WO2019139448A1 - 세탁기 - Google Patents
세탁기 Download PDFInfo
- Publication number
- WO2019139448A1 WO2019139448A1 PCT/KR2019/000575 KR2019000575W WO2019139448A1 WO 2019139448 A1 WO2019139448 A1 WO 2019139448A1 KR 2019000575 W KR2019000575 W KR 2019000575W WO 2019139448 A1 WO2019139448 A1 WO 2019139448A1
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- WIPO (PCT)
- Prior art keywords
- thread
- washing tub
- threads
- container
- washing
- Prior art date
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Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/02—Rotary receptacles, e.g. drums
- D06F37/12—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a vertical axis
- D06F37/16—Partitions
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry
- D06F23/04—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and rotating or oscillating about a vertical axis
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F31/00—Washing installations comprising an assembly of several washing machines or washing units, e.g. continuous flow assemblies
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
- D06F37/24—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a vertical axis
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/26—Casings; Tubs
- D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
Definitions
- the present invention relates to a washing machine, and more particularly, to a washing machine having two washing machines.
- a washing machine is a device for treating laundry through various operations such as washing, dehydrating and / or drying.
- a washing machine is a device for removing contaminants from laundry (hereinafter also referred to as "cloth”) using water and detergent.
- washing machine equipped with two washing tanks has been released.
- Such a washing machine has a large-capacity washing tank and a small-capacity washing tank, and each washing tank is separated from each other. It is convenient that the washing machines can be used at the same time or at the same time according to the user's needs. Furthermore, if a small amount of washing is required, only a small capacity washing machine can be used, which is very economical.
- Korean Patent Laid-Open No. 10-2015-0089344 discloses a washing machine in which an auxiliary washing tub is coupled to an upper end of a rotary tub.
- the laundry can be separately housed in the rotary tub and the auxiliary washing tub, and the laundry can be separately washed in a state in which water in the tub is not mixed with water in the auxiliary tub.
- the auxiliary drum is provided with one or more protrusions, and the balancer provided at the upper end of the rotary drum is provided with a receiving groove for receiving the protrusion.
- a first problem to be solved by the present invention is that first, a second washing tub is detachably installed in a first washing tub which is permanently installed in a cabinet, a tooth surface is formed in the second washing tub,
- the present invention provides a washing machine in which a tooth groove is formed so that the engagement between the tooth surface and the tooth groove is securely maintained and the second washing tub is rotated without being idle and rotated integrally with the first washing tub.
- the present invention provides a washing machine that prevents vertical movement of the second washing tub while the first washing tub and the second washing tub are integrally rotated.
- multiple threads are formed in the container of the second washing machine, and teeth for engaging with the multiple threads are formed on the balancer of the first washing machine so that the container is easily coupled with the balancer in an arbitrary posture. Even if the container is formed, an undercut due to the multiple threads is not generated.
- a washing machine includes a drum rotatable about a vertical axis and having an opened upper surface, a ring-shaped balancer coupled to an upper end of the drum, a container detachably coupled to the balancer,
- the container includes a container main body having an upper surface opened and receiving laundry therein, a plurality of threads protruding from an outer surface of the container main body and extending upward and downward and arranged in a circumferential direction, The height of each of the plurality of threads from the bone to the mountain gradually increases from the lower side to the upper side, and the balancer is formed with engagement grooves for engaging the plurality of threads at the inner diameter portion constituting the ring type.
- Each of the threads may extend spirally.
- the helical shape may include an inflection point.
- the plurality of threads may comprise a first thread, a second thread and a third thread arranged in a circumferential direction in turn.
- the distance from the peak of the second thread to the bone meeting the second thread with the first thread and the distance from the peak of the second thread to the point at which the second thread meets and interacts with the third thread are different from each other .
- the outer surface of the container body may be inclined so as to gradually approach the vertical axis from the upper side to the lower side.
- the container may further include an annular rim formed at an upper end of the container body.
- the washing machine may further include a washing tub cover coupled to the rim and having an opening for introducing laundry into the container.
- a washing machine comprising: a first washing tub which is rotated about a vertical axis; a second washing tub detachably coupled to the first washing tub and rotated integrally with the first washing tub; A plurality of threads are formed along the circumferential direction in the second washing tub, and a plurality of teeth grooves are formed in the first washing tub along the circumferential direction to engage with the plurality of threads, respectively, May gradually increase from the lower end to the upper end of the thread.
- a plurality of threads are formed on an outer circumferential surface of a container installed in a balancer, and a tooth groove for engaging with the plurality of threads is formed in the balancer.
- the container includes a container body having an upper surface opened and receiving laundry therein, and the plurality of threads protrude from an outer surface of the container body.
- the plurality of threads each have a bottom surface protruding from the outer side surface and forming a plurality of rows.
- a pair of adjacent ones of the plurality of threads is defined as a first thread and a second thread positioned below the first thread, respectively, the second thread causes the lower surface of the second thread to protrude upward and then connecting the first thread to the lower surface of the first thread.
- each of the threads may be inclined so as to be further away from the vertical axis toward the upper side.
- the height of each of the plurality of threads protruding from the outer side surface may gradually decrease from the upper end of the thread to the lower end thereof.
- the outer surface may be inclined so as to gradually approach the vertical axis from the upper side to the lower side.
- the height of the second thread protruding from the outer surface of the container main body is larger than the height of the outer surface of the container main body when the container body is viewed from a horizontal direction so that the height at which the first thread and the second thread protrude from the outer surface, 1 thread may be lower than the projected height.
- the second thread may be inclined so that the outer circumferential surface connecting the lower surface of the first thread and the lower surface of the second thread is gradually closer to the vertical axis from the upper side to the lower side.
- the first and second washing tanks can be stably and integrally rotated.
- a twisted structure thread can be formed on the outer surface of the container body without undercut.
- FIG. 1 is a side sectional view of a washing machine according to an embodiment of the present invention.
- FIG. 2 is a perspective view of the second washing tub.
- FIG 3 is an exploded perspective view of the second washing tub.
- FIG. 4 is a perspective view showing the washing tub cover.
- FIG 5 is a perspective view showing a state in which the second washing tub is installed in the balancer.
- Figure 6 is a top view of the assembly shown in Figure 5;
- FIG. 7 is a cross-sectional view taken along the line VII-VII in FIG. 6, showing a state in which the locking member is in the first position.
- Figure 9 is a top view of the top cover viewed from above.
- Fig. 11 shows a state in which a locker is installed on the upper cover. Particularly, a locker is disposed between a pair of partition walls.
- FIG. 12 is a cross-sectional view taken along line XII-XII in FIG.
- Fig. 13 is an enlarged view of a part of Fig. 7, wherein (a) shows a state in which the locking member is in the first position, and Fig. 13 (b) shows a state in which the locking member is in the second position;
- Fig. 14 is an enlarged view of a portion A in Fig.
- 15 and 16 are side views of the container.
- FIG. 17 is an enlarged view of a portion A in Fig.
- FIG. 18 is an enlarged view of a portion of a container according to another embodiment of the present invention.
- Fig. 19 is a view taken along the direction B shown in Fig.
- FIG. 1 is a side sectional view of a washing machine according to an embodiment of the present invention.
- 2 is a perspective view of the second washing tub.
- 3 is an exploded perspective view of the second washing tub.
- 4 is a perspective view showing the washing tub cover.
- 5 is a perspective view showing a state in which the second washing tub is installed in the balancer.
- Figure 6 is a top view of the assembly shown in Figure 5;
- FIG. 7 is a cross-sectional view taken along the line VII-VII in FIG. 6, showing a state in which the locking member is in the first position.
- 8 is a cross-sectional view taken along line VIII-VIII of FIG.
- Figure 9 is a top view of the top cover viewed from above. 10 shows a state in which the upper cover and the container are separated.
- FIG. 11 shows a state in which a locker is installed on the upper cover. Particularly, a locker is disposed between a pair of partition walls.
- 12 is a cross-sectional view taken along line XII-XII in FIG.
- Fig. 13 is an enlarged view of a part of Fig. 7, wherein (a) shows a state in which the locking member is in the first position, and Fig. 13 (b) shows a state in which the locking member is in the second position;
- Fig. 14 is an enlarged view of a portion A in Fig. 15 is a side view of the container.
- the cabinet 2 forms an outer appearance of the washing machine, and forms a space in which the water storage tank 4 is accommodated.
- the cabinet 2 is supported by a flat cabinet base 5, and includes a front surface, a left surface, a right surface, and a rear surface, and an upper surface is opened.
- the top cover 3 may be coupled to the open upper surface of the cabinet 2. [ The top cover 3 may be provided with an opening for loading and unloading the laundry (or " cloth "). A door (not shown) for opening and closing the opening may be rotatably coupled to the top cover 3.
- the water storage tank 4 is for storing water and can be suspended in the cabinet 2 by the support rod 15.
- the support rods 15 may be provided at four corners of the cabinet 2, one end of each support rod 15 is pivotally connected to the top cover 3, Is connected to the water storage tank (4) by the water supply pipe (27).
- the water storage tank 4 is opened on the upper surface, and the water storage tank cover 14 is provided on the opened upper surface.
- the reservoir cover (14) is formed in the form of a ring having a substantially circular opening at its center, and laundry is introduced through the opening.
- a first washing tub 6 accommodating laundry and rotated around a vertical axis may be disposed.
- the vertical axis is substantially perpendicular to the ground.
- the vertical axis may be accurately aligned on a line perpendicular to the paper surface, but may be inclined at an angle with respect to the vertical line.
- a plurality of through holes 6h through which water is passed is formed in the first washing tub 6 and water is exchanged between the first washing tub 6 and the water storage tank 4 through the through holes 6h.
- the first washing tub 6 may include a drum 6a having an upper opening and a through hole 6h formed therein and a ring balancer 20 coupled to the upper portion of the drum 6a.
- the bottom surface of the drum 6a can be connected to the rotary shaft of the driving unit 8 by the hub 7.
- a pulsator (9) can be rotatably provided on the inner lower side of the first washing tub (6).
- the pulsator 9 may include a plurality of upwardly projecting radial blades. When the pulsator 9 is rotated, water flows by the wings.
- the balancer 20 compensates for the eccentricity caused when the drum 6a rotates.
- the balancer 20 is engaged with the upper end of the drum 6a.
- the balancer 20 may include a balancer body 21 forming ring-shaped cavities 20h1, 20h2. Fluids (e.g., brine) or a plurality of weights (e.g., metal spheres) may be inserted into cavities 20h1, 20h2.
- the annular cavities 20h1 and 20h2 may have a plurality of concentric circles having different diameters.
- the second washing tub 10 can be inserted into a space defined by the ring-shaped balancer 20 (or a substantially circular opening), and can be supported by the balancer 20 in this inserted state.
- the second washing tank 10 includes a container 30 containing laundry and a washing tub cover 60 covering the container 30.
- the container 30 is filled with laundry and water and has an upper surface opened, and at least a part of the opened upper surface is covered with the washing tub cover 60.
- the container 30 may be made of a transparent material so that the laundry contained in the inside can be seen from the outside.
- a ring-shaped support portion 22 for supporting the container 30 may be formed on the inner diameter portion of the balancer main body 21 (a portion forming an inner circle among the two circles constituting the ring type when viewed from above).
- a plurality of engagement grooves 22c (see Fig. 8) extending in the up-and-down direction are arranged in the support portion 22 along the circumferential direction. Each of the engagement grooves 22c may be in the form of a spiral.
- a plurality of threads 33 are formed in the second washing tub 10 along the circumferential direction.
- the threads 33 are projections formed on the outer surface of the container 30 and are engaged with the engagement grooves 22c formed in the support portion 22, respectively.
- the thread 33 protrudes from the outer surface of the container body 31 (see Fig. 7) and extends vertically upwards and downwards, and a plurality of the threads 33 are arranged along the circumferential direction.
- the fitting groove 22c extends vertically in a shape corresponding to the thread 33.
- Thread 33 may be helical.
- the helix may comprise an inflection point (F).
- the engagement groove 22c may also be in the form of a thread corresponding to the thread 33.
- the threads 33 constitute a kind of helical gear (or a helical tooth) and are engaged with the engagement grooves 22c formed in the seating portion 33 of the balancer 20.
- the coupling between the balancer 20 and the container 30 is also a kind of screw coupling, so that the coupling between the second washing tub 10 and the first washing tub 6 is firmly maintained.
- the second washing tub 10 can be fixed without being lowered by the restraining force (for example, a frictional force acting between mutually engaged surfaces) of the coupling between the thread 33 and the latch groove 22c.
- the structure in which the thread depth? H gradually increases toward the upper side is preferably formed in the entire region from the lower end to the upper end of the thread 33, but this is not necessarily the case.
- the thread 33 may have a structure in which the thread depth? H gradually increases toward the upper side only at a portion where the thread 33 is engaged with the engagement groove 22c.
- the plurality of threads 33 may include a first thread 331, a second thread 332, and a third thread 333 which are arranged in order in the circumferential direction.
- the first and second threads 331 and 332 meet and form the first trough R1
- the second thread 332 and the third thread 333 meet and form the second trough (R2)
- the first distance L1 from the mountain P to the first trough R2 of the second thread 332 and the distance from the mountain P of the second thread 332 to the second trough R3 may be different from each other.
- the first tooth L1 extending from the mountain P of the second thread 332 to the first trough R1 332a may have a greater inclination than the second tooth surface 332b extending from the apex P of the second thread 332 to the second trough R2.
- the inclination is an angle between the tooth surfaces 332a and 332b and the tangent plane of the circumference C1.
- the inclination of the first tooth surface 332a is defined based on the tangent plane on the first trough R1
- the inclination of the tooth surface 332b is defined based on the tangent plane on the second trough R3.
- the outer surface of the container body 31 can be inclined so as to gradually approach the vertical axis O from the upper side to the lower side.
- the lower ends of the threads 33 are engaged with the lower ends of the engagement grooves 22c in the process of attaching the second washing tub 10 to the balancer 20 as well as the injection molding can be easily extracted from the mold in the injection process of the container body 31.
- [ (Or the meshing surface) of the balancer 20 so as to pass through the opening in the center of the balancer 20.
- At least a part of the thread 33 is positioned below the support portion 22 without being engaged with the engagement groove 22c in a state where the second washing tub 10 is installed.
- And is detachably attached to the first washing tub (6). That is, the second washing tub 10 is detachably coupled to the first washing tub 6.
- the user can input the first laundry into the first washing tub 6 or install the second washing tub 10 into the second washing tub 10 while the second washing tub 10 is not installed have.
- a cabinet 2 may include a first washing tub 6 and a driving unit 8 for providing power for rotating the pulsator 9.
- the driving unit 8 is disposed below the water storage tank 4 and can be suspended in the cabinet 2 in a state of being coupled to the bottom surface of the water storage tank 4.
- the rotating shaft of the driving unit 8 is constantly connected to the pulsator 9 and can be connected or disconnected from the first washing tub 6 according to the switching operation of the clutch (not shown).
- the pulsator 9 and the first washing tub 6 are integrally rotated when the driving unit 8 is operated while the rotating shaft of the driving unit 8 is connected to the first washing tub 6, When the first washing tub 6 is operated in a state of being disconnected from (or separated from) the first washing tub 6, only the pulsator 9 is rotated in the stopped state.
- the driving unit 8 may include a washing motor capable of speed control.
- the washing motor may be an inverter direct drive motor.
- the control unit (not shown) may include a proportional-integral controller (PI controller), a proportional-integral-differential controller (PID controller), and the like.
- PI controller proportional-integral controller
- PID controller proportional-integral-differential controller
- the controller receives an output value (e.g., an output current) of the washing motor as an input, and based on the output value, determines whether the rotational speed (or rotational speed) of the washing motor follows a predetermined target rotational speed Can be controlled.
- control unit can control not only the washing motor but also the entire operation of the washing machine, and that the control of each of the components described below is performed by the control unit.
- the washing machine may include at least one water supply pipe 11 for guiding water supplied from an external water source such as a faucet.
- the at least one water supply pipe 11 may include a cold water pipe (not shown) for receiving cold water from an external water source and a hot water pipe (not shown) for receiving hot water.
- a water supply valve 13 for interrupting the water supply pipe 11 may be provided.
- a plurality of water supply pipes 11 are provided, a plurality of water supply valves 13 are also provided so that the water supply pipes 11 can be interrupted by water supply valves 13, respectively.
- water supply valve 13 is opened under the control of the control unit, water is supplied to the main dispenser 16 through the water supply pipe 11 corresponding to the opened water supply valve 13.
- the main dispenser 16 supplies the additive acting on the laundry to the water storage tank 4 together with the water supplied through the water supply pipe 11.
- the additives supplied by the main dispenser 16 include laundry detergents, fabric softeners, bleaching agents and the like.
- the washing machine may further include a drain valve 19a for discharging water from the water reservoir 4 and a drain valve 17 for interrupting the drain valve 19a.
- the drainage bellows 19a can be connected to the pump 18. When the drain valve 17 is opened, water is supplied to the pump 18 through the drain valve 19a. The water thus introduced into the pump 18 is discharged to the outside of the washing machine through the drain pipe 19b when the pump 18 is operated.
- a charging port 60h is formed so that laundry can be charged into the container 30.
- the washing tub cover 60 may include a lower cover 40 and an upper cover 50 coupled to the upper side of the lower cover 40.
- the lower cover 40 can be engaged with the upper end of the container 30.
- the lower cover 40 and the container 30 are each made of synthetic resin and are preferably connected by welding, more preferably by heat welding, but are not necessarily limited thereto.
- the upper cover 50 may be detachably coupled to the lower cover 40.
- a first opening 40h is formed in the lower cover 40 and a second opening 50h is formed in the upper cover 50 to communicate with the first opening 40h and to form a charging port 60h.
- a space in which a locker 80, a check valve 91, a flow path FP and the like are disposed is provided between the upper cover 50 and the lower cover 40. If necessary, The locker 80 and the check valve 91 can be maintained or repaired after the lower cover 40 is separated from the lower cover 40 and the flow path FP can be cleaned.
- the washing tub cover 60 may be provided with a water supply port 51h through which water discharged from the main dispenser 16 flows.
- the washing tub cover 60 is provided with a sub dispenser 70 for containing additives such as a detergent, a bleaching agent or a fabric softening agent so that water supplied to the water supply port 51h flows through the sub- 30).
- the additive is preferably liquid so that it can be smoothly discharged through the siphon tube 724 described later.
- Water supply through the water supply port 51h may be performed a plurality of times. In this case, since the additive is completely discharged through the siphon tube 724 to be described later at the time of the first water supply, the water (or water) in which the additive is not dissolved through the sub-dispenser 70 , Enemy water) is supplied.
- the washing tub cover 60 is provided with a flow path FP (see FIG. 12) for guiding the water flow introduced through the inlet 452h.
- the washing tub cover 60 may include a nozzle 62 for discharging the water flow guided along the flow path FP to the outside of the washing tub cover 60.
- the nozzle 62 can be inserted and fixed into the discharge port 431 (see FIG. 12) formed in the lower cover 40.
- the nozzle 62 may have a horizontally elongated slit-shaped outlet.
- the outlet is open toward the lower side of the reservoir cover (14).
- the second washing tub 10 is rotated at a high speed so that the water discharged through the nozzle 62 can be guided along the bottom surface of the reservoir cover 14.
- the nozzle 62 is positioned higher than the balancer 20 (i.e., the upper side of the balancer 20 is exposed) So that the water injected through the nozzle 62 can reach the water storage tank 4 without interfering with the balancer 20.
- the inner surface of the container 30 may include a vane 35 extending vertically.
- the vane 35 protrudes from the inner surface of the container 30 and may be manufactured as a separate component from the container 30 and installed in the container 30.
- the water flow generated by the rotation of the second washing tank 10 is raised by the collision with the vane 35 and then falls to the center of the container 30.
- a plurality of vanes 35 may be provided, and preferably, a plurality of vanes 35 are disposed symmetrically with respect to the rotational center of the second washing tank 10. In the embodiment, a pair of vanes 35 is provided, but the number of vanes 35 is not limited to this.
- the washing tub cover 60 may include a handle 61 formed around the inlet port 60h. When the washing tub cover 60 is viewed from the top downward, the inlet 60h is located at one side with respect to the handle 61 and the water inlet 51h is located at the other side.
- the handle 61 may be provided on both sides of the inlet 60h and the water inlet 51h may be provided on the other side of each handle 61, respectively.
- the sub-dispenser 70 may be provided on both sides of the washing tub cover 60, respectively.
- the laundry detergent or the bleaching agent may be supplied through one of the pair of sub-dispensers 70, and the fabric softener may be supplied through the other.
- the sub-dispenser 70 may be provided in the lower cover 40.
- the sub-dispenser 70 may be disposed at a position corresponding to the pair of water supply ports 51h, respectively.
- a pair of sub-dispensers 70 are divided into a first sub-dispenser 70 (1) and a second sub-dispenser 70 (2).
- the water discharged from the main dispenser 16 is selectively supplied to the first sub-dispenser 70 (1) or the second dispenser 70 (2) in accordance with the rotational position (or rotation angle) Lt; / RTI >
- the rotational position (or rotational angle) of the rotor 10 can be controlled.
- Each of the sub-dispensers 70 includes a dispenser housing 71, a drawer 72 that is accommodated in the dispenser housing 71 so as to be drawn out and has an opened upper surface and a drawer 72 that covers the opened upper surface of the drawer 72 And a lower cover (73).
- the drawer cover (73) can be releasably coupled to the drawer (72).
- An opening 73h through which water discharged from the main dispenser 16 passes is formed in the drawer cover 73 so that water having passed through the opening 73h is supplied into the drawer 72.
- the upper cover 50 may include a flow guide 52 for guiding the water introduced through the inlet port 51h to the sub-dispenser 70.
- the flow guide 52 forms an inclined surface so that water is guided downward, and water guided along the inclined surface is guided to the opening 73h of the drawer cover 73.
- the upper housing 50 may be provided with a plate 55 fixed to the upper side of the sub-dispenser 70.
- the plate 55 can be attached to and detached from the upper housing 50.
- the plate 55 forms an interval 55h between the lower end of the flow guide 52 and the water guided along the flow guide 52 passes through the gap 55h and is guided to the opening of the drawer cover 73. [ (73h).
- the dispenser housing 71 may be coupled to the lower cover 40 by providing a space in which the drawer 72 is received.
- the dispenser housing 71 can be fixed to the lower cover 40 by fastening members such as screws or bolts.
- the drawer (72) is a container whose upper surface is opened, and the additive can be received in the drawer (72).
- the drawer 72 is engaged with the dispenser housing 71 and this engagement allows the drawer 72 to be inserted into the dispenser housing 71 or to be withdrawn from the dispenser housing 71.
- the drawer 72 in the embodiment is provided in a pivotable manner with respect to the dispenser housing 71 and specifically hinged to the dispenser housing 71 but need not necessarily be limited to this, It is also possible to install it in such a manner that it can slide in the linear direction with respect to the housing 71.
- the drawer 72 may include a siphon tube 724 protruding upward from the bottom, and the drawer cover 73 may include a siphon cap 724 covering the siphon tube 724, 732).
- the outlet of the siphon tube 724 is formed at the bottom of the drawer 72 and the siphon cap 73 forms an annular flow path with the outer peripheral surface of the siphon tube 724 in the transverse section.
- Such a structure is suitable for supplying a liquid phase additive.
- the outer shape of the second washing tub 10 is divided into a first section S1 in contact with the support section 22 of the balancer 20 and a second section S1 in which the support section 22 is separated from the second section S1, And a section S2.
- the first section S1 is located on the first axis (line VII-VII) passing through the vertical axis O and the second section S2 is located on the second axis II passing through the vertical axis O and perpendicular to the first axis And may be located on the axis Y.
- the first section S1 may be formed on both sides to be symmetrical with respect to the second axis Y and the second section S2 may be formed on both sides to be symmetrical with respect to the first axis.
- the water discharged from the main dispenser 16 flows through the second section S2 and the balancer 20 when the second washing tank 10 is rotated and aligned to the first rotational position under the control of the driving section 8 of the control section.
- the water can be supplied into the container 30 through the gap formed between the inner circumferential surfaces of the container 30.
- the water discharged from the main dispenser 16 flows into the water supply port 51h To the sub-dispenser 70.
- the second rotational position is a position where the first washing tub 6 is rotated 90 degrees from the first rotational position.
- the angle between the second rotation position and the first rotation position may be changed.
- the control unit controls the rotational angle of the first washing tub 6 or the rotational position of the first washing tub 6 based on the speed of the washing motor It is possible. Since the second washing tub 10 is rotated integrally with the first washing tub 6, the rotation angle or the rotating position of the first washing tub 6 is controlled by controlling the rotation angle or the rotating position of the second washing tub 10 It is also.
- a first hall sensor (not shown) may be provided in the reservoir cover 14, and a first magnet may be provided in the second washing tub 10.
- the first hall sensor may sense the magnetic field formed by the first magnet, and send signals to the control unit based on the sensed magnetic field.
- the control unit can determine the rotational speed, the rotational position (or the position of the first magnet), the rotational angle, and the like of the second washing tub 10 based on the received signal,
- the washing motor can be controlled to be aligned with the first rotation position or the second rotation position.
- a second magnet may be provided on the rotor of the washing motor, and a second hall sensor for sensing a magnetic field generated by the second magnet may be provided in a fixed structure (for example, a water tank 4 (I.e., the bottom surface of the base plate).
- the plurality of second magnets may be disposed along the circumference of the rotor.
- the control unit can control the washing motor based on the signal output from the second hall sensor. At this time, by considering the signals output from the first hall sensor, The first rotation position or the second rotation position.
- the rotation angle of the rotor can be sensed without a separate sensor. That is, the controller may sense the rotation angle of the rotor in a sensorless manner. For example, it is possible to estimate the position of the rotor of the washing motor based on an output current detected while a current of a certain frequency flows through the washing motor, after causing a phase current of a constant frequency to flow to the washing motor.
- a sensorless system corresponds to a known technology, and a detailed description thereof will be omitted.
- the control unit controls the driving unit 8 in accordance with a predetermined algorithm to perform washing. Thereafter, the water used for washing must be discharged from the second washing tank 10, and this drainage is performed by using the centrifugal force induced by the high-speed rotation of the second washing tank 10.
- the lower cover 40 is provided with an inlet port 452h through which water flows upward in the container 30 due to the centrifugal force when the second washing tank 10 is rotated, A discharge port 431 for discharging the water introduced through the discharge port 431 is formed. 12, the nozzle 62 may be inserted into the discharge port 431, as shown in FIG.
- the lower cover 40 may include a bottom portion 452 formed with an inlet port 452h and a side wall portion 43a extending upward from the bottom portion 452 and provided with a discharge port 431.
- the lower cover 40 includes a first upper surface portion 41 formed with a first opening portion 40h and a first inner wall portion 42 extending downward from the first upper surface portion 41 around the first opening portion 40h And an outer wall portion 43 extending along the outer periphery of the first upper surface portion 41.
- the first upper surface portion 41 can be partially recessed to reach the groove portion 45.
- the bottom portion 452 constitutes the bottom surface of the groove portion 45.
- the side wall portion 43a belongs to the outer wall portion 43 and constitutes the outer side inner peripheral surface 451 of the groove portion 45.
- the first inner wall portion 42 may have an opening 42h for installing the dispenser 70 therein.
- the lower cover 40 may include an inner handle 410 formed between the groove 45 and the first opening 40h.
- One side of the inner handle 410 may be formed by a first inner wall portion 42, in which case one side defines the first opening 40h.
- the opening 42h for installing the dispenser 70 is formed on the one side surface and the opening 42h is formed up to a height higher than the dispenser 70 so that between the dispenser 70 and the inner handle 410, (61), a space through which the user's finger passes is formed.
- the groove 45 has an inner inner circumferential surface 453 formed at a position spaced from the outer circumferential surface 451 in the radial direction.
- the inner inner circumferential surface 453 extends upward from the bottom of the groove 45 at the opposite side of the outer inner circumferential surface 451.
- Both ends of the inner inner circumferential surface 453 are connected to the outer inner circumferential surface 451 by the inward grooves 454 and 455 respectively and thus the inner circumferential surface 453, the first groove inner side surface 454,
- the inner side surrounded by the inner peripheral surface 455 and the outer side inner peripheral surface 451 is defined by the groove 45.
- An inclined surface 456 may extend from the upper end of the inner inner peripheral surface 453 inward along the radial direction.
- the inclined surface 456 is preferably in contact with the bottom surface of the flow guide 52 so that water does not penetrate into the gap between the inclined surface 456 and the flow guide 52 of the upper cover 50 described later.
- the inner inner circumferential surface 453 is connected to the outer wall portion 43 by a pair of partition walls 47, 48.
- the locking member 81 to be described later is moved in the unlocking position (that is, the position of the locking member 81 when the second washing tub 10 is stopped), preferably by the restoring force of the spring 82, 453, respectively.
- the upper cover 50 includes a second upper surface portion 51 formed with a second opening portion 50h and a water supply port 51h and a second upper surface portion 51 extending downward from the second upper surface portion 51 around the second opening portion 50h. 2 inner wall portion 53 as shown in FIG.
- the water supply port 51h is located radially outwardly of the second opening 50h.
- the second upper surface portion 51 may include an outer handle 510 formed between the water supply port 51h and the second opening 50h.
- the outer handle 510 includes a handle upper surface portion 511 belonging to the second upper surface portion 51 and a second lower surface portion 511 extending downward from the upper surface portion 511 of the handle 511 around the second opening portion 50h, And a second handle side portion 513 extending downward from the handle upper surface portion 511 around the water supply port 51h. That is, a "C" -shaped groove whose lower side is opened is formed by the handle upper surface portion 511, the first handle side surface portion 512, and the second handle side surface portion 513.
- the inner handle 410 is inserted into the "C"
- the user can grasp both the inner handle 410 and the outer handle 510 so that the upper cover 50 and the lower cover 40 are not separated from each other when the second washing tub 10 is lifted.
- a hook (not shown) is formed on one of the inner knob 410 and the outer knob 510 so that the inner knob 410 and the outer knob 510 are more firmly engaged with each other.
- a groove (not shown) may be formed.
- An opening 53h may be formed in the second inner wall portion 53 of the upper cover 50 at a position corresponding to the opening 42h of the lower cover 40.
- the first handle side portion 512 of the outer handle 510 can be formed by the second inner wall portion 53 and in this case the first handle side portion 512 defines the second opening 50h.
- the height of the opening 53h is determined by the lower end of the first handle side portion 512.
- the lower end of the first handle side portion 512 may be located at substantially the same height as the lower end of the second handle side portion 513.
- the upper cover 50 can extend from the section around the water supply port 51h, in particular, on the opposite side of the second handle side surface portion 513 from the flow guide 52. That is, the flow guide 52 extends from the second upper surface portion 51 at a position radially outwardly spaced from the second handle side surface portion 513. The flow guide 52 gradually extends downward from the second upper surface portion 51 toward the inner side along the radial direction.
- a flow path FP extending from the inlet port 452h to the outlet port 431 may be formed in the washing tub cover 60.
- the water flow developed toward the outside along the radial direction due to the centrifugal force rises along the inner surface of the container 30 in the container 30.
- the upward flow of water flows into the flow path FP through the inlet port 452h and then through the outlet port 431.
- the inlet port 452h and the outlet port 431 are formed in the lower cover 40 and the upper cover 50 is coupled with the lower cover 40 to define the flow path FP.
- the flow path FP can be defined as a region defined by the bottom portion 452 of the lower cover 40, the outer wall portion 43 and the first inner wall portion 42.
- the water flowing into the flow path FP through the inlet port 452h rises along the inner surface of the side wall portion 43a (i.e., the outer peripheral surface 451) and is discharged through the outlet port 431.
- the remaining water that can not be discharged through the discharge port 431 can not rise further by the bottom surface of the upper cover 50.
- the capacity of the flow path FP is sufficient, most of the water in the flow path FP is in contact with the outer inner peripheral surface 451 due to the centrifugal force, so that water flow to the inner inner peripheral surface 453 is substantially not generated. Therefore, depending on the embodiment, the inner inner circumferential surface 453 may not contribute to the role of defining the flow path FP.
- the lower cover 40 may further include a check valve 91 for opening and closing the inlet 452h.
- the check valve 91 may be configured to be opened or closed by a centrifugal force generated by rotation of the second washing tub 10, or may be opened and closed by a water pressure.
- the check valve 91 may be disposed in the groove 45.
- the check valve 91 is in close contact with the upper surface of the bottom portion 452 (that is, the bottom surface of the groove portion 45), the outer end portion 91a is fixed to the bottom portion 452,
- the inner end 91b positioned on the inner side along the radial direction from the outer end 91a can be pivoted on the basis of the outer end 91a.
- a rib (not shown) for pressing the upper surface of the check valve 91 may protrude from the bottom surface of the upper cover 50 so that the outer end 91a is fixed.
- the check valve 91 may be made of a material having elasticity such as rubber.
- the check valve 91 is pivoted by the moment induced by the pressure of the water flow passing through the inlet port 452h and the outer end 91a by the centrifugal force to open the inlet port 452h, When the washing tub 10 is stopped or decelerated, the washing tub 10 is returned to its home position by the restoring force of its own weight and material, and the inlet 452h is closed.
- the outer end 91a is rotatably connected to the bottom portion 452 so that the outer end 91 and the bottom portion 452 are connected to each other,
- the check valve 91 may be turned.
- the check valve 91 may not be made of a material having elasticity.
- the washing course using the second washing tub 10 may include a washing cycle and a drain cycle.
- the rotational speed of the second washing tank 10 in the washing cycle is preferably such that the water flow in the container 30 can not reach the inlet port 452h.
- the rotation speed of the second washing tub 10 may be configured to be changed according to the water level in the container 30.
- a predetermined amount that is, the amount of input to guide the user through the product manual or the like
- the control unit controls the second washing tub 10 in the washing cycle so that the rotational speed of the second washing tub 10 when the water flow starts to reach the inlet 452h can be determined experimentally and does not exceed the determined rotational speed, Can be controlled.
- the water pressure acting through the inlet port 452h can be prevented from exceeding the moment acting in the closing direction by the self weight of the check valve 91
- the rotational speed of the second washing tub 10 at the time of the washing cycle can be controlled within a range not reaching the predetermined value.
- a washing machine according to an embodiment of the present invention is provided in a second washing tub 10, and the first washing tub 10 is rotated from a first washing tub 6 And a locker (80) for fixing to prevent detachment.
- the locker 80 may be provided on the lower cover 40.
- the locker (80) includes a locking member (81) and an elastic member (82).
- the locking member 81 is located at a first position (refer to FIG. 13 (a), hereinafter referred to as "unlock position") in a state where the second washing tub 10 is stopped, and the second washing tub 10 And is moved from the first position to the second position (refer to FIG. 13 (b), hereinafter referred to as "lock position") by centrifugal force.
- the lock position is located outside the unlock position along the radial direction.
- the locking member 81 is engaged with the first washing tub 6 at the lock position to fix the second washing tub 10 to the first washing tub 6.
- a straight line connecting the lock position from the unlock position i.e., a line of the locking member 81 may cross the first section S1 (see FIG. 6).
- the balancer 20 may be formed with a locking groove 22r into which the locking member 81 is inserted at the locking position.
- the locking groove 22r may be formed in the inner diameter portion of the balancer main body 21.
- the second washing tub 10 since the upward movement of the second washing tub 10 is restrained, there is no problem that the second washing tub 10 impacts the top cover 3 or the door (not shown). Even when the second washing tub 10 is rotated at a high speed (for example, a dewatering stroke), it is possible to prevent breakage of the apparatus and prevent a safety accident.
- a high speed for example, a dewatering stroke
- the elastic member 82 is elastically deformed when the locking member 81 is in the lock position and is restored to its original position when the rotation of the second washing tub 10 is stopped to return the locking member 81 to the unlock position.
- the locking member 81 is returned to the unlock position by the restoring force of the elastic member 82, whereby the lock is automatically released.
- the lock is automatically released, so that the user can easily lift the second washing tub 10 without having to perform any other operation for releasing the lock.
- the elastic member 82 may be a coil spring that is compressed when the locking member 81 is moved from the unlocked position to the locked position.
- the locking member 81 may include a spring mount 81b that is resiliently biased by a spring 82 and a head 81a that protrudes from the spring mount 81b.
- the spring mount 81b is formed with spring fixing projections 81c and 81d at respective portions protruding on both sides with respect to the head 81a and a pair of springs 82 are fixed to the fixing projections 81c and 81d Respectively. That is, one end of the spring 82 can be positioned on the inner side surface (i.e., on the outer peripheral surface 451) of the outer wall portion 43 and the other end can seat the spring mount 81b.
- a pair of projections 435a and 435b are projected from the projections 451 and 451 so that one end of the spring 82 can be fitted to each of the projections 435a and 435b.
- the locking member 81 may be in contact with the inner inner peripheral surface 453 of the groove 45 by the restoring force of the spring 82 at the unlock position. In the unlocked position, the locking member 81 can be stably maintained without shaking.
- the lower cover 40 may have a first penetrating portion 432 formed in the outer wall portion 43.
- the head 81a may be located in the first penetration portion 432. [ Preferably, the head 81a is always positioned within the first through-hole 432, even if the locking member 81 is located at any point between the unlock position and the lock position.
- the container 30 includes a container body 31 and a rim portion 32 (see Figs. 2 and 12) formed at the upper end of the container body 31 and surrounding the outer wall portion 43 from the outside of the lower cover 40, ).
- the rim portion 32 may be formed along the periphery of the opening of the upper end of the container body 31, that is, the upper surface of the container 30.
- the rim portion 32 may be formed with a second penetration portion 32h communicating with the first penetration portion 432. [ The head 81a passes through the second penetrating portion 32h and protrudes outside the second washing tub 10.
- the head 81a has an insertion portion 811 that is inserted into the locking groove 22r and a portion that connects the insertion portion 811 and the spring mount 81b, And a latching portion 812 having a cross-sectional area larger than the passage area of the portion 432.
- the insertion portion 811 can pass through the first penetration portion 432, but the engagement portion 812 does not.
- the head 81a has an arbitrary section taken in a plane orthogonal to the longitudinal direction (i.e., the copper line of the locking member 81) is substantially rectangular.
- the first penetrating portion 432 is formed so that the outlet located on the outer surface of the outer wall portion 43 corresponds to the end surface of the insertion portion 811 and the inlet located on the inner surface of the outer wall portion 43 And may be formed so as to correspond to the end surface of the latching portion 812.
- the latching portion 812 may include a first inclined surface 812a (see FIG. 13) that gradually descends from the portion connected to the spring mount 81b toward the insertion portion 811 side, and the second inclined surface 432a may be formed between the inlet of the first penetration portion 432 and the outlet.
- a pair of partition walls (47, 48) are formed in the lower cover (40).
- a space SP in which the locker 80 is accommodated is provided between the pair of partition walls 47, The space SP is separated from the flow path FP by the pair of partition walls 47 and 48.
- Each of the pair of partition walls 47, 48 may extend from the bottom portion 452 to the outer wall portion 43.
- the pair of partition walls 47 and 48 are connected to the inner inner peripheral surface 453, respectively. That is, the space SP is surrounded by the outer wall portion 43, the pair of partition walls 47 and 48 and the inner inner peripheral surface 453, and the upper surface is opened, It is closed by.
- the upper ends of the pair of partition walls 47 and 48 are in close contact with the bottom surface of the upper cover 50, so that water in the flow path FP is prevented from flowing into the space SP beyond the partition walls 47 and 48 do.
- the bottom surface of the flow guide 52 can be brought into close contact with the upper ends of the pair of partition walls 47 and 48.
- a sealer (not shown) may be provided between the upper ends of the pair of partition walls 47 and 48 and the bottom surface of the upper cover 50 so that the airtightness between the partition walls 47 and 48 and the upper cover 50 can be more reliably maintained.
- the sealer is made of a soft material such as rubber and can be interposed between the pair of partition walls 47 and 48 and the bottom surface of the upper cover 50. In this case, the one surface is pressed by the partition walls 47 and 48, and the opposite surface is pressed by the bottom surface of the upper cover 50.
- FIG. 16 is a side view of the container. 17 is an enlarged view of a portion A in Fig. 18 is an enlarged view of a portion of a container according to another embodiment of the present invention. Fig. 19 is a view taken along the direction B shown in Fig. 20 is an enlarged view of a portion of the container according to the comparative example.
- a plurality of threads 33 protrude from the outer surface of the container body 31. As shown in Fig. These threads (33) extend along a spiral or oblique line to form a double structure.
- a pair of threads 33 (1) and 33 (2) that are adjacent to each other among the plurality of threads 33 are selected and defined as the first thread 33 (1) And the other thread is defined as the second thread 33 (2).
- the second thread 33 (2) is connected to the lower surface 331a of the first thread 33 (1) by upwardly projecting the lower surface 332a of the second thread 33 (2) . That is, the second thread 33 (2) connects the lower surface 331a of the first thread 33 (1) and the lower surface 332a of the second thread 33 (2).
- the lower surface 331a of the first thread 33 (1) is referred to as a first lower surface 331a
- the lower surface 332a of the second thread 33 (2) is referred to as a second lower surface 332a.
- the lower surface of the thread 33 (2) on the lower side is extruded so as to be connected to the lower surface of the thread 33 (1) ), 33 (2).
- the outer surface of the container body 31 may be inclined so as to gradually approach the vertical axis O from the upper side to the lower side.
- the angle formed by the outer surface of the container body 31 with the vertical is indicated by? 1 in FIG.
- the lower surfaces 331a, 332a, 333a and 334a of the respective threads 33 (1), 33 (2), 33 (3) and 33 (4) are inclined .
- the angle of the lower surface of the thread 33 with the horizontal is indicated by? 2 in FIG.
- the outer circumferential surface of the second thread 33 (2) is defined as a curved surface extending from the periphery of the first lower surface 331a to the periphery of the second lower surface 332a.
- the outer circumferential surface may be inclined so as to gradually approach the vertical axis O from the upper side to the lower side.
- the angle formed by the outer peripheral surface with the vertical is indicated by? 3 in FIG. In particular, the angle formed between the outer peripheral surface and the vertical is such that the injection mold can be easily taken out from the lower mold.
- each thread 33 protruded from the outer surface of the container body 31 may gradually decrease from the upper end of the thread 33 to the lower end thereof. That is, in FIG. 19, the height at the top of each thread 33 is h, but it becomes gradually lower toward the lower end.
- the height h2 at which the first thread 33 (2) protrudes may be lower than the height h1 at which the first thread 33 (1) protrudes from the outer side (h1> h2). This relationship can be applied to all the adjacent threads. (h1 > h2 > h3 > h4 ).
- each thread 33 Since the height of the thread 33 is lowered toward the lower end as described above, the thread 33 and the engagement groove 22c are firmly engaged with each other because each thread 33 has the same shape as the wedge.
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Abstract
Description
Claims (15)
- 수직한 축을 중심으로 회전되고, 상면이 개방된 드럼;상기 드럼의 상단에 결합되는 링형의 밸런서; 및상기 밸런서에 분리 가능하게 결합되어 세탁물을 수용하는 컨테이너를 포함하고,상기 컨테이너는,상면이 개구되고, 내측에 세탁물을 수용하는 컨테이너 본체; 및상기 컨테이너 본체의 외측면으로부터 돌출되어 상하로 길게 연장되고, 원주방향을 따라 배열된 다수개의 스레드를 포함하고,상기 다수개의 스레드는 각각,골로부터 산까지의 높이가, 하측에서 상측으로 갈수록 점점 증가되고,상기 밸런서는,상기 링형을 구성하는 내경부에 상기 다수개의 스레드와 맞물리는 치합홈들이 형성되는 세탁기.
- 제 1 항에 있어서,상기 각각의 스레드는 나선형으로 연장되는 세탁기.
- 제 2 항에 있어서,상기 나선형은 변곡점을 포함하여 구성되는 세탁기.
- 제 1 항에 있어서,상기 다수개의 스레드는,원주방향으로 차례로 배열된 제 1 스레드, 제 2 스레드 및 제 3 스레드를 포함하고,상기 제 2 스레드의 산으로부터 상기 제 2 스레드가 상기 제 1 스레드와 만나며 이루는 골까지의 거리와, 상기 제 2 스레드의 산으로부터 상기 제 2 스레드가 상기 제 3 스레드와 만나며 이루는 골까지의 거리는 서로 다른 세탁기.
- 제 1 항에 있어서,상기 컨테이너 본체의 외측면은,상측에서 하측으로 갈수록 상기 수직한 축과 점점 가까워지는 경사를 이루는 세탁기.
- 제 1 항에 있어서,상기 컨테이너는,상기 컨테이너 본체의 상단부에 형성된 환형의 림부를 더 포함하고,상기 세탁기는,상기 림부와 결합되고, 상기 컨테이너 내로 세탁물을 투입하기 위한 개구부가 형성된 세탁조 커버를 더 포함하는 세탁기.
- 수직한 축을 중심으로 회전되는 제 1 세탁조; 및상기 제 1 세탁조에 분리 가능하게 결합되어, 상기 제 1 세탁조와 일체로 회전되는 제 2 세탁조를 포함하고,상기 제 2 세탁조에는,다수개의 스레드가 원주방향을 따라 형성되고,상기 제 1 세탁조에는,원주방향을 따라 상기 다수개의 스레드와 각각 맞물리는 다수개의 치합홈이 형성되고,상기 다수개의 스레드는 각각,골로부터 산까지의 높이가, 상기 스레드의 하단에서 상단으로 갈수록 점점 증가되는 세탁기.
- 수직한 축을 중심으로 회전되고, 상면이 개방된 드럼;상기 드럼의 상단에 고정되고, 내경부에 다수개의 나선형의 치합홈이 원주방향을 따라 배열된 환형의 밸런서; 및상기 밸런서에 분리 가능하게 결합되어 세탁물을 수용하는 컨테이너를 포함하고,상기 컨테이너는,상면이 개구되고, 내측에 세탁물을 수용하는 컨테이너 본체; 및상기 컨테이너 본체의 외측면으로부터 돌출되어 상기 다수개의 치합홈과 각각 맞물리는 다수개의 스레드를 포함하고,상기 다수개의 스레드는,상기 외측면으로부터 돌출되어 다수개의 열을 이루는 하면을 각각 구비하고,상기 다수개의 스레드 중 서로 인접한 한 쌍을 각각, 제 1 스레드와 상기 제 1 스레드의 하측에 위치하는 제 2 스레드로 정의할 시,상기 제 2 스레드는,상기 제 2 스레드의 하면을 상방향으로 돌출(extruding)시켜 상기 제 1 스레드의 하면과 연결함으로써 구성되는 세탁기.
- 제 8 항에 있어서,상기 각 스레드의 하면은,상측으로 갈수록 상기 수직한 축으로부터 점점 멀어지도록 경사진 세탁기.
- 제 8 항에 있어서,상기 다수개의 스레드는 각각,상기 외측면으로부터 돌출된 높이가, 상기 스레드의 상단으로부터 하단으로 갈수록 점점 낮아지는 세탁기.
- 제 10 항에 있어서,상기 외측면은,상측에서 하측으로 갈수록 상기 수직한 축과 점점 가까워지도록 경사진 세탁기.
- 제 11 항에 있어서,상기 외측면으로부터 상기 제 1 스레드와 상기 제 2 스레드가 돌출된 높이들이 보이도록 상기 컨테이너 본체를 수평한 방향에서 바라볼 시, 상기 외측면으로부터 상기 제 2 스레드가 돌출된 높이는 상기 외측면으로부터 상기 제 1 스레드가 돌출된 높이보다 낮은 세탁기.
- 제 8 항에 있어서,상기 제 2 스레드는,상기 제 1 스레드의 하면과 상기 제 2 스레드의 하면을 연결하는 외주면이 상측에서 하측으로 갈수록 상기 수직한 축과 점점 가까워지도록 경사진 세탁기.
- 제 8 항에 있어서,상기 컨테이너 본체의 개구된 상면에 결합되고, 상기 컨테이너 본체 내로 세탁물을 투입하기 위한 개구부가 형성된 세탁조 커버를 더 포함하는 세탁기.
- 제 8 항에 있어서,상기 다수개의 스레드는 각각 나선형인 세탁기.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201980019314.7A CN111971431B (zh) | 2018-01-15 | 2019-01-15 | 洗衣机 |
AU2019207218A AU2019207218B2 (en) | 2018-01-15 | 2019-01-15 | Washing machine |
US16/962,283 US11414803B2 (en) | 2018-01-15 | 2019-01-15 | Washing machine |
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KR1020180005236A KR102456378B1 (ko) | 2018-01-15 | 2018-01-15 | 세탁기 |
KR10-2018-0005236 | 2018-01-15 | ||
KR10-2018-0036530 | 2018-03-29 | ||
KR1020180036530A KR102488372B1 (ko) | 2018-03-29 | 2018-03-29 | 세탁기 |
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WO2019139448A1 true WO2019139448A1 (ko) | 2019-07-18 |
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US (1) | US11414803B2 (ko) |
CN (1) | CN111971431B (ko) |
AU (1) | AU2019207218B2 (ko) |
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CN113403798B (zh) * | 2021-06-10 | 2023-10-24 | 南京信息工程大学 | 多层滚筒洗衣机 |
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- 2019-01-15 US US16/962,283 patent/US11414803B2/en active Active
- 2019-01-15 CN CN201980019314.7A patent/CN111971431B/zh active Active
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US11414803B2 (en) | 2022-08-16 |
CN111971431B (zh) | 2023-02-17 |
CN111971431A (zh) | 2020-11-20 |
US20210062388A1 (en) | 2021-03-04 |
AU2019207218B2 (en) | 2022-06-02 |
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