WO2024185963A1 - 청소기 - Google Patents
청소기 Download PDFInfo
- Publication number
- WO2024185963A1 WO2024185963A1 PCT/KR2023/019805 KR2023019805W WO2024185963A1 WO 2024185963 A1 WO2024185963 A1 WO 2024185963A1 KR 2023019805 W KR2023019805 W KR 2023019805W WO 2024185963 A1 WO2024185963 A1 WO 2024185963A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drum
- core shaft
- cleaner
- drum body
- brush
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/02—Nozzles
- A47L9/04—Nozzles with driven brushes or agitators
- A47L9/0461—Dust-loosening tools, e.g. agitators, brushes
- A47L9/0466—Rotating tools
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/02—Nozzles
- A47L9/04—Nozzles with driven brushes or agitators
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/02—Nozzles
- A47L9/04—Nozzles with driven brushes or agitators
- A47L9/0461—Dust-loosening tools, e.g. agitators, brushes
- A47L9/0488—Combinations or arrangements of several tools, e.g. edge cleaning tools
Definitions
- the present disclosure relates to a vacuum cleaner including a drum brush.
- a vacuum cleaner is a device that sweeps or scatters foreign substances such as dust or hair present in a cleaning area, and then sucks in the scattered foreign substances such as dust or hair using suction power to clean the area to be cleaned.
- the vacuum cleaner includes a vacuum cleaner body, a suction head having a suction port and connected to the vacuum cleaner body by a connecting pipe, and a drum rotatably mounted on the suction head.
- the drum includes a drum body formed of hard metal or plastic and a brush having a certain length on the outer surface of the drum body.
- One aspect of the present disclosure provides a vacuum cleaner that is easy to maintain.
- One aspect of the present disclosure provides a cleaner capable of cutting foreign matter entangled in a drum brush.
- One aspect of the present disclosure provides a vacuum cleaner in which foreign substances are automatically cut off as a drum brush rotates.
- One aspect of the present disclosure provides a vacuum cleaner capable of sucking foreign substances entangled in a drum brush into a dust collector.
- a cleaner in one embodiment, includes a housing having a suction port configured to suck in foreign substances, a motor configured to generate rotational force, and a drum brush disposed inside the housing and configured to rotate by the rotational force of the motor, wherein the drum brush may include a drum body, a collecting portion having an opening, a tapered portion configured to have a diameter that decreases toward the collecting portion along an axial direction of the drum body so that when the drum body rotates, sucked foreign substances move toward the collecting portion and then through the opening, a drum body including a hollow portion, a core shaft disposed in the hollow portion, and a cutting member provided on the core shaft at a position corresponding to the opening inside the hollow portion and configured to cut foreign substances moved through the opening.
- a cleaner includes a housing having a suction port configured to suck in foreign substances, a motor configured to generate rotational force, and a drum brush disposed inside the housing and configured to rotate by the rotational force.
- the drum brush may include a drum body including a collecting portion having an opening, a tapered portion having a diameter that decreases in an axial direction toward the collecting portion so that foreign substances sucked when the drum brush rotates move to the collecting portion and then through the opening, and a hollow portion.
- the drum brush may include a core shaft disposed in the hollow portion and fixed to the housing so as to limit rotation of the core shaft when the drum brush rotates.
- the drum brush may include a cutting member coupled to the core shaft at a position corresponding to the opening inside the hollow portion so as to cut foreign substances moved through the hollow portion.
- a cleaner may include a housing having a suction port configured to suck in foreign substances, a motor configured to generate rotational force, and a drum brush disposed inside the housing and configured to rotate by the rotational force.
- the drum brush may include a drum body, a collecting portion having an opening disposed in a central region along an axial direction of the drum body, and a first tapered portion and a second tapered portion provided on both sides of the collecting portion so that foreign substances sucked when the drum brush rotates are moved to the collecting portion and then moved through the opening, the first tapered portion and the second tapered portion having a diameter that decreases in a direction toward the collecting portion.
- the drum brush may include a core shaft disposed in the hollow portion and fixed to the housing so as to limit rotation of the core shaft when the drum brush rotates.
- the drum brush may include a cutting member disposed inside the hollow portion and provided on the core shaft so that foreign substances moved through the opening are cut.
- FIG. 1 is a perspective view illustrating a vacuum cleaner according to one embodiment of the present disclosure.
- Figure 2 is a perspective view illustrating the suction head of the vacuum cleaner of Figure 1.
- FIG. 3 is a drawing illustrating a drum brush mounted on a vacuum cleaner according to one embodiment.
- Figure 4 is an exploded view showing the suction head of Figure 2 in disassembly.
- Figure 5 is a drawing showing the method of combining a drum brush and a housing.
- Figure 6 is a bottom view showing a suction head equipped with a drum brush.
- FIG. 7 is a drawing illustrating a drum brush according to another embodiment.
- Fig. 8 is an exploded view showing a part of the drum brush of Fig. 7.
- Figure 9 is a drawing illustrating the process in which foreign matter wrapped around the drum brush of Figure 7 moves to the collection section according to the rotation of the drum body.
- Figure 10 is a drawing showing a state in which foreign matter is wrapped around the collecting part of the drum brush of Figure 7.
- Figure 11 is an enlarged drawing of the collection section of Figure 10.
- Figure 12 is a drawing showing a foreign substance being cut by a cutting member.
- FIG. 13 is a cross-sectional drawing of a cutting member and a drum brush equipped with the cutting member according to one embodiment.
- FIG. 14 is a cross-sectional drawing of a cutting member and a drum brush equipped with the cutting member according to one embodiment.
- FIG. 15 is a cross-sectional drawing of a cutting member and a drum brush equipped with the cutting member according to one embodiment.
- FIG. 16 is a cross-sectional drawing of a cutting member and a drum brush equipped with the cutting member according to one embodiment.
- FIG. 17 is a drawing illustrating a drum brush according to one embodiment.
- Figure 18 is a bottom view showing the suction head equipped with the drum brush of Figure 17.
- Figure 19 is a drawing illustrating the process in which foreign matter wrapped around the drum brush of Figure 17 moves to the collection section according to the rotation of the drum body.
- Fig. 20 is an enlarged drawing of the collection section in the drum brush of Fig. 17.
- FIG. 21 is a drawing illustrating a drum brush according to one embodiment.
- first may be referred to as the second component
- second component may also be referred to as the first component.
- and/or includes any combination of a plurality of related listed items or any item among a plurality of related listed items.
- a stick vacuum cleaner which is a type of vacuum cleaner
- the configuration of the present disclosure is not limited to a stick vacuum cleaner and can be applied to other vacuum cleaners.
- the configuration of the present disclosure can be applied to a canister type vacuum cleaner, a robot vacuum cleaner, etc., which are types of vacuum cleaners other than a stick vacuum cleaner.
- FIG. 1 is a perspective view illustrating a cleaner according to one embodiment of the present disclosure.
- FIG. 2 is a perspective view illustrating a suction head of the cleaner of FIG. 1.
- FIG. 3 is a drawing illustrating a drum brush mounted on the cleaner according to one embodiment.
- FIG. 4 is an exploded view illustrating the suction head of FIG. 2 in an exploded form.
- FIG. 5 is a drawing illustrating a method of combining a drum brush and a housing.
- FIG. 6 is a bottom view illustrating a suction head having a drum brush mounted thereon.
- the cleaner (1) may include a cleaner body (10), a suction head (100) connected to the cleaner body (10) by a connecting pipe (20), and a drum brush (1000) rotatably coupled to the suction head (100).
- the vacuum cleaner body (10) may include a dust collector (40) detachably coupled to the vacuum cleaner body (10) and a suction motor (not shown) configured to generate suction force.
- the suction motor may be placed inside the motor housing.
- the dust collector (40) may be arranged upstream of the air flow from the suction motor to separate and store dust or foreign substances contained in the air flowing in through the inlet (43).
- the dust collector (40) may include a dust separation device (not shown) configured to separate dust or foreign substances contained in the air flowing in through the inlet (101a, see FIG. 5) of the suction head (100), and a dust collector (not shown) provided to store dust or foreign substances separated by the dust separation device.
- the dust collector (40) can be detachably connected to the cleaner body (10).
- the dust collector (40) can include a button, and the button can be formed to allow the dust collector (40) to be separated from the cleaner body (10) or connected to the cleaner body (10).
- the vacuum cleaner body (10) may include a handle (11) so that a user can hold and operate the vacuum cleaner. The user can hold the handle (11) and move the vacuum cleaner in the forward and backward directions.
- the vacuum cleaner body (10) may include a control unit (12).
- the user can turn the vacuum cleaner on/off or adjust the suction strength by operating the power button, etc. provided on the control unit (12).
- the vacuum cleaner body (10) may include a battery (13).
- the battery (13) may be detachably connected to the vacuum cleaner body (10). When the battery (13) is discharged, the operating time of the vacuum cleaner may be increased by replacing it with a pre-charged battery (13). Alternatively, the battery (13) may be provided integrally with the vacuum cleaner body (10).
- the cleaner body (10) may include a filter housing (15).
- the filter housing (15) is provided in an approximately donut shape and may accommodate a filter (not shown) therein.
- a filter (not shown) therein.
- the filter (not shown) may filter ultrafine dust and the like that are not filtered out by the dust separation device of the dust collector (40).
- the filter housing (15) may include a plurality of holes (16) so that air passing through the filter is discharged to the outside of the cleaner.
- the cleaner body (10) may include a connecting pipe joint (14).
- the connecting pipe joint (14) may be provided to separate the connecting pipe (20) from the cleaner body (10) or to connect it to the cleaner body (10).
- the connecting pipe (20) may include a pipe or flexible hose having a predetermined rigidity.
- the connecting pipe (20) may transmit the suction force generated by the suction motor of the cleaner body (10) to the suction head (100) and guide the air and foreign substances sucked through the suction head (100) to the cleaner body (10).
- the suction head (100) can be connected to the cleaner body (10) by a connecting pipe (20).
- the suction head (100) can be rotatably coupled to the connecting pipe (20).
- a drum brush (1000) may be rotatably coupled to the suction head (100).
- the drum brush (1000) may be provided to contact a surface to be cleaned and suck foreign substances such as dust existing on the surface to be cleaned into the inside of the suction head (100).
- foreign substances on the surface to be cleaned may be sucked into the inside of the suction head (100) through the suction port (101a) of the suction head (100).
- the foreign substances sucked into the inside of the suction head (100) may be sucked into the connection pipe (20) by the suction motor of the cleaner body (10) through the connection port (101b) that connects the connection pipe (20) and the suction head (100) and may move toward the cleaner body (10).
- the suction head (100) may include a housing (102) in which a suction port (101a) is formed, and a suction connector (70) connecting the housing (102) and a connecting pipe (20).
- a drum brush (1000) that is rotatably provided on the suction head (100) may be arranged on the inside of the suction head (100) so that foreign substances are effectively sucked into the interior of the housing (102) through the suction port (101a).
- the housing (102) of the suction head (100) can be formed by assembling an upper housing (110), a lower housing (120), a side housing (130), and a drum removal cover (140).
- the side housing (130) may be formed in a state of being coupled to the left side of the lower housing (120).
- the drum detachment cover (140) may be arranged to be coupled to the right side of the drum brush (1000) and placed on the right side of the lower housing (120).
- this is not limited thereto, and the left and right arrangements of the side housing (130) and the drum detachment cover (140) may be arranged to be swapped.
- the drum detachable cover (140) may be provided so that the drum body (1100) can be rotatably coupled. As described above, the drum detachable cover (140) may be placed on the right side of the lower housing (120), but is not limited thereto.
- the drum detachable cover (140) may include a fixing portion (141) and a cover switch (142) provided so that the drum brush (1000) can be coupled to the housing (102). Since the drum detachable cover (140) includes the fixing portion (141) and the cover switch (142), the drum brush (1000) can be detachably coupled to one side of the housing (102). Furthermore, the drum detachable cover (140) may also be detachably coupled to the upper housing (110) and the lower housing (120) together with the drum brush (1000) by the fixing portion (141) and the cover switch (142).
- the fixed portion (141) may be formed to protrude from the drum detachment cover (140) toward the upper housing (110) or the lower housing (120).
- the fixed portion (141) may be provided with a fixed hook (not shown in the drawing) and a cover switch (142) configured to press the fixed hook.
- the upper housing (110) may be provided with an insertion groove (110a) into which the fixed portion (141) is inserted and which is formed in a shape corresponding to the fixed portion (141) so that the fixed portion (141) can be inserted.
- a fastening groove (110b) may be formed in the insertion groove (110a) of the upper housing (110) so that the fixed hook of the fixed portion (141) is fixed.
- the drum detachable cover (140) can be provided so as to be easily detachable from the upper housing (110) and the lower housing (120), and the drum brush (1000) can also be easily detachably mounted on the housing (102) of the suction head (100).
- the above description of the configuration of the drum detachable cover (140) is only an example for allowing the drum brush (1000) to be detachably coupled to the housing (102), and the configuration of the drum detachable cover (140) is not limited to the above description.
- the drum detachable cover (140) can be detachably mounted on the upper housing (110) and the lower housing (120) in another manner.
- the drum brush (1000) can be provided so as to be detachable from the housing (102) or mounted on the housing (102) while the drum detachable cover (140) is coupled to the upper housing (110) and the lower housing (120).
- the drum brush (1000) may include a drive cap (1500) and a shaft cap (1400) arranged at both ends of the drum brush (1000).
- the drive cap (1500) may be arranged at one end of the side housing (130) side of the drum brush (1000)
- the shaft cap (1400) may be arranged at the other end of the drum brush (1000) at the drum detachment cover (140) side.
- the drive cap (1500) covers one end of the drum brush (1000) and may be positioned to be supported by one end of the drum brush (1000) and the inner surface of the drum body (1100).
- the drive cap (1500) may be arranged to be fixed to one end of the drum body (1100) facing one side of the side housing (130). That is, the drive cap (1500) may be arranged to be fixed to one end of the drum body (1100) facing the side housing (130).
- the drive cap (1500) may be formed to include a cylindrical shape including a hollow portion so as to be inserted into the drum body (1100) and supported on the inner surface of the drum body (1100).
- the shaft cap (1400) covers one end of the drum brush (1000) opposite to the one end on which the drive cap (1500) is arranged, and can be arranged to be supported by the other end of the drum brush (1000) and the inner surface of the drum body (1100).
- the shaft cap (1400) may be formed to include a cylindrical shape including a hollow portion so as to be inserted into the drum body (1100) and supported on the inner surface of the drum body (1100).
- the shaft cap (1400) may have a shaft hole (1400a) formed so that a portion of the core shaft (1200) may penetrate therethrough.
- the core shaft (1200) penetrating the shaft hole (1400a) may be inserted into a fixing groove (140a) formed on the inner surface of the drum detachable cover (140).
- the fixed end (1211) of the core shaft (1200) may be provided in an approximately cross shape.
- the fixed groove (140a) may also be provided in an approximately cross shape.
- the core shaft (1200) may be provided by protruding from a part of the housing (102), in this case, the drum removal cover (140). That is, the core shaft (1200) may be formed integrally with the housing (102). In this case, the drum body (1100) may be mounted on the core shaft (1200) protruding from the housing (102).
- the core shaft (1200) may be made of a metal material, or one end of the core shaft (1200), that is, the fixed end (1211), may be made of a metal material.
- a part of the housing (102), that is, the drum removal cover (140), may include a magnet to fix the core shaft (1200).
- the core shaft (1200) may be fixed by magnetic force.
- the method by which the core shaft (1200) is fixed to the housing (102) is not necessarily limited to this and may be performed in various ways.
- the suction head (100) may include a driving device (170).
- the driving device (170) may be located inside the housing (102) and may include a motor (171) that generates rotational force.
- the driving device (170) may include a motor bearing (173) located on one side of the drum brush (1000) and coupled with a rotational shaft.
- the driving device (170) may include a pulley (172) that is coupled to the motor bearing (173) on one side and the rotational shaft of the motor (171) on the other side to transmit power of the motor (171) to the drum brush (1000).
- the present invention is not limited thereto, and the motor (171) may be directly coupled to the driving cap (1500) to transmit rotational force.
- the motor bearing (173) can be coupled with the drive cap (1500) of the drum body (1100).
- the motor bearing (173) can include a coupling part (174) provided on the inside so as to be coupled with the drive cap (1500).
- the drive cap (1500) coupled with the motor bearing (173) by the coupling part (174) can rotate together. Since the drive cap (1500) is coupled with the drum body (1100), the drum body (1100) can also rotate together.
- the brush member (1700) protruding or coupled to the drum body (1100) can also rotate together with the drum body (1100) and brush off foreign substances from the surface to be cleaned.
- the core shaft (1200) located inside the drum body (1100) can be fixed by having the fixed end (1211) inserted into the fixed groove (140a) formed inside the drum detachable cover (140). Accordingly, the core shaft (1200) can be maintained fixed despite the rotation of the drum body (1100).
- a vacuum cleaner (1) equipped with a suction head (100), such as a stick vacuum cleaner, has been described, but the drum brush (1000) of the present disclosure can also be mounted on a robot vacuum cleaner (2) without a suction head (100), such as a robot vacuum cleaner (2).
- the robot cleaner (2) may include a cleaner body (200) that can move on a surface to be cleaned, and a housing (201) that forms the exterior of the cleaner body (200).
- the housing (201) may include a suction port (201a) to suck up foreign substances such as dust from the surface to be cleaned.
- the suction port (201a) may be provided on the bottom surface of the cleaner body (200).
- a drum brush (1000) may be positioned in the suction port (201a).
- the drum brush (1000) may be rotatably mounted on the suction port (201a) as in the cleaner (1) described above.
- Fig. 7 is a drawing illustrating a drum brush according to another embodiment.
- Fig. 8 is an exploded view illustrating a part of the drum brush of Fig. 7 in an exploded manner.
- the drum brush (1000) may include a drum body (1100) having a hollow portion (1100a).
- a hollow portion (1100a) is formed inside the drum body (1100), and a core shaft (1200) that serves as a rotational axis of the drum body (1100) may be arranged therein.
- the drum brush (1000) may include a brush member (1700) protruding from the drum body (1100). At least one brush member (1700) may be provided.
- the brush member (1700) may be configured in multiple pieces. In the present invention, the brush members (1700) are described as being arranged in opposite directions, but the brush members (1700) may be provided in one piece or in three or more pieces. In addition, even when the brush members (1700) are formed in three or more pieces, they may not be arranged spaced apart from each other at an angle of 120 degrees, and may be positioned within a specific angle.
- the brush member (1700) may be configured by gathering a plurality of bristles having a predetermined stiffness so that foreign substances (H) can be scattered by striking or sweeping the surface to be cleaned.
- the brush member (1700) may be roughly a broom or a brush.
- the brush member (1700) may be formed of a nylon or silicone material. It is not limited thereto, and may include a material having a plurality of bristles, such as a fluffy material.
- the drum body (1100) may include a coupling portion (1130) provided to couple the brush member (1700).
- the coupling portion (1130) may protrude from the outer surface of the drum body (1100) and extend along the longitudinal direction of the drum body (1100).
- the coupling portion (1130) may be provided in a number corresponding to the number of brush members (1700).
- the core shaft (1200) can be fixed to the housing (102) and function as a rotational shaft. That is, the drum body (1100) can rotate around the core shaft (1200) by the rotational force generated by the motor (171) of the driving device (170).
- the core shaft (1200) may include a first insertion portion (1210) formed at one end and a second insertion portion (1220) formed at the other end.
- the first insertion portion (1210) may include a fixed end (1211) provided so as to be inserted into a fixed groove (140a) provided on the inside of the drum detachment cover (140).
- the first insertion portion (1210) may be inserted into a first bearing (1610) located on the inside of the shaft cap (1400).
- the first bearing (1610) may support the core shaft (1200) through the first insertion portion (1210).
- the first insertion portion (1210) penetrating the first bearing (1610) can be exposed to the other side of the drum brush (1000) through a shaft hole (1400a) formed in the shaft cap (1400).
- the fixed end (1211) exposed to the other side of the drum brush (1000) can be inserted into the fixed groove (140a) and fixed to the housing (102).
- the second insertion portion (1220) can be inserted into the second bearing (1620) located inside the drive cap (1500).
- the second bearing (1620) can support the core shaft (1200) through the second insertion portion (1220).
- the driving device (170) can rotate the drum body (1100) relative to the core shaft (1200). That is, the drum body (1100) can rotate relative to the core shaft (1200) by the first bearing (1610) and the second bearing (1620).
- the drum body (1100) may be provided to be rotatable by a driving device (170, see FIG. 4). As the drum body (1100) rotates, the brush member (1700) can scatter foreign substances (H) on the surface to be cleaned and suck the foreign substances (H) into the suction head (100).
- the drum body (1100) can receive rotational power from a driving source such as a driving device (170) so as to be rotatable with respect to the suction head (100).
- the drum body (1100) can be provided so that the drum brush (1000) can be rotatable with respect to the surface to be cleaned as the driving cap (1500) coupled to one side of the drum body (1100) rotates.
- the drum brush (1000) is a rotating body that rotates based on the axis (A), so it is preferable that it has an approximately cylindrical shape, but is not limited thereto.
- the drum brush (1000) may be provided as a polygonal pillar that is provided to be close to a cylindrical shape.
- the drum brush (1000) may have a hexagonal cross-section when cut in a direction perpendicular to the axis (A).
- the cross-section of the drum (1000) may have an elliptical shape.
- the brush member (1700) or the coupling portion (1130), etc. may be provided on a plane, so that manufacturing may be easy.
- the more angles the cross-section of the drum (1000) has the more similar it may be to the cylindrical shape illustrated, so that the shape may be changed as needed.
- the diameter of the drum body (1100) described in this specification means the diameter when the drum body (1100) has a shape close to a cylinder when rotating, even when the drum body (1100) is formed in a polygonal prism shape. Accordingly, even when the drum body (1100) has a polygonal prism shape rather than a substantially cylindrical shape, the expression “diameter of the drum body (1100)” does not lose its meaning.
- the drum body (1100) may be formed in at least a part of a cylindrical shape. Since the drum body (1100) is a rotating body, it may be formed symmetrically around an axis (A).
- the drive cap (1500) coupled to one side of the drum body (1100) and the shaft cap (1400) coupled to the other side may both be positioned on the axis (A).
- the drum body (1100) may include a tapered portion (1110) whose diameter decreases from both ends in the direction of the axis (A) toward the center, and a collecting portion (1120) positioned between the tapered portions (1110).
- the tapered portion (1110) may be provided in an approximately truncated cone shape.
- the collecting portion (1120) may be formed in a cylindrical shape having the same diameter as the diameter of a portion near the center of the tapered portion (1110). That is, the collecting portion (1120) may be provided to have a constant diameter.
- the present invention is not limited thereto, and the collecting portion (1120) may be formed in an approximately bent shape at a location where the tapered portions (1110) on both sides meet.
- the tapered portion (1110) can be formed so that the cross-sectional area decreases as it approaches the collecting portion (1120).
- the tapered portion (1110) may include a first tapered portion (1111) located on one side of the drum body (1100) and a second tapered portion (1112) located on the other side.
- the first tapered portion (1111) and the second tapered portion (1112) may be provided symmetrically to each other.
- the collecting portion (1120) may be located between the first tapered portion (1111) and the second tapered portion (1112).
- the first tapered portion (1111) and the collecting portion (1120), and the second tapered portion (1112) and the collecting portion (1120) may be formed continuously without a step.
- the present invention is not limited thereto, and the collecting portion (1120) may be formed with a step from the first tapered portion (1111) and the second tapered portion (1112).
- the collection section (1120) is described as being provided as one between the tapered sections (1110) located on both sides, but is not limited thereto.
- the collection section (1120) may be formed in two or more pieces near the center of the drum body (1100). When the collection section (1120) is formed in two or more pieces, it is preferable that they are formed symmetrically with respect to the center. Even if the collection section (1120) is formed in two or more pieces, it is preferable that they are positioned close to the communication port (101b).
- the diameter may have a section in which it increases again as it moves from the collecting section (1120) toward the center of the drum body (1100). That is, the diameter may decrease from the tapered section (1110) toward the collecting section (1120), and then increase again as it moves from the collecting section (1120) toward the center of the drum body (1100).
- the drum body (1100) When the drum body (1100) is viewed in a direction perpendicular to the axis (A) of the drum (1000), it may have an approximately W-shape.
- the drum body (2100) may also be provided in an approximately truncated cone shape.
- the drum body (1100) can be formed in approximately an hourglass shape.
- long foreign substances (H) such as hair, are sucked into a part, such as the collection portion (1120), which has a small diameter, when they are wound around a high-speed rotating body, such as the drum (1000). Accordingly, while using the cleaner (1), foreign substances (H) wound around the drum brush (1000) gradually move to the collection portion (1120).
- the drum body (1100) may include an opening (1120a) formed in the collecting portion (1120). Foreign matter (H) may be introduced into the hollow portion (1100a) through the opening (1120a). The foreign matter (H) must be introduced to a certain level into the hollow portion (1100a) to be able to contact the cutting member (1300). Therefore, the foreign matter (H) needs to be strongly wrapped around the collecting portion (1120).
- the drum body (1100) may be composed of a metal material or may be composed of a plastic material.
- the collection part (1120) of the drum body (1100) may include a rubber material.
- the collection part (1120) of the drum body (1100) made of a metal or plastic material may be covered with a rubber material.
- Foreign substances (H) such as hair that have moved, may be wrapped more strongly around the collection part (1120) made of a rubber material.
- the drive cap (1500) may include a cylindrical drive cap body (1510) that can be inserted into the interior of the drum body (1100).
- the drive cap body (1510) may have a space provided on the inner surface thereof into which a second bearing (1620) can be inserted.
- a core shaft (1200) disposed inside the drum body (1100) may be inserted into the center of the second bearing (1620).
- a cap fixing protrusion (1520) may be formed on the outer surface of the drive cap body (1510).
- the cap fixing protrusions (1520) may be provided in plurality. Each of the plurality of cap fixing protrusions (1520) may be arranged at a predetermined interval on the outer surface of the drive cap body (1510).
- the drive cap (1500) may include a drive cap head (1530) that covers one side of the drum body (1100).
- the drive cap head (1530) may be provided in a shape that protrudes approximately in a cross direction.
- a groove may be formed approximately in a cross direction on one side of the drum body (1100) corresponding to the drive cap head (1530).
- the drive cap head (1530) may be coupled to one end of the drum body (1100) to cover the hollow portion (1100a) of the drum body (1100).
- the shaft cap (1400) may include a cylindrical shaft cap body (1410) that can be inserted into the inside of the drum body (1100).
- a cap fixing protrusion (not shown) may be formed on an outer surface of the shaft cap body (1410).
- the cap fixing protrusions (not shown) may be provided in plurality. Each of the cap fixing protrusions (not shown) may be arranged at a predetermined interval on the outer surface of the shaft cap (1400).
- the shaft cap (1400) may include a shaft cap head (1420) that covers the other side of the drum body (1100).
- the shaft cap head (1420) may be provided in a shape that protrudes approximately in a cross shape.
- a groove may be formed in an approximately cross direction on the other side of the drum body (1100) corresponding to the shaft cap head (1430).
- the shaft cap head (1430) may be coupled to the other end of the drum body (1100) to cover the hollow (1100a) of the drum body (1100).
- a shaft cap (1400) may be formed with a shaft hole (1400a) that penetrates the shaft cap body (1410) and the shaft cap head (1420). A portion of the core shaft (1200) may be exposed to the outside of the drum body (1100) through the shaft hole (1400a). More specifically, a fixed end (1211) of the core shaft (1200) may be exposed to the outside of the drum body (1100) and fixed to the housing (102).
- a cap fixing groove may be formed on the inner surface of the drum body (1100) to correspond to the cap fixing protrusion (152) of the drive cap (1500) and the cap fixing protrusion (162) of the shaft cap (1400).
- the cap fixing grooves may be formed at each end of the drum body (1100) where the drive cap (1500) and the shaft cap (1400) are placed.
- the cap fixing protrusions (1520, 1620) may each be inserted into the cap fixing groove (1140), and the drive cap (1500) and the shaft cap (1400) may each be fixed to the inner surface of the drum body (1100).
- drum brush (1000) including the drive cap (1500) and the shaft cap (1400) is only an example of allowing the drum brush (1000) to be rotatably coupled to the suction head (100), and the configuration of the drum brush (1000) is not limited thereto.
- the drive cap (1500) and the shaft cap (1400) may be coupled to the drum body (1100) differently from the above-described, or the drum brush (1000) may not include the drive cap (1500) or the shaft cap (1400).
- the drum brush (1000) may include a cutting member (1300) provided on a core shaft (1200).
- the cutting member (1300) may be exposed through an opening (1120a) formed in a collecting portion (1120) to cut foreign substances (H).
- the cutting member (1300) may be formed integrally with the core shaft (1200), or may be combined as a separate component. In this drawing, the cutting member (1300) is described as being combined as a separate component with the core shaft (1200).
- the cutting member (1300) may be formed at a position corresponding to the opening (1120a) of the drum body (1100). In the present invention, since the collecting member (1120) is provided in the center of the drum body (1100), the cutting member (1300) may also be positioned in the center of the core shaft (1200). However, in the case of the drum body (2000) illustrated in FIG. 17, since the collecting member (2120) is positioned at the end of the drum body (2000), the cutting member (1300) may also be positioned at the end of the core shaft (1200).
- the cutting member (1300) may include a metal material.
- the cutting member (1300) may include a sharp blade for cutting foreign substances (H) such as hair.
- the cutting member (1300) may be a metal material with a diamond coating.
- the cutting member (1300) may be formed of a sandpaper material.
- the blade of the cutting member (1300) may extend along the axis (A) direction of the drum body (1100).
- the cutting member (1300) can also be fixed. Accordingly, as the drum body (1100) rotates, foreign substances (H) moved to the collection part (1120) can be cut by the cutting member (1300) exposed through the opening (1120a). That is, simply by operating the cleaner (1), foreign substances (H) wrapped around the drum brush (1000) can be moved to the collection part (1120) and cut by the cutting member (1300).
- the drum body (1100) include a plurality of protective guides (1122) formed on the opening (1120a).
- the plurality of protective guides (1122) may be arranged to cover at least a portion of the opening (1120a).
- the plurality of protective guides (1122) should cover only a portion of the opening (1120a).
- a plurality of protection guides (1122) can be formed along the circumferential direction of the drum body (1100). That is, they can be formed along the rotational direction (R) of the drum body (1100). Approximately a plurality of slits can be formed by the plurality of protection guides (1122) formed along the circumferential direction of the drum body (1100).
- the foreign matter (H) can flow in between the plurality of protection guides (1122), and the introduced foreign matters (H) can be cut by coming into contact with the cutting member (1300).
- the core shaft (1200) may include a catch plate (1230) provided to restrict the cutting member (1300) from moving along the longitudinal direction of the core shaft (1200).
- the catch plate (1230) can be provided at an appropriate position so that the cutting member (1300) is positioned corresponding to the opening (1120a).
- the catch plate (1230) is illustrated as having an approximately circular shape, but any configuration capable of restricting the movement of the cutting member (1300 ⁇ ) is sufficient.
- the catch plate (1230) can be provided in various shapes such as an approximately bar shape, a square shape, etc.
- the cutting member (1300) may include a protrusion (1330, see FIG. 12) to prevent rotation on the core shaft (1200). A configuration for preventing rotation of the cutting member (1300) will be described later.
- Fig. 9 is a drawing illustrating a process in which foreign matter (H) wrapped around the drum brush of Fig. 7 moves to a collecting section according to the rotation of the drum body.
- Fig. 10 is a drawing illustrating a state in which foreign matter (H) is wrapped around the collecting section of the drum brush of Fig. 7.
- Fig. 11 is an enlarged drawing of the collecting section of Fig. 10.
- Fig. 12 is a drawing illustrating a state in which foreign matter (H) is cut by a cutting member.
- the drum brush (1000) mounted on the suction port (101a) of the suction head (100) can rotate by the operation of the cleaner (1). More specifically, among the components of the drum brush (1000), the core shaft (1200) and the cutting member (1300) are fixed, and the drum body (1100) can rotate.
- the brush member (1700) protruding from the drum body (1100) is composed of a plurality of bristles, so that long foreign substances (H) such as hair can easily get caught. These foreign substances (H) are difficult to easily come out unless the user removes them separately after cleaning, and if left unattended, they can cause a decline in the performance of the vacuum cleaner (1) and a malfunction. Therefore, it is necessary to remove foreign substances (H) caught in the brush member (1700).
- foreign substances (H) may be wound around the drum brush (1000).
- the drum body (1100) may be designed so that the diameter decreases as it moves toward the collection unit (1120).
- foreign substances (H) wound around the high-speed rotating body have the characteristic of moving to a place with a small diameter. Therefore, the foreign substances (H) may be moved to the collection unit (1120) as the drum body (1100) rotates.
- Foreign substances (H) moved to the collection unit (1120) can flow into an opening (1120a) formed in the collection unit (1120).
- Foreign substances (H) flowing into the opening (1120a) can be positioned close to the cutting member (1300) to the extent of coming into contact with the cutting member (1300).
- the drum body (1100) can be rotated by the driving device (170), and the core shaft (1200) and the cutting member (1300) can be fixed. That is, the driving device (170) can rotate the drum body (1100) relative to the core shaft (1200) and the cutting member (1300). In this way, the foreign material (H) moves relative to the cutting member (1300) and can be cut while coming into contact with the cutting member (1300).
- the cut foreign substances (H) can no longer be wrapped around the drum brush (1000) and can fall onto the cleaning surface. Since the foreign substances (H) are cut, they are not long enough to be wrapped around the drum brush (1000) again and can be sucked directly into the dust collector (40) through the suction port (101a) and the communication port (101b).
- FIGS. 13 to 16 are cross-sectional views of a cutting member and a drum brush equipped with the cutting member according to one embodiment.
- the cutting member (1300) may be provided in various forms, and the common configuration of each cutting member (1300) will be described first, and the other configurations will be described respectively.
- each cutting member (1301, 1302, 1303) may include a body portion (1311, 1312, 1313) for coupling to a core shaft (1200).
- the cutting members (1301, 1302, 1303) may include a cutting portion (1321, 1322, 1323) that protrudes radially from the body portion (1311, 1312, 1313).
- the body parts (1311, 1312, 1313) are depicted as having a roughly cylindrical shape, but are not limited thereto. If the core shaft (1200) is formed in a roughly polygonal shape, such as a square prism or a triangular prism, the body parts (1311, 1312, 1313) may also have a polygonal cross-section, such as a square or triangle.
- the core shaft (1200) includes a recessed portion (1200a) to prevent rotation of the cutting member (1301, 1302, 1303), and the cutting member (1301, 1302, 1303) may include a protrusion (1331, 1332, 1333) provided on the inner surface to correspond to the recessed portion (1200a).
- the core shaft (1200) is configured to be fixed to the housing (102, see FIG. 4), but the cutting member (1300) can be rotated by an external force, such as a force due to the rotation of the drum body (1100). Therefore, the rotation of the cutting member (1300) can be prevented by the protruding or recessed structure of the core shaft (1200) and the cutting member (1300).
- a protrusion may be provided on the core shaft (1200) and a recess may be provided on the cutting member (1301, 1302, 1303).
- the inner surface of the core shaft (1200) and the cutting members (1301, 1302, 1303) are depicted as having a repetitive structure of sinking and protrusion, respectively, and having sinking and protrusion portions. In this way, it is sufficient that the core shaft (1200) and the cutting members (1301, 1302, 1303) each have a structure of sinking and protrusion, and that each structure is provided to correspond to each other.
- the core shaft (1200) and the cutting member (1301, 1302, 1303) do not necessarily have to have such a protruding or sunken structure, and the inner surface of the cutting member (1301, 1302, 1303) may be formed of a rubber material having high frictional force or an adhesive material may be applied to prevent rotation of the cutting member (1301, 1302, 1303).
- the cutting members (1301, 1302, 1303) illustrated in FIGS. 13 to 15 may include cutting portions (1321, 1322, 1323) of different shapes.
- the cutting portions (1321, 1322, 1323) may be provided in a radial shape, a serration shape, a helical shape, a grinder shape, etc.
- each cutting member (1301, 1302, 1303) are sufficiently protruding to be able to cut the wound foreign substance (H), and their shapes are not limited.
- the cutting members (1301, 1302, 1303) of the present invention are merely examples, and any shape may be provided as long as the technical features of the present disclosure can be demonstrated.
- the cutting member (1304) may include a body portion (1314) having a rectangular shape having long sides and short sides.
- the cutting member (1304) may include cutting portions (1324) provided on both sides of the body portion (1314).
- the cutting member (1304) can be positioned to penetrate the core shaft (1200).
- the cutting member (1304) can be inserted along the direction in which the cutting portion (1324) is formed. It can penetrate through the center of the cutting member (1304), that is, pass through the axis (A) of the drum brush (1000). It can be inserted into the core shaft (1200) along the short side direction of the cutting member (1304). Accordingly, the body portion (1314) of the cutting member (1304) can be positioned on the inner side of the core shaft (1200), and the cutting portion (1324) can be positioned on the outer side of the core shaft (1200).
- the core shaft (1200) may include a slot (1201a) and a fixing hole (not shown) for limiting the position of the cutting member (1304). That is, the cutting member (1304) may be fitted into the slot (1201a).
- the cutting member (1304) may include a fixing groove (1314a) provided on the short side of the body portion (1314).
- a fixing screw (not shown) may be inserted into the fixing hole (not shown) of the core shaft (1200) to fasten the core shaft (1200) and the cutting member (1304).
- the fixing groove (1314a) of the cutting member (1304) may be positioned to correspond to the fixing hole (not shown).
- the cutting member (1304) can be exposed through an opening (1120a) and cut a wound foreign substance (H).
- Fig. 17 is a drawing illustrating a drum brush according to one embodiment.
- Fig. 18 is a bottom view illustrating a suction head equipped with the drum brush of Fig. 17.
- Fig. 19 is a drawing illustrating a process in which foreign substances wrapped around the drum brush of Fig. 17 move to a collecting section according to the rotation of the drum body.
- Fig. 20 is an enlarged drawing illustrating a collecting section in the drum brush of Fig. 17.
- the drum brush (2000) may include a collection member (2120) positioned on one side of the drum body (2100).
- the collection member (2120) may also be positioned on the other side of the drum body (2100).
- the collection member (2120) may be provided to move foreign substances.
- the drum body (2100) may have a shape in which the diameter decreases toward one side since the collecting part (2120) is located on one side. That is, the drum body (2100) may have an approximately truncated cone shape.
- the collecting part (2120) is illustrated as being provided on the driving cap (1500) side. However, the invention is not limited thereto, and the collecting part (2120) may be located on the shaft cap (1400) side.
- An opening (2120a) may be formed in the collection unit (2120).
- the opening (2120a) may be used to wrap foreign substances (H) that have moved to the collection unit (2120).
- a plurality of protection guides (2122) may be provided in the opening (2120a). However, if the lengths of the collection unit (2120) and the opening (2120a) are short, one or more protection guides (2122) may be provided instead of a plurality.
- the drum brush (2000) may include a tapered portion (2110) whose diameter of the drum body (2100) decreases as it moves toward the collecting portion (2120).
- the tapered portion (2110) may have a shape in which the diameter gradually decreases along the axial (A) direction of the drum body (2100). That is, the tapered portion (2110) may occupy most of the length of the drum body (2100) in the axial (A) direction.
- the tapered portion (2110) may occupy only a portion of the drum body (2100).
- a cylindrical portion having a constant diameter may be provided on the opposite side of the collecting portion (2120) in the drum body (2100), and a tapered portion (2110) having a diameter that decreases from the cylindrical portion may be provided.
- the collection members (2120) may be provided on both sides.
- the cutting members (1300) may also be provided in two positions corresponding to the openings (2120a) formed in the collection members (2120). That is, the diameter of the center portion in the axial direction of the drum body (2100) may be the largest, and the diameter may be provided in a shape in which it decreases toward the collection members (2120) provided on both sides.
- the tapered portion (2110) may be provided in a state in which the tapered portions (1110) of FIG. 7 are provided in opposite directions.
- foreign matter (H) wrapped around the drum body (2100) can move to both sides of the drum body (2100) and be cut by the cutting member (1300) exposed to the opening (2120a) of the collection unit (2120). Similarly, the cut foreign matter (H) can be sucked in by the suction force of the cleaner (1) and moved to the dust collector (40).
- the drum brush (2000) illustrated in FIGS. 17 to 20 may also include the cutting members (1301, 1302, 1303, 1304) illustrated in FIGS. 13 to 16. In addition, it may be mounted on a robot cleaner (2) illustrated in FIG. 3 as well as a cleaner (1) illustrated in FIG. 1.
- FIG. 21 is a drawing illustrating a drum brush according to one embodiment.
- the drum brush (3000) may be provided with a drive cap (3500) larger than the diameter of the collection unit (2120). Foreign matter (H) moved to the collection unit (2120) may pass the collection unit (2120) by the rotation of the drum body (2100).
- the collection unit (2120) may be provided in a shape with a decreasing diameter rather than a constant diameter, or may have various shapes, so that the foreign matter (H) may be detached from the drum body (2100).
- a drive cap (3500) having a diameter larger than that of the collector (2120) may be arranged so as to block one side of the collector (2120).
- the collector (2120) may be positioned on the drive cap (3500) side of the drum body (2100), but may also be positioned on the shaft cap (1400) side.
- the diameter of the shaft cap (1400) may be provided to be larger than that of the collector (1400).
- the shaft cap (1400) or the drive cap (3500) may be provided to have a diameter larger than that of the collector (2120).
- the drum brush (3000) illustrated in Fig. 21 may also include the cutting members (1301, 1302, 1303, 1304) illustrated in Figs. 13 to 16. In addition, it may be mounted on the robot cleaner (2) illustrated in Fig. 3 as well as the cleaner (1) illustrated in Fig. 1.
- a cleaner includes a housing (102, 201) having a suction port (101a, 201a) configured to suck in foreign substances, a motor configured to generate rotational force, and a drum brush (1000, 2000, 3000) arranged inside the housing and configured to rotate by the rotational force of the motor.
- the drum brush may include a drum body, a collecting portion having an opening, a tapered portion configured to have a diameter that decreases toward the collecting portion along an axial direction of the drum body so that when the drum body rotates, sucked foreign substances move toward the collecting portion and then through the opening, a drum body including a hollow portion, a core shaft arranged in the hollow portion, and a cutting member provided on the core shaft at a position corresponding to the opening inside the hollow portion and configured to cut foreign substances moved through the opening.
- the cleaner can be easily maintained.
- foreign substances entangled in a drum can be easily cut off.
- foreign substances can be automatically cut off according to the rotation of a drum brush.
- foreign substances entangled in a drum brush can be sucked into a dust collector.
- the core shaft may be fixed to the housing to prevent rotation of the core shaft when the drum brush rotates. According to the present disclosure, foreign substances can be cut more efficiently by rotating only the drum body.
- the motor may be coupled to a first side of the drum brush, and the core shaft may be fixed to the housing at a second side of the drum brush opposite to the first side. According to the present disclosure, an efficient arrangement may be possible to simultaneously rotate the drum body and fix the core shaft.
- the above drum body may further include a plurality of protective guides (1122, 2122) arranged to cover at least a portion of the opening. According to the present disclosure, injury caused by a cutting member can be prevented.
- the above plurality of protection guides may be formed along the circumferential direction of the drum body so that when the drum brush rotates, the sucked foreign matter is wound around the drum brush and moves through the openings between the plurality of protection guides. According to the present disclosure, in addition to preventing injury, a space in which foreign matter can be wound can be secured.
- the collecting portion of the above drum body can be positioned in the center along the axial direction of the drum body. According to the present disclosure, by positioning the collecting portion close to the ventilation opening, the cut foreign matter can be sucked in most efficiently.
- the above tapered portion may include a first tapered portion (1111) located on one side of the collecting portion, and a second tapered portion (1112) located on the other side of the collecting portion.
- the above-mentioned collecting section may include a section extending along the axial direction of the drum body. According to the present disclosure, the foreign matter receiving capacity of the collecting section can be secured.
- the above-mentioned collecting unit may be located at one end of the drum body.
- the drum brush can be miniaturized and used in a small vacuum cleaner. According to the present disclosure, it can be easy to remove foreign substances that have not been cut off.
- the drum brush may further include a bearing (1610, 1620) that supports the core shaft so that the drum body rotates relative to the core shaft when the drum brush rotates.
- a bearing (1610, 1620) that supports the core shaft so that the drum body rotates relative to the core shaft when the drum brush rotates.
- the above cutting member can pass through the center of the core shaft. According to the present disclosure, space occupied by the cutting member can be minimized, thereby enabling efficient use of space.
- the above cutting member may include a body portion coupled to the core shaft and a cutting portion protruding from the body portion.
- the cutting member may include a protrusion (1200a) corresponding to the recessed portion and extending into the recessed portion to limit rotation of the cutting member when the drum brush rotates.
- the cutting member may be positioned fixed to the core shaft without rotating despite various external forces that may act on the cutting member. According to the present disclosure, the ability to cut foreign substances may be improved.
- the above core shaft may further include a catch plate (1230) provided to limit movement of the cutting member along the longitudinal direction of the core shaft. According to the present disclosure, structural safety can be secured by limiting movement of the cutting member in the longitudinal direction.
- the collecting member of the above drum body may include a rubber material. According to the present disclosure, foreign substances can be more strongly wrapped around the collecting member and can rub more strongly against the cutting member.
- a cleaner includes a housing having a suction port configured to suck in foreign substances, a motor configured to generate rotational force, and a drum brush disposed inside the housing and configured to rotate by the rotational force.
- the drum brush may include a drum body, a collecting portion having an opening, a tapered portion having a diameter that decreases in an axial direction toward the collecting portion so that foreign substances sucked when the drum brush rotates move to the collecting portion and then move through the opening, and a drum body including a hollow portion.
- the drum brush may include a core shaft disposed in the hollow portion so as to limit rotation of the core shaft when the drum brush rotates and is fixed to the housing.
- the drum brush may include a cutting member coupled to the core shaft at a position corresponding to the opening inside the hollow portion so as to cut foreign substances moved through the hollow portion.
- a cleaner can be easily maintained.
- foreign substances entangled in a drum can be easily cut.
- foreign matter can be automatically cut off according to the rotation of the drum brush.
- foreign matter entangled in the drum brush can be sucked into a dust collector.
- the above drum body may further include a plurality of protective guides (1122, 2122) provided to cover at least a portion of the opening. According to the present disclosure, injury caused by a cutting member can be prevented.
- a driving device (170) disposed inside the housing may be further included.
- the driving device is coupled with the drum body and can rotate the drum body relative to the core shaft.
- the rotational force generated by the driving device can be transmitted only to the drum body and not to the core shaft.
- foreign substances entangled in the drum body can be efficiently cut because they rotate relative to the core shaft and the cutting member.
- a cleaner may include a housing having a suction port configured to suck in foreign substances, a motor configured to generate rotational force, and a drum brush disposed inside the housing and configured to rotate by the rotational force.
- the drum brush may include a drum body, a collecting portion having an opening disposed in a central region along an axial direction of the drum body, and a first tapered portion and a second tapered portion provided on both sides of the collecting portion so that foreign substances sucked when the drum brush rotates are moved to the collecting portion and then moved through the opening, the first tapered portion and the second tapered portion having a diameter that decreases in a direction toward the collecting portion.
- the drum brush may include a core shaft disposed in the hollow portion and fixed to the housing so as to limit rotation of the core shaft when the drum brush rotates.
- the drum brush may include a cutting member disposed inside the hollow portion and provided on the core shaft so that foreign substances moved through the opening are cut.
- the above drum body may include a plurality of protective guides (1122) formed on the opening along the rotational direction of the drum body. According to the present disclosure, injury caused by a cutting member can be prevented.
- a vacuum cleaner can be easily maintained.
- foreign matter entangled in a drum can be easily cut off.
- foreign substances can be automatically cut off according to the rotation of the drum brush.
- foreign matter entangled in a drum brush can be sucked into a dust collector.
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Abstract
Description
Claims (15)
- 이물질을 흡입하도록 마련되는 흡입구를 갖는 하우징;회전력을 발생시키도록 마련되는 모터; 및상기 하우징의 내부에 배치되고, 상기 모터의 회전력에 의해 회전하도록 마련되는 드럼 브러쉬; 를 포함하고,상기 드럼 브러쉬는,드럼 바디로서, 개구를 갖는 수집부와, 상기 드럼 바디가 회전할 때, 흡인된 이물질이 상기 수집부를 향해 이동한 후 상기 개구를 통해 이동하도록 상기 드럼 바디의 축 방향을 따라 상기 수집부를 향해 직경이 감소하도록 마련된 테이퍼부와, 중공을 포함하는 드럼 바디;상기 중공에 배치되는 코어 샤프트; 및상기 중공 내부에 상기 개구부와 대응되는 위치의 상기 코어 샤프트 상에 마련되고, 상기 개구를 통해 이동된 이물질을 절단하도록 마련되는 컷팅 부재; 를 포함하는 청소기.
- 제1항에 있어서,상기 코어 샤프트는 상기 드럼 브러쉬가 회전할 때, 상기 코어 샤프트의 회전을 방지하도록 상기 하우징에 고정되는 청소기.
- 제2항에 있어서,상기 모터는 상기 드럼 브러쉬의 제1측에 결합되고,상기 코어 샤프트는 상기 드럼 브러쉬의 상기 제1측과 반대되는 제2측에서 상기 하우징에 고정되는 청소기.
- 제1항에 있어서,상기 드럼 바디는 상기 개구의 적어도 일부를 커버하는 복수의 보호 가이드를 더 포함하는 청소기.
- 제4항에 있어서,상기 복수의 보호 가이드는 상기 드럼 브러쉬가 회전할 때, 흡인된 이물질이 상기 상기 드럼 브러쉬의 주위에 감기고, 상기 복수의 보호 가이드의 사이의 상기 개구를 통해 이동하도록 상기 드럼 바디의 원주 방향을 따라 형성되는 청소기.
- 제1항에 있어서,상기 드럼 바디의 수집부는 상기 드럼 바디의 축 방향을 따라 가운데에 위치하는 청소기.
- 제6항에 있어서,상기 테이퍼부는 상기 수집부의 제1측에 위치하는 제1테이퍼부와, 상기 수집부의 제2측에 위치하는 제2테이퍼부를 포함하는 청소기.
- 제1항에 있어서,상기 수집부는 상기 드럼 바디의 축 방향을 따라 연장되는 구간을 포함하는 청소기.
- 제1항에 있어서,상기 수집부는 상기 드럼 바디의 일단에 위치하는 청소기.
- 제1항에 있어서,상기 드럼 브러쉬는 상기 드럼 브러쉬가 회전할 때, 상기 드럼 바디가 상기 코어 샤프트에 대하여 상대 회전하도록 상기 코어 샤프트를 지지하는 베어링을 더 포함하는 청소기.
- 제1항에 있어서,상기 컷팅 부재는 상기 코어 샤프트의 중심을 지나는 청소기.
- 제1항에 있어서,상기 컷팅 부재는 상기 코어 샤프트에 결합하는 바디부와, 상기 바디부로부터 돌출되는 컷팅부를 포함하는 청소기.
- 제1항에 있어서,상기 코어 샤프트는 상기 하우징에 고정되며, 함몰부를 포함하고,상기 컷팅 부재는 상기 드럼 브러쉬가 회전할 때 상기 컷팅 부재의 회전을 제한하도록, 상기 함몰부와 대응되고, 상기 함몰부 내부로 연장되는 돌출부를 포함하는 청소기.
- 제13항에 있어서,상기 코어 샤프트는 상기 컷팅 부재가 상기 코어 샤프트의 길이 방향에 따른 이동을 제한하도록 마련되는 걸림 플레이트를 더 포함하는 청소기.
- 제1항에 있어서,상기 수집부는 고무 재질을 포함하는 청소기.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP23926535.8A EP4620366A4 (en) | 2023-03-08 | 2023-12-04 | Cleaner |
| US18/401,991 US20240298854A1 (en) | 2023-03-08 | 2024-01-02 | Cleaner |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2023-0030433 | 2023-03-08 | ||
| KR1020230030433A KR20240137258A (ko) | 2023-03-08 | 2023-03-08 | 청소기 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US18/401,991 Continuation US20240298854A1 (en) | 2023-03-08 | 2024-01-02 | Cleaner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024185963A1 true WO2024185963A1 (ko) | 2024-09-12 |
Family
ID=92674736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2023/019805 Ceased WO2024185963A1 (ko) | 2023-03-08 | 2023-12-04 | 청소기 |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20240137258A (ko) |
| WO (1) | WO2024185963A1 (ko) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140011673A (ko) * | 2012-07-18 | 2014-01-29 | 주식회사 리홈쿠첸 | 진공청소기용 브러쉬의 이물질제거장치 |
| KR20180079998A (ko) * | 2017-01-03 | 2018-07-11 | 삼성전자주식회사 | 진공 청소기 |
| KR20200017723A (ko) * | 2018-08-09 | 2020-02-19 | 삼성전자주식회사 | 진공청소기 |
| CN214342097U (zh) * | 2019-11-06 | 2021-10-08 | 尚科宁家(中国)科技有限公司 | 一种清洁装置 |
| CN114532925A (zh) * | 2022-02-25 | 2022-05-27 | 深圳市无限动力发展有限公司 | 带毛发切割功能的滚刷和扫地机 |
-
2023
- 2023-03-08 KR KR1020230030433A patent/KR20240137258A/ko active Pending
- 2023-12-04 WO PCT/KR2023/019805 patent/WO2024185963A1/ko not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140011673A (ko) * | 2012-07-18 | 2014-01-29 | 주식회사 리홈쿠첸 | 진공청소기용 브러쉬의 이물질제거장치 |
| KR20180079998A (ko) * | 2017-01-03 | 2018-07-11 | 삼성전자주식회사 | 진공 청소기 |
| KR20200017723A (ko) * | 2018-08-09 | 2020-02-19 | 삼성전자주식회사 | 진공청소기 |
| CN214342097U (zh) * | 2019-11-06 | 2021-10-08 | 尚科宁家(中国)科技有限公司 | 一种清洁装置 |
| CN114532925A (zh) * | 2022-02-25 | 2022-05-27 | 深圳市无限动力发展有限公司 | 带毛发切割功能的滚刷和扫地机 |
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|---|---|
| KR20240137258A (ko) | 2024-09-20 |
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