extension line A3, or an extension direction of the frame guide <NUM> may be parallel to the first extension line A3.

Since the movable part <NUM> should be disposed in a space between the filter part <NUM> and the inner circumference surface <NUM> of the first body <NUM>, movement of the movable part <NUM> should be performed without an increase in a size of the first body <NUM>.

Therefore, in the present embodiment, the movable part <NUM> may be disposed inward in a radius direction of the inner circumference surface <NUM> which is a surface enabling cyclone flow to be generated in the first body <NUM>, and the transfer part <NUM> may be disposed outward in the radius direction of the inner circumference surface <NUM> which is a surface enabling cyclone flow to be formed in the first body <NUM>. Also, the transfer part <NUM> may be connected to the movable part <NUM> by the extension part <NUM> and the coupling part <NUM> of the frame <NUM>.

That is, the transfer part <NUM> may be disposed outward in a radius direction of an inner circumference surface where cyclone flow is generated in the first cyclone part <NUM> and may be disposed outward in a radius direction of an inner circumference surface of the dust container <NUM>.

Therefore, a distance between a center of the first cyclone part <NUM> (or a cyclone flow axis A1) and the transfer part <NUM> may be longer than a distance between the center of the first cyclone part <NUM> (or the cyclone flow axis A1) and an inner circumference surface <NUM> where cyclone flow is generated in the first body <NUM>.

Therefore, interference between the transfer part <NUM> and an internal structure of the first body <NUM> may be prevented in a process of transferring, by transfer part <NUM>, the manipulation force of the manipulation part <NUM> to the movable part <NUM>.

<FIG> is a diagram illustrating positions of a compression mechanism and a filter part in a state where the compression mechanism according to an embodiment is lowered, and <FIG> is a diagram illustrating a state where a compression mechanism according to an embodiment is lowered and compresses dust in a dust container.

Referring to <FIG>, <FIG>, <FIG>, and <FIG>, in a state where the compression mechanism <NUM> moves to the standby position, the user may perform cleaning by using the cleaner <NUM>.

Based on an operation of the suction motor <NUM>, air and dust suctioned through the suction part <NUM> may be separated from each other while flowing along the inner circumference surface of the first cyclone part <NUM>.

Dust separated from air may flow downward and may be stored in the first dust storage part <NUM>. Air separated from dust may pass through the filter part <NUM>, and then, may flow to the second cyclone part <NUM>.

Dust separated from air in the second cyclone part <NUM> may be discharged from the second cyclone part <NUM>, may flow downward, and may be stored in the second dust storage part <NUM>. On the other hand, air separated from dust in the second cyclone part <NUM> may be discharged from the second cyclone part <NUM> through the discharge guide <NUM>. Air discharged from the second cyclone part <NUM> may be raised by the air guide <NUM>, and then, may pass through the suction motor <NUM> and may be discharged to the outside of the main body <NUM>.

After ending of the cleaning, the user may pressurize the manipulation part <NUM>. Therefore, the manipulation force of the manipulation part <NUM> may be transferred to the movable part <NUM> through the transfer part <NUM>. Accordingly, the movable part <NUM> may be lowered by a lowering force of the manipulation part <NUM>.

The movable part <NUM> may perform three functions in a process of lowering the movable part <NUM>.

First, the movable part <NUM> may perform a cleaning function of the filter part <NUM>.

The cleaning surface <NUM> of the cleaning part <NUM> may contact the filter part <NUM> in a process of lowering the movable part <NUM>, and the movable part <NUM> may be continuously lowered in a state where the cleaning surface <NUM> contacts the filter part <NUM>, whereby the filter part <NUM> may be cleaned by the cleaning surface <NUM>.

Second, in a state where the body cover <NUM> closes a lower portion of the first body <NUM>, the movable part <NUM> may compress dust in the first dust storage part <NUM> in a process of lowering the movable part <NUM>.

Third, in a state where the body cover <NUM> opens the lower portion of the first body <NUM>, the movable part <NUM> may discharge the dust, stored in the first dust storage part <NUM>, to the outside of the first body <NUM> in a process of lowering the movable part <NUM>.

Particularly, dust disposed between the filter part <NUM> and the inner circumference surface <NUM> of the first body <NUM> may be downward pushed by the movable part <NUM> and may be effectively discharged from the first body <NUM>.

In this case, the user may lower the compression mechanism <NUM> a plurality of times to compress dust in a state where the body cover <NUM> is closed, and then, in a state where the body cover <NUM> is opened, the user may lower the compression mechanism <NUM> to allow dust to be discharged from the first body <NUM>.

The movable part <NUM> may be lowered while cleaning the filter part <NUM>, and when the movable part <NUM> contacts the dust stored in the first dust storage part <NUM> in a process of lowering the movable part <NUM>, the movable part <NUM> may compress the first dust storage part <NUM>.

As described above, in a process of lowering the movable part <NUM>, one or more of the frame guides <NUM> and the pressurization rib <NUM> may compress the dust in the first dust storage part <NUM>, and based on additional lowering of the movable part <NUM>, the other portion of the movable part <NUM> may compress dust.

As in <FIG>, the coupling part <NUM> may be substantially disposed at a lowermost portion of the frame <NUM>. That is, since the coupling part <NUM> is disposed at a lower portion in the movable part <NUM>, a distance D4 between the coupling part <NUM> and the manipulation part <NUM> may increase.

Moreover, the manipulation part <NUM> may be disposed close to the upper surface of the handle part <NUM>, and thus, the distance D4 between the coupling part <NUM> and the manipulation part <NUM> may increase.

The distance D4 between the coupling part <NUM> and the manipulation part <NUM> may determine a stroke for the vertical movement of the compression mechanism <NUM>, and when the distance D4 between the coupling part <NUM> and the manipulation part <NUM> increases, a vertical movement stroke of the compression mechanism <NUM> may increase.

When the vertical movement stroke of the compression mechanism <NUM> increases, compression performance for the dust stored in the first dust storage part <NUM> may be enhanced.

<FIG> is a side view of the cleaner of <FIG>, and <FIG> is a plan view of the cleaner of <FIG>.

Referring to <FIG> and <FIG>, the handle body <NUM> in the handle part <NUM> may include a handle axis A6. The handle axis A6 may be disposed to be inclined at a certain angle with respect to the cyclone flow axis A1 of the first cyclone part <NUM>.

<FIG> is a plan view of the cleaner <NUM> when the cleaner <NUM> is seen from above in a state where the dust container <NUM> is disposed at a lowermost portion and the cyclone flow axis A1 of the first cyclone part <NUM> is vertically disposed.

As in <FIG>, when the cleaner <NUM> is seen from above, the handle axis A6 may be inclined with respect to a floor surface, and thus, the handle axis A6 may extend in the form of an axial line L5 having a certain length within a length range of the handle body <NUM>.

An extension line extending the axial line L5 may pass through the cyclone flow axis A1 of the first cyclone part <NUM>. The axial line L5 may include a first point P1 disposed farthest away from the main body <NUM> and a second point P2 disposed closest to the main body <NUM>.

Two extension lines L6 and L7 which pass through the first point P1 and extend in a tangential-line direction of the main body <NUM> may be defined.

In this case, a portion of the manipulation part <NUM> according to the present invention is disposed in a region between the outer surface of the main body <NUM> and the two extension lines L6 and L7 (a first virtual line L6 and a second virtual line L7).

Claim 1:
A cleaner (<NUM>) comprising:
a suction part (<NUM>);
a main body (<NUM>) including a body (<NUM>), including a cyclone part (<NUM>) configured to separate dust from air suctioned through the suction part (<NUM>) and a dust container (<NUM>) configured to store the dust separated by the cyclone part (<NUM>), and a body cover (<NUM>) configured to open or close a lower portion of the body (<NUM>);
a handle part (<NUM>) coupled to the main body (<NUM>), the handle part (<NUM>) including a handle body (<NUM>) including a handle axis (A6);
a filter part (<NUM>) disposed in the body (<NUM>) and configured to filter air in a process where air separated from dust in the cyclone part (<NUM>) passes through the filter part (<NUM>);
a movable part (<NUM>) configured to move along a space between an outer portion of the filter part (<NUM>) and an inner circumference surface of the body (<NUM>) in the body (<NUM>);
a manipulation part (<NUM>) disposed outside the main body (<NUM>) and manipulated for moving the movable part (<NUM>); and
a transfer part (<NUM>) passing through the main body (<NUM>) and connecting the movable part (<NUM>) to the manipulation part (<NUM>),
wherein, when the cleaner (<NUM>) is seen from above in a state where the dust container (<NUM>) is disposed at a lowermost portion and a cyclone flow axis (A1) of the cyclone part (<NUM>) is vertically disposed,
the handle axis (A6) extends in the form of an axial line (L5) having a certain length within a length range of the handle body (<NUM>),
the axial line (L5) comprises a first point (P1) disposed farthest away from the main body (<NUM>) and a second point (P2) disposed closest to the main body (<NUM>), and
when two lines passing through the first point (P1) and extending in a tangential-line direction of the main body (<NUM>) are defined as a first extension line (L6) and a second extension line (L7),
wherein
a portion of the manipulation part (<NUM>) is disposed in a region formed by an outer surface of the main body (<NUM>) and the first and second virtual lines (L6, L7), and
another portion of the manipulation part (<NUM>) is disposed outside the region formed by the outer surface of the main body (<NUM>) and the first and second virtual lines (L6, L7).