WO2022010029A1 - 로봇 청소기 - Google Patents
로봇 청소기 Download PDFInfo
- Publication number
- WO2022010029A1 WO2022010029A1 PCT/KR2020/011621 KR2020011621W WO2022010029A1 WO 2022010029 A1 WO2022010029 A1 WO 2022010029A1 KR 2020011621 W KR2020011621 W KR 2020011621W WO 2022010029 A1 WO2022010029 A1 WO 2022010029A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- robot cleaner
- plate
- mop
- support
- rotating plate
- 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
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- 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
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4063—Driving means; Transmission means therefor
- A47L11/4069—Driving or transmission means for the cleaning tools
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- 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
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4036—Parts or details of the surface treating tools
- A47L11/4038—Disk shaped surface treating tools
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- 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
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4072—Arrangement of castors or wheels
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- 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
- A47L2201/00—Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation
Definitions
- the present invention relates to a robot cleaner, and more particularly, to a robot cleaner in which a coupler capable of distributing stress generated by a load and stress generated by rotation is disposed between a body and a rotating plate.
- robot vacuum cleaners that cleans while driving in an area that needs to be cleaned by itself without user manipulation.
- Conventional robot cleaners include a sensor capable of recognizing a space to be cleaned, a mop capable of cleaning the floor, and the like, and can perform cleaning while driving the floor of the space recognized by the sensor and wiping with a mop.
- robot cleaners there is a wet robot cleaner capable of wiping the floor with a mop containing moisture in order to effectively remove foreign substances strongly attached to the floor.
- Korean Patent Registration No. 10-1903022 discloses a first cleaning module including a left spin-map and a right-side spin-map for moving the robot cleaner in rotational contact with the floor, and a second cleaning module disposed in front of the first cleaning module. Disclosed is a robot cleaner equipped with.
- the conventional robot cleaner discloses a robot cleaner in which a first cleaning module and a second cleaning module are installed to be inclined downward to left and right, respectively, and can move forward or backward by rotation of the cleaning module.
- the conventional robot cleaner has a problem in that excessive stress is concentrated in the cleaning module by the normal force applied at the contact point in contact with the floor surface and is easily damaged.
- the present invention was created to improve the problems of the conventional robot cleaner as described above, and by distributing the stress generated by the load and the stress generated by the rotation by arranging a coupler between the body and the rotating plate, damage to the rotating plate Its purpose is to prevent
- a robot cleaner includes: a body forming an exterior and including a driving motor; And a mop facing the floor is coupled to the lower side, the rotating plate is rotatably coupled to the body; a coupler coupled between the body and the rotating plate; Including, the rotating plate, a central plate coupled to the body; a spoke including a plurality of spokes radially formed along an outer circumferential surface of the central plate; an outer plate connected to the plurality of spokes and extending by a predetermined width; and a rotating shaft having one side connected to the driving motor and the other side coupled to the central plate to rotate the central plate.
- a coupling portion forming a space through which the rotation shaft passes; and a support portion extending from an outer circumferential surface of the coupling portion by a predetermined length outward in a radial direction.
- the support part may be formed to extend radially to correspond to the flesh of the spoke.
- the support portion may include: a first support end extending from an outer circumferential surface of the coupling portion and contacting an upper portion of the center plate; and a second support end connected to an outer end of the first support end. Including, the second support end may be arranged to form a stage with the first support end.
- the support portion may include: a wing portion extending from an outer end of the second support end; Including, the wing portion may be formed to protrude at a predetermined angle from the second support end so as to support the protruding jaw of the center plate.
- the second support end may be inclined downward from the first support end.
- the support part may be formed of a plurality of flat plates whose width is narrowed toward the outside in the radial direction.
- the coupler may include: a close contact portion extending downward by a predetermined length from an inner end forming an inner space of the coupling portion; may further include.
- the contact portion may be in surface contact with the outer peripheral surface of the rotation shaft.
- the contact part may be formed of a plurality of leaf springs extending downward.
- a plurality of leaf springs may be spaced apart from each other at predetermined intervals.
- the robot cleaner according to the present invention includes:
- FIG. 1 is a perspective view illustrating a robot cleaner according to an embodiment of the present invention.
- FIG. 2 is a diagram illustrating a portion of a robot cleaner according to an embodiment of the present invention in isolation.
- FIG 3 is a rear view of a robot cleaner according to an embodiment of the present invention.
- FIG. 4 is a diagram illustrating a partial configuration of the robot cleaner shown in FIG. 3 in isolation.
- FIG. 5 is a bottom view of the robot cleaner according to an embodiment of the present invention as viewed from the lower side.
- FIG. 6 is an exploded perspective view of a robot cleaner according to an embodiment of the present invention.
- FIG. 7 is a cross-sectional view schematically illustrating a robot cleaner and its configurations according to another embodiment of the present invention.
- FIG. 8 is a perspective view showing the structure of the first coupler included in the robot cleaner in an embodiment of the present invention in isolation.
- FIG. 9 is a cross-sectional view viewed from one side of the first coupler included in the robot cleaner according to an embodiment of the present invention.
- FIG. 10 is a view looking down from the top of the first coupler included in the robot cleaner according to an embodiment of the present invention.
- FIG. 11 is an exploded perspective view in which the structure in which the first rotating plate and the first coupler are coupled is separated in one embodiment of the present invention.
- FIG. 12 is a view looking down from the top of the structure in which the first rotating plate and the first coupler are combined in one embodiment of the present invention.
- FIG. 13 is a cross-sectional view viewed from one side of the structure in which the first rotary plate and the first coupler are coupled to the first mop in one embodiment of the present invention.
- FIG 14 is an enlarged partial cross-sectional view of a portion in which the first rotating plate and the first coupler are coupled in one embodiment of the present invention.
- 15A and 15B are partial cross-sectional views illustrating the structure before and after coupling with the first rotating plate of the first coupler in an embodiment of the present invention.
- first, second, etc. may be used to describe various components, but the components may not be limited by the terms. The terms are only for the purpose of distinguishing one component from another.
- a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.
- FIG. 1 is a perspective view showing a robot cleaner 1 according to an embodiment of the present invention
- FIG. 2 is a view showing some components separated from the robot cleaner 1 shown in FIG. 1
- FIG. 3 is It is a rear view showing the robot cleaner 1 shown in Fig. 1
- Fig. 4 is a view showing some components separated from the robot cleaner 1 shown in Fig. 3
- Fig. 5 is another embodiment of the present invention
- Figure 6 is an exploded perspective view showing the robot cleaner (1).
- the robot cleaner 1 according to an embodiment of the present invention is placed on the floor and moved along the floor surface B to clean the floor. Accordingly, in the following description, the vertical direction is determined based on the state in which the robot cleaner 1 is placed on the floor.
- the 'lowest part' of each configuration described in the embodiment of the present invention may be the lowest part in each configuration when the robot cleaner 1 according to the embodiment of the present invention is placed on the floor and used, or It may be the part closest to the floor.
- the robot cleaner 1 includes a body 100 , a first rotating plate 10 , a second rotating plate 20 , a first mop 30 and a second mop 40 . .
- the body 100 may form the overall appearance of the robot cleaner 1 or may be formed in the form of a frame. Each component constituting the robot cleaner 1 may be coupled to the body 100 , and some components constituting the robot cleaner 1 may be accommodated in the body 100 .
- the body 100 can be divided into a lower body 100a and an upper body 100b, and the parts of the robot cleaner 1 are provided in a space in which the lower body 100a and the upper body 100b are coupled to each other. can be (See Fig. 6)
- the body 100 may be formed in a shape in which the width (or diameter) in the horizontal direction (direction parallel to X and Y) is larger than the height in the vertical direction (direction parallel to Z).
- the body 100 may help the robot cleaner 1 achieve a stable structure, and provide a structure advantageous for avoiding obstacles in the robot cleaner 1 moving (running).
- the body 100 When viewed from above or below, the body 100 may have various shapes, such as a circle, an oval, or a square.
- the first rotating plate 10 is made to have a predetermined area, and is formed in the form of a flat plate or a flat frame.
- the first rotating plate 10 is generally laid horizontally, and thus, the horizontal width (or diameter) is sufficiently larger than the vertical height.
- the first rotating plate 10 coupled to the body 100 may be parallel to the bottom surface (B), or may form an inclination with the bottom surface (B).
- the first rotating plate 10 may be formed in a circular plate shape, and the bottom surface of the first rotating plate 10 may have a substantially circular shape.
- the first rotating plate 10 may be formed in a rotationally symmetrical shape as a whole.
- the first rotating plate 10 may include a first central plate 11 , a first outer plate 12 , and a first spoke 13 .
- the first central plate 11 is rotatably coupled to the body 100 while forming the center of the first rotating plate 10 .
- the first center plate 11 may be coupled to the lower side of the body 100 , and may be coupled to the body 100 while the upper surface of the first center plate 11 faces the bottom surface of the body 100 .
- the rotation shaft 15 of the first rotation plate 10 may be formed along a direction passing through the center of the first central plate 11 .
- the rotation shaft 15 of the first rotating plate 10 may be formed along a direction orthogonal to the bottom surface B, or may achieve a predetermined inclination in a direction orthogonal to the bottom surface B.
- the first outer plate 12 is formed to surround the first central plate 11 to be spaced apart from the first central plate 11 .
- the first spokes 13 connect the first central plate 11 and the first outer plate 12 , and are provided in plurality and are repeatedly formed along the circumferential direction of the first central plate 11 .
- the first spokes 13 may be arranged at equal intervals, and a plurality of holes 14 penetrating up and down between the first spokes 13 are provided, and the liquid discharged from the water supply tube 240 to be described later. (eg, water) may be delivered toward the first mop 30 through this hole 14 .
- the bottom surface of the first rotating plate 10 coupled to the body 100 may form a predetermined inclination with the bottom surface B, at this time the first rotating plate ( 10) of the rotation shaft 15 may form a direction perpendicular to the bottom surface (B) and a predetermined inclination.
- the angle ⁇ 1 between the bottom surface of the first rotation plate 10 and the floor surface B is, the rotation shaft 15 of the first rotation plate 10 is the bottom surface It may be made equal to the angle ⁇ 2 formed with the direction perpendicular to (B). Accordingly, when the first rotating plate 10 rotates with respect to the body 100 , the bottom surface of the first rotating plate 10 may be formed to maintain the same angle as the bottom surface (B).
- the second rotating plate 20 is made to have a predetermined area, and is formed in the form of a flat plate or a flat frame.
- the second rotating plate 20 is generally laid horizontally, and thus, the horizontal width (or diameter) is sufficiently larger than the vertical height.
- the second rotating plate 20 coupled to the body 100 may be parallel to the bottom surface (B), or may form an inclination with the bottom surface (B).
- the second rotating plate 20 may have a circular plate shape, and the bottom surface of the second rotating plate 20 may have a substantially circular shape.
- the second rotating plate 20 may be formed in a rotationally symmetrical shape as a whole.
- the second rotation plate 20 may include a second center plate 21 , a second outer plate 22 , and a second spoke 23 .
- the second center plate 21 is rotatably coupled to the body 100 while forming the center of the second rotation plate 20 .
- the second center plate 21 may be coupled to the lower side of the body 100 , and may be coupled to the body 100 while the upper surface of the second center plate 21 faces the bottom surface of the body 100 .
- the rotation shaft 25 of the second rotation plate 20 may be formed along a direction penetrating the center of the second central plate 21 .
- the rotation shaft 25 of the second rotary plate 20 may be formed along a direction orthogonal to the bottom surface B, or may achieve a predetermined inclination in a direction orthogonal to the bottom surface B.
- the second outer plate 22 is formed to surround the second central plate 21 to be spaced apart from the second central plate 21 .
- the second spokes 23 connect the second center plate 21 and the second outer plate 22 , and are provided in plurality and are repeatedly formed along the circumferential direction of the second center plate 21 .
- the second spokes 23 may be arranged at equal intervals, and a plurality of holes 24 penetrating up and down between the second spokes 23 are provided, and the liquid discharged from the water supply tube 240 to be described later. (Water) may be transferred toward the second mop 40 through this hole 24 .
- the bottom surface of the second rotating plate 20 coupled to the body 100 may form a predetermined inclination with the bottom surface B, in this case the second rotating plate 20 ) of the axis of rotation 25 may form a direction perpendicular to the bottom surface (B) and a predetermined inclination.
- the angle ⁇ 3 between the bottom surface of the second rotation plate 20 and the floor surface B is, the rotation shaft 25 of the second rotation plate 20 is the bottom surface It may be made the same as the angle ⁇ 4 formed with the direction perpendicular to (B). Accordingly, when the second rotating plate 20 rotates with respect to the body 100 , the bottom surface of the second rotating plate 20 may be formed to maintain the same angle as the bottom surface (B).
- the second rotating plate 20 may be made the same as the first rotating plate 10, or may be made symmetrically. If the first rotating plate 10 is located on the left side of the robot cleaner 1, the second rotating plate 20 may be located on the right side of the robot cleaner 1, and in this case, the first rotating plate 10 and the second rotating plate ( 20) can be symmetrical to each other.
- the first mop 30 has a bottom surface facing the floor to have a predetermined area, and the first mop 30 has a flat shape.
- the first mop 30 is formed in a form in which the width (or diameter) in the horizontal direction is sufficiently larger than the height in the vertical direction.
- the bottom surface of the first mop 30 may be parallel to the bottom surface (B), or may form an inclination with the bottom surface (B).
- the bottom surface of the first mop 30 may form a substantially circular shape.
- the first mop 30 may be formed in a rotationally symmetrical shape as a whole.
- the first mop 30 may be made of various materials capable of wiping the floor while in contact with the floor.
- the bottom surface of the first mop 30 may be made of a cloth made of woven or knitted fabric, a nonwoven fabric, and/or a brush having a predetermined area.
- the first mop 30 is detachably attached to the bottom of the first rotating plate 10 , coupled to the first rotating plate 10 , and together with the first rotating plate 10 . made to rotate
- the first mop 30 may be closely coupled to the bottom surface of the first outer plate 12 , and may be closely coupled to the bottom surface of the first central plate 11 and the first outer plate 12 .
- the first mop 30 may be detachably attached to the first rotating plate 10 using various devices and methods. In one embodiment, at least a portion of the first mop 30 may be coupled to the first rotating plate 10 in a manner such as being caught on the first rotating plate 10, fitting, and the like. In another embodiment, a separate device such as a clamp for coupling the first mop 30 and the first rotating plate 10 may be provided.
- a pair of fastening devices coupled to and separated from each other may be used, and the other may be fixed to the first mop 30 and the other side to the first rotating plate 10 .
- the first mop 30 and the first rotary plate 10 may be coupled to each other in an overlapping form, and the center of the first mop 30
- the first mop 30 may be coupled to the first rotating plate 10 so as to coincide with the center of the first rotating plate 10 .
- the second mop 40 has a bottom surface facing the floor to have a predetermined area, and the second mop 40 has a flat shape.
- the second mop 40 is formed in a form in which the width (or diameter) in the horizontal direction is sufficiently larger than the height in the vertical direction.
- the bottom surface of the second mop 40 may be parallel to the bottom surface (B), or may form an inclination with the bottom surface (B).
- the bottom surface of the second mop 40 may form a substantially circular shape.
- the second mop 40 may be formed in a rotationally symmetrical shape as a whole.
- the second mop 40 may be made of various materials capable of wiping the floor while in contact with the floor.
- the bottom surface of the second mop 40 may be made of a fabric or a knitted fabric, a non-woven fabric, and/or a brush having a predetermined area.
- the second mop 40 is detachably attached to the bottom surface of the second rotating plate 20 , coupled to the second rotating plate 20 , and together with the second rotating plate 20 . made to rotate
- the second mop 40 may be closely coupled to the bottom surface of the second outer plate 22 , and may be closely coupled to the bottom surfaces of the second center plate 21 and the second outer plate 22 .
- the second mop 40 may be detachably attached to the second rotating plate 20 using various devices and methods.
- at least a portion of the second mop 40 may be coupled to the second rotating plate 20 in a manner such as hooking the second rotating plate 20, fitting, and the like.
- a separate device, such as a clamp, for coupling the second mop 40 and the second rotating plate 20 may be provided.
- a pair of fastening devices coupled to and separated from each other may be used and the other side may be fixed to the second mop 40 and the other side to the second rotating plate 20.
- the second mop 40 and the second rotary plate 20 may be coupled to each other in an overlapping form, and the center of the second mop 40
- the second mop 40 may be coupled to the second rotating plate 20 so as to coincide with the center of the second rotating plate 20 .
- the robot cleaner 1 may be made to go straight along the floor surface (B).
- the robot cleaner 1 may go straight forward (X direction) when cleaning, or may go straight backward when it is necessary to avoid obstacles or cliffs.
- the first rotating plate 10 and the second rotating plate 20 are each bottom surface so that the side closer to each other is more spaced apart from the floor surface B than the side farther away from each other. It can be inclined with (B). That is, the first rotating plate 10 and the second rotating plate 20 may be configured such that a side farther from the center of the robot cleaner 1 is located closer to the floor than a side closer to the center of the robot cleaner 1 . (See Figs. 3 and 4)
- first rotation plate 10 and the second rotation plate 20 may be coupled to the rotation shafts 15 and 25 together with the first coupler 50 and the second coupler 60 disposed thereon. Specific structures and shapes of the first coupler 50 and the second coupler 60 will be described later in detail with reference to FIG. 8 or less.
- the rotation shaft 15 of the first rotation plate 10 is perpendicular to the bottom surface of the first rotation plate 10
- the rotation shaft 25 of the second rotation plate 20 is perpendicular to the bottom surface of the second rotation plate 20 .
- the first mop 30 When the first mop 30 is coupled to the first rotary plate 10 and the second mop 40 is coupled to the second rotary plate 20, the first mop 30 and the second mop 40 are farther from each other. part of each is in stronger contact with the floor.
- the robot cleaner 1 may move in a linear direction, and may move forward or backward.
- the robot cleaner 1 may move forward.
- the robot cleaner 1 may change the direction and rotate.
- the robot cleaner (1) can move while changing direction, and can move in a curved direction.
- the robot cleaner 1 includes a first support wheel 120 , a second support wheel 130 , and a first lower sensor 250 .
- the first support wheel 120 and the second support wheel 130 may be made to contact the floor together with the first mop 30 and the second mop 40 .
- the first support wheel 120 and the second support wheel 130 are spaced apart from each other, and each may be formed in the same shape as a conventional wheel.
- the first support wheel 120 and the second support wheel 130 may move while rolling in contact with the floor, and accordingly, the robot cleaner 1 may move along the floor surface (B).
- the first supporting wheel 120 may be coupled to the bottom surface of the body 100 at a point spaced apart from the first rotating plate 10 and the second rotating plate 20, and the second supporting wheel 130 is also a first rotating plate ( 10) and the second rotating plate 20 may be coupled to the bottom surface of the body 100 at a spaced point.
- the second support The wheel 130 is located on the same side as the first support wheel 120 with respect to the connecting line L1, and at this time, the auxiliary wheel 140 to be described later is different from the first supporting wheel 120 based on the connecting line L1. located on the side
- An interval between the first support wheel 120 and the second support wheel 130 may be made in a relatively wide form when considering the overall size of the robot cleaner 1 . More specifically, a state in which the first support wheel 120 and the second support wheel 130 are placed on the bottom surface B (the rotation shaft 125 and the second support wheel 130 of the first support wheel 120 ) of the rotation shaft 135 in a state parallel to the floor surface B), the first support wheel 120 and the second support wheel 130 stand up without falling sideways while supporting a portion of the load of the robot cleaner 1 It can be made to have enough spacing to be placed.
- the first support wheel 120 may be located in front of the first rotation plate 10
- the second support wheel 130 may be located in front of the second rotation plate 20 .
- the total center of gravity 105 is the first mop 30 and the second mop (30) rather than the first support wheel 120 and the second support wheel 130 side. 40), the load of the robot cleaner 1 is supported by the first mop 30 and the second mop 40 rather than the first support wheel 120 and the second support wheel 130. .
- the first lower sensor 250 is formed on the lower side of the body 100, and is configured to detect a relative distance to the floor (B).
- the first lower sensor 250 may be formed in various ways within a range capable of detecting the relative distance between the point where the first lower sensor 250 is formed and the bottom surface (B).
- the relative distance (which may be a vertical distance from the floor, or an inclined distance from the floor) detected by the first lower sensor 250 is a predetermined value with respect to the floor B.
- the bottom surface may be a case in which the upper extremity is lowered, and accordingly, the first lower sensor 250 may detect the cliff.
- the first lower sensor 250 may be formed of an optical sensor, and may include a light emitting unit for irradiating light and a light receiving unit through which the reflected light is incident.
- the first lower sensor 250 may be an infrared sensor.
- the first lower sensor 250 may be referred to as a cliff sensor.
- the first lower sensor 250 is formed on the same side as the first support wheel 120 and the second support wheel 130 with respect to the connection line L1.
- the first lower sensor 250 is positioned between the first support wheel 120 and the second support wheel 130 along the rim direction of the body 100 .
- the first lower sensor 250 is generally located in the middle.
- the first lower sensor 250 is formed in front of the support wheels 120 and 130 .
- the first lower sensor 250 is formed on the lower surface of the body 100 , the sensing of the cliff by the first lower sensor 250 is not hindered by the first mop 30 and the second mop 40 .
- the first lower sensor 250 is a point sufficiently spaced apart from the first rotation plate 10 and the second rotation plate 20 (also the second rotation plate 20).
- the first mop 30 and the second mop 40 and a point sufficiently spaced apart) may be formed. Accordingly, the first lower sensor 250 may be formed adjacent to the edge of the body 100 .
- the robot cleaner 1 may be configured such that the operation is controlled according to the distance sensed by the first lower sensor 250 . More specifically, according to the distance sensed by the first lower sensor 250 , the rotation of any one or more of the first rotating plate 10 and the second rotating plate 20 may be controlled. For example, when the distance detected by the first lower sensor 250 exceeds a predetermined value or out of a predetermined range, the rotation of the first rotating plate 10 and the second rotating plate 20 is stopped while the robot cleaner (1) is stopped, or the direction of rotation of the first rotating plate 10 and/or the second rotating plate 20 is switched, it may be made so that the moving direction of the robot cleaner 1 is switched.
- the direction detected by the first lower sensor 250 may be inclined downward toward the edge of the body 100 .
- the direction of the light irradiated by the first lower sensor 250 is not perpendicular to the floor B, but may be inclined toward the front. have.
- the first lower sensor 250 can detect a cliff positioned further in front of the first lower sensor 250 and can detect a cliff positioned in the front of the body 100 relatively, and the robot cleaner (1) can be prevented from entering the cliff.
- the robot cleaner 1 may change the direction to the left or right during cleaning, and may move in a curved direction, in which case the first mop 30, the second mop 40, the second mop
- the first support wheel 120 and the second support wheel 130 contact the floor and support the load of the robot cleaner 1 .
- the robot cleaner 1 moves while changing the direction to the left, the first support wheel 120 and the second support wheel 130 move to the cliff by the first lower sensor 250 before entering the cliff (F). (F) may be detected, and at least before the second support wheel 130 enters the cliff (F), the cliff (F) may be detected by the first lower sensor (250).
- the robot cleaner 1 includes a first mop 30 , a second mop 40 , a first support wheel 120 and a second The load is supported by the support wheel 130 , and at least, the load is supported by the first mop 30 , the second mop 40 and the second support wheel 130 .
- the robot cleaner 1 When the robot cleaner 1 rotates to the right and moves, the first support wheel 120 and the second support wheel 130 move to the cliff F by the first lower sensor 250 before entering the cliff F. ) may be detected, and the cliff F may be detected by the first lower sensor 250 before at least the first support wheel 120 enters the cliff F.
- the robot cleaner 1 includes a first mop 30 , a second mop 40 , a first support wheel 120 and a second The load is supported by the support wheel 130 , and at least, the load is supported by the first mop 30 , the second mop 40 and the first support wheel 120 .
- the first support wheel 120 and the second support wheel even when the robot cleaner 1 moves straight as well as when the direction is changed.
- the cliff (F) can be detected by the first lower sensor before 130 enters the cliff (F), and the robot cleaner (1) can be prevented from falling to the cliff (F), and the robot cleaner ( It can prevent the overall balance of 1) from being broken.
- the robot cleaner 1 includes a second lower sensor 260 and a third lower sensor 270 .
- the second lower sensor 260 and the third lower sensor 270 are formed on the lower side of the body 100 on the same side as the first support wheel 120 and the second support wheel 130 with respect to the connection line L1. And it can be made to sense the relative distance to the floor (B).
- the second lower sensor 260 As the second lower sensor 260 is formed on the lower surface of the body 100 , the detection of the cliff F by the second lower sensor 260 is detected by the first mop 30 and the second mop 40 .
- the second lower sensor 260 is formed to be spaced apart from the first mop 30 and the second mop 40 so as not to be disturbed by it.
- the second lower sensor 260 is provided from the first support wheel 120 or the second support wheel 130 . It may be formed at points spaced outward.
- the second lower sensor 260 may be formed adjacent to the edge of the body 100 .
- the second lower sensor 260 may be formed opposite to the first lower sensor 250 with respect to the first support wheel 120 . Accordingly, the detection of the cliff F on either side of the first support wheel 120 is made by the first lower sensor 250, and the detection of the cliff F on the other side is detected by the second lower sensor ( 260), the detection of the cliff F in the vicinity of the first support wheel 120 can be made effectively.
- the third lower sensor 270 As the third lower sensor 270 is formed on the lower surface of the body 100 , the detection of the cliff F by the third lower sensor 270 is detected by the first mop 30 and the second mop 40 .
- the third lower sensor 270 is formed to be spaced apart from the first mop 30 and the second mop 40 so as not to be disturbed by it.
- the second lower sensor 260 is provided from the first support wheel 120 or the second support wheel 130 . It may be formed at points spaced outward.
- the second lower sensor 260 may be formed adjacent to the edge of the body 100 .
- the third lower sensor 270 may be formed opposite to the first lower sensor 250 with respect to the second support wheel 130 . Accordingly, the detection of the cliff F on either side of the second support wheel 130 is made by the first lower sensor 250, and the detection of the cliff F on the other side is performed by the second lower sensor ( 260), and the detection of the cliff F in the vicinity of the second support wheel 130 can be made effectively.
- Each of the second lower sensor 260 and the third lower sensor 270 may be formed in various ways within a range capable of detecting a relative distance to the floor B.
- Each of the second lower sensor 260 and the third lower sensor 270 may be formed in the same manner as the above-described first lower sensor 250 , except for the positions where they are formed.
- the robot cleaner 1 may be configured such that the operation is controlled according to the distance sensed by the second lower sensor 260 . More specifically, according to the distance sensed by the second lower sensor 260 , the rotation of any one or more of the first rotating plate 10 and the second rotating plate 20 may be controlled. For example, when the distance detected by the second lower sensor 260 exceeds a predetermined value or out of a predetermined range, the rotation of the first rotating plate 10 and the second rotating plate 20 is stopped while the robot cleaner ( 1) is stopped, or the direction of rotation of the first rotating plate 10 and/or the second rotating plate 20 is switched while the moving direction of the robot cleaner 1 is changed.
- the robot cleaner 1 may be configured such that the operation is controlled according to the distance sensed by the third lower sensor 270 . More specifically, according to the distance sensed by the third lower sensor 270 , rotation of one or more of the first rotating plate 10 and the second rotating plate 20 may be controlled. For example, when the distance detected by the third lower sensor 270 exceeds a predetermined value or out of a predetermined range, the rotation of the first rotating plate 10 and the second rotating plate 20 is stopped while the robot cleaner ( 1) is stopped, or the direction of rotation of the first rotating plate 10 and/or the second rotating plate 20 is switched while the moving direction of the robot cleaner 1 is changed.
- the second lower sensor 260 and the third lower sensor 270 are the center of the first rotation plate 10 , the center of the second rotation plate 20 , the center of the first support wheel 120 , and the second support. It is located outside the rectangular vertical region having the center of the wheel 130 as each vertex.
- the third lower sensor 270 may be positioned on the right side of the robot cleaner 1 .
- the second lower sensor 260 and the third lower sensor 270 may form a symmetry with each other.
- the robot cleaner 1 can be rotated, and at this time, the first mop 30 , the second mop 40 , the first support wheel 120 and the second support wheel 130 are It contacts the floor and supports the load of the robot cleaner (1).
- the robot cleaner 1 When the cliff F is located on the left side of the robot cleaner 1 and the robot cleaner 1 changes the direction or turns to the left, the first support wheel 120 and the second support wheel 130 move the cliff (F)
- the cliff F may be detected by the second lower sensor 260 before entering the road.
- the robot cleaner 1 includes a first mop 30 , a second mop 40 , a first support wheel 120 and a second The load is supported by the support wheel 130 .
- the robot cleaner 1 when the cliff F is located on the right side of the robot cleaner 1 and the robot cleaner 1 changes the direction or rotates to the right, the first support wheel 120 and the second support wheel 130 slide off the cliff ( The cliff F may be detected by the third lower sensor 270 before entering F).
- the robot cleaner 1 includes the first mop 30 , the second mop 40 , the first support wheel 120 and the second The load is supported by the support wheel 130 .
- the robot cleaner 1 when the robot cleaner 1 changes direction or rotates to either side, the robot cleaner 1 prevents the robot cleaner 1 from falling to the cliff F This can be done, and it is possible to prevent the overall balance of the robot cleaner 1 from being broken.
- the robot cleaner 1 may include an auxiliary wheel 140 together with the first support wheel 120 and the second support wheel 130 .
- the auxiliary wheel 140 may be spaced apart from the first rotating plate 10 and the second rotating plate 20 and coupled to the lower side of the body 100 .
- the auxiliary wheel 140 is located on the other side from the first support wheel 120 and the second support wheel 130 with respect to the connection line L1.
- the auxiliary wheel 140 may be formed in the same shape as a conventional wheel, and the rotation shaft 145 of the auxiliary wheel 140 may be formed parallel to the bottom surface (B).
- the auxiliary wheel 140 may move while rolling in contact with the floor, and accordingly, the robot cleaner 1 may move along the floor surface (B).
- the auxiliary wheel 140 is made so as not to contact the floor when the first mop 30 and the second mop 40 come into contact with the floor.
- the first supporting wheel 120 and the second supporting wheel 130 are located at the front, and the auxiliary wheel 140 is located at the rear.
- the first rotating plate 10 and the second rotating plate 20 are symmetrical (left-right symmetric) to each other, and the first supporting wheel 120 and the second supporting wheel ( 130) may be symmetrical (left-right symmetry) to each other.
- the second The first support wheel 120 , the second support wheel 130 and the auxiliary wheel 140 do not prevent the first mop 30 and the second mop 40 from contacting the floor.
- the first mop 30 and the second mop 40 are in contact with the floor, and mopping and cleaning can be made by the rotation of the first mop 30 and the second mop 40 .
- the first support wheel 120 , the second support wheel 130 , and the auxiliary wheel 140 may all be spaced apart from the floor, or the auxiliary wheel 140 may be spaced apart from the floor and the first support wheel 120 .
- the second support wheel 130 may be made to contact the floor.
- the most of the first support wheel 120 from the floor surface B The height to the lower part and the height from the bottom surface (B) to the lowest part of the second support wheel 130 are made lower than the height from the bottom surface (B) to the lowest part of the auxiliary wheel 140 .
- the robot cleaner 1 includes a first actuator 160 , a second actuator 170 , a battery 220 , a water tank 230 , and a water supply tube 240 .
- the first actuator 160 is coupled to the body 100 to rotate the first rotating plate 10 .
- the first actuator 160 may include a first case 161 , a first motor 162 , and one or more first gears 163 .
- the first case 161 supports the components constituting the first actuator 160 , and is fixedly coupled to the body 100 .
- the first motor 162 may be formed of an electric motor.
- the plurality of first gears 163 are engaged with each other to rotate, connect the first motor 162 and the first rotation plate 10 , and use the rotational power of the first motor 162 to the first rotation plate 10 . transmit Accordingly, when the rotation shaft of the first motor 162 rotates, the first rotation plate 10 rotates.
- the second actuator 170 is coupled to the body 100 to rotate the second rotating plate 20 .
- the second actuator 170 may include a second case 171 , a second motor 172 , and one or more second gears 173 .
- the second case 171 supports the components constituting the second actuator 170 , and is fixedly coupled to the body 100 .
- the second motor 172 may be an electric motor.
- the plurality of second gears 173 are engaged with each other to rotate, connect the second motor 172 and the second rotation plate 20 , and use the rotational power of the second motor 172 to the second rotation plate 20 . transmit Accordingly, when the rotation shaft of the second motor 172 rotates, the second rotation plate 20 rotates.
- the first rotating plate 10 and the first mop 30 may rotate by the operation of the first actuator 160 , and the second actuator 170 .
- the second rotary plate 20 and the second mop 40 can be rotated.
- the first actuator 160 may be disposed directly above the first rotating plate 10 . With this configuration, it is possible to minimize the loss of power transmitted from the first actuator 160 to the first rotating plate 10 . In addition, by applying the load of the first actuator 160 toward the first rotary plate 10, the first mop 30 can be sufficiently rubbed with the floor to make mopping.
- the second actuator 170 may be disposed directly above the second rotating plate 20 . With this configuration, it is possible to minimize the loss of power transmitted from the second actuator 170 to the second rotating plate 20 . In addition, by applying the load of the second actuator 170 toward the second rotary plate 20, the second mop 40 can be sufficiently rubbed against the floor to make mopping.
- the second actuator 170 may form a symmetry (left and right symmetry) with the first actuator 160 .
- the battery 220 is coupled to the body 100 to supply power to other components constituting the robot cleaner 1 .
- the battery 220 may supply power to the first actuator 160 and the second actuator 170 , and in particular, supplies power to the first motor 162 and the second motor 172 .
- the battery 220 may be charged by an external power source, and for this, one side of the body 100 or the battery 220 itself is provided with a charging terminal for charging the battery 220 .
- an external power source for this, one side of the body 100 or the battery 220 itself is provided with a charging terminal for charging the battery 220 .
- the battery 220 may be coupled to the body 100 .
- the bucket 230 is made in the form of a container having an internal space so that a liquid such as water is stored therein.
- the bucket 230 may be fixedly coupled to the body 100 , or may be removably coupled from the body 100 .
- the bucket 230 may be located above the auxiliary wheel 140 .
- the water supply tube 240 is made in the form of a tube or pipe, and is connected to the water tank 230 so that the liquid inside the water tank 230 can flow through the inside.
- the water supply tube 240 is made such that the opposite end connected to the water tank 230 is located above the first rotary plate 10 and the second rotary plate 20, and accordingly, the liquid inside the water tank 230 is removed. 1 so that it can be supplied to the mop 30 and the second mop (40).
- the water supply tube 240 may be formed in a form in which one tube is branched into two, and at this time, any one of the branched ends is on the upper side of the first rotating plate 10 . is located, and the other branched end may be located above the second rotating plate 20 .
- a separate pump may be provided to move the liquid through the water supply tube 240 .
- the center of gravity 105 of the robot cleaner 1 is the center of the first rotating plate 10 , the center of the second rotating plate 20 , the center of the first supporting wheel 120 , and the center of the second supporting wheel 130 . It may be located inside the vertical region of the rectangle with each vertex. Accordingly, the robot cleaner 1 is supported by the first mop 30 , the second mop 40 , the first support wheel 120 , and the second support wheel 130 .
- each of the first actuator 160 , the second actuator 170 , the battery 220 and the water tank 230 is relatively heavy in the robot cleaner 1 . It can be achieved, the first actuator 160 and the second actuator 170 are located on or adjacent to the connecting line, the battery 220 is located in front of the connecting line, and the bucket 230 is located behind the connecting line,
- the overall center of gravity 105 of the robot cleaner 1 can be positioned at the center of the robot cleaner 1, so that the first mop 30 and the second mop 40 are in stable contact with the floor. can do.
- first actuator 160, the second actuator 170, the battery 220, and the bucket 230 are each located on different areas in a plan view, a relatively flat body 100 and It is possible to form the robot cleaner 1, and it is possible to form the robot cleaner 1, which can easily enter the lower side of a shelf or table.
- the robot cleaner 1 when the robot cleaner 1 in which the liquid is sufficiently accommodated in the bucket 230 is initially driven, only the first mop 30 and the second mop 40 are the floor Each weight can be distributed so as to be cleaned while in contact with the first support wheel 120 and Cleaning may be performed while the first mop 30 and the second mop 40 are in contact with the floor together with the second support wheel 130 .
- the robot cleaner 1 regardless of whether the liquid inside the bucket 230 is exhausted, the first support wheel together with the first mop 30 and the second mop 40 ( 120) and the second support wheel 130 may be cleaned while in contact with the floor.
- the robot cleaner 1 includes a second lower sensor 260 , a first support wheel 120 , a first lower sensor 250 , and a second along the rim direction of the body 100 .
- the support wheel 130 and the third lower sensor 270 may be arranged in order.
- FIG. 7 is a cross-sectional view schematically showing the robot cleaner 1 and its configurations according to another embodiment of the present invention.
- the robot cleaner 1 may include a controller 180 , a bumper 190 , a first sensor 200 , and a second sensor 210 .
- the controller 180 may be configured to control operations of the first actuator 160 and the second actuator 170 according to preset information or real-time information.
- the robot cleaner 1 may include a storage medium in which an application program is stored, and the controller 180 outputs information input to the robot cleaner 1 and output from the robot cleaner 1 . It may be made to control the robot cleaner 1 by driving an application program according to the information and the like.
- the bumper 190 is coupled along the rim of the body 100 , and is made to move relative to the body 100 .
- the bumper 190 may be coupled to the body 100 to be reciprocally movable along a direction approaching the center of the body 100 .
- the bumper 190 may be coupled along a portion of the rim of the body 100 , or may be coupled along the entire rim of the body 100 .
- the lowest portion of the body 100 forming the same side as the bumper 190 with respect to the connecting line L1 may be made higher than or equal to the lowest portion of the bumper 190 . . That is, the bumper 190 may be lower than or equal to the body 100 . Accordingly, an obstacle at a relatively low position may collide with the bumper 190 and be sensed by the bumper 190 .
- the first sensor 200 may be coupled to the body 100 and may be configured to detect a movement (relative movement) of the bumper 190 with respect to the body 100 .
- the first sensor 200 may be formed using a microswitch, a photo interrupter, or a tact switch.
- the controller 180 may control the robot cleaner 1 to avoid maneuver when the bumper 190 of the robot cleaner 1 comes into contact with an obstacle, and according to information from the first sensor 200 , It may be configured to control the operation of the first actuator 160 and/or the second actuator 170 . For example, when the bumper 190 comes into contact with an obstacle while the robot cleaner 1 is driving, the position where the bumper 190 comes into contact may be recognized by the first sensor 200 , and the controller 180 may The operation of the first actuator 160 and/or the second actuator 170 may be controlled to deviate from the contact position.
- the second sensor 210 may be coupled to the body 100 and configured to detect a relative distance to an obstacle.
- the second sensor 210 may be a distance sensor.
- the controller 180 changes the traveling direction of the robot cleaner 1 or the robot cleaner 1 ) may control the operation of the first actuator 160 and/or the second actuator 170 so as to move away from the obstacle.
- control unit 180 according to the distance detected by the first lower sensor 250, the second lower sensor 260, or the third lower sensor 270, the robot cleaner 1 is stopped or the running direction is switched As much as possible, the operation of the first actuator 160 and/or the second actuator 170 may be controlled.
- the frictional force between the first mop 30 and the bottom surface B generated when the first rotating plate 10 is rotated and the second rotating plate 20 is rotated By the frictional force between the generated second mop 40 and the bottom surface (B), movement (running) can be made.
- the first support wheel 120 and the second support wheel 130 prevent the movement (running) of the robot cleaner 1 by friction with the floor. It may be made to the extent that it does not occur, and it may be made to such an extent that the load does not increase when the robot cleaner 1 moves (driving).
- the width of the first support wheel 120 and the width of the second support wheel 130 may be made sufficiently small compared to the diameter of the first rotation plate 10 or the diameter of the second rotation plate 20 .
- the second The friction force between the first support wheel 120 and the floor surface (B) and the friction force between the second support wheel 130 and the floor surface (B) are, the friction force between the first mop 30 and the floor surface (B) and the second mop It is made very small compared to the friction force between (40) and the floor surface (B), and thus does not cause unnecessary power loss, and does not interfere with the movement of the robot cleaner (1).
- the robot cleaner 1 has a stable four-point support by the first support wheel 120 , the second support wheel 130 , the first mop 30 and the second mop 40 . It is possible.
- the rotation shaft 125 of the first support wheel 120 and the rotation shaft 135 of the second support wheel 130 may be made parallel to the connection line L1. have. That is, the position of the rotation shaft 125 of the first support wheel 120 and the rotation shaft 135 of the second support wheel 130 may be fixed (fixed in the left and right directions) on the body 100 .
- the first support wheel 120 and the second support wheel 130 may come into contact with the floor together with the first mop 30 and the second mop 40, and at this time, linear movement of the robot cleaner 1 is performed.
- the first mop 30 and the second mop 40 may rotate in opposite directions at the same speed, the first support wheel 120 and the second support wheel 130 are the robot cleaner (1). It assists the forward and backward linear movement.
- the robot cleaner 1 may include an auxiliary wheel body 150 .
- the auxiliary wheel body 150 is rotatably coupled to the lower side of the body 100
- the auxiliary wheel 140 is rotatably coupled to the auxiliary wheel body 150 .
- auxiliary wheel 140 is coupled to the body 100 via the auxiliary wheel body 150 .
- the rotation shaft 145 of the auxiliary wheel 140 and the rotation shaft 155 of the auxiliary wheel body 150 may be formed to intersect each other, and the direction of the rotation shaft 145 of the auxiliary wheel 140 and the auxiliary wheel body ( The directions of the rotation shafts 155 of 150 may be orthogonal to each other.
- the axis of rotation 155 of the auxiliary wheel body 150 may be directed in the vertical direction or slightly inclined in the vertical direction, and the axis of rotation 145 of the auxiliary wheel 140 may be directed in the horizontal direction.
- the auxiliary wheel 140 is a robot cleaner when the robot cleaner 1 is not substantially used (the first mop 30 and the second mop 40 are the robot cleaners) When it is separated in (1)), it comes into contact with the floor surface (B), and in this state, if you want to move the robot cleaner 1, the direction in which the auxiliary wheel 140 is directed by the auxiliary wheel body 150 is It is freely deformed, and movement of the robot cleaner 1 can be made easily.
- FIG. 8 is a perspective view showing the structure of the first coupler 50 included in the robot cleaner 1 in an embodiment of the present invention in isolation
- FIG. 9 is a robot cleaner 1 in an embodiment of the present invention. It is a cross-sectional view of the included first coupler 50 as viewed from one side
- FIG. 10 is a view looking down from the top of the first coupler 50 included in the robot cleaner 1 in an embodiment of the present invention.
- the robot cleaner 1 may further include couplers 50 and 60 .
- couplers 50 and 60 the configuration of the first coupler 50 coupled to the upper portion of the first rotary plate 10 will be described in detail, and the second coupler 60 is coupled to the upper portion of the second rotary plate 20 in the same manner as the first coupler 50 .
- the upper or upper portion means the direction of the lower body 100a
- the lower or lower portion means the direction of the first mop 30 .
- the first coupler 50 is disposed on the upper portion of the first rotary plate 10 , and specifically, disposed on the upper portion of the first central plate 11 , and may be coupled through the rotary shaft 15 .
- the first coupler 50 may include a first coupling part 51 in which an inner space corresponding to the shape of the rotation shaft 15 is formed so as to be through-coupled by the rotation shaft 15 .
- the shape of the first coupling part 51 may be formed in a cylindrical shape. In the center of the first coupling portion 51, an inner space having a longer length in the longitudinal direction compared to the length in the unidirectional direction may be formed. In addition, according to another embodiment, when the shape of the rotation shaft 15 is changed, the shape of the inner space may be formed correspondingly.
- the shape of the outer surface may be formed to surround a ring portion having a predetermined thickness, which is formed to protrude from the center of the first central plate 11 .
- the first coupler 50 may include a first support part 53 connected to the first coupling part 51 and extending by a predetermined width along the outer periphery of the first coupling part 51 .
- the first support part 53 may be formed to extend radially along the outer peripheral surface of the first coupling part 51 . As the number of plates of the first support part 53 increases, the outer edge of the first support part 53 may be formed in a substantially circular shape. When the number of plates increases, the empty space between the plates becomes narrower, so that the efficiency of dispersing the stress of the first central plate 11 may be increased.
- the first support part 53 may include a first support end 53a, a second support end 53b, a wrinkle part 53c, and a wing part 53d.
- the wrinkle part 53c , the second support end 53b and the wing part 53d may be sequentially connected to the outer side of the first support end 53a in the radial direction.
- the first support end 53a may be formed to protrude from the outer circumferential surface of the first coupling part 51 .
- the first support end 53a has a ring-shaped flat plate, and protrudes from the outer circumferential surface at every predetermined angle with respect to the central axis. It may be formed to include a rectangular flat plate.
- the second support end 53b is connected to one end of the first support end 53a, and may be formed in a step with the first support end 53a.
- the first support end 53a and the second support end 53b constitute a cantilever beam to perform the function of a leaf spring, which will be described in detail with reference to FIG. 15 .
- the wrinkle portion 53c may be disposed between the first support end 53a and the second support end 53b.
- the wrinkle portion 53c may be formed by forming at least two or more stages so that the second support end 53b can flow to the free end of the cantilever beam.
- the inner end of the second support end 53b is fixed, and the outer end may be rotated at a predetermined angle by a pressure applied from below. Therefore, the wrinkle portion 53c may be formed in a multi-stage structure so that the second support end 53b may flow.
- the wing portion 53d may be formed at the outermost end of the second support end 53b, that is, the outermost portion of the first coupler 50 . Referring to FIG. 9 , the wing part 53d may be formed to be inclined upward from the second support end 53b to support the protruding jaw of the central plate 11 .
- the wing part 53d may be formed of a metal material. In this case, the wing portion 53d may have an elastic force for relieving the stress transferred to the center plate 11 .
- the wing portion 53d may be deformed so that the angle with the second support end 53b approaches 90° by the chin of the center plate 110 .
- the wing portion 53d formed of a metal material may have a restoring force to return to the original angle.
- the predetermined angle between the wing portion 53d and the second support end 53b is sufficient to stably contact the jaw of the first center plate 11 and relieve the stress transmitted to the center plate 11 . It can be set in a range that can have a restoring force.
- the wing portion 53d may have an angle with the second support end 53b set to be smaller than 90°.
- the elastic force for resolving this is more effective when the rotational elastic force is directed toward the ground, and the wing portion 53d is preferably set to have an angle of less than 90° with the second support end 53b.
- the first coupler 50 may further include a first contact portion 52 extending from the inner end forming the inner space of the first coupling portion 51 to the lower end, that is, by a predetermined length toward the ground.
- the first contact portion 52 may perform a function of preventing the shaking of the rotation shaft 15 by making surface contact with the outer peripheral surface of the rotation shaft 15 .
- the embodiment of the present invention includes the first contact portion 52 in the inner space coupled to the rotation shaft 15 of the first coupler 50 to minimize the shaking transmitted from the rotation shaft 15 .
- the first contact portion 52 may be formed to correspond to the shape of the rotation shaft 15 .
- the first contact part 52 is disposed in the inner space of the first coupling part 51 , and the inner space of the first coupling part 51 corresponds to the shape of the rotating shaft 15 , and the first contact part 52 .
- the shape of the first contact portion 52 may be formed as a curved surface having a predetermined height corresponding to the cylindrical shape of the rotation shaft 15, and when the shape of the rotation shaft 15 includes a flat surface, Correspondingly, it may be formed in a flat plate shape.
- the long direction may be formed in a flat plate shape and the unidirectional may be formed in a curved surface.
- the first contact part 52 may be formed of a plurality of leaf springs extending downward.
- the first contact portion 52 may prevent direct contact between the rotation shaft 15 and the first center plate 11 .
- it in order to reduce the shaking of the rotating shaft 15, it may be formed of a metal material to perform the function of a leaf spring. Accordingly, when the first contact portion 52 is deformed toward the first center plate 11 due to the shaking of the rotation shaft 15 , a restoring force for restoring it to its original state may be generated. Therefore, the stress of the rotating shaft 15 is canceled by the restoring force of the first contact part 52 , and damage to the first center plate 11 can be prevented.
- the plurality of leaf springs of the first contact part 52 may be spaced apart from each other to have a predetermined distance.
- the first contact portion 52 is preferably formed to be in close contact with at least four directions. Accordingly, the first contact portion 52 may be formed of at least four or more leaf springs.
- the first contact portion 52 is formed of a plurality of leaf springs, there is an effect that can prevent damage even in strong shaking in one direction.
- each of the leaf springs may be spaced apart from each other by a predetermined interval.
- the leaf spring must be moved at a predetermined angle by the shaking of the rotating shaft 15 to generate a restoring force to restore it to its original state.
- each of the leaf springs may be disposed to have a predetermined interval to prevent movement of the leaf springs from being disturbed by contact with other leaf springs.
- FIG. 11 is an exploded perspective view in which the structure in which the first rotating plate 10 and the first coupler 50 are coupled is separated in an embodiment of the present invention
- FIG. 12 is a first rotating plate 10 in an embodiment of the present invention.
- the first coupler 50 is a view looking down from the top of the combined structure
- Figure 13 is a first rotary plate 10 and the first coupler 50 in one embodiment of the present invention is combined with the first mop (30) It is a cross-sectional view of the structure viewed from one side.
- the first rotating plate 10 and the first coupler 50 may be coupled to each other.
- the rotating shaft 15 moves the first central plate 11 . It can be through-bonded with it in between.
- the rotating shaft 15 may include a coupling pin 15a, a shaft driving unit 15b, and a shaft body 15c (see FIG. 13), and the first central plate 11 is a shaft body 15c. ) and the coupling pin (15a) may be disposed between the fixed coupling.
- the first coupler 50 is disposed on the upper portion of the first central plate 11, and is disposed between the shaft body 15c and the coupling pin 15a together with the first central plate 11 to be fixedly coupled. . Therefore, in the order of coupling, after the first center plate 11 , the first spokes 13 and the first outer plate 12 are combined, the first coupler 50 is covered on the first center plate 11 , and then the rotation shaft (15) may be coupled through the first center plate 11 and the first coupler (50).
- the first coupler 50 may be formed to extend radially to correspond to the number of flesh of the first spoke 13 . Stress generated by contacting the bottom surface of the first rotating plate 10 may be transferred from a portion in contact with the bottom surface of the first rotating plate 10 in the central direction. (See FIG. 3 ) Accordingly, the stress may be transmitted from one side of the first outer plate 12 to the first central plate 11 through any one of the spokes 13 .
- the first coupler 50 is formed to extend to correspond to the flesh of the first spoke 13 in order to disperse the transmitted stress, and to match the directions to be located on the same virtual line to improve the efficiency of receiving the stress. can
- the first support part 53 of the first coupler 50 may be formed in the shape of a plurality of flat plates whose width becomes narrower toward the outside in the radial direction.
- the first spoke 13 is composed of a plurality of spokes radially formed along the outer circumferential surface of the first central plate 11, and the water from the water tank 230 through the hole 14 between the flesh It is formed to be delivered to the first mop (30). Therefore, it is preferable that the plurality of flesh of the first spoke 13 have a minimum width so that water can be smoothly supplied to the first mop 30 .
- the end of the first support part 53 on the side of the first spoke 13 may be formed to have a width corresponding to the width of the flesh of the first spoke 13 in order to improve the efficiency of receiving the stress.
- the rotation shaft 15 side of the first support part 53 may be formed such that each radial plate is connected to each other to form an approximately circular shape in order to distribute the stress transmitted from the rotation shaft 15 to the first center plate 11 . have.
- the first support part 53 may be formed of a plurality of flat plates whose width increases toward the inner side in the radial direction.
- the rotation shaft 15 may be inclined to have a predetermined angle ⁇ 2 with the first mop 30 .
- the rotation shaft 15 is disposed to have a constant angle ⁇ 2 with the ground for forward and backward movement. Therefore, the first center plate 11, the first outer plate 12, the first spoke 13, and the first coupler 50 coupled by the rotation shaft may be arranged to have a constant angle ⁇ 2 with the ground. .
- the predetermined angle ⁇ 2 of the first rotating plate 10 generates continuous stress at a position in contact with the ground of the first rotating plate 10 .
- the generated stress is transmitted to the center direction of the first rotating plate 10 and causes damage, and the first coupler 50 can solve this problem by dispersing the stress.
- FIGS. 15A and 15B are a first coupler in an embodiment of the present invention. It is a partial cross-sectional view showing the structure before and after the coupling with the first rotating plate 10 of (50).
- the wing part 53d of the first coupler 50 may contact and support the protruding jaw of the first center plate 11 .
- the first central plate 11 has an inner space to which the rotation shaft 15 can be coupled, and is formed of a coupling part having a predetermined height, and a two-stage single-layer part extending by a predetermined width along the outer periphery of the coupling part. can (See FIG. 11 )
- the wing part 53d of the first coupler 50 may contact the chin between the two-stage single-layer parts of the first middle plate 11 .
- the first coupler 50 supports the first center plate 11 through the wing portion 53d, and as described above, it is possible to prevent the flow of the first center plate 11 through the elastic force.
- the first coupling part 51 and the first contact part 52 of the first coupler 50 may form a predetermined space that can be fitted into the coupling part of the first center plate 11 .
- an end of the first contact part 52 may be spaced apart from the first center plate 11 by a predetermined interval. That is, the length of the first contact portion 52 may be shorter than the height of the coupling portion of the first center plate 11 . Accordingly, a portion of the coupling portion of the first center plate 11 may not directly contact the first contact portion 52 , and may not receive stress from the rotation shaft 15 .
- the shape of the first support part 53 of the first coupler 50 may be deformed depending on before and after coupling with the rotation shaft 15 and the first center plate 11 .
- the first support part 53 includes a wrinkle part 53c that can be flexibly deformed up and down, and a wing part 53d formed at a predetermined angle toward the top at the outer end. .
- the wing portion 53d is disposed to have a predetermined angle toward the upper portion, so that the load per unit length of the first support portion 53 may be formed to be the highest. Therefore, the first support part 53 has a high load on the outer side where the wing part 53d is disposed, and the wrinkle part 53c can flow up and down, so that before coupling with the rotation shaft 15 and the first center plate 11 , the first support part 53 has a high load. (See FIG. 15A ), it may be formed to be inclined downward by its own weight.
- FIG. 15B shows a shape in which the first coupler 50 is coupled by the first central plate 11 and the rotation shaft 15 .
- the second support end 53b of the first support part 53 is supported by the first center plate 11 and may be in close contact with each other in a flat plate shape.
- the second support end 53b of the first support part 53 may be contact-supported from below by the first center plate 11 .
- the coupling force between the first center plate 11 and the rotation shaft 15 is stronger than the weight of the second support end 53b and the wing portion 53d, so that the second support end 53b can be pushed up.
- the first support part 53 may be deformed into a flat plate shape to be in close contact with the surface in contact with the first center plate 11 .
- the first support part 53 is formed to be deformable in shape before and after coupling with the rotation shaft 15 and the first center plate 11 , and comes into close contact with the first center plate 11 . can do.
- the second support end 53b moves up and down in response thereto to obtain an effect of maintaining contact.
- the wrinkle portion 53c generates a rotational elastic force to restore the initial shape, thereby preventing vertical flow of the first center plate 11 through the second support end 53b.
- the second coupler 60 has the same structure and function as the first coupler 50 , and may be described by referring to the above-described description of the first coupler 50 .
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Abstract
Description
Claims (10)
- 외관을 형성하고 구동모터를 포함하는 바디; 및바닥과 마주하는 걸레가 하측에 결합되고, 상기 바디에 회전가능하게 결합되는 회전판;상기 바디와 상기 회전판 사이에 결합되는 커플러;를 포함하고,상기 회전판은,상기 바디와 결합되는 중앙판;상기 중앙판의 외주면을 따라 방사상으로 형성되는 복수개의 살을 포함하는 스포크;상기 스포크의 복수개의 살과 연결되며 소정의 너비만큼 연장 형성되는 외곽판; 및일측은 상기 구동모터와 연결되며 타측은 상기 중앙판과 결합하여, 상기 중앙판을 회전시키는 회전축;을 포함하고,상기 커플러는,상기 회전축이 관통되는 공간을 형성하는 결합부; 및상기 결합부의 외주면에서 반경방향의 외측으로 소정의 길이만큼 연장 형성되는 지지부;를 포함하는 로봇 청소기.
- 제1항에 있어서,상기 지지부는,상기 스포크의 살과 대응하도록 방사형으로 연장 형성되는 것을 특징으로 하는 로봇 청소기.
- 제2항에 있어서,상기 지지부는,상기 결합부의 외주면에서 연장되고 상기 중앙판의 상부에 접촉하는 제1 지지단; 및상기 제1 지지단의 외측 단부와 연결되는 제2 지지단;을 포함하고,상기 제2 지지단은,상기 제1 지지단과 단을 이루어서 배치되는 것을 특징으로 하는 로봇 청소기.
- 제3항에 있어서,상기 지지부는,상기 제2 지지단의 외측 단부에서 연장 형성되는 날개부;를 포함하고,상기 날개부는,상기 중앙판의 돌출된 턱을 지지하도록, 상기 제2 지지단에서 소정 각도로 돌출 형성되는 것을 특징으로 하는 로봇 청소기.
- 제3항에 있어서,상기 제2 지지단은,상기 제1 지지단에서 하방으로 경사지게 형성되는 것을 특징으로 하는 로봇 청소기.
- 제2항에 있어서,상기 지지부는,반경방향의 외측으로 갈수록 폭이 좁아지는 복수개의 평판으로 형성되는 것을 특징으로 하는 로봇 청소기.
- 제1항에 있어서,상기 커플러는,상기 결합부의 내부공간을 형성하는 내측 단부에서 하방으로 소정의 길이만큼 연장 형성되는 밀착부;를 더 포함하는 로봇 청소기.
- 제7항에 있어서,상기 밀착부는,상기 회전축의 외주면과 면접촉하는 것을 특징으로 하는 로봇 청소기.
- 제8항에 있어서,상기 밀착부는,하방으로 연장 형성되는 복수개의 판 스프링으로 구성되는 것을 특징으로 하는 로봇 청소기.
- 제9항에 있어서,상기 밀착부는,복수개의 판 스프링이 소정의 간격으로 이격 배치되는 특징으로 하는 로봇 청소기.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20944210.2A EP4176791B1 (en) | 2020-07-06 | 2020-08-31 | Robot vacuum |
| CN202080102844.0A CN115720501A (zh) | 2020-07-06 | 2020-08-31 | 扫地机器人 |
| US18/014,799 US12396612B2 (en) | 2020-07-06 | 2020-08-31 | Robot vacuum |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020200082656A KR102804684B1 (ko) | 2020-07-06 | 2020-07-06 | 로봇 청소기 |
| KR10-2020-0082656 | 2020-07-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022010029A1 true WO2022010029A1 (ko) | 2022-01-13 |
Family
ID=79341908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2020/011621 Ceased WO2022010029A1 (ko) | 2020-07-06 | 2020-08-31 | 로봇 청소기 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US12396612B2 (ko) |
| EP (1) | EP4176791B1 (ko) |
| KR (1) | KR102804684B1 (ko) |
| CN (1) | CN115720501A (ko) |
| TW (1) | TWI787897B (ko) |
| WO (1) | WO2022010029A1 (ko) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20240013371A (ko) * | 2022-07-22 | 2024-01-30 | 삼성전자주식회사 | 물걸레 청소기에 장착되는 결합 구조물 및 이를 포함하는 청소 부재 |
| JP1779056S (ja) * | 2023-06-09 | 2024-09-03 | 掃除ロボット | |
| KR102616876B1 (ko) * | 2023-08-09 | 2023-12-20 | 설창수 | 급수 구조가 개선된 물걸레 로봇청소기용 쿠션 패드 |
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| US20150157181A1 (en) * | 2010-11-08 | 2015-06-11 | Nilfisk-Advance, Inc. | Random orbit disc scrubber |
| KR101903022B1 (ko) | 2016-07-14 | 2018-10-01 | 엘지전자 주식회사 | 로봇 청소기 |
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| KR20200013535A (ko) * | 2018-07-30 | 2020-02-07 | 엘지전자 주식회사 | 청소기의 노즐 |
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| CN109662659A (zh) * | 2016-12-16 | 2019-04-23 | 云鲸智能科技(东莞)有限公司 | 清洁机器人和清洁机器人系统 |
| KR102021827B1 (ko) | 2018-01-19 | 2019-09-17 | 엘지전자 주식회사 | 청소기 |
| KR102711296B1 (ko) * | 2018-04-30 | 2024-09-30 | 엘지전자 주식회사 | 청소기의 노즐 |
| WO2019212188A1 (ko) * | 2018-04-30 | 2019-11-07 | 엘지전자 주식회사 | 청소기의 노즐 |
| KR102142251B1 (ko) * | 2018-06-27 | 2020-09-14 | 주식회사 넥스원바이오 | 골생체 검침용 의료기구 |
| CN108814461B (zh) | 2018-09-14 | 2025-01-03 | 云鲸智能科技(东莞)有限公司 | 转盘结构和机器人 |
-
2020
- 2020-07-06 KR KR1020200082656A patent/KR102804684B1/ko active Active
- 2020-08-31 EP EP20944210.2A patent/EP4176791B1/en active Active
- 2020-08-31 CN CN202080102844.0A patent/CN115720501A/zh active Pending
- 2020-08-31 US US18/014,799 patent/US12396612B2/en active Active
- 2020-08-31 WO PCT/KR2020/011621 patent/WO2022010029A1/ko not_active Ceased
-
2021
- 2021-07-02 TW TW110124475A patent/TWI787897B/zh active
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| US20150157181A1 (en) * | 2010-11-08 | 2015-06-11 | Nilfisk-Advance, Inc. | Random orbit disc scrubber |
| KR101903022B1 (ko) | 2016-07-14 | 2018-10-01 | 엘지전자 주식회사 | 로봇 청소기 |
| KR20190099407A (ko) * | 2016-12-16 | 2019-08-27 | 윈징 인텔리전스 테크놀로지 (동관) 컴퍼니 리미티드 | 베이스 스테이션 및 청소 로봇 시스템 |
| KR20200012457A (ko) * | 2018-07-27 | 2020-02-05 | 주식회사 디앤티 | 틸트된 듀얼 헤드부를 갖는 물걸레 청소기 |
| KR20200013535A (ko) * | 2018-07-30 | 2020-02-07 | 엘지전자 주식회사 | 청소기의 노즐 |
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| Title |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20240237870A1 (en) | 2024-07-18 |
| TW202206011A (zh) | 2022-02-16 |
| US12396612B2 (en) | 2025-08-26 |
| KR20220005173A (ko) | 2022-01-13 |
| TWI787897B (zh) | 2022-12-21 |
| EP4176791A1 (en) | 2023-05-10 |
| KR102804684B1 (ko) | 2025-05-12 |
| EP4176791A4 (en) | 2024-06-05 |
| CN115720501A (zh) | 2023-02-28 |
| EP4176791B1 (en) | 2025-06-25 |
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